Emission sentence example
Each molecule need not radiate with increased energy, but the more brilliant emission of light may be due to the greater number of particles forming similar vibrating systems.
The emission spectrum shows two lines, Ka, a double line towards the infra-red, and Ka in the violet.
The figures for greenhouse gas emission faired no better.
Apart then from absorption there will be a discontinuous change in brightness in the apparent disk at that value of the angular radius d which corresponds to tangential emission from the upper lever r' of this mirage-forming region.
A current cause for concern is the emission of mercury from dental amalgams.Advertisement
Euro 4 emission compliant, it is fitted with a particulate filter.
Students generally use the gas Emission program after observing the spectra emitted by gas discharge tubes.
The advent of positron emission particle tracking (PEPT) has now made this possible.
The possibility of using ultra-intense lasers to produce commercial amounts of short-lived positron emitting sources for positron emission tomography (PET) is discussed.
The low and high redshift quasars are found very similar in their emission characteristics, although differences exist.Advertisement
The rectifier tube - The most common problem with rectifier tubes is either low or loss of emission or an open filament.
Radionuclide imaging including positron emission tomography (PET) and single photon emission tomography.
With the addition of the copper metal center in compound 2, the uranium emission is absent regardless of the excitation wavelength.
In order to find the whole emission of energy from one particle (T), we have to integrate the square of (3) over the surface of a sphere of radius r.
When an audible emission of breath attends its production the aspirate bh is formed.Advertisement
Fresnel's arguments in favour of that theory found little favour with Laplace, Poisson and Biot, the champions of the emission theory; but they were ardently espoused by Humboldt and by Arago, who had been appointed by the Academy to report on the paper.
Mobiles and Your Health Is the emission of radio waves from your mobile harmful to health?
High accuracy filter radiometers are used in thermal and optical metrology, for temperature measurements, photometry, and derivation of spectral emission.
The Rectifier Tube - The most common problem with rectifier tubes is either low or loss of emission or an open filament.
Cities are not the only sites of large-scale, human-caused water vapor emission.Advertisement
Positron emission tomography (PET)-A computerized diagnostic technique that uses radioactive substances to examine structures of the body.
Nader's "design dangers" rally produced union tension, and by 1973, the US had its first emission controls in place.
Governments worldwide are demanding more fuel-efficient, less emission output autos, as well as alternative fuel models.
It will also tell you about any problems with state emission inspections.
The latter is considered below; " The Black .,, it is i nd i cat i ve of the chemical elements from which the lines can proceed, and its state at the time of emission; the former is indicative only of the rate of loss of energy from the sun by radiation, and is inwoven with a remarkable group of physical theory and experiment, known as the theory of the black body, or as black radiation.Advertisement
The " black body " is an ideal body with surface so constituted as to reflect no part of any radiations that fall upon it; in the case of such a body Kirchhoff and Balfour Stewart showed that unless energy were to be lost the rate of emission and absorption must be in fixed ratio for each specific wave-length.
Over the following years these emission limits will be lowered to further encourage the driving of cars which pollute the atmosphere less.
The FPI observes the red line Aurora and airglow emission at 630nm wavelength.
The emission of X-ray bremsstrahlung radiatively cools this gas and should lead to its continued collapse in the cluster center.
Heating too will be out of the ordinary as a low emission wood combustor is to be installed.
Kirchhoff's second law A low-density gas will radiate an emission-line spectrum with an underlying emission continuum.
These coronagraphs produce images of the " emission line corona.
When a cluster of galaxies is the X-ray counterpart, radio emission from any cluster galaxy within the cluster is listed here.
A combination of a VCSEL sources and holographic diffusers will allow eyesafe emission of these power levels.
The other UK EfW plants have recorded similar low dioxin emission levels - equivalent to existing, background dioxin levels in urban soils.
Radioactivity The phenomenon whereby atoms undergo spontaneous random disintegration, usually accompanied by the emission of radiation.
The image was acquired using electron holography in a field emission gun transmission electron microscope.
It is believed Mr Blair will outline key future policies aimed at curbing the emission of the greenhouse gases that cause global warming.
For every minute my car engine was running, i was giving out X quantity of carbon emission.
It is important to understand the origin of the graphs and curves displaying the excitation and emission spectra for a given fluorochrome.
In the UK, board manufacturers are advertising low formaldehyde or zero formaldehyde emission boards made to the stringent German " E1 " standard.
A high intensity led ring light for forensic photography Narrow band emission in the blue, blue/green and green.
Failed emission test inspections elicit an emergency room visit for immediate engine liposuction.
