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

Maxwell-Boltzmann Distribution: Problem Solving01:20

Maxwell-Boltzmann Distribution: Problem Solving

2.8K
Individual molecules in a gas move in random directions, but a gas containing numerous molecules has a predictable distribution of molecular speeds, which is known as the Maxwell-Boltzmann distribution, f(v).
This distribution function f(v) is defined by saying that the expected number N (v1,v2) of particles with speeds between v1 and v2 is given by
2.8K
Ampere-Maxwell's Law: Problem-Solving01:17

Ampere-Maxwell's Law: Problem-Solving

1.1K
A parallel-plate capacitor with capacitance C, whose plates have area A and separation distance d, is connected to a resistor R and a battery of voltage V. The current starts to flow at t = 0. What is the displacement current between the capacitor plates at time t? From the properties of the capacitor, what is the corresponding real current?
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of the...
1.1K
Area Computation by the Alternative Coordinate Method01:24

Area Computation by the Alternative Coordinate Method

535
The alternative coordinate method, also known as the Shoelace Formula, is a technique for determining the area of a traverse using Cartesian coordinates. This method relies on the sequential arrangement of x and y coordinates for each point of the shape, ensuring accuracy and ease of application.In this approach, each corner's x and y coordinates are listed as fractions, with the x-coordinate as the numerator and the y-coordinate as the denominator. These coordinates are arranged sequentially...
535
Light Acquisition02:16

Light Acquisition

9.3K
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.
9.3K
One-Compartment Open Model: Wagner-Nelson and Loo Riegelman Method for ka Estimation01:24

One-Compartment Open Model: Wagner-Nelson and Loo Riegelman Method for ka Estimation

1.1K
This lesson introduces two critical methods in pharmacokinetics, the Wagner-Nelson and Loo-Riegelman methods, used for estimating the absorption rate constant (ka) for drugs administered via non-intravenous routes. The Wagner-Nelson method relates ka to the plasma concentration derived from the slope of a semilog percent unabsorbed time plot. However, it is limited to drugs with one-compartment kinetics and can be impacted by factors like gastrointestinal motility or enzymatic degradation.
On...
1.1K
The Antenna Complex01:15

The Antenna Complex

7.5K
Plants and other photosynthetic organisms comprise pigments capable of absorption of direct sunlight. These pigments are present in the reaction center - the main site of photochemical reactions as well as in the antenna complex. Under average light conditions, the rate at which reaction center pigments absorb light is far below the electron transport chain's capacity. As a result, the reaction center alone cannot provide enough energy to drive photosynthesis. The photosynthetic efficiency can...
7.5K

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 Chemical-Potential-Driven Self-Mitigation Mechanism during Calendar Aging.

Nano letters·2026
Same author

The Efficacy of Three Combinatory Decontamination Protocols and BMP-2-Incorporated BioCaP-Based Regenerative Material in Treating Implants With Peri-Implantitis In Vivo.

Clinical oral implants research·2026
Same author

Efficient Training of Large Vision Models via Advanced Automated Progressive Learning.

IEEE transactions on pattern analysis and machine intelligence·2026
Same author

Elevation from Binary to Ternary Resistive Switching Behaviors in Cubane-like Copper Iodide Clusters by Ligand Engineering.

Inorganic chemistry·2026
Same author

The MATE family transporter CaDTX12 confers cadmium accumulation in pepper (Capsicum annuum L.).

Functional & integrative genomics·2025
Same author

Additive Manufacturing of Gear Electrodes and EDM of a Gear Cavity.

Micromachines·2025

相关实验视频

Updated: Jan 9, 2026

Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption
10:36

Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption

Published on: November 3, 2023

2.1K

优化太阳辐射预测:通过ADAM和Cuckoo搜索算法增强ANN模型.

Muhammad Sadiq1, Muhammad Jibreel Sammar2, Muhammad Anwaar Saeed2

  • 1Shenzhen University of Information Technology, Shenzhen, China.

PloS one
|December 5, 2025
PubMed
概括
此摘要是机器生成的。

准确的太阳辐射预测对于可再生能源的整合至关重要. 这项研究引入了使用子搜索算法 (CSA) 和自适应时刻估计 (ADAM) 的混合模型,以优化人工神经网络 (ANN),显著提高预测准确性.

更多相关视频

Indoor Experimental Assessment of the Efficiency and Irradiance Spot of the Achromatic Doublet on Glass ADG Fresnel Lens for Concentrating Photovoltaics
09:00

Indoor Experimental Assessment of the Efficiency and Irradiance Spot of the Achromatic Doublet on Glass ADG Fresnel Lens for Concentrating Photovoltaics

Published on: October 27, 2017

9.3K

相关实验视频

Last Updated: Jan 9, 2026

Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption
10:36

Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption

Published on: November 3, 2023

2.1K
Indoor Experimental Assessment of the Efficiency and Irradiance Spot of the Achromatic Doublet on Glass ADG Fresnel Lens for Concentrating Photovoltaics
09:00

Indoor Experimental Assessment of the Efficiency and Irradiance Spot of the Achromatic Doublet on Glass ADG Fresnel Lens for Concentrating Photovoltaics

Published on: October 27, 2017

9.3K

科学领域:

  • 能源系统工程 能源系统工程
  • 人工智能的人工智能
  • 气象预报 气象预报

背景情况:

  • 越来越多的能源需求和环境问题需要将可再生能源 (RES) 整合到电网中.
  • 再生能源的间歇性质需要可靠的预测,以便有效地管理电网.
  • 人工神经网络 (ANN) 在太阳辐射预测中的准确性受到随机重量初始化的限制.

研究的目的:

  • 为了提高基于人工神经网络 (ANN) 的太阳辐射预测准确度.
  • 建议和评估混合预测模型,使用优化算法优化ANN权重.
  • 为了比较ADAM优化的ANN和CSA-ADAM优化的ANN模型的性能.

主要方法:

  • 开发了两种混合太阳辐射预测模型:ADAM优化的ANN和CSA-ADAM优化的ANN.
  • 采用子搜索算法 (CSA) 和自适应时刻估计 (ADAM) 来优化ANN边缘权重.
  • 使用实际天气数据和标准错误指标 (MSE,MAPE,MAE,RMSE) 验证的模型.

主要成果:

  • 在CSA-ADAM优化的ANN模型中,MSE=0.25,MAPE=0.17%,MAE=0.43和RMSE=0.50.的精度更高.
  • 在ADAM优化的ANN模型中,MSE=0.52,MAPE=0.18%,MAE=0.64和RMSE=0.72.
  • 预测时间相似,CSA-ADAM优化的ANN在0.1110 ± 0.0058秒,ADAM优化的ANN在0.1093 ± 0.0085秒.

结论:

  • 使用CSA优化ANN权重显著提高了太阳辐射预测的准确性.
  • CSA-ADAM混合模型为太阳能预测提供了更准确,更可靠的方法.
  • 混合优化技术有效地克服了用于 RES 预测的标准 ANN 模型的局限性.