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First, the angular velocity function and maneuver load for certain maneuver flight (including hover, dive-hike and these two combined) are set up. The simulation results of the vibration of double-disk rotor system with cantilever supported on rigid bearings show that rotor would be apparently deformed under maneuver load. Second, the performance of oil force of SFD in maneuver flight is analyzed. The results show that in maneuver flight, the SFD with centering spring will become eccentric and its oil force will be time-related and offset-related. Then, SFDs are introduced into typical Jeffcott rotor system. The whole system will be statically displaced in maneuver flight and the nonsynchronous components of oil force appear in the response of rotor system.

首先,建立了水平盘旋、俯冲拉起及盘旋+俯冲拉起复合机动三种机动飞行条件下的机动角速度函数,并确定了对应机动飞行条件下的机动附加载荷(附加离心力和附加陀螺力矩),分析了带刚支的双盘悬臂转子系统在机动飞行条件下的振动特性,发现发动机转子在机动飞行时会发生明显变形;随后,分析了非定心挤压油膜阻尼器的油膜力特性,机动飞行时,油膜轴颈在机动附加载荷的作用下偏离外环中心,使得带定心弹支的挤压油膜阻尼器也变成了非定心挤压油膜阻尼器,其非定心挤压油膜力是瞬态时变的,并且与SFD油膜轴颈偏移量和进动形态有关;然后,在经典的Jeffcott转子系统中引入带定心弹支的挤压油膜阻尼器,分析了机动飞行时非线性转子系统的振动特性,发现挤压油膜阻尼器油膜力的非协调特性也反映到转子系统的振动响应中;之后,对机动飞行条件下带挤压油膜阻尼器的双盘悬臂转子系统的振动特性进行了分析,并重点分析、总结了俯冲拉起机动飞行时,系统结构参数和工作状态参数(转速比、机动飞行半径、机动角速度等)对该系统振动特性的影响。

The expression of basic fibroblast growth factor in aneurismal wall was determined by immunobistochemical analysis. Results Two weeks after the beginning of the experiment, there was no difference in size of aneurysm among the 3 groups.

结果 各组动脉瘤的大小在2周时无明显差异,8周时A组明显大于B组和C组(P.01),B组和C组差异不显著。2周时,各组bFGF均呈轻度表达,8周时A组bFGF表达强度明显高于B组和C组。

Keeping baryon density invariant, the fractions of hyperons at S = 2 are largerthan those at S = 1 in the region of relative low density of baryons.

给定重子密度,中子在S=2时的组分比S=1时的小,而质子、电子、μ子在S=2时的组分比S=1时的大,特别是在低密度区域。S是每个重子的熵。

Objective: Pino et al reported that strip lesions were produced when the distance between two probe was 2 to 6mm, and it resulted in unipolar lesions when they were spaced more than 6 mm apart. However, in clinical studies and some other reports, bipolar radiofrequency treatment was also effective when the distance was 10mm. Therefore, we duplicated Pino et al's experimente to study the lesion morphology when the distance of two radiofrequency cannulae was arranged between 2 and 10mm.

目的: Pino等人的研究发现双针间距在2-6mm之间时双电极之间可形成带状毁损,而8mm、10mm间距时双电极针成为独立的电极毁损,而在临床研究及某些文献报道中可以看到双电极间距在10mm时治疗同样有效,因此本文重复Pino等人的实验,研究双针电极间距在2-10mm时双针射频毁损形态。

We selected Streptomyces strain FXJ2.014 with high bioactivity for further analysis and found additional metabolites in fermentation extracts of cocultures of strains FXJ2.014, FXJ1.296 and AS 4.1252 respectively with B. subtilis. Quinomycin A was the main bioactive metabolite produced by the monoculture of strain FXJ2.014, while a new quinomycin-like component named FXJ2.014-HB was produced when strain FXJ2.014 was cocultured with B.

发现FXJ2.014、FXJ1.296、AS 4.1252三株菌与枯草芽孢杆菌共培养时产生其在相同条件下单培养时没有的物质,其中链霉菌FXJ2.014单培养时主要产生醌霉素A,共培养时产物中增加了醌霉素结构类似物FXJ2.014-HB。

The result show that the samples are compactest when a-Al2O3/ content is 10wt% at 1450℃, zircon start to decomposes at 1350℃, little mullite are found at 1450℃, there are lots of mullite at 1500℃, apparent poroes become more, bulk density falls.

