汽车检测线的故障诊断专家系统设计

汽车安全性能检测站是综合运用现代检测技术、电子技术和计算机技术，对汽车实施不解体检测、诊断的场所。而检测线设备出现故障大大降低了汽车检测线的工作效率，针对此问题，提出了基于故障树的故障诊断专家系统的设计思想和实现方法。     

Inhibitory effect of the adenovirus type 5 E1A protein expressed in the yeast system on the human tumor cell growth

Adenovirus 5 type E1A as a tumor suppressor gene can inhibit tumor growth and enhance the sensitivity of chemotherapy and radiotherapy. E1A have the ability to integrate into the host genome, resulting in long-time expression that induces Rb gene inactivation and animal cells immortalization. This prompted us to select the E1A protein for treatment of cancer in order to overcome the limitations of E1A gene therapy. Thus, we firstly constructed E1A eucaryotic expression vector (pPIC9/E1A), transformated the pichia pastoris yeast cells (GS115) and screened the high-expressing recombinant strains. The positive yeast strains were cultured in the shake flask, and induced for 3 d. The crude E1A protein was purified using two steps of column chromatography on HiTrap Q and HiTrap SP. The purified E1A protein was identified by SDS-PAGE and Western blot. E1A protein was mostly located at cellular nuclear when Chariot delivered E1A protein into cells. The analysis in vitro indicated that the E1A protein arrested LN686 cell cycle at G2/M phase, and significantly inhibited the growth of LN686 tumor cells. The current studies firstly provided an experimental basis to further develop E1A protein for tumor treatment.     

基于动态温度调控的空调系统能耗预测

针对动态温度调控的空调系统能耗预测问题,设计了动态温度调控策略并通过EnergyPlus仿真得到空调系统逐时能耗数据集.在采用集成方法分析能耗的基础上,建立改进PSO算法优化BP神经网络(improved particle swarm optimization-back propagation neural netwo...     

二价硅化合物的研究（Ⅱ）──硅烯原料二苯乙二酮缩双苯胺的合成

用苯甲醛缩苯胺在氰化物催化下的氧化偶合法和二苯乙二酮与苯胺直接缩合法等两种不同方法合成了同一种原料二苯乙二酮缩双苯胺，并用元素分析，ＩＲ、ＵＶ和ＭＳ作了表征．     

试论萍乡谚语的艺术特色

萍乡有着深厚的文化积淀。本文从萍乡谚语的创造手法、萍乡谚语的语法结构、萍乡谚语的用词、萍乡谚语的节奏四个方面讨论萍乡谚语的艺术特色。     

汽车检测线的故障诊断专家系统--知识获取和存储

为了最大限度地降低因汽车检测线出现故障而造成的经济损失,汽车检测线的故障诊断日趋引起人们的关注,而诊断知识是故障诊断专家系统的坚实基础,本文讨论了诊断知识的获取方法、途径及存储,为诊断专家系统的构建提供了基础.     

Synchrotron radiation XRF microprobe investigation of elemental distribution in femoral head slice with osteoporosis

This note deals with the scanning of femoral head slices from both normal and osteoporosis subjects using synchrotron radiation X-ray fluorescence (SRXRF) microprobe technique. The sample preparation and experimental apparatus are described in detail. The quantitative computerized tomography (QCT) of elemental distribution, such as Ca, P, K, Fe, Zn, Sr and Pb in bone slice tissue including cartilage, substantial compact and substantial spongy, is investigated. Combined with the correlation between P, K, Zn, Sr and Ca, the loss way of minerals and the physiological functions of some metal elements in bone are also discussed.     

压电弹性体中沿抛物线分布的曲边裂纹问题

以各向异性 Stroh公式为基础 ,通过引入电学量与力学量的耦合效应 ,将各向异性压电介质平面变形问题的一般解表示出来 .然后结合映射变换技术推出该问题 Stroh解的特殊表达式 ,并进而分析沿抛物线边界存在 n条曲边裂纹时介质内的物理场 ,求解裂纹尖端的广义强度因子和广义裂面张开位移等断裂参数 .     

活跃连接下两个水平上的合作进化

本文研究活跃链接下两个水平（即组选择）的合作进化动态．给出了弱选择下策略的固定概率及策略更有优势的条件．然后以囚徒困境为例讨论了促进合作行为进化的条件，即如果支付收益比与总体内组数、组容量及各策略间接触率满足一定的不等式，则有利于合作行为的进化．最后，本文对模型进行了数值模拟，结果表明，本文模型可以有效促进合作行为的进化．