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相关概念视频

Oscillations In An LC Circuit01:30

Oscillations In An LC Circuit

2.1K
An idealized LC circuit of zero resistance can oscillate without any source of emf by shifting the energy stored in the circuit between the electric and magnetic fields. In such an LC circuit, if the capacitor contains a charge q before the switch is closed, then all the energy of the circuit is initially stored in the electric field of the capacitor. This energy is given by
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RLC Circuit as a Damped Oscillator01:30

RLC Circuit as a Damped Oscillator

789
An RLC circuit combines a resistor, inductor, and capacitor, connected in a series or parallel combination.
Consider a series RLC circuit. Here, the presence of resistance in the circuit leads to energy loss due to joule heating in the resistance. Therefore, the total electromagnetic energy in the circuit is no longer constant and decreases with time. Since the magnitude of charge, current, and potential difference continuously decreases, their oscillations are said to be damped. This is...
789
Design Example: Underdamped Parallel RLC Circuit01:17

Design Example: Underdamped Parallel RLC Circuit

209
Consider designing an oscillator circuit, a crucial component in various electronic devices and systems. The objective is to create an oscillator circuit with specific characteristics: a damped natural frequency of 4 kHz and a damping factor of 4 radians per second. To accomplish this, a parallel RLC circuit is employed, known for its ability to sustain oscillations at a resonant frequency. In this case, the damping factor is pivotal in achieving the desired performance.
Starting with a fixed...
209
Forced Oscillations01:06

Forced Oscillations

6.4K
When an oscillator is forced with a periodic driving force, the motion may seem chaotic. The motions of such oscillators are known as transients. After the transients die out, the oscillator reaches a steady state, where the motion is periodic, and the displacement is determined.
6.4K
RLC Series Circuit: Problem-Solving01:30

RLC Series Circuit: Problem-Solving

1.8K
Consider an AC generator with a frequency of 50 hertz and a voltage of 120 volts. The AC generator is connected to an RLC series circuit with a 20-ohms resistor, a 0.2-henry inductor, and a 0.05-farad capacitor. Determine the impedance, current amplitude, and phase difference between the generator's current and emf.
To solve the problem, first, determine the known and unknown quantities in the problem. Recalling the reactance equation for the inductor and capacitor and substituting the...
1.8K
Design Example: Capacitance Multiplier Circuit01:20

Design Example: Capacitance Multiplier Circuit

609
In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
609

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相关实验视频

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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

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有一个有趣而难以捉摸的双合振荡器问题.

Gisele A Oda1

  • 1Instituto de Biociências, Departamento de Fisiologia, Universidade de São Paulo, SP, Brazil.

Neurobiology of sleep and circadian rhythms
|December 25, 2024
PubMed
概括
此摘要是机器生成的。

数学模型解释了时代生物学中的非线性现象. 这项研究研究了软体动物昼夜振荡器中的相位跳跃,揭示了它们如何在两个时刻器系统中出现.

关键词:
循环节律是指循环节律的节奏.合振荡器的合方式进行训练.建模建模模型是什么阶段跳跃 阶段跳跃

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科学领域:

  • 时间生物学 时间生物学
  • 数学建模的数学建模
  • 神经科学是一个神经科学.

背景情况:

  • 昼夜节律是基本的生物过程.
  • 时代生物学中的非线性现象需要先进的建模.
  • 之前对软体动物昼夜振荡器的研究表明同步和脱同步.

研究的目的:

  • 为了解释两个zeitgeber系统中相位跳跃的机制.
  • 分析简单模型在复制观察到的现象方面的局限性.
  • 为布拉系统呈现一个中间模型.

主要方法:

  • 在体外隔离并测量来自Bulla gouldiana眼睛的昼夜振荡器.
  • 数学建模和计算机模拟.
  • 分析与操纵周期的合极限周期振荡器.

主要成果:

  • 简单的模型未能在软体动物眼中复制观察到的相位跳跃.
  • 阶段跳跃在一组眼睛对和操纵周期的子集中观察到.
  • 这项研究解释了两种时间器系统中相位跳跃的出现.

结论:

  • 昼夜振荡器中的相位跳跃是复杂的现象.
  • 简单的模型不足以解释所有观察到的行为.
  • 了解这些机制对于时代生物学研究至关重要.