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International Journal of Advances in Applied Sciences

IJAAS
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Published by Institute of Advanced Engineering and Science

ISSN : 22528814 EISSN : 27222594 DOI : http://doi.org/10.11591/ijaas

Core Subject : Science, Education, Social,

Earth & Planetary Sciences Environmental Science Materials Science & Nanotechnology Mathematics Physics

International Journal of Advances in Applied Sciences (IJAAS) is a peer-reviewed and open access journal dedicated to publish significant research findings in the field of applied and theoretical sciences. The journal is designed to serve researchers, developers, professionals, graduate students and others interested in state-of-the art research activities in applied science areas, which cover topics including: chemistry, physics, materials, nanoscience and nanotechnology, mathematics, statistics, geology and earth sciences.

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Articles 477 Documents

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To study the Erosion Behavior of H.V.O.F. Coating of 16Cr5Ni at the Different Velocity of Slurry Umakant Yadav; Naresh Kumar; Mukesh Kumar Rathi
International Journal of Advances in Applied Sciences Vol 3, No 2: June 2014
Publisher : Institute of Advanced Engineering and Science

This paper describes erosion characteristics of high velocity oxy fuel (H.V.O.F.) along with commonly used steels 16Cr5Ni in Turbine and studied the comparison the effect of erosion at Different Velocities of the slurry on Cr2O3 and CrC-NiCr coating on steel. The four different ranges of velocity is taken i.e. 35m/s, 50m/s ,60and 70m/s. at normal impact angle and comparison regarding the erosion resistance was determined from the mass loss results. Higher erosion takes place at medium range of velocity i.e. at 50 m/s. Based on this experimental study coating was considered acceptable for the processes employed

Design of Wireless Acceleration Sensor Nodes Used in Mechanical Equipment Status Monitoring G. Vamshi Kishore; J. Suresh
International Journal of Advances in Applied Sciences Vol 6, No 1: March 2017
Publisher : Institute of Advanced Engineering and Science

Wireless Sensor Network is a new integrated technology, which combines sensor technology, wireless communication technology, Micro-Electro-Mechanical Systems technology and Digital electronic technology. Now, it has been widely used in military, industrial control, environmental monitoring, transportation, and medical. Along with the research evolution on Wireless Sensor Network, its application fields are gradually expanding. It is penetrating deep into each aspect of the human’s production and life, and will be a new revolutionary technology. In this paper, a wireless acceleration node based on wireless single chip processor CC2430, an ARM7TDMI-S core based microcontroller called LPC2478 microprocessor and three-axis acceleration sensor ADXL330 is designed to monitor the mechanical system operation conditions and fault diagnosis with high efficiency. The performance and characteristics of CC2430, ADXL330 and LPC2478 are introduced compactly. The designations of hardware as well as software of wireless network node are introduced in details. The nodes perform steadily and efficiently in practical test, and it can be easily applied to other monitoring areas.

TM-Polarization One-Dimensional Photonic Crystal Design Elham Jasim Mohammad; Gaillan H. Abdullah
International Journal of Advances in Applied Sciences Vol 2, No 3: September 2013
Publisher : Institute of Advanced Engineering and Science

A theoretical investigation of one dimensional planar photonic crystal is carried out. These photonic crystal consist of a dielectric layer structures with refractive index n1=1.45 and n2= 3.45. This work presents a systematic investigation of the reflection, forbidden bands and density of state of p-polarization. In optical sciences, the refractive index of an optical medium is a most fundamental quantity. The refractive index determines the refraction and reflection occurring at the boundary between two media. The propagation angle in one medium is taken with respect to normal inside the first medium varies between 0 and π/2. The program is written in MATLAB to simulate and analysis dispersions of electric magnetic waves in one dimension photonic crystal.

Influences of Hybrid Cooling Mechanism through PV System under Solar Simulator Testing Y.M. Irwan; A.R. Amelia; M. Irwanto; W.Z. Leow; Z. Syafiqah; I. Safwati
International Journal of Advances in Applied Sciences Vol 6, No 3: September 2017
Publisher : Institute of Advanced Engineering and Science

An increasing efficiency of the solar system can be improved by using hybrid cooling mechanism. This paper presents the impact of hybrid cooling mechanism on PV panel under indoor testing with varying solar intensity. Thus, the fabrication of a solar simulator for indoor testing reacts as the space solar radiation is described. The performance of PV panel which attached to a hybrid cooling mechanism compared with PV panel without cooling mechanism under variation of average solar radiation. Experimental tests were carried out for various average solar radiations by varying the number of lamps and/or the lamp-to-area distance. Without altering the spectral distribution, the characteristic of current-voltage of PV panel was analysed under average solar radiation which varied from 202 W/m2 to 1003 W/m2. As the result, the PV panel with hybrid cooling system explored to generate more power output with decreasing in PV panel temperature. About 15.79 % increment of power output generated by PV panel with cooling at maximum average solar radiation. Furthermore, the PV panel temperature also can be decreased about 10.28 % respectively. The combination of DC fan and water pump as cooling mechanism plays an important role in generating efficient power output from PV panel.

