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Estimation of diffuse photosynthetically active radiation and the spatiotemporal variation analysis in China from 1981 to 2010

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Journal of Geographical Sciences 2014年第4期24卷 579-592页

作者： ren Xiaoli HE honglin ZHANG Li YU Guirui Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research CAS Beijing 100101 China University of Chinese Academy of Sciences Beijing 100049 China

Photosynthetically active radiation （PAR） is the energy source of plant photosyn thesis, and the diffuse component can enhance canopy light use efficiency, thereby increasing the carbon uptake. Therefore, diffuse PAR is an important driving factor of ecosystem productivity models. In this study, we estimated the diffuse PAR of over 700 meteorological sites in China from 1981 to 2010 using an empirical model based on observational data from Chinese Ecosystem Research Network （CERN） and China Meteorology Administration. Then we derived the spatial data set of 10 km monthly diffuse PAR using ANUSPLIN software, and analyzed the spatiotemporal variation characteristics of diffuse PAR through GIS and trend analysis techniques. The results showed that：（1） The spatial patterns of annual average diffuse PAR during 1981-2010 are heterogeneous across China, lower in the northeast and higher in the west and south. The nationwide average value for 30 years ranges from 6.66 mol m-2 d-1 to 15.27 mol m-2 d-1, and the value in summer is the biggest while the value in winter is the smallest. （2） There is an evident increasing trend of annual diffuse PAR during recent 30 years, with the increasing amplitude at 0.03 mol m-2 d-l/10a. But a significant declining trend is shown in the first 10 years, and obvious anomalies can be seen in 1982, 1983, 1991 and 1992. And there is a downtrend in spring and an uptrend in all the other seasons. （3） The spatial distribution of temporal variation rates of diffuse PAR is inhomogeneous across the country, generally decreasing in the north and increasing in the south.

关键词： photosynthetically active radiation (PAR) diffuse fraction diffuse PAR spatiotemporal variations

Flavonoid content and radical scavenging activity in fruits of Chinese dwarf cherry(Cerasus humilis) genotypes

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Journal of Forestry Research 2018年第1期29卷 55-63页

作者： Pengfei Wang xiaopeng Mu Junjie Du Yu Gary Gao Donghai Bai Luting Jia Jiancheng Zhang Haiyan ren Xiaofang Xue College of Horticulture Shanxi Agricultural UniversityTaigu 030801 Shanxi People's Republic of China OSU South Centers College of Food Agricultural and Environmental Science The Ohio State University 1864Shyville Road Piketon OH 45661 USA Administration of Fruits Industry Development Zhouzhi 710400 Shaanxi People's Republic of China Research Institute of Fruit Tree Shanxi Agricultural ScienceTaigu 030801 Shanxi People's Republic of China Shanxi Key Laboratory of Germplasm Improvement and Utilization in Pomology Taigu 030801 Shanxi People'sRepublic of China

The Chinese dwarf cherry（Cerasus humilis（Bge.） Sok.） is a small shrub with edible fruits. It is native to northern and western China. This species was included as a medicinal plant in the ‘‘Chinese Pharmacopeia’’ and has emerged as an economically important crop for fresh fruit consumption, processing into juice and wine and nutraceutical products as well. To gain a better understanding of flavonoid biosynthesis and help develop value added products and better cultivars with greater health benefits, we analyzed total flavonoid content（TFC）, composition, and radical scavenging activities in fruit extracts of 16 Chinese dwarf cherry genotypes. Fruit peel TFC ranged from 33.5 to72.8 mg/g REáFW（RE： rutin equivalent, FW： fresh weight）while fruit flesh TFC ranged from 4.3 to 16.9 mg/g REá*** HPLC analysis revealed that fruit extracts contained 14 flavonoids with considerable variation in their profiles across genotypes. The most abundant flavonoids in most genotypes were proanthocyanidin B1（PA-B1）, proanthocyanidin B2（PA-B2）, phloretin 20-O-glucoside（PG）, and phloretin 20,40-O-diglucoside（PDG）. Principal component analysis showed that PG, PA-B1, and PA-B2 had large,positive factor loading values in the first principal component for each genotype. Increased scavenging activity of2,2-diphenyl-1-picrylhydrazyl（DPPH） radicals was apparent in genotypes ‘Nongda 4’, ‘Nongda 3’, ‘Nongda 6’,‘Wenfenli’, and ’10-32’, suggesting promising applications in the production of nutraceutical products. In summary, our results will aid in breeding, fruit processing, and developing medicinal uses of the Chinese dwarf cherry.

