Sentences with phrase «electrical currents on»

(Also, cloud - to - ground lightning involves electrical currents on the order of tens of thousands of amps.

«This demonstrates the feasibility of detecting the magnitudes and locations of electrical currents on a global basis,» says Robert Robinson, program director for magnetospheric physics at the National Science Foundation.

The one big difference between the two is BP's natural band gap, allowing the material to switch its electrical current on and off.

Not exact matches

Their technologies depend on a phenomenon called electrochromism — the ability of certain chemicals to change colour when electrical currents are applied.

According to a fascinatingly nerdy deep dive into the subject in the New Yorker, the current mania for the word «hack» all started way back in the 1950s at MIT, where members of the model railroad club were already warning those «hacking on the electrical system turn the power off to avoid fuse blowing.»

• The scanning tunnelling microscope measures changes in electrical current between the probe tip and the atoms on a sample surface.

In the present case, it is important that we do not lose sight of the fact that, in reality, there is no such thing as an electrical field that is separable from current sources, a medium, chemical gradients, heat, gravity, and so on ad infinitum.

According to Harold McGee in On Food and Cooking (second edition, page 429), they are not simply pungent; «they produce a strange tingling, buzzing, numbing sensation that is something like the effect of carbonated drinks or of a mild electrical current (touching the terminals of a nine - volt battery to the tongue).

Basically, they place the acupuncture needles in specific places on your body (ankles, lower back, hands, etc.) and attach electrodes to the needles which transmit a low electrical current to stimulate the acupoints.

A noninvasive technique for brain stimulation, tDCS is applied using two small electrodes placed on the scalp, delivering short bursts of extremely low - intensity electrical currents.

Electrical currents travel through an animal more or less effectively depending on its outer layer.

In «A researcher reveals the shocking truth about electric eels» (SN: 10/14/17, p. 4), Mariah Quintanilla reported on a biologist who recorded the electrical current traveling through his own arm during an electric eel's attack.

They first isolated a buckyball on a metal surface with a scanning tunneling microscope (STM), which images the atomic contours of a surface by measuring changes in the electrical current that travels between the surface and an ultrasharp tip that scans across it.

The scientists settled on an electrical current that would melt the membrane on command.

Studies reveal that wounds on diabetic mice pack abnormally weak electrical currents.

Instead, the triangular module applies pulsed electrical currents to the electrodes, targeting nerves on the face and neck that then modulate some of the hormones underlying the fight - or - flight response.

They found that when a negative electrical potential is applied to skin on various parts of the arm, creating a current, that stretch of skin exhibits a low resistance to a subsequent current flowing through the skin.

On one level, there's the dynamics of electrical currents that constitute the main signaling method of the brain's nerve cells.

They will design improved cluster systems with better electrical performances (e.g. higher on / off current ratio, different accessible states), and increase the number of atoms in the cluster core while maintaining the atomic precision and uniformity of the compound.

In TDCS, electrical current flows continuously between electrodes placed on different parts of the scalp, activating neurons in one area and quieting them in another.

And the rise in electronic temperature, caused by the passing currents, in turn has a strong effect on the electrical conduction of graphene» explains Professor Mischa Bonn, Director at the MPI - P.

Electrodes are surgically implanted into or on top of target nerve fibres, ready to sense electrical signals from neural activity or to deliver electric current that mimics the language of the nervous system.

This involved running a painless electrical current between two electrodes placed on the participant's scalp, to activate the right inferior frontal gyrus, a part of the brain that controls inhibitory control.

This pressure gradient in turn produces a temperature differential on the surface, which prompts production of a tiny electrical current.

In contrast to electrical currents, on which todays information technology is based, magnon spin currents do not conduct electrical charges but magnetic momenta.

«The electrical signal is thus not based on an electric current but is caused by a mechanical force,» points out Thomas Heimburg.

When a metal is in the presence of alternating magnetic fields (AMFs), electrical currents are produced on the metal, which generate heat.

First, he created 20 - centimetre - long flexible ribbons made of a piezoelectric polymer that generates electrical currents when perturbed, either by wind or when rain drops fall on it.

