基于用户体验的短视频APP设计研究

目的从用户体验的角度出发,研究较为典型的短视频应用的用户体验差异,为短视频应用的未来设计发展提出有效建议。方法从用户在使用短视频应用时的感官体验、交互体验、心理体验三个方面,分析、对比和研究两款典型的短视频应用(抖音短视频、快手短视频)的视觉界面、听觉体验、交互特点及用户心理,归纳两款应用的异同点和优缺点,总结出短视频应用基于用户体验的设计方法和策略。结论两款短视频应用在用户体验设计方面各有其优缺点和特点。在短视频应用的设计中,要充分考虑用户在感官、交互和心理三方面的体验,提升使用沉浸感、内容多样化及设计精细化,设计出良好的产品模式,以实现用户目标,满足用户需求,优化用户体验,提高用户粘性,从而提升短视频APP自身的价值和竞争力。     

基于武汉洪山广场站的换乘服务系统创新设计

目的通过分析当前地铁换乘过程中存在的问题,从交互设计角度提出新型地铁换乘APP服务系统设计想法,切实提高用户出行效率和换乘体验。方法以武汉地铁2号线洪山广场站换乘视觉引导系统为研究对象,分析了现有的地铁换乘APP服务系统的问题,调研了大量用户实地换乘的切身体验与问题。从用户、行为、场景、技术等4个方面提升和改良现有地铁换乘APP服务系统,运用了增强现实技术并结合实时定位,为用户换乘时规划线路和提供实时线路引导,提高换乘效率。结论寻找提高地铁内换乘体验和效率的解决方法必须从深入分析交互设计构成要素入手,充分考虑用户群在地铁环境内的换乘行为与目标需求,才能设计出高效的换乘服务系统设计方案。     

基于移情原理的家用急救APP架构探讨

目的大数据信息时代,智能家电成为研究热点并且逐渐进入消费者家庭中;通过移情设计的方法构建家用急救APP的交互构架,并且与智能监控摄像头相结合,更好地服务于大众。方法通过对市场上现有的急救类APP进行对比分析,以及对用户进行问卷访谈分析,了解人们对于急救知识的掌握程度以及急救类APP的使用情况,同时通过对用户"说"、"做"、"想"的移情研究,搭建家用急救APP交互构架软件,与现有的智能监控摄像头相互结合,从硬件和软件两方面初步构建APP框架。结论现有急救APP针对人群较为广泛,用户使用率低,用户对于急救类知识的了解和掌握程度较低,通过对用户"说"、"做"、"想"的移情研究,搭建新的急救APP交互架构,增加急救APP的丰富度,帮助用户学习急救类知识。     

Atmospheric-pressure plasma treatment on polystyrene for the photo-induced grafting polymerization of N-isopropylacrylamide

Atmospheric-pressure plasma (APP) treatment on polystyrene (PS) substrates by using N₂, He, and He/N₂ gases as working gas were investigated in this study, and photo-induced grafting polymerization of N-isopropylacrylamide (NIPAAm) on APP-treated PS substrates was subsequently applied. From the results of the wetting test, PS substrates treated by He-APP process represented a superior hydrophilicity with a contact angle of less than 10°. Surface analyses by X-ray photoelectron spectroscopy (XPS) indicated that functional groups of the carbonyl group (C = O) and carboxyl group (O-C-O) were generated on the surface of PS substrates after APP processes, which were most likely to enhance the surface hydrophilicity. Additionally, the thermosensitive poly-(NIPAAm) grafted on APP-treated PS substrates exhibited a hydrophilic surface (θ_H2O = 32°) below low critical soluble temperature (LCST), and converted into the hydrophobic surface (θ_H2O = 63°) as the ambient temperature exceeded LCST (> 33 °C). Our results suggest that the pre-treatment of PS substrates by APP process can increase the surface hydrophilicity and also be beneficial to the photo-induced grafting polymerization of NIPAAm on PS substrates.     

