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高校教师教学能力评价体系构建的研究

湖北工程学院学报 2024年第3期44卷 114-120页

作者：童俊王凯魏宇瞳茅台学院工商管理系贵州遵义564500 湖北工程学院经济与管理学院湖北孝感432000 江汉大学商学院湖北武汉430000

高校教师的教学能力对教师自身的专业发展和人才的培养有着深远的影响。本文采用文献分析法和层次分析法,对教学能力和教学能力评价的界定进行分析,探究了高校教师教学能力评价体系存在的问题,针对教学能力评价指标,构建了高校教师教学... 详细信息

高校教师的教学能力对教师自身的专业发展和人才的培养有着深远的影响。本文采用文献分析法和层次分析法,对教学能力和教学能力评价的界定进行分析,探究了高校教师教学能力评价体系存在的问题,针对教学能力评价指标,构建了高校教师教学能力评价指标体系,其中包括思想道德、专业理论知识、教学实践能力、教研能力、教学管理能力5个一级指标和11个二级指标,以促进高校教师教学能力的提高。

关键词：教学能力教学能力评价评价指标

The diversity and evolution of retroviruses:Perspectives from viral“fossils”

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Virologica Sinica 2022年第1期37卷 11-18页

作者： Jialu Zheng yutong wei Guan-Zhu Han Jiangsu Key Laboratory for Microbes and Functional Genomics College of Life SciencesNanjing Normal UniversityNanjing210023China

Retroviruses exclusively infect vertebrates,causing a variety of *** replication of retroviruses requires reverse transcription and integration into host *** infecting germline cells,retroviruses become inherited vertically,forming endogenous retroviruses(ERVs).ERVs document past viral infections,providing molecular fossils for studying the evolutionary history of *** this review,we summarize the recent advances in understanding the diversity and evolution of retroviruses from the perspectives of viral fossils,and discuss the effects of ERVs on the evolution of host biology.

关键词： Retroviruses Endogenous retroviruses(ERVs) Origin and evolution Diversity

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基于重用距离的访存指令优化

小型微型计算机系统 2024年第11期45卷 2784-2789页

作者：魏雨桐顾乃杰黄章进苏俊杰齐东升中国科学技术大学计算机科学与技术学院合肥230027

随着机器学习、推荐系统和社交网络等数据驱动类技术的发展,数据正在以流的形式呈现.传统的缓存替换算法无法有效适应应用程序的流式访问行为,导致数据流程序带来了大量的缓存未命中与严重的缓存污染问题.本文依据数据流程序变化带来的... 详细信息

随着机器学习、推荐系统和社交网络等数据驱动类技术的发展,数据正在以流的形式呈现.传统的缓存替换算法无法有效适应应用程序的流式访问行为,导致数据流程序带来了大量的缓存未命中与严重的缓存污染问题.本文依据数据流程序变化带来的新的局部性优化挑战,提出了一种基于重用距离和非时态访存指令的优化方法RDNT.该方法首先筛选内存访问指令,然后计算重用距离,最后用非时态内存访问指令替换重用距离过大的常规内存访问指令.在SPEC CPU 2017测试集的实验结果表明,RDNT能够有效提高程序性能,与常规访存方式相比产生了8%的加速比,降低了程序的运行时间.

关键词： LLVM编译器缓存污染内存访问指令编译器优化

Adaptive deep reinforcement learning for non-stationary environments

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Science China(Information Sciences) 2022年第10期65卷 225-241页

作者： Jin ZHU yutong wei Yu KANG Xiaofeng JIANG Geir E.DULLERUD Department of Automation University of Science and Technology of China Department of Mechanical Science and Engineering University of Illinois at Urbana-Champaign

Deep reinforcement learning(DRL) is currently used to solve Markov decision process problems for which the environment is typically assumed to be stationary. In this paper, we propose an adaptive DRL method for non-stationary environments. First, we introduce model uncertainty and propose the self-adjusting deep Q-learning algorithm, which can achieve the rebalance of exploration and exploitation automatically as the environment changes. Second, we propose a feasible criterion to judge the appropriateness of parameter setting of deep Q-networks and minimize the misjudgment probability based on the large deviation principle(LDP). The effectiveness of the proposed adaptive DRL method is illustrated in terms of an advanced persistent threat(APT) attack simulation game. Experimental results show that compared with the classic deep Q-learning algorithms in non-stationary and stationary environments, the adaptive DRL method improves performance by at least 14.28% and 30.56%, respectively.

