Nasir Ahmad Khan

Design of an Oscillating Coil Pendulum Energy Generating System

Abstract The purpose of this paper is to study the theocratical work for a new type of wind power system. This wind system, called Wing oscillating coil rod pendulum system. This is a small prototype that generates low current and voltage. This system is a new type of wind turbine, to generate energy by using wind. One of the main elements of this system is a copper coil pendulum with flapping wing attached to it which oscillates at a low frequency when wind strikes it. The wind blowing kinetic energy compels the pendulum to oscillate, so the kinetic energy of wind is converted into oscillating energy of pendulum. The oscillating energy is then converted into electrical energy by using a semicircle shaped permanent magnet, which is placed under the coil rod pendulum. Theocratical construction and electrical design of wing oscillating coil rod pendulum system is discussed in this paper.

Characterizations of intra-regular Abel-Grassmann's groupoids

We characterize intra-regular Abel-Grassmanns groupoids by the properties of their ideals and

Towards thermally stable cyclophanediene-dihydropyrene photoswitches

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IDENTIFICATION OF RESISTANCE SOURCE IN POTATO GERMPLASM AGAINST PVX AND PVY

-fuzzy ideals of various types.

IMPACT OF SAWDUST USING VARIOUS WOODS FOR EFFECTIVE CULTIVATION OF OYSTER MUSHROOM

Cyclophanediene dihydropyrenes (CPD-DHP) are photochromic compounds because they change their color by irradiation with lights of different color. Potential use of CPD-DHP photoswitch in memory devices requires a very slow thermal return in the dark in the absence of any side reaction. Herein, thermal return of CPDs to DHPs, and an unwanted sigmatropic shift in DHP is studied through density functional theory calculations at (U)B3LYP/6-31+G(d). The thermal return occurs through symmetry forbidden conrotatory electrocyclic reaction. Dimethyl amino CPD-DHP photoswitch pair has the highest activation barrier for electrocyclization and sigmatropic shifts. The lowest activation barrier for symmetry forbidden electrocyclization is observed for GeBr3 functionalized CPD. An unprecedented decomposition pathway involving elimination of the internal substituents is predicted for Cl, Br and SMe functionalized DHPs. This study shows great promise in understanding the Woodward Hoffmann forbidden processes and, in reducing the synthetic efforts toward robust photochromes for memory applications.