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多代理系统和黑板模型结合的全景电网拓扑分析

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电工技术学报 2014年第12期29卷 200-210页

作者：郝广涛韩学山梁军梁正堂山东大学电网智能化调度与控制教育部重点实验室济南250061

未来电力系统的调度与控制必将面临发电、输电、配电和用电有机关联、不可分割的局面,面临的一个基础的问题就是电网的全景拓扑。由于电网全景信息处于分散、关联的存储管理方式,使传统集中式的拓扑分析方法面临挑战。对此,在广域环境下... 详细信息

未来电力系统的调度与控制必将面临发电、输电、配电和用电有机关联、不可分割的局面,面临的一个基础的问题就是电网的全景拓扑。由于电网全景信息处于分散、关联的存储管理方式,使传统集中式的拓扑分析方法面临挑战。对此,在广域环境下,提出了多代理系统(MAS)结合黑板模型的全景电网拓扑分析方法。首先,提出了厂站MAS拓扑分析方法,使各厂站能够分散、独立且并行地完成各自的拓扑分析;然后,基于黑板模型,提出了厂站间拓扑分析的通信、协调规则和方法,从而完成全景拓扑分析。通过对实际系统的仿真验证,表明了所提方法的有效性。

关键词：未来电力系统全景电网拓扑分析集中多代理系统黑板模型分散

The effects of different intensity exercise on DEN-induced hepatocellular tumorigenesis and liver lactate metabolism

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The effects of different intensity exercise on DEN-induced h...

如何让研发人员“乐在其中”——营造促进创新的玩兴氛围

2.19中国生理学会学术年会暨张锡钧基金第十五届全国青年优秀生理学学术论文交流会及第十三届全国青年生理学工作者学术会议

作者：曹露 Zhang Xue Ji Benlong Qi zhengtang Ding Shuzhe Key Laboratory of Adolescent Health Assessment and Exercise Intervention of Ministry of Education East China Normal University School of Physical Education & Health Care East China Normal University

Purpose: even under normoxic conditions, glycolysis is selected by cancer cells as the primary pathway for ATP synthesis and produce a large amount of lactate, this phenomenon is called aerobic glycolysis or Warburg Effect, which is regarded as one of major hallmarks of cancer *** is not only a waste production of glycolysis, but also an important signaling molecule to regulate *** acidifies the tumor microenvironment, promoting tumor cell proliferation,immune escape, cell migration, metastasis and ***, exercise result in the increase of *** is suspectable whether exercise-induced lactate promote ***, the relationship among exercise, lactate and cancer is still *** primary purpose of our investigation was to compare the anti-tumor effect between moderate intensity endurance exercise and high intensity interval exercise from the perspective of lactate ***:three-weeks old male mice were randomly allocated to four *** group: negative control,mice were injected intraperitoneally with saline once a week for 10 weeks(n=10).DEN group: mice were injected intraperitoneally with DEN once a week for 10 weeks(n=10).HIT group: mice were injected intraperitoneally with DEN once a week for 10 weeks, running on the treadmill at 1.5 km/h,alternating running 2.minutes with 2.minutes rest for 40 minutes once a day, 5 days a week, a total of18 weeks(n=10).ET group: mice were injected intraperitoneally with DEN once a week for 10 weeks,running on the treadmill at o.8 km/h for 40 minutes once a day, 5 days a week, a total of 18 weeks(n=10).ELISA, RT-PCR and WB were used to evaluate relative serum indicators, relative mRNA and protein expression related to lactate ***: The results indicate that tumor incidence was similar between DEN and HIT(66.7% VS 62.5%), however, it was significantly smaller in ET compared with DEN and HIT(2.% VS 66.7%, 2.% VS 62.5%).The fat percentage of

关键词： liver cancer lactate moderate intensity endurance exercise high intensity interval exercise mitochondria diethylnitrosamine

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中国人力资源开发 2009年第7期26卷 27-30页

作者：张正堂南京大学

成人的工作玩兴是一个被忽视的话题。企业是约束研发人员的"玩兴",还是正视职场中的玩兴话题,加以疏导?本文对玩兴及团队玩兴氛围的概念进行了解释,通过理论、实证和企业实例说明玩兴氛围对创造力的积极影响,并提出了营造团队玩兴氛围... 详细信息

成人的工作玩兴是一个被忽视的话题。企业是约束研发人员的"玩兴",还是正视职场中的玩兴话题,加以疏导?本文对玩兴及团队玩兴氛围的概念进行了解释,通过理论、实证和企业实例说明玩兴氛围对创造力的积极影响,并提出了营造团队玩兴氛围的主要途径。

