This paper deals with a new type of warehousing system, Robotic Mobile Fulfillment Systems (RMFS). In such systems, robots are sent to carry storage units, so-called "pods", from the inventory and bring them to human operators working at stations. At the stations, the items are picked according to customers' orders. There exist new decision problems in such systems, for example, the reallocation of pods after their visits at work stations or the selection of pods to fulfill orders. In order to analyze decision strategies for these decision problems and relations between them, we develop a simulation framework called "RAWSim-O" in this paper. Moreover, we show a real-world application of our simulation framework by integrating simple robot prototypes based on vacuum cleaning robots.


Coastal upwelling is examined as it relates to the cycling of chemical species in coastal waters along the west coast of the North American continent. The temporal and spatial features of upwelling phenomena in the Eastern boundary regions of the North Pacific Ocean are presented and discussed in terms of upwelling episodes


A set of experiments were conducted under completely randomized design in the germinator, greenhouse and field to investigate the effect of salinity on germination, emergence, biological yield, seed yield and plant height of Nigella sativa. Salt stress treatments were applied using NaCl solutions ranging from 0.3 (control) to 39 ds/ m (at germination), up to 15 ds/m (emerging stage) and up to 9 ds m (at seed set). The effect of salinity on seed germination, seed germination rate, shoot length, root length, seedling weight of seed, root to shoot ratio and seed vigor was significant at p<0.01. The highest germination rate 94.8% was observed in the salinity of 3 ds/ m and no germination was observed at the salinity of 36 ds/m. Salinity from 0.3 (controls) up to 15 ds/m significantly (p<0.01) influence on the rate and percentage emergence. The highest germination percentage 52.5% and emergence rate 9.2 seedlings per day were achieved in the control treatment. Seed yield, biomass and plant height were affected significantly (p<0.05) against different salinity treatments. It affects crops depending on degree of salinity from 0.3 to 9 ds.m-1, at the critical stages of growth, which reduced seed yield and biological yield from 105.5 to 40.2 g.m -2 and 550.2 to 268.6 g. m -2 respectively. Salinity stress did not change essential oil and fatty oil rate of Nigella sativa [1]. Keywords : Nigella sativa , salinity, growth stages, grain yield


In the chapter 17 of the book "Concert halls and Opera house" written by professor L. L. Beranek, the comprehensive effects of architecture factors on halls′ acoustic are referred to. An explanation from the point of architecture design and techniques, which is good to the interaction communication engineers is given. In this way, acoustics problems can be solved in concert halls design to achieve satisfying acoustic effects.


In today's modern world, globalization has completely changed the way of working. How we live, learn, work, and even define work has changed due to new information and communication technologies. It can be stated that human capital fuels the modern economy, but in reality, the information and communication technology revolution has turned intelligence into a valuable commodity. In today's economy, economic growth is based on mental intelligence rather than physical strength, and its worth is generated by recruiting knowledgeable workers and continuing to learn. Therefore, incorporating information and communication technology (ICT) into vocational and technical education and the educational system has a vast range of consequences for teaching and learning. ICT has enormous potential in developing vocational and professional teaching and learning content. Therefore educators have to be mindful in incorporating ICT into the educational transfer framework. However, this may result in typical guidance problems that come with reform, as it is, after all, an invention. Therefore, educators must be able to balance the advantages and disadvantages of embracing ICT as a tool.


By studying the impact of sequencing batch activated sludge process(SBR) to the filature wastewater treatment effect of various factors,the best operation conditions was obtained.The results showed that: when the aeration time is 8 h,the precipitation time is 40 min and dissolved oxygen value is 2-3 mg/L in SBR,it can achieve the best effect;under this condition,the removal rate of COD,ammonia nitrogen and TP are 90.5%±0.5%,95.1%±0.6% and 78.2% ±3.1%,and both of the effluent COD and ammonia nitrogen can reach the standards.As filature wastewater treatment subsequent aerobic process,SBR reactor has high treatment efficiency and good operation stability.


Macrolayer thickness in transition boiling was determined from the energy balance relation q ^-=ρlHfgδl·f, based on measurements of q ^- (time averaged heat flux in transition boiling) and f (detachment frequency of coalesced bubbles) for water and ethanol boiling on vertical and horizontal surfaces 15mm in diameter under atmospheric pressure. The macrolayer thickness for the vertical surface agreed well with the correlation proposed in the 7th report in this series, when heat flux at macrolayer formation is given on nucleate boiling curve extrapolated to the superheat of transition boiling. For the horizontal surface the macrolayer was apparently thick due to the in flow of bulkliquid beneath growing vapor masses.


A rhodium-emitted X-ray with a photon energy at 20 KeV was employed to irradiate CaF2 with different surface finishing. Color centers associated with the irradiation damage were determined by spectral measurements. The depth distribution of the color centers was calculated and confirmed in a wedge spot generated by magnetorheological finishing. The results suggest that the color center formation is directly associated with the damage resistance of the optics. Laser durable grade CaF2 demonstrates higher damage resistance to the X-ray irradiation when compared to excimer ArF laser grade CaF2. Subsurface-damage-free CaF2 surfaces further enhance the damage resistance.


It was a usual day for the teacher. One of her special education students was home ill, and the rest were being themselves, which meant that their handicaps and the accompanying social spinoffs gave them special needs that demanded special attention. They had had guests in their classroom before. Some got in the way, some had contributed in a modest way, and some had come merely to observe quietly and learn. But today a performing artist had been scheduled for an hour. The special education director had told the teacher what he had learned about the performer from the artist in the classroom project director and had given her a one-page flyer that described the artist and what the artist would do with the class. The flyer used terms similar to educational objectives, such as "motor skills," "language and math development," "sequencing," "social awareness," and "self-esteem," but the teacher didn't notice because she really expected only a performance. After all, that's what performers do. It would be a nice change for the students, but she would have to devise a way to catch up for what she had originally planned. When the artist arrived, the teacher had forgotten the time because she was deeply involved in one student's math problems. She greeted the artist and asked what he needed. While they were getting things ready, the artist began to ask about the students and her objectives for each of them. She was surprised at the artist's interest in and understanding of exceptional children and pleased that he wanted to know something about each student and his or her special needs. The artist also gave her an evaluation sheet and asked her to mail it, unsigned if she chose, to the project director after the session. Then the artist began his presentation. He did indeed perform, but he also learned the students' names and gradually won their respect and interest. By the time the session was over, all the students were deeply involved. Their minds and bodies were being challenged to create, to solve problems, to articulate, and to express themselves in new ways. They didn't want the artist to leave-and neither did the teacher. The artist spent a few extra minutes with A member of Company 7, Yakima, Washington, gets the students involved at the Washington State Very Special Arts Festival (above), as does a storyteller in the classroom for the Washington State Artist in the Classroom Project (right).


It has always been an important issue for our nation how to deal with national moral tradition properly in the past more than 100 years.In the long-term struggle of Chinese and Western cultures,struggle of the tradition and the modernization,our national tradition has suffered too much misunderstanding and censure.We are worried too much about the bad consequence caused by the break of national moral tradition.To treat the national moral tradition correctly,we must understand its connotation,analyze its essence to see whether it does conform with the human nature,whether it has universal values.Only on this basis,can it be possible to realize the creative transformation,to make the past serve the present,and even serve the world,and make our unique contribution to our nation for the future of all mankind.


Using scanning electron microscope (SEM), The CSF leucocytes from 3 healthy subjects and 12 patients with various NS diseases were observed. The findings were used to compare with those by optical microscope (OM) and those of human peripheral blood cells by SEM. Five types of CSF cells with particular surface structures, are emphasized in relation to both optical microscopic findings and the involved diseases.


This study is centered on the production of bio-hydrogen from cassava wastewater and its statistical analysis. Analysis of the sample was carried out by determining the physiochemical properties of the cassava wastewater for its suitability for industrial application. A broth medium was prepared, substrate preparation and inoculum pretreatment were carried out and the medium was cultivated following standard method. To optimize the process condition, response surface methodology (RSM) and artificial neural network (ANN) were engaged. An experimental design was carried out using RSM, three variable factors such as fermentation time (X1) (days), pH effect (X2) and substrate concentration (X3) (mg/L) were considered and 17 experimental runs were created. Results showed the physicochemical properties of wastewater had an initial pH of 5.58 (low acidity), total diffuse solid (TDS) of 3.93 mg/l, chemical oxygen demand (COD) of 0.25 mg/l and biochemical oxygen demand (BOD) of 0.16 mg/l. The statistical analysis by RSM predicted bio-hydrogen yield (HY) of 4.011 ml at X1 = -1, X2 = -1 and X3 = -0.043 variable conditions, this was validated in triplicate experiments, and the average HY was 3.98 ml. Similarly, ANN statistical software predicted HY of 4.221 ml at X1 = - 1, X2 = -1 and X3 = -0.032 variable conditions, this was also validated in triplicate experiments, and the average HY was 4.002 ml. The coefficient of determination (R2) and R-Sq. (adj.) for RSM (99.98% and 99.96%) and ANN (99.993% and 99.986%) indicate that the model fitted well for the acceptable representation of the relationship among the variables under consideration. The results of this experiment established that the use of both RSM and ANN with appropriate experimental design can give the optimum yield of bio-hydrogen, even though, ANN predict better than RSM in terms of yield of bio-hydrogen.


Database triggers allow database users to specify integrity constraints and business logics by describing the reactions to events. Traditional database triggers can handle mutating events such as insert, update, and delete. This paper describes our approach to incorporate timer-triggers to handle temporal events that are generated at a given time or at certain time intervals. We propose a trigger language, named FZ-Trigger, to allow fuzziness in database triggers. FZ-Triggers allow fuzzy expressions in the condition part of a trigger with either a mutating event or a temporal event. This paper describes the generation of temporal events, the language of FZ-Triggers, and the system implementation. We also present a motivating example that illustrates the use of FZ-Trigger in the case of reacting to temporal events.


