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覆膜铝片盖板结构对PCB机械钻孔性能的影响

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印制电路信息 2024年第9期32卷 5-9页

作者：秦先志罗艳华王鹏赵文泽康海波张伦强张宇深圳市柳鑫实业股份有限公司广东深圳518105

覆膜铝片盖板产品广泛应用于印制电路板(PCB)机械钻孔中,尤其是在微小孔径的钻孔加工过程中,其可以有效提升孔位精度和综合钻孔效果。主要研究了不同铝厚、膜厚搭配的覆膜铝片产品在0.10、0.15、0.20 mm孔径机械钻孔中的应用,验证其过... 详细信息

覆膜铝片盖板产品广泛应用于印制电路板(PCB)机械钻孔中,尤其是在微小孔径的钻孔加工过程中,其可以有效提升孔位精度和综合钻孔效果。主要研究了不同铝厚、膜厚搭配的覆膜铝片产品在0.10、0.15、0.20 mm孔径机械钻孔中的应用,验证其过程能力指数(Cpk)及断钻率性能的变化,并得出覆膜铝片结构和相应孔径的最佳匹配方案。

关键词：机械钻孔盖板覆膜铝片匹配性

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移动数据业务管理平台研究

计算机工程与科学 2008年第8期30卷 128-130页

作者：赵永耀秦志光电子科技大学四川成都610054

本文结合移动数据业务的发展趋势,给出了一种基于分布式组件技术的多层软件体系架构的移动数据业务管理平台DSMP的设计框架,提出了DSMP的体系架构模型,从系统门户、应用服务、数据存储等方面探讨了DSMP子系统的具体设计和实现方法,在适... 详细信息

本文结合移动数据业务的发展趋势,给出了一种基于分布式组件技术的多层软件体系架构的移动数据业务管理平台DSMP的设计框架,提出了DSMP的体系架构模型,从系统门户、应用服务、数据存储等方面探讨了DSMP子系统的具体设计和实现方法,在适应未来移动数据业务的灵活性、多样性、复杂性方面进行了探索和研究。

关键词：移动通信管理平台体系架构予系统

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H型钢轧制有限元模型研究及应用

钢铁 2006年第11期41卷 42-45页

作者：段明南臧勇马光亭秦勤北京科技大学机械工程学院北京100083 莱芜钢铁集团有限公司中型型钢厂山东莱芜271104

研究了H型钢轧制过程仿真中的几何模型、材料模型和边界条件的设定问题,重点研究了断面上网格的合理分布。利用该优化模型成功地对H型钢轧制过程进行了仿真分析,取得了H型钢轧制过程中的金属流动规律、残余应力分布及立辊的水平压下偏... 详细信息

研究了H型钢轧制过程仿真中的几何模型、材料模型和边界条件的设定问题,重点研究了断面上网格的合理分布。利用该优化模型成功地对H型钢轧制过程进行了仿真分析,取得了H型钢轧制过程中的金属流动规律、残余应力分布及立辊的水平压下偏差对轧件变形和轧制力的影响规律。结果表明,建立的H型钢轧制过程有限元仿真模型合理,能为生产实践提供理论参考。

关键词：万能轧制有限元模型仿真 H型钢

Type I interferon signaling facilitates resolution of acute liver injury by priming macrophage polarization

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Cellular & Molecular Immunology 2023年第2期20卷 143-157页

作者： Qiaoling Song Shyamasree Datta Xue Liang Xiaohan Xu Paul Pavicic Xiaonan Zhang Yuanyuan zhao Shan Liu Jun zhao Yuting Xu Jing Xu Lihong Wu Zhihua Wu Minghui Zhang Zhan zhao Chunhua Lin Yuxin Wang Peng Han Peng Jiang Yating qin Wei Li Yingying Zhang Yonglun Luo Ganes Sen George R.Stark Chenyang zhao Thomas Hamilton Jinbo Yang Key Laboratory of Marine Drugs Ministry of EducationSchool of Medicine and PharmacyOcean University of ChinaQingdaoChina Department of Inflammation and Immunity Lerner Research InstituteCleveland Clinic FoundationClevelandOHUSA Shyamasree Datta Paul PavicicGanes Sen&Thomas Hamilton Lars Bolund Institute of Regenerative MedicineQingdao-Europe Advanced Institute for Life SciencesBGI-QingdaoBGI-ShenzhenShenzhenChina Innovation Center of Marine Drug Screening&Evaluation Qingdao National Laboratory for Marine Science and TechnologyQingdaoChina Department of Radiation Affiliated Hospital of Qingdao UniversityQingdaoChina Department of Urology Yantai Yuhuangding HospitalYantaiChina Department of Cancer Biology Lerner Research InstituteCleveland Clinic FoundationClevelandOHUSA

