管理者认知与企业绩效关系研究 ——基于双元创新的中介作用

通过对管理者认知、双元创新以及企业绩效等相关理论和文献的回顾和梳理,以"认知→行为→绩效"为研究范式,探讨管理者认知、双元创新与企业绩效三者之间的影响机制并提出相应理论模型.以江浙沪地区企业为研究样本,运用SPSS和AMOS计量分析软件进行实证检验,研究表明:管理者认知对企业绩效存在显著正向影响;管理者认知对探索式创新和利用式创新均存在显著正向影响;探索式创新和利用式创新对企业绩效均存在显著正向影响,并且探索式创新的影响效果要明显大于利用式创新;管理者认知可以通过探索式创新和利用式创新两条路径影响企业绩效;双元创新的平衡效应和互补效应均能显著影响企业绩效且双元创新的平衡效应与企业绩效之间存在一定的倒U型关系.     

农业企业商业模式创新与可持续发展绩效：基于上市公司的验证

作为科技创新主体,农业企业如何利用商业模式创新提升可持续发展绩效成为重要的研究问题。以2015—2021年农业上市企业为样本,采用理论与实证相结合的方法,验证了农业企业效率型和新颖型商业模式创新对经济绩效、环境社会责任绩效的影响作用,以及企业产权性质和细分行业的异质性在其中的影响。研究发现：农业企业效率型商业模式创新对可持续发展绩效的提升作用大于新颖型商业模式创新对可持续发展绩效的提升作用;农业企业实施效率型商业模式创新显著提升经济绩效和环境社会责任绩效,农业企业实施新颖型商业模式创新显著提升经济绩效,但未对环境社会责任绩效产生积极影响;农业企业商业模式创新对可持续发展绩效的提升作用存在显著的产权性质异质性和细分行业异质性。研究结论有助于扩展商业模式创新与企业可持续发展绩效关系研究的视阈,为科技创新驱动农业企业创造可持续性价值提供启示。     

基于心理资本的科技创新人才开发的文化生态机制研究

以高科技创新企业的研发人员为研究对象,通过相关分析和路径研究,发现企业文化不但正向影响员工的心理资本,而且对员工的工作绩效和创新绩效有显著增益作用,且这种影响是通过提升员工心理资本实现的;同时员工的心理资本也正向影响员工的工作绩效和创新绩效。揭示了基于心理资本的科技创新人才开发的文化生态机制,构建了企业文化、心理资本和员工绩效之间的影响路径模型,为科技创新人才的科学开发提供了文化生态路径。     

互动能力对迭代创新绩效的影响研究——知识共创的中介作用

基于迭代创新视角,通过构建互动能力、知识共创与迭代创新绩效的理论模型,对237家企业的样本数据进行实证分析。研究表明:互动能力和知识共创均对迭代创新绩效具有显著的正向影响;知识共创在互动能力和迭代创新绩效之间具有完全的中介作用。进一步完善了迭代创新的相关研究,弥补了互动能力与迭代创新绩效之间关系的研究不足,为企业加强用户合作、提高创新绩效提供了一定的理论依据和实证参考。     

债务结构异质性与双元平衡创新

创新是推动一国经济发展的重要驱动力,而创新融资在企业创新活动中扮演重要角色.然而现有研究对债务融资影响双元创新平衡机制的理解并不够深入.本文以我国2010～2019年3833家上市公司数据为样本,对债务结构异质性影响企业双元平衡创新的机制进行实证研究.结果表明,交易型债务与短期债务分别与企业创新呈倒U型关系,存在最优债务结构;同时,交易型债务与短期债务通过激励企业的利用式创新对企业的创新路径具有显著的修正作用,债权治理保证了公司经理人在进行探索式创新的同时充分进行利用式创新,促进企业处于双元平衡创新路径.论文深化了企业资本结构与创新的关系,对企业通过调整债务结构实现企业双元创新路径的优化,促进企业价值的提升具有重要价值.     

模块化架构与开放式集成创新绩效——以久其软件公司为例

随着市场全球化与专业化分工的不断深入,模块化、集成式逐渐成为软件行业的发展趋势.本文以久其软件为案例研究对象,基于管理软件产品架构和组织架构,探讨以技术价值为驱动的软件企业模块化架构实现方式及其对开放式集成创新绩效的影响机制.研究结论丰富了模块化架构及其实现路径的相关理论体系,对企业创新管理和绩效提升起到一定的借鉴意义.     

