基于混沌神经网络的建筑节能综合评价

目的 构建建筑节能综合评价指标体系,对建筑节能进行综合评价.方法 针对神经网络BP算法收敛速度慢且容易陷入局部极小值问题,在常规神经网络中引入混沌神经元,建立混沌神经网络建筑节能综合评价模型.结果 根据建筑节能综合评价指标体系各量化指标,得出科学合理的评价结果 .通过实验仿真验证了该混沌学习算法的有效性和先进性.在输入参数相同的情况下,训练收敛到相同精度,CNN模型的训练次数少于BP网络模型,CNN模型用于建筑节能评价精度高.结论 运用混沌神经网络进行建筑节能综合评价的方法 是有效的.     

电化学沉积法制备稀土掺杂氧化钇荧光薄膜的发光性能

通过改变氧化钇薄膜中掺杂稀土元素的种类,来控制发光薄膜的荧光发射波长.利用电化学沉积法制备稀土掺杂氧化钇荧光薄膜.电化学沉积法制备的薄膜结晶效果好,掺杂离子分布较均匀,且不需要高温高压或者真空条件,成本很低.所制备的Y2O3:Ln荧光发光薄膜经XRD分析具有立方晶体结构;不同稀土掺杂的氧化钇呈现出不同的表面形貌;掺杂的Ln离子均匀地分布在薄膜中,经测试所有的Y2O3:Ln荧光发光薄膜都显示出较强的发射强度,且发光波长随着掺杂离子的不同而不同:Y2O3:Er3+发绿光,Y2O3:Ce3+发黄绿光,Y2 O3:Sm3+发蓝光,Y2O3:Pr3+发橙光.因此,电化学沉积法可用于制备具有不同发光波长的氧化钇荧光薄膜.     

改性石英砂的润湿性能研究

对经过改性处理之后的普通石英砂的润湿性能进行了研究。实验采用滴水穿透时间法（WDPT）、酒精溶液入渗法（MED）、接触角测定法三种方法。通过这三种方法来定性和定量地描述其润湿性能。实验结果表明：直接经过酸化处理的石英砂与经过硅烷化处理的石英砂的润湿性能有着明显的改变,前者较普通石英砂表现更为亲水,而后者表现出斥水性。此研究为用石英砂模拟不同润湿性能土壤提供了表面改性方法以及前期的理论准备。     

Methane absorption and application of mixed organic aggregate prepared from Span80 and alkaline salt

The water-based materials for mine gas absorption and explosion suppression were prepared, in which the mixed organic aggregate of Span80 and alkaline salt can be used as methane absorbent. Methane was used as a model of mine gas, and the absorptions of methane with different complex materials were studied using head space gas chromatography. Then the state of aqueous material was characterized with laser light scattering instrument and the effects of different complex materials on explosion suppression were preliminarily studied in explosion chamber which can simulate mine gas explosion. The research results showed that complex material could absorb methane and there was some correlation between the mean diameter of organic aggregate in aqueous material and the absorption effect. Additionally, the aqueous material could suppress the methane explosion to some degree. The material can absorb mine gas in atomization condition, therefore, degrease mine gas concentration and influence the distribution of mine gas in the space, and then suppress the mine gas explosion to some extent.     

Synthesis and self-assembly of comb oligomers having rigid racemic or chiral binaphthyl macrocyclic pendant groups

In this article, we described the synthesis of comb oligomers having rigid racemic or chiral binaphthyl macrocyclic pendant groups via the free radical polymerization. Oligomers obtained were well characterized by MALDI-TOF-MS, ¹H NMR, FT-IR, UV, CD and SEC. These comb oligomers having macrocyclic pendant groups showed very good solubility in common organic solvents at room temperature. Furthermore, the oligomers could self-assemble into different morphologies by dropping their THF solutions of different concentrations on the surface of water. At a relatively low concentration, the oligomers self-aggregated into hollow spheres. When the concentration was increased, the aggregates changed into solid spheres. The morphologies of the hollow or solid spheres were observed by TEM and ESEM.     

PP／交联POE共混物力学性能和形态的研究

采用过氧化二异丙苯（DCP）引发POE弹性体交联，溶解性实验与熔体流动速率实验结果表明，当DCP含量从0．5‰（质量含量，下同）增加至5．0‰时，凝胶含量从0．8％增加至12．8％，对应的共混物的熔体流动速率从2．80g／10min下降至0．80g／10min，这是POE弹性体交联的结果。将交联后的POE与PP共混，其与PP的共混物的冲击强度在较低的交联度时有一小范围的提高，当DCP含量超过2．0‰后，共混物的冲击性能明显下降。扫描电镜观察表明，随着POE交联度的增加，共混物中POE在基体中的分散明显变差，这与其冲击性能有很好的相关性。     

基于JMY-502模块的IC卡读写器的设计

随着非接触IC的大量使用,其成本越来越低。可以用单片机和IC读写模块来设计IC卡读写器,读写器分两种,一种是连接微机的,主要应用在收费管理部门,另一种是应用于现场收费部门,一般只具有自动收费功能。介绍了一种基于JMY-502的IC卡读卡器的设计,JMY-502是PHILIPS公司生产的微型嵌入式非接触式IC卡读写模块。给出了两种读卡器的硬件原理图及程序框图,读卡器实现了射频卡的制卡、收费及充值等功能,设计方案简单、成本低,适合各种收费场合。     

基于PCIe总线的B码解码卡的设计与实现

针对计算机时间同步需求,设计了一种基于PCI Express(PCIe)总线的IRIG-B码(B码)解码卡,该板卡接收外部B码信号并解调出B码时间信息,通过PCIe总线将B码时间信息传递给计算机进而完成计算机时间同步.测试结果表明,计算机能够同步到B码时间,且B码解码精度优于100 ns,能够满足多数应用需求.     

基于OTN技术的电力通信网络业务路由优化算法

本文基于OTN(Optical Transport Network;光传送网)技术提出了电力通信网络业务路由优化算法,通过仿真分析,结果表明此算法可优化电力通信网络既有OTN业务,实时有效均衡网络风险,提升OTN业务运行可靠性与稳定性;此算法的适应度函数优化设计,可促使现有网络业务路由分配的时候,更加趋向选取光信噪比参数值相对较高的光通道,所以通过此网络业务路由优化算法,OSNR(Optical Signal Noise Ratio;光信噪比)均值可显著提高;可实现网络业务路由优化,实现最佳风险均衡,且算法效率与收敛性较高,值得大力推广.