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Microstructure evolution and properties of Cu-20Ni-20Mn alloy during aging process

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Transactions of Nonferrous Metals Society of China 2015年第10期25卷 3247-3251页

作者：谢伟滨王强松米绪军解国良刘冬梅高学成李洋北京有色金属研究总院有色金属材料制备加工国家重点实验室北京100088

The microstructure evolution and phase transformation of Cu-20Ni-20Mn（mass fraction,%） alloy at 450 °C were investigated by X-ray diffraction and transmission electron microscopy（TEM）.The variations of tensile strength,yield strength and hardness of this alloy during aging process were also *** results show that no significant variations of hardness and strength in the initial stage of aging,with a long incubation period,are observed at 450 °***,the ordered face-centered tetragonal（FCT） Ni Mn phase nucleates and grows up with prolonging the aging *** hardness and tensile strength of the alloy increase up to their maximum values with increasing the ordered particle size,i.e.,the strength of the alloy reaches 942 MPa after being aged at 450°C for *** main cause of the age-hardening is considered to be precipitation strengthening due to the ordered FCT-Ni Mn particles.

关键词： Cu-Ni-Mn alloy microstructure mechanical properties ordered phase

Electronic structure of single-crystalline graphene grown on Cu/Ni(111) alloy film

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Chinese Physics B 2019年第8期28卷 250-253页

作者： Xue-Fu Zhang Zhong-Hao Liu Wan-Ling Liu Xiang-Le Lu Zhuo-Jun Li Qing-Kai Yu Da-wei Shen Xiao-Ming xie State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information Technology (SIMIT)Chinese Academy of SciencesShanghai 200050China University of Chinese Academy of Sciences Beijing 100049China School of Physical Science and Technology Shanghai Tech UniversityShanghai 200031China CAS Center for Excellence in Superconducting Electronics (CENSE) Shanghai 200050China

Graphene with a Dirac cone-like electronic structure has been extensively studied because of its novel transport properties and potential application for future electronic *** epitaxially grown graphene,the process conditions and the microstructures are strongly dependent on various substrate materials with different lattice constants and interface *** angle-resolved photoemission spectroscopy,here we report an investigation of the electronic structure of single-crystalline graphene grown on Cu/Ni(111)alloy film by chemical vapor *** a relatively low growth temperature,graphene on Cu/Ni(111)exhibits a Dirac cone-like dispersion comparable to that of graphene grown on Cu(111).The linear dispersions forming Dirac cone are as wide as 2 e V,with the Fermi velocity of approximately 1.1×10^6 m/*** cone opens a gap of approximately 152 meV at the binding energy of approximately 304 *** findings would promote the study of engineering of graphene on different substrate materials.

关键词： single-crystal graphene electronic structure Cu/Ni(111)

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开放大学文化的四维解析及其耦合研究

现代远距离教育 2011年第2期 25-29页

作者：郑淑芬宋伟哈尔滨工程大学黑龙江哈尔滨150001

通过分析开放大学内涵和特点,提出开放大学文化由精神文化、管理文化、信息文化、创新文化四维组成,开放大学文化建设的优良与否与这四维文化的相互影响、相互促进存在着紧密关系。通过借鉴耦合理论,研究开放大学文化耦合实现的机理,并... 详细信息

通过分析开放大学内涵和特点,提出开放大学文化由精神文化、管理文化、信息文化、创新文化四维组成,开放大学文化建设的优良与否与这四维文化的相互影响、相互促进存在着紧密关系。通过借鉴耦合理论,研究开放大学文化耦合实现的机理,并对它们之间的相互作用进行分析,在此基础上提出推进开放大学文化耦合的对策建议,为开放大学建设提供参考。

关键词：开放大学文化四维解析耦合

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二氢嘧啶酶样蛋白3在肿瘤中的表达

泌尿外科杂志(电子版) 2024年第2期16卷 82-88页

作者：谢峻施鸿金毛秋玉陈俊豪黄应龙韦海荣张贵福王海峰昆明医科大学第二附属医院泌尿外科云南省滇南中心医院(红河州第一人民医院)泌尿外科

二氢嘧啶酶样蛋白3 (dihydropyrimidinase-like 3,DPYSL3)又称塌陷反应调节蛋白4 (collapse response mediator protein 4,CRMP4),是一种在神经系统中高表达的胞质磷蛋白。其不仅参与细胞伪足中肌动蛋白的组成,也用于组装细胞骨架,还与... 详细信息

