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基层党建中的“微问题”及其解决方法的大思路 被引量:4
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作者 叶可汗 《领导科学》 北大核心 2019年第24期23-25,共3页
从根本上来说,基层党建的"微问题"属于懒政怠政,是基层党建边缘化的外现,其表现为"微心态""微作为""微视距""微治理"四种"微状态"。这造成基层党建中存在思想意识薄弱、... 从根本上来说,基层党建的"微问题"属于懒政怠政,是基层党建边缘化的外现,其表现为"微心态""微作为""微视距""微治理"四种"微状态"。这造成基层党建中存在思想意识薄弱、责任机制滞后、组织温度不够等困境。应从全面从严治党的大思路出发,提升对基层党建"微问题"的重视程度,以明责保障党支部建设有章可循,以落实促进党支部建设脚踏实地,以考核促进党支部建设创先争优。 展开更多
关键词 基层党建 “微问题” 支部建设 明责 落实 考核
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论法治扶贫中“微腐败”问题的治理
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作者 万师 《集宁师范学院学报》 2020年第4期83-88,共6页
法治扶贫要保障精准扶贫能够达到真扶贫、扶真贫,实现扶贫的终极目标,就必须强化法治扶贫理念的构建,增强法治扶贫的意识,加强对“微腐败”问题的惩治。建立法治扶贫的制度体系,加强对扶贫项目的规范管理。法治扶贫的监督制度建设,建立... 法治扶贫要保障精准扶贫能够达到真扶贫、扶真贫,实现扶贫的终极目标,就必须强化法治扶贫理念的构建,增强法治扶贫的意识,加强对“微腐败”问题的惩治。建立法治扶贫的制度体系,加强对扶贫项目的规范管理。法治扶贫的监督制度建设,建立困难群体参与监督机制,构建高效联动的监督体系,促进法治扶贫有序开展。 展开更多
关键词 精准扶贫 “微腐败”问题 法治
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“微时代”高职学生网络道德的问题与对策
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作者 刘雪梅 《神州》 2014年第12期258-259,共2页
本文结合高职院校实际,分析了“微时代”的特点与优势,同时对高职学生网络道德问题的现状进行了分析,同时提出了“微时代”
关键词 “微时代”高职学生网络道德的问题与对策
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高中力学中的“微移”问题
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作者 王诗峰 《中学物理》 2003年第9期55-55,共1页
关键词 高中 力学 “微移”问题 物理 解法
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Oscillation of Systems of Parabolic Differential Equations with Deviating Arguments 被引量:1
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作者 邓立虎 王宏洲 葛渭高 《Journal of Beijing Institute of Technology》 EI CAS 2001年第1期12-16,共5页
To study a class of boundary value problems of parabolic differential equations with deviating arguments, averaging technique, Green’s formula and symbol function sign(·) are used. The multi dimensional problem... To study a class of boundary value problems of parabolic differential equations with deviating arguments, averaging technique, Green’s formula and symbol function sign(·) are used. The multi dimensional problem was reduced to a one dimensional oscillation problem for ordinary differential equations or inequalities. Two oscillatory criteria of solutions for systems of parabolic differential equations with deviating arguments are obtained. 展开更多
关键词 systems of parabolic differential equations boundary value problem deviating arguments OSCILLATION
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The Robin Problem for Singular Perturbed Integral Differential Equations of Volterra Type 被引量:12
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作者 张祥 《Chinese Quarterly Journal of Mathematics》 CSCD 1992年第3期24-31,共8页
In this paper,making use of upper and lower solutions,we first prove the existence of the solu tion for integral differential equation of Volterra type.Then applying the theory of differential in equalities obtained,u... In this paper,making use of upper and lower solutions,we first prove the existence of the solu tion for integral differential equation of Volterra type.Then applying the theory of differential in equalities obtained,under the appropriate assumptions,by constructing the special function of upper and lower solutions,we demonstrate the existence of the solution for singularly preturbed integral differential equation of Volterra type,and give the uniformly valid approximate estimation. 展开更多
关键词 singular perturbation differential inequalities the existence of solution approxi mate estimation
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Analysis of a Cavity Used for Medical Purposes with the Dyadic Green's Functions and the Moment method
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作者 薛正辉 刘永善 +1 位作者 李德生 王堃 《Journal of Beijing Institute of Technology》 EI CAS 1996年第1期19-26,共8页
The structure of a microwave radiator used for medical purposes is described. The dyadic Green's function and the method are used to analyze this Kind of multimode rectangular medium-filled cavity. The distributio... The structure of a microwave radiator used for medical purposes is described. The dyadic Green's function and the method are used to analyze this Kind of multimode rectangular medium-filled cavity. The distribution of electromagnetic field intensity and the power density,as well as the temperature effect in the biological sample load are obtained.OPtimization of the size of cavity and the position of the input aperture have been performed with the computer to optimize the uniformity or microwave effect and the input VSWR.Necessary experiments were performed to compare the data obtained with theoretical analysis. 展开更多
