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鞋类工艺与设计 2024年第2期4卷 60-62页

作者：王名昌陈业创桂林电子科技大学广西北海536000

本文针对民族文化旅游体验升级的挑战,利用虚拟现实技术的独特优势,从文化基因理论切入,设计了一套开发沉浸式虚拟现实体验产品的策略,旨在提供深度预览和感知民族文化的机会,以优化旅游决策过程并提升产品吸引力。

关键词：民族文化文化基因虚拟技术体验产品

活塞环表面MoS_(2)薄膜在干摩擦和贫油润滑条件下的摩擦学性能研究

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材料保护 2024年第3期57卷 80-87页

作者：李楠车银辉王铭昌苏州热工研究院有限公司广东深圳518000

大功率、长冲程和高爆发压柴油机是交通运输、工程机械、国防装备和核电应急发电机领域的重要动力设备。柴油机关键运动副活塞环-缸套在冷/热启动时,缸套的上下止点位置处于干摩擦或贫油润滑状态,易发生局部异常磨损导致动力性能丧失。... 详细信息

大功率、长冲程和高爆发压柴油机是交通运输、工程机械、国防装备和核电应急发电机领域的重要动力设备。柴油机关键运动副活塞环-缸套在冷/热启动时,缸套的上下止点位置处于干摩擦或贫油润滑状态,易发生局部异常磨损导致动力性能丧失。为抑制活塞环-缸套运动副的异常磨损,采用磁控溅射技术在活塞环表面制备了MoS_(2)薄膜;利用SRV-IV微动摩擦磨损试验机模拟柴油机频繁冷/热启动工况,评价了表面附加MoS_(2)薄膜的活塞环与缸套摩擦副的摩擦学性能;利用扫描电镜(SEM)表征了MoS_(2)薄膜微观结构和摩擦前后摩擦副的表面形貌。结果表明:相比于原始CKS活塞环-缸套,MoS_(2)薄膜活塞环-缸套在干摩擦条件下的摩擦系数从1.07大幅降低至0.11,缸套磨损率从8.61×10^(-6) mm^(3)/(N·m)降低至3.71×10^(-8) mm^(3)/(N·m);在常温贫油条件下摩擦系数从0.18降低至0.11,磨损率从1.43×10^(-7) mm^(3)/(N·m)降低至3.22×10^(-8) mm^(3)/(N·m);在高温贫油条件下摩擦系数从0.12降低至0.08,磨损率从7.08×10^(-8) mm^(3)/(N·m)降低至1.12×10^(-8 )mm^(3)/(N·m);摩擦过程中活塞环表面MoS_(2)薄膜的转移是摩擦副摩擦学性能提升的主要原因。

关键词：活塞环-缸套 MoS_(2)薄膜磁控溅射摩擦磨损性能

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核电厂除氧器接管焊缝缺陷分析

电力安全技术 2024年第5期26卷 75-78页

作者：李楠王铭昌郭帅飞苏州热工研究院有限公司江苏苏州215004

某核电厂大修时发现与除氧器本体连接的多个给水接管焊缝存在缺陷,通过理化检测、焊接设计强度校核、运行工况影响分析及应力分析等逐项评估,查找出缺陷产生原因为运行过程中除氧器上部进水管线存在空管段,在除氧器补水时发生水锤效应,... 详细信息

某核电厂大修时发现与除氧器本体连接的多个给水接管焊缝存在缺陷,通过理化检测、焊接设计强度校核、运行工况影响分析及应力分析等逐项评估,查找出缺陷产生原因为运行过程中除氧器上部进水管线存在空管段,在除氧器补水时发生水锤效应,导致除氧器本体振动,接管焊缝处应力过大或超限造成焊缝产生裂纹。

关键词：核电厂除氧器接管焊缝缺陷分析水锤

RDX crystals with high sphericity prepared by resonance acoustic mixing assisted solvent etching technology

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Defence Technology（防务技术） 2023年第10期28卷 23-32页

作者： Dongjie Liao Qian Liu Chunyan Li Ning Liu mingchang wang Chongwei An North University of China Taiyuan 030051China Yichang Testing Technique R&D Institute Yichang 443099China Xi'an Modern Chemistry Research Institute Xi'an 710065China

In order to obtain high-quality spherical RDX crystal particles,the RDX crystals were suspended in a mixed solvent of cyclohexanone and cyclohexane,subsequently a solvent etching study was carried out under the action of vibration/acoustic flow coupled flow field,which generated by resonance acoustic *** effects of solvent ratio,temperature,acceleration and experiment time on morphology as well as particle size of RDX crystals were *** only were the morphology,particle size distribution and crystal form of RDX crystals determined,but also the thermal decomposition performance and mechanical sensitivity of spherical RDX were examined and *** indicated that under the process of solvent/non-solvent volume ratio at 1:2,temperature of 40℃,acceleration of 40 g and experiment time of 4 h,α-type RDX crystal with sphericity of 0.92 can be ***,the median particle size(D_(50))of spherical RDX crystals is 215.8 μm with a unimodal particle size distribution(size span 1.34).For one thing,the thermal decomposition peak temperature of spherical RDX is about 2.5℃ higher than that of raw RDX,and apparent activation energy reaches 444.68 kJ/*** another thing,impact sensitivity and friction sensitivity of spherical RDX are 18.18% and 33.33% lower than that of raw RDX,*** demonstrates that safety of spherical RDX under thermal,impact and friction stimuli has been improved.

