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酒精发酵过程
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  alcoholic fermentation process
     On Models Deuelopment of Alcoholic Fermentation Process and its Parameters Estimation
     酒精发酵过程的模型开发和参数估计
短句来源
  ethanol fermentation process
     The Genetic Algorithm was used to seek best parameters value for good data simulation, the model described the fermentation process well. Then the model was used to predict the batch ethanol fermentation at 24. 7% initial glucose concentration with good predicting performace. As a result,the unstructed kinetics model could be used to describe and predict high substrate and high product concentration batch ethanol fermentation process.
     建立了非结构发酵动力学模型, 以描述高基质(葡萄糖)和高产物(酒精)浓度条件下的酒精间歇发酵过程,采用改进遗传算法对非结构发酵动力学 模型中的参数进行了求取,并将该模型用于预测24.7%初糖浓度下的酒精间歇发酵,预测结果显示该模型可应用 于高基质(葡萄糖)和高产物(酒精)浓度条件下的酒精发酵过程
短句来源
  “酒精发酵过程”译为未确定词的双语例句
     Application of BP neural network in modeling alcohol fermentation process
     BP神经网络在酒精发酵过程建模的应用
短句来源
     Study on the by-products of ethanol fermentation in high substrate concentration medium
     高基质浓度酒精发酵过程中副产物的研究
短句来源
     Based on the analysis of actual data of density during fermentation,the mathematic model of density changes during pink wine alcohol fermentation was established.
     在分析桃红葡萄酒酒精发酵过程中密度实测数据的基础上,建立了桃红葡萄酒酒精发酵过程密度变化规律的数学模型。
短句来源
     The results showed that the fermentation ability of yeast was promoted by adding suitable nitrogen, and fermentation period was shortened 12 h.
     结果表明,在酒精发酵过程中添加适量氮源,可明显提高酵母细胞的数量和发酵能力,缩短发酵周期12h;
短句来源
     The hybrid support vector machines(HSVM) model was proposed by combing SVM with fermentation kinetics mechanism in serial and serial-parallel approaches and used to predict the state of biomass in fermentation.
     还将生化过程的动力学机理与支持向量机相结合, 采用串联和串并联结构, 提出与机理杂交的支持向量机建模方法, 并为间歇式酒精发酵过程中酵母菌体浓度变化建立了预测模型.
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  相似匹配句对
     The Distributed Control System for Fermentation Process
     发酵过程集散控制系统
短句来源
     Study on Ethanol Fermentation from Pentose
     戊糖酒精发酵
短句来源
     Automation in a Fermentation Process
     发酵过程自动化
短句来源
     Application of BP neural network in modeling alcohol fermentation process
     BP神经网络在酒精发酵过程建模的应用
短句来源
     On Models Deuelopment of Alcoholic Fermentation Process and its Parameters Estimation
     酒精发酵过程的模型开发和参数估计
短句来源
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  alcoholic fermentation process
Discrimination between ethanol inhibition models in a continuous alcoholic fermentation process using flocculating yeast
      
In this study, we investigated the dynamics of a computer simulation of a continuous alcoholic fermentation process combined with a flash column under vacuum.
      
A software sensor for on-line determination of substrate was developed based on a model for fed-batch alcoholic fermentation process and on-line measured signals of ethanol, biomass, and feed flow.
      
Evaluation of optimization techniques for an extractive alcoholic fermentation process
      
The mathematical optimization of a continuous alcoholic fermentation process combined with a flash column under vacuum was studied.
      
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  ethanol fermentation process
The feasibility of a continuous ethanol fermentation process with immobilizedSaccharomyces cerevisiae cells in a magnetically stabilized bed (MSB) was demonstrated.
      
Hybrid neural network model of an industrial ethanol fermentation process considering the effect of temperature
      
To improve the economic competitiveness of the acetone/butanol/ethanol fermentation process, glucose/corn steep water (CSW) medium was used on a pilot scale for the production of solvents.
      
In this study the possibilities for simultaneous carrying out of ethanol fermentation process and maltodextrines hydrolysis by immobilized glucoamylase were investigated.
      
Fuel ethanol fermentation process is a complex environment with an intensive succession of yeast strains.
      
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Flocculating yeast strain IFFI 1792 was used in the studies on continuous ethanol fermentation. Air lift reactors (ALR) were used both in single and in double in series forms. High cell density and productivity were achieved in both cases. In single ALR, the highest productivity reached to 30g ethanol/L/h. In double ALRs,23.5g ethanol/L/h was able to be reached with ethanol concentration of 7.2% (v/v)and 90% ethanol yield.An unstructured dynamics model without growth factors was derived for the process analyses....

