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Formation Mechanism of Curved Martensite Structures in Cu-based Shape Memory Alloys

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Journal of Materials Science & Technology 2000年第1期16卷 79-81页

作者： Yujun BAI, Qiquan shi,Guili geng, Dongsheng SUN and Xiufang BIAN (Institute of Materials Engineering, Shandong University of Technology, Jinan 250061, China) Institute of Materials Engineering Shandong University of Technology Jinan 250061 China

The curved martensite structures have been observed in CuZnAI-based shape memory alloys by both transmission electron microscope and optical microscope. It was found that the curved martensite structures observed in as-solution treated, as-aged and as-trained alloys usually occurred around dislocation tangles or precipitate, at the plate boundary or grain boundary, and when the growing plates collided with each other or alternate mutually.

关键词： Formation Mechanism of Curved Martensite Structures in Cu-based Shape Memory Alloys Cu

Porcine circovirus 3 capsid protein induces autophagy in HEK293T cells by inhibiting phosphorylation of the mammalian target of rapamycin

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2020年第7期21卷 560-570页

作者： shi-chao geng Xiao-liang LI Wei-huan FANG Institute of Preventive Veterinary Medicine Zhejiang UniversityHangzhou 310058China Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine Hangzhou 310058China

Porcine circovirus 3(PCV3)has been detected in major pig-producing countries around the world since its first report in the US in *** current studies have focused on epidemiological investigations and detection methods of PCV3 because of lack of live virus strains for research on its pathogenesis in porcine cells or even in *** constructed a recombinant plasmid pCMV-Cap carrying the PCV3 orf2 gene to investigate the effects of capsid(Cap)protein expression on autophagic response in human embryonic kidney cell line 293 T(HEK293 T).We demonstrate that PCV3 Cap protein induced complete autophagy shown as formation of autophagosomes and autophagosome-like vesicles as well as LC3-II conversion from LC3-I via inhibiting phosphorylation of the mammalian target of rapamycin(mTOR)in HEK293 T *** ubiquitin–proteasome pathway is also involved in the autophagy *** findings provide insight for further exploration of PCV3 pathogenetic mechanisms in porcine cells.

关键词： Porcine circovirus 3(PCV3) Capsid(Cap)protein Autophagy

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超高层异形综合体防雷设计研究

建筑技术开发 2024年第5期51卷 24-26页

作者：马开峰米京献陈醉陈乾坤李世庚中国建筑第二工程局有限公司华南分公司广东深圳518000

针对现阶段超高层异形建筑防雷接地设计进行了总结和分析。现场踏勘了本项目及其周边400 m范围内的建筑坐落情况,分析了本项目防雷接地的设计方案,总结了异形建筑防雷接地所应考虑的等效面积、防雷接地措施等必要条件,通过计算年预计雷... 详细信息

针对现阶段超高层异形建筑防雷接地设计进行了总结和分析。现场踏勘了本项目及其周边400 m范围内的建筑坐落情况,分析了本项目防雷接地的设计方案,总结了异形建筑防雷接地所应考虑的等效面积、防雷接地措施等必要条件,通过计算年预计雷击次数和查询各地防雷办参数,本项目展开防雷工程设计研究,研究方式及结果将对项目自身防雷设计具有复核及完善价值,并增强了建筑物防雷可靠性。

关键词：超高层建筑异形综合体雷击风险防雷

基于网络药理学、分子对接研究肉苁蓉-淫羊藿-骨碎补治疗骨质疏松的作用机制

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医学信息 2024年第13期37卷 1-6页

作者：吴鹏杨喜高尚戴丽娜王星马志敏耿世佳内蒙古医科大学基础医学院内蒙古医科大学第二附属医院影像科

目的采用网络药理学方法研究肉苁蓉-淫羊藿-骨碎补对骨质疏松的作用机制。方法采用中药系统药理学数据库与分析平台（TCMSP）查找肉苁蓉-淫羊藿-骨碎补主要成分及靶点，采用Geen Cards数据库查找骨质疏松的靶基因。应用Venny2.1.0取... 详细信息

