text:
Blueberry Pound Cake
|Granulated sugar
|2 Cup (32 tbs)
|Light butter
|1⁄2 Cup (8 tbs)
|1/3 reduced fat cream cheese
|4 Ounce, softened (Half Of An 8-Ounce Block)
|3 Large
|Egg white
|1 Large
|All-purpose flour
|3 Cup (48 tbs), divided
|2 Cup (32 tbs) (Fresh Or Frozen)
|Baking powder
|1 Teaspoon
|Baking soda
|1⁄2 Teaspoon
|1⁄2 Teaspoon
|Low fat lemon yogurt
|8 Ounce (1 Carton)
|Vanilla extract
|2 Teaspoon
|Cooking spray
|1 Tablespoon
|Powdered sugar
|1⁄2 Cup (8 tbs)
|Lemon juice
|4 Teaspoon
1. Preheat oven to 350°.
2. Beat first 3 ingredients with a mixer at medium
speed until well blended (about 5 minutes). Add eggs and egg white, 1 at a time, beating well after each addition. Lightly spoon flour into dry measuring cups,- level with a knife. Combine 2 tablespoons flour and blueberries in a small bowl,- toss well. Combine remaining flour, baking powder, baking soda, and salt. Add flour mixture to sugar mixture alternately with yogurt, beginning and ending with flour mixture. Fold in blueberry mixture and vanilla,- pour batter into a 10-inch tube pan coated with cooking spray. Bake at 350° for 1 hour and 10 minutes or until a wooden pick inserted in center comes out clean.
3. Cool cake in pan on a wire rack 10 minutes,- remove from pan. Combine powdered sugar and juice in a small bowl,- drizzle over warm cake. Cut with a serrated knife.


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Lee Westwood makes huge eagle at British Open
More Golf: British Open | Leaderboard | Rankings | Schedule | Expert Picks | Equipment
Lee Westwood opened up his third round of the British Open on Saturday with some nice scoring.
He made this long eagle on the par-5 fifth hole to assume the lead from Tiger Woods and later made a short birdie on the par-3 No. 7. I love the double fist pump from Westwood after his eagle.
Westwood has played 61 majors without ever winning one -- that's the most of any active golfer.
There's a lot of golf left but Westwood looks incredibly strong right now and the crowd is willing him to the top of the leaderboard just like they did with Andy Murray at Wimbledon a couple weeks ago.
For more golf news, rumors and analysis, follow @EyeOnGolf and @KylePorterCBS on Twitter or Google+ and like us on Facebook.

subset: commoncrawl


text:
Originally written on Red Light District Hockey | Last updated 5/5/12
The Morning After:
Yesterday's results: Coyotes 1, Predators 0
RLD 3 stars of the night: 1. Mike Smith (25 saves, shutout) 2. Pekka Rinne (23 saves) 3. Shane Doan (game-winning goal) ---
Tonight's slate: Rangers @ Capitals, 12:30 ET, Game 4
#1 New York Rangers @ #7 Washington Capitals Game 4… 12:30 ET… TV: NBC, CBC
Series: 2-1 Rangers
Projected starting goaltenders: NYR- Henrik Lundqvist (Playoff stats: 6-4, 1.55 GAA) WAS- Braden Holtby (Playoff stats: 5-5, 1.94 GAA)
Injury report: NYR- Brandon Dubinsky (leg, out), Mats Zuccarello (wrist, out), Michael Sauer (concussion, out) WAS- Tomas Vokoun and Tom Poti (groin, out)
Game thoughts: Thankfully, the Rangers and Capitals have two full days off before resuming play. On Wednesday night, these two squads plowed through almost six full periods of hockey before Marian Gaborik got his first taste of playoff stardom. But none of that matters as both teams hit the reset button and prepare to once again face off.
Following their demoralizing Game 3 loss, the Capitals will need to bounce back. If they can't find a way to win on home ice, they will then be tasked with the up-hill battle of fending off elimination in front of a raucous Madison Square Garden crowd. Expect the Verizon Center to stay behind the Caps today, and to 'Rock the Red' as they hope for Alex Ovechkin and company can even the series.
Regardless, it feels like the Rangers have all the momentum. Prediction: Rangers 4, Capitals 1
Video of the day:
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Australia eye series sweep against France in Sydney
Last Updated: 20/06/14 6:22pm
Australia take on France in Sydney on Saturday aiming to make it a clean sweep in the three-Test series.
The Wallabies have already won the series thanks to a comprehensive 50-23 success in Brisbane followed by a much closer 6-0 win in Melbourne.
Les Bleus were much improved for that clash and Australia head coach Ewen McKenzie is expecting another stiff test for his side, whom he wants to keep on improving.
He said: "You're always working towards that complete game where you find the balance between your intentions in attack and an impenetrable defence, and it has been pleasing to see the squad highlight those characteristics at different points across the past six games.
"Our desire is to always play an up-tempo brand of rugby and we've now scored 23 tries in the past six games, an average of almost four a game.
"Our defence has also been steadily improving with each match, culminating with a shut-out of the French in our most recent match in Melbourne.
"The challenge and what we are always aiming for is to put both together and that will be our goal when we return to afternoon rugby in Sydney on Saturday."
In team news, Waratahs lock Will Skelton will make his debut in one of two changes made to the Australian starting line-up.
The 22-year-old is given his chance ahead of James Horwill and is joined in the pack by Wycliff Palu, with the 'Tahs No 8 having recovered from an ankle injury to replace Ben McCalman.
McKenzie has also tweaked his bench, with Scott Sio and Rob Horne coming into the squad.
France also make two changes to their starting line-up, with versatile back Hugo Bonneval and flanker Fulgence Ouedraogo both recalled.
Bonneval, who started at full-back in the first Test in Brisbane, replaces Maxime Medard on the wing, while Ouedraogo gets the nod as openside flanker, with Yannick Nyanga dropping to the bench.
Australia: 15 Folau, 14 Ashley-Cooper, 13 Kuridrani, 12 Toomua, 11 Cummins, 10 Foley, 9 White, 1 Slipper, 2 Polota-Nau, 3 Kepu, 4 Simmons, 5 Skelton, 6 Fardy, 7 Hooper (capt), 8 Palu.
Replacements: 16 Charles, 17 Sio, 18 Weeks, 19 Horwill, 20 McCalman, 21 Phipps, 22 Beale, 23 Horne.
France: 15 Dulin, 14 Huget, 13 Bastareaud, 12 Fofana, 11 Bonneval, 10 Tales, 9 Parra, 1 Menini, 2 Guirado, 3 Slimani, 4 Flanquart, 5 Maestri, 6 Dusautoir (capt), 7 Ouedraogo, 8 Chouly.
Replacements: 16 Tolofua, 17 Debaty, 18 Mas, 19 Le Roux, 20 Picamoles, 21 Nyanga, 22 Machenaud, 23 Lamerat.
Watch Australia v France live on Sky Sports 1HD at 6am on Saturday.
International Match
Sat 11th Jul
South Africa0 - 0World XV
Sat 8th Aug
Wales0 - 0Ireland
Sat 15th Aug
Argentina0 - 0South Africa
New Zealand0 - 0Australia
Ireland0 - 0Scotland
England0 - 0France
Sat 22nd Aug
Italy0 - 0Scotland
France0 - 0England
Sat 29th Aug
Ireland0 - 0Wales
Scotland0 - 0Italy
Sat 5th Sep
France0 - 0Scotland
England0 - 0Ireland
Wales0 - 0Italy
France tour of Australia 2014
Skelton handed Wallabies debut
Will Skelton will make his Australia debut in Saturday's third and final Test against France in Sydney.
Two changes for France
France coach Philippe Saint-Andre has made just two changes to his line-up for Saturday's final Test against Australia.
Australia narrowly edge France
Bernard Foley and Nic White kicked penalties as Australia beat France 6-0 in the second Test to win the series.


text:
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Rated 4 out of 5 by atena from Sandals Wedge Not all the wedge sandals run the same size... I bought two wedge sandals with different heights and the sizes were different... The size that fit okay for 2.5 inches heights was 36 USA 5 EUR 38 (my size is 7 in USA). The other size that was incorrect for 1.5 inches heights was the same size 36 USA 5 EUR 38 but this sandal runs smaller than the other one... I will order 7.5 hoping that this time the 1.5 inches heights will fit...
