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A STUDY ON THRESHOLDS IN THE CHANGE OF ALLUVIAL FAN AND DELTA OF THE HUANGHE RIVER, CHINA

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Chinese Geographical Science 1991年第3期1卷 68-77页

作者：曹银真

In the river systems, the environmental change always undergoes a process from quantitative to qualitative change. The upper limit of the qualitative change is called threshold. When the process reaches or goes beyond the limit, the original event series will be replaced by the other event series. Investigations show that the evolution of the Huanghe River alluvial fan and delta has also under gone a process from quantitative to qualitative change. The geometric forms in each process are roughly the same. This threshold of the geometric forms not only provides us a quantitative index for plotting the periodicity of the alluvial fan and delta, but also is of importance for estimation of the trend of natural environmental change.It is shown that there are three periodic alluvial fans of the Huanghe River since the middle Holocene and four periodic delta since 1855 A.D., the thresholds of their geometric forms are from 0.93 to 0.94 and from 1.2 to 1.21 respectively.The changing trend in the past and the

关键词： alluvial fan Huanghe River delta thresholds Breach and changing Course

The Governance of China in a changing World

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China Today 2021年第3期70卷 48-49页

作者： AUGUSTO SOTO 不详

ABOUT one year ago Chinese President Xi Jinping delivered a speech in which he reflected on the exercise of power in the most populated country that is home to the world’s oldest continuous culture.The speech is the last one of the 92 articles included in his work The Governance of China III.This third volume assembles President Xi’s speeches and texts given between October 18,2017 and January 13,2020 preceding the outbreak of the COVID-19 pandemic.However,the ideas in the book are clearly still valid today.

关键词： Governance changing World

Using the non-parameter index Bcp to identify Sleeping Beauty literature and exploring the changing law of its authors’ dynamic h index

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Journal of Library Science in China 2018年 208-209页

作者： LI He XIE Mengfan YUAN Cuimin YU Lu 不详

The study of the identification of Sleeping Beauty literature and the dynamic law of the author’s h index can observe the Sleeping Beauty literature from multiple dimensions and provide important reference value for the exploration of the awakening elements of Sleeping Beauty literature from the perspective of author’s influence.

关键词： Using the non-parameter index Bcp identify Sleeping Beauty literature exploring the changing law dynamic h index

What Is changing Children’s Career Choices?

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新世纪智能 2018年第17期 69-70页

作者： Susan 不详

Children are now more likely to want to work in social media or gaming than traditional careers, a survey has found. According to the new research, many from seven to 11-yearolds are looking at modern technology when ... 详细信息

关键词： changing Children Career Choices

基于逆磁致伸缩的索力传感器原理与影响因素研究

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计量学报 2009年第6期30卷 -页

作者：姜建山陈伟民黄尚廉廖昌荣章鹏 Jian-shan Wei-min Shang-lian Chang-rong 重庆大学光电技术及系统教育部重点实验室重庆400044 重庆交通大学信息科学与工程学院重庆400074

基于逆磁致伸缩效应,建立钢缆索索力传感器理论模型,分析了施加在缆索材料上的力信号(外力和应变)与磁信号(磁感应强度、磁场强度)之间的耦合关系.针对一种环式结构的索力传感器,对索力测量原理做了详细推导,可通过检测感应线圈的感应... 详细信息