关键词： adaptive DRL non-stationary environment model uncertainty exploration and exploitation problem parameter setting LDP

Microfluidic magnetic detection system combined with a DNA framework-mediated immune-sandwich assay for rapid and sensitive detection of tumor-derived exosomes

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Microsystems & Nanoengineering 2023年第6期9卷 195-204页

作者： Qiuling Qian yutong wei Yi Xu Mengmeng Zheng Chenguang Wang Shulin Zhang Xiaoming Xie Chaofeng Ye Xianqiang Mi National Key Laboratory of Materials for Integrated Circuits Shanghai Institute of Microsystem and information TechnologyChinese Academy of Sciences865 Changning RoadShanghai 200050China Shanghai Advanced Research Institute Chinese Academy of SciencesShanghai 201210China University of Chinese Academy of Sciences Bejing 100049China school of Information Science and Technology Shanghai Tech UniversityShanghai 201210China School of Life Sciences Shanghai UniversityShanghai 20044China School of Physics and Optoelectronic Engineering Hangzhou Institute for Advanced Study University of Chinese Academy of SciencesChinese Academy of SciencesHangzhou 310024China

Tumor-derived circulating exosomes(TDEs)are being pursued as informative and noninvasive ***,quantitatively detecting TDEs is still ***,we constructed a DNA tetrahedral-structured probe(TSP)-mediated microfluidic magnetic detection system(μFMS)to provide a rapid and sensitive platform for analyzing ***63 aptamer-modified Fe_(3)O_(4)magnetic nanoparticles(MNPs)were constructed to form magnetic nano-report probes(MNRs).The microfluidic chips were fabricated from glass functionalized with DNA TSP-modified aldehyde groups and a PDMS layer designed with serpentine *** induction coil-based magnetic detector was used to measure the magnetic *** linear dynamic range of theμFMS system for TDE assays was 1.98×10^(3)-1.98×10^(7)particles/mL with a limit of detection of 1.98×10^(3)particles/mL in *** was no significant difference in TDE detection between the simulated serum and PBS,which indicated the feasibility of the constructedμFMS system for TDE analysis in complex biological *** terms of cost,reaction time and operation procedure,thisμFMS has the potential to be developed as a clinical point-of-care testing tool for cancer diagnosis and therapeutics.

关键词： fluid diagnosis magnetic

Enhancement of–OH content on mechanical properties of antiperovskite solid electrolytes

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Nano Research 2024年第7期17卷 6139-6146页

作者： Zunqiu Xiao Huaying Wang Ningyuan Cai yutong Li Kejia Xiang wei wei Tao Ye Zhongtai Zhang Shitong Wang Zilong Tang State Key Lab of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China College of New Energy Advanced Chemical Engineering and Energy Materials Research CenterChina University of Petroleum(East China)Qingdao 266580China Department of Nuclear Science and Engineering Massachusetts Institute of TechnologyCambridgeMA 02139USA

All-solid-state batteries,renowned for their enhanced safety and high energy density,have garnered broad *** solid electrolytes are highly anticipated for their balanced ***,their high Young’s modulus and inadaptability to volume change during cycling lead to poor contact and eventual battery *** this work,Young’s modulus of Li_(1+x)(OH)_(x)Cl samples is lowered to a level comparable to that of sulfide by regulating the–OH *** the–OH content increases,Young’s modulus of Li_(1+x)(OH)_(x)Cl samples decreases *** may be due to the local aggregation of–OH groups,forming cavities similar to LiOH structure,which reduces the bonding of the *** the premise of high Li-ion conductivity and electrochemical stability,the lowered Young’s modulus improves the contact between the solid electrolyte and the electrodes,forming a strong and stable interfacial layer,thereby improving interfacial and cycling *** symmetrical lithium metal cell shows excellent cycle performance of 600 h,and the assembled LiFePO_(4)|Li_(2.4)(OH)1.4Cl|Li cell shows significantly enhanced cycling endurance with 80%capacity retention after 150 *** work not only emphasizes the crucial importance of Young’s modulus in improving interface issues but also offers innovative approaches to advance the mechanical properties of solid electrolytes.

关键词： mechanical properties -OH content anti-perovskite solid electrolytes Li-ion batteries

Research on Indoor Positioning Technology of WSN based on T-RL Partition Path Model

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Journal of Communications and Information Networks 2024年第3期9卷 219-232页

作者： wei Wang Xinlin Wang yutong Liu Yulin Ren Maozhen Li Asoke K.Nandi School of Information and Communication Engineering North University of ChinaTaiyuan 030051China Department of Electronic and Computer Engineering Brunel University LondonUxbridge UB83PHUK