二氢嘧啶酶样蛋白3 (dihydropyrimidinase-like 3,DPYSL3)又称塌陷反应调节蛋白4 (collapse response mediator protein 4,CRMP4),是一种在神经系统中高表达的胞质磷蛋白。其不仅参与细胞伪足中肌动蛋白的组成,也用于组装细胞骨架,还与细胞上皮-间质转化(epithelial-mesenchymal transition,EMT)过程有关,这些特性可能与肿瘤增殖与转移功能有关。近年来有研究表明,DPYSL3参与多种癌细胞的增殖与侵袭过程,例如前列腺癌、膀胱癌、胃癌与肝癌等。然而,DPYSL3在不同肿瘤中的表达与预后存在明显的异质性。因此,进行DPYSL3在肿瘤表达水平的研究有望成为在不同肿瘤恶性程度与诊断过程中的生物标志物,从而提高肿瘤诊断率与患者预后水平。本文对DPYSL3在不同肿瘤中的表达、生物学功能及其对肿瘤的诊断、治疗及预后价值进行总结与探索,为肿瘤研究提供新思路。

关键词：二氢嘧啶酶样蛋白3 塌陷反应调节蛋白4 上皮-间质转化肿瘤细胞骨架

湘中矿集区杨家山石英脉白钨矿床的白云母^(40)Ar-^(39)Ar和LA-ICP-MS锡石U-Pb年龄及其地质意义

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岩石学报 2021年第3期37卷 794-804页

作者：张志远谢桂青李伟河北地质大学河北省战略性关键矿产资源重点实验室石家庄050031 中国地质大学科学研究院北京100083 中国地质科学院矿产资源研究所自然资源部成矿作用与资源评价重点实验室北京100037

杨家山中型石英脉型白钨矿床位于华南湘中低温锑金钨矿集区。白钨矿石英脉产于晚泥盆世黑云母二长花岗岩和新元古界板岩中,是全球为数不多的与花岗岩有关的石英脉白钨矿床,其成矿机制还不清楚。本文开展了与白钨矿共生的锡石的LA-ICP-M... 详细信息

杨家山中型石英脉型白钨矿床位于华南湘中低温锑金钨矿集区。白钨矿石英脉产于晚泥盆世黑云母二长花岗岩和新元古界板岩中,是全球为数不多的与花岗岩有关的石英脉白钨矿床,其成矿机制还不清楚。本文开展了与白钨矿共生的锡石的LA-ICP-MS微区原位U-Pb同位素测年,获得206Pb/238U加权平均年龄值为410.4±5.7Ma(MSWD=1.5,n=24)。同时,获得了与白钨矿共生的白云母的^(40)Ar-^(39)Ar同位素坪年龄为395.4±3.2Ma,等时线年龄398.2±4.4Ma,这些定年结果暗示杨家山钨矿床形成于晚泥盆世,与黑云母二长花岗岩的成岩时代在误差范围内一致。结合前人的年代成果,暗示湘中矿集区发育一期晚泥盆世的钨金成矿事件。通过以上研究,不仅能深化湘中矿集区钨金矿床的成矿规律认识,而且可以为找矿勘查取得突破提供重要的理论支撑。

关键词：白云母40Ar-39Ar同位素年龄锡石LA-ICP-MS U-Pb年龄杨家山钨矿床湘中矿集区华南

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梯级水光蓄互补发电系统实时协调控制策略

电网技术 2021年第3期45卷 871-880页

作者：王子伊王玮马伟陈哲吴学智唐芬国家能源主动配电网技术研发中心(北京交通大学) 北京市海淀区100044 奥尔堡大学工程与科学学院丹麦奥尔堡市9220

梯级水光蓄互补发电系统将梯级小水电(cascade small hydropowerplant,CSHP)、分布式光伏(photovoltaic,PV)和抽水蓄能相结合,可平抑PV功率波动、提高其可调度性。针对这种互补发电系统的实时控制问题,首先提出了基于经验模态分解法(emp... 详细信息

梯级水光蓄互补发电系统将梯级小水电(cascade small hydropowerplant,CSHP)、分布式光伏(photovoltaic,PV)和抽水蓄能相结合,可平抑PV功率波动、提高其可调度性。针对这种互补发电系统的实时控制问题,首先提出了基于经验模态分解法(empirical mode decomposition,EMD)的全功率变速恒频抽蓄机组(full size converter based variable speed constant frequency pumped storage unit,FSC-VSCFPSU)平抑PV功率波动控制策略,根据经EMD法提取的PV功率波动的高低频分量,自适应确定平抑目标,快速为FSCVSCFPSU确定所需的补偿功率。其次,提出了基于CSHP与FSC-VSCFPSU协调控制的互补发电系统跟踪调度计划策略,在平抑PV功率波动控制策略处理的基础上,根据调度计划协调分配CSHP及FSC-VSCFPSU的输出功率,以最小化系统出力与调度计划的偏差,确保系统平稳跟踪调度计划运行。此外,还给出了基于变速运行模式的FSCVSCFPSU虚拟同步机控制策略,通过模拟同步机特性来控制机组的全功率变流器运行,实现FSC-VSCFPSU的快速功率响应,保证平抑PV功率波动控制策略及跟踪调度计划策略的有效执行。通过实例仿真计算和分析验证了所提控制策略的有效性和可行性。

