関連する実験動画

Updated: Feb 12, 2026

Processing of Bulk Nanocrystalline Metals at the US Army Research Laboratory
08:58

Processing of Bulk Nanocrystalline Metals at the US Army Research Laboratory

Published on: March 7, 2018

9.8K

小分子から組み立てられた自由状態のナノ結晶材料

Tamar Wolf, Angelica Niazov-Elkan, XiaoMeng Sui

    Journal of the American Chemical Society
    |March 29, 2018
    PubMed
    まとめ

    研究者は有機ナノ結晶 (PDI) から大きく安定したフィルムを作成しました. これらの頑丈な材料は非線形光学特性を持ち,超濾過に使用され,プラスチックの代替品となります.

    さらに関連する動画

    From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding06:44

    From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

    Published on: March 24, 2018

    69.7K
    Characterization of Ultra-fine Grained and Nanocrystalline Materials Using Transmission Kikuchi Diffraction09:13

    Characterization of Ultra-fine Grained and Nanocrystalline Materials Using Transmission Kikuchi Diffraction

    Published on: April 1, 2017

    14.2K

    関連する概念動画

    Standing Waves01:17

    Standing Waves

    Sometimes waves do not seem to move; rather, they just vibrate in place. Unmoving waves can be seen on the surface of a glass of milk kept in a refrigerator, which is one example of standing waves. Vibrations from the refrigerator motor create waves on the milk that oscillate up and down but do not seem to move across the surface. These waves are formed or created by the superposition of two or more identical moving waves in opposite directions. The waves move through each other, with their...
    5.5K
    Modes of Standing Waves - I01:03

    Modes of Standing Waves - I

    A close look at earthquakes provides evidence for the conditions appropriate for resonance, standing waves, and constructive and destructive interference. A building may vibrate for several seconds with a driving frequency matching the building's natural frequency of vibration; this produces a resonance that results in one building collapsing while the neighboring buildings do not. Often, buildings of a certain height are devastated, while other taller buildings remain intact. This...
    4.1K
    Modes of Standing Waves: II01:04

    Modes of Standing Waves: II

    The starting point for expressing the modes of standing waves is understanding the boundary conditions that the waves must follow. The boundary conditions are derived from the physical understanding of how the standing waves are sustained, that is, how the vibrating particles of the medium behave at the boundaries imposed on them.
    For a tube open at one end and closed at the other filled with air, the modes are such that there is always an antinode at the open end and a node at the closed end....
    1.8K
    Standing Waves in a Cavity01:28

    Standing Waves in a Cavity

    A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
    1.5K
    Standing Electromagnetic Waves01:15

    Standing Electromagnetic Waves

    Electromagnetic waves can be reflected; the surface of a conductor or a dielectric can act as a reflector. As electric and magnetic fields obey the superposition principle, so do electromagnetic waves. The superposition of an incident wave and a reflected electromagnetic wave produces a standing wave analogous to the standing waves created on a stretched string.
    Suppose a sheet of a perfect conductor is placed in the yz-plane, and a linearly polarized electromagnetic wave traveling in the...
    2.3K
    Protein Complex Assembly02:41

    Protein Complex Assembly

    Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types.  Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
    Many viruses self-assemble into a fully functional unit using the infected host cell to...
    16.9K