نتایج جستجو برای: npp

تعداد نتایج: 2522  

2009

For a country that does not yet use nuclear power, the introduction and development of nuclear power is a major undertaking. It requires the country to build the necessary infrastructure so it can construct and operate a nuclear power plant (NPP) profitably in a safe, secure and technically sound manner. A major part of the necessary infrastructure is the electric grid to which the NPP will con...

2017
Tan Chen Qiuhao Huang Miao Liu Manchun Li Shulin Deng Dong Chen

Regional ecosystems have been greatly affected by the rapid expansion of urban areas. In order to explore the impact of land use change on net primary productivity (NPP) in rapidly developing cities during the current urbanization process, we quantified land use change in Liaoning province between 2000 and 2010 using net primary productivity as an indicator of ecosystem productivity and health....

2008
Julian L. Rrushi Roy H. Campbell

This paper proposes an unconventional anomaly detection approach that provides digital instrumentation and control (I&C) systems in a nuclear power plant (NPP) with the capability to probabilistically discern between legitimate protocol frames and attack frames. The stochastic activity network (SAN) formalism is used to model the fusion of protocol activity in each digital I&C system and the op...

2014
Chuanjiang Tang Xinyu Fu Dong Jiang Jingying Fu Xinyue Zhang Su Zhou

Net primary productivity (NPP) is an important indicator for grassland resource management and sustainable development. In this paper, the NPP of Sichuan grasslands was estimated by the Carnegie-Ames-Stanford Approach (CASA) model. The results were validated with in situ data. The overall precision reached 70%; alpine meadow had the highest precision at greater than 75%, among the three types o...

Journal: :Poultry science 2006
R Angel W W Saylor A D Mitchell W Powers T J Applegate

Three floor pen experiments (Exp) were conducted to evaluate low nonphytin P (NPP) concentrations and the NPP sparing effect of phytase (PHY) and 25-hydroxycholecalciferol (25D) on bone mineralization, bone breaking during commercial processing, litter P, and water-soluble P (WSP) concentrations. Tested treatments (TRT) were control, National Research Council NPP; University of Maryland (UMD) N...

2016
Weiwei Fu James T. Randerson

We examine climate change impacts on net primary production (NPP) and export production (sinking particulate flux; EP) with simulations from nine Earth system models (ESMs) performed in the framework of the fifth phase of the Coupled Model Intercomparison Project (CMIP5). Global NPP and EP are reduced by the end of the century for the intense warming scenario of Representative Concentration Pat...

Journal: :Poultry science 2002
G Q Lan N Abdullah S Jalaludin Y W Ho

We evaluated the efficacy of supplementation of active Mitsuokella jalaludinii culture (AMJC) on the growth performance, nutrient use, and mineral concentrations in tibia bone and plasma of broiler chickens fed corn-soybean meal diets. Dietary treatments included low-nonphytate P (NPP) feed (containing 0.24% and 0.232% NPP for chicks from 1 to 21 and 22 to 42 d of age, respectively), low-NPP fe...

Journal: :Remote Sensing 2017
Xiaobin Guan Huanfeng Shen Wenxia Gan Gang Yang Lunche Wang Xinghua Li Liangpei Zhang

Knowledge of regional net primary productivity (NPP) is important for the systematic understanding of the global carbon cycle. In this study, multi-source data were employed to conduct a regional NPP study in southwest China, with a 33-year time span and a 1-km scale. A multi-sensor fusion framework was applied to obtain a new normalized difference vegetation index (NDVI) time series from 1982 ...

2014
Shufen Pan Hanqin Tian Shree R. S. Dangal Chi Zhang Jia Yang Bo Tao Zhiyun Ouyang Xiaoke Wang Chaoqun Lu Wei Ren Kamaljit Banger Qichun Yang Bowen Zhang Xia Li

Quantitative information on the response of global terrestrial net primary production (NPP) to climate change and increasing atmospheric CO2 is essential for climate change adaptation and mitigation in the 21st century. Using a process-based ecosystem model (the Dynamic Land Ecosystem Model, DLEM), we quantified the magnitude and spatiotemporal variations of contemporary (2000s) global NPP, and...

Journal: :Remote Sensing 2018
Tao Yu Rui Sun Zhiqiang Xiao Qiang Zhang Gang Liu Tianxiang Cui Juanmin Wang

Accurately estimating vegetation productivity is important in research on terrestrial ecosystems, carbon cycles and climate change. Eight-day gross primary production (GPP) and annual net primary production (NPP) are contained in MODerate Resolution Imaging Spectroradiometer (MODIS) products (MOD17), which are considered the first operational datasets for monitoring global vegetation productivi...

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