Date published: 2014-12-19
Rated 5 out of 5 by Cherry from I always bought ur product there one time I bought two pair but the leaves is easy to break.the style and appearance of the product is excellent.ihad bought one pair again recently .i gather the product will be more stability.
Date published: 2014-06-03


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text:
Mass. war units honored at State House ceremony
(Boston Globe) Military units from Massachusetts that served in the Iraq and Afghanistan wars are being honored at the State House.
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text:
|Table of Contents
|Vol. 33, 2014
|Section title:
Stroke Subtypes and Interventional Studies for Transient Ischemic AttackLavallée P. · Amarenco P.
INSERM U-698, Department of Neurology and Stroke Center, AP-HP, Bichat-Claude Bernard Hospital, University Paris Diderot, Sorbonne Paris Cité, Paris, France
Published online: 10/11/2013
Cover Date: 2014
Number of Print Pages: 12
Number of Figures: 0
Number of Tables: 0
ISBN: 978-3-318-02458-6 (Print)
eISBN: 978-3-318-02459-3 (Online)
Transient ischemic attack (TIA) is the most important risk factor for ischemic stroke. The risk is the highest in the first hours after symptom onset, and treatment must be initiated in emergency. In the acute phase, antithrombotic agent is probably the most important treatment, but it is not excluded that lipid-lowering agents and/or antihypertensive drugs are also important. For current guidelines, monotherapy of antiplatelet agent remains the gold standard in emergency. However, most recent data and meta-analysis support a combination therapy of clopidogrel and aspirin. Data on treatment in the very acute phase of TIA in the different etiologic stroke subtypes are also lacking especially for cardioembolic stroke and the potential benefit of anticoagulant. Long-term prevention mainly derived from large trials, in which TIA and minor stroke patients have constituted the largest part. Patients with non-cardioembolic stroke must be treated with antiplatelet agent in monotherapy, and dual antiplatelet therapy such as clopidogrel plus aspirin should be avoided, particularly in lacunar strokes, whereas anticoagulants are the treatment of choice for patients with cardioembolic stroke. Major advances concerning stroke prevention in patients with atrial fibrillation have emerged with new oral anticoagulant agents that are as effective as vitamin K antagonists and safer, especially with regard to the risk of intracranial hemorrhage. At variance with moderate and severe cerebral infarction, oral anticoagulants can be initiated without delay in TIA patients. Left atrial appendage closure seems to be a promising treatment in patients ineligible for anticoagulation. Aggressive management of vascular risk factors, including blood pressure as low as 130/80 mm Hg, intensive statin treatment, smoking cessation and diabetes control, also plays a major role in the prevention of vascular event.
© 2014 S. Karger AG, Basel
Published online: October 11, 2013
Number of Print Pages : 12
Number of Figures : 0, Number of Tables : 0, Number of References : 49
Book Serie: Frontiers of Neurology and Neuroscience, Vol. 33, Year 2014 ISSN: 1660-4431 (Print), eISSN: 1662-2804 (Online)
For additional information:
Book Title: TIA as Acute Cerebrovascular Syndrome
Editor(s): Uchiyama S, Amarenco P, Minematsu K, Wong KSL (eds)
For additional information:
Published online: 10/11/2013
Cover Date: 2014
Number of Print Pages: 12
Number of Figures: 0
Number of Tables: 0
ISBN: 978-3-318-02458-6 (Print)
eISBN: 978-3-318-02459-3 (Online)


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text:
Previous Cartoon | Next Cartoon
MarginsMargins (2007) by Dave Koch
This page has been viewed 11 times this month, and 278 times total.
Additional Crew:
- Mentoring Director: Torill Kove.
- Sound Design: Luigi Allemano.
- Musicians: Luigi Allemano, Michael Bérard, Sheila Hannigan, John Sadowy, Heather Schnarr.
- Sound Recording: Geoffrey Mitchell, Luigi Allemano, Shelley Craig, Luc Léger, Sylvain Cajelais.
- Mixer: Geoffrey Mitchell, Luigi Allemano, Shelley Craig, Luc Léger, Sylvain Cajelais.
- Foley Sound: Karla Baumgardner.
- Technical Coordinator: Julie Laperrière.
- Off-Line Editor: Carrie Haber.
- On-Line Editor: David Oxilia.
- Editing Technician: Ochelle Greenidge.
- Digital Imaging: Randall Finnerty, Susan Gourley, Louis-André Fortin.
- Marketing: Mia Desroches, Melissa Wheeler.
- Administration: Gisèle Guilbault, Rosalina Di Sario.
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Cartoon Summary:
Margins was inspired by an interest in the relationship between social spaces and taboos that surround mental illness and other forms of marginalization. The film... (more)
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text:
Estranged: Act I
Steam Achievements
Achievement Description Cat Lover Watch the video of the cat. Estranged in the Dark Finish the game without picking up the flashlight. Evening News Rudely interrupt the evening news. Houdini Don't escape the chair. Marksman Score 15 or more points in the shooting gallery. More than Shipwrecked Finish the game. Power Conserver Turn off the lamp in Redton Nature Reserve. Vendaholic Empty all vending machines. Water Collector Take John's bucket to the end of the game.
Contributed By: KeyBlade999.
Know Something We Don't?
You can submit new cheat codes for this game using our Cheat Submission Form.
Have We Been Fooled?
If you see a non-working or fake code in the list above, let us know by using our Problem Submission Form.


text:
We are the candy machine superstore! Gumball.com offers an incredible assortment of candy vending machines for both professional and personal-use. We have everything from 1 head personal machines to 6 head racks for professional vending in small spaces. Choose your color, size, number of heads, style, all the choices are yours.
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text:
POV | Off And Running - Clip 1 | PBS
Duration: 03:56
Program: POV #2311
In this clip from "Off and Running," Avery writes a letter to her birth mother hoping to receive on in return. She fears she will not, and her parents and siblings help her feel reassured about her decision.Tags:
POV | Off And Running - Clip 3... (#2311)
Avery has dinner with her new friends and starts to identify more with her black identity. 04:34
POV | Off and Running - Clip 2... (#2311)
Avery meets up with friends and describes her new high school. 01:53
POV | Off And Running - Clip 4... (#2311)
Avery leaves home after too much strain is put on her relationship with her parents. 04:44
POV | Behind the Lens: Off and... (#2311)
Nicole Opper and Sharese Bullock talk about the making of "Off and Running" 10:38
POV | Off and Running | Rafi's... (#2311)
In this bonus scene from POV's Off and Running, Avery and Rafi, two siblings who are both adopted, talk about Rafi's... 02:36
POV | Off and Running | Your... (#2311)
In this behind-the-scenes look at OFF AND RUNNING, the film's composer, Daniel Bernard Roumain (referred to here... 07:08
POV | Off and Running |... (#2311)
Off and Running tells the story of Brooklyn teenager Avery, a track star with a bright future. She is the adopted... 01:32
POV | Off and Running | Extended... (#2311)
Off and Running tells the story of Brooklyn teenager Avery, a track star with a bright future. She is the adopted... 02:36
POV | Trailer - Off and Running... (#2311)
An American Coming of Age Story 02:36
POV | Short Cuts | Six Weeks | PBS (#2408)
Full Program: A mother makes her irreversible decision to give her baby up for adoption. 18:49
POV | Wo Ai Ni (I Love You)... (#2310)
Donna Sadowsky, featured in the POV documentary "Wo Ai Ni (I Love You) Mommy " discusses the film and the important... 01:44
POV | In the Matter of Cha... (#2312)
Filmmaker Deann Liem Borshay talks about her birth mother's history. 02:08
POV | Wo Ai Ni Mommy - Clip 1 | PBS (#2310)
Fang Sui Yong meets her new adoptive mother for the first time. 05:29
POV | Wo Ai Ni Mommy - Clip 2 | PBS (#2310)
Faith tries to learn English with her new mother. 03:50
POV | Wo Ai Ni Mommy - Clip 3 | PBS (#2310)
Faith becomes frustrated with trying to adjust to life with a new family in America. 05:08
POV | StoryCorps Shorts: Always a...
