查询词典 compression coupling

It is widely concerned in fatigue of concrete structures. In this paper, concrete triaxial compression fatigue experiments and tension-compression fatigue experiments with constant confinements in two lateral directions have been carried out using a self-modified loading apparatus. Based on the analysis of the test data, the quantitative principles of concrete fatigue deformation and the calculation method of fatigue strength are determined.

混凝土结构的疲劳是一个广为关注的问题，本文针对这一问题结合国家自然科学基金项目——混凝土多轴变幅疲劳破坏准则(50078010)的研究，利用自制的试验加载装置完成了两向定侧压约束下混凝土三轴受压、三轴拉-压等幅和变幅疲劳试验，对试验结果进行了分析。

The results obtained from finite analyses indicate, under assured weld quality, the effect of ratio of axial compression stress to strength is relative better to moment-resistant bearing capacity of column joint, the ratio of axial compression stress to strength is bigger, the moment-resistant bearing capacity of column joint is bigger, earthquake resistant capacity is better

结果分析表明：在保证焊接质量的前提下，轴压比对节点柱的抗弯承载力影响较大，轴压比越大，抗弯承载力越大，节点的抗震性能越好。

Filters include cropping, scaling, vertical flipping, horizontal mirroring, expanding to create letterboxes, rotating, brightness/contrast, changing the aspect ratio of the video's pixels, colorspace conversion, hue/saturation, color-specific gamma correction, filters for reducing the visibiltiy of compression artifacts caused by MPEG compression, automatic brightness/contrast enhancement, sharpness/blur, denoising filters, and several different ways of deinterlacing.

滤镜包括剪裁，缩放，垂直翻转；均衡器，拓展到创建字元框，旋转，亮度/对比度，改变视频横纵比；颜色空间转换，色调/饱和度，色彩特定伽马校正器；有的滤镜是为减少MPEG压缩处理造成的清晰度下降（去块， deringing ），自动亮度/对比度增强，锐利/模糊，去噪滤波器，和几个不同的扫描方式。

Filters include cropping, scaling, vertical flipping, horizontal mirroring, expanding to create letterboxes, rotating, brightness/contrast, changing the aspect ratio of the video's pixels, colorspace conversion, hue/saturation, color-specific gamma correction, filters for reducing the visibiltiy of compression artifacts caused by MPEG compression, automatic brightness/contrast enhancement, sharpness/blur, denoising filters, and several different ways of deinterlacing.

滤镜包括剪裁，缩放，垂直翻转；均衡器，拓展到创建字符框，旋转，亮度/对比度，改变视频横纵比；颜色空间转换，色调/饱和度，色彩特定伽马校正器；有的滤镜是为减少MPEG压缩处理造成的清晰度下降（去块， deringing ），自动亮度/对比度增强，锐利/模糊，去噪滤波器，和几个不同的扫描方式。

At present, the dominating new standards used for HDTV video compression are H.264/AVC and AVS, both of them adopt block-based integer transform, quantisation and block-based motion compesation, which will be the source of blocking artifacts and will reduce the subjective video quality and compression performace.

在现阶段，用于HDTV视频压缩编码的最新标准主要有H.264/AVC和AVS，它们都采用基于块的整数变换、量化和运动补偿技术，不可避免的会引入块效应，严重影响了图像的主观质量和编码效率。

In fact, it is probable that little gain can be made by selecting a geometric compression ratio which would raise the gas temperature by adiabatic compression behind the temperature of the hot zones (except for accelerated heating by gas density and proximity effect, which would make it possible to achieve higher RPM).

事实上，它很可能使小增益可以作出选择几何压缩比率，从而将提高的效果，气体温度接近后面的绝热压缩气体密度和温度的热区（除加速它加热能够达到更高的转速）。

The efficiency of the Carnot cycle increases with the compression ratio—the ratio of gas volume at full expansion to its volume at full compression.

在与压缩比，在充分膨胀比的天然气量在全压缩到其批量卡诺循环提高了效率。

In order to help for evaluating properties of soil in interaction more precisely, the paper applies elastic theory solution on different modulus in tension and compression for vertical load into semi-infinite elastic body. Through quoting Heaviside function, the solution of elasticity theory with different modulus in tension and compression is established founded on the solution of elasticity theory for the material incapable in tension and Mindlinsolution for equal modulus.

为使地基土在共同作用中的行为特征评价更为合理，本文应用了半空间问题竖向荷载下地基土的拉压模量不同弹性理论解，该理论解是通过引入Heaviside函数，利用不能承受拉应力材料的弹性理论解并结合拉压模量相等的经典Mindlin解而获得。

The main factors affecting the soil-structure interface behaviors were found experimentally and theoretically, including: 1 the thickness of the interface that is five to six times the average grain size of the soil; 2 the aeolotropy of interface, which is responsible for anisotropic response of the stress-strain response of the interface; 3 two physical states, including crashing and compression of the soil near the structure surface, which govern the stress-strain response of the interface strongly; 4 two shear deformation components due to sliding and constraint of the structure surface relative to the soil respectively, which forms the deformation of the interface; 5 the volumetric strain due to dilatancy, which is found to be composed of a reversible dilatancy component and an irreversible dilatancy component. 4. A unified constitutive model of the interface, based on new elasto-plasticity damage theory, was developed. It was confirmed to be effective for the conditions considering monotonic and cyclic shearing, coupling effect of shear and volumetric strains, evolution of physical state, micro-structure aeolotropy of the soil and the resulting aeolotropy of the interface as well as the three normal boundary conditions stated above. 5. 2D and 3D finite element formulations of the present model were derived and incorporated into the FEM codes. They were applied to the evaluation of practical engineering problems with different typical interfaces between soil and structure. The new model was shown to be reasonable and effective.

确定了粗粒土与结构接触面厚度约为5～6倍的平均粒径，首次揭示了接触面的细观结构异向性以及由此所引起的宏观剪切异向性，发现了在单调和往返剪切荷载作用下土颗粒破碎和剪切压密两种物态变化机制共同支配着接触面力学性质的变化，通过细观分析证实了接触面的变形可分解为一般同时发生的土与结构交界面上的滑移变形以及结构面位移约束范围之内土体本身的剪切变形两部分，观测到接触面受剪时表现出明显的相对法向位移，并可分解为可逆性和不可逆性两个分量；(4)建立了第一个能够统一地描述单调与往返剪切特性、剪应变与体应变耦合特性、细观结构和宏观剪切异向性以及土颗粒破碎等物态变化特性的土与结构接触面弹塑性损伤本构数学模型，并采用多种法向边界条件复杂加载路径的试验成果验证了新模型的合理性和有效性；(5)提出了新模型的二、三维有限元格式并结合实际边值问题进行了应用计算分析，比较了不同接触面本构模型对计算结果的影响，证实了新模型及其有限元格式不仅能够合理地描述土与结构接触面的主要力学特性，还能够较好地反映土体与结构物在接触面处的滑移、脱开等不连续现象。

Slide end of tube into compression coupling in float chamber.

将管道末端滑进浮子腔内的压紧联轴节内。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。