查询词典 fold increase
- 与 fold increase 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The effect of tribology factors on bearing vibration is studied experimentally. AR model and WPT are used to processing the normal arid abnormal signals. The results are as follows:1. The vibration of ball bearings is caused by the tribology action of contact pairs of ball and ring races and has the essential of tribo-dynamics. Any factors affecting the tribology characteristics of contact pairs will affect vibration and noise of bearings consequently.2. Vibration characteristics of bearing keep almostly unchanged with the increasing of axial load expecting the increasing of nature frequencies. When radial load increasing with axial load unchanged, nature frequencies keep unchanged but some new vibration peaks appears in the spectrum.3. Vibration amplitudes are damped and nature frequency are enhanced with sufficient lubrication. Vibration and noise of bearings increase obviously and roar can happen and the contact surfaces scratch slightly under insufficient and unclean lubrication state. Bearing will be disabled in a few minutes without any lubrication.4. Bearing vibration is unstable under low speed. With the speed increasing, the vibration become stable and natural frequencies increase slightly but the amplitudes increase apparently.5. Bearing vibration can be excited only by some harmonics ofwaviness without lubrication and by all harmonics with lubrication based on the theoretical analysis.6. The nature frequencies of ball bearings decrease with the increasing sizes. When international clearance increasing, nature frequencies decrease in radial and increase in axial and angular and the amplitudes increase in radial and decrease in axial and angular. When the number of balls increasing, nature frequencies increase and amplitudes decrease. When the pitch diameter increasing, axial nature frequency increase and others nearly keep no change. When outer race groove curvature radius increasing, nature frequencies increase in radial and decrease in axial and angular and amplitudes keep no change in radial and increase in axial and angular. When inner race groove curvature radius increasing, nature frequencies decrease and amplitudes increase.7. The distortion in amplitude and frequency components of bearing vibration signals picked up by the present probe measurement method is founded and right conclusions cannot be achieved by the signals. When accelerometer is rigidly screwed with steel stud onto a flat outer surface of a ball bearing, vibration signal can be got without distortion and the reliability of research on bearing vibration is assured.8. AR model is suitable for large samples of bearing vibration signals, square root of length of samples can be used as the upper limitation of order determination and the FPE order selection criterion is effective. Many advantages of AR spectrum are founded over the classical based on FFT.9. Time-Frequency analysis is necessary for abnormal noise of ball bearings. WPT overcomes the principle shortcomings of STFT and proved to be a best tool to process the abnormal signals.