Full Program: On the morning of 9/11, a man calls his ex-wife from one of the towers to say goodbye. 03:34
POV | Behind the Lens - Wo Ai... (#2310)
Filmmaker Stephanie Wang-Breal talks about the making of "Wo Ai Ni (I Love You) Mommy." 12:06
POV | Wo Ai Ni (I Love You)... (#2310)
What is it like to be torn from your Chinese foster family, put on a plane with strangers and wake up in a new... 01:29
POV | Steam of Life | A... (#2407)
A former military man releases his emotions about his mother's death. 03:02
- Watch more video from this program
Post Date: May 20, 2011


text:
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A screensaver method and apparatus provides a communication system for a computer which allows a visitor to an office or workspace to leave an electronic message. A screensaver program is installed on a personal computer which provides a dialogue box on the display screen after a predetermined period of inactivity. The dialogue box includes areas for a computer user to provide instructions for visitors to the office to enter messages as well as places for the visitor to, through use of the mouse and keyboard, enter and transmit an e-mail message for the computer user. Once the message has been entered and the user transmits, the screensaver communications program converts the entered message and other information to a predetermined format and transmits it to the assigned destination address. The computer user who was absent may then upon return, remove the dialogue box from the screen and access the e-mail message.
1. A screen saver communications system for use in a computing device which is connectable to a data network comprising:
a display graphic which is presented on a display monitor after a predetermined period of inactivity for the computing device and which may be removed upon performance of a predetermined action, said display graphic including:
at least one dialogue box in which an alphanumeric message may be typed through use of a keyboard and mouse for the computing device; and
an activation button located proximate to the at least one dialogue box which provides for further processing of the alphanumeric message; and
an E-mail processing module which upon selection of the activation button, transmits the alphanumeric message to a predetermined E-mail address over the data network.
2. The system of claim 1 wherein the computing device is a personal computer and the data network is comprised of at least one of: the world wide web or a local area network.
3. The system of claim 1 wherein the predetermined E-mail address is associated with computing device on which the alphanumeric message was entered.
4. The system of claim 1 wherein the display graphic is programmed to move about the display screen at predetermined intervals.
5. The system of claim 1 wherein the display graphic may be removed from the display through selection of a preprogrammed key on the keyboard.
6. The system of claim 1 wherein the E-mail module automatically formats the alphanumeric message in a predetermined format for transmission to the predetermined E-mail address.
7. The system of claim 5 wherein password protection is provided for the computing device through display of a password dialog box upon depression of the preprogrammed key, where a predetermined password must be entered into the password dialogue box to access applications in the computing device.
8. The system of claim 1 wherein the E-mail processing module is adapted to receive and display automated return E-mails in response to the transmission of the alphanumeric message to a predetermined E-mail address.
9. The system of claim 1 wherein no connection to the data network is established and the alphanumeric message typed into the dialog box is stored in an accessible file in a memory for the computing device.
10. The system of claim 1 further including a display for entering custom information which may include at least one of: system activation and deactivation, period of inactivity before the system is activated, default E-mail address, message for visitors, and activation and deactivation of vacation mode.
11. A method of generating and transmitting an E-mail message from a computing device connected to a data network, comprising the steps of:
providing a display graphic which appears on a display screen for the computer after a predetermined period of inactivity;
displaying at least one dialogue box within the display graphic in which an alphanumeric message may be entered;
detecting selection of an activation button within the display graphic and converting the alphanumeric message entered into the at least one alphanumeric message to an E-mail message to be transmitted to a predetermined address; and
transmitting the E-mail message via the data network to the predetermined E-mail address.
12. The method of claim 11 wherein display graphic is part of a screen saver program which appears on the display screen after a predetermined period of inactivity of the computing device.
13. The method of claim 12 further comprising the step of moving the display graphic to different location on the display screen at predetermined intervals.
14. The method of claim 11 further comprising the step of deactivating the display graphic through selection of a predetermined key on the keyboard.
15. The method of claim 14 further comprising the step of displaying a password dialogue box upon selection of the predetermined key, and upon detection of the entry of a predetermined password in the password dialogue box, providing access to application in the computing device.
16. The method of claim 11 further comprising the step of detecting and displaying contents of an automated return E-mail message.
17. The method of claim 11 wherein if a connection to a data network is not established, the alphanumeric message is stored in an accessible file in a memory for the computer.
18. The method of claim 12 wherein a screen display is presented for entering custom information, the custom information includes at least one of: activating or deactivating the screensaver program, entering a period of activating before the screensaver program is activated, entering a default email address, entering a message which will be read by visitors, and activating and deactivation of a vacation mode.
The invention described herein relates to a method and apparatus for transmitting e-mail messages, and more particularly to transmitting e-mail messages through use of a screensaver program.
Currently, a number of different modes exist for people to communicate if they are not in the physical presence of the other person. The modes of communications may e-mail, fax, electronic pages, telephonic communications (voice), or even the written letter. In the office environment, a person may employ any of the above mentioned modes to communicate with another party, however in the situation where a person physically visits the workspace of another, and finds that the person they intended to visit is not present, the available means for leaving a message may be limited. One way to leave a message may be to find a pen and piece of paper and write a note. However if the visitor doesn't possess a pen or paper, or feels uncomfortable looking through the workspace of another in order to find these items, this may not be a practical way to leave a message. Further, there is a chance the message may get lost in other papers in the office or workspace.
A business tool which is located in most offices and workspaces and may be used for communications purposes is the personal computer. A personal computer with a network connection may be used to send and receive e-mail messages in addition to a number of other business functions. Because the replacement or repair of computer components may be expensive, various devices have been developed in order to extend the life of the components of a computer. One device in particular is the screensaver which is employed to extend the life of a display monitor for a computer. Screensavers usually activate after a predetermined period of inactivity of the computer, and usually generate an image which moves about the display screen in order to avoid burn in of an image into the screen.
The inventor has recognized that in situations where a person visits an office or workspace of another, and finds that the person is absent, the computer located in the office or workspace, which includes a connection to a local network, may be employed to transmit a message to the absent party. Further, the inventor has recognized that such a messaging feature may be incorporated into a screensaver program employed by the computer.
The screensaver messaging system described herein may be incorporated into the operating system for a computer device, such as a personal computer. Included in the personal computer may be a central processing unit, a memory, a display as well as user input devices such as a keyboard and a mouse.
Included in the memory is a screensaver communications program. Part of the screensaver program is a display graphic for a dialogue box which may be displayed on a computer screen after a predetermined period of inactivity for the computer. The dialogue box may include designated areas for typing in information such as a title for the message, a name of a person leaving the message, as well as the message itself. The dialogue box may also be displayed for typing in a password such that the computer user may deactivate the screensaver and resume normal functions for the computer. Further, a hot key may be assigned on the keyboard for selective activation and deactivation of the screensaver function.
A connection may be provided between the screensaver program and the data network. E-mail functionality is incorporated into the program, and through use of this, e-mail messages with a destination address may be transmitted by the screensaver program over the network. The screensaver program further includes the functionality to convert alpha-numeric messages typed in the dialogue box to the appropriate format for transmission.
In operation, the screensaver communications program may first be installed on the personal computer. Upon installation, the operator of the computer may input various custom features for operation of the screensaver and the transmission of messages. The computer user may provide a default e-mail address to which all messages entered into the dialogue box will be transmitted. In one aspect of the invention this will be the e-mail address of the user of the computer. Other options which the computer user may input include written instructions which will appear in the dialogue box for persons wishing to leave a message, the length of time before the screensaver program actuates and the dialogue box appears on the screen, and whether the screensaver functions include password protection for the computer.
Once in the operational mode, and after a predetermined period of activity for the computer, the dialogue box will appear on the screen. In one aspect of the invention, the dialogue box will periodically move to different positions on the screen as is typical for a screensaver program. At the option of the computer user, instructions for leaving a message may appear in the dialogue box. Also included with the dialogue box may be areas to enter a name for the visitor, title for a message, a message, as well as a return phone number or E-mail address. Upon viewing the dialogue box, the visitor may type in a title and message and upon selection of a transmit or enter key, transmit the e-mail message to the displayed address. A button may also be provided as part of the dialogue box for canceling the entry and transmission of the message.
