Where results make sense

About us   |   Why use us?   |   Reviews   |   PR   |   Contact us

Electric charge : Positive charge   (Site not responding. Last check: 2007-08-12) The interaction between charge and an electromagnetic field is the source of one of the four fundamental forces. Charge was discovered by the Ancient Greeks who found that rubbing fur on various substances, such as amber, would build up an electric charge imbalance. Arbitrarily (or for a reason that was not recorded) he identified the term "positive" with the type of charge acquired by a glass rod rubbed with silk, and "negative" with that acquired by an amber rod rubbed with fur. www.eurofreehost.com /po/Positive_charge.html   (381 words)

The Physics Classroom While overall the object is neutral (i.e., has the same number of electrons as protons), there is an excess of positive charge on one side of the object and an excess of negative charge on the opposite side of the object. When an object is charged by induction, the charge received by the object is opposite the charge of the object which was used to charge it. A charged object is needed to charge an object by induction. www.physicsclassroom.com /mmedia/estatics/isop.html   (534 words)

MSN Encarta - Proton Proton, nuclear particle having a positive charge identical in magnitude to the negative charge of an electron and, together with the neutron, a constituent of all atomic nuclei. It differs from the proton in having a negative charge and not being a constituent of atomic nuclei. Although physicists first postulated the existence of this elementary particle in the 1930s, the antiproton was positively identified for the first time in 1955 at the University of California Radiation Laboratory. uk.encarta.msn.com /encyclopedia_761577976/Proton.html   (368 words)

Patent 5877073: Modified poly-buffered locos forming technology avoiding the positive charge trapping at the beak of ... The method employs DIW (Deionized Water) to be sprayed onto the wafer before gate electrode forming to eliminate the trapping of positive charges and reduce the undesired charge breakdown thereby increasing the yield of devices not containing this defect. The process of the present invention avoids positive charge trapping in the beak of the field oxide layer and avoids the charge breakdown which occurs in the prior art processes. The positive charges usually trap in the beak region of field oxide layer 30 wherein it is indicated at 42. www.freepatentsonline.com /5877073.html   (2483 words)

Patent 5742542: Non-volatile memory cells using only positive charge to store data In EEPLD terminology, the charging of the floating gate (adding electrons) is referred to as "erase" and the discharging of the floating gate (removing electrons) is referred to as "programming." It will be noted that this is opposite to the definitions of erase and programming in "flash" memory terminology. In view of recent research conducted by the inventors, it has been determined that data retention utilizing the storage of electrons (negative charge) on the floating gate degrades sharply when the thickness of the tunnel oxide is scaled down, but that data retention which uses the storage of positive charge remains very stable. The tunnel oxide layer 55 is represented by a capacitor C.sub.t, and the gate oxide layer 37 between the source 34 of the sense transistor and the floating gate 38 is represented by a capacitor C.sub.g. www.freepatentsonline.com /5742542.html   (4744 words)

Recovery curves of the surface electric field after lightning discharges occurring between the positive charge pocket ... The behavior of recovery curves is explained in terms of the coronae charge and the relative efficiencies of the charge generating processes responsible for growth of positive charge pocket and main negative charge centre in the thundercloud. The charging currents responsible for the growth of charge in positive charge pockets is computed to be 2–4 times larger than that for the growth of the main negative charge. However, the charge destroyed in such a discharge is found to be comparable to that in a discharge between the main charge centres of the thundercloud. www.agu.org /pubs/crossref/2002/2002GL015675.shtml   (283 words)

Gate enhanced tri-channel positive charge pump - US Patent 6496055   (Site not responding. Last check: 2007-08-12) The positive charge pump of one embodiment comprises a switching device to transfer charge from its input terminal to its output terminal, the switching terminal further comprising a substrate terminal coupled to the input terminal. Some existing charge pumps, such as a charge pump apparatus with diode connected pull-up on boot nodes, have pull-down devices whose gates are connected to the same boot node. Charge is transferred from C12312 at node 316 through N24330 to C22332 at node 336. www.patentstorm.us /patents/6496055.html   (7547 words)

Gate enhanced tri-channel positive charge pump - US Patent 6686793   (Site not responding. Last check: 2007-08-12) In this implementation of the positive pump architecture, the deep N well of each transistor device is connected to its drain terminal. Charge is transferred from C22332 through N34350 to C32352, causing the voltage potential on node 336 to drop and the potential on node 356 to rise. This charge transfer can be related to the charge being passed from a storage capacitor of an earlier stage through a switching device over to a storage capacitor of a subsequent stage. www.patentstorm.us /patents/6686793.html   (7192 words)

