GaN-based materials are well-recognized for their exceptional optical qualities, particularly in the blue and UV parts of the spectrum. In addition, their wide bandgaps allow efficient operation at room temperature and higher. This work will describe the room-temperature performance of optically-pumped GaN photonic crystal (PC) nanobeam lasers, with thresholds as low as 9.1 μJ/cm2, the lowest r...

oxides of nitrogen are the major emission from a diesel engine. it is due to heterogeneous diffusion combustion system with fuel-rich regions, which produce high local temperature around the periphery of the spray where high formation rate of no is promoted. various techniques are therefore employed to reduce the nox emission like egr, scr, etc. in this present work a rotating injector is a tec...

This paper presents the surface piezomagnetoelasticity theory for size-dependent buckling analysis of an embedded piezoelectric/magnetostrictive nanobeam (PMNB). It is assumed that the subjected forces from the surrounding medium contain both normal and shear components. Therefore, the surrounded elastic foundation is modeled by Pasternak foundation. The nonlocal piezomagnetoelasticity theory i...

Micro/nanocantilevers have been employed as sensors in many applications including chemical and biosensing. Due to their high sensitivity and potential for scalability, miniature sensing systems are in wide use and will likely become more prevalent in micro/nano-electromechanical systems (M-NEMSs). This paper is mainly focused on the use of sensing systems that employ micro/nano-size cantilever...

The main goal of this research is to provide a more detailed investigation of the size-dependent response of magneto-electro-thermo-elastic (METE) nanobeams subjected to propagating wave, ...

Oxides of Nitrogen are the major emission from a diesel engine. It is due to heterogeneous diffusion combustion system with fuel-rich regions, which produce high local temperature around the periphery of the spray where high formation rate of NO is promoted. Various techniques are therefore employed to reduce the NOX emission like EGR, SCR, etc. In this present work a rotating injector is a tec...

Nonreciprocal phonon emission is predicted theoretically from the coherent excitation of two coupled optomechanical cavities arranged along a phoxonic crystal nanobeam. The latter consists periodic array holes and stubs exhibits simultaneous photonic phononic bandgaps. It shown that nonreciprocal arises combined effect spatial symmetry their underlying modes temporal phase shift between sources...

In this paper we describe a new method to measure the position of an overhead line in a railway application. The height and stagger of an overhead line can nowadays be measured through a stereo-vision system composed of two line scanner cameras; the existing applications, unfortunately, cause some malfunctioning. In this work we want to test a new method that increases the resolution of wire im...