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山东水利 2019年第4期 49-50页

作者：秦淑红辽宁省朝阳县凌河保护区管理局辽宁朝阳122000

结合辽宁省朝阳县乌兰和硕河治理工程,分析工程建设可能造成的区域水土流失问题,并从工程和生物两个方面阐述水土保持措施与实施过程。

关键词：乌兰和硕河治理工程水土保持

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日本“肯定列表制度”对中国的影响及借鉴

世界贸易组织动态与研究（上海对外贸易学院学报） 2007年第6期14卷 10-15页

作者：蒋科秦淑红上海对外贸易学院中国人民大学经济学院

日本为加强本国的食品安全,于2006年5月29日施行"肯定列表制度"。新标准涵盖面广,并较原标准有了大幅度的提高。它的实施对中国的食品出口产生了一定的影响,我们从中也学会用WTO允许的规则保护本国的产业。

关键词：肯定列表食品安全技术壁垒

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次氧化锌火法脱氯制备高纯氧化锌的工艺研究

无机盐工业 2023年第11期55卷 47-52页

作者：王松张建彬申玉芳覃庶宏王盛强张静冰桂林理工大学材料科学与工程学院有色金属及材料加工新技术教育部重点实验室广西桂林541000 武宣县汇丰实业有限责任公司广西武宣545900

模拟研究了回转窑焙烧次氧化锌的火法脱氯工艺。通过热力学分析确定了焙烧温度范围,并采用高温煅烧工艺对次氧化锌粉进行热处理,探讨了焙烧过程中次氧化锌的氯脱除率、物相及形貌变化。对次氧化锌原料进行了X射线衍射分析(XRD)、X射线... 详细信息

模拟研究了回转窑焙烧次氧化锌的火法脱氯工艺。通过热力学分析确定了焙烧温度范围,并采用高温煅烧工艺对次氧化锌粉进行热处理,探讨了焙烧过程中次氧化锌的氯脱除率、物相及形貌变化。对次氧化锌原料进行了X射线衍射分析(XRD)、X射线荧光分析(XRF)、扫描电子显微镜分析(SEM)。结果表明:次氧化锌主要成分为氧化锌,质量分数为76.14%,粒度为100~200 nm;其含氯杂质相主要为KCl和FeOCl,呈200~500 nm针状或树枝状团簇。热处理结果表明,在1 100℃、焙烧2 h条件下,氯脱除率达到97.63%,氧化锌纯度为94.81%,晶粒粒度从亚微米级增大至微米级,粒度为2~8μm。

关键词：次氧化锌焙烧脱氯高纯氧化锌

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集成电路外部目检方法与典型缺陷案例

电子产品可靠性与环境试验 2024年第3期42卷 12-17页

作者：武慧薇秦杰吴树洪工业和信息化部电子第五研究所广东广州511370

集成电路封装是伴随集成电路的发展而前进的。随着宇航、航空、机械、轻工和化工等各个行业的不断发展,整机也向着多功能、小型化方向变化。除高可靠性的气密封装应用外,塑封封装和球栅阵列封装等也在广泛使用。而GJB 548C-2021方法 200... 详细信息

集成电路封装是伴随集成电路的发展而前进的。随着宇航、航空、机械、轻工和化工等各个行业的不断发展,整机也向着多功能、小型化方向变化。除高可靠性的气密封装应用外,塑封封装和球栅阵列封装等也在广泛使用。而GJB 548C-2021方法 2009.2主要是检验气密性封装器件的工艺质量,针对塑封封装器件的条款存在缺失,需要结合GJB 4027B-2021工作项目1103对塑封集成电路的质量进行检验。通过对标准进行解读,对塑封集成电路和密封集成电路的外部目检适用的条款进行了分析与总结,对常见的典型缺陷案例进行了展示,并说明了其对可靠性的影响。

关键词：集成电路外部目检破坏性物理分析缺陷

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Numerical predictions and stability analysis of cavitating draft tube vortices at high head in a model Francis turbine

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Science China(Technological Sciences) 2014年第11期57卷 2106-2114页

作者： ZUO ZhiGang LIU shuhong LIU DeMin qin Daqing State Key Laboratory of Hydro Science and Engineering Department of Thermal Engineering Tsinghua University Research & Test Center Dongfang Electric Machinery Co. Ltd State Key Laboratory of Hydro-Power Equipment

