Results 41 to 50 of about 75,602 (180)

Modified detrended fluctuation analysis based on empirical mode decomposition

open access: yes, 2009
Detrended fluctuation analysis (DFA) is a simple but very efficient method for investigating the power-law long-term correlations of non-stationary time series, in which a detrending step is necessary to obtain the local fluctuations at different ...
Alessio   +53 more
core   +1 more source

The DFA House

open access: yesAssembly Automation, 1993
The assembly is often a weak link in the production process. It is an enterprise activity which is responsible for a substantial part of the production costs and the throughput time. Robot assembly systems in addition offer legitimate possibilities to rationalize the assembly activities, because of the increasing product diversity, and the more severe ...
openaire   +2 more sources

Medial parapatellar surgical approach leads to greater loss of postural sway complexity compared to mid‐vastus approach in women undergoing total knee arthroplasty

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose Total knee arthroplasty (TKA) is associated with acute postoperative effects that increase the risk of falls. These effects differ between the medial parapatellar (PP) and mid‐vastus (MV) surgical techniques but have not been evaluated in terms of postural sway complexity.
Vasileios Mylonas   +5 more
wiley   +1 more source

Dynamic coronal plane knee alignment: Femoral anatomy determines kinematic curve morphology, tibial anatomy determines curve position

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose A single hip–knee–ankle angle (HKA) angle does not reflect the biomechanics of native, arthritic or prosthetic knees. Since HKA varies throughout flexion, dynamic coronal alignment is best represented by a kinematic curve plotting HKA against the range of motion.
Petros Ismailidis   +3 more
wiley   +1 more source

Lions as Bone Accumulators? Exploring Multi‐Predator Contributions to the Olduvai Carnivore Site (OCS) (Tanzania) Through AI and Metric Analyses

open access: yesInternational Journal of Osteoarchaeology, EarlyView.
ABSTRACT Lions (Panthera leo) are apex predators with a well‐documented influence on ecological dynamics, yet their potential role as bone‐accumulating agents remains poorly understood and often debated. Previous taphonomic studies have largely attributed bone accumulations in African savannah ecosystems to other carnivores, such as spotted hyenas ...
Blanca Jiménez‐García   +2 more
wiley   +1 more source

Respiratory syncytial virus outbreak in a long-term care facility detected using reverse transcriptase polymerase chain reaction: an argument for real-time detection methods. [PDF]

open access: yes, 2009
ObjectivesTo report an outbreak of respiratory synctyial virus (RSV) in a long-term care facility (LTCF) during ongoing routine respiratory illness surveillance.DesignRapid antigen testing, viral culture, direct fluorescent antibody (DFA) testing, and ...
Caram, L Brett   +9 more
core  

On Hurst exponent estimation under heavy-tailed distributions

open access: yes, 2012
In this paper, we show how the sampling properties of the Hurst exponent methods of estimation change with the presence of heavy tails. We run extensive Monte Carlo simulations to find out how rescaled range analysis (R/S), multifractal detrended ...
Alessio   +35 more
core   +2 more sources

Minimal DFA for testing divisibility

open access: yesJournal of Computer and System Sciences, 2004
We present and prove a theorem answering the question "how many states does a minimal deterministic finite automaton (DFA) that recognizes the set of base-b numbers divisible by k have?"
openaire   +3 more sources

Minimal consistent DFA revisited

open access: yesTheoretical Computer Science, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Vázquez de Parga, Manuel   +2 more
openaire   +1 more source

Characteristics, properties and limitations of per‐ or polyfluoroalkyl substances (PFASs) and fluoropolymers

open access: yesPolymer International, EarlyView.
An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
wiley   +1 more source

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