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For improving the quality of Chinese tradition frozen flour food,providing processing informa- tion for frozen flour food industry,standard wheat flour in market was selected as the material,second re- gress correctitude was performed with forceand tractilityas target,two second order quadratic equations for frozen dough sheet processing were built.

以市售标准粉为材料,利用二次回归正交旋转试验设计,分别以冷冻面片质构特性参数破碎力和延展性为响应值建立了冷冻面片制作的二次多项数学模型,验证了模型的有效性,采用响应曲面法(response surface methodology,RSM)考察了交互作用的影响,并根据方程求解出稳定点的水平值,从而确定出冷冻面片制作工艺的优化参数为:和面速度240 r/min,和面时间5 min,和面加水量40%,静置时间30 min,冷冻温度-30℃,冷冻时间5h。

Aconnector is an injection molding from the positioning kits and installed in the positioning of the Inner-Block, packaged in the seat of the spring and reed composition, described the position set of cylindrical Chengyuan, the location of the hole sets A circular from the convex to capacity at the first spring home district and the Department of card system for the second district of the blocks in the positioning of the sets of holes in the first referred to the Ministry, since the port inside the shaft Two symmetrical to the hole within the targeted slot, a connector and adapter combination of positioning, positioning slot in the rear, the agreement sets in the central part of setting the level of L-shaped slots, so that the connector and adapter reliable combination of the Practical use of new high-strength engineering materials first injection molding, greatly simplified the process, a connector improve the accuracy of the positioning trough of the utility model to improve, even if the products improve the safety and reliability, and more convenient assembly, product structure is simple And optimize the manufacturing process, reducing costs and improve productivity.

一种连接器是由注塑一次成型的定位套和安装在定位套内的机座、套装在机座上的弹簧和簧片组成,所述的定位套呈圆柱状,该定位套的内孔由一内凸圆隔出容置弹簧的第一区部和卡制机座的第二区部,在定位套的内孔,位于所述的第一区部处,自端口向内,轴向对称设置两条内孔定位槽,起到连接器与适配器结合的定位作用,在该定位槽尾部,约定位套的中部设置L形水平槽孔,使连接器与适配器可靠结合;本实用新型采用高强度工程材料一次注塑成型,大大简化了加工过程,提高了一种连接器的精确度,本实用新型定位槽的改进,即使产品安全可靠性提高,又更方便组装,产品结构简单、制造工艺优化,从而降低了成本,提高了生产率。

A connector is an injection molding from the positioning kits and installed in the positioning of the Inner-Block, packaged in the seat of the spring and reed composition, described the position set of cylindrical Chengyuan, the location of the hole sets A circular from the convex to capacity at the first spring home district and the Department of card system for the second district of the blocks in the positioning of the sets of holes in the first referred to the Ministry, since the port inside the shaft Two symmetrical to the hole within the targeted slot, a connector and adapter combination of positioning, positioning slot in the rear, the agreement sets in the central part of setting the level of L-shaped slots, so that the connector and adapter reliable combination of the Practical use of new high-strength engineering materials first injection molding, greatly simplified the process, a connector improve the accuracy of the positioning trough of the utility model to improve, even if the products improve the safety and reliability, and more convenient assembly, product structure is simple And optimize the manufacturing process, reducing costs and improve productivity.

一种连接器是由注塑一次成型的定位套和安装在定位套内的机座、套装在机座上的弹簧和簧片组成,所述的定位套呈圆柱状,该定位套的内孔由一内凸圆隔出容置弹簧的第一区部和卡制机座的第二区部,在定位套的内孔,位于所述的第一区部处,自端口向内,轴向对称设置两条内孔定位槽,起到连接器与适配器结合的定位作用,在该定位槽尾部,约定位套的中部设置L形水平槽孔,使连接器与适配器可靠结合;本实用新型采用高强度工程材料一次注塑成型,大大简化了加工过程,提高了一种连接器的精确度,本实用新型定位槽的改进,即使产品安全可靠性提高,又更方便组装,产品结构简单、制造工艺优化,从而降低了成本,提高了生产率。

In this paper,the process of sodium hypophosphite production and equipment is summarized,new views and suggestions are put forward according to corresponding technological exploitation.

