Christ University

About: Christ University is a education organization based out in Bengaluru, India. It is known for research contribution in the topics: Computer science & Convection. The organization has 2267 authors who have published 2715 publications receiving 14575 citations. The organization is also known as: Christ College & Christ University.

Copper Nanoparticles: A Review on Synthesis, Characterization and Applications

Abstract: An emerging field of science “Nanotechnology” which is involved in manipulation of atoms and molecules has shown great potential in all fields of sciences. Nanotechnology deals with nanoparticles ranging from size 1 to 100 nm in diameter, due to small size and high surface area eventually increases the state of activity. This review focuses on metal and metal oxide nanoparticles and mainly on green synthesis, characterization and application of copper nanoparticles. Green synthesis of copper and copper oxide (Cu and CuO) is economically beneficial and ecofriendly. Copper nanoparticles are used in diverse fields such as biomedicine, pharmaceuticals, bioremediation, molecular biology, bioengineering, genetic engineering, dye degradation, catalysis, cosmetics and textiles. Structural properties and biological effects of copper nanoparticles have promising effectivity in field of life sciences.

An ADS-B Like Communication for UTM

Abstract: The Unmanned Aircraft System Traffic Management (UTM) is an important system for UAVs to fly into the air. The values of UAVs for different purposes and missions are varying, the adopted communication shall have multiple choice concerning cost, weight, coverage and power, with acceptable system reliability and stability to meet application requirements. The "ADS-B Like" communication systems shall be cost-effective to UAS value and affordable to all UAS users. ADS-B Like keeps all UAVs being completely monitored throughout the flying period. This paper studies four options of wireless communication as general solutions for UTM. The relay gateways of the ADS-B Like similar to base transceiver station (BTS) of 4G/LTE are established and affixed for tests. Preliminary tests are carried to inspect the availability of the APRS and LoRa in addition to 4G/LTE for UTM. Based on gateway infrastructures, the UAV surveillance data are broadcasted in a wide area using quad-rotors to check the function capability. The flight tests are in and beyond visual line-of-sight (VLOS) for UAV surveillance in coverage range, data rate, communication stability and reliability. UTM performance along with flights are verified with highly acceptable conditions under Technical Capability Level (TCL 3). This development leads favorable support to UTM performance in the near future.