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本科生全程导师制的价值意蕴及实践探索

北京科技大学学报（社会科学版） 2025年第1期41卷 32-38页

作者：赵萌北京科技大学北京100083

本科教育在人才培养工作中占据基础地位,如何推动本科教育理念和方式不断变革,谋求本科教育体制机制的创新发展是提升教育质量的关键所在。本科生全程导师制从学生多样化、个性化的需求出发,注重因材施教,逐渐成为提升人才培养质量的关... 详细信息

本科教育在人才培养工作中占据基础地位,如何推动本科教育理念和方式不断变革,谋求本科教育体制机制的创新发展是提升教育质量的关键所在。本科生全程导师制从学生多样化、个性化的需求出发,注重因材施教,逐渐成为提升人才培养质量的关键手段之一,并在教学实践中不断得到创新和优化。文章以北京科技大学近年来推行的本科生全程导师制为例,针对8921名本科生进行在校生满意度调查,分析得出该导师制在思想引导、学术指导以及创业就业等方面充分发挥了教师的积极作用,获得了广大学生的高度认可,由此探索构建符合新时代人才培养需求的本科人才培养新模式。

关键词：本科生全程导师制人才培养学生满意度

REFINEMENTS OF THE NORM OF TWO ORTHOGONAL PROJECTIONS

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Acta Mathematica Scientia 2024年第4期44卷 1229-1243页

作者： Xiaohui LI meiqi LIU Chunyuan DENG School of Mathematics Science South China Normal UniversityGuangzhou 510631China

In this paper,some refinements of norm equalities and inequalities of combination of two orthogonal projections are *** use certain norm inequalities for positive contraction operator to establish norm inequalities for combination of orthogonal projections on a Hilbert ***,we give necessary and sufficient conditions under which the norm of the above combination of o`rthogonal projections attains its optimal value.

关键词： norm orthogonal projection positive operator spectral block operator valued matrix

Charge trap-based carbon nanotube transistor for synaptic function mimicking

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Nano Research 2021年第11期14卷 4258-4263页

作者： Jie Zhao Fang Liu Qi Huang Tongkang Lu meiqi Xi Lianmao Peng Xuelei Liang Center for Carbon-Based Electronics Peking UniversityBeijing100871China Key Laboratory for the Physics and Chemistry of Nanodevices Department of ElectronicsPeking UniversityBeijing100871China Shanxi Institute for Carbon-Based Thin Film Electronics Peking University(SICTFE-PKU)Taiyuan030012China Taiyuan Laboratory for Carbon-Based Thin Film Electronics Taiyuan030012China

Brain-inspired neuromorphic computing is expected for breaking through the bottleneck of the computer of conventional von Neumann architecture. To this end, the first step is to mimic functions of biological neurons and synapses by electronic devices. In this paper, synaptic transistors were fabricated by using carbon nanotube (CNT) thin films and interface charge trapping effects were confirmed to dominate the weight update of the synaptic transistors. Large synaptic weight update was realized due to the high sensitivity of the CNTs to the trapped charges in vicinity. Basic synaptic functions including inhibitory post-synaptic current (IPSC), excitatory post-synaptic current (EPSC), spike-timing-dependent plasticity (STDP), and paired-pulse facilitation (PPF) were mimicked. Large dynamic range of STDP (> 2,180) and low power consumption per spike (∼ 0.7 pJ) were achieved. By taking advantage of the long retention time of the trapped charges and uniform device-to-device performance, long-term image memory behavior of neural network was successfully imitated in a CNT synaptic transistor array.

关键词： carbon nanotube charge trap synaptic transistor long-term memory

Stabilizing Na_(3)SbS_(4)/Na interface by rational design via Cl doping and aqueous processing

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Journal of Materials Science & Technology 2021年第11期70卷 168-175页

作者： Haonan Cao meiqi Yu Long Zhang Zhaoxing Zhang Xinlin Yan Peng Li Chuang Yu Clean Nano Energy Center State Key Laboratory of Metastable Materials Science and TechnologyYanshan UniversityQinhuangdaoHebei066004China School of Environmental and Chemical Engineering Yanshan UniversityQinhuangdaoHebei066004China Institute of Solid State Physics Vienna University of TechnologyWiedner Hauptstr.8-101040ViennaAustria Department of Mechanical and Materials Engineering University of Western Ontario1151 Richmond StLondonOntarioN6A 3K7Canada

Solution-synthesis method is attractive for solid electrolytes because it is a facile and scalable process to be used to permeate electrodes and to construct a thin electrolyte coating layer on active *** this work,we report Cl-doped Na_(3)SbS_(4) prepared via aqueous-solution *** decent ionic conductivity,the aqueous-solution approached electrolyte demonstrates an improved interfacial stability toward Na metal compared to the solid-state sintered one because of the residual hydrate,nanosized microstructure,and Cl ***-solid-state batteries using the solution-prepared electrolytes have enhanced cycling performance,though the performance still needs to be further improved.