关键词：玩兴团队玩兴氛围创新研发人员

Boosting in-plane anisotropy by periodic phase engineering in two-dimensional VO_(2. single crystals

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Fundamental Research 2022年第3期2卷 456-461页

作者： Meng Ran Chao Zhao Xiang Xu Xiao Kong Younghee Lee Wenjun Cui Zhi-Yi Hu Alexander Roxas zhengtang Luo Huiqiao Li Feng Ding Lin Gan Tianyou Zhai State Key Laboratory of Materials Processing and Die and Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China Centre for Multidimensional Carbon Materials Institute for Basic ScienceSchool of Materials Science and EngineeringUlsan National Institute of Science and TechnologyUlsanSouth Korea Center for Integrated Nanostructure Physics Institute for Basic ScienceSungkyunkwan UniversitySuwonSouth Korea State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Nanostructure Research CentreWuhan University of TechnologyWuhan 430074China Department of Chemical and Biological Engineering The Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina

In-plane anisotropy(IPA)due to asymmetry in lattice structures provides an additional parameter for the precise tuning of characteristic polarization-dependent properties in two-dimensional(2.)materials,but the narrow range within which such method can modulate properties hinders significant development of related *** we present a novel periodic phase engineering strategy that can remarkably enhance the intrinsic IPA obtainable from minor variations in asymmetric *** introducing alternant monoclinic and rutile phases in 2. VO_(2.single crystals through the regulation of interfacial thermal strain,the IPA in electrical conductivity can be reversibly modulated in a range spanning two orders of magnitude,reaching an unprecedented IPA of *** an intriguing local phase engineering in 2. materials can be well depicted and predicted by a theoretical model consisting of phase transformation,thermal expansion,and friction force at the interface,creating a frame-work applicable to other 2. ***,the considerable adjustability and reversibility of the presented strategy provide opportunities for future polarization-dependent photoelectric and optoelectronic devices.

关键词： Periodic phase engineering Two-dimensional VO_(2. Interfacial strain In-plane anisotropy Electrical anisotropy Chemical vapor deposition

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服务业高绩效工作系统研究述评

管理学报 2014年第5期11卷 772-779页

作者：李瑞张正堂南京大学商学院江苏企业人才发展研究基地

传统的高绩效工作系统研究大多针对制造业,如何利用高绩效工作系统来提升服务业的组织绩效成为战略人力资源管理的新领域。目前,我国学者在服务业高绩效工作系统领域的研究还相对较少。鉴于此,对服务业高绩效工作系统的内容结构、实施... 详细信息

传统的高绩效工作系统研究大多针对制造业,如何利用高绩效工作系统来提升服务业的组织绩效成为战略人力资源管理的新领域。目前,我国学者在服务业高绩效工作系统领域的研究还相对较少。鉴于此,对服务业高绩效工作系统的内容结构、实施效果与作用机制等有关研究进行了系统梳理,并对未来研究进行展望,试图为服务业高绩效工作系统的相关研究提供借鉴。

关键词：服务业高绩效工作系统内容结构作用机制实施效果

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水循环的地质演变:研究现状与关键问题

科学通报 2023年第12期68卷 1425-1442页

作者：朱茂炎郭正堂汪品先中国科学院南京地质古生物研究所现代古生物学和地层学国家重点实验室南京210008 中国科学院大学地球与行星科学学院北京100049 中国科学院地质与地球物理研究所中国科学院新生代地质与环境重点实验室北京100029 同济大学海洋与地球科学学院海洋地质国家重点实验室上海200092

由大陆-海洋-大气之间水的3种相态(固态-液态-气态)相互转换和位移构成的水循环,是地球气候系统的主要过程之一.太阳辐射量在地球表面分布不均匀,是地表水循环的基本驱动力.水循环与碳循环密切关联,是气候系统演变中的两条主线.不同时... 详细信息

由大陆-海洋-大气之间水的3种相态(固态-液态-气态)相互转换和位移构成的水循环,是地球气候系统的主要过程之一.太阳辐射量在地球表面分布不均匀,是地表水循环的基本驱动力.水循环与碳循环密切关联,是气候系统演变中的两条主线.不同时空尺度的水循环和碳循环受天文、地质和生物因素以及它们之间相互作用的控制,揭示水循环地质演变过程及其与气候变化之间的关系,可为了解当今水文气候变化提供宝贵启示.通过水循环地质演变研究现状回顾,提出如下5个科学问题应在未来予以重点关注:(1)雪球地球时期的水循环;(2.植被起源和演化对水循环的影响;(3)深时热带辐合带(inter-tropical convergence zone, ITCZ)的演变与水循环;(4)暖室期地下水与海平面变化;(5)深时水循环中的氧同位素示踪.同时建议我国未来亟须加强的4个研究方向:(1)深时冰室期向暖室期转变中的水循环;(2.深时水循环与生态系统演变;(3)深时水循环研究方法的发展;(4)深时水循环与长周期地球系统演变的数值模型.

