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Volume 2 Issue 10 (October)

S.No. Title & Authors Page No View
1

Title : On CR-Structure And F-Structure Satisfying

Authors : Lakhan Singh, Shailendra Kumar Gautam

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In this paper, we have studied a relationship between CR-structure and F-structure satisfying  + F=0, where p1 and p2 are twin primes. Nijenhuis tensor and integrability conditions have also been discussed.

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2

Title : Advances in High Performance Polymer Nano Composite Coatings for Better Resistance to Corrosion and Ultraviolet Rays

Authors : Shambhu Sharan Kumar

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In this industrial extensive research work in the fields of corrosion protection and surface coatings, conventional micron sized rutile TiO2 pigment based automobile grade polyester-amino (butylated melamine formaldehyde resin-BMF) stoving paint was formulated. In subsequent approach, nano TiO2 and nano ZnO alongwith nano SiO2 particles modified super white stoving industrial paints were formulated for the purpose of comparative study and to improve overall performances of surface coatings with respect to the best possible protection of automobile grade steel surfaces. With reference to the improvement of erosion and corrosion resistance, weathering and ultraviolet (UV-rays) resistance, water repellence and chemical resistance, dispersion stability and aging resistance, surface covering and adhesion property, film smoothness and gloss retention alongwith other mechanical properties; nano materials adapted paints have shown great potential in several industrial applications. The nano pigment particles were characterized by SEM and XRD. Performance evaluation of surface coatings was done as per ASTM/BIS test procedures. After rigorous test observations, excellent performance results have been found i.e. 100% adhesion, 100% gloss, appreciable results in aging test, 4000 hours passed in salt spray test and 3600 hours passed in quick ultraviolet weathering resistance test due to surprising synergistic effects of dispersed different  nano materials in crosslinked polyester-amino resins  media. It has experimentally been proven that the proper application and dispersion of suitable nano materials in paint formulations, improved overall performances of surface coatings for the purpose of better surface-protection.

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3

Title : Effect of Nanofluid on Cooling System of Engine

Authors : Laxman P. Dhale, Pravin B. Wadhave, Dnyaneshwar V. Kanade, Y.S.Sable

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An automobile radiator is used for the cooling purpose of the engine. The cooling system of an engine plays an important role in its performance for these reason researchers are using different types of Nano fluids as coolant which increases the effectiveness of radiator, increases the performance of an engine and decline the fuel consumption. In this study 1.2% volume concentration of Al2O3 nano particles water based nano fluid is used and observes that effectiveness of an automobile radiator enhance up to 23% at constant mass flow rate.

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4

Title : Recent development and challenges in processing of ceramics reinforced Al matrix composite through stir casting process: A Review

Authors : V. P. Baisane, Y.S. Sable, M. M. Dhobe, P.M. Sonawane

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Use of Composites are increasing day by day because they offers advantages such as low weight, corrosion resistance, high fatigue strength, faster assembly, etc. MMCs posses significantly improved properties including high specific strength, specific modulus, damping capacity and good wear resistance compared to the unreinforced alloys. It is durable and highly efficient for automobile or aircraft. It exhibits higher competence for machining complex shapes with greater accuracy. Homogenous Continuous reinforcements can result in dramatic improvements in MMCs properties, consist of lightweight metal alloys, but cost remains high. Cost reduction can be achieved by cheaper reinforcements, simpler fabrication methods. It is possible to tailor their properties as per the requirement of various industrial applications by suitable combinations of matrix, reinforcement and fabrication method. This paper presents an up-to-date review of progress and benefits of different routes for fabrication and machining of composites.  The purpose of this review to provide a reliable scientific basis for the researchers planning to synthesize particulate reinforcement, Wettability, porosity MMC in the stir casting. 

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5

Title : Event-Triggered Control and H∞ Control Co-Design for Platoon Control Systems with Parameter Uncertainties and External Disturbances

Authors : Siyuan Shao, Panlong Wu, Yuming Bo

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In this paper, an event-triggered control problem in array-like autonomous platoon control system with network-induced delay, parameter uncertainties and external disturbances is investigated. Firstly, a novel six-order linear kinematic model of each autonomous vehicle and a novel state error model of array-like autonomous platoon control system are constructed. Secondly, the corresponding delay system is modelled. Then, by employing the constructed model and Lyapunov functional approach, a co-design method of both the H controller and the parameters of event-triggering condition for each following vehicle is proposed. The feedback gain matrix and the event-triggering matrix corresponding to each autonomous vehicle can be obtained by employing LMI technique. Finally, a simulation example is presented to demonstrate the effectiveness of the proposed co-design method.

