Timber buildings might incur damages after a long service, because column foot damage affects the structural performance under the continued use.In this paper, six straight-tenon joint wood frame specimens were prepared with varying degrees of two Trucker Hat different damage conditions at a scale of 1 : 3.52.To obtain failure mode and hysteresis p
In allusion to solve the issue of fault diagnosis for bearing and other rotatory machinery, a technique based on fined-grained multi-scale Kolmogorov entropy and whale optimized multi-class support vector machine (abbreviated as FGMKE-WOA-MSVM) is proposed.Firstly, vibration signals are decomposed by fine-grained multi-scale decomposition, and the
This article reviews the technical applicability of nanofiltration membrane process for the removal of nickel, lead, and copper ions from industrial wastewater.Synthetic industrial wastewater samples containing Ni(II), Pb(II), and Cu(II) ions at various concentrations (50, 100, 150 and 200 ppm), under different pressures (1, 2, 3 and 4 bar), temper
Reactive jamming attacks have been considered as one of the most lethal and disruptive threats to subvert or disrupt wireless networks since they attack the broadcast nature of pca mcc transmission mediums by injecting interfering signals.Existing countermeasures for the Internet against reactive jamming attacks, i.e., channel surfing or frequency
Objectives The aim was to evaluate dentinal crack formation after root canal preparation with ProTaper Next system (PTN) with and without a glide path.Materials and Methods Forty-five mesial roots of mandibular first molars were selected.Fifteen teeth were left unprepared and served as controls.The experimental groups consist of mesiobuccal and mes