A simplified method for calculating the composition of vinyl chloride-vinyl acetate copolymers has been proposed in this paper. The composition nomogram and the composition distribution diagram of the copolymer containing 0.84-0.96 mole fraction of vinyl chloride have been constructed. If strict uniformity in the composition of the copolymer is not required, the copolymer containing 85-95% vinyl chloride by weight may be manufactured by the once-charge method. The simplified method may be extended to compute the composition of other copolymer systems with γ1 1, γ2 1 in which the monomer M1 is the main component.


Aim To determine the liquidambaric acid in Fructus Liquidambris.Method Fructus Liquidambris was extracted in EtOH by microwave.The liquidambaric acid was determined by HPLC-ELSD.Diamonsil C 18 column was used,the mobile phase consisting of methanol-0.7% acetic acid(85∶15).The flow rate was 1.0 min-1.The column temperature was 30℃,and the temperature of drift tube was 45℃.Nitrogen gas as carrier gas,the flow rate was 3.5 ml·min-1,with a universal detector evaporation light scattering detector(ELSD).Contents were calculated with external standard two-point method.Results The linear response range of liquidambaric acid was from 0.058 to 0.580 g·L-1(r=0.9997).The average recovery was 98.9%,and RSD was 1.25%.Conclusion There are great differences among different originations.The content of liquidambaric acid in Hubei fructus liquidambris is the most,which was valuable for further exploitation and application.


Susan Parham, 'From the agora to the modern marketplace: food markets as landscapes of pleasure, purpose and plenty in historical review', in in Joshua Zeunert and Tim Waterman, eds., Handbook of Landscape and Food (London: Routledge, 2018), ISBN: 9781138125155.


The High Efficiency Cooler (HEC) space flight cooler performance has been extended both at lower temperatures (<40K) and at higher temperatures (>140K) with higher cooling powers. The 21 flight coolers delivered to date were configured for each of their payloads with customized linear and coaxial one and two temperature cold heads. The one temperature cold head requirements ranged down to 40K and in the case of the 2 stage coolers, upper temperature requirements ranged as high as 140K. Recently the need for higher cooling power coolers below 40K and above 140K has motivated us to develop pulse tube cold heads to address these requirements. In both cases only the cold heads are changed and are variants of existing designs that can be integrated with the existing flight proven compressor and flight drive electronics. As a consequence these higher capacity coolers have similar low masses (<5.5kg) to the existing flight coolers. INTRODUCTION Northrop Grumman's HEC coaxial coolers have been characterized over a wide range of operating conditions. The single stage cooler was tested at cooling temperatures between 40K and 150K. High cooling capacity has been measured at temperatures of 150K and above. The two-stage coaxial HEC cooler has a simultaneous cooling capacity at 35 K and 100 K, with the advantage of the low mass of the HEC compressor. CRYOCOOLER The High Efficiency Cryocooler (HEC) can be configured with either a linear or a coaxial cold head with a low mass flight qualified compressor as shown in Figure 1. This integral pulse tube cooler configuration consists of a vibrationally balanced compressor driving a pulse tube cold head. The coaxial and linear HEC cooler have the same mechanical and thermal interfaces. The two stage coaxial cooler uses the same compressor with a parallel two stage cold head configuration. The parallel configuration allows flexibility in designing the distribution of energy between the stages. The efficiency of the low temperature stage is improved due to the heat strapping between the stages. 79 Cryocoolers 17, edited by S.D. Miller and R.G. Ross, Jr. ©¶International Cryocooler Conference, Inc., Boulder, CO, 2012


IN THE EYES OF NINETEENTH-CENTURY abolitionists, especially Josephine Butler, France was the fatherland of regulation. The "French system," a mass of regulations developed during and after the Consulat, served as a model for all of Europe. Even in Great Britain, the Contagious Diseases Act of 1866 drew its inspiration from this system. Consequently, we cannot overestimate its importance. In their respective discourses, municipal authorities, hygienists, the police, and the judiciary attempted to justify clearly (perhaps too clearly) their arrangements for the regulation of prostitution. They reiterated a small number of arguments that quickly became pat stereotypes. These arguments, which encumber denotative discourse, can be grouped in three categories. -The most frequent ones appeal to the need for the protection of public morality. In particular, these arguments insist on the importance of protecting young girls' innocence and feminine modesty from the spectacle of vice, and of preserving male adolescents from precocious sexual contact and female adolescents from the snares of the seducer. The arguments emphasize the necessary tranquility of the passerby and aim to shield the family outing from erotic scenes; they also refer to the protection of sexual morality. The desire to prevent the spectacle of prosperous vice from offending the eyes of poor but honest women is cited less frequently. -The second series of arguments centers around the protection of male prosperity. Commercial sexuality can devastate patrimonies; it can hasten and pervert the accepted stages of social mobility, if one is not careful, and can thwart the most cleverly contrived patrimonial strategies. -The need to protect the population's health forms the third category of justification. The relative importance of these arguments varies according to periods. The ascendancy of the sanitary alibi, although not linear, is obvious. The obsession with congenital syphilis contributed to reviving this argument at the end of the century. When, in 1960, France slowly endeavored to respect the United Nations' injunctions, only "sanitation" continued to require the preservation of certain


The paper presents an approach for plagiarism detection using Microsoft SQL Server platform in a large corpus of documents. The approach was used for participation in the first international plagiarism detection competition that was held as a part of PAN'09 workshop. The main advantages of the proposed approach are its high precision, good performance and readiness for deployment into a production environment with relatively low cost of the required third party software. The approach uses fingerprinting-based algorithm to compare documents and Levenstein's metric to markup plagiarized fragments in the texts.


Objective A survey on iodine nutrition level and pituitary thyroid axis function in adults and children aged 8~10 years old after supplementation of iodine salt for two years was conducted in IDD area (A iodine prophylaxis measurement was carried out before supplementation of iodine in 1995) and Non IDD area.Methods A cluster sampling was used to adults,a stratified sampling was used to children.Results The goitre rates decreased form 9.41%,3.95% to 3.49%,2.22% respcetively in 8~10 years children,from 2.91%,1.09% to 1.31%,0.17% respectively in adults after supplementation of iodine in IDD area and Non IDD area,the discrepancys of urinary iodine level were all not significant (P0.25).The level of serum T 3 of children in IDD area was much higher than that in Non IDD area (P0.01),the level of serum T 4 of adults in IDD area was much higher than that in Non IDD area (P0.05),the levels of serum T 3,T 4,TSH of children were much higher than that of adults in same area.Compared with the levels of serum hormones before supplementation of iodine,TSH significantly declined,T 3,T 4 rised significantly,the rates of thyroid iodine uptake of adults in Non IDD area after supplementation of iodine declined significantly (P0.01).Conclusions Prophylaxis program of iodine salt presently is fruitful to prevent IDD.of these 8~10 years children in two areas,some were attributed to sub clinic hypothyroidism groups,supplementation of iodine to special groups should be highlighted. [


Electrical Resistance Tomography(ERT)is a popular process tomography technique and has been widely used in many industrial areas.However,the inverse problem of the ERT system is ill-conditioned.Therefore,a symmetric conjugate gradient algorithm based on QR decomposition(RQSCG)was proposed.It is theoretically proven that this algorithm can converge only by one step.In addition,simulation results also show that this algorithm gives a better imaging quality and reduces computational time obviously,compared with conjugate gradient(CG)algorithm.


Determination of arsenic by atomic fluorescence spectrometry with bi-anode electrochemical hydride generation(BAECHG)was investigated.This novel method reduced the use of chemical reagents and thus reduced environmental pollution because no chemical hydride generation procedure was used.Under the same conditions,the hydride generation efficiency of BAECHG was 99.0%-101.6% of that of chemical hydride generation method.Parameters and interference conditions were investigated.Under the selected conditions,the linear range was 0-120 μg/L for arsenic(As,injection volume: 100 μL).The detection limit(signal to noise ratio of 3∶1) was 0.64 μg/L.The relative standard deviation(RSD) obtained by using standard solution with 60 μg/L of As was 2.0%(n=13).The proposed method was applied to analyze the reference soil sample(GBW07406),the result was consistent with the certified value.The spiked recoveries of piglet feed sample were 97.0%-103.0%.High sensitivity and good repeatibility are the advantages of this method.


A program requiring the collection of large numbers of adult alfalfa weevils, Hypera postica (Gyllenhal), necessitated the development of an effective collection apparatus. A "trawl net" was designed and constructed to be dragged behind a field motorcycle (Fig. 1). The rectangular outer rim of the net consisted of ½-in.-diam steel rod, 5 ft long and 1 ft high. The net itself consisted of 4 pieces of "tuff-tarp" (vinylized nylon) sewn together. The 2 pieces which made up the top and the bottom were triangular with a base and height of 5 ft. The 2 side pieces were 66 in. long and tapered from a 1 ft width at the base to 6 in. at the point of the net. Lightweight chain was used to attach the net to the rear of the motorcycle.


At present, there are many problems in the development of rural e-commerce in Jiangxi province. Aiming at these problems, in-depth investigation is carried out, and countermeasures are put forward to provide strong intellectual support for the development of rural e-commerce.


University English entrance exams are commonplace in Japan and competition for entrance to high-ranking institutions is fierce. Given the high-stakes nature of such exams, high school leavers typically attend exam preparation courses at juku cram schools. Juku are part of the shadow education sector, which has a huge presence in the East Asian region but which has escaped the attention of language education researchers. Moreover, while the entrance exams have been summarily criticized, limited empirical research exists into the washback effect upon students' language learning. The present study constitutes a medium-scale investigation into the learning behaviour, experiences and language proficiency of 133 undergraduate students at a prestigious Japanese university, all of whom had attended juku prior to entering university. Survey and interview data clearly show a focus on reading, grammar, and test-taking techniques, and a complete lack of focus on speaking skills. The focus on receptive abilities is also reflected in language proficiency scores on IELTS Tests taken during the first year at university. Washback from the entrance exams on language learning is discussed within the context of juku cram schools in Japan.


