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A GENERALIZATION OF SIMPSON'S RULE
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作者 A.Horwitz 《Analysis in Theory and Applications》 1993年第2期71-80,共10页
Let TA(f)=integral form n= to 1/2(P_~n(x) + P_b^n(x))dx and let TM(f)=integral form n= to P_((+b)/2)^(n+1)(x)dx, where P_c^n denotes the Taylor polynomial to f at c of order n, where n is even. TA and TM are reach ge... Let TA(f)=integral form n= to 1/2(P_~n(x) + P_b^n(x))dx and let TM(f)=integral form n= to P_((+b)/2)^(n+1)(x)dx, where P_c^n denotes the Taylor polynomial to f at c of order n, where n is even. TA and TM are reach generalizations of the Trapezoidal rule and the midpoint rule, respectively. and are each exact for all polynomial of degree ≤n+1. We let L(f) = αTM(f) + (1-α)TA(f), where α =(2^(n+1)(n+1))/(2^(n+1)(n+1)+1), to obtain a numerical integration rule L which is exact for all polynomials of degree≤n+3 (see Theorem l). The case n = 0 is just the classicol Simpson's rule. We analyze in some detail the case n=2, where our formulae appear to be new. By replacing P_(+b)/2)^(n+1)(x) by the Hermite cabic interpolant at a and b. we obtain some known formulae by a different ap- proach (see [1] and [2]). Finally we discuss some nonlinear numerical integration rules obtained by taking piecewise polynomials of odd degree, each piece being the Taylor polynomial off at a and b. respectively. Of course all of our formulae can be compounded over subintervals of [a, b]. 展开更多
关键词 A generalIZATION OF SIMPSON’S rule
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Combining the Rule of Law with the Rule of Morality——General Secretary Xi Jinping's Important Discourse on the Relationship Between the Rule of Law and Rule by Virtue
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作者 徐显明 LI Kunyan 《The Journal of Human Rights》 2017年第2期103-109,共7页
Key points:Throughout the ages,rule of law has been an indispensable means of governing a state.However,as General Secretary Xi Jinping has pointed out,it is not enough to govern a state by the rule of law
关键词 of it or as general Secretary Xi Jinping’s Important Discourse on the Relationship Between the rule of Law and rule by Virtue Combining the rule of Law with the rule of Morality rule by is that been on with
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SYSTEM FOR AUTOMATIC GENERALIZATION OF TOPOGRAPHIC MAPS 被引量:2
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作者 YAN Hao-wen LI Zhi-lin AI Ting-hua 《Chinese Geographical Science》 SCIE CSCD 2006年第2期165-170,共6页
With the construction of spatial data infi'astructure, automated topographic map generalization becomes an indispensable component in the community of cartography and geographic information science. This paper descri... With the construction of spatial data infi'astructure, automated topographic map generalization becomes an indispensable component in the community of cartography and geographic information science. This paper describes a topographic map generalization system recently developed by the authors. The system has the following characteristics: 1) taking advantage of three levels of automation, i.e. fully automated generalization, batch generalization, and interactive generalization, to undertake two types of processes, i.e. intelligent inference process and repetitive operation process in generalization; 2) making use of two kinds of sources for generalizing rule library, i.e. written specifications and cartographers' experiences, to define a six-element structure to describe the rules; 3) employing a hierarchical structure for map databases, logically and physically; 4) employing a grid indexing technique and undo/redo operation to improve database retrieval and object generalization efficiency. Two examples of topographic map generalization are given to demonstrate the system. It reveals that the system works well. In fact, this system has been used for a number of projects and it has been found that a great improvement in efficiency compared with traditional map general- ization process can be achieved. 展开更多
关键词 map generalization system map database rule library topographic map
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气象观测场在汽车试验场中的应用研究
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作者 陈海建 《时代汽车》 2024年第14期172-174,178,共4页
汽车试验场作为汽车开展道路测试的重要场所,用于验证汽车产品的品质以及可靠性。除了场地道路外,气象条件作为汽车道路测试的重要一环,在《GB/T12534-1990汽车道路试验方法通则》中也有明确要求,如:试验时应是无雨无雾天气,相对湿度小... 汽车试验场作为汽车开展道路测试的重要场所,用于验证汽车产品的品质以及可靠性。除了场地道路外,气象条件作为汽车道路测试的重要一环,在《GB/T12534-1990汽车道路试验方法通则》中也有明确要求,如:试验时应是无雨无雾天气,相对湿度小于95%,气温0-40℃,风速不大于3m/s。同时气象条件也作为试验场道路管控的重要依据,实时风速、雨量、能见度等信息为场地管理者发布限速、限行、封场等通知提供必要参考依据,直接影响道路测试安全管控的及时性。因此,文章从气象观测场的建设、气象服务、异常天气道路管控等方面开展气象观测场在汽车试验场中的应用研究。 展开更多
关键词 汽车试验场 气象服务 道路管控 products. In addition to the SITE roads METEOROLOGICAL conditions are an important part of AUTOMOTIVE ROAD testing and there are also clear requirements in the GB/T12534-1990 general rules for AUTOMOTIVE ROAD Test Methods. For example the test should be conducted in rain and fog free weather with a relative humidity of less than 95% a temperature of 0-40 and a wind SPEED of no more than 3m/s. At the same time METEOROLOGICAL conditions also serve as an important basis for ROAD control in the test site. Real time information such as wind SPEED rainfall and visibility provides necessary reference for SITE managers to issue notices on SPEED limits SITE closures and traffic restrictions directly affecting the timeliness of ROAD testing safety control. Therefore this article conducts research on the application of METEOROLOGICAL observation SITES in AUTOMOTIVE testing SITES from the construction of METEOROLOGICAL observation SITES METEOROLOGICAL services and abnormal weather ROAD control.
