Results 111 to 120 of about 80,393 (300)

Distribution transformer lifetime analysis in the presence of demand response and rooftop PV integration [PDF]

open access: yes, 2017
Many distribution transformers have already exceeded half of their expected service life of 35 years in the infrastructure of Western Power, the electric distribution company supplying south west of Western Australia, Australia.
Behi, Behnaz   +7 more
core   +1 more source

Formal and Informal Social Care in People With Rheumatic and Musculoskeletal Diseases: A Cross‐Sectional Multicenter Survey

open access: yesArthritis Care &Research, EarlyView.
Objective Rheumatic and musculoskeletal diseases (RMDs) are leading causes of physical disability, necessitating support with activities of daily living. This study describes social care received by patients with RMDs in two disparate regions of England: Salford (urban) and Norfolk (rural).
Mehreen Somro   +6 more
wiley   +1 more source

""Counting Your Customers" One by One: A Hierarchical Bayes Extension to the Pareto/NBD Model" [PDF]

open access: yes
This research extends a Pareto/NBD model of customer-base analysis using a hierarchical Bayesian (HB) framework to suit today's customized marketing. The proposed HB model presumes three tried and tested assumptions of Pareto/NBD models: (1) a Poisson ...
Makoto Abe
core  

Cumulative Social Disadvantage and Disease Activity in Juvenile Idiopathic Arthritis: A Childhood Arthritis and Rheumatology Research Alliance Registry Study

open access: yesArthritis Care &Research, EarlyView.
Objective Social determinants of health (SDOH) contribute to juvenile idiopathic arthritis (JIA) disparities, but most studies have assessed SDOH independently rather than cumulatively across individual, family, and neighborhood levels. Using a socioecological framework, we investigated the relationship among cumulative social disadvantage ...
William Daniel Soulsby   +448 more
wiley   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

Strength analysis and lifetime calculation of the firing pin in the pistol AREX DELTA

open access: yes, 2021
Diplomska naloga obravnava postopke, ki so potrebni, da lahko približno napovemo dobo trajanja udarne igle pištole, ki je primerljiva z rezultati mehanskih eksperimentov.
Rot Weiss, Erik
core  

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera   +8 more
wiley   +1 more source

Underwater Wet Electrical Connector Seal Life Prediction

open access: yesShiyou jixie, 2017
Underwater wet electrical connector is a connecting device used to connect underwater equipment in the working environment of sea water, oil and drilling fluid. Due to its harsh working environment, its sealing technology is of great importance.
Hu Dong   +4 more
doaj  

Bearing clearance test and lifetime analysis for EMU traction motor

open access: yes机车电传动, 2022
The mechanical load is the only factor of influence considered in the traditional bearing lifetime prediction algorithm. However, for the traction motor of the electric multiple units (EMUs) in actual working conditions, its bearing is also subject to ...
GENG Min   +4 more
doaj  

Calculation of positron lifetime of compound semiconductors

open access: yesActa Physica Sinica, 2010
On the basis of of local density approximation (LDA) and general gradient approximation (GGA), positron annihilation information has been calculated for five types of compound semiconductors, which are ZnO, GaN, GaAs, SiC and InP. The calculated information includes distribution of positron density, distribution of positron annihilation rate density ...
null Chen Xiang-Lei   +4 more
openaire   +1 more source

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