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通威股份数字化转型路径与绩效

财务管理研究 2025年第1期 75-80页

作者：吴树畅王以凡孙妍山东工商学院烟台264005 烟台市芝罘区政府审计局烟台264008

数字化赋能业务与财务是企业转型升级的重要渠道。以通威股份为例,从内部和外部两个方面分析其数字化转型的动因,从建设智慧工厂、构建数智财务系统、打造混合云平台和搭建能碳管理平台4个方面分析其数字化转型的路径,从投入产出、资本... 详细信息

数字化赋能业务与财务是企业转型升级的重要渠道。以通威股份为例,从内部和外部两个方面分析其数字化转型的动因,从建设智慧工厂、构建数智财务系统、打造混合云平台和搭建能碳管理平台4个方面分析其数字化转型的路径,从投入产出、资本增值及持续发展3个维度分析其数字化转型的财务绩效,从创新和环境绩效两个方面分析其数字化转型的非财务绩效,最后评价其数字化转型的经验,即根据自身发展中存在的问题进行数字化转型,并提出具体建议,希望为其他企业的数字化转型提供思路。

关键词：数字化转型智慧工厂数智财务混合云平台能碳管理平台

生命早期暴露全氟丁烷磺酸对SD大鼠的神经发育毒性及其机制

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癌变.畸变.突变 2025年第1期37卷 21-26页

作者：谭启涛朱航宇孙艳桂林医学院公共卫生学院广西桂林541199

目的:研究生命早期暴露全氟丁烷磺酸(PFBS)对SD大鼠子代神经发育的影响,并探讨其机制。方法:将受孕SD母鼠随机分为4组,每组5只,分别为对照组(0 mg/kg,生理盐水)和PFBS低(5 mg/kg)、中(50 mg/kg)、高剂量组(500 mg/kg)。在母鼠受孕第2天... 详细信息

目的:研究生命早期暴露全氟丁烷磺酸(PFBS)对SD大鼠子代神经发育的影响,并探讨其机制。方法:将受孕SD母鼠随机分为4组,每组5只,分别为对照组(0 mg/kg,生理盐水)和PFBS低(5 mg/kg)、中(50 mg/kg)、高剂量组(500 mg/kg)。在母鼠受孕第2天开始经口灌胃染毒至仔鼠断乳。仔鼠日龄90 d后,每个剂量组随机挑选10只仔鼠处死并取材。光镜下观察仔鼠海马体组织病理学变化;Western blot法检测仔鼠海马体中BDNF、TRKB、PI3K、AKT及P-AKT的蛋白表达水平;逆转录荧光定量PCR(RT-qPCR)法检测Syn1和Syp mRNA的相对表达水平。结果:病理学检测结果显示各个PFBS暴露组仔鼠的海马体均受到损伤,其中高剂量组仔鼠的海马体损伤最严重。Western blot检测结果显示,与对照组相比,各个PFBS暴露组仔鼠的BDNF、TRKB、PI3K、P-AKT蛋白表达水平下调(P<0.01),P-AKT/AKT蛋白表达水平的比值降低(P<0.05)。RT-qPCR检测结果显示,与对照组相比,中剂量组和高剂量组的CREB下游基因Syn1与Syp的mRNA表达水平下调(P<0.05或P<0.01)。结论:生命早期PFBS暴露对大鼠的海马体造成损伤;PFBS损伤海马体BDNF/TRKB/CREB及PI3K/AKT信号通路可能是PFBS的神经发育毒性机制。

关键词：全氟和多氟烷基类化合物全氟丁烷磺酸生命早期神经发育毒性 BDNF/CREB通路

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中西语境下的“艺术终结”

思想战线 2009年第4期35卷 106-109页

作者：孙艳秋中国社会科学院文学研究所

"艺术终结"是黑格尔从其思想体系中演绎的重要结论,丹托立足于当代艺术迥异于传统的现状,对其进行重要的发挥,在中国学界的相关领域产生了重大而深远的影响。然而,在中国学者对这一理论的热烈讨论中透露出对之理解、阐发以及评价的多重... 详细信息