Abstract. The domestic cat Felis silvestris catus is known to be one of the most notorious invasive alien predators. Seabirds are typical taxonomic groups that have been impacted by free-ranging cats on islands, and their headless carcasses are frequently observed. We conducted genetic predator identification of the carcasses of streaked shearwater Calonectris leucomelas and described their characteristics on Mikura Island, Japan, where free-ranging cats were blamed for the recent rapid decline of the shearwater population. Eight carcasses of streaked shearwaters were found in the survey. Genetic analysis of swab samples from scarred tissues of the carcasses detected cat DNA and identified cat predation on six out of eight carcasses. All six cat-positive carcasses were headless or almost headless with the head and body faintly connected by esophagus and trachea, several of which were missing their intestines. We describe the conditions of these headless carcasses, noting the main characteristics that could lead to suspicion of cat predation. To the best of our knowledge, this is the first genetic predator identification using seabirds, and may make more stakeholders aware of the reality of cat predation worldwide. On Mikura Island, we expect that this evidence will contribute to the development of systematic cat management. Abstract in Japanese (要旨). オオミズナギドリの首なし死骸はネコの捕食によるものだった:遺伝学的捕 食者検出によるエビデンス.イエネコ Felis silvestris catus は,最も有名な侵略的外来捕食者の一つとして知 られている.海鳥は,島嶼においてイエネコの影響を受けてきた典型的な分類群であり,首のない死骸が頻 繁に観察されることがある.本研究では,御蔵島において,イエネコによって近年個体数が減少していると 言われているオオミズナギドリ Calonectris leucomelas の死骸を対象に,遺伝的捕食者検出を行い,さらに死 骸の特徴を明らかにした.今回の調査では,オオミズナギドリの死骸を 8 個体分発見した.死骸の傷口から 採取したスワブサンプルの遺伝子分析により,8 つの死骸のうち 6 つでイエネコの DNA が検出され,イエ ネコの捕食が確認された.これら 6 つの死骸はすべて頭がないか,頭がかろうじて食道や器官で胴体部とつ ながったほぼ首なしという状態で,そのうちのいくつかは消化管も消失していた.本研究では,この首なし という死骸の状態について,イエネコの捕食を疑うことができる主な特徴として提示する.我々の知る限り, 本研究は海鳥を対象とした初めての遺伝的捕食者検出の事例であり,これにより世界的なイエネコの捕食の 実態が,より多くの関係者に認識されるようになるであろう.さらに,この遺伝学的エビデンスが御蔵島に おける本格的なイエネコ対策の展開に貢献することも期待される


The text in front of you is not intended to accurately and comprehensively describe the development of online study at DOBA, and I would like to highlight some memory points for some important ideas in it. Also, because these are still considered as the basic ideas and starting points for the development of online education.At DOBA, we have formulated an online study strategy adopted at key DOBA bodies. We have decided on the most demanding model of distance learning combined with e-learning, for fully online supported learning - online learning without a physical presence between student and professor. Through comprehensive student support and modern pedagogical approaches, we ensure high student activity, achievement of goals, competences, learning outcomes, and modern assessment and assessment of knowledge.During the study we provide students with pedagogical, organizational and technical support. Students are accompanied by professors and online tutors. The role of the latter is primarily motivational; students are available 24 hours a day seven days a week.The online study model at DOBA puts us side by side with online study models that are regarded as the most imaginative and quality on a global scale. It was designed in response to the need to enrich and increase the accessibility of the educational space in Slovenia, to respond to the needs of individuals for greater flexibility, individualization, quality of their knowledge and competences, to support lifelong learning and, last but not least, to bring global trends into our space.


The four-plated barnacle Tesseropora alba
Ren and Liu, 1979
is recorded for the first time away from its type locality in the Xisha Islands, South China Sea. The new localities are northwestern Taiwan and Okinawa. The species is redescribed in detail, with a discussion of its likely geographical range in the Pacific.


Preassembled, prealigned microlens systems have been fabricated in PMMA using Deep X-ray Lithography (DXRL)1. These systems consist of crossed cylindrical lenses with ≈0.3-mm apertures. Lithographically defined masks and two exposures from a synchrotron beam can produce arrays of micro- imagers, micro-spectrometers, etc.


[Co(3 ( A)/Pt(tPt)]30 (1 1 1) multilayers were prepared by molecular beam epitaxy. X-ray diffractions show clear satellite peaks around the Co/Pt fundamental peak, indicative of a good modulated structure for all Co/Pt multilayers. The optimal perpendicular magnetic properties were obtained for 6 ( AotPto10 ( A. The effect of Pt buffer (BPt) upon the magnetic property of [Co(3 ( A)/Pt(10 ( A)]30/Pt(BPt) is also studied. X-ray diffractions reveal that the superlattice peaks of [Co(3 ( A)/Pt(10 ( A)]30/Pt(BPt) increase with increasing BPt: The Kerr rotations and polar coercivity Hc increase with increase in BPt but both saturate at about BPt=200 ( A. r 2002 Elsevier Science B.V. All rights reserved.


Percutaneous coronary intervention(PCI) is an important therapeutic regimen of coronary heart disease.However,there are a considerable proportion of patients suffering from a second operation or even death because of adverse cardiovascular events.There are still disputes over its effect,usage,time,safety and so on.In recent years,more and more clinical researches show that statin loading before PCI can effectively decrease cardiovascular endpoint events.This article summarizes the research progress in the effect,mechanism and safety of statin loading before PCI,in aiming to provide a relatively systematic reference for clinical practice.


This paper presents the output voltage regulation stability of the output voltage in a Single Ended Primary Inductor Converter (SEPIC) operating in the continuous conduction mode using a voltage control feedback system. The performance of the developed controller is validated at different working conditions using PSIM simulation software. The results show that the designed controller produced a good output voltage regulation under different operation condition such as varying the input voltage in a wide input range. The efficiency of the designed SEPIC converter is greatly improved and robust to the wide input range typically encountered in space application employing solar energy as the primary source of energy.


The first tenured woman physics professor at ETH Zurich, and a career‐long campaigner for fair play and a level playing field for women in science, Ursula Keller, talks to Francesca Moglia, EPIC's former photonics technologies program manager.


This paper evaluates the commercially available semiconductor switches for automotive applications. For this purpose, a conventional Silicon (Si) Insulated Gate Bipolar Transistor (IGBT) is compared with a Silicon Carbide (SiC) Metal Oxide Semiconductor Field Effect Transistor (MOSFET). Performance criteria for automotive drive systems are compared between the two switches. Electromagnetic interferences due to the switching times of the switches are studied. A test is performed to measure the actual power losses for both switches. Using the simulated model of the heatsink, the temperature of the junction for each switch is estimated. Afterwards, the results are compared with the data provided in the technical documents of the switches.


This report summarizes work on chaotic behavior control in FBC systems. An update is given to the chaos control method designed to control the chaotic behavior in an FBC system; this method inludes a fully recurrent neural network called the Dynamic System Imitator (DSI). DSI mimics the behavior of a wide variety of dynamic systems in the real world; it was used for modeling linear, nonlinear and chaotic systems, and is also used for iterative prediction of chaotic system behavior. A general methodology for using the DSI to control a nonlinear system is applied to control the chaotic behavior of the Lorenz System. A plan is also outlined for using this method to the FBC system for predicting and controlling its chaotic behavior. Chaotic pressure data from an experimental FBC system was obtained (from METC) on normal and abnormal mixing. Results of chaos analysis applied to these data are presented. These techniques are used to identify the system behavior at different conditions, estimate system order, construct the system attractor, and locate the chaotic behavior in the pressure-drop time series data. Preliminary analysis show that both normal and abnormal conditions of FBC have chaotic characteristics. Objective is to develop a neuro-chaosmore » controller to preserve the normal operational performance of the system.« less


Elliptical galaxies are believed to consist of a single population of old stars formed together at an early epoch in the Universe, yet recent analyses of galaxy spectra seem to indicate the presence of significant younger populations of stars in them. The detailed physical modelling of such populations is computationally expensive, inhibiting the detailed analysis of the several million galaxy spectra becoming available over the next few years. Here we present a data mining application aimed at decomposing the spectra of elliptical galaxies into several coeval stellar populations, without the use of detailed physical models. This is achieved by performing a linear independent basis transformation that essentially decouples the initial problem of joint processing of a set of correlated spectral measurements into that of the independent processing of a small set of prototypical spectra. Two methods are investigated: (1) A fast projection approach is derived by exploiting the correlation structure of neighboring wavelength bins within the spectral data. (2) A factorisation method that takes advantage of the positivity of the spectra is also investigated. The preliminary results show that typical features observed in stellar population spectra of different evolutionary histories can be convincingly disentangled by these methods, despite the absence of input physics. The success of this basis transformation analysis in recovering physically interpretable representations indicates that this technique is a potentially powerful tool for astronomical data mining.


A rotor blade assembly (100) for a wind turbine (10) is disclosed. The rotor blade assembly (100) comprises a rotor blade (16) with surfaces having a pressure side (22), a suction side (24), a leading edge (26) and a trailing edge (28) define extending between a tip (32) and a root (34) extend. The rotor blade (16) further comprises a Gerauschverminderer (110) that is configured on a surface of the rotor blade (16), wherein the Gerauschverminderer (110) comprises a plurality of teeth (112), each of said plurality of teeth (112) a center line (128) sets. The centerline (128) of each of the plurality of teeth (112) defines an individual customized angle depending on the spannwartigen position, the local sheet width (46), width (1020), length (124), bending angle (134), and thickness (140).


Antennas are a critical component for most if not all Army electromagnetic (EM) communications and sensor systems. The number of EM systems per platform is large and growing, which places severe restrictions on system size, weight, and power. The ever-increasing demand for bandwidth and interoperability will only make these systems more complex, driving the need for innovative basic research on multifunctional systems and antennas. This paper will provide an overview of the structure and function of the U.S. Army science and technology enterprise, describe requirements and applications for Army antennas and the EM environment in which they operate, and suggest promising areas for future research.


