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相关概念视频

Ultrasonography01:17

Ultrasonography

5.8K
Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called...
5.8K
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

296
Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy  (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
296

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Ultrasound-Based Wearable for Older Chronic Back Pain Patients: A Requirement Analysis of a User Interface for Biofeedback.

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A roadmap for next-generation nanomotors.

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A New Versatile System for 3D Steered LIFU Based on 2D Matrix Arrays.

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Chlorinated VSLSs Surpass HCFCs in CFC-11-Equivalent Emissions for Ozone Layer Depletion in China.

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Author Correction: Charge transfer in triphenylamine-tetrazine covalent organic frameworks for solar-driven hydrogen peroxide production.

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Vegetation browning patterns under compound soil and atmospheric dryness in northern permafrost ecosystems.

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Voltage imaging of CA1 pyramidal cells and SST+ interneurons reveals stability and plasticity mechanisms of spatial firing.

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相关实验视频

Updated: Sep 9, 2025

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
05:57

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

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用于超声波的全光控制阶段阵列

Rahul Goyal1,2, Oscar Demeulenaere1,2, Marc Fournelle3

  • 1Max Planck Institute for Medical Research, Heidelberg, Germany.

Nature communications
|August 29, 2025
PubMed
概括
此摘要是机器生成的。

这项研究引入了一种新的可扩展架构,用于使用光响应相位变换器的相位阵列. 这项创新使得高强度复杂的超声波场能够用于先进的治疗和工程应用.

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Evaluating Targeting Accuracy in the Focal Plane for an Ultrasound-guided High-intensity Focused Ultrasound Phased-array System
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Evaluating Targeting Accuracy in the Focal Plane for an Ultrasound-guided High-intensity Focused Ultrasound Phased-array System

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Controllable Nucleation of Cavitation from Plasmonic Gold Nanoparticles for Enhancing High Intensity Focused Ultrasound Applications
08:19

Controllable Nucleation of Cavitation from Plasmonic Gold Nanoparticles for Enhancing High Intensity Focused Ultrasound Applications

Published on: October 5, 2018

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相关实验视频

Last Updated: Sep 9, 2025

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
05:57

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

8.1K
Evaluating Targeting Accuracy in the Focal Plane for an Ultrasound-guided High-intensity Focused Ultrasound Phased-array System
08:08

Evaluating Targeting Accuracy in the Focal Plane for an Ultrasound-guided High-intensity Focused Ultrasound Phased-array System

Published on: March 6, 2019

5.3K
Controllable Nucleation of Cavitation from Plasmonic Gold Nanoparticles for Enhancing High Intensity Focused Ultrasound Applications
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Controllable Nucleation of Cavitation from Plasmonic Gold Nanoparticles for Enhancing High Intensity Focused Ultrasound Applications

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科学领域:

  • 声学和超声学
  • 生物医学工程
  • 材料科学

背景情况:

  • 超声波领域的动态塑造对于治疗超声波,粒子操纵和组织工程至关重要.
  • 现有的分相阵列在驱动这些先进应用所需的更高强度方面面临限制,限制了阵列大小和场域复杂性.

研究的目的:

  • 引入可扩展的架构来驱动使用单一电源和光响应模拟相变器的分相阵列.
  • 克服传统独立通道在分阶段阵列中的限制.

主要方法:

  • 开发了一种使用光响应模拟相变器的新型架构.
  • 采用单一的电源来驱动分相阵列,简化电气要求.
  • 基于光强度的±π间的连续相位移控制.

主要成果:

  • 实现了动态的多焦超声波束.
  • 展示了快速光束转向能力.
  • 产生空间复杂的光束,包括声波,具有高级阶段控制.

结论:

  • 拟议的架构提供了一个简单的模拟设计,用于高级阶段控制.
  • 这种方法有助于开发非常大的传感器阵列.
  • 能够为新兴应用产生高强度,空间复杂的超声波场.