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Exploration of instantaneous frequency for local control assessment in real-time hybrid simulation

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Earthquake Engineering and Engineering Vibration 2024年第4期23卷 995-1008页

作者： Xu weijie Peng Changle Guo Tong Chen cheng Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education Southeast UniversityNanjing 211189China School of Engineering San Francisco State UniversitySan Francisco 94132-1722USA

Local control parameters such as instantaneous delay and instantaneous amplitude play an essential role in evaluating the performance and maintaining the stability of real-time hybrid simulation(RTHS).However,existing methods have limitations in obtaining this local assessment in either the time domain or frequency *** this study,the instantaneous frequency is introduced to determine local control parameters for actuator tracking assessment in a real-time hybrid *** properties,including amplitude,delay,frequency and phase,are then calculated based on analytic signals translated from actuator tracking signals through the Hilbert *** issues are discussed and solutions are proposed for calculation of local control *** simulations are first conducted for sinusoidal and chirp signals with time varying amplitude error and delay to demonstrate the potential of the proposed *** tests also are conducted for a predefined random signal as well as the RTHS of a single degree of freedom structure with a self-centering viscous damper to experimentally verify the effectiveness of the proposed use of the instantaneous *** from the ensuing analysis clearly demonstrate that the instantaneous frequency provides great potential for local control assessment,and the proposed method enables local tracking parameters with good accuracy.

关键词： real-time hybrid simulation tracking assessment instantaneous frequency Hilbert transform

Electrochemical reaction mechanism of porous Zn_(2)Ti_(3)O_(8)as a high-performance pseudocapacitive anode for Li-ion batteries

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Chinese Chemical Letters 2022年第11期33卷 4776-4780页

作者： weijie cheng Qi Feng Zhanglin Guo Guanjun Chen Yong Wang Lixiong Yin Jiayin Li Xingang Kong School of Materials Science and Engineering Shaanxi University of Science and TechnologyXi'an 710021China Graduate School of Engineering Toin University of YokohamaKanagawa 225-8503Japan Department of Advanced Materials Science Faculty of EngineeringKagawa University2217-20 Hayashi-choTakamatsu-shi 761-0396Japan

Zn_(2)Ti_(3)O_(8),as a new type of anode material for lithium-ion batteries,is attracting enormous attention because of its low cost and excellent *** decent capacities have been reported,the electrochemical reaction mechanism of Zn_(2)Ti_(3)O_(8)has rarely been *** this work,a porous Zn_(2)Ti_(3)O_(8)anode with considerably high capacity(421 mAh/g at 100 mA/g and 209 mAh/g at 5000 mA/g after 1500 cycles)was reported,which is even higher than ever reported titanium-based anodes materials including Li_(4)Ti_(5)O_(12),TiO_(2)and Li_(2)ZnTi_(3)O_(8).Here,for the first time,the accurate theoretical capacity of Zn_(2)Ti_(3)O_(8)was confirmed to be 266.4 mAh/*** was also found that both intercalation reaction and pseudocapacitance contribute to the actual capacity of Zn_(2)Ti_(3)O_(8),making it possibly higher than the theoretical *** importantly,the porous structure of Zn_(2)Ti_(3)O_(8)not only promotes the intercalation reaction,but also induces high pseudocapacitance capacity(225.4 mAh/g),which boosts the reversible ***,it is the outstanding pseudocapacitance capacity of porous Zn_(2)Ti_(3)O_(8)that accounts for high actual capacity exceeding the theoretical *** work elucidates the superiorities of porous structure and provides an example in designing high-performance electrodes for lithium-ion batteries.

关键词： Zn_(2)Ti_(3)O_(8) Lithium-ion battery Electrochemical reaction mechanism Theoretical capacity Pseudocapacitance

Image Recognition Model of Fraudulent Websites Based on Image Leader Decision and Inception-V3 Transfer Learning

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China Communications 2024年第1期21卷 215-227页

作者： Shengli Zhou cheng Xu Rui Xu weijie Ding Chao Chen Xiaoyang Xu Information Department of Zhejiang Police College Hangzhou 310053China Hangzhou Dianzi University Hangzhou 310018China Big Data Laboratory of Zhejiang Police College Hangzhou 310053China Hangzhou Public Security Bureau Hangzhou 310002China

The fraudulent website image is a vital information carrier for telecom *** efficient and precise recognition of fraudulent website images is critical to combating and dealing with fraudulent *** research on image recognition of fraudulent websites is mainly carried out at the level of image feature extraction and similarity study,which have such disadvantages as difficulty in obtaining image data,insufficient image analysis,and single identification *** study develops a model based on the entropy method for image leader decision and Inception-v3 transfer learning to address these *** data processing part of the model uses a breadth search crawler to capture the image ***,the information in the images is evaluated with the entropy method,image weights are assigned,and the image leader is *** model training and prediction,the transfer learning of the Inception-v3 model is introduced into image recognition of fraudulent *** selected image leaders to train the model,multiple types of fraudulent websites are identified with high *** experiment proves that this model has a superior accuracy in recognizing images on fraudulent websites compared to other current models.

