کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1864794 | 1037758 | 2008 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Wave scattering by many small particles embedded in a medium
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Wave scattering by many small particles embedded in a medium Wave scattering by many small particles embedded in a medium](/preview/png/1864794.png)
چکیده انگلیسی
Theory of wave scattering by many small bodies is developed under various assumptions concerning the ratio ad, where a is the characteristic dimension of a small body and d is the distance between neighboring bodies d=O(aκ1), 0<κ1<1. On the boundary Sm of every small body an impedance-type condition is assumed âuMâN=ζmuM on Sm, 1⩽m⩽M, ζm=hmaâκ, 0<κ, hm are constants independent of a. The behavior of the field in the region in which M=M(a)â«1 small particles are embedded is studied as aâ0 and M(a)ââ. Formulas for the refraction coefficient of the limiting medium are derived under the assumptions: (a) κ1=(2âκ)/3, 0<κ⩽1, and (b) κ1=1/3, κ>1. A method for creating materials with a desired refraction coefficient is proposed and justified theoretically on the basis of the above results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 372, Issue 17, 21 April 2008, Pages 3064-3070
Journal: Physics Letters A - Volume 372, Issue 17, 21 April 2008, Pages 3064-3070
نویسندگان
A.G. Ramm,