In this paper, motion model of star spot which is combined with the effect of CCD noise has been established.
建立星敏感器星点像移模型和CCD 噪声影响模型，分析了星点质心定位精度与曝光时间的关系，并以CCD47-20 为例，对星敏感器的曝光时间进行了优化。
In this paper, motion model of star spot which is combined with the effect of CCD noise has been established. The centroid accuracy of the star spot affected by sub-pixels arithmetic and CCD noise were analyzed at different exposure time with CCD47-20 chip, and the optimum exposure time was calculated.
建立星敏感器星点像移模型和CCD噪声影响模型，分析了星点质心定位精度与曝光时间的关系，并以CCD47-20为例，对星敏感器的曝光时间进行了优化。
The on－ the－ spot test, measurement and analysis show that the use of comprehensive noise control techniques such as sound insulation, sound absorption and noise abatement can basically keep the noise level inside and outside the blower room and the room temperature in consistent with the preset targets, and has marked control effect, thus obtaining better social and environmental benefits.
介绍了凤凰山矿洗煤厂罗茨鼓风机房内外采用先进的噪声控制技术，有效地降低了罗茨鼓风机及周围的环境噪声通过现场试验测定分析采用隔声、吸声、消声等综合治理措施，机房内外的噪声及机房温度与制定目标基本一致，治理效果明显，取得了较好的社会效益和环境效益
Noise, carbon monoxide, sulfuric acid and dust in some operation spots did not met national sanitation requirements. TWA and STEL of carbon monoxide in meltshop both were 16.8~200.0 mg/m^3; that of sulphuric acid beside oxidizing and coloring trough both were 1.05~12.10 mg/m^3; that of dust in surface treatment workshop were 15.75 mg/m^3 and 7.0~77.0 mg/m^3 respectively; noise intensity in sawing rods spot was 110 dB.
部分作业岗位噪声、一氧化碳、硫酸、粉尘监测结果不符合国家卫生标准，如熔炼车间的一氧化碳时间加权平均浓度和短时接触浓度均为16.8~200.0 mg/立方公尺，氧化着色槽旁硫酸TWA和STEL均为1.05~12.10 mg/立方公尺；表面处理车间喷涂处粉尘TWA浓度为15.75 mg/立方公尺，STEL为7.0~77.0 mg/立方公尺，锯棒处噪声强度为110 dB。
The basic structure of reducer as well as testing equipment, probe spot and testing method of Structure-borne noise and air-borne noise is presented.
以中心输入式双环减速器为对象，介绍了减速器基本结构及进行结构噪声和空气噪声测试的设备、测点及测试方法。
Peace and monastic discipline reign in their laboratories, where not a spot is to be found and not the slightest noise is to be heard.
他们的实验室非常的安静，就像是在寺庙里，僧侣都噤口不言，地板也是一尘不染，整个房间都鸦雀无声，听不到一点吵闹。
The shark's head was out of water and his back was coming out and the old man could hear the noise of skin and flesh ripping on the big fish when he rammed the harpoon down onto the shark's head at a spot where the line between his eyes intersected with the line that ran straight back from his nose.
鲨鱼的头露出在水面上，背部正在出水，老人听见那条大鱼的皮肉被撕裂的声音，这时候，他用鱼叉朝下猛地扎进鲨鱼的脑袋，正扎在它两眼之间的那条线和从鼻子笔直通到脑后的那条线的交叉点上。
The shark's head was out of water and his back was coming out and the old man could hear the noise of skin and flesh ripping on the big fish when he rammed the harpoon down onto the shark's head at a spot where the line between his eyes intersected with the line that ran straight back form his nose.
鲨鱼的头露出在水面上，背部正在出水。老人听见那条大鱼的皮肉被撕裂的声音，这时候，他用鱼叉朝下猛地扎进鲨鱼的脑袋，正扎在它两眼之间的那条线和从鼻子笔直通到脑后的那条线的交叉点上。
This paper aimed at attacking and noise problem of high spot closed gripper mechanism in the running process, and made theoretical analysis and application research.
