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计量与测试技术 2014年第2期41卷 30-31页

作者：王俊涛卜庆娟李文虎蒲莉萍新乡航空工业(集团)有限公司河南新乡453049

对流量计量做了简要介绍,归纳了其使用及送检的主要特点及要求。根据长期工作中所见,总结出流量计送检过程中常见问题,并提出流量计送检时应注意的几项主要要求。

关键词：流量计量送检安全高效

钙镁肥对椰糠半基质栽培甜瓜产量和品质的影响

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现代农业科技 2021年第17期 54-56,60页

作者：钟泽许光利程果张海燕吴迪李文虎中国农业科学院郑州果树研究所河南郑州450009 江苏绿港现代农业发展股份有限公司江苏宿迁223800

为了探索椰糠半基质条件下,钙、镁肥对甜瓜产量和品质的影响,确定施用钙镁肥的必要性,配制不同钙、镁含量的肥料开展了比较试验。结果表明,与不含钙、镁的肥料相比,不同钙、镁含量的肥料处理甜瓜的产量和品质没有差异。在土壤水溶性钙11... 详细信息

为了探索椰糠半基质条件下,钙、镁肥对甜瓜产量和品质的影响,确定施用钙镁肥的必要性,配制不同钙、镁含量的肥料开展了比较试验。结果表明,与不含钙、镁的肥料相比,不同钙、镁含量的肥料处理甜瓜的产量和品质没有差异。在土壤水溶性钙1197.1 mg/kg、水溶性镁690.8 mg/kg,灌溉水钙含量68.0 mg/kg、镁含量22.7 mg/kg的条件下,能为甜瓜椰糠半基质栽培提供足够的钙、镁养分。这对简化施肥设施、减少投入成本、加速该模式在中小企业及个体种植户中推广有较大的现实意义。

关键词：甜瓜椰糠半基质栽培钙肥镁肥产量品质

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不稳定踝关节骨折脱位手术治疗

实用骨科杂志 2001年第6期7卷 421-422页

作者：李义强陈勇斌李文虎李文锐韶关市第一人民医院骨科广东韶关512000

目的：探讨不稳定踝关节骨折脱位较佳的手术治疗方案，提出提高手术治疗效果的措施。方法：回顾５２例闭合性不稳定踝关节骨折脱位患者的临床和手术资料。结果：全部病例得到随访，随访期ｌ～４年，按苟氏评定标准评定：优３４例，良１... 详细信息

目的：探讨不稳定踝关节骨折脱位较佳的手术治疗方案，提出提高手术治疗效果的措施。方法：回顾５２例闭合性不稳定踝关节骨折脱位患者的临床和手术资料。结果：全部病例得到随访，随访期ｌ～４年，按苟氏评定标准评定：优３４例，良１２例，可５例，差１例，手术优良率为８８．５％。结论：我们主张对不稳定踝关节骨折脱位采用手术复位内固定治疗，强调术中应注意距骨在踝穴内解剖关系，并注意下腔胖关节间隙距离。恢复踝穴和距骨的解剖关系是极为重要的治疗标准。

关键词：不稳定踝关节骨折脱位手术复位内固定三角韧带修复胫腓下联合分离

煤气化变换系统蒸汽过热器列管失效分析及防范措施

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煤化工 2020年第3期48卷 65-67页

作者：瞿磊李佐鹏王军龙王涛丁海洋李文虎张博陕西延长中煤榆林能源化工有限公司陕西榆林718500

针对陕西延长中煤榆林能源化工有限公司甲醇联合装置中煤气化变换系统蒸汽过热器列管失效的问题,采用金相组织、化学分析、扫描电镜及能谱实验进行了原因分析。结果表明,换热器列管表面存在大量由于氯离子腐蚀形成的点蚀坑,在温度和环... 详细信息

针对陕西延长中煤榆林能源化工有限公司甲醇联合装置中煤气化变换系统蒸汽过热器列管失效的问题,采用金相组织、化学分析、扫描电镜及能谱实验进行了原因分析。结果表明,换热器列管表面存在大量由于氯离子腐蚀形成的点蚀坑,在温度和环向应力的共同作用下,引起应力腐蚀开裂,最终导致换热器列管失效。并围绕腐蚀介质和应力两个因素,从设备选型、设备加工、工艺指标等方面提出了防范措施。

关键词：煤气化变换系统蒸汽过热器列管失效腐蚀氯离子应力

Analytical model of cutting force in axial ultrasonic vibration-assisted milling in-situ TiB_(2)/7050Al PRMMCs

