An Implicit Model-Following Controller is developed in the modal domain to attenuate the vibration characteristics of helicopter rotors using adaptive structures. The dynamics of the blade in the hover condition is taken as the reference model. The results indicate that the linearization of the elastic system in forward flight is achieved with relatively low control costs.


The present invention provides a touch panel that not only demonstrates little deterioration of performance even in harsh environments at high temperature and high humidity, but is also free of the occurrence of a whitening phenomenon occurring during sudden changes in temperature and humidity, while also having superior shock resistance. Provided are a conductive laminate in which a uniform or arbitrarily patterned conductive layer containing a polythiophene-based conductive agent and an adhesive layer containing an acidic component are in direct contact over the entire surface or a portion thereof, and a touch panel in which it is used.


The channel to train talents of sports science is narrow in China.Leading scholars in sports science research are scarce.The achievement in sports research contributed little to economy.New approach to training senior sports science talents was brought forth.That is to extend the scope of training senior sports science talents to general higher learning institutions,especially,the key universities,as well as to the relative research institutes under Chinese Academy of Science and Chinese Academy of Social Science,for they have good conditions which should be made a full use of.


Abstract. To improve the lead time and accuracy of predictions of localized heavy rainfall, which can cause extensive damage in urban areas in Japan, we developed a mobile Raman lidar (RL) system for measuring the vertical distribution of the water vapor mixing ratio ( w ) in the lower troposphere. The RL was installed in a small trailer for easy deployment to the upwind side of potential rainfall areas to monitor the inflow of moist air before rainfall events. We describe the lidar system and present validation results obtained by comparing the RL-measured data with collocated radiosonde, Global Navigation Satellite System (GNSS), and high-resolution objective analysis data. The comparison results showed that RL-derived w agreed within 10 % with values obtained by radiosonde at altitude ranges between 0.14 and 1.5 km in the daytime and between 0.14 and 5–6 km at night in the absence of low clouds; the vertical resolution of the RL measurements was 75–150 m, their temporal resolution was less than 20 min, and the measurement uncertainty was less than 30 %. RL-derived precipitable water vapor values were similar to or slightly lower than those obtained by GNSS at night, when the maximum height of RL measurements exceeded 5 km. The RL-derived w values were at most 1 g/kg (25 %) larger than local analysis data. Four months of continuous operation of the RL system demonstrated its utility for monitoring water vapor distributions for heavy rain forecasting.


In this paper, we aim to uncover the challenges faced by family caregivers caring for a depressed sufferer and consider ways to support their well-being with the use of technology. To understand the burden of caregivers and how they handle their stress, we conducted in-depth interviews with 15 individuals who have cared for a depressed family member. Through the interviews, we describe the multifaceted dilemma they faced. Based on our findings, we suggest design implications for technologies to improve the wellness of caregivers who are looking after depressed family members.


available from http://ieeexplore.ieee.org/search/srchabstract.jsp?tp=&arnumber=5669242&openedRefi nements%3D*%26filter%3DAND%28NOT%284283010803%29%29%26matchBoolean% 3Dtrue%26searchField%3DSearch+All%26queryText%3D%28Authors%3Afeitosa%29 Weighting Estimation for Texture Based Face Recognition via Fisher Discriminant Raul Queiroz Feitosa, Dário Augusto Borges Oliveira, Alvaro de Lima Veiga Filho Department of Electrical Engineering Pontifical Catholic University of Rio de Janeiro Rio de Janeiro, Brazil email@example.com, email@example.com , firstname.lastname@example.com Raphael Pithan Brito, José Luiz Buonomo de Pinho, Antonio Carlos Censi Montreal Informática Rio de Janeiro, Brazil email@example.com , firstname.lastname@example.com , email@example.com Abstract – Texture based automatic face recognition (AFR) methods proposed in the last few years have been successful in large-scale applications where the database consists of a single frontal view per person. In those methods the global similarity between two faces is generally given by a linear combination of the local similarities computed upon each face region. Little attention has been given so far to the estimation of the weights that express the relative contribution of each face region to global similarity score. This paper addresses this issue and proposes a method to estimate the optimum weighting for texture based AFR. The solution is given by the most discriminative axis within a similarity space using Fisher discriminant analysis. The proposed method is evaluated in experiments conducted on the FERET and on the FEI face databases. For texture coding both Local Binary Patterns (LBP) and Local Phase Quantization (LPQ) are considered. The experiments indicate that the proposed method brings a substantial improvement in terms of recognition performance in comparison to other weightings and weighting methods proposed in the literature. Texture based automatic face recognition (AFR) methods proposed in the last few years have been successful in large-scale applications where the database consists of a single frontal view per person. In those methods the global similarity between two faces is generally given by a linear combination of the local similarities computed upon each face region. Little attention has been given so far to the estimation of the weights that express the relative contribution of each face region to global similarity score. This paper addresses this issue and proposes a method to estimate the optimum weighting for texture based AFR. The solution is given by the most discriminative axis within a similarity space using Fisher discriminant analysis. The proposed method is evaluated in experiments conducted on the FERET and on the FEI face databases. For texture coding both Local Binary Patterns (LBP) and Local Phase Quantization (LPQ) are considered. The experiments indicate that the proposed method brings a substantial improvement in terms of recognition performance in comparison to other weightings and weighting methods proposed in the literature.


In this paper, we consider the observer design for linear systems with output delay. By regarding the time-delay as the dynamics dominated by a transport equation, the observation system with output delay turns out to be a cascade system. In this way, the method of dynamical compensation that was developed in [1] can be used for the observer design. Comparing with the existing method of PDE backstepping, the target system is not required in our observer design. Moreover, the construction of Lyapunov function can be avoided in the proof of the well-posedness of the observer. Some simulations are given to validate the theoretical results.


Background: The combustion of municipal solid waste (MSW) to generate heat or electricity (waste-to-energy [WTE]) could reduce net GHG emissions in the USA compared with combusting methane from landfills. Moreover, negative CO2 emissions could be achieved with CCS because 66% of the carbon in MSW is typically biogenic. Results and conclusion: For the five largest landfill sites in each state, we estimate that at least 58 and 11 sites have enough MSW to fuel WTE plants of >50 MWe and >100 MWe, respectively. Furthermore, half of these sites lie within 20 km of potential underground saline and other CO2 storage reservoirs. We estimate that the levelized electricity cost for WTE without CO2 capture is US$94/MWh and is $285/MWh with amine-based post-combustion capture technology. The cost of CO2 capture is $58/Mg CO2, resulting in a cost for carbon negative emissions of $93/Mg CO2; substantially lower than for some geoengineering methods, including capturing CO2 from air.


recovery. Both this manual and the New South Wales HEALTHPLAN2 have been revised for 1997. Disaster planning brings forth apathy, denial, squabbles about resources, turf battles and many committees representing various disciplines creating camels,* as well as serious professionals trying to plan for "What if ... ?". The Olympic Health and Medical Working Committee, with senior representatives from the Sydney Olympic Games Organising Committee, the NSWDepartment of Health and other agencies, is setting up the framework for events in 2000. There are several established principles in disaster planning: • In disasters, do the greatest good for the greatest number (a reversal of the usual clinical emphasis on quality of care for the individual). This explains why any disaster scene has to be declared safe by fire officers, why police are in charge overall, why systems are set up to evacuate "walking wounded" before attention is given to the mortally injured. • Both military and civilian experience has confirmed that in a disaster a rigid chain ofcommand is essential (doctors, with their individualistic training and professional independence, are poor at this), and that personnel should perform tasks similar to their normal duties (e.g., that surgeons should continue in surgery and not be called upon to organise transport) . • Overall service command must be led by a controller offsite. Each service must have liaison officers from all other major agencies involved. The biggest problem is always communication: this must be organised by those agencies with the relevant expertise and equipment. • Emergency physicians are the appropriate controllers of the medical response to a disaster: H. • • they are familiar with the system and personnel providing care before hospitalization; they are practiced in rapid assessment, basic treatment, and triage; and they have a good working rapport with other specialists needed during the response?" As Waeckerle states in an article on disaster planning, it is too late to plan a response once a disaster occurs." Disaster response will always be a team collaborative effort which must be planned and practised. As everybody's time and resources are short, we have to use tabletop exercises, mass gatherings and even expensive exercises with moulaged victims to practise to get it right well before 2000.


Problem of 2-D ultrasound diffraction tomography based on precise field description in the loss- less circumstance is studied. For the inverse problem,the moment method is adopted to discretize the ac- oustic wave equations, and then the contrast function is reconstructed by using DBI and BI algorithm respectively.The regularization method for scattering equation seriously, which is ill-posed, affects the per- formance of reconstruction. Based on the L-curve,a novel method for regularization parameter determin- ation is proposed by comprehensively considering the variations in norm and residual error of solutions. To get the optimal regularization parameter,a fast search applying adaptive search range according to ill- posedness works during iterative process.


