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The use of the national groundwater model NAGROM for strategical planning of future availability of groundwater for different interests in the Netherlands 被引量:1
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《Global Geology》 1998年第1期98-98,共1页
关键词 The use of the national groundwater model NAGROM for strategical planning of future availability of groundwater for different interests in the Netherlands
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Compare the model of Iran national quality award and the EFQM model
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作者 Saleh Mojdehi 《Chinese Business Review》 2010年第9期61-64,共4页
Nowadays, there are a lot of challenges for global processing in countries economic companies. One of the important reasons is lack of changes that must be with world-class technology for making a competition in indus... Nowadays, there are a lot of challenges for global processing in countries economic companies. One of the important reasons is lack of changes that must be with world-class technology for making a competition in industry, and another important reason is lack of organized distinction for managers. Most of high rank managers don't have good points for charging and worry about it. In this essay, there have been excellence organized model of EFQM and Iran national quality award which are compared by a case study, and finally, it has suggested using a native model. 展开更多
关键词 model of lran national quality award EFQM SELF-EVALUATION
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Some Apocalypses of Legislative Model National Auditing to China
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作者 Changying Wang Xinyu Ye 《Chinese Business Review》 2003年第2期78-81,共4页
National Auditing is established to sustain the Superstructure and supervise the economic order. In this article, the relative content and basic characters of Legislative Model National Auditing will be analyzed and e... National Auditing is established to sustain the Superstructure and supervise the economic order. In this article, the relative content and basic characters of Legislative Model National Auditing will be analyzed and evaluated. Some apocalypses which are useful to the auditing reformation of our country hope to find. 展开更多
关键词 Legislative model Nation Auditing model Apocalypse
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Comparative study and error analysis of digital elevation model interpolations 被引量:1
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作者 陈吉龙 《Journal of Chongqing University》 CAS 2008年第4期277-283,共7页
Researchers in P.R.China commonly create triangulate irregular networks(TINs) from contours and then convert TINs into digital elevation models(DEMs).However,the DEM produced by this method can not precisely describe ... Researchers in P.R.China commonly create triangulate irregular networks(TINs) from contours and then convert TINs into digital elevation models(DEMs).However,the DEM produced by this method can not precisely describe and simulate key hydrological features such as rivers and drainage borders.Taking a hilly region in southwestern China as a research area and using ArcGISTM software,we analyzed the errors of different interpolations to obtain distributions of the errors and precisions of different algorithms and to provide references for DEM productions.The results show that different interpolation errors satisfy normal distributions,and large error exists near the structure line of the terrain.Furthermore,the results also show that the precision of a DEM interpolated with the Australian National University digital elevation model(ANUDEM) is higher than that interpolated with TIN.The DEM interpolated with TIN is acceptable for generating DEMs in the hilly region of southwestern China. 展开更多
关键词 digital elevation model (DEM) INTERPOLATION triangulate irregular network (TIN) Australian national University digital elevation model (ANUDEM)
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Model-based estimation of above-ground biomass in the miombo ecoregion of Zambia 被引量:1
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作者 James Halperin Valerie LeMay +2 位作者 Emmanuel Chidumayo Louis Verchot Peter Marshall 《Forest Ecosystems》 SCIE CSCD 2016年第4期258-274,共17页
Background:Information on above-ground biomass(AGB) is important for managing forest resource use at local levels,land management planning at regional levels,and carbon emissions reporting at national and internati... Background:Information on above-ground biomass(AGB) is important for managing forest resource use at local levels,land management planning at regional levels,and carbon emissions reporting at national and international levels.In many tropical developing countries,this information may be unreliable or at a scale too coarse for use at local levels.There is a vital need to provide estimates of AGB with quantifiable uncertainty that can facilitate land use management and policy development improvements.Model-based methods provide an efficient framework to estimate AGB.Methods:Using National Forest Inventory(NFI) data for a^1,000,000 ha study area in the miombo ecoregion,Zambia,we estimated AGB using predicted canopy cover,environmental data,disturbance data,and Landsat 8 OLI satellite imagery.We assessed different combinations of these datasets using three models,a semiparametric generalized additive model(GAM) and two nonlinear models(sigmoidal and exponential),employing a genetic algorithm for variable selection that minimized root mean square prediction error(RMSPE),calculated through cross-validation.We compared model fit statistics to a null model as a baseline estimation method.Using bootstrap resampling