基于逆磁致伸缩效应,建立钢缆索索力传感器理论模型,分析了施加在缆索材料上的力信号(外力和应变)与磁信号(磁感应强度、磁场强度)之间的耦合关系.针对一种环式结构的索力传感器,对索力测量原理做了详细推导,可通过检测感应线圈的感应电压反映材料所受外力.传感器输出感应电压与空气间隙尺寸、外部激励磁场下的材料磁导率、激励磁场变化、加载外力变化等因素有关,重点分析了激励磁场变化和外力变化对传感器输出的影响.当外力是缓变力,可通过检测感应积分电压求得外力;当外力是交变力,直接通过感应电压求得外力;最后通过对磁场变化和外力变化影响分别进行了仿真,结果与理论分析基本一致,表明所建立的索力传感器理论模型可行.Abstract：Based on Villari-effect, the theoretic mdel d the cable tension sensor is presented. The relationship between mechanical parameters such as stress, strain and electromagnetic parameters like magnetic field and magnetic induction field are discussed. One loop-shaped stinulative structure of cable tension sensor based on Villari--effect is proposed and cable tension sensor principle is deeply analysed. By measuring inductive voltage in inductive loops, cable tension stress may be measured. Sensor output may be determined by air clearance, magnetic permeability, magnetic field, stress and inductive loops denseness. The sensor output effects resulting from magnetic field and stress ate analysed respectively. When stress changes tardigradely, the cable tension stress may be measured by measuring inductive integral voltage. When stress changes expeditiously, the cable tension stress may be measured by measuring inductive voltage. Sensor sensibility may be determined by stress frequency, inductive loops denseness, magnetic field and nagnetic permeability. In addition, the sensor output effects from magnetic changing and stress changing have been analysed with emulational methods. The results indicate that sensor theory model is feasible.

关键词：逆磁致伸缩效应力传感器影响因素研究 Based Cable Tension Influencing Factors cable tension tension stress magnetic field 外力激励磁场感应电压磁场变化 mechanical parameters magnetic induction 索力理论模型 changing changes 分析

Probing anomalous top-Higgs couplings at the HL-LHC via H→WW~* decay channels

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Chinese Physics C 2019年第1期43卷 9-15页

作者：刘要北 Stefano Moretti Henan Institute of Science and Technology School of Physics & Astronomy University of Southampton

We study the prospects of probing the anomalous tHq(q=u,c)couplings via SS2L or 3L signatures at the High Luminosity(HL-LHC)run of the 14 Te V CERN collider.We focus on signals of the tH associated production followed by the decay modes t→b?^+ν_?and H→W W~*,and ■ production followed by the decay modes t→b?^+ν_?and■where?=e,μ.Based on two types of H→W W~*decay topologies,one assuming the semileptonic decay mode H→W W~*→?^+νjj and the other the fully leptonic decay mode■,we perform a full simulation for signals and backgrounds.It is shown that,at the future HL-LHC,the branching ratio Br(t→uh)(Br(t→ch))can be probed to 1.17(1.56)×10^(-3)for the same-sign di-lepton channel,and to7.1×10^(-4)(1.39×10^(-3))for the 3L channel at 3σsensitivity.

关键词： anomalous top-higgs couplings flavor changing neutral currents LHC

Solving　Linear　Programming　Problems　via　Appending　an　Elastic　Constraint

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Journal of Southeast University(English Edition) 1996年第2期12卷 98-107页

作者：潘平奇

Despite it is often available in practice, information of optimal value of linear programming problems is ignored by conventional simplex algorithms. To speed up solution process, we propose in this paper some vari... 详细信息

关键词： linear programming optimal value pivoting rule EC changing rule

Innovation Reshapes the Future of Detergent Industry in China

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China Detergent & Cosmetics 2019年第3期4卷 17-20页

作者： Zhang Liping Huang Liang Guangzhou Liby Enterprise Group Co. Ltd.

The developing of detergent industry from 2016 to 2018 was studied in different channel and different market. It showed that middle and high end products got more market share and creative high end products were popular in young generation. The changing of consumer demand and developing of retail channel, especially e-commence, which has accelerated detergent moving to higher end. Innovation, throughout the value chain, was the main driving force of the new growth of detergent industry.

关键词： detergent industry channel consumer changing innovation

On the Growth and Polynomial Coefficients of Entire Series

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Applied Mathematics 2011年第9期2卷 1124-1128页

作者： Huzoor H. Khan Rifaqat Ali 不详

In this paper we have generalized some results of Rahman [1] by considering the maximum of |f(z)| over a certain lemniscate instead of considering the maximum of|f(z)|, for |z|=r and obtain the analogous results for the entire function |f(z)|=Σpk(z) [q(z)]k-1 where q(z) is a polynomial of degree m and pk(z)is of degree m-1. Moreover, we have obtained some inequalities on the lover order, type and lower type in terms of polynomial coefficients.

关键词： Lemniscate Lower Order Lower Type Slowly changing Function Polynomial Coefficients and Entire Functions.