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深化有机化学实验教学改革和学生能力培养

实验室科学 2023年第4期26卷 112-114,119页

作者：陈木娟王辉曾卓汪朝阳朱育林陶敬奇蒋华卫华南师范大学化学学院广东广州510006

有机化学实验课程是化学相关专业的基础核心课程,也是培养学生能力的重要实践课程。在有机化学实验教学过程中推行系列深化实验教学改革的措施,引入课程思政教育,推行线上线下混合式教学,建构新的基于能力培养的学习评价体系等。教学实... 详细信息

有机化学实验课程是化学相关专业的基础核心课程,也是培养学生能力的重要实践课程。在有机化学实验教学过程中推行系列深化实验教学改革的措施,引入课程思政教育,推行线上线下混合式教学,建构新的基于能力培养的学习评价体系等。教学实践表明,上述措施能有效提高有机化学实验课程的教学质量,达到课程培养学生能力的目标。

关键词：有机化学实验教学课程思政学生能力学习评价

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透明AlON陶瓷研究现状及应用

陶瓷 2008年第12期 20-23页

作者：田庭燕杜洪兵孙峰姜华伟陈广乐刘妍彭珍珍北京中材人工晶体有限公司北京100018

主要介绍透明氮氧化铝(AlON)陶瓷的研究进展,对AlON的制备方法和应用做了综述和介绍,并对其发展前景和存在的问题作了展望与分析。

关键词：透明陶瓷 AION 制备应用

pH-Responsive and Buffering Macromolecule Aqueous Absorbent and Mathematic Model-Based Feasibility Evaluation for SO_2 Capture

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Transactions of Tianjin University 2019年第3期25卷 226-236页

作者： Wei Feng Wenhao Gu Lühong Zhang Xiaowei Tantai Bin jiang huawei Yang Hongjie Zhang School of Chemical Engineering and Technology Tianjin University School of Chemistry and Materials Science Ludong University

An organic macromolecule, poly(1-vinylimidazole), with an appropriate polymerization degree was proposed and mixed with water to form a novel aqueous absorbent for SO_2 capture. This aqueous solution absorbent has the advantages of simple preparation, good physicochemical properties, environment-friendliness, high ability in deep removal of SO_2, and excellent reusability. Moreover, pH-responsive behavior, pH buffering absorption mechanism, and their synergistic effect on absorption performance were revealed. The solubilities of SO_2 in the absorbent were measured in detail, and the results demonstrated excellent absorption capacity and recyclability. Then, mathematic models that describe SO_2 absorption equilibrium were established, and the corresponding parameters were estimated. More importantly, on the basis of model and experimental data, the absorption and desorption could maintain high efficiency within a wide operating region. In summary, this work provided a low-cost, efficient, and unique absorbent for SO_2 capture and verified its technical feasibility in industrial application.

关键词： Poly(1-vinylimidazole) pH buffer pH responsibility SO2 capture Flue gas desulfurization

Defining stratigraphic oil and gas plays by modifying structural plays:A case study from the Xihu Sag,east China Sea Shelf Basin

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Energy Geoscience 2021年第1期2卷 41-51页

作者： Feng Ding Chunyu Xie Xinghai Zhou Cen jiang Kun Li Lifeng Wan Pei Zhang huawei Niu Shanghai Offshore Oil and Gas Exploration and Production Company SINOPECShanghai200120China

The study focuses on an area of relatively mature oil and gas exploration located in the western slope of the Xihu Sag,East China Sea Shelf *** stratigraphic oil and gas plays are introduced to replenish the shrinking prospect inventory in the *** reservoirs of these plays are traditional pay intervals of the Eocene Pinghu Formation and Baoshi Formation composed of tide-dominated delta front,tidal flat and delta front sand bar *** investigating conventional seismic data,seismic inversion volumes,and well log data,multiple tidal-influenced delta front channels,beach sand packages have been mapped out in different reservoir sand intervals of the Pinghu Formation and Baoshi *** recognize four types of stratigraphic terminations:channel flank pinch-outs,axial pinch-outs of sand-fills,channel mouth sand bar pinch-outs,and onlap pinch-outs for the Baoshi *** the depositional facies and relatively low sand-shale ratio of the reservoir formations favor the occurrence of stratigraphic *** closure mechanism of all these plays are similar to the traditional structure plays in the area:fault blocks or fault-bounded rollover anticlines,except that one or more closing faults are replaced by these stratigraphic *** small-sized closures should exist but the relatively large ones are centered around a major intra-slope rise,raising the exploration potential in this maturely explored *** new exploration drilling campaign has so far tested the play of delta front channel facies,with three out of four wells commercially *** play concepts open up a novel approach to identify new traps in the study area and many other rift basins with similar settings in eastern China.

