Results 101 to 110 of about 10,817,841 (245)

Discrete-continuous analysis of optimal equipment replacement [PDF]

open access: yes
In Operations Research, the equipment replacement process is usually modeled in discrete time. The optimal replacement strategies are found from discrete (or integer) programming problems, well known for their analytic and computational complexity.
YATSENKO, Yuri, HRITONENKO, Natali
core  

Laparoscopic hysterectomy versus open abdominal hysterectomy for women with a benign gynaecological condition: the LAVA RCT

open access: yesHealth Technology Assessment
Background The comparative rates of major complications and recovery times between laparoscopic hysterectomy and abdominal hysterectomy for benign gynaecological conditions remain uncertain.
T Justin Clark   +15 more
doaj   +1 more source

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam   +2 more
wiley   +1 more source

Consistência entre medidas antropométricas em inquéritos nacionais Consistencia entre medidas antropométricas en pesquisas nacionales Consistency between anthropometric measures in national surveys

open access: yesRevista de Saúde Pública, 2013
OBJETIVO: Analisar a consistência entre valores de altura e peso obtidos por mensuração direta e por relato em inquéritos nacionais contemporâneos. MÉTODOS: Selecionamos o grupo de 20 a 39 anos na Pesquisa de Orçamentos Familiares (POF) e do sistema de ...
Wolney Lisboa Conde   +3 more
doaj  

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Development of an integrated manufacturing performance measurement and evaluation framework [PDF]

open access: yes, 2000
With the end of the Cold War and the subsequent reduction in defence spending, the Taiwanese defence industry has encountered great difficulties. Recently, the Government announced that at the end of 2006, all military plants should move from the ...
Huang, Kuang-Chung
core   +1 more source

Use of accelerometry to measure physical activity in adults and the elderly Actividad física en adultos y ancianos evaluados por acelerometría Actividade física em adultos e idosos avaliados por acelerometria

open access: yesRevista de Saúde Pública, 2012
OBJECTIVE: To review the use of accelerometry as an objective measure of physical activity in adults and elderly people. METHODS: A systematic review of studies on the use of accelerometty as an objective measure to assess physical activity in adults ...
Teresa Bento   +3 more
doaj  

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

An expert system for material handling equipment selection [PDF]

open access: yes
Manufacturing Systems are subject to increasingly frequent changes in demand in terms of number and type of products they produce. It is impractical to continually reconfigure the facilities, but it is possible to modify the material handling ...
Al-Meshaiei, Eisa Abdullah Eisa S.
core  

NFDI MatWerk Ontology (MWO): A BFO‐Compliant Ontology for Research Data Management in Materials Science and Engineering

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the NFDI‐MatWerk Ontology (MWO), a Basic Formal Ontology‐based framework for interoperable research data management in materials science and engineering (MSE). Covering consortium structures, research data management resources, services, and instruments, MWO enables semantic integration, Findable, Accessible, Interoperable, and ...
Hossein Beygi Nasrabadi   +4 more
wiley   +1 more source

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