Results 111 to 120 of about 747,562 (306)
Analysis of dynamic stiffness of arch bridges by means of the first natural frequency
ITM Web of Conferences, 2017 Arch bridges have always boasted a strong aesthetic value. However, their design is challenging due to dynamic excitations. It regards, above all, an area up to ¼ of a bridge length. In bridge dynamics numerical analyses, the basic importance is attached
Karas Slawomir, Wrobel Radoslaw
doaj +1 more source
On the inconsistency of the MLE in certain heteroskedastic regression models [PDF]
This paper studies the possibility of inconsistency of the maximum likelihood estimators for certain heteroskedastic regression models. These include the Poisson regression model and the ARCH models.
Adrián R. Pagan, Hernán Sabau
core
Temporal evolution of arch filaments as seen in He I 10830 \r{A}
, 2018 We study the evolution of an arch filament system (AFS) and of its individual arch filaments to learn about the processes occurring in them. We observed the AFS at the GREGOR solar telescope on Tenerife at high cadence with the very fast spectroscopic ...
Balthasar, H. +9 more
core +1 more source
Adaptive 4D‐Printed Vascular Stents With Low‐Temperature‐Activated and Intelligent Deployment
Advanced Functional Materials, EarlyView.Microarchitected coronary artery stents were fabricated using a polycaprolactone (PCL)‐based shape memory polymer (SMP) composite via projection micro‐stereolithography (PµSL) 4D printing. By incorporating diethyl phthalate (DEP) as a plasticizer, the thermal transition temperature (Ttran) was modulated to about 37°C, enabling rapid and autonomous ...
Yannan Li +12 more
wiley +1 more source
Comparative study of dental arch width in plaster models, photocopies and digitized images
Brazilian Oral Research, 2009 The aim of this study was to comparatively assess dental arch width, in the canine and molar regions, by means of direct measurements from plaster models, photocopies and digitized images of the models. The sample consisted of 130 pairs of plaster models,
Maria Cristina Rosseto +4 more
doaj +1 more source
Broadband, Flexible, Skin‐Compatible Carbon Dots/Graphene Photodetectors for Wearable Applications
Advanced Functional Materials, EarlyView.Broadband, flexible photodetectors integrating nitrogen‐rich carbon dots with single‐layer graphene on plastic substrates are demonstrated. A biocompatible chitosan–glycerol electrolyte enables efficient low‐voltage gating and on‐skin operation. The devices exhibit ultraviolet‐to‐near‐infrared response, mechanical robustness under bending, and verified
Nouha Loudhaief +20 more
wiley +1 more source
Advanced Functional Materials, EarlyView.The negative electron affinity of diamond allows to emit highly reductive electrons. By introducing intra‐bandgap states and an optimized electron transfer mechanism by surface functionalization with Ru(bpy)3, the formation of solvated electrons is achieved upon solar irradiation.
Benjamin Kiendl +20 more
wiley +1 more source
On improved volatility modelling by fitting skewness in ARCH models. [PDF]
J Appl Stat, 2020 Mantalos P +7 more
europepmc +1 more source
Advanced Functional Materials, EarlyView.A transparent, laser‐microscribed glass platform enables cancer diagnosis within 1 h—much faster than histology, which takes days, and free from the chemical or contrast risks of MRI or CT scans. The antibody‐functionalized rough glass surface captures viable cancer cells directly from suspension, allowing instant optical readout and offering a rapid ...
Anish Pal +5 more
wiley +1 more source
Accuracy on Scanned Images of Full Arch Models with Orthodontic Brackets by Various Intraoral Scanners in the Presence of Artificial Saliva. [PDF]
Biomed Res Int, 2020 Song J, Kim M.
europepmc +1 more source