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“钢结构设计原理”课程教学新模式的探索与实践

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教育教学论坛 2024年第15期 81-84页

作者：余志祥陈景鑫张明西南交通大学土木工程学院四川成都610031

为响应《关于深化本科教育教学改革全面提高人才培养质量的意见》,提高本科教学质量,教学课题组探索了“钢结构设计原理”课程教学的新模式,即以线下教学为主,结合线上直播授课、网络教学平台以及QQ交流群内讨论答疑的方式开展课程教学... 详细信息

为响应《关于深化本科教育教学改革全面提高人才培养质量的意见》,提高本科教学质量,教学课题组探索了“钢结构设计原理”课程教学的新模式,即以线下教学为主,结合线上直播授课、网络教学平台以及QQ交流群内讨论答疑的方式开展课程教学,在尽可能给予学生最好的课堂学习体验的同时,也为他们提供优质的课后学习资料。线上与线下并行、理论与实践结合是该新模式探索的关键。此外,引入钢结构工程中蕴含的丰富的思政元素,综合提升学生的专业知识与思想品德素养。

关键词：本科教学新模式钢结构设计原理线上与线下并行教学网络教学平台 QQ交流群

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ANSYS辅助土木工程专业课程教学的思考

教育教学论坛 2024年第23期 9-12页

作者：余志祥刘楠枫张明西南交通大学土木工程学院四川成都610031

土木工程专业课程涉及面广,专业度高,其主要内容分为专业基础课和专业核心课两大类,涉及的专业术语多,前后课程关联性强,并要求学生在学习中能够将具体工程问题抽象为典型工程模型进行分析计算。ANSYS是一款集建模求解能力、非线性分析... 详细信息

土木工程专业课程涉及面广,专业度高,其主要内容分为专业基础课和专业核心课两大类,涉及的专业术语多,前后课程关联性强,并要求学生在学习中能够将具体工程问题抽象为典型工程模型进行分析计算。ANSYS是一款集建模求解能力、非线性分析能力、网格划分及优化能力、耦合分析能力为一体的有限元分析软件,在土木工程中被广泛运用。在土木工程专业课程中,利用ANSYS辅助分析工程问题,能使抽象模型直观化、复杂信息有序化、分析结果形象化,能够提高学生的学习兴趣和自主实践能力。

关键词： ANSYS 土木工程专业课程课程教学

PTCs promoted biphasic oxidation of ethylbenzene catalyzed by NHPI and CoSPc

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Chinese Chemical Letters 2012年第8期23卷 895-898页

作者： yu Lu Zhou Sha Sha Lin Dao Hong Xia yu zhi xiang College of Science State Key Laboratory of Heavy OilChina University of PetroleumQingdao 266580China

An easy workup and environmentally friendly method to convert ethylbenzene into the corresponding oxides, catalyzed by a combined catalytic system consisting of NHPI and CoSPc, was developed in a water involved liquid-liquid heterogeneous system. Experimental results showed that the reaction performed well facilitated by PTCs at multigrams material level, under which the conversion rate of ethylbenzene and the selectivity of acetophenone reached 60.6% and 95.2% after 0.5 h of reaction in oxygen atmosphere. An oxidation process was orooosed at the end of this oaoer.

关键词： Ethylbenzene Aerobic oxidation NHPI CoSPc PTC

Synthesis and characterization of HPMA copolymer-5-FU conjugates

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Chinese Chemical Letters 2008年第2期19卷 137-140页

作者： Fang yuan Fu Chen Qing yu xiang Xuan Qin zhi Rong Zhang yuan Huang Key Laboratory of Drug Targeting of Ministry of Education West China School of Pharmacy Sichuan University Chengdu 610041 China

N-（2-Hydroxypropyl） methacrylamide copolymer-5-fluorouracil （PHPMA-FU） conjugates were synthesized by a novel and simplified synthetic route, and characterized by UV, FTIR and HPLC analyses. The conjugated content of 5-fluorouracil （5-FU） was 3.41 ± 0.07 wt%. The stabilities of PHPMA-FU conjugates under different conditions were studied. The results showed that HPMA copolymer was a potential carrier for tumor-targeting delivery of 5-FU.

关键词： HPMA copolymer 5-Fluorouracil Conjugates Characterization Stability

Hydrodynamic Performance of An Integrated System of Breakwater and A Multi-Chamber OWC Wave Energy Converter

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China Ocean Engineering 2024年第4期38卷 543-556页

作者： NING De-zhi ZHANG xiang-yu WANG Rong-quan ZHAO Ming State Key Laboratory of Coastal and Offshore Engineering Dalian University of TechnologyDalian 116024China Dalian Key Laboratory of Offshore Renewable Energy Dalian University of TechnologyDalian 116024China School of Computing Engineering and MathematicsUniversity of Western SydneyPenrith NSW 2751Australia

A multi-chamber oscillating water column wave energy converter(OWC-WEC)integrated to a breakwater is *** hydrodynamic characteristics of the device are analyzed using an analytical model based on the linear potential flow theory.A pneumatic model is employed to investigate the relationship between the air mass flux in the chamber and the turbine *** effects of chamber width,wall draft and wall thickness on the hydrodynamic performance of a dual-chamber OWC-WEC are *** results demonstrate that the device,with a smaller front wall draft and a wider rear chamber exhibits a broader effective frequency *** device with a chamber-width-ratio of 1:3 performs better in terms of power ***,results from the analysis of a triplechamber OWC-WEC demonstrate that reducing the front chamber width and increasing the rearward chamber width can improve the total performance of the *** the number of chambers from 1 to 2 or 3 can widen the effective frequency bandwidth.

