as for its definition, ecological risk assessment is the assessment for the risk of the ecosystem or its components get.

niche theory and entropy change value were applied to analyse ecosystem components of citrus orchards.

应用生态位及熵变值分析了柑桔园系统内某些物种之间的关系。

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surgical treatment of lacteal fistula

乳管瘘的外科治疗

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the variation laws of mean drift velocity, mobility as well as electronic energy with electrical field are obtained respectively. also, the variation laws of electronic energy relaxation time and momentum relaxation time with electrical field are obtained respectively.

得出了电子的平均漂移速度、迁移率和电子能量随电场的变化规律，及电子的能量、动量弛豫时间随电场的变化规律。

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moreover, the complexes of this kind are ideal objects for studying the processes of intermolecular energy transference, vibrational relaxation and predissociation which are the bases for studying macroscopic phenomena.

并且，范德华复合物是研究分子间能量转移、振动驰豫和振动预解离等过程的理想物质。

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high energy unequal-nuclei collisions and relaxation time in fokker planck equation

高能不等核碰撞和弛豫时间的Fokker-Planck方程描述

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the activation energy of the boundary relaxation and the specific relaxation time of the ceramics have been measured.

测量了晶界弛豫激活能的大小和不同温度下该材料的特征弛豫时间。

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the excitation energy spectrum of the relaxation is estimated.

估计了弛豫过程的激活能谱。

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a reaction mechanism of laser stimulated n-butane cracking on the solid surfaces and a model of energy transfer and relaxation in such a process are proposed based on the experimental results.

证实了固体表面键激发模式的有效性，探讨了激光表面反应过程中能量吸收、积累、传递和损失的途径，提出了激光促进丁烷裂解的表面反应机理。

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a reaction mechanism of laser-stimulated n-butanol cracking and a model of energy transfer and relaxation in such a process are proposed based on the experimental results.

根据实验结果，探讨了激光促进丁醇裂解反应过程的能量传递规律，提出了激光促进丁醇裂解表面反应机理。

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three kinds of dried wood and control wood differed in the dynamic stiffness properties, the loss peak temperatures, the loss peak density and the apparent activation energy of relaxation processes.

不同干燥材之间以及干燥材与对照材之间的动态刚度性质、力学损耗峰温度、力学损耗峰强度以及力学松弛过程的表观活化能均存在明显差异。

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the apparent activation energy of relaxation process at higher temperature location showed a higher value than that at lower temperature location. 4.

松弛转变行为出现的温度越高，其表观活化能值越大。

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analysis of strain energy and relaxation degree in different-shaped quantum dots using finite element method

有限元法分析不同形状量子点的应变能及弛豫度变化

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in this paper, we investigate the relationships between the rates of vibrational-translational energy relaxation and the molecular dissociation energy, density and temperature for diatomic molecular in condensed state by the computer simulation with molecular dynamical method.

本文利用分子动力学计算机模拟方法，研究了稠密态双原子分子振动-平动弛豫速率与分子离解能、密度和温度的关系。

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an analytical expression of elastic strain energy relaxation in nanostructures of different isotropic geometries grown on lattice mismatched substrates is obtained. the results are derived from large aspect ratio condition.

首次用解析的方法推导出在大高宽比和失配生长条件下不同形状纳米结构的弹性应变能弛豫函数。

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momentum and energy relaxation, carrier-carrier scattering, intervalley and intravalley scattering, optical phonon scattering and carrier diffusion have been investigated extensively.

动量和能量驰豫，载流子－载流子散射，谷间和谷内散射，光学声子散射，载流子扩散等机制都已被广泛研究。

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it is presented that one of the most important energy relaxation processes is the electron-phonon interaction, which determines the energy transfer from electronic carrier system to the lattice.

指出能量转换特性的最重要的弛豫过程是电子-声子相互作用，决定了由电子载流子系统到晶格的能量转换。

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energy relaxation processes initiated by suddenly heating of the vibrational degrees of freedom were studied with molecular dynamical method.

用分子动力学方法研究瞬时加热振动自由度后的能量弛豫过程。

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vibrational energy relaxation in condensed phases is an important dynamical process in chemistry, physics and biology.

摘要凝聚相中的振动能量弛豫是化学、物理学和生物学中一个非常重要的动力学过程。

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the kinetic curve of the signal was studied. the energy relaxation way and quantum beat were analysed.

我们观察了瞬态光栅光谱信号峰处的动力学曲线，并分析了能量弛豫途径及量子拍频来源。

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performance rating model of logistics enterprises based on ahp

基于层次分析法的物流企业绩效评分模型

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