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Approximate analytical solutions and mean energies of stationary Schrodinger equation for general molecular potential
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作者 Eyube E S Rawen B O Ibrahim N 《Chinese Physics B》 SCIE EI CAS CSCD 2021年第7期116-131,共16页
The Schrodinger equation is solved with general molecular potential via the improved quantization rule.Expression for bound state energy eigenvalues,radial eigenfunctions,mean kinetic energy,and potential energy are o... The Schrodinger equation is solved with general molecular potential via the improved quantization rule.Expression for bound state energy eigenvalues,radial eigenfunctions,mean kinetic energy,and potential energy are obtained in compact form.In modeling the centrifugal term of the effective potential,a Pekeris-like approximation scheme is applied.Also,we use the Hellmann–Feynman theorem to derive the relation for expectation values.Bound state energy eigenvalues,wave functions and meanenergies of Woods–Saxon potential,Morse potential,Mobius squared and Tietz–Hua oscillators are deduced from the general molecular potential.In addition,we use our equations to compute the bound state energy eigenvalues and expectation values for four diatomic molecules viz.H_(2),CO,HF,and O_(2).Results obtained are in perfect agreement with the data available from the literature for the potentials and molecules.Studies also show that as the vibrational quantum number increases,the mean kinetic energy for the system in a Tietz–Hua potential increases slowly to a threshold value and then decreases.But in a Morse potential,the mean kinetic energy increases linearly with vibrational quantum number increasing. 展开更多
关键词 general molecular potential Schrodinger equation improved quantization rule
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A NEW SELF-ADAPTIVE ITERATIVE METHOD FOR GENERAL MIXED QUASI VARIATIONAL INEQUALITIES
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作者 Abdellah Bnouhachem Mohamed Khalfaoui Hafida Benazza 《Acta Mathematica Scientia》 SCIE CSCD 2008年第3期685-696,共12页
The general mixed quasi variational inequality containing a nonlinear term φ is a useful and an important generalization of variational inequalities. The projection method can not be applied to solve this problem due... The general mixed quasi variational inequality containing a nonlinear term φ is a useful and an important generalization of variational inequalities. The projection method can not be applied to solve this problem due to the presence of nonlinear term. It is well known that the variational inequalities involving the nonlinear term φ are equivalent to the fixed point problems and resolvent equations. In this article, the authors use these alternative equivalent formulations to suggest and analyze a new self-adaptive iterative method for solving general mixed quasi variational inequalities. Global convergence of the new method is proved. An example is given to illustrate the efficiency of the proposed method. 展开更多
关键词 general mixed quasi variational inequalities self-adaptive rules resolvent operator
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Generating Fuzzy Rule-based Systems from Examples Based on Robust Support Vector Machine
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作者 贾泂 张浩然 《Journal of Donghua University(English Edition)》 EI CAS 2006年第6期144-147,共4页
This paper firstly proposes a new support vector machine regression (SVR) with a robust loss function, and designs a gradient based algorithm for implementation of the SVR, then uses the SVR to extract fuzzy rules and... This paper firstly proposes a new support vector machine regression (SVR) with a robust loss function, and designs a gradient based algorithm for implementation of the SVR, then uses the SVR to extract fuzzy rules and designs fuzzy rule-based system. Simulations show that fuzzy rule-based system technique based on robust SVR achieves superior performance to the conventional fuzzy inference method, the proposed method provides satisfactory performance with excellent approximation and generalization property than the existing algorithm. 展开更多
关键词 support vector machine fuzzy rules rule-based system generalization.
