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高职院校“双师型”教师现状与问题分析:以湖南省某职业技术学院为例

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承德石油高等专科学校学报 2024年第2期26卷 60-64页

作者：罗炜刘慧君湖南生物机电职业技术学院湖南长沙410127

以湖南省某职业技术学院的“双师型”教师队伍建设现状进行了调查分析,针对该职业院校“双师型”教师队伍存在的教师占比数量、教师结构配比、教师建设制度等一系列问题,提出了规范师资队伍标准,协调师资队伍配置,健全师资队伍管理机制... 详细信息

以湖南省某职业技术学院的“双师型”教师队伍建设现状进行了调查分析,针对该职业院校“双师型”教师队伍存在的教师占比数量、教师结构配比、教师建设制度等一系列问题,提出了规范师资队伍标准,协调师资队伍配置,健全师资队伍管理机制等应对策略,从而积极打造一支高水平的“双师型”教师队伍。

关键词：高职院校双师型现状分析

High dynamic adaptive mobility network model and performance analysis

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Science in China(Series F) 2008年第8期51卷 1154-1166页

作者： liu hui ZHANG jun School of Electronic and Information Engineering Beijing University of Aeronautics and AstronauticsBeijing 100083 China

Since mobile networks are not currently deployed on a large scale, research in this area is mostly by simulation. Among other simulation parameters, the mobility model plays a very important role in determining the protocol performance in MANET. Based on random direction mobility model, a high dynamic adaptive mobility network model is proposed in the paper. The algorithms and modeling are mainly studied and explained in detail. The technique keystone is that normal distribution is combined with uniform distribution and inertial feedback control is combined with kinematics, through the adaptive control on nodes speed and prediction tracking on nodes routes, an adaptive model is designed, which can be used in simulations to produce realistic and dynamic network scenarios. It is the adaptability that nodes mobile parameters can be adjusted randomly in threedimensional space. As a whole, colony mobility can show some rules. Such random movement processes as varied speed and dwells are simulated realistically. Such problems as sharp turns and urgent stops are smoothed well. The model can be adapted to not only common dynamic scenarios, but also high dynamic scenarios. Finally, the mobility model performance is analyzed and validated based on random dynamic scenarios simulations.

关键词： mobility model network node high dynamic adaptive control

Adsorption and correlation with their thermodynamic properties of triazine herbicides on soils

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Journal of Environmental Sciences 2003年第4期15卷 443-448页

作者： YANG Wei chun liu Wei ping liu hui jun liu Guang shen Institute of Environmental Science Zhejiang UniversityHangzhou 310027China.

Adsorption of atrazine, prometryne and prometon was determined on six soils with different physical and chemical properties. The adsorption isotherms of three herbicides could well fit Freundlich equation. On all of s... 详细信息

关键词： triazine herbicide soil adsorption excess thermodynamic properties

Adsorption of chloroacetanilide herbicides on soil (I) Structural influence of chloroacetanilide herbicide for their adsorption on soils and its components

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Journal of Environmental Sciences 2001年第1期13卷 37-45页

作者： liu Wei ping liu hui jun ZHENG Wei LU Jian hang Institute of Environmental Science Zhejiang University at Yuquan CampusHangzhou 310027China.

Adsorption of chloroacetanilide herbicide acetochlor, alachlor, metolachlor and propachlor on soils and soil components was determined, and the structural differences of these herbicides were used to explain the order of sorptivity. Adsorption isotherms for all herbicide-soil combinations conformed to the Freundlich equation, and Kf increased with increasing soil organic carbon content. Kd on soil humic acid was greater than that on clay, but association of humic acid with clay reduced the overall adsorption. On all soils and soil humic acids, herbicide adsorption decreased in the order: metolachlor > acetochlor > propachlor > alachlor. On Ca2+ - montmorrilonite, the order changed to metolachlor > acetochlor > alachlor > propachlor. FT-IR spectra of herbicide-clay or herbicide-humic acid-clay mixtures showed that H-bonding and charge transfer were the primary interaction pathways between these compounds and the surface of clay or humic acids. The different moieties attached to 2-chloro-acetanilide and their unique arrangement may have influenced the binding mechanisms and thus the sorptivity of these herbicides. This study indicates that the structural difference of pesticides in the same classes may be used as a molecular probe to obtain a better understanding of sorption mechanisms of pesticides on soil.

关键词： adsorption chloroacetanilide herbicides soil organic matter clay

Erosion-corrosion investigation of high chromium cast irons using newly designed jet type tester

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中国有色金属学会会刊：英文版 2004年第Z1期14卷 405-412页

作者： TU Xiao-hui liu jun-quan LI Wei ZHANG Feng-hua SU jun-yi School of Materials Science and Engineering Xi''an Jiaotong University Xi''an 710049 China Wear Materials Research Center Guangzhou Research Institute of Nonferrous Metals Guangzhou 510651 China College of Industrial Equipment and Control Engineering South China University of Technology Guangzhou 510640 China Department of Chemistry Ji''nan University Guangzhou 510632 China Wear Materials Research Center Guangzhou Research Institute of Nonferrous Metals Guangzhou 510651 China School of Materials Science and Engineering Xi''an Jiaotong University Xi''an 710049 China

A jet type erosion-corrosion tester was developed for the erosion-corrosion investigation of high-chromium cast irons. During tests the size and the shape of particles in the slurry can be maintained stable. The jet velocity and attack angle can be accurately controlled. The repeatability and ranking consistency of the test results are satisfactory. The test parameters can be adjusted in a wide range, so that the tester can simulate various practical working conditions. Electrochemical test data can be automatically collected and processed. Dynamic polarization curves can be obtained during erosion-corrosion test, which can be used to study the dynamic corrosion *** high chromium cast irons were studied in hot concentrated alkaline slurry. The results show that the erosioncorrosion mass loss rate and dynamic corrosion rate of 295Cr26 iron is lower than that of 185Cr13 under the conditions similar to alumyte processing. The mechanism of erosion-corrosion of 295Cr26 and 185Cr13 was studied by using the tester. The interaction between erosion and corrosion was also quantitatively evaluated.

