Results 131 to 140 of about 40,631 (247)

The Fiery Eyes of a Maenad: Origin Determination of Faceted Garnet Eye Inlays in a Roman Bronze Bust From Southern Tyrol

open access: yesArchaeometry, EarlyView.
ABSTRACT In 1837, the Tyrolean State Museum Ferdinandeum in Innsbruck, Austria, purchased a Roman bronze statue of a maenad from the 2nd century ce with red garnets as facetted eye inlays found near Brixen, Southern Tyrol. These garnets were investigated using optical microscopy, a portable hand‐held and a stationary micro‐X‐ray fluorescence device, as
H. Albert Gilg   +3 more
wiley   +1 more source

Cladding mode coupling in highly localized fiber Bragg gratings: modal properties and transmission spectra

open access: yes, 2010
The spectral characteristics of a fiber Bragg grating (FBG) with a transversely inhomogeneous refractive index profile, differs con- siderably from that of a transversely uniform one.
Andreas Tünnermann   +30 more
core   +1 more source

Distinct distributions of myosin motor conformations during contraction of slow and fast skeletal muscle

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend We recorded time‐resolved small‐angle X‐ray diffraction patterns from rat soleus muscles during fixed‐end twitch and tetanic contractions to investigate the structural basis of the lower fixed‐end force generated by these muscles compared with fast muscles, such as the mouse extensor digitorum longus (EDL).
Cameron Hill   +7 more
wiley   +1 more source

Lithium Niobate Quadratic Integrated Nonlinear Photonics: Enabling Ultra‐Wide Bandwidth and Ultrafast Photonic Engines

open access: yesNanophotonics, Volume 15, Issue 9, 13 May 2026.
This perspective surveys emerging quantum and classical photonic applications across operating wavelengths and timescales, highlighting persistent technological gaps in integrated light sources. We examine the unique advantages of quadratic nonlinear photonics on the thin‐film lithium niobate (TFLN) platform and discuss strategies for realizing ...
Meng Tian   +7 more
wiley   +1 more source

Sol–Gel Derived Polymer Precursors for Stereolithography of ZrC

open access: yesAdvanced Engineering Materials, Volume 28, Issue 9, 6 May 2026.
ZrC is a critical material target for extreme temperature conditions. This report describes a protocol for preparing ZrC ceramics via stereolithography and examines the impact of the polymer matrix on carbothermal reduction and mechanical stability of 3D printed ZrC.
Charles J. Rafalko   +2 more
wiley   +1 more source

Addressing Bottlenecks to Achieve High‐Energy Sodium‐Ion Cells Using Tin Anodes

open access: yesAdvanced Energy Materials, Volume 16, Issue 17, 6 May 2026.
The challenges in coupling high voltage cathode with Sn‐alloying anode or in anode‐free cell, using glyme based electrolytes to realize high energy Na‐ion cells are reported. Surface protection strategy such as SnO coating on Sn or trapping the parasitic species from poisoning the anode, helps improving the cyclability, with ∼100% capacity retention ...
Parth Desai   +11 more
wiley   +1 more source

Interrogation procedure for double addressed fiber Bragg structures as sensors of radiophotonic fewsensor system

open access: yesФизика волновых процессов и радиотехнические системы, 2018
Microwave photonic sensor systems represent a wide class of information systems with measurement conversion that use standardized analog and parallel links of parallel and sequential type with filtering, allowing to functionally displaying the ...
A.Zh. Sakhabutdinov, O.G. Morozov
doaj  

Anchorage System Contribution to Post‐Tensioned Bridge Collapse

open access: yesEngineering Reports, Volume 8, Issue 5, May 2026.
This paper presents an experimental investigation of a 1960s precast post‐tensioned girder bridge in Trstena, Slovakia, revealing severe corrosion and anchorage degradation that ultimately led to its collapse. The findings highlight critical vulnerabilities in obsolete anchorage systems and emphasize the need for proactive assessment and maintenance of
Petra Bujnakova   +3 more
wiley   +1 more source

Advanced Composite Technologies for High‐Performance Sports Equipment: Materials, Manufacturing, and Sustainability Perspectives

open access: yesPolymers for Advanced Technologies, Volume 37, Issue 5, May 2026.
ABSTRACT Advanced composite materials have become the leading material platform for high‐performance sports equipment, enabling superior strength‐to‐weight performance, stiffness tailoring, and enhanced functional integration compared with conventional materials. This review summarizes state‐of‐the‐art developments across multiple sporting disciplines,
Alhayat Getu Temesgen   +5 more
wiley   +1 more source

Strain Development During Cure of Partially Pre‐Cured Thermosetting Composites Measured With Distributed Fiber Optic Sensors

open access: yesPolymer Composites, Volume 47, Issue 8, Page 7155-7169, 20 April 2026.
Schematic representation of the beneficial effect of ply pre‐curing on temperature overshoot, internal strain and warpage during cure of thin and thick thermosetting composites. ABSTRACT Detection of manufacturing‐induced defects in thermosetting composites is crucial to guarantee part quality, safety, and improve manufacturing efficiency.
Francesco Taddei   +3 more
wiley   +1 more source

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