结果表明,1350℃时硅酸锆已经开始分解,添加a-Al2O3/为10%、温度为1450℃时烧结体最致密,相对密度达到95%,1450℃时已有少量莫来石相形成,1500℃时形成较多莫来石相,气孔增多,体积密度降低。

For frequency information fluid identification technology:the basic theory of fluid identification based on frequency information has been introduced,for inner and external factor affecting frequency,some steps have been proposed to attain reserved amplitude and frequency analysis data with high resolution,high S/N ratio;through the comparison of time-frequency analysis method, the high accuracy time-frequency analysis method has been selected to extract time-frequency attributes;the analysis method flow of common single frequency fluid identification has been proposed,according to the data of full frequency band,several anomaly zone modes of common single frequency attribute have segregated; incorporating converted wave and compression wave,fluid identification method based on PS wave combined time-frequency analysis has been proposed;the AVO property of various fluid type in frequency domain has been studied;the generalized fourier analysis method,Proni absorption filter has been introduced,and researched for anti-noise and for the seismic processing interpretation flow.The above technology have been applied to fluid identification of organic reef in WBT area in the east of Sichuan and fluid identification of clastic rock in GUANGAN area in the middle of Sichuan,the results show that the above methods are effective.

基于频率信息的流体识别技术方面:介绍了利用频率信息流体识别的基本理论,针对影响频率的内、外在因素,提出一些针对措施,以获得高分辨率、高信噪比的保幅、保频分析数据;通过时频分析方法的比较,选取高精度的时频分析方法提取时频属性;提出共单频属性进行流体识别的分析方法流程,结合全频带数据,分出几种共单频属性异常带模式;联合转换波资料和纵波资料,提出基于纵横波联合时频分析进行流体识别方法;研究了频率域内不同流体类型AVO现象;引进一种广义傅立叶分析方法:Proni吸收滤波,研究其抗噪性以及进行地震处理解释的流程;将这些技术应用川东北五百梯区块进行生物礁储层流体的识别和川中广安陆相碎屑岩的流体识别,取得较好的效果。

A water which the real love is the spouse is thirsty when hands over, the real love is goes out when an urge, the real love is when the spousal sob opens the bosom, the real love is the road which goes home hurriedly goes to the head flashes through ", if I do not go home, he will not be able to sleep" the thought that the real love will be when the spousal indisposition will wish one could to go to the pain for her one mood, the real love will be ", so long as she happy, I am willing to make all" the tenacity, the real love will be regards as her the human who will be in the world is frailest, most needs to protect.

真爱是爱人口渴时递上的一杯水,真爱是出门时的一句叮咛,真爱是爱人哭泣时张开的怀抱,真爱是匆忙回家的路上脑中闪过的&如果我不回家,他就会睡不着觉&的念头,真爱是爱人病痛时恨不得替她去痛的一种心情,真爱是&只要她开心,我愿意做一切&的固执,真爱是把她看作是世界上最脆弱、最需要呵护的人。

The effect of the friction between rolls and ring can be ignored and the effect of the spread velocity of rolling on the deformation of ring is illustrated.

通过模拟分析比较,揭示出了环件轧制过程中的金属流动规律:轧制时,环件外侧的变形最大,厚向中心部位变形最小,内侧的变形程度介于中间;环件内外环面的压应力分布和变化规律:在垂直于环件轴线的对称面上,压应力分布近似对称状态,而且在对称面上的应力最大,往端面方向开始减小;指出了环件轧制中轧辊与环件摩擦对环件成形的影响:对于环件的宽展变形,摩擦的影响很小,可以忽略;分析了环件进给速度对环件成形的影响并阐述了环件厚向中心部位凹陷产生的原因,提出防止凹陷的措施:在轧制时,尽量使用快的进给速度有利于防止端面凹陷的产生;研究了导向辊位置对环件成形以及轧辊受力的影响:导向辊的位置对环件的宽展变形影响很小,但对轧辊的受力影响较大,当导向辊的中心位置位于毛坯初始中心位置之上时,驱动辊和芯辊的受力相对较小,这是导向辊导向时优先考虑的位置。

Here the proper occasions are these: the last month and a half of the hot season, the first month of the rains, these two and a half months being a time of heat, a time of fever; a time of illness; a time of work; a time of going on a journey; a time of wind or rain.

任何比丘在半个月内洗两次澡,除非是在适当的情况之下(热季的最后一个月和热季的一半,雨季的第一个月,生病时,工作时,旅行时,有风或有雨时),犯 Pacittiya。

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In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是,在否定句或疑问句里,这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷

Nusa lembongan : Bali's sister island, coral and sand beaches, crystal clear water, surfing.

Nusa Dua :豪华度假村,冲浪和潜水,沙滩,水晶般晶莹剔透的水,网络冲浪。