乙醇透析发酵耦合过程研究（Ⅰ）

设计了乙醇发酵与膜透析耦合系统并进行了试验研究．结果表明，该过程可减少产物乙醇对发酵的抑制作用，膜透析系统的乙醇总量比对照组提高２０％～８０％，基质转化率提高３０％～８０％．     

Horwitz's rule, transforming both sides and the design of experiments for mechanistic models

Summary. The paper develops methods for the design of experiments for mechanistic models when the response must be transformed to achieve symmetry and constant variance. The power transformation that is used is partially justified by a rule in analytical chemistry. Because of the nature of the relationship between the response and the mechanistic model, it is necessary to transform both sides of the model. Expressions are given for the parameter sensitivities in the transformed model and examples are given of optimum designs, not only for single-response models, but also for experiments in which multivariate responses are measured and for experiments in which the model is defined by a set of differential equations which cannot be solved analytically. The extension to designs for checking models is discussed.     

bFGF发酵工艺参数正交优化试验

通过正交实验研究了bFGF发酵的各主要影响因素对于最终产物的数量和纯度的关系,从而确定发酵的最适工艺条件。结果表明当温度控制在37℃,pH值7.0,发酵时间10小时,IPTG诱导浓度为100μg/mL,消泡剂为5 mL/L时,调节溶解氧在40-60%之间对于整个发酵过程是非常有利的。     

凝固型椰汁酸奶的研制

采用双歧杆菌,保加利亚乳杆菌,嗜热链球菌,嗜酸乳杆菌,干酪乳杆菌的混合菌种作为发酵剂,以椰子汁、纯牛奶作为主要原料,制备凝固型椰汁酸奶,通过正交试验L9(34)优选出产品配方和发酵工艺.     

T-optimum designs for discrimination between two multiresponse dynamic models

Summary.  The paper is concerned with a problem of finding an optimum experimental design for discriminating between two rival multiresponse models. The criterion of optimality that we use is based on the sum of squares of deviations between the models and picks up the design points for which the divergence is maximum. An important part of our criterion is an additional vector of experimental conditions, which may affect the design. We give the necessary conditions for the design and the additional parameters of the experiment to be optimum, we present the algorithm for the numerical optimization procedure and we show the relevance of these methods to dynamic systems, especially to chemical kinetic models.     

新型复合吸附干燥剂的吸附动力学特性研究

研制的一种由粗孔球形硅胶和氯化钙组成的新型复合吸附干燥剂SiO2.xH2O.yCaC l2与常用的干燥剂相比具有更好的吸水除湿性能.采用理论分析与实验验证的方法分析了新型复合吸附剂的吸附动力学特性及其影响因素,并建立了传质数学模型.研究结果表明,外扩散过程是传质的主要阻力,增大风速、减小吸附剂颗粒直径是减少传质阻力的有效措施.     

根霉液体发酵产淀粉酶条件优化的研究

研究了根霉液体发酵产淀粉酶的最佳条件,通过分析碳源、氮源、培养温度、表面活性剂等对根 霉产淀粉酶的影响,另外还考虑了接种量、金属离子对根霉产淀粉酶的影响,以及溶液初始pH值对酶 活性的影响,确定了根霉液体发酵产淀粉酶的最佳条件。     

回旋管复合腔的綫性理諭

本文利用线性动力学理论和扰动方法,详细研究了回旋管复合腔的注波互作用和电子注的预群聚作用。推出了电子注与波的互作用功率、频偏和起振电流等公式,并进行了详细的讨论和分析。     

关于动力学理論中的扰动方法

本文讨论了动力学理论中求解Vlasov-Maxwell方程的扰动方法,证明了第一次线性化后的高阶分布函数对研究电磁波与带电粒子之间的互作用没有影响,并给出了第二次线性化后的Vlasov-Maxwell方程的一般求解方法.     

论化学热力学和化学动力学的矛盾及其统一

以平衡常数的理论计算,化学反应与温度的关系,以胶体的稳定性为例,分析了化学热力学和化学动力学之间的一些矛盾和产生矛盾的原因,揭示了化学热力学和化学动力学对立统一的关系。