查询词典 phase transformation

The continuous cooling transformation curve was constructed chiefly by means of dilatometry,and combined with metallography to exact fix on the phase transition points of different cooling rate.

连续冷却转变曲线的建立主要应用膨胀法，并辅助以金相分析法来精确分析不同工艺条件下的相变点。

Development and application of software and hardware of open type cast iron thermal analysis of cast iron melt inspection have been reported with explanation of each module function of analysing and calculating chemical composition,as-cast mechanical properties and structural characteristics,solidification phase transformation heat,some thermal phisical parameters based on solidifying and cooling curve of samples.

报告了用于检测铁液熔炼质量状况的开放式铸铁热分析软、硬件系统的研制与应用情况，并系统地阐述了根据热分析试样的凝固冷却曲线实现对铁液化学成分、铸态下的力学性能和组织特征以及对凝固相变热和某些热物理量进行分析和计算的各子模块功能。

Based on the mathematical model of three phase PWM rectifier, and use average state method and coordinate transformation to simplify it.

建立了三相PWM高频整流器的数学模型，并利用平均状态空间法和坐标变换使模型简化。

In this paper,a design method of two dimensional Linear Phase Nearly Perfect Reconstruction filter banks based on a new class of cosine modulation systems is presented,which can be described as follow: firstly,the Parks-McClellan algorithm is adopted for designing the prototype filter,then by employing cosine modulation,a series of analysis and synthesis filters can be obtained,accordingly a one-dimensional LP-NPR filter banks can be constructed;Secondly,cascading two one-dimensional LP-NPR filter banks in the form of tree structure and using the unimodular transformation,a two dimensional nonseparable LP-NPR filter banks can be obtained.

提出了一种基于一类新余弦调制系统的二维线性相位-近似完全重构滤波器组的设计方法，设计过程分为两个步骤：首先采用Parks-McClellan算法来计原型滤波器，再经过余弦调制能到一系列的线性相位分析和综合滤波器，从而可以构造一维LP-NPR滤波器组；然后利用树状结构来结合两个一维LP-NPR滤波器组，并运用单位模变换，可以得到二维不可分离LP-NPR滤波器组。

Take full account of the new sections of road to airport planning and coordination, as far as possible around the power to avoid a number of important facilities and buildings, then the original starting point for North and South Airport Road, north along the river channel distribution, the end of Station Road in the South and水泊provincial highway 804 phase, line length of 1763 meters, the road净宽24.5 meters, two-way four-lane, according to a standard design the construction of the road;水泊transform large sections of Interchange Interchange ramp and a long range of 1000 meters of the 804 provincial highway, the section of the transformation works for Covering 44,000 square meters of the road.

新建路段充分考虑路线走向与机场规划的协调，尽量绕避一些重要的电力设施和建筑物，起点接原机场南北路，向北沿河道展布，终点在大水泊公路站南与804省道相接，线路总长1763米，路面净宽24.5米，双向四车道，按一级路标准设计建造；改造路段为大水泊互通立交匝道和立交范围内长1000米的804省道，该路段改造工程为44000平方米的路面罩面。

At first, preprocessing with the image pyramid and diffusion-filtering technology; then abstracting the boundary-outline information; carrying on the logarithmic coordinate transformation of the abstracted boundary-outline information to get bar chart of the logarithmic coordinate; calculating the value of Cs to get all the phase match points; calculating the value of the degree of approximation to judge the shape matching.

本发明涉及一种基于Shape Context的人脸形状匹配方法，首先采用图像金字塔及扩散滤波技术进行预处理；再利用Canny边缘检测算法和轮廓提取算法提取边界轮廓信息；对提取的边界信息进行对数极坐标变换，得到对数极坐标直方图；通过计算Cs值，获得所有相匹配点；计算相近似度值，进行形状匹配判断。

Based on the average lattice and average atom models, effects of interstitial impurities on the valence electron structures and phase transformation of Ti-Al alloys are analyzed, and the degree of descension of bond energy, melting point and liquidus temperatures as affected by interstitial impurities are calculated by the bond energy formula of the EET.

应用固体与分子经验电子理论的平均晶胞和平均原子模型分析计算了间隙杂质对Ti-Al合金价电子结构和相变的影响。同时根据该理论的键能公式计算了间隙杂质影响下的键能、熔点和液相线的变化。

To β-Si3N4 transformation and β′-Si3N4 grain growth as well as the devitrification and crystallization of amorphous phase may induce the fiber reinforcing effect, which affects the flow behavior of superplasticity for Si3N4 ceramics.

在Si3N4和Sialon陶瓷的超塑性变形中，α→β-Si3N4的相变以及β-Si3N4的长大和晶界玻璃相的析晶引起的纤维强化，将影响Si3N4陶瓷超塑性的流变特性。

Also we use the time-dependent SU (2) gauge transformation to diagonalize the Hamilton operator, obtain the berry phase and analytically the time-evolution operator. The particle number difference of species A between the two wells is studied analytically.

此外我们还研究了在双阱玻色-爱因斯坦凝聚中纠缠态的演化，研究发现随着组分间相互作用和随穿率的比值的增加系统演化到Bell态的概率变大，而且组分自身内在的相互作用对形成Bell态的几率没有影响；并且用含时Su（2）规范变换对角化哈密顿量得到了系统的Berry位相和时间演化算符，并研究了量子随穿过程。

The phase transformation and micrographs were studied using X-ray diffractometer and scanning electron microscope.

利用X射线衍射仪和扫描电镜分析其相变和显微形貌。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。