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基于开源项目的网页设计与制作课程混合式教学模式研究

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信息与电脑 2024年第14期36卷 234-237页

作者：张旭宁张峻铭张锌亿陈智慧韩智慧王殿利长春科技学院智能制造学院吉林长春130000 杭州海康威视数字技术股份有限公司浙江杭州310000 中建八局总承包建设有限公司上海200120

在大数据时代,在线教学平台与开源项目的结合正成为教学改革的新风向标。本文深入剖析了网页设计与制作课程传统教学模式的局限,同时密切结合学生在课堂上的实际表现和实践效果,构建了一个基于开源项目的混合式教学模式。这一模式旨在... 详细信息

在大数据时代,在线教学平台与开源项目的结合正成为教学改革的新风向标。本文深入剖析了网页设计与制作课程传统教学模式的局限,同时密切结合学生在课堂上的实际表现和实践效果,构建了一个基于开源项目的混合式教学模式。这一模式旨在全方位强化学生的自我驱动学习能力,增进团队协同合作精神,激发创新融合能力,从而大幅提升课程教学的整体成效。

关键词：开源项目网页设计与制作混合式教学

Metallogenesis related to Mesozoic Granitoids in the Nanling Range, South China and Their Geodynamic Settings

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Acta Geologica Sinica(English Edition) 2005年第6期79卷 810-820页

作者： HUA Renmin CHEN Peirong zhang Wenlan YAO junming LIN Jinfu zhang Zhanshi GU Shengyan LIU Xiaodong QI Huawen State Key Laboratory for Mineral Deposit Research Nanjing University Nanjing 210093 China

Affected by the compressive stress from the South-Central （Indo-China） Peninsula, the Indosinian orogenesis, characterized by collision, thrust and uplifting, took place inside the South China Plate during 250-230 Ma. The ages of the Indosinian granitoids in the Nanling Range and vicinity areas are mostly 240-205 Ma, indicating that they were emplaced in both late collision and post-collision geodynamic environments. No important granite-related metallogenesis occurred in this duration. A post-orogenic setting started at the beginning of the Yanshanian Period, which controlled large-scale granitic magmatism and related metallogenesis. This paper makes the first attempt to divide the Yanshanian Period into three sub-periods, i.e. the early, middle and late Yanshanian Periods, based mainly on the features of magmatism, especially granitoids and related metallogenesis and their geodynamic environments. The magmatic association of the Early Yanshanian （about 185-170 Ma） comprises four categories of magmatism, i.e. basalt, bimodal volcanics, A-type granite and intraplate high-K calc-alkaline （HKCA） magmatism, which indicates an extension-thinning of lithosphere and upwelling of mantle material to a relative small and local extent. Pb-Zn, Cu and Au mineralizations associated with HKCA magmatism represents the first high tide of Mesozoic metallogenesis in the Nanling Range area. During the middle Yanshanian, the lithosphere was subjected to more extensive and intensive extending and thinning, and hence mantle upwelling and basaltic magma underplating caused a great amount of crust remelting granitoids. This period can be further divided into two stages. The first stage （170-150 Ma） is represented by large-scale emplacement of crust remelting granites with local tungsten mineralization at its end. The second stage （150-140 Ma） is the most important time of large-scale mineralizations of non-ferrous and rare metals, e.g. W, Sn, Nb-Ta, Bi, Mo, Be, in the Nanling Range area. T

关键词： metallogenesis granitoids geodynamic setting Yanshanian Period Nanling Range

Self-assembly of three-dimensional CdS nanosphere/graphene networks for efficient photocatalytic hydrogen evolution

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Journal of Energy Chemistry 2019年第4期28卷 34-38页

作者： Zhijian Wang Zhi Liu Jiazang Chen Hongbin Yang Jianqiang Luo Jiajian Gao junming zhang Cangjie Yang Suping Jia Bin Liu State Key Laboratory of Coal Conversion Institute of Coal Chemistry Chinese Academy of Sciences School of Chemical and Biomedical Engineering Nanyang Technological University