Poisson spaces provide the natural setting for Hamiltonian mechanics and compactifications of symplectic manifolds. In this paper, we give a brief survey on a class of Poisson manifolds related to Lie theory which have their origins in quantum groups.


A man of 79 was brought to hospital having been found collapsed on the floor. He was aphasic and unable to give a history. On examination he had a right hemiparesis with hyperactive reflexes and an extensor plantar response on that side. There was expressive dysphasia but comprehension was spared. Pupils were reactive to light and accommodation and there were no cranial nerve deficits. Carotid pulsations were normal with no bruit. A left hemisphere CVA was diagnosed provisionally, aspirin 300 mg was prescribed, and he was admitted to the ward pending a cerebral CT scan and the results of his blood tests. One hour later the nurses contacted the admitting physician to say that the patient's symptoms had fully resolved. Soon after that, the nurses contacted the physician to inform him that the hemiparesis had returned, but this time affecting the left side and sparing the right. The admitting team saw him again and confirmed that he now had a left-sided hemiparesis. At this stage, the blood results became available and revealed a blood glucose of 1.8 mmol/L. 100 mL 50% intravenous dextrose was given and the symptoms again resolved. In retrospect, the original resolution of symptoms had occurred after lunch on the ward. The patient, now able to give a history, confirmed that he had longstanding diabetes treated with glibenclamide 2.5 mg daily. He had taken two tablets that morning by mistake. A 10% glucose drip was continued overnight and he was discharged 24 hours later with normal glucose and no neurological deficits. The district nurse arranged for him to have his medications dosetted to avoid further drug errors. Neither the casualty card nor the admission clerking indicated that an on-site blood glucose test had been done. A stroke proforma that requires documentation of such a test result has now been adopted.


OBJECTIVE: To control the infection effectively and to prevent the flora disequilibrium in vivo in host,reduce the drug hypersus ceptibility in patien, other Adverse Drug Reaction,and the development of bacterica tolerance. METHODS: when the doctor uses the antibiotics they must know the adaptation of the drugs and follow the principle to safety, utility and economy. Medical establishment should have the strict supervision provision, to advance and assurance the reasonable application in perioperation. RESULTSCONCLUSION: Reasonable application in Perioperation prevent infection to show the kinds of drug, the doses, the times, the ways, patiens,the course and the suitable destination of therapy.


In this paper, a strong multiplicity one theorem for Katz modular forms is studied. We show that a cuspidal Katz eigenform which admits an irreducible Galois representation is in the level and weight old space of a uniquely associated Katz newform. We also set up multiplicity one results for Katz eigenforms which have reducible Galois representation.


Many organizations providing IT services try to be service-oriented at the business layer and at the IT layer. To do so, these organizations follow a service-orientation for their management and business processes while working with a service-oriented system (SoS). This should improve, i.a., their work organization during the service implementation projects and the exchange of information between the stakeholders. However, a very few papers bring solutions for aligning an IT service management (ITSM) framework –which represents the business layer– with a service implementation methodology –which stands for the IT level. In this paper, we detail the Papazoglou's service design and development methodology in order to align it with ITIL V.3, which is probably the most used ITSM framework. This work should help the staff of companies respecting the ITIL V.3 best practices and owing an SoS in their communication and in their project management, leading to the implementation and the composition of services.


The leakage neutron spectra measurements have been done on benchmark spherical assemblies with Cf-252 source in center of 1) heavy water sphere with diameter of 30 cm (with Cd cover) and of 2) iron spheres with diameter of 100 cm and 50 cm. It has been stated for years that transport calculations by iron overestimate measured spectra in energy region around 300 keV by about 20-40 % (calculation to measurement ratio C/E = 1.2-1.4). The influence of an artificial changes in cross-section XS-Fe-56 (n,elastic)designed by IAEA, Nuclear Data Section, has been studied on the iron spheres. Influence of those XS-corrections to calculated neutron spectrum is presented.


ABSTRACT Four children (aged 3;9 to 5;5) were recorded talking to different listeners (adult, peer, baby, and baby doll) and role-playing a 'baby just learning how to talk'. As a measure of the children's responsiveness to situational cues, each sample was analysed for formal and functional characteristics. The children's speech was different on many of the measures when talking to a baby or doll as compared with the speech to a peer or adult. Speech to a baby doll was similar to that addressed to a real baby, indicating that feedback is not necessary for speech modifications to occur. In the role-playing situation, children changed and simplified their speech when talking as a baby.


The invention discloses a vegetable protein peptide stock solution with body firming, repairing, wrinkle resisting and skin quality improving effects as well as a preparation method and application of the vegetable protein peptide stock solution. Active ingredients of the vegetable protein peptide stock solution are from the following raw materials in parts by weight: 1-10 parts of silybum marianum extract, 0.01-0.3 part of carnosine, 0.01-0.2 part of palmitoyl tripeptide-5 and 0.1-3 parts of yeast extract. The invention also discloses a preparation method and application of the vegetable protein peptide stock solution. The prepared vegetable protein peptide stock solution is comprehensively applied to multiple ways for delaying senescence; silybum marianum extract, carnosine, palmitoyl tripeptide-5 and yeast extract are adopted in a specific ratio, and the four substances cooperate mutually to obviously take effects obvious body firming, skin repairing, wrinkle resisting and skin quality improving effects.


A 2D axi-symmetric theoretical model of dielectric porous media in intermittent microwave (IMW) thermal process was developed, and the electromagnetic energy, multiphase transport, phase change, large deformation, and glass transition were taken into consideration. From the simulation results, the mass was mainly carried by the liquid water, and the heat was mainly carried by liquid water and solid. The diffusion was the dominant mechanism of the mass transport during the whole process, whereas for the heat transport, the convection dominated the heat transport near the surface areas during the heating stage. The von Mises stress reached local maxima at different locations at different stages, and all were lower than the fracture stress. A material treated by a longer intermittent cycle length with the same pulse ratio (PR) tended to trigger the phenomena of overheat and fracture due to the more intense fluctuation of moisture content, temperature, deformation, and von Mises stress. The model can be extended to simulate the intermittent radio frequency (IRF) process on the basis of which one can select a suitable energy source for a specific process.


Word petrification is a common problem in language study. Many researchers attribute this problem to such external factors as different language forms and different cultures. However this article analyzes word petrification from the perspective of psycholinguistic mechanism of cognition. It describes word petrification from the following three internal factors: mental representation,word network and affective factors.


Performance degradation assessment has emerged to realize equipment's near-zero downtime and maximum productivity. Exploring effective indices is crucial for it. In this study, taking rolling element bearing as a research object, cyclic energy indicator is proposed for its performance degradation assessment. The proposed cyclic energy indicator is based on signals' cyclic coherence analysis and its variation with the damage extent of the rolling element bearing is verified through simulation and seeded fault experimental data. Then an accelerated life test of the rolling element bearing is performed to collect vibration data over the whole life time (normal-fault-failure). Results of both simulation and experiments show that the cyclic energy indicator is an effective index for the degradation assessment of rolling element bearings.


This contribution presents a course curriculum as well as conclusions drawn from a quasi-interventional study on the development of advanced English writing skills in an interdisciplinary English-medium instruction (EMI) management degree program at the master's level, offered at a Midwestern German university. Two English for specific purposes (ESP) writing instructors and seven discipline-specific lecturers in the life and social sciences contributed to a writing-intensive course design in team-teaching partnerships (Lasagabaster, 2018) formed during the implementation of a 14-week core module in the interdisciplinary degree program. The student group in the present project (n=20) provides an illustrative example of today's superdiverse student populations in higher education (Donahue, 2018). In order to document developments in the students' EFL writing skills, EFL sourcebased academic writing assignments were collected from the students prior to and after the module. Also prior to and after the module, students completed extensive writing-focused surveys, documenting the students' declarative writing skills and the students' attitudes towards different types of advanced EFL writing.


A traumatic diaphragmatic defect in acute phase is accompanied by respiratory signs and symptoms attributed to pneumothorax and hemothorax. Repair of defect is a necessity. Untreated defects would be overwhelmed by diaphragmatic stomach herniation leading to strangulation, gangrene and even death.


In the statistical problem of nonparametric Bayesian analysis we have a random probability P belonging to Π and having a particular prior distribution. Given P = P , we also have a random sample X 1 ,. .. , X n , which are iid P taking values in χ. Based on the sample, our objective is to estimate a function φ(P) of P , with respect to a certain loss function. Most of the applications presented in this chapter use the Dirichlet process prior or its variants—Dirichlet Invariant process and mixtures of Dirichlet processes. In Chap. 3 while dealing with censored data, we use other priors such as the neutral to the right processes which are more suited to such data, but obviously they are applicable in the uncensored data case as well. In this chapter, first we will deal primarily with estimation problems and thereafter we will present hypothesis testing and other applications briefly. We will consider the distribution function (CDF) or its functionals. Since the Dirichlet process prior is conjugate, the strategy will be to obtain first the Bayes estimator of φ for the no sample problem and then to update the parameter(s) of the prior to obtain Bayes estimator for any sample size n. Through out this chapter we assume that we have a random sample X 1 ,. .. , X n from an unknown distribution function F (corresponding to P) defined on the real line. In the case of two sample problem, we will have a second sample Y 1 ,. .. , Y n from another distribution function, say, G. Both samples will be assumed to be independent. The loss functions used are a weighted (integral) squared error loss L 1 for the distribution function and a squared error loss L 2 for its functionals, where L 1 (F, F) = F (t) − F (t) 2 dW (t); L 2 (ϕ, ϕ) = (ϕ − ϕ) 2 , (2.1) with W being a given weight function or a finite measure on (R, B). Through out this and the next chapter, we will denote the samples by bold letters , such as X = (X 1 ,. .. , X n), the sample distribution by F n (t) and the Bayes estimator with respect to the Dirichlet prior D(α), by F α. Additionally, we let


BACKGROUND
More than two thirds of new of nasopharyngeal carcinoma (NPC) cases occurring in the east and southeast parts of Asia. As a consequence, the development of intervention programs that can educate and assist patients of NPC in adopting and maintaining long-term behavioral changes to prevent further progression of the disease and improve quality of life represents a continuing need.