目的采用网络药理学方法研究肉苁蓉-淫羊藿-骨碎补对骨质疏松的作用机制。方法采用中药系统药理学数据库与分析平台（TCMSP）查找肉苁蓉-淫羊藿-骨碎补主要成分及靶点，采用Geen Cards数据库查找骨质疏松的靶基因。应用Venny2.1.0取基因交集，采用String数据库进行蛋白互作网络分析，Cytoscape构建活性-成分-靶点网络图，David数据库进行GO富集分析和KEGG通路分析，并进行分子对接。结果肉苁蓉-淫羊藿-骨碎补有效成分46种，与骨质疏松共同的靶点有225个，有效成分中suchilactone、quercetin、luteolin、kaempferol、eriodictyol、eriodyctiol、naringenin为核心成分，AKT1、ERS2、MMP-9、AR、mTOR为核心靶点；GO富集显示得到489个生物学过程（BP）、53个细胞组成（CC）、100个分子功能（MF）。KEGG结果显示得到癌症通路、PI3K-Akt信号通路、雌激素信号通路等149条。分子对接结果显示MMP-9与suchilactone、quercetin、luteolin、kaempferol能较好地结合。结论肉苁蓉-淫羊藿-骨碎补作用于骨质疏松是多靶点的，药物有效成分能从多途径调控骨质疏松相关靶标，治疗骨质疏松。

关键词：肉苁蓉淫羊藿骨碎补网络药理学分子对接作用机制

Manipulator tracking technology based on FSRUKF

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Journal of Systems Engineering and Electronics 2024年第2期35卷 473-484页

作者： shi Guoqing ZHANG Boyan ZHANG Jiandong YANG Qiming HUANG Xiaofeng QUE Jianyao PU Junwei geng Xiutang School of Electronics and Information Northwestern Polytechnical UniversityXi’an 710072China Northwest Institute of Mechanical&Electrical Engineering Xianyang 712000China

Aiming at the shortcoming that the traditional industrial manipulator using off-line programming cannot change along with the change of external environment,the key technologies such as machine vision and manipulator control are studied,and a complete manipulator vision tracking system is ***,Denavit-Hartenberg(D-H)parameters method is used to construct the model of the manipulator and analyze the forward and inverse kinematics equations of the *** the same time,a binocular camera is used to obtain the threedimensional position of the ***,in order to make the manipulator track the target more accurately,the fuzzy adaptive square root unscented Kalman filter(FSRUKF)is proposed to estimate the target ***,the manipulator tracking system is built by using the position-based visual *** simulation experiments show that FSRUKF converges faster and with less error than the square root unscented Kalman filter(SRUKF),which meets the application requirements of the manipulator tracking system,and basically meets the application requirements of the manipulator tracking system in the practical experiments.

关键词： square root unscented Kalman filter(SRUKF) fuzzy inference manipulator visual servo

Preparation and characterization of carbonyl iron soft magnetic composites with magnesioferrite insulating coating layer

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Transactions of Nonferrous Metals Society of China 2020年第11期30卷 3067-3077页

作者： shi-geng LI Ru-tie LIU Xiang XIONG State Key Laboratory of Powder Metallurgy Central South UniversityChangsha 410083China Department of Materials and Chemistry Engineering Pingxiang UniversityPingxiang 337000China

Spherical carbonyl iron(Fe)powders were coated with magnesioferrite(MgFe2O4)insulating coating layer and then mixed with epoxy-modified silicone resin(ESR).Soft magnetic composites(SMCs)were fabricated by compaction of the coated powders and annealing *** electron microscopy(TEM),scanning electron microscopy(SEM),energy dispersive spectroscopy(EDS),X-ray diffractometry(XRD)and X-ray photoelectron spectroscopy(XPS)revealed that the MgFe2O4 layer was coated on the surface of the iron *** magnetic properties of SMCs were determined using a vibrating sample magnetometer and an auto testing system for magnetic *** results showed that the SMCs prepared at 800 MPa and 550℃ exhibited a significant core loss of 167.5 W/kg at 100 kHz and 50 mT.

关键词： soft magnetic composites in-situ oxidation preparation magnesioferrite insulating coating layer annealing treatment magnetic properties

Actional Mechanism of Trifluoroacetic Acid for the Separation of Biopolymers by Reversed-phase Liquid Chromatography

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Chemical Research in Chinese Universities 1992年第3期8卷 207-211页

作者： shi Ya-li and geng Xin-du (Department of Chemistry, Northwest University, Xi’an, 710069)

The present paper covers the actional mechanism of trifluoroacetic acid for the separation of biopolymers investigated by using the parameters of stoichiometric displacement model for retention(SDM-R) in reversed-phase liquid chromatography. It was found that the trifluoroacetic acid(TFA) may participate in, or stimulate the association among displacing agent molecules in mobile phase, and decrease the affinity of both the associate molecules of the displacing agent and the TFA-protein ion-pairing. The former dominates over the separation selectivity of biopolymers as the concentration of TFA is lower than a given value, and the two contrary functions partly offset to each other and the latter dominates as its concentration is greater than the given value.

