色散離子波 的英文怎麼說
中文拼音 [shǎisǎnlízibō]
色散離子波
英文
dispersive wave- 色 : 色名詞[口語] (顏色) colour
- 散 : 散動詞1. (由聚集而分離) break up; disperse 2. (散布) distribute; disseminate; give out 3. (排除) dispel; let out
- 離 : Ⅰ動詞1 (離開) leave; part from; be away from; separate 2 (背離) go against 3 (缺少) dispens...
- 子 : 子Ⅰ名詞1 (兒子) son 2 (人的通稱) person 3 (古代特指有學問的男人) ancient title of respect f...
- 波 : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
- 離子 : [物理學] ion
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Once the wavelength approaches the intermolecular distance, the specific dispersion relation becomes important
一旦波長接近分子間的距離時,各自特定的色散關系就變得重要了。The position and size of the monochromator, focusing curvature radii and tilting angles of the germanium focusing monochromator under different different take - off angle, size and divergency of the second collimator and intensity loss due to the use of it were determined. the neutron flux at different wavelength, under different reflection and take - off angle of the monochromator and divergency of the first collimator, were given. the simulation on the aperture used for limiting beam size in front of the sample showed that, smaller the size of the aperture and further the distance from the aperture to the sample, greater the loss of the intensity and more serious the spread of the beam along vertical direction at the sample position which makes the practical sampling volume greater than expected
用蒙特卡羅模擬方法對中子應力衍射譜儀的設計方案進行了優化研究,提出了一系列可供參考的數據:確定了單色器的位置、尺寸、垂直聚焦單色器在不同起飛角下的聚焦曲率半徑和傾角;討論了第二準直器的尺寸和發散,以及使用第二準直器造成的強度損失;給出了在不同單色器反射面、起飛角、中子波長和第一準直器發散度的情況下樣品處的中子注量率,以及多種組合情況下譜儀的解析度曲線;對限束方孔的尺寸、距離樣品遠近對強度損失和測量中的影響做了深入研究。The dispersion curves and simulated dispersion relationship of longitudinal waves without the langmuir wave, the ion sound wave and the ion plasma wave are obtained
得到了除朗繆爾波、離子聲波和離子等離子體波外其它縱波的色散曲線和擬合色散關系。The equivalent model can describe the inhomogeneity as a result of the modulation of the plasma density ", so we can solve the dispersion accounting for the plasma grating effects more easily
等效模型把等離子體柵的調制效應體現出來,在求解填充等離子體柵的波導系統的色散關系方面要更為容易。Using the two - stream fluid model, the linear dispersion relation is derived assuming a two - dimensional spatial geometry. two cases are considered, one is that the 2d spatial geometry is defined by the plane containing the two counterstreaming electron populations and the perturbation wave vector ( referred as the xy plane ), and the other is that the geometry is defined by the plane being vertical to the two counterstreaming electron populations ( referred as the yz plane )
對高能束流和電子迴流構成的雙流系統,建立冷等離子體流體模型,採用簡正模分析方法,分別考慮擾動波矢在平行於電流傳播方向的平面(記為xy平面)上和在垂直於電流傳播方向的平面(記為yz平面)上這兩種情況,推導了不穩定性的色散關系。The numerical results of the dispersion relation show some nonlinear effects : for a fixed geometry of a waveguid, beam parameters and plasma density, the increment of the modulation parameter may lead to a slight increment of the operating frequency, however, as the modulation parameter increases further, saturation may occur and the dispersion relations are hard to be separated, it is due to the overmodulation of the microwave power, this phenomenon itself belongs to the nonlinear effects
