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Regioselective synthesis of α-bromo-α,β-unsaturated carbonyl compounds via photocatalytic α-bromination reactions

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Science China Chemistry 2016年第2期59卷 190-194页

作者： Dan Wang yating zhao Chao Yang Wujiong Xia State Key Laboratory of Urban Water Resource and Environment Shenzhen Graduate School Harbin Institute of Technology

A visible light-mediated approach for the preparation of α-bromo-α,β-unsaturated ketones and aldehydes was developed. In comparison to traditional methods that generally take two steps to afford the above compounds, this protocol was highlighted by its operational simplicity, avoiding using hazardous bromine and mild reaction conditions.

关键词： visible light α-bromination α β-unsaturated ketones and aldehydes operational simplicity

Chloride Corrosion of Reinforced Calcium Aluminate Cement Mortar

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Journal of Wuhan University of Technology(Materials Science) 2023年第1期38卷 79-87页

作者：陈钰婷吴凯徐玲琳 WANG Zhongping zhao yating ZHU Zheyu Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education School of Materials Science and EngineeringTongji UniversityShanghai 201804China Henan Provincial Communications Planning&Design Institute Co. LtdZhengzhou 450052China

This paper describes a study on the corrosion behavior of steel reinforcement in CAC mortars via electrochemical methods including corrosion potential,electrochemical impedance,and linear polarization *** indicate that there is a non-linear relationship between the corrosion degree of steel reinforcement in CAC mortar and the concentration of NaCl *** electrochemical parameters of specimens immersed in 3%NaCl solution suddenly drop at 40 days,earlier than 60 days of the *** the charge transfer resistivity of the specimen has decreased by 11 orders of magnitude at 40 days,showing an evident corrosion on steel ***,it is interesting to notice that the corrosion is delayed by high external chloride *** specimens immersed in 9%and 15%NaCl solutions remain in a relatively stable state within 120 days with slight *** great corrosion protection of CAC concrete to embedded steel bars enables its wide application in marine.

关键词： electrochemical impedance calcium aluminate cement mortar chloride corrosion

Assessment of Wet Season Precipitation in the Central United States by the Regional Climate Simulation of the WRFG Member in NARCCAP and Its Relationship with Large-Scale Circulation Biases

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Advances in Atmospheric Sciences 2024年第4期41卷 619-638页

作者： yating zhao Ming XUE Jing JIANG Xiao-Ming HU Anning HUANG School of Atmospheric Sciences Nanjing UniversityNanjing 210023China Center for Analysis and Prediction of Storms and School of Meteorology The University of OklahomaNorman 73072U.S.A

Assessment of past-climate simulations of regional climate models(RCMs)is important for understanding the reliability of RCMs when used to project future regional ***,we assess the performance and discuss possible causes of biases in a WRF-based RCM with a grid spacing of 50 km,named WRFG,from the North American Regional Climate Change Assessment Program(NARCCAP)in simulating wet season precipitation over the Central United States for a period when observational data are *** RCM reproduces key features of the precipitation distribution characteristics during late spring to early summer,although it tends to underestimate the magnitude of *** dry bias is partially due to the model’s lack of skill in simulating nocturnal precipitation related to the lack of eastward propagating convective systems in the *** in reproducing large-scale circulation and environmental conditions is another contributing *** too weak simulated pressure gradient between the Rocky Mountains and the Gulf of Mexico results in weaker southerly winds in between,leading to a reduction of warm moist air transport from the Gulf to the Central Great *** simulated low-level horizontal convergence fields are less favorable for upward motion than in the NARR and hence,for the development of moist convection as ***,a careful examination of an RCM’s deficiencies and the identification of the source of errors are important when using the RCM to project precipitation changes in future climate scenarios.

关键词： NARCCAP Central United States precipitation low-level jet large-scale environment diurnal variation

The relationships between maize(Zea mays L.)lodging resistance and yield formation depend on dry matter allocation to ear and stem

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The Crop Journal 2023年第1期11卷 258-268页

作者： Ping Zhang Shuangcheng Gu Yuanyuan Wang Chenchen Xu yating zhao Xiaoli Liu Pu Wang Shoubing Huang College of Agronomy and Biotechnology China Agricultural UniversityBeijing 100193China College of Agronomy South China Agricultural UniversityGuangzhou 510642GuangdongChina

