过饱和度
- 网络supersaturation;degree of supersaturation
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研究了沉淀剂组成、搅拌速度、溶液的过饱和度等因素对AUC沉淀结晶的影响。
The influences of the composition of precipitant , stirring rate and supersaturation level on AUC crystal are studied .
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ZnO晶须的生长主要由两个因素决定:一是ZnO在衬底表面的过饱和度,另一个是ZnO自身的结晶特性。其中,过饱和度是结晶和取向生长最重要的驱动力。
The growth of ZnO whiskers is determined mainly by two considerations : one is the supersaturation of ZnO above the substrates , and the other is the crystallization habit of ZnO material itself .
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而低的过饱和度和低的pH值有利于羟基磷灰石晶须的针状生长。
So that the growth of hydroxyapatite whisker was affected because of the change of supersaturation .
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在此之前进行的很多研究工作主要是研究能可靠测量过饱和度的新仪器、新设备或者一些比较简单的控制方式(如常规PID控制)。
Previous work either concentrated on developing new instruments or alternatively to simply control the pan such as general PID control .
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KDP晶体过饱和度实时控制生长
Real-time Control of Supersaturation in Growth of KDP Crystal from Aqueous Solution
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实时控制过饱和度降温法生长KDP晶体
KDP Crystal Growth by Decreasing Temperature Using Supersaturation-Control System
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当然,在DMC控制中也出现了一些不足之处,如过饱和度控制有波动。
Of course , there are some defects in DMC control , such as the fluctuation of OS .
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此外,对SiC单晶材料的生长机理进行了讨论,研究了过饱和度对SiC晶体生长和形貌的影响。
Furthermore , the growth mechanism of the SiC single crystals is discussed and the effect of supersaturation on the crystal growth and morphology is also investigated .
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同时,在较高的相对过饱和度下,观察到了TGS自然结晶体的两种简单晶形。
Two simple crystal forms of TGS spontaneous nucleation crystals were also observed .
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不同过饱和度下DKDP晶体生长和缺陷的研究
Growth and Defect of DKDP Crystal at Different Supersaturation
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混合粉末中Fe含量为40wt.%时,高过饱和度与过冷度导致液/固界面由原子尺度光滑向原子尺度粗糙转变,其生长机制转变为连续生长。
Due to high supersaturation and undercooling , liquid / solid interface of TiC changes from smooth interface to coarse interface in atom scale , and its growth mechanism of TiC also changes to continuous growth .
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EDTA自组装、预钙化处理和1.5倍模拟体液提高了羟基磷灰石沉积的过饱和度,降低了形核能垒,促进了羟基磷灰石的生长。
EDTA self-assemble , pre-deposit treatment and 1.5 SBF immersion increased the supersaturation of HA deposition , reduced the energy of nucleus formation , accelerated the HA growth .
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溶液HAP过饱和度越高,诱导时间越短,即可溶性磷越易被固定。2.离子强度是正磷酸钙结晶过程的重要影响因子。
The higher the degree of supersaturation is , the shorter the introduction time is . 2 . Ionic strength ( IS ) is an important factor of influence of Ca-P crystallization .
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随后,以籽晶称重法测定了KTP晶体在这两种不同溶液体系中的生长质量速度与溶液过饱和度之间的关系。
Afterwards , the relationship between the growing velocity ( of mass ) of the KTP crystal and the super-saturation of the solution is measured using the small seed crystal weighing method .
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研究结果表明,模糊自适应PID控制器能够实现对结晶过程的关键量&过饱和度的有效控制,调节过程曲线平滑、无大的波动,能够提高蔗糖结晶的速度、缩短煮糖时间。
From the result of the investigation , the fuzzy self-adaptive PID controller can efficiently achieve to control the oversaturation , the regulating and controlling processing curve is gentle and smooth . So the sugar crystal rate was improved and the sugar crystal time was shorten .
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实验还表明,在固定过饱和度情况下,KTP晶体生长速度将随溶液中正磷酸盐相对含量增加而减少。
In addition , the experimental results indicate that the steady state growth rate of the interfaces decreases with the increase in relative quantities of orthophosphate in the solutions at the same supersaturation .
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本文对比加与不加外力场时的电导率时间曲线和pH值时间曲线,揭示了外力场的作用是提高Ca2+的过饱和度,诱导碳酸钙迅速成核,同时也强化了传质作用;
Time-electro-conductivity and time-pH curves with or without a field of outer force ( FOF ) are compared in this paper . The results show that FOF can increase super saturation of Ca ~ 2 + and induce calcium carbonate to nucleate quickly and also improve solute transfer .
