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Space Materials Science in China:Ⅱ.Ground-based Researches and Academic Activities

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空间科学学报 2020年第5期40卷 950-955页

作者： PAN Mingxiang WANG Weihua FAN Shuqian ZHANG Qi PAN Xiuhong DENG Weijie HU Liang WEI Bingbo WANG Haipeng YIN Zhigang fang jinghong YU Jianding ZHANG Xingwang YUAN Zhangfu JIANG Hongxiang ZHAO Jiuzhou WANG Gong Institute of Physics Chinese Academy of SciencesBeijing 100191 School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049 Songshan Lake Materials Lab. Dongguan 523808 Chongqing Institute of Green and Intelligent Technology Chinese Academy of SciencesChongqing 400714 Shanghai Institute of Ceramics Chinese Academy of SciencesShanghai 201899 Laboratory of Space Materials Science and Technology Northwestern Polytechnical UniversityXi’an 710072 Key Laboratory of Semiconductor Materials Science Institute of SemiconductorsChinese Academy of SciencesBeijing 100083 Collaborative Innovation Center of steel technology University of Science and Technology BeijingBeijing 100083 College of Engineering Peking UniversityBeijing 100871 Institute of Metal Research Chinese Academy of SciencesShenyang 110016 CAS Key Laboratory of Space Manufacturing Technology Technology and Engineering Center for Space UtilizationChinese Academy of SciencesBeijing 100094

Activities of space materials science research in China have been continuously supported by two main national *** is the China Space Station(CSS)program since 1992,and the other is the Strategic Priority Program(SPP)on Space Science since *** CSS plan in 2019,eleven space materials science experimental projects were officially approved for execution during the construction of the space *** the SPP Phase Ⅱ launched in 2018,seven pre-research projects are deployed as the first batch in 2018,and one concept study project in *** pre-research projects will be cultivated as candidates for future selection as space experiment projects on the recovery of scientific experimental satellites in the future.A new apparatus of electrostatic levitation system for ground-based research of space materials science and rapid solidification research has been developed under the support of the National Natural Science Foundation of *** order to promote domestic academic activities and to enhance the advancement of space materials science in China,the Space Materials Science and Technology Division belong to the Chinese Materials Research Society was established in *** also organized scientists to write five review papers on space materials science as a special topic published in the journal Scientia Sinica to provide valuable scientific and technical references for Chinese researchers.

关键词： Additive manufacturing Aerogel preparation Electrostatic levitation system Crystal growth Solidification Academic activities of space materials science

原位聚合阻燃共聚酯/磷酸盐玻璃纳米复合材料结构与性能研究

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化工新型材料 2016年第12期44卷 49-52页

作者：付思聪方楷马敬红龚静华东华大学材料科学与工程学院纤维材料国家改性重点实验室上海201620

以2-羧乙基苯基次磷酸(CEPPA)为第三单体,通过原位聚合法制备磷系阻燃共聚酯(FRPET)/磷酸盐玻璃(P-glass)纳米复合材料,并通过元素分析、DSC、TGA、极限氧指数、垂直燃烧等方法对其结构和性能进行了研究。结果表明:在原位聚合过程中,P-g... 详细信息

以2-羧乙基苯基次磷酸(CEPPA)为第三单体,通过原位聚合法制备磷系阻燃共聚酯(FRPET)/磷酸盐玻璃(P-glass)纳米复合材料,并通过元素分析、DSC、TGA、极限氧指数、垂直燃烧等方法对其结构和性能进行了研究。结果表明:在原位聚合过程中,P-glass能在基体内呈纳米尺寸均匀分散,并与阻燃共聚酯分子链发生相互作用。P-glass的原位添加有利于提高材料的耐燃性并抑制其熔融滴落现象,特性黏度达0.64dL/g、FRPET/P-glass磷含量为8.194mg/g、Pglass含量1%以上时,FRPET/P-glass垂直燃烧性能级别达到FV-0级,极限氧指数达30.9%。

关键词：磷酸盐玻璃阻燃共聚酯抗熔滴纳米复合材料

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拖拉机离合器接合过程仿真与寿命设计

拖拉机与农用运输车 2005年第1期32卷 24-25,28页

作者：田全忠张曙彩王志超范京红王义平洛阳拖拉机研究所洛阳471039

建立拖拉机机组、发动机离合器和拖拉机机组外阻力矩的数学模型,进行离合器接合过程仿真,以便准确地计算出滑磨功,并获取相应的仿真曲线,为拖拉机离合器寿命设计提供依据。

关键词：拖拉机离合器接合过程仿真寿命设计滑磨功

GaFeO_(3)∶Mg晶体的生长及磁学性能研究

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人工晶体学报 2024年第10期53卷 1699-1704页

作者：王文凯潘秀红胡雨青刘学超陈小红陈锟方婧红贺欢倪津崎上海理工大学材料与化学学院上海200093 中国科学院上海硅酸盐研究所上海200050 安徽工业大学材料科学与工程学院马鞍山243002