关键词 microwave therapy apparatus moment problems dyadic Green's function
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Global Soultions and Asymptotic Properties for a Class of Partial Differential Equations
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作者 孙振营 《Chinese Quarterly Journal of Mathematics》 CSCD 2000年第3期78-83,共6页
This paper is concerned with the generalzed global solution and its asymptotic properties for the initial value problem of the partial differential equationu t+u x 3 =F(u).
关键词 global solution asymptotic property initial value problem
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CONSTRAINT QUALIFICATIONS AND DUAL PROBLEMS FOR QUASI-DIFFERENTIABLE PROGRAMMING
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作者 殷洪友 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2002年第2期199-202,共4页
In classical nonlinear programming, it is a general method of developing optimality conditions that a nonlinear programming problem is linearized as a linear programming problem by using first order approximations of ... In classical nonlinear programming, it is a general method of developing optimality conditions that a nonlinear programming problem is linearized as a linear programming problem by using first order approximations of the functions at a given feasible point. The linearized procedure for differentiable nonlinear programming problems can be naturally generalized to the quasi differential case. As in classical case so called constraint qualifications have to be imposed on the constraint functions to guarantee that for a given local minimizer of the original problem the nullvector is an optimal solution of the corresponding 'quasilinearized' problem. In this paper, constraint qualifications for inequality constrained quasi differentiable programming problems of type min {f(x)|g(x)≤0} are considered, where f and g are qusidifferentiable functions in the sense of Demyanov. Various constraint qualifications for this problem are presented and a new one is proposed. The relations among these conditions are investigated. Moreover, a Wolf dual problem for this problem is introduced, and the corresponding dual theorems are given. 展开更多
关键词 quasi differentiable programming constraint qualification dual problems
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A Class of Strongly Nonlinear Singular Perturbed Boundary Value Problems 被引量:15
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作者 TANG Rong-rong(Department of Mathematics, Huzhou Teacher’ s College, Huzhou 313000, China) 《Chinese Quarterly Journal of Mathematics》 CSCD 2003年第2期117-120,共4页
In this paper, a class of strongly nonlinear singular perturbed boundary value problems are coasidered by the theory of differential inequalities and the correction of boundary layer, under which the existence of solu... In this paper, a class of strongly nonlinear singular perturbed boundary value problems are coasidered by the theory of differential inequalities and the correction of boundary layer, under which the existence of solution is proved and the uniformly valid asymptotic expansions is obtained as well. 展开更多
关键词 nonlinear equation singular perturbation boundary value problem differential inequality
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A Remark on the Positive Definite Problem of a Binary Quartic Form 被引量:4
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作者 凌生智 《Chinese Quarterly Journal of Mathematics》 CSCD 1999年第1期43-46, ,共4页
In this paper,we discussed the positive definite problem of binary quartic forms and obtained a necessary and sufficient conditions.
关键词 positive definite binary quartic form negative definite
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Trotter-kato Theorems for an α-times Integrated Semigroups 被引量:4
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作者 郎开禄 杨光俊 《Chinese Quarterly Journal of Mathematics》 CSCD 1999年第3期11-16, ,共6页
In this paper,we discuss on the convergence and approximation of an α times integrated semigroups. The Trotter kato theorems for an α times integrated semigroups are obtained.
