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Science China Chemistry 2011年第10期54卷 1627-1634页

作者： yang hongyun LI HaiFang Masahito Ito LIN Jin-Ming GUO GuangSheng DING MingYu State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 China Beijing Key Laboratory for Analytical Methods and Instrumentation Department of Chemistry Tsinghua University Beijing 100084 China Naka Division Hitachi High-Technologies Corporation Hitachinaka 312-8504 Japan

A simple method based on hollow fiber liquid-phase microextraction (HF-LPME) followed by high performance liquid chro-matography (HPLC) analysis was successfully developed for the determination of UV filters in cosmetic products. A canular extractor was assembled by mounting a hollow fiber inside an external tube with a tee-connector. The organic solvent was immobilized into the fiber to form a liquid membrane as the acceptor phase. The sample was continuously injected into the extractor and the UV filters were extracted from the aqueous sample into organic acceptor phase. The main parameters affecting HF-LPME including extraction solvent, sample volume, sample flow rate, pH values and ionic strength were investigated. Toluene has been verified to be suitable as the acceptor phase. Under the optimized HF-LPME conditions, the enrichment factors of five UV filters varying from 24 to 57 were achieved. The limits of detection for the five UV filters were in the range of 1-100 μg L-1 .The relative standard deviations (RSDs) of HF-LPME and HPLC analysis were lower than 5.2%. The proposed method has been successfully applied to the analysis of the varied cosmetic products.

关键词： hollow fiber liquid-phase microextraction UV filter high performance liquid chromatography cosmetics

Rational design of Ni-MoO_(3–x) catalyst towards efficient hydrodeoxygenation of lignin-derived bio-oil into naphthenes

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Journal of Energy Chemistry 2023年第9期84卷 122-130页

作者： Chao Wang Luxian Guo Kui Wu Xinxin Li Yanping Huang Zhigang Shen hongyun yang Yunquan yang Weiyan Wang Changzhi Li School of Chemical Engineering Xiangtan UniversityXiangtan 411105HunanChina CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina University of Chinese Academy of Sciences Beijing 100049China Received 30 Nove

Design of a robust catalyst with high activity but the low cost for the hydrodeoxygenation(HDO) of biooils is of great importance to bring the biorefinery concept into *** this study,density functional theory(DFT) calculation was adopted to analyze the optimal location of Ni on MoO_(3-x) containing oxygen vacancy,and the corresponding result demonstrated that metallic Ni cluster located at the neighborhood of oxygen vacancies would significantly evoke HDO *** by DFT results,NiMoO_(4) was first hydrothermally synthesized and then employed to fabricate Ni-MoO_(3-x) catalyst via a low-temperature reduction,where Ni escaped from NiMoO_(4) and was reduced to its metallic *** an evolution of Ni species also induced the formation of oxygen vacancies around metallic Ni *** the HDO of p-cresol,Ni-MoO_(3-x) exhibited high activity with a complete conversion and a methylcyclohexane selectivity of 99.4% at 150℃.Moreover,the catalyst showed good versatility in catalyzing HDO of diverse lignin-derived oxygenates and lignin oil.2D HSQC NMR,gas chromatograph and elemental analysis of the lignin oil demonstrated the high deoxygenation efficiency and saturation of the benzene ring over Ni-MoO_(3-x).In the upgrading of crude lignin oil,the deoxygenation degree was up to 99%,and the overall carbon yield of the naphthenes was as high as 69.4%.Importantly,the structures and carbon numbers of the naphthene products are similar to jet fuel-range cycloalka nes,which are expected to have a high density that can be blended into jet fuel to raise the range(or payload) of *** work demonstrates the feasibility for improving the targeted catalytic reactivity by rational tailoring the catalyst structure under the guidance of theoretical analysis,and provides an energy-efficient route for the upgrading of lignin crude oil into valuable naphthenes.

关键词： Ni-MoO_(3–x)catalyst Hydrodeoxygenation Lignin-derived bio-oil Metal-vacancy interface Naphthene Renewable energy

Key Elements of Qualifications of Appraisal Conclusion as Scientific Evidence

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学术界 2011年第5期 269-272页

作者： Qiu Aimin yang hongyun School of Law,yangzhou University Editorial Department,Joural of yangzhou University

Appraisal conclusion,as a typical scientific evidence,is one of the types of legal *** terms of evidence qualification and certificate value,it has some unique *** from static analysis,the qualifications rely on the validity,form objectivity and form *** scientific nature both affects its evidence qualifications and decides its proof value appraisal conclusion.

