Volume 13, Issue 2 (2020) | American Journal of Engineering and Applied Sciences

Synthesis and Characterization of Cobalt, Iron and Ruthenium Catalysts for the Production of Synthetic Diesel

Dayna M. Ortiz Rodríguez — 2020-04-29

American Journal of Engineering and Applied Sciences, Published online: 29 April 2020; doi:10.3844/ajeassp.2020.146.152

Fossil fuels are currently the world's leading source of energy. Environmental legislations, the high price of fossil fuels, the concern about the supply of these fuels and technological development, ...

Assessing and Improving the Performance of Grouted Macadam

Momtaz M. Othman — 2020-04-29

American Journal of Engineering and Applied Sciences, Published online: 29 April 2020; doi:10.3844/ajeassp.2020.153.164

There are many road defects appear in flexible pavement layers. Rutting, raveling and cracks are considered the main problems in Egypt. Using grouted macadam system as a surface asphaltic layer (or ca...

Newcastle Traffic Classification Using Clustering Algorithms

Hamad B Matar — 2020-04-04

American Journal of Engineering and Applied Sciences, Published online: 4 April 2020; doi:10.3844/ajeassp.2020.165.172

The urban road traffic network evolution is complex and varies depend on road type, zoning types and social activities. Typical traffic pattern variation of road network could be examined by consideri...

The Appropriate Use of Wind Energy in Sistan Region to Generate Electricity

Sara Abdollahi — 2020-05-06

American Journal of Engineering and Applied Sciences, Published online: 6 May 2020; doi:10.3844/ajeassp.2020.173.181

Sistan (Zabol) region is located in Sistan and Baluchestan province and in southeastern part of Iran. The specific atmospheric condition of this region, especially high-speed and continuous winds, can...

Dilution of Single Port Submerged Diffuser Clogged by a Free Rotating Propeller

Ahmed Ashmawy — 2020-05-06

American Journal of Engineering and Applied Sciences, Published online: 6 May 2020; doi:10.3844/ajeassp.2020.182.190

Thermal pollution raises the water source temperature and thus causes a change in the physical, chemical, and biochemical properties of water. That makes limitations for designing cooling systems, whi...

Presents the Dynamics at a Basic Anthropomorphic Robot

Relly Victoria Virgil Petrescu — 2020-05-05

American Journal of Engineering and Applied Sciences, Published online: 5 May 2020; doi:10.3844/ajeassp.2020.191.203

Serial robots are the most used today and among them, the most common is the basic 3R module, the module that is developed in the vast majority of anthropomorphic serial industrial robots, which today...

Investigation of Changes in the Structure of Isfahan City in Ancient Texture, Iran

Parisa Ashrafi — 2020-05-19

American Journal of Engineering and Applied Sciences, Published online: 19 May 2020; doi:10.3844/ajeassp.2020.204.223

The structure of a city can be affected by many factors, such as environmental, economic, social, political, dominant intellectual parties and urban patterns of the world. Textural-spatial structure o...

Shore Line Mathematical Modelling and Integrated Groundwater Potentiality Study in the Northern Coast Mediterranean Sea, Egypt

Rasha El Gohary — 2020-05-14

American Journal of Engineering and Applied Sciences, Published online: 14 May 2020; doi:10.3844/ajeassp.2020.224.236

The purpose of this research is to determine surface and subsurface features in the proposed sites. Meanwhile accessibility and availability of water resources. It will have carried out a comprehensiv...

The Effects of Using Crumb Rubber Modified Binder in an Asphalt Pavement

Sayed Mohamad Soleimani — 2020-05-14

American Journal of Engineering and Applied Sciences, Published online: 14 May 2020; doi:10.3844/ajeassp.2020.237.253

In this study, laboratory investigations have been carried out to characterize and demonstrate the improved performance of asphalt after modifying it with crumb rubber. The study has been divided into...

Quantum Technology: Advances and Trends

Lidong Wang — 2020-05-15

American Journal of Engineering and Applied Sciences, Published online: 15 May 2020; doi:10.3844/ajeassp.2020.254.264

Quantum science and quantum technology have become significant areas that have the potential to bring up revolutions in various branches or applications including aeronautics and astronautics, militar...

Basics of Photocatalysis and Different Strategy for Enhancing the Photocatalytic Efficiency

Yuvaraj M. Hunge — 2020-05-21

American Journal of Engineering and Applied Sciences, Published online: 21 May 2020; doi:10.3844/ajeassp.2020.265.268

This review reports on the basic mechanism of photocatalysis and different ways of enhancing the photocatalytic efficiency. It further examines enhancement of the photocatalytic property using the dif...

Kinematic and Dynamic Analysis of a Classic, Three-Axis Manual Gearbox, Without a Direct Socket

Relly Victoria Virgil Petrescu — 2020-05-24

American Journal of Engineering and Applied Sciences, Published online: 24 May 2020; doi:10.3844/ajeassp.2020.269.282

Fixed axis mechanical transmissions today have the largest spread on the entire planet, being practically used in almost all areas. From the gearboxes of the vehicles to the stationary reducers, used ...

Estimation of Natural and Artificial Recharge of Shahreza Plain Groundwater in Isfahan Using CRD and Hantush Models

Mohsen Nekooei — 2020-06-17

American Journal of Engineering and Applied Sciences, Published online: 17 June 2020; doi:10.3844/ajeassp.2020.283.295

Cumulative Rainfall Departure model (CRD) is widely used for estimation of ground natural recharge. This model is based on the groundwater balance and it requires random parameters. Moreover, an incre...

A Computational Investigation into the Effect of Equal Channel Angular Processing on the Mechanical Properties of Severely Deformed ZK 60 Alloy Validated by Experiments

Omar Almenaif — 2020-06-09

American Journal of Engineering and Applied Sciences, Published online: 9 June 2020; doi:10.3844/ajeassp.2020.296.310

In this study, the response surface method and finite-element analysis were employed to model the ECAP processing for biodegradable magnesium alloy ZK 60 behavior at 250°C. Using Finite-Element (FE) ...

Image Thresholding Using the Complement Feature

Salah Ameer — 2020-06-08

American Journal of Engineering and Applied Sciences, Published online: 8 June 2020; doi:10.3844/ajeassp.2020.311.317

A new feature (the complement feature) is proposed in an Eigen formulations for performing global image thresholding. The goal is to find an intensity or gray-level value below which is the background...

Investigation of Sandwich Panel Under High Temperature Loading Using Finite Element Analysis

Sajjad Sayyar Roudsari — 2020-07-01

American Journal of Engineering and Applied Sciences, Published online: 1 July 2020; doi:10.3844/ajeassp.2020.318.326

Structural and nonstructural members are always encountered with extreme loading conditions. In case of nonstructural members, the failure happens much sooner due to lack of load capacity. The nonstru...