随机度量理论的最近进展及其应用

本文综述了随机度量理论在近十年来的重要进展及其具有代表性的某些应用。     

电力系统微机型产品的电磁兼容设计

从分析电力系统中电磁干扰的来源、传输途径入手，对应用于电力系统的微机型产品设计中的电磁兼容问题进行了较为系统的探讨，并提出了行有效的解决措施。     

以国标GB1.7为指导编制“变流器包装”企业标准

介绍了某企业在变流器包装的设计和制定其企业标准的过程中执行ＧＢ１．７（标准工作导则）的情况，论述了在充分考虑产品特点和流通环境条件下，企标增补的内容，这些内容是对变流器包装有关标准的深化和创新。新企标不仅注重标准深度，而且考虑标准广度方面的拓展，代表了当前较好的生产水平，可作为生产过程中控制质量，评价和检验质量的依据。     

水溶液辐射分解产物对金属材料腐蚀的影响

实验研究了水辐射分解作用对高放废物深地质处置容器材料的影响。在高放废物深地质处置库附近的地下水,受辐射线作用后分解出氧、氢和氧化产物(例如H_2O_2等),于是在高放废物容器周围形成一个氧化场,导致高放废物中的某些重要放射性核素(例如U,Np和Tc)易溶于水,并向远域迁移。本实验中的含FeSO_4(0.13 mol/L)水溶液在吸收剂量为0、20、60、180、500kGy的射线作用下,其氧化还原电位(Eh)值由+357mV增至+414 mV;在不同吸收剂量的射线作用下,金属Cu、金属Al、0.357 mv金属Fe和不锈钢(后者是我国拟采用的高放废物包装容器材料),在水溶液中的氧化侵蚀强度,分别比在无辐射情况下的大0.2-6.1倍。     

Membrane Packaging System to Permit Safe Hydration of Freeze-Dried Contents with Impure Water

We tested the feasibility of using polymer membranes for a self-hydrating packaging system to reconstitute freeze-dried foods using nonpurified water. Several commercial membranes were screened according to (1) hydration rate, (2) water permeability, (3) passage of microorganisms, (4) salt rejection, and (5) strength. The most promising membranes were used for developing and testing prototype packaging systems. A feasible self-contained rehydration system was a nylon-6 polyamide membrane that rehydrated the freeze-dried food within 30 min while passage of microorganisms was prevented. The temperature was 37°C, and the food contained 0.5g/5g of a low molecular weight solute (salt). Such self-contained membrane rehydration systems must be designed to accommodate expected environmental conditions such as temperature, relative humidity, and nature of the product.     

Application of Laminated Edible Films to Potato Chip Packaging

The effects of various stearic-palmitic acid blend concentrations in films, storage temperatures and storage times on potato chip quality were evaluated using Response Surface Methodology. Storage temperature and time affected the quality of potato chips. The maximum storage times for acceptable potato chip quality were: 30 to 43 days, 23 to 25 days, and 11 to 12 days for storage temperatures of 15, 25 and 35°C, respectively. Results were independent of stearic-palmitic acid blend concentrations.     

玻璃包装改进及经济效益分析

论述了平板玻璃包装技术改进对提高包装质量和企业经济效益的影响,介绍了平板玻璃包装箱(架)的性能,简述了计算机辅助设计及计算机辅助管理在玻璃包装结构设计及包装质量管理中的效用。     

Kinetic analysis for effect of initial substrate concentration on growth and secondary metabolite production in cultures of Nicotiana tabacum

Suspension cultures of tobacco cells were studied using airlift and rotary-drum bioreactors. The effect of initial concentrations of a major substrate, sucrose, on the growth and production of a secondary metabolite, phenolic compounds, was investigated. The dry weights and total concentrations of the phenolic compounds increased with the initial sucrose concentration in both bioreactors. Both bioreactors were found to have the same tendency for the effect of initial sucrose concentration. The structured model, presented previously was modified by considering that sucrose was hydrolyzed to glucose and fructose by an enzymatic reaction. The previous and the new models were applied to the above two sets of experimental data obtained with two bioreactors, independently. The hydrolysis of sucrose was elucidated to contribute slightly to the overall kinetics of growth and secondary metabolite production in these cultures. Furthermore, the levels of shear damage in each bioreactor were quantitatively compared based on the death rate constant, k_i, which is one of the model constants.     

高密度封装CAD技术研究

介绍了自行研制的高密度封装外壳设计软件、阐述了其工作原理和功能。应用该软件设计并制作出目前国内最多针脚数的外壳ＰＧＡ２５７。     

冲击过载指示器性能试验研究

冲击过载批示器用于现代高技术兵器包装，可提高兵器使用可靠性，便于失效模式分析，提高兵器战是保障能力，具有重要的军事意义。根据六种不同结构原理的冲击过载指示器的振动、跌落试验，评价精度、可靠性、使用寿命、有效使用频率范围以及对振动的响应，得出冲击过载指示器的冲击响应加速度一时间特性曲线，为筛选可靠的指示器，自行研制性能稳定，精度可靠的军用冲击过载指示器提供试验评价依据。