Lodging is a critical constraint to yield *** appear to be tradeoffs between yield formation and lodging resistance in ***,it is feasible to reduce lodging risk as well as increase grain yield by optimizing dry-matter allocation to different organs under different environments.A three-year field experiment was conducted using four maize cultivars with differing lodging resistances and five growing environments in 2018–***-susceptible(LS)cultivars on average yielded more than lodging-resistant(LR)cultivars when lodging was not *** yield components kernel number per ear(KN)and thousand-kernel weight(TKW)were both negatively correlated with lodging resistance traits(stalk bending strength,rind penetration strength,and dry matter weight per internode length).Before silking,the LR cultivar Lishou 1(LS1)transported more assimilates to the basal stem,resulting in a thicker basal stem,which reduced dry matter allocation to the ear and in turn *** lower KN of LS1 was also due partly to the lower plant height(PH),which increased lodging resistance but limited plant dry matter *** contrast,the LS cultivars Xianyu 335(XY335)and Xundan 20(XD20)produced and allocated more photoassimilates to ears,but limited dry matter allocation to *** silking,LS cultivars showed higher TKW than LR cultivars as a function of high photoassimilate productivity and high assimilate allocation to the *** higher lodging resistance of LS1 was due mainly to the greater assimilate allocation to stem after silking and lower PH and ear height(EH).High-yielding and high-LR traits of Fumin(FM985)were related to optimized EH and stem anatomical structure,higher leaf productivity,low assimilate demand for kernel formation,and assimilate partitioning to ear.A high presilking temperature accelerated stem extension but reduced stem dry matter accumulation and basal stem ***-silking temperature influences lodging resistance and yield m

关键词： Corn Lodging Yield formation Physical traits Dry matter allocation

Optimal Dispatch and Pricing of Industrial Parks Considering CHP Mode Switching and Demand Response

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CSEE Journal of Power and Energy Systems 2024年第5期10卷 2174-2185页

作者： yating zhao Zhi Wu Wei Gu Jingxuan Wang Fujue Wang Zhoujun Ma Minqiang Hu School of Electric Engineering Southeast UniversityNanjing 210096China College of Energy and Electrical Engineering Hohai UniversityNanjing 210098China State Grid Jiangsu Electric Power Company Nanjing 210019China

Industrial parks(IPs)play a crucial role in facilitating economic efficiency and comprehensive energy utilization in the industrial *** the same time,multi-energy coupling and management of various types of energy in IP have become serious *** this paper,combined heat and power unit(CHP)model considering operation mode switching characteristics is formulated by exploring its internal composition to improve output flexibility of the energy supply ***,heat and electricity integrated energy system(HE-IES)optimal dispatch and pricing model are established,taking electricity and heat demand response strategy and steam thermal inertia property into *** on the above models,a mixed-integer bilinear programming framework is designed to coordinate the day-ahead operation and pricing strategy of the HE-IES in the *** scenario study is carried out on a practical industrial park in Southern *** results indicate the proposed mechanism can effectively improve IP’s energy utilization and economic efficiency.

关键词： CHP mode switching demand response Industrial park pricing strategy steam heating network

Mitogen-activated protein kinase 14-mediated phosphorylation of MaMYB4 negatively regulates banana fruit ripening

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Horticulture Research 2023年第1期10卷 220-231页

作者： Yingying Yang Chaojie Wu Wei Shan Wei Wei yating zhao Jianfei Kuang Jianye Chen Yueming Jiang Wangjin Lu State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation Ministry of EducationCollege of HorticultureSouth China Agricultural UniversityGuangzhou 510642China South China Botanical Garden Chinese Academy of SciencesGuangzhou 510650China

Mitogen-activated protein kinase(MAPK/MPK)cascades play crucial parts in plant growth,development processes,immune ability,and stress responses;however,the regulatory mechanism by which MAPK affects fruit ripening remains largely ***,we reported that MaMPK14 cooperated with MaMYB4 to mediate postharvest banana fruit *** overexpression of individual MaMPK14 and MaMYB4 in banana fruit delayed fruit ripening,confirming the negative roles in the *** ripening negative regulator MaMYB4 could repress the transcription of genes associated with ethylene biosynthesis and fruit softening,such as MaACS1,MaXTH5,MaPG3,and ***,MaMPK14 phosphorylated MaMYB4 at Ser160 via a direct *** at Ser160 of MaMYB4 reduced its interaction with MaMPK14 but did not affect its subcellular ***,phosphorylation of MaMYB4 by MaMPK14 enhanced the MaMYB4-mediated transcriptional inhibition,binding strength,protein stability,and the repression of fruit *** together,our results delineated the regulation pathway of MAPK module during banana fruit ripening,which involved the phosphorylation modification of MaMYB4 mediated by MaMPK14.

关键词： interaction. fir banana

Analysis of the EU's Security-Development Nexus Aid Policy in Africa and Agenda 2063

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Contemporary International Relations 2016年第1期26卷 59-72,4-5页

作者： Liu Qingjian zhao yating Center for European Studies Renmin University of China

With the security situation in Africa looking pessimistic since the beginning of the 21st century, the EU has adjusted its ODA policy in Africa by linking it to security issues. The EU has been carrying out a number of security-development aid projects and these have seen some positive results. However, shortcomings have been identified. Even so, it is of historic significance that African nations are working more closely with the EU in the areas of security and aid under the framework of Agenda 2063.

