Volume 12, Issue 4 (2019) | American Journal of Engineering and Applied Sciences

Evaluation of Treated Wastewater in Terms of Environmental Standards

Sona Pazdar — 2019-09-27

American Journal of Engineering and Applied Sciences, Published online: 27 September 2019; doi:10.3844/ajeassp.2019.450.459

The desired use of refined wastewater has not yet found its proper place in many countries, therefore, achieving a relative equilibrium in the field of urban wastewater evacuation and re-utilizing it ...

Efficiency of Hybrid MPPT Techniques Based on ANN and PSO for Photovoltaic Systems under Partially Shading Conditions

Max Tatsuhiko Mitsuya — 2019-10-03

American Journal of Engineering and Applied Sciences, Published online: 3 October 2019; doi:10.3844/ajeassp.2019.460.471

Hybrid Maximum Power Point Tracking (MPPT) algorithms have been investigated as an alternative to improve the performance of conventional MPPT, such as Perturb and Observe (P&O), Incremental Conductan...

Nanoplastics in the Environment and the Effects on the Zebrafish

Jimmy De León — 2019-10-08

American Journal of Engineering and Applied Sciences, Published online: 8 October 2019; doi:10.3844/ajeassp.2019.472.475

Plastic is one of the most used materials in the world, adopted in almost all activities of human life, but due to the high persistence and durability in the environment, it is causing pollution probl...

Concretes Resistance of Yam a Great Persistence

Hossein Gholami — 2019-10-09

American Journal of Engineering and Applied Sciences, Published online: 9 October 2019; doi:10.3844/ajeassp.2019.476.481

Today all distinguish the position of earthquake withstanding of constructions in seismic-vulnerable zones. With respect to this opinion that current concrete constructions are usually considered and ...

Exploring the Potential for Concentration of Nutrients from Urine Using Solar Evaporation and Carbon Dioxide Trapping of Ammonia

Tesfamariam Y. Debessai — 2019-10-28

American Journal of Engineering and Applied Sciences, Published online: 28 October 2019; doi:10.3844/ajeassp.2019.482.494

Nutrients derived from urine such as nitrogen, phosphorous and potassium constitute valuable sources of fertilizers needed for growing plants and as alternatives to commercial fertilizers. Concentrati...

A Technical, Economic and Environmental Evaluation Study of Utilising Fixed, Single and Dual-Axis Solar Photovoltaic Systems in Boubyan and Failaka Islands in Kuwait

Dr. Abdulla AL-Rashidi — 2019-11-09

American Journal of Engineering and Applied Sciences, Published online: 9 November 2019; doi:10.3844/ajeassp.2019.495.502

Implementing renewable energy technologies, such as solar energy, is an important step towards meeting the increasing demand for electricity in Kuwait. This would be a very helpful way of minimising t...

Structure of a Photovoltaic Electric Locomotive

Florian Ion Tiberiu Petrescu — 2019-11-16

American Journal of Engineering and Applied Sciences, Published online: 16 November 2019; doi:10.3844/ajeassp.2019.503.507

The paper proposes to start studies at the global level for the implementation of photovoltaic electric locomotives. The question the author asks is why such trains have not been implemented so far, i...

Parameter Settings for an Automated Gantry-Robot Painting System using a 3-Gun Atomization Spray Method for an Anti- Static Coating Process

Zunaidi Ibrahim — 2019-11-22

American Journal of Engineering and Applied Sciences, Published online: 22 November 2019; doi:10.3844/ajeassp.2019.508.524

Dry film thickness and appearance are the main quality improvements that can be achieved by an automated painting system in the manufacturing process. This study presents the spray coating process for...

Evaluation of the use of Polyurethane Residue Aggregated to the Plaster of Civil Construction

Guilherme Moraes de Oliveira — 2019-11-27

American Journal of Engineering and Applied Sciences, Published online: 27 November 2019; doi:10.3844/ajeassp.2019.525.534

The study deals with the reuse of Polyurethane (PU) obtained from a kitchen sponge added to plaster for use in civil engineering. The kitchen sponge is an item widely used by the population in their d...

Machine Learning-Based Detection of Credit Card Fraud: A Comparative Study

Zainab Khamees Alkhateeb — 2019-12-25

American Journal of Engineering and Applied Sciences, Published online: 25 December 2019; doi:10.3844/ajeassp.2019.535.542

One of the fastest-growing problems with a high impact on the financial sector is financial fraud. Recently, data mining has been identified as one of the effective ways of detecting fraudulent credit...

Microstrip Bandpass Filter with Wide Stopband and High Out-of-Band Rejection

Mohamad Farhat — 2019-12-28

American Journal of Engineering and Applied Sciences, Published online: 28 December 2019; doi:10.3844/ajeassp.2019.543.548

This paper presents a compact microstrip bandpass filter exhibiting a wide stopband, high selectivity and easily tunable passband. The filter comprises of asymmetric resonator structures, which are in...