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6

Title : Stabilization of Uncertain Non-Bilinear Descriptor Dynamical System Via Logarithmic Norm Approach

Authors : Radhi Ali Zaboon, Ghazwa Faisal Abd

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In this paper a feedback controller stabilization of non-bilinear descriptor system have been developed via logarithmic norm approach. The sufficient conditions on parametric uncertainty where the system is regular or impulse free have been given. Some theoretical results supported have been adopted with suitable illustrations example for designing a stabilizing controller for non-bilinear uncertain descriptor systems based on the theoretical result have also been developed.   

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7

Title : Modelling and Analysis of Fractional Capacitors

Authors : Madhab Chandra Tripathy, Sribatsa Behera

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The aim of the paper is to explore both theoretically and experimentally the modelling of different in-house developed PMMA coated fractional capacitors [5]. The design realization and behaviour of Polymethyl methacrylate (PMMA) coated probe has been studied in different polarizable medium like Ph 9.2, Ph 4.0, tape water and distilled water. Different frequency responses are obtained and a corresponding mathematical model has been proposed from experimental data. The parameters of modelled data have been found using least square estimation technique.

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8

Title : Development of a Software Application for Solving of Problems of Chemical Kinetics and its Implementation in a C #

Authors : M.R.Manafov

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In this paper the authors described the software package for solution of wide range of  tasks of the chemical and petrochemical industry. The existing programs are analyzed and their advantages and shortcomings are specified. The shortcomings of these works has been taken into account at creation of the software package. Along with numerical methods for the solution of various tasks  (calculation of integral, numerical methods for solving equations etc.),  class for the solution of  direct  and the inverse problem of kinetics, calculation and a choice of the equipment from the Access database  has been defined . The generated package can be used by schoolchildren, students, engineers and scientists.

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9

Title : The Effect of Sodium Chloride Treatment on Compression Strength of Silver Fir Wood

Authors : Arian Kapidani

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Among properties which characterize the application of silver fir wood (Abies alba Mill.) in buildings is its compression strength parallel to the grain. In the framework of improvement of this mechanical property, a comparative experimental investigation was performed with sodium chloride (NaCl) treated and non treated silver fir wood with regard to maximum crushing strength and modulus of elasticity, based on mechanical tests performed according to norm ISO 3787. From 68 samples with dimensions 20x20x40 mm, 34 of them were full covered with solid NaCl for a period of 60 days. The samples were sawn from boards produced from fir logs of the area of Librazhdi, in central Albania. After weight percent gain was calculated, the treated and non treated samples were conditioned and tested by means of mechanical testing machine, in the Faculty of Forestry Sciences of Tirana. The weight percent gain of treated wood resulted 9.56%. The maximum crushing strength of non treated fir resulted 43 N/mm2, while for treated wood 32.56% higher. With regard to modulus of elasticity treated wood presented a value equal to 14621 N/mm2, 19.36% higher than non treated wood. Measured values of the crushing strength and modulus of elasticity in compression parallel to the grain of non treated wood were compared with respective values of fir wood from the literature. No significant variations were noted.

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10

Title : The Study of Antimicrobial, Anthelmintic and Cytotoxic activities of Parthenium Hysterophorus L.

Authors : Nitin Sharma, Mahesh Kumar, Usha Tiwari, Manoj Kalakoti

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The present study has been designed to evaluate antimicrobial, anthelmintic and cytotoxic activities of Parthenium hysterophorus L. plant leaves extract. Present work reports for the antimicrobial activities of P. hysterophorus leaf. Dried samples were sequentially extracted with many solvents. Methanol, acetone, chloroform, petroleum ether and water extracts of leaf showed considerable antibacterial activity against Escherichia coli, Klebsiella pneumonia and also antifungal activity against Candida albicans. The in-vitro cytotoxic activity of methanolic extract was performed by MTT assay method against HeLa cell line. The methanolic, acetone, chloroform, petroleum ether, water extract (100 mg/ml concentration) of Parthenium hysterophorus plant leaves was taken for anthelmintic activity against Pheretima posthuma. Effect of inhibition of cell growth showed significant cytotoxicity against leaf methanolic extracts showed considerable inhibition (80–90%) of HeLa cell lines. The results obtained from the study indicate good anthelmintic activity against Pheretima posthuma. The present study concluded that the methanolic extract of Parthenium hysterophorus possess potent antimicrobial, anticancer and also anthelmintic activities. 

