With the establishmentof the equivalent medium model, RTM-DRE was applied to study radiative transfer intransparent medium with scattering particles. By taking into account of absorption andscatter of particles, absorption of binder and reflection of interface, the apparent spectrumabsorption model of thermal control coatings was developed by RTM-DRE combined withMies theory. Validity, computational error and time of the model were validated andanalyzed. Furthermore, the apparent spectrum absorption characteristics of thermal controlcoatings were studied, and the influences of optical characteristics of binder and particles,volume fraction of particles, particles diameter, characteristics of interface, and incidentangle of irradiance were analyzed.

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The frequency characteristics expression and the characteristic matrix are derived, and the influence of the filter parameters on frequency characteristics is investigated.

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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.

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The main contents of this report include:(1) I nvestigation and analysis of the current status and characteristics of economic development, electric power consume and electric load in North China, Northeast China, Northwest China, East China, and Central China from 2000 to 2004;(2) Indexes and contrast analysis of major power networks load characteristic in China;(3) Analysis of Major effect factors for load characteristics, including development level and structure of economic, structure of electric power consumption, geographical and climatic environment, DSM, electrovalence, load shedding and so on;(4) Change trend analysis of major power networks load characteristic in China;(5) Target forecast of major power networks load characteristic in China in the tenth five-year plan;(6) Main conclusions and suggestions.

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In the paper, a mathematical model of quadrant detector output signal was established by light energy integral.

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Control valve flow characteristics are linear features, such as the percentage of properties and characteristics of three kinds of parabola.

調(diào)節(jié)閥的流量特性有線性特性久久久www黄页免费网站，等百分比特性及拋物線特性三種。三種注量特性的意義如下

Firstly, the paper, combining the characteristic of synchronous pulse bursts and inhibition with the modified PCNN model, presents a way of finding the foveation points in the images adaptively and effectively, and simulates the human vision system. Secondly, PCNN is extended to PCNNs, based on the properties of information couple and transmission, an algorithm that is used to fuse images of the same target got by several sensors to an image is presented to simulate the human vision system. Thirdly, combining the properties of synchronous pulse bursts, capture, and transmission and competition of waves, the paper presents two ways of classification, one is an algorithm based on the properties of neuron to capture and inhibit to classify the data taking on any complex unlinear distribution robustly, the other is based on the restricted distance and modified of the former to remove the influence of inferior samples in classification; Finally, based on the accumulative difference pictures, and the forming and transmission of PCNN wave, selecting and controlling the direction of autowave by connecting the neighbouring neurons selectively, the paper presents a way to simulate the tracks of moving object and detect the moving direction.

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Geometrical and physical parameters of components of the absorber in the virtual prototype follow from those technical data of a specific passenger car. Bench tests are conducted and a series of experimental results have been obtained by the MTS absorber test machine for the damping force-velocity which can be imposed in the virtual prototype for dynamic simulation. The piecewise, the hysteretic looped and the abnormal looped hysteretic force-velocity curves for the absorbers are, respectively, input into the prototype.

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The experiments were conducted with one-crop cultivar and two-crop cultivar of Iris germanca . Photoperiod in nature condition and the effects of different photoperiods on flower bud differentiation and photosynthetic characteristics were investigated.

本試驗以德國鳶尾一次花和二次花品種為材料永久操，從植株生物學(xué)特性和光合特性兩個層面上，研究一二次花品種在自然狀況下的光合特性以及不同光周期對其花芽分化和光合特性的影響国产一区二区欧美日韩在线观看。

At the beginning of the thesis, the structure of usually used radome is introduced and the parameters of electromagntic characters are described in Chapter Ⅰ; the different methods for analysis of the electromagnetic characters of radome are summarized in Chapter Ⅱ; the propagation of 3-D beam in free space is conducted in Chapter Ⅲ; then in Chapter Ⅳ, the 3-D Complex Ray Theory are analyzed and the characters of transmitted field of sum and difference beams through radome are studied, and the relative formulations of calculation are rekened; at last the electromagnetic characters of the ellipsoidal sandwich radome and the plane single-layered radome are discussed, and suggestions for optimization of electromagnetic properties of radome are given.

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cerebrotonic：大腦緊張型的表示大腦緊張型特性的孤僻氣質(zhì)的

cerebrotonia | 大腦緊張型,精神抑制型氣質(zhì)孤僻 | cerebrotonic | 大腦緊張型的表示大腦緊張型特性的孤僻氣質(zhì)的 | cerebrovascular accident | 腦血管意外

characteristic of：特有的,表示...特性的

8国产在线看你懂得、capable of 有...能力/技能的;能...的,可...的 | 9国产欧美在线不卡、characteristic of 特有的,表示...特性的 | 10、common to 共同的,共有的

characteristic of：表明...特性的

characteristic a.表明特性的;特有的 | characteristic of... 表明...特性的 | accompany vt.與...同時發(fā)生

formal model of system behavior：系統(tǒng)特性的形式模型

軟件生命周期的形式模型 formal model of software life cycle | 系統(tǒng)特性的形式模型 formal model of system behavior | 文法的形式概念 formal notion for grammar

midwestern：中西部的;有中西部特性的

frightening 令人恐懼的 (4) | midwestern 中西部的;有中西部特性的 (2) | warm-hearted 熱心腸的 (5)

Statistical Distribution of Traffic Characteristics：交通特性的統(tǒng)計分布

泊松分布-- Poisson Distribution | 交通特性的統(tǒng)計分布-- Statistical Distribution of Traffic Characteristics | 駕駛員處理信息的特性 Driver Information Processing Characteristics

idiocratic：特性的

idiocrasy 特性 | idiocratic 特性的 | idiocratically 特性地

idiocratic：特性的; 癖好的 (形)

idiocrasy 特性; 癖好 (名) | idiocratic 特性的; 癖好的 (形) | idiocy 白癡; 白癡的行為 (名)

Perks：角色專屬特性的天賦樹

- Perks:專屬角色特性 | Perks:角色專屬特性的天賦樹 | Status:提昇角色能力

Unites：各種部隊特性的定義(大小,速度,武器等)

Unitpics 建造選單裡的圖片 | Unites 各種部隊特性的定義(大小,速度,武器等) | Weapons 武器特性定義(射程,速度,等)