一种多宿主机构架的xPC实时仿真系统

在讨论了MATLAB环境下实时仿真实现方法的基础上,提出一种以“多宿主机”为构架的xPC实时仿真系统.相比于传统xPC系统,该系统大幅度提高了实时仿真系统的数据处理能力,并拓展了硬件的适用范围.在此基础上,设计了以2台宿主机、1台目标机为主结构的双目视觉2轮机器人实时目标跟踪系统;同时,辅以M文件 S函数驱动GUI的实时监控界面,增强了系统的动态监控能力.最后,经实际测试验证了所提出的多宿主机构架能够有效地应用于实时仿真系统的开发.     

PS/PC共混膜的干燥动力学

高分子共混物薄膜产品中的残余溶剂量与干燥过程密切相关,是影响高分子涂膜性能的重要因素之一。将石英晶体微天平（QCM）与自制强制空气对流干燥装置相结合,研究了不同共混比的聚苯乙烯（PS）/聚碳酸酯（PC）共混物的二氯甲烷铸膜液在不同热空气流速和温度下的干燥过程,并应用蠕变传递模型关联了干燥动力学实验数据。研究结果表明：高...     

唐钢1700生产线板带凸度规律

从生产实践角度论述了PC轧机在唐钢1700热连轧生产线上的使用情况,系统的分析了PC轧机的轧制原理以及投入使用对带钢板凸度产生的影响,研究了板带凸度随轧辊吨位的提高所产生的变化以及产生变化的原因,以便更好地改进工艺,提高板带质量.     

基于PC/104总线的飞机综合告警系统自动测试设备

分析了某型飞机综合告警系统的工作原理和测试需求，在此基础上，综合运用系统集成思想和现代测控技术，对该系统的测试方法进行了总结设计，构建了基于PC／104总线的自动测试系统，并给出了该系统的硬件结构和测试软件流程，使用结果表明该系统运行稳定可靠，测试结果准确可信。     

Can PC format CV reveal the true value of environmental resources in developing countries？ A laboratory experiment in China

This is a report on payment card format contingent valuation prediction validity in China based on the individual level comparison in a world heritage site evaluation. An evaluation index system of indicators is set up according to the consistency of the individual willingness to pay as well as the mean （or median）, the positive （or negative） proportion in the hypothetical context and those in the actual donation context. We took the conservation of a combined world heritage site Wuyi Mountain in China as the case study. By one-to-one individual level comparison, we demonstrate that people usually overstate their paying intention and overestimate their paying abilities, and the hypothetical individual WTP, mean, median, positive proportion and negative proportion are all significantly different from those in the actual context in this case. However, although the relationship between WTP and socioeconomic characteristics in the hypothetical context was not consistent with that in the actual situation, the survey still demonstrated the maximum support proportion and the least opponent proportion to the project when it was carried out. So we can conclude that in this case PC format CV is a poor indicator, partly owning to its free binding. We also find that when a person decides whether to pay （intention）, he or she is more affected by his/her knowledge structure and social duty; when he/she really decides on how much he/she will pay, income becomes the most important factor.     

Rapid induction of mRNAs forPC3 by partial hepatectomy and epidermal growth factor

The expression of immediate early gene plays a pivotal role in rat hepatocyte proliferation from G₀ to G₁ phases and the progression through G₁ phase of the cell cycle within several hours after 2/3 hepatectomy. We investigated the different gene expressions within 1 h after 2/3 hepatectomy by representational difference analysis. Sequence analysis indicated thatPC3 induced by NGF was a kind of immediate early gene and might be correlated with liver regeneration. Moreover, we found that 2/3 hepatectomy could induce the expressing ofPC3 mRNA by Northern blot with a peak 1–2 h after surgery. In primary cultures of rat hepatocytes, addition of EGF resulted in rapid and transient induction ofPC3 mRNA. It was first reported thatPC3 gene belongs to immediate early gene associated with liver regeneration.     

α-淀粉酶固态发酵的研究

研究了固态法发酵生产α－淀粉酶的工艺,用麸皮作原料,其优化条件是:在接种量0.08%,拌水比1：0.6,pH6.0,培养温度37℃,葡萄糖浓度15%,发酵72小时,其酶活力可达1742u/g。与液态发酵相比,固态发酵能有效地克服分解代谢产物的阻遏作用。     

EX40可编程控制器在传统机床改造中的应用

以液压折弯机电气控制系统的ＰＣ改造项目为例,提出了传统机床技术改造的基本方法和实施方案,并就ＥＸ４０可编程控制器在传统机技术改造的基本方法和实施方案,并就ＥＸ４０可编程控制器在传统机床技术改造中的应用进行探讨。     

可编程序控制器对热压机的控制

介绍了塑钢窗热压机的结构以及PLC控制系统的设计。     

反相高效液相法测定八角茴香果实中的莽草酸

用反相高效液相法在Waters Symmetry C18柱(5 μm,4.6 mm×150 mm i.d)上测定八角茴香果实中的莽草酸.工作参数为：流速0.5 mL/min;进样体积2 μL;检测波长220 nm;柱温30 ℃±1 ℃;流动相0.01 mol/L　K2HPO4磷酸盐缓冲液(pH值为3,用磷酸调配)和体积分数3%甲醇.平均回收率为97.76 %,RSD为1.937 %(n=5).