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When I was sick, I found that health is the most important, When I am sad, I found that happiness is the most important, When my brokenhearted, I found the love is the most important, When I need, I found that money is the most important, When I'm hungry, I found the hunger is the most important, When I was frustrated, I found the confidence is the most important, When I die, I found that time is the most important.

当我生病时，我发现健康是最重要的；当我伤心时，我发现快乐是最重要的；当我失恋时，我发现恋爱是最重要的；当我穷困时，我发现金钱是最重要的；当我饥饿时，我发现温饱是最重要的；当我沮丧时，我发现信心是最重要的；当我离开人世时，我发现时间是最重要的。

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。

D its lonely hours and dreary, When we Close the aching sight, Musing sadly, lorn and weary, Trusting that tomorrow's light May reveal a day more cheery; Amid affliction's darker hour, When no hope beguiles our sadness, When Death's hurtling tempests lower, And forever shroud our gladness, While Grief's unrelenting power Goads our stricken hearts to madness; When from friends beloved we're parted, And from scenes our spirits love, And are driven, broken-hearted, O'er a heartless world to rove; When the woes by which we've smarted, Vainly seek to melt or move; When we trust and are deluded, When we love and are denied, When the schemes o'er which we brooded Burst like mist on mountain's side, And, from every hope excluded, We in dark despair abide; Then, and ever, God sustains us, He whose eye no slumber knows, Who controls each throb that pains us, And in mercy sends our woes, And by love severe constrains us To avoid eternal throes.

小时的孤独和凄凉，当我们关闭疼痛视觉，沉思可悲的是，洛恩和厌倦，相信明天的光线可能揭示出一个更愉快的一天；一片痛苦的黑暗时刻，当我们不希望翻滚的波涛上面悲伤，当死亡的飞驰暴风雨低，我们永远裹尸布高兴，虽然悲伤的不懈动力Goads我们灾区的心以疯狂；当从我们可爱的朋友分手，从场面我们的精神的爱，并驱动，伤心，O'er是无情世界的罗夫，当其中我们元气疾苦，妄想寻求融化或移动，当我们的信任和迷惑，当我们爱和被剥夺，当计划o'er 像我们反复思量山区一边薄雾破灭，从每一个希望排除，我们在黑暗的绝望遵守，那么，和以往任何时候都维持我们的上帝，他的眼睛没有沉睡知道，谁控制每一个跳动的痛苦我们，在我们的困境发出慈悲，爱和严重制约我们避免永恒的阵痛。

When things go wrong as they sometimes will, When the road you're trudging seems all uphill, When funds are low and the debts are high, And you want to smile, but have to sigh, When care is pressing you down a bit-- Rest if you must, but don't you quit. Life is queer with its twists and turns, As every one of us sometimes learns; And many a fellow turns about When he might have won, had he stuck it out. Don't give up though the pace seems slow-- You may succeed with another blow. Often the goal is nearer than It seems to a faint and faltering man; Often the struggler has given up When he might have captured the victor's cup; And he learned too late when the night came down, How close he was to the golden crown. Success is failure turned inside out-- The silver tint of the clouds of doubt, And you never can tell how close you are, It may be near when it seems afar; So stick to the fight when you're hardest hit; It's when things seem worst that you mustn't quit .

当天有不测风云发生当你脚下的路变得崎岖当你囊中羞涩却又债台高筑你想要微笑，却不得不叹息当烦恼向你侵袭而来你有必要休息，但绝对不要放弃生命因波折和坎坷而有特色我们每个人有时候都懂得许多人茫然四顾如果他坚持到底，他会成功当事情似乎停滞不前也请不要放弃只要稍加努力你也许就会成功成功的日子比一个脆弱的人想到的更接近奋斗者经常在离成功只有一步之遥时轻易选择了放弃当夜幕降临时他会意识到他离成功是多么接近可是，已经太迟成功是失败的另一种形式是重重疑云上的银色光辉你从不知道你是多么接近它它也许就在眼前却看似遥不可及所以，在最困难的时刻也要坚持奋斗越是困难，越不能放弃！

When you ask so many questions that your mom does not know how to answer While you sit at the front of your mom's bike When you jump into water while your dad is not watching you While you do not know how to swim and cry to ask for your dad's help When you are proud of yourself as your teacher visiting your home While most of your classmates are fear of your teacher's home visiting You are in the first decade of your life When you start to compete at school after taking your parents' suggestion As you know studying hard is the only way to change your life When you are lazy on-campus while not at home As you want to be different to your classmates When you are dreaming to move to your capital for further study As you want to get into the best school in the nation You are in the second decade of your life When you are surprised there are so many smart classmates around you After you leave your hometown and ride on your bike in the most beautiful campus When you start to treat English like your native language After you see so many schoolmates go abroad by passing English test When you are in a plane for the first time heading towards a strange land After your pass so many tests and contact so many professors You are in the third decade of your life When you surprises your peers who say why Chinese are so smart When you are out of joy after owning your first used car When your local roommate asks for a coffee after coaching you on how to drive When your advisor complains you are running too fast When you turn down one job offer and go for another When you work in the industry as a CEO-under-training You are in the third decade of your life When your customer becomes your boss When your freedom becomes your burden When your daily job is to create jobs When you nightly job is to create poems When no town becomes your hometown When no land becomes your homeland You are in the fourth decade of your life How many decades have you gone through?

