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。     

智能手机视频APP交互体验设计的趋同性探析

目的分析智能手机视频APP交互体验设计的趋同性,探讨创新设计的策略。方法以腾讯视频、爱奇艺、优酷视频为例,进行视频APP交互体验设计的趋同性表现分析,从传统文化、用户认知与行为、用户体验要素角度,挖掘视频APP交互体验设计趋同的根源,并探讨视频APP交互体验设计的创新策略。结论视频APP交互体验设计应在文化传承中,在尊重用户认知和行为规律的基础上,把握用户体验设计的要素,实现设计的创新与突破。     

基于心流理论的健身APP设计研究

目的提升用户在使用健身APP过程中的用户体验。方法通过对目标用户的行为进行分析,总结用户体验阶段的特征及表现,提炼出相对应的心流体验的要素和设计因素。从清晰的目标任务、愉悦的界面表现、有效的操作交互和激励沉浸的情感体验这4个层面,总结能激发心流体验的16个健身APP的设计原则。在此基础上,建立了心流理论视角下的健身APP设计模型。以瑜伽健身运动为例,设计了一款Yogaland APP。结论将心流理论引入健身APP的设计研究中,能显著影响用户的行为动机,满足用户的情感需求,创造丰富全面的互动体验,为现有的健身APP设计提供一定的方向。     

基于UCD的直播类APP交互设计策略研究

目的探求直播类APP的交互设计策略。方法基于UCD(以用户为中心)的视角下,以直播APP映客为例,探讨其交互设计方法,并在此基础上,提出具有良好用户体验的直播类APP的设计思路与策略。结论直播类APP的设计要以用户为中心(UCD),同时融合UED和UGC的设计理念,产品设计要重视产品价值、易用性、可抵达性、吸引度4个方面,以设计出合理的交互模式,优化用户体验,增强用户黏度,进而提升自我市场竞争力。     

抖音短视频音乐传播可视化设计研究

随着短视频媒体形态的发展以及大众娱乐方式的变革,短视频在音乐大众化传播领域占据了不可或缺的地位。竖屏独特的视频形态增添了很多新的商业变现途径,也让商业产品的宣发竞争愈发激烈,对于竖屏的视频传播可视化设计需求日渐凸显。本文以音乐类短视频平台——“抖音”为例,对其音乐可视化传播活动及价值进行分析解读,找到音乐可视化特定要素,进行短视频再设计。通过分析竖屏视频快速发展的成因、手机用户信息需求和使用习惯等,分别从音乐可视化概念的特点、优势、设计要素及传播美学等方面进行探讨,尝试将音乐审美与短视频视觉表达手段相结合,以展示“视听结合”的多元艺术表现形式,进而研究听觉与视觉语言之间的关联和转换。研究发现自媒体带动了电子媒介人的崛起,从电子媒介人的基本概念出发,认识到电子媒介人是该媒介社会中的传播主体,进一步理解以“抖音”为主的短视频APP带来的“人人皆创作者”的自媒体属性,在一定程度上促进了“抖音”等短视频APP的音乐可视化发展。     

基于心流理论的产品交互设计研究综述

目的 目前心流理论主要应用在教育教学及计算机等方面,在产品交互设计领域的研究还处于探索阶段,有必要分析心流理论的交互设计适用性,提出基于心流理论的产品交互设计方法。方法 通过文献研究法、归纳法,梳理心流理论的国内外研究进展,分析心流交互体验的实际验证方法,从产品角度提出心流理论在交互设计中的应用方式,对心流理论在产品交互设计中的启发性原理进行总结。结论 心流是一种积极情绪的体验,在适当情境下能够提升用户体验。通过建立清晰的用户目标、维系挑战与技能的提升、给予有效的操作反馈三个主要方面,对基于心流理论的产品交互设计方法进行拓展,丰富产品交互设计与心流理论相结合的理论空间,为产品交互设计方法研究提供参考。     

基于心流理论的儿童智能手表交互界面设计研究

目的 以儿童为研究对象,探究可生成心流体验的儿童智能手表交互界面设计方法。方法 基于认知心理中的心流理论,通过ROSTCM6文本分析词频软件获取用户评价;结合儿童心理与行为特征,分析其使用智能手表过程中的交互触点,发现设计机会与意义;将心流理论的三个环节分解成具体设计要点,构建儿童智能手表设计方法;提出提供明确的目标和任务、呈现舒适的界面视觉、制定高效的操作交互、提供如临其境的情感体验等交互设计策略和指导思路。结果 通过用户测试,验证了心流框架的有效性与设计策略的合理性。结论 基于心流理论视角的儿童智能手表交互界面设计方案,有效提高了产品交互效率,在产品交互设计领域具有指导意义。     

