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江西科学 2015年第3期33卷 353-354,387页

作者：叶隽黄福生古振炎岳慧芳江西师范大学数学与信息科学学院南昌330022

讨论了在无零因子半环上p-内射半模与可除半模的关系,并在此基础上讨论了p-内射半模的几个性质,最后建立了一个有关p.p半环上p-内射半模的结果。

关键词： p-内射半模可除半模真正合列 p.p半环

Comparison of edge cracking and tensile cracking in in-situ deformation at 150℃of Mg-2Zn-1.5Mn alloy sheet

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Journal of Materials Science & Technology 2022年第17期112卷 24-35页

作者： Qiang Liu Jiangfeng Song Yuanding huang Bin Jiang Biquan Xiao fusheng Pan National Engineering Research Center for Magnesium Alloys Chongqing UniversityChongqing 400044China MagIC-Magnesium innovation Centre Helmholtz-Zentrum GeesthachtMax-Planck-Str.121502 GeesthachtGermany

The Mg-2Zn-1.5Mn alloy(ZM21)sheets were hot-rolled in a single pass at 150℃with different reductions through on-line heating *** and edge cracking behavior of the rolled sheets were *** in-situ tensile tests at 150℃were also carried out,the crack initiation and propagation were compared with the edge cracking behavior of ZM21 sheets prepared by on-line heating *** results reveal that the edge cracks are most likely to originate in the rolling direction and normal direction(RD-ND)plane due to the secondary tensile stress along *** cracking becomes more severe with an increasing *** edge cracks mainly initiate and propagate in the fine recrystallized grain areas and the junction of recrystallized grains and sub-grains with hard *** in-situ tensile test indicates that micro-cracks mainly initiate at the triple junction of grain boundaries where grains have hard orientation with low basal Schmid factor(SF).Meanwhile,those cracks are more likely to propagate along the grain boundaries with maximum difference in basal Schmid ***,the crack initiation and propagation during the in-situ tensile deformation at 150℃are found not to be associated with the recrystallization.

关键词： ZM21 Mg alloy On-line heating rolling In-situ tensile test Edge crack

Superhydrophobic coatings for corrosion protection of magnesium alloys

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Journal of Materials Science & Technology 2020年第17期52卷 100-118页

作者： Wenhui Yao Liang Wu Guangsheng huang Bin Jiang Andrej Atrens fusheng Pan State Key Laboratory of Mechanical Transmission College of Materials Science and EngineeringChongqing UniversityChongqing 400044China National Engineering Research Center for Magnesium Alloys Chongqing UniversityChongqing 400044China School of Mechanical and Mining Engineering The University of QueenslandBrisbane Qld 4072Australia

Magnesium(Mg)alloys show great potential to be extensively applied in practice owing to their superior properties,while the poor corrosion resistance does undoubtedly restrict their *** coatings with good repellency to corrosive solutions can significantly decrease the interaction between the corrosive species and the substrate,so that they are receiving a lot of attention to improve the corrosion resistance of Mg *** strategies have been introduced to develop a superhydrophobic coating on Mg alloys,which were reviewed to elucidate the current research status to provide a clue or thinking for beginning ***,the existing issues of superhydrophobic coating were discussed,especially for their real applications in practice,mainly owing to their poor mechanical *** on the existing issues,the future study was discussed to improve the stability of hierarchical structures and entrapped air pockets,impart the superhydrophobic coating self-healing property to repair the damaged area during service,provide double protection by incorporation of corrosion inhibitors,or even introduce slippery liquid-infused porous surfaces with lubricant layer to provide better corrosion protection for Mg alloys.

关键词： Superhydrophobic coating Corrosion protection Magnesium alloy Synthesis method Existing issues Future perspective

肠息肉内镜下高频电切除术后复发的列线图模型构建研究

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现代科学仪器 2024年第2期41卷 136-140页

作者：李俊俊余付胜黄乐鹏宣城市郎溪县人民医院消化内科安徽宣城242100

目的:建立个体化肠息肉内镜下高频电切除术后复发的风险预测模型。方法:以行高频电切除术的340例肠息肉患者为研究对象,建立肠息肉内镜下高频电切除术后复发的风险预测模型。结果:Logistic回归分析显示年龄≥60岁、肠息肉数量≥3个、肠... 详细信息

