Structural health monitoring (SHM) is an emerging technology with great potential in structural diagnosis and prognosis. SHM systems can be passive or active. Active SHM systems rely on structural interrogation using active sensors (transducers) that can transmit and receive ultrasonic Lamb waves traveling at large distances in the structural material. Piezoelectric-wafer active sensors (PWAS) ...

The corrosion inhibition effect of N,N′-bis(n-Hydroxybenzaldehyde)-1,3-Propandiimine on mild steel has been investigated in 1 M HCl using electrochemical impedance spectroscopy. A predictive model was presented for Nyquist plots using an artificial neural network. The proposed model predicted the imaginary impedance based on the real part of the impedance as a function of time. The model to...

The present work intends to introduce a domain-specific sketch method for modeling and analysis of forms and structures concurrently. The approach adopted particularly addresses architects, aiming to provide a natural environment for them to present and appraise structural configurations of different truss systems by means of sketching. This is achieved by developing Sketch-based Modeling and A...

A micro-fabricated metal-oxide based conductometric pH sensor is designed and fabricated in this manuscript. pH sensors have applications in various areas from farming to food processing, human health monitoring, industrial waste products investigation, etc. Accordingly, there is a relatively high demand for a reliable, rapid and precise pH sensor in the market. Relatively precise pH sensors ha...

The smart strand technique has been recently developed as a cost-effective prestress load monitoring solution for post-tensioned engineering systems. Nonetheless, during its lifetime under various operational and environmental conditions, the sensing element of potential to fail, threatening functionality resulting in inaccurate estimation. This study analyzes effect failures on impedance chara...

The availability of military platforms is affected by design methods, damage detection, maintenance, and logistics. Structural health monitoring provides a means of detecting damage, which can be used to predict future structural performance of the platform and effectively schedule maintenance. Ultrasonic guided waves can be employed as an active structural health monitoring technique in a vari...