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数智赋能企业新质生产力的价值创造与溢出效应研究——基于中国制造业上市企业的实证检验

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山西师大学报（社会科学版） 2025年第1期52卷 20-33页

作者：惠宁史明聪西北大学经济管理学院西安710127

在新一轮科技革命和产业变革背景下,数智化将带来技术革命性突破,成为赋能新质生产力的重要引擎。文章以A股制造业上市企业为研究样本,与供应链网络数据进行匹配,考察数智赋能企业新质生产力的价值创造和价值溢出。结果表明:数智化能够... 详细信息

在新一轮科技革命和产业变革背景下,数智化将带来技术革命性突破,成为赋能新质生产力的重要引擎。文章以A股制造业上市企业为研究样本,与供应链网络数据进行匹配,考察数智赋能企业新质生产力的价值创造和价值溢出。结果表明:数智化能够赋能制造业企业新质生产力,且对上下游企业存在价值溢出,在经过内生性与稳健性检验后依然成立。机制分析表明,数智化通过协同转型机制、资源配置机制和知识溢出机制赋能企业新质生产力的价值溢出。异质性分析表明,当目标企业为国有企业、上下游企业为非高科技企业和小规模企业、企业间地理距离较近时,数智赋能制造业企业新质生产力的价值溢出效应更强。因此,要加大数智资源投入,激发企业创新活力,推动制造业数智化转型;强化协同转型机制、资源配置机制和知识溢出机制,发挥数智化赋能效应;依据企业特征分类施策,有序推动制造业企业数智化转型。

关键词：数智赋能新质生产力价值创造价值溢出

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An adaptive fast search algorithm for block motion estimation in H.264

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Journal of Zhejiang University-Science C(Computers and Electronics) 2010年第8期11卷 637-644页

作者： cong-dao HAN Institute of Information and Communication Engineering Zhejiang University Hangzhou 310027 China Zhejiang Provincial Key Laboratory of Information Network Technology Hangzhou 310027 China

Motion estimation is an important issue in H.264 video coding systems because it occupies a large amount of encoding *** this paper,a novel search algorithm which utilizes an adaptive hexagon and small diamond search (AHSDS) is proposed to enhance search *** search pattern is chosen according to the motion strength of the current *** the block is in active motion,the hexagon search provides an efficient search means;when the block is inactive,the small diamond search is *** results showed that our approach can speed up the search process with little effect on distortion performance compared with other adaptive approaches.

关键词： Adaptive hexagon and small diamond search (AHSDS) Search pattern Mean absolute difference (MAD) Optimal point

China’s intercropping leads to higher grain yield gains

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Science China(Life Sciences) 2020年第10期63卷 1612-1614页

作者： Wen-Feng cong College of Resources and Environmental Sciences National Academy of Agriculture Green DevelopmentKey Laboratory of Plant-Soil InteractionsMinistry of EducationChina Agricultural UniversityBeijing 100193China

Food security is one of the top priorities of sustainable development. Conventional intensive agriculture provides high crop yields of important food staples such as wheat and rice, but comes with severe environmental impacts. Intercropping, the mixed cultivation of crop species on the same land, is traditionally and widely practiced by small-holder farmers world-wide in various ways, using a diversity of crop combinations, temporal and spatial arrangements, and at different levels of fertilizer input. There is considerable evidence that intercropping can increase efficient use of land, light, water and nutrient use, suppress weed growth, reduce pest and disease, enhance soil carbon sequestration and soil fertility, and enhance yield stability and farmers’ profitability (Stomph et al., 2020).

关键词： soil intercropping fertility

Relay Beamforming Design for Physical Layer Secure Communication via Line Search Algorithm

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China Communications 2021年第12期18卷 270-284页

作者： Siqi Chen cong Sun School of Scince Beijing University of Posts and TelecommunicationsBeijing 100876China

This paper considers a physical layer se-curity model in wireless *** legit-imate users communicate through several relays with the presence of an *** jointly design the relay beamforming weights and minimize the to-tal relay transmit power,while ensuring users’Qual-ity of Services and preventing the information being eavesdropped at the same *** problem is a robust optimization problem,because of the imper-fect channel state information from users and relays to the *** the original problem is sim-plified,where the high order robust terms are *** we design an iterative algorithm based on line search,by solving two Quadratically Con-strained Quadratic Programming subproblems and a one-dimensional *** results indi-cate that the proposed algorithm outperforms the state of the arts.

关键词： wireless communication physical layer security line search robust optimization

Large deflection of circular membrane under concentrated force

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Applied Mathematics and Mechanics(English Edition) 2008年第7期29卷 889-896页

作者： JIN cong-rui Department of Mechanical Engineering University of Alberta AB T6G 2G8 Canada

The analytical solution to a Foppl-Hencky membrane with a rigidly clamped boundary condition under concentrated force is provided. Stability of a nonlinear circular membrane is investigated.

