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N:ZnO/MoS_(2)-heterostructured flexible synaptic devices enabling optoelectronic co-modulation for robust artificial visual systems

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Nano Research 2024年第3期17卷 1902-1912页

作者： Lei Xu wenxiao wang Yang Li Yonghui Lin Wenjing Yue Kai Qian Qinglei Guo Jeonghyun Kim Guozhen Shen School of Information Science and Engineering University of JinanJinan 250022China School of Microelectronics Shandong UniversityJinan 250101China Department of Electronic Convergence Engineering Kwangwoon UniversitySeoul 01897Republic of Korea School of Integrated Circuits and Electronics Beijing Institute of TechnologyBeijing 100081China

With the merits of non-contact,highly efficient,and parallel computing,optoelectronic synaptic devices combining sensing and memory in a single unit are promising for constructing neuromorphic computing and artificial visual *** on this,a N:ZnO/MoS_(2)-heterostructured flexible optoelectronic synaptic device is developed in this work,and its capability in mimicking the synaptic behaviors is systemically investigated under the electrical and light *** synaptic functions,including synaptic plasticity,long-term/short-term memory,and learning-forgetting-relearning property,have been achieved in this synaptic ***,an artificial visual memory system integrating sense and memory is emulated with the device array,and the visual memory behavior can be regulated by varying the light ***,the optoelectronic co-modulation behavior is verified by applying mixed electric and light signals to the *** detail,a transient recovery property is discovered when the electric signals are applied in synergy during the decay of the light response,of which property facilitates the development of robust artificial visual ***,by superimposing electrical signals during the light response process,a differentiated response of the array is achieved,which can be used as a proof of concept for the color perception of the artificial visual system.

关键词： flexible synaptic device synaptic plasticity optoelectronic synapse robust visual memory optoelectronic co-modulation artificial visual system

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Advances in flexible sensors for intelligent perception system enhanced by artificial intelligence

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InfoMat 2023年第5期5卷 55-110页

作者： Hongsen Niu Feifei Yin Eun-Seong Kim wenxiao wang Do-Young Yoon Cong wang Junge Liang Yang Li Nam-Young Kim RFIC Centre Kwangwoon UniversitySeoulRepublic of Korea Department of Electronics Engineering Kwangwoon UniversitySeoulRepublic of Korea NDAC Centre Kwangwoon UniversitySeoulRepublic of Korea Department of Chemical Engineering Kwangwoon UniversitySeoulRepublic of Korea School of Electronics and Information Engineering Harbin Institute of TechnologyHarbinthe People's Republic of China Department of Electronic Engineering Jiangnan UniversityWuxithe People's Republic of China School of Information Science and Engineering University of JinanJinanthe People's Republic of China

Intelligent perception means that with the assistance of artificial intelligence(AI)-motivated brain,flexible sensors achieve the ability of memory,learning,judgment,and reasoning about external information like the human *** to the superiority of machine learning(ML)algorithms in data processing and intelligent recognition,intelligent perception systems possess the ability to match or even surpass human perception ***,the built-in flexible sensors in these systems need to work on dynamic and irregular surfaces,inevitably affecting the precision and fidelity of the acquired *** recent years,the strategy of introducing the developed functional materials and innovative structures into flexible sensors has made some progress toward the above challenges,and with the blessing of ML algorithms,accurate perception and reasoning in various scenarios have been ***,the most representative functional materials and innovative structures for constructing flexible sensors are comprehensively reviewed,the research progress of intelligent perception systems based on flexible sensors and ML algorithms is further summarized,and the intersection of the two is expected to unlock new opportunities for next-stage AI development.

关键词： flexible sensor intelligent perception artificial intelligence machine learning

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Simulation and Experimental Study on Spray Characteristics of Gas-Assisted Urea Spray Gun

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World Journal of Engineering and Technology 2019年第3期7卷 396-407页

作者： Zhifu Zhu Peng Chen Sheng wang Jianhua Gui wenxiao wang College of Physics Qingdao University Qingdao China

In this paper, the internal flow field and external spray characteristics of the spray gun were simulated and analyzed by establishing a coupling model of the gas-liquid two-phase flow of the spray gun. The spray particle size and cone angle under different gas path pressures were mainly studied. The calculation results showed that the spray particle size distribution had a large span, but the overall spray particle size was small. The liquid flow and the air pressure had a little influence on the spray cone angle. The spray SMD was tested by a three-dimensional particle dynamic analyzer (PDA), and the spray cone angle was photographed with a high-speed camera. The test data was basically consistent with the simulation results. The experimental results showed that the model can accurately simulate the internal flow field of the spray gun and the atomization process of urea. It can be used to analyze the characteristics of urea spray and provide a theoretical basis for the optimal design of urea spray gun.

