弛豫时间

正常生长软骨MR表现特征和横向弛豫时间测定实验研究

MR imaging characteristics and transverse relaxation time measurements in growth cartilage : experimental study

N2~+注入Si的折射率谱和弛豫时间

Refractive Index Spectrum of Implanted Si and Relaxation Time

正常成人肺脏MRI纵向弛豫时间的测量

MRI Measurement for Normal Adult Lung on Longitudinal Relaxation Time

特发性颞叶癫痫的MRI海马T2弛豫时间测量

Measurement of hippocampal T_2 relaxation time on MRI in idiopathic temporal lobe epilepsy

正常胎儿脑形态和髓鞘形成的MRI以及弛豫时间测量

MR Imaging of Brain Morphology and Myelination and Relaxation Time Measurement in Normal Fetuses

目的对正常成人肺脏MRI纵向弛豫时间进行测量研究。

Objective To study longitudinal relaxation time of lung in MRI for normal adult .

对多孔介质NMR实验弛豫时间分布的实现

Measurement of T_1 Relaxation Time and Its Distribution In Porous Media

NMR基于横向弛豫时间不同的选择性检测方法

NMR selective detection based on different transverse relaxation times

结果表明这些n型样品具有显著的紫外光响应，而且光响应弛豫时间也较短。

It was observed that these n-type samples have notable UV photoresponse and the relaxation time of the photoresponse is relatively short .

目的探讨T2弛豫时间在高分辨MR跟骨扫描中的价值。

Objective To discuss the value of high-resolution MR ( HR MR ) T2 relaxation time in calcaneus in osteoporosis .

自旋密度ρ、弛豫时间T1和T2定量磁共振成像

Quantitative magnetic resonance imaging of spin density ρ, relaxation times T1 and T2

从Maxwell串联模型定义的弛豫时间τ理解聚合物粘弹性的本质

Understanding the Nature of Viscoelasticity of Polymer based on Relaxation Time Defined from Maxwell Model

根据这个转动扩散模型，利用实验测定的自旋&晶格弛豫时间和溶液粘度计算了丙氨酸在不同pH值下的体积。

Using this rotational diffusion model , molecular volumes of alanine in different pH 's were then calculated from the observed spin-lattice relaxation times and solution viscosities .

SOA弛豫时间对FWM波长变换效率的影响

Effects of Relaxation Times on Wavelength Conversion Efficiency Based on Four-Wave Mixing in Semiconductor Optical Amplifier

实验监测了配体中不同位置的质子的NMR弛豫时间随空间距离及配体比例改变的变化情况。

NMR relaxation times of four protons at different positions versus steric effect and mixing proportion in ligand mixtures were monitored .

目的：探讨脑铁含量与T2弛豫时间的关系。

Purpose : To study correlation between brain iron content and T 2 relaxation time .

AX体系多量子弛豫时间的直接探测

Direct measurement of multiple quantum relaxation time in ax system

利用FID信号直接测量血细胞中水质子的NMR横向弛豫时间

Measurement of NMR transverse relaxation time of water protons in blood cells by using free induction decay signal

两组年龄与T2弛豫时间呈明显正相关，骨密度与T2弛豫时间呈明显负相关。

T2 value had positive correlation with age and negative correlation with bone density in both groups .

高能不等核碰撞和弛豫时间的Fokker-Planck方程描述

High Energy Unequal-nuclei Collisions and Relaxation Time in Fokker Planck Equation

对脑灰、白质的T1和T2弛豫时间进行了测量并对数据进行统计学分析。

T1 and T2 relaxation times of gray and white matter were measured and the data were statistically analyzed .

水分状态的测定使用自旋-晶格和自旋-自旋弛豫时间（T1和T2）。

The state of water was measured using spin-lattice and spin-spin relaxation times , or T1 and T2 respectively .

在p型材料的研究中，我们也预言了空穴自旋弛豫时间丰富的非单调温度、浓度依赖关系。

In the p-type case , we also predict rich nonmonotonic features in the temperature and density dependences of the hole spin relaxation time , which result from the variation of the hole-impurity and hole-phonon scattering strength .

同时报导了我们对孔雀绿（Malachitegreen）水溶液的纵向弛豫时间T1的实验测量结果。

The experiment result of the longitudinal relaxation time T_1 associated with the S_0-S_1 ele - ctronic transition of Malachite Green solution is also reported .

在德鲁特模型的介电函数基础上，对自由电子弛豫时间引入尺度修正，建立了金属粒子n、k值随波长和粒径变化的尺度效应模型。

We bring in size parameter into relaxation time of free electron on basis of Drude model , and build a metal particle n and k model which vary with size and wavelength .

结果表明：自由水和原油的核磁共振横向弛豫时间（T2）都随温度的升高而增大。

The results show that , the T2 relaxation time for bulk water and oil samples increase with increasing temperature .

因此理解内部磁场梯度对T2弛豫时间的影响是很有必要的。

Thus it is important to understand the effects of diffusion on T2 relaxation times due to internal field gradients .

MRI示损伤脑组织的T1、T2弛豫时间延长，可呈不均匀信号改变。

MRI demonstrated prolonged T 1 and T 2 relaxation time of the injured tissue , they might showed homogeneous or heterogeneous signal intensity .

具体结果包括：（1）应用~1HNMR化学位移和自旋-晶格弛豫时间实验技术对活化氧化铝与水的相互作用进行了研究，并拟合出了水的不同结合状态的自旋-晶格弛豫时间。

The results are : ( 1 ) The water-alumina interaction was studied using high-resolution 1H NMR . The spin-lattice relaxation times ( T1 ) were obtained .

论述了对核磁共振岩石样品NMR弛豫时间信号的数学处理方法，包括单指数拟合、双指数拟合以及多指数拟合方法，并且给出拟合优度对比。

Mathematical algorithms for NMR relaxation time of core samples including single exponent fittig , double exponent fitting and multi exponent fitting are elaborated in this paper .