Submitted for the MAR07 Meeting of The American Physical Society Synthesis and Optical Properties of Boron Nitride Nanotubes, Nanowires and Nanorods YING CHEN, HUA CHEN, JUN YU, HONGZHOU ZHANG, Research School of Physical Sciences and Engineering, The Australian National University, Canberra, Australia — Quasi-one-dimensional boron nitride nanomaterials such as BN nanotubes, BN nanowires, BN nanorods, and BN whiskers have different nanostructures but uniform electronic band gaps independent of their diameters and chiralities. Their quantum confinement effects in these low dimensional materials can enhance their optical emission substantially by inducing an indirect-to-direct conversion of the optical transition. Different nanostructures and dimensions have different emission behaviors. Therefore, one-dimensional BN nanomaterials are likely to find further applications in optoelectronics. We have achieved controlled and patterned growth of the BN nanotubes [1,2], BN nanowires [3,4] and conical boron nitride nanorods [5, 6] and investigated their optical properties including photoluminescence, cathodoluminescence and Raman spectroscopy. Relationships between the different nanostructures and corresponding properties will be discussed. [1] J. Yu, Y. Chen, et al., Chemistry of Materials, 17 (2005) 5172. [2] H. Chen, Y. Chen, et al. Chemical Physics Letters 42(2006) 315. [3] YJ Chen, H. Zhang, Y. Chen, Nanotechnology, 17 (2006) 786. [4] YJ Chen, et al., Nanotechnology, 17 (2006) 2942 [5] H. Zhang, et al., Physical Review B, 74 (2006) 045407 [6] H. Zhang, et al., Applied Physics letters, 88 (2006)093117. Ying Chen Research School of Physical Sciences and Engineering The Australian National University Date submitted: 15 Nov 2006 Electronic form version 1.4


Peculiarities of the human maxillary sinus structure and maxilla's dental process are considered: in particular, variants of forms and degree of pneumatization of maxillary sinus, its correlation with teeth apex for dental process: its thickness, height and the type of bone structure. Local and individual peculiarities of these structures are very important in dental implantation.


Yan Junyan's 顏俊彥 Mengshui zhai cundu 盟水齋存牘 is one of the most widely circulated and discussed judicial casebooks from the late Ming. By consulting newly available materials as well as by revisiting internal evidence from his casebook, this paper corrects some widely accepted misunderstandings about Yan Junyan's life. For instance, Yan's judicial career in Guangdong lasted from 1628 to 1633, and did not cease in 1630 with dismissal from office as suggested by almost all modern scholars. The second installment of the Mengshui zhai cundu comprises his cases from 1631 to 1633, the second term of Yan's service as prefectural judge of Guangzhou. On top of that, all the undated and questionable prefaces of the Mengshui zhai cundu are dated and verified. It is especially worth noting that the foreword by Li Yue 李樂 was originally addressed to a work by Yan Junyan's father, but was borrowed for the second impression of the Mengshui zhai cundu, probably printed in late 1644 or 1645, to aid the circulation of his son's casebook. The example of the Mengshui zhai cundu reflects the fact that frontline officials in the late Ming considered publishing and circulating their own enlightenedjudicial judgments in targeted circles or regions to be one of the keys to securing advancement in their careers.


In this paper, environmental productivity variation is analysed through the pollution-adjusted Malmquist and Hicks-Moorsteen productivity indices. These productivity indices are defined as combination of multiplicative pollution-adjusted distance functions. Non convex pollution-generating technology is assumed to estimate the pollution-adjusted Malmquist and Hicks-Moorsteen productivity measures. The main sources of the pollution-adjusted productivity change are displayed. An empirical illustration is provided by considering a sample of 20 Ecuadorian oil companies over the period 2012-2018. The results are estimated through a non parametric analytic framework.


This article uses the recent and seemingly local NCATE decision to drop the terminology of "social justice" from its examples of dispositions in teacher education to make a larger and more global argument: that the multicultural foundations field (educational foundations, educational studies, and multicultural education) has become fundamentally marginalized in its ability to impact educational policymaking. This article first traces the political context of NCATE's decision to drop the disposition of social justice. It then provides three distinct empirical data sets at three evermore finely grained units of analysis—a nationallevel analysis of influence, a statelevel analysis of coursework requirements, and a classroomlevel analysis of syllabus construction—that demonstrate such marginalization. The article concludes that multicultural foundations has abdicated its responsibility to future teachers, schools of education, and the public at large by removing itself (and being removed) from the paramount discussions and debates of the role of schools in a democratic and pluralistic society committed to equity and equality for all students. NCATE's decision is thus not only a single, but actually singular, example of multicultural foundation's current inability to, in Maxine Greene's (1976) terminology, challenge mystification in "dark times."


Successful procurement requires careful structuring and objective execution. During the past ten years many changes have taken place in methods used to purchase rolling stock, including transit buses. Up to the late 1970s sealed bid procurements were standard with low initial price governing the outcome. Operating and maintenance costs did not play a major role in decisions. Although relatively standard specifications existed for the New Look bus, each transit authority was free to specify features needed for its own operations. Specifications proliferated. In the late 1970s UMTA fostered the Advanced Design coach specification (White Book) and congress initiated actions that permitted consideration of life cycle costing. By the 1980s a number of transit authorities, dissatisfied with the new specification, sought means to obtain buses better suited to their individual needs. UMTA began to phase out the White Book, rescinding this requirement in 1982. Late in 1982 Congress mandated evaluation of performance, standardization and life cycle costs for all rolling stock. Today transit agencies are able to consider several procurement methods, each of which has its own strengths. These include: (1) Low-Bid Procurement; (2) Evaluated Bid Procurement; (3) Two-Step Procurement; and (4) competitive Negotiation. Details of each of these processes are given.


Since the implementation of the market economy, innovation and international integration, with the correct guidelines and policies of the Communist Party and the State, Vietnam has rapidly developed industrial parks, attracting a large number of foreign and domestic enterprises came to operate in industrial zones. Having a large number of employees, enterprises operating in industrial zones must pay attention to working conditions and other issues for workers. One of the most important issues of concern is the material and mental life of workers. A sufficient material life when ones' needs for food, accommodation, clothes, etc. are satisfied allows workers to survive and regenerate their energy for work. A healthy mental life ensures brings positive mood, motivation, attitude and effective working behaviors. Inadequate material and mental life reduces workers' productivity and thus influences firms' growth. Ensuring material and mental life for workers in industrial zones is a prerequisite in boosting productivity and achieving sustainable development. This study use survey and interview data to examine the quality of material and mental life of workers in industrial zones in Vietnam. Low income was the main hindrance to a sufficient material life and a rich mental life of workers. In addition, low quality of meal and working conditions had significant impacts to their health. The results were discussed in relation to previous studies on the life of workers in industrial parks.


The quantum energy-momentum tensor ${\hat T}^{\mu\nu}(x)$ is computed for strings in Minkowski space-time. We compute its expectation value for different physical string states both for open and closed bosonic strings. The states considered are described by normalizable wave-packets in the center of mass coordinates. We find in particular that ${\hat T}^{\mu\nu}(x)$ is {\bf finite} which could imply that the classical divergence that occurs in string theory as we approach the string position is removed at the quantum level as the string position is smeared out by quantum fluctuations. For massive string states the expectation value of ${\hat T}^{\mu\nu}(x)$ vanishes at leading order (genus zero). For massless string states it has a non-vanishing value which we explicitly compute and analyze for both spherically and cylindrically symmetric wave packets. The energy-momentum tensor components propagate outwards as a massless lump peaked at $ r = t $.


Distributed generation units (DGs), small generating units connected directly to the distribution networks are recently in growing attention as a solution to environmental and economical challenges caused by conventional power plants. In this study, a multi-objective framework is proposed for optimal placement and sizing of inverter based distributed generation units in meshed electric power system. The objective functions include maximizing the penetration level as well as minimizing power losses and total harmonic distortion subjected to various constraints such as power balance equations, bus voltage limits, individual harmonic distortion limit specified by IEEE-519 standard.. The DG penetration level could be limited by harmonic distortion because of the non linear current injected by inverter based DG units. This study is formulated as a nonlinear programming problem and tested on the IEEE-14 bus meshed distribution system with different DG scenarios. The problem is solved using particle swarm optimization algorithm due to its nonlinear and non convex nature. Simulation results show the effectiveness o the proposed approach. The best results have been obtained and is plotted and graphed. Keywords— Distributed generation, harmonic distortion, harmonic power flow, particle swarm optimization.


In order to trace the volatile load as quickly as possible,a control-oriented model which could represent the electrical characteristics of SOFC stack accurately was required.By analyzing the experimental data of the SOFC stack,an electrical coupling phenomenon was found.Based on this phenomenon,an electrical characteristics model of SOFC stack was developed,and then a modified genetic algorithm was used to identify the parameters of the model.The identification results show that the model represents the electrical characteristics of SOFC stack accurately,and demonstrates the model is reasonable.At the same time,the model lays a good foundation for precise control of the output power of the SOFC stack.


Background: To compare the RNFL measurements using the conventional Time Domain Optical Coherence Tomography (TD-OCT) 'Stratus' and
the Spectral Domain Optical Coherence Tomography (SD OCT) 'RTVue' in healthy participants and glaucoma patients. ThisMethods:
prospective cross-sectional study included 50 eyes in each of the two study groups as, healthy eyes and eyes of established glaucoma patients.
Peripapillary RNFL thickness was measured by both machines in random order by the same operator on the same day with pupils uniformly dilated
to over 5.0 mm. Three separate fast RNFL Scans were acquired with Stratus OCT, from which the most reliable scan was chosen for comparison.
For RTVue, "RNFL3.45" scan protocol was used, which consists of four sets of 1024 "A-scans" along a 3.45 mm-diameter circle centered on the
optic disc. There was a signicant difference in RNFL measurements between the two methods ,which was maximum in the superiorResults:
quadrant and minimum in the nasal quadrant in both the groups In both the groups, RTVue RNFL measurements are thicker as. Conclusion:
compared to that of Stratus with maximum quadrant mean RNFL measurement in the inferior quadrant and minimum in the nasal quadrant.
Maximum difference in RNFL measurement between the two machines was at superior quadrant in both the groups.


This paper introduces the wordspace package, which turns Gnu R into an interactive laboratory for research in distributional semantics. The package includes highly efficient implementations of a carefully chosen set of key functions, allowing it to scale up to real-life data sets.


