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Application of autocorrelation method on ionospheric short--term forecasting in China

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Chinese Science Bulletin 2006年第3期51卷 352-357页

作者： LIU Ruiyuan LIU Shunlin XU Zhonghua WU Jian wang xianyi ZHANG Beichen HU Hongqiao School of Electronic Information of Wuhan University Wuhan 430072 China Polar Research Institute of China Shanghai 200136 China China Research Institute of Radiowave Propagation Xinxiang 453003 China

Adopting the autocorrelation method in the ionospheric short-term forecasting, we put for- ward a simple and practical forecasting method― the sectional autocorrelation method, that is, for pre- dictions of one hour to four hours ahead the auto- correlation coefficient of RDF with the “iteration” method is selected, for prediction of more than four hours ahead, the autocorrelation coefficient of f0F2 with the “at once” method is used. The prediction precisions have been quantitatively estimated based on the data from Chongqing and Guangzhou Ionos- onde Stations. It is shown that the method is much improved for the predictions of one hour to four hours ahead. For the predictions of more than four hours ahead the prediction error reaches a saturation value, which is still lower than that of the “median” method. This new method could also be applied to the short-term forecasting of other ionospheric parame- ters.

关键词：电离层电离层预报自相关法短期预报中国

A Study of the Sustainable Development of Rural Sports in Gannan

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Asian Agricultural Research 2016年第2期8卷 78-80页

作者： xianyi wang Jiangxi University of Science and Technology

Under the background of new urbanization and new rural construction,how to realize the sustainable development of rural sports is a problem to be solved. Using the methods of literature and logical analysis,based on expounding the relationship model of urbanization and new rural construction,with rural Gannan revolutionary base area as example,the rural sports development path is explored,so as to provide reference for sustainable development of rural sports.

关键词： Gannan Rural sports Sustainable development

CONSTRUCTION AND COMPARISONS OF SIMULTANEOUS CONFIDENCE INTERVALS FOR THE MEAN DIFFERENCE OF MULTIVARIATE NORMAL DISTRIBUTIONS

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Journal of Systems Science & Complexity 2010年第2期23卷 303-314页

作者： Xianhua MENG·Jinglong wang·xianyi WU School of Finance and Statistics,East China Normal University,Shanghai 200241,China. School of Finance and Statistics East China Normal University Shanghai China

In this paper,Scheffé and Simplified Scheffé simultaneous confidence intervals are firstconstructed for mean difference of several multivariate normal *** the authors theoreticallyprove that when there are only two populations,Bonferroni bounds and Simplified Scheffébounds are the same and they are shorter than Scheffé bounds for p*** the case for 3k10and 2p10,there exists n(p,k)such that Bonferroni method is better than Simplified Schefféprocedure for nn(p,k),otherwise Simplified Scheffé procedure is ***,the authors findout that neither of Scheffé critical values nor Simplified Scheffé critical values are always larger thananother through numerical calculation.

关键词： Bonferroni simultaneous confidence interval multiple comparison Scheff@ simultaneousconfidence interval simplified Scheffé simultaneous confidence interval.

Development and Research on Rural Regional Characteristic Sports Tourism Industry: A Case Study of Southern Jiangxi Province

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Asian Agricultural Research 2014年第5期6卷 27-30页

作者： xianyi wang Yanting LONG PE Teaching and Research Office Jiangxi University of Science and Technology Ganzhou Agricultural School

With the hope of providing basis for sound development of rural sports tourism industry in economic less-developed region and the establishment of macro industry policy,this paper demonstrated the selection of development way,space frame and product system of rural sports tourism industry in southern Jiangxi Province by consulting document literature and conducting field research and based on the analysis of social background for the rise of rural sports tourism.

关键词： Southern Jiangxi Province Rural area Sports touris

How to Promote Sustainable Development of Rural Sports in Gannan?

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Asian Agricultural Research 2017年第7期9卷 90-92页

作者： xianyi wang Fengzhou ZHAI Department of Physical Education Jiangxi University of Science and Technology

Rural sport is the weak link in China's sport development,and in the context of new rural construction and new urbanization,rural sports face both development opportunities and severe challenges. Based on the connotation discussion about sustainable development of rural sports,this paper takes the rural sports in underdeveloped Gannan old revolutionary base for example,and brings forward the exploratory ways to sustainable development of rural sports,in order to provide a reference for the sustainable development of rural sports.