关键词： Chinese dwarf cherry Flavonoid profiles Principal component analysis DPPH scavenging

开心散治疗乳腺癌失眠症患者的临床疗效及对血清5-羟色胺水平的影响

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安徽中医药大学学报 2024年第2期43卷 19-24页

作者：张浩朱国旗杨绍杰任扩军马小鹏张雨祝永福安徽中医药大学第一临床医学院安徽合肥230012 安徽中医药大学中医学院安徽合肥230012 安徽中医药大学第二附属医院安徽合肥230061 中国科学技术大学附属第一医院安徽合肥230001 安徽中医药大学第一附属医院安徽合肥230031 胡国俊传承人才培养办公室安徽合肥230031

目的观察开心散治疗乳腺癌失眠症患者的临床疗效及对血清5-羟色胺(5-hydroxytryptamine,5-HT)水平的影响。方法将63例乳腺癌失眠症患者随机分为对照组33例和治疗组30例。对照组患者采用艾司唑仑治疗,治疗组患者采用开心散联合艾司唑仑... 详细信息

目的观察开心散治疗乳腺癌失眠症患者的临床疗效及对血清5-羟色胺(5-hydroxytryptamine,5-HT)水平的影响。方法将63例乳腺癌失眠症患者随机分为对照组33例和治疗组30例。对照组患者采用艾司唑仑治疗,治疗组患者采用开心散联合艾司唑仑治疗。比较两组治疗前后匹兹堡睡眠质量指数量表(Pittsburgh sleep quality index,PSQI)、抑郁自评量表(self-rating depression scale,SDS)、焦虑自评量表(self-rating anxiety scale,SAS)、欧洲癌症研究和治疗协作组编制的癌症患者生活质量评分(European organization for research and treatment of cancer quality of life questionnaire-core 30,EORTC QLQ-C30)以及血清5-HT水平;在连续治疗4周后,比较两组临床疗效及不良反应发生率。结果治疗4周后,两组PSQI、SDS、SAS评分均较治疗前显著降低(P<0.05),且治疗组PSQI评分显著低于对照组(P<0.05);治疗组EORTC QLQ-C30躯体功能、情绪功能、认知功能以及社会功能评分均显著高于对照组(P<0.05);两组患者治疗后血清5-HT水平较治疗前显著升高(P<0.05),且治疗组血清5-HT水平高于对照组(P<0.05);治疗组疗效优于对照组(P<0.05);治疗组总不良反应发生率低于对照组,差异有统计学意义(P<0.05)。结论相较于单纯艾司唑仑治疗,开心散联合艾司唑仑能更好地改善乳腺癌患者睡眠,升高血清5-HT水平,提高乳腺癌患者生活质量,降低不良反应发生率。

关键词：开心散失眠症乳腺癌 5-羟色胺

去氢枞酸固液溶解度及其反应-结晶耦合单离方法

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生物质化学工程 2024年第3期58卷 39-47页

作者：任宝光杨和见陈小鹏侯文彪张众尧李前黄卫梧州黄埔化工药业有限公司广西梧州543000 广西大学化学化工学院广西石化资源加工及过程强化技术重点实验室广西南宁530004 广西梧州日成林产化工股份有限公司广西梧州543100

采用激光监视技术判断平衡终点,由动态法测定了282~325 K去氢枞酸在甲醇、无水乙醇、正丙醇、正丁醇中的固液溶解度;应用λh模型、Wilson模型、简化模型分别对溶解度数据进行关联;采用超/亚临界CO_(2)强化胺化反应-结晶耦合方法单离去... 详细信息

采用激光监视技术判断平衡终点,由动态法测定了282~325 K去氢枞酸在甲醇、无水乙醇、正丙醇、正丁醇中的固液溶解度;应用λh模型、Wilson模型、简化模型分别对溶解度数据进行关联;采用超/亚临界CO_(2)强化胺化反应-结晶耦合方法单离去氢枞酸,以GC分析、熔点和旋光率检测去氢枞酸纯度。结果表明:去氢枞酸在4种醇类溶剂中的溶解度均随温度的升高而增大,其溶解度大小在不同溶剂中顺序为:正丁醇>正丙醇>无水乙醇>甲醇;去氢枞酸在4种醇类溶剂中的溶解度数据用λh模型、Wilson模型和简化模型关联的平均相对误差最大值分别为1.23%、2.15%和0.87%;通过正交试验得到超/亚临界CO_(2)强化胺化反应-结晶耦合单离去氢枞酸的最优反应条件为:反应时间50 min,反应温度308 K,CO_(2)压强7.5 MPa,溶剂乙醇体积分数50%,搅拌转速400 r/min,所得去氢枞酸的收率为81.85%,纯度为99.62%;去氢枞酸熔点为446.0~446.5 K,旋光率[α]^(20) _(D)为+62.2°。

