Cell Definition and 956 Threads

Cell is a multi-core microprocessor microarchitecture that combines a general-purpose PowerPC core of modest performance with streamlined coprocessing elements which greatly accelerate multimedia and vector processing applications, as well as many other forms of dedicated computation.It was developed by Sony, Toshiba, and IBM, an alliance known as "STI". The architectural design and first implementation were carried out at the STI Design Center in Austin, Texas over a four-year period beginning March 2001 on a budget reported by Sony as approaching US$400 million. Cell is shorthand for Cell Broadband Engine Architecture, commonly abbreviated CBEA in full or Cell BE in part.
The first major commercial application of Cell was in Sony's PlayStation 3 game console, released in 2006. In May 2008, the Cell-based IBM Roadrunner supercomputer became the first TOP500 LINPACK sustained 1.0 petaflops system. Mercury Computer Systems also developed designs based on the Cell.
The Cell architecture includes a memory coherence architecture that emphasizes power efficiency, prioritizes bandwidth over low latency, and favors peak computational throughput over simplicity of program code. For these reasons, Cell is widely regarded as a challenging environment for software development. IBM provides a Linux-based development platform to help developers program for Cell chips.

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  1. G

    Calculate the potential (voltage) of a standard cell

    Calculate the potential (voltage) of a standard cell with these half-cell reactions: Ni(s) -----> Ni2+ + 2 e- 2 e- + Cl2(g) -----> 2 Cl- :cry:
  2. K

    Is there a cell phone with a call recorder?

    This is a bit unrelated, but I think this should go in this section here. You are all pretty savvy on this forum, so I'm wondering if you all know of any cell phones which allow you to record entire conversations?
  3. S

    News Do you agree with the legalization of stem cell research in New South Wales?

    ok... here is something interesting. I take it most of you haven't heard, but the most populated state in australia (New South Wales) has just passed a bill (act of parliament) through the lower house to legalise stem cell research in the state. Do you agree or disagree with this...
  4. T

    Understanding Solar Cell Efficiency and Production: What You Need to Know

    Hey, I recently read that they made a 40% efficient solar cell... what does this actually mean? How do they calculate this efficiency... and how much power do these cells actually produce? and what's with the mono and poly crystalline titles that they get? what does that mean?? Any info...
  5. P

    Help with a Hydrogen Fuel cell presentation

    I need help thinking of ideas for slides. I have "How it works", "benefits", "challenges", "Physics behind it", "Hydrogen vehicles", "Why Hydrogen", "What is a fuel cell", "Uses", "efficiency", "Fuel cell configurations". I can't think of anything else.
  6. C

    Grade 9 Geo Proj Stem Cell Help

    1. Homework Statement I have a class in grade nine geography and as our final assignment we have to pick a topic on things that effect Canada. I picked stem cell research, got my info, but I have no idea of what to make the model. I tried thinking of everything, I'm in academic and for me to...
  7. V

    Load cell question for the experts

    Hello, I must first say that I think this is an excellent forum, I have found some usefull info in the past.(thanks) The question I have today is about loadcells, I am working in my companys R&D department I am trying to set up a pair of load cells to measure tension. The load cells I am...
  8. C

    Chem 2, Cell diagrams for oxidation/reduction reactions

    Homework Statement All I'm trying to do is translate the cell diagram below into a into a an equation so I can determine which is the anode and which is the cathode. Here is the cell diagram. I know how to balance it, I just want to make sure I'm putting reactants and products on their...
  9. S

    Wireless Cell Phone Charging: The Revolution is Coming!

    i read about a month ago that cell phone charging is about to be 'revolutionized.' Apparently, cell phones of the near future will have a wireless charging system where you plug a radio transmitter into the wall, and the cell phone receives the signal and uses it to charge it's batteries. My...
  10. B

    How Strong is the Electric Field Across a Cell Membrane?

    The inner and outer surfaces of a cell membrane carry a negative and positive charge, respectively. Because of these charges, a potential difference of about 0.0730 V exists across the membrane. The thickness of the membrane is 8.22E-9 m. What is the magnitude of the electric field in the...
  11. J

    Peltier Cell Help: Exploring 92W vs. 38W Efficiency

    A while back, I purchased a 38W peltier cell on ebay. It wasn't powerful enough, so I'm looking at something along the lines of a 92W. I noticed, however that my 38W and the 92W have the same dimensions and the same number of junctions. Also, dT of the 92W is only 1 degree C above the 38W...
  12. K

    Which US cell carrier has the shaking hands as a logo?

    Just read the title. That's all I want to know.
  13. M

    Why does the internal resistance of a cell increase as it ages?

