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相关概念视频

Masking and Demasking Agents01:19

Masking and Demasking Agents

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EDTA titrations may necessitate masking and demasking agents to temporarily protect a particular metal ion in a mixture from the EDTA reaction. These agents facilitate the sequential analysis of the metal ions by forming stable complexes with some—but not all—metal ions during certain steps.
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on...
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Extraction: Advanced Methods00:56

Extraction: Advanced Methods

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Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
482
Oxygen Delivering System I: Nasal Cannula and Face Mask01:26

Oxygen Delivering System I: Nasal Cannula and Face Mask

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The human body requires oxygen to function, and when the natural process of respiration is hindered, external devices, including the following, are needed to help deliver this vital gas.
Nasal Cannula
A nasal cannula is a lightweight tube split at one end into two prongs and placed in the nostrils. It is typically used to deliver low to medium levels of oxygen.
Suggested flow rate: The suggested flow rate for a nasal cannula typically ranges between 1 and 6 L/min.
Oxygen percentage setting:...
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PPE Use in Healthcare Settings II: Doffing01:10

PPE Use in Healthcare Settings II: Doffing

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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.
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Suctioning the Nasopharyngeal Airway01:29

Suctioning the Nasopharyngeal Airway

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Nasopharyngeal suctioning is a procedure to remove secretions from the upper part of the respiratory tract that the patient cannot clear independently. It helps maintain airway patency and prevents complications such as aspiration pneumonia.
Equipment Required
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GANMasker:一个双阶段的生成对抗网络,用于高质量的面具清除.

Mohamed Mahmoud1,2, Hyun-Soo Kang1

  • 1Department of Information and Communication Engineering, School of Electrical and Computer Engineering, Chungbuk National University, Cheongju-si 28644, Republic of Korea.

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概括
此摘要是机器生成的。

这项研究引入了一种新的两阶段深度学习网络,用于切实地去除面罩. 该方法有效地重建复杂的面部特征,在图像质量指标方面表现优于现有技术.

关键词:
在 COVID-19 疫情中,一个CelebA数据集.注意力机制注意力机制自动编码器自动编码器面膜去除 面膜去除脸部脱口罩的方法生成性的对抗性网络 (GANs)在painting中的图像.

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科学领域:

  • 计算机视觉 计算机视觉
  • 人工智能的人工智能
  • 图像处理 图像处理

背景情况:

  • 深度学习在图像绘制方面表现出色,但去除大型复杂的面罩仍然具有挑战性.
  • 随着COVID-19的流行,人们对面具去除技术的兴趣越来越大.
  • 有限的配对蒙面/不蒙面面部数据集阻碍了开发.

研究的目的:

  • 开发一个强大的深度学习模型,以准确地去除面罩.
  • 为了应对复杂的面部特征被掩盖的面具重建的挑战.
  • 为了克服配对蒙面和没有蒙面面部图像数据集的稀缺性.

主要方法:

  • 一个双阶段网络,结合了面具细分的自动编码器和带有注意力的GAN,以及用于重建的面具-无面具区域融合 (MURF).
  • 关于CelebA数据集的培训,CelebA数据集是一个大型的公开集合,包含配对的蒙面和没有蒙面的面孔.
  • 使用多尺度面具面部进行评估,以评估各种面具尺寸和复杂度的性能.

主要成果:

  • 与最先进的技术相比,拟议的方法显著改善了面罩的去除.
  • 达到30.96dB的峰值信号噪声比 (PSNR),比第二最佳方法提高4.18dB.
  • 在结构相似性指数测量 (SSIM) 中增加了1%,达到0.95,表明高视觉保真度.

结论:

  • 这种新的两级网络有效地去除了面罩,产生了真实而准确的无面罩面孔.
  • 在GAN中的注意力和MURF机制加强了对蒙面地区的重视,以便进行优质的重建.
  • 该方法在揭露面部方面提供了显著的进步,特别是在复杂和大型面具方面.