Due to their broad functional plasticity,myeloid cells contribute to both liver injury and recovery during acetaminophen overdose-induced acute liver injury(APAP-ALI).A comprehensive understanding of cellular diversity and intercellular crosstalk is essential to elucidate the mechanisms and to develop therapeutic strategies for APAP-ALI ***,we identified the function of IFN-I in the myeloid compartment during *** single-cell RNA sequencing,we characterized the cellular atlas and dynamic progression of liver CD11b+cells post APAP-ALI in WT and STAT2 T403A mice,which was further validated by immunofluorescence staining,bulk RNA-seq,and functional experiments in vitro and in *** identified IFN-I-dependent transcriptional programs in a three-way communication pathway that involved IFN-I synthesis in intermediate restorative macrophages,leading to CSF-1 production in aging neutrophils that ultimately enabled Trem2+restorative macrophage maturation,contributing to efficient liver ***,we uncovered the heterogeneity of hepatic myeloid cells in APAP-ALI at single-cell resolution and the therapeutic potential of IFN-I in the treatment of APAP-ALI.

关键词： APAP-ALI IFN-I Macrophage polarization scRNA-seq STAT2 T403 phosphorylation CSF1+neutrophil

Mitochondrial Modulation of Apoptosis Induced by Low-dose Radiation in Mouse Testicular Cells

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Biomedical and Environmental Sciences 2013年第10期26卷 820-830页

作者： FANG Fang GONG Ping Sheng zhao Hong guang BI Yu Jing zhao Gang GONG Shou Liang WANG Zhi Cheng Key Laboratory of Radiobiology Ministry of HealthSchool of Public HealthJilin University Key Laboratory for Molecular Enzymology and Engineering Ministry of Education Nuclear Medicine First Hospital of Jilin University State Key Laboratory of Pathogen and Biosecurity Academy of Military Medical Sciences

Objective To investigate whether apoptosis induced by low-dose radiation （LDR） is regulated by mitochondrial pathways in testicular cells. Methods Male mice were exposed to whole-body LDR, and changes in mitochondrial function and in expression of apoptotic factors were analyzed in the testicular cells as follows. Total nitric-oxide synthase （T-NOS） and Na＋/K＋ ATPase activities were biochemically assayed. Reactive oxygen species （ROS） and mitochondrial membrane potential （Adjm） were determined by flow cytometry using fluorescent probes. Levels of mRNAs encoding cytochrome c （Cyt c） and apoptosis-inducing factor （AIF） were quantified by real-time reverse-transcription PCR （RT-PCR）. Expression of Cyt c, AIF, caspase-9, and caspase-3 at the protein level was assessed by western blotting and immunohistochemistry. Results LDR induced an increase in T-NOS activity and ROS levels, and a decrease in Na＋/K~ ATPase activity and mitochondrial A^m, in the testicular cells. The intensity of these effects increased with time after irradiation and with dose. The cells showed remarkable swelling and vacuolization of mitochondria, and displayed a time- and dose-dependent increase in the expression of Cyt c, AIF, procaspase-9, and procaspase-3. Activation of the two procaspases was confirmed by detection of the cleaved caspases. The changes in expression of the four apoptotic factors were mostly limited to spermatogonia and spermatocytes. Conclusion LDR can induce testicular cell apoptosis through mitochondrial signaling pathways

关键词： Mitochondria Low-dose radiation Testis Apoptosis Cytochrome c

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高效的安全几何交集计算协议

电子科技大学学报 2014年第5期43卷 781-786页

作者：朱国斌谭元巍赵洋熊虎秦志光电子科技大学计算机科学与工程学院成都611731

在不泄露各自私有信息的前提下,一组互不信任的参与者进行的多方合作计算叫做安全多方计算(secure multi-party computation,SMC)。而安全交集计算是安全多方计算一个重要的子问题,它主要解决如何通过协同计算求得交集并保证隐私安全的... 详细信息

在不泄露各自私有信息的前提下,一组互不信任的参与者进行的多方合作计算叫做安全多方计算(secure multi-party computation,SMC)。而安全交集计算是安全多方计算一个重要的子问题,它主要解决如何通过协同计算求得交集并保证隐私安全的问题,该问题在社交网络、军事、商业领域有重要的应用前景。针对目前交集计算方法效率低下和计算复杂的特点,该文设计了一种高效安全的交集计算协议,该协议通过把集合中的每一个元素转换成平面空间中的点,再利用点与点的距离关系求得交集。最后通过仿真实验验证了协议的正确性、安全性和复杂性。

