Cracks affect the robustness and adaptability of various infrastructures, including buildings, bridge piers, pavement, pipelines. Therefore, reliability automated crack detection are essential. In this study, we conducted image segmentation using datasets by applying advanced architecture U-Net. First, collected integrated from prior studies, cracks in buildings pavements. For effective localiz...

Visual inspection of a steel truss railway bridge revealed multiple fatigue cracks on the top member truss, mainly attributed to high impact loads crossing wheels over jointed tracks bridge. The proposal replace track with continuously welded rails (CWR) raised number issues regarding thermal interaction and bridge, as experiences extreme temperature variations. Incorporation longitudinal restr...

this paper addresses an experimental investigation in the hydrodynamic behavior of a modified slotted sieve tray. slotted sieve tray (push valve sieve tray) is a sieve tray that the push valves have been utilized on the tray deck to eliminate liquid gradients and non-uniformity of liquid distribution on the tray. the air-water system was used in an industrial scale experimental rig with an inte...

background : prosthetic valve endocarditis (pve) is an important cause of morbidity and mortality associated with heart valve replacement surgery. the aim of the present study was to describe the early outcome of treatment in patients with pve in a single center. methods : the data of all the episodes of pve registered at our institution between 2002 and 2007 were collected and analyzed retrosp...

The finite element alternating method is an attractive and efficient method for calculating the stress intensity factor of cracks emanating from fastener holes such as the problem of multiple site damage (MSD) at the fuselage skin of aging aircraft. While the alternating method has been used to solve various engineering problems in assessing the structural integrity of aging aircraft, this meth...

Purpose This paper presents a new automated method to predict condition state rating in bridge inspection. The method is designed to identify proper risk-based inspection interval by neural networks and image processing techniques. Method The surface defect considered in this research work is the loss of surface portion (scaling) of concrete due to freezethaw action based on Ontario Structure I...

introduction cerebral haemorrhage could complicate post operative course after cardiac surgery, especially after multiple mechanical valves replacement needing for anticoagulation. the interruption of vitamin k antagonists in this cases, to avoid the enhancement of the cerebral haemorrhage, can be performed with reasonable safety. case presentation we report the case of a patient who underwent ...

Past research has shown that as skewed bridges change temperature, additional lateral movement or forces will occur along with the elongation of bridge. Even though past documented this behavior, movements semi-integral bridge superstructure associated temperature effects on skewness have not been well predicted. In study, seasonal a 24-year-old caused by abutment investigated conducting series...

The number of bridges in operation has increased. Along with the increase length time are service, structural safety also decreases. Bridge substructure is a key component bridges, but there few studies on management and identification water bridge damage. Deep learning focus research field target detection, this document lightens YOLO-v4 to achieve precise intelligent determination concrete cr...

<p>A prestressed concrete bridge was built in 1963 with BBRV cables. It has three spans and a total length of 134.8 m. Due to mining activities the loaded trucks weight 90 ton during 2012-2014 from 2019. Crack development been monitored manually 2020 strain gauges LVDTs. Cracks normally vary between 0.1 0.3 mm width grow time. In November some on showed alarming growth closed for traffic....