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模块类网络安全产品的智能测试系统设计

计算机测量与控制 2024年第1期32卷 37-44,50页

作者：孟珞珈郭元兴盛强强杨光廖熹李建国中国电子科技集团公司第30研究所成都610041

为提高模块类网络安全产品的批量测试效率,降低人力成本及换线时间,开展了模块类网络安全产品的智能测试系统设计;通过对模块类网络安全产品的智能测试需求进行分析,采用将搭载图像传感器的工业机械手与基于PXI架构的测试系统相结合的... 详细信息

为提高模块类网络安全产品的批量测试效率,降低人力成本及换线时间,开展了模块类网络安全产品的智能测试系统设计;通过对模块类网络安全产品的智能测试需求进行分析,采用将搭载图像传感器的工业机械手与基于PXI架构的测试系统相结合的技术路线,并对机械手控制技术和PXI总线测试平台设计技术进行了研究;创新设计了模块类网络安全产品的智能测试系统,对测试工艺流程进行优化与再造,实现了产品上下料、型号识别与柔性换线、智能装夹、批量测试、合格品与不合格品分拣等流程的一站式无人值守运转;经实际应用验证,智能测试系统的单日测试产能提升超过180%,单日人工工时减少93%以上,换线时间从平均70分钟减少到10分钟以内。

关键词：网络安全产品机械手系统图像传感器 PXI架构智能测试系统

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Single-cell mass spectrometry studies of drug metabolism heterogeneity and primary resistance to gefitinib in non-small cell lung cancer cells

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Chinese Chemical Letters 2024年第2期35卷 436-440页

作者： Guizhen Zhu Yaoyao Zhao Wenmei Zhang Yuanyuan Wu yuanxing Liu Guangsheng guo Xiayan Wang Zhihong Liu Center of Excellence for Environmental Safety and Biological Effects Beijing Key Laboratory for Green Catalysis and SeparationDepartment of ChemistryBeijing University of TechnologyBeijing 100124China Minzu University of China Beijing 100081China Key Laboratory for the Synthesis and Application of Organic Functional Molecules College of Health Science and EngineeringHubei UniversityWuhan 430062China

Patients with epidermal growth factor receptor(EGFR)wild-type non-small cell lung cancer(NSCLC)often show primary resistance to gefitinib *** is thus necessary to study the metabolism of gefitinib in NSCLC cells to comprehensively reveal the reasons for the primary resistance of ***,we develop a platform for studying drug metabolism heterogeneity based on single-cell mass spectrometry(sDMH-scMS)by integrating living-cell electrolaunching ionization MS(ILCEI-MS)and high-performance liquid chromatography-MS(HPLC-MS)analysis,and the primary resistance of NSCLC cells to gefitinib was studied using this *** ILCEI-MS analysis showed that approximately 11.9%of NSCLC single cells contained the gefitinib metabolite M11;HPLC-MS detection diluted the intensity of M11 in subpopulations and concealed the heterogeneity of drug metabolism in tumor single *** intensity of gefitinib in EGFR wild-type A549 cells was markedly lower than in mutant PC9 cells,and the intensity of gefitinib metabolites was significantly higher than in PC9 cells,suggesting that the primary resistance of NSCLC cells is related to gefitinib ***,the combination of gefitinib and the drug-metabolizing enzyme inhibitorα-naphthoflavone was shown to overcome the primary resistance of the NSCLC ***,the results of this study are expected to be applicable for clinical drug resistance diagnosis and treatment at the single-cell level.

关键词： Single-cell mass spectrometry Drug metabolism Non-small cell lung cancer Gefitinib Primary resistance

Defect and nanostructure engineering of polymeric carbon nitride for visible-light-driven CO2 reduction

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贴片式网络变压器高温开裂缺陷分析及预防措施

结构化学 2024年第3期43卷 10-18页

作者： Ziruo Zhou Wenyu guo Tingyu Yang Dandan Zheng yuanxing Fang Xiahui Lin Yidong Hou Guigang Zhang Sibo Wang State Key Laboratory of Photocatalysis on Energy and Environment College of ChemistryFuzhou UniversityFuzhou350116China College of Environment and Safety Engineering Fuzhou UniversityFuzhou350108China