关键词： Urea Spray Gun Spray Characteristic SMD CFD Simulation Experiment

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乾隆中叶江西漕运屯租改革及其影响

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清史研究 2021年第5期127卷 99-112页

作者：王文箫中国政法大学法学院北京100088

乾隆前期,清廷注意到各省漕运屯田的失额问题,在强制回赎政策失灵的情况下另寻他法,于乾隆二十三年率先在江西进行改革,通过大幅提高屯租,由官府派拨旗丁济运,将屯租变为专门用以济运的新税种。江西奏准章程因效果明显,于乾隆三十七年... 详细信息

乾隆前期,清廷注意到各省漕运屯田的失额问题,在强制回赎政策失灵的情况下另寻他法,于乾隆二十三年率先在江西进行改革,通过大幅提高屯租,由官府派拨旗丁济运,将屯租变为专门用以济运的新税种。江西奏准章程因效果明显,于乾隆三十七年推广至有漕各省,成为解决漕弊的主要手段。改革以后,各省均采取屯租加征、官征官解的办法取代强制回赎政策,反映了清朝财政体系的扩张。旗丁以直接获取定额津银的方式,取代分田自耕或招佃收租的传统,松动了与漕运屯田的联系。

关键词：清代漕运卫所屯田旗丁屯租

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Robust H∞ Filtering for Discrete-time Markovian Jump Systems with Time-varying Delay and Parametric Uncertainties

Robust H∞ Filtering for Discrete-time Markovian Jump System...

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第三十九届中国控制会议

作者： wenxiao wang Shulan Kong Guozeng Cui School of Mathematics Science Qufu Normal University School of Electronic and Information Engineering Suzhou University of Science and Technology

In this paper, the problem of robust H∞ filtering for discrete-time Markovian jump systems with time-varying delay and norm-bounded parametric uncertainties is investigated. The parameter uncertainties in the systems satisfy a norm-bounded conditions, and the time-varying delay is unknown with given lower and upper bounds. A filter is designed in the presence of timevarying delay and parameter uncertainties. The filtering error system is proved to be stochastic bounded and satisfy correlative H∞ performance. Sufficient criteria are derived via constructing a novel delay-dependent Lyapunov-Krasonskii functional with convex hull and solving linear matrix inequalities（LM I）, which guarantee the filtering error system to be stochastic finite-time boundedness in H∞ sense.

关键词： H∞ filtering Nonhomogeneous Markovian jump systems Time-varying delay Uncertain systems

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晚清宗室禁烟法令的沿革与实践

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历史档案 2024年第2期 116-126页

作者：王文箫中国政法大学法学院 100088

本文利用相关档案史料,试图勾勒出晚清宗室禁烟法令的沿革及实践图景。道光十九年,清廷制定《查禁鸦片章程三十九条》,宗室与民人同处严刑之下。咸丰朝虽开禁鸦片,但对宗室仍延续严禁政策,直至同治初年改定新例。庚子之后,受政治革新、... 详细信息

本文利用相关档案史料,试图勾勒出晚清宗室禁烟法令的沿革及实践图景。道光十九年,清廷制定《查禁鸦片章程三十九条》,宗室与民人同处严刑之下。咸丰朝虽开禁鸦片,但对宗室仍延续严禁政策,直至同治初年改定新例。庚子之后,受政治革新、法律改制及禁烟新政等多方面影响,清廷于宣统三年颁布《宗室觉罗禁烟办法》,以近代法律的形式确定了较为平允的惩戒措施,但惜时已晚。晚清对宗室禁烟的管控并非单纯的法律问题,受清帝个人意志、外部环境及现实政治等多种因素的影响,呈现出阶段化的表现。而宗室无法废除的法律特权,则始终制约着禁烟法令的实际成效。

关键词：晚清宗室鸦片禁烟

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Tailoring Classical Conditioning Behavior in TiO_(2) Nanowires:ZnO QDs-Based Optoelectronic Memristors for Neuromorphic Hardware

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Nano-Micro Letters 2024年第7期16卷 265-280页

作者： wenxiao wang Yaqi wang Feifei Yin Hongsen Niu Young-Kee Shin Yang Li Eun-Seong Kim Nam-Young Kim School of Information Science and Engineering University of JinanJinan 250022People’s Republic of China RFIC Centre NDAC CentreKwangwoon UniversityNowon-guSeoul 139-701South Korea Department of Electronics Engineering Kwangwoon UniversityNowon-GuSeoul 139-701South Korea School of Microelectronics Shandong UniversityJinan 250101People’s Republic of China Department of Molecular Medicine and Biopharmaceutical Sciences Seoul National UniversitySeoul 08826South Korea

