连续转子式电池生产线的技术实现

本文从机械原理分析了间隙式和连续式生产的差别，显示电池连续生产的重大意义，并且对如何实现连续转子式电池生产线作了深入的讨论。     

液滴旋转模型在重力场和均匀流场中的应用

本文主要应用单液滴旋转模型,研究了重力分离空间均匀蒸汽流场中液滴行为,定性描述了均匀蒸汽流场中液滴轨迹,分析了液滴在重力场和均匀蒸汽流场中运动的影响因素。主要讨论了液滴旋转及升力的影响,为液滴旋转模型的定量分析及其应用奠定了基础。     

Solvent Extraction Calculation Model for Purex Process in Pulsed Sieve Plate Column

A new calculation code PULCO has been developed to simulate the Purex extraction process in a pulsed column. The model for the PULCO code is based on the mass transfer taking place at the interface between dispersed drops and continuous phase fluid. The following physical quantities of the moving drop are included in the model for each period of drop motion in a pulsed column:

1. Mass transfer coefficient from liquid drop to continuous phase

2. Diameter and velocity of moving drop in the pulsed column

3. Holdup of dispersed and continuous phases in the pulsed column

4. Longitudinal dispersion coefficient in the pulsed column.

To establish the validity of the PULCO code, experiments were performed using a 50 mm diameter pulsed column which had a sieve plate section height of 2 m and plates spaced 50 mm apart. The experiments were performed by CY tests with use of unirradiated U and Pu. The experimental concentration profiles fitted well with the calculated concentration profiles.     

波型板分离器竖直板壁水膜流动研究

波型板分离器板壁的水膜流动特性影响分离器内二次水滴的生成．采用数值方法对波型板分离器板壁水膜流动特性进行研究,通过分析波型板板壁水膜流动的特点,并对流动水膜进行合理的假设和简化,建立了波型板板壁水膜流动的物理模型和数学模型。采用有限容积法．对流项采用二阶迎风格式,扩散项采用中心差分格式,对控制方程进行离散,采用ADI（Alternating—Direction Implicit）方法对离散方程进行求解数值研究得出在主流汽体横掠波型板汽水分离器竖直板壁情况下,板壁水膜厚度、平均速度等参数与汽流流动速度和沉降率之间的关系。     

一种新的量子遗传算法在阳山金矿GPS卫星信号去噪处理中的应用探讨

在GPS控制测量中,由于各种因素的综合干扰,造成GPS卫星接收机接收的卫星信号减弱,并伴随各种噪声。研究设计了一种新的量子遗传算法,根据数学形态结构元素参数特点初始化量子遗传种群,通过量子交叉、变异以及基于膨胀系数的量子旋转门实现种群的演化进程,进而对卫星信号进行去噪处理并降低基线残差来提高基线解算精度。以武警黄金第十二支队在甘肃阳山金矿采集的GPS数据为基础,采用3种方法对卫星信号进行去噪处理,通过对比发现新的遗传算法能将噪声信号的信噪比由-0.92 dB提高到5.11 dB。     

喷淋液滴在空气环境下的运动特性

本文以喷淋液滴在空气环境下运动特性为工程背景,建立单个液滴在常温、常压空气环境中的动量方程,分析液滴沉降特性、追赶特性及运动轨迹行为。计算结果表明,不同喷淋液滴初始条件下,短时间内存在重力大于曳力和重力小于曳力两种情况,但最终减速液滴均会达到受力平衡状态;液滴离开喷淋头后,垂向位移均迅速增大,液滴粒径越大、初始速度越大,垂向位移增长的速率也越大,达到相同位移的用时越短;液滴尺寸、初始速度相差越大,液滴追赶所用的时间越短,追赶位移越小,液滴尺寸、初始速度越接近,液滴追赶所用的时间越长,追赶位移越大;液滴初始速度越大、初始直径越大、喷射角度越大,横向速度消失越慢,达到的横向位移越大,喷射液滴覆盖的面积也越大。计算结果有助于优化工程实际中喷淋系统的设计与布置。     

微乳液的稳定性及其在制备超细Y2O3中的应用

探讨了CTAB／n—C4H90H／c-C6H12／H2O体系微乳液的稳定性，绘制了该体系的三元和拟三元相图，当CTAB与n—C4H9OH质量比为2：3时有较宽的稳定的W／O微乳液相区，是制备超细Y2O3的理想体系。在该体系稳定区内，通过调整ω，可改变微乳水核半径。Y（NO3）3溶液和草酸溶液在微乳液水核（微反应器）中进行沉淀反应，制备出不同粒径、形貌的超细氧化钇。样品经X射线衍射（XRD）、透射电镜（TEM）表征，结果表明，ω增大，水核半径增大，超细Y2O3的粒径变小，形貌也发生变化。当ω=17时，可制备出粒径为30nm的晶型完好的Y2O3立方晶粒。     

基于3D角度编码的量子遗传算法

为了充分利用量子态在算法中的量子特性,提高算法的搜索效率,减少存储空间,提出了一种基于3D角度编码的量子遗传算法。该算法将量子位描述为3D球面坐标下的一对相位角,充分利用了量子的空间运动特性,并引入一种自适应旋转角大小和方向的确定方案,从而进一步简化了染色体的更新和变异过程,而且使算法的量子特性、存储性能、时间性能都得到很大的提高。仿真结果表明,其在算法优化效率和搜索能力上都优于简单遗传算法和普通量子遗传算法。     

钢球在旋转圆筒内的滚动浅析

对钢球在圆筒内不同条件下的运动进行了分析并进行了实验观察。理论分析表明，多个单排钢球与单个钢球在圆筒内获得匀速运动的条件基本相同，必须具有一定的角速度和角加速度。圆筒内钢球数量较多时，存在着钢球之间的滚动或滑动。实验观察表明，当圆筒内同时存在钢球与粉末时。在较低的速度下粉末随筒壁均匀旋转，钢球则在原堆积部位来回滚动。     

Predictive CFD modeling of whey protein denaturation in skim milk spray drying powder production

A new model of whey protein thermal inactivation has been combined with a CFD model developed for skim milk spray drying. Extensive evaporation and particle formation models were used to calculate particle moisture contents, temperatures and residence times. Calculated parameters were then used as input data for an experimentally developed quality model based on Williams-Landel-Ferry (WLF) equations for inactivation kinetics. The developed quality model was implemented into the CFD code and calculated in parallel to simulations of skim milk droplets evaporation based on the characteristic drying curve approach. The quality model and the simulation procedure were validated by comparison of protein activity levels obtained from the CFD with data obtained from differential scanning calorimetry (DSC) of milk powder samples collected during skim milk spray drying experiments. The simulations for different feed rates fit well with measurement results and show that the loss of whey protein activity is lower at higher feed rates, due to lower temperature fields in this case.