相关实验视频
Updated: Jun 26, 2025

09:50
Measuring the Densities of Aqueous Glasses at Cryogenic Temperatures
Published on: June 28, 2017
8.7K
在等离子玻璃化过程中基于压力检测冰的极限
Soheil Kavian1, Matthew J Powell-Palm2
1J. Mike Walker '66 Department of Mechanical Engineering, Texas A&M University, College Station, TX, 77803, USA.
Cryobiology
|May 17, 2024
概括
一种冷保存方法 - - 离合玻璃化,由于压力悖论,在检测冰的形成方面存在挑战. 这项研究模拟了热力学极限,以帮助解释结果,并尽量减少玻璃化协议中不可检测的冰增长.
科学领域:
- 冷保存和生物物理学的研究.
- 热力学和材料科学 热力学和材料科学
背景情况:
- 在等离子条件下的玻璃化是一种新的冷保存技术.
- 由于复杂的物理现象,解释实验结果具有挑战性,特别是基于压力的冰检测.
研究的目的:
- 开发一种热力学模型来解释同位体玻璃化实验.
- 为了计算压力难以检测的冰形成的极限.
- 为了解同玻璃化提供一个框架.
主要方法:
- 开发了一种简化的热力学模型,包括热收缩,空洞形成,冰的生长,溶液成熟和玻璃形成.
- 评估了各种室内材料和溶液组合的模型.
- 根据有限的实验数据验证了模型.
主要成果:
- 确定了压力无法检测的冰形成的热力学极限.
- 揭示了反直觉的发现,例如低度的溶液可能会形成更难以检测的冰.
- 建立了一个现象学框架,用于评估异玻璃化.
结论:
- 该模型有助于解释异玻璃化实验,并了解所涉及的物理过程.
- 结果可以指导未来协议的设计,以尽量减少未被检测到的冰形成.
- 提供了一种热力学基础,用于对同位体玻璃化的多物理理解.
更多相关视频
07:48An Externally-Heated Diamond Anvil Cell for Synthesis and Single-Crystal Elasticity Determination of Ice-VII at High Pressure-Temperature Conditions
Published on: June 18, 2020
6.8K
09:32LabVIEW-operated Novel Nanoliter Osmometer for Ice Binding Protein Investigations
Published on: February 4, 2013
20.6K
相关概念视频
pV-Diagrams
4.1K
The pV diagram, which is a graph of pressure versus volume of the gas under study, is helpful in describing certain aspects of the substance. When the substance behaves like an ideal gas, the ideal gas equation describes the relationship between its pressure and volume. On a pV diagram, it is common to plot an isotherm, which is a curve showing p as a function of V with the number of molecules and the temperature fixed. Then, for an ideal gas, the product of the pressure of the gas and its...
4.1K
Phase Diagrams
40.6K
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...
40.6K