methods,we calculated 95% confidence intervals for each model and compared results to a simple estimate of mean AGB from the NFI ground plot data.Results:Canopy cover,soil moisture,and vegetation indices were consistently selected as predictor variables.The sigmoidal model and the GAM performed similarly;for both models the RMSPE was -36.8 tonnes per hectare(i.e.,57% of the mean).However,the sigmoidal model was approximately 30% more efficient than the GAM,assessed using bootstrapped variance estimates relative to a null model.After selecting the sigmoidal model,we estimated total AGB for the study area at 64,526,209 tonnes(+/- 477,730),with a confidence interval 20 times more precise than a simple designbased estimate.Conclusions:Our findings demonstrate that NFI data may be combined with freely available satellite imagery and soils data to estimate total AGB with quantifiable uncertainty,while also providing spatially explicit AGB maps useful for management,planning,and reporting purposes. 展开更多
关键词 national Forest Inventory Above-ground biomass Miombo REDD+ Generalized additive model Nonlinear model Landsat 8 OLI
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Personal Communication Freedom as a Problem and a Research Project
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作者 Sergey G Korkonosenko 《Journalism and Mass Communication》 2012年第1期317-328,共12页
This paper considers the integrated concept of personal communication freedom which did not appear earlier in the scientific literature as independent object of research. The author puts forward some hypotheses concer... This paper considers the integrated concept of personal communication freedom which did not appear earlier in the scientific literature as independent object of research. The author puts forward some hypotheses concerning the maintenance and the humanistic importance of communication freedom. The special attention is given to a category of the person which unites in it so-called writers, readers and all other people who have been not included in process of a mass communication. As a result of the theoretical analysis, he offers the program of complex research of this phenomenon and construction of model of mass communications which should be based on an ideal of personal freedom and should reflect national-cultural features of the social environment. In particular, it is a question of national-cultural model of media in Russia. 展开更多
关键词 PERSON FREEDOM mass communication national model
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On the Ideal Model for Development of National Literature
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《Social Sciences in China》 1999年第4期122-131,192,共11页
关键词 On the Ideal model for Development of national Literature
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Major National Standard Model of Yuejin Motor Group Corp
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《中国汽车(英文版)》 1997年第1期25-28,共4页
关键词 In 三一 Major national Standard model of Yuejin Motor Group Corp
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Analysis and Numerical Simulations of the Teleconnection Between Indian Summer Monsoon and Precipitation in North China 被引量:1
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作者 刘芸芸 丁一汇 《Acta meteorologica Sinica》 SCIE 2008年第4期489-501,共13页
In the early 1980s, Chinese meteorologists discovered the positive correlation in summer rainfall between India and North China and the correlation was later confirmed by some researches in and outside China. Based on... In the early 1980s, Chinese meteorologists discovered the positive correlation in summer rainfall between India and North China and the correlation was later confirmed by some researches in and outside China. Based on a variety of meteorological data from 1951 to 2005 and numerical simulations, the present study investigates such a correlation between Indian summer monsoon (ISM) and precipitation in North China. Furthermore, we discuss the intrinsic relations of the positive (Northwest India)-negative (the Tibetan Plateau)-positive (North China) precipitation anomaly teleconnection pattern from two aspects of thermal and dynamical factors, which not only confirms the precipitation teleconnection previously discovered again, but also reveals the influence mechanism of the ISM on the rainfall in North China. The results show that: (1) When the ISM is strong (weak), the precipitation in North China tends to be more (less) than normal; however, when the rainfall in North China is more (less) than normal, the probability of the strengthening (weakening) of the ISM is relatively lower. This implies that the ISM anomaly has more impact on the rainfall in North China. (2) The Indian low usually dominantly impacts the intensity of the ISM. When the Indian low deepens, the low troughs in mid-high latitudes are frequently strengthened, and the ridge of the western Pacific subtropical high (WPSH) extends westward. The southwesterly water vapor transport originated from low-latitudes and the southeasterly water vapor transport along the southwestern flank of the WPSH converge in North China, which is favorable for more rainfall there than normal, and vice versa. (3) The simulations from the regional climate model developed by National Climate Center (ReGCM_NCC) capture the salient feature of the precipitation teleconnection between India and North China. The simulated anomalous atmospheric existence of such a teleconnection from another circulations are close to observations, which confirms the angle. 展开更多
关键词 Indian summer monsoon summer precipitation North China TELECONNECTION regional climate model of the national Climate Center (ReGCM_NCC)
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