optimal control of stretching process of solar arrays on spacecraft using genetic algorithm

ethanol, glycol, acetone, water and the mixture of acetone and water are employed as coagulating bathes, the optimum coagulating bath is confirmed by comparing the strength of resultant fibers.

采用乙醇、乙二醇、丙酮、水及其混合液作为凝固浴进行纺丝，通过对制得纤维的性能比较，确定了最佳凝固浴。

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the effects of resin type, temperature and dimethyl formamide ( dmf) contents in the coagulating bath, resin and filler contents in the coating solution, drying temperature in the baking oven on the properties 4| of the pu synthetic leather are discussed.

重点讨论了树脂种类、凝固槽温度和二甲基甲酰胺（DMF）浓度、涂布液中树脂和填充剂含量、烘箱的干燥温度等主要因素对PU人造革性能的影响。

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within mass fraction in coagulating bath of 10%~ 40%, as the mass fraction increases, the water flux of pes hollow fiber membrane first decreases, then increases and the degree of orientation first increases, then decreases;

结果表明：在凝固浴质量分数10%～40%的范围内，中空纤维膜的水通量先减少再增加；中空纤维的取向度则先增大后减小；

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about the effect of the type of spinning machine, the composition of coagulating bath and tanning bath as well as the spinning technological parameters on the strands strength, therefor, the relatively detailed discussion has been made.

因此，围绕着纺丝机的型式，凝固浴和鞣制浴的组成，以及纺丝工艺参数对丝强度的影响进行了较详尽的论述。

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the results show that spinning and fiber properties are influenced by the concentration of the solvent in the coagulating bath and the temperature of the coagulating bath.

结果表明：凝固浴中溶剂浓度对纺丝过程及纤维强度有重要影响，而凝固浴温度对纤维的影响相对较小；

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after the filaments are precipitated in the coagulating bath, the cellulose molecules may come out of the solution headed in any direction.

长丝在纺丝浴中凝固后，纤维素的分子会从溶液中析出。它们朝着不同的方向。

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influence of mass fraction in coagulating bath on structure and performance of pes hollow fiber membrane

凝固浴质量分数对聚醚砜中空纤维膜结构和性能的影响

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the experimental results indicated that low temperature of casting solution and coagulation bath, short evaporation time and low polymer concentration of casting solution tend to increase the effective porosity of membrane.

实验结果表明较低的铸膜液温度和凝胶浴温度、较短的蒸发时间和较低聚合物浓度有利于增加膜的有效孔隙率。

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sulfuric acid, ammonium chloride, sodium hydroxide and ethanol were selected as coagulation bath under different coagulation temperature and coagulation time to manufacture hec membranes.

分别选取硫酸、氯化钕、氢氧化钠和乙醇等溶剂作为凝固浴，在不同凝固温度和凝固时间下凝固制备HEC膜。

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in this thesis, we considered the theory of infinite dimensional stochastic evolution systems and its applications in modelling of formation mechanism in coagulation bath of carbon fiber precursor.

本论文致力于研究无穷维随机发展系统理论及其在碳纤维凝固浴成形机理中的应用。

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it was noted that when coagulation bath temperature was increased, crystallization could be suppressed, and more porous structure was obtained on the surface of the membrane.

另外，凝胶浴温度升高可以抑制结晶现象，并使膜表面孔径和孔密度增加。

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the structure of membrane is compact when the coagulation bath temperature is below 10 ℃, but the structure of it is loose with the coagulation bath temperature increasing;

结果发现，凝固浴温度低于10℃时，膜结构致密；随着浴温的逐步升高，膜结构变得疏松；

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the retention rates of albumin bovine decreases when coagulation bath temperature increases, and first decreases, then increases when pre-evaporation time prolongs.

对牛血清白蛋白的截留率随着凝固浴温度的上升而下降，随着预蒸发时间的延长先略有下降然后上升。

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lifting the temperature of coagulation bath caused the decreasing of the inner and outer diameter and increasing of the maximum pore size and pure water flux.

改变凝固浴温度发现，凝固浴温度的升高会减小膜的内、外径尺寸，水通量和最大孔径增大。

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the pore size was decreased firstly and then increased, and the wall of external surface was thickened gradually with the increase of coagulation bath concentration.

随着凝固浴质量分数的增加，中空纤维膜表面的孔径先减小后增大，而中空纤维膜接近外表面的皮层逐渐变厚。

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the effects of spinning dope concentration, coagulation bath temperature and addition of persimmon leaves on the mechanical properties of blend fiber were studied.

研究了纺丝原液浓度、凝固浴温度、柿叶添加量对共混纤维的力学性能的影响。

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furthermore, the sodium sulfate was added and orthogonal method based on the three components of coagulation bath introduced to obtain hec membrane with high strength.

在此基础上，加入硫酸钠，对三组分凝固浴进行正交优化设计，用以提高膜的强度。

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polyimide fibers were prepared via dry-jet wet-spinning process with the mixture of alcohol/ water as coagulation bath.

以聚酰亚胺浓溶液为纺丝浆液，以乙醇及其与水的混合物为凝固浴，采用干湿法纺丝工艺路线纺制聚酰亚胺纤维。

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the results indicate that the fiber with superior structure and properties can be obtained if a colder coagulation bath of well chosen medium is used.

研究表明，较低的凝固浴温度和经筛选的凝固浴介质有利于形成结构性能更佳的初生冻胶丝及其拉伸纤维。

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through comparing the membrane performance at different coagulation bath temperature, the higher the coagulation bath temperature, the higher the pure water flux.

比较不同凝胶浴温度下的膜分离性能可以看到，凝胶浴温度提高可以显著提升膜的纯水通量。

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