关键词： Resonance acoustic mixing Solvent etching RDX Sphericial explosive

基于多源数据融合的数字工厂三维模型重建与可视化

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测绘通报 2024年第2期 95-99页

作者：杜佳涛王凤艳王明常吴翔刘星男马润泽安志磊吉林大学地球探测科学与技术学院吉林长春130026

如何为企业安全生产、应急救援指挥、事故灾害调查等提供现势、详尽、精确的空间基础地理信息数据以辅助智能决策,是政府与企业面临的重要难题。本文从虚拟构建数字工厂关键技术出发,通过融合机载倾斜摄影测量技术宏观建模与局部地面三... 详细信息

如何为企业安全生产、应急救援指挥、事故灾害调查等提供现势、详尽、精确的空间基础地理信息数据以辅助智能决策,是政府与企业面临的重要难题。本文从虚拟构建数字工厂关键技术出发,通过融合机载倾斜摄影测量技术宏观建模与局部地面三维激光扫描技术精细建模,构建厂区模型;以前端Cesium框架和Web GL技术为依托,结合微软开发的Web预览版Bing地图服务,实现用户浏览器端的“数字工厂”三维场景可视化浏览,提升企业安全生产信息化水平与防范并遏制重大安全事故。

关键词：倾斜摄影测量地面LiDAR 数据融合 ICP 数字工厂 Cesium 模型可视化

Evolutionary Game-theoretic Modeling of Massive Distributed Renewable Energy Deployment Towards Low-carbon Distribution Networks

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Journal of Modern Power Systems and Clean Energy 2023年第5期11卷 1519-1528页

作者： Xuanyi Xiao Jianbing Yin Lin Chen mingchang wang Yi Zhao Zhiyi Li College of Electrical Engineering Zhejiang UniversityHangzhouChina State Grid Hangzhou Power Supply Company HangzhouChina School of Electric Power Shenyang Institute of EngineeringShenyangChina IEEE

This paper proposes an evolutionary game-theoretic model of massive distributed renewable energy deployment in order to shed light on the self-organization sustainable developments of renewable energies in distribution networks towards low-carbon targets. Since neighboring buses can interact in terms of energy exchanges, the return matrices of individual buses in the evolutionary game are established based on profiles of loads and renewable energy generation. More specifically, an evolutionary strategy is proposed based on the return matrices for individual buses to determine whether or not to deploy renewable energies in the next round of the game. Then, a dynamic model is derived for analyzing the renewable energy penetration rate in the distribution network throughout the multi-round evolutionary game. In theory, this model can reveal the self-organization process of renewable energy deployment in the distribution network. With this model, the distribution network operator would be aided in designing the incentives for buses deploying renewable energies toward a pre-defined low-carbon target. Numerical results on an actual 141-bus system and a synthetic 2000-bus system have demonstrated the validity and efficiency of the proposed model.

关键词： Distribution network renewable energy deployment self-organization evolutionary game

Evaluation and Driving Force Analysis of Cultivated Land Quality in Black Soil Region of Northeast China

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Chinese Geographical Science 2023年第4期33卷 601-615页

作者： wang mingchang LIU Xingnan LIU Ziwei wang Fengyan LI Xiaoyan HOU Guanglei ZHAO Shijun College of Geo-Exploration Science and Technology Jilin UniversityChangchun 130026China College of Earth Science Jilin UniversityChangchun 130100China Northeast Institute of Geography and Agroecology Chinese Academy of ScienceChangchun 130102China China Water Northeastern Investigation Design&Research Co.Ltd.Changchun 130021China

Cultivated land is an important natural resource to ensure food,ecological and economic *** cultivated land quality evaluation(CQE)is greatly significant for protecting and managing cultivated *** this study,320 counties in the black soil region of Northeast China(BSRNC)represent the research units used to construct the CQE system measuring the soil properties(SP),cultivated land productivity(CLP),ecological environment(EE)and social economy(SE).The total of 19 factors were selected to calculate the integrated fertility index(IFI)and divided into ***,we used the coupling coordination degree model to comprehensively analyze the spatial pattern of the cultivated land quality(CLQ)in the BSRNC,and use the structural equation model(SEM)to analyze the driving *** results show the following:1)The CLQ of 262 counties in the BSRNC is in a state of coupling and coordination,and the coupling and coordination degree presents a spatial distribution pattern of‘high in the southwest and northeast,low in the northwest and southeast’.The coordinated development degree of 271 counties is between 0.4 and 0.6,which is in a transitional state between coordination and disorder.2)The CLQ in the BSRNC is generally good,with an average grade of ***-quality cultivated land accounts for 58.45%of all counties,middle-and upper-quality cultivated land accounts for 27.05%,and poor-quality cultivated land accounts for 14.49%.3)The SEM analysis shows that the SP,CLP,EE,and SE all influence the *** them,the SP has the largest driving force on the CLQ,while the SE has the smallest driving force on *** results confirm that the main factors affecting the evaluation results are crop productivity level,normalized difference vegetation index,ratio vegetation index,difference vegetation index,and organic carbon *** implementing protection measures in counties with a low CLQ,considering a balanced coordination of multiple systems and reasonably c

