图绘新闻:信息可视化与编辑室内的理念冲突

文章通过对相关学术文献中关于可视化新闻生产的话语构成的检视,以及对瑞士五家新闻机构的可视化编辑的深度访谈,全面勾勒数字化新闻生产与传统新闻生产之间存在的理念冲突,以及这种冲突对于新闻业发展变迁路径的潜在影响.研究发现,可视化新闻生产逻辑将"真实"界定为再现层面上的操作性概念,主张将美学的维度纳入新闻专业主义体系,同时提出了重构新闻价值标准的要求,这对传统新闻理念的权威性构成了显而易见的挑战.文章进而提出可视化新闻生产所遵循的"科学-艺术"观念结构有可能导致整个社会公共空间和文化结构的变迁.     

The powerful image and the imagination of power: the ‘new visual turn’ of the CPC’s propaganda strategy since its 18th National Congress in 2012

This paper adopts the academic tool of discourse analysis to examine the ‘new visual turn’ of the Communist Party of China’s propaganda work since the 18th CPC National Congress when Xi Jinping was inaugurated as the leader of Chinese Communists. A thorough review of the new visual means the Party uses for photojournalism, TV news, animated cartoons and online promotional videos points to three developments markedly different from traditional discursive strategies: a full embrace of Confucian ethics, articulation of the Internet-based popular culture and subcultures, and an effort to fortify Xi’s personal authority as a political idol. The paper concludes that the ‘new visual turn’ of CPC propaganda after the 18th Party Congress suggests that the Communist discourse has evolved to a new stage where sophisticated manipulation of sleek technological tools substantiates a rigorous, dynamic CPC discursive system more at ease with itself and more powerful than ever in shaping the mainstream political culture in China.     

试论演唱者在实践中对声乐作品的诠释

本文就声乐演唱中声乐作品容易被忽视的内容,从三个方面进行分析。概括性地阐述了音乐作品出处、歌词内容方面的不同知识点,并以实例引证为手段,展开论述。     

Serrated lithium fluoride nanofibers-woven interlayer enables uniform lithium deposition for lithium-metal batteries

The uncontrollable formation of Li dendrites has become the biggest obstacle to the practical application of Li-metal anodes in high-energy rechargeable Li batteries. Herein, a unique LiF interlayer woven by millimeter-level, single-crystal and serrated LiF nanofibers (NFs) was designed to enable dendrite-free and highly efficient Li-metal deposition. This high-conductivity LiF interlayer can increase the Li⁺ transference number and induce the formation of ‘LiF–NFs-rich’ solid–electrolyte interface (SEI). In the ‘LiF–NFs-rich’ SEI, the ultra-long LiF nanofibers provide a continuously interfacial Li⁺ transport path. Moreover, the formed Li–LiF interface between Li-metal and SEI film renders low Li nucleation and high Li⁺ migration energy barriers, leading to uniform Li plating and stripping processes. As a result, steady charge–discharge in a Li//Li symmetrical cell for 1600 h under 4 mAh cm⁻² and 400 stable cycles under a high area capacity of 5.65 mAh cm⁻² in a high-loading Li//rGO–S cell at 17.9 mA cm⁻² could be achieved. The free-standing LiF–NFs interlayer exhibits superior advantages for commercial Li batteries and displays significant potential for expanding the applications in solid Li batteries.     

Magnetically encoded 3D mesostructure with high-order shape morphing and high-frequency actuation

Inspired by origami/kirigami, three-dimensional (3D) mesostructures assembled via a mechanics-guided approach, with reversible and maneuverable shape-morphing capabilities, have attracted great interest with regard to a broad range of applications. Despite intensive studies, the development of morphable 3D mesostructures with high-order (multi-degree-of-freedom) deformation and untethered high-frequency actuation remains challenging. This work introduces a scheme for a magnetically encoded transferable 3D mesostructure, with polyethylene terephthalate (PET) film as the skeleton and discrete magnetic domains as actuation units, to address this challenge. The high-order deformation, including hierarchical, multidirectional and blending shape morphing, is realized by encoding 3D discrete magnetization profiles on the architecture through ultraviolet curing. Reconfigurable 3D mesostructures with a modest structural modulus (∼3 GPa) enable both high-frequency (∼55 Hz) and large-deformation (∼66.8%) actuation under an alternating magnetic field. Additionally, combined with the shape-retention and adhesion property of PET, these 3D mesostructures can be readily transferred and attached to many solid substrates. On this basis, diverse functional devices, including a switchable colour letter display, liquid mixer, sequential flashlight and biomimetic sliding robot, are demonstrated to offer new perspectives for robotics and microelectronics.     

Cyclic-anion salt for high-voltage stable potassium-metal batteries

Electrolyte anions are critical for achieving high-voltage stable potassium-metal batteries (PMBs). However, the common anions cannot simultaneously prevent the formation of ‘dead K’ and the corrosion of Al current collector, resulting in poor cycling stability. Here, we demonstrate cyclic anion of hexafluoropropane-1,3-disulfonimide-based electrolytes that can mitigate the ‘dead K’ and remarkably enhance the high-voltage stability of PMBs. Particularly, even using low salt concentration (0.8 M) and additive-free carbonate-based electrolytes, the PMBs with a high-voltage polyanion cathode (4.4 V) also exhibit excellent cycling stability of 200 cycles with a good capacity retention of 83%. This noticeable electrochemical performance is due to the highly efficient passivation ability of the cyclic anions on both anode and cathode surfaces. This cyclic-anion-based electrolyte design strategy is also suitable for lithium and sodium-metal battery technologies.     

工程量清单计价对造价咨询机构业务的影响及对策

随着我国的入世和建筑业的逐步对外开放,按国际惯例进行工程量清单计价已成为造价咨询机构必须面对的问题。长期以来,我国实行的是以定额为主的计价模式,属于计划经济的范畴,已不能适应改革开放的需要。因此工程计价改革势在必行。工程造价咨询业是近几年发展起来的社会中介机构,为了加快建筑工程计价模式与国际接轨的步伐,必须建立以工程量清单为计价平台的工程计价模式。通过了解和分析工程量清单计价的计算规则、分部分项工程项目的划分,以及清单计价的特点和清单计价与定额计价的区别,才能立于不败之地。     

基于红色基因传承的高校爱国主义教育实践路径研究

红色基因融入高校爱国主义教育,为基于红色基因传承的高校爱国主义教育的发展奠定理论基础。基于红色基因传承的高校爱国主义教育的实践路径应该实现第一课堂和第二课堂协同发展,筑牢爱国主义教育主阵地、线上教育与线下教育有机结合,畅通爱国主义教育主渠道、教育主体与教育客体双向互动,强化爱国主义教育主战线等方面入手。运用多形式、多媒体和多渠道将红色基因融入高校爱国主义教育的全过程,使红色教育资源在爱国主义教育中发挥最大效用。     

Webquest在信息检索课教学中的应用

介绍Webquest的概念、特点和组成,并将其应用于信息检索课教学,同时指出信息检索课使用Webquest应注意的问题。     

电子纸阅读器及其对数字图书馆的影响

指出数字图书馆大规模发展的两大难题:缺乏合适的阅读介质和盗版导致的版权问题,认为可以使用电子纸阅读器作为数字图书理想的阅读介质,使用封闭式系统与硬件加密对抗盗版。并分析电子纸阅读器对数字图书馆的积极影响。