This research examined an « integrative » approach to the processing of base-rate and individuating information in predictive judgments. We used the well-known « lawyers! engineers » task developped by Kahneman and Tversky (1973) whose « dualistic » approach induced data interpretation in terms of two mutually exclusive processes � i.e. taking into account either base-rate or individuating information. Ajzen (1977, study 2) suggested that whether or not base-rate information has causal relevance will determine the preferential use of base-rate or individuating information. We replicated this study and proposed an integrative processing of information. Our hypothesis was confirmed : both predictive estimations and judgments of importance of information revealed an adjustment reflecting combined use of both types of information. The generalization of our results is discussed.


The time evolution of ice sheets and ice shelves is modelled by combining a shallow lubrication approximation for shear deformation with the shallow shelf approximation for basal sliding, along with the mass conserva- tion principle. At each time step two p-Laplace problems and one transport problem are solved. Both p-Laplace problems are formulated as minimisation problems. They are approximated by a finite element truncated nonsmooth Newton multigrid method. As an illustration, we compute the steady state shape of an idealized ice sheet/shelf system.


Objective To analyze retrospectively the clinical characteristics, pathogeny and therapy of traumatic interhemispheric subdural hematoma (ISH). Methods 31 ISH cases admitted since 1996 were reviewed and analyzed retrospectively concerning the clinical characteristics and therapies. Typically, ISH manifested itself with hemiplegia or monoplegia in the contralateral lower limb, called the falx syndrome, and unconsciousness was infrequent at the initial stage of the head injury. The pathogeny of ISH involved cracks of the bridging vein, hematomas in the interhemispheric small arteries and veins and probably coagulation dysfunction or anticoagulant therapy. Results In all 31 patients, 29 were cured and 2 died of multisystem organ failure (MSOF) and cerebral hernia respectively. The follow-up revealed that 6 cured patients developed interhemispheric subdural effusion. Conclusion CT scanning showing the interhemispheric hematoma exceeds 20 mL, or the interhemispheric hematoma is thicker than 1 cm can be referential to the diagnosis of ISH. For the ISH treatment, surgery and conservative management are suggested based on the functional disturbance or the stability of the disease. Patients with progressive neurologic deterioration should be operated without delay.


The invention relates AL thioate S-6-chloro-2, 3-dihydro-2 IMALES polluting SALMON; TREATMENT PROCESS IS Decontamination SALMON AND REVIEW PREPARATION FOR TREATING USED Decontamination SALMON.


Wall‐slab‐wall buildings, in precast configuration or not, are relatively widespread in many European and non‐European countries, independently of the level and nature of seismic hazard to which the country is prone. Thus, this building archetype, featuring no columns or beams, but only slabs and walls, can be equally found both in areas characterized by potentially high‐damaging tectonic earthquakes and regions where small‐to‐medium‐size natural/anthropogenic seismic events would instead be expected.


The overlap syndrome in hepatology traditionally defined as the simultaneous presence in a patient of clinical or laboratory signs of two different autoimmune liver diseases. The most common combination is autoimmune hepatitis (AIH) and primary biliary cholangitis (PBC). In this case, a differential diagnosis based on clinical signs is often difficult. Routine laboratory tests indicate the presence of both parenchymal and cholestatic variants of liver damage. There are no international criteria that clearly define the case of overlap syndrome. There is a set of descriptive criteria presented by the International Group for the Study of Autoimmune Hepatitis (IAIHG), which includes not only biochemical and serological indicators, but also the histological examination of the liver. Usually, in the case of overlap syndrome, the course of the liver disease is more aggressive. For example, in case of combination of PBC and AIH, severe fibrosis is more frequent at the time of diagnosis, hepatocellular insufficiency develops faster and indications for liver transplantation appear earlier. The management of patients with overlap syndrome in each case is individual and focused on the prevailing component: autoimmune hepatitis or primary biliary cholangitis. The feasibility of combined immunosuppressive therapy and ursodeoxycholic acid (UDCA) has not been completely clarified. Moreover, this applies both to individual publications and to the consensus documents of the International Group for the Study of Autoimmune Hepatitis. In the absence of a sustained response in the case of a combination therapy, tactics may be revised in favor of monotherapy with UDCA, given the high percentage of complications with continued treatment with immunosuppressants.


An experiment was conducted in farmer's field with the aim to evaluate the effect of integrated use of bioslurry and inorganic fertilizer on the agroeconomic performance of transplanted aus rice (t. aus) (cv. BRRIdhan42) in AEZ 20. The trial was laid out in a randomized complete block design with three replications. There were three treatments viz ., T 1 : soil test based inorganic fertilizer dose for high yield goal (HYG), T 2 : cowdung (CD) slurry @ 5 t ha -1 with integrated plant nutrition system (IPNS) basis inorganic fertilizer dose for HYG and T 3 : Farmer's practice (average of 20 farmers fertilizer dose). The highest mean grain yield (3.93 t ha -1 ) of t. aus rice was obtained from the treatment T 2 followed by T 1 (3.46 t ha -1 ). Gross return, gross margin and benefit cost ratio were also observed higher in T 2 . Therefore, fertilizer package NPKSZn @ 56-4-20-9-1 kg ha -1 + cow dung slurry @ 5 t ha -1 in IPNS approach might be helpful for getting higher grain yield of t. aus rice and maintaining sustainable soil health as well. Bangladesh J. Agril. Res. 42(3): 467-474, September 2017


This month I will take a detour from the clinical aspects of pain and symptom management and look at what the internet can offer busy people who produce written materials to aid patient understanding. Those who have attempted to write patient information should recognize that this is far from an easy task. Unfortunately not all of us realize that what we produce cannot always be understood by patients and carers. Consequently those we seek to inform may remain ignorant, worried, frightened and confused rather than informed and content. The following websites will help you to produce readable informative material.


The dynamic model, ofa constant pressurewater re- servoir system is obtained. A design procedure, combining the classical compensatingnetworks andparameter optimization tech- niques is presented. A performance characteristic constraint on theovershoot andsettling timeofthereservoir's height isassumed whichimplies theneed ofaleadcompensator. Thelead compensa- tor's pole positionisobtained byminimizing an integral squareerror costfunction. Therepeated-operation modeoftheanalog computer is usedinan automatic parameter sweep methodtofind theoptimum leadcompensating network.Theresults obtained givethedesired variation ofthereservoir's height whichisproportional tothepres- sure.


In view of the fact that cityscape planning is difficult to be implemented, this paper tries to stabilize the disordered urban space in an orderly "cityscape control unit" through the method of full coverage of cityscape control. First, applying the concept of "gene" in molecular biology, the paper identifies the effective "cityscape gene." Then, the "cityscape gene order" in each unit is defined by using statistical analysis method, which is in correspondent to a certain "cityscape gene property." Finally, through different characteristics of each cityscape gene properties, difference cityscape control guidelines can be compiled, so as to realize an overall management of the cityscape construction.


The new working conditions related to digitalization are a prerequisite for the emergence of new risks in the work environment. The aim of the author in this report is to consider some of the physical and psychosocial risks associated with the new nature of work and on this basis to propose measures to improve the conditions for safety and health at work in organizations.


The time scale of acoustic fluctuations has been found to depend on source speed for a shallow‐receiver shallow‐sound source configuration in deep water off the coast of St. Croix, U. S. Virgin Islands Measurements were made of a 135‐Hz cw source towed at different speeds on a tangential track through a point 7.5 miles from the receiving hydrophones. Higher source speeds consistently gave rise to shorter correlation decay times. As the data integration period was increased from 5 to 100 sec, the measured correlation decay times increased as well, covering the range of 4–462 sec for various source‐speed—receiver‐depth combinations. The position of the receiver with respect to the thermal layer depth also plays a significant role.


The present work analyzes the global role of the South American hydrocarbon exporting countries, during the period 2005-2015, through the postulates of the System-World Theory and previous debates. Taking into consideration the historically peripheral role of regional producers, the main actions of bilateral and multilateral alliances in hydrocarbons are evaluated, which, at the time, were intended to promote a change in the strategic role of these countries. However, after the analysis based on the World-System Theory, it is evident that these alliances mostly failed and the countries maintained their condition of dependency. Therefore, if South America wants to have a strategic role in the international hydrocarbons market, it should see regional alliances not as an end, but as a means; where public-private projects are promoted and technological integration is encouraged to develop the energy industry in the region.


This paper is a logical pursuit of our investigations in modelling and control research of flexible assembly systems with object oriented Petri nets. In our previous work (1993), we presented a methodology of operating process control which concerns subassemblies. The subassembly management included input generic planning of product families and output product families. We also developed a method of how to manage generic planning with process sequencing. Indeed, this step is the static study of flexible assembly systems. The aim of the present paper is to show how to structure the dynamic part of the system, from the input parts and resources of manufacturing up to the assembled product output to the customers.


On certain conditions,homogeneous linear differential equation system with constant coefficients can have equivalent homogeneous linear differential equations with constant coefficients.As they have the same characteristic polynomial,they have the same characteristic root.The general solution of homogeneous linear differential equation system with constant coefficients can be found with the general solution of homogeneous linear differential equations with constant coefficients.


The invention relates to the field of virtual amusement fitness equipment, and particularly to a virtual treadmill system and a control method thereof. The virtual treadmill system comprises a treadmill, a control system thereof and a computer, wherein the control system further comprises an SCI (Serial Communication Interface) which is used for receiving a virtual scene message sent from the computer and further used for sending a motion parameter of the treadmill and a lifting message of the treadmill adjusted by the control system to the computer; the control system is used for controlling ascending and descending of the treadmill based on the received virtual scene message; the computer is used for virtualizing the scene message based the motion parameter of the treadmill and the lifting message of the treadmill. The embodiment of the invention can feed back a motion state of a sporter to a virtual scene of a display device through the computer, and the ascending and descending of the treadmill is controlled through changeable road slope of the scene, so that immersive sensation of the sporter is enhanced. Therefore, baldness sensation can be overcome, sport interestingness is increased, and the sporter can stick to doing the exercise.


