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相关概念视频

Collisions in Multiple Dimensions: Introduction01:05

Collisions in Multiple Dimensions: Introduction

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It is far more common for collisions to occur in two dimensions; that is, the initial velocity vectors are neither parallel nor antiparallel to each other. Let's see what complications arise from this. The first idea is that momentum is a vector. Like all vectors, it can be expressed as a sum of perpendicular components (usually, though not always, an x-component and a y-component, and a z-component if necessary). Thus, when the statement of conservation of momentum is written for a...
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The Representativeness Heuristic02:13

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The representative heuristic describes a biased way of thinking, in which you unintentionally stereotype someone or something. For example, you may assume that your professors spend their free time reading books and engaging in intellectual conversation, because the idea of them spending their time playing volleyball or visiting an amusement park does not fit in with your stereotypes of professors.
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Virtual Work for a System of Connected Rigid Bodies01:06

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Virtual work is a powerful method used to solve problems involving several connected rigid bodies. When the system is in equilibrium, virtual work is zero. This allows the calculation of the resulting forces when a system undergoes a virtual displacement. When attempting to analyze such a system, first, use a free-body diagram, where an independent coordinate represents the configuration of the links, and mark its deflected position resulting from the positive virtual displacement.
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Collisions in Multiple Dimensions: Problem Solving01:06

Collisions in Multiple Dimensions: Problem Solving

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In multiple dimensions, the conservation of momentum applies in each direction independently. Hence, to solve collisions in multiple dimensions, we should write down the momentum conservation in each direction separately. To help understand collisions in multiple dimensions, consider an example.
A small car of mass 1,200 kg traveling east at 60 km/h collides at an intersection with a truck of mass 3,000 kg traveling due north at 40 km/h. The two vehicles are locked together. What is the...
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Stereotype Content Model02:16

Stereotype Content Model

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The Stereotype Content Model (SCM) was first proposed by Susan Fiske and her colleagues (Fiske, Cuddy, Glick & Xu, 2002; see also Fiske, 2012 and Fiske, 2017). The SCM specifies that when someone encounters a new group, they will stereotype them based on two metrics: warmth—or that group’s perceived intent, and how likely they are to provide help or inflict harm—and competence—or their ability to carry out that objective. Depending on the warmth-competence...
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相关实验视频

Updated: Jun 14, 2025

Evaluating Usability Aspects of a Mixed Reality Solution for Immersive Analytics in Industry 4.0 Scenarios
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混合现实协作:专家表示如何塑造用户体验

Bernardo Marques, Samuel Silva, Carlos Ferreira

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    此摘要是机器生成的。

    本研究探讨了混合现实 (MR) 中不同远程专家表示如何影响协作. 现实的化身和实时视频流通常会增强学习和信任,而不是抽象的或没有表示.

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    科学领域:

    • 人与计算机的交互
    • 协作技术的合作技术
    • 虚拟现实和增强现实

    背景情况:

    • 远程辅助在现代工作场所至关重要,混合现实 (MR) 成为一个关键技术.
    • 在MR环境中远程专家的有效代表对于成功的知识共享和协作至关重要.
    • 了解各种视觉表示对用户体验的影响对于优化MR辅助协作至关重要.

    研究的目的:

    • 评估混合现实 (MR) 中远程专家的不同视觉表示如何影响协作动态.
    • 确定哪种类型的代表最能增强沟通,信任和感知专业知识.
    • 确定最佳策略来代表MR的远程专家,以改善学习和协作.

    主要方法:

    • 一项涉及57名参与者的研究进行了评估在六个不同的远程专家代表条件下的合作.
    • 条件包括:没有视觉表示,表情符号,卡通化身,机器人化身,现实化身和现场视频流.
    • 参与者的协作经验被评估在各种维度,以衡量每个代表的有效性.

    主要成果:

    • 现实化的化身和实时视频流通常会导致更好的协作结果,而不是抽象的表示或没有视觉反.
    • 该研究在测试条件下发现了沟通效率,信任和感知专业知识的显著差异.
    • 表情符号和基本的化身表示在增强协作体验方面显示出有限的好处.

    结论:

    • 在混合现实中选择远程专家代表的选择显著影响了协作质量.
    • 现实的视觉表现,如化身或实时视频,在培养信任和改善远程辅助场景中的学习方面更有效.
    • 未来的MR系统设计应优先考虑远程专家的现实和高保真表示,以最大限度地发挥协作潜力.