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新教材背景下中小学教师教材执行力探赜

教学与管理 2025年第1期 39-43页

作者：王中华刘玲玲贵州师范大学教育学院贵阳550025

在2024年秋季学期新教材启用的背景下,中小学教师的教材执行力对于构建高质量教材体系具有重要的现实意义,对于引领教材改革、落实培养学生核心素养及促进教材创新发展发挥着关键作用。当前,教师的教材执行力主要体现在教材执行前的认... 详细信息

在2024年秋季学期新教材启用的背景下,中小学教师的教材执行力对于构建高质量教材体系具有重要的现实意义,对于引领教材改革、落实培养学生核心素养及促进教材创新发展发挥着关键作用。当前,教师的教材执行力主要体现在教材执行前的认知能力、教材执行中的运用能力和教材执行后的反馈能力等三个维度。然而,教师在教材执行过程中存在认知迷思、运用失当和反馈匮乏的问题,导致教材执行效果不理想。基于此,转变思维方式、活用教材栏目、强化理论指导及改进评价机制成为提升中小学教师教材执行力、推动教材教学高质量发展的重要动力和关键策略。

关键词：新教材中小学教师教材执行力

An Ensemble Tree Classifier for Highly Imbalanced Data Classification

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Journal of Systems Science & Complexity 2021年第6期34卷 2250-2266页

作者： SHI Peibei wang zhong School of Computer Science and Technology Hefei Normal UniversityHefei 230601China

The performance of traditional imbalanced classification algorithms is degraded when dealing with highly imbalanced *** to deal with highly imbalanced data is a difficult *** this paper,the authors propose an ensemble tree classifier for highly imbalanced data *** ensemble tree classifier is constructed with a complete binary tree structure.A mathematical model is established based on the features and classification performance of the classifier,and it is proven that the model parameters of the ensemble classifier can be solved by ***,the AdaBoost method is used as the benchmark classifier to construct the tree structure ***,the classification cost of the model is calculated,and the quantitative mathematical description between the cost and features of the ensemble tree classifier model is ***,the cost of the classification model is transformed into an optimization problem,and the parameters of the integrated tree classifier are given through theoretical *** approach is tested on several highly imbalanced datasets in different fields and takes the AUC(area under the curve)and F-measure as evaluation *** with the traditional imbalanced classification algorithm,the ensemble tree classifier has better classification performance.

关键词： Ensemble learning F-measure imbalanced classification mathematical model

Theory and Experiments on Enclosing Control of Multi-Agent Systems

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IEEE/CAA Journal of Automatica Sinica 2021年第10期8卷 1677-1685页

作者： Yihui wang Yanfei Liu zhong wang High-Tech Institute of Xi’an Xi’an 710025China

This paper proposes a control strategy called enclosing *** strategy can be described as follows:the followers design their control inputs based on the state information of neighbor agents and move to specified *** convex hull formed by these followers contains the *** use the single-integrator model to describe the dynamics of the agents and proposes a continuous-time control protocol and a sampled-data based protocol for multi-agent systems with stationary leaders with fixed network *** the state differential equations are analyzed to obtain the parameter requirements for the system to achieve ***,the conditions achieving enclosing control are established for both protocols.A special enclosing control with no leader located on the convex hull boundary under the protocols is studied,which can effectively prevent enclosing control failures caused by errors in the ***,several simulations are proposed to validate theoretical results and compare the differences between the three control ***,experimental results on the multi-robot platform are provided to verify the feasibility of the protocol in the physical system.

关键词： Cooperative control directed network topology enclosing control leader-following multi-agent systems

Heisenberg-Type Quantum Steering by Continuous Weak Measurement in Circuit QED

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Communications in Theoretical Physics 2019年第7期71卷 798-806页

作者： zhong wang Department of Physics Beijing Normal University

Quantum steering has attracted great interest in the last decade,especially in the celebrated optomechanical,cold atom,and quantum optical ***,there is still a lack of studies on quantum steering in circuit quantum electrodynamics(QED),which provides a useful experimental platform for revealing novel quantum *** this work,we investigate the steering of qubit by continuous weak measurement in a circuit QED system and establish a set of multiplicative steering inequalities based on the Heisenberg uncertainty *** from the widely studied systems mentioned above,multiplicative steering inequalities in the circuit QED system are in various *** find that only a portion of them can be used to show the detection dependence of the qubit state and we also analyze the ***,we discuss several conditions for the violation of a typical steering inequality,including the measurement strength and methods in detecting the cavity field as well as the quantum efficiency of the *** preliminary work could be helpful to quantum steering experiments in circuit QED systems.