對於一定的波導、電子注參量和等離子體密度值,等離子體調制系數的增加,使工作頻率略微升高。但是,隨著等離子體調制系數的進一步增加,色散曲線變得彼此之間不可分辨,可以認為是等離子體的過調制導致了柵的飽和。這一現象是非線性的,可見,等離子體柵和調制場中文摘要是非線性關系,等離子體柵是非線性j 。We propose the joint filterbank precoders and decision feedback equalizers structure at first, by which the dispersive channel is equivallent into parallel independent flat fading subchannels such that the diversity gain of the receiver is increased. then we adopt the discrete - time ( dt ) canonical model to convert the problem of blind signal processing of tv dispersive channels into processing the time - invariant multi - channels model blindly, and discuss the problem of blind equalization and identification of tv dispersive channels based on this new model
第一種是採用濾波器組聯合均衡方法將色散通道等價為一組獨立的平坦衰落子通道,以提高接收機的分集增益;另外一種是提出採用離散正則模型將時變色散通道的盲信號處理轉化為時不變多通道模型的盲信號處理,並針對該模型對時變色散通道的盲均衡與盲辨識方法進行了詳細討論。Silicon - on - insulator ( soi ), boasting good optical and electronic properties, is the common material of integrated circuits ( ics ), micro - optical - electronic - mechanical - systems ( moems ) and planar - lightwave - circuits ( plcs ), which makes the monolithic integrations of optical, electronic and mechanical components possible. the mature technologies and superior equipments out of ics can be borrowed to investigate soi plcs. some electro - optical effects of kerr effect, franz - kedysh effect and plasma dispersion effect in silicon can be used in optical modulator and electronic - optical switch
絕緣層上的硅( soi )材料具有良好的光學和電學特性,成熟的集成電路( ic )製作工藝和設備可以應用或借鑒于soi平面波導器件的製作中;硅的克爾( kerr )效應、弗朗茲-凱爾迪什( franz - kedysh )效應和等離子色散( plasmadispersion )效應等電光效應可以應用於電光調制器和電光開關的製作中。Some classes of explicit and exact travelling wave solutions of a nonlinear dispersive - disspative equation , which describes weak nonlinear ion - acoustic waves in a plasma consisting of cold ions and warm electrons , are obtained by a kind of com bination of the direct algebraic method and the ansatze method. some results of other papers can be regard as a special case. the method in this paper can also be applied to the higher dimensional nonlinear evolution equations
本文通過直接代數方法與假設方法的一種結合求出了一個用於描述由冷離子和熱電子組成的等離子體弱非線性離子聲波演化的非線性色散-耗散方程的幾類顯式精確行波解.這里的結果包含已有文獻的結果作為特例.本文的方法也適用於高維非線性發展方程One is the colorful watermark medical image electronic signature that based on the discrete wavelets transformation. in this method, using color medical images as the original image, a new watermark hidden algorithm, which uses mixed chaos sequences to preprocessing the electronic signature information, is presented. this algorithm transforms the color space, by changing wavelets ’ low frequency coefficient to embed the watermark in
其中一種是基於離散小波變換的水印彩色醫學圖像電子簽名方案;在這個演算法中,採用彩色醫學圖像為原始圖像,提出利用混合混沌序列對電子簽名信息進行預處理的新的水印隱藏演算法,對真彩圖像進行色彩空間轉換,通過改變小波低頻系數將水印嵌入到小波的低頻帶。In addition, for a dispersive high frequency system, because of the requirement of the phase in - step between the beam and electromagnetic wave, the bandwidth are expected to be located in a narrow range
另外,對干填充等離子體的色散高頻系統,由干電子注和電磁波互作用的同步要求,系統帶寬必然分佈在某一有限范圍內。4. finally, the investigation of wave propagation characteristic in round waveguide filled uniformity plasma periodically magnetized is done, by numerical calculation, to analyze the effect on the propagation characteristic when additional magnetic field amplitude, background magnetic field and plasma density change
4 .研究了電磁波在填充周期磁化均勻等離子體金屬圓波導中的傳輸特性,推導出該周期慢波結構的色散方程,通過數值計算,繪出了色散曲線圖3. in order to show the fact that the - licrowave modulates the background plasma density and the density grating influences the propagation of the microwave in return, the dispersion relation of the dielectric cerenkov maser filled with plasma grating is derived when the modulation parameter is varied
三、為了反映等離子體被微波場調制從而形成密度周期性分佈的等離子體柵,反過來影響電磁波的傳播這一物理事實,在調制系數變化的情況下,從等離子體柵的等效模型出發,推導了等離子體柵填充的介質cerenkov脈塞的色散方程。分享友人