In fields ranging from technical illustration to mapmaking, artists have developed distinctive visual styles designed to convey both detail and overall shape as clearly as possible. We investigate a non-photorealistic shading model, inspired by techniques for carto-graphic terrain relief, based on dynamically adjusting the effective light position for different areas of the surface. It reveals detail regardless of surface orientation and, by operating at multiple scales, is designed to convey detail at all frequencies simultaneously.


Isuggest that the prospering fields of physics, medicine, and finance illustrate the value of a strong empirical dimension to research that is well integrated with theoretical research. I use empirical research in these fields to formulate a framework for classifying empirical research and illustrate that framework with a few selected examples in operations management. I offer some advice on data sources and approaches to conducting empirical research and suggest ways strengthening empirical research in operations management. This is obviously a partial treatment of a large subject and represents my personal point of view. This paper should encourage comments by others to further develop the topic and to offer alternative points of view.


Numerical fire simulations (in terms of Computational Fluid Dynamics (CFD)) are becoming increasingly pervasive in fire safety analysis, because they offer many benefits beyond those offered by traditional methods. Nevertheless, such simulations are time-consuming and require a relatively large amount of computation power for use in engineering applications. Therefore, compared to other methods, the use of numerical fire simulations for construction projects is not as common as it should be given their benefits. Moreover, the results of a fire safety analysis affect the different parties of a project, such as the architects, structural engineers, or project managers. While these parties are usually unfamiliar with numerical fire simulations, they require easy access to the results of such simulations, which are usually conducted by a fire safety engineer. These aspects have led us to the present research on the development of new IT solutions for convenient deployment of numerical fire simulations, including suitable data preparation and data transmissions. This paper presents a novel distributed cloud-computing infrastructure to simplify the use of the numerical fire simulations for construction projects and encourage "fire safety teamwork" among the different parties involved in a project. Using this cloud system, clients can carry out numerical fire simulations on their own regardless of their location or device. The simulation module described herein runs on a computer cluster in order to increase the system performance.


Facies change of the Lgota Beds (Albian) in the Wadowice area (Western Carpathians)

East of Wadowice the Sub-Silesian and Silesian nappes are folded together into a complex anticlinal structure, called the Lanckorona zone. In this zone the Sub-Silesian nappe occurs in a few small tectonic windows, while the flanks of the zone are formed of beds belonging to the Silesian nappe (Fig. 1, 3, 4). In the northern flank of the zone the Silesian nappe contains the typical Lgota Beds, developed mainly as dark, well laminated sandstones alternating with black shales. In the southern limb there occur glauconitic coarse sandstones with poorly marked lamination and grey-green spotted shales. Their stratigraphie position, so far uncertain, has been cleared owing to microfaunal research. These beds, provisionally called Barwald Beds, contain foraminiferal assemblages identical with those of the Lgota Beds (see tables 1 and 2). In some places they are covered by variegated, mainly red, shales with a microfauna corresponding with that of the Variegated Godula Shales (Cenomanian-Turonian, see table 3, columns 2—4). In normal cross-sections the Barwald Beds are underlain by the Barremian- Aptian Verovice Shales. The Albian of the Sub-Silesian nappe occurring in the windows is developed either as the Gaize Beds (spiculitic sandstones, spongiolites and shales, Fig. 1, 4), or as grey-green spotted shales (Fig. 3). Either facies contain microfaunas identical with that of the Lgota Beds (see the list page 36 for the shales, and the list page 33 for the Gaize Beds). According to the spatial distribution of these four facies of the Albian one can reconstruct their position in the flysch basin. The Gaize Beds occupied the most northern zone; more to the south only shales were deposited, bordered from the south by the typical Lgota Beds, while the Barwald Beds occupied an innermost position. Compared with the Lgota Beds, which exhibit a well pronounced lamination and not rare small-scale current bedding, the Barwald Beds may be regarded as a more proximal deposit. Their material, similarly as that of the Lgota Beds, was brought in from the south or south-west, while that of the Gaize Beds was transported from the north and north-west.


As an international organization, "Shang Hai Cooperative Organization "shares the following features : multilateral ,regional, open,comprehensive, non-aligned and with new safe ideas and new regional cooperative mode etc. It is not only significant for the common development of the members in the region ,but also helpful for the progress of world multipolarization and international relationship democraticzation and the improving the establishment of impartial,reasonable and new international ,political and economical order.


Liquid-amount detecting apparatus detects the amount of liquid in the vessel. The liquid-amount detecting apparatus includes a liquid detecting circuit and a determining unit. Liquid detecting circuit is placed in contact with the liquid in the container, it comprises a liquid, and the AC signal source impedance and the electrode portion is in a conductive state upon contact. AC signal does not contain a direct current component is input to the electrode portion from the AC signal source through the source impedance, it outputs a signal indicating the negative electrode conductive. Further, on the basis of the output signal, a binary signal is output indicating the negative electrode conductive or not. The determination section determines the presence or absence of the liquid at the electrode unit based on the binary signal output from the liquid detecting circuit. Liquid amount detecting device, the AC signal, a DC signal, the ink, the container


This paper presents a modified control strategy for variable speed wind energy generation system (VSWEGS). The proposed VSWEGS is based on three phase squirrel cage induction generator (SCIG) operating under grid isolated configuration. For controlling of SCIG, the voltage and frequency control loops are employed. The frequency reference to the bidirectional converter also ensures the maximum power point tracking operation of SCIG. The active and reactive power flow is controlled by phase angle control loop. At input side of single-phase inverter, a dc to dc buck-boost converter keeps the voltage level of dc bus at a suitable value. The fixed frequency single phase inverter fed from the dc bus delivers the generated power to domestic loads. The proposed scheme is verified by the suitable MATLAB-Simulink simulation results.


In this paper the idea of functioning of Building Management Systems and Object Management Systems in intelligent buildings is presented. New functionalities of intelligent buildings resulting from the introduction of microgeneration are described. Low-Power Wide-Area Networks (LPWAN) are characterized and compared. The selected Long-Range (LoRaWAN) technology is tested for its use for communication with energy meters and monitoring the power supply network in intelligent buildings. In the paper a new system for reading and monitoring the network is proposed, consisting of hardware, communication, and application layers. A key element of the system is a specially developed converter, which has been designed and tested in a real urban environment. Using our solution in practice could allow to change the architecture of a measurement data acquisition system to much more flexible and efficient.


Thank you very much for downloading russian english translators dictionary a guide to scientific and technical usage. As you may know, people have look hundreds times for their favorite readings like this russian english translators dictionary a guide to scientific and technical usage, but end up in harmful downloads. Rather than reading a good book with a cup of coffee in the afternoon, instead they juggled with some harmful bugs inside their desktop computer.


The fault injection attack has been developed to extract the secret key which is embedded in a crypto module by injecting errors during the encryption process. Especially, an attacker can find master key of AES using injection of just one byte. In this paper, we proposed a countermeasure resistant to the these fault attacks by checking the differences between input and output. Using computer simulation, we also verified that the proposed AES implementation resistant to fault attack shows better fault detection ratio than previous other methods and has small computational overheads.


This report focuses on how policy makers would identify any spillover of drug trafficking-related violence into the United States. This report provides an overview of Mexican drug trafficking organization structures, how they conduct business, and the relationship between the drug trafficking organizations in Mexico and their partnerships operating here in the United States; a discussion of the illicit drug trade between Mexico and the United States, as well as a discussion of factors implicated in drug trafficking-related violence; an analysis of the possible nature of any spillover violence that may arise, as well as issues involved in accurately identifying and measuring such violence; and an evaluation of available crime rate data and a discussion of how this data may or may not reflect changes in drug trafficking-related crime.


This paper aims to propose a new control method for balancing and voltage regulation of a three-phase self-excited induction generator (SEIG) feeding single-phase load. The proposed control method is based on the continuous adjustment of the values of the excitation capacitors connected to the phases of the SEIG by employing a Static Var Compensator (SVC). The dynamic model of the SEIG and the SVC is established by using the d-q transformation. The simulation results show that the proposed control method permits to balance the SEIG as well as to feed the single-phase load with the desired voltage.


Puts forward an improvement RPN method for CNC grinding machine of reliability analysis. Expounds the defects of traditional method of risk priority number,and aims at these defects and the area of CNC grinding machine reliability analysis,the improved calculation method of the RPN is given. Improved RPN method not only overcomes many defects of traditional methods,but also is easy to operate,more in line with the actual situation. The improved RPN method has carried on the risk assessment for a group of CNC grinding machines to determine the risk priority rank of each subsystem. And then find the weak link of CNC grinding machine,to strengthen the weak links,improve the overall reliability of CNC grinding machine. It has been proved that the improved RPN method to improve CNC grinding machine reliability has important guiding significance.


As society evolves, people face more and more complex cognitive challenges, which actually requires the needof continuous everyday learning in order to excell. This process of learning takes place not only individually, but alsoorganizationally, as organizations can perform better employing the knowledge they have.Following a brief conceptual analysis, the article presents main characteristics of the lessons learned process at the levelof the Ministry of Internal Affairs. Moreover, thorough a sociological survey based on a qualitative interview, I analyze thenecessity and the possibility of implementing the lessons learned concept within the Ministry of Internal Affairs.