Once transmission of the message has been selected, the system formats the e-mail message. If the subject line is blank, a default message subject may be inserted. Further, a priority may also be selected for the message. With regards to the formatting of the message, the screensaver program may also include such information as the time of day in which the message was created and transmitted. The message is then transmitted to the E-mail address programmed in by the computer user.
When the computer user returns and wishes to operate the computer, a special hot key may be selected which automatically clears the screensaver dialogue box, or it may present a password dialogue box which requires the entry of a password before access is granted to the other applications in the computer.
In another aspect of the invention, the system may include a screen display through which a computer user may interact with to customize the operation of the system. Through this display a computer user may turn the program on or off, set a period of inactivity before the system is activated, enter a default E-mail address to direct all messages to, as well as enter a message which all visitors will read.
In yet another aspect of the invention, the screensaver messaging system employed by the computer user may be used in conjunction with an automatic reply function. If a visitor to the computer transmits an e-mail message to the computer user using the screensaver messaging system, the computer user may have programmed the system such that an automated e-mail is returned to the screen from which the message was sent, and this message may contain information regarding the whereabouts and time of return of the computer user.
FIG. 1 discloses a system diagram for a computer which includes the screensaver messaging system.
FIG. 2 discloses a dialogue box which may be disclosed on a computer screen.
FIG. 3 discloses an example of a dialogue box which includes a sample message and sample e-mail address.
FIG. 4 discloses a dialogue box displayed when the screensaver messaging system is password protected.
FIG. 5 discloses an example of an automated reply e-mail which may appear on the computer screen after a message has been transmitted employing the screensaver messaging system.
FIG. 6 discloses a flow diagram which describes the operation of the screensaver messaging system.
Disclosed in FIG. 1 is a system diagram for a computing device, such as a personal computer, which may incorporate the screensaver communications system described herein. As is well-known, a personal computer is made up of a number of different components. The central processing unit (CPU) 10 includes all the electronic components employed to perform the various computations. Attached to the CPU is a computer display 12 which presents the information to be viewed to the computer user. This display may be a cathode ray tube (CRT), or liquid crystal display (LCD). Other devices in connection with the CPU include keyboard 14 and mouse 16 which are used to enter and manipulate data which appears on the computer display.
Components within the CPU include controller 22 which coordinates the data signals within the CPU and provides various computational functions. The display driver 20 acts as an interface between the controller and the computer display 12 and provides the necessary processing in order to present information on the computer display. The memory 26 includes all the stored data and programs employed by the computer and is accessible by the controller 20.
Included in the memory is the screensaver communications program 28. In order to provide for e-mail communications, an interface 24 is provided between the controller 22 and a data network 30 such as the WorldWide Web, or a local area network (LAN). This interface may be a computer modem which performs for telephonic communications, or may be a backbone connection to the LAN.
The screensaver messaging system stored in memory provides the functionality for a visitor who comes upon a computer in which the operator is not present to leave a message for the operator through use of an e-mail program. As is well-known, screensaver programs are employed to extend the life of the computer display. The longer that an image is displayed on one part of the display screen the greater chance that it will burn into the screen and permanently damage the component. Thus a screensaver program presents an image or series of images which move around the screen in order to avoid burn in.
As part of the screensaver program, the present invention provides the capability for a visitor to an unattended computer with a connection to a data network, to enter a message through a display graphic, or dialogue box, which appears on the display screen. The screensaver program includes the necessary protocols to convert the typed-in message to an e-mail message and transmit the information to the desired destination address.
In operation, before the system may be employed, the screensaver program is installed on the computer and is resident in the memory. Through the use of various dialogue boxes which may be selectively activated by the computer user, the operation of the screensaver program may be customized. The customization options may include setting the period of inactivity before the screensaver program activates, entering a designated address to which the e-mail messages will be transmitted, whether the screensaver will operate in a password protection mode and entering a default title for messages if one is not manually entered by a visitor. The system may further be programmed to include times and dates in the messages which are transmitted.
Disclosed in FIG. 2 is an example of a dialogue box which may appear on a computer display when the screensaver program is activated. After a predetermined amount of inactivity with regards to operations of the computer, the dialogue box will appear and according to the options entered by the computer user it may periodically move about the screen in order to avoid burn-in in a particular area of the display screen.
The dialogue box 40 includes a message area 41 in which the computer user has previously entered a message which is to be read by those visiting the computer user. Included therein may be instructions for typing and sending a message to the computer user as well as information to their whereabouts. The visitor may employ the keyboard and mouse to enter alphanumeric information in any of the boxes presented in dialogue area 41. Box 42 includes LAN area where the computer user may enter in a specific code or address which indicates that message was sent while in the screensaver mode. In dialogue box 44, a visitor may enter a return telephone number or e-mail address. In area 46, a visitor may enter a subject heading for a message to be entered, or the computer user can place a default subject heading which would indicate that the message was sent while the computer was in the screensaver mode.
With regards to typing a message, area 48 is provided and through use of the mouse and keyboard, the visitor may type in a message for the computer user. Finally, the send button 50 and cancel button 52 allows the visitor to either send or cancel the transmission of an e-mail message.
Disclosed in FIG. 3 is an example of a dialogue screen in which information has been provided by both the computer user and the visitor. As was discussed previously, in dialogue box 41 display a message on the computer user's whereabouts and instructions to leave a message. The visitor has typed a name and return contact information in boxes 42 and 44. As can be seen in boxes 46 and 48, the visitor wishes to schedule a "meeting" and has stopped by to inform the computer user about it.
An important consideration in employing the screensaver communications program described herein is that sufficient security be provided such that visitors who come upon the computer may enter and transmit a message to the computer user, but may not have further access to information and applications on the computer. One option to provide this type of security is to password protect access to the system. As described above, the screensaver dialogue box will appear on the display screen after a predetermined period of computer inactivity. In order for a computer user to remove the dialogue box and resume normal operations, a hot key may be programmed into the screensaver program which, when depressed on the keyboard, removes the dialogue box from the display screen. In one aspect of the invention, once the hot key is pressed, a dialogue box such as that shown in FIG. 4 may be presented to the computer user. Through use of the mouse and keyboard, the computer user may enter the appropriate password and once this is read by the system, access is granted to the computer system applications.
Once access is granted to the computer system the computer may active or deactivate a number of custom features relating to the use of the screensaver system. Disclosed in FIG. 5 is a display screen 60 which a system user may access in order to customize the operation of the system. One function is whether to turn the system on or off. By entering either "on" or "off" in dialog box 62, the system may be either activated or deactivated. The time period before the screensaver activates may be entered through dialog box 62.
As discussed above, when a visitor selects the submit button when viewing the data entry screen the information is transmitted to the computer user's E-mail address. This E-mail address, or any other desired E-mail address may be entered in dialog box 66. The message which the computer user wishes visitors to see may be entered through dialog box 68. Also, if the computer user wishes to activate the vacation mode this may be done through dialog box 70. If a computer user does activate the vacation mode, there may be a further query to enter a message which will be included in the automatic reply message.
Disclosed in FIGS. 6a and 6 b is a flowchart which describes in detail the operations performed by the screensaver communications program. As described above, the screensaver program also operates as a normal screensaver and monitors the activity of the computer user. After a predetermined amount of computer inactivity, the screen saver program activates, and a display graphic of a dialogue box for entering messages is displayed. If a hot key for activating the system exists, upon depression of this key or a sequence of keys, the dialogue box appears on the screen. The screensaver monitors the system until either of these events occur.
Once the dialogue box is displayed on the computer screen, an idle period occurs until either a visitor finishes typing in a message and presses the transmit key, or a preprogrammed hot key is depressed which clears the dialogue box from the computer screen. As is described above, if this hot key is depressed, a query may be presented to enter a password to resume normal operations of the computer system. If the correct password is entered, the dialogue box is removed and normal operations are resumed.
