一类奇摄动边值问题的边界层

讨论一类最高阶导数项带有小参数的二阶半线性方程奇摄动Dirichlet边值问题. 通过直接展开法, 构造了问题解的外部展开式, 并引用伸长变量分别在区域内部和边界层附近构造了内层解和边界层解. 利用匹配原理将对应的外部解、 内层解和边界层解分别进行匹配, 构造解的合成展开式. 得到了原奇摄动边值问题解在整个区间内一致有效的渐近展开式.     

试论室内设计中的冷暖设计

居室空间的冷暖度既是统一的,也是互补的。巧妙运用材质的冷暖色调来调节或控制居室的冷暖感觉,可以营造出温馨健康的居住空间,使居住者拥有良好的身心状态。     

法锥条件下非凸规划的非内点同伦方法

利用不可行的内点同伦方法(CHIIP)求解非凸规划问题的KKT点. 证明了当非凸规划问题的可行域满足法锥条件时, 跟踪同伦方程产生的同伦曲线可得到非凸规划问题的KKT点, 且该算法具有全局收敛性.     

基于Android平台嵌入式弹道仿真系统研究与实现

介绍了Android嵌入式便携设备操作系统的特点及其在军事领域中的应用,分析了基于Android平台开发弹道仿真计算系统存在的关键技术难题,建立了面向对象的典型外弹道仿真模型,在不同硬件平台上进行了仿真计算并分析了计算的效率与精度,仿真计算结果表明,基于Android操作系统的便携式弹道仿真计算系统能够满足军队作战需求.     

Magnetoresistance of the thin film ferromagnetic nanoconstrictions

The magnetoresistance and I-V characteristics at different temperatures of the thin film ferromagnetic nanoconstrictions of variable width (from 20 to 250 nm) and 10 nm thicknesses, fabricated by electron beam lithography and vacuum thin film deposition are compared. The magnetoresistance and resistance of the thin film ferromagnetic nanoconstrictions are not related to the width of the nanoconstrictions. Instead the resistance of the local nano-region in the middle of the thin film ferromagnetic nanoconstriction has only a minor role compared to that of the two microscale thin film ferromagnetic electrodes, which contribute the majority of the measured resistance. The magnetoresistances of the thin film ferromagnetic nanoconstrictions and a 0.2 cm × 0.8 cm thin ferromagnetic film deposited under the same conditions were also compared; the thin film ferromagnetic nanoconstrictions have higher magnetoresistances than the thin ferromagnetic film, which implies that the measured magnetoresistance of the thin film ferromagnetic nanoconstrictions comes mainly from the local nano-region in their centers. In conclusion, the measured magnetoresistance of the whole sample is similar to the anisotropic magnetoresistance, because the resistance of the two microscale thin film ferromagnetic electrodes is much higher than that of the local nano-region in the middle of the samples. Comparing the experimental results for the thin film ferromagnetic nanoconstrictions and the thin ferromagnetic film reveals that the magnetoresistance of the local nano-region in the middle of the sample is much higher than that of the two microscale thin film ferromagnetic electrodes attached to it.     

基于Vray材质表达真实性在室内效果图制作中的研究

材质传达的真实性是室内设计方案表现的重要因素,真实的材质表现能准确的诠释设计师对于方案中各个结构、装饰物、家具等的质感设计,也更能与客户的审美产生共鸣.本文研究了Vray材质编辑的基本原理,并提供室内常用材质调节的基本思路,希望能够为室内设计人员的设计与表现提供参考.     

Consecutive tracking for ballistic missile based on bearings-only during boost phase

This paper proposes a modified centralized shifted Rayleigh filter(MCSRF) algorithm for tracking boost phase of ballistic missile(BM) trajectory with a highly nonlinear dynamical model based on bearings-only.This paper contributes three folds.Firstly,the mathematical model of an MCSRF for multiple passive sensors is derived.Then,minimum entropy based onedimensional optimization search to adaptively adjust the probability of the different filters for real time state estimation is deployed.Finally,the unscented transform(UT) is introduced to resolve the asymmetric state estimation problem.Simulation results show that the proposed algorithm can consecutively track the BM precisely during the boost phase.In comparison with the unscented Kalman filter(UKF) algorithm,the proposed algorithm effectively reduces the tracking position and velocity root mean square(RMS) errors,which will make more sense for early precision interception.     

对《室内设计》课程中工学结合模式的研究

从《室内设计》课程的特点及工学结合发展形势的分析出发，阐述工学结合模式的重要意义；除了对常见工学结合模式进行更加深入分析与探索之外，着眼于室内设计的行业特点与地域特点，分析工学结合模式的关键因素，探索独具特点的可行途径，并针对工学结合模式中存在的问题进行分析，提出建设性总体思路。     

关于公式A_g=α_gA的理论证明

在推导膛内两相流控制方程中,一些文献采用了公式A_g=α_gA。其中α_g 为空隙度即气相体积份数.本文通过对随机分布的火药颗粒定义一个概率分布函数,严格地从数学上对此式加以了证明.     

空间罗经不变性条件的实现及非理想情况下的机动误差

本文根据依斯林斯基关于空间罗经的思想，提出改造国产航海－Ⅲ型罗经实现空间罗经的设想，并对非理想情况下的稳态误差和第一类机动误差进行了分析，借助于计算机进行仿真，从而说明了此方案的可行性，为进一步分析研究和工程实现提供依据。