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関連する概念動画

Transformers01:26

Transformers

1.7K
A device that transforms voltages from one value to another using induction is called a transformer. A transformer consists of two separate coils, or windings, wrapped around the same soft iron core. However, they are electrically insulated from each other.
The iron core has a substantial relative permeability. Therefore, the magnetic field lines generated due to the current in one winding are almost entirely confined within the core, such that the same magnetic flux permeates each turn of both...
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Types Of Transformers01:16

Types Of Transformers

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Transformers can provide desired voltages to a circuit by modifying the number of turns in the secondary windings.
If the ratio of the number of turns in the secondary winding to that of the primary winding is greater than one, then the transformer is said to be a step-up transformer. In a step-up transformer, the voltage at the secondary winding is greater than the voltage applied at the primary winding.
However, if this ratio is less than one, the transformer is said to be a step-down...
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Transmission Electron Microscopy01:15

Transmission Electron Microscopy

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In 1931, physicist Ernst Ruska—building on the idea that magnetic fields can direct an electron beam just as lenses can direct a beam of light in an optical microscope—developed the first prototype of the electron microscope. This development led to the development of the field of electron microscopy. In the transmission electron microscope (TEM), electrons are produced by a hot tungsten element and accelerated by a potential difference in an electron gun, which gives them up to 400...
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Nuclear Transmutation03:20

Nuclear Transmutation

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Nuclear transmutation is the conversion of one nuclide into another. It can occur by the radioactive decay of a nucleus, or the reaction of a nucleus with another particle. The first manmade nucleus was produced in Ernest Rutherford’s laboratory in 1919 by a transmutation reaction, the bombardment of one type of nuclei with other nuclei or with neutrons. Rutherford bombarded nitrogen-14 atoms with high-speed α particles from a natural radioactive isotope of radium and observed...
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Transformers in Distribution System01:27

Transformers in Distribution System

470
Transformers in distribution systems can be broadly categorized into distribution substation transformers and other distribution transformers. They are crucial for stepping down high transmission voltages to levels suitable for distribution and end-user applications.
Distribution substation transformers come in various ratings and typically use mineral oil for insulation and cooling. To prevent moisture and air from entering the oil, some transformers use an inert gas like nitrogen to fill the...
470
Energy Losses in Transformers01:21

Energy Losses in Transformers

1.3K
In an ideal transformer, it is assumed that there are no energy losses, and, hence, all the power at the primary winding is transferred to the secondary winding. However, in reality,  the transformers always have some energy losses, and, hence, the output power obtained at the secondary winding is less than the input power at the primary winding due to energy losses.
There are four main reasons for energy losses in transformers.
The first cause can be  the high resistance of the...
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Microscale Vortex-assisted Electroporator for Sequential Molecular Delivery
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分子科学におけるトランスフォーマー技術

Jian Jiang1,2, Lu Ke1, Long Chen1

  • 1Research Center of Nonlinear Science, School of Mathematical and Physical Sciences, Wuhan Textile University, Wuhan, China.

Wiley interdisciplinary reviews. Computational molecular science
|December 26, 2025
PubMed
まとめ
この要約は機械生成です。

自己注意メカニズムを利用したトランスフォーマーモデルは、分子科学における強力なディープラーニングツールです。本レビューでは、BERTやGPTなどのトランスフォーマーアルゴリズムと、複雑な分子データを処理するための技術的応用について詳述します。

キーワード:
データサイエンス > 人工知能/機械学習データサイエンス > ケモインフォマティクス生物学化学機械学習分子科学トランスフォーマー技術

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関連する実験動画

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Published on: August 7, 2014

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Magnetic Tweezers for the Measurement of Twist and Torque
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High-Speed Magnetic Tweezers for Nanomechanical Measurements on Force-Sensitive Elements
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科学分野:

  • 分子科学
  • 人工知能
  • ディープラーニング

背景:

  • 自己注意を備えたトランスフォーマーアーキテクチャは、逐次データ処理に優れています。
  • トランスフォーマーベースのディープラーニングモデルは、分子科学においてますます重要になっています。
  • これらのモデルは、複雑なデータにおける精巧な階層的依存関係を捉えます。

研究 の 目的:

  • 分子科学におけるトランスフォーマーベースの機械学習アルゴリズムの技術的な詳細な調査を提供すること。
  • 分子データのための様々なトランスフォーマーモデルの内部構造と有効性を調べること。
  • この領域におけるトランスフォーマーの新たなトレンドと学際的な研究の可能性を議論すること。

主な方法:

  • GPT、BART、BERT、Graph Transformer、Transformer-XL、T5、ViT、DETR、Conformer、CLIP、Sparse Transformers、Mobile/Efficient Transformersを含むトランスフォーマーアーキテクチャのレビューと分析。
  • これらのモデルの技術的側面とアルゴリズムの革新に焦点を当てる。
  • アーキテクチャ上の特徴が複雑な分子データを処理することをどのように可能にするかを検討する。

主要な成果:

  • トランスフォーマーは、自己注意により、逐次的かつ複雑な分子データを効果的に処理します。
  • BERT、GPT、Graph Transformerなどの特定のモデルは、大きな可能性を示しています。
  • アーキテクチャの革新は、分子応用におけるパフォーマンス向上に直接貢献します。

結論:

  • トランスフォーマーベースの機械学習技術は、分子科学の進歩の基礎となります。
  • これらの技術的な側面を理解することは、将来の学際的な研究にとって重要です。
  • このレビューは、分子領域におけるトランスフォーマーの応用の包括的な概要を提供します。