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The extremely high chargecarrier mobility in graphene has motivated the exploration of unique properties in other two-dimensional (2-D) materials, such as hexagonal boron nitride (h-BN), phosphorene, silicine, and the transition-metal dichalcogenides (TMDs). The latter compounds have generated great interest due to their potential for optoelectronic applications, since their band gaps are tunable...
This paper proposed a new steepest-descent based maximum power point tracker (MPPT) technique for a photovoltaic (PV) system. Power generation by a PV system depends on solar cell temperature and solar irradiance. Again PV system may have low power conversion efficiency if it operates at any arbitrary operating point because for a PV system at a single operating point called the maximum power point...
The electrochemical impedance spectroscopy (EIS) methodology has been extensively used to study the different aspects of electrochemical and biomedical practices. This paper presents the numerical simulation of impedance for electrode/electrolyte interface. The COMSOLR Multiphysics is used to study the interface impedance. The technology for Micro Electro Mechanical system (MEMS) helps to fabricate...
Semiconductor multiple quantum wells (QWs) have saturable absorption and saturable refractive index change properties. When it is embedded within a reflective Fabry-Perot cavity, the device shows forward and inverse saturation reflectivity for a radiation at cavity resonance wavelength with input intensity around the impedance matching point. Consideration of non-linear index change increases the...
This paper presents the standardization of three electrode device for bioimpedance study. The COMSOL Multiphysics is used as the simulation tool for the characterization of the microdevice. In the last decades, the bioimpedance methodology has been extensively used to study the different aspects of biomedical practices. The Micro Electro Mechanical system (MEMS) helps to fabricate miniature devices...
This paper proposes an approach for the design of multiple power system stabilizers (PSS) for multi-area automatic generation control (AGC) system with new deregulated scenario. Here, the concept of DISCO participation matrix (DPM) is also included. The analysis is conducted considering three pre-defined cases, out of which one is the violation of contract case. The optimal parameters of the PSS are...
Texture describes the surface characteristics object such as plants, skins, terrains etc. This paper is based on the comparative study on various approaches to identify the gray scale texture of an unknown object from a set of texture of a known object available in the database. We have focused on three approaches of comparing the input gray scale texture with the gray scale texture images of various...
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