Volume 15, Issue 3 (2022) | American Journal of Engineering and Applied Sciences

Testing Composite Valve Covers for Reciprocating Engine Applications

Peng Hao Wang — 2022-08-12

American Journal of Engineering and Applied Sciences, Published online: 12 August 2022; doi:10.3844/ajeassp.2022.178.188

The use of composites within the aeronautical field is not limited to airframe applications and includes powerplant components in reciprocating engines. To add to the research body in this area, the p...

A Cartesian Regulator for an Ideal Position-Servo Actuated Didactic Mechatronic Device: Asymptotic Stability Analysis

Gabriela Zepeda — 2022-09-16

American Journal of Engineering and Applied Sciences, Published online: 16 September 2022; doi:10.3844/ajeassp.2022.189.196

Position-servo actuators are by themselves feedback mechatronics systems modeled by Ordinary Differential Equations (ODE). From a technological point of view, position-servos are based upon an electri...

Singularity Analysis of a Hybrid Serial-Cable Driven Planar Robot

Samir Lahouar — 2022-09-26

American Journal of Engineering and Applied Sciences, Published online: 26 September 2022; doi:10.3844/ajeassp.2022.197.208

In this study, we address the problem of singularities of a hybrid serial-cable driven planar robot. Based on an analytical kinetostatic analysis three types of singularities are determined, i.e., ser...

Study of Mutual Coupling of Typical Commercial UHF RFID Tags in a High-Density Environment

Gbamélé Konan Fernand — 2022-10-14

American Journal of Engineering and Applied Sciences, Published online: 14 October 2022; doi:10.3844/ajeassp.2022.209.219

In the context of high-density passive UHF (Ultra High Frequency) RFID (Radio Frequency Identification) tag technology, the problem of mutual coupling has to be taken into account as one of the perfor...

An Intelligent Approach to Develop, Assess and Optimize Energy Consumption Models for Air-Cooled Chillers using Machine Learning Algorithms

Mostafa Tahmasebi — 2022-11-08

American Journal of Engineering and Applied Sciences, Published online: 8 November 2022; doi:10.3844/ajeassp.2022.220.229

The building sector accounts for more than 70% of the total electricity use. Chillers consume more than 50% of electrical energy during seasonal periods of building use. With the growth of the buildin...