Sunlight-induced photocatalytic carbon dioxide(CO2)reduction to energy-rich chemicals by metal-free polymeric carbon nitride(CN)semiconductor is a promising tactic for sustained solar fuel ***,the reaction efficiency of CO2 photoreduction is restrained seriously by the rapid recombination of photogenerated carriers on CN ***,we incorporate 2-aminopyridine molecule with strong electron-withdrawing group into the skeleton edge of CN layers through a facile one-pot thermal polymerization strategy using urea as the precursor,which renders a modified carbon nitride(ACN)with extended optical harvesting,abundant nitrogen defects and ultrathin nanosheet ***,the ACN photocatalyst with desirable structural features attains enhanced separation and migration of photoexcited charge *** visible light irradiation with Co(bpy)32+as a cocatalyst,the optimized ACN sample manifests a high CO2 deoxygnative reduction activity and high sta-bility,providing a CO yielding rate of 17 μmol h-1,which is significantly higher than that of pristine *** key intermediates engaged in CO2 photoreduction reaction are determined by the in situ diffuse reflectance infrared Fourier transform spectroscopy,which sponsors the construction of the possible photocatalytic CO2 reduction mechanism on ACN nanosheets.

关键词： Carbon nitride Photocatalysis CO_2 reduction Nitrogen defects Nanosheets

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电子工艺技术 2024年第5期45卷 17-20页

作者：毛久兵李胜红陈锐郭元兴杨唐绍秦宗良高燕青邴继兵黎全英杨伟中国电科技集团公司第三十研究所成都610041 中央军委装备发展部军事代表局驻成都地区第一军事代表室成都610041

裂纹是电子元器件封装失效的一个重要指标。基于贴片式网络变压器在再流焊组装过程中出现开裂质量缺陷问题,从灌封材料固化后内部缺陷和内应力,以及材料的热膨胀系数、吸潮特性等方面对开裂形成机理展开分析。对变压器生产方和用户方提... 详细信息

裂纹是电子元器件封装失效的一个重要指标。基于贴片式网络变压器在再流焊组装过程中出现开裂质量缺陷问题,从灌封材料固化后内部缺陷和内应力,以及材料的热膨胀系数、吸潮特性等方面对开裂形成机理展开分析。对变压器生产方和用户方提出了预防开裂的方法,针对用户方,通过试验验证,得出在装配前进行烘烤可有效防止网络变压器高温开裂。

关键词：网络变压器再流焊开裂灌封工艺

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Padmasambhava 蓮花生

The Voice of Dharma 2020年第1期1卷 132-135,183页

作者： guo yuanxing Liu Chen(校) guo Jing(校) 不详

Padmasambhava was a greatācārya in Tibet when Tantric Buddhism was first propagated there,and he was,highly esteemed by the Buddhists in Tibet,who designated him as"Sans-rgyas gnispa"(the Second Buddha).

关键词： ava mas Tibet

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挠性光电印制电路板工艺光纤特性仿真与测试

红外与激光工程 2023年第4期52卷 262-272页

作者：毛久兵郭元兴佘雨来刘强张军华杨伟杨剑黎全英中国电子科技集团公司第三十研究所四川成都610093 桂林电子科技大学机电工程学院广西桂林541004

挠性光电印制电路板(Flexible Electro-Optical Printed Circuit Board,FEOPCB)在高温层压制作过程中,埋入光纤会产生热应力,造成光纤损坏等缺陷,影响其可靠性和高速信号传输性能。为了降低FEOPCB弯曲半径并提升其可靠性,将在双面覆铜... 详细信息

挠性光电印制电路板(Flexible Electro-Optical Printed Circuit Board,FEOPCB)在高温层压制作过程中,埋入光纤会产生热应力,造成光纤损坏等缺陷,影响其可靠性和高速信号传输性能。为了降低FEOPCB弯曲半径并提升其可靠性,将在双面覆铜聚酰亚胺(PI)基板上设计制作高精度矩形光纤定位槽。首先建立有/无涂覆层光纤埋入挠性基板有限元仿真模型,对FEOPCB制造工艺进行模拟仿真,并对埋入光纤应力及影响因素进行分析。结果表明,有涂覆层光纤所受应力远小于无涂覆层光纤。针对有涂覆层光纤,采用激光刻蚀技术在双面覆铜PI基板上制作了高精度矩形定位槽,通过高温层压工艺完成了FEOPCB制作。FEOPCB完成了温度冲击、低温、高温、湿热和10万次弯曲疲劳可靠性试验,利用光学显微镜观察分析,埋入光纤无高温降解和破裂等缺陷。FEOPCB最小弯曲半径小至2 mm,弯曲损耗分别为0.57 dB(90°)和1.12 dB(180°),且相邻光纤之间无串扰,在850 nm波长条件下通信速率可达10 Gbps,误码率小于10^(-16)。

