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Expert Network for Die Casing Defect Analysis

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Journal of Materials Science & Technology 2003年第4期19卷 320-323页

作者： Jiadi WANG, Yongfeng jiang, Chen lu and Wenjiang DINGNational Engineering Research Center for Light Alloy Net Shaping, Shanghai Jiao Tong University, Shanghai, 200030, China Ctr. for Light Alloy Net Shaping Shanghai Jiaotong Univ. Shanghai 200030 China

Due to the competition and high cost associated with die casting defects, it is urgent to adopt a rapid and effective method for defect analysis. In this research, a novel expert network approach was proposed to avoid some disadvantages of rule-based expert system. The main objective of the system is to assist die casting engineer in identifying defect, determining the probable causes of defect and proposing remedies to eliminate the defect. 14 common die casting defects could be identified quickly by expert system on the basis of their characteristics. BP neural network in combination with expert system was applied to map the complex relationship between causes and defects, and further explained the cause determination process. Cause determination gives due consideration to practical process conditions. Finally, corrective measures were recommended to eliminate the defect and implemented in the sequence of difficulty.

关键词： Neural network Expert system Die casting Defect analysis Back propagation

Single-event burnout hardening of planar power MOSFET with partially widened trench source

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Journal of Semiconductors 2018年第3期39卷 44-49页

作者： jiang lu Hainan Liu Xiaowu Cai Jiajun luo Bo Li Binhong Li Lixin Wang Zhengsheng Han Institute of Microelectronics of Chinese Academy of Sciences Beijing 100029China Key Laboratory of Silicon Device Technology Chinese Academy of SciencesBeijing 100029China University of Chinese Academy of Sciences Beijing 100029China

We present a single-event burnout（SEB） hardened planar power MOSFET with partially widened trench sources by three-dimensional（3 D） numerical simulation. The advantage of the proposed structure is that the work of the parasitic bipolar transistor inherited in the power MOSFET is suppressed effectively due to the elimination of the most sensitive region（P-well region below the N＋ source）. The simulation result shows that the proposed structure can enhance the SEB survivability significantly. The critical value of linear energy transfer（LET）,which indicates the maximum deposited energy on the device without SEB behavior, increases from 0.06 to0.7 p C/μm. The SEB threshold voltage increases to 120 V, which is 80% of the rated breakdown voltage. Meanwhile, the main parameter characteristics of the proposed structure remain similar with those of the conventional planar structure. Therefore, this structure offers a potential optimization path to planar power MOSFET with high SEB survivability for space and atmospheric applications.

关键词： planar power MOSFETs single-event burnout(SEB) parasitic bipolar transistor second breakdown voltage

Structural,mechanical,and electronic properties of Zr-Te compounds from first-principles calculations

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Chinese Physics B 2020年第7期29卷 406-412页

作者： Peng Wang Ning-Chao Zhang Cheng-lu jiang Fu-Sheng Liu Zheng-Tang Liu Qi-Jun Liu School of Electronic and Information Engineering Xi’an Technological UniversityXi’an 710021China School of Physical Science and Technology Key Laboratory of Advanced Technologies of MaterialsMinistry of EducationSouthwest Jiaotong UniversityChengdu 610031China State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi’an 710072China

The first-principles calculations based on density functional theory are used to obtain structural,mechanical,and electronic properties of Zr-Te *** optimized structural parameters are consistent with the available experimental *** calculated mechanical properties and formation energy show that the Zr-Te compounds are all mechanically and thermodynamically *** bulk modulus B,shear modulus G,Young’s modulus E,Debye temperatureΘD,and sound velocity vm are listed,which are positively correlated with the increasing of atomic fraction of *** behaviors of density of states of Zr-Te compounds are ***,the electronic properties are discussed to clarify the bonding characteristics of *** electronic characteristics demonstrate that the Zr-Te systems with different phases are both covalent and metallic.

关键词： Zr-Te compounds first-principles calculations mechanical properties

Chloride removal from wastewater by thermally treated hydrotalcite

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Chinese Journal Of Geochemistry 2006年第B8期25卷 255-256页

作者： jiang HUA Liang lu West Branch of Zhejiang University of Technology Hangzhou 324006 China

Salvianolic acid B protects hepatocytes from H2O2 injury by stabilizing the lysosomal membrane

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World Journal of Gastroenterology 2017年第29期23卷 5333-5344页

作者： Xiao-Feng Yan Pei Zhao Dong-Yan Ma Yi-lu jiang Jiao-Jiao luo Liu Liu Xiao-Ling Wang Department of Biology School of Basic Medical Science Shanghai University of Traditional Chinese Medicine Women and Infant Hospital of Zhengzhou Shanghai University of Traditional Chinese Medicine

