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相关概念视频

Integration by Parts: Indefinite Integrals01:26

Integration by Parts: Indefinite Integrals

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Integration by parts is a fundamental technique in calculus for evaluating integrals involving the product of two functions. It is particularly useful when direct integration is not feasible. The method is based on the product rule for differentiation, which states that the derivative of a product equals the derivative of the first function times the second, plus the first function times the derivative of the second. By integrating this identity and rearranging terms, the integration by parts...
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Members Made of Elastoplastic Material01:19

Members Made of Elastoplastic Material

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The behavior of elastoplastic materials under bending stresses, particularly in structural members with rectangular cross-sections, is crucial for predicting material responses and understanding failure modes. Initially, when a bending moment is applied, the stress distribution across the section follows Hooke's Law and is linear and elastic. This distribution means the stress increases from the neutral axis to the maximum at the outer fibers, up to the elastic limit.
As the bending moment...
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Genetic Material01:20

Genetic Material

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Within the human body, a complex and detailed system of trillions of cells works in unison to sustain life. Each cell houses a nucleus, which contains 46 chromosomes divided into 23 pairs. Chromosomes are highly coiled structures made of the genetic material DNA. These chromosomes are essential carriers of genetic information, with half inherited from the mother through her egg and the other half from the father's sperm, combining to create the unique genetic makeup of an individual.
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Integration by Parts: Definite Integrals01:23

Integration by Parts: Definite Integrals

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Definite integrals involving the product of two functions over a fixed interval can be evaluated using integration by parts. This method rewrites the integral as the difference of a product evaluated at the endpoints and a remaining definite integral that is often simpler to compute.A representative example is the definite integral of the inverse tangent function. Since there is no direct integration formula for arctan ⁡x, the integrand is rewritten as a product of arctan⁡ x and the...
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Bending of Members Made of Several Materials01:11

Bending of Members Made of Several Materials

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In analyzing a structural member composed of two different materials with identical cross-sectional areas, it is crucial to understand how their distinct elastic properties affect the member's response under load. The analysis involves assessing stress and strain distributions using the transformed section concept, which accounts for variations in material properties.
Hooke's Law determines stress in each material, stating that stress is proportional to strain but varies due to each material's...
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Bending of Material: Problem Solving01:09

Bending of Material: Problem Solving

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In this lesson, determine the ratio of the maximum bending moments applied to two metal pipes, given that both pipes can withstand a maximum stress of 100 MPa. Both pipes have an outer radius of 1.8 cm. Pipe A has an inner radius of 1.5 cm, and Pipe B has an inner radius of 1 cm. The ratio of the maximum bending moment applied to two metallic pipes, each with a different inner and outer radius, is determined by considering their dimensions. The inner radius of the first pipe is 1.5 cm, and for...
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相关实验视频

Updated: Feb 6, 2026

Rapid Manufacturing of Thin Soft Pneumatic Actuators and Robots
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采用单一材料的光学波导集成的单一印刷的气动自受感执行器.

Shaowu Tang1,2,3, Xiaohuang Liu2, Zhonggui Fang4

  • 1Sino-German College of Intelligent Manufacturing, Shenzhen Technology University, Pingshan, China.

Soft robotics
|February 4, 2026
PubMed
概括

研究人员使用3D打印开发了一种新的制造方法,用于使用3D打印的气动自感受驱动器 (MPPPA). 这项创新集成了软机器人中的驱动和传感,以提高可靠性.

关键词:
集成的执行和传感器.光学波导是一种光学波导.自己的感知驱动器.单一材料打印印刷的一种方式.软机器人软机器人 软机器人

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科学领域:

  • 软机器人软机器人 软机器人
  • 生物仿真工程 生物仿真工程
  • 材料科学是一种材料科学.

背景情况:

  • 肌肉组织通过纤维,子和连接组织整合了力量产生和自身感知反.
  • 现有的软机器人执行器往往缺乏集成的传感能力,限制了它们的功能复杂性.
  • 集成执行和传感的单体制造仍然是软机器人技术的一个重大挑战.

研究的目的:

  • 开发一种单一材料制造方法,用于单立体气动自感受式执行器 (MPPPA).
  • 利用热塑性聚氨 (TPU) 来创建集成的,可靠的软机器人组件.
  • 为了证明制造的MPPPA的启动和自感传感能力.

主要方法:

  • 使用化沉积建模 (FDM) 用热塑性聚氨 (TPU) 进行3D打印.
  • 开发了一种连续打印工艺,以创建密闭室和嵌入式光学波导.
  • 优化打印参数,以确保室内完整性和波导稳定性.

主要成果:

  • 实现了高度密集,密闭的室内,泄漏率最小 (200kPa时0.85%).
  • 从光学波导中证明了强大的自感受,在5000个曲周期中漂移<0.5%.
  • MPPPAs表现出可靠的启动传感性能,传感误差低于1.82%.

结论:

  • 拟议的基于FDM的单立体打印方法可以简化MPPPA的制造.
  • 开发的执行器在执行和自感传感方面都表现出高可靠性和准确性.
  • 这一进步有助于开发更复杂,更可靠的软机器人系统.