If while the dialogue box appears on the computer screen, and a visitor types in a message, upon depression of the transmission button, the program will convert the alphanumeric message typed in the dialogue box to the predetermined format for transmitting an e-mail. The program will also process information relating to the destination address for the e-mail, as well as information with regards to the origin of the message. As was described above, the computer user may customize the program to include any of this information. Once all the information has been processed and formatted for the appropriate protocol, it is transmitted via the network connection to the designated destination address.
A feature which may be incorporated into the screensaver communications system is the ability to receive and display E-mail messages. Many E-mail systems currently provide the functionality to immediately send a reply E-mail message to an E-mail address from which it has just received a message. This allows the computer user to inform another party of his or her whereabouts if the message is regarding a time sensitive issue. In the invention described herein, the screensaver program is adapted to receive and display the automatically returned messages. This allows the computer user to provide notification to every person who sends an E-mail or visits the office, as to the whereabouts and time of return of the computer user.
The present system may also be employed to provide messaging functionality in situations where the computer is not in connection with a data network. In this situation, the same interface screen as that disclosed in FIG. 2 is displayed on the computer screen. Once a visitor has entered the information in the dialog boxes and pressed the submit button, a file is created in a chosen directory in the memory of the computer. This file contains all the same information as that discussed above with regards to the E-mail messages. Upon return of the computer user and deactivation of the screen saver program this file may be located in memory and its contents displayed on the computer screen. A special notice may be provided on the screen to notify the computer user that a number of messages have been left.
The foregoing description of the present invention has been presented for purposes of illustration and description. Furthermore, the description is not intended to limit the invention to the form disclosed herein. Consequently, variations and modifications commensurate with the above teachings, and the skill or knowledge of the relevant are, within the scope of the present invention. The embodiments described hereinabove are further intended to explain best modes known for practicing the invention and to enable others skilled in the art to utilize the invention in such, or other, embodiments and with various modifications required by the particular applications or uses of the present invention. It is intended that the appended claims be construed to include alternative embodiments to the extent permitted by the prior art.
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Serve up reading system templates for epub2web epub reader
Provides reading system templates, single HTML file templates for viewing Epub content in the browser. These can be called selectively based on the type of Epub, type of content it carries, or as a fixed feature of a larger reading system
The design of this module is dependent on a few assumptions: the reading systems here are meant to be fast, compact, lightweight, and heavily optimized for single file usage. The configuration for particular epub content is meant to be injected into the template. All CSS, Javascript and graphical assets should be packaged within this file. Assets can be worked with in separate files but the final template must be a single html file, minified, with a single line on its own for configuration injection.


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Forget password?
Remember Me
The bear blew snuffling cross the porch, scratching down the wall And clawing at the baseboards where the meeker beings crawl "Let me in you silly man, I've waited far too long It's time to taste your body now, I'm weary of your song For five long years I've listened, most contented I'll admit But just this morning I awoke and had enough of it I think it's time I ate you, and that queer dog Charlie, too You're useless--it's been ages since you sang me something new"
He made the bear a promise, to shine up something big Brewed in "Murder, lust and loss and all that shit you dig I'll just filly fetch the others, collect 'em all back here It won't be long til there's a tale or 12 for you to hear If I falter you can eat them, spit their bones across the bog Just leave this busted woodsman and his bloated, snakebit dog" Quite intriguing thunk the bear, but wary just the same (His mother taught him not to smoke & never trust the lame)
"So tell me sorry woodsman, is that Sophie lass around? I think she sounds delicious, so savory pound for pound" "I'll say," spake the woodsman, "and I'll bring the miner, too He's a stringy bastard, but could be nice in stew And so many tasty others I could scare up for yr stores If you'll let me just get on with it, attending to my chores" So mountaintop to tarbox to a Scottish chapel dank Upon a haunted desktop with a dangermouse he drank
With a Christian and his johnny hot, he toiled in the know And smarted near the altar between weatherhead & beau In Bristol town with Adrian they gave that bear what for Spanking on the steely strings with bristles from a boar Then to the static they returned, to satisfy the beast To rescue Sweet Teresa from the devils of the east Just then his fucking brace gave out, hard wear begat this fall And so the famished, fetid bear began to eat them all
Sparklehorse Fact Sheet
Sparklehorse was conceived by a rabbit in Bremo Bluff, VA in February 1995.
Vivadixiesubmarietransmissionplot was released later that year. The press liked it. Some people bought it. Others didn't care for it much. Mark Linkous, it was decided, was mostly to blame. There was an accompanying instructional film that circulated in arty film circles. The band toured with Mazzy Star, Radiohead.
Good Morning Spider followed in 1999. It was the one with the silvery cover and a really cool song about birds.
It's A Wonderful Life was the name of the greener one released in 2001. It sold quite a lot for this kind of thing, almost 150,000 outside North America alone. North American sales figures are classified due to national security concerns.
Linkous produced A Camp debut for Nina Persson, which sold by the truckload in Sweden. It was never released in the U.S. on account of entirely different security concerns.
He also produced Daniel Johnston's Fear Yourself, and served as executive producer for the The Late Great Daniel Johnston, a tribute record many see as a threat to the security of all mankind.
The upcoming 2006 Sparklehorse release, Dreamt For Light Years I The Belly Of A Mountain, includes some bits with Dangermouse and a previously unreleased track with Tom Waits.
Sparklehorse music has been featured in many, many feature films, some of them not half bad.
Linkous and Dangermouse are planning a new, as yet unti


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Originally written on Pro Sports Daily | Last updated 12/6/12
CLEVELAND -- The Cleveland Cavaliers were playing without their starting backcourt on Wednesday night. They got no sympathy from the Chicago Bulls, who recorded their 10th consecutive win over the Cavs, 95-85, before an announced crowd of 17,893 at Quicken Loans Arena. The Cavs' last win in the series was March 19, 2010. The Central Division-leading Bulls (9-8) were playing without their starting backcourt of Derrick Rose and Richard Hamilton. However, that made no difference in the outcome of the game. "It's the NBA," Cavaliers coach Byron Scott said. "We've always been a no-excuse team. We won't cry about guys that aren't out there." The Cavs have a small margin for error with their top two scorers and playmakers out of the lineup. Kyrie Irving and Dion Waiters could be back sometime soon. "We have to play a darn near perfect game," Scott said. "I'm proud of our guys. We battled and played as hard as we can. The effort was there." Chicago received strong efforts from...
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My education at Lake State taught me not only the basics of exercise science and health and wellness but prepared me for my future research career. I became involved in national organizations, improved my networking skills to create working relationships, and ended up with an amazing paid internship that turned into a 3-year research professional position at the Medical College of Georgia in Augusta, GA. Now in graduate school pursuing a doctorate degree at Virginia Tech, I rely on the knowledge I acquired at Lake State and put it to practice daily while discussing health-related topics in class or conducting obesity and inflammation research in our laboratory.
Elaina Marinik
Exercise Science Alum,
Graduate Student,
Virginia Tech.
Julia Roque
Summer Camp Coordinator
Disclaimer: Any links to external web sites and/or non-Lake Superior State University information provided on university pages or returned from university web search engines are provided as a courtesy. They should not be construed as an endorsement by Lake Superior State University of the content or views of the linked materials.
For directory updates, complete and return this form to Human Resources.
Dereck Wonnacutt
Robotics and Computer Science
"Lake Superior State is the only robotics program of its kind in the country. I can work up any research or senior project idea with a professor or my advisor. I studied for a year in Japan through LSSU's connection with the Japan Center for Michigan Universities, and became fluent in Japanese. A Japanese company called Fanuc makes most of the robots in our lab. I'd like to roll my senior research project into a career with Fanuc that bridges the two countries and cultures."


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Silver Lake College Talent Show Set For April 15
"SLC Has Talent," a talent show featuring Silver Lake College students, faculty and staff, will be held at 7 p.m. April 15 at the Franciscan Center for Music Education and Performance, located on campus at 2406 S. Alverno Road. The event is free and open to the public. Judges will determine the top three prize winners.


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Alumni Chapter - Wisconsin
MSOE alumni from Wisconsin
MSOE Hub Help and Feedback
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Sales List
Welcome to the Sales List! In order to post something that you would like to sell, please create a Discussion. The discussion should include a description of your item and how much you are selling the item for. You will also need to choose an appropriate category (electronics, rentals, miscell...
