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晏殊换题
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《小学阅读指南(低年级版)》 2021年第9期28-29,共2页
晏殊是北宋著名的文学家、政治家,他不仅文才出众,人品也十分端正,这在晏殊参加进士考试时得到了充分的体现晏殊天资聪颖,学习刻苦,自幼熟读史书,精通诗文,有“神童”的美誉。晏殊的老师很为有这样一位学生而骄傲,想把他推荐给皇帝,便... 晏殊是北宋著名的文学家、政治家,他不仅文才出众,人品也十分端正,这在晏殊参加进士考试时得到了充分的体现晏殊天资聪颖,学习刻苦,自幼熟读史书,精通诗文,有“神童”的美誉。晏殊的老师很为有这样一位学生而骄傲,想把他推荐给皇帝,便让已做了朝中大臣的自己以前的学生王大人带晏殊进京考试。 展开更多
关键词 晏殊 换题 熟读 老师
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应试作文审题四法
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作者 贺汪泽 《中共南昌市委党校学报》 2004年第1期54-57,共4页
高考作文命题一般都具备模糊性、导向性、多义性三个特点。这些特点体现在具体题型中又形态各异,但并不是没有规律可以探求。"审题四法",就试图解决这个问题。
关键词 "钩、挽、渡"审 多节 对立 换题
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例谈阅读教学“整体感知”的途径 被引量:1
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作者 王礼平 《教学月刊(中学版)(语文教学)》 2017年第1期62-64,共3页
在语文阅读教学中,把一篇文质兼美的文章肢解得支离破碎的做法,会导致学生无法从整体上感知文章内容,欣赏、领悟到文章的灵动与鲜活。反复朗读、复述课文、换题训练、猜想验证等,是引导学生快速、高效地整体感知文章的有效途径。
关键词 整体感知 朗读 复述 换题 猜想
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探究阅读教学“整体感知”的途径
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作者 王礼平 《教学管理与教育研究》 2016年第13期50-52,共3页
在语文阅读教学中,“整体感知”是文本解读的第一步。这对下一步要进行的文章局部的品味和具体问题的深入分析将起到很好的导向作用。反之,一篇文质兼美的文章也会肢解得支离破碎,让学生只见树木不见森林,无法从整体上欣赏、领悟到... 在语文阅读教学中,“整体感知”是文本解读的第一步。这对下一步要进行的文章局部的品味和具体问题的深入分析将起到很好的导向作用。反之,一篇文质兼美的文章也会肢解得支离破碎,让学生只见树木不见森林,无法从整体上欣赏、领悟到文章的灵动与鲜活。本文结合一些教学案例,探究、总结快速整体感知文章内容的有效途径,以期对语文教师的教学有所帮助。 展开更多
关键词 朗读 复述 换题 猜想 活动 整体感知
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阅读教学“整体感知”五途径
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作者 王礼平 《新课程研究(上旬)》 2016年第12期7-9,共3页
在语文阅读教学中,一些教师在解读、分析课文时,常常把一篇文质兼美的文章肢解得支离破碎,让学生只见树木,不见森林,无法从整体上感知文章内容,欣赏、领悟到文章的灵动与鲜活。长此以往,学生对语文的学习兴趣就会淡化,不利于语... 在语文阅读教学中,一些教师在解读、分析课文时,常常把一篇文质兼美的文章肢解得支离破碎,让学生只见树木,不见森林,无法从整体上感知文章内容,欣赏、领悟到文章的灵动与鲜活。长此以往,学生对语文的学习兴趣就会淡化,不利于语文能力和综合素养的提高。本文结合一些教学案例,探究、总结了快速整体感知文章内容的有效途径:反复“朗读”为抓手、“复述”课文巧穿掇、“换题”训练促感悟、“猜想”验证相比较和“活动”体验现情境,以期对语文教师的教学能有所帮助。 展开更多
关键词 朗读 复述 换题 猜想 整体感知
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Darboux Transformation and New Soliton-like Solutions for (1+1)-Dimensional Higher-Order Broer-Kaup System 被引量:1
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作者 YU Rui HUANG Ding-Jiang ZHANG Hong-Qing 《Communications in Theoretical Physics》 SCIE CAS CSCD 2006年第3期401-404,共4页
In this letter, we construct a kind of new Darboux transformation for the (1+1)-dimensional higher-order Broer-Kaup (HBK) system with the help of a gauge transformation of a spectral problem. By applying this new... In this letter, we construct a kind of new Darboux transformation for the (1+1)-dimensional higher-order Broer-Kaup (HBK) system with the help of a gauge transformation of a spectral problem. By applying this new Darboux transformation, some new soliton-like solutions of the (1+1)-dimensional HBK system are obtained. 展开更多
关键词 Darboux transformation (1+1)-dimensional higher-order Broer-Kaup system soliton-like solu-tions
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Direction of Arrivals Estimation for Correlated Broadband Radio Signals by MVDR Algorithm Using Wavelet 被引量:3
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作者 Ying Liu Chi Xie Yourun Zhang 《China Communications》 SCIE CSCD 2017年第3期190-197,共8页
A theoretical relationship between the wavelet transform and the fast fourier transformation(FFT) methods in broadband wireless signal is proposed for solving the direction of arrivals(DOAs) estimation problem. This l... A theoretical relationship between the wavelet transform and the fast fourier transformation(FFT) methods in broadband wireless signal is proposed for solving the direction of arrivals(DOAs) estimation problem. This leads naturally to the derivation of minimum variance distortionless response(MVDR) algorithm, which combines the benefits of subspace methods with those of wavelet, and spatially smoothed versions are utilized which exhibits good performance against correlated signals. We test the method's performance by simulating and comparing the performance of proposed algorithm, FFT MVDR and MVDR with correlated signals, and an improved performance is obtained. 展开更多
关键词 array antenna broadband radio signal direction of arrival MVDR algorithm wavelet
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A Hierarchy of Nonlinear Lattice Soliton Equations and Its Darboux Transformation
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作者 丁海勇 孙业朋 薛丰昌 《Communications in Theoretical Physics》 SCIE CAS CSCD 2010年第1期13-16,共4页