Draft tube vortex is one of the main causes of hydraulic instability in hydraulic reaction turbines,in particular Francis turbines.A method of cavitation calculations was proposed to predict the pressure fluctuations induced by draft tube vortices in a model Francis turbine,by solving RANS equations with RNG k-turbulence model and ZGB cavitation model,with modified turbulence *** cases with different flow rates at high head were *** the study case of part load,two modes of revolutions with the same rotating direction,revolution around the axis of the draft tube cone,and revolution around the core of the vortex rope,can be *** elliptical shaped vortex rope causes anisotropic characteristics of pressure fluctuations around the centerline of the draft tube *** analyzing the phase angles of the pressure fluctuations,the role of the vortex rope as an exciter in the oscillating case can be *** analysis of Batchelor instability,*** in q-vortex like flow structure,has been carried out on the draft tube vortices in these three *** can be concluded that the trajectory for study case with part load lies in the region of absolute instability(AI),and it lies in the region of convective instability(CI)for study case with design flow *** for study case with over load lies in the AI region at the inlet of the draft tube,and enters CI region near the end of the elbow.

关键词： draft tube vortices pressure fluctuations Francis turbine cavitation Batchelor instability

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基于压缩感知的电力报装信息系统研究

微型电脑应用 2024年第5期40卷 129-131页

作者：王岩林树鸿覃岩岩朱大智海南电网有限责任公司信息通信分公司海南海口570203

随着用电业务的日益增多,对系统网络性能的要求也逐渐提升,为了提升电力报装系统的传输效率,通过压缩感知(CS)提升无线网络单流数据传输能力。构建以CS为基础的网络单流传输模型,设计测量矩阵,提高其重建性能,通过仿真实验证明相关理论... 详细信息

随着用电业务的日益增多,对系统网络性能的要求也逐渐提升,为了提升电力报装系统的传输效率,通过压缩感知(CS)提升无线网络单流数据传输能力。构建以CS为基础的网络单流传输模型,设计测量矩阵,提高其重建性能,通过仿真实验证明相关理论内容。实验结果证实,不管是在无噪声还是有噪声的环境中,其相比于大小相同的伯努利矩阵以及高斯矩阵,提出的矩阵具有更出色的重建性能。对于电力报装系统的传输效率的提升具有一定的参考意义。

关键词：电力报装系统压缩感知单流数据传输高斯矩阵伯努利矩阵

Organophosphate esters in water,suspended particulate matter(SPM)and sediments of the Minjiang River,China

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Chinese Chemical Letters 2021年第9期32卷 2812-2818页

作者： Hongling Yin qin Liu Xu Deng Xiaowen Liu shuhong Fang Yuanming Xiong Jiaojiao Song College of Resources and Environment Chengdu University of Information TechnologyChengdu 610025China

As organic pollutants of emerging concern,organophosphate esters(OPEs)have shown toxicity to organisms after entering the water ***,research on OPEs in freshwater in Southwest China is very *** levels,distribution and partitioning behavior of OPEs in the Minjiang River and their influencing factors is still *** this study,six OPEs,tri-n-butyl phosphate(Tn BP),tri(2-chloroethyl)-phosphate(TCEP),trichloropropyl phosphate(TCPP),triphenyl phosphate(TPh P),tributoxyethyl phosphate(TBEP),and tris(2-ethylhexyl)-phosphate(TEHP),were determined in surface water,suspended particle matter(SPM)and sediments of the Minjiang *** results showed that the average concentrations of∑_(6)OPEs in surface water,SPM and sediments of the Minjiang River were 199.32±124.95 ng/L,38463.79±45641.89 ng/g dry weight(dw)and 76.45±28.00 ng/g dw,*** concentrations of OPEs were detected in SPM samples,indicating that more attention should be paid to pollution in *** is worth noting that the variation trend of OPEs in SPM was almost opposite to that in water but basically similar to that in *** proportions of alkyl OPEs in∑_(6)OPEs increased from surface water to SPM and *** OPEs were the main pollutants in SPM(10.44%–80.88%of∑_(6)OPEs,mean of 54.52%)and sediments(59.08%–81.30%of∑_(6)OPEs,mean of 68.91%),whereas chlorinated OPEs were the most abundant components in surface water(43.16%–75.99%ofδ∑_(6)OPEs,mean of 55.50%).The water-sediment partition coefficient(logKOC)of OPEs was 4.97–7.58,while the water-SPM partition coefficient was 6.71–*** significant correlations were found between log KOW and *** was not the main factor affecting the distribution of OPEs in the Minjiang River,China.