Flocculating yeast strain IFFI 1792 was used in the studies on continuous ethanol fermentation. Air lift reactors (ALR) were used both in single and in double in series forms. High cell density and productivity were achieved in both cases. In single ALR, the highest productivity reached to 30g ethanol/L/h. In double ALRs,23.5g ethanol/L/h was able to be reached with ethanol concentration of 7.2% (v/v)and 90% ethanol yield.An unstructured dynamics model without growth factors was derived for the process analyses.

絮凝性酵母菌株IFFI 1792被用于酒精连续发酵的研究。连续发酵试验在单级和串联的气升式内循环生物反应器中进行,实现了高细胞浓度高强度酒精连续发酵。试验研究了各种因素对酒精连续发酵的影响,发现溶解氧浓度在一定范围内对高效发酵有利。在单级气升式生物反应器中,生产强度可达30乙醇/L·h;临界生产强度在菌体浓度为80g/L时达到24.5g乙醇/L. h。在两级串联反应器中,生产强度在达到23.5g乙醇/L·h,对应于最终酒糟浓度7.22%(V/V)。连续发酵试验进行到40天,未见发酵活力下降。由试验结果归纳建立了一个非结构的无生长因素的发酵动力学模型,用于连续酒精发酵过程的理论分析。

The kinetic consideration about the study of batch alcoholic fermentation of starch hydrolysate of batata was reported for four different initial glucose concentration,namely 90,135,185,285g/1,and 5~# and 1308~# saccharomyces cerevisiae yeast strains in fermentation. Based on a lot of experimental data,a new kinetic model r=Ae~(B(?))[1- (P/P_m)]~n was proposed to evaluate the influences of substrate and product inhibition on the specific yeild.The experimental results showed that A and B in the kinetic model...

The kinetic consideration about the study of batch alcoholic fermentation of starch hydrolysate of batata was reported for four different initial glucose concentration,namely 90,135,185,285g/1,and 5~# and 1308~# saccharomyces cerevisiae yeast strains in fermentation. Based on a lot of experimental data,a new kinetic model r=Ae~(B(?))[1- (P/P_m)]~n was proposed to evaluate the influences of substrate and product inhibition on the specific yeild.The experimental results showed that A and B in the kinetic model were the parameters which represented the substrate inhibition degrees respectively:A value was dependent on not only the substrate concentrations,but also the species of yeast strains,while B value dependent on the substrate concentrations only,but independent on the species of yeast strains.The exponent n was a parameter which indicated the pro- duct inhibition degrees.Moreover,the time at which the product inhibition effect happened could be determined by this model.For the above substrate, the product inhibition occured at about 1/2 P_m for 1308~# strain and 1/3P_m for 5~# strain respectively.The optimal range of substrate concentration covered 90-135g/1.

本文报道了以薯干粉为底物原材料,用两个酿酒酵母1308~#和5~#,以90、135、185,285g/L(以葡萄糖含量计)4个不同底物浓度进行间歇式酒精发酵过程中的动力学研究,在所得大量实验数据的基础上,经计算机处理,建立了新的动力学模型.并且用这个模型可以确定产物抑制发生的时刻,本文还指出:薯干粉原料发酵最适底物浓度为90—135g/l.

The fermented broth with dense cell aggregated particles under aerobic conditions as a three phase system was simulated by inert ion-exchange resin particles and the gas holdup of such a system in an air-lift biore-actor was investigated. Based on the data taken from the simulated system and the measurement on a real yeast flock cultivation system, the correlation of gas holdup with superficial gas velocity, circulating velocity of suspended me-dium and interfering sedimentation velocity was obtained. The predicted...

The fermented broth with dense cell aggregated particles under aerobic conditions as a three phase system was simulated by inert ion-exchange resin particles and the gas holdup of such a system in an air-lift biore-actor was investigated. Based on the data taken from the simulated system and the measurement on a real yeast flock cultivation system, the correlation of gas holdup with superficial gas velocity, circulating velocity of suspended me-dium and interfering sedimentation velocity was obtained. The predicted values from correlation agreed well with experiments.

首先以惰性离子交换树脂模拟絮凝细胞颗粒,以水模拟低粘度培养液,在有效容积12L的气升式生物反应器中研究了气升管内三相系统的气含率,获得了关联式ε_g=(1-0.825U_t~(-0.0233)d~(0.0134))/(1+U_(sL)/U_g进而以絮凝法固定化酵母酒精发酵过程中的絮凝酵母颗粒一培养液这样的真实物系,对模拟物系研究建立的关联式进行修正,得到ε_g=(1-0.783U_t~(-0.0233)d~(0.0134))/(1+U_(sL)/U_g上述气含率的关联式与反应器环流系统的动量方程式相结合,可以预测反应器中流体力学基本参数.

 
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