Results 11 to 20 of about 557 (150)

Method of using of the Box-Cox transformation at the application of the xbar and s chart

MATEC Web of Conferences, 2017
The application of the most statistical process control techniques is based on the assumption that the distribution of the measurements is normal. However, there are many situations in practice when the process data distribution is not normal. In certain
Eftimie Nicolae
doaj   +2 more sources

Criteria and methodology of complex evaluation of bituminous concrete mixer quality/Asfaltbetonio maišytuvo kokybės kompleksinio vertinimo kriterijai ir metodika

Journal of Civil Engineering and Management, 2001
The structure and sequence of technological operations of mixers for bituminous concrete mixtures, functioning in Lithuanian bituminous concrete mixing plants have been analyzed.
Henrikas Sivilevičius
doaj   +2 more sources

Does the transfer of knowledge from the pioneer generation to the second-generation speed-up the learning curve of robot-assisted partial nephrectomies? TRANSFER trial (UroCCR n°83). [PDF]

BJUI Compass
Abstract Objectives The objective is to compare the learning curves between two pioneer and three second‐generation surgeons for RAPN in terms of WIT, CD and positive surgical margins. Materials and methods The charts of consecutive RAPNs of three centres were reviewed from the UroCCR prospective database.
Vignot L, Khene ZE, Mellouki A, Morrone A, Bernhard JC, Bensalah K, Chevallier D, Doumerc N, Roupret M, Nouhaud FX, Lebacle C, Long JA, Pillot P, Tillou X, Tibi B, Durand M, Ahallal Y, Bentellis I.   +17 more
europepmc   +2 more sources

Impedance-Matched High-Overtone Thickness-Shear Bulk Acoustic Resonators With Scalable Mode Volume. [PDF]

Adv Sci (Weinh)
A bottom‐electrode‐free high‐overtone bulk acoustic resonator is achieved by lateral excitation of antisymmetric thickness‐shear modes on a lithium‐niobate‐on‐silicon platform. Planar electrode geometry eliminates conventional loading along the resonance path and confines acoustic energy within the electrode gap.
Zhang ZD, Qin ZH, He YH, Cheng YF, Yan H, Yu SY, Lu MH, Chen YF.   +7 more
europepmc   +2 more sources

Rational Design Strategy for Triboelectric Nanogenerators Based on Electron Back Flow and Ionic Defects: The Case of Polytetrafluoroethylene

Advanced Electronic Materials, Volume 9, Issue 11, November 2023., 2023
Density functional theory calculations and theoretical modeling show that polytetrafluoroethylene (PTFE) triboelectric properties can be highly enhanced by defluorination, which can be experimentally obtained by X‐ray irradiation. Triboelectric measurements validate the prediction and prove its generality by pairing PTFE with both metals and polymers ...
Giulio Fatti, Alessandra Ciniero, Hyunseok Ko, Han Uk Lee, Yujin Na, Chang Kyu Jeong, Sang‐Geul Lee, Dongyub Kwak, Kwi‐Il Park, Sung Beom Cho, Daniele Dini   +10 more
wiley   +1 more source

A Variable Sampling Interval Synthetic Xbar Chart for the Process Mean. [PDF]

PLoS ONE, 2015
The usual practice of using a control chart to monitor a process is to take samples from the process with fixed sampling interval (FSI). In this paper, a synthetic X control chart with the variable sampling interval (VSI) feature is proposed for ...
Lei Yong Lee, Michael Boon Chong Khoo, Sin Yin Teh, Ming Ha Lee   +3 more
doaj   +1 more source

Causal inference with longitudinal data subject to irregular assessment times

Statistics in Medicine, Volume 42, Issue 14, Page 2361-2393, 30 June 2023., 2023
Summary Data collected in the context of usual care present a rich source of longitudinal data for research, but often require analyses that simultaneously enable causal inferences from observational data while handling irregular and informative assessment times.
Eleanor M. Pullenayegum, Catherine Birken, Jonathon Maguire, The TARGet Kids! Collaboration   +3 more
wiley   +1 more source

High‐Resolution Aircraft Observations of Turbulence and Waves in the Free Atmosphere and Comparison With Global Model Predictions

Journal of Geophysical Research: Atmospheres, Volume 127, Issue 16, 27 August 2022., 2022
Abstract High‐resolution flight data obtained from in situ measurements in the free atmosphere aboard the High Altitude and Long Range Research Aircraft (HALO) are used to determine eddy dissipation rates along extended flights during the recent Southern Hemisphere Transport, Dynamics, and Chemistry aircraft campaign (SOUTHTRAC) in the 2019 austral ...
Andreas Dörnbrack, Peter Bechtold, Ulrich Schumann   +2 more
wiley   +1 more source

Male Superb Lyrebirds (Menura novaehollandiae) perform an ornate multimodal display immediately following copulation

Ibis, Volume 164, Issue 3, Page 809-815, July 2022., 2022
Birds perform some of the most elaborate intersexual displays in the animal kingdom, but while these are typically associated with the pre‐copulation stage of sexual interactions, the males of some species also display following copulation. Here we report that immediately after dismounting from females, male Superb Lyrebirds Menura novaehollandiae ...
Anastasia H. Dalziell, Justin A. Welbergen   +1 more
wiley   +1 more source

Near‐Bed Sediment Transport During Offshore Bar Migration in Large‐Scale Experiments

Journal of Geophysical Research: Oceans, Volume 127, Issue 5, May 2022., 2022
Abstract This study presents novel insights into hydrodynamics and sediment fluxes in large‐scale laboratory experiments with bichromatic wave groups on a relatively steep initial beach slope (1:15). An Acoustic Concentration and Velocity Profiler provided detailed information of velocity and sand concentration near the bed from shoaling up to the ...
Florian Grossmann, David Hurther, Joep van der Zanden, Iván Cáceres, Agustín Sánchez‐Arcilla, José M. Alsina   +5 more
wiley   +1 more source