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燃烧合成过程极高的过饱和度与过冷度的差异使得TiC、ZrC晶核在凝固和析出生长过程中速度不同,从而导致TiC、ZrC晶体生长形态各异。
Due to the high supersaturation and undercooling , TiC and ZrC nuclei have different solidification , precipitation and growth rate , and hence resulting in the diverse growth morphologies of TiC and ZrC crystals .
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以Al、AlN粉为原料,采用合适的矿化剂,通过控制反应器内的温度和气相过饱和度,可以获得不同尺度的AlN晶须或枝晶。
AlN whiskers or dendrites were synthesized with a sublimation recrystallization method by using Al ? AlN powders and some additives as raw materials . Whiskers of different sizes were obtained by controlling the temperature and gas supersaturation in the reaction container .
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提高分解温度和选择合理的通气制度可以降低铝酸钠溶液的过饱和度,生产结晶良好、Na2O和SiO2杂质含量低的粗颗粒氢氧化铝产品。
Improving carbonization temperature or choosing reasonable gas ventilating system may reduce the liquor supersaturation , and then the coarse grain aluminium trihydroxide with good crystallization and low content of impurities ( Na2O , SiO2 ) can be produced .
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用高温晶体生长实时观察装置,发现了KABO晶体生长形态随着生长体系过饱和度的增大从六方形态逐渐向三角形态过渡,然后又从三角形态逐渐向六方枝蔓晶形态过渡的过程。
It was found via high temperature crystal growth in situ observation device that the morphology of KABO crystal varies with the degree of supersaturation of the crystal growth solution .
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本文在简单分析模型预测控制算法的基本理论和优点的基础上,讨论了一种适合煮糖罐过饱和度控制的具有响应速度快、鲁棒性强的预测控制算法&动态矩阵控制(DMC)。
After simply analyzing the basic theory and prepotency of model predictive control algorithm , a kind of model predictive control algorithm proper for industrial cane sugar crystallization process control is discussed , which has rapid responsive-speed and good robust capability-Dynamic Matrix control ( DMC ) .
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以热液型石英晶体为对象,研究了过饱和度和温度对石英晶体形貌的影响,并运用PBC理论和负离子配位多面体理论对石英晶体形貌特征的形成机理进行了研究。
Effects of both supersaturation and temperature on the morphology and surface structure of hot liquid type quartz crystal were studied . Based on PBC theory and Anion Complexing Polyhedron theory , the forming mechanism of morphology and surface structure of quartz crystal was researched .
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研究结果表明:光卤石溶解制氯化钾结晶机理为:氯化钾是先溶解后结晶的过程,即KC1先溶解到溶液中,当溶液中KC1达到一定过饱和度后再从溶液中结晶析出。
The results showed that carnallite dissolved in the water was a process that potassium chloride dissolved firstly and then KC1 crystallization appeared when certain supersaturation of KC1 was got .
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较小的过饱和度和Mg~(2+)离子的结晶生长抑制作用使SBF中形成了结晶细小且比较薄的涂层,不破坏多孔钛的孔隙结构。
Small crystals and thin apatite layer were formed in SBF because of the lower S and Mg2 + ions which can affects the growing rate of apatite crystal by stabilizing amorphous Ca-P phases and the coating did not damage the porous structure of the samples .
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两种信息都由FFT(CF-910)分析仪采集记录,得到膨胀气流的压力曲线,显永过饱和度的变化;得到散射光功率曲线,立定不同蒸汽分压下液滴的相对增长速率。
The two messages are recorded by FFT ( CF-910 ) Analyzer : the pressure curves produced from rarefactive gas-flow which exhibit the variation of supersaturation vs times and the power curves produced by light scattering which ascertains the relative growth rate of droplets in different initial partial pressures .
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基于最小二乘法的糖液过饱和度软测量
Soft Measurement of Sucrose Oversaturation by Using the Least Square Method
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一水甲酸锂晶体生长界面过饱和度的测量
Measurements of the Interface Supersaturation of Lithium Formate Monohydrate Crystal Growth
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柠檬酸对石膏析晶过饱和度和微结构的影响
Effect of Citric Acid on Crystalline Habit and Crystal Morphology of Dihydrate
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在过饱和度较低的时候,随过饱和度的增加,成核速率变化较为迅速;
Nuclear speed increase rapidly while super saturation was lower ;