关键词： fraudulent website image leaders telecom fraud transfer learning

Enhancing cartilage regeneration and repair through bioactive and biomechanical modification of 3D acellular dermal matrix

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Regenerative Biomaterials 2024年第3期3卷 105-121页

作者： Wei Gao Tan cheng Zhengya Tang Wenqiang Zhang Yong Xui Min Han Guangdong Zhou Chunsheng Tao Ning Xu Huitang Xia weijie Sun Qingdao Medical College of Qingdao University Qingdao266071China Department of Infectious Diseases The First Affliated Hospital of Anhui Medical UniversityShushanHefei230022China Department of Orthopaedic Surgery Shanghai Sixth People's Hospital Affliated to Shanghai jiao Tong University School of MedicineShanghai200025China Department of Orthopedic Surgery Shanghai Eighth People's HospitalShanghai200235China Department of PlasticSurgery&Jinan ClinicalResearch Center for Tissue Engineering Skin Regeneration and Wound Repair The First Affliated Hospital of Shandong First Medical UniversityJinan266299China Department of Orthopaedics Ninety-seventh Hospital of the Chinese People's Liberation Army NavyQingdao266071China Department of Orthopaedics The First Affliated Hospital of Shandong First Medical UniversityJinan266299China Department of Plastic surgery Shanghai Key Laboratory of Tissue EngineeringShanghai Ninth People's HospitalShanghai jiao Tong University School of MedicineShanghai200023China Department of Thoracic Surgery Shanghai Children's HospitalShanghai Jiao Tong University School of MedicineShaghai200040China Department of Thoracic Surgery Shanghai Pulmonary HospitalSchool of MedicineTongji UniversityShanghai200433China

Acellular dermal matrix(ADM)shows promise for cartilage regeneration and ***,an effective decellularization technique that removes cellular components while preserving the extracellular matrix,the transformation of 2D-ADM into a suitable 3D scaffold with porosity and the enhancement of bioactive and biomechanical properties in the 3D-ADM scaffold are yet to be fully *** this study,we present an innovative decellularization method involving 0.125%trypsin and 0.5%SDS and a 1%Triton X-100 solution for preparing ADM and converting 2D-ADM into 3D-ADM *** scaffolds exhibit favorable physicochemical properties,exceptional biocompatibility and significant potential for driving cartilage regeneration in vitro and in *** further enhance the cartilage regeneration potential of 3D-ADM *** incorporated porcine-derived small intestinal submucosa(SIS)for bioactivity and calcium sulfate hemihydrate(CSH)for biomechanical *** resulting 3D-ADM+SIS scaffolds displayed heightened biological activity,while the 3D-ADM+CSH scaffolds notably bolstered biomechanical *** scaffold types showed promise for cartilage regeneration and repair in vitro and in vivo,with considerable improvements observed in repairing cartilage defects within a rabbit articular cartilage *** summary,this research introduces a versatile 3D-ADM scaffold with customizable bioactive and biomechanical properties,poised to revolutionize the field of cartilageregeneration.

关键词： acellular dermal matrix three-dimensional scaffolds cartilage regeneration small intestinal submucosa calcium sulfate hemihydrate

干部容错机制的建构逻辑、现实困境与优化路径

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治理研究 2023年第4期39卷 48-60,158页

作者：成为杰中共浙江省委党校(浙江行政学院)党史党建教研部中共浙江省委党校(浙江行政学院)全面从严治党研究中心

干部容错机制建构具有坚实的理论逻辑、实践逻辑、历史逻辑。当前干部容错机制存在的现实问题包括:干部管理制度的两大价值指引——全面从严治党和鼓励担当作为的关系尚未理顺,造成容错机制落实难;相关制度主体存在强大的行动惯性,主动... 详细信息

干部容错机制建构具有坚实的理论逻辑、实践逻辑、历史逻辑。当前干部容错机制存在的现实问题包括:干部管理制度的两大价值指引——全面从严治党和鼓励担当作为的关系尚未理顺,造成容错机制落实难;相关制度主体存在强大的行动惯性,主动性不够,造成容错机制启动难;机制本身程序内容科学性不强,造成容错机制运转不畅;部分容错案例结论公信力不足,削减了容错机制的权威性;制度效能显现不平衡,尚难满足事业改革发展需要。干部容错机制的优化路径包括加强顶层设计,推动容错机制系统化;明确容错机制架构,突出“一把手”主体责任;以党内民主方式推进容错公开,增强容错透明度和公信力;容错和纠错一体推进,实现容纠并举、协同试错;坚持依规容错,提升容错机制法治化水平。

关键词：干部激励容错纠错 “一把手” 依规治党

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历史自信的主体性意蕴、认知建构与实践要求

天津社会科学 2023年第3期3卷 14-20页

作者：成为杰中共浙江省委党校党史党建教研部中共浙江省委党校全面从严治党研究中心

从历史自信的主体性意蕴角度分析,中国共产党是用马克思主义武装起来的政党,是领导中国式现代化伟大实践的执政党,是中华优秀传统文化的忠实继承者和发展者。历史认知是历史自信的重要基础。在历史方位上,我国迈入全面建设社会主义现代... 详细信息