关键词： appraisal conclusion key elements of evidence scientific evidence

International Association of Diabetes and Pregnancy Study Group criteria is suitable for gestational diabetes mellitus diagnosis： further evidence from China

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Chinese Medical Journal 2014年第20期127卷 3553-3556页

作者： Wei Yumei yang Huixia Zhu Weiwei yang hongyun Li Haixia Yan Jie Zhang Cuilin Department of Obstetrics and Gynecology Peking Univesity FirstHospital Beijing 100034 China Department of Clinical Laboratory Peking University First HospitalBeijing 100034 China Division of Epidemiology Statistics and Prevention ResearchNICHD/National Institutes of Health 6100 Executive Blvd Rm7B03 Rockville MD 20852 USA

Background The International Association of Diabetes and Pregnancy Study Group （IADPSG） recommended new diagnostic criteria for gestational diabetes mellitus （GDM） after extensive analyses of the Hyperglycemia and Adverse Pregnancy Outcomes （HAPO） study. Unfortunately, there was no data from mainland of China in this study. We evaluated the feasibility of IADPSG criteria for GDM diagnosis in China. Methods A large prospective study was conducted. We reviewed medical records of a total of 25 674 pregnant women who underwent GDM screening and diagnosis between January 1, 2005 and December 31, 2012 in the Peking University First Hospital. The prevalence of gestational glucose metabolism abnormalities was calculated according to different cut off values defined by the National Diabetes Data Group （NDDG） or the IADPSG, and the incidence of adverse pregnancy outcomes related to GDM was analyzed. Results According to the cut off values of NDDG and IADPSG criteria, the prevalence of gestational glucose metabolism abnormalities was 8.4% and 18.9% （P 〈0.01） respectively, and the prevalence of cesarean section （52.5% vs. 46.0%, P 〈0.01）, macrosomia （7.5% vs. 6.3%, P 〈0.05）, neonatal hypoglycemia （1.6% vs. 1.0%, P 〈0.01）, and perinatal death （0.5% vs. 0.2%, P 〈0.01）; the prevalence was significantly lower when IADPSG criteria were applied. The prevalence of macrosomia, cesarean section, neonatal hypoglycemia, pregnancy induced hypertension, etc. was also higher in the GDM group than in the normal group. The prevalence of cesarean section （62.3%） and macrosomia （14.8%） was the highest in untreated mild GDM patients. Conclusions Our results indicated that treatment/intervention of women with GDM identified by IADPSG criteria was related to significantly lower risk of multiple adverse pregnancy outcomes. Such findings provide support for applying IADPSG criteria in China.

关键词： gestational diabetes mellitus macrosomia cesarean section neonatal hypoglycemia

基于深度卷积神经网络的气象雷达噪声图像语义分割方法

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电子与信息学报 2019年第10期41卷 2373-2381页

作者：杨宏宇王峰岩中国民航大学计算机科学与技术学院

针对新一代多普勒气象雷达的散射回波图像受非降雨等噪声回波干扰导致精细化短时气象预报准确度降低的问题,该文提出一种基于深度卷积神经网络(DCNN)的气象雷达噪声图像语义分割方法。首先,设计一种深度卷积神经网络模型(DCNNM),利用MJD... 详细信息

针对新一代多普勒气象雷达的散射回波图像受非降雨等噪声回波干扰导致精细化短时气象预报准确度降低的问题,该文提出一种基于深度卷积神经网络(DCNN)的气象雷达噪声图像语义分割方法。首先,设计一种深度卷积神经网络模型(DCNNM),利用MJDATA数据集的训练集数据进行训练,通过前向传播过程提取特征,将图像高维全局语义信息与局部特征细节融合;然后,利用训练误差值反向传播迭代更新网络参数,实现模型的收敛效果最优化;最后,通过该模型对气象雷达图像数据进行分割处理。实验结果表明,该文方法对气象雷达图像的去噪效果较好,与光流法、全卷积网络(FCN)等方法相比,该文方法对气象雷达图像中真实回波和噪声回波的识别准确率高,图像的像素精度较高。

关键词：气象雷达深度学习图像语义分割图像去噪卷积神经网络

南京国民政府时期的灭蝗动员--以抗战前的江苏省为例

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中国历史地理论丛 2016年第1期31卷 40-49页

作者：杨红运南开大学历史学院天津300071 天津外国语大学思政部天津300204

社会动员是政党执政能力的重要体现,又是灾害救治的必要手段。抗战前,作为国民党统治核心地区的江苏省发生了严重的蝗灾。为了动员民众扑灭蝗灾,江苏省进行了组织动员、宣传动员、奖励动员和情感动员,建立了一个多维立体式的社会动员网... 详细信息

社会动员是政党执政能力的重要体现,又是灾害救治的必要手段。抗战前,作为国民党统治核心地区的江苏省发生了严重的蝗灾。为了动员民众扑灭蝗灾,江苏省进行了组织动员、宣传动员、奖励动员和情感动员,建立了一个多维立体式的社会动员网络,有利于发动广大民众参加捕蝗行动,增强其捕蝗意识,此对治理蝗灾起到了积极作用。不过,由于灭蝗过程中缺乏有效的区域协作机制,动员对象又更多依赖行政力量与乡村精英,动员模式存在强制性和脆弱性,故其治理成效相当有限。考察抗战前江苏省的灭蝗动员,有助于理解国民党政权的救灾模式及其社会动员能力。

