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立方非线性Schrodinger方程的Jacobi椭圆函数周期解 总被引:7,自引:3,他引:4
本文利用F-展开法,求出了立方非线性Schrodinger方程的由Jacobi椭圆函数表示的行波解;并且在极限情况下,得到了方程的孤波解. 相似文献
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本文利用F 展开法 ,求出了立方非线性Schr dinger方程的由Jacobi椭圆函数表示的行波解 ;并且在极限情况下 ,得到了方程的孤波解 相似文献
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HIGHER ORDER BURGERS EQUATION 总被引:1,自引:0,他引:1
王明亮 《数学物理学报(B辑英文版)》1986,(3)
In this paper, the Burgers equation is generalized to the (compound) higher order Burgers equation which can be reduced to the higher order linear equation in terms of the Bcklund transformation (B T) between them. Also B T of the higher order Burgers equation to itself is derived. As an application, the exact solution of an initial value problem for a third order Burgers equation is given. 相似文献
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通过对1 苯基 3 (4 硝基苯基) 5 (9 蒽基) 2 吡唑啉及其相关化合物的吸收光谱进行比较研究,发现该分子的吸收不同于分子内"Ar—N—N=C—Ar"发色团与蒽发色团的叠加.其中"Ar—N—N=C—Ar"发色团的吸收系数增强了12倍,存在极大的增色效应,蒽的精细吸收峰也均红移了20nm左右.说明两者存在基态下的相互作用.优势构象理论分析表明这是由于基态π电子轨道重叠的高位共轭效应引起的.该发现将有助于解释该类分子激发态下发色团间的非共轭电荷转移以及能量转移,并为寻找更大吸收系数的该类化合物提供了较好的方法. 相似文献
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IntroductionInthepresentpaperweconsiderthecoupledKlein_Gordon_Schr dinger (KGS)equationsasfollows:iψt+ 12 Δψ=-φψ ,φtt-Δφ+m2 φ=|ψ|2 .( 1 )( 2 )( 1 )and ( 2 )describeaclassicalmodelofinteractionofnucleonfieldwithmesonfield[1],whereψisacomplexscalarnucleonfield ,φ_arealmesonfi… 相似文献
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考虑到原子的非简谐振动,应用固体物理理论和方法,计算了SiC类石墨烯的简谐系数和非简谐系数,得到它的德拜温度、热容量和热导率等随温度的变化规律,探讨了原子非简谐振动对它的热输运性质的影响.结果表明:SiC类石墨烯的德拜温度随温度的升高而在117-126 K之间线性增大,定容比热随温度升高而非线性增大,热导率随温度升高而非线性减小,温度较低时变化较快,而温度较高时变化较慢,并随着温度升高而趋于常量;考虑到非简谐振动后,SiC类石墨烯的德拜温度、定容比热和热导率的值分别大于、小于和大于简谐近似的相应值,温度愈高,其差值愈大,即温度愈高,非简谐效应的影响愈显著;二维平面状的SiC类石墨烯的定容比热和热导率随温度的变化规律,与三维块状SiC晶体总体趋势相同,只是具体数值不同. 相似文献
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A new kind of co-crystal of buprofezin(C(16)H(24)FN3OS) with hydrofluoric acid has been prepared through evaporation technique. It crystallizes in the triclinic space group P1, with a = 9.9733(8), b = 10.3460(9), c = 10.5739(12) ?, a = 68.655(9), b = 73.291(9), g = 66.738(8)o, V = 920.34(17) ?~3, Mr = 325.44, Dc = 1.174 g/cm^3, Z = 2, F(000) = 348, m = 0.190 mm-1, the final GOOF = 1.042, R = 0.0485 and wR = 0.1167. Single-crystal X-ray diffraction, XRPD, DSC, TGA, Hirshfeld surface analysis, Raman spectroscopy and FT-IR were used to characterize the co-crystal. It has a twodimensional plane structure, and the intermolecular interactions of co-crystal are mainly H–F×××H, H–O×××H and H–O×××H. Thermology study further confirmed that co-crystal has stronger thermal stability and higher melting point than buprofezin, and it has stronger water solubility. The results show that this co-crystal is valuable for the study of residual activity and application effects of buprofezin. 相似文献
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