Results 11 to 20 of about 2,431,600 (241)

A Reliability Assessment Method for Complex Systems Based on Non-Homogeneous Markov Processes [PDF]

open access: yesSensors
The Markov method is a common reliability assessment method. It is often used to describe the dynamic characteristics of a system, such as its repairability, fault sequence and multiple degradation states.
Xiaolei Pan   +4 more
doaj   +2 more sources

Optimal Robot Motion for Accelerated Life Testing of a 6-DoF Industrial Robot

open access: yesApplied Sciences, 2020
In order to verify the reliability of drive components for industrial robots, component-level life tests must be accompanied by a system-level life test using actual robots in which predefined robot motions are repeated throughout the test.
Seungjin Yoo   +3 more
doaj   +1 more source

A Comprehensive Review on Material Compatibility and Safety Standards for Liquid Hydrogen Cargo and Fuel Containment Systems in Marine Applications

open access: yesJournal of Marine Science and Engineering, 2023
As the maritime industry’s emphasis on sustainable fuels has increased, liquid hydrogen (LH2) has emerged as a promising alternative due to its high energy density and zero-emission characteristics.
Myung-Sung Kim, Kang Woo Chun
doaj   +1 more source

Stratejik Planlama Süreci Kişisel-Değerlendirme Ölçeği (SPSKDÖ): geçerlik ve güvenirlik çalışması

open access: yesSpormetre Beden Eğitimi ve Spor Bilimleri Dergisi, 2015
Bu çalışma ile Stratejik Planlama Süreci Kişisel-Değerlendirme Ölçeği’nin (Strategic Planning Process Self-Assessment Questionaire-SPSAQ, Strategic Futures Consulting, Inc., 2013) geçerlik ve güvenirlik çalışmasının yapılarak, Türkçe’ye uyarlanması ...
Özgül Sema Alay   +2 more
doaj   +1 more source

Research on the optimal configuration of an electricity-gas multi-energy storage system of the regional integrated energy system

open access: yesZhejiang dianli, 2023
As a key component of a power system, an energy storage system plays important roles in peak regulation, frequency modulation, new energy consumption, and emergency power supply.
ZHANG Yu   +5 more
doaj   +1 more source

The standard error of measurement is a more appropriate measure of quality for postgraduate medical assessments than is reliability: an analysis of MRCP(UK) examinations [PDF]

open access: yes, 2010
Background: Cronbach's alpha is widely used as the preferred index of reliability for medical postgraduate examinations. A value of 0.8-0.9 is seen by providers and regulators alike as an adequate demonstration of acceptable reliability for any ...
DJ Weiss   +15 more
core   +3 more sources

A Framework for Reliability Assessment in Expansion Planning of Power Distribution Systems

open access: yesEnergies, 2022
This article proposes a framework that uses analytical assessment of reliability to guide the expansion planning of power distribution systems (PDS) considering reliability criteria.
Gustavo L. Aschidamini   +4 more
doaj   +1 more source

Measuring Motivation Orientation and School Readiness in Children Served by Head Start [PDF]

open access: yes, 2019
Currently, the most widely used direct assessment of motivation orientation for preschoolers has little to no research on its reliability and validity. This study examined the test–retest reliability and concurrent and predictive validity of this direct ...
Bustamante, Andres S   +1 more
core   +1 more source

The Telehealth Skills, Training, and Implementation Project: An evaluation protocol [PDF]

open access: yes, 2015
External stabilization is reported to improve reliability of hand held dynamometry, yet this has not been tested in burns. We aimed to assess the reliability of dynamometry using an external system of stabilization in people with moderate burn injury and
Barnett, Stephen   +14 more
core   +4 more sources

Reliability verification of an existing reinforced concrete slab [PDF]

open access: yes, 2018
The submitted contribution provides background information on the principles accepted in the CEN Technical Specification (TS). The application of the verification methods provided in the TS is clarified by an assessment of a reinforced concrete ...
Holický, Milan, Jung, Karel
core   +1 more source

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