从历史自信的主体性意蕴角度分析,中国共产党是用马克思主义武装起来的政党,是领导中国式现代化伟大实践的执政党,是中华优秀传统文化的忠实继承者和发展者。历史认知是历史自信的重要基础。在历史方位上,我国迈入全面建设社会主义现代化国家新征程;在历史成就上,新时代的伟大变革具有里程碑意义;在历史经验上,必须倍加珍惜、长期坚持具有根本性和长远指导意义的十条历史经验;在历史使命上,要牢牢把握党的中心任务。坚定历史自信,要从精神上团结带领全体中国人民实现历史主动,要从思想上守正创新,实现马克思主义中国化时代化,要从实践上发展好中国特色社会主义,走好中国式现代化道路。

关键词：大历史观历史自信历史主动历史虚无主义中国式现代化道路

NEATmap: a high-efficiency deep learning approach for whole mouse brain neuronal activity trace mapping

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National Science Review 2024年第05期11卷 202-216页

作者： weijie Zheng Huawei Mu Zhiyi Chen Jiajun Liu Debin Xia Yuxiao cheng Qi Jing Pak-Ming Lau Jin Tang Guo-Qiang Bi Feng Wu Hao Wang AHU-IAI AI Joint Laboratory Anhui University Anhui Province Key Laboratory of Biomedical Imaging and Intelligent Processing Institute of Artificial IntelligenceHefei Comprehensive National Science Center National Engineering Laboratory for Brain-inspired Intelligence Technology and Application School of Information Science and TechnologyUniversity of Science and Technology of China Division of Life Sciences and Medicine University of Science and Technology of China Interdisciplinary Center for Brain Information Brain Cognition and Brain Disease InstituteShenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions Shenzhen Institute of Advanced Technology Chinese Academy of Sciences

Quantitative analysis of activated neurons in mouse brains by a specific stimulation is usually a primary step to locate the responsive neurons throughout the brain. However, it is challenging to comprehensively and consistently analyze the neuronal activity trace in whole brains of a large cohort of mice from many terabytes of volumetric imaging data. Here, we introduce NEATmap, a deep learning–based high-efficiency,high-precision and user-friendly software for whole-brain neuronal activity trace mapping by automated segmentation and quantitative analysis of immunofluorescence labeled c-Fos+neurons. We applied NEATmap to study the brain-wide differentiated neuronal activation in response to physical and psychological stressors in cohorts of mice.

关键词： whole-brain imagingneuronal activity trace mapping deep learning quantitative analysis

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海洋第三产业发展若干思考

开放导报 2016年第2期 23-27页

作者：程炜杰山东外贸职业学院山东青岛266100

我国海洋经济的产业结构已逐步形成"三二一"格局,海洋经济发展逐渐由"资源型"过渡为"服务型",海洋第三产业的重要性逐渐凸显。推进"一带一路"战略,有利于统筹海陆资源、促进互联互通,为我国海洋经济的发展提供了重要机遇,也提出了更高... 详细信息

我国海洋经济的产业结构已逐步形成"三二一"格局,海洋经济发展逐渐由"资源型"过渡为"服务型",海洋第三产业的重要性逐渐凸显。推进"一带一路"战略,有利于统筹海陆资源、促进互联互通,为我国海洋经济的发展提供了重要机遇,也提出了更高要求。文章主要分析了我国海洋第三产业的发展现状及特征,并从"一带一路"的战略角度提出了对策建议。

关键词：一带一路海洋第三产业产业升级战略统筹

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基于同伦稀疏STAP的低空风切变风速估计

系统工程与电子技术 2022年第4期44卷 1174-1181页

作者：李海程伟杰谢瑞杰中国民航大学天津市智能信号与图像处理重点实验室天津300300

在机载气象雷达前视阵下,由于杂波的距离依赖性导致独立同分布(independent identically distributed,IID)训练样本严重不足,传统的空时自适应处理(space-time adaptive processing,STAP)算法性能下降,风场速度估计不准。针对此问题,提... 详细信息

在机载气象雷达前视阵下,由于杂波的距离依赖性导致独立同分布(independent identically distributed,IID)训练样本严重不足,传统的空时自适应处理(space-time adaptive processing,STAP)算法性能下降,风场速度估计不准。针对此问题,提出一种基于同伦稀疏STAP的低空风切变风速估计方法,该方法仅需少量IID训练样本就能够达到较好的风场速度估计效果。首先,利用同伦稀疏恢复算法估计杂波协方差矩阵,从而重构出高分辨率的杂波空时二维谱。然后,通过求解STAP处理器的最优权矢量自适应滤除杂波。最后,实现对风场风速的准确估计。仿真结果证明所提方法的有效性。

关键词：机载气象雷达同伦稀疏空时自适应处理低空风切变风速估计

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