黑龙江省城镇化建设与生态环境协调发展研究

黑龙江省城镇化进程中的生态环境问题主要表现为环境污染和土地滥用,产生这些问题的原因是城镇人口的快速增长、发展模式转换滞后、对资源稀缺性认识不够及环保法律法规制度的不健全。为促进黑龙江省城镇化与生态环境协调发展,应合理调整产业结构和用地布局,强化生态文明意识,完善城镇体系,加强政府对环境的管理。     

Longevity challenges and leadership interventions: Strategy journeys of two Indian banks

This article studies the strategic journeys of two Indian banks in evolving socio-political and economic environments, spread across eight decades. It provides a holistic view of longevity challenges by exploring interdependencies between a firm’s internal dynamics, external environment, and its leaders. This article covers the growth of Canara Bank and Syndicate Bank in distinct phases of unrestricted, regulated, and centrally planned economic environment, and in changing socio-political scenarios. It uses within-case and across-case analysis, contextualised in these conditions, to provide rich insights about measures adopted by firms for their long-term survival and sustenance.     

How to move away from the silos of business management education?

Business management education is criticized for being too theoretical and fractional. Despite the numerous efforts to build integrated and experiential business curricula, learning is still organized in disciplinary silos. The curriculum integration efforts are carried out in separate sections of the curriculum rather than the core. There are theoretical, holistic models, but a lack of concrete examples of holistic business curriculum implementations. The authors bring the separate sections together by developing a holistic core curriculum model with three perspectives: a structure to bring intellectual coherence, people organized in learning communities, and an enterprise resource planning–supported learning environment to bring the practical training ground. The authors present a concrete implementation in a case study with first-year undergraduate business students and present their lessons learned.     

众创空间集聚的连续距离测度及影响因素分析

基于253家浙江省众创空间的微观数据，文章在运用连续距离的测度方法测算众创空间集聚水平的基础上，采用零膨胀负二项回归等方法实证分析众创空间集聚的影响机制。研究发现，众创空间的地理分布存在显著的区域差异，主要分布在杭州和宁波市辖区，选址具有明显的集聚特征。回归结果显示，区域创新能力和生态环境均对众创空间的地理集聚具有促进作用，但两者之间存在明显的替代效应；尽管不能直接促进众创空间的集聚，政策引导与创新能力之间具有较显著的互补效应。据此，文章从培育创新能力和优化创新激励等方面提出了政策建议。     

健全我国企业环保信用评价法律制度的正当性面向

《环境保护法》等环境法律体系日渐趋同的多元共治理念,渗透并引发环境法律制度体系的结构性转型;国内环境信息公开制度保障公众环境知情权的核心功能不能容纳企业环保信用评价制度的制度功能;信用制度与信息制度错序产生的国内外法治及社会环境迥异等,决定了我国企业环保信用评价制度健全的正当性面向。     

实际控制人控股多家上市公司与超额在职消费

文章基于委托代理理论,从实际控制人监督职能角度,研究实际控制人同时控股多家上市公司,对管理者超额在职消费的影响。研究发现,当上市公司所属实际控制人同时控股多家上市公司时,其超额在职消费水平显著高于其它上市公司。进一步研究表明,产权性质和外部治理环境能够对二者关系产生显著影响：民营企业和分析师关注度较高企业,控股多家上市公司对其超额在职消费不存在显著影响;媒体监督较高企业和十八大之后,控股多家上市公司对其超额在职消费的促进作用受到显著抑制。文章研究不仅丰富了实际控制人监督和超额在职消费领域的相关文献,同时对实际控制人如何有效治理公司具有重要的实践意义。     

Voluntary pricing mechanisms for green product purchase: altruistic versus self-enhancing consideration

Voluntary pricing mechanisms, such as Pay-What-You-Want (PWYW), could be a better pricing strategy to substitute for cash discount promotions. They can effectively promote the sales of conventional goods and services, while being influenced by socio-psychological variables. However, there is no clarity on the relative assessment of the impact of pricing frames, such as PWYW and Mark-Off-Your-Own-Price (MOYOP), on the consumers’ purchase of green products, where the purchase consideration might vary as the environment protection (altruistic) consideration versus the self-interest (self-enhancing) consideration. Further, there remains ambiguity on when and why such pricing mechanisms will work. This study, through an experiment, examines the buyers’ varied responses for the PWYW price frame versus the MOYOP price frame versus the fixed price frame under the environment protection (altruistic) consideration versus the self-interest (self-enhancing) consideration. It shows that although buyers do not show any difference in the mean voluntary payment between PWYW versus MOYOP frames as such; they prefer PWYW price frame under the environment protection (altruistic) consideration and MOYOP price frame under the self-interest (self-enhancing) consideration. The results show that the perception of price fairness mediates the relationship between pricing mechanism and willingness to buy (WTB). Furthermore, this study finds that price consciousness impacts the indirect effect of pricing mechanisms on WTB via perceived price fairness. The present study is the first to examine and analyze different considerations when the buyers’ preference varied for the PWYW versus MOYOP pricing frames. This study has suggested the underlying role of the perception of price fairness and price consciousness in the participative pricing mechanism on purchase.     

民航地空通信自适应抗干扰系统设计与性能分析

在复杂电磁环境下,由于民航地空通信大频偏的要求,滤波器无法滤除波道内的干扰。针对此问题,提出了一种自适应抗干扰系统设计方法。对于落在波道内且与地空通信信号有效频带不重叠的干扰,首先对通信信号进行载波频率估计,然后使用自适应滤波方法进行干扰抑制;对于落在波道内且与地空通信信号有效频带重叠的恒包络干扰,首先重构载波信号,消除对恒包络信号估计的影响,然后根据恒包络信号的特性重构干扰信号并进行干扰分离。实验结果表明,该系统设计方法在不改变民航地空通信架构的前提下,抗有效频带外干扰的能力最大可以提升23.8 dB,抗恒包络干扰的能力最大可以提升39.4 dB,从而可以大幅提高航空飞行安全水平。     

战术面向服务架构概念及相关技术

战术面向服务架构（TSOA）是实现战术云平台服务基础设施的重要支撑概念。由于战术环境的复杂性,目前对TSOA实施过程中面临问题和相关实现技术的总结还较少。为此,开展了针对TSOA的概念以及相关技术的研究。首先,从战术环境下的TSOA架构需求背景出发,介绍了TSOA架构的组成以及适应性特征;然后,通过分析战术环境下设备和网络等多方面存在的限制性因素,明确实施TSOA架构所面临的挑战以及需要解决的关键问题,并对实现过程中涉及的服务发现、消息传输机制、网络状态自适应等相关技术进行归纳;最后,对国内外的相关研究工作进行总结,期望对推动TSOA架构的具体实施提供一定参考。     

战场环境中的电波传播模型优化选择方法

针对战场级的复杂电磁环境仿真过程中涉及到全频段覆盖、环境影响、仿真速度要求高等问题,提出了一种综合考虑用频装备、环境信息和模型自身特点的电波传播模型选择方法。该方法首先通过频段对用频装备及电波传播模型进行划分,再结合环境信息中降雨量、海拔、植被覆盖率、气候类型、导电特性等参数进行综合分析,最终得到传播模型的优化选择方案。在典型作战场景仿真应用中,该方法为传播模型的合理选择提供了思路,保证了仿真的精度,同时也为电磁环境仿真中传播模型本地化提供了依据。