波脊

RESULTS:① No obvious sight defect was detected with the quantitative detection of automatic sight apparatus.② ECT cerebrospinal fluid imaging thought that proximal frontal sinus of right cerebral frontal lobe was the leakage, and the liquid glucose in nasal cavity was quantitatively confirmed to be cerebrospinal fluid.③ Cranial CT showed that cleft could be observed in bilateral frontal lobe and lateral ventricle, low-density gas shadow could be observed in cisterna ambiens, cortex of frontal bone was discontinuous, and bone matrix was trapped.④ ECG showed that right forehead and temple had irregular slow wave, and attack of θ wave. Brain topographic mapping showed that the δ power value of right forehead was increased.⑤ EPQ: The scores of extraversion-introversion, neuroticism, psychoticism and lie were 55, 55, 80 and 50 respectively;⑥ MMPI: The code showed a mode of 69/96, indicating that the brain organ tended to paranoid schizophrenia.

结果：①自动视野仪定量检测未发现明确视野缺损；②ECT脑脊液显像考虑右侧大脑额叶近额窦部为漏口；鼻腔液体糖定量证实是脑脊液；③头颅CT额叶及侧脑室双侧裂，环池见低密度气体影，额骨骨皮质不连续，骨质下陷；④脑电图右额、颞不规则慢波，有θ波发作；脑电地形图：右额δ功率值增高；⑤艾森克人格问卷：内外向分55、神经质分55，精神质分80，掩饰分50；⑥明尼苏达多相人格调查表：编码显示69/96模式，提示脑器质性偏执型精神分裂症；⑦症状自评量表：总分147、阳性项目分37，躯体化、强迫状态、人际关系敏感、焦虑、敌对和其他6项目平均分超过常模。

A method based on wavelet analysis and wavelet ridge is proposed to demodulate the UM71 signal and extract its information features.

针对UM 71信号的信息特征，提出了基于小波分析技术、利用小波脊线对UM 71信号进行解调进而提取UM 71信号信息特征的方法，给出了小波算法解调过程，通过计算机仿真，证明了此方法的有效性。

According to the field plot of TE10 wave mode in rectangular ridged waveguide,the equivalent capacitance and equivalent inductance are approximately calculated by quasi-static method,and the resonant frequency which is namely cutoff frequency is derived.

由矩形正脊波导中主模TE10波模的分布结构特征，用准静态方法近似的计算出等效电容和等效电感，从而计算出谐振频率，也就是矩形正脊波导的截止频率。

Based on a localization principle and subband decomposition, monoscale ridgelet and curvelet were proposed, both of which were derived from ridgelet transform and can efficiently deal with smooth images with smooth edges including straight and curve singularity. They, hence, are of better application potention. sparse representation;optimal basis;ridgelet;curvelet;image denoising;non-parametric estimation

单尺度脊波和Curvelet变换由脊波变换发展而来，分别利用了函数局部化和频带剖分的思想，将脊波理论发展到了一个更高的阶段，这两种变换都能"近似最优"的表示直线和曲线奇异，因而具有更好的应用前景。

Making use of field matching method,combining with the variational method,the dispersion equation of the ridge loaded ring plane slow wave structure and small signal gain of this type of TWT are presented in this paper.

脊加载环板行波管是一种频带相对较宽的大功率行波管，本文用场匹配和变分原理相结合的方法，研究了脊加载环板慢波结构的导波特性及这种行波管的小信号、大信号特性，讨论了结构的几何尺寸及电子注参量对慢波的传播特性、小信号增益及注波互作用非线性效应的影响。

To detect wave forms lineated on the seafloor, tow fish of sidescan sonar shall be towed in the direction parallel to their strike, and the image of hinge line of sand waves shall be located in the half way of the slant range being set.

侧扫声纳於侦测波形的最佳成像方位角，为拖鱼指向与波脊平行，并且坐落在测距一半以上，可增加地形起伏的辨识率。

The general 2-D FDFD equations in the Cartesian coordinate system and difference equations for the trapezoidal bevel edge of the waveguide are presented. Transmission characteristics of single and double trapezoidal-ridge waveguides are then analyzed using these equations.

采用直角坐标系中2-D FDFD的一般分析公式和波导梯形斜边上的差分公式，对梯形单脊矩形波导和梯形双脊矩形波导的传播特性进行了分析。

In view of the development about the certain airborne radar antenna array,considering the structural features of antenna array,analyse the cruces in manufacturing of feed cavity and radiant plate,and present the corresponding solution by mainly dealing with precise positioning style,delicate clamp design,error distribution and compensation method,high speed machining technology design,machining simulation and program optimizing.

某机载雷达平面裂缝阵列天线的单面阵如图1所示。该面阵布置多路裂缝线源，共分布384处长度各不相同的辐射裂缝，每一路线源均由脊型波导口单独馈电。面阵由辐射板和馈电腔两个零件组成，采用整体钎焊成形。线源结构为非对称单脊共线形式，即在普通单脊波导的两侧与辐射裂缝相对应的位置上布置不对称的凹台。

When towed fish is towed in the direction perpendicular with the lineation of hinge line of sand waves, the wave length and dipping angles, can be determined from the sonar image at nadir. Under the circumstance, whether the shape of the sand wave is symmetric or not can be shown and the main direction of sediment transportation can be pointed out.

依据相对大尺度的砂波，在拖鱼指向与砂波脊线成大角度斜交时，该波形可在拖鱼正下方影像显示，并且可以辨识该波长与坡倾角，以判定此砂波为对称波形，或非对称波形，来指示沉积物的净搬运方向。

GHz ridge－loaded helical groove slow wave structure with a 20kV electron beam are given and the investigations of the effect of the ridge dimensions and electron beam parameters on the small signal gain are carried out. It is indicated from the calculation results that this type of structure is suitable for use as s SWS of high power, high gain but narrow passband millimeter TWT, of which the 3dB gain bandwidth is 3.4%. In order to increase the bandwidth, the reduction of the ridge gap or the increase of the electron beam current in an allowable range may be useful.

GHz的脊棱加载慢波结构的具体尺寸，并对此结构中小信号增益随脊尺寸的变化情况及电子注参数对其影响进行了研究，计算结果表明：此结构适宜于作为高增益窄带毫米波大功率行波管的慢波线，其3dB增益带宽为3.4%，为了展宽其工作带宽，可以适当减小间隙宽度，也可在一定范围内提高电子注电流。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。