不完全地

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。

Most financial information is subject to some risk of being less than a faithful representation of that which it pu is not due to bias, but rather to inherent difficulties either in identifying the transactions and other events to be measu applying measurement and presentation techniques that can convey messages that correspond with those transactions cases, the measurement of the financial effects of items could be so uncertain that enterprises generally would not financial statements; for example, although most enterprises generate goodwill internally over time, it is usually d measure that goodwill reliably.

大部分财务信息都可能遇到由于它不能完全忠实反映它所拟反映的情况而带来的风险。这并不是由于存有认所要计量的交易和其他事项，或在设计和运用能够传递与那些交易和事项相对应的信息的计量和反映技术上，在某些情况下，对项目财务影响的计量可能是那么地不确定，以致使企业在通常情况下对它们无法在财务报表虽然大多数企业随着时间的推移在内部都会产生商誉，但是要可靠地确认或计量这种商誉，通常是困难的。

296Reason, in observing organic Nature, attains only to a contemplation of itself as universal life as such, it comes to see its development and realization merely in the form of systems distinguished quite generally, whose essential character lies not in the organic as such, but in the universal individual ; and it sees that development and realization among these differences belonging to the Earth in the form of arrangements which the genus attempts to achieve.

贺译（ p197）：观察的理性在观察有机物时所直观到的事实上仅仅是作为普遍生命一般的理性自身；而且，它之所以能直观这普遍生命的发展与实现，仅仅因为它是根据着那些完全普遍地区别了的系统，这些系统的规定与本质是不存在于有机物本身，而存在于普遍的个体、地球中的；而在地球的这些差别之中，它之所以能直观这普遍生命的发展与实现，又完全因为它是根据着类属所企图建立的那些系列。

Geek in the pink Well let the geek in the pink take a stab at it If you like the way I'm thinkin' baby wink at it I may be skinny at times but I'm fat fulla rhymes Pass me the mic and I'm a grab at it well isn't it delicious crazy way that I'm kissin' Cause baby listen to this don't wanna miss it while it's hittin' Sometimes you gotta fit in to get in But don't ever quit cause soon I'm gonna let you in but see I don't care what you might think about me You'll get by without me if you want I could be the one to take you home Baby we could rock the night alone If we never get down it wouldn't be a let down But sugar don't forget what you already know I could be the one to turn you out We could be the talk across the town Don't judge it by the color, confuse it for another You might regret what you let slip away Like the geek in the pink pink pink Like the geek in the pink yeah Well this relationship fodder don't mean to bother nobody But Cupid's automatic musta fired multiple shots at her Because she fall in love too often that's whats the matter At least I talk about it keep a pattern of flattery and She was starin' through the doorframe and eyeing me down like already a bad boyfriend Well she can get her toys outta the drawer then Cause I ain't comin' home I don't need that attention, see I don't care what she might think about me she'll get by without me if she want I could be the one to take her home Baby we could rock the night alone If we never get down it wouldn't be a let down But sugar don't forget what you already know I could be the one to turn you out We could be the talk across the town Don't judge it by the color, confuse it for another You might regret what you let slip away Hey baby look at me go From zero to hero You better take it from a geek like me I can save you from unoriginal dum-dums Who wouldn't care if you com...plete him or not So what I've got a short attention span A coke in my hand Because I'd rather have the afternoon, relax and understand My hip hop and flip-flops well it don't stop with the light rock A shot to mock you kinda puts me in the tight spot The hype is nothing more than hoo-ha so I'm Developing a language and I'm callin' it my own So take a peek into the speaker and you'll see what I mean That on the other side the grass is greener I don't care what you might think about me You'll get by without me if you want I could be the one to take you home Baby we could rock the night alone If we never get down it wouldn't be a let down But sugar don't forget what you already know I could be the one to turn you out We could be the talk across the town Don't judge it by the color, confuse it for another You might regret what you let slip away

