نتایج جستجو برای: vapor

تعداد نتایج: 36299  

2017
Xuefang Zhao Alexandra M. Weber Ryan E. Mills

Although numerous algorithms have been developed to identify structural variations (SVs) in genomic sequences, there is a dearth of approaches that can be used to evaluate their results. This is significant as the accurate identification of structural variation is still an outstanding but important problem in genomics. The emergence of new sequencing technologies that generate longer sequence r...

2002
D. N. Moisseev R. F. Hanssen F. J. van Leijen

The knowledge of spatial distributions of water vapor is very important in atmospheric studies. Often satellite observations, for instance AVHRR, are used to study spatial distributions of water vapor. This method, however, has a limited spatial resolution of about 1 km and does not cover the entire atmospheric column. An alternative way to estimate the spatial behavior of the water vapor is to...

Journal: :Procedia environmental sciences 2011
Yijun Yao Kelly G Pennell Eric Suuberg

In many urban settings, groundwater contains volatile organic compounds, such as tricholoroethene, tetrachloroethene, benzene, etc., at concentrations that are at or slightly below non-potable groundwater standards. Some non-potable groundwater standards do not protect against human health risks that might result from vapor intrusion. Vapor intrusion is a process by which vapor phase contaminan...

Journal: :Applied optics 1973
D K Rice

An intracavity water vapor cell in conjunction with a CO laser was used to measure experimentally the absorptive losses introduced for nineteen of the laser emission lines. The results indicated that the existing theoretical models are inadequate for predicting actual absorptance values for water vapor partial pressures in excess of 100 Torr. The accepted spectral location of at least one water...

1999
Raymond T. Pierrehumbert

This article surveys the essential features of atmospheric water vapor dynamics needed to address current issues regarding the possible role of water vapor changes in mediating climate fluctuations on the millennial to Milankovic time scales. The focus is on the subtropics, which afford the most interesting possibilities for significant feedbacks. The observed distribution of water vapor, the a...

Journal: :IEEE Trans. Geoscience and Remote Sensing 1999
Umberto Amato Vincenzo Cuomo Italia De Feis Filomena Romano Carmine Serio Hirokazu Kobayashi

Radiances observed by the Interferometric Monitor for Greenhouse gases sounder have been used to retrieve temperature, water vapor, and ozone profiles. It is shown that the sounder allows us to simultaneously retrieve stable solutions for temperature and water vapor. Once water vapor and temperature have been retrieved, ozone profile may be estimated on the same fine vertical mesh as water vapo...

2011
M. Bahrami

ENSC 461 (S 11) Gas Vapor Mixtures and HVAC 1 Gas Vapor Mixtures and HVAC Atmospheric air normally contains some water vapor (moisture). The dry-air contains no water. Although the amount of water vapor in the air is small, it plays a major role in human comfort and thus in air-conditioning applications. The temperature of air in air-conditioning applications ranges from about -10 to 50°C. In t...

2010
Y. Yao K. G. Pennell

A three dimensional vapor intrusion model was used to investigate the amount of time required to reach steady-state vapor intrusion rates. The effect of pressure fluctuations on vapor intrusion rates was also investigated. These results were obtained for a homogenous soil conceptual site model with groundwater located at 25 feet below ground surface. The time to achieve steady state ranged from...

2009
M. T. Shervani-Tabar

Numerical and experimental results show that during the collapse phase of a vapor bubble near a rigid boundary, in the absence of strong buoyancy forces, a liquid micro jet is developed on the side of the bubble far from the rigid surface and directed towards it. Numerical and experimental results also show that, in the case of a bubble near a free surface, during the collapse phase of the bubb...

2004
V. Grewe A. Stenke

Introduction Conclusions References Tables Figures Back Close Abstract Introduction Conclusions References Tables Figures Back Close Abstract A transient model simulation from 1960 to 2000 with the coupled climate-chemistry model (CCM) ECHAM4.L39(DLR)/CHEM shows a stratospheric water vapor trend during the last two decades of +0.7 ppmv and additionally a short-term increase during volcanic erup...

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