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相关概念视频

Virtual Work for a System of Connected Rigid Bodies01:06

Virtual Work for a System of Connected Rigid Bodies

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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.
Next,...
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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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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...
3.5K
Principle of Virtual Work: Problem Solving01:13

Principle of Virtual Work: Problem Solving

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The principle of virtual work is an essential concept in the field of mechanics and engineering. This is used to solve problems related to the equilibrium of a structure or system. It is based on the assumption that if a system is in equilibrium, the work done by all the forces during a virtual displacement is zero. This principle is applied by considering virtual displacements of the system and the corresponding work done by internal and external forces.
To apply the principle of virtual work,...
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Virtual Work01:20

Virtual Work

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The principle of virtual work states that if a body is in static and dynamic equilibrium, then the sum of all the virtual work done by all external forces and couple moments for any given virtual displacement must be zero.
In static equilibrium, a body can experience an imaginary or virtual movement, such as displacement or rotation. The virtual work done by a force is equal to the dot product of force and virtual displacement in the direction of the force. When it comes to virtually rotating a...
775
Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

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Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
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团队门户:通过共享和操纵并行视图探索虚拟现实协作.

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    此摘要是机器生成的。

    虚拟现实 (VR) 协作通过交互式共享视图来改善. TeamPortal及其变体提高了虚拟环境中的任务效率和社交存在.

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    科学领域:

    • 人与计算机的交互
    • 虚拟现实 虚拟现实 虚拟现实
    • 协作系统 协作系统 协作系统

    背景情况:

    • 虚拟现实 (VR) 能够实现独特的协作体验.
    • 在协作虚拟环境 (CVEs) 中的并行视图对于项目转移和操作至关重要.
    • 分享和操纵合作伙伴的观点可以提高用户的视角,目标识别和行动意识.

    研究的目的:

    • 调查互动,共享视角在VR协作中的好处.
    • 评估提议的TeamPortal系统及其变体的有效性.
    • 为未来的虚拟现实协作系统推导设计影响.

    主要方法:

    • 进行了两项与72名参与者 (36对) 的用户研究.
    • 研究1将TeamPortal和ShaView与协作搜索和操纵任务的基线进行比较.
    • 第二项研究评估了三种TeamPortal变体:TeamPortal+,SnapTeamPortal+和DropTeamPortal+. 这三种变体的使用情况是如下:

    主要成果:

    • TeamPortal显著减少了运动,提高了协作效率和复杂任务中的社会存在.
    • SnapTeamPortal+和DropTeamPortal+提高了任务效率和采用意愿.
    • SnapTeamPortal+导致了减少共同存在的情况.

    结论:

    • 交互式共享视角,如TeamPortal提供的视角,增强了VR协作.
    • 特定的界面设计 (SnapTeamPortal+,DropTeamPortal+) 可以进一步优化任务效率和用户采用.
    • 设计含义被建议用于指导下一代虚拟现实协作系统的开发.