Results 71 to 80 of about 4,754,770 (321)

Optimized Time–Frequency Analysis for Induction Motor Fault Detection Using Hybrid Differential Evolution and Deep Learning Techniques

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
Workflow of the parameter optimization process for ITSC fault detection, applying Differential Evolution optimization and the Smooth Pseudo Wigner‐Ville Distribution for signal processing. The optimized parameters are then used in the failure identification pipeline, which combines the signal processing with a YOLO‐based architecture for fault severity
Rafael Martini Silva   +4 more
wiley   +1 more source

The effect of sport in online dating: evidence from causal machine learning

open access: yesHumanities & Social Sciences Communications
Online dating emerged as a key instrument for human mating. This research investigates the effect of sports activity on human mating by exploiting a unique data set from an online dating platform.
Daniel Boller   +2 more
doaj   +1 more source

Superfluous amylase/lipase testing at a tertiary care hospital: a retrospective study

open access: yesAnnals of Saudi Medicine, 2019
BACKGROUND: Measuring both serum amylase and lipase in the setting of acute pancreatitis is not recommended and monitoring changes in amylase and lipase levels after diagnostic results is of little added value.
Ahmed S. Aljomah, Muhammad M. Hammami
doaj   +1 more source

Data‐Driven Distributed Safe Control Design for Multi‐Agent Systems

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This paper presents a data‐driven control barrier function (CBF) technique for ensuring safe control of multi‐agent systems (MASs) with uncertain linear dynamics. A data‐driven quadratic programming (QP) optimization is first developed for CBF‐based safe control of single‐agent systems using a nonlinear controller. This approach is then extended to the
Marjan Khaledi, Bahare Kiumarsi
wiley   +1 more source

The use of empirical research in bioethics: a survey of researchers in twelve European countries

open access: yesBMC Medical Ethics, 2017
Background The use of empirical research methods in bioethics has been increasing in the last decades. It has resulted in discussions about the ‘empirical turn of bioethics’ and raised questions related to the value of empirical work for this field ...
Tenzin Wangmo, Veerle Provoost
doaj   +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

Determination of Muscone in Rats Plasma following Oral Administration of Artificial Musk: Using of Combined Headspace Gas Chromatography-Mass Spectrometry

open access: yesJournal of Spectroscopy, 2014
To develop an analytical method for determination of plasma concentrations of muscone in rats following oral administration of artificial musk, with the aim of investigating the pharmacokinetic profile of artificial musk.
Qibiao Wu   +5 more
doaj   +1 more source

Micropleated Nanofibrous Filters for High‐Efficiency Submicron Aerosol Filtration: A Comparative Study with Chemical, Biological, Radiological, and Nuclear Gas Mask Filters

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents micropleated filters manufactured by needleless electrospinning. Nanofibers are deposited onto uniaxially pre‐stretched substrates that contract upon release, forming densely packed micropleats. This architecture increases effective surface area without enlarging the filter size, achieving quality factors comparable to those of ...
Aleksandr Fadeev   +6 more
wiley   +1 more source

From heartbeat to data—using wearable fitness trackers as an affordable approach to assess teachers’ stress

open access: yesFrontiers in Education
IntroductionPast research on physiological indicators of teacher stress often had to rely on expensive and obtrusive assessment methods. Modern fitness trackers represent a non-invasive and convenient alternative.MethodsThis study investigated the use of
Mandy Klatt   +5 more
doaj   +1 more source

Empirical Research Design [PDF]

open access: yes, 2021
AbstractThe experiment consisted of three parts: the login-stage, the experiment and an after-survey. The experiment starts with 6 single-player Tower of Hanoi games to enable learning and to induce routine, referred to as “individual decision-making expertise in routine-strategy”.
openaire   +1 more source

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