In this work, we report the construction of three-dimensional(3D) CdS nanosphere/graphene networks by a one-step hydrothermal self-assembly route. The 3D graphene networks not only enhance the light scattering, thanks to the interconnected 3D architecture, but also improve the crystallinity of deposited CdS nanospheres, and at the same time provide a direct electron pathway to quickly separate the photogenerated electron-hole pairs from CdS, which thus dramatically improve the photocatalytic *** optimized 3D CdS nanosphere/graphene networks with 2 wt% of graphene could produce molecular hydrogen at a rate of 2310 μmol gcatalyst^(-1) h^(-1) under visible-light illumination(λ > 400 nm).

关键词： CdS nanosphere 3D graphene network Charge transfer Photocatalysis Hydrogen evolution

12Cr钢表面激光熔覆1Cr0.5Mo合金组织与性能研究

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焊接技术 2024年第9期53卷 27-31页

作者：徐顺鑫王大勇张峻铭孙震于兴华张国荣东方电气集团东方汽轮机有限公司四川德阳618000 东方电气集团科学技术研究院有限公司四川成都618000 北京理工大学重庆创新中心重庆500112 山东大学工程训练中心山东济南250002

12Cr钢因其具有优异的高温蠕变强度及良好的抗蒸汽氧化能力,在超超临界机组中得到了广泛应用。为保证轴颈区域的耐磨性,需在其表面制备1层1Cr0.5Mo合金,但常规的埋弧焊等工艺易产生微裂纹等缺陷。文中采用激光熔覆工艺,在12Cr钢表面熔覆... 详细信息

12Cr钢因其具有优异的高温蠕变强度及良好的抗蒸汽氧化能力,在超超临界机组中得到了广泛应用。为保证轴颈区域的耐磨性,需在其表面制备1层1Cr0.5Mo合金,但常规的埋弧焊等工艺易产生微裂纹等缺陷。文中采用激光熔覆工艺,在12Cr钢表面熔覆1Cr0.5Mo合金,并针对熔覆层的组织及性能进行研究,通过对激光熔覆试样进行成分分析、PT试验、微观金相观察、硬度测试和拉伸试验,初步验证了激光熔覆技术在保证12Cr钢表面耐磨性能方面的可行性。

关键词：火电汽轮机 12Cr钢激光熔覆 1Cr0.5Mo合金

Equivalent electromagnetic parameters for microwave metamaterial absorber using a new symmetry model

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Chinese Physics B 2019年第5期28卷 350-354页

作者： junming zhang Donglin He Guowu Wang Peng Wang Liang Qiao Tao Wang Fashen Li Key Laboratory for Magnetism and Magnetic Materials (Ministry of Education) Lanzhou University Key Laboratory of Special Function Materials and Structure Design (Ministry of Education) Lanzhou University

Transmission line theory uses the complex nature of permeability and permittivity of a conventional magnetic absorber to evaluate its absorption properties and mechanism. However, because there is no method to obtain the electromagnetic parameters of a metamaterial-absorber integrated layer(composed of a medium layer and a periodic metal array), this theory is seldom used to study the absorption properties of the metamaterial absorber. We propose a symmetry model to achieve an equivalent complex permittivity and permeability model for the integrated layer, which can be combined with the transmission line theory to calculate metamaterial absorption properties. The calculation results derived from both the transmission line theory and the high-frequency structure simulator are in good agreement. This method will be beneficial in practical investigations of the absorption mechanism of a metamaterial absorber.