关键词：去氢枞酸溶解度超/亚临界CO_(2) 胺化反应-结晶单离

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中国碳收支:1980~2021年

Science Bulletin 2024年第1期69卷 114-124页

作者：夏晓圣任培阳王旭辉刘丹陈修治丹利何斌何洪林居为民梁敏琪陆星劼彭静覃章才夏江周郑博魏静乐旭于贵瑞朴世龙袁文平 School of Atmospheric Sciences Guangdong Province Data Center of Terrestrial and Marine Ecosystems Carbon CycleSun Yat-sen UniversityZhuhai 510245China Sino-French Institute for Earth System Science College of Urban and Environmental SciencesPeking UniversityBeijing 100091China State Key Laboratory of Tibetan Plateau Earth System Resources and EnvironmentInstitute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China Key Laboratory of Regional Climate-Environment for Temperate East Asia Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China State Key Laboratory of Earth Surface Processes and Resource Ecology College of Global Change and Earth System ScienceBeijing Normal UniversityBeijing 100875China Synthesis Research Center of China’s Ecosystem Research Network Key Laboratory of Ecosystem Network Observation and ModelingInstitute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China International Institute for Earth System Science Nanjing UniversityNanjing 210023China Tianjin Key Laboratory of Water Resources and Environment Tianjin Normal UniversityTianjin 300387China Institute of Environment and Ecology Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055China Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control Collaborative Innovation Center of Atmospheric Environment and Equipment TechnologySchool of Environmental Science and EngineeringNanjing University of Information Science&TechnologyNanjing 210044China

As one of the world's largest emitters of greenhouse gases,China has set itself the ambitious goal of achieving carbon peaking and carbon ***,it is crucial to quantify the magnitude and trend of sources and sinks of atmospheric carbon dioxide(CO_(2)),and to monitor China's progress toward these *** state-of-the-art datasets and models,this study comprehensively estimated the anthropogenic CO_(2)emissions from energy,industrial processes and product use,and waste along with natural sources and sinks of CO_(2)for all of China during *** recognize the differences among various methods of estimating greenhouse emissions,the estimates are compared with China's National Greenhouse Gas Inventories(NGHGIs)for 1994,2005,2010,2012,and *** CO_(2)emissions in China have increased by 7.39 times from 1980 to 12.77 Gt CO_(2)a^(-1)in *** benefiting from ecological projects(e.g.,Three Norths Shelter Forest System Project),the land carbon sink in China has reached 1.65 Gt CO_(2)a^(-1)averaged through 2010-2021,which is almost 15.81 times that of the carbon sink in the *** average,China's terrestrial ecosystems offset 14.69%±2.49%of anthropogenic CO_(2)emissions through *** provincial-level administrative regions of China,Xizang and Qinghai,have achieved carbon neutrality according to our estimates,but nearly half of the administrative regions of China have terrestrial carbon sink offsets of less than 10%of anthropogenic CO_(2)*** study indicated a high level of consistency between NGHGIs and various datasets used for estimating fossil CO_(2)emissions,but found notable differences for land carbon *** estimates of the terrestrial carbon sinks of NGHGIs urgently need to be verified with process-based models which integrate the comprehensive carbon cycle processes.