本文利用光学浮区法生长出了直径为7 mm的铁电单晶Mg_(x)Ga_(1-x)FeO_(3)(x=0.02、0.05、0.07和0.10),研究了Mg^(2+)对GaFeO_(3)(GFO)晶体饱和磁化强度和磁性转变温度的作用。通过XRD测试了晶体的结构和物相,结果显示,所有制备的晶体样... 详细信息

本文利用光学浮区法生长出了直径为7 mm的铁电单晶Mg_(x)Ga_(1-x)FeO_(3)(x=0.02、0.05、0.07和0.10),研究了Mg^(2+)对GaFeO_(3)(GFO)晶体饱和磁化强度和磁性转变温度的作用。通过XRD测试了晶体的结构和物相,结果显示,所有制备的晶体样品对应标准晶体卡库GFO(PDF#76-1005)的衍射特征,无其他杂相出现。XRD精修结果表明,该晶体结构为正交结构,空间群为Pna 2_(1),晶格常数和晶胞体积随着Mg^(2+)掺杂量的增加,呈现先增加后减小的趋势。通过综合物性测量系统研究了晶体的磁性能,结果表明,磁性转变温度和饱和磁化强度随着Mg^(2+)掺杂量的增加,同样呈现先增加后减小的趋势。当Mg^(2+)掺杂量x=0.07时,磁性转变温度和饱和磁化强度达到最大,分别为187.82 K、8.75 emu/g,达到了掺杂改性的目的。

关键词：铁电单晶 GaFeO_(3)∶Mg 光学浮区法饱和磁化强度磁性转变温度矫顽场

光催化燃料电池中污染物净化与重金属还原的协同作用

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聊城大学学报（自然科学版） 2023年第6期36卷 48-56页

作者：龙腾文王智皓何颖超方敬红冯建光孙琼青岛科技大学材料科学与工程学院山东青岛266042

光催化燃料电池是一种集光催化、光电转换和燃料电池于一体的新型装置。制备了聚吡咯(PPy)/ZIF-67复合材料,将其作为阴极材料组装成双室光催化电池,在阳极室中引入过氧化氢(H_(2)O_(2))以协同降解活性艳红(X3B),在阴极室引入甲酸增强对... 详细信息

光催化燃料电池是一种集光催化、光电转换和燃料电池于一体的新型装置。制备了聚吡咯(PPy)/ZIF-67复合材料,将其作为阴极材料组装成双室光催化电池,在阳极室中引入过氧化氢(H_(2)O_(2))以协同降解活性艳红(X3B),在阴极室引入甲酸增强对六价铬离子[Cr(Ⅵ)]的还原效果,同时产生持续的电能输出。自由基淬灭实验证明,H_(2)O_(2)的存在可以在单位时间内让阳极传输更多的光生电子到阴极,导致在Cr(Ⅵ)还原反应中,甲酸优先发挥助催化剂的效果和ZIF-67反应生成络合物,加快Cr(Ⅵ)的还原。PPy/ZIF-67作为一种价廉、低毒、高效的PFC阴极材料,在废水处理领域有着广阔的应用前景。

关键词：光催化燃料电池 PPy/ZIF-67 有机物降解 Cr(Ⅵ)还原甲酸助催化剂

Investigation on the Long Term Operational Stability of Underground Energy Storage in Salt Rock

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Energy Engineering 2023年第1期120卷 221-243页

作者： Jun Zhou Shijie fang jinghong Peng Qing Li Guangchuan Liang Petroleum Engineering School Southwest Petroleum UniversityChengduChina Oil&Gas Sales Center of Sinopec Southwest Oil&Gas Company ChengduChina

Underground energy storage is an important function of all energy supply systems,and especially concerning the seemingly eternal imbalance between production and *** rock underground energy storage,for one,is widely applied in both traditional and renewable energy fields;and this particular technique can be used to store natural gas,hydrogen,and compressed ***,resource diversification and structural complexity make the supply system increasingly uncertain with the passing years,leading to great challenges for energy storage facilities in the present,and perhaps going into the future as ***,it is necessary to research the operation stability of underground energy storage *** this paper,a stability evaluation index system of Underground Gas Storage(UGS)is constructed with natural gas as the main medium,according to FLAC 3D cavity creep simulation software,along with fuzzy membership function to comprehensively determine the impact factor scoring model;the subjective weight is calculated based on the improved Analytic Hierarchy Process(AHP),the objective weight is calculated by the Entropy Weight Method(EWM),the combined constant weight is obtained by combining the variance maximization theory,and introducing the variable weight theory to obtain a more accurate combined variable ***,with this all being considered and accounted for,and with the four different conditions designed for UGS deployment case analysis and verification taken into consideration,the combined variable weight evaluation achieved excellent results;compared with the traditional constant weight method,in fact,the new evaluation results are more rigorous and objective.