关键词： metamaterial absorber equivalent electromagnetic parameters transmission line theory

晚期胃癌中SEPTIN9甲基化情况、E-钙黏蛋白表达情况及其与患者预后的关系

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癌症进展 2024年第17期22卷 1947-1951页

作者：单晨徐珊林千同黄美芳陈怡坤张军明上饶市人民医院消化内镜中心江西上饶3340000 上饶市人民医院消化内科江西上饶3340000 上饶市人民医院普外科江西上饶3340000

目的探讨晚期胃癌中SEPTIN9甲基化情况、E-钙黏蛋白(E-cadherin)表达情况及其与患者预后的关系。方法取52例晚期胃癌患者的胃癌组织及癌旁组织,采用甲基化特异性聚合酶链反应(MSP)检测SEPTIN9甲基化情况,采用蛋白质印迹法检测E-cadheri... 详细信息

目的探讨晚期胃癌中SEPTIN9甲基化情况、E-钙黏蛋白(E-cadherin)表达情况及其与患者预后的关系。方法取52例晚期胃癌患者的胃癌组织及癌旁组织,采用甲基化特异性聚合酶链反应(MSP)检测SEPTIN9甲基化情况,采用蛋白质印迹法检测E-cadherin的相对表达量,比较胃癌组织和癌旁组织以及不同临床特征晚期胃癌患者SEPTIN9甲基化情况和E-cadherin相对表达量。对所有患者随访1年,记录患者随访期间的生存情况,比较不同SEPTIN9甲基化情况和E-cadherin相对表达量晚期胃癌患者的生存情况,并采用Cox风险比例回归模型分析晚期胃癌患者预后的影响因素。结果晚期胃癌患者胃癌组织中SEPTIN9甲基化阳性率明显高于癌旁组织,E-cadherin相对表达量明显低于癌旁组织,差异均有统计学意义(P﹤0.01)。中低分化、有淋巴结转移的晚期胃癌患者胃癌组织中SEPTIN9甲基化阳性率均高于高分化、无淋巴结转移的患者,差异均有统计学意义(P﹤0.05);中低分化、有淋巴结转移的胃癌患者胃癌组织中E-cadherin相对表达量均低于高分化、无淋巴结转移的患者,差异均有统计学意义(P﹤0.05)。SEPTIN9甲基化阳性晚期胃癌患者的1年生存率低于SEPTIN9甲基化阴性患者,E-cadherin高表达晚期胃癌患者的1年生存率高于E-cadherin低表达患者,差异均有统计学意义(P﹤0.05)。多因素Cox回归分析结果显示,淋巴结转移情况、肿瘤分化程度、SEPTIN9甲基化情况、E-cadherin相对表达量均是晚期胃癌患者预后的影响因素(P﹤0.05)。结论晚期胃癌患者胃癌组织中SEPTIN9甲基化阳性率较高,E-cadherin相对表达量较低。SEPTIN9甲基化情况和E-cadherin表达情况可反映晚期胃癌患者的预后情况,且与淋巴结转移和肿瘤分化程度有关。

关键词： SEPTIN9 E-钙黏蛋白晚期胃癌预后

电厂锅炉电除尘气力自动输灰优化改造方法研究

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自动化应用 2024年第8期65卷 13-15页

作者：张峻铭周天顺杨永秀王洪玉武军刘伟国能锦界能源有限责任公司陕西榆林719319

针对电厂锅炉电除尘气力输灰均匀性差、输灰管道极易出现堵塞现象的问题,开展电厂锅炉电除尘气力自动输灰优化改造方法研究。为实现对输灰偏差的控制,在输灰管道上设置压力传感器;利用控制算法自动调节输灰速度;通过增设缓冲罐、平衡流... 详细信息

针对电厂锅炉电除尘气力输灰均匀性差、输灰管道极易出现堵塞现象的问题,开展电厂锅炉电除尘气力自动输灰优化改造方法研究。为实现对输灰偏差的控制,在输灰管道上设置压力传感器;利用控制算法自动调节输灰速度;通过增设缓冲罐、平衡流量计等措施,避免输灰管道的堵塞,同时保证多个管道在同一时刻的输灰量达到平衡。实例证明,应用新的改造方法后,电厂锅炉电除尘气力自动输灰均匀性显著提升,且有效减少了输灰管道堵塞现象的发生,提升了电厂锅炉的运行性能。

