For field ion microscopy a gas is introduced, known as the imaging gas, into the chamber at very low pressures.

In the late 20th century, the processing of by-products from the Lacq natural gas field near Pau became important, although Bayonne has had higher-than-average unemployment.

Suppose the vector field describes the velocity field of a fluid flow ( such as a large tank of liquid or gas ) and a small ball is located within the fluid or gas ( the centre of the ball being fixed at a certain point ).

However, once the applied electric field approaches the breakdown value, free electrons become sufficiently accelerated by the electric field to create additional free electrons by colliding, and ionizing, neutral gas atoms or molecules in a process called avalanche breakdown.

In the early cold cathode vacuum tubes, called Crookes tubes, this was done by using a high electrical potential between the anode and the cathode to ionize the residual gas in the tube ; the ions were accelerated by the electric field and released electrons when they collided with the cathode.

An electron avalanche happens between two unconnected electrodes in a gas when an electric field exceeds a certain theshold.

The imaging gas atoms ( He, Ne ) near the tip are polarized by the field and since the field is non-uniform the polarized atoms are attracted towards the tip surface.

Since this gas is in approximate hydrostatic equilibrium with the overall cluster gravitational field, the total mass distribution can be determined.

For this helium conservation program, the Bureau built a pipeline from Bushton, Kansas, to connect those plants with the government's partially depleted Cliffside gas field, near Amarillo, Texas.

This helium-nitrogen mixture was injected and stored in the Cliffside gas field until needed, when it then was further purified.

In 2010, Hezbollah claimed that the Dalit and Tamar gas field, discovered by Noble Energy roughly west of Haifa in Israeli exclusive economic zone, belong to Lebanon, and warned Israel against extracting gas from them.

The first is that many of the gas piston modifications for the M4 isolate the piston so that piston jams or related malfunction require the entire weapon be disassembled, such disassembly cannot be performed by the end user and requires a qualified armorer to perform out of field, whereas any malfunction with the direct-impingement system can be fixed by the end user in field.

Likewise, cold-cathode gauges may be reluctant to start at very low pressures, in that the near-absence of a gas makes it difficult to establish an electrode current-in particular in Penning gauges, which use an axially symmetric magnetic field to create path lengths for ions that are of the order of metres.

* The Yadana Project is a project to exploit the Yadana gas field in the Andaman Sea and to carry natural gas to Thailand through Myanmar.

:" The region above the ionosphere in which the magnetic field of the earth has a dominant control over the motions of gas and fast charged particles is known to extend out to a distance of the order of 10 earth radii ; it may appropriately be called the ' magnetosphere '.

The world's largest gas field is Qatar's offshore North Field, estimated to have 25 trillion cubic meters ( 9. 0

This arrangement had the purpose to prevent heated gas to reach the thermocouple by natural convection.

It had required the approval of President Franklin Delano Roosevelt before the John Harvey could be loaded with 100 tons of mustard gas and despatched to the Italian warfront.

Throughout the early years of World War 2,, reports persisted that the Axis powers had used gas -- Germany in Russia, Japan in China again.

One who had been a boy in Auschwitz had to tell how children had been selected by height for the gas chambers.

The cars must have had their gas pedals pushed down to the floor boards.

When I had my big job with the double headlights and yards of chrome, the gas people were happy to see me.

Something had to be done about the furnace, the fuel bills, the washing machine, the doctor and dentist bills, about making money stretch for food, for the mortgage, for taxes, for shoes, for half soles, for overshoes, for clothes, for the new leaks in the roof, for gas and light bills ; ;

Presently they had to give up running the furnace at full capacity and depend on the old coal range in the kitchen, which had never been removed when the new gas range was installed, and the fireplaces and an electric heater in Grandma's room.

Note that this pressure increase is more than a simple 10: 1 compression ratio would indicate ; this is because the gas is not only compressed, but the work done to compress the gas has also heated the gas and the hotter gas will have a greater pressure even if the volume had not changed.