本文针对高点闭牙机构在工作过程中冲击和噪声大的问题，对机构的动力特性进行了理论分析和应用研究，建立了机构完整的动力特性分析方法。
Through the spot measurement of the pump and downstream pipeline noise, and analyzing the spectrum analysis curve of sound pressure level and sound intensity level, this paper offers basis for the fundamental reason study of high vibration and noise, and puts forward t.
通过对泵及下游管线噪声进行现场测量，以及对各测点声压级谱分析曲线和声强级谱分析曲线的分析，为研究其振动和噪声高的根本原因、提出合适的改造方案提供依据。
Because the change of signals is complex and the amplitude narrow in the process of spot welding, the common extraction method will be inaccuracy, based on the theory of signal and nonlinear dynamics, considering the better noise immunity and express ability to change feature of signal as a whole, the fractal dimension from the signals of electrode voltage, welding current, welding sound and electrode displacement are extracted in the paper; according to the input feature of energy of voltage to nucleation of spot welding, the high-order spectrum is used to analysis the voltage signal, and the five max spectral line of line spectrum of three-order cumulant slice of voltage signal. Through analyzing to non-linear feature of welding current, the chaotic characteristic is discovered, and the chaotic characteristic can reflect the weak change of signal, Lyapunov exponent is the characterization value of chaotic characteristics of signal, because of the great effect of current signal to nugget size and spatter, the Lyapunov exponent of current signal is extracted as the second feature.
由于在铝合金点焊过程中，各类信号的变化比较复杂且变化幅度较小，传统的特征提取方法就显得不够准确了，因此，本文结合信号分析理论和非线性动力学理论，考虑到信号分形维数较强的抗噪能力，及该指标对数据信号变化特征的总体反映能力，对点焊电极电压、点焊电流、点焊过程中的声发射信号和电极位移信号进行分形维数特征提取；根据电压对点焊形核的能量输入特征，对电压信号进行了双谱分析，提取了其三阶累积量的线谱最大5个谱线的均值作为电压的第二特征；通过对点焊电流的非线性分析发现，点焊电流信号具有混沌特征，而混沌特征能够有效反映信号的微弱变化，数据序列的混沌特征用Lyapunov指数来表征量，鉴于电流信号的变化对熔核尺寸和飞溅产生的影响极大，因此提取电流的Lyapunov指数作为电流的第二特征。
Property Services Department First, to defend the safety aspects: 1, security and foreign staff out of registration, further information and paging; 2, the day-to-day laboratory, the Treasury security inspection; 3, the night laboratory safety inspection; 4, to help clean up the waste solvents and laboratory reagents empty bottles; 5, waste solvents and solid waste treatment; 6, weekends and holidays security on duty; Second, health, green areas 1, experimental building within the foyer, corridors, staircases, conference rooms, lecture hall, bathroom and outdoor road cleaning; 2, garbage collection, clean up, Qing-Yun; 3, the dressing and green lawn, weeding, fertilizing, pruning, such as pest Third, logistics services 1, conference rooms, lecture hall and the registration of the use of projectors 2, the conference room tea service; 3, attendance statistics and switchboard services; 4, send and receive mail and express delivery, such as reservations, please help; 5, A4 traffic to the park and recharge cards of various checks Field Service; 6, with environmental protection sewage, exhaust fumes and noise of occasional spot checks; 4, equipment maintenance: 1, the safe use of utilities and maintenance; 2, central air conditioning heat pump units of safe use and maintenance; 3, VRV central air-conditioning, points of air conditioning (26 Taiwan dollars) in the safe use and daily maintenance (cleaning filters, check cooling agent 4, central air conditioning heat pump units of the circulating pump and fire pumps (8) and the safe use of the annual replacement of mechanical seals, bearings, motor maintenance and increase lubricants; 5, VAV system once a month of fresh air filter cleaning (to ensure the smooth flow of fresh air laboratory), a quarterly Tong Fenggui surface wind speed of the test, once a year, the frequency converter Inspection and Maintenance.