基于心流PAT模型的界面设计策略研究

目的 以PAT模型为视角,探究心流体验在事前阶段下的相关界面设计策略。方法 基于PAT模型,从用户、工具、任务三个层面对现有心流体验在事前阶段下互联网产品领域研究成果进行分类分析,并归纳总结出具体的前因要素,通过文献研究法、归纳法、案例分析法,针对不同的前因要素提出相应的界面设计策略。结论 针对用户层面的界面设计策略包括包容的多层次用户定位、有效且专注的时间区间设置、具备引导性的交互功能设定、趣味的感知信息提示;针对工具层面的界面设计策略包括清晰明确的界面布局、可感知的操作线索、个性化定制内容、简洁的操作服务流程、沉浸式社交互动元素;针对任务层面的界面策略包括可调节的难度动态平衡、分段式任务目标设定、多样化奖励激励机制、及时且有效的反馈机制。本次研究成果进一步深化了心流理论在界面设计领域的策略研究。     

基于心流理论的移动学习应用交互设计研究

目的探究可提升移动学习类应用用户体验的交互设计方法。方法从心流理论的视角出发,将其3个条件因素分解成具体设计注意点,通过研究学习者的心理与行为特征以及学习过程中和产品的接触点,构建符合移动学习类应用的交互设计方法,并将该理论运用于实际项目中。结论通过将心流理论与移动学习应用的设计相结合,为学习者提供清晰明确的学习目标、准确即时的学习反馈、技能与挑战平衡的学习任务,从而创建出高效和有趣的沉浸式学习体验。     

基于“6A”用户体验模型的慢性病健康管理APP设计策略研究

目的 探求慢性病健康管理类APP的用户体验设计策略,以提高用户留存率,从而使用户健康真正能够从移动医疗健康管理中获益。方法 从“6A”用户体验设计模型理论出发,对“糖护士”糖尿病管理APP中完成“添加数据”交互行为的用户体验进行优化。结合目标级层面分析,从期望级、任务级、行为级、外观级、活跃级入手进行体验设计。并在此基础上,总结具有良好用户体验的慢病管理类APP的设计策略。结果 从功能内容层、情感体验层、交互操作层、外观表现层面,总结具有良好用户体验的慢病管理类APP的设计策略。结论 通过设计实践可知,“6A”用户体验设计模型可以为设计优良用户体验的慢病管理类APP提供新的思路和视角。带来的设计启示为:明确重要功能,保持信息层级简化;营造用户控制感,传达积极情绪;制定快速且简化的交互流程;秉持适度功能主义,采用情景化的视觉语言。     

Insertion of triangulated surfaces into a meccano tetrahedral discretization by means of mesh refinement and optimization procedures

In this paper, we present a new method for inserting several triangulated surfaces into an existing tetrahedral mesh generated by the meccano method. The result is a conformal mesh where each inserted surface is approximated by a set of faces of the final tetrahedral mesh. First, the tetrahedral mesh is refined around the inserted surfaces to capture their geometric features. Second, each immersed surface is approximated by a set of faces from the tetrahedral mesh. Third, following a novel approach, the nodes of the approximated surfaces are mapped to the corresponding immersed surface. Fourth, we untangle and smooth the mesh by optimizing a regularized shape distortion measure for tetrahedral elements in which we move all the nodes of the mesh, restricting the movement of the edge and surface nodes along the corresponding entity they belong to. The refining process allows approximating the immersed surface for any initial meccano tetrahedral mesh. Moreover, the proposed projection method avoids computational expensive geometric projections. Finally, the applied simultaneous untangling and smoothing process delivers a high‐quality mesh and ensures that the immersed surfaces are interpolated. Several examples are presented to assess the properties of the proposed method.     

Certification Institutions Expected to Update and Transfer Information on Present Standards

Standards are the basis for production enterprises to organize production, ex-factory inspection, trade (delivery) and technical exchanges, product certification, quality arbitration and supervision.……     

Flow calorimeter for enthalpy increment measurements on condensed gases

A flow calorimeter for enthalpy increment measurements on condensed gases is presented. A better knowledge of the properties of the liquefied natural gas is needed, and therefore a liquid loop has been designed for our flow calorimeter. The fluid loop in the calorimeter is designed in order to avoid the two-phase region, since two phases would give compositional disturbances in the measurements. The avoidance of the two-phase region is made possible by increasing the pressure of the test fluid after the measurement section, then heating the fluid at super-critical pressure past the critical point. Finally, the fluid is throttled to the low-pressure gas state at the inlet condition of the compressor that circulates the fluid. To perform the pressure increase, a new cryogenic pump has been designed. To evaluate the new equipment, measurements were taken on liquid ethane over the temperature range 146–256 K at pressure between 0.9 and 5.1 MPa.     