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General Provisions of the Civil Law and Commercial Legislation: Consensus, Problems and Options——Taking Commercial Agency as an Example
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作者 Zhong Kai Ge Hongquan 《Contemporary Social Sciences》 2019年第4期75-99,共25页
In the context of the codification of China's Civil Code, the academic consensus has been to make commercial legislation systematic and establish commercial norms with proper legislative expression. Many direct an... In the context of the codification of China's Civil Code, the academic consensus has been to make commercial legislation systematic and establish commercial norms with proper legislative expression. Many direct and indirect commercial norms in General Provisions of the Civil Law provide evidence that civil law has been turned into commercial law. However, a general overview shows that the absence of related norms, including agency in duty, reveals that General Provisions of the Civil Law is lacking commercial law's characteristics. In addition to the Civil Code, using General Rules of Commercial Law is a relatively reasonable choice for commercial legislative arrangements, such as norms in relation to agency in duty. Taking commercial agency as an example, legislators should adopt problem-oriented and limited systematic patterns of "residue law" instead of unified patterns of codification. 展开更多
关键词 general Provisions of the CIVIL LAW general rules of COMMERCIAL LAW AGENCY in DUTY COMMERCIAL AGENCY
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From the General Provisions of Civil Law to the General Rules of Civil Law:A Historic Leap
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作者 Yang Lixin 《Social Sciences in China》 2020年第2期5-25,共21页
The General Provisions of Civil Law(民法通则),formulated in the early days of reform and opening up,was a special law that set out the basic principles or rules of civil law,defining civil subjects,civil legal acts an... The General Provisions of Civil Law(民法通则),formulated in the early days of reform and opening up,was a special law that set out the basic principles or rules of civil law,defining civil subjects,civil legal acts and the agency system,declaring the civil rights enjoyed by civil subjects,establishing a relatively complete system of civil liability system,and so on.It kindled awareness of civil rights among the mass of the population,ensured China’s rapid economic and social development,and laid down a basic framework and content for the civil code,so holds an important position in contemporary Chinese history.But with the development of the economy and society,civil law has had to change with the times.Civil law jurisprudence injects theoretical support into contemporary civil law legislation,and the blueprint for law based governance provides a powerful impetus to the historic leap forward of contemporary Chinese civil law,providing the necessary conditions for the codification of civil law.The completion of the General Rules of Civil Law(民法总则)answers the requirements of the economic,humanist and legal character of the times,demonstrates the humanist stance and spirit of the civil code,rises to the challenge of modern scientific and technological development,and ensures people’s enjoyment and control of their new-style rights and their objective forms.This signifies that the GPCL has accomplished its historical task and civil law in contemporary China has realized a historic leap forward,laying a foundation for the compilation of the Chinese civil code,including the specific provisions of the framework and the contents of its individual parts. 展开更多
关键词 general rules of Civil Law general Provisions of Civil Law contemporary Chinese civil law HUMANIST
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THE CONSTITUTIVE EQUATION RESEMBLANCE OF ELASTIC-PLASTIC MULTIPHASE SOLID 被引量:1
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作者 张培源 汤羽 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 1990年第10期985-994,共10页
Based on composite materials, the equivalent elastic-plastic constitutive equations of multiphase solid are researched. According to the suggested definition of. constitutive equivalence it is demonstrated that the mu... Based on composite materials, the equivalent elastic-plastic constitutive equations of multiphase solid are researched. According to the suggested definition of. constitutive equivalence it is demonstrated that the multiphase solid, composed of several kinds of homogeneous elastic-plastic media that conform to the generalized normality rule, has the same type of constitutive equations as its constituents have that also conform to the generalized normality rule. 展开更多
关键词 multiphase solid equivalent homogeneous medium constitutive resemblance general normality rule eqevalent elastoplastic constitutive equation
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Does Digitalization Matter for Grievance Redress Mechanism?An Analysis of the E-Government Procurement in the Local Government
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作者 Habibullah Mohammad Himel Shuvra Chowdhury 《Macro Management & Public Policies》 2021年第4期31-38,共8页
