相关实验视频

Updated: Jan 25, 2026

A Multi-hole Cryovial Eliminates Freezing Artifacts when Muscle Tissues are Directly Immersed in Liquid Nitrogen
06:42

A Multi-hole Cryovial Eliminates Freezing Artifacts when Muscle Tissues are Directly Immersed in Liquid Nitrogen

Published on: April 6, 2017

12.0K

多通道电磁干扰消除无屏蔽MRI使用零操作

Jiaqi Wang, Huifang Wang, Linfang Xiao

    IEEE transactions on bio-medical engineering
    |January 23, 2026
    PubMed
    概括

    一种新的方法,MEENO,有效地消除了无射频 (RF) 无屏蔽磁共振成像 (MRI) 中的电磁干扰 (EMI). 这种方法可通过更少的传感器强有力的去除EMI工件,提高MRI可访问性和成本效益.

    更多相关视频

    High-precision Electromagnetic Flowmeter with Empty Pipe Detection via Complex Programmable Logic Device-based Waveform Recognition05:11

    High-precision Electromagnetic Flowmeter with Empty Pipe Detection via Complex Programmable Logic Device-based Waveform Recognition

    Published on: June 27, 2025

    678
    Optogenetic Functional MRI06:06

    Optogenetic Functional MRI

    Published on: April 19, 2016

    15.4K

    相关概念视频

    The Electromagnetic Spectrum02:37

    The Electromagnetic Spectrum

    The electromagnetic spectrum consists of all the types of electromagnetic radiation arranged according to their frequency and wavelength. Each of the various colors of visible light has specific frequencies and wavelengths associated with them, and you can see that visible light makes up only a small portion of the electromagnetic spectrum. Because the technologies developed to work in various parts of the electromagnetic spectrum are different, for reasons of convenience and historical...
    64.9K
    The Electromagnetic Spectrum01:24

    The Electromagnetic Spectrum

    Electromagnetic waves are categorized according to their wavelengths and frequencies, giving the electromagnetic spectrum. These waves are classified as radio, infrared, ultraviolet, etc. Radio waves refer to electromagnetic radiation with wavelengths ranging from millimeters to kilometers. Radio waves are commonly used for audio communications (i.e., radios) and typically result from an alternating current in the wires of a broadcast antenna. They cover a broad wavelength range and are used...
    33.4K
    Interference and Diffraction02:18

    Interference and Diffraction

    Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
    51.9K
    RNA Interference01:23

    RNA Interference

    RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
    This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
    27.9K
    Electromagnetic Waves01:30

    Electromagnetic Waves

    James Clerk Maxwell formulated a single theory combining all the electric and magnetic effects scientists knew during that time, calling the phenomena his theory predicted “Electromagnetic waves”. He brought together all the work that had been done by brilliant physicists such as Oersted, Coulomb, Gauss, and Faraday and added his own insights to develop the overarching theory of electromagnetism. Maxwell’s equations, combined with the Lorentz force law, encompass all the laws...
    11.2K
    Electromagnetic Fields01:30

    Electromagnetic Fields

    Electric fields generated by static charges, often referred to as electrostatic fields, are characteristically different from electric fields created by time-varying magnetic fields. While the former is a conservative field, implying that no net work is done on a test charge if it goes around in a complete loop in the field, the latter is, by definition, not a conservative field; net work is done, and it is proportional to the rate of change of magnetic flux.
    However, the observation of...
    2.7K