十年 当你问这么多问题，你的妈妈不知道如何回答当你坐在前面的你妈妈的自行车当你跳入水中，而你爸爸不是看着你虽然你不知道如何游泳，并大声呼喊请你爸爸的帮助当你感到自豪的是自己作为你的老师您的家庭访问虽然大多数的同学都担心你的老师的家访您是在第1个十年的生活当您开始在学校的竞争后，你的父母的建议如你所知勤奋学习是唯一的方法来改变你的生活当你懒惰的校园虽然没有在家里如您想成为不同，你的同学当你梦想转移到你的资本，为进一步研究如您想进入最好的学校在全国您的第2个十年的生活当你感到惊讶有这么多聪明的你周围的同学当您离开您的家乡，你骑自行车在最美丽的校园当您开始像对待你的英语母语当您看到这么多同学出国通过英语测试当你在飞机第一次走向一个陌生的土地您传球后这么多的试验和接触这么多的教授您的第3个十年的生活当您惊喜您的同行说，谁，为什么中国如此聪明当你的喜悦当你自己你的第一个二手车当你的室友问当地的一个咖啡教练后，您就如何推动当您的顾问抱怨您正在运行速度太快当您打开了一个工作机会并转到另一个当您工作的行业作为一个首席执行官下训练您的第3个十年的生活当你的客户成为你的老板当你的自由成为你的负担当您每天的工作是创造就业机会当你每晚的工作是撰写诗歌如果没有城市成为您的故乡如果没有国家成为您的祖国您的第4个十年的生活几十年来多少，你经历？

Yes you can I got, you got, we got eve rybody I got the gift, gonna stick it in the go al It's time to move your body Babylon back in business Can I get a witness, every girl, every m an Houston can you hear me, Ground control can you feel me Need permission to land I don't wanna rock DJ But you're making me feel so nice When's it gonna stop DJ, Cos you're keep me up all night Singing in the classes, music for your m asses Give no head, no backstage passes Have a proper giggle, I'll be quite poli te And when I rock the mike, I rock the mik e You got no love then you're with the wro ng man It's time to move your body If you can't get a girl, but your best f riend can It's time to move your body I don't wanna be sleazy, baby just tease me Got no family plans Houston can you hear me, Ground control can you feel me Need permission to land I don't wanna rock DJ But you're making me feel so nice When's it gonna stop DJ Cos you're keep me up all night I don't wanna rock DJ But you're making me feel so nice When's it gonna stop DJ Cos you're keep me up all night Pimpin' ain't easy Most of them fleece me, every night Pimpin' ain't easy but if you're selling, it's alright COME ON I don't wanna rock DJ But you're making me feel so nice When's it gonna stop DJ Cos you're keep me up all night I don't wanna rock DJ But you're making me feel so nice When's it gonna stop DJ Cos you're keep me up all night I don't wanna rock DJ But you're making me feel so nice When's it gonna stop DJ Cos you're keep me up all night I don't wanna rock DJ But you're making me feel so nice When's it gonna stop DJ Cos you're keep me up all night

我 ，你，我们得到前夕 rybody 我得到了礼物，要去坚持在去阿拉巴马州现在是时候将你的身体巴比伦回到业务我能得到证人，每一个女孩，每米 1 休斯顿你能听到我的话，地面控制你能感觉到我需要许可的土地我不想岩石的DJ 但是你让我觉得非常好当的是要去阻止的DJ ，余弦你把我所有的夜晚歌唱班，音乐为您的米评估也没有头，没有后台通行证有适当的笑声，我会很加里波里碲当我的摇滚麦克，我摇滚的mik é你有没有爱，那么你正在与wro 吴文现在是时候将你的身体如果你不能让一个女孩，但你最好f 友可以现在是时候将你的身体我不想被低俗，婴儿只是戏弄缅因州他没有家庭计划休斯顿你能听到我的话，地面控制你能感觉到我需要许可的土地我不想岩石的DJ 但是你让我觉得非常好当的是要去阻止的DJ 余弦你把我所有的夜晚我不想岩石的DJ 但是你让我觉得非常好当的是要去阻止的DJ 余弦你把我所有的夜晚 Pimpin '是不容易他们大多数摇粒绒箱，每天晚上 Pimpin '是不容易但如果你是销售，这是正常的来吧我不想岩石的DJ 但是你让我觉得非常好当的是要去阻止的DJ 余弦你把我所有的夜晚我不想岩石的DJ 但是你让我觉得非常好当的是要去阻止的DJ 余弦你把我所有的夜晚我不想岩石的DJ 但是你让我觉得非常好当的是要去阻止的DJ 余弦你把我所有的夜晚我不想岩石的DJ 但是你让我觉得非常好当的是要去阻止的DJ 余弦你把我所有的夜晚

