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関連する概念動画

Cardiac Output I:Effect of Heart Rate on Cardiac Output01:19

Cardiac Output I:Effect of Heart Rate on Cardiac Output

2.5K
Cardiac Output
Cardiac output (CO) refers to the total amount of blood ejected by one of the ventricles in liters per minute (L/min). In a resting adult, CO ranges from 5 to 6 L/min, adjusting according to the body's metabolic requirements.
Effect of Heart Rate on Cardiac Output
Cardiac output adapts to metabolic demands during stress, physical activity, or illness. The autonomic nervous system regulates heart rate via the sinoatrial node. The parasympathetic nervous system decreases heart...
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Measuring Reaction Rates03:09

Measuring Reaction Rates

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Polarimetry finds application in chemical kinetics to measure the concentration and reaction kinetics of optically active substances during a chemical reaction. Optically active substances have the capability of rotating the plane of polarization of linearly polarized light passing through them—a feature called optical rotation. Optical activity is attributed to the molecular structure of substances. Normal monochromatic light is unpolarized and possesses oscillations of the electrical...
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The Integrated Rate Law: The Dependence of Concentration on Time02:39

The Integrated Rate Law: The Dependence of Concentration on Time

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While the differential rate law relates the rate and concentrations of reactants, a second form of rate law called the integrated rate law relates concentrations of reactants and time. Integrated rate laws can be used to determine the amount of reactant or product present after a period of time or to estimate the time required for a reaction to proceed to a certain extent. For example, an integrated rate law helps determine the length of time a radioactive material must be stored for its...
41.3K
Linear time-invariant Systems01:23

Linear time-invariant Systems

901
A system is linear if it displays the characteristics of homogeneity and additivity, together termed the superposition property. This principle is fundamental in all linear systems. Linear time-invariant (LTI) systems include systems with linear elements and constant parameters.
The input-output behavior of an LTI system can be fully defined by its response to an impulsive excitation at its input. Once this impulse response is known, the system's reaction to any other input can be...
901
Cardiac Output II: Effect of Stroke Volume on Cardiac Output01:22

Cardiac Output II: Effect of Stroke Volume on Cardiac Output

3.3K
Cardiac output (CO), the amount of blood the heart pumps per minute, is a parameter in cardiovascular physiology determined by stroke volume and heart rate. Stroke volume, the amount of blood pushed from one of the ventricles per heartbeat, is influenced by preload, afterload, and contractility.
Preload
Preload refers to the initial elongation of the cardiac myocytes before contraction and is related to the volume of blood filling the heart at the end of diastole, or end-diastolic volume. The...
3.3K
BIBO stability of continuous and discrete -time systems01:24

BIBO stability of continuous and discrete -time systems

915
System stability is a fundamental concept in signal processing, often assessed using convolution. For a system to be considered bounded-input bounded-output (BIBO) stable, any bounded input signal must produce a bounded output signal. A bounded input signal is one where the modulus does not exceed a certain constant at any point in time.
To determine the BIBO stability, the convolution integral is utilized when a bounded continuous-time input is applied to a Linear Time-Invariant (LTI) system....
915

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関連する実験動画

Updated: Jan 29, 2026

Measurement of Specific Mycobacterial Mistranslation Rates with Gain-of-function Reporter Systems
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時間遅延システムにおける出力測定を用いた規定レート目標追従制御

Chengye Zhang1, Ci Chen2, Frank L Lewis3

  • 1The School of Automation, Guangdong University of Technology, Guangzhou, China; Guangdong Provincial Key Laboratory of Intelligent Systems and Optimization Integration, Guangzhou, China.

Neural networks : the official journal of the International Neural Network Society
|January 28, 2026
PubMed
まとめ

本研究では、入力遅延を伴う目標追従システムのための新しい強化学習手法を導入する。このアプローチは、出力測定のみを使用して将来の状態を予測することにより、正確な追従性能を保証する。

キーワード:
出力測定強化学習ロバスト出力制御目標追従時間遅延システム

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Ultrafast Time-resolved Near-IR Stimulated Raman Measurements of Functional π-conjugate Systems
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Last Updated: Jan 29, 2026

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Measuring Delay Discounting in Humans Using an Adjusting Amount Task
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科学分野:

  • 制御システム工学
  • 機械学習
  • ロボット工学

背景:

  • 目標追従システムは、入力時間遅延のためにしばしば課題に直面する。
  • 遅延が存在する場合に正確な追従性能を保証することは、多くのアプリケーションにとって重要である。

研究 の 目的:

  • 入力時間遅延を伴う目標追従のための強化学習フレームワークを開発する。
  • 出力測定のみを使用して、規定された収束レートでの追従性能を保証する。

主な方法:

  • ロバスト出力制御理論と強化学習を統合する。
  • 入力・出力測定による将来状態予測という新しいアプローチを提案する。
  • 将来の状態を推定し、遅延を補償するために、オフポリシー強化学習アルゴリズムを開発する。

主要な成果:

  • 提案手法は、入力時間遅延を伴う目標追従問題を効果的に解決する。
  • このアプローチは、入力時間遅延と出力フィードバック追従を単一のフレームワークに統合する。
  • 数値結果は、強化学習アルゴリズムの有効性を検証する。

結論:

  • 開発されたアルゴリズムは、入力時間遅延のあるシステムでの正確な目標追従を可能にする。
  • この手法は出力測定のみに依存しており、正確なシステムモデルを必要としない。
  • この研究は、実世界の追従アプリケーションのための堅牢なソリューションを提供する。