A hierarchy of nonlinear lattice soliton equations is derived from a new discrete spectral problem. The Hamiltonian structure of the resulting hierarchy is constructed by using a trace identity formula. Moreover, a Da... A hierarchy of nonlinear lattice soliton equations is derived from a new discrete spectral problem. The Hamiltonian structure of the resulting hierarchy is constructed by using a trace identity formula. Moreover, a Darboux transformation is established with the help of gauge transformations of Lax pairs for the typical lattice soliton equations. The exact solutions are given by applying the Darboux transformation. 展开更多
关键词 lattice soliton equation discrete Hamiltonian structure Darboux transformation exact solution
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Heat balance of solar-soil source heat pump compound system 被引量:2
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作者 陈金华 包修碧 +1 位作者 彭运林 贾宇 《Journal of Central South University》 SCIE EI CAS 2012年第3期809-815,共7页
Based on the state-of-the-art studies of solar-soil source heat pump compound system, operation patterns of solar-soil compound system were analyzed, particularly the advantages of parallel operation pattern. It is fo... Based on the state-of-the-art studies of solar-soil source heat pump compound system, operation patterns of solar-soil compound system were analyzed, particularly the advantages of parallel operation pattern. It is found that parallel operation pattern is better for solar-soil compound system. Furthermore, the heat balance issue of solar-soil compound system was emphatically analyzed from four aspects, which were annual analysis of heating and cooling load, the heat exchange of ground heat exchanger, capacity determination of solar-assisted heat sottrce and heat balance calculation of solar-soil compound system. Moreover, annual rate of heat balance in a solar-soil source heat pump compound system was calculated with a case study. It is shown that the annual heat unbalance ratio is 19%, which is less than 20%. As a result, the practical solar-soil compound system can basically maintain the heat balance of soil. 展开更多
关键词 solar-soil source heat pump compound system heat balance ground-coupled heat pump
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ANALYSIS OF AFFECTIVE ECG SIGNALS TOWARD EMOTION RECOGNITION 被引量:2
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作者 Xu Ya Liu Guangyuan +2 位作者 Hao Min Wen Wanhui Huang Xiting 《Journal of Electronics(China)》 2010年第1期8-14,共7页
Recently,as recognizing emotion has been one of the hallmarks of affective computing,more attention has been paid to physiological signals for emotion recognition.This paper presented an approach to emotion recognitio... Recently,as recognizing emotion has been one of the hallmarks of affective computing,more attention has been paid to physiological signals for emotion recognition.This paper presented an approach to emotion recognition using ElectroCardioGraphy(ECG) signals from multiple subjects.To collect reliable affective ECG data,we applied an arousal method by movie clips to make subjects experience specific emotions without external interference.Through precise location of P-QRS-T wave by continuous wavelet transform,an amount of ECG features was extracted sufficiently.Since feature selection is a combination optimization problem,Improved Binary Particle Swarm Optimization(IBPSO) based on neighborhood search was applied to search out effective features to improve classification results of emotion states with the help of fisher or K-Nearest Neighbor(KNN) classifier.In the experiment,it is shown that the approach is successful and the effective features got from ECG signals can express emotion states excellently. 展开更多
关键词 Emotion recognition ElectroCardioCraphy (ECG) signal Continuous wavelet transform Improved Binary Particle Swarm Optimization (IBPSO) Neighborhood search
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New Application of Weyl Correspondence in Studying Husimi Operator
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作者 FAN Hong-Yi GUO Qin MA Shan-Jun 《Communications in Theoretical Physics》 SCIE CAS CSCD 2008年第1期69-72,共4页
