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相关概念视频

Phase Diagrams02:39

Phase Diagrams

48.9K
A phase diagram combines plots of pressure versus temperature for the liquid-gas, solid-liquid, and solid-gas phase-transition equilibria of a substance. These diagrams indicate the physical states that exist under specific conditions of pressure and temperature and also provide the pressure dependence of the phase-transition temperatures (melting points, sublimation points, boiling points). Regions or areas labeled solid, liquid, and gas represent single phases, while lines or curves represent...
48.9K
Phase Transitions02:31

Phase Transitions

22.6K
Whether solid, liquid, or gas, a substance's state depends on the order and arrangement of its particles (atoms, molecules, or ions). Particles in the solid pack closely together, generally in a pattern. The particles vibrate about their fixed positions but do not move or squeeze past their neighbors. In liquids, although the particles are closely spaced, they are randomly arranged. The position of the particles are not fixed—that is, they are free to move past their neighbors to...
22.6K
Inductance: Single-Phase And Three-Phase Line01:28

Inductance: Single-Phase And Three-Phase Line

613
Understanding the inductance of transmission lines is crucial for efficient design and operation in electrical power systems. This discussion delves into the inductance characteristics of single-phase two-wire and three-phase three-wire transmission lines with equal phase spacing.
Single-Phase Two-Wire Line:
A single-phase line consists of two solid cylindrical conductors, denoted as x and y. Each conductor carries phasor currents ix and iy, respectively. Given that the sum of these currents is...
613
Capacitance: Single-Phase And Three-Phase Line01:25

Capacitance: Single-Phase And Three-Phase Line

580
In electrical power systems, understanding the capacitance of transmission lines is fundamental for efficient operation.
Single-Phase Lines
Consider a single-phase, two-wire transmission line with equal phase spacing energized by a voltage source. One conductor carries a uniform positive charge, while the other carries an equal negative charge. The capacitance C of the line can be derived from the voltage V between the conductors. For a one-meter section of the line, the capacitance is given...
580
Phase Changes01:19

Phase Changes

5.2K
Phase transitions play an important theoretical and practical role in the study of heat flow. In melting or fusion, a solid turns into a liquid; the opposite process is freezing. In evaporation, a liquid turns into a gas; the opposite process is condensation.
A substance melts or freezes at a temperature called its melting point and boils or condenses at its boiling point. These temperatures depend on pressure. High pressure favors the denser form of the substance, so typically, high pressure...
5.2K
Phase-lead and Phase-lag Controllers01:22

Phase-lead and Phase-lag Controllers

532
Understanding the working function of different types of controllers can be illustrated with practical analogies, such as adjusting a stereo's volume equalizer. Cranking up the bass involves a phase-lead controller, which functions as a high-pass filter, while increasing the treble uses a phase-lag controller, which acts as a low-pass filter. PD controllers, similar to high-pass filters, enhance the system's response to high-frequency components. PI controllers, akin to low-pass...
532

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相关实验视频

Updated: Jan 20, 2026

A Pipette-Tip Based Method for Seeding Cells to Droplet Microfluidic Platforms
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A Pipette-Tip Based Method for Seeding Cells to Droplet Microfluidic Platforms

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基于AI的阶段播种 (AI-PhaSeed) 方法:早期应用和统计分析.

Benedetta Carrozzini1, Francesca Fedele1, Anna Moliterni1

  • 1Institute of Crystallography National Research Council via Amendola 122/o Bari 70126 Italy.

Journal of applied crystallography
|January 19, 2026
PubMed
概括

人工智能 (AI) 与一种新的阶段播种方法AI-PhaSeed相结合,增强了晶体结构解决方案. 这种方法将AI的能力扩展到更大的结构和具有挑战性的条件,改善了晶体结构的确定.

关键词:
人工智能分阶段化人工智能的人工智能是人工智能.结晶结构溶液的结晶结构是什么播种阶段播种阶段

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Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

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Phase Diagrams: Carbon Dioxide and Water Phase Diagrams
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Phase Diagrams: Carbon Dioxide and Water Phase Diagrams
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科学领域:

  • 晶体学 晶体学是指结晶学.
  • 人工智能的人工智能
  • 计算化学的计算化学

背景情况:

  • 传统的方法,如直接方法和帕特森技术支持结晶结构的确定.
  • 人工智能 (AI) 越来越多地被探索,因为它有潜力克服传统结构解决方案方法的局限性.
  • 最近的研究为小型结构引入了人工智能驱动的分相,以及适用于各种晶体结构的新型分相播种方法.

研究的目的:

  • 将一种新的阶段播种方法与用于晶体相位的AI网络集成.
  • 将人工智能驱动的结构解决方案的适用性扩展到更大的单元细胞体积和具有挑战性的实验条件.
  • 评估结合人工智能和相播种方法的可靠性和稳定性,以确定晶体结构.

主要方法:

  • 应用Carrozzini等的阶段播种方法,使用由Larsen等AI网络生成的种子阶段.
  • 在单元细胞体积超过1000 Å3的晶体结构上测试AI-PhaSeed联合方法.
  • 使用来自晶体学开放数据库的结构数据集进行广泛的验证.

主要成果:

  • 人工智能-PhaSeed方法成功地将人工智能分期的功能扩展到更大的单元细胞体积 (>1000 Å3).
  • 该方法即使在有限的实验分辨率条件下也表现出有效性.
  • 结合方法被证明是解决复杂晶体结构的强大而可靠的工具.

结论:

  • 人工智能-PhaSeed策略在人工智能驱动的晶体分析阶段化方面取得了重大进展.
  • 这种综合方法提高了自动化晶体结构确定的范围和可靠性.
  • 该研究强调了人工智能在解决结构生物学和材料科学领域的复杂挑战方面的潜力.