相关实验视频
Updated: Jul 15, 2025

09:17
Surrogate Model Development for Digital Experiments in Welding
Published on: March 28, 2025
997
ScGAN:一种生成对抗网络,用于预测假设的超导体.
1Tesla STEM High School, Redmond, WA 98053, United States of America.
Journal of physics. Condensed matter : an Institute of Physics journal
|September 27, 2023
概括
这项研究引入了ScGAN,一种新的生成对抗网络 (GAN),以加速发现新的高温超导体 (HTS). ScGAN显著提高了发现率,并确定了有前途的新型HTS候选人.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 人工智能的人工智能
背景情况:
- 高温超导体 (HTS) 已在30多年前被发现,但缺乏机械的理解和系统的搜索方法.
- 发现新的超导体对于技术进步和基本的科学洞察至关重要.
研究的目的:
- 开发一种高效的计算方法,用于预测新型超导材料.
- 使用人工智能加速对高温超导体 (HTS) 的搜索.
主要方法:
- 一个名为ScGAN的生成对抗网络 (GAN) 已被开发用于超导体预测.
- ScGAN是在开放量子材料数据库上进行训练,并使用SuperCon数据库进行了微调.
- 一个分类模型被用来验证预测的超导候选.
主要成果:
- 当通过分类模型验证时,ScGAN预测超导候选物具有70%的成功率.
- 这与传统的手动搜索方法相比,发现率增加了23倍.
- 超过99%的ScGAN预测是新材料,包括有希望的高温超导体候选者.
结论:
- ScGAN为发现新的超导体提供了一种新且高效的方法.
- 该方法有可能为技术应用提供材料,并促进对高温超导的理解.
相关概念视频
Types Of Superconductors
1.0K
A superconductor is a substance that offers zero resistance to the electric current when it drops below a critical temperature. Zero resistance is not the only interesting phenomenon as materials reach their transition temperatures. A second effect is the exclusion of magnetic fields. This is known as the Meissner effect. A light, permanent magnet placed over a superconducting sample will levitate in a stable position above the superconductor. High-speed trains that levitate on strong...
1.0K
Superconductor
1.2K
A substance that reaches superconductivity, a state in which magnetic fields cannot penetrate, and there is no electrical resistance, is referred to as a superconductor. In 1911, Heike Kamerlingh Onnes of Leiden University, a Dutch physicist, observed a relation between the temperature and the resistance of the element mercury. The mercury sample was then cooled in liquid helium to study the linear dependence of resistance on temperature. It was observed that, as the temperature decreased, the...
1.2K
Theory of Metallic Conduction
1.4K
The conduction of free electrons inside a conductor is best described by quantum mechanics. However, a classical model makes predictions close to the results of quantum mechanics. It is called the theory of metallic conduction.
In this theory, Newton's second law of motion is used to determine the acceleration of an electron in the presence of an applied electric field. Then, its velocity is expressed via this acceleration.
An electron moves through the crystal, containing positive ions,...
In this theory, Newton's second law of motion is used to determine the acceleration of an electron in the presence of an applied electric field. Then, its velocity is expressed via this acceleration.
An electron moves through the crystal, containing positive ions,...
1.4K
Superposition Theorem for AC Circuits
686
Consider encountering a circuit in a steady state where all its inputs are sinusoidal, yet they do not all possess the same frequency. Such a circuit is not classified as an alternating current (AC) circuit, and consequently, its currents and voltages will not exhibit sinusoidal behavior. However, this circuit can be analyzed using the principle of superposition.
The principle of superposition stipulates that the output of a linear circuit with several concurrent inputs is equivalent to the...
The principle of superposition stipulates that the output of a linear circuit with several concurrent inputs is equivalent to the...
686
Ampere-Maxwell's Law: Problem-Solving
662
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...
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...
662
Equipotential Surfaces and Conductors
3.5K
For a conductor in which all charges are at rest, the conductor's surface is equipotential. The electric field is always perpendicular to equipotential surfaces. Therefore, in a conductor with static charges, the electric field just outside the conductor is always perpendicular to the conductor's surface. Any tangential component of the electric field will cause charges to move inside the conductor, which will violate the electrostatic nature of the system. In an electrostatic...
3.5K

