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Clinical efficacy and pathological outcomes of transanal endoscopic intersphincteric resection for low rectal cancer

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World Journal of Gastrointestinal Oncology 2024年第3期16卷 933-944页

作者： Zhi-Wen Xu Jing-Tao Zhu Hao-yu Bai xue-jun yu Qing-Qi Hong jun You Department of Gastrointestinal Oncology Surgery The First Affiliated Hospital of Xiamen UniversitySchool of MedicineXiamen UniversityXiamen 361000Fujian ProvinceChina

BACKGROUND Transanal endoscopic intersphincteric resection(ISR)surgery currently lacks sufficient clinical research and *** To investigate the clinical effectiveness of transanal endoscopic ISR,in order to promote the clinical application and development of this *** This study utilized a retrospective case series *** and pathological data of patients with lower rectal cancer who underwent transanal endoscopic ISR at the First Affiliated Hospital of Xiamen University between May 2018 and May 2023 were *** patients underwent transanal endoscopic ISR as the surgical *** conducted this study to determine the perioperative recovery status,postoperative complications,and pathological specimen charac-teristics of this group of *** This study included 45 eligible patients,with no perioperative *** overall incidence of early complications was 22.22%,with a rate of 4.44%for Clavien-Dindo grade≥III *** patients(4.4%)developed anastomotic leakage after surgery,including one case of grade A and one case of grade *** pathological examination confirmed negative circumferential resection margins and distal resection margins in all *** mean distance between the tumor lower margin and distal resection margin was found to be 2.30±0.62 *** transanal endoscopic ISR procedure consistently yielded high quality pathological *** Transanal endoscopic ISR is safe,feasible,and provides a clear anatomical *** is associated with a low incidence of postoperative complications and favorable pathological outcomes,making it worth further research and application.

关键词： Intersphincteric resection Transanal Rectal cancer Complications Endoscopic

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内地港澳大学生数字素养的行为机制探析

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广东青年研究 2024年第1期38卷 127-140页

作者：傅承哲薛宇君张健新华南师范大学政治与公共管理学院广州510000 华南师范大学粤港澳大湾区跨域治理与公共政策研究中心广州510000

建设数字中国已成为国家的重要战略,数字素养是港澳青年群体融入国家发展大局的重要途径。本研究基于数字素养理论和心理测量方法,明确港澳青年的数字素养评估维度,制定相应的数字素养评估方案,提出数字素养与技能测评指标和工具。研究... 详细信息

建设数字中国已成为国家的重要战略,数字素养是港澳青年群体融入国家发展大局的重要途径。本研究基于数字素养理论和心理测量方法,明确港澳青年的数字素养评估维度,制定相应的数字素养评估方案,提出数字素养与技能测评指标和工具。研究发现,数字素养结构在内地香港地区大学生和澳门地区大学生中总体相似,但各维度在影响程度上存在差异。数字权责对内地港澳大学生的影响最显著,数字远见对不同生源地的影响相对平均,数字规范、数字权责和数字使用对澳门地区生源的影响更为显著。多元线性回归分析也发现数字素养对于内地港澳大学生的国家认同培养具有正向影响作用。因此,要以数字素养作为内地港澳大学生融入数字中国的效标与抓手,构建中国特色的内地港澳大学生数字素养发展框架系统,以高校为主阵地全力提升内地港澳大学生的数字素养,鼓励内地港澳大学生参与实习和志愿服务,打造智慧便捷的数字生活场景,充分发挥数字素养在促进港澳青年融入国家发展大局的重要作用。

关键词：内地港澳大学生数字素养跨境发展数字中国国家发展

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Preparation of 4-and 6-desphenyl analogues of(-)-clausenamide and alternative synthesis of(+)-epi-clausenamide

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Chinese Chemical Letters 2011年第11期22卷 1261-1264页

作者： Jian jun xue yu Mei Zhou Xiao Ming yu Institute of Materia Medica Chinese Academy of Medical Sciences ＆ Peking Union Medical College Beijing 100050 China

4- and 6-desphenyl analogues of（-）-clausenamide,6 and 7,were prepared in optical active form from commercially available D-pyroglutamic acid and the known racemic pyrrolidinone 13,*** order to confirm the absolute s... 详细信息

关键词： (-)-Clausenamide Desphenyl analogue (+)-epi-Clausenamide Synthesis

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Thermal comfort and thermoregulation in manned space flight

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中国应用生理学杂志 2013年第6期29卷 518-524页

作者： Zhen-zhong YANG Jin-xue FEI xue-jun yu Department of Aerospace Biodynamics School of Aerospace Medicine the Fourth Military Medical University State Key Lab of Space Medicine Fundamental and Application China Astronaut Research and Training Center

Exposure to thermal environment is one of the main concerns for manned space exploration. By focusing on the works performed on thermoregulation at microgravity or simulated microgravity, we endeavored to review the investigation on space thermal environmental physiology. First of all, the application of medical requirements for the crew module design from normal thermal comfort to accidental thermal emergencies in a space craft will be addressed. Then, alterations in the autonomic and behavioral temperature regulation caused by the effect of weightlessness both in space flight and its simulation on the ground are also discussed. Furthermore, countermeasures like exercise training, simulated natural ventilation, encouraged drink, etc., in the protection of thermoregulation during space flight is presented. Finally, the challenge of space thermal environment physiology faced in the future is figured out.

