Sciences de l'ingénieur et technologies

Rapport

Support to Ethiopian Rail Sector : Strengthening the Capacity of the Ministry of Transport to Implement Technical and Safety Regulation - Intermediate Report

2021 Open Access

Article scientifique

Standard method for microCT-based additive manufacturing quality control 5: witness specimen analysis v2

MicroCT is a well known technique and is often used for non-destructive analysis of parts produced by additive manufacturing. This …

2019 Open Access

Article scientifique

المشاهدة التلفزيونية في زمن تقارب الميديا .. تغير في الطقوس وتحول في الممارسات

يرتكز اهتمامنا في هذه الدراسة على التحوّلات التي يمكن أن تطرأ على عادات استخدام المحتويات التلفزيونية وأنماطها في ظل وجود …

2019 Open Access

Article scientifique

SAWEA's WindAc 2019 Conference Editorial

This academic peer-reviewed journal is an open access journal and publishes articles on technical, economic, policy, environmental and social aspects …

2019 Open Access

Article scientifique

Energy analysis of Timber Log Processing in Nigerian Sawmill

Logging encompasses all activities involved in the processing of fully developed tree for production of finished and intermediate planks of …

2019 Open Access

Article scientifique

Source-All-Around Tunnel Field-Effect Transistor (SAA-TFET): Proposal and Design

In this paper, a new source-all-around tunnel field-effect transistor (SAA-TFET) is proposed and investigated by using TCAD simulation. The tunneling …

2019 Open Access

Article scientifique

Corrigendum: Multilayer film thickness measurement using ultrafast terahertz pulsed imaging (2019 J. Phys. Commun. 3 035013)

2019 Open Access

Article scientifique

Quasi-Lumped Element Implementation of a Wide-Band Dual-Band Filter Based on Reactance Transformations

The synthesis and design of a quasi-lumped element dual-band filter is presented for a radiometry application. Band 1 is from …

2019 Open Access

Article scientifique

Perturbation Of Diminutive Solar Irradiance And Extreme Semiconductor Temperature On The Output Current And Voltage: The Translation Of Electrical Characteristics Into Thermal Characteristics

Perturbation of diminutive solar irradiance and extreme semiconductor temperature on the responsive; output current and output voltage shows the stimulus …

2019 Open Access

Article scientifique

Controlled Brushless De-Excitation Structure for Synchronous Generators

The main weakness of the brushless excitation system in a synchronous generator (SG) is the slow de-excitation response obtained during …

2019 Open Access

Article scientifique

Assessment of logistical support for road maintenance to manage road accidents in Vhembe district municipalities

This article discusses the problems of logistical support for road maintenance to manage road accidents in Vhembe district municipalities. A …

2019 Open Access

Article scientifique

Ultrasonic Trilateration Methods for Low-Cost Indoor Positioning

Trilateration is a process where distances to known control points or beacons can be used as inputs to algorithms to …

2019 Open Access

Article scientifique

GENERAL SOLUTION OF ELASTICITY PROBLEMS IN TWO DIMENSIONAL POLAR COORDINATES USING MELLIN TRANSFORM

Abstract In this work, the Mellin transform method was used to obtain solutions for the stress field components in two …

2019 Open Access

Article scientifique

Low-profile Slotted SIW Cavity Backed Antenna for Frequency Agility

The agile frequency antennas are widely used for wireless communication systems. This paper studies and designs a low-profile SIW antenna …

2019 Open Access

Article scientifique

Design of a New Radio-Frequency Switch Topology with Very Low Polarization Current

Embedded systems are generally powered by batteries, characterized by a limited duration of electrical energy storage. For that, low power …

2019 Open Access

Article scientifique

Palynostratigraphy, palaeoenvironments and kerogen assessment of Mid-Cretaceous Ezeaku Shales succession from River Obey in Umudi-Lokpanta, Abia State, Southeastern Nigeria

There have been disparities about the age of the Eze-Aku Formation, Anambra Basin south- eastern Nigeria. Eleven surface samples of …

2019 Open Access

Article scientifique

Participation restrictions and vocational rehabilitation needs experienced by persons with a unilateral lower limb amputation in the Western Cape, South Africa

Background: Vocational rehabilitation (VR) aims to rehabilitate a person with an amputation back into actively participating in society. Even though …

2019 Open Access

Article scientifique

Vadose zone infiltration and its implication for groundwater contamination risk assessment in Siloam village, Limpopo province, South Africa

Risk assessment methods and approaches are useful for environmental planning and decision-making when dealing with risk identification and reduction in …

2019 Open Access

Article scientifique

Experimental diagnosis of multiple faults on a rotor-stator system by fast Fourier transform and wavelet scalogram

This paper presents the recent application of the scalogram of Continuous Wavelet Transform (CWT) as a vibration monitoring and signal …

2019 Open Access

Article scientifique

Vibration of FG viscoelastic nanobeams due to a periodic heat flux via fractional derivative model

In this work, the vibrations of viscoelastic functionally graded Euler–Bernoulli nanostructure beams are investigated using the fractional-order calculus. It is …

2019 Open Access