关键词： erosion-corrosion tester repeatability chromium cast iron hot concentrated alkali

Energy-efficient buffer and service rate allocation in manufacturing systems using hybrid machine learning and evolutionary algorithms

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Advances in Manufacturing 2024年第2期12卷 227-251页

作者： Si-Xiao Gao hui liu jun Ota Key Laboratory of Traffic Safety on Track of Ministry of Education Institute of Artificial Intelligence and Robotics(IAIR)School of Traffic and Transportation EngineeringCentral South UniversityChangsha410075People’s Republic of China Research into Artifacts Center for Engineering School of EngineeringThe University of TokyoTokyoJapan

Currently,simultaneous buffer and service rate allocation is a topic of interest in the optimization of manufacturing *** allocation problems have been solved previously to satisfy economic requirements;however,owing to the progress of green manufacturing,energy conservation and environmental protection have become increasingly ***,an energy-efficient approach is developed to maximize the throughput and minimize the energy consumption of manufacturing systems,subject to the total buffer capacity,total service rate,and predefined energy *** energy-efficient approach integrates the simulated annealing-non-dominated sorting genetic algorithm-II with the honey badger algorithm-histogram-based gradient boosting regression *** former algorithm searches for Pareto-optimal solutions of sufficient *** latter algorithm builds prediction models to rapidly calculate the throughput,energy consumption,and energy *** examples show that the proposed hybrid approach can achieve a better solution quality compared with previously reported ***,the prediction models can rapidly evaluate manufacturing systems with sufficient *** study benefits the multi-objective optimization of green manufacturing systems.

关键词： Energy-efficient allocation Multi-objective optimization Energy efficiency Energy consumption Machine learning

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Co基催化材料在氨硼烷水解释氢中的应用

现代化工 2024年第6期44卷 30-34,40页

作者：李梦婷刘军辉李想宋亚坤郭旭明河南科技大学化学化工学院河南洛阳471023 河南科技大学材料科学与工程学院河南洛阳471023

从提高Co基催化材料在氨硼烷水解释氢中的催化性能的角度出发,综述了不同类型Co基催化材料在释氢反应中的应用,阐明了Co基催化材料的设计思路以及在反应中的催化作用机制,并对Co基催化材料在催化氨硼烷水解释氢中所存在的问题以及今后... 详细信息

从提高Co基催化材料在氨硼烷水解释氢中的催化性能的角度出发,综述了不同类型Co基催化材料在释氢反应中的应用,阐明了Co基催化材料的设计思路以及在反应中的催化作用机制,并对Co基催化材料在催化氨硼烷水解释氢中所存在的问题以及今后的发展进行了总结和展望。

关键词： Co基催化剂氨硼烷水解制氢催化活性

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青海冻土地区路基施工技术

工程建设与设计 2024年第13期 192-196页

作者：张猛刘耀辉刘军辉袁乾龙陈志敏邵林中国建筑第二工程局有限公司北京100070 中国市政工程西北设计研究院有限公司兰州730030 兰州交通大学土木工程学院兰州730070

青海高原路基工程极易发生冻胀融沉等病害,对道路施工造成巨大不利影响。论文从寒区冻土路基的设计施工原则出发,总结出青海高原冻土地区公路工程设计施工的总体原则,通过合理选择路基材料、设置试验段、特殊路基处理、“截、排、引”... 详细信息

青海高原路基工程极易发生冻胀融沉等病害,对道路施工造成巨大不利影响。论文从寒区冻土路基的设计施工原则出发,总结出青海高原冻土地区公路工程设计施工的总体原则,通过合理选择路基材料、设置试验段、特殊路基处理、“截、排、引”共同治水、合理选择施工季节等多措施综合防治冻害。

关键词：路基冻土施工技术

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Photodegradation of α-naphthaleneacetic acid in aqueous solution

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Journal of Environmental Sciences 2001年第3期13卷 361-364页

作者： liu hui jun, ZHOU Zhu fei, liu Wei ping (Environmental Science Institute, Zhejiang University, Hangzhou 310027, China. 浙江大学浙江杭州 310027

Kinetic processes of a-naphthaleneacetic acid (NAA) photolysis were studied under different conditions. The results showed that the ultraviolet light was more effective than fluorescent light in promoting degradation, and the degradation of NAA under ultraviolet light followed the first order kinetics with the photolysis rate constant of 1.15 x 10-2 min-1 and half-life time (t1/2) of 60 min. Further, it was proved that the photolysis rate was higher in the presence of oxygen, titanium dioxide (TiO2), and low pH (acidic solution). At last, two photolysis intermediates were identified by GC-MS and possible photolysis pathways were proposed.

关键词： Acids Degradation Fluorescence Photolysis Solutions