    I want to understand that why does the internal resistance of a cell/battery goes on increasing as the cell gets older. What happens inside the cell that causes the internal resistance to increase gradually? Thanks.
  14. J

    High voltage batteries, not 2V per cell

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  15. T

    Power Density of Solar Cell Question

    I have this homework question I can't quite figure out. Any help is greatly appreciated. In direct sunlight, solar cells have a power density of approximately 15 mW/cm2. Suppose a sensor node consumes on average 10mW of power. How large of a solar cell array is needed to meet this...
  16. N

    Factors Affecting Galvanic Cell Voltage

    Hi Guys, a quick answer will be great! Just wanting to know, what are some of the factors that affect the voltage of a galvanic cell?
  17. B

    What is the current in the cell during that period?

    Homework Statement If 3.50 x 10^-3 kg of gold is deposited on the negative electrode of an electrolytic cell in a period of 2.99 h, what is the current in the cell during that period? Assume that the gold ions carry one elementary unit of positive charge. (A) Homework Equations I =...
  18. M

    Effect of pH on beetroot cell membrane permeability

    im meant to design an experiment (at AS level) and perform it to see how the pH can affect beetroot cell membrane permeability. i don't know where to start. anyone have any experiments?? thanks :biggrin:
  19. J

    Comparing Energy Emissions: Microwave Ovens vs. Cell Phones

    If the EM waves emitted by a cell phone and a microwave oven have similar frequencies, what does it mean that the waves emitted by the oven contain more energy? I believe that a microwave oven generates about 500 watts, whereas a cell phone generates only about 2 watts. What exactly does that...
  20. S

    Are Cell Phones Harmful to Your Health?

    Is it true that cell phones can be harmful to a person's health?
  21. Ivan Seeking

    These guys dress up like giant cell phones and. .

    These guys dress up like giant cell phones and then attack and destroy other people's cell phones. :smile: :smile: :smile: http://www.phonebashing.com/ If this is for real, there will be a judge who will also find this tremendously funny. They may think this is fun and games, but it is...
  22. B

    Neurons & Cell Repair: Understanding the Repair Process

    I'm confused about the ability of neurons to repair themselves. My understanding was that most tissue was repaired not by 'mending' individual cells but by creating new cells by cell division (and that most types of neurons don't actually do this) and that cells just became more worn until...
  23. Ivan Seeking

    Life of the Cell - Harvard Multimedia Animation

    http://multimedia.mcb.harvard.edu/anim_innerlife_hi.html
  24. S

    What is the actual diameter of the red blood cell?

    need some help please :) Had major paper due today, didn't have much time for my physics hw, and now I am stumped on some. Anyone got ideas, I have to turn it in tommorow! Thanks for any help you can give! 1. A microscope has an objective lens with a focal length of 16.22mm and an eyepiece...
  25. S

    Hexagonal Closest Packed Unit Cell Height

    My attempts to derive the height as a function of radius of the spheres packing the unit cell have failed. The best attempt so far was to create a diagonal line from the top atom to one of the middle ones. With that distance I thought I could use trig to find the component parallel to the height...
  26. A

    Make Chlorate Fast: Should I Use DC Converter 300 AMP?

    In Chlorate cell should i run 300 Amp by DC Converter 300 AMP to make Chlorate in short period?
  27. K

    Calculating Phonon Gas Density of States and Unit Cell Shape

    Let's suppose we have a Phonon gas in 1-D then: - density of states g(k)=A/ \frac{ d\omega (k)}{dk} (i don't remember the value of constant A sorry.. :-p :-p ) - The Schroedinguer equation (NO interaction) would be: H_TOTAL =\Sum_{i}\frac{P^{2} _{i}}{2M}+ \sum_{i}B\omega ^{2}(k)...
  28. P

    Electric Cell vs Circuit: What's the Difference?

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  29. N

    How to Measure the Internal Resistance of a Solar Cell?

    Hi, I am trying to do coursework on measuring the internal resistance of a solar cell. The light intensity on the solar cell is not going to change so the only thing that can be changed is the resistance as a variable resistor is used.But I am not sure how to find the internal resistance when I...
  30. Z

    Generating Electricity with Hydrogen Fuel Cells

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  31. M

    Golgi Apparatus: Impact on Cell Functionality

    anyone help me out, please. can anyone tell me the "problems a cell would encouter if this structure ceased to function"?(what would happen, if Golgi apparatus did not exsist)
  32. A

    How long does a cell live outside a living host?