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Chinese Journal of Aeronautics 2021年第4期34卷 160-173页

作者： Xiaofen liU wenhu WANG Ruisong JIANG Yifeng XIONG Kunyang liN Junchen li Chenwei SHAN Key Laboratory of High Performance Manufacturing for Aero Engine Ministry of Industry and Information TechnologySchool of Mechanical EngineeringNorthwestern Polytechnical UniversityXi'an 710072China Engineering Research Center of Advanced Manufacturing Technology for Aero Engine Ministry of EducationSchool of Mechanical EngineeringNorthwestern Polytechnical UniversityXi'an 710072China School of Aeronautics and Astronautics Sichuan UniversityChengdu 610065China

Ultrasonic vibration-assisted milling has been widely applied in machining the difficultto-cut materials owing to the remarkable improvements in reducing the cutting ***,analytical models to reveal the mechanism and predict the cutting force of ultrasonic vibrationassisted milling metal matrix composites are still needed to be *** this paper,an analytical model of cutting force was established for ultrasonic vibration-assisted milling in-situ TiB_(2)/7050 Al metal matrix *** modeling,change of motion of the cutting tool,contact of toolchip-workpiece and acceleration of the chip caused by ultrasonic vibration was considered based on equivalent oblique cutting ***,material properties,tool geometry,cutting parameters and vibration parameters were taken into ***,the developed analytical force model was validated with and without ultrasonic vibration milling experiments on in-situ TiB_(2)/7050 Al metal matrix *** predicted cutting forces show to be consistent well with the measured cutting ***,the relative error of instantaneous maximum forces between the predicted and measured data is from 0.4%to 15.1%.The analytical model is significant for cutting force prediction not only in ultrasonic-vibration assisted milling but also in conventional milling in-situ TiB_(2)/7050 Al metal matrix composites,which was proved with general applicability.

关键词： Al-MMCs Analytical model Cutting force In-situ Milling TiB_(2)particles Ultrasonic vibration

Network Embedding Algorithm for Vulnerability Assessment of Power Transmission lines Using Integrated Structure and Attribute Information

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CSEE Journal of Power and Energy Systems 2024年第1期10卷 351-360页

作者： Xianglong lian Tong Qian Zepeng li Xingyu Chen wenhu Tang Q.H.Wu School of Electric Power Engineering South China University of TechnologyGuangzhou 510640China

In power systems,failures of vulnerable lines can trigger large-scale cascading failures,and vulnerability assessment is dedicated to locating these lines and reducing the risks of such *** on a structure and attribute network embedding(SANE)algorithm,a novel quantitative vulnerability analysis method is proposed to identify vulnerable lines in this ***,a two-layered random walk network with topological and electrical properties of transmission lines is ***,based on the weighted degree of nodes in the two-layered network,the inter-layer and intra-layer walking transition probabilities are developed to obtain walk ***,a Word2Vec algorithm is applied to obtain lowdimension vectors representing transmission lines,according to obtained walk sequences for calculating the vulnerability index of transmissions ***,the proposed method is compared with three widely used methods in two test *** show the network embedding based method is superior to those comparison methods and can provide guidance for identifying vulnerable lines.

关键词： Network embedding random walk transmission lines vulnerability assessment

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风积沙路基干压法施工综述

价值工程 2012年第11期31卷 93-93页

作者：李文虎山东东方路桥建设总公司临沂276005

概述了风积沙路基在天然含水量状态下的压实工艺(俗称干压法),并通过试验路段的施工工作,获得了宝贵的试验数据、机械组合和施工工艺,为今后进得大面积的风积路基的施工提供了依据。

关键词：风积沙路基天然含水量压实造价

Distribution characteristics and source tracing of petroleum hydrocarbons in the northeastern South China Sea

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Chinese Chemical Letters 2020年第10期31卷 2854-2858页

作者： Shengying Gong wenhu liu Yazhuo li Jibiao Zhang Changlin Chen Jie Fu Department of Environmental Science and Engineering Fudan UniversityShanghai 200433China School of Environmental Science and Engineering Huazhong University of Science and TechnologyWuhan 430074China Department of Atmospheric and Oceanic Sciences and Institute of Atmospheric Sciences Fudan UniversityShanghai 200433China Innovation Center of Ocean and Atmosphere System Zhuhai Fudan Innovation Research InstituteZhuhai 518057China