关键词：载人航天飞行体温调节热舒适性模拟微重力环境生理学空间飞行太空探索应用程序

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高速圆柱滚子轴承瞬态热力耦合分析

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制造业自动化 2024年第8期46卷 161-165,210页

作者：张景豪余永健薛玉君李济顺河南科技大学机电工程学院河南洛阳471003 河南省机械设计及传动系统重点实验室河南洛阳471003 龙门实验室河南洛阳471003

为了探讨高速圆柱滚子轴承的温升特性及承载性能,利用有限元方法建立高速圆柱滚子轴承的瞬态热力耦合模型,通过计算得到了轴承的稳态和瞬态温度场,进而分析考虑热力耦合效应下不同内圈转速、径向载荷及滚动体材料对轴承接触压力及弹性... 详细信息

为了探讨高速圆柱滚子轴承的温升特性及承载性能,利用有限元方法建立高速圆柱滚子轴承的瞬态热力耦合模型,通过计算得到了轴承的稳态和瞬态温度场,进而分析考虑热力耦合效应下不同内圈转速、径向载荷及滚动体材料对轴承接触压力及弹性变形的影响。结果表明:内圈转速越高,轴承的稳态及瞬态温度越高;随着转速及载荷的增加,轴承的接触压力及弹性变形均增加,高速工况下陶瓷滚子轴承的承载性能明显高于钢制滚子轴承;考虑热力耦合效应与未考虑热力耦合效应的计算结果存在明显差异,热应力及热膨胀对轴承的影响很大。

关键词：高速圆柱滚子轴承热力耦合温升特性承载性能接触压力弹性变形

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Carbon dots-derived three-dimensional-ordered macroporous host with high penetrability and catalytic activity for LSBs under lean electrolyte

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Rare Metals 2024年第6期43卷 2560-2573页

作者： Jiao-Zi Duan Hua-yu Pei Quan Yang xue Li Xin Ba xue Yong jun-Ling Guo Si-yu Lu Green Catalysis Center College of ChemistryZhengzhou UniversityZhengzhou 450001China Country State Center for International Cooperation On Designer Low-Carbon&Environmental Materials School of Materials Science and EngineeringZhengzhou UniversityZhengzhou 450001China Hubei Institute of Quality Supervision Inspection Wuhan 430061China Department of Chemistry University of SheffieldSheffeld S37HFUK

The practical energy density of lithium-sulfur batteries(LSBs)is seriously limited by the high electrolyte-to-sulfur ratios(E/S).The E/S can be reduced by employing hosts with easy-to-infiltrate structure that ensures the uniform distribution of a lean electrolyte and high catalytic activity that can suppress"shuttle effect"via accelerating the slow conversion of soluble poly sulfides to insoluble *** the easy-to-infiltrate structures,the three-dimensional-ordered macroporous(3DOM)structure is easier to scale preparation and more suitable for the existing industrial ***,it is difficult to obtain the 3DOM with(1)high penetrability due to the high viscosity of frequently-used organic polymer precursors and(2)high catalytic activity due to the low confinement effect,meaning that uniformly dispersed small-sized catalytic materials are difficult to load on ***,using carbon dots(CDs)with both organic and inorganic properties as a precursor and aggregation limiting agent,a 3DOM host with high penetrability and homodispersed Ni particles of small sizes(Ni-CDs-3DOM)was *** this host:(1)CDs precursor with suitable viscosity can improve the penetrability.(2)CDs can effectively inhibit the agglomeration of Ni particles.(3)Uniformly dispersed small-size Ni particles offer high-efficiency catalytic activity toward sulfur ***,the Ni-CDs-3DOM/sulfur cathode exhibits high sulfur utilization and stable cycling performance even under high sulfur loading(5.5 mg·cm^(-2))and low E/S(6.5μl·mg^(-1)).This work indicates the usefulness of CDs in constructing hosts for LSBs with high energy density.

关键词： Lithium-sulfur batteries Carbon dots Catalytic action Easy-to-infiltrate structure Lean electrolyte

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Assessing target optical camouflage effects using brain functional networks:A feasibility study

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Defence Technology（防务技术） 2024年第4期34卷 69-77页

作者： Zhou yu Li xue Weidong Xu jun Liu Qi Jia Jianghua Hu Jidong Wu National Key Laboratory of Lightning Protection and Electromagnetic Camouflage Army Engineering University Nanjing 210007JiangsuChina Unit 31608 of PLA Xiamen 361000FujianChina School of Biological Sciences&Medical Engineering Southeast UniversityNanjing 210096JiangsuChina

Brain functional networks model the brain's ability to exchange information across different regions,aiding in the understanding of the cognitive process of human visual attention during target searching,thereby contributing to the advancement of camouflage *** this study,images with various camouflage effects were presented to observers to generate electroencephalography(EEG)signals,which were then used to construct a brain functional *** topological parameters of the network were subsequently extracted and input into a machine learning model for *** results indicate that most of the classifiers achieved accuracy rates exceeding 70%.Specifically,the Logistic algorithm achieved an accuracy of 81.67%.Therefore,it is possible to predict target camouflage effectiveness with high accuracy without the need to calculate discovery *** proposed method fully considers the aspects of human visual and cognitive processes,overcomes the subjectivity of human interpretation,and achieves stable and reliable accuracy.