Electricity & Static Electricity The charge of one proton is equal in strength to the charge of one electron. K is the proportionality constant, and depends on the material separating the charges. Charge the comb by running it through long, dry hair several times, or vigorously rub the comb on a wool sweater. www.sciencemadesimple.com /static.html   (2075 words)

TFCBooks -- Tesla Site Glossary The basic unit of charge, usually denoted by e, is that on the proton or the electron; that on the proton is designated as positive (+e) and that on the electron is designated as negative (-e). Charge can be positive or negative; one positive charge can combine with one negative charge, and the result is a net charge of zero. When a negatively charged object is brought near a neutral object, it induces a positive charge on the near side of the object and a negative charge on the far side. www.tfcbooks.com /mainpage/glossary.htm   (12766 words)

Positive charge modifications alter the ability of XIP to inhibit the plasma membrane calcium pump -- Xu et al. 271 ... Positive charge modifications alter the ability of XIP to inhibit the plasma membrane calcium pump -- Xu et al. Positive charge modifications alter the ability of XIP to inhibit the plasma membrane calcium pump the positive charge on Lys at positions 7, 11, and 17. ajpcell.physiology.org /cgi/content/abstract/271/3/C736   (242 words)

Electricity and Electronics Electricity is concerned with the positively charged particles, such as protons, that repel one another and the negatively charged particles, such as electrons, that also repel one another. An electron is a negatively charged elementary particle; it is a constituent of all atoms. Static electricity is a class of phenomena involving the imbalanced charge present on an object, typically referring to charge with voltages of sufficient magnitude to produce visible attraction, repulsion, and sparks. kosmoi.com /Science/Physics/Electricity   (925 words)

Guardian | Positive charge Yesterday the government's own advisors on the M25 said charges would be needed within two years to curb congestion on the London orbital motorway should its planned widening go ahead. This may be why a government study suggested introducing road charges initially in wealthy areas. The effects of road pricing will be better discerned when the mayor of London, Ken Livingstone, introduces a £5 charge to enter the capital during the week in a bid to cut congestion by 30%. www.guardian.co.uk /print/0,3858,4499323-111267,00.html   (403 words)

Definition of an Electric Field The test charge feels a force (red arrow). The electric field (fl arrow) is the force divided by the test charge. Moving the test charge changes the magnitude and direction of the force. www.people.vcu.edu /~rgowdy/mod/080/efldpcmv.htm   (188 words)

Separation of peptides on the basis of the difference in positive charge: simultaneous isolation of C-terminal and ... Separation of peptides on the basis of the difference in positive charge: simultaneous isolation of C-terminal and blocked N-terminal peptides from tryptic digests -- Kawasaki et al. Separation of peptides on the basis of the difference in positive charge: simultaneous isolation of C-terminal and blocked N-terminal peptides from tryptic digests charge was examined with tryptic digests of apomyoglobin and calmodulin. jb.oupjournals.org /cgi/content/abstract/102/2/393   (160 words)

Sci-Fi Helper - Magnetic Fields and Electricity He is not charged or anything, and no explanation is given as to why suddenly it is snowing during summer and raining in the desert because of his temper and mood. Historically, the direction of current was described in terms of the motion of imaginary positive charges; this convention is still used by many scientists, although it is directly opposite to the direction of electron flow, which is now known to be the basis of electric current in solids. The negatively charged electrons in an atom are held near the nucleus because of their attraction for the positively charged protons in the nucleus. www.themarginal.com /magneticfields.htm   (4000 words)

E A positive test charge can be clicked and dragged around to see the electric field that each charge creates at the location of the test charge as well as the total E-field at the location of the test charge. The advantage of using the concept of an E-field is that the force on a charge can be easily found if you know the vector value of the E-field at the location of the charge even though the E-field may arise from a complicate arrangement of a large number of charges. The direction of the electric force on a negative charge is opposite to the direction of the Electric field at the location of the charge. www.ac.wwu.edu /~vawter/PhysicsNet/Topics/ElectricForce/ForceField.html   (642 words)

Electric charge : Positive charge   (Site not responding. Last check: 2007-08-12) Matter is actually composed of two kinds of electricity: particles called protons which carry a charge of positive electricity, and particles called electrons which carry a charge of negative electricity. Rather than one possible electric current there are many: a flow of negative particles, or a flow of positive particles, or a flow of both negative and positive particles in opposite directions. Aside from the properties described in articles about electromagnetism, it is worth noting that charge is a relativistic invariant. www.eurofreehost.com /po/Positive_charge_2.html   (281 words)