怪胎的粉红色那么让怪胎的粉红色就在它刺伤如果你喜欢的方式我thinkin '婴儿在这眨眼我可能有时瘦，但我胖fulla韵我的通行证麦克风和我是一个抓住它以及是不是疯了美味的方式，我基辛'原因婴儿收听此不想错过它，而它的hittin '有时候，你总得适应进入但是，不要任何时候都很快退出事业我一定让你看到的，但我不在乎你们可能认为我你会得到的没有我如果你想我可以是一个带您回家宝贝我们可以岩夜间单独如果我们永远不会下跌不会是一个放下但是，糖不要忘记你已经知道我可以是一个把你我们可以谈论整个镇不要判断它的颜色，它混淆另一你可能会感到遗憾的是你让溜走像怪胎的粉红粉红粉红像怪胎在粉红色的是那么这种关系的饲料并不意味着没有人打扰但丘比特的自动穆斯塔发射多种拍摄她因为她爱上往往是什么问题至少我谈论这件事保持一贯奉承和她starin '通过门框和关注我已经想了一个坏男友那么她可以让她的玩具outta然后抽屉原因我不是comin家里我不需要注意，见我不在乎什么，她可能认为我她会没有我的，如果她想我可以是一个带她回家宝贝我们可以岩夜间单独如果我们永远不会下跌不会是一个放下但是，糖不要忘记你已经知道我可以是一个把你我们可以谈论整个镇不要判断它的颜色，它混淆另一你可能会感到遗憾的是你让溜走喂婴儿看我走从零到英雄您是否可以更好地从一个像我这样的怪胎我可以为您节省来自非独创的达姆， dums 谁不会关心你的COM 。。。他完全或不所以我有一个短期注意跨度焦炭在我的手因为我宁愿有下午，放松和理解我的嘻哈和触发器以及它不停止与轻摇滚一杆嘲笑你有点儿让我在紧张的现场宣传只不过是豪哈所以我开发的一种语言，我callin '但我自己因此，需要看到的发言，你会明白我的意思这在另一边的草绿色我不在乎你们可能认为我你会得到的没有我如果你想我可以是一个带您回家宝贝我们可以岩夜间单独如果我们永远不会下跌不会是一个放下但是，糖不要忘记你已经知道我可以是一个把你我们可以谈论整个镇不要判断它的颜色，它混淆另一你可能会感到遗憾的是你让溜走

But in fact, economic globalization, on the one hand, in the process of promoting the global expansion of economic activities, has developed a market without boundaries and a global production network, revealed the inapplicability of the current international economic order and whetted the appetite for the liberalization of trade and investment.

究其实，经济全球化一方面在推进经济活动的全球性扩张的过程中，开发出了无疆界的市场和全球化的生产网络，暴露了现行国际经济秩序的不适应性，增强了对贸易和投资自由化和经济管理全球化的渴求；另一方面经济全球化更加凸现了独立民族国家作为参与全球经济活动的主体身份的重要性和现实性，因为经济全球化并非完全自发的或盲目地形成的，更多地表现为民族国家之间的在发展经济问题上的相互承诺，而不是分散自由的民间经济往来。

Most of us walk through life inattentively, reacting unthinkingly according to the environment in which we have been brought up, and such reactions create only further bondage, further conditioning, but the moment you give your total attention to your conditioning you will see that you are free from the past completely, that it falls away from you naturally.

我们大多数人都不经意地生活着，按照我们在其中长大的环境不加思索地反应，这样的反应只能造成更多的束缚和限制。但是当你全神贯注于你的限制，你会看到自己完全从过去解脱出来，而那些限制将从你身上自然地消失。

In the test place, regards as the procedure the black box which cannot open, in did not consider completely in the procedure internal structure and the internal characteristic situation, carries on the test in the routine interface, whether its only inspection routine function does defer to the demand specification instructions the stipulation normal use, whether the procedure can receive the data-to have the correct produce information suitably.

在测试地，把程序看作一个不能打开的黑盒子，在完全不考虑程序内部结构和内部特性的情况下，在程序接口进行测试，它只检查程序功能是否按照需求规格说明书的规定正常使用，程序是否能适当地接收输入数据而产生正确的输出信息。

Hen it is not possible to overturn or completely abrogate a pro-abortion law, an elected official whose absolute personal opposition to procured abortion was well known could licitly support proposals aimed at limiting the harm done by such a law and at lessening its negative consequences at the level of general opinion and public morality.

