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関連する概念動画

DC Battery01:21

DC Battery

A conductor needs to be a component of a path that creates a closed loop or full circuit to have a continuous current flowing through it. A current starts to flow if an electric field is created inside an isolated conductor that is not part of a full circuit. The conductor quickly develops a net positive charge at one end and a net negative charge at the other. These charges generate an electric field opposite the direction of the applied electric field, which reduces the current. Eventually,...
Batteries and Fuel Cells03:12

Batteries and Fuel Cells

A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
MOS Capacitor01:25

MOS Capacitor

A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
Clamper Circuit01:14

Clamper Circuit

A clamper circuit, also known as a DC restorer, represents a specialized variant of the rectifier circuit, notable for its method of taking the output across the diode rather than the capacitor. This configuration lends to several distinctive applications, particularly in handling square wave inputs.
Within this circuit, the diode's orientation prompts the capacitor to charge up to the level of the most negative peak of the input signal. Upon reaching this state, the diode ceases to conduct,...
Magnetic Damping01:17

Magnetic Damping

Eddy currents can produce significant drag on motion, called magnetic damping. For instance, when a metallic pendulum bob swings between the poles of a strong magnet, significant drag acts on the bob as it enters and leaves the field, quickly damping the motion.
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...

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関連する実験動画

Updated: Jun 21, 2026

Electroantennography-based Bio-hybrid Odor-detecting Drone using Silkmoth Antennae for Odor Source Localization
06:00

Electroantennography-based Bio-hybrid Odor-detecting Drone using Silkmoth Antennae for Odor Source Localization

Published on: August 27, 2021

タイガーモット・ジャム・バット・ソナー・ソナー

Aaron J Corcoran1, Jesse R Barber, William E Conner

  • 1Department of Biology, Wake Forest University, Winston-Salem, NC 27106, USA. corcaj8@wfu.edu

Science (New York, N.Y.)
|July 18, 2009
PubMed
まとめ
この要約は機械生成です。

タイガーモールはコウモリソナーを超音波のクリックでジャムし,捕食者のコウモリに対する防御です. この発見は,昆虫とコウモリとの間の進行中の進化の戦いにおける新しい抗コウモリ戦略を明らかにしています.

さらに関連する動画

Insect-machine Hybrid System: Remote Radio Control of a Freely Flying Beetle (Mercynorrhina torquata)
10:17

Insect-machine Hybrid System: Remote Radio Control of a Freely Flying Beetle (Mercynorrhina torquata)

Published on: September 2, 2016

Flying Insect Detection and Classification with Inexpensive Sensors
05:16

Flying Insect Detection and Classification with Inexpensive Sensors

Published on: October 15, 2014

関連する実験動画

Last Updated: Jun 21, 2026

Electroantennography-based Bio-hybrid Odor-detecting Drone using Silkmoth Antennae for Odor Source Localization
06:00

Electroantennography-based Bio-hybrid Odor-detecting Drone using Silkmoth Antennae for Odor Source Localization

Published on: August 27, 2021

Insect-machine Hybrid System: Remote Radio Control of a Freely Flying Beetle (Mercynorrhina torquata)
10:17

Insect-machine Hybrid System: Remote Radio Control of a Freely Flying Beetle (Mercynorrhina torquata)

Published on: September 2, 2016

Flying Insect Detection and Classification with Inexpensive Sensors
05:16

Flying Insect Detection and Classification with Inexpensive Sensors

Published on: October 15, 2014

科学分野:

  • バイオアコースティクス バイオアコースティクス
  • 動物の行動 動物の行動
  • 進化生物学の進化生物学について

背景:

  • 蝙蝠は狩猟のためにソナーを使用し,昆虫に脅威を与えます.
  • タイガーモールのいくつかは,コウモリを遠ざけるために超音波のクリックを発する.
  • 以前の研究では,これらのクリックが毒性に対するコウモリへの警告または彼らを驚かせることを示唆していたが,ソナー妨害の証拠は決定的ではなかった.

研究 の 目的:

  • タイガーモスがジャムバット・ソナーをクリックするかどうかを調査するために.
  • バットに対するおいしいトラモリの防御メカニズムを理解する.

主な方法:

  • 超音波録音を用いて,やコウモリの音を記録した.
  • バットモスの相互作用を観察するために高速赤外線ビデオ撮影を使用しました.
  • 制御実験から得られた音声と行動データを分析した.

主要な成果:

  • おいしいタイガーモットであるBertholdia trigonaが,大きな茶色のコウモリ (Eptesicus fuscus) を攻撃するソナーを妨害することを実証した.
  • B.トライゴナによって生成される超音波のクリックは,コウモリのエコーロケーションに効果的に干渉します.
  • この妨害行為は,バットモスとのリアルタイムでの遭遇で観察されました.

結論:

  • ソナー妨害は,コウモリに対する獲物の防御戦略である.
  • この発見は,昆虫における反捕食者適応の既知のレパートリーを拡大するものである.
  • これは,コウモリと昆虫の捕食者の間の複雑な進化的軍拡競争を強調しています.