In this paper, the so-cMled Husimi operator △h(q,p; κ), which is introduced by smoothing out the Wigner operator △ω(q,p) br averaging over the "coarse graining" function exp[-κ(q' - q)^2- (p'- p)^2/κ... In this paper, the so-cMled Husimi operator △h(q,p; κ), which is introduced by smoothing out the Wigner operator △ω(q,p) br averaging over the "coarse graining" function exp[-κ(q' - q)^2- (p'- p)^2/κ], is now regarded as a Weft correspondence connecting the Husimi operator △h(q, p; κ) with its classical correspondence, since the integration kernel is just the Wigner operator. In this way we can easily identify |p, q; κ ) such that △ h ( q, p; κ ) = |p, q;κ ) (P, q; κ|, where |P, q;κ) is a new kind of squeezed coherent states. The entangled Husimi operator is also treated in this way. Thus a simple way to tnd the Husimi operator is presented. 展开更多
关键词 Weyl correspondence Husimi and entangled Husimi operators
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An extended iterative direct-forcing immersed boundary method in thermo-fluid problems with Dirichlet or Neumann boundary conditions
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作者 Ali Akbar Hosseinjani Ali Ashrafizadeh 《Journal of Central South University》 SCIE EI CAS CSCD 2017年第1期137-154,共18页
An iterative direct-forcing immersed boundary method is extended and used to solve convection heat transfer problems.The pressure,momentum source,and heat source at immersed boundary points are calculated simultaneous... An iterative direct-forcing immersed boundary method is extended and used to solve convection heat transfer problems.The pressure,momentum source,and heat source at immersed boundary points are calculated simultaneously to achieve the best coupling.Solutions of convection heat transfer problems with both Dirichlet and Neumann boundary conditions are presented.Two approaches for the implementation of Neumann boundary condition,i.e.direct and indirect methods,are introduced and compared in terms of accuracy and computational efficiency.Validation test cases include forced convection on a heated cylinder in an unbounded flow field and mixed convection around a circular body in a lid-driven cavity.Furthermore,the proposed method is applied to study the mixed convection around a heated rotating cylinder in a square enclosure with both iso-heat flux and iso-thermal boundary conditions.Computational results show that the order of accuracy of the indirect method is less than the direct method.However,the indirect method takes less computational time both in terms of the implementation of the boundary condition and the post processing time required to compute the heat transfer variables such as the Nusselt number.It is concluded that the iterative direct-forcing immersed boundary method is a powerful technique for the solution of convection heat transfer problems with stationary/moving boundaries and various boundary conditions. 展开更多
关键词 immersed boundary method direct forcing thermo-fluid problems neumann boundary condition
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DKP Oscillator in a Noncommutative Space
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作者 M.Falek M.Merad 《Communications in Theoretical Physics》 SCIE CAS CSCD 2008年第9期587-592,共6页
We present the DKP oscillator model of spins 0 and 1, in a noncommutative space. In the case of spin 0, the equation is reduced to Klein Gordon oscillator type, the wave functions are then deduced and compared with th... We present the DKP oscillator model of spins 0 and 1, in a noncommutative space. In the case of spin 0, the equation is reduced to Klein Gordon oscillator type, the wave functions are then deduced and compared with the DKP spinless particle subjected to the interaction of a constant magnetic field. For the case of spin 1, the problem is equivalent with the behavior of the DKP equation of spin 1 in a commutative space describing the movement of a vectorial boson subjected to the action of a constant magnetic field with additional correction which depends on the noncommutativity parameter. 展开更多
关键词 noncommutative geometry DKP oscillator
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Cryptanalysis of a Cryptosystem with Non- Commutative Platform Groups 被引量:1
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作者 Jinhui Liu Jianwei Jia +3 位作者 Huanguo Zhang Rongwei Yu Yong Yu Wangqing Wu 《China Communications》 SCIE CSCD 2018年第2期67-73,共7页