关键词：电厂电除尘自动输灰气力锅炉

Simulation of Supercritical Carbon Dioxide Fracturing in Shale Gas Reservoir

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Journal of Thermal Science 2021年第4期30卷 1444-1451页

作者： SONG Weiqiang NI Hongjian TANG Peng zhang Shichuan GAO Jichao zhangjunming SHEN Baotang State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology Shandong University of Science and TechnologyQingdao 266590China Key Laboratory of Unconventional Oil&Gas Development(China University of Petroleum(East China)) Ministry of EducationQingdao 266580China Safety Environmental Protection and Engineering Supervision CenterPetro China Tarim Oilfield CompanyKorla 841000China Research Institute of Oilfield Production China Oilfield Services LimitedTianjin 300451China

In order to fracture shale gas reservoir with carbon dioxide as the working fluid,laboratory experiments were firstly conducted to measure the influence of carbon dioxide immersion on shale rock's properties,and then the coupling mechanism between stress and seepage during hydraulic fracturing was simulated based on cohesive zone *** fracturing ability of carbon dioxide and water was also compared under the same working conditions,and finally sensitivity analysis(including elastic modulus of shale,filtration coefficient,pump rate and viscosity of carbon dioxide)were conducted based on field *** results show that,the elastic modulus of shale increased by 32.2%,the Poisson's ratio decreased by 40.3%and the compressive strength decreases by 22.9%after geothermal reaction with carbon dioxide under 30 MPa and 335.15 K for 2 *** with water fracturing,carbon dioxide fracturing induces longer fracture(increased by 25.3%)and narrower fracture(decreased to 40.8%).The fracture tends to get longer and narrower with increasing elastic modulus of *** filtration coefficient increases,the maximum width of fracture decreases significantly,whereas the length changes *** the length and maximum width of fracture increase with increasing pump rate,however the changing rate of length tends to *** influence of viscosity of carbon dioxide on both fracture width and length is negligible,which validates the stable feasibility of carbon dioxide fracturing in different formation conditions.

关键词： supercritical carbon dioxide fracturing shale gas mechanical properties simulation

基于液相色谱法对不同种类植物油中微量营养成分的测定与分析

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中国食品添加剂 2024年第9期35卷 214-222页

作者：马芮萍王雪娇沈莹萍张峻铭段筱筠周春红甘肃省产品质量监督检验研究院兰州730050

建立了高效液相色谱法测定不同类型植物油中乌发醇、菜油甾醇、岩藻甾醇、菜籽甾醇、豆甾醇、麦角甾醇、环阿屯醇、β-谷甾醇、角鲨烯的方法,同时采用GB 5009.82-2016《食品中维生素A、D、E的测定》中的第一法(荧光检测器)对植物油中的... 详细信息

建立了高效液相色谱法测定不同类型植物油中乌发醇、菜油甾醇、岩藻甾醇、菜籽甾醇、豆甾醇、麦角甾醇、环阿屯醇、β-谷甾醇、角鲨烯的方法,同时采用GB 5009.82-2016《食品中维生素A、D、E的测定》中的第一法(荧光检测器)对植物油中的维生素E进行了测定。结果表明:9种微量营养成分线性良好,检出限范围为0.3~4.0 mg/kg,定量限范围为1~12 mg/kg;加标回收率为69.3%~117.2%,RSD范围为0.71%~6.83%。7种不同类型植物油中均含有β-谷甾醇、菜油甾醇、乌发醇、角鲨烯、α-生育酚、β-生育酚、γ-生育酚、δ-生育酚,其含量各有不同。通过对不同种类植物油中植物甾醇、角鲨烯、维生素E的测定和分析,深入挖掘不同种类植物油中各自的特征成分和含量差异,提升其品牌影响力。

关键词：植物油液相色谱仪植物甾醇角鲨烯生育酚