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.

View More On Wikipedia.org
  1. I

    Questions on solar cell technology?

    Homework Statement I'm a sort of a newbie student studying solar cell for 2 months and having my test next week, so I've in need of help here! 1) Identify the majority and minority carriers in p-type silicon with n-type silicon solar cell? 2) Explain the term diffusion and drift current? 3)...
  2. I

    Can someone tell me what's wrong with my photovoltaic cell fill factor?

    Homework Statement A 12V photovoltaic cell receives solar irradiance of 200W/cm^2. Measurement show that the photovoltaic cell has an open-circuit of 0.6V, short-circuit current of 3A, and the photovoltaic cell maximum current is 80% of the short-circuit current. The efficiency of the...
  3. W

    Quantum Cell Phones - Investigating the Possibilities

    Quantum "Cell Phones?" Earlier today, I was thinking, what if we could use Quantum mechanics to have lighting fast cell phone access? How it could work is you could have one particle in the Cell Phone tower (which could now be just a room.) That was entangled with the particle in your cell...
  4. R

    Faraday Flashligh = Cell Phone Charger?

    Hi, I am an engineering student, and I have an idea for a project, but I am not sure if it is viable. I want to make an article of clothing such as a jacket with several mini faraday flashlight-esque devices inside. They would be connected, and would charge a cell phone or other electronic...
  5. H

    Silicon solar cell degradation due to solar fluxes

    I am trying to find the Absorbed dose for Silicon cells on a geostationary satellite from a period of (1996 to 2005) The Equation I have is: D(rad) = 1.68e-8 *((1/ρ)*dE/dx) * Phi Where: D is absorbed dose and units are (100 ergs/g or 0.01 J/Kg) (1/ρ)*dE/dx = (MeV*cm^2)/g...
  6. F

    Gasoline fuel cell (vs. gas generator)

    Fuel cells means chem engineering, right? (move to the right section if necessary) Anyway this sounds great, except that it still uses gasoline: http://www.technologyreview.com/energy/39203/
  7. rhody

    Carrier IQ Your cell phone's secret big brother

    I have been following this story for awhile, and since no one is reporting it, I thought I would post, because I feel you should be aware of what you may be subjected to when you use your cell phone. Have a look, comments, disbelief, outrage...
  8. J

    Determining the potential in a cell that is not at equilibrium concentrations.

    Homework Statement I attached a picture and I am confused by Part C. The standard potential is given Eo=1.21 Homework Equations Ecell=Eocell-RTlnQ/nF R=8.3145 T=298.15 F=96485 Q=activity products/ activity reactants The Attempt at a Solution My problem with this question is...
  9. rhody

    Samsung software issue with cell phone

    I just replaced my old Nokia cell phone with a new Samsung phone about two months ago. I loved the voice quality and reliability of my old Nokia, but they don't make them anymore, so I settled for a Samsung with a small keyboard. I use TMobile and in general have been OK with their service...
  10. P

    Help me S beam load cell as gravity sensor

    hye guys... i need to do some design which need me to use S beam load cell as gravity sensor...anyone have ideas about my project?
  11. L

    Understanding Free Energy in Fuel Cell Reactions

    I'm given a fuel cell that uses methane as fuel: (CH4) + 2(O2) --> 2(H2O) + (CO2) And I'm asked to find (a) the electrical work I can get out for each mole of methane, and (b) the amount of waste heat produced. I understand that ΔG is defined as the amount of useful non-mechanical work...
  12. M

    Control of Cell Size / Mechanism of Hypertrophy

    How are cell membranes enlarged? What is known about how this process is controlled? How might I read more about this topic? I am mainly asking about animal cells.
  13. J

    Investigating the Effects of Reflected Sun Light on Solar Cell Output

    My son is a 3rd grader and wanted to do a science fair project on solar cells. So we devised an experiment to see if reflecting light with a mirrow would increase power output. We constructed a circuit using an amp-meter, solar cell, and 10Kohm resistor. He hypothesized that reflecting sun...
  14. R

    Logistic growth model for cell proliferation with agents

    Hello community, in project group I am doing some in which I definitely need your help. Basically what I am intending to do is to examine the cell proliferation of cell of the colorectal carcinoma. The data I will receive is from the xCELLigence system and generates so called cell...
  15. J

    Finding Standard Gibbs Free energy for half cell reaction.

    The standard potential of the Cl−(aq.)|AgCl(s)|Ag(s) electrode in the vicinity of T = 298 K has been found to fit the expression E\theta/V = -0.00558 + 2.6967x10^-3(T/K) - 8.2299x10^-6(T/K)^2 + 5.869x10^-9(T/K)^3 Find the standard Gibbs free energy, the standard enthalpy, and the standard...
  16. B

    Photoelectric Cells: What Are They and Why Evacuated?

    I was wondering why photoelectric cells are evacuated
  17. W

    How to choose plasmids for certain types of cell?

