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The composition of Al-Cu-Mn ternary eutectic alloy was chosen to be Al-32.5wt.%Cu-0.6wt.%Mn to theAI2Cu and Al12CuMn2 so......
The nonlinear response of structures is usually evaluated by considering two accelerograms acting simultaneously along t......
An optimum design of a low noise amplifier (LNA) in S-band working at 2-4 GHz is described. Choosing FHC40LG high electr......
A time domain model is presented to study the vibrations of long slender cylinders placed in shear flow. Long slender cy......
The microstructure of polyurethane foam is disordered, which influences the foam heat conduction process significantly. ......
Target motion modes have a close relationship with the relative orientation of missile-totarget in three-dimensional hig......
In recent years,with the rapid growth of social network services(SNS),social networks pervade nearly every aspect of our......
The infrared transmission spectra of a 0.54-μm-thick Ge film and a 20-μm-thick Si film were experimentally measured. A......
A Holocene Yalu River-derived fine-grained deposit in the southeast coastal area of the Liaodong Pen
High-resolution seismic profiles and surface samples were studied in detail in order to determine the structures, proven......
Plate-impact experiments have been carried out to examine the effect of grain size and grain arrangement on the damage e......
- In this paper, using the theory of stochastic analysis of the response to earthquake load, a stochastic analysis meth......
WHETHER appreciating from outside the ingeniously designed pavilions,or inside to see exhibits fired by creativity and i......
In this letter,capacity estimation for Mobile Ad hoc NETworks (MANETs) using direc- tional antennas are studied.Two Matr......
This paper presents the flip-flop tone(FFT)DMAC protocol,a tone based MAC protocol using di-rectional antennas to solve......
Pancreatic cancer is the fourth leading cause of cancer death in the United States. While surgical resection remains the......
A system of three-unit networks with no self-connection is investigated, the general formula for bifurcation direction o......
,The effect of interfacial energy anisotropy on planar interface instability in a succinonitrile all
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Using ANSYS software, we developed a modeling program for several kinds of wire ropes with metal cores and built a geome......
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Porous rock chemical grouting simulation test was conducted using established large scale physical model.Chemical grout ......
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为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
The growth mechanism of the peritectic η phase involving the peritectic reaction and peritectic transformation in Cu-70......
将五光子晶体单模波导平行、邻近放置构成定向耦合器,依据自映像原理,数值分析了输入光场对称入射时,该系统中光的传播行为。基于......
目前我国节能规范通过对建筑围护结构传热系数限值的规定来保证最低节能目标,而未过多关注经济效益,在国家倡导合理配置资源的大环......
矿井水害是煤矿事故的危害之一,对矿井安全生产具有严重危害。为保障作业人员安全,必须做好煤矿水害防治工作。本文从煤矿水害分类......
摘 要：本文選择就卷烟包装印刷技术与发展方向这一论点进行分析和研究，为了确保分析和研究的全面性，设计如下研究框架：首先就现阶段卷......
变电站测量点信息缺失会导致站内继电保护无法正确响应故障,进而对整个电力系统安全、稳定运行造成严重影响。基于变电站与相邻站......
为了顺利爆破拆除闹市区地上11层、地下2层、建筑总高50m,建筑面积约5000m~2的框架剪力墙结构楼房,根据楼房结构特点和周围环境,选......
测向交叉定位精度低，而时差定位需要3个接收站并且对时统的要求较高．为降低系统的复杂度同时保证较高的定位精度，提出利用雷达作为外......
本文对基于机器视觉的路径识别方法进行了研究。通过对采集的路面图像进行中值滤波、边缘增强、动态阈值二值化．获得良好的路标图像......
本文结合房地产市场实际,提出基于房地产管理方向的工程管理专业建设要具有前瞻性、专业性和实践性,在房地产高等教育的教育思想、......
针对动态环境下有方向约束航迹规划问题,提出一种结合引导点的动态航迹规划方法。该方法沿约束方向基于圆拓展的方式产生引导点,并......
在振动切刀下部安装有定喷的喷嘴，振动切槽之前，超前进行定喷，将振动切槽与定喷两种工艺综合成一种工艺，构成一种新的薄防渗墙的施工工......
介绍了在130m宽运河水下顶进1800给水铜管中的方向与顶力的控制、防止涌水等主要技术及经验体会.......
利用乳链菌肽抗性菌株中乳链菌肽抗性和乳糖发酵紧密连锁的原因，在含有乳链菌肽、乳糖和溴甲酚紫的选择培养基上，从205个新鲜的牛奶......
实践问题一直是当代中国哲学研究的聚焦点。对实践哲学 2 0年较为集中的思考研究使实践哲学的内涵得到了多方面的展现 ,形成了多维......
<正>This paper proposes an improved Direction Of Arrival(DOA) estimation algorithm for asynchronous multipath Code Divis......
对一种在单脉冲雷达中采用的以调相信号的频率压缩和合并通道中压缩信号的限幅为基础的通道合并定向接收机(角度鉴别器 )进行了分......
拟予爆破拆除的水塔为细高、头重、倒锥壳薄壁钢筋砼结构，周围环境复杂，采用了定向倾倒爆破方案，爆破切口高为1．1m，长为4．69m，定向窗倾倒......
根据文献资料,近十年来探讨成人教学方法的研究可大致分为零散经验阶段和初步形成理论系统阶段.研究的重点是在对普通教育教学方法......
近年来在下川东地区针对下古生界-震旦系持续开展风险勘探,该区块纵向上发育3套构造组合,断层发育,存在多套压力系统,目的层龙王庙......
为降低玉米种子脱粒过程中的机械损伤，掌握玉米籽粒冲击破碎机理，在跌落式冲击试验台上，对不同品种的玉米籽粒进行了冲击破碎试验，分析......
图书馆的服务工作是一个十分具体而又细致的工作。往往是图书馆藏有很多文献资料,但读者很难快捷、准确地找到自己所需的文献资料......
本文对１５Ｍｏ３钢冶成分的选定，生产工艺，中温性能、Ｚ向性能，钢的组织检验以及合适的正火温度的选择作了全面的分析。......
提出了一种自动提取地球物理位场水平一阶导数图象中局部极大 (极小 )值线的有效方法 .该方法的基本原理是 ,首先用方向剖面法识别......
针对镍基单晶高温合金的服役条件和机构特点，对γ’颗粒在[111]取向加载时的定向粗化趋势进行了比较系统的研究．通过实验得到镍基单......
文中提出了一种新型的递归中值滤波器，将滤波算法转化为一种优化处理，兼顾了滤波处理的光滑连续性及抑制噪声的累积特性，可有效地消除......
山东煤田地质机械厂于2014年研制了液压定向A型系列钻塔,获山东省煤田地质局科技一等奖。该文以ZT13AY液压塔为例着重阐述钻塔的结......
研究了无线Mesh骨干网部署优化问题，结合网络的拓扑结构及定向天线技术的传输特点对无线Mesh骨干网进行优化部署，提出一种基于Delaun......
