查询词典 phase

Linear solvation energy relation was firstly introduced in the paper, and the method and step of gaining the special parameters of solvent and solute were introduced in detail, and these special parameters were used to selection and optimization of extractive agent in extractive distillation. The model of predicting activity coefficient at infinite dilution was established by linear solvation energy relation. By the above theory, several candidate solvents were selected to separate C5 fraction, and by experiment of vapor-liquid phase equilibrium at atmosphere pressure, the mixture of N-methyl-pyrrolidone including 4% water was used extractive agent of separating C5 fraction. Then binary vapor-liquid phase equilibrium of the some compound in C5 fraction and N-methyl-pyrolidone were determined at atmosphere pressure and correlated by NRTL equation. Isoprene being objective compound, experiments were operated in the laboratory-scale column; the processes were simulated by RadFrac model in ASPEN PLUS. And by the combination of experiment and simulation, the new process of separation of C5 was established.

本文首先对线性溶剂化能关系进行了分析介绍，也介绍了采用溶剂化能关系得到溶质溶剂特性参数的方法步骤，并将这些参数用于萃取精馏萃取剂的选择与优化；也通过线性溶剂化能关系式建立无限稀释活度系数预测模型，取得了一定的预测精度；将通过上述方法初选的溶剂进行了常压汽液平衡的测定研究，通过实验研究选定含水4%的N-甲基吡咯烷酮溶液做为C5分离的萃取剂，测定了大量N-甲基吡咯烷酮与C5组分的二元平衡数据，并进行关联计算；以异戊二烯为目标产物在实验室规模的精馏塔内进行了C5分离的实验研究，取得大量塔内数据；通过选用合适的热力学模型，采用ASPEN中RadFrac模块对分离过程进行模拟研究，通过实验与模拟相结合，建立了C5分离的新工艺，为将来的工业化打下了坚实的基础。

Digital PLL's linear mathematical model is established, and it's stability is analyzed, then the DPLL's stability conditional expression is given. Whereas the phase lock in UPS is very particular, this dissertation emphasizes on the dynamic performance with disturbance of the utility source's frequency noise and the reference phase.

基于UPS 锁相的特殊性，着重分析了市电频率扰动以及相位给定突变时的系统动态特性，仿真分析表明在同一个数字锁相环中，锁相误差抖动小与输出频率变化不能过快，二者不可兼得。

The results indicate that there are 8 stable conformers for D4G in gas phase. The conformer d4g-2 is the most stable form of all conformations in gas phase.

结果表明，孤立的D4G分子在气相中存在8种稳定构象，其中构象d4g-2是所有构象中最稳定的，气相中D4G主要以d4g-2存在。

After verifying the importance and stability of phase information in image processing, the thesis studies on phase congruency function.

其次，论文对基于图像相位信息的边缘检测算法—相位一致性算法进行了分析研究。

First, we extract the illuminance invariant feature using the phase-only reconstruction and the phase congruency analysis.

该方法首先利用单纯相位谱重构和相位一致性分析实现光照不变特征提取，然后利用PCA方法实现人脸图像的降维表示，降低识别所需的计算量。

The definition of phase congruency does not provide good localization as this function only varies with the cosine of phase deviation.

在新的定义式中，引入了噪声补偿因子，频率扩展加权函数，对相位偏差引入了修正部分。

The test results showed that the amount of this kind of function material to conjugate proteins were larger than 1.5ig/mm2and its one time adsorption rate was larger than 80% and can satisfy the requirements for solid-phase radioimmunoassay. Test results showed that this polymer-NHS-ester can connect with proteins through covalent bounds under mild conditions This technical method will supply a type of new material for solid-phase radioimmunoassay.

实验证实，这类聚合物NHS酯可在温和条件下与蛋白反应，使蛋白以共价键结合方式固定在聚合物上，这种功能材料对蛋白的结合量大于1.5μ／mm~2，对蛋白的一次吸附率大于80％，能满足固相放免分析的要求，将为固相放免分析提供一种新材料。

By establishing MINLP model, the computation of phase equilibrium is transformed into a constrained two-level minimization problem. On the inner level, equilibrium composition is computed; On the outer level, the optimum phase combination configuration is searched for. The whole solving process is achieved by Genetic Algorithm.

通过建立MINLP模型，将相平衡计算问题转化为有约束的双层最优化问题，内层用来计算给定相组合结构下的平衡组成，外层则是搜索最优的相组合结构，整个求解过程通过遗传算法来实现。

The phase-changing material supplies heat for indoor heating by heat conduction upwards and convection current, meanwhile heat supply of the phase-changing material is adjusted by air duct and indoor aeration speed, which further regulates and controls heat supply speed.

相变材料通过向上导热和对流为室内供暖提供基础供暖量，同时通过调控空气通道与室内的换气速率来调整相变材料的供暖量，起到进一步调控供暖速率的作用。

To some extent, the nucleate boiling and the two-phase forced convective heat transfer through the liquid film always co-exist in the saturated nucleate boiling zone and two-phase forced convection zone. The liquid fill-ratio, input power and content of the non-condensable gas exert significant influence upon the start-up performance and the heat transfer performance of LHP.

并且在饱和核态沸腾区与两相强制对流区内，总是在某种程度上同时发生着核态沸腾区与两相强制对流液膜传热；充液量、输入功率及其不凝性气体的含量对回路热管的起动性能和传热性能部有很大的影响。

I think people in this lifetime in a rebirth.

我觉得人在这一生里其实也在轮回。

He had to tie her hands together.

他不得不把她的双手绑在一起。