查询词典 thermal

Aiming at the laigh thermal conductivity of magnetic refrigerant materials,this paper presents a new technical scheme named vacuum diffusion bonding,which can improve its thermal conductivity.

针对室温磁制冷材料Gd本身导热系数低特点，提出了采用真空扩散焊方法改善Gd导热性能的成型工艺方案，在温度为550~620℃，压强为12~20Mpa，保温时间为30~120min条件下，实现了钆和铜异种材料连接，并比较了在钆基体上溅射一层铜薄膜和不溅射薄膜两种条件下的工艺性能。

The distribution of microhardness is not uniform across the anodic film for the most specimens and the general trend is that the value of the hardness is higher both in the outer film adjacent to the surface and in the inner film near the interface between film and substrate for the specimens with type Ⅱ and type Ⅲ anodizing technology. The measured modulus for anodic film with type Ⅲ anodized is 80.77Gpa. The thermal expansion coefficients of anodic films are measured by two different methods based on X-ray diffraction technique. One way is to detect the lattice spacing change of crystalline phase in powder specimen of anodic film as the increment of temperature by powders of anodic film; and the other way is to determine the thermal stress by entire specimen, that is, the anodic film and the substrate attached together.

利用X射线衍射的方法采用两种不同手段对氧化膜的热膨胀系数进行测试，一种方法为采用氧化膜粉末样品，测量温度变化过程中晶面面间距的改变，进而推出其热膨胀系数；另一种方法为整体试样测试氧化膜中的热应力，通过热应力和热膨胀系数之间的关系计算氧化膜的热膨胀系数。

Alpha lead azide ; thermal initiation ; reaction in solid ; thermal explosion reaction

α-叠氮化铅；热起爆；固相反应；热爆炸反应

In this study,Polyrhachis vicina was acclimated at 15,20,25 and 30 ℃ under a 14 L∶10 D dark-light cycle for 2 weeks,aiming to evaluate its thermal adaptation,and the thermal dependence of its locomotor performance.

将鼎突多刺蚁分别置于15、20、25和30℃的恒温恒湿培养箱内，对其热适应及运动行为的热依赖性进行了研究。

In this thesis, the completely literature review has been made on urban macroclimate and micro-thermal climate research, the past research results of thermal comfort has been summarized.

本文介绍了国内外城市大气候研究和城市微热气候研究的发展、现状，总结了这方面的研究成果。

The paper described general structure of the thermal manikin and the main structure of the thermal manikin 's temperature control system.

简述了干性暖体假人系统的构成以及干性暖体假人控制系统的大体结构。

Perspiring thermal manikin is proved to be an effective approach to evaluating heat and moisture transmission performance in the study of clothing thermal comfort.

应用出汗暖体假人来测量服装的热湿传递性能是服装热舒适性研究的重要手段。

Based on the thermal equilibrium principle and analysis of related factors, the heat production rate of thermal manikin is recommended as an efficient evaluation index.

通过对暖体假人热平衡原理的阐述及散热影响因素的分析，提出产热率可作为评价暖体假人性能的一个综合指标，而由假人内部与表层温度差产生的内部热损失率是假人总体散热率中不可忽略的一部分。

A novel perspiration imitation thermal manikin is developed to measure the thermal resistance and moisture vapor resistance of fabrics.

新型织物模拟的暖体出汗假人能够测试服装的热阻和湿阻，传统平板式织物保暖仪可以测试各种纺织品热传递性能。

After comparing with the thermal conductivity under two different conditions, the thermal conductivity with vacancy is lower than that with Kr, which accounts for phonon scattering on impurities due to lattice strain is stronger than that due to differences in mass between the defect and the surrounding matrix.

模拟结果显示，温度在20~80K之间，考虑热膨胀时的导热系数比晶格常数固定时的值要低，但随温度变化的关系更加接近实验值时的情况；比较固体氩中不同掺杂时导热系数大小，发现同样掺杂浓度条件下，掺空穴时材料导热系数比掺氪时低，说明掺杂时由于晶格不匹配引起的声子散射比不同质量引起的散射更重要。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。