关键词：计算几何交集隐私保护安全多方计算

Assessment of Uterine Receptivity by Endometrial and Subendometrial Blood Flows Measured by Vaginal Color Doppler Ultrasound in Women Undergoing IVF Treatment

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Journal of Reproduction and Contraception 2007年第3期18卷 205-212页

作者： Min-zhi GAO Xiao-ming zhao Wen-ying LI Gui-mei LIU Xiao-feng JIA Hui-qin ZHANG Reproductive Medicine Center of Renji Hospital Medical College of Jiao Tong University Shanghai 200001 China Shanghai Institution of Planned Parenthood Research Shanghai 200032 China

Objective To evaluate endometrial and subendometrial blood flows measured by vaginal color Doppler ultrasound as a predicator of endometrial receptivity in women undergoing IVF treatment. Methods A total of 119 infertile patients undergoing the first IVF/ICSI-ET cycle were recruited. Three groups were divided according to a color Doppler ultrasound examination performed on the day of hCG injection. Group A, endometrial and subendometrial blood flows were 2 branches and below; group B, endometrial and subendometrial blood flows were between 3 and 4 branches; group C, endometrial and subendometrial blood flows were 5 branches and above. Patients were transferred 1-3 embryos each. Demographic data, ovarian responses, endometrial thickness, PI, RI, development of embryo and IVF result among groups were compared. Results Demographic data, ovarian responses, endometrial thickness, PI, RI and development of embryo among groups have no significant difference. The pregnancy rate of group A was significantly lower than that of group B （P〈0.05） and group C （P〈0.01）. The implantation rate of group A was significantly lower than than of group C （P〈0.01）. There was no significant difference of the rate of pregnancy and implantation between group B and group C （P〉0.05）. Conclusion Endometrial and subendometrial blood flows measured by vaginal color Doppler ultrasound is a good predicator of pregnancy during IVF treatment. A good endometrial and subendometrial blood flows is benefit for the result of IVF.

关键词： endometrial and subendometrial blood flows endometrial receptivity in vitro fertilization-embryo transfer (IVF) color Doppler ultrasound

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微机械陀螺检测接口建模及前置放大器优化

光学精密工程 2013年第7期21卷 1734-1740页

作者：赵阳裘安萍施芹赵健南京理工大学MEMS惯性技术研究中心江苏南京210094

为了进一步提高微机械陀螺的极限分辨率,建立了基于SOI工艺的微机械陀螺的检测接口模型,并设计了与之相匹配的前置接口放大器。首先,根据陀螺表头的实际结构建立了微机械陀螺表头的RC集总参数模型和微机械陀螺检测接口的噪声模型,分析... 详细信息

为了进一步提高微机械陀螺的极限分辨率,建立了基于SOI工艺的微机械陀螺的检测接口模型,并设计了与之相匹配的前置接口放大器。首先,根据陀螺表头的实际结构建立了微机械陀螺表头的RC集总参数模型和微机械陀螺检测接口的噪声模型,分析了检测接口主导噪声源及提高极限分辨率的措施。然后,在跨阻式前置放大器的基础上设计了改进的与检测接口匹配的T型前置放大器。实验结果表明:相比于跨阻式前置放大器,采用改进的T型前置放大器的等效噪声输入电流由1.18pA/√Hz降低至0.27pA/√Hz,对应的电容极限分辨率可达到0.62aF/√Hz。结果显示,采用与检测接口匹配的T型前置放大器提高了微机械陀螺的极限分辨率。

关键词：微机械陀螺接口模型极限分辨率 T型前置放大器

Highly Birefringent Photonic Crystal Fibers B Using Asymmetric Core Design

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光学学报 2003年第S1期23卷 86-87页

作者： zhao Chun-Liu Lu Chao Yan Min Wane Xiaoyan Lou Junjun Li qin Zhou Xiaoqun Cai qing PRChaudhuri Optical Network Division Institute for Inforcom ResearchSingapore637723 Network Technology Research Center Nanyang Technological UniversitySingapore639798 Beijing Glass Research Institute China

We demonstrate a highly birefringent photonic crystal fiber by utilizing the asymmetric core design. Based on spectral measurements of the polarization mode interfering, we estimate that the fiber has a beat length of... 详细信息

关键词： photonic crystal fiber beat length