In recent years,oil spills caused by human activities have occurred frequently,and the resultant oil pollution has received extensive attention *** this paper,a total of 50 water samples were collected from the northeastern part of the South China Sea,and total petroleum hydrocarbons(TPHs)and n-alkane content in the samples were analyzed by gas chromatography-flame ionization detector(GC-FID)*** petroleum hydrocarbon characteristic indices,such as carbon predominance index(CPI)and terrigenous/aquatic ratio(TAR),were calculated to trace the source of petroleum *** measured value of TPHs ranged from 121.31-603.02μg/*** surface waters,the TPHs in the no rthern coastal waters and the central waters were higher than that in the far *** ve rtical waters,the TPHs sharply decreased at first,and then increased slowly and finally reached a steady *** n-alkanes in the water samples were concentrated in C10-C38,and they were mainly from terrestrial higher *** waters in the near shore,mid-layer and deep sea showed a strong reducing terrestrial characteristic,while the surface waters in the open sea showed an obvious oxidizing endogenous characteristic.

关键词： Petroleum hydrocarbons South China Sea Oil spill n-Alkane Source tracing

颞浅动脉额支皮瓣与逆行耳后动脉皮瓣联合修复耳前皮肤软组织缺损

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中华整形外科杂志 2017年第1期33卷 8-11页

作者：聂开瑜陈伟魏在荣孙广峰曾雪琴杨成兰祁建平金文虎李书俊吴必华遵义医学院附属医院烧伤整形外科 563000

目的探讨利用颞浅动脉额支皮瓣与逆行耳后动脉皮瓣联合修复耳前皮肤软组织缺损的可行性及效果。方法于患侧颞部及耳后无毛区，分别设计带毛发的颞浅动脉额支皮瓣和无毛发的逆行耳后动脉皮瓣，以前者重建鬓角，后者修复鬓角与耳屏之间的... 详细信息

目的探讨利用颞浅动脉额支皮瓣与逆行耳后动脉皮瓣联合修复耳前皮肤软组织缺损的可行性及效果。方法于患侧颞部及耳后无毛区，分别设计带毛发的颞浅动脉额支皮瓣和无毛发的逆行耳后动脉皮瓣，以前者重建鬓角，后者修复鬓角与耳屏之间的无毛发区。供区直接拉拢缝合。结果2012年9月至2015年9月，于临床应用9例，皮瓣全部成活，供、受区切口均一期愈合，9例获得6～18个月随访，平均10个月，术区平整，耳前形态满意，远期瘢痕不明显。结论应用颞浅动脉额支皮瓣与逆行耳后动脉联合修复耳前区较大面积皮肤缺损，辅助切口少而隐蔽，方法简单，能同时重建耳前无毛区及鬓角，外观满意。

关键词：外科皮瓣颞浅动脉耳后动脉癌

Hierarchical graphite foil/CoNi2S4 flexible electrode with superior thermal conductivity for high-performance supercapacitors

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Journal of Energy Chemistry 2018年第2期27卷 463-471页

作者： Yunming li Jiahui Chen Yaqiang Ji wenhu Yang Xian-Zhu Fu Rong Sun Ching-Ping Wong Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen 518055 Guangdong China Shenzhen College of Advanced Technology University of Chinese Academy of Sciences Shenzhen 518055 Guangdong China School of New Energy Science and Engineering Xinyu University Xinyu 338004 Jiangxi China School of Electronics and Information Engineering Guangdong Ocean University Zhanjiang 524088 Guangdong China College of Materials Science and Engineering Shenzhen University Shenzhen 518061 Guangdong China Department of Electronic Engineering Faculty of Engineering The Chinese University of Hong Kong Hong Kong 999077 China

Effective heat dissipation is a crucial issue in electrochemical energy storage devices. Thus, it is highly desirable to develop high-performance electrode materials with high thermal conductivity. Here, we report a facile one-step electrodeposition method to synthesize ternary cobalt nickel sulfide（CoNi2S4）flower-like nanosheets which are grown on graphite foil（GF） as binder-free electrode materials for supercapacitors. The as-fabricated GF/CoNi2S4 integrated electrode manifested an excellent thermal conductivity of 620.1 W·m-1·K-1 and a high specific capacitance of 881 F·g-2 at 5 mA cm-2, as well as good rate capability and cycling stability. Ultimately, the all-solid-state symmetric supercapacitor based on these advanced electrodes demonstrated superior heat dissipation performance during the galvanostatic charge-discharge processes. This novel strategy provides a new example of effective thermal management for potential applications in energy storage devices.

关键词： Electrode materials Thermal conductivity Heat dissipation Energy storage Supercapacitors