TECHNOLOGY AND INFORMATION科学与信息化2023年9月上 145Adobe After Effects在精品微课制作中的应用*邓炯1,2 何伟强1,2 卫树花1,21. 广西大学行健文理学院 广西 南宁 530005；2. 广西农业职业技术大学 广西 南宁 530009摘 要 随着信息技术的发展、在线学习的普及，微课作为一种新的教学载体，正逐步改变着传统的课堂教学模式。
提升微课制作能力已成为时代对高校教师提出的一项新要求。
After Effects是一款常用视频特效编辑工具，具备强大的视觉效果制作和视频剪辑合成功能。
通过介绍After Effects软件在制作微课片头、人物抠像和美化、动画制作、添加文字特效等方面的应用和技巧，以期望帮助高校教师提高精品微课的制作水平。
关键词 微课；视频制作；抠像；视觉效果Application of Adobe After Effects in Production of High-Quality Micro-Lectures Deng Jiong 1,2, He Wei-qiang 1,2, Wei Shu-hua 1,21. Xingjian College of Science and Liberal Arts, Guangxi University, Nanning 530005, Guangxi Zhuang Autonomous Region, China;2. Guangxi V ocational University of Agriculture, Nanning 530009, Guangxi Zhuang Autonomous Region, ChinaAbstract With the development of information technology and the popularization of online learning, micro-lecture, as a new form of teaching carrier, is gradually changing the traditional classroom teaching model. Improving the ability to produce micro-lectures has become a new requirement for university teachers in this era. After Effects is a commonly used video effect editing tool with powerful visual effects production and video clipping and synthesis functions. This paper introduces the application and techniques of After Effects software in producing micro-lecture opening videos, character keying and beautification, animation production, and adding text special effects, aiming to help university teachers improve the production level of high-quality micro-lectures.Key words micro-lecture; video production; keying; visual effects引言随着现代信息技术的快速发展，传统教育模式已无法满足学生对于学习方式的多样需求。
物 理 化 学 学 报Acta Phys. -Chim. Sin. 2023, 39 (8), 2205012 (1 of 10)Received: May 6, 2022; Revised: May 26, 2022; Accepted: May 27, 2022; Published online: June 9, 2022. *Correspondingauthors.Emails:********************.cn(Y.S.);*******************.cn(L.C.).This project was supported by the National Key Research and Development Program of China (2021YFB3800300) and the National Natural Science Foundation of China (21733012, 22179143).国家重点研究发展项目(2021YFB3800300)和国家自然科学基金(21733012, 22179143)资助© Editorial office of Acta Physico-Chimica Sinica[Article] doi: 10.3866/PKU.WHXB202205012 A Single-Ion Polymer Superionic ConductorGuoyong Xue 1,2, Jing Li 2, Junchao Chen 3, Daiqian Chen 2, Chenji Hu 2,3, Lingfei Tang 1,2, Bowen Chen 1,2, Ruowei Yi 2, Yanbin Shen 1,2,*, Liwei Chen 2,3,*1 School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China.2 i-Lab, CAS Center for Excellence in Nanoscience, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Science,Suzhou 215123, Jiangsu Province, China.3School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240, China.Abstract: All-solid-state batteries (ASSBs) have been considered a promising candidate for the next-generation electrochemical energy storage because of their high theoretical energy density and inherent safety. Lithium superionic conductors with high lithium-ion transference number and good processability are imperative for the development of practical ASSBs. However, the lithium superionic conductors currently available are predominantly limited to hard ceramics. Practical lithium superionic conductors employing flexible polymers areyet to be realized. The rigid and brittle nature of inorganic ceramic electrolytes limits their application in high-performance ASSBs. In this study, we demonstrate a novel design of a ternary random copolymer single-ion superionic conductor (SISC) through the radical polymerization of three different organic monomers that uses an anion-trapping borate ester as a crosslinking agent to copolymerize with vinylene carbonate and methyl vinyl sulfone. The proposed SISC contains abundant solvation sites for lithium-ion transport and anion receptors to immobilize the corresponding anions. Furthermore, the copolymerization of the three different monomers results in a low crystallinity and low glass transition temperature, which facilitates superior chain segment motion and results in a small activation energy for lithium-ion transport. The ionic conductivity and lithium-ion transference number of the SISC are 1.29 mS·cm −1 and 0.94 at room temperature, respectively. The SISC exhibits versatile processability and favorable Young’s modulus (3.4 ± 0.4 GPa). The proposed SISC can be integrated into ASSBs through in situ polymerization, which facilitates the formation of suitable electrode/electrolyte contacts. Solid-state symmetric Li||Li cells employing in situ polymerized SISCs show excellent lithium stripping/plating reversibility for more than 1000 h at a current density of 0.25 mA·cm −2. This indicates that the interface between the SISC and lithium metal anode is electrochemically stable. The ASSBs that employ in situ polymerized SISCs coupled with a lithium metal anode and various cathodes, including LiFePO 4, LiCoO 2, and sulfurized polyacrylonitrile (SPAN), exhibit acceptable electrochemical stability, including high rate performance and good cyclability. In particular, the Li||LiFePO 4 ASSBs retained ~ 70% of the discharge capacity when the charge/discharge rate was increased from 1 to 8C . They also demonstrate long-term cycling stability (> 700 cycles at 0.5C rate) at room temperature. A capacity retention of 90% was achieved even at a high rate of 2C after 300 cycles at room temperature. Furthermore, the SISCs have been applied to Li||LiFePO 4 pouch cells and exhibit exceptional flexibility and safety. This work provides a novel design principle for the fabrication of polymer-based superionic conductors and is valuable for the development of practical ambient-temperature ASSBs.Key Words: All-solid-state lithium metal battery; Solid polymer electrolyte; Superionic conductor;Single-ion conductor; In situ polymerization; Rate performance单离子聚合物快离子导体薛国勇1,2，李静2，陈俊超3，陈代前2，胡晨吉2,3，唐凌飞1,2，陈博文1,2，易若玮2，沈炎宾1,2,*，陈立桅2,3,*1中国科学技术大学纳米技术与纳米仿生学院，合肥 2300262中国科学院苏州纳米技术与纳米仿生研究所，创新实验室卓越纳米科学中心，江苏苏州 2151233上海交通大学化学化工学院，上海 200240摘要：具有高锂离子迁移数和良好可加工性能的锂快离子导体对于全固态电池的发展非常重要。
