Results 41 to 50 of about 1,597,070 (284)

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

open access: yesMeasurement + 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

A Transformer Maintenance Interval Optimization Method Considering Imperfect Maintenance and Dynamic Maintenance Costs

open access: yesApplied Sciences
As one of the most critical components of the power grid system, transformer maintenance strategy planning significantly influences the safe, economical, and sustainable operation of the power system. Periodic imperfect maintenance strategies have become
Jianzhong Yang   +6 more
doaj   +1 more source

Clustering of Condition-Based Maintenance Activities with Imperfect Maintenance and Predication Signals [PDF]

open access: yesInternational Journal of Industrial Engineering and Production Research, 2022
Condition-based maintenance (CBM) is a well-known maintenance cost minimization strategy in which maintenance activities are performed based on the actual state of the system being maintained.
Hasan Rasay   +2 more
doaj  

Research on a Comprehensive Maintenance Optimization Strategy for an Offshore Wind Farm

open access: yesEnergies, 2021
Offshore wind is considered a crucial part in the future energy supply. However, influenced by weather conditions, the maintenance of offshore wind turbine system (OWTs) equipment is challenged by poor accessibility and serious failure consequences.
Yang Lu, Liping Sun, Yanzhuo Xue
doaj   +1 more source

Serum Myonectin Levels Are Positively Associated With Physical Function and Lower Frailty‐Related Limitation in Maintenance Hemodialysis Patients: A Cross‐Sectional Study

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Maintenance hemodialysis (MHD) patients frequently suffer from frailty, characterized by reduced physical function and poor prognosis. Myokines, such as myonectin, secreted by muscle, are emerging regulators of systemic health. This study investigated the relationship between serum myonectin, adipokines (adiponectin, omentin), and ...
Kenichi Kono   +7 more
wiley   +1 more source

A Historical Survey of Corrective and Preventive Maintenance Models with Imperfect Inspections: Cases of Constant and Non-Constant Probabilities of Decision Making

open access: yesAerospace
Maintenance strategies play a crucial role in ensuring the reliability and performance of complex systems. Imperfect inspections, characterized by the probabilities of false positives and false negatives, significantly impact the effectiveness of ...
Vladimir Ulansky, Ahmed Raza
doaj   +1 more source

Preventive maintenance strategy of electric multiple unit critical equipment based on replacement repair

open access: yes机车电传动, 2022
Considering that the entire electric multiple unit (EMU) needs to be withdrawn from service for carrying out preventive maintenance (PM) of the critical equipment, leading to an increase to downtime loss, the concept of replacement repair is proposed in ...
XIONG Lü, LIU Zhilong
doaj  

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

An improved opportunity maintenance model of complex system

open access: yesAdvances in Mechanical Engineering, 2019
To solve the problems of multiple parts, high cost of disassembly, and imperfect maintenance in multi-component complex systems, an opportunistic maintenance model of multi-component complex systems based on a time threshold is proposed in this article ...
Qinghe Yuan   +3 more
doaj   +1 more source

Optimization of equipment performance guarantee strategy based on imperfect periodic preventive maintenance [PDF]

open access: yesAIP Advances
Performance guarantee strategy is a procurement method oriented toward achieving equipment performance goals. For two-dimensional warranty equipment employing imperfect periodic preventive maintenance (PM), this study establishes a warranty cost and ...
Xinjian Gao   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy