Results 81 to 90 of about 9,082 (185)

An Improved Statistical Method for Calculating Lightning Overvoltages in HVDC Overhead Line/Cable Systems

open access: yesEnergies, 2019
HVDC cable systems connected to HVDC overhead lines are subject to fast front overvoltages emanating from the line when lightning strikes a shield wire (backflashover) or a pole conductor (shielding failure).
Oscar Lennerhag   +4 more
doaj   +1 more source

Reliability study on avionics: feasibility study to determine mean time between failure (MTBF)

open access: yes, 2020
No momento presente o mundo enfrenta um aumento na pressão para que os trabalhos se executem de modo mais rápido, melhor e mais barato, exigindo que os engenheiros prevejam com precisão a fiabilidade dos produtos. Nas fases iniciais do processo de design do produto, essas previsões precisas contribuirão não só para um produto mais robusto e fiável, mas
openaire   +1 more source

An overview of reliability growth models and their potential use for NASA applications [PDF]

open access: yes
An overview is provided of reliability growth literature over the past 25 years. This includes a thorough literature review of different areas of the application of reliability growth such as design, prediction, tracking/management, and demonstration ...
Safie, F. M., Taneja, V. S.
core   +1 more source

Markov Model-Based Reliability Analysis Considering the Redundancy Effect of Modular Converters

open access: yesIEEE Access
This paper uses a DAB converter and a non-isolated DC-DC converter as modules. It analyzes the differences in circuit characteristics and reliability due to the redundancy effect by combining them in series and parallel.
Jae-Seong Jo   +5 more
doaj   +1 more source

A Hybrid Fault Tree–Fuzzy Logic Model for Risk Analysis in Multimodal Freight Transport

open access: yesSystems
Multimodal freight transport systems, integrating maritime, rail, and road modes, play a vital role in modern logistics but face elevated operational, human, and environmental risks due to their complexity and interdependencies.
Catalin Popa   +3 more
doaj   +1 more source

Characterizing and Improving the Reliability of Broadband Internet Access

open access: yes, 2017
In this paper, we empirically demonstrate the growing importance of reliability by measuring its effect on user behavior. We present an approach for broadband reliability characterization using data collected by many emerging national initiatives to ...
Bischof, Zachary S.   +2 more
core  

Space station electrical power system availability study [PDF]

open access: yes
ARINC Research Corporation performed a preliminary reliability, and maintainability (RAM) anlaysis of the NASA space station Electric Power Station (EPS). The analysis was performed using the ARINC Research developed UNIRAM RAM assessment methodology and
Turnquist, Scott R., Twombly, Mark A.
core   +1 more source

Program management aid for redundancy selection and operational guidelines [PDF]

open access: yes
Although this criterion was developed specifically for use on the shuttle program, it has application to many other multi-missions programs (i.e. aircraft or mechanisms).
Davis, W. L., Frumkin, B., Hodge, P. W.
core   +1 more source

Results of expert judgments on the faults and risks with Autosub3 and an analysis of its campaign to Pine Island Bay, Antarctica, 2009 [PDF]

open access: yes, 2009
Probabilistic risk assessment is a methodology that can be systematically applied to estimate the risk associated with the design and operation of complex systems.
Brito, Mario P., Griffiths, Gwyn
core  

Device Reliability Analysis of NNBI Beam Source System Based on Fault Tree

open access: yesApplied Sciences
Negative Ion Source Neutral beam Injection (NNBI), as a critical auxiliary heating system for magnetic confinement fusion devices, directly affects the plasma heating efficiency of tokamak devices through the reliability of its beam source system.
Qian Cao, Lizhen Liang
doaj   +1 more source

Home - About - Disclaimer - Privacy