关键词：分布式光伏梯级小水电变速恒频抽蓄机组光伏功率波动经验模态分解算法互补发电调度计划协调控制策略

Sputtered SnO_(2)as an interlayer for efficient semitransparent perovskite solar cells

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Chinese Physics B 2022年第11期31卷 67-73页

作者： Zheng Fang Liu Yang Yongbin Jin Kaikai Liu Huiping feng Bingru Deng Lingfang Zheng Changcai Cui Chengbo Tian Liqiang xie Xipeng Xu Zhanhua wei MOE Engineering Research Center for Brittle Materials Machining Institute of Manufacturing EngineeringCollege of Mechanical Engineering and AutomationHuaqiao UniversityXiamen 361021China Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing Institute of Luminescent Materials and Information DisplaysCollege of Materials Science and EngineeringHuaqiao UniversityXiamen 361021China

SnO_(2)is widely used as the electron transport layer(ETL)in perovskite solar cells(PSCs)due to its excellent electron mobility,low processing temperature,and low *** the most common way of preparing the SnO_(2)ETL is spincoating using the corresponding colloid ***,the spin-coated SnO_(2)layer is sometimes not so compact and contains pinholes,weakening the hole blocking ***,a SnO_(2)thin film prepared through magnetron-sputtering was inserted between ITO and the spin-coated SnO_(2)acted as an *** strategy can combine the advantages of efficient electron extraction and hole blocking due to the high compactness of the sputtered film and the excellent electronic property of the spin-coated SnO_(2).Therefore,the recombination of photo-generated carriers at the interface is significantly *** a result,the semitransparent perovskite solar cells(with a bandgap of 1.73 eV)based on this double-layered SnO_(2)demonstrate a maximum efficiency of 17.7%(stabilized at 17.04%)with negligible ***,the shelf stability of the device is also significantly improved,maintaining 95%of the initial efficiency after 800-hours of aging.

关键词： semitransparent perovskite solar cells sputtering interlayer hole blocking

Remove the water-induced traps toward improved performance in organic solar cells

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Science China Materials 2021年第11期64卷 2629-2644页

作者： Mumin Shi Tao Wang Rui Sun Qiang Wu Dandan Pei Hui Wang Wenyan Yang wei Wang Yao Wu Guohua xie Tao Wang Long Ye Jie Min The Institute for Advanced Studies Wuhan UniversityWuhan 430072China School of Materials Science and EngineeringTianjin UniversityTianjin 300072China School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China Hubei Key Lab on Organic and Polymeric Optoelectronic Materials Department of ChemistryWuhan UniversityWuhan 430072China Beijing National Laboratory for Molecular Sciences Beijing 100190China Key Laboratory of Materials Processing and Mold(Zhengzhou University) Ministry of EducationZhengzhou 450002China

Clusters of water molecules have low ionization energies because of stabilization of charge from the dipole moment of surrounding molecules,and thus can form potential traps resulting in the undesirable photovoltaic performance in organic solar cells(OSCs).Herein,we demonstrated a solvent-water evaporation(SWE)strategy,which can effectively remove the water-induced traps that are omnipresent in photoactive layers,leading to a significant improvement in device performance.A higher power conversion efficiency of 17.10%and a better device photostability are achieved by using this SWE method,as compared with the untreated binary PM6:Y6 system(15.83%).We highlight the water-related traps as a limiting factor for carrier transport and extraction properties,and further reveal the good universality of the SWE strategy applied into *** addition,organic light-emitting diodes and organic field-effect transistors are investigated to demonstrate the applicability of this SWE *** strategy presents a major step forward for advancing the field of organic electronics.

关键词： non-fullerene acceptor water-induced traps charge transport device stability organic semiconductors

规模化牧场智能化设备应用及优化措施——以温氏乳业高山牧场为例

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中国奶牛 2024年第5期 49-54页

作者：潘妍桦戚晓鸿李扬蒋兴东周阳冯观泉谢伟文郭勇庆华南农业大学动物科学学院广州510642 广东温氏乳业股份有限公司肇庆526238

近年来,随着我国各大牧场的奶牛存栏规模不断扩增、单产水平不断提高,智能化设备在规模化牧场中的应用普及度也随之提高。本文以温氏乳业高山牧场为例,详细介绍了饲喂设备、挤奶设备、清粪设备、环境调控设备及奶牛行为监控设备等在规... 详细信息

近年来,随着我国各大牧场的奶牛存栏规模不断扩增、单产水平不断提高,智能化设备在规模化牧场中的应用普及度也随之提高。本文以温氏乳业高山牧场为例,详细介绍了饲喂设备、挤奶设备、清粪设备、环境调控设备及奶牛行为监控设备等在规模化牧场中的应用现状,同时也提出了智能化设备在实际生产中存在的问题,以期为奶牛产业相关人员提供参考。

关键词：奶牛智能化设备应用