关键词： Camouflage effect evaluation Electroencephalography(EEG) Brain functional networks Machine learning

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Adversarial Defense Technology for Small Infrared Targets

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Computers, Materials and Continua 2024年第1期81卷 1235-1250页

作者： yu, Tongan xue, Yali He, Yiming Cui, Shan Hong, jun College of Automation Engineering Nanjing University of Aeronautics and Astronautics Nanjing 210000 China Shanghai Electro-Mechanical Engineering Institute Shanghai 201109 China

With the rapid development of deep learning-based detection algorithms, deep learning is widely used in the field of infrared small target detection. However, well-designed adversarial samples can fool human visual perception, directly causing a serious decline in the detection quality of the recognition model. In this paper, an adversarial defense technology for small infrared targets is proposed to improve model robustness. The adversarial samples with strong migration can not only improve the generalization of defense technology, but also save the training cost. Therefore, this study adopts the concept of maximizing multidimensional feature distortion, applying noise to clean samples to serve as subsequent training samples. On this basis, this study proposes an inverse perturbation eliminationmethod based onGenerativeAdversarialNetworks (GAN)to realize the adversarial defense, and design the generator and discriminator for infrared small targets, aiming to make both of them compete with each other to continuously improve the performance of the model, find out the commonalities and differences between the adversarial samples and the original samples. Through experimental verification, our defense algorithmis not only able to cope with multiple attacks but also performs well on different recognition models compared to commonly used defense algorithms, making it a plug-and-play efficient adversarial defense technique. © 2024 The Authors. Published by Tech Science Press.

关键词： Adversarial machine learning

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Evolution of pore systems in low-maturity oil shales during thermal upgrading--Quantified by dynamic SEM and machine learning

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Petroleum Science 2024年第3期21卷 1739-1750页

作者： jun Liu xue Bai Derek Elsworth Key Laboratory of Deep Underground Science and Engineering(Ministry of Education) Institute of New Energy and Low-Carbon TechnologySichuan UniversityChengdu610065SichuanChina International Quantum Academy Shenzhen518048GuangdongChina Shenzhen Institute of Advanced Electronic Materials Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen518055GuangdongChina Department of Energy and Mineral Engineering Pennsylvania State University ParkPA 16802USA

In-situ upgrading by heating is feasible for low-maturity shale oil,where the pore space dynamically *** characterize this response for a heated substrate concurrently imaged by *** systematically follow the evolution of pore quantity,size(length,width and cross-sectional area),orientation,shape(aspect ratio,roundness and solidity)and their anisotropy—interpreted by machine *** indicate that heating generates new pores in both organic matter and inorganic ***,the newly formed pores are smaller than the original pores and thus reduce average lengths and widths of the bedding-parallel pore ***,the average pore lengths and widths are increased in the bedding-perpendicular ***,heating increases the cross-sectional area of pores in low-maturity oil shales,where this growth tendency fluctuates at300℃.In addition,the orientation and shape of the newly-formed heating-induced pores follow the habit of the original pores and follow the initial probability distributions of pore orientation and ***,limited anisotropy is detected in pore direction and shape,indicating similar modes of evolution both bedding-parallel and *** propose a straightforward but robust model to describe evolution of pore system in low-maturity oil shales during heating.

关键词： Low-maturity oil shale Pore elongation Organic matter pyrolysis In-situthermal upgrading Scanning electron microscopy(SEM) Machine learning

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The Consistency of LSE Estimators in Partial Linear Regression Models under Mixing Random Errors

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Acta Mathematica Sinica,English Series 2024年第5期40卷 1244-1272页

作者： yun Bao YAO yu Tan LÜ Chao LU Wei WANG xue jun WANG School of Mathematical Sciences Anhui UniversityHefei 230601P.R.China School of Big Data and Artificial Intelligence Chizhou UniversityChizhou 247000P.R.China School of Big Data and Statistics Anhui UniversityHefei 230601P.R.China

In this paper,we consider the partial linear regression model y_(i)=x_(i)β^(*)+g(ti)+ε_(i),i=1,2,...,n,where(x_(i),ti)are known fixed design points,g(·)is an unknown function,andβ^(*)is an unknown parameter to be estimated,random errorsε_(i)are(α,β)-mix_(i)ng random *** p-th(p>1)mean consistency,strong consistency and complete consistency for least squares estimators ofβ^(*)and g(·)are investigated under some mild *** addition,a numerical simulation is carried out to study the finite sample performance of the theoretical ***,a real data analysis is provided to further verify the effect of the model.

关键词： (α,β)-mixing random variables partial linear regression model least squares estimator consistency

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