The proponents of transgenic phytoremediation argued that mercury emissions from the treated sites would be below the current emission levels for elemental mercury.
Image was acquired using field emission gun scanning electron microscopy.
The fuel scale charge would be a multiplier of the emission level, with possibly a lower multiplier being used for less polluting vehicles.
The standard nebula filter takes out a larger chunk of emission from orange out to the start of the nebula filter takes out a larger chunk of emission from orange out to the start of the nebula emission lines.
Narrow bandpass filters also take out sky glow emission lines which also helps to improve the visual contrast of very faint nebulae.
The emission of most radionuclide neutron sources is not isotropic.
We address these objectives by producing albedo maps, and reflection and emission spectra, and observing stellar occultations.
Care must be taken to properly optimize cathode temperature to obtain the required emission without overheating the crystal.
The revised IPCC Guidelines document  was used to give a range of emission factors for nitrous oxide.
Bombardment with x-ray photons leads to the emission of electrons, these are called photoelectrons.
The marked linear polarization of the emission from the condensate is also measured.
Element The ion on which the emission redshift is based.
As Tom Jaworski, Esso CNG said Today we were able to get some serious answers on low emission vehicle residuals.
As a result, the low-frequency radio emission is affected by synchrotron self-absorption, giving cores a characteristically flat radio spectrum.
The spectrum is of the third type with bright hydrogen emission lines (see below, Spectra of Stars).
Meeting new emission standards The three-way catalyst has had an enormous impact on improving air quality.
A comparison of electron emission characteristics of LaB 6, CeB 6 and tungsten at typical operating temperatures.
Know your state's laws concerning vehicle emission testing and who is responsible for those costs.
The EPA requires that all catalytic stoves do not produce more than 4.1 grams of emission waste per hour, while non-catalytics cannot produce more than 7.5 grams.
Car and Rail - Rental car gift cards, gas cards, savings on vehicle purchases and carbon emission offset credits.
Each fuel has a unique combination of benefits such as availability, vehicle compatibility, energy efficiency, cost and emission reduction.
The usage and production emission statistics are recorded over a longer period of time.
While the initial cost of the cars can seem prohibitive, many states, like California, will offer a rebate and tax incentives for buying low and zero emission cars.
Pollution created by cars and light trucks accounts for nearly one-third of American carbon emission, and emissions of carbon dioxide from airplanes is responsible for an additional 3.5 percent of global warming.
It produces no emission nor does it generate solid waste, making it an all-around viable energy solution.
In some cultures, when the boy has his first semen emission, there is a ritual donning of his first sheath.
M. trifoliata is easy to establish by introducing pieces of stems, and securing them till, by the emission of roots, they have secured themselves.
Some electrophysiological tests are the auditory brainstem response (ABR) test, auditory steady-state response (ASSR) testing, electroencephalic audiometry (EEG) test, and otoacoustic emission testing (OAE).
Otoacoustic emission testing (OAE) records spontaneous emissions from the ear and can detect middle ear problems.
It is simpler than ABR, and it can be used to screen infants for severe hearing losses, since if hearing loss of greater than 40 dBs exist, no emission will be recorded.
Magnetic resonance imaging (MRIs), PET scans, and single-photon emission computed tomography (SPECT) scans have been used by researchers, however, to study the brains of patients diagnosed with Tourette syndrome.
Researchers have used magnetic resonance imaging (MRI) and positron emission tomography (PET) to find subtle differences in the brain structure and function of children with these disorders.
Otoacoustic emission (OAE)-Sounds or echoes created by vibrations of hair cells in the cochlea in response to sound; used to screen for hearing impairment in newborns.
Imaging techniques include computed tomography scan (CT scan), positron emission tomography (PET), or magnetic resonance imaging (MRI) scans.
Positron emission tomography (PET) and single photon emission tomography (SPECT) monitor blood flow and chemical activity in the brain area being tested.
They award grants for various environmental protection activities such as water pollution prevention, wetlands protection, tribal preservation, testing new environmental safety products, engine emission reduction programs and more.
Governments are also expected to have an effect on standards for automakers, ensuring fuel efficiency and low emission output.
Initial indications are that the emission was caused by collapse at the summit crater.
On the emission theory the velocity should be accelerated by an increase of density in the medium; on the wave theory, it should be retarded.
He taught, previous to the Polish physicist Witclo, that vision does not result from the emission of rays from the eye, and wrote also on the refraction of light, especially on atmospheric refraction, showing, e.g.
The enclosed area for each temperature represents the total emission of energy for that temperature, the abscissae are the wavelengths, and the ordinates the corresponding intensities of emission for that wave-length.