    Hi, how long does a cell, normal and cancerous, live outside a living host? Thanks, Aoiro
  33. T

    Could a Microscopic Compound Solve the Storage Issue for Fuel Cell Cars?

    i recently read in a popular science magizine about a guy inventing a substance that was like a "scafalding" for atoms. that the atoms (gas state) bonded to this structure (assuming this scaffalding is microscopic) making it "semi-solid" i don't know what you would call it. but what if you did...
  34. N

    Don't use your cell phone during the class

    ...this might happen to you! :mad: http://youtube.com/watch?v=hut3VRL5XRE
  35. S

    The model number of a cell phone

    What does the model number of a cell phone stand for? Does it have a special significance? eg: nokia 3310 or sony k300i?
  36. iansmith

    New stem cell isolation protocol

    http://www.nytimes.com/2006/08/24/science/24stem.html?ei=5090&en=b2d5fa804870604d&ex=1314072000&adxnnl=1&partner=rssuserland&emc=rss&adxnnlx=1156554793-b82hPYSiVvSMmyaDSW1cDA Good news but I am afraid it will not help the political debate
  37. DaveC426913

    Should I buy an aftermarket battery for my old Sony Ericsson T200 phone?

    My Sony Ericsson T200 cell phone is ~4 years old. (I know, vacuum tubes and dial knobs). It is no longer made. Thus, they no longer make the batteries either. My battery's life has become quite short, lasting only a day or two without use (it used to last all week), so I'd like to replace it...
  38. Math Is Hard

    Medical Understanding Donald O. Hebb's Theory of Cell Assemblies

    I just started reading about Donald O. Hebb and his theories about cell assemblies. I am stuck on something really simple. From what I have read, if two neurons have a synaptic connection and they fire simultaneously, then that connection will be strengthened. What I can't understand is this -...
  39. T

    Low Voltage Galvanic Cell Troubleshooting

    I had to make a galvanic cell for my chemistry class and it was supposed to have a voltage of 2.3 but for some reason it only was .5. My cell was comprised of a iron and aluminim electrode with the respective nitrates.( potassium nitrate salt bridge) it was wondering if anybody knew why it would...
  40. A

    How many atoms in a human cell?

    How many atoms could fit inside a human cell? "A person's body is actually made up of trillions of cells (source: Science Concepts - Cells by Silverstein)", but how many atoms could fit inside a human cell? 125 million atoms could fit inside the period at the end of this sentence. But how...
  41. S

    Cell phone, mp3 player in the lab

    Is it it safe for electronics in physics labs (spectroscopy devices, lasers, AFM, Teraherz microscope) to use: - cell phone - radio - mp3 player Can they cause any noise in electronics and distort signals from photon counting detectors or influence lasers somehow? I'm asking because our...
  42. G

    Understanding Whole Cell Patch Clamp

    I don't really know the principles of this technique despite doing some reading: the cell patch is destroyed, and the contents of the cytoplasm can mix with the contents of the electrode. there is a low resistance pathway - so what? and how can measurements be made if the membrane is...
  43. R

    How does the curvature of the earth affect the speed of cell phone signals?

    I thought a cell phone sent messages at the speed of light, but I was told that much of it goes through wires and not the atmosphere. How do wires effect the speed, and does it mostly go through wires?
  44. B

    Making a Hydrogen Fuel Cell: Is it Possible?

    how do i make a fuel cell which utilises hydrogen and oxygen to make water and in the meantime give out loads of heat. is it possible?:
  45. Pengwuino

    How can we improve battery life for cell phones?

    Dang Tree hugging cell phone! This stupid cell phone! The battery discharged in under 24 hours of simply being on standby! :devil: :devil: :devil: :devil: :devil: :devil: I hate everything. I hate life. I'm going to commit suicide. Wait cyrusabdollahi would like that. I plan on living...
  46. Astronuc

    News Slobodan Milošević dies in prison cell

    http://en.wikinews.org/wiki/Former_Yugoslavian_president_Slobodan_Milosevic_found_dead_in_his_cell http://news.yahoo.com/s/ap/20060312/ap_on_re_eu/milosevic The war crimes trial of Milošević was drawing to the end when he was found dead. So the rest is academic. There are still...
  47. L

    Measuring activities with a Knudsen cell

    Hello I would like to find some texts or web sites explaining how and why activities can be measured with a Knudsen cell. What is measured and how the Gibbs energy is deuced from the measurements. I would also like to find out the range of application of this method, like for temperatures...
  48. O

    Reversal of Spinal Cord Damage using Stem Cell Therapy

    Did anyone happen to catch the 60mins TV spot of Hans S. Keirstead last night? His research showing reversing spinal cord damage in rats using human embryo stem cells is compelling. Brings this approach to humans paralyzed by spinal cord damage, closer to reality. Human clinical trials may...
  49. E

    Current in cell during a certain period

    Does anyone know how to do this problem? I cannot find any examples in my book like it, and I have gotten no where in a full hour. If 3.9x10^-3 of gold is deposited on the negative electrode of an electrolytic cell in a period of 2.67 h, what is the current in the cell during this period...
  50. A

    What distinguishes a crystal lattice from a unit cell?

    what's the difference between those two?
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