关键词： East China Sea Xihu Sag Stratigraphic play Pinghu Formation

In situ surface engineering enables high interface stability and rapid reaction kinetics for Ni-rich cathodes

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eScience 2023年第1期3卷 38-44页

作者： Wenshuai Guo Wu Wei huawei Zhu Yanjie Hu Hao jiang Chunzhong Li Shanghai Engineering Research Center of Hierarchical Nanomaterials School of Materials Science and EngineeringEast China University of Science and TechnologyShanghai 200237China Key Laboratory for Ultrafine Materials of Ministry of Education School of Chemical EngineeringEast China University of Science and TechnologyShanghai 200237China

Layered oxide cathodes with high Ni content promise high energy density and competitive cost for Li-ion batteries(LIBs).However,Ni-rich cathodes suffer from irreversible interface reconstruction and undesirable cracking with severe performance degradation upon long-term operation,especially at elevated ***,we demonstrate in situ surface engineering of Ni-rich cathodes to construct a dual ion/electron-conductive NiTiO 3 coating layer and Ti gradient doping(NC90–Ti@NTO)in *** dual-modification synergy helps to build a thin,robust cathode–electrolyte interface with rapid Li-ion transport and enhanced reaction kinetics,and effec-tively prevents unfavorable crystalline phase transformation during long-term cycling under harsh *** optimized NC90–Ti@NTO delivers a high reversible capacity of 221.0 mAh g^(-1) at 0.1C and 158.9 mAh g^(-1) at ***,it exhibits a capacity retention of 88.4%at 25?C after 500 cycles and 90.7%at 55?C after 300 cycles in a pouch-type full *** finding provides viable clues for stabilizing the lattice and interfacial chemistry of Ni-rich cathodes to achieve durable LIBs with high energy density.

关键词： Ni-rich cathode Surface engineering High energy density Interface stability Li-ion batteries

Novel heterozygous USH1C mutation impacts hair cell mechanotransduction and causes progressive hearing loss

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Science Bulletin 2024年第2期69卷 167-172页

作者： Yanyan Jia Gaogan Jia Luo Guo Nan Song Yu-Meng Wang Luoying jiang Yilai Shu Yan Chen Shujia Zhu huawei Li Wenyan Li ENT Institute and Otorhinolaryngology Department of Eye&ENT Hospital State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain ScienceFudan UniversityShanghai 200031China Institutes of Biomedical Sciences Fudan UniversityShanghai 200032China NHC Key Laboratory of Hearing Medicine(Fudan University) Shanghai 200031China The Institutes of Brain Science and the Collaborative Innovation Center for Brain Science Fudan UniversityShanghai 200032China Shanghai Center for Brain Science and Brain-Inspired Intelligence Technology Shanghai 201210China Institute of Neuroscience State Key Laboratory of NeuroscienceCAS Center for Excellence in Brain Science and Intelligence TechnologyChinese Academy of SciencesShanghai 200031China Department of Cardiology and Institute for Developmental and Regenerative Cardiovascular MedicineXinhua Hospital Affiliated to Shanghai Jiaotong University School of MedicineShanghai 200092China

Hearing loss is one of the most common sensory disorders worldwide,affecting approximately 466 million people,including 34 million children[1].Genetic mutations accounts for approximately 60%of inherited hearing loss cases[2,3].These genetic changes result in a wide variety of clinical manifestations,ranging from nonsyndromic hearing loss(NSHL)to over 400 syndromes involving hearing loss and from mild adult-onset hearing loss to profound congenital deafness,covering the entire spectrum of Mendelian inheritance.