    How do you know which plasmids are suitable (disregard the efficiency for now) for say, mammalian cells? For example, this http://www.addgene.org/12091/" is it suitable for HeLa cells? Basically, I'm confused as to what "Growth strain" and "Vector type" mean. Does Growth strain mean where the...
  18. P

    Calculating ξ° value for a galvanic cell

    Calculate the ξ° value for the galvanic cell: IO3(aq) + Fe2+(aq) <--> Fe3+(aq) + I2(aq) So I found the half reactions to be: 5Fe2+(aq) --> 5Fe3+(aq) + 5e- Reducing agent 0.77V 6H+(aq) + 5Fe2+(aq) + 5e- --> I2(aq) + 3H2O Oxidizing agent The problem I have is that I can't find the...
  19. M

    PEM Fuel Cell: Hydrogen Ion Diffusion Through Anode?

    Hey everyone, I was just wondering, in a PEM fuel cell the Hydrogen ion diffusion through the membrane is an important step. But don't these ions need to diffuse through the anode as well to reach the membrane? Also, if this is the case and the anode is a metal like Pt, wouldn't the diffusion...
  20. S

    What are permanent features of a bacterial cell?

    Out of these I mean 1. Capsule 2. Cell wall 3. Flagella 4. Nucleus 5. Plasmid Bacteria don't have a definite nucleus, I'm thinking it is cell wall that is a permanent feature. Am I right!
  21. Ryan_m_b

    Medical What potential applications could biofuel cells have in the medical field?

    This is a very cool development. I'd be excited to see what other applications this could have. http://www.bbc.co.uk/news/technology-15305579
  22. N

    How to design a better project for dye-sensitized-solar cell

    Hi Physics friends, We purchased a dye-sensitized-sloar cell (DSC) kit for $50 which can make 5 sets of cells (10 pieces of glasses). Hope we can make a good plan so we won't waste the materials. We are thinking of making the dye from berries and change the concentration, and/or using a...
  23. C

    Finding Ka using a Galvanic cell and Electric Potential

    Homework Statement Suppose you wish to determine Ka for a monoprotic weak acid of molecular mass 76.11 g/mol. The pH meter you need to use is not working. You decide to weigh out 2.28 g of the acid and 1.96 of its sodium salt and dissolve them together in water, add quinhydrone and set up a...
  24. Y

    CPC and Fresnel Lenses for Solar Cell Power

    I want to maximize solar cell efficiency regardless of the sun's angle and so I've been looking at placing Compound Parabolic Concentrator (CPC) over the top of a high efficiency round solar cell. If I come up with a good design then I would like to try and manufacture some of them to see if I...
  25. L

    What is the density of a unit cell of NaCl crystal?

    Knowing the atomic weights of Na+ and Cl- are 23 and 35.5, respectively, calculate the density (g/cm^3) of NaCl crystal. Hint: Avogadro’s number N = 6.02 x 10^23 is the number of atoms in one mole (weight of 1 mole = atomic weight in grams) unit cell is Face centered unit cell contains a...
  26. F

    Solutions Manual for Physical Biology of the Cell

    Does anyone have a solutions manual for the biophysics textbook, Physical Biology of the Cell. Or a link/login info for an online copy?
  27. A

    Visualising atomic orbitals in a unit cell (software for making figures?)

    So I usually use VESTA to make my figures, and though the new version is able to do many mad things with calculated electron density isostructures and whatnot, I can't seem to just be able to throw in some clover-leaf d or p orbitals like what was done in the image below (from this paper on...
  28. K

    How to become researchers of solar cell?

    I am now waiting to go uni after alvls. I am interested to do research about solar cell. which engineering program should I take? elelctrical, mechanical?? if my uni offer me electronics in optical engineering, should I go if I wan to research in solar cell??
  29. B

    Building a tester for solar cell efficiency

    I am trying to have students build a tester with sourceMeter, lamp, etc. for solar cell efficiency measurement. Could someone give me advice on this project? Thank you very much.
  30. S

    Is a Daniell Cell Rechargeable?

    I will admit that I still have a bit of trouble when it comes to reading the table of standard electrode potentials. (Though, I do think my understanding is improving.) However, unless I am mistaken, should not Daniell cells (zinc anode, copper cathode, sulfate solutions) not rechargeable...
  31. B

    Removing pre-load voltage difference for a load cell

    I am trying to use a 0-5000 lb load cell with an Arduino. My issue is the 10 bit input on the Arduino. The load cell will actually be pre-loaded to about 3800 lbs. I just need to measure up to a couple hundred pounds difference. The load cell is a standard 4 wire and measures the difference...
  32. M

    How Does a Solar Cell Operate in Forward Bias?

    My question is basically how can a solar cell operate in forward bias? A normal diode in forward bias (with a battery connected) drives electrons from the N-side towards the pn junction where they are continuously recombining with holes (reducing the depletion zone and allowing for the flow...
  33. D

    How to prove there is no primitive cell of diamond structure with only one atom?

