Islamic Azad University at Andimeshk

iauandimeshk.ac.ir
Khuzestan, Iran

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Moradivalikboni R.,Academy of Sciences of Tajikistan | Hozhiboevy Y.,Academy of Sciences of Tajikistan | Heidarnezhad Z.,Islamic Azad University at Andimeshk
Oriental Journal of Chemistry | Year: 2013

The synthesis of 2-R 5-oxo 5-H 6 -carbohydrazin 7-phenyl 1,3,4-thiadiazolo-[3,2-a] pyrimidine is described. This compound exhibits a broad spectrum of antimicrobial action and can be useful in the search for new antimicrobial drugs.Reactions of 2- R 5 - Oxo 5-H 6- EthylCarboxilate 7-phenyl -1, 3,4 - Thiadiazolo-[3,2-a] pyrimidine with hydrazine produce 2-R 5-oxo 5-H 6 -carbohydrazin 7-phenyl 1,3,4-thiadiazolo-[3,2-a] pyrimidine. The structures of the compounds obtained are set NMR, 13C, IR- spectroscopy.


Derikvand M.,Islamic Azad University at Andimeshk | Pangh H.,University of Tehran
BioResources | Year: 2016

An experimental method was developed in this investigation to evaluate the shear strength of adhesive bonds in solid wood materials. The new method was tested against the standard test methods described in ASTM D-905, EN 205, and EN 302-1. Specimens were constructed of Oriental Beech (Fagus orientalis L.) and bonded with three different wood adhesives. Using the proposed method in the study, unintentional errors in cutting and testing processes of the shear specimens were decreased, which led to a decrease in the variability of the results. The worst stability was observed in the data obtained when the EN 205 and ASTM D-905 standard methods were used.


Mehdi H.,Islamic Azad University at Andimeshk
ICINA 2010 - 2010 International Conference on Information, Networking and Automation, Proceedings | Year: 2010

In wireless ad hoc networks, when the mobile nodes move with diverse patterns and cause the network to separate into completely disconnected portions, network partitioning occurs. Network partitioning is a wide scale Topology change that can cause sudden and severe disruptions to ongoing network routing and upper layer applications. Its occurrence can be attributed to the aggregate group motion exhibited in the movements of the mobile nodes. By exploiting the group mobility pattern, we can predict the future network partitioning, and thus minimize the amount of disruptions. In this paper, we propose a new characterization of group mobility based on existing group mobility models, which provides parameters that are sufficient for network partition prediction. We then demonstrate how partition prediction can be made using the mobility model parameters, and illustrate the applicability of the prediction information. Furthermore, we use a simple but effective data clustering algorithm that, given the Angles of the mobile nodes in an ad hoc network, it can accurately determine the mobility groups and estimate the characteristic parameters of each group. © 2010 IEEE.


Mehdi H.,Islamic Azad University at Andimeshk
ICINA 2010 - 2010 International Conference on Information, Networking and Automation, Proceedings | Year: 2010

Wireless networks allow a more flexible communication model than traditional networks since the user is not limited to a fixed physical location. Unlike cellular wireless networks, ad hoc wireless networks do not have any fixed communication infrastructure. In ad hoc networks, routes are mostly multi hop and network hosts communicate via packet radios. Each host moves in an arbitrary manner and thus routes are subject to frequent disconnections. In typical mobile networks, nodes exhibit some degree of regularity in the mobility pattern. By exploiting a mobile user's non-random traveling pattern, we can predict the future state of network topology and thus provide a transparent Network access during the period of topology changes. In this paper we present various enhancements to Unicast and multicast routing protocols using mobility prediction. The proposed scheme utilizes GPS location information. By simulation, we evaluate the effectiveness of mobility prediction. © 2010 IEEE.


Isvandzibaei M.R.,Islamic Azad University at Andimeshk
International Review on Modelling and Simulations | Year: 2011

The effects of the FGM configuration are studied by studying the frequencies of two FGM cylindrical shells. Type I FGM cylindrical shell has Nickel on its inner surface and stainless steel on its outer surface and Type II FGM cylindrical shell has stainless steel on its inner surface and nickel on its outer surface. The study is carried out based on third order shear deformation shell theory. The objective is to study the natural frequencies, the influence of constituent volume fractions and the effects of configurations of the constituent materials on the frequencies. The properties are graded in the thickness direction according to the volume fraction power-law distribution. The governing equations are obtained using energy functional with the Hamilton's principle. The boundary conditions in this cylindrical shell made of two material is simply support-simply support (SS-SS). Results are presented on the frequency characteristics, the influence of the constituent various volume fractions on the frequencies for a Type I, II FGM cylindrical shell. © 2011 Praise Worthy Prize S.r.l. - All rights reserved.