关键词： CO_(2)emission Land carbon sink China Carbon neutrality Carbon budget

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“饭圈”对青少年的影响及其治理路径

天津职业院校联合学报 2024年第7期26卷 12-16页

作者：许萍胡晓澎孟昕天津滨海职业学院天津300451 天津仁爱学院天津301600 南开大学滨海学院天津300450

“饭圈”本应引领粉丝群体从偶像身上汲取更多的正能量,然而今天一些不良的“饭圈”却令粉丝的追星行为变得盲目偏执,正在试图改变青少年的主流思想观念。面对如此风险与挑战,牢牢掌握青少年思想政治工作领导权,加强网络诚信建设和青少... 详细信息

“饭圈”本应引领粉丝群体从偶像身上汲取更多的正能量,然而今天一些不良的“饭圈”却令粉丝的追星行为变得盲目偏执,正在试图改变青少年的主流思想观念。面对如此风险与挑战,牢牢掌握青少年思想政治工作领导权,加强网络诚信建设和青少年思想引领,营造和谐的网络环境,化解网络风险,治理不良“饭圈”是应有之义。

关键词： “饭圈” 网络诚信思想引领

385/65R22.5 24PR 164J AM211宽基子午线轮胎耐久性能的提高

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轮胎工业 2024年第3期44卷 142-144页

作者：王雪鞠浩孙宗涛吕伟曲家玉任世夺黄孝鹏浦林成山(山东)轮胎有限公司山东荣成264300

从骨架材料、胎肩垫胶、胎面和带束层宽度等方面入手,结合有限元仿真技术进行提高385/65R22.5 24PR164J AM211宽基子午线轮胎耐久性能的研究。在骨架材料保持不变的基础上,对胎面肩部口型进行优化设计,合理配置带束层宽度,使轮胎的耐久... 详细信息

从骨架材料、胎肩垫胶、胎面和带束层宽度等方面入手,结合有限元仿真技术进行提高385/65R22.5 24PR164J AM211宽基子午线轮胎耐久性能的研究。在骨架材料保持不变的基础上,对胎面肩部口型进行优化设计,合理配置带束层宽度,使轮胎的耐久性能提高了30%。

关键词：宽基轮胎子午线轮胎带束层有限元分析耐久性能

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Recent progress in advanced core-shell metal-based catalysts for electrochemical carbon dioxide reduction

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Chinese Chemical Letters 2022年第5期33卷 2259-2269页

作者： Fengqi Wang Wenlong Zhang Hongbin Wan Chenxi Li Wankai An Xia Sheng Xiaoyu Liang xiaopeng Wang Yunlai ren Xin Zheng Dongcan Lv Yuchen Qin College of Sciences Henan Agricultural UniversityZhengzhou 450000China Oilfield Technology Research Institute of Fengcheng Oilfield Operation Area Xinjiang Oilfield CompanyKaramay 834000China College of Life Science Chongqing Normal UniversityChongqing 401331China

Electrochemical carbon dioxide reduction(CO_(2)RR)plays an important role in solving the problem of high concentration of CO_(2)in the atmosphere and realizing carbon ***-shell structure has many unique features including tandem catalysis,lattice strain effect,defect engineering,which exhibit great potential in *** this review,we focus on the advanced core-shell metal-based catalysts(CMCs)for electrochemical CO_(2)*** recent progress of CMCs in electrocatalytic CO_(2)RR is described as the follow-ing aspects:(1)The mechanism of electrochemical CO_(2)RR and evaluation parameters of electrocatalyst performance,(2)preparation methods of core-shell metal catalysts and core-shell structural advantages and(3)advanced CMCs towards electrochemical CO_(2)***,we make a brief conclusion and propose the opportunities and challenges in the field of electrochemical CO_(2)RR.

关键词： CMCs Electrochemical CO_(2)RR Tandem catalysis Lattice strain effect Defect engineering

“招娣/弟”命名偏好的省际差异及宗族文化的影响

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心理技术与应用 2024年第3期12卷 129-136,146页

作者：任孝鹏余俊霏万路明李江玥张子言李婵娟中国科学院心理研究所北京100101 中国科学院大学心理学系北京100049 中关村中学北京100086

“招娣/弟”是个有明确涵义的名字,它在群体层面上能够反映命名者的男孩偏好社会价值取向。通过档案资料建构了省级层面的宗族文化及“招娣/弟”比例等数据,卡方检验证实“招娣/弟”比例存在省际差异。同时探讨了宗族文化对这种差异的影... 详细信息

“招娣/弟”是个有明确涵义的名字,它在群体层面上能够反映命名者的男孩偏好社会价值取向。通过档案资料建构了省级层面的宗族文化及“招娣/弟”比例等数据,卡方检验证实“招娣/弟”比例存在省际差异。同时探讨了宗族文化对这种差异的影响,相关分析和回归分析支持宗族文化正向预测“招娣/弟”比例的差异,宗族文化越强的省“招娣/弟”比例越高。

关键词： “招娣/弟”比例宗族文化男孩偏好家谱名字