Scientific extension
Futurology in Astrobotany and Future Space Travels

Iman Shafieenejad; Sharareh Ghasemi; Ali Mahmoodi; Reza Safarzadeh

Volume 4, Issue 4 , February 2021, Pages 1-9

Abstract
  Nowadays, astrobiology, as an interdisciplinary science in the field of space futures studies, has been widely considered by futurists and planning for future scenarios has received special attention. This article introduces the knowledge of future studies, as well as living in space with regard to the ...  Read More

Scientific extension
Effect of Microgravity on Nucleolar Protein Contents and Regulation of Plant Cell Division

Halimeh Hassanpour

Volume 4, Issue 4 , February 2021, Pages 19-11

Abstract
  Living organisms have evolved in the presence of constant gravity (1g) on Earth and their growth is related to rate of ribosome, protein biosynthesis, and regulation of cell cycle phases. Microgravity does not have the same effects on different phases of cell cycle such that activity of some phases is ...  Read More

Research Note Aerodynamics/Fluid Mechanics/Aeroacoustics/...
Improving the Aerodynamic Performance of Radial Gas Microturbine with Double Curvature Blades

Reza Aghaei Togh; Marziyeh Ahmadi; Mohamadhasan Nobakhti

Volume 4, Issue 4 , February 2021, Pages 21-30

Abstract
  This research aims to improve aerodynamic performance of a radial gas microturbine from input to output, so that the best case can be selected. In this work, ANSYS CFX software was used. First, using one-dimensional model, different states were investigated and the best mode was selected. Then, by solving ...  Read More

Research Article Flight mechanics/Navigation/Control/...
Model Predictive Control Based on Intelligent Model for Low Earth Orbit Satellite

Taha Yasini; Jafar Roshanian; Shahin Darvishpour

Volume 4, Issue 4 , February 2021, Pages 31-41

Abstract
  In this paper, an orbit control algorithm is implemented for low earth orbit (LEO) satellites, using artificial neural networks (ANN), model-based predictive control (MPC), and linear quadratic regulator (LQR). As a self-tuning regulator structure, an ANN is used to learn the model of the satellite with ...  Read More

Research Note Space Engineering/Space Orbit Mechanics/Space Sciences/...
Communication Space Bus in GEO

Alireza Amirkhani; Mehran Mirshams

Volume 4, Issue 4 , February 2021, Pages 43-53

Abstract
  Considering increased demand for launching satellites into geostationary orbit and use of orbit-spectrum resources, preserving these resources is essential. Space bus is a communication satellite in GEO with orbital maneuvering mission to maintain the orbit-spectrum concession. In this paper, statistical ...  Read More

Scientific extension Aerodynamics/Fluid Mechanics/Aeroacoustics/...
Morphing Wings- A Novel Design in Aviation Industry

Reza Harbi Monfared; Mohamad Taeibi Rahni; Masoud Zareh

Volume 4, Issue 4 , February 2021, Pages 66-55

Abstract
  This article aims to study and investigate morphing wings, based on bierd’s wings, and their effects on air vehicles. This is modeled after shapes of wings and flight of birds throughout the world. First, the shape of beird’s wings and their use during defferent hight situation are investigated. ...  Read More