The need for deformation surveys of large engineering structures such as long span bridges, dams and tall structures often arises from concerns associated with environmental protection, property damage and public safety. There are many high buildings nowadays, therefore it is very important to monitor the buildings to ensure they are still under stable condition. Recently, the Global Positioning System (GPS) especially Real Time Kinematics (RTK-GPS) has emerged as a survey tool for many deformation applications. The RTK-GPS is carrier phase observation processed in real time, giving results such as position coordinates. This study highlights the concept and methodology of the continuous RTK-GPS and its potential application for high rise building monitoring surveys. The main objectives of this study are to study the ability and efficiency of the continuous RTK-GPS method in high rise building' deformation detection and also to develop KFilter program for movement monitoring using Matlab v6.1 with Kalman Filter method. The GPS instruments' calibrations had been carried out to ensure accuracy and reliability of the continuous RTK-GPS observation for high rise building movement monitoring. The surveys had been carried out on Menara Sarawak Enterprise, Johore Malaysia in two different epochs. Thus, the developed KFilter program is able to perform the movement monitoring analysis on the observed data to classify the stability of the building. The results of this study shows that the continuous RTK-GPS can provide 1cm and 2cm accuracy for horizontal and vertical respectively. The effectiveness of this technique depends on radio link communication whereby obstructions will cause the communication signal to fail. From the KFilter program analysis, the results shows that the Menara Sarawak Enterprise building is stable. The continuous RTK-GPS epoch 1 and epoch 2 analyses had shown the building is stable although displacement distance around 0.5cm and 1cm respectively are detected.


Dibenzoselenophene forms orthorhombic crystals based on a dimeric unit. The geometry of the dimer pair makes this crystal an ideal case for the appearance of charge‐transfer bands. All bands below 50 kK can be assigned to single‐molecule transitions; no charge‐transfer bands appear. The polarization directions for the transitions are assigned.


The acoustic renovation of Vancouver's Queen Elizabeth Theatre (QET) is discussed. The need to extend beyond normal air-borne noise control designs is essential with 'soft seat' rock and roll. The two rooms of the theatre were separated by a 75 mm acoustic joint extending from the east side of the building to the west along the north side of the QET flytower, in the summer of 2006. This was a formidable task, given that the concrete footings for the flytower were several feet deep. In 2007, the ceiling was removed to increase the height of the room, which has increased the enclosed volume and, consequently, the Reverberation Time. It has also improved the Height to Width ratio of the room, which will increase the Early Decay Time (EDT). A number of other modifications are also being made to improve acoustics such as the side walls are lined with thin wood panels that absorb low frequency sound and will consequently be removed.


Three statistical methods to predict the potential of crosses to produce elite genotypes were examined namely univariate probabilities (PROB), family mean (MEAN) and the observed frequency of genotypes that transgress the set target values (OBS). The studies were based on twenty random biparental crosses over two contrasting locations namely a subhumid irrigated and a superhumid environment, at the seedling generation. The following traits were examined : cane yield, stalk diameter, stalk number, stalk height, stalk weight, growth hubit, leaf stripping ability and breeder's preference. In general, there were highly significant positive correlations between pairs of statistics for most traits as follows : 0.58 I r 5 0.99 between PROB and OBS, 0.94 I r 5 1.00 between PROB and MEAN and 0.60 2 r 5 0.99 between MEAN and OBS. When the predictions were used to provide a ranking of the crosses, the rank correlation showed highly signiJicant agreement between observed and expected ranks and between the two sites for most traits. These results show that univariate cross prediction methods are robust in unambiguously identz3ing the superior crosses in terms of their likelihood of producing elite genotypes and could be useful in improving the eficiency of the breeding programme.


Innovation makes one plus one more than two. Only innovation can make up develop, acquire wealth and soar in the sky. If Anhui wants to be out of poverty and acquire wealth, Anhui people should work hard to innovate.


This essay sets out to describe the opportunities furnished by Swedish population statistics for elucidating the demographic aspects of immigration as well as presenting various figures concerning fertility mortality and changes of marital status among the immigrant population of Sweden. The account begins with a brief presentation of the basic statistical material available in Sweden and a discussion of the term immigrant. (EXCERPT)


The University of Hawaii routinely collects direct broadcast MODIS images over Hawaii. Using this data set we process real time satellite images of aerosol optical depths around Hawaii using our custom algorithm. MODIS channels 1 and 2 (~ 645 and ~ 858 nm) are used to derive aerosol optical depth spatial and temporal properties. The use of MODIS channels 1 and 2 provides images with 250 m resolution resulting in improved cloud detection. Due to this improvement, background aerosol optical depths values remain low even in regions of many small clouds. Although cloud rejection is not expected to be perfect, using 250 m resolution data provides a significant improvement over 1 km resolution data. In order to correct for surface reflection, meso-scale wind fields from the Regional Spectral Model (from the National Center for Environmental Prediction) and synoptic scale winds (from National Center for Environmental Prediction) are interpolated to the satellite pixel size. The use of meso-scale wind fields is required for the complex wind fields in and around the Hawaiian Islands. Here we will discuss the aerosols encountered in Hawaii, and provide examples of interesting aerosol optical depth images around Hawaii.


Objective:To explore the feasibility and significance of PBL "localization" model applied in preclinical medical teaching.Method:30 students were randomly chosen as enrollee;the traditional teaching model was combined with PBL and the effect was observed.Results:PBL model is widely welcomed by students; most students think that PBL can stimulate their learning interests and heighten their ability to analyze and solve problems.However,based on the school conditions,this teaching model should be combined with the traditional teaching model.Conclusion:At present,a combination of traditional and PBL teaching mode is more suitable for preclinical medical education in China.


Objective To investigate the diagnostic value of ultrasound in hemorrhagic corpus luteum cyst with pregnancy,and to improve its diagnostic accurancy.Methods Eight pregnant patients with corpus luteum disruption comfirmed by pathology were analyzed restrospectively.Results Three of 8 cases were with accompaniment cyst and intrauterine pregnancy,3 were with corpus luteum disruption and ectopic pregnancy,1 case was with corpus luteum disruption and intrauterine pregnancy,and cyst in right accompaniment was found in 1 case,intrauterine pregnancy was observed by ultrasound after operation.Conclusion Ultrasonography has important clinical value in the diagnosis of hemorrhagic corpus luteum cyst with pregnancy.


Of equal importance with the question of the amount of growth produced by a year's work is that of the permanence of the growth. Table VI gives for Grades 4 to 9 the average scores in the speed tests in September, 19o09, the highest scores made at any time during the year, and the scores of the same classes the following September after the long summer vacation. From these the gains during the year, the losses during the summer can easily be computed. The last two columns show the differences between the September tests and the percentage of improvement. The results are striking and suggestive. The large gains of the fifth and sixth grades are offset by the large losses during vacation, while the growth of the seventh and eighth grades is seen to be relatively permanent. If these results are confirmed by future work, the seventh and eighth grades would seem to be the place in the course where rigid drill on the combinations would be most effective. At the beginning of the year it was felt by all concerned that there was one question that the year's work must settle, and settle very definitely. Do such short, simple, comparative tests yield reliable results, or would repeated tests give very different relative standings? There is not space here to marshal all the evidence that proves the grade averages reliable measures of grade abilities, but an examination of the results in Table V1 from this point of view will show how consistently grade after grade has obtained the same score in successive tests. It is to be remembered that all these grades were subject to constant practice in their daily work and drill, so that it is only the before-and-after-vacation scores, or successive scores during a


The Copper Basin Mining District Site (Site) has been host to 150 years of copper mining, beneficiation and mineral processing, and sulfuric acid and other chemical production processes that have left a legacy of environmental degradation that has affected the Ocoee River. In order to improve the health of the Ocoee River, the US Environmental Protection Agency, Tennessee Department of Environment and Conservation, and Glenn Springs Holdings, Inc. a subsidiary of Occidental Petroleum Company, agreed to conduct a cooperative, voluntary environmental restoration and redevelopment of the Copper Basin. Part of this agreement was to develop and implement interim actions to alleviate contaminant loading to the Ocoee River so that short-term progress could be realized while long-term remedial actions were identified and implemented in upper parts of the watersheds. Use of an adaptive management approach to watershed restoration has resulted in early identification of the most significant problems. The major benefit of this process has been early remediation of the worst problems in a complex set. This has allowed valuable resources traditionally utilized for full site characterizations to be applied toward remedial activities, which could potentially change the original character of the Site. Results of the early restoration successes in this hard-rock mining impacted watershed are presented along with long-term remedial actions being conducted in upper parts of the watersheds. Measurable success has been achieved in part because of the flexibility resulting from regulatory collaboration and stakeholder cooperation.


AI is turning up everywhere, but when people try to use it to as a tool help make better decisions it often stumbles…users reject it, rely too much on it, and so forth. Not only is this a problem for AI-as-tool applications, it is increasingly clear that AI without human oversight is prone to bad mistakes, typically because the AI has such a narrow view of the world and can't tell when it is violating norms or when the context has changed. As a consequence, AI-automation is getting serious pushback from citizens and lawmakers. What are we to do in order to integrate AI tools into human group decision making?


It is investigated the effects of the addition of three PPgMA, with different molecular weight and maleic anhydride content, on the structure, morphology, mechanical, thermal and antimicrobial properties and oxygen permeability of iPP/ZnO 98/2 wt% composite. The composition of iPP/PPgMA/ZnO composites is fixed at 88/10/2 wt%, that is, about 10 wt% of iPP is substituted with PPgMA. The composites are prepared via melt mixing by using a twin-screw extruder. The ZnO is obtained in a preindustrial scale spray pyrolysis platform. The Fourier Transform Infrared spectroscopy indicates that the ZnO particles, in all the ternary composites, react with maleic anhydride groups of PPgMA. From the analyses of the mechanical properties, permeability to oxygen and antibacterial activity against E.Coli, it is concluded that the best compatibiliser among the three is PPgMA with 1.4% of MA and Mw 65,000, but the antibacterial activity is much lower than that of the binary iPP/ZnO 98/2 wt%. Moreover, it is found that the antibacterial activity is more efficient for the film that presents clusters of the ZnO particles on the surface than the film with ZnO particles smaller and better distributed on the film surface, and embedded in it.