理论分析和试验研究表明: 1球轴承振动是钢球—滚道接触副中的各种摩擦学作用引起的,具有摩擦动力学的本质,任何对接触副的摩擦学特性有影响的因素都将对球轴承的振动和噪声特性产生影响; 2中心轴向载荷作用下,载荷增大使球轴承的固有振动频率升高,载荷越大同样的载荷增幅引起的频率升幅减小,足够大的中心轴向载荷作用下载荷的变化对球轴承振动的频率特性不会产生明显的影响; 3轴向和径向联合载荷作用下,径向载荷不大时球轴承振动的固有频率基本不变,但是可能引起变刚度激励的非线性振动,出现新的频峰,过大的径向载荷将使部分钢球脱离接触,使球轴承的振动和噪声呈现不稳定状态; 4润滑对球轴承的振动和噪声特性有重要的影响,良好的润滑对振动有明显的抑制作用,润滑不充分时,振动和噪声的水平会有明显增高,一定条件下还会激发接触副中的谐振,发出啸声,造成接触表面的伤害,无润滑干接触时,短时的运转就会损伤接触副表面,使振动和噪声迅速增大,并随时可能引发严重的磨损和卡滞失效;接触副润滑良好时,油膜的"刚化效应"使球轴承振动的固有频率有所提高,润滑剂中含有弥散性污浊时,振动的幅度总体升高,但弥散性污浊不会改变球轴承振动的频率特性;浙江大学博士学位论文:球轴承振动的研究 5低速时,球轴承振动的基本特征呈现不稳定状态,随着转速的提高,球轴承振动的频率特性趋于稳定,固有频率频峰升高; 6理论分析表明,干接触时钢球和滚道表面波纹度的某些谐波分量能激励球轴承的振动,振动的幅值与谐波幅值成正比,实际球轴承中钢球的分布不可能完全均匀,波纹度的激励作用会随时发生;润滑接触的分析表明,波纹度的任意谐波分量均能激励球轴承的振动; 7球轴承的几何和结构参数分析表明,球轴承尺寸越大,径向、轴向和角振动的固有频率越低;钢球中心圆直径增大,球轴承的径向和轴向振动的固有频率基本不变,角振动的固有频率有所上升,振动的幅频特性基本不变;径向游隙加大使球轴承的径向振动固有频率降低,轴向和角振动的固有频率有所升高,径向振动幅频特性的幅值升高,而轴向和角向降低;钢球的数量增多使球轴承振动的固有频率上升,幅频特性的幅值下降,径向振动的幅值下降最为明显;外圈沟曲率半径系数增大使球轴承径向振动的固有频率升高,轴向和角振动的固有频率降低,径向幅频特性基本不变,轴向和角向幅频特性幅值升高;内圈沟曲率半径系数增大使径向、轴向和角振动固有频率均下降,振动幅频特性的幅值均有升高; 8试验对比表明,传感器采用探针式安装时,由于探针接触副接触特性的影响,钡(量得到的球轴承振动信号有失真,采用专门设计和制作的试验球轴承,以固定式安装加速度计,首次测量得到了球轴承振动的真实信号,通过对振动信号的分析,验证了球轴承振动的理论模型; 9)基于时间序列分析的AR模型适用于大样本球轴承振动信号的分析,以样本长度的均方根值作定阶上界,FPE做判阶准则,给出的AR谱光滑,频率分辨率高,是球轴承振动分析的简便而可靠的手段; 10以时频域分析的小波包变换分析球轴承异音信号能够比较好地定位和聚焦异音发生的时间,时间间隔,频率范围,同样是球轴承振动分析的可靠的手段,可用作球轴承故障诊断技术。
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Is the fold structure can control large-scale the medium landform growth in the fold change aspect's significance; The fold structure often can control the minerals the formation and the tax saves the situation; The large-scale fold structure to studies the whole world diastrophism the way the direction and the nature significance significant and so on four aspects.
在褶皱变动方面的意义是褶皱构造能控制大、中型地貌的发育;褶皱构造往往能够控制矿产的形成和赋存情况;大规模的褶皱构造对研究全球地壳运动的方式、方向及其性质意义重大等四个方面。
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Wuxia area was located on the eastern of northwest Junggar basin, it was a zone of bruchfalten affected by multiphase tectonic activity, have many faults and its fold morphology were very complicated, underwent three large structural activities, which happened in the late Hercynian movement, Indo-Chinese movement, and the Yanshan movement, by this,strata of Wuxia area can be divided into two primary tectonic sequences and seven secondary tectonic sequences, on plane, Wuxia area can be divided into three secondary structural units from north to south,they are foreland thrust belt, Wuxia fault fold belt and monocline belt, further, from west to east Wuxia fault fold belt can be divided into four fault fold belts.
乌夏断裂带位于准噶尔盆地西北缘冲断带东段,是一个受多期构造叠加影响的断褶带,断裂发育,褶皱形态复杂,自成盆期以来经历了海西、印支、燕山和喜马拉雅等多期构造运动,可划分为2个一级构造层序和7个亚构造层序,可划分出山前冲断带、乌夏断褶带、南部单斜带三个次级构造单元和四个更次一级的构造单元。
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Hand-folded four-Pack (50g/mdoes-quadratical and the following paper) or hand-fold three fold (60-80g/m-squared paper) in a manner worthy of the books which should be in the book-to-last three fold in a manner worthy of the fold sewup hemomediastinum, to rule out the air and in a manner worthy of the book to prevent wrinkles appear, but now there are many flats in manual folding, knowing very well that should be hemomediastinum, but the pursuit of production would go for the big is not hemomediastinum, and finally after the wrinkles in buchbinderei and unrectifiable is extremely serious.
