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International Journal of Engineering and Advanced Research Technology

Volume 2 Issue 10 (October 2016)

S.No. Title & Authors Page No View
1

Title : Application of higher order fuzzy sets

Authors : Dr.Hakimuddin khan

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Abstract :

As far as we are aware with the theory of   fuzzy sets, and their applications in the fields of Engineering, Medical sciences, Computer science, and Management, the researchers start working on their applications to daily life problems. It is well known fact the importance of fuzzy set theory could not neglect in daily life problems. In this present paper my aim is to discuss some applications of higher fuzzy set theory in daily life problems.

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2

Title : Predicting stimuli performed using artificial neural network

Authors : Rafael do Espirito Santo

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Abstract :

This paper presents a new method of inferring mental task performed by subjects during the completion of a block designed functional magnetic resonance imaging (fMRI). The proposed method uses Principal Components Analysis (PCA) formulation and a Multilayer Perceptron (MLP) classifier. The inference is performed based on images derived from paradigms made by subjects during an fMRI experiment. Using these images, distinct activation maps are generated by XBAM software for visual, auditory, and hands movements paradigms. On individuals basis XBAM detects a multitude of brain areas in each paradigm with great variability. The most frequent are:  left precentral gyrus (in 95%  of the cases) and superior right cerebellum (87%) during the right hand movement; right precentral gyrus (88%) during the left hand movement; right (93%) and left (91%) middle temporal gyrus for the auditory paradigm; right (90%) and left (88%) lingual gyri during visual stimulus. The maps with detected areas are used to train the MLP network in classifying corresponding paradigms. The MLP is trained in a reduced-dimension feature space, obtained through PCA of original feature space. In order to demonstrate the viability of the proposed method, inferences of paradigm performed by 54 healthy subjects is presented. The paper also presents the influence of the number of Principal Components (PC) on the performance of the MLP classifier which in this work is evaluated in terms of Sensitivity and Specificity, Prediction Accuracy and the area Az under the receiver operating characteristics (ROC) curve. From the ROC analysis, values of Az up to 1 are obtained with 60 PCs in discriminating the visual paradigm from the auditory paradigm. Due to the great amount of areas detected in each stimulus on individuals terms, the proposed method can be a useful tool to analyze sets of activated regions and predicts the paradigms performed.  

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3

Title : On the notions of continuity and compactness in a fuzzy sequential topological space

Authors : N. Tamang, M. Singha, S. De Sarkar

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Abstract :

This communication offers a study of continuous functions and two kinds of compactness in fuzzy sequential topological spaces. Behaviour of the product of compact spaces and some characterizations of continuous functions are also studied.

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4

Title : Research of degradation state at the use of the vibration signal

Authors : Bogdan Zoltowski, Mariusz Zoltowski, Krzysztof Napieraj

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Abstract :

The knowledge of the dynamic state and structure of system allows to describe its behavior, and allows a creating prognosis models of the system behavior in the function of dynamic evolution time, based on the model of the technical state symptoms growth. Most often, there are no known equations describing behaviors of the system in the function of dynamic evolution time, which accounts for the need to apply new tools to examine the dynamic state. There is, therefore, the requirement to experimentally verify analytical technical models as the proper one is a model which is verified in practice. An experiment is often only an inspiration for further researches leading to the optimization of the construction. In this article authors shows chosen problems of technical state diagnosis with the use of identification and technical diagnostics methods such as experimental modal analysis. Relations between methods of dynamic state evaluation and methods of technical state evaluation were indicated. Example modal analysis results illustrate the complexity of projecting dynamic state researches into diagnostic researches of state evaluation.

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5

Title : Corrosion Resistance of LASER Welded Joints of Stainless Steels

Authors : E. Fazakas, A. Vida, T. Berecz, A.S. Alcantara, E. R. Fabian

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Abstract :

The CO2 laser weldability of the 2304, 2404 and 304 type stainless steels is investigated in this work with special regards to the corrosion properties of the joints. An improvement in corrosion properties is found what is related to the welding speed, thus the heat input regarding the samples. Based on the results the laser welding seems to be more suitable for industrial applications in the case of duplex stainless steels. 

