配风比对燃油燃烧器燃烧过程影响的数值模拟

模拟燃烧器不同配风比状况下的燃烧器内温度场分布,分析燃烧器燃烧过程的火焰结构温度。模拟结果表明：配风比为一次风量（G1）占总风量（G）的30％,二次风量（G2）占总风量的70％时,火焰结构和火焰温度分布最合理。     

粮食仓房的通风口改进

分析了原有通风系统通风口在设计中存在的问题、对储粮的影响,提出了对通风口的设计要求与改进方案．     

论价值主体

从价值的词源上、主客体关系上、价值发生学上考察,价值主体是人或人类社会。     

悬挂对飞行器静稳定性影响的分析论证

静稳定性与飞行器设计及飞行品质有密切关系。用建模的思想,把复杂的实际系统合理简化,在理论上论证了悬挂稳定的可行性,研究了稳定效果与影响因素之间的关系,并提出了设计改进方案,作为进一步实验论证的理论依据。     

Combination of interference alignment and beamforming in cellular networks

In this paper, we propose two joint transmit-receive iterative algorithms without the cooperation between different base stations based on the idea of interference alignment (IA) to improve the throughput of relay backhaul links in cellular networks for the case of imperfect channel knowledge,which can be implemented with small changes to existing TD-LTE standards. Unlike the previous interference alignment algorithms’ only reducing the sum interference to the other receivers at the transmitter or the sum received Multi-user interference (MUI) at the receiver, our algorithm shapes the transmission of each data stream at transmitters in order not only to minimize interference to the other users, but also to minimize the interference between different streams objected to the same user, suppressing the MUI and Multi-stream interference (MSI) at receivers. The proposed algorithm I is to maximize the SINR at receivers. But the complexity is relatively high. Algorithm II only needs linear operations and sacrifices a little performance for much lower complexity compared to the Maximize SINR iterative algorithm which needs the inversion operation of matrix. It is also proved that the algorithm converges monotonically. The simulation results show that the techniques have considerable performance gain compared with the previous algorithms. Further research about power allocation is also discussed.     

钢筋混凝土结构的弹塑性动力时程分析研究

介绍弹塑性动力时程分析的基本原理和分析方法,并以某钢筋混凝土高层双塔连体结构为研究对象,建立大楼结构的分析模型,分别对结构进行了不同设防烈度和不同场地类别下的弹塑性动力时程分析,并进一步考虑P-Δ效应对结构的影响,对结构的抗震性能进行评估.     

基坑围护方案的优化设计

阐述了基坑围护方案优选应考虑的原则和方法.运用模糊控制原理,科学地建立了一定工程条件下基坑围护方案的模糊控制识别矩阵,系统地得到了基坑围护方案优选的一般过程,并给出了一工程实例.结果表明,采用该方法进行的基坑围护方案优选,可获得满意的效果,具有一定推广价值.     

基于Python的GTK+与VTK混合编程及应用

采用Python语言封装GTK+与VTK的函数接口,实现VTK渲染窗口在GTK+界面中的嵌入.通过Glade图形界面生成器生成GTK+图形界面,采用C／C+〖KG-*3]+语言编写GUI应用程序功能模块并封装成python接口函数库,完成GTK+界面模块、渲染模块和功能模块的有机集成.实例证明该方法可有效提高应用程序开发效率,研发的应用程序系统可移植性好、运行效率高.     

无水乙醇生产工艺的探讨

分子筛固定床吸附法生产无水乙醇,工艺简单可靠,产品质量优,是一种环保、节能型工艺。