An ion with a positive charge would be formed and this ion is called a cation   (Site not responding. Last check: 2007-08-12) An ion with a positive charge would be formed and this ion is called a cation In the nucleus there is a single proton with a positive charge. If we add an electron by a chemical reaction, then there would be 2 negative charges but still only 1 positive charge for an overall net charge of minus one. chemistry.boisestate.edu /rbanks/inorganic/atomic%20structure/atomicstructure_c.htm   (106 words)

Experiment - Charging up a light bulb Your body (hair) becomes positively charged (because it has more protons than electrons) while the comb becomes negatively charged (it gained electrons from your hair). When you touch the comb to the end of the light bulb, the charged comb discharges into the light bulb causing the bulb to emit small pulses of light. These devices put a positive electric charge on particles of dust, smoke, bacteria, or pollen in the air. www.spartechsoftware.com /reeko/Experiments/ExpChargeLightBulb.htm   (409 words)

A Mutant HemA Protein with Positive Charge Close to the N Terminus Is Stabilized against Heme-Regulated Proteolysis in ... A Mutant HemA Protein with Positive Charge Close to the N Terminus Is Stabilized against Heme-Regulated Proteolysis in Salmonella typhimurium -- Wang et al. The positions of native HemA, the truncated HemA protein from hemA60, and HemA The positions of HemA[WT] and HemA[KK] proteins are indicated. jb.asm.org /cgi/content/full/181/19/6033   (6129 words)

Augmentation of the antibacterial activity of magainin by positive- charge chain extension -- Bessalle et al. 36 (2): ... Augmentation of the antibacterial activity of magainin by positive- charge chain extension -- Bessalle et al. Augmentation of the antibacterial activity of magainin by positive- charge chain extension positively charged amino acids to either its N or its C terminus and by aac.asm.org /cgi/content/abstract/36/2/313   (398 words)

Localized, Positive Charge Mediates Adhesion of Rhodosporidium toruloides to Barley Leaves and Polystyrene -- Buck and ... Localized, Positive Charge Mediates Adhesion of Rhodosporidium toruloides to Barley Leaves and Polystyrene -- Buck and Andrews 65 (5): 2179 -- Applied and Environmental Microbiology Localized, Positive Charge Mediates Adhesion of Rhodosporidium toruloides to Barley Leaves and Polystyrene of positive charge which was also visualized with India ink. aem.asm.org /cgi/content/abstract/65/5/2179   (230 words)

Positive Charge International - the global experts in skilled learning Positive Charge International - the global experts in skilled learning Positive Charge International helps organisations all over the world to thrive on change through learning. We are the international experts in Learning For Change, in Making Learning Happen, and in having fun along the way. www.positivechargeinternational.com   (77 words)

The Role of Hydrogen in the Creation of Positive Charge and Oxide Defects During High-Field Stress of SiO2 Films.   (Site not responding. Last check: 2007-08-12) The Role of Hydrogen in the Creation of Positive Charge and Oxide Defects During High-Field Stress of SiO2 Films. Both the flatband voltage of the high frequency capacitance-voltage curve and feedback voltage were used to measure the oxide charge during constant current 7MV/cm Fowler-Nordheim tunneling. Although present results are based on a comparison of stress-induced oxide charge and radiation-induced E' center, data reported at the conference will directly relate stress-induced oxide defects with the trapped charge. flux.aps.org /meetings/BAPSMAR96/abs/S2540002.html   (205 words)

Mobilities of negative and positive charge carriers injected from metal electrodes into liquid benzene   (Site not responding. Last check: 2007-08-12) The influence of dissolved water on the electric current between metal electrodes in liquid benzene can be interpreted by assuming an injection of charge carriers, the mobility of which depends linearly on water content. It will be shown that the current in dry benzene is transported by positive charge carriers, whereas additional negative carriers can be found in benzene containing dissolved water. The mobility of both types of charge carriers will be given as a function of temperature and, in the case of positive carriers, as a function of water content, too. ej.iop.org /EJ/abstract/0022-3727/3/1/312   (285 words)

Electricity and Magnetism   (Site not responding. Last check: 2007-08-12) Charging an Electrophorus by induction using a negatively-charged object Charging an Electroscope by induction using a negatively-charged balloon a red positively charged particle will begin moving into the force field. www.specialedprep.net /MSAT%20SCIENCE/ElectMagnetHomePage.htm   (1246 words)

Try your search on: Qwika (all wikis)

About us   |   Why use us?   |   Reviews   |   Press   |   Contact us   Copyright © 2005-2007 www.factbites.com Usage implies agreement with terms.