To address the issues of unstable received signal strength indicator(RSSI)and low indoor positioning accuracy caused by walls and obstacles,the propagation conditions of the wireless communication system are categorized into two distinct environments:line-of-sight(LOS)and non-line-of-sight(NLOS).In the LOS environment,the traditional logarithmic path loss model is *** the NLOS environment,the impact of walls on signal transmission is considered,leading to the development of a multi-wall path loss model based on the T-RL method,with improvements made to the key parameter,the Fresnel coefficient *** breakpoint value d=2.3 m in the partitioned model is determined,and the positional coordinates of the unknown nodes are calculated using the trilateration *** results indicate that the T-RL based multi-wall model improves localization accuracy by 47%in NLOS environments compared to the traditional logarithmic path loss *** average localization error using the T-RL partitioned path loss model is 0.7021 m,representing a 55.9%improvement over the logarithmic path loss model and a 16.8%enhancement over the T-RL attenuation multi-wall model,thereby providing better environmental adaptability.

关键词： WSN indoor positioning loss model reflection transmission RSSI

Enhanced electrical and mechanical properties of Bi_(2)Te_(3)-based thermoelectric thick films enabled by a practical dynamic regulation strategy

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Journal of Materiomics 2024年第2期10卷 480-489页

作者： Jie Zhou wei Zhu Qingqing Zhang Guangyu Han yutong Liu Zhanpeng Guo Siming Guo Yue Huang Yuan Deng School of Materials Science and Engineering Beihang UniversityBeijing 100191China Research Institute for Frontier Science Beihang UniversityBeijing 100191China Key Laboratory of Intelligent Sensing Materials and Chip Integration Technology of Zhejiang Province Hangzhou Innovation Institute of Beihang UniversityHangzhou310051China

The application of high-density and high-performance micro thermoelectric devices is still in its infancy,mainly restricted by the low performance of Bi_(2)Te_(3)-based thick film as well as the limited device *** this study,we proposed a dynamic regulation strategy to simultaneously strengthen the thermoelectric and mechanical properties for n-type Bi_(2)Te_(3)-based thick *** effects of growth temperature and time on thermoelectric properties have been firstly *** the thermoelectric properties exhibit consistent degradation with increasing thickness at static growth temperature,an effective rising temperature method is introduced to dynamically regulate the nucleation rate and growing diffusion ***,the grain refinement with compact texture structure leads to a relatively large carrier mobility(77.1 cm^(2)·V^(-1)·s^(-1))and appropriate concentration(5.25×10^(19)cm^(-3))as well as further 12%improvement of power factor with an average value up to 12.0 mW·cm^(-1)·K^(-2)over a wide temperature ranging from 313 K to 453 ***,significant enhancement of mechanical property is also achieved with high elastic modules(56.03 GPa),hardness(0.63 GPa)and large energy dissipation capacity to prevent *** study provides a practical solution with dynamic temperature control to fabricate high-performance Bi_(2)Te_(3) thick films with enhanced mechanical property and pro-cessing feasibility for micro thermoelectric devices.

关键词： Bi_(2)Te_(3)material Thick film Magnetron sputter Dynamic temperature Thermoelectric property Mechanical property

Direct Analysis of Whole Blood by a Disposable Monolithic Column Mass Spectrometry Analysis Kit

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Chinese Journal of Chemistry 2024年第10期42卷 1073-1078页

作者： Wenxin Wang Jin Han yutong Zheng Haijie Wang Chengbiao Zhu Yongyi Li Yuqi Feng Zhenwei wei Xiangyu Wang College of Chemistry and Molecular Science Wuhan UniversityWuhanHubei 430072China School of Public Health Wuhan UniversityWuhanHubei 430072China Schoolof Bioengineering and Health Wuhan Textile UniversityWuhanHubei 430200China

A monolithic column-based mass spectrometry(MS)analysis kit was prepared for whole blood analysis with *** kit is disposable and can be used for purification,storage,transportation and direct analysis of whole *** kit mainly consists of a capillary for quantitative microsampling,a cation exchange monolithic column for purification and storage,and a syringe for loading *** kit is very friendly to various users that one can easily siphon the blood in the kit followed by rapid *** established a quantitative method using the kit with a limit detection as low as 0.33 nmol/L,and achieved more than five orders of magnitude enhancement in sensitivity compared to direct nanoelectrospray ionization MS *** column can avoid analyte exposure to environment,which helps the storage of the sample for laboratory *** relative standard deviation of immediate blood analysis and storage blood analysis within 10 d was less than 10%.This method has been successfully applied to the quantitative analysis of procainamide hydrochloride in 2μL rat *** results indicate that this disposable kit does have the potential to achieve highly sensitive quantitative MS analysis in biological samples,which is expected to become a cost-effective and powerful tool for in vitro diagnostics.

关键词： Clinical Ms Whole blood analysis Porous polymers Matrix isolation Trace analysis