When he has taken his exercise and is drinking his tea or his beer and lighting his pipe; when, in his garden or by his fire, he sprawls in an aggressively comfortable chair; when well-washed and well-brushed, he resolutely turns in church to the east and recites the Creed without in the least implying that he believes one word of it; when he hears or sings the most crudely sentimental and thinnest of popular songs, unmoved but not disgusted; when he makes up his mind who is his best friend or his favorite poet; when he adopts a party or a sweetheart; when he is hunting or shooting or boating, or striding through the fields; when he is choosing his clothes or his profession—never is it a precise reason, or purpose, or outer fact that determines him; it is always the atmosphere of his inner man.

当他做运动时，喝茶或啤酒时，还有点燃他的烟斗时；当他在他的院子里或是在火炉旁，他大咧咧的坐进一个非常舒适的椅子；当梳理妥当，他毅然决然的朝东向教堂而去，他当众吟诵使徒教条，丝毫没有表达出对其中任何一个字的信服；当他听见或唱出最浑然天成，动人或稀薄无力的热门歌曲，并不为之所动也不感到嫌恶；当他决定谁是他最好的朋友和最喜爱的诗人；当他办场派对或和甜心女郎约会；当他去打猎或是射击或是划船，又或是横跨原野；当他选择要穿上身的衣服或是他的职业-这些从来都不是取决於一个绝对的理由，或是目标，或是任何外在因素；一直都是他的内在精神气度在做决定。

When he has taken his exericise and is drinking his tea or his beer and lighting his pipe;when,in his garden or by his fire,he sprawls in an aggressively comfortable chair;when well-washed and well-brushed,he resolutely turns in church to the east and recites the Creed (with genuflexions,if he likes genuflexions)without in the least implying that he believes one word of it;when he hears or sings the most crudely sentimental and thinnest of popular songs,unmoved but not disgusted;when he makes up his mind who is his best friend or his favourite poet;when he adopts a party or a sweetheart;when he is hunting or shooting or boating,or striding through the fields;when he is choosing his clothes or his profession —— never is it a precise reason,or purpose,or outer fact that determines him;it is always the atmosphere of his inner man.

在他锻炼完后，喝着茶或是啤酒，点起烟斗的时候；花园里或是炉火旁，敞着身躺在一张舒适的椅子上时；在他沐浴完，穿上体面的衣服，毅然决然得走进教堂，对着东面，（跪拜着，如果他喜欢如此的话）默念着使徒信经时候，即便那并不意味着他相信内中的每句话；当他听到或是吟唱那些极度煽情肤浅的流行歌曲时，不会为之感动却也不至于厌恶；当他决议谁是他最好的朋友，哪首诗是他的最爱的时候；当他去参加一个派对或是找女朋友的时候；当他打猎、射击、划船或是漫步在田野的时候；当他挑选着自己的衣服，或是自己的职业的时候。绝非有一个明确的理由，或是目的或是外在的事实在指导着他所做的事情，而往往是其内在，是驻在他内心的那个人主宰着他的种种行为。

When my mutton chop arrived she took me quite seriouly to task .

when我国羊肉印章抵达，她花了我不少seriouly任务。

I won't talk about Beethoven,Schumann or Bach, but some artists I know recent years. Rammstein is a German band who plays Death Metal. When I listened to their famous song "Mutter", it burned all my worries, unhappiness and reason. I cannot help to listen "Sternblumenacht" by Nenia, too, though the despration in it influenced me so much. And this song by Maximilian reminds me of something I try to forget, for long time.

不谈古典音乐中的大家贝多芬、舒曼、巴赫等，就我所了解的那点可怜的现代音乐来说，不论是Rammstein在Mutter中狂乱的嘶嚎，Nenia在Sternblumennacht中的绝望的低吟，还是 Maximilian Hecker在这首You came to me when I was born中忧伤的呢喃，都仿若能深入灵魂般，带来痛苦的共鸣。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。