Volume 15 (2022)
Volume 14 (2021)
Volume 13 (2020)
Volume 12 (2019)
Volume 11 (2018)
Volume 10 (2017)
Volume 9 (2016)
Volume 8 (2015)
Volume 7 (2014)
Volume 5 (2011-2012)
Volume 4 (2010-2011)
Volume 3 (2009-2010)
Volume 2 (2008-2009)
Volume 1 (2007-2008)
1. A Novel Study of Penetration ‎into Concrete Targets by Ogive ‎Nose Projectiles

Ahmad Reza Khoogar; Mohamad Ali Mohades; Khodadad Vahedi

Volume 6, Issue 3 , September 2013

Abstract
  In design of defense structures, concrete are often used to provide protection against incidental dynamic loadings such as the impact of a steel projectile. In the present study, a new analytical model is proposed to predict penetration depth into concrete targets by ogive nose projectile. Hence, to ...  Read More

2. Effects of tool material on the machinability of titanium (Grade-5) alloy by using RSM

kali Dass

Volume 6, Issue 3 , September 2013

Abstract
  This paper presents the findings of experimental investigations into the effects of cutting speed, feed rate, depth of cut and approach angle on the machinability of titanium (Grade-5) alloy. Also the comparison for the two different cutting materials inserts polycrystalline diamond (PCD) and cubic boron ...  Read More

3. Design and Analysis of a New Dental Implant using Finite Element Method

Sadegh Rahmati; Hossein Kheirollahi; Abbas Azari

Volume 6, Issue 3 , September 2013

Abstract
  Dental implants restorations basically include four parts: implant, abutment, metal framework, and crown. In this common kind of restoration, crown is cemented to metal framework. However, in this research a novel method of design of dental implant is presented which includes only two components: Integrated ...  Read More

4. A New Method for Biomodelling and Rapid Prototyping of Human's Hard Tissues as Substituting Prostheses

Kasra Karbaschi

Volume 6, Issue 3 , September 2013

Abstract
  3D imagination of human's organs has become feasible by digital image processing techniques and algorithms via CT or MRI images in recent years. In this study, a new method for reverse engineering and biomodelling of hard tissues by CATIA cloud points' concept has been considered. Comparing with the ...  Read More

5. Investigation of water balance in water recovery of closed steam injection gas turbine cycles

Mohsen Ghazikhani; Ali Mohammadian; Iman Mirzaii

Volume 6, Issue 3 , September 2013

Abstract
  An industrial gas turbine has the characteristic of decreasing output power on hot summer days while electricity demand peaks. Steam injection in gas turbines has been used for many years to prevent the loss of performance of gas turbines caused by high ambient temperature. Vodoley system is a Closed ...  Read More

6. Comparison of performances of air standard Atkinson, Diesel and Otto cycles with constant specific heats

Alireza Hajipour

Volume 6, Issue 3 , September 2013

Abstract
  In this paper, the effects of input temperature and compression ratio on the net output work and efficiency of the air standard cycles, i.e. Atkinson cycle, Diesel cycle and Otto cycle are analyzed. We assumed that the compression and power processes are adiabatic and reversible and any convective, conductive ...  Read More

7. Experimental Examination of Intact and CFRP Retrofitted RC Beams under Monotonic and High Cycle Fatigue Loadings

Mohammad Zaman Kabir; Ata HojjatKashani

Volume 6, Issue 3 , September 2013

Abstract
  The aim of this research is to investigate the effect of Carbon Fiber Reinforced Polymer (CFRP) composite fabric on monotonic and fatigue behaviors of reinforced concrete beams. To control the failure occurrence, a small notch was induced at the middle span in bottom surface for all of the studied RC ...  Read More

8. A New Approach for Determining the Optimum Pressure–Time Diagram in Superplastic Forming Process

Hamed Sheikhalishahi; Mahmoud Farzin; Reza Jafari Nedoushan; Mohammad Ali Rasouli; Masoud Aliheidar

Volume 6, Issue 3 , September 2013

Abstract
  Superplastic materials show huge amount of deformation in low strain rates and temperature above half of melting point. In superplastic forming, estimating the pressure–time diagram and thickness distribution has significant importance. Utilizing numerical methods, the involved parameters in superplastic ...  Read More

9. Investigation of Variance of Roller Burnishing Parameters on Surface Quality by Taguchi Approach

Mohammad Sajjad Mahdieh; Ehsan Rafati; Samaneh Kargar Sichani

Volume 6, Issue 3 , September 2013

Abstract
  Surface roughness of engineering parts is very significant property that effectively influences on the wear and fatigue strength. There are many methods for improving surface quality of engineering parts such as grinding, lapping and honing. One of the methods for improving surface quality is Roller ...  Read More

10. Maximizing First Natural Frequency Of 2D Structures Using Bee Colony Optimization (BCO) and fuzzy logic

esmail delfani; ahmad delfani; a ghoddosian

Volume 6, Issue 3 , September 2013

Abstract
  Nowadays, different methods are used to solve optimization problems which ,one of the newest is BCO method that are inspired by the nature and derived from the social life of bees of these methods can be noted that BCO is derived from the social life of bees. We use in this paper fuzzy logic for bee‟s ...  Read More

11. Study of Skin Friction in Channels by Lattice Boltzmann Method

Ahad Zarghami; Negar Ahmadi

Volume 6, Issue 3 , September 2013

Abstract
  A finite volume-lattice Boltzmann algorithm is applied to study skin friction behaviour in different channel flows. For this purpose, cell centred scheme is adapted to discretize the Boltzmann equation and consistent boundary conditions are also addressed, which resulted in a wider domain of stability. ...  Read More

12. Determining the Optimal Size and Operation Sensitivity Analysis of a CCHP System Implemented in a Residential unit in Tehran

Adel Gholami; Arman Fathi

Volume 6, Issue 3 , September 2013

Abstract
  Abstract: Implementing a combined cooling, heating and power system(CCHP) to cool, heat and produce electricity is growing rapidly due to its efficiency and low emissions. In this paper, using economic analysis, the size and operation detail of the required gas engine and the specific electricity, cooling ...  Read More