According to the carrier sensing mechanism adopted by distributed coordination function (DCF) in IEEE 802.11 standard, a node defers its communication if it senses the medium busy. However, this deferment might block more concurrent communications than necessary. In addition, in DCF, the time duration of deferment is not delivered to all potential interferers, particularly those in the distance. This paper proposes collision-aware DCF (CAD) that efficiently utilizes the available channel resource along both the spatial and time dimensions. Basically, CAD embeds the spatial and time reservation requirements in the PHY header, which is transmitted at the lower data rate, so that a larger group of potential interferers become aware of the ongoing communication and thus avoid collisions. Extensive simulation based on the ns-2 has shown that CAD offers as much as 21% higher packet delivery rate and 91 % lower packet delay than DCF with the CBR (constant bit rate) traffic


Upon irradiation of 1,3,5-tricyanobenzene in isobutyronitrile one or two ring hydrogens were replaced with isopropyl groups, while in the case of 1,2,4,5-tetracyanobenzene one of the cyano groups was replaced.


There are several factors that restrict the informationization of the small and medium - sized enterprises. They are as follows: the weakness of dynamics of investment, scarcity of specialized personnels, lag of com-mericial credit payment and distribution system, and imperfection of legislation of the information economy.


Cluster state computation or the one way quantum computation (1WQC) relies on an initially highly entangled state (called a cluster state) and an appropriate sequence of single qubit measurements along different directions, together with feed-forward based on the measurement results, to realize a quantum computation process. The final result of the computation is obtained by measuring the last remaining qubits in the computational basis. In this short tutorial on cluster state quantum computation, we will also describe the basic ideas of a cluster state and proceed to describe how a single qubit operation can be done on a cluster state. Recently, we proposed a repeat-until-success (RUS) scheme that could effectively be used to realize one-way quantum computer on a hybrid system of photons and atoms. We will briefly describe this RUS scheme and show how it can be used to entangled two distant stationary qubits.


In this thesis we study different machine learning frameworks for learning multiple
tasks together. Depending on the motivations and goals of each learning framework
we investigate their computational and statistical properties from both a theoretical
and experimental standpoint.
The first problem we tackle is low rank matrix learning which is a popular model
assumption used in MTL. Trace norm regularization is a widely used approach for
learning such models. A standard optimization strategy is based on formulating
the problem as one of low rank matrix factorization which, however, leads to a
non-convex problem. We show that it is possible to characterize the critical points of
the non-convex problem. This allows us to provide an efficient criterion to determine
whether a critical point is also a global minimizer. We extend this analysis to the case
in which the objective is nonsmooth.
The goal of the second problem we worked on is to infer a learning algorithm that
works well on a class of tasks sampled from an unknown meta-distribution. As
an extension of MTL our goal here is to train on a set of tasks and perform well
on future, unseen tasks. We consider a scenario in which the tasks are presented
sequentially, without keeping any of their information in memory. We study the
statistical properties of that proposed algorithm and prove non-asymptotic bounds
for the excess transfer risk.
Lastly, a common practice in ML is concatenating many different datasets and applying a learning algorithm on this new dataset. However, training on a collection of
heterogeneous datasets can cause issues due to the presence of bias. In this thesis we
derive a MTL framework that can jointly learn subcategories within a dataset and
undo the inherent bias existing within each of them.


Exciton radiative recombination properties of an electronically isolated triple GaAs quantum well (QW) with different thicknesses prepared by growth-interrupted molecular beam epitaxy have been investigated with respect to the effect of growth islands present in each QW. When cold excitons with a negligible center-of-mass motion are resonantly photoexcited within each dominant island terrace, the PL dynamics of the split exciton lines reflect the exciton intra-well transfer towards the wider-well terraces. However, dramatic changes are observed in both the PL intensity distribution and the dynamics between the QW's as well as between the island terraces under resonant excitation into an excited (n = 2) state of the widest well located just below the barrier band edge. We tentatively attribute the origin of these changes to the different exciton relaxation pathways in terms of center-of-mass kinetic motion of the two-dimensional excitons. PACS codes: 78.66.Fd; 78.47.+p; 78.55.Cr; 73.20.Dx


In the modern stock system enterprises,the ownership and the operation right are separated,since the differences between stockholders and operators,such as the aim,the asymmetry about information,they conflict of interest,so they need to set up the control system and try to make it perfect.


As this paper demonstrates, the Philippines is undergoing much environmental degradation—mainly in the form of deforestation, soil erosion, disruption of hydrological systems, over-exploitation of fisheries, destruction of coral reefs, and extinction of species. These problems are accentuated by the pressures of a large, fast-growing and impoverished population; and they may shortly start to be aggravated yet more by climatic change in the wake of the global 'greenhouse effect'. Moreover, and as this paper further makes plain, the environmental degradation leads to adverse economic consequences that are pervasive and profound—as may be expected in a country where several salient sectors of development are dependent upon the natural-resource base. In the long run, indeed, environmental degradation could well preclude the Philippines' prospects for sustainable development.


To determine the effects of daily oral doses of enclomiphene citrate compared with topical testosterone gel treatment on serum total testosterone (TT), luteinising hormone (LH), follicle‐stimulating hormone (FSH), and sperm counts in men with secondary hypogonadism.


Juan Antonio Trigueros Centro de Salud Menasalbas Calle Donantes de Sangre, s/n 45128 Menasalbas, Toledo, Spain E-mail: firstname.lastname@example.com In the last 3 years, Juan José Garrido has received fees as speaker in scientific meetings sponsored by Zambon, AstraZeneca, GSK, Chiesi, and Novartis. He has also received financial assistance for attendance at congresses by Chiesi, Menarini, TEVA, and Novartis and funding for research projects from AstraZeneca and GSK. Santiago Quirce has been on advisory boards for and received speaker's honoraria from AstraZeneca, GSK, MSD, Novartis, Chiesi, ALK-Abelló, LETI, Sanofi, and BoehringerIngelheim.


In the last decades, there is a vivid interest of many researchers about algorithms with natural procedure similarities. Artificial Neural Networks (ANNs) are wide known algorithms, which have been developed in order to solve complex combinational problems and can be proven as a powerful tool in medical research. This paper implements computational algorithms, which were based on artificial neural networks for the dementia's types distinguish. Diversity of ANN architectures are implemented and assessed for correct prediction of types of dementia, based on available cases. The obtained results prove that ANNs have the ability to be incorporated in the field of Neurology.


This study uses the product space map approach to study the future of manufacturing in India. It uses value added export data to predict structural transformation of the country's manufacturing sector.


The inclusion of Transmission Control Protocol (TCP) is necessary for the realistic simulation of data networks. However, the operation of HTTP-TCP sources puts a heavy tax on the simulations leading to two major scalability problems: the computing resources required by each source put a limit on the total number of sources that can be simulated, and the number of events generated by every simulated connection leads to long simulation times. The problems while addressable for the present day networks become major obstacles for realistic simulations of optical networks. In this paper we present an open-loop traffic source that generates traffic statistically similar to the traffic produced by a number of HTTP-TCP sources. The source is based upon an integrated packet-session levels model that captures the web user-behavior as well as the TCP characteristics. The gain against the scalability problems comes by reducing the required number of sources, and by simulating only the slow-start mechanism of TCP. By comparing key traffic statistics we show that the source qualifies as a good candidate for generating network traffic.


Zero mark-up policy for drugs means more than just a simple transfer from payment for drugs to payment of medical service.It relates to the interests of the government and the market,social security,the public,healthcare facilities,healthcare professionals,doctors and patients.Financial input is the important guarantee for health care reform,while the key of the reform is how to liberate the productivity of healthcare professionals.The value of healthcare professionals is not reflected by the price of the medical services they provide,but the reward they get.The government should increase the hospital input,rationalize price mechanism,improve the benefit of healthcare professionals,expand human resources,cultivate talents and support the construction of scientific research and technology so as to benefit the public and the hospital.


75 Inventors: Neal S. Bergano, Lincroft; Carl R. optical Signal. The method includes the Step of generating an Davidson, Manalapan, both of N.J. optical Signal that includes a plurality of optical channels, which are sequentially numbered from 1 to N from lowest to 73 Assignee: Tyco Submarine Systems Ltd., highest wavelength. A State-of-polarization of predeter Morristown, N.J. mined odd-numbered channels is oriented to be Substantially orthogonal to a State of polarization of predetermined even 21 Appl. No.: 09/031,018 numbered channels by directing the predetermined odd numbered channels and the predetermined even-numbered 22 Filed: Feb. 26, 1998 channels through orthogonally polarizing inputs of a polar (51) Int. Cl. ................................................ H04J 14/06 ization coupler. The odd-numbered channels and the even 52 U.S. Cl. .......................... 359/122; 35.9/124; 35.9/156; numbered channels may be directed through first and Second 359/161; 359/133; 359/180 wavelength combiners, respectively, prior to orienting their 58 Field of Search ..................................... 359/122, 124, states of polarization. The orthogonal relationship between 359/133, 156, 161, 173, 180 the States of polarization of odd and even-numbered chan nels advantageously limits the four-wave mixing products 56) References Cited that can be generated in the optical transmitter and the optical transmission path to which it is typically coupled. U.S. PATENT DOCUMENTS


..................................................................................................... 294 A. Introduction ......................................................................................... 294 B. Three Models of Derivatives Regulation ............................................ 295 C. The American Credit Default Swaps Case .......................................... 301 D. The Polish Toxic Currency Options Case ........................................... 306 E. Conclusion ........................................................................................... 309 Ph.D., LL.M. Cantab., Assistant Professor at University of Łódź, Department of Legal Theory and Philosophy of Law and Post-doctoral KOLUMB Visiting Scholar 20082009, Faculty of Law, University of Cambridge. The article has been prepared within the framework of the KOLUMB research program sponsored by the Foundation for


Aberrant internal carotid artery is rarely seen in the middle ear cavity. Aberrant internal carotid artery can mimic dehiscence of the jugular bulb, glomus tumours, haemangiomas, and cholesterol granulomas on computed tomography. Because the symptoms and signs are usually nonspecific or absent, clinical diagnosis of aberrant internal carotid artery is very difficult. The most common symptoms are pulsatile tinnitus, hearing loss, and retrotympanic mass. In this case, we report an aberrant internal carotid artery in the middle ear presenting with pulsatile tinnitus and hearing loss.


