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関連する概念動画

The Wave Nature of Light02:12

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The nature of light has been a subject of inquiry since antiquity. In the seventeenth century, Isaac Newton performed experiments with lenses and prisms and was able to demonstrate that white light consists of the individual colors of the rainbow combined together. Newton explained his optics findings in terms of a "corpuscular" view of light, in which light was composed of streams of extremely tiny particles traveling at high speeds according to Newton's laws of motion.
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Continuing care describes the variety of health, personal, and social services provided over a prolonged period. The need for continuing care is increasing because people are living longer. Many people do not have families or others to care for them. Continuing care is mainly for patients who are disabled, functionally dependent, or suffering from a terminal disease. It is available within institutional settings or in homes. Examples include nursing centers or facilities, assisted living,...
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A function is continuous at a point a if three conditions are met: the function is defined at a, the limit of the function as x approaches a exists, and this limit equals the function’s value. Mathematically, this is written asThis definition ensures the graph of the function does not exhibit any breaks, holes, or jumps at that point. Discontinuities occur when any of these conditions fail. A removable discontinuity exists when the two-sided limit exists but the function is either...
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The continuity equation asserts that the mass flow rate must remain constant for a steady flow of an incompressible fluid within a confined system. This principle applies to systems where fluid passes through varying cross-sectional areas, such as nozzles, syringes, and pipes.
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The total amount of current flowing per unit cross-sectional area is called the current density. Hence, the current passing through a cross-sectional area can be written as the surface integral of the current density.
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Fluid motion is represented by either velocity vectors or streamlines. The volume of a fluid flowing past a given location through an area during a period of time is called the flow rate Q, or more precisely, the volume flow rate. Flow rate and velocity are related—for instance, a river has a greater flow rate if the velocity of the water in it is greater. However, the flow rate also depends on the size and shape of the river. The relationship between flow rate (Q) and average speed (v)...
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連続波室温ダイアモンドマザー

Jonathan D Breeze1,2, Enrico Salvadori3,4,5, Juna Sathian1

  • 1Department of Materials, Imperial College London, Exhibition Road, London SW7 2AZ, UK.

Nature
|March 23, 2018
PubMed
まとめ
この要約は機械生成です。

研究者はダイアモンドを使って 連続波の室温マザーを開発しました この突破は以前のマザーに 限られた能力を克服し 医療やセンシング,量子技術のための 新しいマイクロ波装置を可能にしました

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科学分野:

  • 量子光学と凝縮物質物理学
  • 固体装置のエンジニアリング

背景:

  • レーザーに匹敵する マイクロ波器は 従来 極度の冷却や高真空状態が必要でした
  • 有機分子を用いた既存の室温マザー研究は 材料の限界に直面し,継続的な動作を妨げています.
  • ダイヤモンドの窒素空隙 (NV) センターは,量子応用のための有望な固体欠陥です.

研究 の 目的:

  • 連続波の室温マザー振動器を デモンストレーションする
  • 固体マザー設計の限界を克服し,特に有機材料を使用する.
  • ダイヤモンドベースのマザーの実用的な応用の可能性を探求する.

主な方法:

  • ダイアモンドの光学的にポンプされた窒素空白 (NV) 欠陥センター.
  • NVセンターのスピン特性を利用して マザー作用を実現する.
  • 室温での連続波マザー振動器の設計と操作

主要な成果:

  • 室温マザー振動器の実証実験が成功しました
  • マザーは,光学的にポンプされた NV 欠陥センターを使用しています.
  • このシステムは,以前の有機ベースの室温マザーのパルス操作の制限を克服します.

結論:

  • 室温の固体マザーには ダイヤモンドのような無機材料が使えます
  • ダイアモンドの光学的にポンプされたNVセンターは,マザーを継続的に操作するための実行可能なプラットフォームを提供します.
  • この技術により 次世代のマイクロ波装置が 医療,セキュリティ,センサー,量子情報処理に 活用できるようになります