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関連する概念動画

Osmoregulation in Fishes02:32

Osmoregulation in Fishes

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When cells are placed in a hypotonic (low-salt) fluid, they can swell and burst. Meanwhile, cells in a hypertonic solution—with a higher salt concentration—can shrivel and die. How do fish cells avoid these gruesome fates in hypotonic freshwater or hypertonic seawater environments?
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Quantifying Work02:30

Quantifying Work

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As a system undergoes a change, its internal energy can change, and energy can be transferred from the system to the surroundings, or from the surroundings to the system.
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Sound Intensity00:58

Sound Intensity

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The loudness of a sound source is related to how energetically the source is vibrating, consequently making the molecules of the propagation medium vibrate. To measure the loudness of a source, the physical quantity of interest is the intensity. This is defined as the energy emitted per unit of time per unit of area perpendicular to the sound wave's propagation direction. Since the total energy is greater if the source vibrates for a longer duration and over a larger area, dividing the...
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Sound Intensity Level00:53

Sound Intensity Level

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Humans perceive sound by hearing. The human ear helps sound waves reach the brain, which then interprets the waves and creates the perception of hearing. The loudness of the environment in which a person is located determines whether they can distinguish between different sound sources.
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and...
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Intensity Of Electromagnetic Waves01:22

Intensity Of Electromagnetic Waves

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The energy transport per unit area per unit time, or the Poynting vector, gives the energy flux of an electromagnetic wave at any specific time. For a plane electromagnetic wave with E0 and B0 as the peak electric and magnetic fields and traveling along the x-axis, the time-varying energy flux can be given by the following equation:
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Intensity and Pressure of Sound Waves01:05

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The intensity of sound waves can be related to displacement and pressure amplitudes by using their wave expressions and the definition of intensity. The critical step to achieve this is to write the power delivered by the particles on the wave as the product of force and velocity and simplify the force per unit area as the pressure. The velocity of the medium's particles can be derived from the displacement.
Unlike the time average of a sinusoidal term, which is zero since it is positive...
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関連する実験動画

Updated: Feb 14, 2026

Assessing Mineral Availability in Fish Feeds using Complementary Methods Demonstrated with the Example of Zinc in Atlantic Salmon
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魚の餌の強度を定量化するための軽量なYOLO-PEGAベースの方法

Xinyu Ai1,2, Shengmao Zhang1, Shenglong Yang1

  • 1Key Laboratory of Fisheries Remote Sensing, Ministry of Agriculture and Rural Affairs, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China.

Animals : an open access journal from MDPI
|February 13, 2026
PubMed
まとめ

この研究では,水噴出を分析することによって,魚の餌付け行動を監視するための新しいAIモデルを導入しています. この技術は,給餌スケジュールを最適化し,廃棄物を削減し,水産物の持続可能性を改善します.

キーワード:
YOLO11は,YOLO11に登録しているユーザーです.注意力メカニズム 注意力メカニズム給餌の強度について大きな黄色のクロアカーです.

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Development of New Methods for Quantifying Fish Density Using Underwater Stereo-video Tools
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科学分野:

  • アクアカルチャー技術とは
  • 農業におけるコンピュータビジョン
  • 動物の行動分析とは,動物の行動分析です.

背景:

  • 水産養殖における手動または固定スケジュールによる魚の餌付けは,しばしば過剰な餌付けにつながり,飼料の浪費と水質汚染を引き起こします.
  • ジャンプや競争のような魚の餌の行動は,飢餓レベルを示すことができるスプラッシュを生み出します.

研究 の 目的:

  • コンピュータビジョンを使用して魚の餌の強さを監視するための自動化されたシステムを開発する.
  • 水産養殖事業の効率と環境の持続可能性を改善する.

主な方法:

  • 訓練のためのフレームレベルのスプラッシュで注釈されたデータセットを構築しました.
  • 改良されたYOLO11モデル (YOLO11-PEGA) を開発し,小型スプラッシュ認識と効率的なダウンサンプリングを強化しました.
  • モデルアーキテクチャにEGMAとADOwnオペレーターを組み込みました.

主要な成果:

  • YOLO11-PEGAモデルは,検証セットで高精度 (0.86) とリコール (0.80) を達成した.
  • 達成されたmAP@0.5 > 0.80とmAP@0.5-0.95 > 0.30.
  • モデルパラメータ数はベースラインと比較して72.3%減少し,効率の向上を示しています.

結論:

  • 提案されたYOLO11-PEGAモデルは,複雑な環境で安定した検出性能を提供します.
  • アクアカルチャーにおける給餌値,タイミング,量を最適化するための貴重なデータを提供します.
  • 自動化されたモニタリングを通じて,より効率的で持続可能な水産養殖の実践をサポートします.