longitudin相关论文
AIM: To determine whether Helicobacter pylori (H. pylori)infected children have reduced body weight (BW) and height (BH)......
The transmission and emission spectra of a new crystal, Nd:NaY(WO4)2(Nd:NYW) have been measured. Using a Ti: Sapphire la......
Oscillating guided modes in a symmetric five-layer slab waveguide with anisotropic-dispersive left-h
A symmetric five-layer slab waveguide with anisotropic and dispersive left-handed material (LHM) in the core and rightha......
With the right choice of parameters in the free electron laser (FEL) scheme, the undulator can be primarily operated at ......
An ultra narrow linewidth fiber laser is presented, which is composed of a ring cavity laser and a linewidth-narrowing m......
This study addresses the effectiveness of a simple stiffness tailoring concept to delay damage initiation,control damage......
Test analysis on prestressed concrete composite beams with steel boxes subjected to torsion and comb
While modern prestressed techniques have improved the torsion properties of high-strength concrete (HSC) composite beams......
Inflammatory bowel diseases(IBD) such as Crohn’s disease and ulcerative colitis are chronic-remittent inflammatory diso......
Hierarchical Linear Model Approach to the Determinants of Activities of Daily Living of Chinese Olde
Based on the Chinese longitudinal healthy longevity survey conducted in 2002, this paper uses hierarchical linear model ......
Collision mitigation and vehicle transportation safety using integrated vehicle dynamics control sys
The aim of this paper is to investigate the effect of vehicle dynamics control systems(VDCS) on both the collision of th......
CH-DTL is a new development of accelerator structure, which has high shunt impedance and simple structure. The beam dyna......
Superconducting deflecting cavities can be used in synchrotron light source to generate subpico- second X-ray pulses whi......
Beam dynamics studies of the photo-injector in low-charge operation mode for the ERL test facility a
The energy recovery linac test facility(ERL-TF), which is a compact ERL-FEL(free electron laser)two-purpose machine, was......
AIM: To investigate the relationship between the economy and the adult prevalence of fatty liver disease(FLD) in mainlan......
The experimental measurements and numerical simulations are performed to study ultrasonic nonlinear responses from the p......
Lock-in phenomenon in ring laser gyroscopes is directly related to effective backscattering,which includes both backscat......
,Near-field characteristics of highly non-paraxial subwavelength optical fields with hybrid states o
The vectorial structure of an optical field with hybrid states of polarization (SoP) in the near-field is studied by usi......
Morphometric and geological conditions for sediment accumulation in the Udava River,Outer Carpathian
本文通过对荣华二采区10...
企业之间通过协议或默契来协调自己的市场行为，共同限制竞争就是一种常见的现象。禁止联合限制竞争制度是各国反垄断法基本实体制度......
车辆纵向速度、轮胎力的准确获取是车辆主动安全控制的前提和基础,由于直接测量纵向速度和轮胎力的车载传感器价格极其昂贵,提出了......
作者在全面地分析影响河道水温变化各种因素的基础上,根据大渡河流域实测资料所推荐的有关计算纵向离散系数的经验公式.确定了一种......
当流体流过纵向涡发生器时，会在纵向涡发生器后产生沿纵向移动的涡旋，这些纵向涡的强烈运动，促进了主流区与传热壁面附近的流体搅混，削......
目的纵向分析广州市《出生医学证明》的管理使用情况，依法加强证件的管理。方法对2005至2010年广州市《出生医学证明》管理使用情况......
本文针对勘查技术与工程专业的声波测井课程,介绍了所研制的模拟系统,并设计了相关的实验内容。在过去简单测量岩石纵波速度的基础......
利用自行研制的岩石加温装置和RNT-150C岩石力学试验机，对石灰岩和砂岩试样高温后的力学特性进行了试验研究。试验结果表明，随着温度......
为研究三塔自锚式悬索桥的索塔纵向刚度对结构整体受力的影响,首先,阐述了悬索桥的计算理论和增大悬索桥纵向刚度的方法,并对其中......
提出了京九铁路浰江大桥桥上无缝线路设计方案，并基于MATLAB语言编制了桥上无缝线路纵向力计算软件。计算结果表明：浰江大桥桥上可不......
针对当前煤矿复采工作研究中,普采作业形成残煤区的研究较少等问题,分析了残煤旧采区工作面上覆岩层的垮落原因,对于纵三带的变化......
在刀具磨损曲线的基础上，用纵车简速试验法来评定刀具的切削性能和金属材料的可切削性。采用最大速度进行完全钝化的试验，在正常磨损......
通过对一个洲滩型血吸虫病流行村4年的流行病学纵向观察，发现该地传染源种类有牛和人，而牛为主要传染源；江滩感染性钉螺密度较高，流行......
针对叶片垂直分片机使用过程中出现的劈坏烟箱、纵向移动刀架失控和系统无报警功能等问题,分析故障产生的原因,并对其控制系统进行......
“635”水利枢纽总干进水闸胸墙裂缝主要是温度裂缝和水平施工冷缝.通过对钢筋混凝土进行结构校核,表明混凝土结构不能满足抗裂要......
通过无裂纹、单边裂纹和双边裂纹灰铸铁试件对铸铁的拉伸破坏行为进行了试验研究。无裂纹铸铁受到拉伸载荷作用时呈现突然断裂，研究......
建立了1万吨级重载列车纵向动力学仿真模型，使用Runge-Kutta法对其运动微分方程进行了求解，并编制了Fortran软件求解程序。以紧急制......
采用基于固有应变法的弹性有限元分析预测大型复杂结构的焊接变形的前提是必须已知焊缝附近的固有变形。结构的焊接残余应力与焊接......
在分析桥头跳车机理的基础上，利用Excel作为设计和计算工具，实现了一个简单的桥头加铺纵坡系统。以沪杭甬高速公路设计案例为基础，提......
为研究桥上板式无砟轨道无缝线路受力变形规律,基于有限元法建立了5跨双线简支梁桥上板式无砟轨道空间整体刚臂模型,计算并分析了......
以南京地铁一号线穿越砂性地层盾构隧道为研究对象，对管片环施工全过程和稳定期进行了现场系统研究。采用考虑结构与地层相互作用的......
介绍几种大功率采煤机在现代化矿井生产中的应用，提出大功率采煤机新的发展方向。...
在研究纵横波速度及其比值（vp／vs）与含水饱和度的关系、纵横波速度比与火成岩岩性和孔隙度关系的基础上，利用砩／弧与横波交会识别火成岩......
本文运用有限元法，建立了重载列车轮轨动力作用分析模型，该模型考虑了钢轨初始不平顺引起的轨道结构竖向振动及由牵引力和制动力引力......
从桥梁选型和桥跨布置两方面介绍了山区桥梁的设计，并对山区桥梁设计应注意的问题进行了分析，从涵位的选择、选型、纵坡的设置、涵洞......
结合运城市学苑南路工程地质概况，就该道路设计中遇到的湿陷性土层及硫酸盐渍土的处理、地下水泉眼的处理和地势高差30m的纵坡设计......
