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This paper presents a review of studies of interference absorbing materials,which come in three basic types:normal interference absorber,Jauman absorber and FSS absorber. And we particularize the structures,applications and methods of analysis and design of each of these types. Results show that the FSS absorber provides a better absorption ability and is more practicable,and that active multi-layer FSS absorber represents a new direction of interference absorbing material research.

综合介绍了干涉型多层吸波材料的吸波原理及其国内外研究现状,并分别研究了干涉型多层吸波材料三种基本类型:一般干涉型吸波材料、Jauman吸收体和频率选择表面吸收体的一般结构、应用以及分析与设计方法,得出FSS吸收体较之其他类型具有更优的吸收性能和更高的实用价值,最后指出了干涉型吸波材料发展的新方向是有源FSS吸收体。

This paper presents a review of studies of interference absorbing materials, which come in three basic types: normal interference absorber, Jauman absorber and FSS absorber. And we particularize the structures, applications and methods of analysis and design of each of these types. Results show that the FSS absorber provides a better absorption ability and is more practicable, and that active multi-layer FSS absorber represents a new direction of interference absorbing material research.

综合介绍了干涉型多层吸波材料的吸波原理及其国内外研究现状,并分别研究了干涉型多层吸波材料三种基本类型:一般干步型吸波材料、Jauman吸收体和频率选择表面吸收体的一般结构、应用以及分析与设计方法,得出FSS吸收体较之其他类型具有更优的吸收性能和更高的实用价位,最后指出了干涉型吸波材料发展的新方向是有源FSS吸收体。

Results among 15 cases, eight cases of Loose bodies about right keen joint;three cases of left keen joint;three cases of both keen joint ;one case of pilosity dissociates bodies;two cases with joint effusion ;six cases with soft tissue swelling.16-slice SCT with 3D reconstruction demonstrated stereoscopic morphology of normal and lesions clearly with MPR correctly demonstrated details and density ,shape and size of lesions.conclusions Sixteen-slice SCT with 3D and MPR techniques can provide valuable spatial information of diseases in bones and joints of wrist and foot which correlated well with that of pathological anatomy .

结果 15例患者中,右侧膝关节游离体8例,左侧3例,双侧3例,多发游离体1例;其中2例伴有关节积液,6例有关节周围软组织肿胀。16层螺旋CT的3-D图像可清晰显示游离体的立体形态,MPR图像则可以多平面,多角度地观察游离体的大小、形态、密度、位置,对病变显示满意。结论多层螺旋CT重建能提供骨关节病变非常有价值的空间关系信息,其表现接近病理解剖,临床应用价值大,有利于临床医师选择治疗方案、制订手术计划。

A pistil composed of two or more united carpels .Having fruit or pistils with two or more carpels .

果为多心皮的,有多子房雌蕊的有带两层或更多层心皮的果实或雌蕊的

An original polarizing plate having a plurality of layers is fixed on a first principal surface of an ultrahigh molecular weight polyethylene porous sheet by drawing from the opposite side. The original polarizing plate is cut by a blade moving across the thickness of the original polarizing plate by using the porous sheet as a cutting mat to obtain a polarizing plate having a plurality of layers.

将由多层构成的偏光原板从超高分子量聚乙烯树脂多孔质薄板(1)的一主面吸引、固定在该主面的相反侧的主面上,以多孔质薄板(1)作为切割垫,将偏光原板(2)用在其厚度方向移动的刀刃(4)切断,得到由多层构成的偏光板(3)。

Furthermore, how to apply the model efficiently in practice is deeply discussed. As the variance produced by the forecasting model as concerned, the real-time revised method of hydrological forecasting is highlighted. Next arranged, the multi-stratum recursive prediction model is put forward to forecast the error series that is a dynamic system. Later, an error selfregressive multi-stratum recursive prediction model is set up as well as a current algorithm offered. Finally, the difference collated model and the gloss control method, which are devoted to updating the mid-long term hydrological forecasting during the meditate period, are put forward.

在综合评述中长期水文预报现有方法和模型的基础上,采用时间序列分析方法,建立中长期水文预报的时间序列组合模型,并对模型如何在实际中有效应用作了较为深入的探讨;针对模型预报所产生的误差,又重点研究了水文预报实时修正方法:提出了采用多层递阶预报方法对误差序列这一动态系统进行预报,建立了误差自回归多层递阶预报模型,并提出了较为通用的解算方法;给出了水文中长期预报中期修正的残差相关模型和总量控制方法。

To find the mechanism of refluence in the flue,authors conduct the numerical simulation of liquid-field in the flue of multilayer building by adopting K-ε turbulent flow model and two-phase flow theory,and plots the charts that the pressure,consistency and velocity distribute in the flue.

为了探明多层住宅烟道串味的机理,采用κ-ε湍流模型,利用两相流理论,对多层住宅烟道内的流场进行数值模拟,得到烟道内的压强、速度和体积分数分布图。结果表明:在第一支烟道与主烟道的交汇处压强梯度较大,一楼排放的烟气大部分向上流动,第二支烟道附近油烟的体积分数梯度大

The transepicondylar axis of different position has no effect on volume rendering technique measuring the humeral head retroversion angle with multi slice spiral CT.The top view at which lateral epicondyle of the humerus showing minitriangulum and the anterior surface of the distal humerus articulation with the forearm being shaded is more simple,faster and precise for the volume rendering technique measuring the humeral head retroversion angle with multi slice spiral CT.

结论]肱骨头扭转角变异较大,肩关节假体扭转角设计应个性化;肱骨远端不同位置内外上髁轴线对多层螺旋CT容积再现测量肱骨头扭转角没有影响;俯视位观察肱骨,当外上髁露出呈小三角形、肱骨远端前关节面被肱骨头遮盖重叠的位置是多层螺旋CT三维重建测量肱骨头扭转角的更简单、更快捷而且准确的测量位置。

Ti/TiN/N/ZrN multi-layer film is deposited on head of rotated riveter by using multi-arc ion plating method.

采用多弧离子镀法在旋铆头沉积Ti/TiN/N/ZrN多层膜处理,并对旋铆头的失效形式、膜层的组织形貌、显微硬度、耐磨性能进行了分析和讨论。

Using the edited program, the deflection, stresses on three directions, principal stresses, maximum shearing stress and principal strain at any computing point under any number of wheel loads in a road pavement structure with any number of layers could be computed.

本文叙述如何根据非轴对称半空间弹性体应力和位移的基本表达式以及由多层体系边界条件建立的线性方程组编制计算机程序,运用巳编制的计算程序,可在袖珍计算机和微型计算机上求得多层弹性体系内任意点的应力和位

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随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

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关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。