Current treatment methods used are transcranial direct current simulation (tDCS)-- which is application of a low intensity direct (constant) current between two electrodes on the head, and transcranial alternating current simulation (tACS)-- which sees a constant electrical current flow back andCurrent treatment methods used are transcranial direct current simulation (tDCS)-- which is application of a low intensity direct (constant) current between two electrodes on the head, and transcranial alternating current simulation (tACS)-- which sees a constant electrical current flow back andcurrent simulation (tDCS)-- which is application of a low intensity direct (constant) current between two electrodes on the head, and transcranial alternating current simulation (tACS)-- which sees a constant electrical current flow back andcurrent between two electrodes on the head, and transcranial alternating current simulation (tACS)-- which sees a constant electrical current flow back andcurrent simulation (tACS)-- which sees a constant electrical current flow back andcurrent flow back and forth.

When the powerful electrical currents running through the LHC came to bear on that tiny piece of solder, the resulting heat set off a cascade of events, ending in a sudden release of helium that blew aside several of the collider's massive superconducting magnets.

They produced the biggest electrical fields on the ground - and hence currents - we have seen since our system started operation in 2012.

Using an onboard source of energy (such as a battery, ultracapacitor, solar panel or any combination thereof), the electrodes will send an electrical current into the plasma, causing the plasma to push against the neutral (noncharged) air surrounding the craft, theoretically generating enough force for liftoff and movement in different directions (depending on where on the craft's surface you direct the electrical current).

The fact that the protective aluminum oxide layer is not incorporated on the outside, as often attempted by other researchers, also makes it possible to apply a broad range of materials on both sides of the solar cell and allows the maximum penetration of light in the perovskite layer and thereby the optimum utilization of electrical current.

The best known is microRNAs, tiny molecules that are responsible for turning on or off our genome like an electrical current switch.

Halas, Rice's Stanley C. Moore Professor of Electrical and Computer Engineering and professor of chemistry, bioengineering, physics and astronomy, and materials science and nanoengineering, said hot electrons are particularly interesting for solar - energy applications because they can be used to create devices that produce direct current or to drive chemical reactions on otherwise inert metal surfaces.

It's the mass migration of such holes that creates the large electrical currents responsible for generating the low - frequency magnetic pulses that make their way to detectors on Earth's surface, they say.

RAM, which is used to run the programs on your computer, can record and rewrite information very quickly via an electrical current.

«When electrical currents are created in such a system of flows, they can cause a magnetic field which in turn increases the electrical current and so forth — and finally the magnetic field becomes so strong that we can measure it on the surface of Earth,» says Alessandro Toschi.

Current treatment methods used are transcranial direct current simulation (tDCS)- which is application of a low intensity direct (constant) current between two electrodes on the head, and transcranial alternating current simulation (tACS)- which sees a constant electrical current flow back andCurrent treatment methods used are transcranial direct current simulation (tDCS)- which is application of a low intensity direct (constant) current between two electrodes on the head, and transcranial alternating current simulation (tACS)- which sees a constant electrical current flow back andcurrent simulation (tDCS)- which is application of a low intensity direct (constant) current between two electrodes on the head, and transcranial alternating current simulation (tACS)- which sees a constant electrical current flow back andcurrent between two electrodes on the head, and transcranial alternating current simulation (tACS)- which sees a constant electrical current flow back andcurrent simulation (tACS)- which sees a constant electrical current flow back andcurrent flow back and forth.

«We also found that because the pain neurons take longer to come back on line, we may be able to conserve energy and not have to deliver this electrical current constantly to keep them blocked.»

Every time the current runs between two electrodes, a computer monitors and records the electrical potential at all of the electrodes on the structure.

In the past, researchers have focused on maximizing the electrical current flowing inside of the solar cell, rather than maximizing the number of photons emitted when light hits the surface of the cell.

