适用于飞机结冰适航取证加速的分析验证/取证思路

飞机结冰问题研究目前主要有3大手段:数值模拟、风洞试验和飞行试验。这3大手段有着各自的局限性,其中,又以飞行试验最为耗费时间和资金。文中总结了机结冰相关研究方法现状,分析了各种方法的优势与局限性,介绍了模拟分析方法(Certification/Qualification by Analysis,CQbA)方法,给出了可用于CQbA相关工作的软件和设备简介。CQbA方法主要以数值模拟和风洞试验相结合的形式进行研究,强调各方法自身优点的协同关系,进行飞机结冰问题的研究和适航相关结果的认证,以实现高效、经济的研究过程。     

高超音速后掠激波与边界层干扰流场特性

应用表面油流和液晶温度显示、表面热流率和压力测量四种测试技术,在Ma_∞=7.8、单位长度雷诺数尺Re_∞=3.5×10~7/m条件下,研究了30°迎角尖前缘翼面诱导激波和湍流边界层干扰流场特性。结果表明:表面流动是准锥型,在强相互作用下,流动发生了二次分离和再附,导致表面油流线的流向角、温度、热流率和压力分布均出现明显的凹坑。     

舱内航天服散热途径分析

为分析常压下航天员穿着舱内航天服时的散热性能，６名健康男性青年按二次复合设计分组共进行２４人次试验，经分析计算了获得了服装各散热途径的散热率随通风气源参数及人体活动水平变化的数学模型。对影响服装散热性能的因素及服装散热特性进行了分析讨论。     

The concept of selecting the main parameters of a lightweight airplane with regard to the requirements of the contemporary Russian market

The basic principles of selecting some design parameters of a lightweight airplane for the contemporary Russian market are presented. Recommendations for selecting these parameters with the service requirements specified are given based on the study performed.     

Theoretical determination of shot peening process parameters

In this paper, a proper choice of technological parameters for a shot peening process is considered, namely, the shot diameter, shot blast velocity, density of shot material, and depth of a plastically deformed layer-depending on the material being processed. The data presented can be used in calculations of technological parameters of FV monolithic panel shaping.     

农村家庭资产配置与金融市场参与的实证研究——以浙江金华地区为例

通过金融深化增加农村家庭参与金融市场的机会，提高农村家庭的福利，让金融为广大农村家庭服务，改善其资源配置，解决农村金融抑制的问题，是当前金融改革与发展的一个重要内容。文章将农村家庭的实物资产分为生活型与生产投资型，将金融资产分为安全型和风险型，根据问卷调查获取的数据建立Logistic回归模型，对东部地区农村家庭实物资产配置和参与金融市场的决定因素进行研究，探讨当前农村的金融深化与金融发展路径。     

线性调频半导体激光衍射光栅干涉仪

介绍一种以线性调频半导体激光为光源的衍射光栅干涉仪。激光与光栅上衍射的±１级衍射波会合，由于有光程差而发生光拍频，测量拍频信号的相位移则可测得光栅的位移。设计了一种克服激光波长漂移和空气折射率变化影响的对称差动光路，使这种方法达到实用化的程度，分辨力达到纳米级。此外，还介绍了应用于接触干涉仪的实验情况。     

Current status and future plans for the general antiparticle spectrometer (GAPS)

We discuss current progress and future plans for the general antiparticle spectrometer experiment (GAPS). GAPS detects antideuterons through the X-rays and pions emitted during the deexcitation of exotic atoms formed when the antideuterons are slowed down and stopped in targets. GAPS provides an exceptionally sensitive means to detect cosmic-ray antideuterons. Cosmic-ray antideuterons can provide indirect evidence for the existence of dark matter in such form as neutralinos or Kaluza–Klein particles. We describe results of accelerator testing of GAPS prototypes, tentative design concepts for a flight GAPS detector, and near-term plans for flying a GAPS prototype on a balloon.     

Plasma convection model and generation of longitudinal currents in the earth's magnetosphere

The aim of this paper is to investigate processes in the magnetosphere and in particular the problems of the interaction of the solar wind with the Earth's magnetic field to produce large-scale convection, electric fields and longitudinal currents in the magnetosphere. The investigation is carried out in the frame of magnetic hydrodynamics. The reason for such an approach can be found in /1/. When calculating the transfer coefficients, the Böhm approximation is used, i.e. it is considered that the plasma in the near-equatorial part of the magnetosphere (quasiplanar geometry is used in the problem for simplification) is sufficiently turbulent that the condition ωτ ≈ 1 is valid (ω is the Larmor frequency of electrons, τ is effective time between two Quasi-collisions). The main subjects of investigation in this paper are the input near the equatorial boundary layer and the plasma layer of the magnetosphere tail.