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财务共享服务模式下集团企业资金集中管理的问题及建议

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市场周刊 2024年第13期37卷 138-141页

作者：郑兴花四川浙金钢材有限公司四川成都610000

近年来,信息服务共享中心的种类和数目越来越多,各行业企业及大型公司都想通过建立财务共享中心这一方式来提高自身的经营管理能力,使财务转型工作顺利进行,进而使自身的资本运作更加顺畅。一般情况下,集团企业为扩大市场规模,纷纷跨地... 详细信息

近年来,信息服务共享中心的种类和数目越来越多,各行业企业及大型公司都想通过建立财务共享中心这一方式来提高自身的经营管理能力,使财务转型工作顺利进行,进而使自身的资本运作更加顺畅。一般情况下,集团企业为扩大市场规模,纷纷跨地域建立分支机构,以规模化、体系化的运营方式争夺优势资源并稳固自身竞争力,这就使得集团企业的管理难度加大,资金周转压力骤增。因此,文章对财务共享服务模式下集团企业资金集中管理的问题进行分析,针对出现的问题提出相应的解决办法,以期集团企业顺利进行资金集中管理工作。

关键词：财务共享服务集团企业资金集中管理问题及对策

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“灭刘氏者龚也”:南汉宦官政治新探

唐都学刊 2024年第1期40卷 77-84页

作者：傅绍磊郑兴华宁波财经学院象山影视学院浙江宁波315175 宁波财经学院人文学院浙江宁波315175

刘谦、刘隐出身岭南地方豪强,因为文化弱势而积极与士人合作,坚持士人政治。刘䶮在位期间一直没有解决权力合法性问题,难以改变相对于士人的文化弱势处境,从而对士人不满,质疑士人政治,逐渐以宦官制衡士人,终于在晚年形成宦官政治取代士... 详细信息

刘谦、刘隐出身岭南地方豪强,因为文化弱势而积极与士人合作,坚持士人政治。刘䶮在位期间一直没有解决权力合法性问题,难以改变相对于士人的文化弱势处境,从而对士人不满,质疑士人政治,逐渐以宦官制衡士人,终于在晚年形成宦官政治取代士人政治的趋势。宦官在刘晟摆脱内忧外患的过程中发挥了重要作用,解决了刘晟的权力合法性问题,从而真正崛起,推动南汉正式形成宦官政治,导致士人在南汉权力结构中的边缘化,让士人产生强烈的政治离心倾向,为南汉政权的覆灭埋下伏笔。

关键词：南汉刘䶮士人士人政治宦官宦官政治

Reynolds-Averaged Navier-Stokes Equations Describing Turbulent Flow and Heat Transfer Behavior for Supercritical Fluid

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Journal of Thermal Science 2021年第1期30卷 191-200页

作者： YANG zheng CHENG Xu zheng xinghua CHEN Haisheng Institute of Engineering Thermophysics Chinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China Dalian National Laboratory for Clean Energy Chinese Academy of SciencesDalian 116023China Institute for Applied Thermofluidics Karlsruhe Institute of TechnologyKarlsruhe 76131Germany

Supercritical fluid has been widely applied in many industrial *** traditional Reynolds-averaged Navier-Stokes(RANS)equations are directly applied for turbulent flow and heat transfer of the supercritical fluid,ignoring turbulent effect of the thermal physical properties due to the intense *** paper deduces a set of Reynolds-averaged Navier-Stokes equations for supercritical fluid(SCF-RANS equations)to depict turbulent flow and heat transfer of the supercritical fluid taking all the physical parameters as *** SCF-RANS equations include many new correlation terms due to fluctuation of the thermal physical *** methods for the new correlation term have been discussed for closing the SCF-RANS *** of them have relatively mature models,while others are completely new and need profound physical theoretical analysis for proposing reasonable *** paper provides referable information for these new correlations as far as authors *** SCF-RANS equations not only provide the formulation special for flow and heat transfer of the supercritical fluid,but also represent the most sophisticate form of the RANS equations,for every involved physical property has been considered as variable without any simplification.

关键词： SCF-RANS equations supercritical fluid turbulence Reynolds-averaged Navier-Stokes equations

A 10-yr Rainfall and Cloud-to-Ground Lightning Climatology over Coastal and Inland Regions of Guangdong,China during the Pre-Summer Rainy Season

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Journal of Meteorological Research 2024年第3期38卷 469-488页

作者： Yuqing RUAN Rudi XIA xinghua BAO Dong zheng Yan SHEN Jinfang YIN State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesChina Meteorological AdministrationBeijing100081China Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University of Information Science&TechnologyNanjing210044China National Meteorological Information Centre China Meteorological AdministrationBeijing100081China

