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灰色系统理论在高校体育师资综合评价中的应用研究
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作者 孙静 马望远 +1 位作者 苏国伟 胥英明 《河北大学学报(哲学社会科学版)》 CSSCI 北大核心 2007年第5期68-71,共4页
灰色系统理论方法是目前体育领域发展最快的方法之一,本文采用这一理论方法对高校体育师资构成要素进行了分析。由于使用了最优对象作对比,因此该方法具有一定的先进性和客观性,可用于高校体育师资综合评价工作。
关键词 高校 体育教师 灰色系统应用
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应用灰色系统理论分析研究大功率柴油机低负荷性能 被引量:2
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作者 常汉宝 郑远春 安士杰 《柴油机》 2004年第2期25-27,31,共4页
应用灰色系统理论研究了低负荷下进气涡流对TBD620V12柴油机燃烧过程的影响。结果表明,该型柴油机在低负荷下采用涡流气道进气,有利于缩短滞燃期,增加主燃烧阶段的燃烧百分数,达到了改善低负荷下燃烧的目的。
关键词 应用灰色系统理论 大功率柴油机 低负荷性能 涡流气道 TBD620V12
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灰关联法在中转仓库选择中的应用 被引量:1
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作者 胡平 陶静 《淮阴工学院学报》 CAS 1998年第1期25-29,共5页
制造企业往往要在一个分销区域内选租一个仓库作为商品的中转站,但选择仓库需求考虑多方面条件,这些条件中不但常含有定性指标,而且常有相互抵触的目标,因此,这就使一般的选择方法遇到困难。为此本文提出采用灰关联方法来解决这种仓库... 制造企业往往要在一个分销区域内选租一个仓库作为商品的中转站,但选择仓库需求考虑多方面条件,这些条件中不但常含有定性指标,而且常有相互抵触的目标,因此,这就使一般的选择方法遇到困难。为此本文提出采用灰关联方法来解决这种仓库选择难题。此法不但能够更切实际地考虑诸多选择条件,而且计算简单可行,对企业商品分销决策具有一定的经济实用价值。 展开更多
关键词 商品分销决策 中转仓库选择 灰色系统理论应用
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Clock-based RAIM method and its application in GPS receiver positioning 被引量:4
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作者 滕云龙 师奕兵 《Journal of Central South University》 SCIE EI CAS 2012年第6期1558-1563,共6页
Because the signals of global positioning system (GPS) satellites are susceptible to obstructions in urban environment with many high buildings around, the number of GPS useful satellites is usually less than six. I... Because the signals of global positioning system (GPS) satellites are susceptible to obstructions in urban environment with many high buildings around, the number of GPS useful satellites is usually less than six. In this case, the receiver autonomous integrity monitoring (RAIM) method earmot exclude faulty satellite. In order to improve the performance of RAIM method and obtain the reliable positioning results with five satellites, the series of receiver clock bias (RCB) is regarded as one useful satellite and used to aid RAIM method. From the point of nonlinear series, a grey-Markov model for predicting the RCB series based on grey theory and Markov chain is presented. And then the model is used for aiding RAIM method in order to exclude faulty satellite. Experimental results demonstrate that the prediction model is fit for predicting the RCB series, and with the clock-based RAIM method the faulty satellite can be correctly excluded and the positioning precision of GPS receiver can be improved for the case where there are only five useful satellites. 展开更多
关键词 positioning precision receiver autonomous integrity monitoring (RAIM) receiver clock bias (RCB) grey theory Markov chain
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The Application of a Grey Markov Model to Forecasting Annual Maximum Water Levels at Hydrological Stations 被引量:12
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作者 DONG Sheng CHI Kun +1 位作者 ZHANG Qiyi ZHANG Xiangdong 《Journal of Ocean University of China》 SCIE CAS 2012年第1期13-17,共5页
Compared with traditional real-time forecasting,this paper proposes a Grey Markov Model(GMM) to forecast the maximum water levels at hydrological stations in the estuary area.The GMM combines the Grey System and Marko... Compared with traditional real-time forecasting,this paper proposes a Grey Markov Model(GMM) to forecast the maximum water levels at hydrological stations in the estuary area.The GMM combines the Grey System and Markov theory into a higher precision model.The GMM takes advantage of the Grey System to predict the trend values and uses the Markov theory to forecast fluctuation values,and thus gives forecast results involving two aspects of information.The procedure for forecasting annul maximum water levels with the GMM contains five main steps:1) establish the GM(1,1) model based on the data series;2) estimate the trend values;3) establish a Markov Model based on relative error series;4) modify the relative errors caused in step 2,and then obtain the relative errors of the second order estimation;5) compare the results with measured data and estimate the accuracy.The historical water level records(from 1960 to 1992) at Yuqiao Hydrological Station in the estuary area of the Haihe River near Tianjin,China are utilized to calibrate and verify the proposed model according to the above steps.Every 25 years' data are regarded as a hydro-sequence.Eight groups of simulated results show reasonable agreement between the predicted values and the measured data.The GMM is also applied to the 10 other hydrological stations in the same estuary.The forecast results for all of the hydrological stations are good or acceptable.The feasibility and effectiveness of this new forecasting model have been proved in this paper. 展开更多
关键词 Grey Markov Model forecasting estuary disaster prevention maximum water level
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金矿区化探深部预测新方法
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作者 唐战元 谭建刚 《世界有色金属》 2018年第18期267-267,269,共2页
在矿山的利用开发过程当中,矿床的预测判断在其中是一项非常繁杂的工作,对深部预测的技术相对较高,为了进一步推动矿产经济的发展,完善金矿区化探深部预测效果,优化新型的矿山内部深层预测方法是非常有必要的,近几年来相关矿区地质勘查... 在矿山的利用开发过程当中,矿床的预测判断在其中是一项非常繁杂的工作,对深部预测的技术相对较高,为了进一步推动矿产经济的发展,完善金矿区化探深部预测效果,优化新型的矿山内部深层预测方法是非常有必要的,近几年来相关矿区地质勘查专家也一直致力于对金矿区化探深部预测新方法的研究,矿山地区深部预测研究工作也取得了不小的进展,通过大量的对比分析在传统原生晕预测方法的基础上提出一种新型灰色CM预测应用方法,并在实际的金矿区化探深部预测应用中得了专家的极大肯定。 展开更多
关键词 矿区预测 灰色应用系统 深部预测
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Application of GM(1,1) Prediction Model in Science and Technology Novelty Search Work
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作者 XiangRong Gao Jing Du 《International Journal of Technology Management》 2014年第11期104-106,共3页
Grey system theory has been widely applied to many domains such as economy, agriculture, management, Social Sciences and so on. Based on the theory of grey system, this paper established GM(1,1) grey predict model f... Grey system theory has been widely applied to many domains such as economy, agriculture, management, Social Sciences and so on. Based on the theory of grey system, this paper established GM(1,1) grey predict model for the first time to forecast The number of Scitech novelty search item and The staff number of Sci-Tech Novelty Search. The predicting results are almost close to the actual values, which shows that the model is reliable so that the models could be used to forecast the two factors in the future years. The study will help the scientific management of Sci-Tech Novelty search work for Novelty search organizations. 展开更多
关键词 GM(1 1) model grey theory Sci-Tech Novelty search
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