METHODS
Patients diagnosed with NPC (n=141) completed chronic disease self-management questionnaires (CDSMP) before, immediately after, and 3, 6, and 12 months after receiving primary cancer treatment. An independent-samples T test was used to compare mean changes in chronic disease self-management (CDSM) items between the intervention group and control group.

RESULTS
There was no difference between the two groups at baseline. Patients who received an intervention demonstrated a significant improvement in fatigue and shortness of breath after treatment. They also demonstrated significant improvements in weekly minutes of aerobic exercise and stretching/strengthening exercise. These advantages lessened slightly with elapsed time.

CONCLUSIONS
For NPC patients, nutrition counseling combined with head and neck rehabilitation exercises can greatly reduce fatigue and shortness of breath and greatly increase the use of stretching/strengthening and aerobic exercise 3 months after intensity-modulated radiotherapy (IMRT).


he Prison Rape Elimination Act of 2003 (P.L. 108-79) (PREA) requires the Bureau of Justice Statistics (BJS) to carry out a comprehensive statistical review and analysis of the incidents and effects of prison rape for each calendar year. This report fulfills the requirement under Sec. 4(c)(2)(B)(ii) of the Act to provide a list of juvenile correctional facilities according to the prevalence of sexual victimization. T


We present an application of a multi-agent cooperative search approach to the problem of optimizing gas pipeline operations, i.e. finding control parameters for a gas transmission network that result in a low usage of energy to make the required gas deliveries. Our cooperative search approach improves on the pure competition of search agents by having them exchange good solutions from time to time that both are integrated into the search state of the agents and used to improve the search control of the agents. Our experimental evaluation with real problem instances from TransCanada show that our system meets TransCanada's time requirements and reliably outperforms the interactive method that is the current state-of-the-art by creating solutions that require more than 10 percent less energy.


The purpose of this paper is to discuss,through four changes happened in foreign language teaching and learning,the influence of internet and Web to the foreign language teaching and the set-up of new teaching models.The paper aims to prove that the application of modern educational technology serves as a response to the call of higher quality of foreign language teaching.


The general situation of small hydropower development in Hubei Province is described;the existing problems are analyzed and their countermeasures are discussed.


The utility model relates to a stamping die of a side slide block with an upward bending inner buckle. The stamping die includes an upper die and a lower die. An upper die spring is vertically disposed in the upper die and the bottom of the upper die spring is placed against an upper die push rod. A convex block with an inclined plane is connected onto the bottom of the upper die push rod. A slide block with an inclined plane matched to the convex block is connected into the upper die in a sliding manner. And a return spring is arranged on one end of the slide block with the inclined plane. A lower die spring is vertically disposed in the lower die and the bottom of the lower die spring is placed against a lower die push rod. A material pressing block is connected onto the top of the lower die push rod and the material pressing block is disposed at a location opposite to the convex block with the inclined plane. A bending protruding die is arranged on the side surface of the material pressing block. And the elastic force of the upper die spring is smaller than the elastic force of the lower die spring. The stamping die in the utility model has advantages of well-arranged structure, reasonable design, low cost, strong stability and the like. And the stamping die does not need to be adjusted and repaired frequently.


Background: Chronic cyclic pelvic pain is cyclic pain located in the pelvis and the lower abdominal area, persisting for 6 months or more with no obvious pathological cause for their pain and severe enough to interfere with daily activities. Objective: This study was conducted to compare the effect of aerobic exercise versus the effect of muscle energy technique on chronic cyclic pelvic pain. Patients and Methods: 30 women complaining of increased pelvic pain of unknown cause lasts more than 6 months diagnosed and referred by their gynecologist. They were divided into two equal groups, Group (A) received muscle energy technique; and Group (B) received aerobic exercise. Both groups were assessed before and after the treatment period (8 weeks) for pain degree by visual analog scale (VAS) and assessment of premenstrual, menstrual, and intermenstrual symptoms by menstrual distress questionnaire scale (MDQ). Results: The results of this study revealed that there was a significant decrease in VAS and MDQ values posttreatment in both groups (A and B) compared with that pretreatment values, when comparing both groups there was a more significant decrease in the post-treatment values of VAS and MDQ of the group (A) compared with that of the group (B). Conclusion: It can be concluded that both muscle energy technique and aerobic exercise will improve chronic cyclic pelvic pain but muscle energy technique resulted in better improvement as compared to aerobic exercise on chronic cyclic pelvic pain.


The symmetric properties of some new 2,2′-diindolylmethanes with chiral centers in the sidechains were investigated on the NMR time scale. Shift experiments of the chiral 2,2′-diindolylmethanediesters 1a in the presence of 3,3,3-trifluor-2-methoxy-2-phenylpropanoic acid were discussed.


The dynamic yielding and fracture (spalling) of commercially pure (grade 4) titanium are investigated using symmetric plate impact experiments for a peak stress range of 5.6 GPa–12.5 GPa. Velocity interferometry system for any reflector rear free surface velocity profiles display both a Hugoniot elastic limit (HEL) and a velocity pullback, which are indicative of dynamic compressive yielding and tensile fracture (spalling), respectively. The HEL decreases with peak stress from 2.2 GPa for 5.6 GPa peak stress to 2.0 GPa for 12.5 GPa peak stress. The decrease in the HEL corresponded to an increase in twinning observed in recovered samples. The spall strength increases with peak stress from 3.3 GPa to 3.8 GPa over the measured peak stress range and shows a good power law fit with the decompression strain rate. The differences in the dynamic yield and fracture behavior indicate that void nucleation is the dominant mechanism affecting the spall strength of grade 4 titanium.


To explore the clinical effect of hysteroscopic endometrial polypectomy and hysteroscopic endometrialpolypectomy combined with curettage in the treatment of endometrial polyps. Methods: Taken from May 2017to July 2019, 86cases were selected, Each group is 43patients with factor endometrial polyps over 35 years oldwho had no fertility requirements. The control group was treated with hysteroscopic endometrial polypectomy,and the observation group was treated with hysteroscopic endometrial polypectomy combined with curettage.The operation time, intraoperative bleeding, hospital stay, menstrual improvement and postoperative recurrencerate were compared between the two groups. There was no significant difference in the operation time, averageblood loss during operation, and average hospitalization recurrence rate between the two groups of patients (P<0.05). The menstrual improvement of the observation group after treatment was significantly better than that ofthe control group (P <0.05). Compared with the control group of hysteroscopic endometrial polypectomy alone,hysteroscopic endometrial polypectomy combined with curettage has a better clinical effect, the patient'smenstrual period is significantly improved, and it is worth popularizing in the clinic.


Objective To investigate the periodontal remodeling during orthodontic tooth movement in rats with diabetes mellitus.Methods Eighty male Sprague-Dawley rats were used. Mesial force was applied to the maxillary first molar. Forty animals were rendered diabetic by injection of streptozotocin. The remaining 40 animals were only injected with citrate buffer. In 3 weeks after the injection, rats were subjected to mesial tooth movement. The animals were sacrificed after 0, 3, 7, 14 and 21 days, respectively. Orthodontic tooth movement and histologic changes were observed.Results Compared with the control group, the tooth of the rat with diabetes mellitus moved significantly on 21st day (P0.05). After the start of tooth movement, bone histomorphometry demonstrated that diabetes mellitus and osteoporosis were present. Diabetes mellitus decreased the number of osteoclasts (except 21 days) and osteoblasts in the alveolar bone (except 7 days) significantly (P0.05).Conclusion These findings indicated that diabetes mellitus caused rapid orthodontic tooth movement. The acceleration of tooth movement could be due to osteoporosis. Bone resorption and formation were both inhibited in rats with diabetes mellitus during orthodontic tooth movement.


This paper deals with the development of circularly polarized sequential phase array antenna fed using proximity coupling method. The proposed array antenna which designed to work at the L-band frequency is configured by 1×4 slotted and corner truncated square patches. The use of proximity coupling method as well as corner truncation is to achieve wide bandwidth response, while the slot over square patch is applied to produce circularly polarized waves. The array antenna is deployed on two layers of FR4 epoxy dielectric substrate with the dimension of 312mm (length) × 95mm (width) and the total thickness of 3.2mm. From the characterization results, it shows that the –10dB fractional impedance bandwidth of array antenna is 5.5% (1.212GHz–1.28GHz) with the 3dB axial-ratio bandwidth of 54MHz (1.222GHz–1.276GHz).


Titanium is characterised by an outstanding combination of properties like high strength, low density, good corrosion resistance and biocompatibility. Nonetheless, widespread employment of titanium at the industrial level, especially in the automotive industry, has not been achieved yet because of its high extraction and production costs. Consequently, titanium finds applications mainly in high demanding sectors, such as the aerospace industry or to produce biomedical devices, where the final high cost is not the principal issue. The processing of titanium and its alloys by means of powder metallurgy (PM) techniques is claimed to be a suitable way to reduce the fabrication cost of titanium products as well as offering the possibility to design new alloys which are difficult to obtain using the conventional metallurgical route, for example due to segregation of heavy alloying elements. This work deals with the processing of hydride-dehydride elemental titanium powder by means of different PM methods and aims at investigating the processing of near net-shape, chemically-homogeneous and fine-grained titanium-based components. In particular, properties achievable (i.e. relative density, microstructure and mechanical properties) and problems related to the processing of elemental titanium, by both the conventional PM route of pressing and sintering and the advanced PM method of hot-pressing, are presented.


