2. A Simple and Fast Method for Field Calibration of Triaxial Gyroscope by Using Accelerometer

S. Ranjbaran; A. Roudbari; S. Ebadollahi

Volume 6, Issue 1 , Winter and Spring 2018, Pages 1-6

  Using field calibration methods without precision laboratory equipment, systematic faults of inertial sensors can be reduced and measurement accuracy can be increased. In this paper, a simple and fast method called improved least squares is used to find calibration coefficients of an accelerometer including ...  Read More

3. Improvement the Efficiency of CIGS Thin Film Solar Cells by Changing the Doping of the Absorbent Layer and Adding the InAsP Layer

H. Firoozi; M. Imanieh

Volume 6, Issue 1 , Winter and Spring 2018, Pages 7-14

  In this article, the functionality of solar cells structure based on CuIn1-xGaxSe2 is investigated. This type of solar cell consists of different layers, namely ZnO (TCO layer), Cd_S (Buffer layer), CIGS (Absorbent layer), and MO (Substrate layer). Two layers, Cd_S and CIGS, form a PN Junction.  ...  Read More

4. A New Model for Text Coherence Evaluation Using Statistical Characteristics

M. Abdolahi; M. Zahedi

Volume 6, Issue 1 , Winter and Spring 2018, Pages 15-24

  Discourse coherence modeling evaluation becomes a critical but challenging task for all content analysis tasks in Natural Language Processing subfields, such as text summarization, question answering, text generation and machine translation. Existing methods like entity-based and graph-based models are ...  Read More

5. Compact Low Pass Filter Using Sharp Roll-off Ultra-Wide Stopband T-shaped Resonator

F. Yousefi Moghadam; B. Afzali; F. Nadi; R. Zallbeygi

Volume 6, Issue 1 , Winter and Spring 2018, Pages 25-32

  In this paper, an ultra-wide stopband microstrip low pass filter with sharp roll-off and compact size is designed and fabricated. To provide very small dimensions, T-shaped and stepped impedance have been used. The cut off frequency at -3 dB is 3.1 GHz. In the proposed structure, the insertion loss is ...  Read More

6. A Method for Estimating the Cost of Software Using Principle Components Analysis and Data Mining

A. Saberi nejad; R. Tavoli

Volume 6, Issue 1 , Winter and Spring 2018, Pages 33-42

  Nowadays, data mining is one of the most significant issues. One field of data mining is a mixture of computer science and statistics which is considerably limited due to increase in digital data and growth of computational power of computers. One of the domains of data mining is the software cost estimation ...  Read More

Original Research Paper
7. A Switched Reluctance Motor with Lower Temperature Rise and Acoustic Noise

P. Vahedi; B. Ganji

Volume 6, Issue 1 , Winter and Spring 2018, Pages 43-52

  In the present paper, a shape design method is introduced for switched reluctance motors (SRM) by which both heat transfer and acoustic noise are improved. For evaluation of the proposed shape design method, a simulation model based on finite element method (FEM) is also developed to predict both the ...  Read More

Original Research Paper
8. A Numerical Optimization of an Efficient Double Junction InGaN/CIGS Solar Cell

M. Feli; F. Parandin

Volume 6, Issue 1 , Winter and Spring 2018, Pages 53-58

  An efficient double junction InGaN/CIGS solar cell can be simulated using Silvaco ATLAS software. In this study, a thin CdS top cover layer is used as the anti-reflector layer. To reach the current matching condition, changing the thickness of this CdS layer, we can enhance the short-circuit currents ...  Read More

Original Research Paper
9. Software Quality Models: A Comprehensive Review and Analysis

H. Rashidi; M. Sadeghzadeh Hemayati

Volume 6, Issue 1 , Winter and Spring 2018, Pages 59-76

  One of the major challenges in software engineering is how to respond to the desolate state of high-quality software development in a timely and cost-effective manner. Software quality refers to the abilities related to the properties of software products in meeting users' requirements. Many studies ...  Read More

Original Research Paper
10. Analysis of a Linear Induction Motor with Solid Iron Secondary

S.E. Abdollahi; M. Mirzaei

Volume 6, Issue 1 , Winter and Spring 2018, Pages 77-84

  Linear induction motors (LIMs) are widely employed in rail transportation systems due to their robust, simple and low cost structure. Several methods have evaluated various topologies'' performances in the literature. These methods are more and less effective in the intended structures. In this paper, ...  Read More

Original Research Paper
11. Design of a Discrete-time Sliding Mode Controller for Nonlinear Affine Systems based on Disturbance Estimation

N. Azam Baleghi; M.H. Shafiei

Volume 6, Issue 1 , Winter and Spring 2018, Pages 85-94

  In this paper, a sliding mode controller based on the disturbance estimation is designed for a class of discrete-time nonlinear affine systems. Based on two disturbance compensator schemes, static and dynamic, procedures of sliding mode controller design are proposed for the discrete-time system. In ...  Read More

12. A Novel Method of FACTS-POD Design to More Enhancement of Inter-Area Mode Damping in a Multi-Machine Power System

B. Ehsan maleki; H. Beiranvand

Volume 6, Issue 1 , Winter and Spring 2018, Pages 95-106

  In this paper, a non-typical design method of flexible AC transmission systems power oscillation damping (FACTS-POD) controller is proposed to increase the efficiency of these devices. In all of the introduced FACTS-POD devices (taking IPFC-POD as an example), the supplementary controller is designed ...  Read More

Original Research Paper SECURITY
13. Cryptanalysis of R2AP an Ultralightweight Authentication Protocol for RFID

M. Safkhani

Volume 6, Issue 1 , Winter and Spring 2018, Pages 107-114

  To overcome the security flaw of RAPP authentication protocol, Zhuang et al. proposed a novel ultralightweight RFID mutual authentication protocol, called R2AP. In this paper, we first propose a new desynchronization attack against this protocol that succeeds with the probability almost 1 and requires ...  Read More