Refrigerators Enter a New Era of Health Preservation Frestech initiates the establishment of China's first standard for household sterilization refrigerators

On November 30, 2007, the China Association for Standardization (CAS) held a press conference at Beijing Diaoyutai State Guest House. Leaders from the China Household Electric Appliance Research Institute, the China Household Electric Appliance Association, and the China Consumers' Association attended and made speeches.……     

Optimum-Simulation von Ernteprozessen

Zusammenfassung Bei der Gestaltung von Ernteprozessen — beispielsweise des Prozesses Mähdrusch, Körnertransport und -abnahme — als transportverbundene Fließarbeitsverfahren mit mindestens zwei verschiedenen Arbeitsmitteln gibt es einen großen Optimierungsspielraum. Solche Prozesse sind mehrstufige Bedienungsprozesse mit gemischter Anordnung der Bedienungseinrichtungen. Außerdem besitzen sie stark ausgeprägte räumliche Aspekte. Es wird vor allem gezeigt, welche Merkmale solcher Prozesse in Simulationsmodellen abgebildet sein müssen, welche Zielgrößen in Abhängigkeit von welchen Einflußgrößen unter Berücksichtigung welcher Prozeßbedingungen ermittelt werden sollten und wie der Bewertungsprozeß zur Ermittlung der gewünschten Informationen gestaltet werden muß.     

A study of centrifugal cast high boron high speed steel

In the present study a high‐boron high speed steel (HSS) roll material was designed. Many expensive alloy elements have been substituted by cheap boron alloy, and high‐boron high speed steel roll has been manufactured by centrifugal casting method. The microstructures, mechanical properties and wear resistance of centrifugal casting high‐boron high speed steel roll have been investigated by optical microscopy (OM), scanning electron microscopy (SEM), and X‐ray diffraction (XRD) analysis, hardness test, impact test and wear test. The results indicated that the solidification microstructures of high‐boron high speed steel roll consisted of M₂(B,C), (W,Mo)₂(B,C), M₃(B,C), M₂₃(B,C)₆ type borocarbides and martensite, a small amount of retained austenite. Borocarbides were continuously distributed over the grain boundary. After quenching from 1050 °C, local broken network appeared in partial borocarbides, and fine secondary borocarbide precipitated from the matrix. After tempering from 525 °C, the amount of precipitated borocarbide increased significantly. After heat treatment, the hardness of high‐boron high speed steel roll excelled 60 HRC, and its impact toughness excelled 8.0 J/cm². The single groove steel rolling amount of high‐boron high speed steel rolls increases by 500% than that of bainite cast iron roll, when the rolls are used in K₁ mill housing of bar mill.     

Thixotropy of Systems with Shear Thinning and Plastic Flow Behavior

The definition of the thixotropy is a decrease in viscosity with time in shear and a subsequent recovery of viscosity after the shear deformation is removed.We ...     

Effect of Oxide Assisted Metal Nanoparticles on Microstructure and Morphology of Gallium oxide Nanowires

Several researches have been reported about the characteristic of β-Ga2O3 nanowires which was synthesized on nickel oxide particle. But indeed, recent researches about synthesis of β-Ga2O3 nanowires on oxide-assisted transition metal are limited to nickel or cobalt oxide catalyst. In this work, Gallium oxide (β-Ga2O3 ) nanowires were synthesized by a simple thermal evaporation method from gallium powder in the range of 700 - 1000℃ using the iron, nickel, copper, cobalt and zinc oxide as a catalyst, respectively. The β-Ga2O3 nanowires with single crystalline without defects were successfully synthesized at the reaction temperature of 850, 900 and 950℃ in all the catalysts. But optimum experimental condition in synthesis of nanowires varied with the kind of catalyst. As increasing synthesis temperature,the morphology of gallium oxide nanowires changed from nanowires to nanorods, and its diameter increased. From these results, we could be proposed that the growth mechanism of β-Ga2O3 nanowires was changed with synthesis temperature of nanowires. Microstructure and morphology of Synthesized nanowire was characterized by HR-TEM, FE-SEM, EDX and XRD.     

The Influence of Nitrogen and Boron Implant into Silicon Substrate on the Phase and Internal Stress of c-BN Films

Cubic boron nitride(c-BN) film was deposited on a Si (100) substrate by the RF-magnetron sputtering.The mainly problems for fabrication of c-BN films are the low purity and high intrinsic compressive stress. In order to solve the two problems, the c-BN film with the buffer interlayer was deposited on the substrate which had been implanted with nitrogen and/or boron ions. The results show: the implantation of nitrogen ions can obviously increase c-BN content and reduce the internal stress slightly; while the implantation of boron shows no obvious improvement to the content of c-BN, which can reduce the internal stress in the film obviously. In addition, it is suggested that the implantation of nitrogen and boron shows the best result, which not only can increase the content of c-BN, but also reduce the internal stress in the c-BN film obviously.