    How to prove there is no primitive cell of diamond structure with only one atom? Thanks in advance!
  34. S

    Primitive lattice vectors, reciprocal lattice, wigner seitz cell

    How can i develop a sketch of the lattice and reciprocal lattice from vector form a=i+4j b=3i i know how to draw the wigner site cell, but I am having problems developing a sketch from vectors. what is the method for working it out..please help
  35. B

    How Do Galvanic Cell Dynamics Change Upon Connection of an External Conductor?

    I'd like to understand the dynamics of a galvanic cell in terms of fundamental physical principles, rather than the usual higher-level equilibrium chemistry explanation. Specifically, how do the states of the electrodes, solutions and salt bridge evolve in the time immediately after the...
  36. T

    Will any viruses simply infect different cells after their host cell suicides

    That is what is on my mind after reading this article: http://healthland.time.com/2011/08/11/mit-scientists-develop-a-drug-to-fight-any-viral-infection/
  37. S

    Difference between Primitive cell, unit cell and a wigner-seitz cell.

    Hi to all experts! I know individually about primitive cell("It has lattice point at corners only") and unit cell("It has lattice point at corners as well as at center if bcc or at faces if fcc or at bases if it is base centered") Are these right? But I don't know what is Wigner-Seitz cell...
  38. Pengwuino

    Photon energy argument against cell phones causing cancer

    I remember reading on this forum (probably) about how it was physically impossible for cell phones to cause damage to DNA. A microwave photon has energy in the meV range. My biology and chemistry aren't all that great, and what little I could properly google gave me the idea that molecular bonds...
  39. H

    To generate electricity from piezoelectric load cell

    i want to generate electricity from piezoelectric load cell by application of load on it, but i don't know which type of cell to use and from where to get it? i want good efficiency, please help me out.
  40. G

    How does a salt bridge prevent charge buildup in a galvanic cell?

    As electrons leave one half of a galvanic cell and flow to the other, a difference in charge is established. If no salt bridge were used, this charge difference would prevent further flow of electrons. Why would the charge difference prevent further flow of electrons ??
  41. T

    Can Cell Phones Communicate Directly Without Towers?

    Hypothetically, could the transmitter-receiver systems in cell phones communicate directly among other such systems at a range comparable to the range they can communicate with towers? With 4G bandwidth?
  42. P

    Type of waves used in cell phone comm?

    I have received conflicting information from the internet regaurding cell phone/mobile phone communication. Some articles site radio waves and others microwaves and still others mix the two when trying to explain the signals used by cell phones/mobile phones? What am I missing? I did some...
  43. N

    Albinism Allele Copies in Human Cell Division: Meiosis Explanation

    Homework Statement Albinism in humans is controlled by a recessive allele. How many copies of this allele will be found at one of the poles of a cell at telophase I of meiosis in an albino person. A.23 B.4 C.2 D.1 Homework Equations The Attempt at a Solution Let rr be the recessive...
  44. G

    EM field of cell, microtubules, quantum behavior in biological systems

    The cytoskeletal structures were considered responsible for the elementary cellular intelligence in the past. (For example, see the articles from Albrecht Buehler. http://www.basic.northwestern.edu/g-buehler/FRAME.HTM.) Microtubules are pipe-like structures made of two kinds of proteins...
  45. T

    Ferrofluid Display Cell construction- hydrophilic surface application help

    Greetings everyone, I'm constructing a ferrofluid display cell using FerroTech EFH1 ferrofluid inside of a round bottom pyrex beaker. The ferrofluid is oil based, so it is not hydrophilic. The liquid that the ferrofluid will be suspended in is Magnesium Citrate (a household laxative... and no...
  46. M

    Why did my D cell battery get hot for no apparent reason?

    "D" cell battery gets hot As a hobbyist, I was playing around with an MP3 player that uses a single alkaline AAA battery. I wanted to see if the player would still work if I attached a "D" cell battery to the device. I went to Radio Shack and puchased a "D" cell battery holder which has two...
  47. Z

    Using Cell Biology Book From 1983

    The bio department at my university encouraged that I "take a look at" Alberts' Molecular Biology of the Cell over this summer in preparation for a course next year. The problem with this is that I don't want to actually buy a $100+ book just for that, but the only book I have borrowing access...
  48. L

    What is the different between thin-film PV cell and crystalline silicon PV cell?

    What is the different between thin-film PV cell and crystalline silicon PV cell? Are they using the same material but just differ in the fabrication process? Does a multi-junction PV cell belongs to thin-film or crystalline type?
  49. S

    Maxiumum Incident power on solar cell ?

    Hi I have simulated a dual junction(Multijunction) solar cell of thickness 10 microns and length 20 microns in silvaco atlas device simulator. In order to calculate its efficiency i need exact value of incident solar power i.e Pin for the above said structure. These are the parameters...
  50. M

    Electrolytic Cell Problem - Can't calculate req'd voltage

    Homework Statement What voltage must be applied to decrease the mass of Ag(s) in the electrolytic cell reaction below? 2 Ag+(aq) + Cd(s) → 2 Ag(s) + Cd2+(aq) Homework Equations Standard reduction potential of Ag+: Eo = +0.80 V Standard reduction potential of Cd2+: Eo = -0.40 V...
Back
Top