王书林,沈万涛,次磷酸钠生产工艺及反应器的优化对生产次磷酸钠工艺及主要设备进行了评述,对相应的技术开发提出了新的见解和建议。

objective to optimize microwave extraction process of mannitol from sparganium stoloniferum.methodsguided by the contents of mannitol in sparganium stoloniferum, uniform design, response surface analysis and path analysis were used to optimize microwave extraction process by combining with single factor experiment.resultsobtained response surface equation is notable at the level a.01 and the relative error of the predicted value from the model was smaller than 1%.

目的优化三棱中甘露醇的微波辅助萃取工艺。方法以甘露醇含量为响应指标,通过均匀试验设计,采用二次响应曲面和通径分析并结合单因素实验优化三棱中甘露醇的微波辅助萃取工艺。

In this paper, based on a pill-box window model with a conical-shaped alumina ceramic and Ansoft HFSS software, the relation of VSWR with various electrical parameters in the window is simulated; the effects of variations of the output window structure on electrical field intensity, microwave power flow and quantity of heat are analyzed; the electrical characteristics of frequency bandwidth, power capability and heat dissipation for the pill-box window with conical-shaped or disk alumina ceramic are discussed, which shows that, with a rational structure of the window with conical-shaped alumina ceramic, the output capability of microwave peak and average power may greatly be increased, the secondary electron emission may effectively be suppressed, and heat dissipation may become more uniform and be easier for cooling.

本文在前人工作的基础上,基于圆锥形陶瓷盒形输出窗模型,采用Ansoft HFSS三维计算软件的优化模拟,对该输出窗模型的驻波频率特性与各种结构参量的关系进行了优化模拟,分析了该输出窗片结构变化对其表面的电场分布,功率流分布、热量分布的影响,得出最优模型参数。并且探讨了陶瓷窗片的形状和几何结构对改善输出窗的频带特性、提高峰值功率和平均功率、抑制二次电子倍增方面的作用。

In the non_dimensional time domain,the generalized quadratic performance criterion of error state is transited into the optimal problem of structural parameters,thus to get an optimal parameter system_optimal damping control system with big margin for stability,little number for oscillation,small overshoot and small setting time.

1引言利用优化系统的结构参数,使之输出的动态性能达到最佳程度,传统方法都是在时域或频域中进行,典型的有&ITAE&准则[1]及电子最佳调节理论[2],基于无量纲时域中的误差状态二次型性能指标的优化方法,是一手种新的最佳参数化方法[3],可使系统对于输入作用的阻

Based the optimized batch-fermentation condition, it was confirmed that the DE of cassavahydrolysate in the fed batch culture was 80, 4%(NH4)2SO4, adding fed batch culture four times 36hours after the fermentation beginning, and 1.5 hours of fed interval, were the optimized fed-batchfermentation conditions, by studying the culture composition, method, original time and interval offed batch, and some main parameters of the citric acid fermentation, such as citric acid yield, invertrate, fermentation periods and residual glucose.

在批式发酵优化条件的基础上,通过对补料液的组成、补料方式、流加起始时间、流加间隔时间等对柠檬酸发酵过程的主要参数,如产酸率、转化率、发酵周期、残糖等的影响进行了研究,确定了柠檬酸补料发酵的优化条件,即:补料液中木薯糖化液的DE值为80,加入0.04%(NH4)2SO4;发酵36h小时开始分四次流加补料液,流加的间隙时间为1.5小时。

The model aims at minimum annual cost (including operating cost and equipment depreciation cost) of whole evaporation system (including two sequential system——multi-evaporation system and multi-level preheating system). The tempreture of flesh vapor, the tempreture of condenser, effective heat-transfer temperature difference of vari-effect, and outlet solution temperature of vari-level preheater were both decision variables.

优化设计数学模型以整个蒸发系统(包括多效蒸发和多级预热两个序贯系统)的年总费用(包括系统年操作费用和设备年折旧费用)最小为优化目标,以生蒸汽温度T0、冷凝器中二次蒸汽温度Tk、各效蒸发器有效传热温度差Δti及各级预热器溶液出口温度tpj为决策变量。

Aiming at the thermal resistance and pressure drop as two objective functions,the multiobjective optimization model of the microchannel cooling heat sink was built.

以热阻和压降作为2个目标函数建立了微槽冷却热沉的多目标优化模型,采用序列二次规划方法对微槽的结构尺寸进行了优化设计。

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