Results 21 to 30 of about 22,134 (266)

Wind Power Performance Optimization Considering Redundancy and Opportunistic Maintenance

Mendel, 2018
In This paper the redundancy and imperfect opportunistic maintenance optimization of a multi-state weighted k-out-of-n system is formulated. The objective is to determine the k-out-of-n system redundancy level and the maintenance strategy which will ...
Hadi Abdollahzadeh Sangroudi
doaj   +1 more source

Availability Optimization of Two-dimensional Warranty Products Under Imperfect Preventive Maintenance

IEEE Access, 2021
For complex and durable products such as automobiles and construction machinery, the quality and reliability characteristics of these products become more and more complex.
Rongcai Wang, Zhonghua Cheng, Liqing Rong, Yongsheng Bai, Qian Wang   +4 more
doaj   +1 more source

Research on Pricing of Flexible Two-Dimensional Extended Warranty Considering Preventive Maintenance

Xibei Gongye Daxue Xuebao, 2019
Facing the uncertainty in transaction of two-dimensional extended warranty, a flexible pricing model is presented considering imperfect preventive maintenance combined with the degradation characteristics of item.

doaj   +1 more source

Preventive Maintenance Optimization of Electric Multiple Units Based on a Bi-Level Imperfect Maintenance Strategy

IEEE Access
A preventive maintenance (PM) optimization policy based on a bi-level imperfect maintenance strategy was proposed for electric multiple unit equipment subject to continuous degradation, consistent with actual PM situations.
Lv Xiong, Weixin Du, Jing Li, Zhilong Liu   +3 more
doaj   +1 more source

A Two-dimensional Maintenance Service Contract Considering Availability and Maintenance Cost

International Journal of Technology, 2023
In this paper, we study a two- dimensional Maintenance Service Contract (MSC) characterized by two limits (dimensions) of age and usage. It is considered that an agent offers a two-dimensional MSC by guaranteeing a certain level of equipment available
Nur Faizatus Sa’idah, Andi Cakravastia, Udjianna Sekteria Pasaribu, Bermawi Priyatna Iskandar   +3 more
doaj   +1 more source

Really Ageing Systems Undergoing a Discrete Maintenance Optimization

Mathematics, 2022
In general, a complex system is composed of different components that are usually subject to a maintenance policy. We take into account systems containing components that are under both preventive and corrective maintenance.
Radim Briš, Pavel Jahoda
doaj   +1 more source

An Optimal Imperfect Maintenance Policy for a Partially Observed System With Obvious Failures and Limited Repairs

IEEE Access, 2019
In this paper, we investigate an imperfect maintenance optimization problem for a multi-state, Markovian deterioration system with obvious failures under repair restriction based on those non-periodically collected sensor information.
Hongdong Fan, Zhaoqiang Wang, Jinying Wu, Shengjin Tang   +3 more
doaj   +1 more source

Results of the Childhood Cancer and Leukaemia Group's United Kingdom Relapsed Wilms Tumour Trial

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background The United Kingdom relapsed Wilms tumour (UKW‐R) trial aimed to improve the historically low survival rates after relapse of Wilms tumour (WT) through a prospective national risk‐stratified protocol. The trial also evaluated efficacy and toxicity of high‐dose melphalan.
Sucheta J. Vaidya, Veronica Moroz, Juliet Hale, Vesna Pavasovic, Rachel Hobson, Patricia Sartori, Daniel Saunders, Mark Powis, Gordan M. Vujanic, Stephen Baker, Kathy Pritchard‐Jones   +10 more
wiley   +1 more source

Research on imperfect condition-based maintenance strategy based on accelerated degradation process

Measurement + Control
To address the situation that the degraded system cannot be repaired as new and the degradation is accelerated after repair in engineering practice, an imperfect condition-based maintenance model is proposed based on the Gamma process by introducing the ...
Jintao Chen, Lina Ren, Jianhua Li
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source