"艺术终结"是黑格尔从其思想体系中演绎的重要结论,丹托立足于当代艺术迥异于传统的现状,对其进行重要的发挥,在中国学界的相关领域产生了重大而深远的影响。然而,在中国学者对这一理论的热烈讨论中透露出对之理解、阐发以及评价的多重偏差和错位,这种尴尬很大程度上源于我们同西方异质的历史时间观,表现了中国传统循环观基础上的"艺术不死"与西方进化论前提下的"艺术终结"之间的对抗。

关键词：艺术终结黑格尔丹托当代艺术

Chemometric methods for extracting information from temperature-dependent near-infrared spectra

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Science China Chemistry 2019年第5期62卷 583-591页

作者： Xiaoyu Cui yan sun Wensheng Cai Xueguang Shao Research Center for Analytical Sciences College of ChemistryNankai University Tianjin Key Laboratory of Biosensing and Molecular Recognition State Key Laboratory of Medicinal Chemical Biology Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Xinjiang Laboratory of Native Medicinal and Edible Plant Resources Chemistry College of Chemistry and Environmental ScienceKashgar University

Temperature-dependent near-infrared(NIR) spectroscopy is a new technique for measuring the NIR spectra of a sample at different temperatures. Taking the advantage of the temperature effect, the technique has shown its potential in both quantitative and qualitative analysis. The technique has been proved to be powerful in determination of the analytes in complex samples,particularly in studying the functions of water in aqueous systems due to the significant effect of temperature on the NIR spectra of water. Because of the complicated interactions in the samples and the overlapping of the broad peaks in NIR spectra, it is difficult to extract the temperature-dependent information from the spectra. Chemometric methods, therefore, have been developed for improving the spectral resolution and extracting the temperature-induced spectral information. In this review, recent advances in the studies of chemometric methods and the applications in resolution, quantitative and structural analysis of temperature-dependent NIR spectra were summarized.

关键词： near-infrared spectroscopy temperature effect chemometrics water aquaphotomics

Solution-based Chemical Strategies to Purposely Control the Microstructure of Functional Materials

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Journal of Materials Science & Technology 2008年第4期24卷 641-648页

作者： Fei LIU Congting sun Chenglin yan Dongfeng XUE State Key Laboratory of Fine Chemicals Department of Materials Science and Chemical Engineering School of Chemical Engineering Dalian University of Technology Dalian 116012 China

Micro/nanostructured crystals with controlled architectures are desirable for many applications in optics, electronics, biology, medicine, and energy conversions. Low-temperature, aqueous chemical routes have been widely investigated for the synthesis of particles, and arrays of oriented nanorods and nanotubes. In this paper, based on the ideal crystal shapes predicted by the chemical bonding theory, we have developed some potential chemical strategies to tune the microstructure of functional materials, ZnS and Nb205 nanotube arrays, MgO wiskers and nestlike spheres, and cubic phase Cu2O microcrystals were synthesized here to elucidate these strategies. We describe their controlled crystallization processes and illustrate the detailed key factors controlling their growth by examining various reaction parameters. Current results demonstrate that our designed chemical strategies for tuning microstructure of functional materials are applicable to several technologically important materials, and therefore may be used as a versatile and effective route to the controllable synthesis of other inorganic functional materials.

关键词： Functional materials Chemical strategy Chemical bonding theory Microstructure

The formation of liquid bridge in different operating modes of AFM

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Science China(Physics,Mechanics & Astronomy) 2016年第9期59卷 77-85页

作者： Zheng Wei yan sun WenXuan Ding ZaiRan Wang College of Mechanical and Electrical Engineering Beijing University of Chemical Technology

The liquid bridge is one of the principal factors that cause artifacts in ambient-pressure atomic force microscope(AFM) ***, it is the main component of the adhesion force in ambient conditions. To understand the AFM imaging mechanism and the sample characteristics, it is essential to study the liquid bridge. This study interprets the physical mechanism involved in liquid bridge formation, which is composed of three different physical processes: the squeezing process, capillary condensation,and liquid film flow. We discuss the contributions of these three mechanisms to the volume and the capillary force of the liquid bridge in different AFM operation modes.