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6

Title : Capacitive dividers on the high voltage lines

Authors : Haroun Abba Labane, Alphonse Omboua

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Abstract :

In the developing countries, several villages are crossed by lines with high voltage yet the populations do not profit from the electricity which passes above their heads. The classical solution for the transformation of the very high voltage into low voltage for the profit of the rural populations is expensive and is not economically profitable for the distributors of electrical energy. The voltage dividers already used like transformers in the stations, can be resized for the extraction of small quantities along high voltage lines. This single-phase technique, would plaid in favor of the reasonable costs. On the work of transporting, the high voltage line would assume the role of distributor of electrical energy to the rural populations. This article is dedicated to the detailed research of the system, for the control of the parameters of the choice equipment, for an easy dimensioning in rural electrification.

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7

Title : Study Optical and Electrical Properties of Cd1-x ZnxS Thin Films prepared by Spray Pyrolysis Technique

Authors : Nahida B. Hasan, Rusul A.Ghazi

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Abstract :

Nano particles of mixed Cd1-xZnx S thin films were prepared by spray pyrolysis technique at a substrate temperature of 360oC. The films deposited were 160 nm thickness. Optical and electrical measurements such as, absorbance, absorption coefficient, optical energy gap, refractive index, Hall effect and D.C conductivity for all films we are measured. The results showed that absorbance of prepared films decreases with increasing of ZnS Vol % this lead to increase the energy gap. Conductivity decreased with increasing of ZnS Vol.%, as well as the results showed throughout the study that all films have tow activation energy ,its value increase with increasing of Vol.% of (x).Hall effect measurement showed all films has p-type Conductivity.

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8

Title : Design and Analysis of Composite Leaf Spring

Authors : R. Rama Gangi Reddy, M.Karthick kumar, M.Manikanta Reddy, K.Kondiah, K.Prasad

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Abstract :

A leaf spring is a simple form spring commonly used for suspension in wheel vehicles.  The automobile industry has shown keen interest for replacement of steel leaf spring with that of composite leaf spring. Since the composite material has high strength to weight ratio, good corrosion resistance and other thermal properties. The steel material is replaced with the composite material. A spring with constant width and thickness was fabricated by hand lay – up technique which was very simple and economical. The numerical analysis is carried via finite element analysis using ANSYS software. Stress, deflection and strain energy results for both steel and composite leaf spring material were obtained. The design and FEA analysis is of composite leaf spring made of glass fiber reinforced polymer. The dimensions of an existing conventional steel leaf spring of a light commercial vehicle are taken for evaluation of results.

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9

Title : Design and Analysis of Microstrip Bandpass Filter for High Frequency Applications

Authors : Kumkum Kumari, Deepika Yadav, Twinkle Raghav, Kratika Saraswat

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Abstract :

Bandpass filters play a significant role in wireless communication systems. Transmitted and received signals have to be filtered at a certain center frequency with a specific bandwidth. In designing of microstrip filters, the first step is to carry out an approximated calculation based on using of concentrated components like inductors and capacitors. After getting the specifications required, we realized the filter structure with the Insertion loss technique or Image parameter technique. Experimental verification gives comparison, how close the theoretical results and measurements look like.

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10

Title : Investigation of Structure and Optical Properties of Barium Oxide (BaO) Thin Films Deposited by (CSP) Technique

Authors : Abdulazeez O. Mousa, Hasan H. Hasan

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Abstract :

Barium Oxide BaO thin films were investigation by precipitating barium chloride and analyzed structurally and optically. Samples were prepared at different thickness (75, 103, 109, and 112) nm, and glass substrate temperature kept at (450 oC) in all cases. Compressed Nitrogen was used as a carrier gas. The samples of the BaO films were characterized by X-ray diffraction (XRD), and atomic force microscopy (AFM). The XRD results indicated that the synthesized BaO thin films have a pure cubic structure. It can be seen that the highest texture coefficient was in (111) plan for thin films. AFM measurement showed the grain size ranging from (92.2-125.18) nm. The optical band gap energy (Eg) of BaO thin films from (2.4 – 2.6) eV and the (Eg) decrease with increasing thickness utilizing the optical data using UV-Vis spectrophotometer.

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