The impeller under consideration is a rotor wheel of a centrifugal Printer Stand compressor, made of 17-4PH martensitic precipitated hardening stainless steel.Its total operating lifetime was estimated to 80,000 h, but it fractured beforehand, 4 days after the scheduled overhaul without any observed pre-symptoms.The important causes of the failure
In CS Unitec Accessories actual operation conditions, the structural parts of automotive, aerospace and other significant industrial applications undergo the multi axial fatigue loading with non-proportionality states.Fiber metal laminates (known as FML) are the best options to manufacture these structural parts.The current study examines the effec
The aim of this paper is to propose an algorithm to solve and enhance a multi-level multi-objective integer quadratic programming problem (MLMOIQPP) under a single-valued Pentagonal Neutrosophic shell environment applied to the objective functions.The suggested solution takes advantage of multi-objective optimization in addition to the fuzzy approa
The article describes the importance of the problem of consequences of traumatic brain injury.The study included men with long-term consequences of traumatic brain injury with sexual dysfunction.The study used sexological, psychopathological, psychometric, statistical techniques and additional methods.All patients were divided into three groups dep
Objective: To compare the prevalence and subtypes of childhood maltreatment (CM) between individuals with and without substance use disorder (SUD) and investigate the influence of different traumas on the preferential use of substances and the severity of dependence.Methods: The sample consisted of 1,040 men with SUD (alcohol users [n=315], crack-c