Results 31 to 40 of about 3,981,760 (167)
四川大学学报. 自然科学版, 1998 根据几类可逆反应通用的微分动力学方程和热动力学的基础理论，建立了几类可逆反应通用的线性拟合法．应用该法，研究了硝基乙烷分别与氨和Ｔｒｉｓ反应的热动力学．实验结果验证了该法的正确性．
向清祥 +3 more
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Si Alloying Enables High Performance in Ce‐Substituted Hot‐Deformed Nd–Fe–B Magnets
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT High levels of Ce substitution typically degrade the magnetic performance of hot‐deformed Nd–Fe–B magnets, posing challenges for developing resource‐efficient permanent magnets. Here, we demonstrate that minor Si alloying in (Nd0.6Ce0.4)‐Fe‐B hot‐deformed magnets effectively compensates for this degradation and enables enhanced magnetic ...
Feifei Li +6 more
wiley +1 more source
四川大学学报. 自然科学版, 2000 应用极端条件下细菌生长的热动力学模型 ,用微量量热法研究嗜热菌、嗜冷菌的热动力学性质 ,分别测量了嗜热菌、嗜冷菌在不同温度下的生长热谱曲线 ,求出了细菌生长的动力学参数与活化态的活化参数 ,并通过计算机多元回归分析 ,得到了细菌生长的最佳生长温度及生长温度范围 ...
相艳, 南照东, 曾宪诚, 张洪林
doaj
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Composite materials hold significant potential for abrasive sealing, yet composite materials used for abrasive sealing fall short in service durability under extreme environments. Here, a controllable strategy for adjusting pore structure is proposed, aiming to design a YSZ(ESP)/BN@ZrO2‐polyester coating with hybrid micron/nanometer ...
Shuang Yu +8 more
wiley +1 more source
, 2012 >纳米材料为什么会生长和如何生长?非平衡生长过程反应、单体形成、成核生长、晶体长大、形貌结构演变的热动力学特征和规律如何?纳米材料生长动力学决定的尺寸形貌结构效应如何?是纳米材料可控制备迫切需要解决的重要科学问题;采用何种科学的方法获取纳米材料的热容 ...
王路得 +6 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Thermo‐responsive hydrogels based on poly(N‐isopropylacrylamide) (PNIPAM) are promising candidates for soft actuation, yet their practical applications are often constrained by sluggish thermo‐responsive kinetics and insufficient mechanical robustness.
Hui Liu +5 more
wiley +1 more source
, 2014 1、光-微量热计的研发及光催化应用光催化产氢和光催化有机合成是当今化学和材料学科领域的科技前沿(汤森路透2013报告)。中科院理化所和大连化物所分别在模拟光酶产氢和人工光催化产氢研究取得重大突破,光催化实现了热催化无法实现的有机合成反应(Science,2013,339:1593-1596)。我们在国内率先设计研发了用于光催化的光-微热量系统,获取光催化原位过程的热力学和热动力学信息 ...
朱之轮 +3 more
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四川大学学报. 自然科学版, 2001 以聚苯酯工业产品为原料 ,使用DSC ,TMA和TG等热分析手段 ,研究了该材料的热转变行为和热分解过程 ,计算了热分解反应的动力学参数 ,并根据动力学参数 ...
杨争, 于佩潜, 谢美菊, 余自力
doaj
Gaoya dianqi, 2021 自能式SF6断路器单向阀、回气阀和泄压阀的运动与气流场之间存在着复杂的相互作用。基于3个阀的实际运动规律,利用牛顿第二定律,建立阀连续运动的数学模型,同时基于二维轴对称电弧磁流体动力学（MHD）模型并结合真实气体物性参数,对自能式SF6断路器在大电流燃弧阶段的气流场及阀的连续运动进行仿真分析。研究表明:电弧燃烧产生的热气回流是热膨胀室内产生高压和单向阀关闭的主要原因;不同监测点上气体压力变化与燃弧电流、静弧触头位置和阀所处状态密切相关;单向阀的动作受燃弧电流和热膨胀室压力大小影响 ...
赵伟涛 +4 more
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The Structural Origin of the Amorphous‐to‐Crystalline Transformation in Cu‐Zr Based Amorphous Alloy
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Amorphous alloys (AAs) possess a metastable structure from a thermodynamic perspective and tend to crystallize under external conditions, which in turn alters their material properties. To gain an in‐depth understanding of their crystallization mechanism, this study employed in situ spherical aberration‐corrected transmission electron ...
Yajie Huang +4 more
wiley +1 more source