This paper reviews a topic of collaboration between the present author and professor F. Olyslager1 of the 1990's concerning the generalization of classes of electromagnetic media in which fields can be naturally decomposed in two noninteracting components. As a continuation to this research it is shown that the medium classes, originally defined in terms of three-dimensional Gibbsian dyadic algebra, can be introduced in a compact manner by applying four-dimensional multivector dyadic formalism. It is also shown that these classes are closed in the affine transformation.


by Alain Blum* Harvey Goldstein** France Guérin-Pace* Summary The International Adult Literacy Survey raises a number of important issues which are inherent in all attempts to make comparisons of cognitive and behavioural attributes across countries. This paper discusses both the statistical and interpretational problems. A detailed analysis of the survey instruments is carried out to demonstrate the cultural specificity involved. The data modelling techniques used in IALS are critiqued and alternative analyses performed. The paper argues for extreme caution in interpreting results in the light of the weaknesses of the survey.


Validation of the ASCAT wind vectors show that the ASCAT wind speed errors are within 2 m/s RMS error for wind speeds up to 15 m/s, however they exhibit and increasing low bias beyond 15 m/s. An examination of the ASCAT σ0 revealed some additional sensitivity at the higher wind speeds that was not adequately represented by the current geophysical model function (GMF). A revised GMF is empirically derived using a near-real-time QuikSCAT as a surface truth. A new DC term in the GMF is derived and replaced in the operational CMOD5.5 GMF. Validation of the revised GMF shows that the wind speed retrievals are closer to QuikSCAT for wind speeds > 15 m/s than the operational retrievals, while wind direction retrievals remain the same for all wind speeds as expected.


'Tis as piffle before the wind to identify the scientific paper most frequently cited.1 , 2 Private delight is knowing the one by that elusive Student so commonly used it is rarely cited.3 Better s...


Four samples of sillimanite rocks of Chippilangso, Karbi Anglong, selected on the basis of their colours, were investigated by X-ray powder diffraction and IR absorption spectra. A variety of sillimanite was found in the pink (PV) as well as in the silky white (QS) coloured rocks, while another variety of the same mineral was found in the white coloured massive rock (MS). Besides these, α-quartz and kaolinite were found to be the other major constituents of the rocks. Also, the rocks were found to contain muscovite, magnetite, and hematite as minor constituents. The yellow coloured rocks (WV) were found to consist of only α-quartz. Unit cell dimensions and densities of the sillimanite form, occurring in MS, are: a1 = 7.459 A, b1 = 7.649 A, c1 = 5.739 A, α1 = β1 = γ1 = 90°, Dm = 3.25 gm.cm−3, Dx = 3.27 gm.cm−3, and of the sillimanite, occurring in PV and QS rocks, are: a2 = 7.445 A, b2 = 7.636 A, c2 = 5.762 A, α2 = beta;2 = γ2 = 90°, Dm = 3·26 gm.cm−3, Dx = 3.28 gm.cm−3.Both the varieties of the sillimanit...


Dissertation Abstract Building upon renewed interest in mathematics education in the epistemology of mathematics, this study investigated college students' attempts to reason mathematically. The students in the study had not received prior training in proof writing and making. The central research question was: What are the students' modes of reasoning and how do the observed modes relate to the rules of mathematical discourse? To this end, I examined students exploring calculus problems in which they posed conjectures, communicated their insights, and ascertained the truthfulness of their claims with different degrees of confidence. The study was a naturalistic teaching experiment in which cognitive, metacognitive, and social aspects of students' proofs were examined. There were eight key participants: four undergraduate calculus students enrolled in a Calculus II course, two recent high school graduates who had completed an Advanced Placement calculus course, and two graduate mathematics education students who had recently completed their undergraduate work. The data were mainly collected through problem-solving interviews with the key participants. To establish a context of the research setting, classroom observations and informal interviews were also conducted. Through the constant comparison method, the categories and their properties were inductively developed from the data to generate a grounded theory of students' ways of knowing within mathematics. The findings revealed that the students used plausible reasoning as a means of inference making. Their inferences, although not formally represented, could sometimes be extended to more formal contexts. Often, however, the students' attempts to operate within the constraints of mathematical discourse were immature and futile. The main sources of students' difficulties were: (a) lacking oral, aural, and written fluency in mathematics, (b) avoiding mathematical


【Personality characteristics of TMD patients was studied through the SCL-90-R. III patients were subjected at the Orofacial Pain Clinic, Dept. of Oral Medicine, PNUH, from 1991 to 1996. All the TMD patients were divided and analyzied comparatively by the ways of duration of present illness, severity of symptoms, associated symptoms, traumatic contributing factor, history of treatment, treatment modality, response to therapy and treatment outcomes. The obtained results were as follows; 1. Mean value of T-scores on 9 basic scales in all the groups was within normal range. 2. There showed higher levels of T-scores in the chronic group, the unimproved group and the discontinued group. 3. T-scores in the patients with severe symptom, associated symptoms, and history of treatment revealed higher.】


The critical dynamics of the q-state Potts model at the percolation threshold is studied using some of the techniques that have been applied recently to diluted Ising systems. Various formulations of single-spin-flip dynamics are considered and shown to lead to a breakdown of conventional dynamic scaling. Furthermore, the predictions are checked by performing Monte Carlo simulations of the two-dimensional three-state Potts model at the bond percolation threshold.


The effects of proportional and non-proportional overloading on modeⅠ fatigue crack growth have been studied, and the influences of crack tip plasticzone, crack tip blunting as well as crack closure were discussed. The proportional(mode Ⅰ) overloading may cause more serious crack growth retardation than non-proportional (mixed mode) overloading. Therefore, for estimating fatigue life ofengineering structures to simplify a real overload which may often be non-propor-tional as a proportional one is not always safe.


The foundations of windmills act as secondary artificial reefs, attracting different kind of fish species. This monitoring aims to determine attraction and/or net production of the ichthyofauna on the artificial hard substrates of the wind turbines placed at the Thorntonbank. By answering specific research questions and integrating the results, the principal question " Do the secondary artificial reefs only attract fishes or do they produce them? " can be tackled. A wide fan of technologies will be used in this research. The ichthyofauna associated with the artificial reefs will be quantified using visual and destructive methods, for instance visual census with scuba divers, ROV underwater camera, hook and lines, gill nets and trammel nets. The functional relations between the ichthyofauna and the reef habitat have their influence on growth patterns and productivity. By integrating the techniques and linking the results it will be possible to (partly) unravel and visualize the attraction/production at the artificial reefs in the BPNS.


It is shown that the removal of the 'spherical approximation' from the Atomic Hartree-Fock equations generates a set of atomic orbitals which are not always eigenfunctions of L 2. In particular, the s-type and d-type orbitals 'mix'. The result of this mixing is to generate a set of 'valence' orbitals for these atoms which solves the old problem of why, if the 3d lies below the 4s, does the 3d not always fill up first.


In mouse ventricular myocardium, we have found unusual fibroblasts whose cellular processes in some regions are particularly flattened and which contain linearly‐arranged, electron‐opaque structures ("central laminae"). The morphology of these focal laminate segments of fibroblast processes suggests that the intracellular laminae are adhesive entitieswhich hold the plasmalemmata above and below them in close parallel apposition for short distances.


Based on characteristics of the macroblock mode in SVC spatial enhancement layer,a new algorithm is proposed.The algorithm synthetically utilizes the inter-layer prediction information and motion information of temporal direct mode to select the macroblocks that use temporal direct prediction mode to encode motion information.And the macroblocks according with the conditions recovers the motion vectors with temporal direct mode.Simulation result indicates that the proposed algorithm can increase the PSNR by 0.23 dB of enhancement layer,with slightly increasing of the computational complexity.


Advancements in power electronics, bearings and materials have made flywheel energy storage systems a viable alternative to electrochemical batteries. A future application of such a device is as an uninterruptible power supply for critical loads on a distribution feeder. However, the same power electronics and flywheel system could also be used for dynamic voltage compensation. A comparison is made between series and parallel connection of such dynamic compensation techniques used to maintain rated load voltage on distribution feeders when there are momentary dips in the supply voltage. For each case a mathematical model is presented and analyzed. The two cases are compared and the series compensation technique is more effective.


Despite decades of research to define optimal chamber design and deployment protocol for measuring gas exchange between the Earth's surface and the atmosphere, controversy still surrounds the procedures for applying this method. Using a numerical simulation model we demonstrated that (i) all non‐steady‐state chambers should include a properly sized and properly located vent tube; (ii) even seemingly trivial leakiness of the seals between elements of a multiple‐component chamber results in significant risk of measurement error; (iii) a leaking seal is a poor substitute for a properly designed vent tube, because the shorter path length through the seal supports much greater diffusive gas loss per unit of conductance to mass flow; (iv) the depth to which chamber walls must be inserted to minimize gas loss by lateral diffusion is smaller than is customary in fine‐textured, wet or compact soil, but much larger than is customary in highly porous soils, and (v) repetitive sampling at the same location is not a major source of error when using non‐steady‐state chambers. Finally, we discuss problems associated with computing the flux of a gas from the non‐linear increase in its concentration in the headspace of a non‐steady‐state chamber.


The study aimed to identify the transformational leadership role of private school principals in New Cairo in achieving organizational commitment and environmental citizenship among teachers, The study relied on the descriptive approach, A questionnaire was developed for data collection purposes, The researcher distributed 400 questionnaires, (346) were retrieved, with a rate of (86.5%).
The results of the study showed that the perceived value of teachers for the independent variable (transformational leadership) was relatively moderate, Where the best was the dimension (inspirational stimulus) and the lowest was the dimension (idealistic or charismatic effect), As for the reality of organizational commitment, the results showed that the level of achieving them was moderate, Where the best of them was the dimension (emotional commitment) and the lowest was the dimension of (continuous commitment), There is also a positive and medium significant association between transformational leadership and organizational commitment, And that what you assessed (36.8%) of the changes in the first dependent variable (organizational commitment) resulted from changes in the independent variable (transformational leadership), With regard to the realities of environmental citizenship, the results showed that the level of their achievement was moderate, with the best being the dimension of (environmental responsibility) and the lowest being the dimension of (environmental justice), The study also showed the existence of a moderate positive correlation relationship with statistical significance at the level of (0.005) between transformational leadership and enhancing environmental citizenship for teachers, And that (26.9%) of the changes in the second dependent variable (environmental citizenship) are the result of changes in the independent variable (transformational leadership).
The study recommended that the characteristics of transformational leadership be included in the criteria for selecting educational leaders, And the provision of technical and administrative staff in each school in order to reduce the burden of school work on teachers, Continuing education and knowledge increase regarding the importance of preserving the environment.


