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相关概念视频

Stream Function01:20

Stream Function

2.0K
In two-dimensional incompressible fluid flow, the continuity equation is essential for ensuring mass conservation, meaning that any change in fluid entering or exiting a region is balanced by a corresponding change elsewhere. For incompressible flow, where density remains constant, this requirement simplifies to the condition that the divergence of the velocity field must be zero. Mathematically, this is expressed as,
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Rapidly Varying Flow01:24

Rapidly Varying Flow

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Rapidly varying flow (RVF) in open channels is characterized by abrupt changes in flow depth over a short distance, with the rate of depth change relative to distance often approaching unity. These flows are inherently complex due to their transient and multi-dimensional nature, making exact analysis difficult. However, approximate solutions using simplified models provide valuable insights into their behavior.Key Features of Rapidly Varying FlowRVF is commonly observed in scenarios involving...
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Signal Flow Graphs01:18

Signal Flow Graphs

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Signal-flow graphs offer a streamlined and intuitive approach to representing control systems, providing an alternative to traditional block diagrams. These graphs use branches to symbolize systems and nodes to represent signals, effectively illustrating the relationships and interactions within the system.
In a signal-flow graph, branches denote the system's transfer functions, while nodes represent the signals. The direction of signal flow is indicated by arrows, with the corresponding...
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Distance Measurements by Taping01:18

Distance Measurements by Taping

418
Tapes are essential in surveying for accurate, durable, and short-distance measurements. Made from lightweight, nylon-coated steel, they offer flexibility and strength for rugged outdoor use. The nylon coating protects against rust and wear, extending the tape's life. Standard lengths, around 30 meters, are marked in meters and millimeters for precision.Surveyors select tapes based on site conditions and accuracy needs. Lightweight, nylon-coated tapes are commonly used for ease of handling and...
418
Sampling Continuous Time Signal01:11

Sampling Continuous Time Signal

690
In signal processing, a continuous-time signal can be sampled using an impulse-train sampling technique, followed by the zero-order hold method. Impulse-train sampling involves the use of a periodic impulse train, which consists of a series of delta functions spaced at regular intervals determined by the sampling period. When a continuous-time signal is multiplied by this impulse train, it generates impulses with amplitudes corresponding to the signal's values at the sampling points.
In the...
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Sample Handling01:02

Sample Handling

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Transportation of samples from the collection point to the laboratory, as well as storage and preservation techniques, are crucial for maintaining sample integrity and ensuring accurate and reliable test results.
Samples should be transported carefully from collection points to the laboratory. They should be properly sealed and clearly labeled to prevent cross-contamination. To preserve the sample integrity, optimal temperature conditions during transport are essential. This could involve using...
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相关实验视频

Updated: Jan 17, 2026

Real-Time Proxy-Control of Re-Parameterized Peripheral Signals using a Close-Loop Interface
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实验室流媒体层用于同步的多式联络记录.

Christian Kothe1, Seyed Yahya Shirazi2, Tristan Stenner3

  • 1Intheon Labs, San Diego, CA, United States.

Imaging neuroscience (Cambridge, Mass.)
|September 17, 2025
PubMed
概括
此摘要是机器生成的。

实验室流媒体层 (LSL) 使用软件同步来自多个仪器的数据,确保神经行为研究的毫秒精确记录. 对于各种应用的复杂数据采集,LSL提供了一种可靠,具有成本效益的解决方案.

关键词:
大脑/行为量化和同步 (BBQS)移动大脑/身体记录 (MoBI)多模式录音记录实时同步实时同步.

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科学领域:

  • 神经科学是一个神经科学.
  • 计算机科学 计算机科学
  • 生物医学工程 生物医学工程

背景情况:

  • 从多个仪器同步获取数据对于准确记录生物与环境的相互作用至关重要.
  • 基于硬件的同步解决方案通常是昂贵的,并且对于各种系统来说不切实际.
  • 现有的方法与独立的仪表时钟,网络延迟和潜在的中断作斗争.

研究的目的:

  • 将实验室流媒体层 (LSL) 作为一个基于软件的框架来同步数据流.
  • 详细介绍LSL的架构,核心特征以及神经生理学和神经行为应用中的性能.
  • 突出使用LSL用于可靠数据记录的实际考虑和局限性.

主要方法:

  • 对于数据流对齐,LSL采用每个样本的时间和网络时间同步.
  • 该框架包含用于连接恢复,偏移校正和动补偿的功能.
  • 基于软件的同步通过局域网 (LAN) 实现.

主要成果:

  • 通过LSL,即使有网络中断,也可以连续,精确地记录数据.
  • 该框架支持超过150个数据采集设备类和跨多种编程语言的互操作性.
  • LSL已被证明具有弹性和多功能性,支持从基础研究到商业产品的各种应用.

结论:

  • LSL提供了一个强大的零配置软件解决方案,用于同步多式联网数据流.
  • 它促进了捕捉生物的动态和环境变化的复杂任务在一个共同的时间表上.
  • LSL是多式联通人类神经行为记录和实时分析的主要平台.