关键词：灭蝗社会动员江苏省国民党

基于微分L-系统的水稻根系三维生长模型研究

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农业机械学报 2019年第10期50卷 208-214页

作者：杨乐彭军杨红云易文龙江西农业大学计算机与信息工程学院南昌330045 江西省高等学校农业信息技术重点实验室南昌330045

植物根系结构是其根系的空间构型,水稻根系结构表现出高度的多样性。为了探明水稻根系结构和分布规律,利用水培法开展试验,测定不同生长时期的根系三维空间坐标和形态参数,对水稻根系结构进行高精度的测量。统计分析所测试验数据,确定... 详细信息

植物根系结构是其根系的空间构型,水稻根系结构表现出高度的多样性。为了探明水稻根系结构和分布规律,利用水培法开展试验,测定不同生长时期的根系三维空间坐标和形态参数,对水稻根系结构进行高精度的测量。统计分析所测试验数据,确定了根节点的初始位置、各级枝根的生长方向以及根系的生长函数。通过整合水稻根系的拓扑结构,量化其生物学特征,提出基于微分L-系统的水稻根系三维生长模型,以描述水稻根系生长规律,并检验该模型输出结果的精度。借助Visual C++和Open GL标准图形库实现了水稻根系三维生长可视化模拟系统,直观再现了水稻根系动态的生长过程。对比分析表明,系统对总根长、根表面积和根体积的平均模拟拟合度分别为96. 82%、95. 86%和93. 96%。

关键词：水稻根系微分L-系统三维生长模型可视化

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孙中山、蒋介石与民国保甲制度的复兴

中国国家博物馆馆刊 2014年第7期 129-140页

作者：杨红运天津外国语大学思政部天津300204

民国保甲制度的复兴,既与孙中山地方自治思想的局限性有关,更与蒋介石对这种局限性的夸大和歪曲有关。孙中山关于地方自治的训政设计、认为中国民众"一盘散沙"以及重视传统社会乡村组织的作用,恰为蒋介石统制和训练民众、恢复保甲制度... 详细信息

民国保甲制度的复兴,既与孙中山地方自治思想的局限性有关,更与蒋介石对这种局限性的夸大和歪曲有关。孙中山关于地方自治的训政设计、认为中国民众"一盘散沙"以及重视传统社会乡村组织的作用,恰为蒋介石统制和训练民众、恢复保甲制度提供了解释的空间。然而,二者的地方自治思想有着本质差异。在理论基础方面,孙中山强调"主权在民",主张权利与义务的统一,而蒋介石更强调人民单方面应尽的义务;在实施主体上,孙中山强调以县为地方自治单位,体现中央与地方的分权,蒋介石则强调县以下基层乡村为自治单位,体现了国家对社会的控制;在推进方式上,孙中山主张用教育方式训练民众,逐步扩大民权,蒋介石更强调以军事化手段强化民众的服从意识;在借鉴中国古代传统时,孙中山主张融贯中西,探索适合中国实际的地方自治模式,而蒋介石借鉴中国古代保甲制度则是为了"剿共"的现实需要。

关键词：孙中山蒋介石民国保甲制度复兴

“赶考”在路上——习近平关于“跳出历史周期率”的重要论述

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理论视野 2019年第2期 30-34页

作者：杨红运天津外国语大学马克思主义学院

十八大以来,习近平总书记多次提出"跳出历史周期率"的问题,强调人心向背是最终决定政党前途和命运的铁律;强调必须坚持党内监督和群众监督相结合,保障"把权力关进制度的笼子里",保持党的自我革命的品质;强调反腐必须经常抓和长期抓,从... 详细信息

十八大以来,习近平总书记多次提出"跳出历史周期率"的问题,强调人心向背是最终决定政党前途和命运的铁律;强调必须坚持党内监督和群众监督相结合,保障"把权力关进制度的笼子里",保持党的自我革命的品质;强调反腐必须经常抓和长期抓,从源头上整治腐败,以防患于未然。习近平的这些论述拓展了社会主义"跳出历史周期率"的内涵,体现了中国共产党人强烈的历史责任意识和理论上的清醒。

关键词：历史周期率人心向背中国共产党反腐

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浅论建立企业社会责任档案的必要性与方法

档案学研究 2009年第1期 40-42页

作者：杨洪云于健青岛大学 266071

本文认为建立企业社会责任档案,不仅能够激励企业履行社会责任,也有利于促进和谐社会建设和增强中国企业的国际竞争力。结合目前实际情况,笔者指出建立企业社会责任档案应该提高全社会对企业社会责任及其档案重要性的认识,建立相关标准... 详细信息

本文认为建立企业社会责任档案,不仅能够激励企业履行社会责任,也有利于促进和谐社会建设和增强中国企业的国际竞争力。结合目前实际情况,笔者指出建立企业社会责任档案应该提高全社会对企业社会责任及其档案重要性的认识,建立相关标准和规定,确定建档内容与程序。

关键词：企业社会责任档案必要性方法