目的:建立个体化肠息肉内镜下高频电切除术后复发的风险预测模型。方法:以行高频电切除术的340例肠息肉患者为研究对象,建立肠息肉内镜下高频电切除术后复发的风险预测模型。结果:Logistic回归分析显示年龄≥60岁、肠息肉数量≥3个、肠息肉直径≥2cm、腺瘤性肠息肉、吸烟史、合并代谢综合征是肠息患者内镜下高频电切除术后复发的危险因素,以此构建列线图模型C-统计量指数为0.831,校正曲线和标准曲线拟合度较好。结论:年龄≥60岁、肠息肉数量≥3个、肠息肉直径≥2cm、腺瘤性肠息肉、吸烟史、合并代谢综合征是肠息肉患者内镜下高频电切除术后复发的危险因素,以此构建的列线图模型具有较好的预测效能。

关键词：肠息肉术后复发影响因素列线图

约氏疟原虫子孢子入侵wistar大鼠肝内的扫描电镜观察

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寄生虫与医学昆虫学报 1996年第1期3卷 1-3页

作者：黄复生王兴相曹晓东况明书第三军医大学寄生虫学教研室

在约氏疟原虫子孢子接种大鼠１０－３０ｍｉｎ后，通过大鼠的肝脏冷冻断裂，对其断裂面进行扫描电镜观察。结果显示：在接种后１０ｍｉｎ就可见较多子孢子被枯否氏细胞捕获，有些子孢子正侵入肝细胞；子孢子与肝细胞膜接触时，膜内凹，... 详细信息

在约氏疟原虫子孢子接种大鼠１０－３０ｍｉｎ后，通过大鼠的肝脏冷冻断裂，对其断裂面进行扫描电镜观察。结果显示：在接种后１０ｍｉｎ就可见较多子孢子被枯否氏细胞捕获，有些子孢子正侵入肝细胞；子孢子与肝细胞膜接触时，膜内凹，随着侵入继续，内凹加深；部分子孢子似可直接与肝细胞膜接触。

关键词：疟原虫约氏疟原虫子孢子扫描电镜

Enhanced mechanical properties of AZ31 magnesium alloy sheets by continuous bending process after V-bending

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Progress in Natural Science:Materials International 2016年第1期26卷 97-102页

作者： Tingzhuang Han Guangsheng huang Yougen Wang Guangang Wang Yanchun Zhao fusheng Pan State Key Laboratory of Mechanical Transmission College of Materials Science and Engineering Chongqing University National Engineering Research Center for Magnesium Alloys Chongqing University Chongqing Research Center for Advanced Materials Chongqing Academy of Science & Technology

The effects of V-bending process, continuous bending process and combination process on the microstructure and mechanical properties and formability of an AZ31 magnesium alloy sheet were investigated. The experimental results showed that no twins were found in the microstructure of all samples after processes due to the fine grain. The V-bending and continuous bending processes were proved to be an effective approach to modify the mechanical properties and formability. While the samples after the combination process exhibited better mechanical properties and formability than the single processed sample. The yield strength significantly decreased with the value of 100 MPa and the fracture elongation enhanced to 18.3% at room temperature. The Erichsen value was 5.0 mm which was significantly increased by 117% compared with as-received sample. The superior formability of combination processed samples was mainly attributed to the smaller r-value and n-value.

关键词： AZ31 magnesium alloy Continuous bending V-bending Mechanical properties Formability

Strength-ductility balance of AZ31 magnesium alloy via accumulated extrusion bonding combined with two-stage artificial cooling Author links open overlay panel

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Journal of Magnesium and Alloys 2023年第5期11卷 1549-1555页

作者： Tingzhuang Han Guangsheng huang Heng Li Lifei Wang Hua Zhang fusheng Pan State Key Laboratory of Solidification Processing School of Materials Science&EngineeringNorthwestern Polytechnical UniversityXi'an 710072PR China Shaanxi Key Lab oratory of High-Performance Precision Forming Technology and Equipment Northwestern Polytechnical UniversityXi'an 710072PR China State Key Laboratory of Mechanical Transmission College of Materials Science and EngineeringChongqing UniversityChongqing 400044PR China College of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan 030024PR China Institute for Advanced Studies in Precision Materials Yantai UniversityYantai 264005PR China

