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相关概念视频

Personal Protective Equipment01:20

Personal Protective Equipment

2.1K
Personal protective equipment (PPE) is unique clothing or equipment worn by an employee to minimize or prevent exposure to infectious agents. PPE creates a barrier between the employee and the infectious materials. PPE must be readily available in the patient care area. PPE includes gloves, gowns and aprons, masks and respirators, goggles, face shields, shoes, and headcovers:
2.1K
PPE Use in Healthcare Settings I: Donning01:22

PPE Use in Healthcare Settings I: Donning

1.6K
Donning PPE must be completed before contact with the patient. This process protects from infectious agents. The sequence and action included in each donning are critical, and the steps must be systematic to avoid exposure to pathogens. The institutional policy also needs to be followed while donning PPE. The pre-donning preparations are gathering equipment, inspecting the PPE equipment for tears, holes, or damage, removing jewelry, removing any garments below the elbows, and tying the hair...
1.6K
PPE Use in Healthcare Settings II: Doffing01:10

PPE Use in Healthcare Settings II: Doffing

1.5K
The sequence of removing or doffing PPE starts with the gloves, as they are the most contaminated. Next is removal of the face shield or goggles, as they would interfere with removing other PPE. Then remove the gown, followed by the mask or respirator. Perform hand hygiene between steps if hands become contaminated and immediately after removing all PPE. Generally, the outside front and sleeves of the isolation gown, the goggles or the mask, the respirator, and the face shield are contaminated.
1.5K
Design Example: Flow Through a Fire Extinguisher01:12

Design Example: Flow Through a Fire Extinguisher

432
A fire extinguisher that uses pressurized water relies on fluid dynamics principles to generate a high-velocity stream capable of suppressing flames. The water is stored at a much higher pressure inside the extinguisher than the surrounding atmosphere. This pressure difference forces the water to flow rapidly when the extinguisher is activated, and the behavior of the water as it exits the nozzle can be understood using fundamental equations of fluid dynamics.
The key to understanding how the...
432
Handwashing II: Pre-procedure and Initial Procedure Steps01:19

Handwashing II: Pre-procedure and Initial Procedure Steps

1.4K
The pre-procedure steps of handwashing include removing jewelry and rolling up sleeves. However, many organizations allow staff to wear wedding rings.
The hand washing procedure itself includes the following steps. First, cover cuts, if any, on hands with a waterproof dressing. Cuts and abrasions can become contaminated with bacteria hindering the ability to clean the area thoroughly. In addition, repeated hand washing can worsen an injury.  The nails must be short and clean, without nail...
1.4K
Hand hygiene01:23

Hand hygiene

5.5K
Asepsis is the practice of preventing or breaking the chain of infection. The nurse employs aseptic techniques to prevent the spread of microorganisms and reduce the risk of diseases. Hand hygiene is the cornerstone of aseptic techniques and is classified into medical and surgical asepsis. Medical asepsis includes hand hygiene and the use of gloves. Surgical asepsis, or the sterile technique, refers to practices that render and keep objects and areas free of microorganisms.
Hand washing...
5.5K

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相关实验视频

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Testing Tactile Masking between the Forearms
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消防手套的尺寸:覆盖范围,实用性和有效性

Hongwei Hsiao1, Rui Li2, Mengying Zhang2

  • 1Texas A&M University, Corpus Christi, Texas, USA.

Applied ergonomics
|November 25, 2025
PubMed
概括
此摘要是机器生成的。

目前的消防手套尺寸 (NFPA) 无法适应超过三分之一的用户. 这项研究完善了尺寸系统,以更好地适应,提高安全性和优化制造商设计.

关键词:
住宿安排 住宿安排集群集群是一个集群集群.适合 适合 适合 适合手 手 手 的 手尺寸调整 尺寸调整 尺寸调整

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Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping

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相关实验视频

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科学领域:

  • 职业安全与健康问题 职业安全与健康问题
  • 人体工程学就是人体工程学.
  • 服装设计 服装设计

背景情况:

  • 国家消防保护协会 (NFPA) 关于消防员手套尺寸的标准最近进行了更新.
  • 然而,由于数据应用和设计翻译的问题,在实现适当的适配和覆盖方面仍然存在重大挑战.

研究的目的:

  • 评估当前NFPA标准对各种消防员群体的适应性.
  • 为了检查消防手套的最佳尺寸分级.
  • 提出一个改进的,更具包容性的手套尺寸计划.

主要方法:

  • 从943名消防员的分层样本中使用了12个手指测量.
  • 采用数据映射,主要组件分析 (PCA) 和聚类来分析手尺寸.
  • 应用后勤回归来确定大小选择的基于概率的边界.

主要成果:

  • 确定35.2%的消防员手不属于现有的7个NFPA强制性的尺寸.
  • 使用PCA和集群开发了一种精细的七大小系统,遵守NFPA大小规范.
  • 建立基于概率的边界,以加强用户在选择合适的手套尺寸方面的指导.

结论:

  • 目前的NFPA手套尺寸标准在适应消防员手尺寸的全谱方面存在局限性.
  • 一个精细的尺寸系统,由全面的手工测量和先进的统计分析提供信息,提供了更好的住宿.
  • 这项研究提供了关键的手尺寸规格,以帮助制造商优化手套设计,生产和库存,最终提高消防员的安全性和舒适性.