Facing the big data wave, this study applied artificial intelligence to cite knowledge and find a feasible process to play a crucial role in supplying innovative value in environmental education. Intelligence agents of artificial intelligence and natural language processing (NLP) are two key areas leading the trend in artificial intelligence; this research adopted NLP to analyze the research topics of environmental education research journals in the Web of Science (WoS) database during 2011–2020 and interpret the categories and characteristics of abstracts for environmental education papers. The corpus data were selected from abstracts and keywords of research journal papers, which were analyzed with text mining, cluster analysis, latent Dirichlet allocation (LDA), and co-word analysis methods. The decisions regarding the classification of feature words were determined and reviewed by domain experts, and the associated TF-IDF weights were calculated for the following cluster analysis, which involved a combination of hierarchical clustering and K-means analysis. The hierarchical clustering and LDA decided the number of required categories as seven, and the K-means cluster analysis classified the overall documents into seven categories. This study utilized co-word analysis to check the suitability of the K-means classification, analyzed the terms with high TF-IDF wights for distinct K-means groups, and examined the terms for different topics with the LDA technique. A comparison of the results demonstrated that most categories that were recognized with K-means and LDA methods were the same and shared similar words; however, two categories had slight differences. The involvement of field experts assisted with the consistency and correctness of the classified topics and documents.


Diploma work processes project of company bulletin for Moravske naftove doly - the biggest company engaged in exploration and production of crude oil and natural gas and as well as the construction and operation of underground gas storage facilities in the Czech Republic and also abroad. Considering her organization chart that associates geologists, mining engineers, economists also workers from different spheres, it is necessary to evolve corporate communication and internal PR. Project of company bulletin would have been contributing to better awareness of all groups employees - to offer them information and news of all comapny activities, get review of events in the company and strengthen their firmness.


Hidden communications creates a capability to transfer data between entities secretly. Steganography techniques can be used to hide the existence of a communication channel within a multimedia carrier (may be image, video, or audio). Quantization Index Modulation (QIM) is a technique of steganography based on quantizing the carrier coefficients. In single embedding in QIM, each sample is quantized once to carry a single bit of the secret message data. Double embedding in QIM developed by Sarkar and Manjunath in 2009, to increase the transferred data rate where a single sample is quantized twice to carry two bits in time. In this paper, multiple embedding in a QIM framework with multi quantization vectors is developed to have more increasing in data transmission rate. A structured scheme of Multiple Trellis-Coded Quantization jointed with Multiple Trellis-Coded Modulation (MTCQ/MTCM) is proposed as the heart of our approach to be used to generate the stego-cover space. Simulation results in case of using images as cover-works indicate that the Peak Signal-to-Noise Ratio (PSNR) between the host and the altered images is greater than 40 dB. More over, increasing the coding states and/or the coding multiplicity results an altered space with low correlated coefficients, thus improving the transferred data detection error rate performance.


By using the Lyapunov-Krasovskii functional approach, the robust passive control problem for uncertain linear singular time-delay systems is investigated. Sufficient conditions are firstly given to ensure that linear singular systems are admissible (that is, regular, stable, impulse-free) and passive. Secondly, based on the linear matrix inequality method and cone complementarity linearization (CCL) technique, the robustly state-feedback controller is designed to guarantee that the resultant closed-loop singular systems are admissible and robustly passive with dissipation. Finally, two illustrative examples and their simulations are presented to show the effectiveness of the obtained results.


Article is dedicated to the analysis of "Sociology" session held as a part of the International conference for students, post-graduate students and young scientists "Lomonosov–2017". Such events help to find, retain and develop talented youth, to involve it in solving the actual problems of modern science.


This paper aims at setting forth opinions on the issue of the author of Taiji Tu. At first, departing from the different expressions of the "fiveelement" theory in Taiji Tu and Taiji Tu Shuo, this paper points out that the "fiveelement" thoughts of the two books are attributed to different transmitting systems. Secondly, by deeply comparing the similarities and dissimilarities between the two "fiveelement" thoughts, the paper further points out that, by this contradiction, we may preliminarily judge that these two books were absolutely not written by the same author.


AIM: To study pharmacokinetics and relative bioavailability of pantoprazole sodium enteric-coated test and reference tablets in healthy volunteers. [WTHZ]METHODS: A single oral dose of 40 mg pantoprazole sodium enteric-coated test and reference tablets were given to 20 male healthy volunteers in a randomized two-way crossover design. Plasma concentrations of pantoprazole were determined by HPLC method. Pharmacokinetic parameters and relative bioavailability were calculated with DAS program to evaluate the bioequivalence of the two preparations. [WTHZ]RESULTS: Plasma concentration-time profiles were adequately described by a two-compartment open model. The main pharmacokinetic parameters of pantoprazole sodium test and reference tablets were as follow: The values of T max were ( 3.18 ± 0.54 ) and ( 3.30 ± 0.47 ) h, C max were ( 2.98 ± 0.83 ) and ( 2.91 ± 0.87 ) mg·L -1 , T 1/2β were ( 1.86 ± 0.41 ) and ( 1.72 ± 0.48 ) h, AUC 0-t were ( 9.51 ± 3.71 ) and ( 9.77 ± 4.55 ) mg·h·L -1 , respectively. The relative bioavailability of test tablets was ( 102.3 ± 19.6 )%. [WTHZ]CONCLUSION: The two preparations of pantoprazole sodium are bioequivalent.


The task of logistics in the field of sales and distribution of the products is to achieve the highest quality of service with as lowest cost as possible. These are two conflicting goals that need to be explored and tackled together with the tendency to come up with an optimal solution. The quality of logistics services is directly linked to costs through two key perspectives. The first refers to the good quality costs, which involve investing in preventive solutions, such as implementation of quality standards, planning, management, control and quality assessment. The second perspective refers to the bad quality costs, which are the consequence of nonconformance, internal and external errors. This paper provides a review of different approaches and models for determining the cost of quality, such as: PAF model, opportunity cost model, process cost model, ABC model and Taguchi's loss function. The procedure for determining costs in the area of distribution and delivery of the products from the distribution center to the stores is presented. The methodology in this paper includes: mapping and process analysis, identification, quantification and analysis of the quality costs.


The present invention relates to an apparatus system for a tank (1); a fuel tank for a motor vehicle having a system (1) according to the present invention apparatus. Concentration using the concentration sensor flushed out of the activated carbon filter of volatile components (30) probe. Concentration sensor (30) is used as alarm sensors, in order to prevent interference in the formation of mixed gas of the engine (60) in the.


In this paper, it is shown the electromagnetic in∞uence of the rounded corners which arises on the mechanical manufacturing process. Normally, microwave devices and resonant cavities are designed on the EM simulator with sharp corners. However, with this consideration, some response and behaviors are neglected. Concerning the difierences between sharp and rounded corners, the investigation was carried out for a GTEM | Gigahertz Transverse Electromagnetic Chamber, speciflcally the APEX (the exciter sector) and a horn antenna. An EM simulator, based on the Finite Element method (FEM) was employed with very accurate models to identify the in∞uence of the rounded corners on the propagation regime. To be sure that the simulation tool is doing a reflned numerical solution, a close up of the meshing at the corner was verifled. The simulated results show that the numerical analysis is compatible with the analytical solution for electrostatic flelds presented in several works. Also, they show a non-negligible sensitivity of S11 parameter when comparison between sharp and rounded corners are done. The electromagnetic analytical treatment of corner geometry on electronic circuits, RF systems or microwaves components is normally neglected and sharp corner is a constant geometry that empires on the simulation work and design procedure. This fact arises from the simplicity of analysis of the sharp geometry compared to the rounded ones and the computational cost required. In large dimensions, this approximation is acceptable, but it is inaccurate in the region of the corners and these singularities impact the performance of the implemented structure or device. Generally, in the literature the corner is analyzed on the electrostatic regime and not on the propagation one. In (1) is proposed a numerical method to approximate the electric scalar potential based on observations, where the solutions are in∞uenced by changes of the curvature radius. Thus, based on the difierences between sharp and round corners, some studies and investigation were done to verify the impact of this mismatch on a GTEM | Gigahertz Transverse Electromag- netic Chamber, speciflcally the APEX (the exciter sector) and a horn antenna. An EM simulator | CST Studio (but not limited to), based on the Finite Element method (FEM) was employed with very accurate models to identify the in∞uence of the rounded corners on the propagation regime. Although the classical works on rounded corners (2,3) were focused on high power and strong electric flelds, the analysis presented here shows clearly that even for low power excitation and in high frequency range, there is a noticeable fleld disturbance on the pattern.