物业部服务内容一、保卫安全方面：1、安全保卫、外来人员进出登记、问询及传呼； 2、日常实验室、库房的安全巡检； 3、夜间实验室的安全巡检； 4、协助清理实验室的废溶剂和空试剂瓶； 5、废溶剂和生活垃圾的处理； 6、周末、节假日的安全值班；二、卫生、绿化方面 1、实验大楼内部门厅、走廊、楼梯、会议室、报告厅、卫生间以及室外道路的清洁工作； 2、垃圾的收集、清理、清运等； 3、草坪及绿化的修整、除草、施肥、剪枝、除虫等三、后勤服务方面 1、会议室、报告厅以及投影仪的登记使用 2、会议室的茶水服务； 3、考勤统计及总机服务； 4、收发快递及邮件、协助订餐等； 5、A4交通卡充值及应付园区各种检查等外勤事务； 6、配合环保方面污水、废气、噪音的不定期抽查；四、设备维护方面：1、水电的安全使用及维修； 2、中央空调热泵机组的安全使用及维护； 3、VRV中央空调、分体空调（计26台）的安全使用及日常维护（清洗过滤网、检查制冷剂等）； 4、中央空调热泵机组的循环水泵以及消防水泵（8台）的安全使用及年度更换机械密封、轴承、马达保养及加润滑油； 5、变风量系统每月一次的新风过滤网清洗、每季度一次的通风柜面风速测试、每年一次的变频器点检及保养。
The natural signal noise that makes use of the high fidelity frequency modulation radio simplicity looks for the antinomy and balances of a voice, with the spot of impromptu admixture, produce voice of chemical reaction.
利用立体声调频收音机单纯的自然信号噪音寻找出声音的矛盾和平衡，与现场即兴混合产生声音的化学反应。
By many years using test, it`s efficiency is high, noise is low, not easy blocking than any other machine. So it can extensive apply in thermal power plant and other spot for choosing materials.
经过多年的输煤系统应用证明，滚轴筛与其它类型的筛分机械相比，筛分效率高，噪音小，不易堵筛，可广泛应用于火电厂、选煤、选矿等散状物料分级筛分作业的场所。
Ieva's mother had her eye on her daughter but Ieva she managed to fool her, you know.'Cause who's going to listen to mother saying no when we're all busy dancing to and fro! Ieva was smiling, the fiddle it was wailing as people crowded round to wish her luck. Everyone was hot but it didn't seem to bother the handsome young man, the dashing buck.'Cause who's going to mind a drop of sweat when he's all busy dancing to and fro! Ieva's mother she shut herself away in her own quiet room to hum a hymn. Leaving our hero to have a spot of fun in a neighbor's house when the lights are dim.'Cause what does it matter what the old folks say when you're all busy dancing to and fro! When the music stopped then the real fun began and that's when the laddie fooled around. When he took her home, when the dancing was over her mother angrily waiting they found. But I said to her, Ieva, now don't you weep and we'll soon be dancing to and fro! I said to her mother now stop that noise or I won't be responsible for what I do. If you go quietly and stay in your room you won't get hurt while your daughter I woo.'Cause this fine laddie is a wild sort of guy when he's all busy dancing to and fro! One thing I tell you is you won't trap me, no, you won't find me an easy catch. Travel to the east and travel to the west but Ieva and I are going to make a match.'Cause this fine laddie ain't the bashful sort when he's all busy dancing to and fro
Ieva的妈妈小心的盯着他的女儿只是 Ieva还是想办法瞒住了阿，你知道因为谁也不会去听妈妈唠叨当大家都在旁边开心跳舞 Ieva在欢笑小提琴也在歌唱大家都聚到她的身旁祝她好运，所有女生都是那么漂亮火辣旁边帅小伙们则跳得就像活跃的雄鹿因为谁也不介意在这种场合流汗，当大家都在旁边开心跳舞 Ieva的妈妈把她叫走，带到自己的房间来哼无聊的赞美诗这给我们的英雄有机会一展身姿在邻居家的灯光开始暗淡的时候因为无论这些老家伙们说什么都无所谓当大家都在旁边开心跳舞音乐停止，但真正的乐趣其实才刚刚开始年轻人欢笑的聚在一起在舞曲结束的时候送对方回家在家里我们发现她妈妈正在生气地等待着但我对她说，Ieva，不用担心等等我们还要开心的跳舞我告诫她妈妈不要再这么烦人了不然我可能会做出什么不负责任的事情只要你安安稳稳的坐在你的房间里我在追求你女儿的时候绝不会伤害你因为你眼前的这个帅小伙还带着些野性的味道当他在那边开心跳舞的时候告诉你，你可抓不到我哦 No，你也会发现我一样不容易逮到从东边跑到西边，不过 Ieva和我看起来完全势均力敌因为这个帅小伙可不是那种会害羞的人当他在那边开心跳舞的时候
That we do not dare in the room loudly, fears awakens by noise the younger brother, but we simultaneously achieve the high spot ┅┅ that time feeling attagirl!
