Abstract A light-trapping transparent electrode design based on sub-surface binary dielectric gratings is introduced and demonstrated experimentally. The structure consists of metallic wires patterned with an array silicon nanobeams. Optimization the grating geometry achieves selective suppression zero-order diffraction, while enabling redirection incident light to angle that exceeds critical l...

One of the recently considered applications of fiber optic, in their usage in building lighting systems. In this research, in order to reduce energy consumption, by transmission of sun light from the roof to the desired place (i.e. an office), the required standard luminance is produced. The main aims of this research are : 1. Reduction of energy consumption. 2. Making the place compatible with...

The existence of zero-order causal paths in bond graphs of physical systems implies the set of state equations to be an implicit mixed set of DifSerential and Algebraic Equations (DAEs). In the block diagram expansion of such a bond graph, this type of causal path corresponds with a zero-order loop. In this paper the numerical solution of the DAEs by methods commonly usedfor solving stiff syste...

The identification of linear second order models of mechanical systems has been object of intensive research and of several papers in the last decades. In this thesis the interest is focused on mechanical systems which can be described by a second order vector model of the following form: Mq̈ +Dq̇ +Kq = f (1) where M and K are symmetric positive definite while D is only symmetric positive semidef...

The paper provides results for the application of boundary feedback control with Zero-Order-Hold (ZOH) to 1-D linear, first-order, hyperbolic systems with non-local terms on bounded domains. It is shown that the emulation design based on the recently proposed continuous-time, boundary feedback, designed by means of backstepping, guarantees closed-loop exponential stability, provided that the sa...

Vplyv diskretizačnej metódy na výkonnosť digitálnych riadiacich systémov The design of control system can be divided into two steps. First the process or plant have to be convert into mathematical model form, so that its behavior can be analyzed. Then an appropriate controller have to be design in order to get the desired response of the controlled system. In the continuous time domain the syst...