Genetic distance,international experience and the performance of cross-border R&D for EMNEs

Cross-border R&D can contribute to the enhancement of independent innovation capabilities of emerging markets multinational enterprises (EMNEs) by benefiting from knowledge management. However, scant research exists examining the location impact of cross-border R&D for EMNEs on performance implications. This paper fills this important theoretical gap by building upon the literature of genetic distance in connection with knowledge management. We use a panel data of Chinese high-tech listed companies to empirically examine the impact of genetic distance on the performance of cross-border R&D and the role played by international experience. Our results reveal a positive relationship between genetic distance and the performance of cross-border R&D. Importantly, we highlight the motivation for cross-border R&D of EMNEs to acquire technical knowledge magnifies the positive effects of genetic distance and performance. Furthermore, our analysis indicates that international experience significantly enhanced the positive effect of genetic distance on cross-border R&D performance. We conclude this paper by discussing theoretical contributions to genetic distance, international management and knowledge management, as well as practical implications for cross-border R&D of EMNEs.     

Online MapReduce processing on two identical parallel machines

In this work we investigate the online over-list MapReduce processing problem on two identical parallel machines, aiming at minimizing the makespan. Jobs are revealed one by one, and each job consists of one map task and one reduce task. The map task can be arbitrarily split and processed on both machines simultaneously, while the reduce task has to be processed on a single machine and it cannot be started unless the map task has been completed. We first show that the general case of the problem reduces to the classical two machine online scheduling model with an optimal competitive ratio of 3/2. For a special case where the map task is at least as long as the reduce task, we prove that no online algorithm can be less than 4/3-competitive. An optimal Greedy algorithm with a matching competitive ratio is proposed as well.     

考虑实时预倒箱的出口箱堆场多场桥调度优化

在出口集装箱堆场的实际作业过程中,倒箱是制约场桥作业效率的瓶颈之一。为提高出口箱堆场的作业效能,减少船舶装船作业时间,采用实时预倒来降低倒箱的影响,研究出口箱堆场多场桥调度优化问题。考虑待提箱作业次序固定、场桥间保持安全距离及不可跨越的现实约束,兼顾内集卡的等待上限,侧重场桥作业过程中的实时预倒箱,构建了以带惩罚因子的内集卡总等待时间最少为目标的混合整数线性规划模型。基于问题自身的特点设计了混合和声模拟退火算法,得出了各场桥的行走路径与实时预倒箱方案。在算例实验中,通过与不考虑实时预倒箱的方案、FCFS方案以及下界进行对比,验证了考虑实时预倒箱的场桥调度模型及算法的有效性,为集装箱码头出口箱堆场的场桥调度提供参考。     

Fibonacci helps to evacuate from a convex region in a grid network

This study considers an evacuation problem where the evacuees try to escape to the boundary of an affected area, which is convex, and a grid network is embedded in the area. The boundary is unknown to the evacuees and we propose an online evacuation strategy based on the Fibonacci sequence. This strategy is proved to have a competitive ratio of 19.5, which is better than the best previously reported result of 21.     

论迁移规律及其在物理教学中的重要作用

迁移规律是教育学研究的重要内容之一,本文认为,其核心在于认识和把握不同事物或现象之间的相似性,并给出了案例分析和哲学论证。     

通信原理中调制技术的四维思维空间

本文首先分析了通信原理课程中调制技术的特点,然后讨论了如何在教学实践中运用四维思维空间法。     

劳动合约原论——分工对合约的关系及其理论应用

演绎分工和合约的逻辑关系,本文引出了“企业本质是劳动合约”的理论命题。即从唯物史观与劳动价值论(劳动过程)具有相互内涵的观点看,企业是对劳动合约的特别运用,应当把企业组织的性质本质规定为劳动合约,而把劳动合约本质规定为企业组织性质的动态的历史演化过程,从而实现企业的静态本质与动态本质的统一。进一步,也就可以凭借其打通尚存于两大企业理论体系之间的“理论瓶颈”,拓宽两大企业理论沿“异同性质”层面进行互补生长和发展的理论空间。这一命题的论断以及推导完全符合马克思经济学的基本纲领和研究框架性质。     

互联网平台企业主导的创新生态系统演化风险识别及规避

依托产业数字化和产业组织理论,挖掘产业基础的协同关系与协同机理,为我国深入推进产业基础再造提供理论启示。

采用定性分析法,在对产业基础和产业基础再造进行探讨的基础上,梳理产业基础再造的协同关系,阐释产业基础再造的协同机理。

产业基础是由相互关联、相互制约的各类主体形成的一个复杂系统。对产业基础实施再造,意味着要站在顶层设计的高度,重新梳理企业之间的关系,夯实产业底层结构。数字经济背景下,产业基础再造的协同关系表现为复杂系统化和组织协同化,产业基础再造的协同机理表现为五个方面,分别是以产业链为纽带、以企业为主体、以融合创新为动力、以产业集群为抓手、以质量提升为保障。

     

论俄罗斯的实用主义外交

俄罗斯虽然仍是一个不可低估的大国,但是由于其所面临的内部问题和国际局势的变化,使得俄罗斯在外交领域可回旋的空间有限。为了给国内发展创造一个良好的国际环境,普京政府以一种实用主义风格的对外政策周旋于国际社会之中,力图争取到一个较长时间的发展阶段,为俄罗斯的复兴创造机会。但这种实用主义外交最终可能导致的结果是国家信用的逐渐流失而无法深化与他国的关系。     

吴晓东神话学研究评述

吴晓东从事神话学研究二十多年,纵观其整个研究历程,其研究对象不断扩展,对蚩尤神话的研究层层深入,对盘瓠神话研究革故鼎新,同时以考据为主的研究特点贯穿始终。他坚持用语言学的理论方法进行研究,同时不排斥用其他方法进行补充研究。其不拘定论、大胆质疑、推陈出新、多有创获,一直在学术研究中苦心孤诣,其研究成果引起学界关注。