手工折四折(50g/m平方及以下的纸张)或手工折三折(60-80g/m平方纸张)的书帖均应在书帖倒数第三折折缝上破口,以排除书帖内空气而防止皱褶出现,但现在有许多单位在手工折页时,明知应破口,但一味追求产量就是不破口,最后书籍装订后皱褶极为严重而无法补救。
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Our cheese is quite differ from foreigner's,since cheese enter into our common people's life,quite a few business firm work on cheese business.but the real local old firm which is known to the whole capital is only belongs to cheese wei , nowadays the man running cheese wei is the fourth generation of family wei,as soon as i mentioned cheese wei, i have to say about the fold-bown cheese,many people erroneous regard fold-bown cheese as one kind of cheese wei,actually it is not true.fold-bown cheese is one standard for familiy wei to judge wheter cheese is good or bad in effect.because the procedure of making cheese is been highly treated by familily wei,they pursure high quietly matrials and be careness in its mading ,so when we turn aroud the bowl which full of cheese ,it will still keep in and not come off,so it is called by fold-bown cheese ,in addition ,this name is given by customer and come down from ancient to nowaday.to some extend,it is the existence of wei cheese's character.
咱们的奶酪可不同于老外的。自打这奶酪进入咱老百姓的生活后,有不少家作奶酪生意的字号。可真正地道的那就要说这名震京都的老字号——奶酪魏了,现如今经营这奶酪魏的是魏家的第四代传人了。说到奶酪魏就不得不说说&合碗酪&,很多人认为合碗酪是奶酪魏的一个品种,其实是不对的!&合碗酪&实际是魏家评判奶酪好坏的一个标准!因为魏家的奶酪在制作的选料上乘做工讲究,所以他们家的奶酪在倒过来是合碗而不掉而且&合碗酪&三个字也是客人所赠,但是一直流传至今!这也是魏家奶酪的特色所在。
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Cell lines were co-tranfected with bi-plasmids and cultured at 1% O〓 condition, luciferase assay demonstrated that all of the expression systems with different domains could be hypoxia-activated. GAL-CAD achieved more than 100-fold induction in A549 cell and more than 40-fold in HepG2; expression level of the system markedly increased after addition of glycin arm, almost 10-fold enhancement in HepG2 cell. Because basic expression also increased, the induction fold by hypoxia decreased.
双质粒共转染不同细胞株后,在1%O〓环境下培养24h,荧光素酶活性检测结果提示含不同结构域的表达系统均有受缺氧激活的能力,其中GAL-CAD在A549中获得100倍以上的诱导,在HepG2中获得40倍以上的诱导;加入甘氨酸臂后该表达系统的转录活性大为增强,在HepG2细胞中增强了10倍以上,但是由于基础表达也有所增加,受缺氧诱导的倍数下降。
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Christmas close to the weekend, New Year's periods of 3 days sabbatical leave, winter city of Sanya is a tourist spot, tourism, tourists will show a big increase in the Northeast air will still be in Guilin, Beihai, Sanya route running to the discount airline tickets to meet part of the the "free exercise" travel FIT needs; civil service and business travel groups mainly in the pre-holiday and the festive season off to buy more obvious, in the mid-term holiday, the Northeast Air will promptly release rates, a part-time to meet the stringent needs of the passenger ticket, such as the North Sea = Guiyang routes, fares as low as 2 fold 180 yuan, Baise = Chongqing routes, fares as low as 2.5 fold 230 RMB; for regional flights, mainly to tourists traveling to visit relatives, the demand will increase, these routes have been tickets very soft, Guilin = North Sea routes, fares are as low as 100 yuan a pack, Guilin = Baise routes, fares as low as 1.5 fold 120 yuan, the price would not be any major fluctuations.
