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.

Investigation of tiny jet locations effect in a sudden expansion duct for high-speed flows control using experimental and optimization methods

Abstract: The present research focuses on dynamic flow control management using tiny jets with three combinations; the first one located at 90° intervals of the base, the second one located at 0.5D (duct diameter) of the wall, and the third one located at both base and wall with a 0.05 radius respectively which injects the air. Comparative analysis with these controls and without control is considered. The wind tunnel tests were done in existence and the absence of the tiny jets. For the experiments, the duct diameter ratio considered was 1.8, the duct length L = 10D, Mach numbers 1.87, 2.2, and 2.58, and NPR's range from 3 to 11. Additionally, the experiments were repeated to design experiments (DOE) method based on the factorial design-L9 orthogonal array (OA). Three variables with two parameters were designated for flow and the DOE. An analysis of variance, response surface analysis, regression equations, response optimization and data distribution were executed to optimize the experimental results. The established prototypes are statistically appropriate and achieved in generating realistic forecasts for all instances. From the results, it is apparent that for a conferred constraint, one can find a duct length of the circular pipe, which will result in the highest growth or decline of pressure in the base region.

A proposed framework for cloud-aware multimodal multimedia big data analysis toward optimal resource allocation

Abstract: The main goal of this paper is to demonstrate the structural design of Multimodal Multimedia Services in Cloud Platform (MMSCP). Thus, our proposed MMSCP architecture is built of three levels such as, Service Platform, Execution Platform and Structural platform. The functionality of service platform is to gather different forms of video files generated by the media creators and to store these files on the local platform. The second execution platform integrates both the Hadoop and Mapreduce functionalities. Finally, QoS based cloud computing functionalities (i.e. load balancing, security, resource allocation and network traffic management) is employed at the third structural platform. Likely, we introduced the Crow Search Algorithm (CSA) in structural platform for optimal allocation of resources. We adapt a Hadoop cluster to perform the experiment. Also, to conduct the resource allocation experiment we used some of the conventional optimization algorithms such as, ABC, GA and PSO for comparison with our proposed CSA algorithm imposed on the structural platform. However, to evaluate the performance of the algorithms we configured the CloudAnalyst tool. The simulation results illustrate that the proposed algorithm can allocate the virtual machine (VM) optimally to attain a minimal response time.

(2E)-1-(2-Hy-droxy-5-methyl-phen-yl)-3-(4-meth-oxy-phen-yl)prop-2-en-1-one.

Abstract: In the title compound, C17H16O3, the dihedral angle between the aromatic rings is 459 (7)° and an intra­molecular O—H⋯O hydrogen bond generates an S(6) ring In the crystal, adjacent mol­ecules are linked by C—H⋯O hydrogen bonds, leading to the formation of [001] supra­molecular chains Weak C—H⋯π inter­actions consolidate the packing

1-[5-(4-Bromo­phen­yl)-3-(4-fluoro­phen­yl)-4,5-dihydro-1H-pyrazol-1-yl]ethanone

Abstract: In the title mol­ecule, C17H14BrFN2O, the benzene rings form dihedral angles of 6.58 (6) and 85.31 (6)° with the mean plane of the 4,5-dihydro-1H-pyrazole ring (r.m.s. deviation = 0.0231 A). The latter ring is planar with a maximum deviation of 0.032 (1) A The dihedral angle between the benzene rings is 78.75 (6)°. In the crystal, weak C—H⋯O and C—H⋯F hydrogen bonds link the mol­ecules into corrugated layers parallel to the ab plane.