关键词： liquid bridge atomic force microscope formation mechanism

Effects of the continuous cooling process conditions on the crystallization and liberation characteristics of anosovite in Ti-bearing titanomagnetite smelting slag

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International Journal of Minerals,Metallurgy and Materials 2019年第9期26卷 1120-1128页

作者： Zhen Wang Hao-yan sun Qing-shan Zhu State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China

This study involved the investigation of the effects of the continuous cooling process conditions on the crystallization and liberation characteristics of anosovite in Ti-bearing titanomagnetite smelting slag. The samples were heated until melting and then the temperature was held at 1650℃ for nearly 0.5 h;subsequently, the samples were cooled at different cooling rates to different temperatures and water-quenched after being held for different times at these temperatures. Last, the obtained crystallized samples were used to analyze the crystallization and liberation characteristics. It was found that, during the continuous cooling process, anosovite particles were found to initially precipitate in the slag at a relatively high crystallization temperature, showing the characteristics of euhedral crystal. The precipitation and growth of anosovite grain is strong and the morphology of anosovite was basically not affected by the continuous cooling conditions. From the morphology perspective, the formed anosovite is an excellent Ti-rich phase to be selective separated. The formation of spinel and diopside is negative for the liberation and selective separation of the anosovite phase. The crystallization diagrams of TiO2-MgO-CaO-SiO2-Al2O3-FeO slag undergoing different continuous cooling processes were constructed to help to determine the optimal continuous cooling–quenching condition for selective separation of anosovite. Moreover, the addition of B2O3 can enlarge the range of the optimal continuous cooling–quenching conditions for selective separation of anosovite.

关键词： titanium-bearing slag crystallization anosovite liberation titanomagnetite

Synthesis and characterization of magnetic polymer microspheres with a core-shell structure

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China Particuology 2007年第1期5卷 180-185页

作者： Ming Lu Shu Bai Kun yang yan sun Department of Biochemical Engineering School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China

Non-porous magnetic polymer microspheres with a core-shell structure were prepared by a novel micro-suspension polymerization technique. A stable iron oxide ferrofluid was used to supply the magnetic core, and the polymeric shell was made of glycidyl methacrylate （GMA monomer） and ethylene dimethacrylate （cross-linker）. In the preparation, polyvinyl alcohol was used as the stabilizer, and a lauryl alcohol mixture as the dispersant. The influence of various conditions such as aqueous phase volume, GMA and initiator amounts, reaction time and stirring speed on the character of the microspheres was investigated. The magnetic microspheres were then characterized briefly. The results indicate that the microspheres with active epoxy groups had a narrow size distribution range from 1 to 10 μm with a volume-weighted mean diameter of 4.5 μm. The saturation magnetization reached 19.9 emu/g with little coercivity and remanence.

关键词： Ferrofluid Micro-suspension polymerization Magnetic microspheres Particle size Magnetization

Dissipativity Analysis of Neural Networks with Time-varying Delays

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International Journal of Automation and computing 2008年第3期5卷 290-295页

作者： yan sun Bao-Tong Cui School of Communication and Control Engineering 3iangnan University Wuxi 3iangsu 214122 PI~C

A new definition of dissipativity for neural networks is presented in this paper. By constructing proper Lyapunov functionals and using some analytic techniques, sufficient conditions are given to ensure the dissipativity of neural networks with or without time-varying parametric uncertainties and the integro-differential neural networks in terms of linear matrix inequalities. Numerical examples are given to illustrate the effectiveness of the obtained results.

关键词： Neural network dissipativity Lyapunov functional