On the other hand, the theory encounters a very serious difficulty in the fact that all molecules possess a great number of possibilities of internal motion, as is shown by the number of distinct lines in their spectra both of emission and of absorption.
Poisonous or noxious animals usually have some special advertising attribute, sometimes the display of conspicuous coloration, as in the skunk; sometimes the emission of sound as in the rattlesnake; sometimes a combination of the two, as in the common porcupine and the large black scorpions of Africa and India.
The lines are broadened (as was already known), the intensity of emission is much increased, but some are weakened and some strengthened, nor is the amount of broadening the same for all lines, nor is it always symmetrical, being sometimes greater on the red side; but besides the effect of unsymmetrical broadening, every line is displaced towards the red; different lines again behave differently, and they may be arranged somewhat roughly in a few groups according to their behaviour; reversals are also effected, and the reversed line does not always correspond with the most intense part of the emission line.
The greater µ is, the greater would be the value of d, the apparent angular radius, corresponding to horizontal emission from a given level r, and that whether we accept Schmidt's theory or not.
T Malus gave the name of polarization, as he attributed it, on the emission theory of light, to a kind of polarity of the light-corpuscles.
In addition to the above facts of polarization mention may be made of the partial polarization, in a plane perpendicular to that of emission, of the light emitted in an oblique direction from a white-hot solid, and of the polarization produced by diffraction.
Paschen proved that the emission spectra of water vapour as observed in an oxyhydrogen flame, and of carbon dioxide as observed in a hydrocarbon flame may be obtained by heating aqueous vapour and carbon dioxide respectively to a few hundred degrees above the freezing point.
Enclosing the photosphere is a truly gaseous envelope which is called the chromosphere, and which shows a spectrum of bright lines when we can isolate its emission from that of the photosphere.
A few of the lines show a double reversal, the dark absorption line being greatly increased in breadth and showing a bright emission line in its centre.
On the 3rd of February 1793 he had decreed the emission of Boo millions of assignats, for the expenses of the war.
The helium formations do not reach the sun's limb, and it is another puzzling detail that the spectrum of the disk shows no absorption line of anything like an intensity to correspond with the emission line of helium in the chromosphere.
In 1877 a financial crisis occurred, met by the emission of paper money, but the depression was only temporary, and the country soon rallied from the effects.
The eggs, which are 16 in number, are deposited in a leathery capsule fixed by a gum-like substance to the abdomen of the female, and thus carried about till the young are ready to escape, when the capsule becomes softened by the emission of a fluid substance.
The experiment proves only the transparency of the gases experimented upon, and this is confirmed by the fact that bodies like bromine and iodine give on heating an emission spectrum corresponding to the absorption spectrum seen at ordinary temperatures.
On the tree being lifted from its hole the roots should be examined, and all which have been severed roughly with the spade should have the ends cut smooth with the knife to facilitate the emission of fibres.
Sodium is most distinctly recognized by the yellow coloration which volatile salts impart to a Bunsen flame, or, better, by its emission spectrum which has a line (double), the Fraunhofer D, line, in the yellow (the wave-lengths are 5896 and 5890).
On the 25th of April 1900 a law was enacted for the regulation of the constitution, capital, note emission and metallic reserves of banks.
Finally, a fifth type has been added, the Wolf-Rayet stars; these show a spectrum crossed by the usual dark lines and bands, but showing also bright emission bands of blue and yellow light.
This need not necessarily be interpreted as indicating the impossibility of rendering gases luminous by temperature only, for the transparency of the gas for luminous radiations may be such that the emission is too weak to be detected.
The integrated emission of energy is given by the area of the outer smoothed curve (4), and the conclusion from this one holograph is that the " solar constant " is 2.54 calories.
Pringsheim, who, by a series of experiments of undoubted merit, tried to establish that the emission of the line spectra of the alkali metals was invariably associated with a reduction of the metallic oxide.
This production is not a physical process, but an emission of force; and, since the product has real existence only in virtue of the original existence working in it, Neoplatonism may be described as a species of dynamic pantheism.
It was formerly the custom to include with the Fungi the Schizomycetes or Bacteria, and the Myxomycetes or Mycetozoa; but the peculiar mode of growth and division, the cilia, spores and other peculiarities of the former, and the emission of naked amoeboid masses of protoplasm, which creep and fuse to streaming plasmodia, with special modes of nutrition and spore-formation of the latter, have led to their separation as groups of organisms independent of the true Fungi.
The amplitude of the fork was observed when the sound just ceased to be audible at 27.4 metres away, and the rate of energy emission from the resonator was calculated to be 42 .