临界温度

Firstly, the reactivity of benzaldehyde is studied utilizing the autoclave designed by us in near-critical water.

通过对苯甲醛在近临界水中反应后产物的分析检测认为，苯甲醛在有限的温度范围内微量的发生了Cannizzaro反应，并同时伴随有苯甲醛自身的羟醛缩合反应等其他副反应的发生。

It is well known that the properties of water in the critical region may show anomalies in many of its physical properties.

实验说明：地球内部流体性质由深到浅不断变化，如水的密度、介电常数等物理参数随温度压力而改变，在临界态出现突变。

In practice for different sizes of granules, there exists a critical preheating temperature.

事实上，对于不同尺寸的颗粒，都存在一个临界预热温度。

The critical shear stress unpinning the 60 dislocation from the ring-shaped hexagonal vacancy defect decreases as the temperature increases in the models, and approaches a stable value of 0.6GPa as the temperature is higher than 300K, bellow the misfit stress in common SiGe heterostructures, which indicates that the 60 dislocation can not be pinned by the ring-shaped hexagonal vacancy defects in this case.

模拟结果表明：使位错不被钉扎住的临界外加剪应力随着温度的上升而减小，在上述模型中当温度达到300K以上就稳定于0.6GPa附近，小于SiGe体系中的失配应力，说明空位缺陷不会成为60位错的钉扎点，仅会对其运动产生迟滞。

In this paper, The influence of heat set and dyeing on the structure of PTT fiber was investigated by FT-IR, DSC, critical dissolution time. The influence of heat set on the dyeability of PTT fiber was discussed, too. Meanwhile, many experiments on the dyeing performance of PET fiber were carried out. The effect of different dyeing temperature on the uptake and visual color depth value and dyeing characteristics of different dyes with temperature increasing were discussed, and the influence of temperature on the dyeing depth were also evaluated when dyeing for PTT and PET fiber in the same dye bath condition. Especially the kinetics and thermodynamics of dyeing with disperse dyes were mainly studied.

目前，我国对PTT染色性能方面研究报道还少，本文用傅立叶红外光谱、差热分析、临界溶解时间等分析方法研究了热定型和染色对PTT纤维结构的影响，探讨了热定型对PTT纤维可染性的影响，同时进行了多项PTT纤维的基本染色性能试验，探讨了不同染色温度对上染百分率及表观色深值的影响、不同染料的升温上染特性、不同染料的移染性能和染深性能以及PTT和PET纤维同浴染色时染色温度对它们的染色深度的影响。

The isothermal anneal at an elevated temperature of 1150℃ ramped up from a starting temperature （600-1000℃） was employed to enable the growth of the grown-in oxygen precipitates that are larger than the critical size at the starting temperature. Flourier transformation infrared spectroscopy and scanning infrared microscopy are used to measure the amount of precipitated oxygen and the oxygen precipitate density in a 300mm nitrogen-doped Czochralski silicon wafer, respectively.

文章摘要：采取从某一温度（600-1000℃）开始缓慢升温至高温（1150℃）并保温若干时间的方法，使得直拉si片中大于起始温度对应的氧沉淀临界尺寸的那一部分原生氧沉淀得以长大，然后通过傅里叶红外光谱测量氧浓度变化以及利用扫描红外显微术测量氧沉淀密度。

Near-critical water is a promising reaction medium for conducting the hydrolysis of nitriles without the addition of any additives.

亚氨基二乙腈在没有外加催化剂的近邻界水中可以顺利发生水解。实验测定了亚氨基二乙腈在近临界水中(压力10MPa，温度200~260℃，反应时间10~60min)的水解反应动力学数据并考察了时间、温度、压力和初始反应物/水比对反应物转化率和产物产率的影响。

By taking the effects of Ge fraction and strain on the energy band structure and effective masses into account, the analytical model of the effective densities of states of the conduction and valence bands are proposed, and the temperature and Ge fraction dependence of the effective densities of states are also studied. Following this, the temperature and Ge fraction dependence of intrinsic carrier concentration in strained SiGe layers are analytically calculated. Furthermore, carder freezeout effect and the minority carrier trapping effect of the shallow-level compensated imputities in strained SiGe layers at low temperatures are investigated.

其中，分析了应变SiGe层的临界厚度、能带结构、禁带宽度及禁带变窄模型；在考虑了Ge组份和应力对应变SiGe层能带结构的影响后，给出了较为精确的SiGe应变层的导带和价带有效状态密度的模型，并研究了有效状态密度与Ge组份及温度的变化关系；分析了应变SiGe层的本征载流子浓度及重掺杂下的禁带变窄；讨论了低温下应变SiGe层中的载流子冻析效应，并计算了SiGe应变层的电离杂质浓度与Ge组份及温度的关系；研究了应变SiGe层低温浅能级补偿杂质的陷阱效应；给出了应变SiGe层多数和少数载流子迁移率以及少数载流子寿命模型。

The surface activity and micelle behavior of the copolymers in aqueous solution were deterimned by surface tension methods.

在水溶液中，聚N-异丙基丙烯胺大分子随著温度升高会产生分子链的折叠，它的最低临界溶解温度为3236℃﹝4﹞，即在低于LCST时，它能完全溶解于水溶液中，而在LCST之上，则会产生沉淀。

Most attention is paid to discuss the influence of fiber volume fraction and fiber geometric ratio on them.

特别研究了不同温度条件下，纤维体积分数和几何尺寸对SMA复合材料在加载和卸载时的应力—应变响应的影响，以及对于SMA复合材料在不同温度条件下的相变临界应力的影响。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。