关键词： Improved AHP Entropy Weight Method(EWM) combination variable weight interlayer cavern creep simulation index scoring model

Recent development of aspiration pump in the aspiration thrombectomy system

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Medicine in Novel Technology and Devices 2024年第2期22卷 1-8页

作者： Chen Wei Jing Dong Hongyi Yang jinghong Shi Huihui fang Yangjie Zuo Yubing Shi The Second Clinical College of Medicine Shaanxi University of Chinese MedicineXianyangShaanxi ProvinceChina Department of Cardiology the Second Affiliated Hospital of Shaanxi University of Chinese MedicineXianyangShaanxi ProvinceChina Institute of Integrative Medicine Shaanxi University of Chinese MedicineXianyangShaanxi ProvinceChina School of Medical Technology Shaanxi University of Chinese MedicineXianyangShaanxi ProvinceChina School of Engineering Staffordshire UniversityStoke-on-TrentStaffordshireUK

Vascular embolic diseases are associated with blockage of blood supply to vital organs and thus are *** thrombectomy is becoming the primary choice for revascularization in the treatment of vascular occlusions *** the power source in the aspiration thrombectomy procedure,the aspiration pump directly influences the outcome of the *** research surveyed the current technical developments of the aspiration pump in China through reviewing information obtained from the patent database and technical literatures,commented on the issues in the current patent designs,and gave suggestions for future design *** study can be used as a reference for researchers and developers of medical devices besides the neurosurgeons.

关键词： Aspiration pump Thrombus Thrombectomy Vascular embolic diseases Aspiration thrombectomy

U(1)Lμ-Lτ breaking phase transition, muon g–2, dark matter, collider, and gravitational wave

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Chinese Physics C 2024年第2期48卷 26-35页

作者：王杰马景鸿高静韩小芳王磊 Department of Physics Yantai UniversityYantai 264005China

Combining the dark matter and muon g-2 anomaly,we study the U(1)Lμ-Lτbreaking phase transition,gravitational wave spectra,and direct detection at the LHC in an extra U(1)Lμ-Lτgauge symmetry extension of the standard *** new fields include vector-like leptons(E1,E2,N),the U(1)Lμ-Lτbreaking scalar S,and the gauge boson Z’,as well as the dark matter candidate XI and its heavy partner XR.A joint explanation of the dark matter relic density and muon g-2 anomaly excludes the region where both min(mE1,mE2,mN,mXR)and min(mZ’,mS)are much larger than *** the parameter space accommodating the DM relic density and muon g-2 anomaly,the model can achieve a first-order U(1)Lμ-Lτbreaking phase transition,whose strength is sensitive to the parameters of the Higgs *** corresponding gravitational wave spectra can reach the sensitivity of *** addition,the direct searches at the LHC impose stringent bounds on the mass spectra of the vector-like leptons and dark matter.

关键词： phase transition dark matter collider D0I:10.1088/1674-1137/ad0f89

Excitatory somatostatin interneurons in the dentate gyrus drive a widespread seizure network in cortical dysplasia

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Signal Transduction and Targeted Therapy 2023年第6期8卷 3111-3122页

作者： Yang Zheng Cenglin Xu Jinyi Sun Wenjie Ming Sijie Dai Yuying Shao Xiaoyun Qiu Menghan Li Chunhong Shen jinghong Xu Fan Fei Jiajia fang Xuhong Jiang Guoqing Zheng Weiwei Hu Yi Wang Shuang Wang Meiping Ding Zhong Chen Department of Neurology Zhejiang Provincial Hospital of Chinese MedicineThe First Affiliated Hospital of Zhejiang Chinese Medical UniversityHangzhou310060China Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province School of Pharmaceutical SciencesZhejiang Chinese Medical UniversityHangzhou310053China Institute of Pharmacology and Toxicology College of Pharmaceutical SciencesZhejiang UniversityHangzhou310058China Epilepsy Center Department of NeurologySecond Affiliated Hospital Zhejiang University School of MedicineHangzhou310009China Department of Neurology Fourth Affiliated Hospital of Zhejiang University School of MedicineYiwu322000China

Seizures due to cortical dysplasia are notorious for their poor prognosis even with medications and surgery,likely due to the widespread seizure *** studies have primarily focused on the disruption of dysplastic lesions,rather than remote regions such as the ***,we first quantified the epileptogenicity of the hippocampus in patients with late-stage cortical *** further investigated the cellular substrates leading to the epileptic hippocampus,using multiscale tools including calcium imaging,optogenetics,immunohistochemistry and *** the first time,we revealed the role of hippocampal somatostatin-positive interneurons in cortical dysplasia-related ***-positive were recruited during cortical dysplasia-related ***,optogenetic studies suggested that somatostatin-positive interneurons paradoxically facilitated seizure *** contrast,parvalbumin-positive interneurons retained an inhibitory role as in *** recordings and immunohistochemical studies revealed glutamate-mediated excitatory transmission from somatostatin-positive interneurons in the dentate *** together,our study reveals a novel role of excitatory somatostatin-positive neurons in the seizure network and brings new insights into the cellular basis of cortical dysplasia.

关键词： somatostatin dysplasia seizure