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.

N'-(2,6-Difluoro-benzyl-idene)pyridine-4-carbohydrazide.

Abstract: In the title compound, C(13)H(9)F(2)N(3)O, the pyridine ring forms a dihedral angle of 16.92 (7)° with the benzene ring. In the crystal, mol-ecules are linked via N-H⋯O, C-H⋯O and C-H⋯F, with the same O atom accepting two bonds.

(2E)-3-(2-Fluoro-phen-yl)-1-(4-fluoro-phen-yl)prop-2-en-1-one.

Abstract: In the title compouund, C15H10F2O, the mol­ecule exists in an E conformation with respect to the C=C bond [1.3382 (16) A]. The dihedral angle between the fluoro-substituted benzene rings is 6.80 (6)° and the whole mol­ecule is roughly planar (r.m.s. deviation for the non-H atoms = 0.069 A). In the crystal, mol­ecules are linked by C—H⋯F and C—H⋯O inter­actions into sheets lying parallel to the bc plane.

Finite Element Simulation of Knuckle and Strut Arm Column Assembly for Automotive Steering System

Abstract: Steering knuckle is one of the important parts in the vehicle steering system. Under certain operating conditions, the knuckles reliability threatens the safety of people and vehicles directly. At emergency braking condition, mostly strut arm and steering arm have maximum deflection in steering knuckle when it is subjected to various load cases. In this work, finite element analysis of the spheroid graphite (SG) iron strut arm of steering knuckle with strut mount assembly was carried out to predict its deflection under static load. The analysis result was compared with that of the experimental results to put forward directions to optimize the shape and material selection.

A novel chaotic color image encryption / decryption based on triangular confusion

Abstract: In this paper image encryption algorithm based on confusion and diffusion using dynamic key space is proposed. Confusion of pixels is done by triangular confusion, method proposed in this work and diffusion is done by values obtained from logistic map iterations. An internal key generator is used to generate the initial seeds for the overall encryption scheme proposed, with these initial seeds, logistic map generates pseudo random numbers which are then converted into Confusion order (CO) for confusion. Confusion order is applied to the blocks which have undergone triangular confusion. The diffusion bits (DFB) are generated in parallel using the logistic map and manipulated with pixels confused according to confusion order. The image pixels are iteratively confused and diffused with CO and DFB respectively to produce cipher image in minimum number of rounds. This work focuses on key generation using logistic and tent maps with iterative reconstruction to secure the image. Chaos based method provides a dynamic changes for confusion and diffusion architecture in the image encryption. A single bit change in the key will dramatically change the result in the internal key generation structure proposed. The simulation results confirm that the satisfactory level security is achieved in three rounds and the overall encryption time is saved.

2,3-Dibromo-3-(4-bromo-6-methoxy-2-naphthyl)-1-(4-methoxyphenyl)propan-1-one

Abstract: In the title compound, C21H17Br3O3, the two aromatic residues are almost coplanar with one another dihedral angle = 9.92 ( 6)degrees]. The two Br atoms at the Csp(3) atoms are in a trans conformation.