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If you have ever enjoyed taking pictures, or always wanted to learn more about photography join us! We are a group of people who love photography and who love sharing our knowledge of photography. If you want to spend time with people who have such a passion, this is the group you are looking for...


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CS Source and my 5800
I have to say, Valve did a great job on the code for CS:source in regards to the last gen NV cards. I have a 6800GT at home that absolutely rocks the house at 455/1.16 At work I have basicly the same setup but use my trusty old 5800NU clocked at 520/1120. Suprisingly it does very well in CS:S. It gets in the 70's at 1024x768 although it takes a beating if AA or AF is used it runs great with trilinear. I think that even though it uses a dx8 path its very playable. Anyone else have an opinion?
Re: CS Source and my 5800
plays great on my 5900 i play at 1280x1024 2xAA 4xAF high settings and averages ~60fps. Now they just need some more maps ;)
Re: CS Source and my 5800
i had a 5800 ultra and i went to a 6800gt for source...it played fine but i wanted to play at 1280, 4x/8x max options:)
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A rotating impeller for stirring liquids contained in tanks. Strip-like blades of simple form radiate from a central hub, in swept-back configuration relative to the direction of rotation. The blades are angled relative to the hub so as to exert a forward and downward force upon the liquid as the impeller rotates, and the blade curvature is such that the area projected upon the liquid by the solid structure of the rotating blade is less than the corresponding area that would be projected by an otherwise similar blade in which imaginary straight lines connected all adjacent vertices, and any void areas lying within the boundaries of those imaginary lines had been filled in. The preferred arrangement of the blades is such that when the impeller is arranged with its axis vertical, curvature of each blade along its length is such that it extends away from the hub in a diminishing downward curve, reaches a lowest point, and then rises again before the blade tip is reached. In cross-section each blade will typically be straight and parallel-sided, but may also be slightly curved, of aerofoil section, etc.
1. An impeller comprising:
a hub, adapted to rotate in a predetermined direction about an axis of rotation;
a plurality of blades radiating symmetrically from said hub; each said blade being of elongated shape and having a longitudinal axis, the length dimension of said each blade having opposite first and second ends;
said first end of each said blade being attached to said hub, and said second end constituting the tip of each said blade;
each said blade being of substantially uniform cross-section throughout said length;
each blade extending from said hub in a direction wherein said longitudinal axis thereof extends at an angle to said axis of rotation of said hub;
in which said longitudinal axis is curved;
and in which each said blade is so disposed relative to said hub that said curved longitudinal axis results in said blade having a first and swept-back curvature relative to said predetermined direction of rotation of said hub and visible when said blade is viewed in a direction parallel to said axis of rotation, and a second curvature visible when said blade is viewed in a direction normal to a radius to said axis of rotation at the point where said blade radiates from said hub.
2. An impeller according to claim 1 in which each said blade is bent in a continuous curve along its said length.
3. An impeller according to claim 2 in which the curvature of the said continuous curve is uniform along said length.
4. An impeller according to claim 1 in which the said elongated shape of each said blade presents first and second opposite long edges of said shape each extending between said first and second ends, and in which said first and second opposite long edges are parallel and curved.
5. An impeller according to claim 1 in which the locus of said attachment of said first end of each said blade to said hub is substantially linear, said line being inclined to a plane intersecting the axis of said rotation of said hub at right angles, whereby if said impeller is rotated in said predetermined direction about a vertical axis said blades exert a forward and downward force upon any fluid which they contact.
6. An impeller according to claim 1 in which the orientation of said blades is such that when said impeller is arranged with its axis of said rotation vertical, and is viewed in elevation, said curvature of each blade along its said length is such that said blade extends away from said hub in a diminishing downward curve, reaches a lowest point, and then rises again before said blade tip is reached.
7. An impeller according to claim 6 in which said blade tips, and the locus of attachment of said first ends of said blades to said hub, lie at substantially the same horizontal level when said impeller is so viewed.
8. An impeller according to claim 1 in which each said blade is twisted along its length, in the manner of a marine propeller.
9. An impeller according to claim 1 in which said cross-section of each said blade is arcuate.
10. An impeller according to claim 1 in which said cross-section of said blade is of aerofoil shape.
This invention relates to rotatable impellers for stirring liquids contained in tanks, and to mixing apparatus comprising tanks fitted with such impellers. In typical industrial applications, liquid to be stirred is contained in a cylindrical tank arranged with its axis vertical, and the depth of the liquid is of the same order as the diameter of the tank. Stirring is effected by a rotating impeller immersed in the liquid, and mounted on a shaft co-axial with the tank. Typically the stirring takes place for one or both of two reasons. Firstly, the liquid may contain particles, which it is necessary to suspend and distribute homogeneously throughout the liquid. Secondly, air or other gas may be blown into the liquid, for instance through a perforated tube which is typically immersed in the liquid on the tube axis below the impeller, and it is necessary to achieve good dispersion of the gas within the liquid. The undesirable effect of gross rotation of the liquid within the tank by the rotating impeller is often inhibited by vertical baffles mounted at equal angular intevals around the inner surface of the cylindrical wall of the tank.
Three impellers, each now regularly in use for the commercial stirring of liquids, are illustrated in FIGS. 1A and 1B to 3 of the accompanying diagrammatic drawings. Each such FIG. shows a tank and the respective impeller in diagrammatic axial section, and FIGS. 1A, 1B and 2A, 2B also include a further underneath plan view of the impeller alone. The axial section gives an impression of the flow patterns that are set up when the impeller is mounted at the bottom end of a vertical shaft and rotated within a body of liquid contained in a cylindrical vessel.
FIG. 1 shows the kind of impeller usually known as a "disk turbine" or "Rushton impeller", comprising a circular disk 1 with six paddles 2 mounted at equal spacing around the periphery 3. Each paddle 2 is a plane rectangular metal sheet coplanar with the axis of the shaft 4 on which the disk is mounted, and extending both above and below the disks. In operation the dominant centrifugal action of the rotating paddles 2 throws the liquid out radially, generating the two circulation loops 5 and 6 within the liquid contained within a cylindrical vessel 7. The latter has a circular base 8 and a side wall 9, and vertical baffles 10 are mounted on the inner surface of the wall to inhibit gross rotation of the liquid by the impeller. Where the liquid contains particles, it is a drawback of this type of impeller that particle pick-up from close to the base 8 of the vessel is poor, because the circulation velocity in loop 6 close to the base is low. Also when gas is injected into the liquid, for instance through a sparging head 11 comprising a perforated ring 12 connected by radial feed conduits 13 to a vertical inlet pipe 14, the gas bubbles tend to enter the eye of the impeller because of both their buoyancy and the action of circulation loop 6; this gas then tends to form a gas cavity behind each paddle 2, so reducing the power transmitted to the liquid by that paddle. More generally, when any liquid is stirred by such a paddle intense local turbulence will be generated around the tips of the paddles in the region indicated by reference 15; this turbulence has the disadvantage of dissipating much of the input power. This disadvantage can be diminished by mounting the plane paddles 2 in sweepback fashion as at 2a, so that they lie at an acute angle to the tangent 16 to the periphery 3 instead of at right-angles.
The second form of known stirring impeller illustrated in FIG. 112A, 2B is a standard marine propeller 20, with the typical complement of three blades 21. The blades are of complex but well-known shape, designed to exert a screw action upon the liquid and to accelerate it in a downward direction, parallel to the axis of shaft 4. A single circulation loop 22 is therefore set up within the liquid, and high velocity in the lower part 23 of the loop between the impeller 20 and the base 8 promotes good particle pick-up where particles are present in the liquid. However, if gas is being introduced through sparging head 11, that gas tends to bypass much of the liquid because the strong loop 22 carries the bubbles both outwardly towards the wall 9, and then up that wall between baffles 10 and straight to the surface 24 of the liquid, because the circulation in the top part 25 of loop 22 is relatively weak so that bubbles tend to break the surface rather than remain within the loop 22.