AZ31 Mg alloy with heterogeneous bimodal grain structure(smaller grain size of 5-20µm and coarser grain size of 100-200µm)was subjected to accumulated extrusion bonding(AEB)at 250℃combined with two-stage artificial cooling in this work,*** water cooling and artificial *** microstructure developed consecutively as a result of discontinuous dynamic recrystallization(DDRX)for the AEBed samples.{10-12}tensile twinning also played an important role for the AEB with local water cooling at the initial extrusion stage in the *** water cooling could further reduce the DRXed grain size to~2.1µm comparing that without water *** the grain growth rate was reduced by artificial cooling out of extrusion *** the combination of two-stage cooling,the fine DRXed grains at sizing band were almost retained with average grain size of~2.3µm after the sheet out of extrusion die,and the unDRXed grains with high residual dislocation density accumulation were also *** tensile tests results indicated that a good strength-ductility balance with a high ultimate tensile strength(319 MPa vs.412 MPa)and fracture elongation(19.9%vs.30.3%)were *** strength enhancement was mainly owing to the grain refinement and local residual plastic strain reserved by the artificial *** excellent ductility originated from fine DRXed microstructure and ED-tilt double peak texture.

关键词： Magnesium alloy Accumulated extrusion bonding Local water cooling Artificial cooling Microstructure Mechanical properties

深化财政专项资金使用管理及绩效发挥机制研究

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河南科技 2022年第19期41卷 128-131页

作者：唐玮罡郭艳青刘小可赵倩黄福生河南省科研平台服务中心河南郑州450008

财政专项资金是我国开展科技创新、基础设施建设的重要保障,是国家发挥政府职能的重要体现。随着我国经济的发展,我国的专项资金投入也越来越大,在为我国经济、科技发展带来有力支撑的同时,也给专项资金使用管理带来了巨大挑战。专项资... 详细信息

财政专项资金是我国开展科技创新、基础设施建设的重要保障,是国家发挥政府职能的重要体现。随着我国经济的发展,我国的专项资金投入也越来越大,在为我国经济、科技发展带来有力支撑的同时,也给专项资金使用管理带来了巨大挑战。专项资金使用管理不规范、资金使用效益达不到预期的情况十分常见。因此,为了充分提升我国专项资金的使用效益,详细探讨了现阶段我国财政专项资金使用中存在的问题,并对规范专项资金管理提出几点建议,以期对其有所帮助。

关键词：财政专项资金使用管理绩效

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河南省财政科技专项经费管理问题研究

河南科技 2023年第8期42卷 155-158页

作者：郭艳青唐玮罡刘小可赵倩黄福生河南省科研平台服务中心河南郑州450000

【目的】财政科技专项经费投入是反映国家科研实力最为关键的指标之一,也是国家科学进步创新发展的基础和前提。【方法】纵观我国,目前科学技术专项经费投入一直是以中央政府和地方财政的纵向财政性科技支出为主,从1985年我国开始对科... 详细信息

【目的】财政科技专项经费投入是反映国家科研实力最为关键的指标之一,也是国家科学进步创新发展的基础和前提。【方法】纵观我国,目前科学技术专项经费投入一直是以中央政府和地方财政的纵向财政性科技支出为主,从1985年我国开始对科学技术进行拨款和改造,就推出了大量的帮扶和竞争机制,随后又陆续实施一些财政性科学技术计划和科研基金,并将之视为财政科学技术专项经费的主要途径[1]。本研究运用描述统计分析方法,从国家科技重大专项财政资金使用中发现问题、剖析根源。【结果】由于思想、政策、能力、责任等,本研究提出投入总量不足、监管力度不够、拨付程序不够标准、专业人员不足等问题。【结论】对如何做好国家科技专项财政资金使用,提出加强管理效率、优化人才队伍、完善机制等措施和建议。

关键词：财政科技专项经费管理

IL-6对约氏疟原虫子孢子入侵和红外期发育的影响

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寄生虫与医学昆虫学报 1998年第2期5卷 79-83页

作者：黄复生王兴相段建华况明书第三军医大学寄生虫学教研室

将１０４ｕＩＬ－６在子孢子接种前或后分别注入大鼠体内，观察比较子孢子发育率、红外期原虫直径。结果显示：子孢子接种前、子孢子接种后注入１０４ｕＩＬ－６及对照组的子孢子发育率分别为４．８３％、４．４５％、２．２２％，红外... 详细信息

将１０４ｕＩＬ－６在子孢子接种前或后分别注入大鼠体内，观察比较子孢子发育率、红外期原虫直径。结果显示：子孢子接种前、子孢子接种后注入１０４ｕＩＬ－６及对照组的子孢子发育率分别为４．８３％、４．４５％、２．２２％，红外期原虫直径分别为２３．０５μｍ、２３．４１μｍ、２９．０９μｍ。表明ＩＬ－６对疟原虫子孢子发育率无明显影响，但可影响红外期的发育速度。

关键词：约氏疟原虫子孢子红外期白细胞介素6