关键词：水循环碳循环古气候学水文气候学地球系统演变

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基于快速终端滑模的汽车底盘集成控制

湖南大学学报（自然科学版） 2021年第2期48卷 1-9页

作者：张家旭施正堂杨雄赵健吉林大学汽车仿真与控制国家重点实验室吉林长春130011 中国第一汽车集团有限公司智能网联研发院吉林长春130011 浙江亚太机电股份有限公司浙江杭州311200

针对汽车主动前轮转向子系统和直接横摆力矩控制子系统的集成控制问题,基于快速终端滑模控制理论设计一种标定参数少和动态响应速度快的鲁棒集成控制器.首先,基于达朗贝尔原理建立包含车身侧向和横摆运动自由度的汽车动力学模型作为底... 详细信息

针对汽车主动前轮转向子系统和直接横摆力矩控制子系统的集成控制问题,基于快速终端滑模控制理论设计一种标定参数少和动态响应速度快的鲁棒集成控制器.首先,基于达朗贝尔原理建立包含车身侧向和横摆运动自由度的汽车动力学模型作为底盘集成控制模型.随后,基于快速终端滑模控制理论分别设计主动前轮转向控制律和直接横摆力矩控制律,并且通过汽车质心侧偏角相平面定义的平滑切换因子建立二者的切换规则,实现主动前轮转向子系统和直接横摆力矩控制子系统的平滑切换控制,并且将主动前轮转向子系统和直接横摆力矩控制子系统的主要工作区域分别控制在轮胎的线性区域和非线性区域.最后,结合车辆动力学仿真软件对所提出的鲁棒集成控制器的可行性和有效性进行验证,结果表明:所提出的底盘集成控制器可以同时兼顾汽车操纵稳定性和乘坐舒适性.

关键词：车辆工程底盘集成控制主动前轮转向直接横摆力矩控制快速终端滑模控制平滑切换控制

Hysteresis and thermomagnetic properties of particle-sized fractions from loess and palaeosol samples spanning 2. Myr of accumulation on the Chinese Loess Plateau

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Hysteresis and thermomagnetic properties of particle-sized f...

Extra-long interglacial in Northern Hemisphere during MISs 15-13 arising from limited extent of Arctic ice sheets in glacial MIS 14

中国科学院地质与地球物理研究所2.12.度（第12.）学术年会

作者： Qingzhen Hao Frank Oldfield Jan Bloemendal zhengtang Guo Key Laboratory of Cenozoic Geology and Environment Institute of Geology and GeophysicsChinese Academy of Sciences School of Environmental Sciences University of LiverpoolLiverpoolL69 7ZTUK

Hysteresis loop measurements and thermomagnetic experiments were carried out to characterize magnetic mineralogy and magnetic grain size in a suite of particle-size fractioned samples from the Chinese Loess Plateau,representing the main changes in magnetic properties over the last 2. Myr,We find that(1) the ferrimagnets in the detrital fractions(>8μm) younger than 14 Ma show a magnetite-type Curie temperature,whereas those older than 15 Ma have a Curie temperature slightly over 600℃owing to low-temperature oxidation.(2. The dominant ferrimagnets in the clay fractions(2.m) are most likely to be maghemite.(3) Both the hysteresis plots and thermomagnetic experiments reinforce previous indications from low-temperature experiments that paramagnetic minerals make a major contribution to the clay fractions in all the samples considered.(4) The degree of oxidation indicated by the thermomagnetic curves is highest in the clays and next highest in the oldest coarse fractions.(5) Day plots provide limited and potentially misleading information on the differences between fine-grained pedogenic and coarse-grained detrital ferrimagnetic assemblages,even when allowance is made for the effects of hematite on the quotients *** study reinforces the view that measurements on bulk samples alone obscure critical distinctions between pedogenic and detrital components.

关键词： Environmental magnetism Magnetic and electrical properties Asia

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Extra-long interglacial in Northern Hemisphere during MISs 1...