P A College of Engineering

About: P A College of Engineering is a based out in . It is known for research contribution in the topics: Dihedral angle & Ring (chemistry). The organization has 298 authors who have published 594 publications receiving 4888 citations.

Design of energy aware collection tree protocol in Wireless Sensor Network

Abstract: In today's world, WSN (Wireless Sensor network) have gained a lot of attention due to its applications. Wireless Sensor Networks (WSNs) consist of small nodes with sensing, computation, and wireless communications capabilities. Designing a routing protocol in WSN is a very challenging task many routing, power management, and data dissemination protocols have been specifically designed for WSNs where energy awareness is an essential design issue. The focus, however, has been given to the routing protocols which might differ depending on the application and network architecture. In this paper we have discussed a routing protocol CTP (Collection Tree Protocol) which is responsible for constructing and maintaining the routing tree to send data to the root node. We have proposed an algorithm which saves energy in CTP in routing by recovering a damaged route. We have run the CTP protocol on TOSSIM Simulator in Tinyos2.1.2.

1-(3-Bromo-phen-yl)thio-urea.

Abstract: In the title compound, C7H7BrN2S, the thio­urea moiety is nearly planar (r.m.s. deviation = 0.004 A) and it forms a dihedral angle of 66.72 (15)° with the benzene ring. The C—N—C—N2 torsion angle is 15.1 (4)°. In the crystal, mol­ecules are linked via N—H⋯S and N—H⋯N hydrogen bonds into sheets lying parallel to (101).

TIVA C Series Based Handy Oscilloscope

Abstract: This paper describes about the design of low cost, portable oscilloscope which is an alternative to the typical cathode ray oscilloscopes used in the laboratories. The objective of the design is to make the oscilloscope an affordable one. This design consists of three main circuits for performing front end, sampling and triggering. The primary focus is to provide a clear waveform which aids the user to measure the time period and amplitude with high accuracy. This handy CRO has the features of hardware triggering, user control, 200 KHz bandwidth and +/- 1.5V input swing.

Methyl (2Z)-2-(2-fluoro-4-meth-oxy-benzyl-idene)-5-(4-meth-oxy-phen-yl)-7-methyl-3-oxo-2,3-dihydro-5H-[1,3]thia-zolo[3,2-a]pyrimidine-6-carboxyl-ate.

Abstract: The asymmetric unit of the title compound, C24H21FN2O5S, consists of two crystallographically independent mol­ecules. In each mol­ecule, the central dihydro­pyrimidine ring is significantly puckered and adopts a conformation which is best described as an inter­mediate between a boat and a screw boat. The least-squares planes of the dihydro­pyrimidine rings are almost coplanar with the fluoro-substituted benzene rings, making dihedral angles of 9.04 (7) and 6.68 (7)°, and almost perpendicular to the meth­oxy-substituted benzene rings with dihedral angles of 89.23 (7) and 88.30 (7)°. In the mol­ecular structure, S(6) ring motifs are formed by C—H⋯O and C—H⋯S hydrogen bonds. In the crystal, mol­ecules are linked into a three-dimensional network by inter­molecular C—H⋯O and C—H⋯F hydrogen bonds. The crystal structure is further stabilized by a C—H⋯π inter­action.