那一次我们在房间里不敢大声，怕吵醒弟弟，可是我们同时达到高点┅┅那次的感觉好棒！
This paper introduces the component and the operation principle of the jammer using DRFM, and analyzes the emergence of frequency spot error and spurious signal, and their influence on the jamming noise.
介绍了DRFM干扰机的组成和工作原理，并分析了瞄频误差和寄生信号的产生以及它们对干扰噪声的影响。
During the process of debugging in the factory, with applying the technology of auto-initialization of looper position measurement instrument to minimize the effect of looper position measurement noise; and new compensation way of AGC system in which the AGC compensates the forward roll speed; and the close loop controller for looper height some time ahead of the completion of looper rising process to solve the soft-touching problem of strip and looper; and intelligent control of looper down automatically according to rolling speed, which all greatly improve the hot strip rolling system`s performance, .gaining unanimous favorable comments of the operators and the-spot technical staff.
另外在现场调试的过程中，提出了利用活套位置检测自动校零技术减少活套检测时的干扰误差；利用AGC控制理论实现了后架补偿的控制方式；利用升套过程中提前进入套高闭环来解决升套过程当中的软接触问题；利用主速度自适应方式来实现落套控制；利用附加的积分控制器来解决精轧机组末架机械特性偏软引起的拉钢现象，取得了很好的控制效果，受到现场技术人员和操作工人的普遍欢迎和一致好评。
design and performance analysis of jamming signal are difficult in radar jamming system, noise amplitude modulation jamming is a common used signal in the system. taking an example of noise amplitude modulation jamming, with analyzing the principle of noise amplitude modulation, the model of noise amplitude modulation is built by simulink language. alignment for frequency, frequency targeting error of the half-bandwidth and frequency of targeting error in more than half the bandwidth of three conditions be put under different conditions noise in the am signal on the radar systems of interference effects. the jamming resultion is obtained in different conditions. simulation results is satisfactory in the spot jamming condition.
摘 要：雷达干扰系统中的干扰信号设计与性能分析是一个难点。噪声调幅信号是雷达干扰系统中常用的一种信号，以噪声调幅干扰为例，通过分析噪声调幅干扰的原理，建立了一个简单的噪声调幅信号模型，利用simulink语言对噪声调幅干扰进行建模仿真，针对频率对准、频率瞄准误差为半个中放带宽和频率瞄准误差大于半个中放带宽三种情况得到在不同条件下噪声调幅信号对雷达系统的干扰效果，结果显示在瞄准式干扰的条件下噪声调幅信号对雷达信号的干扰效果最为显著，说明噪声调幅信号适用于瞄准式干扰。
This paper presents CCD video signal conducts adaptive filter to remove noise impact, using differential and average method to find the rough location of dark spot, with the last partial least squares fitting method to find the precise location.
将CCD视频信号先进行自适应滤波，消除噪声影响，再利用差分法和取平均值的方法找到暗点的粗略位置，进而用最小二乘法进行局部拟合，确定精确暗点位置。