应用型本科院校国际经济与贸易专业实训教学模式研究

目前,仍有一部分应用型本科高校依然以理论教学为主,实训教学欠缺。通过对国际经济与贸易专业实训教学现状进行分析,进而从构建实训模块、合理安排实训课程时间、加强校外实训基地建设、提升教学师资队伍以及专业竞赛等方面提出了国际经济与贸易专业实训教学模式构建及实施路径,完善创新应用型本科国际经济与贸易专业的实训教学环节。     

宏观经济学课程思政教学实施探析 ——以广西科技大学的教学实践为例

课程思政是新时代下高等院校实施教育教学改革的重要途径,也对高校教师探索课程教学模式创新提出更高要求。课程思政既是一种彰显"学科道德价值"的教学理念突破,也是一场追求"成人且成才"的教学模式改革,更是一次力争"构思精准"的教学系统设计。作为学科基础课程的宏观经济学具有知识特性、教学资源和师资队伍等优势,可采用"分析学情—设计目标—构思方案—组织教学—反馈体验"的思政教学"五步法"推进课程思政的教学改革。开展课程思政还需关注三个细节:一是教学理念不盲;二是教学组织不模糊;三是教学方法不固化。     

高新技术企业并购的动因及协同效应分析 ——以天泽信息并购深圳有棵树为例

横向并购已经成为企业扩大规模的一项重要举措,众多企业并购的目的之一在于快速获得协同效应,促进企业发展壮大.目前对于企业并购所产生的协同效应,多集中于大样本的实证研究,研究企业也多为制造业.本文基于高新技术企业天泽信息并购深圳有棵树,进行个案分析.     

Managing digital business platforms: A continued exercise in balancing renewal and refinement

Central to the evolution of a digital business platform is the organization’s ability to balance exploration (renewal) and exploitation (refinement) simultaneously. Drawing on prior research—including digital platforms, contradictory tensions, and organizational ambidexterity—and our own experience investigating digital business platforms in organizations, this article provides insights into how executives can manage this evolution successfully. More specifically, we present a framework recognizing three pairs of organizational capabilities (i.e., identifying-nourishing, expanding-legitimating, and augmenting-embedding) that enable balancing renewal and refinement of the platform over time. We close by providing critical managerial practices that executives can use in anticipating, adjusting, and evaluating the evolution of a digital business platform over time, including its initiation, development, and growth.     

Um—5微小型石英晶体谐振器

本文简要介绍石英晶体谐振器小型化的发展概况及Ｕｍ－５微小型石英晶体谐振器的设计、制造工艺。文中对该产品的应用情况也作了简单说明。该产品的频率制造公差在±１０ｐｐｍ以内，当工作温度范围分别为０℃￣６０℃，－２０℃￣＋６０℃时，可以达到±５ｐｐｍ，±１０ｐｐｍ内的小公差。Ｕｍ－５微小型石英晶体谐振器体积小，且质量稳定可靠，它们是移动通信等电子设备中良好的电子元器件。     

一种Link16信号的检测识别算法

在Link16信号侦察中,Link16信号的检测识别是实现信号分选的基础和关键。设计了一种基于双滑动窗的自适应双门限Link16信号检测识别算法,具有检测识别准确率高、实时性好、易于工程实现的特点。仿真结果表明,当信噪比在7 dB以上时,脉冲检测识别正确率均在95〖WT《Times New Roman》〗%〖WTBZ〗以上。     

直升机卫星通信系统信道模拟与通信实现

针对直升机卫星通信系统中直升机旋翼对通信信道造成的周期性衰落问题,采用射频收发器AD9361模拟了信道周期性衰落模型,基于此模型在现场可编程门阵列(Field Programmable Gate Array,FPGA)上优化并实现了缝隙检测算法。根据信道衰落模型和缝隙检测算法及数据链路速率和带宽的要求,提出了一套直升机卫星通信系统可靠通信方案,即前向链路采用重发和分集接收及短码LDPC编码技术,返向链路根据前向链路缝隙检测的结果在无遮挡缝隙采用突发通信和长码低密度奇偶校验(Low Density Parity Check,LDPC)编码技术,实现可靠通信。系统测试结果表明,该方案不受直升机机型限制,系统可在40%遮挡率下实现前向链路25.6 kb/s和返向链路4 Mb/s速率下的可靠通信。     

航天测控信号处理平台的现状与发展趋势

航天测控信号处理平台是航天地面测控系统中不可或缺的核心处理设备。以近十年实际工作中开发交付的一系列航天测控信号处理平台为研究对象,通过对各平台架构、功能性能的系统分析,总结了航天测控信号处理平台的发展现状并梳理了航天测控信号处理平台的发展趋势。     

科技创新中心的演化路径研究

知识经济时代,科技创新中心已成为国家提升综合国力的战略支点。对科技创新中心演化路径、发展特征进行剖析,将有助于各参与主体根据科技创新中心不同发展阶段实施不同的发展策略。文章基于特征功能、发展模式、演化路径等不同视角对国内外科技创新中心研究现状进行系统梳理,在科技创新中心构成要素、要素的演化分析基础上,明确科技创新中心演化路径的分析框架,并利用上述分析框架对伦敦、东京、北京典型科技创新中心演化路径进行研究,为正确判读科技创新中心的发展阶段以及参与主体实施精准、有效的策略提供思路。     

Crowding in the time of COVID: Effects on rapport and shopping satisfaction

Decades of research in marketing has established that crowding (human and spatial) in retail contexts significantly affects shopping satisfaction. Prompted by the profound changes in retail supply and demand due to the Covid-19 pandemic, this study expands knowledge in two ways: uncovering new relationships and replicating some of the critical findings previously demonstrated in the pre-pandemic context. Two studies (Study 1 scenario and Study 2 actual shopping trip) show that higher levels of human crowding results in lower levels of shopping satisfaction, and this effect is mediated by a new construct introduced into the crowding literature, namely, customer rapport with employees, emerging as a significant factor in the pandemic era. Importantly, the results show that these relationships differ according to customers’: a) perceptions about the appropriateness of retailer precautions, b) beliefs about the severity of threat that the pandemic presents, and c) perceived vulnerability to Covid-19, all of them new to crowding dynamics during the time of Covid. Finally, with Study 2, we replicate and extend selected findings from prior research on crowding. Overall, the results expand our understanding of crowding effects and provide novel insights in the “new normal” retail context.