Volume 13, Issue 1 (2020) | American Journal of Engineering and Applied Sciences

Viability of Using Local Waste Materials in the Production of High-Performance and Self-Compacting Concrete

Sayed Mohamad Soleimani — 2020-01-06

American Journal of Engineering and Applied Sciences, Published online: 6 January 2020; doi:10.3844/ajeassp.2020.1.9

The objective of this study is to investigate the effects of using local waste materials on the properties of fresh and hardened high performance and self-compacting concrete. Crushed ceramic products...

Urban Renewal through Sustainable Development: A Case Study in Iran

S. Hessam Miri — 2020-01-09

American Journal of Engineering and Applied Sciences, Published online: 9 January 2020; doi:10.3844/ajeassp.2020.10.20

Decayed urban areas, especially those located in the city center, are one of the major problems of cities. These areas, which known as the main nucleus of cities at the time of their emergence, have l...

Groundwater Quality Assessment of Three Zonal Regions in the Sunyani Municipality

Kwabena Antwi Kusi — 2020-01-11

American Journal of Engineering and Applied Sciences, Published online: 11 January 2020; doi:10.3844/ajeassp.2020.21.26

This project aimed at assessing the variation of ground water quality (physical, chemical and bacteriological parameters) in relation to the WHO standards from fifteen (15) randomly selected ground wa...

Investigating Commuting Time in a Metropolitan Statistical Area Using Spatial Autocorrelation Analysis

S. Hessam Miri — 2020-01-11

American Journal of Engineering and Applied Sciences, Published online: 11 January 2020; doi:10.3844/ajeassp.2020.27.36

Commuting is an unavoidable issue as living and working are two spatially separated activities for most people. The most influence of commuting is on land uses and transportation systems and ultimatel...

Proposed Self-Regulation Model for Collaborative E-Learning Systems in Kenyan Public Universities

Grace Leah Akinyi — 2020-01-11

American Journal of Engineering and Applied Sciences, Published online: 11 January 2020; doi:10.3844/ajeassp.2020.37.48

Integration of technology in learning such as Electronic-learning has become an indispensable segment of higher education in Sub-Saharan Africa. This has opened up opportunities that improve teaching ...

Reversible Ionizing Radiation Sensors Based on Carbon Nanotubes

Kenneth Fontánez — 2020-02-03

American Journal of Engineering and Applied Sciences, Published online: 3 February 2020; doi:10.3844/ajeassp.2020.49.55

Vertically Aligned Carbon Nanotubes (VA-CNTs) were grown by Chemical Vapor Deposition (CVD) on a silicon substrate with alternating layers of TiN and SiO2. VA-CNTs were exposed to X-ray radiation to s...

A Quantum Observation Technique: The 'Celalettin-Field Quantum Observation Tunnel'in an IC-Manifold and the 'Celalettin Tunnel Conjecture'; a Short Communication

Metin Celalettin — 2020-02-19

American Journal of Engineering and Applied Sciences, Published online: 19 February 2020; doi:10.3844/ajeassp.2020.56.60

The 'Celalettin-Field Quantum Observation Tunnel' (Celalettin Tunnel) is a quantum observation technique. It is within a pneumatic manifold of Euclidean space where the randomness of particle Orbital...

Fabrication of Ni, Si and Mg Supersaturated Solid Solutions in Al by Mechanical Alloying

A. Sedano — 2020-02-23

American Journal of Engineering and Applied Sciences, Published online: 23 February 2020; doi:10.3844/ajeassp.2020.61.71

In this work, a comparison between the synthesis process of nanostructured Al base alloys modified with Si, Ni and Mg and the formation of their respective supersaturated solid solution is presented. ...

The Watershed Structures in Controlling Runoff - Case Study of Sardasht Basin in IRAN

Seyedeh Zahra Hosseini-Teshnizi — 2020-02-26

American Journal of Engineering and Applied Sciences, Published online: 26 February 2020; doi:10.3844/ajeassp.2020.72.95

In order to investigate the performance of constructed structures in Sardasht watershed, Soil and Water Assessment Tools model for simulation of runoff and sediment during the studied period of 1996-2...

New Approach in Application of the AHP–Fuzzy TOPSIS Method in Mineral Potential Mapping of the Natural Bitumen (Gilsonite): A Case Study from the Gilan-e-Gharb Block, the Kermanshah, West of Iran

Elham Rahimi — 2020-03-02

American Journal of Engineering and Applied Sciences, Published online: 2 March 2020; doi:10.3844/ajeassp.2020.96.110

The Gilan-e-Gharb block is known as a prospective area for hydrocarbon resources in the form of oil, gas in deep potential and natural bitumen (Gilsonite) on the surface. Natural bitumen is not clearl...

About Aircraft's New Power and Propulsion

Relly Victoria Virgil Petrescu — 2020-03-05

American Journal of Engineering and Applied Sciences, Published online: 5 March 2020; doi:10.3844/ajeassp.2020.111.123

Even though the current classical methods of aerospace propulsion are much improved, some of the most modern methods have already been introduced, including propulsion with electric motors. Energy can...

Methodology to Analyze the Stability of Bench Marks Applied for Settling Measurements of Buildings Foundation

Andréa de Seixas — 2020-03-18

American Journal of Engineering and Applied Sciences, Published online: 18 March 2020; doi:10.3844/ajeassp.2020.124.137

In this work, one type of vertical bench mark is presented for the realization of the Vertical Local Geodetic Network for the control and analysis of settling foundation elements. The revision of the ...

Relational Contracting in the Building Sector in Jordan as a Substitute to Conventional Formal Methods

Razan Aleasawi — 2020-03-25

American Journal of Engineering and Applied Sciences, Published online: 25 March 2020; doi:10.3844/ajeassp.2020.138.145

The socioeconomic policies within the Hashemite Kingdom of Jordan aim to enhance the Public-Private Partnership (PPP), one of the Relational Contracting models, to encourage investment, improve public...