A welding robot is an advanced piece of machinery in industry, especially in the field of industrial automation. As a complex system, it has a high failure probability because it manipulates, controls and performs complicated objects and tasks. Therefore, more attention has recently focused on the reliability of a welding robot. Reliability is very important because its performance will affect ...

The Energy Institute (EI) has supported and co-ordinated an oil and gas industry project to investigate potential measures for the ageing effects on Safety Critical Elements (SCEs) as defined by the offshore safety regulations Prevention of Fire and Explosion, and Emergency Response, (PFEER), and Design and Construction etc. (DCR). This investigation has led to a measurement method of business ...

Today, billions of dollars are being spent annually world wide to develop, manufacture, and operate transportation system such trains, ships, aircraft, and motor vehicles. Around 70 to 90 percent of transportation crashes are, directly or indirectly, the result of human error. In fact, with the development of technology, system reliability has increased dramatically during the past decades, whi...

Material and methods To assess efficacy and safety of PIs for procedural pain in neonate, a literature search covering the period 20002015 via Medline and Cochrane Library database, was undertaken. PIs were evaluated in relation to intubation (INT), mechanical ventilation (MV)and postoperative analgesia (POp) in preterm and fullterm infants. Efficacy of PIs in controlling procedural pain and di...

Radical Maintenance (RM) takes the root causes of failures as executive objects to make maintenance decisions. A Root Cause Analysis (RCA) is carried out on the function failure of equipment to performRMand to create a maintenance plan using the combined methods of Failure Mode, Effects and Criticality Analysis (FMECA), and Fault Tree Analysis (FTA). Evaluation criteria andmatrixes of criticali...

In Systems Engineering Verification and Testing for Reliability and Safety are the most complex, error-prone and expensive tasks. This paper explains how Model Based Systems Engineering Techniques and Methodologies, powered by SysML, can facilitate Agility in Design for Reliability and Safety of Mission-Critical Systems in several Industries like Aerospace, Medical, Automotive, Transportation. ...

Um die oft hohen Sicherheitsanforderungen eingebetteter Systeme (im Sinne von Safety) zu gewährleisten, werden bei ihrer Entwicklung sowohl dynamische Testverfahren als auch statische Sicherheitsanalysen eingesetzt. Für den Test bieten sich insbesondere risikobasierte Ansätze an, da sie sicherstellen, dass solche Teile bzw. Anforderungen des Testobjektes früher und intensiver getestet werden, d...

a r t i c l e i n f o Keywords: Failure mode and effects analysis Data envelopment analysis Overall risks Risk priority ranking Failure mode and effects analysis (FMEA) is a method that examines potential failures in products or processes and has been used in many quality management systems. One important issue of FMEA is the determination of the risk priorities of failure modes. In this paper ...

While use of LEDs in fiber optics and lighting applications is common, their use in medical diagnostic applications is very rare. Since the precise value of light intensity will be used to interpret patient results, understanding failure modes is very important. We used the Failure Modes and Effects Criticality Analysis (FMECA) tool to identify the critical LED failure modes. Once the critical ...

Results In the full sample of participants, regression analyses adjusting for multiple childhood factors (including socioeconomic status, IQ, behavioural problems, and medical conditions) indicated that the number of pack-years smoked was higher among individuals with less than high school education [rate ratio (RR)1⁄4 1.58, confidence interval (CI)1⁄4 1.31, 1.91]. However, in the sibling fixed...