The Rigorous Coupled-Wave Analysis (RCWA) is a method to compute diffraction of a field by a given grating structure. Within various applications such as metrology, it is important to know how the field reacts to small perturbations in the grating. This behaviour can be expressed by the field derivatives with respect to a certain parameter. Approximations of these derivatives can be found by us...

Shear wave velocity is a basic engineering tool required to define dynamic properties of soils. In many instances it may be preferable to determine Vs indirectly by common in-situ tests, such as the Standard Penetration Test. Many empirical correlations based on the Standard Penetration Test are broadly classified as regression techniques. However, no rigorous procedure has been published for c...

Diffraction gratings are often used in optical metrology. When an electromagnetic wave is incident on a grating, the periodicity of the grating causes a multiplicity of diffraction orders. In many metrology applications one needs to know the diffraction efficiency of these orders. Since the period of a grating is often of the same order of magnitude as the wavelength, it is needed to solve Maxw...

Abstract: In this study, in order to improve the efficiency and the safety of the LNG storage facilities, the rigorous hybrid dynamical model is proposed. This model is composed of continuous state dynamics which estimate the boil-off rate (BOR) based on understanding of the energy and mass transfer between the stratified cells of LNG storage tanks and discrete state dynamics which describe the...

A rigorous methodology for mapping thermal and RGB images on three-dimensional (3-D) models of building façades is presented. The developed method differs from most existing approaches because it relies on the use of thermal images coupled with 3-D models derived from terrestrial laser scanning surveying. The primary issue for an accurate texturing is the coregistration of the geometric model o...