关键词： oscillating water column power extraction efficiency potential flow theory wave energy converter multi-chamber

Synthesis and self-association of dibenzothiophene derivatives for simulation of hydrogen bonding interaction in asphaltenes

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Petroleum Science 2015年第3期12卷 501-508页

作者： Ying-Hui Bian Shao-Tang Xu Le-Chun Song yu-Lu Zhou Li-Jun Zhu yu-zhi xiang Dao-Hong Xia State Key Laboratory of Heavy Oil Processing College of Chemical EngineeringChina University of Petroleum (East China)

The dibenzothiophene derivatives, namely 2-（dibenzothiophene-2-carbonyl）benzoic acid and 2-（diben- zothiophene-2-carbonyl）alkyl benzoate, were synthesized and characterized by nuclear magnetic resonance （1H NMR）, matrix-assisted laser desorption/ionization time of flight mass spectrometry, and elemental analysis. The self- association behavior of these dibenzothiophene derivatives in CH2C12 and CH3CN was investigated using UV-visible absorption spectroscopy, fourier transform infrared spec- troscopy, and atomic force microscopy. It was found that the carboxylic acid exhibited a strong self-association trend in CH2C12 solution at a concentration of about 5 × 10^-7 M. Hydrogen bonding of carboxyl in the dibenzoth- iophene derivatives was confirmed to be the main driving force for the formation of the carboxylic acid aggregates.

关键词： Dibenzothiophene derivatives Association Hydrogen bonding Simulation Asphaltenes

Miniaturized power detection module operating in millimeter wave band

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Journal of Electronic Science and Technology 2024年第2期22卷 69-76页

作者： xiang Zhou zhi-Yong Zhong School of Electronic Science and Engineering University of Electronic Science and Technology of ChinaChengdu611731China

The miniaturized broadband detection module can be embedded into the microwave application system such as the front end of the transmitter to detect the power or other parameters in real *** is highly prospective in military and scientific *** this paper,a broadband power detection module operating at 26.5 GHz-40.0 GHz is designed by using low-barrier Schottky diode as the detector and a comparator for threshold *** module can dynamically detect the power range between-10 dBm and 10 dBm with the detection accuracy of 0.1 ***,the temperature compensation circuit is also applied to improve the measurement *** a result,the resulted error low to±1 dB in the temperature range of -55℃ to +85℃ is *** designed module is encapsulated by a Kovar alloy with a small volume of 9 mm×6 mm×3 *** endows the designed module the advantages of small size,easy integration,and low cost,and even it is applicable to high-reliability environments such as satellites.

关键词： Diode Miniaturization Power detection Temperature compensation

Iron–doped bismuth oxybromides as visible-light-responsive Fenton catalysts for the degradation of atrazine in aqueous phases

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Journal of Environmental Sciences 2024年第3期137卷 321-332页

作者： Yong-Li Cai yu-Hang Xu Ji-Zun xiang zhi-Qiang Zhang Qiu-xiang He Ya-Feng Li Jian Lü Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation College of Resources and EnvironmentFujian Agriculture and Forestry UniversityFuzhou 350002China State Key Laboratory of Photocatalysis on Energy and Environment Fuzhou UniversityFuzhou 350116China

Pesticides and its degradation products,being well–known residues in soil,have recently been detected in many water bodies as pollutants of emerging concerns,and thus there is a contemporary demand to develop viable and cost–effective techniques for the removal of related organic pollutants in aqueous ***,a visible-light-responsive Fenton system was constructed with iron–doped bismuth oxybromides(Fe–BiOBr)as the *** the advantage of sustainable Fe(Ⅲ)/Fe(Ⅱ)conversion and optimized H_(2)O_(2)utilization,the optimal Fe–BiOBr–2 catalyst showed an excellent atrazine removal efficiency of 97.61%in 120 min,which is superior than the traditional homogeneous Fenton and the majority of heterogeneous processes documented in the *** this photo–Fenton system,hydroxyl(·OH)and superoxide(·O_(2)^(-))radicals were dominant active species contributed to the oxidative degradation of *** to the production of various active radicals,five degradation pathways were proposed based on the identification of intermediates and degradation ***,this work not only demonstrates a fundamental insight into creating highly efficient and atom economic photo-Fenton systems,but also provides a complementary strategy for the treatment of organic pollutants in water.

关键词： Bismuth oxybromide Photo–Fenton Atrazine Catalytic degradation

绿色节能理念下的纤维织物风管施工控制要点研究

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智能建筑与智慧城市 2024年第1期 97-99页

作者：李梦刚丁涛刘弋民喻志祥朱厚铭中国建筑第八工程局有限公司

文章总结归纳了纤维织物风管的优点,指出了其与其他冷风机、风管系统的差异,立足节能环保视角,提出了纤维织物风管系统施工安装过程中的控制要点与注意事项,以缩短工期,减少风管管道内阻力,改变气流组织,有效调节风速及冷量分布,降低空... 详细信息

文章总结归纳了纤维织物风管的优点,指出了其与其他冷风机、风管系统的差异,立足节能环保视角,提出了纤维织物风管系统施工安装过程中的控制要点与注意事项,以缩短工期,减少风管管道内阻力,改变气流组织,有效调节风速及冷量分布,降低空调设备负荷,提高通风系统能效,保证空调系统安装与使用的生态效益与经济效益。

关键词：空调通风系统纤维织物风管绿色节能施工控制气流组织