نتایج جستجو برای: unaccounted
تعداد نتایج: 981 فیلتر نتایج به سال:
Credible climate change predictions require reliable fundamental scientific knowledge of the underlying processes. Despite extensive observational data accumulated to date, atmospheric aerosols still pose key uncertainties in the understanding of Earth's radiative balance due to direct interaction with radiation and because they modify clouds' properties. Specifically, major gaps exist in the u...
Several groups have recently claimed evidence for an unaccounted gamma-ray excess over the diffuse backgrounds at few GeV in the Fermi-LAT data in a region around the Galactic Center, consistent with a dark matter annihilation origin. We demonstrate that the main spectral and angular features of this excess can be reproduced if they are mostly due to inverse Compton emission from high-energy el...
Abstract At present, volume measurement is still used in transfer of natural gas China, so the calculation and management Unaccounted for Gas are based on measurement. With change method from to energy measurement, will be paid more attention. This paper investigates methods measures China other countries, compares research progress. The results show that: general principles countries basically...
The number of incidents unaccounted for in-state statistics is determined at 92.5%, and the problems arising as a result such are listed. structure interface an application developed by employees Southwestern State University, which geographic information system accumulating processing data on road accidents, presented. A list that must be entered into presented, well ability to sort required p...
Inter-comparisons of European air quality models show that regional transport models, including the EMEP (Cooperative Programme for monitoring and evaluation of the long-range transmission of air pollutants in Europe) aerosol model, tend to underestimate the observed concentrations of PM 10 and PM 2.5. Obviously, an accurate representation of the individual aerosol constituents is a prerequisit...
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