In the pitched-bladed impeller 30 of FIG. 3, six plane strip-like blades 31 are mounted at equal angular intervals around the rim 32 of a rotor 33, from which they each extend radially outwards. The line along which the root of each blade is attached to the rim is inclined to the vertical, so that as the shaft 4 rotates in the direction of arrow 34 the forward face of each blade 31 is angled downwards. In operation the illustrated flow pattern therefore results; some turbulence in region 35, as in region 15 in FIG. 1, and two circulation loops 36 and 37 with a particularly vigorous downward and outward motion 38 at the start of loop 37, due to the angling of blades 31.
The present invention arises from the search for an impeller comparably simple in construction with those of FIGS. 1 and 3 but with improved performance in general, and in particular with less tendency to generate excessive turbulence immediately outboard of the tips of the blades or paddles, and with reduced energy requirement in order to achieve a pre-determined standard of mixing. In the course of the search, one factor that has become seen to be of significance is the effective area that is "swept" through the liquid by each blade or paddle as the impeller rotates. FIG. 4 is a diagrammatic radial section through one of the paddles 2 of the impeller of FIG. 1. Because the paddle is plane and rectangular, the area which it sweeps through the liquid as the impeller spins is simply the area (a�b) of the paddle itself. If the paddle does not lie at right-angles to the local tangent but is inclined to it, as at 2a in FIG. 1, the area which it sweeps is diminished, by multiplying the same paddle area (a�b) by the sine of the angle of the inclination. However, we have appreciated that if the blade has at least one curved side, either by being so formed or by being bent after formation or both, what is in effect an enhancement of the swept area can be obtained. In FIG. 5 the plane rectangular paddle 2 of FIG. 4 is replaced by a plane paddle 40 having four vertices A, B, C, D and fixed to disk 1 so as to be coplanar with the axis of shaft 4. Opposite sides AD and BC are straight and vertical while the other two opposite sides AB and CD are curved and parallel. The area actually swept by paddle 40 as disk 1 rotates is therefore the area of the four-sides plate ABCD itself, and will be referred to as the actual swept area. However, we have found that while the power required to drive an impeller with such paddles tends to be related to the actual swept area, the degree of mixing achieved tends to reflect the sum of that actual area and any further area that can be enclosed by joining adjacent vertices by a straight line instead of by the curved side of the solid figure. In FIG. 5, such a further area (shown shaded) is indicated by reference 41 and is of segmental shape, being bounded on one side by the curved side AB of the solid plate and on the other by the imaginary straight line 42 joining vertices A and B. In the following text, the sum of the actual swept area (in FIG. 5, the area of the four-sided plate ABCD) and such a further area (in FIG. 5, the shaded area 41) will be referred to as the total swept area. It will thus be apparent that the actual swept area represents the actual area projected upon the fluid by the solid structure of a rotating blade, while the total swept area represents the area projected by an otherwise similar blade in which imaginary lines connect all adjacent vertices, and any void area lying within the boundaries of those lines have been filled in.
According to the present invention an impeller comprises a plurality of blades or paddles radiating symmetrically from a rotatable hub, in which each blade is of elongated form and is curved along its length, one end of the length being attached to the hub and the other constituting the blade tip; in which the curvature of the blades gives them a swept-back configuration relative to the direction of rotation of the impeller; and in which the total swept area, swept by each blade, exceeds the actual swept area.
Each blade may be bent in a continuous curve along its length. Such curvature may be uniform throughout the length.
The two opposite long edges of the blade may be parallel, and may be either straight or curved.
Each blade may be attached to the hub along a line inclined to a plane which intersects the axis of rotation of the hub at right-angles, the arrangement being such that if the impeller is rotated about a vertical axis the blades exert a forward and downward force upon liquid within which the impeller is rotated.
The arrangement of the blades may be such that when the impeller is arranged with its axis of rotation vertical, and is viewed in elevation, the curvature of each blade along its length is such that it extends away from the hub in a diminishing downward curve, reaches a lowest point, and then rises again to some extent, preferably to the same extent, before the tip is reached.
The blades may contain further curvatures. For instance a blade may be twisted to some extent along its length, in the manner of a marine propeller. A blade may also be slightly curved, rather than straight, over its depth dimension: in use, some degree of hydrofoil effect may be set up by the reaction of such a blade with the fluid around it. The blades may be formed from sheet-form material and so be of uniform thickness throughout, but the invention also includes impellers with blades formed from material of non-uniform thickness, for instance material of a shallow aerofoil shape when the depth dimension is viewed in cross-section. The criterion should however be that the maximum thickness of the blade is very small compared with the depth, which in turn is small compared with the length.
The invention will now be described, by way of example, with reference to the following further figures of drawings in which:
FIGS. 1A, 1B, 2A, 2B and 3-5 are illustrations of prior art mixing impellers;
FIG. 6 is a perspective view of an impeller rotated about a vertical axis, taken from above;
FIG. 7 is another perspective view, but from underneath;
FIG. 8 is a plan view of one form of blade, when first cut from flat material;
FIG. 9 shows the same blade in elevation, when ready for attachment to the hub after bending about its long axis;
FIG. 10 is a diagrammatic view of the impeller in vertical elevation, and includes a part similar to the second parts of FIGS. 1 to 3, diagrammatically illustrating the flow pattern set up in use by an impeller as shown in FIGS. 6 to 9; and
FIG. 11 is an alternative diagrammatic illustration of how the shape of the blade of FIGS. 8 and 9 may be determined.
The impeller 49 of FIGS. 6 to 10 comprise six blades 50 extending outwardly at sixty-degree intervals from a hub 51. A central hole 52 in the hub receives shaft 4 to which the hub will be fixed by screw means shown diagrammatically at 53 in FIG. 6, and by which the impeller will be rotated in the direction of arrow 54 in the same way as the known impellers shown in FIGS. 1 to 3 and already described.
Each blade 50 is first stamped as a blank from flat metal sheet, to the four-sided shape shown in FIG. 8. Of the two pairs of opposite and parallel sides of this four-sided figure, one pair (55,56) are long and curved and the other pair (57,58) are short and straight. The imaginary line 59 will be referred to as the long axis of the blank, and the imaginary line 60 as one of the transverse axes--that is to say the axes related to the depth dimension of the blade--and because axis 59 is long compared with axis 60 the blank may be described as being elongated in shape. To convert it to the form required of one of the blades 50, the blank is bent along its long axis 59 as shown in FIG. 9. The short end 57 of the blade is the end welded, slotted or otherwise attached to the hub so that the locus of the meeting of the hub and blade is a line 61 (see FIGS. 6 and 10) which is slanted to the vertical so that the forward face 62 of each blade (examples of which are best seen in FIG. 7) is angled downwardly at about 45 degrees to the vertical. Because line 61 is necessarily curved, the short side 57 of the blank must of course be reshaped into a corresponding curve before the blade is actually fixed to the hub. Because the illustrated blades 50 are stamped from flat sheet and formed as described, the transverse axes 60 will be straight. However, the blades could as one alternative be slightly curved over their depth dimensions as indicated in outline at 68 in FIG. 6, giving rise to some degree of "hydrofoil" action as each blade moves through the surrounding fluid in use. As another alternative the invention includes not only blades of uniform thickness but also thin blades of non-uniform section, for instance the foil section indicated in outline at 69.
FIG. 10 shows best the relationship between the total and actual swept areas which are swept by the blades 50. In the enlarged detail of that FIG., showing the blade (50a) lying most nearly at right-angles to the direction from which the view is taken, it is clear that the actual swept area, represented by the structure of the blade itself which is shown shaded, is less than the total swept area which includes also the area above the top edge 55a of the blade but below the imaginary line 63 joining vertices 64 and 65 which preferably (and as shown) lie in the same horizontal plane. From this FIG. it is also apparent that due to the curvature of long axis 59 of the blade, and the angling of the line 61 along which the root of the blade is attached to the hub 51, each blade slopes downwardly away from its attachment to the hub 51 but reaches a lowest level (70, 71) and is rising again as the blade tip (short side 58) is approached. It will be noted that with such geometry the centre of gravity of the blade lies higher, and thus closer to the level of the root line 61, than would be the case if the blade sloped downwards continuously from root to tip, and thus promotes better mechanical balance and strength.
