The fact that solution of wave equation is equivalent to the extreme value of quadratic function solution was verified, and the existence and uniqueness of the quadratic function solution was also proved.

證明了波動方程的解和二次泛函極值解的等價性，以及二次泛函極值解的存在唯一性，為其在液壓傳動中流體瞬變分析的進一步應用提供了理論依據(jù)。

The thought based on the hyperbola function method is extended,and more explicit and exact solutions are successfully derived,including shock wave type solutions with break point and exponential function type solutions .

在此基礎(chǔ)上又對雙曲函數(shù)法的思想進行了推廣，從而獲得了其更多的顯式精確解欧美精美视频一区二区三区四区，包括間斷型激波解和指數(shù)函數(shù)型解。

In view of universality, function generator with the core of high speed MCU uses the chips of DDS and FPGA. On the basis of generating routine sine wave, it can modulate signal frequency and range. At the same time function generator can generate binary PSK and ASK signal.

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The function can be even non-continuous, e.g., swath wave or jump function.

混沌控制中有一個特殊的領(lǐng)域亚洲第一调教福利视频，就是混沌系統(tǒng)的同步。

The longitudinal component of electromagnetic wave propagating in fiber can be expressed by Based function or the modified Bessel function of second kind. Based on this principle, we put forward a simple method for generating a Bessel beam with glass capillary and focusing lens.

對光纖中傳播的電磁場分析發(fā)現(xiàn)国产自慰喷水福利，其縱向分量可以用貝塞耳函數(shù)及第二類變態(tài)貝塞耳函數(shù)來描述久久这里只是精品，據(jù)此，提出一種利用玻璃毛細管和聚焦透鏡實現(xiàn)貝塞爾光束的簡易方法www.操.com。

The variation of pH and conductivity of various phosphate solution with the solution temperature were obtained based on the physical chemistry theory and ionization equilibrium theory in electrolytic solutions, and be testified experimentally under radiation of ultrasonic wave. The pH was a linear function with the reciprocal of thermodynamic temperature, and the conductivity was a linear function with the temperature in phosphate solution.

三欧美日韩亚洲第一页、超聲波對雙水相系統(tǒng)組成物質(zhì)、兩相組成及溶質(zhì)分配影響的研究根據(jù)物理化學原理和電解質(zhì)溶液電離平衡理論分析推導和實驗驗證91精品国产综合在线蜜臀，揭示了超聲波作用下不同組成磷酸鹽溶液的pH值和電導率隨溶液主體溫度變化的規(guī)律：磷酸鹽溶液的pH值與溶液主體絕對溫度的倒數(shù)成線性關(guān)系一级毛片网推荐，磷酸鹽溶液的電導率與溶液主體溫度成線性關(guān)系。

Based on the previous study, teleseismic waveform data, observed in the West Yunnan and volcanic area, is gathered to study their S wave velocity structures by the receiver function. Underneath structure features are shown in those areas, and their geodynamical implication is also discussed. The receiver function approach and nonlinear inversion proceedings are reviewed in this paper; the basic theory of the neighborhood algorithm is also analyzed.

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We investigated the receiver functions in a horizontally-layered medium with arbitrary oriented hexagonally symmetric anisotropy, and discussed the phenomenon of shear-wave splitting and energy deviation in an anisotropic medium. The anisotropic structure yields patterns of receiver function amplitudes and arrival times on both the radial and transverse components that are a systematic function of source-receiver back azimuth. We also investigated the influence of varying anisotropy parameters, e.g.

采用具有任意方向?qū)ΨQ軸的橫向各向同性介質(zhì)系統(tǒng)国产孕妇对白在线观看网站大全下载，探討了各向異性介質(zhì)中接收函數(shù)表現(xiàn)出的橫波分裂欧日美韩二区、能量偏離等特征影音先锋av资源网站，并系統(tǒng)剖析了各向異性介質(zhì)對稱軸方位角、傾角以及各向異性層位分布對接收函數(shù)方位變化花樣的影響免费A片视频在线观看。

When the modulus m approaches to 1 or 0, then the hyperbolic function solutions (including the solitary wave solutions) and trigonometrical function solutions are also given.

在極限情形免费大型黄色网址，我們也得到所考慮方程的孤立波解和三角函數(shù)解。

DG1000 series function / aleatoric and undee generator can offer 5MHz, have rise quickly edge and drop the square wave of the edge, and have the frequency of high accuracy, broadband belt measure a function.

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