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集成电路应用 2024年第3期41卷 120-121页

作者：王作齐徐州三新供电服务有限公司丰县分公司江苏221700

阐述电能计量技术原理、系统组成、工作特点,介绍电能系统组网方式应用,包括无线组网方式、载波组网方式、低压电表实例。分析低压计量设备常见故障类型,提出应用建议。

关键词：计量电表微电子技术通信技术

红光补充UV-A对叶用莴苣倍半萜内酯类化合物的调控效应

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中国蔬菜 2024年第3期 51-58页

作者：田原源查凌雁王座祺段逸文魏仕伟章竞瑾上海交通大学农业与生物学院上海201100 上海市农业生物基因中心上海201100

叶用莴苣特有的苦味来源于倍半萜内酯类化合物,主要包括山莴苣苦素和莴苣苦素等。为探究紫外光对叶用莴苣生长和倍半萜内酯类化合物的调控作用,以纯红光(180μmol·m^(-2)·s^(-1))为对照,比较了补充UV-A(30μmol·m^(-2)·s^(-1))、UV-... 详细信息

叶用莴苣特有的苦味来源于倍半萜内酯类化合物,主要包括山莴苣苦素和莴苣苦素等。为探究紫外光对叶用莴苣生长和倍半萜内酯类化合物的调控作用,以纯红光(180μmol·m^(-2)·s^(-1))为对照,比较了补充UV-A(30μmol·m^(-2)·s^(-1))、UV-B(10μmol·m^(-2)·s^(-1))对7个叶用莴苣品种生长及倍半萜内酯类化合物的影响;并进一步分析了红外光添加UV-A补光强度(15、30、45μmol·m^(-2)·s^(-1))及补光时长(0、1、2、3、6、9 d)对叶用莴苣倍半萜内酯类化合物含量的影响。结果表明:添加UV-A处理可显著提高绿罗的地上部鲜质量,显著降低7个叶用莴苣品种的山莴苣苦素和莴苣苦素含量,分别降低了33%~74%和29%~60%。随着UV-A补光强度的增加,叶用莴苣中倍半萜内酯类化合物含量逐渐降低,且以添加30μmol·m^(-2)·s^(-1)UV-A处理2 d后叶用莴苣中山莴苣苦素含量迅速上升,处理3 d时达到峰值,随后逐渐降低;而莴苣苦素含量在处理2 d后基本保持逐步上升的趋势,处理6~9 d时略有下降。综上所述,红光补充适量的UV-A(30μmol·m^(-2)·s^(-1)、3~6 d),可在不影响生物量的基础上显著降低叶用莴苣中倍半萜内酯类化合物含量,从而减轻苦味。

关键词：叶用莴苣紫外光 UV-A 山莴苣苦素莴苣苦素

GPIBase:A comprehensive resource for geminivirus-plant-insect research

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Molecular Plant 2023年第4期16卷 647-649页

作者： Yaqin wang Yang Mei Chenlu Su zuoqi wang Fangfang Li Tao Hu Zhanqi wang Shusheng Liu Fei Li Xueping Zhou State Key Laboratory of Rice Biology College of Agriculture and BiotechnologyZhejiang UniversityHangzhou 310058China State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193China Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province College of Life SciencesHuzhou UniversityHuzhou 313000China These authors contributed equally to this article

Dear Editor,As one of the most widespread and destructive families of plant viruses,Geminiviridae,named for the twinned icosahedral particles of virus members in the family,poses a serious threat to agricultural production *** by various homopterans insects such as whiteflies,leafhoppers,aphids,and treehoppers,geminiviruses infect,in addition to wild plants,vegetable,root,and fiber crops,thus causing important losses around the globe(Hanley-Bowdoin et al.,2013;Li et al.,2022).

关键词： crops comprehensive resource

Maternal Preconception Serum Alanine Aminotransferase Levels and Risk of Preterm Birth among Reproductive-Aged Women—China,2013-2017

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China CDC weekly 2024年第10期6卷 181-188,I0001页

作者： Chuanyu Zhao Jiajing Jia Hanbin Wu Qin Xu Xinyi Lyu Meiya Liu Xuan Hu Jueming Lei Yuzhi Deng Yuan He Yuanyuan wang zuoqi Peng Ya Zhang Hongguang Zhang Qiaomei wang Haiping Shen Yiping Zhang Donghai Yan Ying Yang Xu Ma National Research Institute for Family Planning BeijingChina National Human Genetic Resources Center BeijingChina Graduate School of Peking Union Medical College BeijingChina Department of Epidemiology Fuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina

Summary What is already known about this topic?The significance of maternal liver health concerning preterm birth(PTB)is well recognized;however,there is a gap in understanding the precise influence of preconception s... 详细信息