关键词： quantum steering circuit quantum electrodynamics quantum weak measurement

Aggregation operators on intuitionistic trapezoidal fuzzy number and its application to multi-criteria decision making problems

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Journal of Systems Engineering and Electronics 2009年第2期20卷 321-326页

作者： wang Jianqiang Zhang zhong School of Business Central South Univ. Changsha 410083 P. R. China

Intuitionistic trapezoidal fuzzy numbers and their operational laws are defined. Based on these operational laws, some aggregation operators, including intuitionistic trapezoidal fuzzy weighted arithmetic averaging operator and weighted geometric averaging operator are proposed. Expected values, score function, and accuracy function of intuitionitsic trapezoidal fuzzy numbers are defined. Based on these, a kind of intuitionistic trapezoidal fuzzy multi-criteria decision making method is proposed. By using these aggregation operators, criteria values are aggregated and integrated intuitionistic trapezoidal fuzzy numbers of alternatives are attained. By comparing score function and accuracy function values of integrated fuzzy numbers, a ranking of the whole alternative set can be attained. An example is given to show the feasibility and availability of the method.

关键词： intuitionistic trapezoidal fuzzy numbers aggregation operators multi-criteria decision making

On Inclusion of Permutation Modules

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Acta Mathematica Sinica,English Series 2013年第4期29卷 717-728页

作者： Li zhong wang School of Mathematical Sciences Peking University

Let H1,H2 be subgroups of a finite group G. Assume that G = umlH2yiH1 = n Uj=1 HlgiH1 and that y1=1,g1= 1. Let Di be the set consisting of right cosets of H~ contained in H2yiH1 and let dj （j --- 1,..., n） be the set consisting of right cosets contained in HlgjH1. We define the n x m matrix Mz （z = 1,..., m） whose columns and rows are indexed by Di and dj respectively and the （dk, Dz） entry is ｜Dzgk N Dl]. Let M =（M1 , Mm）. Assume that 1GH1 and 1H2G are semisimple permutation modules of a finite group G. In this paper, by using the matrix M, we give some sufficient and necessary conditions such that 1~1 is isomorphic to a submodule of 1H2G. As an application, we prove Foulkes＇ conjecture in special cases.

关键词： Permutaion module Schur's lemma Foulkes' conjecture double cosets

Photocatalytic Synthesis of Hydrocarbon Oxygenates from C_2H_6 and CO_2 over Pd-MoO_3/SiO_2 Catalyst

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Journal of Natural Gas Chemistry 2007年第2期16卷 173-178页

作者： Xitao wang zhong He Shunhe zhong Xiufen Xiao College of Chemical Engineering and Technology Tianjin University Tianjin 300072 China

Pd-MoO3/SiO2 catalyst has been prepared using the method of incipient wetness impregnation. The photo absorbing behaviors and chemisorbing properties of the catalyst have been characterized by UV-vis spectra and TPD-MS experiments. The results indicated that metal Pd loaded on MoOa/SiO2 has a significant effect on the photo absorbing performance of MoOa/SiO2, and an obvious blue shift of the absorption edge is produced. Under UV irradiation, the chemisorption state of CO2 undergoes decomposing process to form CO at 481 K, and a two-site adsorption state of ethane can be formed at around 496 K. Photo-oxidation of ethane using carbon dioxide can mainly produce propanal, ethanol and acetaldehyde in the temperature range of 353-423 K. The presence of metal Pd improves the catalytic activity remarkably.

关键词： photo-catalysis carbon dioxide ethane hydrocarbon oxygenates Pd-MoOa/SiO2 catalyst

Self-organized Criticality Behavior in Bulk Metallic Glasses

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Journal of Iron and Steel Research International 2016年第1期23卷 7-13页

作者： Jun-wei QIAO zhong wang Laboratory of Applied Physics and Mechanics of Advanced Materials College of Materials Science and EngineeringTaiyuan University of Technology

Serrated flows are known as repeated yielding of bulk metallic glasses（BMGs）during plastic deformation under different loading conditions,which are associated with the operation of shear *** to the statistics of some parameters,the shear avalanches can display a self-organized critical state,suggesting a large ductility of *** emergence of the self-organized criticality（SOC）behavior in different BMGs is due to the temperature,strain rate,and chemical *** SOC behavior is accompanied with the following phenomena：the interactions occur in the shear bands;the incubation time is longer than the relaxation time;the time interval is lacking of typical time scale;and the spatial or temporal parameters should display apower-law distribution.

关键词： self-organized criticality behavior bulk metallic glass serrated flow power-law distribution

The study on the shrink-fit multi-ring flywheel with fall-off function

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Nuclear Science and Techniques 2017年第3期28卷 115-122页

作者： Yu-Jin wang De-zhong wang Wei-zhong Guo Jun-Lian Yin Cheng-Wei wang School of Mechanical Engineering Shanghai Jiao Tong University Shanghai 200240 China Dalian Clean Energy Heavy Industrial Co. LTDDalian 116630 China

Structural integrity of the flywheel of reactor coolant pump is important for safe operation of a nuclear power plant. A shrink-fit multi-ring flywheel is designed with a fall-off function, i.e., it will separate from the shaft at a designed fall-off rotation speed, which is determined by the assembly process and the gravity. However, the two factors are ignored in the analytical method based on the Lame's equation. In this work, we conducted fall-off experiments to analyze the two factors and used the experimental data to verify the validity of the analytical method and the finite element method(FEM). The results show that FEM performs better than the analytical method in designing the falloff function of the flywheel, though FEM cannot successfully predict the strain variation with the rotational speed.

关键词： Multi-ring flywheel Fall-off rotational speed Shrink-fit assembly Gravity