This study presents a novel multilevel inverter structure that can operate in both switched capacitor and asymmetric DC source modes. In the first mode, it produce seven-level output voltage employing two capacitors one single supply. The five-level is produced while operating second mode. ratio between input for mode 1:3 (triple gain). During of self -balanced whereas higher proposed reduces t...

The microchannel heat sink has been recognized as an excellent solution in high-density flux devices for its high efficiency removal with limited spaces; however, the most effective structure of microchannels dissipation is still unknown. In this study, fluid flow and transfer high-temperature wavy various shaped fins, including bare channel, channel circular, square, diamond-shaped are numeric...

This research attempts to investigate the thermal performance of solar air collectors with pin fins and turbulators. Incorporating carbon-nanotube-based turbulators in can enhance their due high conductivity, low weight, aspect ratio. In present study, numerical analyses a collector are carried out its effect on Nusselt number. The paper begins analysis conventional compares them theoretical re...

Energy-saving and heat transfer enhancement considerations are more crucial due to nearly running out energy resources ensuring the sustainability of nature. The exchangers one main components directly affect thermal efficiency systems. To enhance rate, fin plate structure is widely used. Various vortex generators may be involved generally on surface fins, like ribs, baffles, delta winglets, pe...

Schistura phamhringi, new stone loach, is described from Dutah Stream, tributary of the Yu River (Chindwin basin), near Larong Village, Chandel District, Manipur, India. It is distinguished from all its congeners by a unique combination of characters: 6-7 black saddles, each continued on both flanks forming broad diamond-shaped black bars with narrow ventral margin; bars superimposed on a grey ...

The purpose of this study was to evaluate the generation of enamel cracks and gaps at the cavosurface margin of resin composite restorations using various burs. Saucer-shaped cavities with a bevel were prepared on mid-coronal buccal or lingual surfaces of extracted human molars using a regular-grit round diamond bur, a fine-grit diamond bur, a superfine-grit diamond bur or a six-bladed tungsten...