关键词： Africa shortcomings Nexus looking cooperation carrying linking historic beginning adjusted

Epidemic Characteristics and Spatio-Temporal Patterns of HFRS in Qingdao City,China,2010-2022

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Biomedical and Environmental Sciences 2024年第9期37卷 1015-1029页

作者： Ying Li Runze Lu Liyan Dong Litao Sun Zongyi Zhang yating zhao Qing Duan Lijie Zhang Fachun Jiang Jing Jia Huilai Ma Chinese Field Epidemiology Training Program Chinese Center for Disease Control and PreventionBeijing 100050China National Institute for Viral Disease Control and Prevention Chinese Center for Disease Control and PreventionBeijing 102206China Qingdao Municipal Center for Disease Control and Prevention Qingdao 266024ShandongChina Jiaozhou Center for Disease Control and Prevention Qingdao 266399ShandongChina Institute for Infectious Disease Control and Prevention Shandong Center for Disease Control and PreventionJinan 250013ShandongChina Office of Epidemiology(Technical Guidance Office for Patriotic Health Work) Chinese Center for Disease Control and PreventionBeijing 102206China

Objective This study investigated the epidemic characteristics and spatio-temporal dynamics of hemorrhagic fever with renal syndrome(HFRS)in Qingdao City,*** Information was collected on HFRS cases in Qingdao City from 2010 to *** epidemiologic,seasonal decomposition,spatial autocorrelation,and spatio-temporal cluster analyses were *** A total of 2,220 patients with HFRS were reported over the study period,with an average annual incidence of 1.89/100,000 and a case fatality rate of 2.52%.The male:female ratio was 2.8:1.75.3%of patients were aged between 16 and 60 years old,75.3%of patients were farmers,and 11.6%had both“three red”and“three pain”*** HFRS epidemic showed two-peak seasonality:the primary fall-winter peak and the minor spring *** HFRS epidemic presented highly spatially heterogeneous,street/township-level hot spots that were mostly distributed in Huangdao,Pingdu,and *** spatio-temporal cluster analysis revealed three cluster areas in Qingdao City that were located in the south of Huangdao District during the fall-winter *** The distribution of HFRS in Qingdao exhibited periodic,seasonal,and regional characteristics,with high spatial clustering *** typical symptoms of“three red”and“three pain”in patients with HFRS were not obvious.

关键词： Hemorrhagic fever with renal syndrome Epidemic characteristics Spatio-temporal distribution

Microencapsulated Lactobacillus plantarum promotes intestinal development through gut colonization of layer chicks

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Animal Nutrition 2024年第3期18卷 1-16页

作者： Yaoming Cui Yanxia Liu Jing Yang Haitao Duan Peng Wang Linna Guo Yanjiao Guo Suying Li yating zhao Jinrong Wang Guanghai Qi Junjun Guan School of Biological Engineering Henan University of TechnologyZhengzhouHenan 450001China College of Animal Science and Technology Henan University of Animal Husbandry and EconomyZhengzhouHenan 450046China Feed Research Institute Chinese Academy of Agricultural SciencesBeijing 100081China

The effects of Lactobacillus plantarum in microencapsulation(LPM)on intestinal development in layer chicks were investigated in this study,as well as the colonization of *** in the gut.A total of 480 healthy Hy-Line Brown layer chicks at 0 d old were randomly divided into 4 groups(8 replicates each treatment),and the diets of these birds were supplemented with nothing(control),***(0.02 g/kg feed;10^(9) CFU/kg feed),LPM(1.0 g/kg feed;109 CFU/kg feed)and wall material of LPM(WM;0.98 g/kg feed),*** to control,LPM improved growth performance and intestinal development of layer chicks,evidenced by significantly increased body weight,average daily gain,average daily feed intake,villus height,villus height/crypt depth,as well as weight and length of the duodenum,jejunum and ileum(P<0.05).These results could be attributed to the increased colonization of *** in the gut,which was verified by significant increases in lactic acid content,viable counts in chyme and mucosa(P<0.05),as well as a visible rise in number of strains labeled with fluorescein ***,the relative abundances of Lactobacillus and Bifidobacterium significantly increased in response to microencapsulated *** supplementation(P<0.05),accompanied by the significant up-regulation of colonization related genes(P<0.05),encoding solute carrier family,monocarboxylate transporter,activin A receptor,succinate receptor and secretogranin *** sum up,microencapsulated *** supplementation promoted intestinal development,which could be attributed to the enhancement of *** colonization in the intestine through the mutual assistance of Bifidobacterium and interactions with colonization related transmembrane proteins.

关键词： Intestinal development Colonization Microbiota Layer chick Lactobacillus plantarum