Results 161 to 170 of about 177,511 (317)

Nonlinear analysis of flat post‐tensioned concrete slab–edge column connections

open access: yesStructural Concrete, EarlyView.
Abstract This study presents nonlinear finite element analyses to investigate the punching shear behavior of unbonded post‐tensioned concrete flat slabs at slab‐edge column connections. A parametric analysis was conducted to evaluate the influence of four critical parameters on the punching shear resistance: the distribution of prestressing tendons ...
Igor Gonçalves   +4 more
wiley   +1 more source

Experimental study of the size effect on punching shear of steel fiber reinforced concrete slabs

open access: yesStructural Concrete, EarlyView.
Abstract As the behavior and design of steel fiber reinforced concrete slabs subjected to punching still remain an area of concern, the present work aims to provide a further contribution to the knowledge on punching behavior of slabs without transverse reinforcement.
Enrico Faccin   +4 more
wiley   +1 more source

Numerical analysis of the effects of corrosion on the punching shear capacity of reinforced concrete flat slabs with openings

open access: yesStructural Concrete, EarlyView.
Abstract The reinforcement corrosion is one of the main degradation mechanisms in reinforced concrete structures. Its effects can harm structural elements by reducing mechanical capacity, mainly due to diminished reinforcement properties and expansive reactions within the concrete.
Vinícius D'Almeida Rodrigues Ramos   +3 more
wiley   +1 more source

Quantitative micro‐XRF combined with X‐ray imaging reveals correlations between Zn concentration and dentin tubule porosity across entire teeth

open access: yesVIEW, EarlyView.
The combination of calibrated micro‐CT and quantitative micro‐XRF measurement facilitates the correlation of density and composition in the 3D macro‐structure of teeth. Zn concentration in dentin increases by a factor of 10 toward the pulp. Incidentally, the overall density decreases, showing an association between Zn and the dentin tissue porosity ...
Ioanna Mantouvalou   +11 more
wiley   +1 more source

Interventional oncology in children: Where are we now?

open access: yesJournal of Medical Imaging and Radiation Oncology, EarlyView.
Abstract Paediatric Interventional Oncology (IO) lags behind adult IO due to a scarcity of specific outcome data. The suboptimal way to evolve this field is relying heavily on adult experiences. The distinct tumour types prevalent in children, such as extracranial germ cell tumours, sarcomas, and neuroblastoma, differ strongly from those found in ...
Premal Amrishkumar Patel   +1 more
wiley   +1 more source

Safety and feasibility of bronchoscopic microwave ablation technology for peripheral lung cancer: a multi-center, prospective, single-arm study protocol

open access: yesBMC Surgery
Background Microwave ablation is a well-established therapeutic option for percutaneous treatment of lung tumors, however transbronchial microwave ablation remains under investigation.
Jason Beattie   +18 more
doaj   +1 more source

Polarization vision and the physiological basis for trichromatic vision in Philaenus spumarius: Understanding host‐seeking behaviour in insect vectors for Xylella fastidiosa control

open access: yesAnnals of Applied Biology, EarlyView.
We investigated the role of vision in host‐seeking behaviour by Philaenus spumarius, the main European vector of Xylella fastidiosa, through an integrated anatomical, optical, physiological, and behavioural study. Our data highlight that the spittlebug uses visual cues, including polarized light, which may aid in detecting the polarized reflections ...
Domen Lazar   +4 more
wiley   +1 more source

Cone-beam CT

open access: yes, 2016
Henry Knipe, Raymond Chieng, Daniel Bell
openaire   +1 more source

Case Report of Maxillary Alveolar Rhabdomyosarcoma Misdiagnosed as Periapical Lesion: Clinicopathological Alerts and Life‐Saving Lessons for Dentists

open access: yesAustralian Endodontic Journal, EarlyView.
ABSTRACT This report describes a rare case of alveolar rhabdomyosarcoma initially presenting with clinical features resembling an endodontic lesion. A 15‐year‐old male presented with progressive right maxillary swelling initially treated as a dental abscess.
Saliha Akçay Köprücü   +3 more
wiley   +1 more source

Characterisation of the Mesial Root and Middle Mesial Canal Morphology in Mandibular First Molars: An Ex Vivo Micro‐CT Study

open access: yesAustralian Endodontic Journal, EarlyView.
ABSTRACT This ex vivo study characterised the mesial root morphology of mandibular first molars with a middle mesial canal (MMC) using micro‐CT. Among 469 scanned molars, 42 (8.96%) presented an MMC. Morphological parameters analysed included canal configuration, chamber orifice features, dentine thickness, isthmus type, and aspect ratio.
Nuno Rodrigues dos Santos   +3 more
wiley   +1 more source

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