相变点

The pressure-induced structural transition from the Zinc blende to a rocksalt phase occurs at about 12.6 GPa, and at the transition point the relative volume reduction is close to 13%.

发现样品在12.6GPa附近存在一个从立方闪锌矿型到立方岩盐矿型的结构相变，并且在相变点附近存在较大的体积收缩，相对体积变化率达13%。

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。

The stress-strain curves of Cu-Zn-Al alloys at different temperatures have been plotted on the tensile machine with the aid of electrometry. The main results were as follows: 1. When specimens were deformed within the range of M_s and M_d, the critical stress for inducing martensitic transformation increased with the temperature, and there existed a linear relationship between them. 2. When specimens were deformed above Af, complete pseudoelasticity might be obtained theoretically, which might be damaged, h...

在拉力试验机上用电测法测绘了Cu-Zn-Al合金在马氏体相变点上下各温度的σ-ε曲线，所得主要结果如下：(1)试样在M_s与M_d之间加载，随着温度升高，诱发马氏体相变所需临界应力增大，且加载温度与临界应力之间存在着线性关系；(2)在A_f点以上加载，理论上可获得完全的伪弹性，但加载温度过高或应变量过大，均会损害伪弹性；(3)试样在M_s点上下温度区域变形，得到的伪弹性回复和形状记忆回复之和在80%以上，但在M_s点附近总回复量出现一极小值，且伪弹性回复在M_f点以下又有所回升。

The formation of martensite is accomplished by the immigration of well-defined glissile interface (121)fcc type and its misfit dislocations can produce the lattice invariant deformation on the basis of phenomenal theory of martensitic crystallography, however, LID is retarded slightly after the migration of interphase (121)fcc, i.e.a thin plate-like zone exists without LID in martensite near the well-defined interface. When the temperature reduces to the Ms point, the lattice parameter of austenite matrix is √3/2 times that of the martensite without LID. This critical condition for spontaneous transformation agrees with that the stack fault energy in matrix is less than zero according to Olson and Cohen's nucleation model.

通过模型分析表明：fcc/bcc马氏体形核与长大过程是通过(121)fcc型择优界面推移进行的，界面上的错配位错可以完成马氏体晶体学唯象理论要求的点阵不变变形，但LID要稍滞后于界面迁移，即在马氏体形核与长大过程中推移界面新相一侧存在一未发生LID的新相薄区；当相变温度达到马氏体相变点Ms时，母相奥氏体与这一薄区的晶格常数比为√3/2，这一几何条件和Olson-Cohen形核模型中要求扩展位错层错区界面能γ≤0是等价的。

And block entropy, Renyi entropy,nonadditive entropy also grow with system size, derivative of logarithm of fidelity diverge at critical point.

Fibonacci量子伊辛链和均匀量子伊辛链一样，协作参量的导数在相变点的峰值随系统增大作对数发散；而无序量子伊辛链的协作参量的导数在相变点的峰值不随系统的增大而增大。

The simulation results show that there exists a phase transition from the free phrase to congested phrase on the regular network and the value of the phrase transition can be used to measure the capacity of network to deal with traffic flow.

结果显示，规则网络上交通流存在一个从自由相到拥塞相的相变。相变点的值可以用来衡量网络处理交通流的能力。

The article covers the full research on such aspects as mathematic description, numerical analysis method and their practical applications. The diphase heating surface is divided into a hot water section, a evaporation section and a micro overheat section , the problems of model switching are avoided successfully between subcritical and supercritical working condition in the model of The diphase heating surface, and the model can be used for between subcritical and supercritical working condition without causing the model stiff infinity prick up problem. The mathematical model and dynamic characteristic account is unified and predigested for the diphase heating surface of once—through boiler under subcritical and supercritical pressure, and propose that the working conditions at phase change point could be used as divide criterion between water region and steam region under supercritical pressure, the problems are solved successfully between water and steam phase change point under supercritical pressure.

本文在过程的数学描述、数值分析以及实际应用等方面进行了系统的研究分析，将双相受热面统一划分为热水段、蒸发段和微过热段三段，所建立的双相受热面模型不但成功地避免了超临界工况与亚临界工况间的模型切换，而且消除了由区段划分欠妥所引起的模型刚性无限加剧的问题，统一并简化了超临界及亚临界压力下直流锅炉双相区段的数学模型和动态特性计算，而且提出了利用相变点工况作为超临界压力下划分汽水区域的标准，解决了超临界压力下水与蒸汽的相变点问题。

Continued compression as far as 11.22GPa, the conductivity numeric increased rapidly and then meekly, which indicated the phase transformation pressure spot was 11GPa and the whole example was all rocksalt structural absolutely.

结果表明样品电导率在9.19GPa达到最小值，9.19GPa至11.22GPa电导率急剧增大，说明此时样品从纤锌矿结构向岩盐矿结构转变直至完全相变，11.22GPa为相变点。

It was found that the spectra contained two intense components and a weak one; the long lived component corresponds to the positronium.

配合时域介电谱方法用正电子湮没技术对硫酸三甘肽的铁电相变过程进行了测量，发现正电子寿命谱有两个较强的成份和一个很弱的成份，后者相应于正电子偶素，各分量在相变点附近很窄的温区出现奇异性质，对其起因作了解

Melamine formaldehyde resin was used to encapsulate a phase change material which melt point is 20℃ by in situ polymerization.

采用原位聚合法用三聚氰胺甲醛树脂包覆一种相变点为24℃相变材料A，制得相变储热微胶囊。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。