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浏览/检索结果: 共12条，第1-10条 帮助

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Responses of Runoff and Soil Loss to Rainfall Regimes and Soil Conservation Measures on Cultivated Slopes in a Hilly Region of Northern China 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2021, 卷号: 18, 期号: 4, 页码: 16
作者:  Fang, Haiyan
  |  收藏  |  浏览/下载：25/0  |  提交时间：2021/04/25
Responses of Runoff and Soil Loss to Rainfall Regimes and Soil Conservation Measures on Cultivated Slopes in a Hilly Region of Northern China 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2021, 卷号: 18, 期号: 4, 页码: 16
作者:  Fang, Haiyan
  |  收藏  |  浏览/下载：20/0  |  提交时间：2021/04/25
Spatiotemporal characteristics and influential factors of eco-efficiency in Chinese prefecture-level cities: A spatial panel econometric analysis 期刊论文  OAI收割
JOURNAL OF CLEANER PRODUCTION, 2020, 卷号: 260, 页码: 11
作者:  Ren, Yufei;  Fang, Chuanglin;  Li, Guangdong
  |  收藏  |  浏览/下载：27/0  |  提交时间：2021/03/23
Spatiotemporal characteristics and influential factors of eco-efficiency in Chinese prefecture-level cities: A spatial panel econometric analysis 期刊论文  OAI收割
JOURNAL OF CLEANER PRODUCTION, 2020, 卷号: 260, 页码: 11
作者:  Ren, Yufei;  Fang, Chuanglin;  Li, Guangdong
  |  收藏  |  浏览/下载：14/0  |  提交时间：2021/03/23
Spatiotemporal Dynamics of Ecological Total-Factor Energy Efficiency and Their Drivers in China at the Prefecture Level 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2019, 卷号: 16, 期号: 18, 页码: 23
作者:  Li, Guangdong
  |  收藏  |  浏览/下载：76/0  |  提交时间：2020/05/19
Spatiotemporal Dynamics of Ecological Total-Factor Energy Efficiency and Their Drivers in China at the Prefecture Level 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2019, 卷号: 16, 期号: 18, 页码: 23
作者:  Li, Guangdong
  |  收藏  |  浏览/下载：14/0  |  提交时间：2020/05/19
A New Approach to Classifier Fusion Based on Upper Integral 期刊论文  OAI收割
IEEE TRANSACTIONS ON CYBERNETICS, 2014, 卷号: 44, 期号: 5, 页码: 620-635
作者:  Wang, Xi-Zhao;  Wang, Ran;  Feng, Hui-Min;  Wang, Hua-Chao
收藏  |  浏览/下载：25/0  |  提交时间：2016/11/28
The registration of aerial infrared and visible images (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on Educational and Information Technology, ICEIT 2010, September 17, 2010 - September 19, 2010, Chongqing, China
作者:  Liu J.;  Wang Y.;  Wang Y.;  Wang Y.;  Wang Y.
收藏  |  浏览/下载：27/0  |  提交时间：2013/03/25
In order to solve the registration problem of different source image existed on aerial image fusion  algorithms based on Particle Swarm Optimization (PSO) are applied as search strategy in this paper  and Alignment Metric (AM) is used as judgment. This study has realized the different source image registration of infrared and visible light with high speed  high accuracy and high reliability. Basically  with little restriction of gray level properties  a new alignment measure is applied  which can efficiently measure the image registration extent and tolerate noise well. Even more  the intelligent optimization algorithm - Particle Swarm Optimization (PSO) is combined to improve the registration precision and rate of infrared and visible light. Experimental results indicate that  the study attains the registration accuracy of pixel level  and every registration time is cut down over 40 percent compared to traditional method. The match algorithm based on AM  solves the registration problem that greater differences between different source images are existed on gray and characteristic. At the same time  the adoption of combining the intelligent optimization algorithms significantly improves the searching efficiency and convergence speed of the algorithms  and the registration result has higher accuracy and stability  which builds up solid foundation for different source image fusion. The method in this paper has a magnificent effect  and is easy for application and very suitable for engineering use. 2010 IEEE.  
Method for obtaining real temperature of space object by using the ratio of emissivity at different wavelengths (EI CONFERENCE) 会议论文  OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 19, 2008 - November 21, 2008, Chengdu, China
Guo-Qiang W.; Tao C.; Jian-Li W.
收藏  |  浏览/下载：33/0  |  提交时间：2013/03/25
The infrared radiation character (temperature and efficiency radiation area) of a space object is an important characteristic  we can judge the state of the object working in orbit by measuring temperature and variety. Due to lower temperature of the object and far distance between the object and the earth  the infrared radiation signal is faintness  therefore temperature and the infrared radiation character is difficult to measure. There are several methods to measure the temperature of the object in theory and each one has its applicability respectively  such as applying Wien Law to compute temperature  based on Stefan-Bolzmann law to compute temperature and utilizing multi-spectrum detector to measure temperature As a whole these methods are based on the hypothesis that the object is a Black-body or the radiance emissivity is constant. In fact  homochromatic radiance of object is not a constant but a function that changes with wavelength. Since the problem that an object whose homochromatic radiance s not a constant which results in temperature can not be computed accurately  we bring forward a method to contrast the luminance of the object at different wavelengths and deduce the relationship among homochromatic radiance and wavelength and the temperature of Black-body  from which we can compute real temperature of object. 2009 SPIE.  
Shape and alignment measurement of the heliostat by laser deflectometry (EI CONFERENCE) 会议论文  OAI收割
Optical Modeling and Measurements for Solar Energy Systems II, August 13, 2008 - August 14, 2008, San Diego, CA, United states
作者:  Liu H.;  Zhang H.;  Zhang H.;  Liu H.;  Liu H.
收藏  |  浏览/下载：16/0  |  提交时间：2013/03/25