关键词： mec hearing approximate

鼓泡流态化燃烧气固流态与NO_(x)浓度的关系规律

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青岛大学学报（工程技术版） 2022年第2期37卷 88-94页

作者：邓尚致姜华伟聂茂峰黄玉林张洪玮郭庆杰王翠苹青岛大学机电工程学院山东青岛266071 省部共建煤炭高效利用与绿色化工国家重点实验室(宁夏大学) 宁夏银川7500213 山东科技大学土木工程与建筑学院山东青岛266590

针对在流化床中密相区的气固流动行为与污染物NO_(x)之间关系规律和影响机制的问题,本文借助鼓泡流化床反应器,研究了准东煤和柏木在不同床内温度、流化风速和给料速率条件下燃烧时烟气中NO_(x)的浓度,并利用功率谱密度分析法分析了流... 详细信息

针对在流化床中密相区的气固流动行为与污染物NO_(x)之间关系规律和影响机制的问题,本文借助鼓泡流化床反应器,研究了准东煤和柏木在不同床内温度、流化风速和给料速率条件下燃烧时烟气中NO_(x)的浓度,并利用功率谱密度分析法分析了流化床内气固流态。结果表明,随着温度的升高,床内流化气体密度降低,使得床内截面气速增加,鼓泡流态化更加剧烈,促进了气固混合与接触,从而使烟气中NO_(x)含量显著增大。适当提高流化风速,有利于床层形成充分的鼓泡流态化,使燃料燃烧更加充分,但流化风速过大,也会导致烟气中NO_(x)排放浓度上升。通过降低给料速率,会导致床层高度降低,抑制鼓泡流态化的充分发展,减弱气固混合和接触的强度,产生还原性气氛,使得NO_(x)浓度降低。该研究对进一步优化循环流化床炉内气固流动状态,降低NO_(x)的排放具有重要意义。

关键词：鼓泡流化床气固流态化氮氧化物压力波动污染物排放

Optical synaptic devices with ultra-low power consumption for neuromorphic computing

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Light(Science & Applications) 2022年第12期11卷 3008-3017页

作者： Chenguang Zhu huawei Liu Wenqiang Wang Li Xiang Jie jiang Qin Shuai Xin Yang Tian Zhang Biyuan Zheng Hui Wang Dong Li Anlian Pan Key Laboratory for Micro-Nano Physics and Technology of Hunan Province State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Materials Science and EngineeringHunan University410082 ChangshaChina Hunan Institute of Optoelectronic Integration Hunan University410082 ChangshaChina School of Physics and Electronics Central South University410083 ChangshaChina

Brain-inspired neuromorphic computing,featured by parallel computing,is considered as one of the most energyefficient and time-saving architectures for massive data ***,photonic synapse,one of the key components,is still suffering high power consumption,potentially limiting its applications in artificial neural *** this study,we present a BP/CdS heterostructure-based artificial photonic synapse with ultra-low power *** device shows remarkable negative light response with maximum responsivity up to 4.1×10^(8)AW^(−1) at VD=0.5 V and light power intensity of 0.16μW cm^(−2)(1.78×10^(8)AW^(−1) on average),which further enables artificial synaptic applications with average power consumption as low as 4.78 fJ for each training process,representing the lowest among the reported ***,a fully-connected optoelectronic neural network(FONN)is simulated with maximum image recognition accuracy up to 94.1%.This study provides new concept towards the designing of energy-efficient artificial photonic synapse and shows great potential in high-performance neuromorphic vision systems.

关键词： artificial computing neural

Analysis on Profit Quality of Small and Medium-sized Agricultural Enterprises:A Case Study of YM Industrial Co.,Ltd in Guang'an City of Sichuan Province

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Asian Agricultural Research 2013年第1期5卷 83-86页

作者： Ling jiang huawei LUO School of Economics and Management Sichuan Agricultural University

For a long time, under the influence of system and environment and other factors, some small and medium-sized agricultural enterprises in China only seek growth of profit in quantity, but neglect the growth of profit in quality, leading to low profit quality. This study reasonably defines the concept of profit quality of small and medium-sized agricultural enterprises, and expounds general characteristics of high quality profit. On the basis of general factors influencing profit quality of enterprises, it builds indicator system for evaluating the profit quality of small and medium-sized agricultural enterprises. Also, it conducts an empirical analysis on profit quality of Chinese small and medium-sized enterprises with YM Industrial Co., Ltd in Guang'an City of Sichuan Province as an example.

关键词： Small and medium-sized agricultural enterprises An