Results 91 to 100 of about 1,723,588 (348)

The Effect of Repeated Microwaving Disinfection on the Dimensional Stability of Acrylic Dentures

Acta Stomatologica Croatica, 2014
Objective. The aim of this study was to evaluate the effect of repeated microwave disinfections on the dimensional stability of acrylic dentures. Materials and Methods. Three groups of dentures made of a heat polymerized acrylic resin were tested.
Nick Polychronakis, Stavros Yannikakis, Alcibiades Zissis   +2 more
doaj   +1 more source

Bootstrapping and Sample Splitting For High-Dimensional, Assumption-Free Inference [PDF]

arXiv, 2016
Several new methods have been proposed for performing valid inference after model selection. An older method is sampling splitting: use part of the data for model selection and part for inference. In this paper we revisit sample splitting combined with the bootstrap (or the Normal approximation).
arxiv  

Measuring three-dimensional positions of atoms to the highest accuracy with electrons

Comptes Rendus. Physique, 2014
Abstract Recent developments in transmission electron microscopy (TEM) have pushed lateral spatial resolution to well below 1 A. For selected perfect crystal structures, this allows atomic columns to be identified along several crystallographic orientations.
Christoph Koch, Wouter Van den Broek
openaire   +2 more sources

Two-dimensional Moiré phase analysis for accurate strain distribution measurement and application in crack prediction.

Optics Express, 2017
Aimed at the low accuracy problem of shear strain measurement in Moiré methods, a two-dimensional (2D) Moiré phase analysis method is proposed for full-field deformation measurement with high accuracy. A grid image is first processed by the spatial phase-
Qinghua Wang, S. Ri, H. Tsuda, M. Koyama, K. Tsuzaki   +4 more
semanticscholar   +1 more source

Evaluation of the glottic surface dose in three‐dimensional conformal radiotherapy for early‐stage glottic cancer using a treatment planning system

Journal of Applied Clinical Medical Physics, EarlyView.
ABSTRACT Background In radiotherapy for early‐stage glottic cancer, evaluating the target surface dose at the glottic air–tissue boundary is crucial, as buildup effect can cause underdosing. The accuracy of dose evaluation in the surrounding tissues is affected by both the dose calculation algorithms and the accuracy of the Hounsfield unit values in ...
Yuki Saito, Takahiro Kanehira, Takahito Yuki, Miyako Myojin   +3 more
wiley   +1 more source

Performance analysis of control allocation using data‐driven integral quadratic constraints

Advanced Control for Applications, Volume 4, Issue 4, December 2022., 2022
Abstract A new method is presented for evaluating the performance of a nonlinear control allocation system within a linear control loop. To that end, a worst‐case gain analysis problem is formulated that can be readily solved by means of well‐established methods from robustness analysis using integral quadratic constraints (IQCs).
Manuel Pusch, Daniel Ossmann, Harald Pfifer   +2 more
wiley   +1 more source

Comparison of Dimensional Accuracy between a Laser Scanner and a Laser Tracker with Handheld Scan in a Laboratory Setting

Metrology
The dimensional accuracy of a laser scanner has been extensively evaluated using various measurement methods and diverse reference standards. This study specifically focuses on two key considerations.
Alex Krummenauer, Douglas Bergamo, Roberto Serpa Soares, Victor Emmanuel de Oliveira Gomes, Vitor Camargo Nardelli   +4 more
doaj   +1 more source

Assessing proton plans with three different beam delivery systems versus photon plans for head and neck tumors

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose To compare plan quality among photon volumetric modulated arc therapy (VMAT) and intensity‐modulated proton therapy (IMPT) with robustness using three different proton beam delivery systems with various spot size (σ) ranges: cyclotron‐generated proton beams (CPBs) (σ: 2.7–7.0 mm), linear accelerator proton beams (LPBs) (σ: 2.9–5.5 mm),
Tara Gray, Chieh‐Wen Liu, Saeed Ahmed, Anna Maria Kolano, Jeremy Donaghue, Shlomo Koyfman, Neil Woody, Shauna R. Campbell, Jonathan B. Farr, Ping Xia   +9 more
wiley   +1 more source

Digital Light Processing of 2D Lattice Composites for Tunable Self‐Sensing and Mechanical Performance

Advanced Engineering Materials, EarlyView., 2023
The study presents the mechanical and in situ sensing performance of digital light processing‐enabled 2D lattice nanocomposites under monotonic tensile and repeated cyclic loading, and provides guidelines for the design of architectures suitable for strain sensors and smart lightweight structures.
Omar Waqas Saadi, Mohammed Ayaz Uddin, Andreas Schiffer, Shanmugam Kumar   +3 more
wiley   +1 more source

Qualitative Visualization of Distance Information [PDF]

arXiv, 2002
Different types of two- and three-dimensional representations of a finite metric space are studied that focus on the accurate representation of the linear order among the distances rather than their actual values. Lower and upper bounds for representability probabilities are produced by experiments including random generation, a rubber-band algorithm ...
arxiv