关键词： Organophosphate esters Suspended particulate matter Partition coefficient The Minjiang River

An image-tracking algorithm based on object center distance-weighting and image feature recognition

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Frontiers of Electrical and Electronic Engineering in China 2007年第1期2卷 1-7页

作者： JIANG shuhong WANG qin ZHANG Jianqiu HU Bo Department of Electronic Engineering Fudan UniversityShanghai 200433China

Areal-time image-tracking algorithm is proposed,which gives small weights to pixels farther from the object center and uses the quantized image gray scales as a *** identifies the target’s location by the mean-shift iteration method and arrives at the target’s scale by using image feature *** improves the kernel-based algorithm in tracking scale-changing targets.A decimation method is proposed to track large-sized targets and real-time experimental results verify the effectiveness of the proposed algorithm.

关键词： object tracking video processing mean-shift algorithm feature recognition

应用于食品领域的纸基功能性包装材料研究进展

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中国造纸 2024年第9期43卷 129-137,161页

作者：李维沐吴慧敏黄际太张姝宏李仕宇王晓映吴芹齐鲁工业大学(山东省科学院)生物基材料与绿色造纸国家重点实验室山东济南250353 山东世纪阳光纸业集团有限公司山东潍坊262499

纸基功能性包装材料成本低廉、环境友好,在食品包装领域引起了广泛关注,但其应用仍存在一定的问题。本文系统地综述了应用于食品领域的纸基功能性包装材料的研究进展,探究其实用性,重点总结了应用于食品领域的纸基功能性包装材料在疏水... 详细信息

纸基功能性包装材料成本低廉、环境友好,在食品包装领域引起了广泛关注,但其应用仍存在一定的问题。本文系统地综述了应用于食品领域的纸基功能性包装材料的研究进展,探究其实用性,重点总结了应用于食品领域的纸基功能性包装材料在疏水、疏油、抗菌以及智能检测方面的发展趋势,为食品包装领域纸基功能性材料的开发提供理论依据。

关键词：纸基材料功能材料食品包装

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Chitosan hydrogel incorporated with dental pulp stem cell-derived exosomes alleviates periodontitis in mice via a macrophage-dependent mechanism

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Bioactive Materials 2020年第4期5卷 1113-1126页

作者： Zongshan Shen shuhong Kuang Yong Zhang Mingmei Yang Wei qin Xuetao Shi Zhengmei Lin Hospital of Stomatology Guangdong Provincial Key Laboratory of StomatologyGuanghua School of StomatologySun Yat-sen UniversityGuangzhouGuangdongChina National Engineering Research Centre for Tissue Restoration and Reconstruction South China University of TechnologyGuangzhouChina

Periodontitis is caused by host immune-inflammatory response to bacterial insult.A high proportion of proinflammatory macrophages to anti-inflammatory macrophages leads to the pathogenesis of *** stem cell-derived exosomes can modulate macrophage phenotype,dental pulp stem cell-derived exosomes(DPSC-Exo)can effectively treat *** this study,we demonstrated that DPSC-Exo-incorporated chitosan hydrogel(DPSC-Exo/CS)can accelerate the healing of alveolar bone and the periodontal epithelium in mice with *** Ontology(GO)term enrichment analysis showed that treatment with DPSC-Exo/CS ameliorated periodontal lesion by suppressing periodontal inflammation and modulating the immune ***,DPSC-Exo/CS facilitated macrophages to convert from a pro-inflammatory phenotype to an anti-inflammatory phenotype in the periodontium of mice with periodontitis,the mechanism of which could be associated with miR-1246 in *** results not only shed light on the therapeutic mechanism of DPSCExo/CS but also provide the basis for developing an effective therapeutic approach for periodontitis.

关键词： Dental pulp stem cells Exosomes Chitosan hydrogel Periodontitis Macrophages