Издательство Wiley по названию
Отображаемые элементы 31975-31994 из 32023
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(1980-04-29)Occupying a place of honor in the Smithsonian Institution's National Air and Space Museum in Washington, D.C., is a black, dartlike, stubby‐winged craft that resembles a cross between a rocket and an airplane. The X‐15 is, ...
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(1995-02-15)Backscattering experiments at microwave frequencies were conducted off the west coast of Scotland in the summer of 1991. Using a dual‐polarization, eight‐frequency, X band, coherent scatterometer mounted on the bow of a ...
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(1973-04-10)Maar‐type volcanoes and their eroded remnants, diatremes, are believed to be terrestrial counterparts of crater chain rilles and possibly of the dark halo craters observed in lunar and Martian photographs. Some, but not ...
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(1966-01-01)In a series of heating experiments, xenon, radiogenic Xe129R, and krypton contents, and the xenon and krypton isotopic composition of the Bruderheim meteorite were studied for the separated minerals feldspar, pyroxene, ...
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(1966-01-15)Rowe and Kuroda [1965] presented their measurement of the isotopic composition and abundance of xenon in a sample of the Pasamonte meteorite in which fissiogenic xenon, presumably from the spontaneous fission of extinct ...
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(1992-10-23)The ACTIVNY satellite launched on Sept. 30, 1989 was a platform for a suite of active plasma experiments, including releases of Xe gas to test Alfvén's critical velocity effect. Three releases were done over Alaska and ...
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(1975-04-10)The isotopic compositions have been measured mass spectrometrically for xenon fractions released from the carbonaceous chondrite Murchison in stepwise heating experiments. Variation of the isotopic ratios was found to be ...
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(1974-09-10)Isotopic compositions have been measured mass spectrometrically for xenon fractions released from the carbonaceous chondrite Murray in stepwise heating experiments. The isotopic ratios varied quite considerably; for example, ...
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(1968-11-15)
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(1973-11-20)Bigg et al. [1972] reported dense and unusual collections of particles in the lower stratosphere on three occasions over the United States and four times over Australia. Pending more detailed analyses on the chemical nature ...
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(1962-06)Measurements made from the SR‐1 satellite confirm the hypothesis that solar X rays are the cause of flare SID events, and that variations in solar Lyman α are not geophysically significant. Results also indicate that active ...
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(1987-08-04)An instrument mounted on a satellite that is due to be launched into geostationary orbit in the early 1990s will greatly improve the forecasting of solar flares and the prediction o f hazards resulting from the flux of ...
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(1986-06-01)Balloon‐borne experiments using omnidirectional scintillation detectors that measured X ray with energies between 30 and 150 keV in the atmosphere were conducted during 1981 from São José dos Campos‐Brazil (geographic ...
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(1985-11-01)On January 4, 1978, at 1140 UT, a SuperArcas sounding rocket was launched from Siple Station, Antarctica (L = 4.2, 76°S, 84°W), during a geomagnetically disturbed period (Kp = 6−) with intense X ray and VLF chorus activity. ...
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(1994-07-15)We report here the first measurement of the reaction probability (ϕ) at 298 K for the reaction (1) HNO3(g) + NaCl(s) → HCl(g) + NaNO3(s), ϕ = (4±2) × 10−4, which was determined using X‐ray photoelectron spectroscopy to ...
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(1988-08-01)X rays from the Earth's auroral zone are produced by the precipitation of electrons with kilovolt energies. We have used an imaging X ray spectrometer to observe this radiation over a ∼500‐km field of view divided into 16 ...
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(1984-05-01)A second meteorite of probable lunar origin has been found among the several thousand meteorites recovered from Antarctica. It is number 791197 from the Yamato collection, which was recovered by an expedition from the ...
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(1984-12)The atmospheric CO2 concentrations at Amsterdam Island (37°41′S; 77°47′E) from October 1980 to November 1983 showed an increase rate of 0.11 ppm/month for a 3‐year average with considerable variability within each year: ...
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(1974-03-20)In order to understand better the processes responsible for maintaining the arctic climate, a study has been made of the energy budget at high latitudes. For simplicity this study is restricted to budget calculations for ...
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(1994-08-01)The Yellowstone hot spot has been identified mainly by its track of age‐progressive volcanics; many smaller scale tectonic features serve to hide the long‐wavelength hot spot‐related swell. By employing averaging and ...
Отображаемые элементы 31975-31994 из 32023