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Page "Atomic absorption spectroscopy" ¶ 41
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Electrodeless and lamps
* Examples of Electrodeless lamps

Electrodeless and .
Electrodeless plasma excitation methods include helicon plasma sources, inductively coupled plasmas, and surface-wave-sustained discharges.

discharge and lamps
Deuterium HCL or even hydrogen HCL and deuterium discharge lamps are used in LS AAS for background correction purposes.
* gas discharge lamps, e. g., fluorescent lights and compact fluorescent lamps, neon lamps, flood lamps, modern photographic flashes
Improvements since then have largely been better phosphors, longer life, and more consistent internal discharge, and easier-to-use shapes ( such as compact fluorescent lamps ).
Some high-intensity discharge ( HID ) lamps couple their even-greater electrical efficiency with phosphor enhancement for better color rendition.
Neon gives a distinct reddish-orange glow when used in either low-voltage neon glow lamps or in high-voltage discharge tubes or neon advertising signs.
Pumping may be achieved with electrical currents ( e. g. semiconductors, or gases via high-voltage discharges ) or with light, generated by discharge lamps or by other lasers ( semiconductor lasers ).
Because of their inefficiency, incandescent light bulbs are gradually being replaced in many applications by other types of electric lights, such as fluorescent lamps, compact fluorescent lamps ( CFL ), cold cathode fluorescent lamps ( CCFL ), high-intensity discharge lamps, and light-emitting diodes ( LEDs ).
* 1893 Nikola Tesla uses cordless low pressure gas discharge lamps, powered by a high frequency electric field, to light his laboratory.
He displays fluorescent lamps and gas discharge lamps at the World Columbian Exposition.
Category: Gas discharge lamps
Category: Gas discharge lamps
Siemens ' OSRAM subsidiary produces lighting products including incandescent, halogen, compact fluorescent, fluorescent, high-intensity discharge and Xenon lamps ; opto-electronic semiconductor light sources such as light emitting diodes ( LEDs ), organic LEDs, high power laser diodes, LED systems and LED luminaires ; electronic equipment including electronic ballasts ; lighting control and management systems ; and related precision components.
They are used in gas discharge lamps such as neon lamps, discharge tubes, and some types of vacuum tube.
Neon lamps primarily rely on excitation of gas molecules to emit light ; CCFLs use a discharge in mercury vapor to develop ultraviolet light, which in turn causes a fluorescent coating on the inside of the lamp to emit visible light.

discharge and contain
* Water pollution, by the discharge of wastewater from commercial and industrial waste ( intentionally or through spills ) into surface waters ; discharges of untreated domestic sewage, and chemical contaminants, such as chlorine, from treated sewage ; release of waste and contaminants into surface runoff flowing to surface waters ( including urban runoff and agricultural runoff, which may contain chemical fertilizers and pesticides ); waste disposal and leaching into groundwater ; eutrophication and littering.
Acute and chronic sinusitis may be accompanied by thick nasal discharge that is usually green in color and may contain pus ( purulent ) and / or blood.
The supporting cells contain chemosensors, which, together with the mechanoreceptor on the cnidocyte ( cnidocil ), allow only the right combination of stimuli to cause discharge, such as prey swimming, and chemicals found in prey cuticle or cuteous.
Abandoned nests often contain " caeacal " droppings '; the discharge from the hens appendixes built up over the incubation period.
Effluent – Liquid, industrial discharge that usually contain varying chemical toxicants.
It should prevent the release of excessive fumes ( being either sealed or vented ), contain fires and isolate the contents from sources of ignition, be grounded ( to prevent sparks and static discharge ).
Patterson, widely criticized for his failure to contain the enemy forces, received an honorable discharge and mustered out of the Army in late July 1861.
Officers did not receive discharge papers in the same way as ordinary soldiers, whose documents contain a wealth of interesting information.

discharge and small
This test, called the whiff test, is performed by adding a small amount of potassium hydroxide to a microscopic slide containing the vaginal discharge.
There are typically strict regulations in most countries regarding disposal in landfill and discharge into water as even small amount of lubricant can contaminate a large amount of water.
These include molding and plating, wet etching ( KOH, TMAH ) and dry etching ( RIE and DRIE ), electro discharge machining ( EDM ), and other technologies capable of manufacturing small devices.
Hertz had been surprised to find that it was not necessary to discharge large batteries through one of these spirals in order to obtain sparks in the other ; that small Leyden jars amply sufficed for this purpose, and that even the discharge of a small induction coil would do, provided it had to spring across a spark gap.
For a small basin in the Italian Alps ( area = 1. 76 km² ) affected by a debris flow, Chiarle and Luino ( 1998 ) estimated a peak discharge of 750 m < sup > 3 </ sup >/ s for a section located in the middle stretch of the main channel.
Localized irrigation is a system where water is distributed under low pressure through a piped network, in a pre-determined pattern, and applied as a small discharge to each plant or adjacent to it.
Under these governors, the great and small councils continued to discharge municipal business and to administer the Paduan law, contained in the statutes of 1276 and 1362.
Static discharge from charged toner particles can ignite dust in the vacuum cleaner bag or create a small explosion if sufficient toner is airborne.
As a natural part of the printing process, the high voltages inside the printer can produce a corona discharge that generates a small amount of ionized oxygen and nitrogen, forming ozone and nitrogen oxides.
The forcible discharge of single spores termed ballistospores involves formation of a small drop of water ( Buller's drop ), which upon contact with the spore leads to its projectile release with an initial acceleration of more than 10, 000 g. Other fungi rely on alternative mechanisms for spore release, such as external mechanical forces, exemplified by puffballs.
A person carrying a relatively small electric charge may not feel a discharge that is sufficient to damage sensitive electronic components.
A corona discharge occurs between a highly curved electrode, for example the tip of a needle or a small diameter wire, and an electrode of low curvature such as a flat plate.
However, for small discharge energies the models are inadequate to explain the experimental data.
The authors ' simulations showed how they might explain EDM better than a thermal model ( melting and / or evaporation ), especially for small discharge energies, which are typically used in μ-EDM and in finishing operations.
Self-quenching or internal-quenching tubes stop the discharge without external assistance, by means of the addition of a small amount of a polyatomic organic vapor such as butane or ethanol ; or alternatively a halogen such as bromine or chlorine.
) and the offence is category 4 ( the production of 9 plants or less, assuming 40g or less per plant ) the starting point for sentencing is a ' band c fine ' ( 150 % of your weekly income, after tax ), decreasing to ' discharge ' or increasing to ' low level community order ' ( community service, curfew, attendance centre or similar for a small amount of time ) depending on other mitigating or aggravating factors such as theft of electricity, the presence of children or whether the offender has grown the plants for use in the treatment of a valid medical condition.
This resistor should consume a current large enough to discharge the capacitor in a reasonable time, but small enough to minimize unnecessary power waste.
The tidal ranges in the Río de la Plata are small, but its large width allows for a tidal prism important enough to dominate the flow regime despite the huge discharge received by the tributary rivers.
* Wet deposits of ash on high voltage insulators can initiate a leakage current ( small amount of current flow across the insulator surface ) which, if sufficient current is achieved, can cause ‘ flashover ’ ( the unintended electrical discharge around or over the surface of an insulating material ).
Typically, a small tube connected to either the suction or the discharge of the pump will help circulate the liquid.
After receiving a hardship discharge in 1972, following his father's heart attack, Issa earned his General Educational Development ( GED ) certificate and began taking classes at Siena Heights University, a small Catholic college in Adrian, Michigan.

4.000 seconds.