数字普惠金融与农业高质量发展水平的收敛性研究

采用2011—2018年省际面板数据,建立农业高质量发展的指标体系,测算我国28个省份的农业高质量发展水平,基于测算结果分析农业高质量发展水平的收敛性。结果表明:我国农业高质量发展水平存在区域差异,东部地区农业高质量发展水平最高,其次是中部地区和西部地区;农业高质量发展水平在全国及区域层面上均呈现收敛性特征,东部地区收敛速度最慢、中部地区最快。同时进一步分析了数字普惠金融对农业高质量发展的影响,并借助条件收敛模型探讨数字普惠金融对农业高质量发展的收敛效应。总体表明:无论是从全国层面还是从东部、中部、西部三大地区来看,我国数字普惠金融的发展与农业高质量发展水平呈正相关关系;数字普惠金融发展提高了全国及东部、中部、西部的农业高质量发展水平的收敛速度,有利于农业高质量发展水平的区域均衡发展。     

银行数字普惠金融、银行竞争与企业融资约束

基于中国31个省份的相关数据,使用变异系数法构建银行数字普惠金融指数,以中小企业板上市公司为研究样本,讨论竞争程度变化时银行数字普惠金融对中小企业融资约束的影响及变化.研究发现:银行数字普惠金融发展有利于缓解中小企业融资约束,当银行竞争程度较高时,缓解作用更加明显.同时,相对于民营中小企业,银行数字普惠金融发展对国有中小企业融资约束的缓解作用更加明显,反映了当前银行在发展数字普惠金融时存在选择偏向问题.但随着银行竞争的提高,这种问题有所缓解.     

高可靠低功耗Ka频段星载有源相控阵冗余备份技术

与传统的星载平台大多用开关来备份高失效率的微波通道模块不同,提出以无源器件来替代开关进行冗余备份的方法,将电桥集成于原有的波束形成网络,对Ka频段星载有源相控阵中的变频模块进行冷备份。设计并研制了集成电桥的波束形成网络,在23.5~25 GHz工作频段内,该网络的测试驻波比小于1.8,均方根幅度一致性小于0.4 dB,均方根相位一致性小于4.8°,插入损耗小于2.6 dB。相比使用开关等有源器件,这是一种更简单、高可靠、低功耗的冗余备份技术,非常适用于星载有源相控阵。     

城市中小河流河长制的建设实践与思考

城市中小河流面广量大,地方有相对独立的统筹治理能力和自主权,近几年虽然开展了大量城市中小河流河长制建设,取得了一定成效,但是整体建设工作仍比较滞后。针对城市中小河流河长制建设的不足,在分析借鉴欧洲莱茵河城市段的法制建设、江苏省无锡市河长制实践、浙江绍兴市政企合作和智慧河长信息技术平台方面成功经验基础上,建议加强社会力量参与、完善法律法规体系、强化压实责任机制、创新数字河湖管理平台、控制过剩高耗水产能等对策建议,不断深化与完善城市中小河流河长制,使之成为可持续的长效机制。     

新基建在中国经济结构转型中的作用及发展效应

新基建通过数字转型、智能升级、融合创新有效支撑中国经济社会发展,全面提升国家科技制造能力.大力推进新基建的实施对中国经济向高科技、高质量转型有着意义重大.从新基建的背景与概念入手,分析新基建对中国具有支撑经济数字化、高质量发展,促进供应链升级、提升国际竞争力,拉动消费需求、优化供给侧结构的战略作用,以及推进"一带一路"高质量发展、推动智慧城市建设的发展效应.最后提出促进新基建发展的建议.     

Conceptualising a digital orientation: antecedents of supporting SME performance in the digital economy

Digital technologies have dramatically changed the organisation and marketing environments. Whether this presents an opportunity or a challenge for small and medium organisations depends on how these organisations approach it, strategically. Specifically, organisations that are guided by a combination of market, learning and entrepreneurial orientations are well-positioned to take advantage of the opportunities presented by digital technologies because they adopt attitudes and behaviours that support the generation and use of market insight, proactive innovation and openness to new ideas. We call this combination the digital orientation (DO), and present a set of propositions that facilitate its development. This paper creates value both through the conceptualisation of the DO and the outlining of the implications for strategic marketing management of understanding the strategic factors supporting or hindering the performance of small and medium enterprises in the digital economy.     

Power and responsibility: Advertising self-regulation and consumer protection in a digital world

While advertising self-regulation is generally considered effective in a closed, largely country-based system, the digital world in which we now live is an open and global system. This raises challenges for consumer protection from national regulators trying to enforce compliance from global media platforms, advertisers, and consumers. Applying the power-responsibility equilibrium, this study explores who has the power and who has the responsibility for advertising self-regulation in a digital world. In doing so, it takes an ethnographic approach, eliciting insights from 18 key stakeholders in the self-regulatory process, across the three geographical areas of Europe, United States, and Asia-Pacific. The findings highlight the need for more collaboration and alignment of self-regulatory systems and build a framework for action through embedding responsibility, aligning standards, initiating processes, and improving outcomes. Six recommendations are offered to restore the balance of power and responsibility.     

可实时更新任意函数和图形波形的发生器IP核设计

基于直接数字频率合成（DDS）原理、可编程片上系统（SoPC）技术和Avalon总线规范，结合软件编程技术，设计了一个通过PC软件可实时产生任意函数表达式波形和人工图形绘制波形的任意波形信号发生器。该信号发生器包括具有独特调制方法及多功能DDS IP核设计、用于通信控制接口的Nios II软件设计和函数波形产生与图形波形编辑的PC软件与界面设计。给出了4种设计波形与实际输出波形的测试验证结果。在该信号发生器运行时，通过PC端上位机软件可十分方便且实时地更新波形，并通过函数方式与图形方式相结合，真正实现任意波形信号的产生。     

Utilizing mobile devices to enrich the learning style of students

As digital technologies evolve in education, business faculty have increased access to an extensive range of mobile devices and online applications to help them inspire students' passion for learning. Adopting new digital approaches to teaching can also enhance the learning style of students who are immersed in the use of digital devices. How can the use of these devices and associated applications (apps) help students broaden the opportunities for a more effective learning experience? In this exploratory article, the authors examine the impact of two mobile apps—Flipboard and Stitcher—on students' learning and engagement with class-assigned marketing materials. Students enjoyed Flipboard more than Stitcher in contributing to the requirements of class work.