Public procurement denotes the attainment of goods,works,or services required by governments through contracts.Public procurement is usually plagued with covert practices and exclusive forms of corruption in Banglades... Public procurement denotes the attainment of goods,works,or services required by governments through contracts.Public procurement is usually plagued with covert practices and exclusive forms of corruption in Bangladesh.The cost of development finance is much higher in public procurement than that of others in Bangladesh.There have been no unified rules or laws regarding government purchases since 2006.The Government of Bangladesh enacted its ever first act of public procurement,the Public Procurement Act,2006(PPA,2006),and the Public Procurement Rules,2008(PPR,2008).The procurement entity must disseminate procurement information through electronic medium i.e.Electronic Government Procurement(hereinafter e-GP).Despite passing over an era since its enactment,the role of the PPA,2006 remains seriously under-researched area,specifically there is no research on the issue of the grievance redress mechanisms.The study has been done using a qualitative case study methodology,backed by both primary and secondary documentary analysis.Based on empirical data,this paper explained the role of digitalization in the process of government procurement and depicted changes that have been brought by the implementation of e-GP in government purchases.However,it concluded that the grievance redress mechanism in the process of procurement is only existing in the policy papers which need mandatory implementation for a transparent and accountable governance system.Despite the significant changes and up-gradation in digital government procurement,it is hardly found that the GRM process is digitalized.And the mass tenderers are yet to be acquainted with the improvised system apart from the consistent efforts of the government. 展开更多
关键词 E-government procurement(e-GP) DIGITALIZATION Grievance-redress mechanism general Financial rule(GFR) Public finance
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Normalized Wolfe-Powell-type local minimax method for finding multiple unstable solutions of nonlinear elliptic PDEs 被引量:1
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作者 Wei Liu Ziqing Xie Wenfan Yi 《Science China Mathematics》 SCIE CSCD 2023年第10期2361-2384,共24页
The local minimax method(LMM)proposed by Li and Zhou(2001,2002)is an efficient method to solve nonlinear elliptic partial differential equations(PDEs)with certain variational structures for multiple solutions.The stee... The local minimax method(LMM)proposed by Li and Zhou(2001,2002)is an efficient method to solve nonlinear elliptic partial differential equations(PDEs)with certain variational structures for multiple solutions.The steepest descent direction and the Armijo-type step-size search rules are adopted in Li and Zhou(2002)and play a significant role in the performance and convergence analysis of traditional LMMs.In this paper,a new algorithm framework of the LMMs is established based on general descent directions and two normalized(strong)Wolfe-Powell-type step-size search rules.The corresponding algorithm framework,named the normalized Wolfe-Powell-type LMM(NWP-LMM),is introduced with its feasibility and global convergence rigorously justified for general descent directions.As a special case,the global convergence of the NWP-LMM combined with the preconditioned steepest descent(PSD)directions is also verified.Consequently,it extends the framework of traditional LMMs.In addition,conjugate-gradient-type(CG-type)descent directions are utilized to speed up the NWP-LMM.Finally,extensive numerical results for several semilinear elliptic PDEs are reported to profile their multiple unstable solutions and compared with different algorithms in the LMM’s family to indicate the effectiveness and robustness of our algorithms.In practice,the NWP-LMM combined with the CG-type direction performs much better than its known LMM companions. 展开更多
关键词 semilinear elliptic PDE multiple unstable solution local minimax method normalized strong Wolfe-Powell-type search rule conjugate-gradient-type descent direction general descent direction global convergence
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An Overview of Data Mining and Knowledge Discovery 被引量:8
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作者 范建华 李德毅 《Journal of Computer Science & Technology》 SCIE EI CSCD 1998年第4期348-368,共21页
With massive amounts of data stored in databases, mining information and knowledge in databases has become an important issue in recent research. Researchers in many different fields have shown great interest in data ... With massive amounts of data stored in databases, mining information and knowledge in databases has become an important issue in recent research. Researchers in many different fields have shown great interest in data mining and knowledge discovery in databases. Several emerging applications in information providing services, such as data warehousing and on-line services over the Internet, also call for various data mining and knowledge discovery techniques to understand user behavior better, to improve the service provided, and to increase the business opportunities. In response to such a demand, this article is to provide a comprehensive survey on the data mining and knowledge discovery techniques developed recently, and introduce some real application systems as well. In conclusion, this article also lists some problems and challenges for further research. 展开更多
关键词 Knowledge discovery in databases data mining machine learning association rule CLASSIFICATION data clustering data generalization pattern searching
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