Quilts was a ground breaking film used by folklorists, anthropologists and historians of art and womens history that presented the lives, art, work and philosophy of ordinary women in the days when few documentaries came from women filmmakers. This deceptively simple film won most of the major awards for independent films during the years after its release in 1981, including Emily Grand Prize, American Film Festival; 1st Place Fine Arts, San Francisco International Film Festival; Best of Festival, National Educational Film and Video Festival, New York International Film Festival, Margaret Mead Film Festival.


It is customary for the students of the Darul Ulum Banyuanyar Islamic Boarding School to read the poetry of Zakiaria Al-Ansori after the fardu prayer. The verse is read repeatedly by the students. This is interesting for research to examine how students respond when reading these poems. Of course the poems that are recited have an impact on the santri themselves in the form of peace of mind, sharing, and blessings. To produce data, researchers used observation techniques, interviews and documentation. The results of this research show that some of the respondents when reading the poem did not make an impression and only as ordinary reading, of course, due to ignorance of the poem. So by knowing the meaning, the respondent will be able to absorb the poetry reading which is done after the five daily prayers. This research is a field research with a reception aesthetic approach.


Data science is a burgeoning field. As a result of recent technological advances, widespread and accelerated uptake of these technologies by many sectors, and increasing workforce demands, many data science initiatives across universities and colleges in the US and beyond are sprouting up at a rapid pace. The Data Science Leadership Summit, hosted on March 26, 2018 by the Data Science Institute at Columbia University, was the first convening of leaders of these initiatives. The Summit was co-funded by the National Science Foundation, the Gordon and Betty Moore Foundation, and the Alfred P. Sloan Foundation.


To explore the wireless sensor network data exchange model, an addressing strategy is applied to the Internet of Things, and the real-time communication between the underlying wireless sensor network and the Internet based on the IEEE 802.15.4 protocol is realized. In addition, Hierarchical address auto configuration strategy is adopted. First of all, inside the bottom network, it allows nodes to use link local address derived by 16-bit short address for data packet transmission. Secondly, Sink node in each underlying network accesses to the global routing prefix through the upper IP router, and combined with interface identifier, it forms Sink node global address, and realizes wireless sensor network and Internet data exchange. The research results show that the strategy has certain superiority in network cost, throughput, energy consumption and other performances. In summary, the proposed addressing strategy has the characteristics of effectively integrating heterogeneous networks, reducing system energy consumption, increasing network throughput and ensuring real-time system performance for the future Internet of things.


We develop a master equation approach to study the backaction of quantum-point contact (QPC) on a double quantum dot (DQD) at zero bias voltage. We reveal why electrons can pass through the zero-bias DQD only when the bias voltage across the QPC exceeds a threshold value determined by the eigenstate energy difference in the DQD. This derived excitation condition agrees well with experiments on QPC-induced inelastic electron tunneling through a DQD [S. Gustavsson et al., Phys. Rev. Lett. 99, 206804 (2007)]. Moreover, we propose a scheme to generate a pure spin current by the QPC in the absence of a charge current.


After two months' time, the Chicago soda tax was repealed. Advocates of the bill emphasized the health advancement of the populace when less high sugar content beverages were consumed. Also, the means of fighting obesity with decreased sugar content beverages was claimed. Both claims seem to be accurate, progressive health promotion statements as well. However, the mandate and increased revenue costs to the consumer offset any sensible consideration of the action it seems. Protests abounded when the bill went into law and media spots for both sides of the argument increased. The process of making a health promotion into a law, having the price of popular beverages increased was too intense and unpopular it seemed. There are many other views both in support and against the repeal of the soda tax as well as understanding the political and social climate of voters. However, the lesson learned is valuable. The health promotion action needs to be more carefully presented and the options reasonable to obtain. These political phenomena amplified an older scenario in Public health—how to meet the challenges of patient adherence.


A cross-sectional study was conducted from November 2015 to April 2016 on male cattle slaughtered at Gondar ELFORA abattoir, Northern west Ethiopia, to examine the major gross lesion and its prevalence among different risk factors in lung and livers. The pulmonary hepatic lesions were diagnosed on the basis of pathological findings. During the post mortem examination, out of the total 740 male cattle destined for slaughter (648, 87.5%) of cases were found positive for different pathological lesions (lung and liver). Out of this (397, 53.6%) of lung and (251, 33.9%) of liver were found to have lesions. Among major gross pulmonary lesion encounterd in lung were Hydatidosis (50, 6.8%), emphysema (70, 9.5%), congestions (65, 8.8%), hemorrhage (47, 6.4%), Athelectasis (38, 5.1%), calcified nodules (50, 6.8%) and more than two lesions 48(6.5%). Among these lesions emphysema (70, 9.5%) and congestion (65, 8.8%) were the most frequently observed lesion and abscesses were the least frequently encountered lesion (29, 3.9%). This study also investigates the major gross hepatic lesion in the study area. Accordingly, Fasciolosis (90, 12.2%), Calcification, (69, 9.3%), Hydatidosis (24, 3.2%), Abscess (25, 3.4%) and two and above lesions (24, 3.2%) were the major hepatic lesion observed during the study. The statistical analysis showed that there was statistical significance (P<0.05) between the prevalence of pulmonary lesion among age and body conditions. The prevalence of hepatic lesion was also found to be significant with the origin and body condition of the study animals (P<0.05). The results of this study showed that pulmonary emphysema and hepatic fasciolosis were more pronounced recorded lesion in lung and liver respectively. Therefore, better livestock management system, good meat inspection and creating awareness on butchers and cattle trader should go in a long way to reduce the problem in the abattoir.


his paper presents an exclusive design of EMI-RFI suppressor for Modified Half Bridge inverter based induction heating equipment. With the growing use of high frequency inverter in induction heating equipment, the problem of injected harmonics to the input side becomes critical. A low pass a filter is incorporated between the inverter and the power supply network for reduction of this harmonics. The design of low pass filter is according to the harmonics standards that determine the level of current harmonics injected into the supply side. To reduce the radiated and conducted interference from electronic equipment to sensible level a low pass filter is employed. The input filter of the switching power supply is matched with the power supply when associated with passive loads. The characteristics and suppression may significantly change when used to power active high frequency electronic circuits. Some methods are suggested by the authors to reduce the interference problem for the application in a power supply system of high frequency Modified Half Bridge inverter fitted induction heating equipment. A simulated analytical comparison of Total Harmonic Distortion has been made between two induction heating equipment's including and excluding the EMI and RFI suppressor.


Forty nine (49) Bambara groundnut genotypes derived from single plant selection of diverse origin were evaluated for yield and yield components using 26 yield and yield related traits. Highly significant (P<0.001) differences were detected among the genotypes for canopy spread, petiole length, weight of biomass, seed weight and seed height, while seedling emergence, pod weight, seed length and seed width were significantly different (P<0.05). Principal component analysis identified nine influential components whereby PC1 and PC2highly contributed to the total variation at 19% and 14%, respectively. Leaf colour at emergence, petiole colour, leaf joint pigmentation and calyx colour were highly correlated with PC1, while seed length, seed width and seed height had strong association with PC2. Both the principal component and cluster analyses displayed common association among most of the genotypes for agronomic and seed yield traits. Genotypes that showed high seed yield performance and greater biomass production can be tested for large-scale production, breeding or germplasm conservation.


The aim of courses conducted by centers for educational development is to enhance and sustain quality in teaching and learning in higher education. Research suggests that taking a scholarly approach to teaching and learning results in higher quality teaching, which, in turn, promotes student learning (Trigwell & Shale, 2004). Moreover, a scholarly approach to teaching and learning helps sustain change processes on institutional levels (Martensson et al, 2011). One way of bringing about and supporting sustainable educational change is to introduce the notion of Scholarship of Teaching and Learning from an early stage (Kreber, 2000). Our perspective is that teacher training courses do not only address the individual's knowledge and development but can also potentially affect institutional levels if the individual is encouraged to share knowledge with others. One way of motivating teachers to look beyond their immediate practice is to encourage them to raise concrete concerns within their own teaching situations. These concerns are communicated and discussed with the other participants at the start of an introductory course in Teaching and Learning. Additionally, we introduce the task of writing a project report which requires participants to reflect on the relation between theory and practice in the analysis of a pedagogical issue related to their own teaching practices. Through collected material and analysis of project reports, our study shows the various directions educational development takes from the early stages of discussing pedagogical concerns to the later stages of project writing, when SoTL has been introduced. (Less)


Researchers conducted focus groups to investigate how and why Canadians engaged in different food handling and hygiene behaviours during the COVID-19 pandemic.


Knowledge diffusion takes place over network structures and is also a mechanism of network creation. The use of network analysis techniques and of the ideas coming from recent developments of the theory of complex networks may be of utility to study knowledge diffusion processes among organizational populations. In this work, the network approach is used to analyze the results obtained by an agent-based model used to simulate two cases of high-tech geographical industrial clusters: Silicon Valley and Boston's Route 128. The results obtained point to interesting ideas for the improvement of the simulation model and for possible empirical research.