关键词： Gannan Rural sports Sustainable development

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水泥混凝土机场道面板角脱空判定分析

同济大学学报（自然科学版） 2007年第5期35卷 612-616页

作者：王显祎凌建明同济大学道路与交通工程教育部重点实验室上海200092

针对机场水泥混凝土道面板角脱空问题,把道面板划分为弹性地基上的梁,得出道面板板中及板角的弯沉公式.根据接缝的传荷性能,提出了应用板角弯沉值与板中弯沉值之比判定板角脱空的方法;通过某机场水泥混凝土道面实测弯沉数据及现场钻芯... 详细信息

针对机场水泥混凝土道面板角脱空问题,把道面板划分为弹性地基上的梁,得出道面板板中及板角的弯沉公式.根据接缝的传荷性能,提出了应用板角弯沉值与板中弯沉值之比判定板角脱空的方法;通过某机场水泥混凝土道面实测弯沉数据及现场钻芯取样验证了该法的正确性;详细讨论了影响板角脱空的几个主要因素,为实际工程中板角脱空的判断及防止提出了一些有益的建议.

关键词：机场道面近似梁理论板角脱空弯沉

Empirical Analysis on Sociological Factors for Underdevelopment of Rural Sports

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Asian Agricultural Research 2017年第8期9卷 31-33页

作者： xianyi wang Na TIAN Junfei HUANG Sports Department Jiangxi University of Science and Technology

Rural sports are weak parts in sports development of *** the social environment of new socialist countryside construction and new urbanization advancing side by side,rural sports have great opportunities and serious *** sports of Gannan old revolutionary base area as an example,this paper analyzed factors influencing rural sports from the sociological perspective,to provide measures and recommendations for sustainable development of rural sports.

关键词： Gannan Rural sports Sociological factors

L1-Aided L2 Tracking Loop in Dual Frequency GPS Receiver

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L1-Aided L2 Tracking Loop in Dual Frequency GPS Receiver

Theoretical perspective on synthetic man-made life:Learning from the origin of life

2011 International Conference on Computers, Communications, Control and Automation

作者： wang xianyi Sun Yueqiang Graduate University of Chinese Academy of Sciences Center for Space Science and Applied Research Chinese Academy of Sciences Center for Space Science and Applied Research Chinese Academy of Sciences

Semi-codeless carrier phase tracking of L2 is implemented by employing Z-Tracking technique. Performance of the L2 tracking loop decreases significantly due to squaring loss caused by Z-Tracking. L1-aided L2 tracking method has been developed for Z-Tracking of the Y code. Performance of the L1-aided L2 tracking loop is simulated and analyzed. Simulation results show that the L1-aided L2 tracking method improves loop performance.

关键词： GPS Dual Frequeny Z-Tracking L1-Aided L2 Tracking

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Quantitative Biology 2023年第4期11卷 376-394页

作者： Lu Peng Zecheng Zhang xianyi wang Weiyi Qiu Liqian Zhou Hui Xiao Chunxiuzi Liu Shaohua Tang Zhiwei Qin Jiakun Jiang Zengru Di Yu Liu International Academic Center of Complex Systems Beijing Normal UniversityZhuhaiChina Swarma Research BejingChina Department of Philosophy Shanghai Jiao TongUniversityShanghaiChina Center for Biological Science and Technology Advanced Institute of Natural SciencesBeijing Normal UniversityZhuhaiChina Center for Statistics and Data Science Bejing Normal UniversityZhuhaiChina

Creating a man-made life in the laboratory is one of life science's most intriguing yet challenging *** in synthetic biology and related theories,particularly those related to the origin of life,have laid the groundwork for further exploration and understanding in this field of artificial life or man-made *** there remains a wealth of quantitative mathematical models and tools that have yet to be applied to this *** this paper,we review the two main approaches often employed in the field of man-made life:the top-down approach that reduces the complexity of extant and existing living systems and the bottom-up approach that integrates welldefined components,by introducing the theoretical basis,recent advances,and their *** then argue for another possible approach,namely"bottom-up from the origin of life":Starting with the establishment of autocatalytic chemical reaction networks that employ physical boundaries as the initial compartments,then designing directed evolutionary systems,with the expectation that independent compartments will eventually emerge so that the system becomes *** approach is actually analogous to the process of how life *** this paper,we aim to stimulate the interest of synthetic biologists and experimentalists to consider a more theoretical perspective,and to promote the communication between the origin of life community and the synthetic man-made life community.

关键词： artificial cell autocatalytic ladderpath origin of life protocell