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11

Title : The relation of leadership style and emotional intelligence and job satisfaction of lifeguard staff of the country

Authors : Lida Aftab

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Administration and management of sports organization should completely get ready to adapt itself with the world of professional sports today. The goal of this paper is studying the relation of leadership style and emotional intelligence and job satisfaction of lifeguard staff of the country. Research methodology of this paper was correlation. Statistical society of this paper was the whole lifeguard staff of country which their number were 120 and they have chosen randomly. For collecting information from three questionnaire leadership style, emotional intelligence and job satisfaction has been used. The results of the research had shown that there is a positive relation between job satisfaction and emotional intelligence with leadership style (=001/0p). It can be said that a successful leadership style is an effective factor in job satisfaction of lifeguard staff of the country and high emotional intelligence can make an effective leadership style in lifeguard staff that can improve job satisfaction by using this kind of leadership style.

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12

Title : The impact of organizations social responsibility, quality of services and joint identity of organization and customer on satisfaction and loyalty of customers

Authors : Shima Eftekhari

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Nowadays inattention of organizations to rights and nonconformity of ethics fundamental encountering external stakeholders, can make some problems for organization and question organisation’s legitimation and proceeding and affect profit and success of organization. Poor work ethic can affect on people attitude towark work, organization and managers and can affect individual, organizational or group performance. Whwnever this problem affect oarganization performance can affect customers attitude toward organization too. Social responsibility impact on satisfaction of staffs is studying in this paper, because customers are the most important factor of a companie’s benefit. Therefore, a research model is prepared that nine hypothesis is prepared based on it. A questionare is prepared for proving hypothesis and they have distributed among 384 customers of Pasargad Bank. Inputs processed by SPSS and LIZREL sofwares. At the end just a hypothesis rejected and the rest prooved. It is specified that social responsibilities of bank, service quality and joint indentity of organization and customer are effective on customer’s satisfaction and loyalty.

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13

Title : A note on graphs with two kinds of zero forcing number

Authors : Li Lei, Guang Zeng, Xin Luo

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Zero forcing number and positive semidefinite zero forcing number are important parameters in studying minimum rank problems. Several graphs are proposed, which have the same zero forcing number and positive semidefinite zero forcing number in this paper.

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14

Title : Interfacial Damage of Fiber/Matrix Composite under Mechanical and Physical Loading

Authors : Varbinka Valeva, Jordanka Ivanova, Ana Yanakieva

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In this paper on the base of representative volume element (RVE) the modified shear lag model was used to investigate the stress state, stress transfer and interface fracture energy of nanofiber/matrix composite. The RVE is subjected to static mechanical and physical load, e.g. temperature and moisture excitation. The solution of the problem is considered for the cases of perfect bond of the interface, perfect bond  and break of the fiber, perfect bond and partially interface debonding and break of the fiber as well. The obtained in closed analytical form results for axial stress and shear interfacial stress as well as the debond length are illustrated in figures. As a numerical example, the carbon nanofiber (CNF)/epoxy composite is considered. Three cases are studied: elastic with static mechanical loading, elastic with static mechanical loading and temperature and elastic with static mechanical loading with temperature and moisture. All three cases are compared in respective figures. The presence of the initial partial debond leads to smaller values of the respective fiber axial and interface shear stresses as well as to the magnitude of the plateau of the axial fiber stress. As a consequence, the progressive interfacial debonding is considered as well. The influence of the temperature excitation (20o–30oC) at given characteristics of the chosen CNF composite on the interface debond length is negligible, while the influence of moisture is significant especially for the case of progressive interface debonding. It is shown that the influence of the moisture on CNF is bigger at smaller volume fraction. At smaller aspect ratio (AR) the values of the stress transfer function (STF) are smaller when the influence of the moisture is taken into account and further it increases with the increasing of the mechanical load. The influence of the temperature and moisture on the debonding length is also estimated and some conclusions and recommendations are done.

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15

Title : The Numerical Solution of Fractional Differential-Algebraic Equations (FDAEs) by Haar Wavelet Functions

Authors :

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In this paper, the numerical solution of Fractional Differential-Algebraic Equations (FDAEs) is considered by Haar wavelet functions. We derive the Haar wavelet operational matrix of the fractional order integration and by using it to solve the Fractional Differential-Algebraic Equations. The results obtained are in good-agreement with the exact solutions. It is shown that the technique used here is effective and easy to apply.

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