A cryptosystem with non-commutative platform groups based on conjugator search problem was recently introduced at Neural Computing and Applications 2016. Its versatility was illustrated by building a public-key encryp... A cryptosystem with non-commutative platform groups based on conjugator search problem was recently introduced at Neural Computing and Applications 2016. Its versatility was illustrated by building a public-key encryption scheme. We propose an algebraic key-recovery attack in the polynomial computational complexity. Furthermore, we peel off the encryption and decryption process and propose attack methods for solving the conjugator search problem over the given non-abelian group. Finally, we provide corresponding practical attack examples to illustrate the attack methods in our cryptanalysis, and provide some improved suggestions. 展开更多
关键词 CRYPTANALYSIS post-quantum com-putational cryptography conjugator searchproblem computational complexity
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The Generalized Clinical Trial Outcomes
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作者 Xi Chen 《Journal of Mathematics and System Science》 2013年第4期167-172,共6页
The clinical trial based on the likelihood ratio test has many preferred statistical properties such as asymptotic and self-adaptive properties. Along with the constant MCID (minimum clinical important difference), ... The clinical trial based on the likelihood ratio test has many preferred statistical properties such as asymptotic and self-adaptive properties. Along with the constant MCID (minimum clinical important difference), the conventional trial outcomes can be expanded into the strict, aggressive and conservative outcomes; it makes the interpretations of trial conclusion more flexible. Besides, it will show that the trial goal and trial outcome are different concept. The trial goal switching is not a statistical issue, but a clinical decision. 展开更多
关键词 Trial goal trial outcome STRICT aggressive and conservative outcomes.
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Logarithm-transform piecewise linearization method for the optimization of fasoline blending processes
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作者 Yu Li Tong Qiu 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2018年第8期1684-1691,共8页
Gasoline blending is a key process in a petroleum refinery, as it can yield 60%–70% of a typical refinery's total revenue. This process not only exhibits non-convex nonlinear blending behavior due to the complica... Gasoline blending is a key process in a petroleum refinery, as it can yield 60%–70% of a typical refinery's total revenue. This process not only exhibits non-convex nonlinear blending behavior due to the complicated blend mechanism of various component feedstocks with different quality properties, but also involves global optimum searching among numerous blending recipes. Since blend products are required to meet a series of quality requirements and highly-sensitive to the proportion changes of blending feedstocks, global optimization methods for NLP problems are often difficult to be applied because of heavy computational burdens. Thus, piecewise linearization methods are naturally proposed to provide an approximate global optimum solution by adding binary variables into the models and converting the original NLP problems into MILP ones. In this paper, Logarithmtransform piecewise linearization(LTPL) method, an improved piecewise linearization, is proposed. In this method a logarithm transform is applied to convert multi-variable multi-degree constraints into a series of single-variable constraints. As a result, the number of 0–1 variables is greatly reduced. In the final part of this paper, an industrial case study is conducted to demonstrate the effectiveness of LTPL method. In principle, this method would be useful for blending problems with complicated empirical or theoretical models. 展开更多
关键词 Piecewise linearization BLENDING Non-convex Global optimization
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An immune-swarm intelligence based algorithm for deterministic coverage problems of wireless sensor networks 被引量:1
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作者 刘继忠 王保磊 +1 位作者 敖俊宇 Q.M.Jonathan WU 《Journal of Central South University》 SCIE EI CAS 2012年第11期3154-3161,共8页