关键词：光电互联挠性光电印制电路板有限元分析定位微槽高可靠性

失效汽车尾气催化剂中铂族金属回收的研究进展

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贵金属 2024年第1期45卷 78-89页

作者：李明钢高元兴郭学益中南大学冶金与环境学院长沙410083

失效汽车尾气催化剂是回收铂族金属(铂、钯、铑)的重要二次资源。本文介绍了失效汽车尾气催化剂中铂族金属的回收工艺流程,包括失效催化剂预处理、铂族金属富集、分离与精炼三部分;详细介绍了两种高效预处理技术、两种富集方法以及四种... 详细信息

失效汽车尾气催化剂是回收铂族金属(铂、钯、铑)的重要二次资源。本文介绍了失效汽车尾气催化剂中铂族金属的回收工艺流程,包括失效催化剂预处理、铂族金属富集、分离与精炼三部分;详细介绍了两种高效预处理技术、两种富集方法以及四种分离与精炼工艺,总结了各种方法的原理、工艺流程、优缺点及改进方向。回收企业应根据回收规模和环保政策采用合适的回收工艺,以实现不同回收工艺之间的优势互补,未来需重点研发回收率高且环境友好的清洁回收工艺。

关键词：铂族金属失效汽车尾气催化剂富集分离与提纯

基于光纤传输的PCI Express总线延长方法与实现

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通信技术 2021年第3期54卷 750-755页

作者：杨光付文彬郭元兴孟珞珈中国电子科技集团公司第三十研究所四川成都610041

为实现PCI Express总线的远距离传输,提出了一种PCI Express总线延长方法。该方法以光纤作为传输介质,采用光电转换模块,将PCI Express总线的电信号转为光信号,经光纤传输延长后,再使用光电转换模块将光信号还原为PCI Express总线电信... 详细信息

为实现PCI Express总线的远距离传输,提出了一种PCI Express总线延长方法。该方法以光纤作为传输介质,采用光电转换模块,将PCI Express总线的电信号转为光信号,经光纤传输延长后,再使用光电转换模块将光信号还原为PCI Express总线电信号。该方法结合了光纤传输信号质量高、传输距离远以及重量轻等优点,将PCI Express总线有效延长至30 m,并搭建测试环境进行了功能和性能测试验证,实现了PCI Express总线的远距离传输。

关键词： PCI Express 远距离传输光纤链路训练

The Cost-effectiveness Analysis of Percutaneous Transhepatic Metal Versus Plastic Biliary Stent Implantation for Treating Malignant Biliary Obstruction (Multiple Center Investigation)

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The Chinese-German Journal of Clinical Oncology 2004年第2期3卷 117-121,128页

作者：郭元星李彦豪陈勇陈平雁罗鹏飞李勇单鸿姜在波广州第一军医大学附属南方医院介入治疗科 510515

Objective: To compare metal versus plastic biliary stent implantation for treatment of malignant biliary obstruction in cost-effectiveness ratio (CER). Methods: Percutaneous transhepatic self-expandable metal stent (MS, n=61) or 10F plastic stent (PS, n=34) implantation was performed in 95 patients with malignant biliary obstruction in three hospitals of Guangdong province. All patients were followed up until death or at least one year after the procedure. Kaplan-Meier analysis was used to compare the survival and stent patency rates of the patients in the two groups. CERs of two groups were calculated. The main indexes were CERsurvival period (total cost/median survival period), CERpatency period (total cost/median patency period). Results: The total costs of treatment were 53177±3139 yuan (RMB) in MS group and 42564±4950 yuan (RMB) in PS group respectively (P>0.05). CER in MS group was superior to that in PS group (CERsurvival period was 237.4 yuan /d vs 452.6 yuan /d, respectively; CERpatency period was 231.2 yuan /d vs 472.9 yuan /d, respectively). Conclusion: The metal stent implantation is superior to the plastic stent in the CER for treatment of malignant biliary obstruction.

关键词： radiology interventional stent biliary obstruction cost-effectiveness analysis