Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Sampling Theorem01:15

Sampling Theorem

1.3K
In signal processing, the analysis of continuous-time signals, denoted as x(t), often involves sampling techniques to convert these signals into discrete-time signals. This process is essential for digital representation and manipulation. A critical component in sampling is the train of impulses, characterized by the sampling interval and the sampling frequency. The relationship between these parameters and the original signal's properties dictates the success of the sampling process.
1.3K
Propagation of Uncertainty from Random Error00:59

Propagation of Uncertainty from Random Error

1.8K
An experiment often consists of more than a single step. In this case, measurements at each step give rise to uncertainty. Because the measurements occur in successive steps, the uncertainty in one step necessarily contributes to that in the subsequent step. As we perform statistical analysis on these types of experiments, we must learn to account for the propagation of uncertainty from one step to the next. The propagation of uncertainty depends on the type of arithmetic operation performed on...
1.8K
Weighted Mean00:57

Weighted Mean

6.2K
While taking the arithmetic, geometric, or harmonic mean of a sample data set, equal importance is assigned to all the data points. However, all the values may not always be equally important in some data sets. An intrinsic bias might make it more important to give more weightage to specific values over others.
For example, consider the number of goals scored in the matches of a tournament. While computing the average number of goals scored in the tournament, it may be more important to...
6.2K
Entropy Change in Reversible Processes01:10

Entropy Change in Reversible Processes

3.2K
In the Carnot engine, which achieves the maximum efficiency between two reservoirs of fixed temperatures, the total change in entropy is zero. The observation can be generalized by considering any reversible cyclic process consisting of many Carnot cycles. Thus, it can be stated that the total entropy change of any ideal reversible cycle is zero.
The statement can be further generalized to prove that entropy is a state function. Take a cyclic process between any two points on a p-V diagram.
3.2K
Propagation of Uncertainty from Systematic Error01:10

Propagation of Uncertainty from Systematic Error

1.4K
The atomic mass of an element varies due to the relative ratio of its isotopes. A sample's relative proportion of oxygen isotopes influences its average atomic mass. For instance, if we were to measure the atomic mass of oxygen from a sample, the mass would be a weighted average of the isotopic masses of oxygen in that sample. Since a single sample is not likely to perfectly reflect the true atomic mass of oxygen for all the molecules of oxygen on Earth, the mass we obtain from this...
1.4K
Sample Size Calculation01:19

Sample Size Calculation

6.4K
Knowledge of the sample size is the first requirement to conduct random sampling or an experiment. The sample size is the total number of units, observations, or groups (in some cases) used to get the data to estimate a population parameter. As the name suggests, the sample size is that of the sample drawn from the population and differs from the population size.
The sample size for the given experiment or sampling effort is fundamental to any study design. Sample size decides the number of...
6.4K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Access to C─N and N─N Axially Chiral Pyridinones via NHC-Catalyzed Dynamic Kinetic Resolution of Rotationally Restricted Cyclic Imides.

Angewandte Chemie (International ed. in English)·2026
Same author

Performance characterization of light-emitting diode array-based photoacoustic computed tomography (LED-PACT).

Biomedical optics express·2025
Same author

Ganglioside therapy in cancer molecular insights and therapeutic opportunities.

Discover oncology·2025
Same author

Feasibility of an ultra-compact, wireless ultrasound and photoacoustic imaging system (wUS-PA).

Optics letters·2025
Same author

Enhancing cementoenamel junction (CEJ) imaging using gold nanorods in optical coherence tomography (OCT).

Lasers in medical science·2025
Same author

The Escherichia coli replication initiator DnaA is titrated on the chromosome.

Nature communications·2025
Same journal

Erratum: Bacterial Turbulence at Compressible Fluid Interfaces [Phys. Rev. Lett. 136, 138301 (2026)].

Physical review letters·2026
Same journal

Unveiling Light-Quark Yukawa Flavor Structure via Dihadron Fragmentation at Lepton Colliders.

Physical review letters·2026
Same journal

Adaptable Route to Fast Coherent State Transport via Bang-Bang-Bang Protocols.

Physical review letters·2026
Same journal

Topological Transition and Emergence of Elasticity of Dislocation in Skyrmion Lattice: Beyond Kittel's Magnetic-Polar Analogy.

