In the paper two methods for measuring changes in stress for slender steel structure are
presented. The first method consists of surveying the inclination of the tower mast and jib by …

This article presents the application of a self-excited acoustic SAS system for non-destructive
testing (NDT) for roof-bolt housings in laboratory and real mine conditions. The proposed …

This paper presents the Self-excited Acoustical System (SAS) in elastic construction stress
change measurement. The system is based on the acoustical autoresonance phenomena …

This article introduces a novel methodology employing deep-learning neural networks to
estimate Lyapunov functions in dynamic systems accurately. Unlike traditional parametric …

Health monitoring of rock bolts can indirectly indicate the state of rock which is crucial for
mining safety. This paper presents an innovative application of the Self-excited Acoustical …

The article presents a complete calibration procedure of a drilling rig mechatronic boom with
eight degrees of freedom, designed to work in underground metal ore mines. Such a …

A common method of conducting non-destructive testing of the technical condition of
mechanical components is to use the measurement of acoustic waves generated during the …

Autodyne effect is an improvement to radio signal amplification using the light bulb type
amplifier. By adjusting the tuning of this tuned circuit, Armstrong was able to dramatically …

Drilling and bolting rigs are the primary machines used in modern hard rock mining. Due to
the necessity of excavating mineral resources from ores lying in more and more difficult …