AIM To investigate the capability of salvianolic acid B(Sal B) to protect hepatocytes from hydrogen peroxide(H_2O_2)/carbon tetrachloride(CCl_4)-induced lysosomal membrane permeabilization. METHODS Cell Counting Kit-8 assay was used to measure cell viability. Apoptosis and death were assayed through flow cytometry. Brd U incorporation was used to detect cell proliferation. Serum alanine aminotransferase activity and liver malondialdehyde(MDA) content were measured. Liver histopathological changes were evaluated using hematoxylin-eosin staining. Lysosomal membrane permeability was detected with Lyso Tracker Green-labeled probes and acridine orange staining. The levels of protein carbonyl content(PCC), cathepsins(Cat)B/D, and lysosome-associated membrane protein 1(LAMP1) were evaluated through western blotting. Cytosol Cat B activity analysis was performed with chemiluminescence detection. The m RNA level ofLAMP1 was evaluated through quantitative real-time polymerase chain reaction. RESULTS Results indicated that H_2O_2 induced cell injury/death. Sal B attenuated H_2O_2-induced cell apoptosis and death, restored the inhibition of proliferation, decreased the amount of PCC, and stabilized the lysosome membrane by increasing the LAMP1 protein level and antagonizing Cat B/D leakage into the cytosol. CCl_4 also triggered hepatocyte death. Furthermore, Sal B effectively rescued hepatocytes by increasing LAMP1 expression and by reducing lysosomal enzyme translocation to the *** Sal B protected mouse embryonic hepatocytes from H_2O_2/CCl_4-induced injury/death by stabilizing the lysosomal membrane.

关键词： Lysosomal membrane permeabilization Injury Salvianolic acid B Hepatocyte

Expats in jiangsu Focus on Their Second Hometown

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Voice of Friendship 2017年第2期 45-47页

作者： Zhou Weidong jiang lu JSPAFFC

As jiangsu is making progress in economic and social development and opening up wider to the outside world,more than 100,000 foreigners work and study *** not only have become accustomed to our lifestyle but also take... 详细信息

关键词： Expats in jiangsu Focus on Their Second Hometown

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改善国民营养助力全面小康

中国食品卫生杂志 2020年第4期32卷 351-355页

作者：卢江国家食品安全风险评估中心北京100022

党中央国务院高度重视人民健康,党的十九大提出了"实施健康中国战略",旨在全面提高人民健康水平、促进人民健康发展。科学合理的国民营养是全民健康的重要保障,是经济社会可持续发展的必然要求,是决胜全面建成小康社会的基础条件,也是... 详细信息

党中央国务院高度重视人民健康,党的十九大提出了"实施健康中国战略",旨在全面提高人民健康水平、促进人民健康发展。科学合理的国民营养是全民健康的重要保障,是经济社会可持续发展的必然要求,是决胜全面建成小康社会的基础条件,也是广大人民群众的共同追求。本文重点对改善国民营养的重大意义、当前面临的主要挑战、建议实施的重要行动等方面进行了深入剖析和阐述,为不断提升全民营养健康水平、助力健康中国建设提供参考依据。

关键词：国民营养全民健康全面小康重要行动

后疫情时代全球能源治理重构:挑战、反思与“一带一路”选择

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中国软科学 2022年第2期 1-10页

作者：吕江西北政法大学丝绸之路能源法研究所陕西西安710063

新冠肺炎疫情下,油价暴跌的事实表明,传统能源安全观已无法适应全球能源稳步发展的时代诉求。既有能源垄断结构的坍塌、能源治理机制的不适应以及新能源革命的出现都对后疫情时代全球能源治理形成新的挑战。为此,应树立起新的能源安全观... 详细信息

新冠肺炎疫情下,油价暴跌的事实表明,传统能源安全观已无法适应全球能源稳步发展的时代诉求。既有能源垄断结构的坍塌、能源治理机制的不适应以及新能源革命的出现都对后疫情时代全球能源治理形成新的挑战。为此,应树立起新的能源安全观,以实现能源供需平衡为旨趣,重构全球能源治理新秩序。对于中国而言,一方面,应积极发挥“一带一路”能源合作伙伴关系的制度优势,在全球能源治理中贡献中国智慧、中国方案,促成向新能源安全观转向;另一方面,应努力提升国内能源大循环的治理现代化水平,提高应对国际能源风险和外部冲击的应急能力,以期实现新发展格局下,保障国内能源安全的新时代使命。

关键词：全球能源治理新冠肺炎疫情 “一带一路”

对我国食品安全重大风险早期识别与快速预警机制建设的思考

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中国食品卫生杂志 2020年第2期32卷 113-117页

作者：卢江国家食品安全风险评估中心北京100022

党的十八大以来,食品安全工作得到了党中央国务院的高度重视,食品安全形势不断好转,但食品安全未知风险隐患防控形势依然十分严峻,不容乐观。2020年全国暴发的新型冠状病毒肺炎疫情,给我国食品安全重大风险隐患快速预警体系及其防控机... 详细信息

党的十八大以来,食品安全工作得到了党中央国务院的高度重视,食品安全形势不断好转,但食品安全未知风险隐患防控形势依然十分严峻,不容乐观。2020年全国暴发的新型冠状病毒肺炎疫情,给我国食品安全重大风险隐患快速预警体系及其防控机制敲响了警钟。本文重点研究分析在食品安全风险隐患信息收集和早期预警防控等方面存在的制度保障机制不完善、体系支撑和能力建设不足等问题,并针对问题提出了有关建议。

关键词：食品安全风险预警防控机制