Neuromorphic hardware equipped with associative learn-ing capabilities presents fascinating applications in the next generation of artificial ***,research into synaptic devices exhibiting complex associative learning behaviors is still ***,an optoelec-tronic memristor based on Ag/TiO_(2) Nanowires:ZnO Quantum dots/FTO was proposed and constructed to emulate the biological associative learning *** implementation of synaptic behaviors,including long and short-term plasticity,and learning-forgetting-relearning behaviors,were achieved in the device through the application of light and electrical *** the optoelectronic co-modulated characteristics,a simulation of neuromorphic computing was conducted,resulting in a handwriting digit recognition accuracy of 88.9%.Furthermore,a 3×7 memristor array was constructed,confirming its application in artificial visual *** importantly,complex biological associative learning behaviors were emulated by mapping the light and electrical stimuli into conditioned and unconditioned stimuli,*** training through associative pairs,reflexes could be triggered solely using light ***-sively,under specific optoelectronic signal applications,the four features of classical conditioning,namely acquisition,extinction,recovery,and generalization,were elegantly *** work provides an optoelectronic memristor with associative behavior capabilities,offering a pathway for advancing brain-machine interfaces,autonomous robots,and machine self-learning in the future.

关键词： Artificial intelligence Classical conditioning Neuromorphic computing Artificial visual memory Optoelectronic memristors ZnO Quantum dots

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A Prediction Method of Trend-Type Capacity Index Based on Recurrent Neural Network

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Journal of Quantum Computing 2021年第1期3卷 25-33页

作者： wenxiao wang Xiaoyu Li Yin Ding Feizhou Wu Shan Yang School of Information and Software Engineering University of Electronic Science and Technology of ChinaChengduChina SI-TECH Information Technology Company Limited BeijingChina Department of Chemistry Physics and Atmospheric SciencesJackson State UniversityJacksonUSA

Due to the increase in the types of business and equipment in telecommunications companies,the performance index data collected in the operation and maintenance process varies *** diversity of index data makes it very difficult to perform high-precision capacity *** order to improve the forecasting efficiency of related indexes,this paper designs a classification method of capacity index data,which divides the capacity index data into trend type,periodic type and irregular *** for the prediction of trend data,it proposes a capacity index prediction model based on Recurrent Neural Network(RNN),denoted as *** model includes a basic RNN,two Long Short-Term Memory(LSTM)networks and two Fully Connected *** experimental results show that,compared with the traditional Holt-Winters,Autoregressive Integrated Moving Average(ARIMA)and Back Propagation(BP)neural network prediction model,the mean square error(MSE)of the proposed RNN-LSTM-LSTM model are reduced by 11.82%and 20.34%on the order storage and data migration,which has greatly improved the efficiency of trend-type capacity index prediction.

关键词： Recurrent Neural Network(RNN) Long Short-Term Memory(LSTM)network capacity prediction

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Advances in Research of Mechanism of Herb-Drug Interactions

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Medicinal Plant 2023年第1期14卷 108-113页

作者： Mingchen CAO Chuan wang Zhiwei YANG Zenan ZHANG wenxiao wang Hongxia YU Shasha ZHANG Cheng CHENG Wei REN The Affiliated Hospital of Qingdao University Qingdao 266000China

With the concurrent consumption of herbal medicines and conventional drugs,herb-drug interactions(HDIs)have become the most important clinical consequence of this practice.A general overview and the significance of pharmacokinetic and pharmacodynamic HDIs are provided,detailing basic mechanism,especially the metabolic enzymes and drug transporters,such as CYP450 and P-gp.

关键词： Herb-drug-interactions Metabolic enzymes Drug transporters CYP450 P-gp

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增值税转型与企业全球价值链分工位置升级

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中国经济问题 2023年第6期 37-51页

作者：吴翟王文晓南开大学经济学院国际经济研究所中南财经政法大学文澜学院

通过测度中国企业层面全球价值链分工位置,本文以2000—2013年间不同省市的企业增值税转型改革为冲击,构建双重差分模型,准确识别这一税收政策对于企业全球价值链分工位置的影响及其作用机制。研究发现:增值税转型能够有效促进企业向全... 详细信息

通过测度中国企业层面全球价值链分工位置,本文以2000—2013年间不同省市的企业增值税转型改革为冲击,构建双重差分模型,准确识别这一税收政策对于企业全球价值链分工位置的影响及其作用机制。研究发现:增值税转型能够有效促进企业向全球价值链上游位置攀升;促进固定资产投资、缓解融资约束、提高全要素生产率是增值税转型提升企业全球价值链分工位置的关键机制。该效应对于外资企业、低技术企业、加工贸易企业与劳动密集型企业更为显著。本文对于制定助力企业全球价值链升级的税收政策具有重要的借鉴意义。

关键词：全球价值链税收优惠增值税转型双循环新发展格局

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