The aquifer's overexploitation declaration of La Llanura Manchega entails a necessary control by Guadiana River Basin Authorities about the yearly regime of exploitation of the groundwater resources. Without a doubt, remote sensing techniques with satellite images are the most efficient tool for realise this control. In the following paper, it's presented a comparative analyse of this study between different years 2004 to 2008. Palabras clave: superficies en regadio, acuiferos sobreexplotados, regimen de explotacion.


The analyses of experimental results which are necessary in the determination of the structure and rate constants of pharmacokinetic systems are frequently subject to considerable errors. These errors, resulting from assay techniques and from physiological mechanisms within the test subject, make interpretation of results difficult. This may lead to problems in distinguishing between various feasible models and can result in a need to employ over‐simplified models for subsequent work. A technique is proposed which may help to reduce the effects of such errors. The technique is applied to simulations of experiments and results are presented which allow comparison of the accuracy of the parameter estimates with those obtained by methods which are more normally employed.


An analytical model of an electromagnetically operated friction-disk clutch is constructed in order to determine the wear on the clutch face. The face consists of two materials—metal rings and friction material. The pertinent differential equations, derived in the Appendexes, are solved numerically. The effects of varying such parameters as hardness, residual magnetism, and elastic constants are studied.


A genetic zonality may be due to differences in the stage of cat agenesis of sapropelic and mixed organic matter. Examples of ga s pools associated with low stages of metamorphism are the dry methane pools of the Pliocene of the Peri-Caspian depression, the Tertiary of the platform flank of the Cis-Caucasus (particularly the Stavropol dome), the Tertiary sediments of North Ust-Urt, and the small pools of the dry methane gas in the Pleistocene-Pliocene sediments of the Gulf Coast. Examples of gas accumulations associated with high stages of catagenesis are the carbonates of the Ellenbergen and Ar buckle of the West Texas area, the Lower Carboniferous clastics of the southeast pa rt of the Dnieper-Donets depression, the Mesozoic carbonate-clastics of the Smackover and Norphlet formations in the Gulf of Mexico region, and the Mesozoic carbonate-clastic rocks of the Aquitane basin. Primary genetic zoning may be disturbed by degassing of pools and by lateral migration of the gases.


Abstract A sensitive continuous-flow sensor based on chemiluminescence (CL) detection was developed for the determination of reserpine at nanogram level by the immobilization of the reagents. It was found that the CL intensity from the oxidation between luminol and periodate could be decreased in the presence of reserpine. The decrease of CL emission was correlated with the reserpine concentration in the range from 1.0 to 300 ng mL−1, and the detection limit was 0.3 ng mL−1 (3σ). The system could produce an evident CL signal by water as eluent and it was also shown that the flow sensor could greatly improve the selectivity and sensitivity for determination of reserpine with a high signal-to-noise ratio. A complete analysis, including sampling and washing, could be performed in 0.5 min with a relative standard deviation of less than 3.0%. The proposed procedure was applied successfully in the assay of reserpine in pharmaceutical preparations and biological fluids samples. The flow sensor offered reagentless procedures and remarkable stability in determination of reserpine, and could be easily reused over 80 h.


PURPOSE
To analyse short term visual outcomes and macular morphologic changes associated with intravitreal injection of bevacizumab (Avastin) therapy for subfoveal choroidal neovascularization (CNV) in age-related macular degeneration (AMD) METHOD: Retrospective study of 59 eyes. Each included eye received 3 intravitreal injections of 1.25 mg bevacizumab at 4 to 6-week intervals. Mean follow-up was 5.5 months (range 3 to 9). Best-corrected visual acuity, ophthalmoscopic examination, optic coherence tomography and fluorescein or green indocyanin angiography were performed before and routinely after the treatment.

RESULTS
A total of 160 injections were performed with a mean value of 2.7 (1-6) per eye. Visual acuity improved at least two lines in 17% (10 eyes), worsened at least two lines in 14% (8 eyes) and was stabilized in 69% (41 eyes). Among that last group of 41 eyes, a significative reduction of macular thickness was observed in more than 39% (12 eyes) and a subjective improvement with less metamorphopsia and better visual comfort was noticed in 24% (10 eyes). No intraocular or systemic adverse effects were observed except a self-limited iritis in two cases.

CONCLUSION
Intravitreal bevacizumab therapy resulted in visual and morphologic improvements in a significant number of cases of advanced AMD with CNV. Randomized studies and longer follow-up are needed to confirm these preliminary results.


We calculate the difference of the ionization energies of a core electron of a surface alloy, i.e., a $B$ atom in a ${A}_{1\ensuremath{-}x}{B}_{x}$ overlayer on a fcc $B(001)$ substrate, and a core electron of the clean fcc $B(001)$ surface using density-functional theory. We analyze the initial-state contributions and the screening effects induced by the core hole, and study the influence of the alloy composition for a number of noble metal-transition metal systems. Our analysis clearly indicates the importance of final-state screening effects for the interpretation of measured core-level shifts. Calculated deviations from the initial-state trends are explained in terms of the change of inter- and intra-atomic screening upon alloying. A possible role of alloying on the chemical reactivity of metal surfaces is discussed.


I Feel it a great honour to be permitted to address you to-day There have been some schoolmaster Presidents in the history of the Association. R. B. Hayward was President from 1878 to 1888 while a master at Harrow; Canon J. M. Wilson, a pioneer of Science teaching at Rugby, and one of the earliest to work actively for geometrical reform, became our President long after his retirement, and then there have been three in recent times, with all of whom I have been closely associated, and to whom I should wish to pay tribute.


After larvae of Tenebrio molitor L.were fed on the diet with selenium compound,their weights,the concentration of selenium in larva and in their faeces were measured,and the special growth rate and the bioaccumulation factor(BAF)of selenium of the larvae were calculated to analyze the conditions of selenium accumulating effectively in larvae.The results showed that when the selenium concentration in diet was 15~20 mg/kg,the concentration of selenium in larvae and the BAF of selenium of larvae were obviously higher than those in the other groups.When the concentration of selenium in diet was higher than this level,the concentration of selenium in larvae decreased,and the normal larval growth was restrained.With the selenium concentration increased in diet,the special growth rate,the food consumption,the faeces amount,and the dry material content of larvae decreased,and the mortality of the larvae,the selenium concentration in faeces increased..The selenium bioaccumulation in larvae was best when the selenium concentration in diet was 15~20 mg/kg.


OBJECTIVE: To discuss the clinical effect in three dimensional conformal radiation therapy(3DCRT) for esophageal carcinoma and evaluate the delineation of rational target volume.METHODS: Forty-six patients with esophageal carcinoma were treated with 3DCRT.The target volume was described as the gross tumor volume and the clinical target volume,the planning target volume.The prescribed dose to PTV was 60-70 Gy.Kaplan-Meier statistical method was used to calculate the locoregional progression-free and overall survival rate.The local recurrence was evaluated in port,marginal and outside as comparing CT before and after the radiotherapy.Local recurrence was classified as in port,marginal and outside.In port local recurrence was within the 90% isodose;marginal was within the 50% to 90% isodose;outside was without the 50% isodose.RESULTS: The 1-,2-year locoregional control survival rates were 67.4% and 49.9%,respectively.The overall survival rates were 76.1% and 58.7%.Among the local recurrent patients,50.0% were in port,18.7% were marginal,and 31.3% were outside.CONCLUSION: The method of defining the target volume is reasonable for esophageal carcinoma,but further study should be warranted.


The traditional teaching-learning process which focuses on "teacher-directed pedagogical practices" has its own inherent drawbacks. Modern classroom technologies have presented educators the ease of using a variety of resources and tools for course delivery. Game-based learning (GBL) is an effective resource that can help teachers in engaging students having a wide variety of learning styles. It has the capability of enhancing creativity, problem solving, collaboration, achievement orientation, engagement, and a host of other related skills. Higher-education scenarios in Saudi Arabia (KSA), like many other countries, is replete with issues related to student participation and engagement. KSA, having advanced substantially with respect to technology adoption in education, has the required background to adapt GBL. A carefully implemented GBL programme will aid in ensuring student participation and engagement of indigenous students, which is the need of the hour. The present study analyses the possibility of utilizing GBL in dealing with the issues faced by the higher education sector in KSA.


10.1016/S0268-0033(03)00071-8 Farley, C. T., & Morgenroth, D. C. (1999). Leg stiffness primarily depends on ankle stiffness during human hopping. Journal of Biomechanics, 32(3), 267–273. doi:10.1016/ S0021-9290(98)00170-5 Powell, D. W., & Williams, D. B. (2018). Changes in vertical and joint stiffness in runners with advancing age. The Journal of Strength & Conditioning Research, 32(12), 3416–3422. Sinclair, J., Atkins, S., & Taylor, P. J. (2016). The effects of barefoot and shod running on limb and joint stiffness characteristics in recreational runners. Journal of Motor Behavior, 48(1), 79–85. doi:10.1080/00222895.2015. 1044493


An exponential growth posting on the web about the product reviews on social media, there has been a great deal of examination being done on sorting out the purchasing behaviors of the client. This paper depends on utilizing twitter for sentiment analysis to comprehend the customer purchasing behavior. There has been a significant increase in e-commerce, particularly in persons purchasing products on the internet. As a result, it becomes a fertile hotspot for opinion analysis and belief mining. In this investigation, we look at the problem of recognizing and anticipating a client's purchase goal for an item. The sentiment analysis helps to arrive at a more indisputable outcome. In this study, the support vector machine, naive Bayes, and logistic regression methods are investigated for understanding the customer's sentiment or opinion on a specific product. These strategies have been demonstrated to be genuinely for making predictions using the analysis models which examine the client's conclusion/sentiment the most precisely. The exactness for each machine learning algorithm will be analyzed and the calculation which is the most precise would be viewed as ideal.