Microfacies and Sedimentary Environments of the Fahliyan Formation in the Folded Zagros Zone, SW Iran Mahnaz Parvaneh Nejad Shirazi; Mohammad Bahrami; Fatemeh Dashtaby; Mohammad Sahraeyan
International Journal of Advances in Applied Sciences Vol 2, No 1: March 2013
Publisher : Institute of Advanced Engineering and Science

The Fahliyan Formation (Lower Cretaceous) is composed of carbonate rocks and is composed of carbonate reservoir rocks in the Zagros Basin. The Zagros are located on the boundary between the Arabian and Eurasian lithosphere plates and are the orogenic response to a collision between Eurasia and advancing Arabia during the Cenozoic. The study area is located at the northwestern part of Kuh- E- Gadvan, ~45 km northeast of Shiraz in the Folded Zagros Zone. Fahliyan Formation at Kuh- E- Gadvan, with a thickness of 325 meters consisted of thin to thick bedded limestone. The careful examination of thin sections led to the recognition of nine microfacies which was performed on the basis of skeletal and non- skeletal grains and matrix. Microscopic and macroscopic evidences show that Fahliyan Formation facies can be divided into four facies belts, on the basis of depositional features, specific of carbonate platforms of rimmed shelf type. These belts include tidal flat, lagoon, barrier and open marine environments. The Fahliyan Formation (Lower Cretaceous) is composed of carbonate rocks and is composed of carbonate reservoir rocks in the Zagros Basin. The Zagros are located on the boundary between the Arabian and Eurasian lithosphere plates and are the orogenic response to a collision between Eurasia and advancing Arabia during the Cenozoic. The study area is located at the northwestern part of Kuh- E- Gadvan, ~45 km northeast of Shiraz in the Folded Zagros Zone. Fahliyan Formation at Kuh- E- Gadvan, with a thickness of 325 meters consisted of thin to thick bedded limestone. The careful examination of thin sections led to the recognition of nine microfacies which was performed on the basis of skeletal and non- skeletal grains and matrix. Microscopic and macroscopic evidences show that Fahliyan Formation facies can be divided into four facies belts, on the basis of depositional features, specific of carbonate platforms of rimmed shelf type. These belts include tidal flat, lagoon, barrier and open marine environments.

Advances in Application of Fuzzy sets in electrical engineering Aditya Jain; Balakrushna Tripathy
International Journal of Advances in Applied Sciences Vol 6, No 4: December 2017
Publisher : Institute of Advanced Engineering and Science

Initially a theory, today fuzzy logic has become an operational technique. Used alongside other advanced control techniques, it is making a discrete but appreciated appearance in various electric systems. In the majority of present-day applications, fuzzy logic allows many kinds of designer and operator qualitative knowledge in electrical automation to be taken into account. Fuzzy logic began to interest the media at the beginning of the nineties. The numerous applications in electrical and electronic household appliances, particularly in Japan, were mainly responsible for such interest. Washing machines not requiring adjustment, camcorders with Steadyshot (TM) image stabilization and many other innovations brought the term “fuzzy logic” to the attention of a wide public.

Baseline Tuning Methodology Supervisory Sliding Mode Methodology: Applied to IC Engine Farzin Piltan; Mozhdeh Piran; Mehdi Akbari; Mansour Barzegar
International Journal of Advances in Applied Sciences Vol 1, No 3: September 2012
Publisher : Institute of Advanced Engineering and Science

Internal combustion (IC) engines are optimized to meet exhaust emission requirements with the best fuel economy. Closed loop combustion control is a key technology that is used to optimize the engine combustion process to achieve this goal. In order to conduct research in the area of closed loop combustion control, a control oriented cycle-to-cycle engine model, containing engine combustion information for each individual engine cycle as a function of engine crank angle, is a necessity. This research aims to design a new methodology to fix the fuel ratio in internal combustion (IC) engine. Baseline method is a linear methodology which can be used for highly nonlinear system’s (e.g., IC engine). To optimize this method, new linear part sliding mode method (NLPSM) is used. This online optimizer can adjust the optimal coefficient to have the best performance.

A Fusion Based Visibility Enhancement of Single Underwater Hazy Image Samarth Borkar; Sanjiv V. Bonde
International Journal of Advances in Applied Sciences Vol 7, No 1: March 2018
Publisher : Institute of Advanced Engineering and Science

Underwater images are prone to contrast loss, limited visibility, and undesirable color cast. For underwater computer vision and pattern recognition algorithms, these images need to be pre-processed. We have addressed a novel solution to this problem by proposing fully automated underwater image dehazing using multimodal DWT fusion. Inputs for the combinational image fusion scheme are derived from Singular Value Decomposition (SVD) and Discrete Wavelet Transform (DWT) for contrast enhancement in HSV color space and color constancy using Shades of Gray algorithm respectively. To appraise the work conducted, the visual and quantitative analysis is performed. The restored images demonstrate improved contrast and effective enhancement in overall image quality and visibility. The proposed algorithm performs on par with the recent underwater dehazing techniques.

Odd generalized exponential log logistic distribution: A new acceptance sampling plans based on percentiles Srinivasa Rao Gadde; K. Rosaiah; D. C. U. Sivakumar; K. Kalyani
International Journal of Advances in Applied Sciences Vol 8, No 3: September 2019
Publisher : Institute of Advanced Engineering and Science

In this paper, acceptance sampling plans are developed for the odd generalized exponential log logistic distribution based on percentiles when the life test is truncated at a pre-specified (pre-determined) time. The minimum sample size necessary to ensure the specified life percentile is obtained under a given consumer’s risk. The operating characteristic values of the sampling plans as well as the producer’s risk are presented. One example with real data set is also given as an illustration.

Methods of Assess the Impact of Technological Variables Complex Spatial-Distributed Systems on Costs Korneev A.M.; Shmyrin A.M.; Lavrukhina T.V.; Abdullakh L.S.
International Journal of Advances in Applied Sciences Vol 5, No 1: March 2016
Publisher : Institute of Advanced Engineering and Science

The paper considers the method of calculating costs, taking into account the effect of technological parameters; the model of forecasting of costs of production resources based on the matrix of costs are described; the methods of assess the impact of parameters of complex spatial-distributed systems on costs are presented.

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