FIG. 10 also indicates the typical flow pattern which an impeller according to the invention sets up in use. Like the pitched-bladed impeller 30 of FIG. 3, impeller 49 sets up two strong and beneficial circulation loops 36 and 37. However, the curvature of each blade along its long axis 59 results in each blade being swept back in relation to the direction of rotation of the impeller which is indicated by arrow 54. In the case of the impeller actually illustrated in FIGS. 6 to 10, the extent of the sweepback is such that at the tip 58 of each blade the long axis 59 makes an angle α of about forty-five degrees to the radial line 66 joining that tip to the axis of shaft 4, as is best shown in FIG. 6. This sweepback has an advantage comparable to that of the alternative, angled arrangement of paddle (2a) in FIG. 1, namely that the reaction of the paddle against the fluid imparts to that fluid an element of motion that is not aligned with the motion of the blade itself, so reducing the absolute velocity relative to the container that is imparted to the fluid. This reduction of the absolute velocity reduces the dissipation of energy near the impeller--that is to say the energy wasted in regions 15 and 35 in FIGS. 1 and 3--so that more of the input power goes into the loops 36, 37 thus giving better mixing. In general the impeller illustrated in FIGS. 6 to 10 generates a combination of downward and radial motion appropriate for mixing. When gas is introduced to the vessel 7 of FIG. 10, for instance by sparge pipe 11 as before, the turbulent wake which formed behind each paddle or blade of the known impellers of FIGS. 1 and 3 is largely avoided; the shape and mounting of the blades of the impeller according to the invention promotes a smooth flow pattern over each blade so that when gas is injected below the impeller there is less tendency to form gas cavities behind the impeller blades. Compared with the ships's propeller shown in FIG. 2A, 2B, the impeller of FIGS. 6 to 10 has the potential advantages of better bubble distribution when gas is injected, due to greater radial liquid velocities in lops 36 and 37, and better particle distribution due to the combination of better upward liquid velocities near to the base of the tank, and higher radial velocities in the upper part of the tank at the crest of loop 36.
An experiment was performed to compare the blending efficiency of an impeller according to the invention, as shown in FIGS. 6 to 10, with that of the three known impellers shown in FIGS. 1 to 3 and also the modified version of FIG. 1 in which the paddles (2a) are swept back at forty-five degrees. The following dimensions were common to all five experiments:
tank diameter: 0.3 m
liquid depth: 0.3 m
impeller diameter (D): 0.1 m
height of impeller above bottom of tank: 0.1 m
and gross rotation of the fluid within the tank was inhibited by four vertical baffles 10, each of height 0.3 m and width 0.1 m, equally spaced around the inner face of the cylindrical side wall 9. In the experiments a tracer was injected into the liquid and the concentration of the tracer was measured as a function of time at a fixed point in the liquid. If stirring is continued indefinitely, ultimately the concentration reaches a steady value c when mixing is complete. A mixing time N.sub.θ is defined as the time taken to reach a concentration within the range 1.05 c to 0.95 c, i.e. a concentration when c varies from its ultimate value by no more than 5%. N.sub.θ is found to be constant for a given impeller/vessel combination, and its value is a measure of the effectiveness of the impeller, small values being better than large. The following table records not only N.sub.θ, and the energy (in Joules) expended in 10 seconds of operation using each impeller, but also the power number NP =P/ρN3 D5, P being the power to drive the impeller, ρ the liquid density and N the speed of rotation. For high values of Reynolds number ND2 /μ, μ being the liquid viscosity, the power number is constant. A low value of power number is desirable to minimise driving power.
______________________________________ mixing Power Energy in Joules time Number required for (N.sub.θ) (NP) 10 seconds mixing______________________________________1. Impeller of 42 5.5 33.22 FIG. 1 with 6 radial paddles as shown at 2.2. Impeller of 38.6 2.6 14.95 FIG. 1, with 6 swept-back paddles as shown at 2a.3. Marine propeller 52.6 0.80 11.65 (3 blades) as shown in FIG. 2.4. Pitched-bladed 41.2 1.2 8.38 impeller (6 blades) as shown in FIG. 3.5. Impeller according 33.5 1.16 4.16 to the invention (6 blades) as shown in FIGS. 6 to 10.______________________________________
The point at which tracer was introduced, the volume and concentration of the tracer and other relevant parameters were the same in all the experiments which gave rise to the results tabulated above: the type of impeller used was the only apparently significant variable. In these experiments the impeller according to the invention thus gave the best reading for mixing time, by far the best reading for energy consumption, and came a close second to the marine propeller of FIG. 2A, 2B on power number.
FIG. 11 illustrates the form of a blade as so far described by imagining it to be cut from a sheet metal tube 70 of diameter 0.7D, D being as before the diameter of the impeller. The blade is generated by cutting out a piece of the tube wall, double hatched in FIG. 11. The boundary of the blade is as before defined by the four lines AB, BC, CD and DA. AB and CD are straight lines parallel to the axis 71 of the tube, and 0.35D apart. The curve AD is generated by the intersection of an imaginary cylinder 72 of radius 0.475D with the tube 70, the axis 73 of cylinder 72 being at right angles to axis 71. The curve BC is generated in the same way as the curve AD, but the intersecting cylinder 72 is displaced downwards, in the elevation by a distance of 0.2D. The curvature of the long axis 59 is of course now the curvature (radius 0.35D) of the wall of tube 70.
The effect on impeller performance of the curvatures just discussed will now be considered. The curvature of the long axis 59 of the blade is altered by increasing or decreasing the radius of tube 70 of FIG. 11, and affects angle α of FIG. 6. Reducing the radius increases α which reduces the strength of the circulation loops 36 and 37 in FIG. 10. Increasing the radius decreases α and leads to high swirl, i.e. rotation of the liquid around the axis of the impeller in its direction of rotation: such swirl dissipates energy by impact on the baffles 10 FIG. 1. A suitable compromise between the conflicting requirements of (i) strong circulation loops, and (ii) low swirl, is obtained by having α about 45�.
As to the curvatures of the long blade sides 55 and 56, the "total swept area" as described and illustrated earlier in this specification is also represented by the sum of the single hatched and double hatched areas in FIG. 11. When the blades are mounted on the hub, the liquid stirred by motion of the blades is proportional to the "total swept area" because liquid passing through the single hatched area subsequently passes over the blade near the corner D, D being at the outer periphery when the blade is mounted on the hub.
As already noted, mixing effect is approximately proportional to the total swept area, whereas the power is approximately proportional to the swept area, i.e. the double hatched are on FIG. 11. From this it follows that it is desirable to maximise the total swept area by increasing the curvatures 55 and 56, say by reducing the radius of intersecting cylinder 72 to 0.4D or 0.3D. However, if the curves AD and BC are too strongly curved, i.e. have too small a radius of curvature, this leads to an unsatisfactory design: the centre of gravity of the blades could be below the hub 51. Also the lowest point of curve BC will be much below the hub level, which will increase the circulation strength of the loop 37 and reduce the circulation strength of loop 36 of FIG. 10, adversely affecting the mixing performance. A suitable compromise is to choose the radius of curvature of blade sides 55 and 56 (AD and BC in FIG. 11) so that, when viewed from a point on the hub axis 67 (FIG. 6), those sides appear as approximately straight lines.
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Originally written on Blue Seat Blogs | Last updated 3/19/12
Two smart periods and one sloppy period equals Rangers win. It wasn't perfect but the Rangers got what they deserved out of the game as they beat the Devils 4-2. They were the better team throughout and ten minutes aside in the second controlled play, were defensively solid and could have scored more if not for some sharp goaltending by Brodeur. On to the notes from the game… First Period Perhaps they were inevitable, but if ever a series of fights can be a seminal moment for a team then maybe the melee at the start of this game was such a moment for the Rangers. They admitted they didn't match the Devils the last time out but three fights to kick this game off set the tone of the first period for the Rangers. Rupp and Boulton (who has no right to be in the league), Prust and Janssen and a highly entertaining Bickel and Carter scrap got the game going immediately with the crowd lapping it up. The Rangers dominated to begin. Their physicality, speed, forecheck and desire to win every...
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