基于超高温启动的宏循环凝平台的热手术开关
Tianhao Wang1, Zhuoer Wang1, Pengyao Xing1
1School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China.
Macromolecular rapid communications
|June 3, 2024
概括
这项研究引入了一种用于高温奇拉光学切换的新型器官凝. 该材料展示了100°C以上的可逆切换,为先进的光学设备提供了新的可能性.
科学领域:
- 材料科学 材料科学 材料科学
- 超分子化学 超分子化学
- 光电学是指光电子产品.
背景情况:
- 响应性状光学材料对于传感和显示技术至关重要.
- 开发适应高温等恶劣条件的材料仍然是一个重大挑战.
研究的目的:
- 设计和演示一种能够在超高温度下进行热手术切换的器官凝.
- 探索β-环氧德克斯和聚合诱导发射光因子用于受控的性转移的使用.
主要方法:
- 使用β-环氧德克斯/二甲基胺/LiCl系统制造一个有机凝.
- 研究由温度变化引发的可逆溶液-凝过渡.
- 图形特征的特征,包括循环偏光的发光.
主要成果:
- 在100°C以上 (临界温度~130°C),有机凝表现出可逆的溶液-凝过渡.
- 从β-cyclodextrin转移到聚合诱导排放光因子的奇拉性转移是实现的.
- 经过控制的循环极化发光在高温下被证明是可以出现的.
结论:
- 成功开发了一种用于超高温热力手术切换的概念验证器官凝.
- 这项工作为设计适用于极端环境的先进光学材料铺平了道路.
相关概念视频
01:19Mechanism of heat transfer
Understanding heat transfer mechanisms is essential for understanding how our bodies maintain balance in different environmental conditions. When the environment is thermoneutral, the body is in a state of balance, neither using nor releasing energy to maintain its core temperature. However, when the environment is not thermoneutral, the body employs four heat transfer mechanisms to maintain homeostasis: conduction, convection, evaporation, and radiation. These mechanisms facilitate heat...
01:14Mechanisms of Heat Transfer I
Just as interesting as the effects of heat transfer on a system are the methods by which the heat transfer occur. Whenever there is a temperature difference, heat transfer occurs. It may occur rapidly, such as through a cooking pan, or slowly, such as through the walls of a picnic ice box. So many processes involve heat transfer that it is hard to imagine a situation where no heat transfer occurs. Yet, every heat transfer takes place by only three methods: conduction, convection, and radiation.
01:20Mechanisms of Heat Transfer II
In convection, thermal energy is carried by the large-scale flow of matter. Ocean currents and large-scale atmospheric circulation, which result from the buoyancy of warm air and water, transfer hot air from the tropics toward the poles and cold air from the poles toward the tropics. The Earth’s rotation interacts with those flows, causing the observed eastward flow of air in the temperate zones. Convection dominates heat transfer by air, and the amount of available space for the airflow...
01:10Heat Engines
A heat engine is a device used to extract heat from a source and then convert it into mechanical work used for various applications. For example, a steam engine on an old-style train can produce the work needed for driving the train.
Whenever we consider heat engines (and associated devices such as refrigerators and heat pumps), we do not use the standard sign convention for heat and work. For convenience, we assume that the symbols Qh, Qc, and W represent only the amounts of heat transferred...
Whenever we consider heat engines (and associated devices such as refrigerators and heat pumps), we do not use the standard sign convention for heat and work. For convenience, we assume that the symbols Qh, Qc, and W represent only the amounts of heat transferred...
01:22Switching of BJT
Switching behavior in Bipolar Junction Transistors (BJTs) is a fundamental aspect utilized in various electronic circuits, particularly for digital logic applications like switches and amplifiers. In a typical switching circuit, a BJT alternates between cut-off and saturation modes, corresponding to the "off" and "on" states, respectively, thus behaving like an ideal switch.
Cut-off Mode ("Off" State): In this state, both the emitter-base and collector-base junctions are reverse-biased. The...
Cut-off Mode ("Off" State): In this state, both the emitter-base and collector-base junctions are reverse-biased. The...
01:14Mechanisms of Heat Transfer
Heat transfer between the human body and its environment occurs through four main mechanisms: conduction, convection, radiation, and evaporation.
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant heat.
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant heat.