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

Precipitation Gravimetry01:03

Precipitation Gravimetry

4.7K
Precipitation gravimetry is based on converting an analyte into a sparingly soluble precipitate, which is separated by filtration and weighed. An ideal precipitate should be pure, insoluble, of known composition, and easily filtered from the reaction mixture.
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
4.7K
Typical Model Studies01:30

Typical Model Studies

295
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
295
Methods of Obtaining Topography01:25

Methods of Obtaining Topography

42
Topography involves measuring and mapping land elevations, natural features, and artificial structures to create accurate representations of the terrain. Topographic surveying relies on traditional and modern methods, each with distinct advantages and limitations.Traditional Surveying Methods:Transit stadia surveys and plane table surveys were widely used traditional surveying methods. These techniques relied on instruments like theodolites and stadia rods for measuring distances and angles,...
42
Precipitation Processes01:12

Precipitation Processes

373
The experimental conditions in a gravimetric analysis should be optimized to maximize the particle size and purity of the obtained precipitate. Ideally, the concentration of the precipitating reagent should be low with effective stirring to maintain low relative supersaturation for the growth of large crystals. In homogeneous precipitation, the precipitant is slowly generated by a chemical reaction in the solution to avoid local reagent excesses. For example, urea decomposes gradually to...
373
Design Example: Analyzing Capacity Contours for Flood Risk Assessment01:17

Design Example: Analyzing Capacity Contours for Flood Risk Assessment

36
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
36
Modeling and Similitude01:12

Modeling and Similitude

213
Scaled modeling is a fundamental technique in engineering, enabling the study of large and complex systems by creating smaller, manageable replicas that recreate critical characteristics of the original. In hydrology and civil infrastructure, for example, scaled models of dams help analyze water flow, turbulence, and pressure. This method allows for accurate predictions of real-world behavior within a controlled environment, significantly reducing the cost and time involved in full-scale...
213

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

Delayed Comparison and Apriori Algorithm (DCAA): A Tool for Discovering Protein-Protein Interactions From Time-Series Phosphoproteomic Data.

Frontiers in molecular biosciences·2020
Same author

The Roles of Inflammation in Keloid and Hypertrophic Scars.

Frontiers in immunology·2020
Same author

Preparation of poly-dopamine-silk fibroin sponge and its dye molecular adsorption.

Water science and technology : a journal of the International Association on Water Pollution Research·2020
Same author

Genomic analysis of Asian honeybee populations in China reveals evolutionary relationships and adaptation to abiotic stress.

Ecology and evolution·2020
Same author

Development and validation of a postoperative nomogram for predicting overall survival after endoscopic surgical management of olfactory neuroblastoma.

EClinicalMedicine·2020
Same author

Incipient Fault Diagnosis for High-Speed Train Traction Systems via Stacked Generalization.

IEEE transactions on cybernetics·2020

相关实验视频

Updated: May 24, 2025

A Protocol for Conducting Rainfall Simulation to Study Soil Runoff
10:35

A Protocol for Conducting Rainfall Simulation to Study Soil Runoff

Published on: April 3, 2014

20.8K

使用潮进行降雨下水模拟,具有特征投影和可逆实例正常化.

Zheng Fang1, Simin Qu1, Xiaoqiang Yang2

  • 1College of Hydrology and Water Resources, Hohai University, Nanjing, 210098, China.

Scientific reports
|February 28, 2025
PubMed
概括
此摘要是机器生成的。

简单的水文模型RR-TiDE在排水预测方面表现出色. 它的性能优于变压器和LSTM等复杂网络,在多盆模拟和数据散布预测中表现出强的性能.

关键词:
驼是什么意思?驼是什么意思?功能 投影 功能 投影这里是RevIN RevIN.预测流失的预测.时间序列密集编码器.变压器变压器变压器

更多相关视频

Use of Principal Components for Scaling Up Topographic Models to Map Soil Redistribution and Soil Organic Carbon
09:44

Use of Principal Components for Scaling Up Topographic Models to Map Soil Redistribution and Soil Organic Carbon

Published on: October 16, 2018

10.1K
Watershed Planning within a Quantitative Scenario Analysis Framework
12:44

Watershed Planning within a Quantitative Scenario Analysis Framework

Published on: July 24, 2016

7.9K

相关实验视频

Last Updated: May 24, 2025

A Protocol for Conducting Rainfall Simulation to Study Soil Runoff
10:35

A Protocol for Conducting Rainfall Simulation to Study Soil Runoff

Published on: April 3, 2014

20.8K
Use of Principal Components for Scaling Up Topographic Models to Map Soil Redistribution and Soil Organic Carbon
09:44

Use of Principal Components for Scaling Up Topographic Models to Map Soil Redistribution and Soil Organic Carbon

Published on: October 16, 2018

10.1K
Watershed Planning within a Quantitative Scenario Analysis Framework
12:44

Watershed Planning within a Quantitative Scenario Analysis Framework

Published on: July 24, 2016

7.9K

科学领域:

  • 水文学的水文学
  • 机器学习 机器学习
  • 时间序列分析时间序列分析

背景情况:

  • 传统的流量预测模型通常使用复杂的架构,如长短期存储器 (LSTM) 和变压器.
  • 这些复杂的结构可能并不总是必要的有效的水文建模.

研究的目的:

  • 介绍RR-TiDE,这是一个基于时间序列密度编码器的新,更简单的流水预测模型.
  • 评估RR-TiDE在数据稀疏盆地的多盆地流水模拟和预测中的性能.
  • 分析个别组件的贡献,例如特征投影层和可逆实例规范化 (RevIN).

主要方法:

  • 使用完全多层感知器架构开发的RR-TiDE,结合可逆实例规范化 (RevIN) 来处理水文数据的非静止性.
  • 训练并评估了捕捞区属性和大样本研究气象学 (CAMELS) 数据集上的模型.
  • 我们将RR-TiDE与基于变压器和LSTM的模型进行了比较,以预测7天的排水情况,并评估了其在数据稀疏的流域中的概括能力.

主要成果:

  • 在所有指标上,RR-TiDE在7天的预测中在多盆地排水模拟中超过了变压器和LSTM模型.
  • 在51个数据稀疏的流域中实现了0.82的Nash-Sutcliffe效率 (NSE) 中位数,用于1天的下水预测,这表明了强大的空间外推能力.
  • 功能投影层显著提高了RR-TiDE的性能,而RevIN则有助于稳定训练损失.

结论:

  • 与更复杂的深度学习架构相比,RR-TiDE提供了一个非常适合和更简单的降雨-流水模拟替代方案.
  • 该模型表现出强大的概括能力,即使在数据有限的流域中,也可以有效预测.
  • 这些发现表明,更简单,更精心设计的模型可以在水文预测中实现最先进的性能.