Determining of geometrical characteristic parameters of particle fractal aggregates from light scattering measurement signals

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Light Scattering by Fractal Aggregates: A Review

This paperpresents areviewof scatteringandabsorptionof light by fractal aggregates. The aggregates are typically diffusion limited cluster aggregates (DLCA) with fractal dimensions of D ’ 1:75, which occur frequently in aerosols and colloids, but other types of aggregates are discussed as well. The results of the review are quite general. A scaling description of the scattering of waves forms t...

متن کامل

Light scattering by fractal aggregates : a Monte-Carlo method in the geometrical optics limit

2014 A numerical Monte-Carlo method is presented to study the scattering of polarized light by an assembly of identical spheres in the geometrical optics limit where the radius of the spheres is larger than the wavelength of the incident beam. In this limit both coherence effects and diffraction phenomena are not taken into account. The rays (direction and intensity) are followed during their r...

متن کامل

investigation of effective parameters on the rigidity of light composite diaphragms (psscb) by fem

در این رساله با معرفی سقف های psscb متشکل از ترکیب ورق های فولادی ذوزنقه ای و تخته های سیمانی الیافی به عنوان سقف های پیش ساخته (سازگار با سیستم سازه ای قاب های فولادی سبک) به بررسی پارامترهای موثر بر صلبیت سقف، پرداخته می شود. در تحقیق حاضر ابتدا به مدل سازی دو نمونه سقف آزمایش شده، به روش اجزاء محدود با استفاده از نرم افزار تحلیلی abaqus ver 6.10 پرداخته شده است. نمونه های ساخته شده تحت اعما...

Light scattering by fractal aggregates : a numerical investigation

2014 A numerical method is described which is able to calculate the scattering of polarized light by a large assembly of identical spherical particles, of complex refractive index, such as a colloid or aerosol aggregate. The method takes care of multiple scattering inside the aggregate, except that the criterium for the Rayleigh approximation must be satisfied for the individual particles. It i...

متن کامل

Dynamic light scattering from colloidal fractal monolayers.

We address experimentally the problem of how the structure of a surface monolayer determines the viscoelasticity of the interface. Optical microscopy and surface quasielastic light scattering have been used to characterize aggregation of CaCO3 particles at the air-water interface. The structures formed by cluster-cluster aggregation are two-dimensional fractals that grow to eventually form a pe...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Thermal Science

سال: 2020

ISSN: 0354-9836,2334-7163

DOI: 10.2298/tsci200214203x