These regions may be initiated by field electron emission, but are then sustained by localized thermionic emission once a vacuum arc forms.

These same visible lines, accompanied by the emission lines of trivalent europium and trivalent terbium, and further accompanied by the emission continuum of divalent europium in the blue region, comprise the more discontinuous light emission of the modern trichromatic phosphor systems used in many compact fluorescent lamp and traditional lamps where better color rendition is a goal.

These typically consist of an excitation filter selecting the range of excitation wavelengths, a dichroic mirror, and an emission filter blocking the excitation light.

These climate models are used to investigate long-term climate shifts, such as what effects might be caused by human emission of greenhouse gases.

These operators can only exceed their allocations if they buy emission allowances, or offset their excesses through a mechanism that is agreed by all the parties to UNFCCC.

These included major controversy over the United States ' proposal to allow credit for carbon " sinks " in forests and agricultural lands, satisfying a major proportion of the U. S. emissions reductions in this way ; disagreements over consequences for non-compliance by countries that did not meet their emission reduction targets ; and difficulties in resolving how developing countries could obtain financial assistance to deal with adverse effects of climate change and meet their obligations to plan for measuring and possibly reducing greenhouse gas emissions.

These studies used mathematical models of several cities and their emission sources in order to compare the cost and effectiveness of various control strategies.

These last two decay mechanisms compete with stimulated emission reducing the efficiency of light amplification.

These steps include substituting markets in property rights, such as emission rights, for command and control.

These behave exactly like radio-quiet quasars with the addition of emission from a jet.

These classes are distinguished by rapidly variable, polarized optical, radio and X-ray emission.

These objects show nuclear and extended radio emission.

These electrons are directed by the focusing electrode toward the electron multiplier, where electrons are multiplied by the process of secondary emission.

These regions may be initiated by field electron emission, but are then sustained by localized thermionic emission once a vacuum arc forms.

These emission lines may come from the surface of the accretion disk itself, or may come from clouds of gas illuminated by the central engine in an ionization cone.

These benefits include less erosion possibilities, better water conservation, improvement in air quality due to less emission being produced, and a chance for larger biodiversity in a given area.

These objects show changing levels of low-energy, or " soft ", X-ray emission, probably produced somehow by variable transfer of mass from the normal star to the compact object.

These hypotheses are based on the observation that iron and levodopa, a pro-drug of dopamine that can cross the blood – brain barrier and is metabolized in the brain into dopamine ( as well as other mono-amine neurotransmitters of the catecholamine class ) can be used to treat RLS, levodopa being a medicine for treating hypodopaminergic ( low dopamine ) conditions such as Parkinson's disease, and also on findings from functional brain imaging ( such as positron emission tomography and functional magnetic resonance imaging ), autopsy series and animal experiments.

These emitted photons form the element's emission spectrum.

These definite characteristics allow elements to be identified by their atomic emission spectrum.

These lines never cease to haunt the book amidst all the exaltations of combat, and to make an appeal for a larger and more elemental human community than one based on the brutal necessities of war.

These problems frequently arise where a firm is making items for the Government not directly along the lines of its normal civilian business or where the Government specifications require operations that the firm did not understand when it undertook the contract.

These two product lines were the very first acrylic emulsion artists paints.

These fish can still, however, find their way around by means of their lateral lines, which are highly sensitive to fluctuating water pressure.

These BBSes often had multiple modems and phone lines, allowing several users to upload and download files at once.

These lines range from single to double to quadruple track.

These streetcar lines were replaced with bus routes in the 1930s and 1940s.

These bonds exist between two particular identifiable atoms, and have a direction in space, allowing them to be shown as single connecting lines between atoms in drawings, or modeled as sticks between spheres in models.

These include scouting, skirmishing with enemy reconnaissance elements to deny them knowledge of own disposition of troops, forward security, offensive reconnaissance by combat, defensive screening of friendly forces during retrograde movement, retreat, restoration of command and control, deception, battle handover and passage of lines, relief in place, linkup, breakout operations, and raiding.

These civilizations are delineated along cultural lines, for example, Western, Islamic, Sinic, Hindu and so on.

These lines are called secant lines.

These famous first lines of the Tao Te Ching state that the Tao is ineffable, i. e., the Tao is nameless, goes beyond distinctions, and transcends language.

These lines are ended with dollar signs, so that white space at the end of lines is clearly visible.

These three lines can be observed superimposed on the white continuum using a hand spectroscope, for light emitted by the usual white fluorescent tubes.

These messages were similar in form to Good Times, warning users not to open messages bearing particular subject lines.

These lines were closed in the 1970s.

These are next diffracted by a standardized salt crystal, with angular results read out as photographic lines by the exposure of an X-ray film fixed at the outside the vacuum tube at a known distance.

These are connected via T1 lines with the central office switch, replacing older analog two-way and direct inward dialing ( DID ) trunks.

These curves are referred to as TD lines.

These are like standard mazes except they use rules other than " don't cross the lines " to restrict motion.

These 25 lines could therefore reach 16 MB of physical memory with byte resolution.