基于卡诺与质量功能展开的老年人手机APP设计研究

目的为有效识别老年用户的核心需求,提高老年人对手机用户界面操作的满意度。方法先根据卡诺模型分析老年人需求,明确不同需求的性质,进而确定其权重;再基于质量功能展开理论,将用户需求转化为设计要求,计算其重要度并确定关键设计要求;最后,依据关键设计要求,对设计方案进行规划与展开。结论将卡诺模型与质量功能展开相结合,以老年人手机音乐类APP界面设计为例进行研究,结果表明卡诺与质量功能展开方法可为以使用者为导向的用户界面设计提供参考。     

智能Agent技术在CAPP系统中的应用

智能Agent技术已经成为分布式人工智能领域的一个研究热点,吸引了越来越多研究者的关注.本文简单介绍了Agent、MAS的基本概念和CAPP系统的基本组成,在此基础上提出了一种基于MAS技术的CAPP系统体系结构,阐述了系统中各主要Agent的功能,探讨了系统的实现方法,同时实现了一个基于MAS的线切割自动编程系统,最后对基于MAS技术的CAPP系统与传统的CAPP系统的优缺点进行了比较.     

Evaluation of Atactic Polypropylene (APP) geomembranes used as liners for salt ponds

This study focused on evaluating the longevity of Atactic Polypropylene (APP) used as a geomembrane (GM) to line ponds that collect runoff water from salt handling facilities. Samples of APP were exhumed from the ponds that have been in service for 6-, 25-, and 44-years and evaluated in the laboratory. Tests were conducted to analyze the surface cracks and textures, tensile properties, puncture resistance, and ability to hold water (permeability). Control tests were conducted with virgin APP GM. Results were compared based on the difference in the age of the APP, location of where the APP samples were obtained within the side slope of the pond (i.e., submerged, and above water level), and orientation of the side slope in relation to the sun (e.g., east, west, north, or south). Based on the field observations and laboratory evaluations, it was determined that exposure to sunlight accelerates the degradation more so than the chemical degradation that occurs due to the salt content within the pond water. The samples exhumed from the north slope (south-facing) had more severe degradation due to high solar radiation energy deposition.     

基于煤矿安全双控机制的APP系统北大核心

针对我国煤矿安全信息管理中数据采集手段落后、智能化水平较低、数据汇总与分析能力不足的问题,基于煤矿安全双重预防工作机制,提出利用SQLite数据库技术和C/S架构,运用生命周期模型的软件开发方法,设计包括服务、风险分级管控、隐患排查治理、小程序、公告、学习等多种功能模块的APP系统,加入电子风险空间分布图、基于Apriori算法的隐患数据分析、事故隐患定位巡检等关键技术,并进行了现场应用。结果表明:APP系统将风险与隐患排查过程中纸质工作方式电子化,为安全管理人员提供了方便的工作环境,减少了数据处理的繁杂工作量,为提高安全管理水平和实现煤矿安全标准化提供了技术支持。     

LiMn2O4 Li-ion hybrid supercapacitors processed by nitrogen atmospheric-pressure plasma jet

LiCl–Mn(NO₃)₂·4H₂O pastes were screen-printed on a carbon cloth substrate and furnace-calcined to convert them into LiMn₂O₄. The LiMn₂O₄ electrode was then post-processed using a nitrogen atmospheric-pressure plasma jet (APPJ). APPJ processing created oxygen vacancy defects on the electrode surface. Electrochemical tests of the Li-ion hybrid supercapacitors (Li–HSCs) were performed by cyclic voltammetry (CV) and galvanostatic charging/discharging (GCD) in 1-M Li₂SO₄ aqueous solution. The results indicate that proper APPJ treatment optimizes the Li–HSCs performance, whereas excessive APPJ treatment may cause material damage. After 3-min APPJ treatment at 620 °C, the Li–HSCs exhibited a maximum areal capacitance of 87.96 mF/cm² with capacitance retention of 124.8% after a 1000-cycle CV test.     

作战飞机智能座舱研究

传统机载座舱使得机组成员的生理、心理和智力限制成为立体作战环境人机回路中的薄弱环节,智能座舱的研究应运而生.详细阐述了作战飞机座舱的发展情况、适应战场环境的智能座舱内涵,提出智能座舱应成为机组人员的"智能助手",以支撑安全、高效地完成飞行和作战任务.分析了智能座舱急需研究的关键技术,即支持沉浸感知的四维大态势显示技术、支持武器即插即用的人机交互界面技术、多通道人机控制技术和顺应未来机组习惯的"APP+"人机交互界面技术,提出解决这些关键技术的具体研究方法.分析表明:基于"APP+"的机载座舱显示技术是未来智能座舱的发展趋势.