By 2012, despite natural gas prices at a ten-year low and a higher Canadian dollar, oil prices had recovered enough to restart economic growth.

In 2005 Bulgaria had 2, 425 kilometers of natural gas pipelines, 339 kilometers of oil pipelines, and 156 kilometers of pipelines for refined products.

Heidelberg had just begun to install coal-gas street lighting, so the new laboratory building was also supplied with gas.

( Similar principles had been used in an earlier burner design by Michael Faraday as well as in a device patented in 1856 by the gas engineer R W Elsner.

Trade is vital to the Cypriot economy — the island is not self-sufficient in food and until the recent offshore gas discoveries had few known natural resources — and the trade deficit continues to grow.

As historian Eric Shaw noted of the years following nationalisation, the electricity and gas supply companies became “ impressive models of public enterprise ” in terms of efficiency, and the National Coal Board was not only profitable, but working conditions for miners had significantly improved as well.

Carnot had postulated that the fluid body could be any substance capable of expansion, such as vapor of water, vapor of alcohol, vapor of mercury, a permanent gas, or air, etc.

Concurrently, during a military operation in World War II, following a German air raid on the Italian harbour of Bari, several hundred people were accidentally exposed to mustard gas, which had been transported there by the allied forces to prepare for possible retaliation in the event of German use of chemical warfare.

In the final lap of the 2001 Cracker Barrel Old Country Store 500, Harvick beat Jeff Gordon by. 006 seconds, the same margin that Earnhardt had won over Bobby Labonte at the same race a year prior, and the images of Earnhardt's longtime gas man, Danny " Chocolate " Myers, crying after the victory, Harvick's tire-smoking burnout on the frontstretch with three fingers held aloft outside the driver's window, and the Fox television call by Mike Joy, Larry McReynolds, and Darrell Waltrip, concluding with " Gordon got loose, but he ( Harvick ) is gonna get him though, it's Harvick!

An acoustical interferometer has been constructed and used, with helium gas as the thermometric fluid, to measure temperatures near 4.2 and 2.1 Af.

In the gas phase, with Af of Af and Af of Af, quantum yields of the order of Af have been observed at 85-degrees.

It might be called the `` public utility '' type because of the considerable use to which it has been put in gas and electric utility rate cases.

`` From time to time since the present war began there have been reports that one or more of the Axis powers were seriously contemplating use of poisonous gas or noxious gases or other inhumane devices of warfare.

Although argon is a noble gas, it has been found to have the capability of forming some compounds.

Small amounts of coal, gas and petroleum have not yet been developed.

A new gas pipeline to Iran has been completed, and a road to Iran through the southern city of Meghri allows trade with that country.

In sequence, the most important products have been: fur, wheat and beef, and oil and gas.

Oil and gas exports have been possible because of increasing pipeline technology.

Recently there has been growing interest in hybrid electric buses, fuel cell buses, electric buses as well as ones powered by compressed natural gas or bio-diesel.

Cambodia has reported that oil and natural gas reserves have been found off-shore.

The most common compound of chlorine, sodium chloride, has been known since ancient times ; however, around 1630, chlorine gas was obtained by the Belgian chemist and physician Jan Baptist van Helmont.

This project has also been approved by the Executive Board of the United Nations Framework Convention on Climate Change ( UNFCCC ) for reduction of emission of methane gas into the climate and has been registered with a capacity of reducing 108, 686 metric tonnes CO2 equivalent per annum.

As most oil and gas has been in place for millions to tens of millions of years, depleted oil and gas reservoirs can contain carbon dioxide for millennia.

The most talked-about applications of these models in recent years have been their use to infer the consequences of increasing greenhouse gases in the atmosphere, primarily carbon dioxide ( see greenhouse gas ).

A more recent development has been a pulsed version of the CRESU, which requires far less gas and therefore smaller pumps.

It has been postulated that a gas high in ethylene, known to produce violent trances, came out of this opening, though this theory remains debatable.

The chemistry of dubnium has been studied for several years using gas thermochromatography.