关键词 times integrated semigroups CONVERGENCE appoximation
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A Boundary Value Problem for Second Order Functional Differential Equations with Impulses
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作者 何智敏 葛渭高 《Journal of Beijing Institute of Technology》 EI CAS 1998年第4期323-329,共7页
Aim To investigate the boundary value problem for second order functional differentiai equations with impulses. Methods The fixed point principle was used to establish our results. Results and Conclusion The results o... Aim To investigate the boundary value problem for second order functional differentiai equations with impulses. Methods The fixed point principle was used to establish our results. Results and Conclusion The results of the esistence, the uniqueness and the continuous dependence on aprameter of soiutions of the boundary value problems for second order functional differential equations with impulses are obtained. 展开更多
关键词 functional differential equation boundary value Problem impulse fixed point principle
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Singular Perturbations for a Class of Fourth-order Nonlinear Boundary Value Problem 被引量:2
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作者 LI Xu WANG Shi-peng 《Chinese Quarterly Journal of Mathematics》 CSCD 2011年第2期217-222,共6页
This paper is devoted to study the following the singularly perturbed fourth-order ordinary differential equation ∈y(4) =f(t,y',y'',y'''),0t1,0ε1 with the nonlinear boundary conditions y(0)=y'(1)=0,p... This paper is devoted to study the following the singularly perturbed fourth-order ordinary differential equation ∈y(4) =f(t,y',y'',y'''),0t1,0ε1 with the nonlinear boundary conditions y(0)=y'(1)=0,p(y''(0),y'''(0))=0,q(y''(1),y'''(1))=0 where f:[0,1]×R3→R is continuous,p,q:R2→R are continuous.Under certain conditions,by introducing an appropriate stretching transformation and constructing boundary layer corrective terms,an asymptotic expansion for the solution of the problem is obtained.And then the uniformly validity of solution is proved by using the differential inequalities. 展开更多
关键词 singular perturbation nonlinear boundary value problem differential inequality asymptotic expansion
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Nonlinear predator-prey singularly perturbed Robin Problems for reaction diffusion systems 被引量:4
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作者 莫嘉琪 韩祥临 《Journal of Zhejiang University Science》 CSCD 2003年第5期511-513,共3页
The nonlinear predator-prey reaction diffusion systems for singularly perturbed Robin Problems are considered. Under suitable conditions, the theory of differential inequalities can be used to study the asymptotic beh... The nonlinear predator-prey reaction diffusion systems for singularly perturbed Robin Problems are considered. Under suitable conditions, the theory of differential inequalities can be used to study the asymptotic behavior of the solution for initial boundary value problems. 展开更多
关键词 NONLINEAR PREDATOR-PREY Reaction diffusion Singular perturbation
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A Class of Nonlinear Singularly Perturbed Problems of Fourth Order 被引量:1
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作者 莫嘉琪 刘树德 《Chinese Quarterly Journal of Mathematics》 CSCD 1997年第1期35-37, ,共3页
A class of fourth order singularly perturbed boundary value problems are studied. The existence of solution and its uniformly valid asymptotic estimation are obtained.