g (acceleration due to gravity) G (gravitational constant) G star G1.9 +0.3 gabbro Gabor, Dennis (1900 — 1979) Gabriel's Horn Gacrux (Gamma Crucis) gadolinium Gagarin, Yuri Alexeyevich (1934 — 1968) Gagarin Cosmonaut Training Center GAIA Gaia Hypothesis galactic anticenter galactic bulge galactic center Galactic Club galactic coordinates galactic disk galactic empire galactic equator galactic habitable zone galactic halo galactic magnetic field galactic noise galactic plane galactic rotation galactose Galatea GALAXIES galaxy galaxy cannibalism galaxy classification galaxy formation galaxy interaction galaxy merger Galaxy, The Galaxy satellite series Gale Crater Galen (c. 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(1930 ---RRB- Garuda gas gas chromatography gas constant gas giant gas laws gas - bounded nebula gaseous nebula gaseous propellant gaseous - propellant rocket engine gasoline Gaspra (minor planet 951) Gassendi, Pierre (1592 — 1655) gastric juice gastrin gastrocnemius gastroenteritis gastrointestinal tract gastropod gastrulation Gatewood, George D. (1940 ---RRB- Gauer - Henry reflex gauge boson gauge theory gauss (unit) Gauss, Carl Friedrich (1777 — 1855) Gaussian distribution Gay - Lussac, Joseph Louis (1778 — 1850) GCOM (Global Change Observing Mission) Geber (c. 720 — 815) gegenschein Geiger, Hans Wilhelm (1882 — 1945) Geiger - Müller counter Giessler tube gel gelatin Gelfond's theorem Gell - Mann, Murray (1929 ---RRB- GEM «gemination,» of martian canals Geminga Gemini (constellation) Gemini Observatory Gemini Project Gemini - Titan II gemstone gene gene expression gene mapping gene pool gene therapy gene transfer General Catalogue of Variable Stars (GCVS) general precession general theory of relativity generation ship generator Genesis (inflatable orbiting module) Genesis (sample return probe) genetic code genetic counseling genetic disorder genetic drift genetic engineering genetic marker genetic material genetic pool genetic recombination genetics GENETICS AND HEREDITY Geneva Extrasolar Planet Search Program genome genome, interstellar transmission of genotype gentian violet genus geoboard geode geodesic geodesy geodesy satellites geodetic precession Geographos (minor planet 1620) geography GEOGRAPHY Geo - IK geologic time geology GEOLOGY AND PLANETARY SCIENCE geomagnetic field geomagnetic storm geometric mean geometric sequence geometry GEOMETRY geometry puzzles geophysics GEOS (Geodetic Earth Orbiting Satellite) Geosat geostationary orbit geosynchronous orbit geosynchronous / geostationary transfer orbit (GTO) geosyncline Geotail (satellite) geotropism germ germ cells Germain, Sophie (1776 — 1831) German Rocket Society germanium germination Gesner, Konrad von (1516 — 1565) gestation Get Off the Earth puzzle Gettier problem geyser g - force GFO (Geosat Follow - On) GFZ - 1 (GeoForschungsZentrum) ghost crater Ghost Head Nebula (NGC 2080) ghost image Ghost of Jupiter (NGC 3242) Giacconi, Riccardo (1931 ---RRB- Giacobini - Zinner, Comet (Comet 21P /) Giaever, Ivar (1929 ---RRB- giant branch Giant Magellan Telescope giant molecular cloud giant planet giant star Giant's Causeway Giauque, William Francis (1895 — 1982) gibberellins Gibbs, Josiah Willard (1839 — 1903) Gibbs free energy Gibson, Edward G. (1936 ---RRB- Gilbert, William (1544 — 1603) gilbert (unit) Gilbreath's conjecture gilding gill gill (unit) Gilruth, Robert R. (1913 — 2000) gilsonite gimbal Ginga ginkgo Giotto (ESA Halley probe) GIRD (Gruppa Isutcheniya Reaktivnovo Dvisheniya) girder glacial drift glacial groove glacier gland Glaser, Donald Arthur (1926 — 2013) Glashow, Sheldon (1932 ---RRB- glass GLAST (Gamma - ray Large Area Space Telescope) Glauber, Johann Rudolf (1607 — 1670) glaucoma glauconite Glenn, John Herschel, Jr. (1921 ---RRB- Glenn Research Center Glennan, T (homas) Keith (1905 — 1995) glenoid cavity glia glial cell glider Gliese 229B Gliese 581 Gliese 67 (HD 10307, HIP 7918) Gliese 710 (HD 168442, HIP 89825) Gliese 86 Gliese 876 Gliese Catalogue glioma glissette glitch Global Astrometric Interferometer for Astrophysics (GAIA) Global Oscillation Network Group (GONG) Globalstar globe Globigerina globular cluster globular proteins globule globulin globus pallidus GLOMR (Global Low Orbiting Message Relay) GLONASS (Global Navigation Satellite System) glossopharyngeal nerve Gloster E. 28/39 glottis glow - worm