查询词典 relaxation

Femtosecond time-resolved studies using fluorescence depletion spectroscopy were performed on the vibrational relaxation; orientational relaxation and the intermolecular energy transfer of dye molecules in solutions under different conditions. The correlation of such ultrafast process with the system temperature and property of solvents is analyzed, which is useful for the further study about the ultrafast process of DNA, protein and other biological molecules, such as intra- and intermolecular electron, proton and energy transfer and photoisomerization.

本文的主要内容是利用飞秒时间分辨荧光亏蚀光谱探测技术对液相体系中的染料大分子在不同条件下的激发态振动弛豫、取向弛豫和分子间碰撞传能等超快动力学过程进行了研究，分析得到了这些超快过程与体系温度和溶剂性质之间的关系，同时为进一步研究DNA、蛋白质等生物分子体系的电子转移、质子转移、能量传递以及光致异构化等反应过程打下了基础。

In order to provide an overall understanding on the basic theory and previous researches of wood chemical rheology, the author discusses some respects on the basis of the common knowledge of deformation and flow, which served as the foundation of wood chemical rheology. These respects include the results by Stein and Tobolsky, such as the correlation between the change of polymolecular structure and stress relaxation, the classification of physical rheology and chemical rheology, the difference between the research on wood chemical rheology and other methods, as well as a kind of non\|continuous method to measure stress relaxation proposed by Tobolsky \%et al.

为了使国内木材科学界对木材的化学流变学的基础理论及其研究概况有一个比较全面的了解，作者在归纳了作为建立木材的化学流变学基础的、关于变形和流动一般理论的基础上，就Stein 和Tobolsky基于高分子构造变化与应力松弛之间的对应关系，关于物理流变学和化学流变学的分类，化学流变学研究与其他方法的不同之处，Tobolsky等关于不连续应力松弛测定方法等内容做了比较详细系统的介绍。

Dielectric measurements were carried out for polystyrene/polypyrrole composite membranes immersed in dilute aqueous electrolyte solution over a frequency range from 40 Hz to 11 MHz, some differential dielectric relaxation phenomena were observed: pure PS membrane and the PS membrane interfused with PPy showed different modes of dielectric spectra, one relaxation for pure PS membrane and two relaxations for the PS membrane interfused with PPy, respectively.

在40 Hz～11 MHz频率范围测量了聚苯乙烯膜以及混入聚吡咯粒子的聚苯乙烯膜和电解质溶液构成的体系的介电谱，发现了特异的弛豫现象：纯的和掺入导电性聚吡咯后的聚苯乙烯膜分别显示出单一弛豫和双弛豫的不同模式的介电谱。

The variation of size and amount of precipitates via the relaxation time agree with the curve of stress relaxation.

析出物大小和数量的变化同应力驰豫曲线有较好的对应关系。

OBJECTIVE: To compare the rheological properties of stress relaxation in normal and atherosclerotic animal model of ascending aorta, and to identify the effects of atherosclerosis on the stress relaxation properties of ascending aorta.

目的：比较正常和动脉粥样硬化动物模型升主动脉的应力松弛流变特性，确定动脉粥样硬化对升主动脉应力松弛特性的影响。

Stress relaxation of delignified and hemicellulose-removed wood was determined during periodic temperature change, and found that after 4-hour relaxation at 25℃ the stress curves hardly level off, at this time when increase temperature the stress immediately sharply fall and whereafter the decrease of temperature make stress rapidly recover again.

通过木材在温度周期变化过程中的应力松弛研究，发现，未处理木材和化学处理木材在25℃松弛4小时后，应力几乎水平下来，升温后，应力立即急剧下降，温度下降时，应力又急剧回复。

A large number of relaxation schemes for feature mapping, claimed to be invariant to transformation, have been reported. However, most of them can deal with transfor-mations involving only rotation and translation, but not scaling. To stay away from the issue of scaling, unrealistic assumptions have to be imposed, such as the conjectures that range data are available so that objects can be rescaled before mapping, and that object shapes are complete so that ratios between object shapes and prototypes can be figured out beforehand. In this paper, we propose a relaxation scheme which is able to be in-variant at a time to rotation, translation, as well as scaling.

截至目前为止已有不少供几何特徵匹配用之松弛法架构被提出来，这些架构虽然宣称可以对空间转移具有不变性，但是实际上，大部分只能处理和旋转及平移有关的转移，对於具有尺度因素的转换泽尽量避免，因此，便有各种不同的假设被加诸於所考虑的问题，例如假设我们已知景深值，因此可以先将物件的尺度正规化后再比对，或者假设物形式晚整的，於是物形和模型间的尺度比率事先可以推知。

This article gives an overview of the early development and recent progress of the study of grain boundary relaxation by Chinese scientists, ranging from, the invention of the torsion pendulum for internal friction measurement to the discovery of a critical temperature for the grain boundary relaxation.

后者包括澄清了关于晶界内耗峰来源的争论，揭示了晶界弛豫具有一个临界温度，从而提出了一个适合于各种温度的综合的晶界模型。

By means of a torsion balance apparatus with heat cabinet and steam, the torque twist relationship and torque relaxation of cashmere yarn in conditions of standard and steaming are measured and compared with wool yarn , and the effect of pre tension on the torque relaxation of cashmere yarn is investigated.

采用带有热箱、可通蒸气的扭转平衡型扭矩测定装置，对比测定、研究了羊绒、羊毛纱线在标准温、湿度及湿热条件下的扭矩—捻回数关系和扭矩松弛性能，并测试分析了预加张力对羊绒纱线扭矩松弛性能的影响。

This series included 35 male and 22 female, and the mean age was 34.6 years (range, 13– 66 years). The pathology included atlantoaxial instability in 52 patients (os odontoideum in 26 patients, transerse ligament relaxation or disruption in 20, odontoid fracture nonunion in 6), and irreducible atlantoaxial dislocation in 5 (os odontoideum in 1 patient, transerse ligament relaxation in 1, malunion of odontoid process fracture in 3). Twenty-four patients presented signs and symptoms of spinal cord and/or brain-stem dysfunction.

这个系列包括35个男性病人和22个女性病人，平均年龄是34.6岁（范围，13~66岁）。52个病人是寰枢椎不稳（26例os odontoideum、20个横韧带松弛或破裂、6例齿状突骨折不连），5例不可复位的寰枢椎关节脱位（1例os odontoideum，1例横韧带松弛，3例齿状突骨折连接不正）。24例有脊索和脑干功能不良的症状和体征。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失