众创空间对大学生创客团队创新绩效的影响及机制研究

作为高校开展创新创业活动的重要载体,众创空间对于提升大学生创客团队创新绩效发挥着关键作用。从个体创造力与团队整体特性的理论视角出发,聚焦众创空间如何影响大学生创客团队创新绩效这一核心问题,探究众创空间对大学生创客团队创新绩效的影响效果及作用路径与机制,为科学高效地发挥众创空间的孵化作用提供理论参考和实证依据。以入驻高校众创空间的172个大学生创客团队共1296名大学生创客为研究对象,采用问卷调查法,通过结构方程模型的实证分析,验证了众创空间影响大学生创客团队创新绩效的3条路径及影响机制,即众创空间能够直接显著地影响团队创新绩效,还能通过成员创造力的中介路径和团队创造互动过程与团队凝聚力组成的链式中介路径影响团队创新绩效。基于实证调查数据,得出如下结论:(1)众创空间提供的软、硬件支持不足,且团队特征的异质性能显著影响众创空间平台支持效果;(2)众创空间对大学生创客团队创新绩效的直接效应大于间接效应;(3)团队规模、成员学校及学科来源结构会影响众创空间与大学生创客团队创新绩效之间的中介路径效应。     

环境规制与工业创新绩效 ——基于不同创新模式视角

随着我国工业创新模式更趋多元化,研究环境规制的工业创新效应更具现实意义.理论总结三种主要创新路径下的作用机制,并借助系统GMM、一元并行多重中介模型等方法,从全局和分区视角细化考察我国环境规制对工业创新绩效的综合影响.研究结论:在全国层面,环境规制能通过自主创新与境外技术引进两种渠道对工业创新绩效产生正向影响,但在模仿创新传导路径下,环境规制的效果为负;从分区检验看,东部、中部和西部地区环境规制均可在自主创新路径下对工业创新绩效产生显著正向影响,但中部地区环境规制在境外技术引进路径下的效果消极,西部地区环境规制在模仿创新路径下效果积极.研究结论可为今后区域环境政策构建及企业创新模式选择提供新思路.     

研究生创新绩效的影响因素分析及提升路径研究

从知识共享和知识整合的新视角切入,分析了研究生科研创新绩效的影响因素。基于318份问卷层次回归发现,研究生心理资本、知识共享以及知识整合对创新绩效起到显著的正向作用。研究最后提出了提升研究生创新绩效的路径。     

组织学习对企业人力资本及创新绩效的影响

以组织学习、企业人力资本及创新绩效的关系为出发点,构建了组织学习经由企业人力资本进而影响企业创新绩效的关系模型并提出研究假设,通过构建结构方程模型并以178家企业的调研数据为样本对理论假设进行检验。结果表明,组织学习、人力资本对企业创新绩效具有显著正向影响,且人力资本在组织学习与企业创新绩效间起到中介作用。此外,企业人力资本遵循由通用性向专用性发展的提升机制,通用性人力资本会正向影响专用性人力资本,且相对于通用性人力资本而言,专用性人力资本对企业创新绩效的正向影响更为显著。     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

Perspherical Approaches for Electrons in Atoms and Charged Excitons in Quantum Wells

Instead of following Fock’s expansion,we solve the Schrodinger equation for some quantum mechanical manybody systems such as electrons in atoms and charged excitons in quantum wells in a similar way in hyperspherical coordinates by expanding the wave functions into orthonormal complete basis sets of the hyperspherical hannonics(HHs)of hyperangles and generalized Laguerre polynomials(GLPs)of the hyperradius.This leads the equation to     

Advances in broadband wireless communications under high-mobility scenarios

Future mobile communication systems aim at providing very high data transmission rates, even in high-mobility scenarios such as high-speed wheel-track trains, maglev trains, highway vehicles, airplanes, guided missiles or spacecraft. A particularly important commercial application is the strong and increasing worldwide demand for high- speed broadband wireless communications （up to 574.8 km/ h test speeds or 380 km/h commercial speeds） in railways, providing data, voice and video services for applications such as onboard entertainment services to passengers, train control, train dispatch, train sensor status handling and sur- veillance. In such high-mobility scenarios, there are a number of communication challenges, including fast hand- over, location updating, high-speed channel modeling, estimation and equalization, anti-Doppler spreading tech- niques, fast power control, and dedicated network architec- ture. Because signal transmission in very high-speed scenarios will inevitably experience serious deterioration, it is imperative to develop key broadband mobile communi- cation techniques for such high-speed vehicles.     

Wuhan University Journal of Natural Sciences TOTAL CONTENTS

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海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

Scale-based spatial data model for GIS

Being the primary media of geographical information and the elementary objects manipulated, almost all of maps adopt the layer-based model to represent geographic information in the existent GIS. However, it is difficult to extend the map represented in layer-based model. Furthermore, in Web-Based GIS, It is slow to transmit the spatial data for map viewing. In this paper, for solving the questions above, we have proposed a new method for representing the spatial data. That is scale-based model. In this model we represent maps in three levels: scale-view, block, and spatial object, and organize the maps in a set of map layers, named Scale-View, which associates some given scales.Lastly, a prototype Web-Based GIS using the proposed spatial data representation is described briefly.     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with     

Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to