A comparative analysis of the spatiotemporal distribution characteristics of rainfall and lightning in coastal and inland areas of Guangdong Province of China during the pre-summer rainy season(PSRS)from 2008 to 2017 reveals distinct *** the inland target region(ITR),rainfall is concentrated in the central and eastern mountainous *** exhibits a bimodal diurnal variation,with peaks in the afternoon and *** afternoon peak becomes more pronounced during the post-monsoon-onset period because of the increased rainfall ***,in the coastal target region(CTR),rainfall concentrates around mountainous ***,CTR’s rainfall is weaker than ITR’s during the pre-monsoon-onset period,primarily associated with the lower-level moisture outflow in CTR,but it strengthens significantly during the post-monsoon-onset period owing to enhanced moisture ***’s diurnal rainfall variation transitions from bimodal to a single broad peak during the post-monsoon-onset period,influenced by changes in both rainfall frequency and *** contrast to rainfall,the spatiotemporal distribution of lightning centers remains relatively stable during the *** strongest center is located over ITR’s plains west of the rainfall center,with a secondary center in the western plains of *** activity significantly increases during the post-monsoon-onset period,particularly in ITR,primarily because of the increased lightning *** diurnal lightning flash density and lightning hours show a single afternoon peak in the two target regions,and the timing of the peak in ITR is approximately two hours later than in *** circulation analysis indicates that during early morning,the lower atmosphere is nearly neutral in *** advected warm,moist,unstable airflow,combined with topography,favors convection *** the afternoon,solar radiation increases thermal instability,further enhancing the convection frequency and in

关键词： rainfall lightning spatiotemporal distribution diurnal variation pre-summer rainy season

Thermally drawn multifunctional fibers: Toward the next generation of information technology

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InfoMat 2022年第7期4卷 98-119页

作者： Yanan Shen Zhe Wang hixun Wang Jiajia Wang Xiao Yang xinghua zheng Haisheng Chen Kaiwei Li Lei Wei Ting Zhang Institute of Engineering Thermophysics Chinese Academy of SciencesBeijingChina Nanjing Institute of Future Energy System NanjingChina University of Chinese Academy of Sciences BeijingChina School of Electrical and Electronic Engineering Nanyang Technological UniversitySingaporeSingapore College of Agricultural Equipment Engineering Henan University of Science and TechnologyLuoyangChina Key Laboratory of Bionic Engineering of Ministry of Education Jilin UniversityChangchunChina Innovation Academy for Light-duty Gas Turbine Chinese Academy of SciencesBeijingChina

As the fundamental building block of optical fiber communication technology,thermally drawn optical fibers have fueled the development and prosperity of modern information ***,the conventional step-index configured silica optical fibers have scarcely altered since their *** recent years,thermally drawn multifunctional fibers have emerged as a new yet promising route to enable unprecedented development in information *** adopting the well-developed preform-to-fiber manufacturing technique,a broad range of functional materials can be seamlessly integrated into a single fiber on a kilometer length scale to deliver sophisticated *** such as photodetection,imaging,acoustoelectric detection,chemical sensing,tactile sensing,biological probing,energy harvesting and storage,data storage,program operation,and information processing on fiber *** addition to the original light-guiding function,these flexible fibers can be woven into fab-rics to achieve large-scale personal health monitoring and interpersonal *** drawn multifunctional fibers have opened up a new stage for the next generation of information *** review article summarizes an overview of the basic concepts,fabrication processes,and developments of multifunctional *** also highlights the significant pro-gress and future development in information applications.

关键词： acoustoelectric fiber biological probe energy fiber integrated circuit fiber multifunctional fiber optoelectronic fiber

Study on the Heat Conduction of Phase-Change Material Microcapsules

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Journal of Thermal Science 2013年第3期22卷 257-260页

作者： Gangtao Zhao Xiaohui Xu Lin Qiu xinghua zheng Dawei Tang Dept. of Pharmacology General Hospital of Beijing Military Command Chinese People's Liberation Army CN 95824 Troop of Chinese People's Liberation Army CN Institute of Engineering Thermophysics Chinese Academy of Sciences

The 3ω approach was used to measure the effective thermal conductivity of phase-change material microcapsules (PCMMs) based on urea formaldehyde and sliced paraffin. The effective thermal conductivities of PCMMs with different densities were measured within the phase-change temperature range. The relationships between effective thermal conductivity, density and temperature were analysed. The effective thermal conductivity reached peak values within the phase-change temperature range and the temperature peak value was consistent with the peak value of the phase-change temperature. The effective thermal conductivity increased with increasing density due to the decreased porosity of samples and their increased solid-phase conduction.