关键词： Serum precise concerning

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经济学界聚焦通货紧缩的对话

中共乐山市委党校学报 2001年第1期3卷 10-11页

作者：王佐旗中共广东省云浮市委党校

通货紧缩作为一种经济现象,其是否出现,其特征、成因以及中国现阶段应采取何种对策等等,经济学界对此提出了众多真知灼见。在此归纳总结经济学界和经济工作者不同观点,综述通货紧缩。一、通货紧缩是否存在论 1.不存在通货紧缩。1999年3... 详细信息

通货紧缩作为一种经济现象,其是否出现,其特征、成因以及中国现阶段应采取何种对策等等,经济学界对此提出了众多真知灼见。在此归纳总结经济学界和经济工作者不同观点,综述通货紧缩。一、通货紧缩是否存在论 1.不存在通货紧缩。1999年3月11日,中国人民银行长长戴相龙在答中外记者问题“中国是否出现通货紧缩现象”时说,“出现通货紧缩要有两个重要条件,第一是物价连续下降和货币供应量连续下降,第二是经济萧条,表现为两个季度经济出现负增长。这样的情况在中国是不完全存在的。中国物价指数在前两年连续下降,主要与农产品价格下降有关,不完全是货币供应量减少的原因。从货币供应量来看,广义货币这两年都比上年增长15％,不是下降而是上升。从经济发展来说,这两年不是衰退而是持续快速增长,分别为8.8％和7.8％。我认为现在中国还不存在通货紧缩,但是我们要预防通货紧缩”。认为目前我国只出现不“通货紧缩”的某种迹象,但整体上没有出现通货紧缩。

关键词：通货紧缩成因过剩经济企业经济效益经济总体创新能力收入差距治理货币政策财政政策经济结构升级

Association of psychological stress with wives’hypertension across over 10 million Chinese married female population aged 20-49 years

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Chinese Medical Journal 2024年第13期137卷 1583-1591页

作者： Zhenyan Zhao Jiajing Jia Xinyi Lyu Lihua Zhang Yuanyuan wang Yuan He zuoqi Peng Ya Zhang Hongguang Zhang Qiaomei wang Haiping Shen Yiping Zhang Donghai Yan Xu Ma Ying Yang State Key Laboratory of Cardiovascular Disease Department of CardiologyFuwai HospitalNational Center for Cardiovascular DiseaseChinese Academy of Medical Science and Peking Union Medical CollegeBeijing 100037China National Research Institute for Family Planning Beijing 100081China National Human Genetic Resources Center Beijing 102206China Graduate School of Peking Union Medical College Beijing 100730China Department of Maternal and Child Health National Health and Family Planning Commission of the PRCBeijing 100044China

Background:Psychological stress has been reported to be a potential risk factor for hypertension among females,but it remains unclear whether spousal chronic stress levels alter the risk of hypertension among *** examined the associations between stress within the family and hypertension among married ***:Reproductive-aged women who were planning for pregnancy and their husbands were recruited from the National Free Pre-pregnancy Checkup Projects(NFPCP)across 31 provinces in China in 2016 and *** stress of wives or husbands was measured with a 5-point Likert-type scale,and assessed from three domains:work/life-related stress,economic stress,and overall ***-adjusted logistic regression models were used to assess the associations between stress status and the prevalence of ***:Of 10,027,644 couples,261,098(2.60%)women had *** results showed that higher stress levels among themselves or their husbands were associated with a higher prevalence of hypertension in women(P_(for trend)<0.001).Compared with non-stressed participants,female participants with the highest stress themselves were at a greater risk of hypertension,with adjusted odds ratio(OR)of 1.31(95%confidence interval[CI]:1.25-1.37);and compared with participants whose husbands had no stress,those whose husbands had the highest stress level were at a higher risk of hypertension with adjusted OR of 1.24(95%CI:1.20-1.29).Moreover,compared with non-stressed status for both couples,only-wife-stressed,only-husband-stressed,and both-stressed couples were found to be significantly associated with increased risks of wives’hypertension,with adjusted ORs of 1.28(95%CI:1.25-1.31),1.19(95%CI:1.17-1.21),and 1.28(95%CI:1.26-1.31),***:Moderate to severe stress in both spouses might be associated with female hypertension prevalence,which highlights the importance of paying attention to the psychological stresses of couples within the f

关键词： Psychological stress Hypertension Occupational stress Life stress Financial stress

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知识形态、产业分类与新经济统计

济宁学院学报 2008年第2期29卷 65-67页

作者：王佐旗朱正国中共云浮市委党校云浮市广播电视大学广东云浮527300

以知识的层次形态为标准对社会经济活动和职业进行统一分类,能够满足产业分类的基本要求,并能够避免其他产业划分方法所带来的混乱;这种分类便于正在形成的新经济形态进行统一产业统计与科学测评,且这种测评与人和社会本身的发展及可持... 详细信息