关键词： Trifluoroacetic acid Actional mechanism Reversed-phase liquid chroma-tography Separation Biopolymers

Disposable circumcision suture device： clinical effect and patient satisfaction

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Asian Journal of Andrology 2014年第3期16卷 453-456页

作者： Bo-Dong Lv shi-geng Zhang Xuan-Wen Zhu Jie Zhang Gang Chen Min-Fu Chen Hong-Liang Shen Zai-Jun Pei Zhao-Dian Chen The First Affiliated Hospital of Zhejiang University Zhejiang Hangzhou Departments of Urology The Second Affiliated Hospital of Zhejiang Chinese Medical University Hangzhou Department of Urology People's Hospital of Anji County Huzhou Department of Urology Traditional Chinese Medical Hospital of Deqing County Huzhou Department of Urology Traditional Chinese Medical Hospital of Tongxiang County Jiaxing China

In our experience patients undergoing circumcision are mostly concerned about pain and penile appearances. We conducted a prospective randomized trial to assess the benefits of a new disposable circumcision suture device （DCSD）. A total of 942 patients were equally divided into three groups （conventional circumcision, Shang ring and disposable suture device group）. Patients in the DCSD group were anesthetized with compound 5% lidocaine cream, the others with a 2% lidocaine penile block. Operation time, intra-operative blood loss, incision healing time, intra-operative and post-operative pain, the penile appearance and overall satisfaction degree were measured. Operation time and intra-operative blood loss were significantly lower in the Shang ring and suture device groups compared to the conventional group （P 〈 0.001）. Intra-operative pain was less in the suture device group compared With the other two groups （P 〈 0.001）; whereas post-operative pain was higher in the conventional group compared to the other two groups （P 〈 0.001）. Patients in the suture device （80.57%） and Shang ring （73,57%） groups were more satisfied with penile appearances compared with the conventional circumcision group （20.06%, P 〈 0.05）. Patients in suture device group also healed markedly faster than the conventional group （P 〈 0.01）. The overall satisfaction rate was better in the suture device group （78.66%） compared with the conventional （47.13%） and Shang ring （50.00%） groups （P 〈 0.05）. The combination of DCSD and lidocaine cream resulted in shorter operation and incision healing times, reduced intra-operative and post-operative pain and improved patient satisfaction with the cosmetic appearances.

关键词： circumcision disposable circumcision suture device patient satisfaction penis appearance pre-operative and post-operative pain Shang ring ~

The effects of in ovo feeding of selenized glucose on liver selenium concentration and antioxidant capacity in neonatal broilers

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Chinese Chemical Letters 2024年第6期35卷 312-315页

作者： Jiahui Li Qiao shi Ying Xue Mingde Zheng Long Liu Tuoyu geng Daoqing Gong Minmeng Zhao Jiangsu Key Laboratory of Animal genetic Breeding and Molecular Design College of Animal Science and TechnologyYangzhou UniversityYangzhou 225009China Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China Yangzhou UniversityYangzhou 225009China

Selenium is an essential trace element for humans and *** the active center of selenoproteins,the addition of selenium is beneficial to enhance the antioxidant ***,the high cost limits the application of organic Se in agriculture animal *** glucose(SeGlu)is a newly invented organoselenium material with good stability,low toxicity and low *** assay found that SeGlu was able to increase selenium deposition in liver of newborn broilers,and enhance the antioxidant capacity of liver by elevating the activities of antioxidant enzymes such as total superoxide dismutase and glutathione *** paper as the first example clarifying the mechanism of SeGlu to enhance the antioxidant ability of chicks,shows that SeGlu can be used as an organic selenium enrichment additive for early nutrition of *** a cross-discipline study involving chemistry,biology and agriculture animal science,the work may be beneficial for studies in related fields and prompt the development of the selenium science.

关键词： Selenized glucose In ovo feeding Antioxidant capacity Selenium Broiler