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Impact of Information Technology on the Supply Chain Performance of the Car Segmentation Companies with Emphasis on the Integrity and Flexibility  [PDF]
Mahshid Mashreghi, Ebrahim Kalani, Alireza Elhami, Abas Farajpoor Alamdari, Iraj Bakhtiyari, Ehsan Kamrani
American Journal of Industrial and Business Management (AJIBM) , 2018, DOI: 10.4236/ajibm.2018.82021
Abstract: Companies are struggling in a highly competitive environment to accelerate their operations and operations. Discussions such as globalization and the expansion of networks such as the Internet are important issues that affect the resources, marketing, and other issues that companies engage with. The effects of information technology in industries, in the supply chain areas and in the value chain, are evident from the relationship with suppliers to production and communication with customers, including the impact of information technology on the supply chain performance. The purpose of this study was to investigate the relationship between information technology variables, integration and flexibility function in the automotive supply chain and the effect that information technology has on the supply chain performance. After collecting the data through a questionnaire from automobile manufacturers and analysis of the obtained model, the results show that the information technology which in this research includes the Internet, the organization’s network systems and combine system has a positive and direct effect on integration and flexibility. These results indicate that the use of information technology increases the integrity and flexibility of supply chain components and improves communication between them.
Developing a Thermodynamical Method for Prediction of Activity Coefficient of TBP Dissolved in Kerosene  [PDF]
Eskandar Keshavarz Alamdari, Sayed Khatiboleslam Sadrnezhaad
International Journal of Nonferrous Metallurgy (IJNM) , 2013, DOI: 10.4236/ijnm.2013.22009

Results of the experimental measurements on the partial molar volume of kerosene used as a medium for dissolving TBP are utilized to determine the activity of TBP in the binary kerosene-TBP solution through the application of Gibbs-Duhem equation. The treatment is based on combination of the experimental data with the thermodynamic values available on the compressibility factor of pure kerosene at room temperature. It is shown that the activity of TBP in kerosene has a positive deviation from ideality with an activity coefficient derived as follows:1) at X TBP 0.01: γ TBP = 42.530, 2) at the 0.01< X TBP < 0.2: \"\"3) at the higher TBP concentrations 0.2 < X TBP <0.97: \"\" and 4) at TBP Raoultian concentrations 0.97

Handwritten Farsi Character Recognition using Artificial Neural Network
Reza Gharoie Ahangar,Mohammad Farajpoor Ahangar
Computer Science , 2009,
Abstract: Neural Networks are being used for character recognition from last many years but most of the work was confined to English character recognition. Till date, a very little work has been reported for Handwritten Farsi Character recognition. In this paper, we have made an attempt to recognize handwritten Farsi characters by using a multilayer perceptron with one hidden layer. The error backpropagation algorithm has been used to train the MLP network. In addition, an analysis has been carried out to determine the number of hidden nodes to achieve high performance of backpropagation network in the recognition of handwritten Farsi characters. The system has been trained using several different forms of handwriting provided by both male and female participants of different age groups. Finally, this rigorous training results an automatic HCR system using MLP network. In this work, the experiments were carried out on two hundred fifty samples of five writers. The results showed that the MLP networks trained by the error backpropagation algorithm are superior in recognition accuracy and memory usage. The result indicates that the backpropagation network provides good recognition accuracy of more than 80% of handwritten Farsi characters.
Abstract: . A Cayley digraph $G=C(\Gamma,X)$ for a group $\Gamma$ and a generating set $X$ is the digraph with vertex set $V(G)=\Gamma$ and arcs $(g,gx)$ where $g\in\Gamma$ and $x\in X$. The reverse of $C(\Gamma,X)$ is the Cayley digraph $G^-1=C(\Gamma,X^-1)$ where $X^-1=\x^-1; x\in X\$. We are interested in sufficient conditions for a Cayley digraph not to be isomorphic to its reverse and focus on Cayley digraphs of metacyclic groups with small generating sets.
M. Abas
Abstract: . We prove a new upper bound on the smallest order $o(l,m,n;r)$ of a finite group that is a homomorphic image of a triangle group $\tlmn$ with injectivity radius at least $r$.
The Solve of Laplace Equation with Nonlocal and Derivative Boundary Conditions by Using Non Polynomial Spline
Abas Taherpour
American Journal of Engineering Research , 2013,
Abstract: - In this paper we consider a non polynomial spline function where it to depend on parameter τ, such that it interpolated u(x) in points of grid. By using this function we solve the Laplace equation with nonlocal and derivative boundary conditions. The method is applied in this paper is a implicit method. We know superiority of implicit methods is stability of them, because most of them are unconditionally stable.
On Record Cayley Graphs of Diameter Two
Marcel Abas
Mathematics , 2015,
Abstract: In this paper we give a construction of Cayley graphs of diameter two and of order $\frac{1}{2}d^2$ for every degree $d\geq 8$, with surprisingly simple underlying groups. We show that for degrees $d\equiv 0,3$ and $6\pmod{8}$, these graphs are largest currently known Cayley graphs of diameter two. For several small degrees we construct Cayley graphs of diameter two and of order greater than $\frac23$ of Moore bound and for degree $d=16$ we construct Cayley graph which is even the largest undirected graph of diameter two and degree 16. We show that Cayley graphs of degrees $d\in\{16,17,18,23,24,31,\dots,35\}$ constructed in this paper are the largest currently known vertex-transitive graphs of diameter two. In addition, we give a~Moore-like bound for Cayley graphs of diameter two for a~special type of underlying groups.
Cayley graphs of diameter two with order greater than 0.684 of the Moore bound for any degree
Marcel Abas
Mathematics , 2015,
Abstract: It is known that the number of vertices of a graph of diameter two can not exceed $d^2+1$. In this contribution we give a new lower bound for orders of Cayley graphs of diameter two in the form $C(d,2)\geq 0.684d^2$ valid for all degrees $d\geq 360756$. The result is a significant improvement of currently known results on the orders of Cayley graphs of diameter two.
Energy Efficient WSN-SAT System for Surveillance of Satellites  [PDF]
Hafiz Bilal Khalil, Naeem Abas, Shoaib Rauf
Wireless Sensor Network (WSN) , 2015, DOI: 10.4236/wsn.2015.710011
Abstract: Satellite communication plays a vital role in the arena of telecommunication. The main objective of this manuscript is to examine the threats and problems like space debris, space weather and space weapons that could damage or disable the satellite system. In consequence, we discuss the role of wireless sensor networks (WSN) and nodes in space based technologies. The scope of this paper is to minimize the threats and vulnerabilities to the satellite systems and based on that, design the next generation and state of the art satellite communication system. We proposed the solutions for the vulnerabilities and surveillance of satellite system by integrating the energy efficient and cost effective WSN to the satellite system.
Application of Molodensky's Method for Precise Determination of Geoid in Iran
Makan Abdollahzadeh, , Mehdi Najafi Alamdari
Journal of Geodetic Science , 2011, DOI: 10.2478/v10156-011-0004-0
Abstract: Determination of the geoid with a high accuracy is a challenging task among geodesists. Its precise determination is usually carried out by combining a global geopotential model with terrestrial gravity anomalies measured in the region of interest along with some topographic information. In this paper, Molodensky's approach is used for precise determination of height anomaly. To do this, optimum combination of global geopotential models with the validated terrestrial surface gravity anomalies and some deterministic modification schemes are investigated. Special attention is paid on the strict modelling of the geoidal height and height anomaly difference. The accuracy of the determined geoid is tested on the 513 points of Iranian height network the geoidal height of which are determined by the GPS observations.
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