glucagon glucocorticoid glucose glucoside gluon Glushko, Valentin Petrovitch (1908 — 1989) glutamic acid glutamine gluten gluteus maximus glycerol glycine glycogen glycol glycolysis glycoprotein glycosidic bond glycosuria glyoxysome GMS (Geosynchronous Meteorological Satellite) GMT (Greenwich Mean Time) Gnathostomata gneiss Go Go, No - go goblet cell GOCE (Gravity field and steady - state Ocean Circulation Explorer) God Goddard, Robert Hutchings (1882 — 1945) Goddard Institute for Space Studies Goddard Space Flight Center Gödel, Kurt (1906 — 1978) Gödel universe Godwin, Francis (1562 — 1633) GOES (Geostationary Operational Environmental Satellite) goethite goiter gold Gold, Thomas (1920 — 2004) Goldbach conjecture golden ratio (phi) Goldin, Daniel Saul (1940 ---RRB- gold - leaf electroscope Goldstone Tracking Facility Golgi, Camillo (1844 — 1926) Golgi apparatus Golomb, Solomon W. (1932 — 2016) golygon GOMS (Geostationary Operational Meteorological Satellite) gonad gonadotrophin - releasing hormone gonadotrophins Gondwanaland Gonets goniatite goniometer gonorrhea Goodricke, John (1764 — 1786) googol Gordian Knot Gordon, Richard Francis, Jr. (1929 — 2017) Gore, John Ellard (1845 — 1910) gorge gorilla Gorizont Gott loop Goudsmit, Samuel Abraham (1902 — 1978) Gould, Benjamin Apthorp (1824 — 1896) Gould, Stephen Jay (1941 — 2002) Gould Belt gout governor GPS (Global Positioning System) Graaf, Regnier de (1641 — 1673) Graafian follicle GRAB graben GRACE (Gravity Recovery and Climate Experiment) graceful graph gradient Graham, Ronald (1935 ---RRB- Graham, Thomas (1805 — 1869) Graham's law of diffusion Graham's number GRAIL (Gravity Recovery and Interior Laboratory) grain (cereal) grain (unit) gram gram - atom Gramme, Zénobe Théophile (1826 — 1901) gramophone Gram's stain Gran Telescopio Canarias (GTC) Granat Grand Tour grand unified theory (GUT) Grandfather Paradox Granit, Ragnar Arthur (1900 — 1991) granite granulation granule granulocyte graph graph theory graphene graphite GRAPHS AND GRAPH THEORY graptolite grass grassland gravel graveyard orbit gravimeter gravimetric analysis Gravitational Biology Facility gravitational collapse gravitational constant (G) gravitational instability gravitational lens gravitational life gravitational lock gravitational microlensing GRAVITATIONAL PHYSICS gravitational slingshot effect gravitational waves graviton gravity gravity gradient gravity gradient stabilization Gravity Probe A Gravity Probe B gravity - assist gray (Gy) gray goo gray matter grazing - incidence telescope Great Annihilator Great Attractor great circle Great Comets Great Hercules Cluster (M13, NGC 6205) Great Monad Great Observatories Great Red Spot Great Rift (in Milky Way) Great Rift Valley Great Square of Pegasus Great Wall greater omentum greatest elongation Green, George (1793 — 1841) Green, Nathaniel E. 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That is the traditional classification of materials based on their ability to conduct, partially conduct or not conduct electrical current.

If the current reaches a certain level, the neuron turns on, firing off an electrical impulse.

«Drugs that block the effects of myofibroblasts on the electrical or mechanical properties of heart tissue or that coax them to revert to fibroblasts might be more effective than current therapies,» says Guy M. Genin, PhD, associate professor of mechanical engineering and materials science in WUSTL's School of Engineering & Applied Science, who is one of three co-primary investigators (PI) on the grant.

This procedure entails placement of an electromagnetic coil on the scalp; high - intensity electrical current is rapidly turned on and off in the coil through the discharge of capacitors.

Instead, the MIT researchers found that shining light on a sheet of graphene, treated so that it had two regions with different electrical properties, creates a temperature difference that, in turn, generates a current.

NDCX II is a linear accelerator (linac) that operates on the principle of induction, in which electrical current in one winding induces a varying magnetic field in the second winding and thus transfers energy to a new current, as in a transformer.

Current rescue therapies for life - threatening arrhythmias ignore the pathological electro - anatomical substrate and base their efficacy on a generalized electrical discharge.