关键词 singular perturbation nonlinear problem differential inequality
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Recovery of metals and other beneficial products from coal fly ash: a sustainable approach for fly ash management 被引量:8
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作者 Prafulla Kumar Sahoo Kangjoo Kim +1 位作者 M. A. Powell Sk Md Equeenuddin 《International Journal of Coal Science & Technology》 EI 2016年第3期267-283,共17页
Increasing production and disposal of coal fly ash (CFA) is a matter of serious environment concern. However, CFA contains various beneficial metals and mineral matters whose demand is increasing in the industrializ... Increasing production and disposal of coal fly ash (CFA) is a matter of serious environment concern. However, CFA contains various beneficial metals and mineral matters whose demand is increasing in the industrialized world, while natural supplies are diminishing. Therefore, recovery of these potential resources from CFA can be an alternative way to save mineral resources, as well as to reduce the environmental burden of CFA disposal. There are numerous methods developed for the recovery of beneficial products from CFA. Based on the US patents and journal literatures, the present review describes the recovery status and technologies of major elements such as Al, Si, Fe and Ti, and trace elements such as V, Ga, Ge, Se, Li, Mo, U, Au, Ag, Pt groups and rare earth elements (REEs) and other beneficial products such as magnetic materials, cenospheres, and unburned carbon from CFA. It also highlights the recovery efficiency and drawbacks for their extraction, and suggests future research to develop satisfactory results in terms of selective recovery and purification. 展开更多
关键词 Coal fly ash Beneficial elements RECOVERY Hydrometallurgical methods Extraction efficiency
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Symmetry Reduction of Initial-Value Problems for a Class of Third-order Evolution Equations 被引量:2
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作者 LI Ji-Na FENG Wei +1 位作者 QI Xin-Lei ZHANG Shun-Li 《Communications in Theoretical Physics》 SCIE CAS CSCD 2009年第7期55-59,共5页
Symmetry reduction of a class of third-order evolution equations that admit certain generalized conditionalsymmetries (GCSs) is implemented.The reducibility of the initial-value problem for an evolution equation to a ... Symmetry reduction of a class of third-order evolution equations that admit certain generalized conditionalsymmetries (GCSs) is implemented.The reducibility of the initial-value problem for an evolution equation to a Cauchyproblem for a system of ordinary differential equations (ODEs) is characterized via the GCS and its Lie symmetry.Complete classification theorems are obtained and some examples are taken to show the main reduction procedure. 展开更多
关键词 symmetry reduction third-order evolution equation Cauchy problem
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Enhancement of fine particle filtration with efficient humidification 被引量:3
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作者 Yumei Zhang Weidong Zhang +4 位作者 Zhengyu Yang Junteng Liu Fushen Yang Ning Li Le Du 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2016年第4期453-459,共7页
Filtration is one of the most effective methods to remove suspended fine particles from air. In filtration processes,pressure drop of compact dust cake causes problems in efficiency and economy, which has received inc... Filtration is one of the most effective methods to remove suspended fine particles from air. In filtration processes,pressure drop of compact dust cake causes problems in efficiency and economy, which has received increasing attention and still remains challenging. In this study, we developed a novel technique to intensify the filtration of fine particles with efficient humidification. Two strategies for humidification, including ultrasonic atomization and steam humidification(controlling of ambient humidity), were employed and proved to be both effective. The regeneration frequency of the filter could be reduced by 55% with ultrasonic atomization, while steam humidification could lead to a 78% reduction in regeneration frequency. The effect of operating conditions on pressure drop and the mass loading during filtration were investigated. The dust cake showed a loose and porous structure with an optimized droplet-to-particle ratio. With the ratio of 1.53 and 0.0282, the maximum mass loading was 552 g·m-2upon the ultrasonic atomization and 720 g·m-2upon the steam humidification. The results show that humidification could slow down the increase of pressure drop during filtration and improve the efficiency of process. 展开更多
关键词 FiltrationHumidificationLiquid bridgePressure dropDust cake structure
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The Existence of Solutions of Three-point Boundary Value Problems for Second Order Impulsive Differential Equation 被引量:5
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作者 CAI Guo-lan ZHANG Jian-ping GE Wei-gao 《Chinese Quarterly Journal of Mathematics》 CSCD 北大核心 2005年第3期247-257,共11页
We study the existence of solutions to the second order three-point boundary value problem:{x″(t)+f(t,x(t),x′(t))=0,t≠ti,△x(ti)=Ii(x(ti),x′(ti)),i=1,2,…,k,△x′(ti)=Ji(x(ti),x′(t)),i=1... We study the existence of solutions to the second order three-point boundary value problem:{x″(t)+f(t,x(t),x′(t))=0,t≠ti,△x(ti)=Ii(x(ti),x′(ti)),i=1,2,…,k,△x′(ti)=Ji(x(ti),x′(t)),i=1,2,…,k,x(0)=0=x(1)-αx(η),where 0〈η〈1,α∈R,and f:[0,1]×R×R→R,Ii:R×R→R,Ji:R×R→R(i=1,2,…,k)are continuous. Our results is new and different from previous results. In particular, we obtain the Green function of the problem, which makes the problem simpler. 展开更多
关键词 impulsive differential equation boundary value problem fixed points CONE
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