关键词： 3ω-method, Effective thermal conductivity, Phase-change material microcapsules

Piezoelectric Properties of(Na0.5K0.5-xLix)NbO3 Ceramics

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Journal of Materials Science & Technology 2007年第6期23卷 833-836页

作者： Peng QI Jinfeng WANG Baoquan MING Juan DU xinghua LIANG Limei zheng School of Physics Shandong University Jinan 250100 China

Lead-free piezoelectric ceramics （Na0.5K0.5-xLix）NbO3 （x=0.057-0.066） were synthesized by an ordinary sin-tering technique. Substituting Li for K can lead to structural distortion, which improves the Curie temperature （To） greatly. By adding appropriate LiNbO3 content, piezoelectric constant d33 values reach 202-212 pC/N. Electromechanical coefficients of the planar mode reach 44.4%-46.8%. The dielectric loss is below 2.6%, which is much lower than reported （about 50%）. The To of （Na0.5K0.5-xLix）NbO3 （x=0.057-0.066） is in the range of 490-510℃, at least 70℃ higher than that of pure （Na0.5K0.5）NbO3 ceramics. The results show that （Na0.5K0.5-xLix）NbO3 ceramic is a kind of good lead-free high-temperature piezoelectric material.

关键词： Lead-free Piezoelectric Dielectric Morphotropic phase boundary

Enhanced ferro-/piezoelectric properties of tape-casting-derived Er^(3+)-doped Ba_(0.85)Ca_(0.15)Ti_(0.9)Zr_(0.1O3) optoelectronic thick films

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Journal of Advanced Ceramics 2020年第6期9卷 693-702页

作者： Jie XU Qiling LU Jinfeng LIN Cong LIN xinghua zheng Tengfei LIN Xiao WU Key Laboratory of Eco-materials Advanced Technology College of Materials Science and EngineeringFuzhou UniversityFuzhou 350108China

Er^(3+)-doped Ba_(0.85)Ca_(0.15)Ti_(0.9)Zr_(0.1O3)(xEr-BCTZ,x=0,0.005,0.01,0.015)multifunctional thick films were prepared by the tape-casting method,using sol-gel-derived nano-sized powders as the matrix *** surface morphologies,photoluminescence,and electrical properties were *** microstructures with pure perovskite structure were obtained in the thick *** doping an appropriate amount of Er^(3+),the samples exhibit superior up-conversion photoluminescence performance and simultaneously enhanced electrical *** addition,relatively higher texture fractions(with the largest value of 83.5%)were realized through introducing plate-like BaTiO_(3) templates to make the thick film grow by the[001]_(c) *** the ferro-/piezoelectric properties of the thick films were further improved,showing potential in the applications of micro-optoelectronic devices.

关键词： thick films texture ferroelectric piezoelectric photoluminescence

Advances and perspectives in environmental health research in China

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Frontiers of Environmental Science & Engineering 2024年第6期18卷 105-113页

作者： Tong Zhu Yingjun Liu Shunqing Xu Guanghui Dong Cunrui Huang Nan Sang Yunhui Zhang Guanyong Su Jingwen Chen Jicheng Gong Guohua Qin xinghua Qiu Jing Shang Haobo Wang Pengpeng Wang Mei zheng SKL-ESPC&SEPKL-AERM Department of Environmental HealthCollege of Environmental Sciences and EngineeringPeking UniversityBeijing 100871China Center for Environment and Health Peking UniversityBeijing 100871China School of Life and Health Sciences Huainan UniversityHaikou 570228China Joint International Research Laboratory of Environment and Health(Ministry of Education) Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk AssessmentDepartment of Occupational and Environmental HealthSchool of Public HealthSun Yat-sen UniversityGuangzhou 510080China Vanke School of Public Health Tsinghua UniversityBeijing 100084China Research Center of Environment and Health College of Environment and ResourceShanxi UniversityTaiyuan 030006China Department of Environmental Health School of Public HealthFudan UniversityShanghai 200032China School of Environmental and Biological Engineering Nanjing University of Science and TechnologyNanjing 210094China Key Laboratory of Industrial Ecology and Environmental Engineering(Ministry of Education) Dalian Key Laboratory on Chemicals Risk Control and Pollution Prevention TechnologySchool of Environmental Science and TechnologyDalian University of TechnologyDalian 116024China Department of Occupational and Environmental Health College of Public HealthZhengzhou UniversityZhengzhou 450001China

Environmental health research aims to identify environmental conditions suitable for the healthy living and reproduction of human *** the interdisciplinary research bridging environmental sciences and health/medical sciences,the impacts of physical,chemical,and biological environmental factors on human health are *** includes identifying environmental factors detrimental to human health,evaluating human exposure characteristics to environmental factors,clarifying causal relationships between environmental exposure and health effects,analyzing the underlying biochemical mechanisms,linking environmental factors to the onset and progression of diseases,establishing exposure-response relationships,and determining effect ***,the results of environmental health research can serve as a scientific basis for formulating environmental management strategies and guiding prevention and intervention measures at both the public and individual *** paper summarizes the recent advances and future perspectives of environmental health research in China,as reported by a group of Chinese scientists who recently attended a workshop in Hainan,*** it is not intended to provide a comprehensive review of this expansive field,it offers a glimpse into the significant progress made in understanding the health impacts of environmental factors over the past *** ahead,it is imperative not only to sustain efforts in studying the health effects of traditional environmental pollution,but also to prioritize research on the health impacts of emerging pollutants and climate change.

关键词： Environmental pollution Emerging pollutants Climate change Exposure Mechanism