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205篇 您的检索式:作者名="GENG N"
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1California Simulation of Evapotranspiration of Applied Water and Agricultural Energy Use in California显示文摘The California Simulation of Evapotranspiration of Applied Water (Cal-SIMETAW) model is a new tool developed by the California Department of Water Resources and the University of California, Davis to perform daily soil water balance and determine crop evapotranspiration (ET c ), evapotranspiration of applied water (ET aw ), and applied water (AW) for use in California water resources planning. ET aw is a seasonal estimate of the water needed to irrigate a crop assuming 100% irrigation efficiency. The model accounts for soils, crop coefficients, rooting depths, seepage, etc. that influence crop water balance. It provides spatial soil and climate information and it uses historical crop and land-use category information to provide seasonal water balance estimates by combinations of detailed analysis unit and county (DAU/County) over California. The result is a large data base of ET c and ET aw that will be used to update information in the new California Water Plan (CWP). The application uses the daily climate data, i.e., maximum (T x ) and minimum (T n ) temperature and precipitation (P cp ), which were derived from monthly USDA-NRCS PRISM data (PRISM Group 2011) and daily US National Climate Data Center (NCDC) climate station data to cover California on a 4 km×4 km change grid spacing. The application uses daily weather data to determine reference evapotranspiration (ET o ), using the Hargreaves-Samani (HS) equation (Hargreaves and Samani 1982, 1985). Because the HS equation is based on temperature only, ET o from the HS equation were compared with CIMIS ET o at the same locations using available CIMIS data to determine correction factors to estimate CIMIS ET o from the HS ET o to account for spatial climate differences. Cal-SIMETAW also employs near real-time reference evapotranspiration (ET o ) information from Spatial CIMIS, which is a model that combines weather station data and remote sensing to provide a grid of ET o information. A second database containing the available soil water holding capacity and soil depth information for all of California was also developed from the USDA-NRCS SSURGO database. The Cal-SIMETAW program also has the ability to generate daily weather data from monthly mean values for use in studying climate change scenarios and their possible impacts on water demand in the state. The key objective of this project is to improve the accuracy of water use estimates for the California Water Plan (CWP), which provides a comprehensive report on water supply, demand, and management in California. In this paper, we will discuss the model and how it determines ET aw for use in water resources planning.Morteza N Orang Richard L Snyder Shu Geng Quinn J Hart Sara Sarreshteh Matthias Falk Dylan Beaudette Scott Hayes Simon Eching 2013Journal of Integrative Agriculture2013,12,8:3
2Fast multipole method for scattering from an arbitrary PEC target above or buried in a lossy halfspace 显示文摘 A Sullivan and L Carin 2001IEEE Trans AP2001,49,5:1
3Ultra-wideband synthetic-aperture radar for mine-field detection显示文摘 Geng N McClure M 1999IEEE Antennas and Propagation Magazine1999,41,1:1
4Hypoxia inhibits the differentiation of mesenchymal stem cells into osteoblasts by activation of Notch signaling显示文摘Xu N Liu H Qu F Fan J Mao K Yin Y Liu J Geng Z Wang Y 0,,:1
5Influence of Fly Ash Addition on the Hydration of Portland Cement显示文摘Influence of fly ash addition on the hydrationof Portland cement clinker,particularly at the initial stage,has been studied on the basis of measured data obtained. Fly ash,considering its active components,was added as a partial replacement of Portland cement at different water/cementitious ratios. The hydration heat was measured in a controlled environmental room of 20 ℃. Both non-evaporable water content and mineral phase were investigated. Data indicate that the amount of fly ash involved in hydration reaction is little at initial stage while it becomes more after 7 d hydration. As hydration reaction is a continuous process,chemical stress results in the disruption of stable structure on the surface of fly ash consisting of Ca,O,Si,Al,C,etc. Additionally,surface of glass beads begins to lose smooth and reacts to blend in with the paste.GENG H N SHUI Z H 2010武汉理工大学学报2010,32,17:1
6Treatment of intractable anorexia nervosa with inactivation of the nucleus accumbens using stereotactic surgery显示文摘Wang J Chang CW Geng N 2013Stereotact Funct Neurosurg2013,91,6:1
7Materials Science and Engineering A显示文摘Zhang H W Geng Lin Guan L N 2010528: 5132010,528,:1
8Treatment of intractable anorexia nervosa with inactivation of the nucleus accumbens using stereotactic surgery显示文摘Wang J Chang CC Geng N 2013Stereotact Funct Neurosurg2013,91,6:1
9In vitro fibrinolytie phytosterols isolated from the roots of Spatholobus suberetus 显示文摘Yoshiyasu F Yoshinori N Geng P W 1988Planta Med1988,54,1:1
10In vitro fibrinolytic Phytosterols isolated from the Spatholobus suberetus显示文摘yoshiyasu F yoshinor I N geng P W 1988Planta Med1988,54,3:1
11Fast multipole method for scattering from an arbitrary PEC target above or buried in a lossy half space 显示文摘Geng N Sullivan A Carin L 2001IEEE Transactions on Antennas and Propagation2001,49,5:1
12Exosomes of BV-2 cells induced by alpha-synuclein:important mediator of neurodegeneration in PD显示文摘Chang C Lang H Geng N 0,,:1
13Tracking multiple visual targets via particle-based belief propagation显示文摘Xue J Zheng N Geng J 2008IEEE Transactions on SMC Part B2008,38,1:1
14A simulation model for ET of applied water显示文摘Snyder R L Geng S Orang M N 2004Acta Horticulturae2004,664,:1
15Oxidation behavior of al- loy 718 at a high temperature 显示文摘Geng L Na Y S Park N K 2007Materials & Design2007,28,3:1
16Microstructure and tensile properties of Al hybrid composites reinforced with SiC whiskers and SiC nanoparticles显示文摘 GENG L WANG G S 2003Key Engineering Materials2003,249,:1
17Ultra-wide-band synthetic-aperture radar for mine-field detection显示文摘Carin L Geng N MeClure M 1999IEEE Antennas and Propagation Magazine1999,41,1:1
18Association of PNPLA3 I148M variant with chronic viral hepatitis, autoimmune liver diseases and outcomes of liver transplantation 显示文摘Geng N Xin YN Xia HH 2015Hepat Mon2015,15,26:1
19Remote sensing rock mechanics (RSRM) and associated experimental studies显示文摘WU L X CUI C Y GENG N G 2000International Journal of Rock Mechanics and Mining Sciences2000,37,6:1
20Newmethod ofbioremediation-mycorrhizosphere bioremediation显示文摘Geng C N Li P J Han G Y 2001Technigues and Equipment for Environmental Pollution Control2001,2,5:1
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