关键词： Interfacial stability Sulfides Solid electrolytes Chemical synthesis All-solid-state sodium battery

Is it possible to foot reflexology for infants with sensorineural hearing loss?

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World Journal of Clinical Cases 2025年第2期13卷 1-4页

作者： Min Ai Hang-Hang Zhang Jun-Bang Feng Chuan-Ming Li Wen-Jing Wang meng-Die Hu Department of Anesthesiology Nanan District People's Hospital of ChongqingChongqing 400060China Department of Breast and Thyroid Surgery Chongqing Bishan District Maternal and Child Health Care HospitalChongqing 402760China Department of Medical Imaging Chongqing University Central HospitalChongqing 400014China

Foot reflexology is a non-invasive and safe complementary therapy that works by massaging the reflex zones of the feet and exerts systemic or whole-body regulation through meridian nerve *** therapy is commonly used in the treatment of various conditions such as autism and Parkinson's ***,there is limited reporting on the use of foot reflexology therapy for infants with sensorineural hearing loss(SNHL).Currently,there is no definitive conclusion on how foot reflexology therapy can influence *** editorial holds some guiding significance regarding this clinical *** aim is to present physiological evidence of how foot reflexology therapy can impact infants with SNHL,thereby enhancing clinician’s awareness of foot reflexology in treating infants with SNHL.

关键词： Foot reflexology Sensorineural Hearing Loss Future perspectives Limitations Neural conduction

Exploring the spatiotemporal heterogeneity of vegetation changes in subtropical humid karst region under CO2 fertilization

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Journal of Geographical Sciences 2025年第1期 65-87页

作者： CHEN meng ZHOU Qiuwen PENG Dawei YAN Weihong School of Geography and Environmental Science Guizhou Normal University Huanjiang Observation and Research Station for Karst Ecosystem Guangxi Key Laboratory of Karst Ecological Processes and Services Institute of Subtropical Agriculture CAS University of Chinese Academy of Sciences Faculty of Geographical Science Beijing Normal University Forestry Bureau of Shibing County

Terrestrial ecosystems heavily depend on vegetation,which responds to carbon dioxide （CO2） fertilization in hot and humid *** subtropical humid karst region is a hot and humid region;whether and to what extent CO2fertilization affects vegetation changes in such regions remains *** this study,we investigated the degree to which CO2fertilization influences vegetation changes,along with their spatial and temporal differences,in the subtropical humid karst region using time-lag effect analysis,a random forest model,and multiple regression *** showed that CO2fertilization plays an important role in vegetation changes,exhibiting clear spatial variations across different geomorphological zones,with its degree of influence ranging mainly between 11%and 25%.The highest contribution of CO2fertilization was observed in the karst basin and non-karstic region,whereas the lowest contribution was found in the karst plateau *** studies have primarily attributed vegetation changes in subtropical humid karst region to ecological engineering,leading to an overestimation of its contribution to these *** findings of this study enhance the understanding of the mechanism of vegetation changes in humid karst region and provide theoretical and practical insights for ecological and environmental protection in these regions.

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Alleviatory effect of isoquercetin on benign prostatic hyperplasia via IGF-1/PI3K/Akt/mTOR pathway

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Food Science and Human Wellness 2024年第3期13卷 1698-1710页

作者： Young-Jin Choi meiqi Fan Nishala Erandi Wedamulla Yujiao Tang Eun-Kyung Kim Department of Food Science and Nutrition Dong-A UniversityBusan 49315Republic of Korea Center for Silver-targeted Biomaterials Brain Busan 21 Plus programDong-A UniversityBusan 49315Republic of Korea Department of Health Sciences the Graduate School of Dong-A UniversityBusan 49315Republic of Korea Division of Food Bioscience College of Biomedical and Health SciencesKonkuk UniversityChungju 27478Republic of Korea Department of Export Agriculture Faculty of Animal Science and Export AgricultureUva Wellassa UniversityBadulla 90000Sri Lanka School of Bio-Science and Food Engineering Changchun University of Science and TechnologyChangchun 130600China Nutritional Education Major Graduate School of EducationDong-A UniversityBusan 49315Republic of Korea Nutrinomics Lab.Co. Ltd.Busan 49315Republic of Korea

