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

Issues And Trends In Healthcare Delivery System01:29

Issues And Trends In Healthcare Delivery System

6.1K
The issues and trends in healthcare delivery are constantly changing. The COVID-19 pandemic is one recent issue that wreaked havoc on healthcare systems, causing a shortage of healthcare workers, high demand for medicines and supplies, and increased medical expenditure due to a lack of insurance. Other issues include rising healthcare costs and care fragmentation.
Cost Containment
Payment for healthcare services has historically promoted adoption of costly and often unnecessary or inefficient...
6.1K
Storage01:23

Storage

364
A schema is a mental framework that helps individuals organize and interpret information. Schemata, formed from previous experiences, influence how we process new information: how we encode it, the inferences we make, and how we retrieve it. For instance, a schema for what a typical classroom looks like might include desks, a teacher's desk, a whiteboard, and students in such an environment. This expectation helps us quickly understand and navigate new classrooms without needing to analyze...
364
Distributed Loads: Problem Solving01:21

Distributed Loads: Problem Solving

1.1K
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...
1.1K
Distributed Loads01:19

Distributed Loads

947
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...
947
Light Acquisition02:16

Light Acquisition

9.4K
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
9.4K
Maximum Size of Aggregate01:12

Maximum Size of Aggregate

524
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...
524

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

A Lightweight Accountable Parallel Blockchain Architecture Based on Redactable Blockchain for Agri-Food Traceability.

Foods (Basel, Switzerland)·2025
Same author

Blockchain-based proxy re-encryption access control method for biological risk privacy protection of agricultural products.

Scientific reports·2024
Same author

A novel method for Pu-erh tea face traceability identification based on improved MobileNetV3 and triplet loss.

Scientific reports·2023
Same author

Trusted-auditing chain: A security blockchain prototype used in agriculture traceability.

Heliyon·2022
Same author

Integration of Privacy Protection and Blockchain-Based Food Safety Traceability: Potential and Challenges.

Foods (Basel, Switzerland)·2022
Same author

Detecting Pests From Light-Trapping Images Based on Improved YOLOv3 Model and Instance Augmentation.

Frontiers in plant science·2022

相关实验视频

Updated: Jan 17, 2026

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

11.3K

基于区块链的农业供应链使用存储光节点进行数据存储和查询优化.

Mei Sun1,2, Na Luo1,3, Xing Bin1,3

  • 1National Engineering Research Center for Information Technology in Agriculture, Beijing, 100097, China.

Scientific reports
|September 24, 2025
PubMed
概括

一个新的存储光节点 (SLN) 模型通过减少95%的存储和加快数据检索来增强基于区块链的农业可追溯性. 这使得资源有限的农业供应链更容易获得区块链.

关键词:
农产品供应链中的农产品供应链.区块链 区块链 区块链 区块链灯光节点的光节点查询优化查询优化存储模型的存储模型.

更多相关视频

Executing Complexity-Increasing Queries in Relational MySQL and NoSQL MongoDB and EXist Size-Growing ISO/EN 13606 Standardized EHR Databases
07:26

Executing Complexity-Increasing Queries in Relational MySQL and NoSQL MongoDB and EXist Size-Growing ISO/EN 13606 Standardized EHR Databases

Published on: March 19, 2018

9.7K
Databases to Efficiently Manage Medium Sized, Low Velocity, Multidimensional Data in Tissue Engineering
09:43

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

Published on: November 22, 2019

6.7K

相关实验视频

Last Updated: Jan 17, 2026

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

11.3K
Executing Complexity-Increasing Queries in Relational MySQL and NoSQL MongoDB and EXist Size-Growing ISO/EN 13606 Standardized EHR Databases
07:26

Executing Complexity-Increasing Queries in Relational MySQL and NoSQL MongoDB and EXist Size-Growing ISO/EN 13606 Standardized EHR Databases

Published on: March 19, 2018

9.7K
Databases to Efficiently Manage Medium Sized, Low Velocity, Multidimensional Data in Tissue Engineering
09:43

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

Published on: November 22, 2019

6.7K

科学领域:

  • 农业科学 农业科学
  • 计算机科学 计算机科学
  • 信息技术 信息技术 信息技术

背景情况:

  • 农业供应链产生大量数据,导致数据管理和可追溯性的挑战.
  • 传统的区块链技术虽然确保了数据完整性,但受到高存储冗余的影响,增加了资源消耗,并限制了资源受限设备的参与.

研究的目的:

  • 提出一个适合农产品供应链独特特征的存储光节点 (SLN) 模型.
  • 解决在农业环境中储存和资源消耗方面完全区块链节点的局限性.

主要方法:

  • 开发了一个SLN模型,集成基于相关性,时间和频率的冷/热数据分类机制.
  • 实施了采用Bloom过器的查询优化策略,以提高数据检索速度.
  • 通过使用50563个现实世界农产品供应链记录进行了实验.

主要成果:

  • 与全节点相比,SLN模型将存储使用量减少了95.10%.
  • 实现了平均查询时间为30.91ms,比传统的光节点快得多.
  • 证明了该模型在农业可追溯性方面的效率和可扩展性.

结论:

  • 拟议的SLN模型为基于区块链的农业可追溯性提供了一个高效和可扩展的解决方案.
  • 这种方法有效地减轻了存储和资源限制,使区块链在农业中得到更广泛的采用.
  • 数据分类和查询优化的整合显著改善了农业供应链中的数据管理.