圣诞节接近周末,元旦时间有3天公休假期,冬季的三亚是旅游热点城市,旅游客源会有较大幅度增长,东北航空仍然会在桂林、北海到三亚航线上投放折扣优惠机票,满足一部分"自由行"旅游散客的需求;公务和商旅人群客主要在节前和节后购买比较明显,在节假日中期,东北航空将及时推出优惠价格,满足一部分时间宽松的旅客购票需要,比如北海=贵阳航线,票价低至2折180元,百色=重庆航线,票价低至2.5折230元;对于区内航线,主要是探亲出行客源,需求会有所增长,这些航线机票一直是很优惠,桂林=北海航线,现票价低至一折100元,桂林=百色航线,票价低至1.5折120元,价格方面不会出现大的波动。
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The results show that:First, concentration of hydrogen peroxide have the most obvious influence to oil yield and carbon black yield,with the increase of concentration of hydrogen peroxide the oil yield first increase then decrease,when concentration of hydrogen peroxide is 8.19% or so,the oil yield reach to the biggest value, and with the increase of concentration of hydrogen peroxide carbon black yield decrese;Then,reaction time have more obvious influence to oil yield and carbon black yield,oil yield increase but carbon black yield decrease with the increase of reaction time;Thirdly,reaction tempreture have some influence to oil yield and carbon black yield,samely,oil yield increase but carbon black yield decrease with the increase of reaction tempreture;Finally,reaction pressure does almost no influence on oil yield and carbon black yield.
研究结果表明:过氧化氢质量浓度对产油率和炭黑产率的影响最为显著,产油率随过氧化氢质量浓度的提高先提高后降低,在过氧化氢质量浓度为8.19%左右时达到最大值,炭黑产率随过氧化氢质量浓度的提高而降低;反应时间对产油率和炭黑产率的影响也比较显著,产油率随反应时间的增加而提高,炭黑产率随反应时间的增加而降低;反应温度对产油率和炭黑产率也有一定的影响,产油率随反应温度的提高而相应地提高,炭黑产率随反应温度的提高而降低;在本文实验范围内,反应压力对产油率和炭黑产率基本上没有影响。
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Through the flue gas and air characteristic analysis in supercharged boiler,the results showed that the value of parameters would increase with the increase of fuel consumption.And volume heat load of the furnace, fuel consumption, heat change between flue gas and convective heating surface and evaporation value would increase with the increase of compression ratio.The heat calculation would be different because of dissimilar thermal calculation in the turbo-compressor when the boiler load was changed.As the boiler load increased,heat loss in the turbo-compressor would increase and the efficiency of the boiler would decrease.The results of the boiler start-up simulation showed that the time of start-up would decrease with the increase of flue consumption ,but instantaneous pressure amplitude would increase.Steam water"s dymamic diversification would be more complex than flue gas"s,and dynamic characters of their parameters would be changed due to different boiler load and disturbance variable,which was shown by results of the simulation when boiler load was changed.
通过分析增压锅炉内的空气、烟气参数特性,发现随着锅炉负荷的增加,空气和烟气的各项参数值都相应的增加;炉膛容积热负荷、锅炉的燃料负荷随着增压比的提高成比例增加;随着增压比的增大,烟气与对流受热面的换热增加,蒸发量随之增加;由于涡轮增压机组在不同负荷下的热力计算不同而造成增压锅炉在不同负荷下的热平衡计算的不同;锅炉增压机组的总的热损失随着锅炉负荷的增加而增加,而增压锅炉的热效率随着锅炉负荷的增加而减少;锅炉启动模拟仿真结果中发现,锅炉启动时燃料量增加,锅炉的启动时间就会减少,但是瞬时升压速度会增加;而动态负荷变化模拟仿真结果中发现,锅炉汽水侧的变化相比烟气侧更为复杂,且在不同负荷和不同扰动量下,烟气侧和汽水侧的重要参数动态特性是不同的。
- 相关中文对照歌词
- 1901
- I Fold All
- Ten Fold
- 1901
- Into The Fold
- Bless Me (Prayer Of Jabez)
- The Fold
- Whatthefuck!?!?
- Whatthefuck!?!? (Extra Crispy Mix)
- The Church & The Dime
- 推荐网络例句
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"Yes, now you can give yourself airs," she said, you have got what you wanted.
"对了,您现在高兴了,"她说道,这是您所期待的。
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Then the LORD said to me: Rebel Israel is inwardly more just than traitorous Judah.
上主于是对我说:"失节的以色列比失信的犹大,更显得正义。
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I do my best to guide my congregation,ok?
我尽了全力引导会众明白吗?