FA326A型并条机自调匀整系统的维护

总结Uster USG自调匀整系统的维护要点.介绍了Uster USG 自调匀整系统功能,并对其生产过程中易发生的FP传感器损坏、T&G罗拉咬合不平行、T&G罗拉轴承损坏、T&G罗拉轴弯曲变形、位移传感器检测头弯曲问题进行了分析,提出用好USG自调匀整系统必须由电器、设备、工艺三方面结合完成,.USG自调匀整系统故障易发部位在T&G罗拉和FP传感器,应对其进行重点维护.     

PC微机与松下FP1PLC远程通信的设计与实现

利用智能 Modem与公用电话网 ,可以实现 PC微机与松下 FP1PL C的远程通信 ,高级用户可以自己编制通信程序 ,开发远程监控系统。文中给出了实现远程通信的硬件配置及其通信参数设置 ,介绍了 N AL S FP1PL C的通信协议 ,编制了通信程序     

油茶籽油不同形态酚类化合物对油脂氧化稳定性的影响北大核心CSCD

为阐明酚类化合物的抗氧化机理及利用其协同增效作用延缓油脂氧化,对油茶籽油中游离酚(free phenolics,FP)、酯化酚(esterified phenolics,EP)及不溶性结合酚(insoluble-bound phenolics,ISP)的提取工艺进行优化,并采用Schaal烘箱法研究不同形态酚类化合物单独或复配作用对油茶籽油氧化稳定性的影响,分析不同形态酚类化合物的互作关系。结果表明:FP的最优提取工艺条件为料液比1∶15、提取温度45℃、提取时间1.5 h、提取次数3次,EP的最优提取工艺条件为碱解液与乙酸乙酯体积比1∶1、萃取次数3次,ISP的最优提取工艺条件为NaOH浓度0.25 mol/L、料液比1∶3、碱解时间6 h、碱解温度45℃。在最优条件下,油茶籽油中FP、EP及ISP含量分别为(43.43±2.05)mg/kg、(28.67±1.51)mg/kg及(65.87±1.34)mg/kg。不同形态酚类化合物均具有抑制氧化产物生成,增强油脂氧化稳定性的作用,其中EP+ISP的抗氧化性最强。各互作组分在油脂中均呈一定的拮抗作用,其中FP+EP+ISP的拮抗作用最强。     

基于FP和MZ法的光纤光栅传感解调技术研究

提出将FP法与非平衡MZ法相融合的解调方法,采用气体吸收(GC)加标准FP腔波长标定技术,对解调系统光电检测电路噪声进行严格控制,实现高精度解调要求,并对光路功率进行计算和合理分配。实验表明,该方法不仅能够实现多点温度信号及缓变应力信号的检测,也能够实现高频动态参数的实时检测,兼有FP法与非平衡MZ法两种解调技术的优点。     

Iron bioavailability from ferric pyrophosphate in rats fed with fructan-containing yacon (Smallanthus sonchifolius) flour

The effects of inulin-type fructans (ITF)-containing yacon flour (YF) on Fe bioavailability from ferric pyrophosphate (FP) were evaluated in Fe-deficient rats using the Hb repletion efficiency (HRE) assay. Weanling male Wistar rats were fed a low-Fe diet (12 mg/kg) for 15 days followed by 2 weeks of Fe repletion with diets providing 35 mg Fe/kg as either ferrous sulphate (FS) or FP, supplemented with 7.5% ITF as either YF or Raftilose (RAF), a purified ITF. ITF increased caecal fermentation, whereas YF was more butyrogenic than RAF. ITF improved HRE in FP-fed rats, and those fed YF had a higher relative biological value compared with those fed FP and RAF. Liver Fe was increased by ITF, but only YF led to values similar to those in the FS group. It is observed that ITF increased caecal fermentation and Fe bioavailability. These effects were more pronounced when YF was the ITF source.     

软件评价的工程方法

本文介绍ＬＯＣ及ＦＰ方法的思想，并结合软件评价方法的通用性和准确性要求，提出了对ＦＰ方法的改进方案，根据模糊数学理论确定了数学模型，提出了进一步工作的有关想法。     

对图形识别具有平移、旋转、伸缩不变性的神经网络

本文讨论如何构造在平面刚体运动和伸缩变换下，具有不变性模式识别能力的神经网络，即建立一个前向多层的神经网络，它具有如下性质，若网络能识别某一样本，同同时也能识别该样本经刚体运动及伸缩之后的任一状态，按文中给出了的构造方法，得到的网络具有如下性质：网络对运动和伸缩变换具有不变性，拓扑结构简单，网络的元件个数为Ｏ（ｎ）连接复杂性低，每个元件的输入端只需Ｏ（ｎ）（其中ｎ是输入向量的维数）学习和识别的速度     

Quality evaluation of transmission devices using the GA with FP

We propose a new method of evaluating the quality of a transmission device according to the acoustic data by using the genetic algorithm (GA) with floating points (FP). We extracted the spectrum average and the frequency variation from the acoustic data of operating transmission devices. Then we used the GA with FP to select the significant frequencies and made a quality evaluation rule to classify the good and defective products. For the frequency variation, we used the learning vector quantization (LVQ) to evaluate the quality of transmission devices. Using either the spectrum average or frequency variation alone might lead to incorrect results. However, we can ensure the final quality of transmission devices by using both frequency variation and spectrum average. The experimental results showed that the proposed method can perform the quality evaluation of transmission devices successfully and has better performance than the results obtained by the conventional GA with binary representation.This work was presented, in part, at the 8th International Symposium on Artificial Life and Robotics, Oita, Japan, January 24–26, 2003     

Variations of a passive safety containment for a BWR with active and passive safety systems

The paper presents variations of a certain passive safety containment for a near future BWR. It is tentatively named Mark S containment in the paper. It uses the operating dome as the upper secondary containment vessel (USCV) to where the pressure of the primary containment vessel (PCV) can be released through the upper vent pipes. One of the merits of the Mark S containment is very low peak pressure at severe accidents without venting the containment atmosphere to the environment. Another merit is the capability to submerge the PCV and the reactor pressure vessel (RPV) above the core level by flooding water from the gravity-driven cooling system (GDCS) pool and the upper pool. The third merit is robustness against external events such as a large commercial airplane crash owing to the reinforced concrete USCV. The Mark S containment is applicable to a large reactor that generates 1830 MW electric power. The paper presents several examples of BWRs that use the Mark S containment. In those examples active safety systems and passive safety systems function independently and constitute in-depth hybrid safety (IDHS). The concept of the IDHS is also presented in the paper.     

低能氦离子注入引入的量子阱混杂带隙波长蓝移

提出了采用低能氦离子注入多量子阱(MQW)材料和合适的快速退火条件,实现了MQW带隙波长的蓝移.用这种材料制作了FP腔激光器,与未注入器件相比,实现了37nm的激射波长蓝移.