Results 101 to 110 of about 3,424,782 (321)

Discrepancies Between Micro Versus Macroscale Viscoelastic Properties in a Microplastic‐Tissue Composite Model

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the discrepancies between bulk mechanics and spatial mapping in a tissue‐mimetic hydrogel model. Microplastic particles create localized stiff mechanical microenvironments that are detectable by cellular‐scale nanoindentation but leave bulk properties unchanged as measured by rheology.
Ahron T. Verschleisser   +3 more
wiley   +1 more source

Effectiveness of Endoscopy with High-Resolution, Magnification, Chromoscopy and NBI in the Diagnosis of Mucosal Diseases of the Esophagogastroduodenal Area in Patients with Gastroesophageal Reflux Disease

open access: yesGastroenterologìa, 2015
The article shows the features of the state of the mucosa of the esophagus, stomach and duodenum in patients with gastroesophageal reflux disease.
O.O. Krylovа   +3 more
doaj   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

open access: yesAdvanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn   +5 more
wiley   +1 more source

TDOA-Based Localization System with Narrow-band Signals [PDF]

open access: yes, 2013
This paper gives a general overview of the challenges that arise in using narrow-band signals, such as GSM, for localisation based on the time properties of the signal. Specifically, synchronisation and retrieving of time information are addressed.
Dimitrova, D. C., Braun, T., Li, Z.
core   +1 more source

Narrow band imaging in endoscopic evaluation of the larynx

open access: yesCurrent Opinion in Otolaryngology & Head and Neck Surgery, 2012
Narrow band imaging (NBI) is a novel endoscopic technique using filtered wavelengths in order to enhance the microvascular abnormalities associated with the preneoplastic and neoplastic changes of the mucosal lining of the upper aerodigestive tract. The present review is focused on the use of NBI in the management of patients with laryngeal cancer.The ...
PIAZZA, Cesare   +3 more
openaire   +5 more sources

Simulation‐Based Analysis of Insert Pull‐Out in Nickel‐Polyurethane Hybrid Foams Using CT‐Derived Geometries

open access: yesAdvanced Engineering Materials, EarlyView.
CT‐based finite element simulations combined with in situ X‐ray computed tomography are used to analyze insert pull‐out in nickel‐coated polymer foams. Despite variations in material parameters, deformation consistently concentrates within a narrow annular region around the insert.
Yannik Bautz   +4 more
wiley   +1 more source

The narrow-band imaging examination method in otorhinolaryngology

open access: yesZdravniški Vestnik, 2013
Early diagnostics could improve the prognosis of patients with squamous-cell carcinomas of the head and neck. Narrow-Band Imaging (NBI) is the latest examination method in the group of biologic endoscopies.
Robert Šifrer, Jure Urbančič
doaj  

Gallium Microalloying in Bi–Sn Solders: Interfacial Phase Formation, Wettability, and Long‐Term Shear Reliability Under Isothermal Aging

open access: yesAdvanced Engineering Materials, EarlyView.
Gallium microalloying redirects interfacial reactions in low‐temperature Bi–Sn solders from Cu–Sn toward Cu–Ga intermetallic formation. The resulting Cu–Ga layer suppresses intermetallic growth during thermal aging, alters fracture pathways, and improves interfacial stability.
Iva Králová   +6 more
wiley   +1 more source

A Novel Approach to Estimate the Transition Temperature via Dynamic Nanoindentation

open access: yesAdvanced Engineering Materials, EarlyView.
A new dynamic nanoindentation‐based method was developed that uses the stiffness ratio as an indicator of the elastic–plastic deformation contributions at different temperatures. The approach successfully identified transition temperatures in ferritic steel and distinguished them from continuously ductile austenitic steel.
Stefan Zeiler   +4 more
wiley   +1 more source

Single harmonic based narrow-band magnetic particle imaging

open access: yes, 2020
In this study, we present a narrow-band Magnetic Particle Imaging (MPI) system based on the measurement of the 3f0 harmonic of magnetic nanoparticles. A spot sample is used to measure the point spread function (PSF).
Zhong, Jing   +3 more
core  

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