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相关概念视频

Distributed Loads01:19

Distributed Loads

534
Distributed loads are a common type of load that engineers and scientists encounter in various practical situations. Distributed loads often refer to a type of load spread over a surface or a structure and can be modeled as continuous force per unit area.
For example, consider a bookshelf filled with books stacked vertically adjacent to each other. The weight of the books is evenly distributed over the length of the shelf. As a result, the pressure at different locations on the surface of the...
534
Distributed Loads: Problem Solving01:21

Distributed Loads: Problem Solving

645
Beams are structural elements commonly employed in engineering applications requiring different load-carrying capacities. The first step in analyzing a beam under a distributed load is to simplify the problem by dividing the load into smaller regions, which allows one to consider each region separately and calculate the magnitude of the equivalent resultant load acting on each portion of the beam. The magnitude of the equivalent resultant load for each region can be determined by calculating...
645
Distribution Reliability and Automation01:25

Distribution Reliability and Automation

107
Distribution reliability in electrical power systems is critical for ensuring an uninterrupted power supply to consumers at minimal cost. According to IEEE Standard Terms, reliability is the probability that a device will function without failure over a specified time period or amount of usage. For electric power distribution, this translates to maintaining continuous power supply and addressing customer concerns over power outages. Several indices, as defined by IEEE Standard 1366-2012, are...
107
Maximum Size of Aggregate01:12

Maximum Size of Aggregate

113
The maximum size of aggregate is defined as the aperture of the sieve retaining 15 percent or more of the particles present in the aggregate sample. The aggregate's maximum size impacts the concrete's water requirement, workability, and strength. Larger aggregates reduce the surface area needing cement paste coverage, which can lower water needs, thereby allowing a decrease in the water-to-cement ratio when the desired workability and richness of the mix are to be maintained, which can...
113
Short-distance Transport of Resources02:12

Short-distance Transport of Resources

16.0K
Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
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Non-ohmic Devices00:51

Non-ohmic Devices

1.1K
In most substances, the current flow is proportional to the voltage applied to it. A simple relationship between the values of current, voltage, and resistance is known as Ohm's law. Nonohmic devices do not exhibit a linear relationship between voltage and current. One such device is the semiconducting circuit element known as a diode. A diode is a circuit device that allows current flow in only one direction.
Consider a simple circuit consisting of a battery, a diode, and a resistor. A...
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相关实验视频

Updated: Jun 29, 2025

Data Communication Based on MQTT in a Polymer Extrusion Process
08:15

Data Communication Based on MQTT in a Polymer Extrusion Process

Published on: July 15, 2022

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一个可扩展的基于区块链的框架,用于高效的物联网数据管理,使用轻量级的共识共识.

Ehtisham Ul Haque1, Adil Shah1, Jawaid Iqbal2

  • 1Department of Computer Science, MY University, Islamabad, 44000, Pakistan.

Scientific reports
|April 3, 2024
PubMed
概括
此摘要是机器生成的。

本研究介绍了一种可扩展的区块链框架,用于物联网 (IoT) 数据管理,使用轻量级的授权权益证明 (DPoS) 共识算法. 该框架显著提高了资源有限的物联网网络的性能和效率.

关键词:
区块链 区块链 区块链 区块链共识算法共识算法数据存储数据的存储.物联网的物联网,就是物联网.智能合约是一种智能合约.

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Databases to Efficiently Manage Medium Sized, Low Velocity, Multidimensional Data in Tissue Engineering

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相关实验视频

Last Updated: Jun 29, 2025

Data Communication Based on MQTT in a Polymer Extrusion Process
08:15

Data Communication Based on MQTT in a Polymer Extrusion Process

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Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
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Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

Published on: September 8, 2023

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Databases to Efficiently Manage Medium Sized, Low Velocity, Multidimensional Data in Tissue Engineering
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Databases to Efficiently Manage Medium Sized, Low Velocity, Multidimensional Data in Tissue Engineering

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科学领域:

  • 计算机科学 计算机科学
  • 网络安全 网络安全
  • 分布式系统 分布式系统

背景情况:

  • 区块链技术为物联网 (IoT) 网络提供安全解决方案.
  • 由于大量的物联网设备和数据量,现有的区块链解决方案面临着可扩展性挑战.
  • 物联网网络中的资源限制限制了传统共识机制的适用性.

研究的目的:

  • 提出一个可扩展的基于区块链的框架来管理物联网数据.
  • 为解决基于区块链的物联网网络中的可扩展性和效率问题.
  • 在资源有限的物联网环境中提高性能.

主要方法:

  • 使用授权权益证明 (DPoS) 共识算法进行轻量级交易验证.
  • 实现了星际文件系统 (IPFS),用于分布式数据存储.
  • 使用Docker进行网络性能评估 (吞吐量,延迟,资源利用).

主要成果:

  • 拟议的框架显示低延迟,测量不到0.976 ms.
  • 与权益证明 (PoS) 共识相比,取得了更好的表现.
  • 经验发现验证了高效的吞吐量,延迟和资源利用.

结论:

  • 基于DPOS的框架为物联网数据管理提供了可扩展和高效的解决方案.
  • 拟议的方法非常适合物联网应用程序,要求低延迟和资源效率.
  • 这项研究有助于克服物联网生态系统中的区块链可扩展性限制.