Isvandzibaei M.R.,Islamic Azad University at Andimeshk | Setareh M.,Islamic Azad University at Andimeshk
International Review on Modelling and Simulations | Year: 2011

Study on the vibration of cylindrical shell made of a functionally gradient material (FGM) composed of stainless steel and nickel is presented. The effects of the FGM configuration are studied by studying the frequencies of two FGM cylindrical shells. Type I FGM cylindrical shell has Nickel on its inner surface and stainless steel on its outer surface and Type II FGM cylindrical shell has stainless steel on its inner surface and nickel on its outer surface. The study is carried out based on third order shear deformation shell theory. The objective is to study the natural frequencies, the influence of constituent volume fractions and the effects of configurations of the constituent materials on the frequencies. The properties are graded in the thickness direction according to the volume fraction power-law distribution. The governing equations are obtained using energy functional with the Rayleigh-Ritz method. Results are presented on the frequency characteristics, the influence of the constituent various volume fractions on the frequencies for a Type I, II FGM cylindrical shell. © 2011 Praise Worthy Prize S.r.l. -All rights reserved.


Setareh M.,Islamic Azad University at Andimeshk | Isvandzibaei M.R.,Islamic Azad University at Andimeshk
International Review on Modelling and Simulations | Year: 2011

The effects of the FGM configuration are studied by studying the frequencies of two FGM cylindrical shells. Type I FGM cylindrical shell has Nickel on its inner surface and stainless steel on its outer surface and Type II FGM cylindrical shell has stainless steel on its inner surface and nickel on its outer surface. The study is carried out based on third order shear deformation shell theory. The objective is to study the natural frequencies, the influence of constituent volume fractions and the effects of configurations of the constituent materials on the frequencies. The properties are graded in the thickness direction according to the volume fraction power-law distribution. The governing equations are obtained using energy functional with the Rayleigh-Ritz method. The boundary conditions in this cylindrical shell made of two material is free-free (F-F). Results are presented on the frequency characteristics, the influence of the constituent various volume fractions on the frequencies for a Type I, II FGM cylindrical shell. © 2011 Praise Worthy Prize S.r.l. - All rights reserved.


Mosleh M.,Islamic Azad University at Andimeshk | Noori H.,Islamic Azad University at Andimeshk | Nikdel A.,Islamic Azad University at Andimeshk
International Journal of Smart Home | Year: 2014

One of the most important problems in the wireless sensor networks is the detection of events in a certain area (target area). This challenge is an important case in the wireless sensor network research and it is named the coverage problem. Regarding the sensors redundancy, we can improve the network lifetime by activating enough number of nodes and making the others sleep. Also, proposing a method that uses the nodes energy equally can prolong the network lifetime. In this paper, we propose a new Energy Based Coverage Method (EBCM). The proposed method decreases the energy consumption and prolongs the network lifetime. The effectiveness of the proposed method is evaluated using NS2 simulator. © 2014 SERSC.


Setareh M.,Islamic Azad University at Andimeshk
World Academy of Science, Engineering and Technology | Year: 2011

Machining process sometimes carried out on plastic pieces with the purpose of maintaining, completing, changing and dimensional accuracy. For machining process of plastics include milling, plane cutting head, form cutting, it is advised that tools with ability to resist against increase of temperature and perform at high speed were used to establish appropriate surface quality. An important point in machining process on plastics is their weakness in conductivity of heat resulted from friction between cutting edge and contact surface of work piece so, some changes and adjustment should be done on machining parameters such as cutting speed, advance rate and specially geometry and kind of the tools for achieving desired surface quality. In this method we seek appropriate tools for expressing surface smoothness in a desired manner. So, some experiments were done on a CNC milling tool with axial strength 18 KW and maximum axial speed of 4500 rpm. At first, empirical experiment is conducted using H.S.S tools and after that by carbide tools. Kind of Teflon piece (PTFE) and parameters such as advance rate, cutting depth and coolant material were considered as constant variables. Roughness tester was used for measuring the surface smoothness. Findings resulted from models were compared and examined that which model have higher accuracy we achieve more accurate model for expressing surface smoothness. Finally, we showed the effects of H.S.S and carbide tools on surface smoothness obtained using some models and forms.


Isvandzibaei M.R.,Islamic Azad University at Andimeshk
International Review of Mechanical Engineering | Year: 2011

In the present work, study of the vibration of thin cylindrical shells made of a functionally gradient material (FGM) composed of stainless steel and nickel is presented. Material properties are graded in the thickness direction of the shell according to volume fraction power law distribution. The objective is to study the natural frequencies, the influence of constituent volume fractions and the effects of boundary conditions on the natural frequencies of the FG cylindrical shell. The study is carried out using third order shear deformation shell theory. The analysis is carried out using Hamilton's principle. The governing equations of motion of FG cylindrical shells are derived based on shear deformation theory. Results are presented on the frequency characteristics, influence of constituent volume fractions and the effects of clampedsimply boundary conditions. © 2011 Praise Worthy Prize S.r.l. - All rights reserved.

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