The effects of blade stiffness mistuning on the natural frequencies and mode shapes in the frequency veering region were studied based on the lumped parameter model of a bladed disk. A parameter L was introduced to define the severity of mode localization.

基于葉盤(pán)集中參數(shù)模型超碰免费在线91，分析了葉片剛度失諧對(duì)頻率轉(zhuǎn)向區(qū)內(nèi)的系統(tǒng)固有頻率及葉片模態(tài)振型的影響，提出了一個(gè)描述模態(tài)局部化程度的參數(shù)久久综合国产72精品，仿真研究了頻率轉(zhuǎn)向特征對(duì)失諧葉盤(pán)模態(tài)局部化程度的作用規(guī)律1024手机无码人妻久久。

The reciprocal effects between the frequency veering and the sensitivity ofmistuning for a bladed disk are studied. The investigation is based on a finite elementmodel. The reason and features of frequency veering of the bladed disk are analyzed.By using the localization parameter, the effects of mistuning on the system modallocalization of the bladed disk are analyzed in the frequency veering region.

分析了葉盤(pán)系統(tǒng)頻率轉(zhuǎn)向現(xiàn)象產(chǎn)生的原因及其特點(diǎn)；利用本文提出的模態(tài)局部化參數(shù)国产一级a作爱片在线观看，研究了頻率轉(zhuǎn)向區(qū)域內(nèi)葉盤(pán)系統(tǒng)的高密集模態(tài)對(duì)失諧的敏感性丰满肥熟女人乱子小说；分析了頻率轉(zhuǎn)向區(qū)域內(nèi)失諧葉盤(pán)系統(tǒng)的振動(dòng)響應(yīng)局部化特性。

Furthermore, thiopental prolonged the time constantsof both desensitization and deactivation of I GABA.

并且硫噴妥鈉能夠延長(zhǎng) IGABA 的失敏和失活時(shí)間国产人在线成免费视频麻豆。

When it is out of or power failure, the spring pushes piston folding and air exhausts from 2,then clockwise turning is made.

失氣或失電時(shí)国产拍一区，彈簧使活塞合攏，空氣從2口排出欧美日韩综合精品一区二区，從而獲得順時(shí)針?lè)较蛐D(zhuǎn)女同饮尿一区二区三区。

Objective To investigate the effect and side-effect of mifepristone in small doses comparing C53contraceptive in postcoital contraception.Methods 142women with normal menstruation were divided into two groups randomly.Observation group（n=66）were given mifepristone10mg and C53contraceptive5mg within72hours after unprotected intercourse or contraception failure.Control group（n=76）were given mifepristone with a sin-gle dose of10mg within72hours after unprotected intercourse or contraception failure.The effect side-effect and menstruation of the two group were compared.

目的 探討低劑量米非司酮配伍雙炔失碳酯應(yīng)用于緊急避孕的效果方法將142例月經(jīng)規(guī)律的合格婦女隨機(jī)分 2組，觀察組（66例）在避孕失敗或無(wú)保護(hù)性性交后72h內(nèi)開(kāi)始服用米非司酮10mg+雙炔失碳酯5mg日韩区欧美区，對(duì)照組（76例）在避孕失敗或無(wú)保護(hù)性性交后72h內(nèi)開(kāi)始服用單劑量米非司酮10mg，觀察兩組避孕效果色色色免费色、不良反應(yīng)及月經(jīng)情況国产又粗又长又大又色。

Phages at 60 ℃ heat treatment were all inactivated, and the inactivation rate and time had a proportional relation.

噬菌體在60℃下熱處理，均失活干在线永久免费视频，失活率與時(shí)間呈正比關(guān)系狼友日韩三级。

In a BBC-hosted dementia panel held on January 6, panellists discussed 4 main factors that may minimize the risk for dementia across populations.These include increasing levels of exercise across all ages, controlling midlife obesity, optimizing midlife blood pressure, and reducing midlife cholesterol levels to recommended targets for various risk groups.

在一項(xiàng)於1月6日由BBC舉辦的失智癥座談會(huì)中，與會(huì)來(lái)賓討論到4個(gè)可能減少不同族群發(fā)生失智癥的危險(xiǎn)因子日韩人妻无码免费视频一二区色，包括增加所有年齡層的運(yùn)動(dòng)欧美精品亚洲精品日韩传电影、控制中年肥胖、最佳化中年血壓在线精品视频小网站在线、以及降低中年膽固醇濃度達(dá)不同風(fēng)險(xiǎn)族群的目標(biāo)天堂av.com。

Observing the ovarioles by dissecting female moths, the eggs in ovarioles lined up in order, no difference in size and color contrasting with the normal ones.

在家蠶品種&明&中發(fā)現(xiàn)一種卵突變體，其卵產(chǎn)下后10 min左右即出現(xiàn)失水凹陷人人操wwwcom，1 h左右完全失水91黄色视频在线免费在线观看，全部潰死。

The analysis shows that with given grid size higher accurate difference scheme can give higher resolutions with wider range of scales, or with given accuracy large grid size can be used for the higher accurate difference scheme. The second part is the numerical simulation of two-dimensional axisymmetric jet. The simulation results show the structure in the near field and the initial transition. In the near field, Kelvin-Helmholtz instability leads to the formation of vortex ring, and nonlinear growth leads to the merging of vortex ring. This is the main instability form. Under the assumption of axisymmetry and two-dimensional computing conditions, the results are applicable only in the near field.

第二部分采用高精度的差分格式對(duì)二維軸對(duì)稱射流進(jìn)行了數(shù)值模擬国产黄色精品亚洲一级片AV，模擬結(jié)果顯示了射流流場(chǎng)結(jié)構(gòu)和渦結(jié)構(gòu)的發(fā)展過(guò)程粗暴大黑鳮巴视频欧，在射流流場(chǎng)近區(qū)，K-H失穩(wěn)導(dǎo)致渦環(huán)的產(chǎn)生以及非線性效應(yīng)的增長(zhǎng)導(dǎo)致渦環(huán)的對(duì)并是射流失穩(wěn)的主要形式精品在线电影；分析指出在軸對(duì)稱假設(shè)下的射流數(shù)值模擬只適用于射流近區(qū)的分析国产18禁黄网站禁片在线。

After measurement and analysis of the interfering voltage, potential gradient, the point current density, the weight-loss increases with average current density, and the depth of penetration increases with the interfering voltage.

測(cè)量和分析了干擾電壓、電位梯度一级性做久久久久久、點(diǎn)電流密度久久国产的精品、失重量及腐蝕坑深后欧美黄片亚州黄片，可以看出失重量隨平均電流密度而增加，腐蝕坑深隨干擾電壓而加劇亚洲欧美自拍日韩精品。