众所周知，当不可能颠覆或完全废止一部支持堕胎的法律时，一个被选上的官员——他本人完全反对实施堕胎行为——可以合法地支持这样的主张，即其目标在于限制由这一法律造成的损害，并减轻其负面的影响到一般观点或公共道德的水准上。

If two parties want to sign a contract C over a communication network, they must "simultaneously" exchange their commitments to C Since simultaneous exchange is usually impossible in practice, protocols are needed to approximate simultaneity by exchange partial commitments in a piece by piece manner The party of secondly sending commitments may have a slight advantage; a "fair" protocol must keep this advantage within acceptable limits The protocol for signing a contract is improved based on the research result of secure multiparty computation In this protocol, the parties obliviously transfer the signed bit and the committed bit; the other parties can prove the validity of this bit based on the confirming sub protocol, but he cant gain more information about the whole signature by accumulating the signed bit or the committed bit After the parties exchange the whole signed information, they declare the commitment about the signature respectively, and gain the whole signature of the other party At this moment, the party doesnt care about the advance quit of the other party, because he has gained the whole signed information Finally, it is proved that this protocol is quit fairness

在网络环境中解决合同签订问题需要保证信息交换的同时性，以前提出的协议都会给第 2个发送者部分计算特权，利用不经意传输协议则可以解决这个问题在协议执行过程中，参与者将合同的签名位以及他对签名位的承诺不经意传输给对方，对方可以利用验证子协议证明该位的有效性，但是他却不能通过位交换次数的增加获取更多的完整签名的信息；在完成签名位的交换之后，参与者分别宣布承诺，并得到对方对合同的完整签名；在宣布承诺时，协议参与者已经获得全部的签名内容，要么是签名位，要么是对方对该位的承诺，因此参与者并不需要担心对方提前终止协议在文章的最后利用多方安全计算的结论证明了该协议满足终止公平性1 引言两个参与者A和B想要通过网络协商签订合同C 为了保证公平性，参与者必须同时交换自己对合同的签名，然而在实际的网络环境中，想要完全同时地交换对合同的签名是不可能的，他们必须将签名分成若干块依次地执行，以保证大致的同时性但是这种方法依然存在着问题

They do not hear our whimpers or understand our pleas. We're miserable and it's scary here we all would rather die. But since we don't we do our best to run away and hide. I know you think my story too sad to leave me be. You want to take me home with you, a happy little puppy. But please, though it is fearful to live here against our will. If you take me that leaves a spot another pup will fill. You can stop our suffering but not by taking us home. You must be strong and leave us here, unsold and all alone. For if you do not take me, then another pup won't come. And maybe he will not be shipped so far away from home. Tho some of us may not survive the cycle 'ere it falls. If we don't sell they will not need more puppies in these halls. And if they need no puppies then the Man will not bring more. Eventually it can all stop! You CAN close the door. So when you see a puppy face so sad and sweet and small.

他把我们全部塞在这些小小笼子里，我们长途跋涉，只能睡在粪便里现在我们坐在宠物店里，接受小孩子们的戏弄和捏挤他们听不见我们的哀哭，不懂得我们的哀祈我们处境悲惨，这里这么恐惧真是生不如死但是我们死不了，所以只能尽力躲避我知道你觉得我的故事太凄惨你不想让我在此久居你想把带我回家让我做只快乐的小狗但是，虽然我们不情愿充满恐惧地待在这里如果你带我走，另外一只小狗将步我的后尘被带到这里你可以帮我们解脱痛苦，但是不是用带我们回家的方式你一定要坚强，坚决把我们留在这里，无人问津，孤独凄凉因为如果你不带走我，另一只小狗就不会来到此地他可能就不会被从遥远的家里运来虽然我们中间有些小狗不会生存到这个循环的终止但如果我们卖不掉，他们就不需要更多的小狗如果他们不需要更多的小狗，那个人也不会带来更多总有一天这个循环会完全停止！

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。