关键词： cultivated land quality evaluation(CQE) black soil region of Northeast China(BSRNC) coupling coordination degree model structural equation model(SEM) driving forces

QoS数据不确定性下电力业务服务自适应选取模型

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电子设计工程 2024年第13期32卷 131-134,139页

作者：陈琳赵冬尹建兵王明昶徐航国网杭州供电公司浙江杭州310016 国网经济技术研究院有限公司北京102209

针对电力业务服务选取不可靠,造成用户服务质量不佳的问题,构建了QoS数据不确定性下电力业务服务自适应选取模型。通过局部约简处理方法,调整搜索空间,计算约束满意度的自适应值,采用动态适应性函数和惩罚函数进行服务寻优。充分考虑Qo... 详细信息

针对电力业务服务选取不可靠,造成用户服务质量不佳的问题,构建了QoS数据不确定性下电力业务服务自适应选取模型。通过局部约简处理方法,调整搜索空间,计算约束满意度的自适应值,采用动态适应性函数和惩罚函数进行服务寻优。充分考虑QoS数据不确定性,设计电力业务服务自适应选取流程。依据QoS属性,构建基于响应时间的自适应选取云模型,通过计算属性云期望值、熵值、随机性及反馈相似度实现电力业务服务自适应选取。由实验结果可知,该模型的用户满意度最大值为88%,计算时间最大值为0.69 s,能够有效提升电力业务服务质量。

关键词： QoS数据不确定性电力业务选取模型

FBXO38 regulates macrophage polarization to control the development of cancer and colitis

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Cellular & Molecular Immunology 2023年第11期20卷 1367-1378页

作者： Xin Zheng Qi Jiang Mingshun Han Fenfen Ye mingchang wang Ying Qiu Jialu wang Minxia Gao Fajian Hou Hongyan wang School of Life Science Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhou310024China State Key Laboratory of Cell Biology Shanghai Institute of Biochemistry and Cell BiologyCenter for Excellence in Molecular Cell ScienceChinese Academy of SciencesUniversity of Chinese Academy of SciencesShanghai200031China

Macrophages are highly plastic cells that differentially regulate multiple pathological conditions,including cancer and autoimmune *** response to various stimuli,macrophages activate different intrinsic signaling pathways and polarize into distinct macrophage *** aimed to identify key new effectors that could control macrophage polarization and impact the development of cancer or *** treatment with the supernatants of tumor cells,macrophages showed an upregulation in Fbxo38 ***,we further identified that FBXO38 promotes macrophage immunosuppressive function by upregulating the expression of M2-like genes via MAPK and IRF4 signaling without affecting M1-like macrophage *** of Fbxo38 in macrophages was found to block tumor development and protect against DSS-induced *** the distinct regulation of tumor development by FBXO38 in T cells and macrophages,we suggest that a comprehensive understanding of FBXO38 function in different cell types is critical for its further translational usage.

关键词： FBXO38 Macrophage polarization Tumor progression Colitis

Ferroptosis:a potential therapeutic target for stroke

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Neural Regeneration Research 2024年第5期19卷 988-997页

作者： Chengli Liu Guijun wang Wenrui Han Qi Tian mingchang Li Department of Neurosurgery Renmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina

Ferroptosis is a form of regulated cell death characterized by massive iron accumulation and iron-dependent lipid peroxidation,differing from apoptosis,necroptosis,and autophagy in several *** is regarded as a critical mechanism of a series of pathophysiological reactions after stroke because of iron overload caused by hemoglobin degradation and iron metabolism *** this review,we discuss ferroptosis-related metabolisms,important molecules directly or indirectly targeting iron metabolism and lipid peroxidation,and transcriptional regulation of ferroptosis,revealing the role of ferroptosis in the progression of *** present updated progress in the intervention of ferroptosis as therapeutic strategies for stroke in vivo and in vitro and summarize the effects of ferroptosis inhibitors on *** review facilitates further understanding of ferroptosis pathogenesis in stroke,proposes new targets for the treatment of stroke,and suggests that more efforts should be made to investigate the mechanism of ferroptosis in stroke.

关键词： cell death ferroptosis oxidative stress stroke treatment