Physical review letters·2026
Same journal

Pound-Drever-Hall Method for Superconducting-Qubit Readout.

Physical review letters·2026
Same journal

Coupling a ^{73}Ge Nuclear Spin to an Electrostatically Defined Quantum Dot in Silicon.

Physical review letters·2026
查看所有相关文章

相关实验视频

Updated: Jan 17, 2026

Optimization of Processing of Tiebangchui with Highland Barley Wine Based on the Box-Behnken Design Combined with the Entropy Method
09:12

Optimization of Processing of Tiebangchui with Highland Barley Wine Based on the Box-Behnken Design Combined with the Entropy Method

Published on: May 19, 2023

1.2K

精确计算转移与路径重量采样的转移.

Avishek Das1, Pieter Rein Ten Wolde1

  • 1AMOLF, Science Park 104, 1098 XG, Amsterdam, The Netherlands.

Physical review letters
|September 22, 2025
PubMed
概括
此摘要是机器生成的。

我们开发了转移路重量采样 (TE-PWS),这是一个精确的计算方法来量化信息流. 这种新的算法克服了以前近似的局限性,使复杂系统的精确分析成为可能.

更多相关视频

Using Wavelet Entropy to Demonstrate how Mindfulness Practice Increases Coordination between Irregular Cerebral and Cardiac Activities
08:08

Using Wavelet Entropy to Demonstrate how Mindfulness Practice Increases Coordination between Irregular Cerebral and Cardiac Activities

Published on: May 10, 2017

15.2K
Applications of EEG Neuroimaging Data: Event-related Potentials, Spectral Power, and Multiscale Entropy
11:15

Applications of EEG Neuroimaging Data: Event-related Potentials, Spectral Power, and Multiscale Entropy

Published on: June 27, 2013

34.4K

相关实验视频

Last Updated: Jan 17, 2026

Optimization of Processing of Tiebangchui with Highland Barley Wine Based on the Box-Behnken Design Combined with the Entropy Method
09:12

Optimization of Processing of Tiebangchui with Highland Barley Wine Based on the Box-Behnken Design Combined with the Entropy Method

Published on: May 19, 2023

1.2K
Using Wavelet Entropy to Demonstrate how Mindfulness Practice Increases Coordination between Irregular Cerebral and Cardiac Activities
08:08

Using Wavelet Entropy to Demonstrate how Mindfulness Practice Increases Coordination between Irregular Cerebral and Cardiac Activities

Published on: May 10, 2017

15.2K
Applications of EEG Neuroimaging Data: Event-related Potentials, Spectral Power, and Multiscale Entropy
11:15

Applications of EEG Neuroimaging Data: Event-related Potentials, Spectral Power, and Multiscale Entropy

Published on: June 27, 2013

34.4K

科学领域:

  • 信息理论 信息理论
  • 计算神经科学是一种神经科学.
  • 复杂的系统复杂的系统.

背景情况:

  • 量化定向信息流对于理解自然和人工系统至关重要.
  • 传输是信息流的关键指标,但通常依赖于不受控制的近似值.
  • 现有的方法与复杂的模型进行斗争,包括那些具有隐藏变量,非线性和反的模型.

研究的目的:

  • 引入一种新的计算算法,转移路重量采样 (TE-PWS),用于精确的转移量化.
  • 能够精确地测量各种随机模型中的信息流.
  • 解决复杂动态系统中近似方法的局限性.

主要方法:

  • 开发了TE-PWS,一种利用聚合物和路径采样技术的计算算法.
  • 计算转移作为蒙特卡洛平均值在信号轨迹空间.
  • 将TE-PWS应用于线性和非线性系统,包括具有反的系统.

主要成果:

  • 对于任何随机模型,TE-PWS允许精确量化转移.
  • 证明了常见的近似方法会产生显著的系统错误和高的计算成本.
  • 展示了TE-PWS处理复杂场景的能力,如多个隐藏变量,非线性和反.

结论:

  • TE-PWS提供了一个精确有效的方法来计算转移.
  • 该研究强调了以前使用的近似方法的不准确性.
  • TE-PWS提供了一个强大的工具来分析复杂系统中的信息流,克服反循环带来的挑战.