关键词： circular membrane concentrated force large deformation exact solution

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磁场诱导梯度水凝胶的制备及其致动性能研究

现代化工 2025年第1期45卷 170-177页

作者：张伟腾郑奥从怀萍合肥工业大学化学与化工学院安徽合肥230009

采用酸刻蚀和高温热分解法合成了2D超顺磁性Fe_(3)O_(4)-MXene纳米片,以Fe_(3)O_(4)-MXene纳米片和聚N-异丙基丙烯酰胺(PNIPAM)为原料开发了一种各向异性梯度水凝胶致动器。结果表明,Fe_(3)O_(4)-MXene纳米片在水凝胶前溶液中垂直向下移... 详细信息

采用酸刻蚀和高温热分解法合成了2D超顺磁性Fe_(3)O_(4)-MXene纳米片,以Fe_(3)O_(4)-MXene纳米片和聚N-异丙基丙烯酰胺(PNIPAM)为原料开发了一种各向异性梯度水凝胶致动器。结果表明,Fe_(3)O_(4)-MXene纳米片在水凝胶前溶液中垂直向下移动,产生增量含量梯度,交联固定后得到各向异性梯度的网络结构。水凝胶在厚度上形成不同尺寸的孔径,在远离磁体的一侧孔具有相对较大的尺寸,约有50μm,在靠近磁体附近尺寸逐渐减小到约5μm。Fe_(3)O_(4)-MXene纳米片赋予水凝胶优异光热效应,在近红外光的照射下能够实现多种可逆的形状变化和仿生软机器人的功能。

关键词： Fe_(3)O_(4)-MXene磁性纳米片 N-异丙基丙烯酰胺光聚合梯度水凝胶软机器人

Hydrodynamics and heat transfer of gas-solid two-phase mixtures flowing through packed beds——a review

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Progress in Natural Science:Materials International 2008年第10期18卷 1185-1196页

作者： Ngoc Thang cong Institute of Particle Science & Engineering University of LeedsClarendon RoadLeeds LS2 9JTUK

Flow of a gas-solid two-phase mixture through a packed bed is relevant to a number of industrial processes such as heat recovery and filtration of dusty flue gases,iron making in shaft reactors,gas purification,and sorption enhanced reaction *** spite of the industrial relevance,little work has been reported in the *** limited amount of research work has mainly addressed the mac- roscopic hydrodynamics in terms of pressure drop and solids hold-ups at the ambient *** little is done,until fairly recent, on solids motion at the single particle level,hydrodynamics at elevated temperatures and heat *** paper reviews the recent development in the field including both the hydrodynamics and heat transfer of gas-solid two-phase mixtures flowing through packed beds,which is believed to represent the state-of-the-art in the *** review is not aimed to be exhaustive but rather focused on our own work carried out over the past few years in the Institute of Particle Science & Engineering at the University of *** some of our results are compared with that of other groups.

关键词： Gas-solid two-phase flow Hydrodynamics Heat transfer PEPT Euler-Euler multi-fluid model

A Simple Empirical Formula for Predicting the Ultimate Strength of Ship Plates with Elastically Restrained Edges in Axial Compression

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China Ocean Engineering 2020年第4期34卷 571-580页

作者： LIU cong ZHANG Shi-lian State Key Laboratory of Ocean Engineering Shanghai Jiao Tong UniversityShanghai 200240China Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration Shanghai 200240China

An investigation is conducted on the static ultimate limit state assessment of ship hull plates with elastically restrained edges subjected to axial *** material and geometric non-linearities were considered in finite element(FE)*** initial geometric imperfection of the plate was considered,while the residual stress introduced by welding was not *** ultimate strength of simply supported ship hull plates compared well with the existing empirical formula to validate the correctness of the applied boundary conditions,initial imperfection and mesh *** extensive FE calculations on the ultimate strength of ship hull plates with elastically restrained edges are *** a new simple empirical formula for plate ultimate strength is developed,which includes the effect of the rotational restraint stiffness,rotational restraint stiffness,and aspect *** applying the new formula and FE method to ship hull plates in real ships,a good coincidence of the results between these two methods is obtained,which indicates that the new formula can accurately predict the ultimate strength of ship hull plates with elastically restrained edges.

关键词： ship hull plate ultimate strength axial compression elastically restrained edges empirical formula

Tropical cyclone genesis over the western North Pacific simulated by Coupled Model Intercomparison Project Phase 6 models

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Acta Oceanologica Sinica 2022年第5期41卷 64-77页

作者： cong Gao Lei Zhou School of Oceanography Shanghai Jiao Tong UniversityShanghai200030China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai519082China

Threatening millions of people and causing billions of dollars in losses,tropical cyclones(TCs)are among the most severe natural hazards in the world,especially over the western North ***,the response of TCs to a warming or changing climate has been the subject of considerable research,often with conflicting *** this study,the abilities of Coupled Model Intercomparison Project(CMIP)Phase 6(CMIP6)models to simulate TC genesis are assessed through historical *** results indicate that a systematic humidity bias persists in most CMIP6 models from corresponding CMIP Phase 5 models,which leads to an overestimation of climatological TC ***,the annual cycle of TC genesis is well captured by CMIP6 *** abilities of 25 models to simulate the geographical patterns of TC genesis vary *** addition,seven models are identified as well simulated models,but seven models are identified as poorly simulated ones.A comparison of the environmental variables for TC genesis in the well-simulated group and the poorly simulated group identifies moisture in the mid-troposphere as a key factor in the realistic simulation of El Niño-Southern Oscillation(ENSO)impacts on TC *** contrast with the observations,the poorly simulated group does not reproduce the suppressing effect of negative moisture anomalies on TC genesis in the northwestern region(20°–30°N,120°–145°E)during El Niño *** the interaction between TC and ENSO,these results provide a guidance for future TC projections under climate change by CMIP6 models.

关键词： CMIP6 tropical cyclone genesis potential index relative humidity