A novel immune-swarm intelligence (ISI) based algorithm for solving the deterministic coverage problems of wireless sensor networks was presented.It makes full use of information sharing and retains diversity from the... A novel immune-swarm intelligence (ISI) based algorithm for solving the deterministic coverage problems of wireless sensor networks was presented.It makes full use of information sharing and retains diversity from the principle of particle swarm optimization (PSO) and artificial immune system (AIS).The algorithm was analyzed in detail and proper swarm size,evolving generations,gene-exchange individual order,and gene-exchange proportion in molecule were obtained for better algorithm performances.According to the test results,the appropriate parameters are about 50 swarm individuals,over 3 000 evolving generations,20%-25% gene-exchange proportion in molecule with gene-exchange taking place between better fitness affinity individuals.The algorithm is practical and effective in maximizing the coverage probability with given number of sensors and minimizing sensor numbers with required coverage probability in sensor placement.It can reach a better result quickly,especially with the proper calculation parameters. 展开更多
关键词 wireless sensor network deterministic area coverage immune-swarm algorithm particle swarm optimization artificialimmune system
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A Vehicle Routing Problem Based on Intelligent Batteries Transfer Management for the EV Network 被引量:2
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作者 XIA Yamei CHENG Bo 《China Communications》 SCIE CSCD 2014年第5期160-169,共10页
Batteries transfer management is one important aspect in electric vehicle(EV)network's intelligent operation management system.Batteries transfer is a special and much more complex VRP(Vehicle Routing Problem) whi... Batteries transfer management is one important aspect in electric vehicle(EV)network's intelligent operation management system.Batteries transfer is a special and much more complex VRP(Vehicle Routing Problem) which takes the multiple constraints such as dynamic multi-depots,time windows,simultaneous pickups and deliveries,distance minimization,etc.into account.We call it VRPEVB(VRP with EV Batteries).This paper,based on the intelligent management model of EV's battery power,puts forward a battery transfer algorithm for the EV network which considers the traffic congestion that changes dynamically and uses improved Ant Colony Optimization.By setting a reasonable tabv range,special update rules of the pheromone and path list memory functions,the algorithm can have a better convergence,and its feasibility is proved by the experiment in an EV's demonstration operation system. 展开更多
关键词 VRP battery power management ant colony algorithm electric vehicle network
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Dispersion Relations in Binary Gas Mixtures From a Kinetic Theory
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作者 敖继军 汪阿其拉图 杨梅荣 《Communications in Theoretical Physics》 SCIE CAS CSCD 2011年第6期1095-1101,共7页
Sound propagation and the initial value problems in gas mixtures of two components are investigated. By using the eigen theory of linearized Boltzmann equations, a model equations is formed, with the use of the Fourie... Sound propagation and the initial value problems in gas mixtures of two components are investigated. By using the eigen theory of linearized Boltzmann equations, a model equations is formed, with the use of the Fourier-Laplace transform for model equations derived, the dispersion relations for both components are obtained. 展开更多
关键词 gas mixtures linearized Boltzmann operator dispersion relation model equations
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Cellular Automata Model for a Specific Traffic Problem
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作者 Reuben Thieberger 《Computer Technology and Application》 2012年第11期744-748,共5页
We examine the possibility of using alternative roads when confronted with traffic congestion. One is the main road; the second alternative is through a secondary road into which additional cars are coming. To keep th... We examine the possibility of using alternative roads when confronted with traffic congestion. One is the main road; the second alternative is through a secondary road into which additional cars are coming. To keep the total number of vehicles constant, we subtract on the main road the same number of cars as where added to the bypass. We check the Fourier transform of the average on each traffic light cycles of the velocity on the main road and bypass. In the jammed region we obtained different results for the main road and for the bypass. Whereas for the main road we obtained l/f, for the bypass we obtained "red noise", i.e., 1/f2. 展开更多
关键词 Elementary cellular automata TRAFFIC pink noise.
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