Considering the effects of concrete crack,reinforcement yielding and hysteresis of structural components after adopting nonlinear plastic hinges,and using the language of APDL to write a bisection method program for automatic analysis and time reduction,a method of analyzing seismic resistance capacity of cable-stayed bridge was established,in which the seismic load is acted increasingly step by step.The seismic resistance capacity and responses of a composite girder cable-stayed bridge with three pylons under construction was investigated.The results show that the force responses at bottom of the middle pylon are much greater than at that of side pylons,but the deflection responses in the top of pylons caused by the seismic action are very close.So,increasing the capacity of the middle pylon to resist earthquake can improve the seismic resistance capacity of the whole bridge.The calculating seismic resistance capacity of the model with plastic hinges is higher than that with no plastic hinges.The bisection method program for loop calculation can reduce the trivial manual operation work and decrease the times of loop calculation.By using the method,it is convenient to analyze the seismic resistance capacity of large structures.


By way of applied current situations of electronic signing technique in information working domain over our country,based on integral framework of OA system for traffic trades,the paper dissects the necleus technical line of network electronic signning system.And in the light of development of radio communication technique and built-in technique,it poses extending the technical assuming of "Mobile Electronic Signning System"in traffic government affairs system as well.


Objective To investigate the determination of quercetin from Viscum ovalifolium DC..Methods Hypersil C18(5 μm,4.6 mm×250 mm) column was chosen as analytic column with mobile phase consisted of methanol-0.5% phosphoric acid(43∶57),the flow rate was 1.0 mL/min,the detection wavelength was set at 372 nm and the column temperature was at 30℃.Results The liner of quercetin was 0.06 to 1.32 μg.The average recovery was 98.89% with RSD = 2.66%(n = 6).The content of quercetin from Viscum ovalifolium DC.was 0.28 mg/g.Conclusion This method is high sensitivity,good reproducibility,and can be used for determination of quercetin from Viscum ovalifolium DC.and with reference value on the control of Viscum ovalifolium DC..


Gastric slow wave abnormalities have been associated with upper gastrointestinal motility disorders. Invasive studies in humans have described normal and abnormal propagation of the gastric slow wave, and recent non‐invasive studies have shown that multi‐electrode cutaneous measures of gastric slow wave function correlate with symptom severity in patients with gastroparesis and functional dyspepsia (Gharibans et al, Clinical Gastroenterology and Hepatology, 2019). Invasive Neurostimulation of gastric Vagal complexes are thought to result in satiety (Abiliti, Transcend), anti‐nausea (Entera) and general weight loss (vBLOC), but effects of invasive neuromodulation on gastric motility are not clear. Our group developed: 1) a wearable non‐invasive electrogastrography (EGG) device that reliably records gastric slow wave function and 2) a new non‐invasive targeted gastric Vagus nerve stimulation (ntG‐VNS) system. The challenge is to further develop a combined ntG‐VNS/EGG system that may be used as a tool to probe Gastric disease states, and eventually diagnose and or treat gastric motility disorders.


Fiber spinning has been widely used in reducing polarization mode dispersion of optical transmission fibers in the past decade. It also affects the polarization evolution in fibers, which has measurable effects. This paper reviews and reports the progress in understanding the properties of polarization evolution in spun fibers in both of the cases with and without the influence of external factors. Theoretical formalism is constructed and various properties of the polarization evolution are revealed through numerical modeling. Some aspects of the features have been experimentally explored.


─ A new tunable plasmonic filter based on liquid crystal dielectric loaded plasmonic waveguide is proposed and studied. The transmission spectrum can be controlled easily by applying a constant external electric field to the plasmonic filter. The physical principle of this phenomenon is evaluated from the phase of surface plasmon polaritons (SPPs) in the waveguide and the electro-optical effect of liquid crystals. Our numerical simulations with finitedifference time-domain (FDTD) technique reveal that a large tuning range of the transmission spectrum can be achieved. Both the electrical switching and optical properties of the proposed structure are investigated in the context of designing an optical switch. The special feature of the proposed structure gives it an opportunity to be used as an efficient element in ultrahigh nano-scale integrated photonic circuits for miniaturization and tuning purposes. Index Terms ─ FDTD, liquid crystal, surface plasmons polaritons.


Metal laminated composites based on ultrahigh carbon steel (UHCS) and aluminum bronze can be readily prepared by solid state bonding procedures at relatively low temperatures (670 to 700{degree}C). This is attributed to the fine grain size present in each component. No apparent interdiffusion occurs between the UHCS and aluminum bronze layers either during the solid state bonding steps or during superplastic flow below the transformation temperature of UHCS (770{degree}C). Interdiffusion does occur between the UHCS and aluminum bronze layers when the laminated composite is heated above 770{degree}C as a result of the dissolution of the iron carbides to form austenite. It is shown that a high strain-rate-sensitivity exponent (m = 0.5) can be achieved in the UHCS/bronze laminated composite at elevated temperatures (750 to 850{degree}C) and at low strain rates. High elongations are observed in the laminated composite under these conditions, with a maximum elongation of 650% noted at 750{degree}C. The UHCS/bronze laminated composite shows different mechanical characteristics from a UHCS/brass laminated composite. Brass readily cracks at elevated temperature and prevents the achievement of high elongations in a UHCS/brass composite even when the strain-rate-sensitivity is high. The aluminum bronze is fine-grained and does not form cracks during elevated temperature deformation.


One of the primary challenges in the development of the Advanced Receiver is the ability to accommodate a wide variety of possible data rates, motivated by the desire to support different missions for the Deep Space Network (DSN) under different adverse conditions. To conform to fixed architectures such as the analog-todigital converter (ADC) used at the front end and tracking loops used subsequently, this requires that the sampling rate be varied entirely digitally after the ADC to accommodate the fixed parameters of the tracking loops. In this article, we present a series of methods to achieve variable sample rate conversion (SRC). Specifically, we focus on two sets of schemes to alter the sampling rate: coarse techniques to lower the bulk of the sampling rate near the desired amount while removing out-ofband artifacts due to noise and interference, and fine techniques used to accurately tailor the sampling rate to the exact desired value. Advantages and disadvantages of both sets of methods are investigated in terms of implementation complexities and performance metrics.


To resolve the contradiction between existing watermarking methods—which are not compatible with the watermark's ability to resist geometric attacks—and robustness, a robust multi-watermarking algorithm suitable for medical images is proposed. First, the visual feature vector of the medical image was obtained by dual-tree complex wavelet transform and discrete cosine transform (DTCWT-DCT) to perform multi-watermark embedding and extraction. Then, the multi-watermark was preprocessed using the henon map chaotic encryption technology to strengthen the security of watermark information, and combined with the concept of zero watermark to make the watermark able to resist both conventional and geometric attacks. Experimental results show that the proposed algorithm can effectively extract watermark information; it implements zero watermarking and blind extraction. Compared with existing watermark technology, it has good performance in terms of its robustness and resistance to geometric attacks and conventional attacks, especially in geometric attacks.


During the Fall of 1980, 8 physicians served as team physicians at 31 junior and senior high interscholastic football games at 6 regional schools. We studied type of injuries in relation to positions played, level of play and playing conditions. At the 31 games, 38 injured players requested evaluation or were observed to require it by the physician. The great majority of the injuries were contusions, sprains, and strains, with the upper and lower extremities being injured more frequently than the head or trunk. Of the 38 injuries, only one was life threatening (a tension pneumothorax) and 7 others were considered serious or potentially serious on the field. These included concussion,dislocations, possible fracture, possible peripheral nerve injury, and internal derangement of the knee. A higher number of injuries occurred on rainy days and muddy fields compared to dry playing conditions. The data suggests that injuries were less frequent in freshman games compared to varsity level competition. On the field treatment was limited to resting the player, immobilization, and application of ice. Four players were removed to emergency rooms before the conclusion of the game. Physician response to this work was generally favorable, although opinions differed as to the need for an M.D. to be in attendance at these football games although State law mandates this. Our findings may help to define the medical needs of local and senior high football programs.


Fall accidents are a big problem in the construction industry today and stand forapproximately 23% of all accidents. Skanska is a construction company that has avision toachieve zero accidents. Eli ...


It is important to measure the operating voltage of a cell sealed in a photovoltaic module as well as well‐known faults such as abnormal hot spots observed by thermography or a dark part in electroluminescence distribution on the module for detecting a fault module. This paper proposes a method that radiating modulated light toward a cell and extracting the synchronized signal from the module output by phase detector can estimate the operating voltage quantitatively by using a standard line predicted by shading the module partially.


International donors recently began to provide free antiretroviral therapy (ART) for AIDS in parts of Sub-Saharan Africa to reduce the burden of the epidemic. This paper uses a difference-in-difference design based on the proximity of ART facilities and the timing of the rollout to show that ART availability improves mental health and increases labor supply, including among HIV-negative respondents and non-caretakers. Our results suggest that improved mental health contributes to the labor supply response. To explain this pattern, we show that ART availability reduces perceived mortality risk throughout the community. These findings suggest that the disease environment is a determinant of mental health and that the impact of HIV/AIDS and ART are broader than previously understood. We received helpful suggestions from Kerwin Charles, Andrew Dorward, Erica Field, Willa Friedman, Guther Fink, Kelsey Jack, Dean Karlan, Ofer Malamud, Sendhil Mullainathan, Emily Oster, Rebecca Thornton, Alessandra Voena, Nicholas Wilson, and seminar participants at the University of Chicago, the University of California San Diego, and the University of Illinois at Chicago. IRBs at the University of Pennsylvania and the National Health and Science Research Committee in Malawi have approved collection of the MLSFH. The authors gratefully acknowledge the generous support for this research through National Institute of Child Health and Development (grant numbers R03HD058976, R21HD050652, R01HD044228, R01HD053781), the National Institute on Aging (grant number P30 AG12836), the Boettner Center for Pensions and Retirement Security at the University of Pennsylvania, and the National Institute of Child Health and Development Population Research Infrastructure Program (grant number R24 HD-044964). Baranov: email@example.com; Bennett: firstname.lastname@example.com; Kohler: email@example.com.