We evaluated the effect of isoquercetin(quercetin-O-3-glucoside-quercetin,IQ)as a functional component of Abeliophyllum disistichum Nakai ethanol extract(ADLE)on prostate cell proliferation and apoptosis and its effects on the IGF-1/PI3K/Akt/mTOR pathway in benign prostatic hyperplasia(BPH).Metabolites in ADLE were analyzed using UHPLC-qTOF-MS and *** was orally administered(1 or 10 mg/kg)to a testosterone propionate-induced BPH rat model,and its effects on the prostate weight were *** effect of IQ on androgen receptor(AR)signaling was analyzed in LNCaP *** IGF-1 and IQ affect the IGF-1/PI3K/Akt/mTOR pathway in BPH-1 cells was also *** metabolites in ADLE were identified and quantified,which confirmed that ADLE contained abundant IQ(20.88 mg/g).IQ significantly reduced the prostate size in a concentration-dependent manner in a BPH rat model,and significantly decreased the expression of AR signaling factors in the rat prostate tissue and LNCaP cells in a concentration-dependent *** also inhibited the PI3K/AKT/mTOR pathway activated by IGF-1 treatment in BPH-1 *** BPH-1 cells,IQ led to G0/G1 arrest and suppressed the expression of proliferation factors while inducing ***,IQ shows potential for use as a pharmaceutical and nutraceutical for BPH.

关键词： Isoquercetin Benign prostatic hyperplasia Androgen receptor signaling PI3K/Akt/mtor pathway

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基于图像处理技术的棚室番茄果实识别

农机化研究 2025年第1期47卷 189-193页

作者：陈翠琴孟清成都信息工程大学成都610225 海南职业技术学院工业与信息学院海口570216

我国番茄的产量居世界前列,种植的主要方式为棚室种植,大多采用人工采摘,成本高、效率低,不利于种植产业的发展。为此,提出了一种基于A-ENet模型的图像处理技术,用于棚室番茄果实的识别。A-ENet模型在EfficientNet运行时引入注意力机制... 详细信息

我国番茄的产量居世界前列,种植的主要方式为棚室种植,大多采用人工采摘,成本高、效率低,不利于种植产业的发展。为此,提出了一种基于A-ENet模型的图像处理技术,用于棚室番茄果实的识别。A-ENet模型在EfficientNet运行时引入注意力机制,用于优化深度网络运算结果。EfficientNet通过调整、完善网络的宽度、深度等网络参数提升网络的识别准确率,同时在网络提取输入信号特征时引入注意力机制用于捕捉输入信号特征的权重信息,主动忽略环境因素对目标信号的干扰。A-ENet模型能够解决由于识别目标之间的细微差异产生的识别错误的问题,且能够减少随机环境因素对识别过程的干扰,提高识别成功率,对棚室番茄果实识别问题起到积极的影响作用。实验结果表明:所提出的基于图像处理技术的A-ENet模型能够构建出效率更高、鲁棒性更强的目标识别系统。

关键词：番茄果实 EfficientNet 注意力机制图像处理技术深度网络

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Research on hybrid multi-terminal high-voltage DC technology for offshore wind farm integration

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Journal of Modern Power Systems and Clean Energy 2013年第1期1卷 34-41页

作者： Peng ZHAN Chenghao LI Jinyu WEN Yu HUA meiqi YAO Naihu LI State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and TechnologyWuhan 430074Chin Grid Technology Center(China)Co.Ltd. Shanghai 201114China

Multi-terminal high-voltage DC(MTDC)technology is a promising way to transmit large amounts of offshore wind power to the main *** paper proposes a hybrid MTDC scheme to integrate several offshore wind farms into the onshore power grids at different locations.A hybrid four-terminal HVDC system comprising two onshore line commutated converters(LCCs)and two voltage source converters(VSCs)connecting an offshore wind farm is constructed in PSCAD/EMTDC.A coordination control scheme based on the VSCs’AC voltage control and the LCCs’DC voltage droop control is designed to ensure smooth system operation and proper power sharing between onshore AC *** operational characteristics of the system are *** addition,a black start-up method without any auxiliary power supply for the VSCs is *** transmission scheme is tested through simulations under various conditions,including start-up,wind speed variation,and the disconnection of one VSC or of one LCC.

关键词： Hybrid multi-terminal HVDC Offshore wind farm Droop control Voltage source converter Line commutated converter