以知识的层次形态为标准对社会经济活动和职业进行统一分类,能够满足产业分类的基本要求,并能够避免其他产业划分方法所带来的混乱;这种分类便于正在形成的新经济形态进行统一产业统计与科学测评,且这种测评与人和社会本身的发展及可持续发展的要求是一致的,因为它反映了由知识层次提升过程所推动的产业递进的过程、节约资源和完善循环经济的科学化过程。

关键词：知识形态产业分类产业统计

The reformation of catalyst:From a trial-and-error synthesis to rational design

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Nano Research 2024年第4期17卷 3261-3301页

作者： Ligang wang Jiabin Wu Shunwu wang Huan Liu Yao wang Dingsheng wang Department of Chemistry Tsinghua UniversityBeijing 100084China

The appropriate catalysts can accelerate the reaction rate and effectively boost the efficient conversion of various molecules,which is of great importance in the study of chemistry,chemical industry,energy,materials and environmental ***,efficient,environmentally friendly,and easy to operate synthesis methods have been used to prepare various types of *** previous studies have reported the synthesis and characterization of the aforementioned catalysts,more still remain in trial and error methods,without in-depth consideration and improvement of traditional synthesis ***,we comprehensively summarize and compare the preparation methods of the trial-and-error synthesis strategy,structure–activity relationships and density functional theory(DFT)guided catalysts rational design for nanomaterials and atomically dispersed *** also discuss in detail the utilization of the nanomaterials and single atom catalysts for converting small molecules(H_(2)O,O_(2),CO_(2),N_(2),etc.)into value-added products driven by electrocatalysis,photocatalysis,and ***,the challenges and outlooks of mass preparation and production of efficient and green catalysts through conventional trial and error synthesis and DFT theory are featured in accordance with its current development.

关键词： trial-and-error synthesis structure–activity relationships density functional theory(DFT)guidance nanomaterials atomically dispersed catalysts

Numerical Analysis of PRISM-PY Calculations for Hard-and Soft-Core Generic Polymer Models

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Chinese Journal of Polymer Science 2024年第4期42卷 532-543页

作者： Qiang wang Department of Chemical and Biological Engineering Colorado State University1370 Campus DeliveryFort CollinsCO80523-1370USA

Generic polymer models capturing the chain connectivity and excluded-volume interactions between polymer segments can be classified, according to whether or not the 3D integral of the latter diverges, into hard- and soft-core models. Taking homogeneous systems of compressible homopolymer melts (or equivalently homopolymer solutions in an implicit, good solvent) in the continuum as an example, we recently compared the correlation effects on the structural and thermodynamic properties of the hard- and soft-core models given by the polymer reference interaction site model (PRISM) theory with the Percus-Yevick (PY) closure (Polymers 2023, 15, 1180). Here we analyzed in detail the numerical errors and behavior of the interchain pair correlation functions (PCFs) given by the PRISM-PY calculations of these models using an efficient numerical approach that we proposed. Our numerical approach has the least number of independent variables to be iteratively solved, analytically treats the discontinuities caused by the non-bonded pair potential (such as that of the hard spheres) and takes only the inverse Fourier transform of the interchain indirect PCF between polymer segments (which is continuous and decays towards 0 with increasing wavenumber much faster than both the interchain direct and total PCFs), and is essential for us to accurately solve the PRISM-PY theory for chain length N as large as 106. To capture the correlation-hole effect, the real-space cut-off in the PRISM calculations should be proportional to the square root of N.

关键词： Generic polymer models Soft potentials Polymer reference interaction site model theory

Linear-Quadratic Pareto Cooperative Game for Mean-Field Backward Stochastic System

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Journal of Systems Science & Complexity 2024年第3期37卷 947-964页

作者： wang Yu School of Control Science and Engineering Shandong UniversityJinan 250061China

This paper focuses on a Pareto cooperative differential game with a linear mean-field backward stochastic system and a quadratic form cost functional. Based on a weighted sum optimality method, the Pareto game is equivalently converted to an optimal control problem. In the first place,the feedback form of Pareto optimal strategy is derived by virtue of decoupling technology, which is represented by four Riccati equations, a mean-field forward stochastic differential equation(MF-FSDE),and a mean-field backward stochastic differential equation(MF-BSDE). In addition, the corresponding Pareto optimal solution is further obtained. Finally, the author solves a problem in mathematical finance to illustrate the application of the theoretical results.

关键词： Backward stochastic differential equation linear-quadratic control mean-field Pareto optimality