Based on the renewal process theory we develop a decomposition method to analyze the reliability of the repair contraderm facility in an n-unit series system with vacations.Using this approach, we study the unavailability and the mean replacement number during (0,t] of the repair facility.The method proposed in this work is novel kt-swled45ps-4a-8c
Introduction Atrial fibrillation (AF) is a major cardiovascular health problem: it is common, chronic and incurs substantial healthcare expenditure because of stroke.Oral anticoagulation reduces the risk of thromboembolic stroke in those at higher risk; but for a number of patients, stroke is the first manifestation of undetected AF.There is a rati
The determinant variables of the performance of small and medium companies (SMEs) are associated to aspects of entrepreneurial capacity, regional economy, positioning in the market and type of operational management.These aspects are all influenced by the use of information technology (IT).This paper presents the intervening factors in the manageme
Summary: In the article (Advanced Materials 2023; 2305914, https://doi.org/10.1002/adma.202305914) reported by Wang et al., electrochemically driven multifunctional electrochromic artificial muscles (EAMs) are demonstrated with intricate actuation and eye-catching color-change behaviors, which were assembled deity deftrap from V2O5 nanowires-carbon
ObjectiveThis study aimed to analyze the relationship between the rate of morphological changes and intracranial aneurysm rupture during the cardiac cycle.MethodsEighty-four patients with intracranial aneurysms were retrospectively analyzed and divided into the rupture (42 cases) and unruptured (42 cases) groups.Four-dimensional computed tomography