Volume 14, Issue 4 (2021) | American Journal of Engineering and Applied Sciences

The Effects of Oil Film Shape on Piston Ring and Liner Tribology Under Mixed Lubrication

Abbas Razavykia — 2021-11-10

American Journal of Engineering and Applied Sciences, Published online: 10 November 2021; doi:10.3844/ajeassp.2021.436.447

Mechanical power loss reduction at lubricated reciprocating and rotating components is recognized as an approach to improve the efficiency and to reduce the emissions of Internal Combustion Engines (I...

Thermodynamic Analysis of a Marine Refrigeration Machine with Ammonia

Mawhoub Soubih — 2021-11-25

American Journal of Engineering and Applied Sciences, Published online: 25 November 2021; doi:10.3844/ajeassp.2021.448.454

The purpose of this study is to present a thermodynamic modeling of a marine chiller using ammonia as a refrigerant. The modeling is based on the first and second laws of thermodynamics and the fundam...

Investigation of Landform and Sunlight in Zayandeh Roud Basin

Kaveh Ostad-Ali-Askari — 2021-12-15

American Journal of Engineering and Applied Sciences, Published online: 15 December 2021; doi:10.3844/ajeassp.2021.455.460

Solar energy is as of energy that it is significant in human activities. Human activities can use in agricultures, factories, industrial and residential plan. In other hand, solar energy is as renewab...

Influence of Time, Temperature and Pressure on the Creasing of Wool/Polyester Blended Fibers

Brian F.G. Katz — 2021-12-23

American Journal of Engineering and Applied Sciences, Published online: 23 December 2021; doi:10.3844/ajeassp.2021.461.469

Studies investigating the response of a natural/synthetic blended material to variations of time, temperature and pressure with respect to induced deformations have been carried out. Such a material i...

Analysis and Simulation of the Dynamics of Nickel Anode Plate Handling Robot

Krich Richel Mpemissi Kombo — 2021-12-27

American Journal of Engineering and Applied Sciences, Published online: 27 December 2021; doi:10.3844/ajeassp.2021.470.477

As an integral part of the industrial automation system, a joint robot with artificial intelligence technology, virtual prototype technology and co-simulation technology has developed rapidly. In part...

Mechanical Properties of Concrete Including Wood Shavings as Fine Aggregates

Ashraf A. M. Fadiel — 2021-12-31

American Journal of Engineering and Applied Sciences, Published online: 31 December 2021; doi:10.3844/ajeassp.2021.478.487

Residual and end-life products are a major hazard on the environment. Many researchers have considered waste as partial replacement of some construction materials to reduce their environmental and eco...