Results 21 to 30 of about 384,609 (355)

Tissue‐ and diet‐dependent stable carbon and nitrogen isotope discrimination: a calibration study in a captive shorebird species

open access: yesJournal of Avian Biology, 2023
In ecology, stable‐isotope ratios are widely used to determine diets of organisms and reconstruct food webs. This is usually done by analyzing the stable‐isotope ratios of nitrogen (δ15N), which increase with increasing trophic level, and those of carbon
Tim Oortwijn   +4 more
doaj   +1 more source

Burg Wolfstal, Burg Bettringen und Burg Bargau

open access: yesArchivalia, 2015
Der Beitrag beschäftigt sich mit Burgen in und bei dem Schwäbisch Gmünder Stadtteil Bettringen (Burgstall am Klostersturz, der im 15. Jahrhundert als angebliche Burg Wolfstal und Sitz der ursprünglich Gmünder Geschlechterfamilie Wolf von Wolfstal galt; Bettringer Turm; Burg Bargau) sowie - als Exkurs - mit der bei Wetzgau gelegenen Burg Waldau ...
openaire   +3 more sources

Contact-allergy time [PDF]

open access: yes, 1986
The most commonly used techniques for the in vivo evaluation of the cellular immune response include intracutaneous testing with microbial recall antigens or sensitization with neoantigens.
Bogner, Johannes R.   +4 more
core   +1 more source

Architecture and Architectural Stonework of the Mediaeval Castle of Vrbovec near Hum na Sutli [PDF]

open access: yes, 2009
U radu je prikazan burg Vrbovec, smješten na krajnjem zapadu Hrvatskoga zagorja. Nakon iznošenja pregleda opisa i položaja burga, osnovnih povijesnih podataka i rezultata arheoloških istraživanja, arhitektura burga se razmatra i u širem kontekstu. Naziru
Tatjana Tkalčec, Zorislav Horvat
core   +1 more source

Piezoresistive Monitoring of Carbon Nanomaterial‐Reinforced Epoxy Composites Under Cyclic and Fatigue Loading: A Review

open access: yesAdvanced Engineering Materials, EarlyView.
Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente   +3 more
wiley   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

open access: yesAdvanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa   +9 more
wiley   +1 more source

Performance Statistics of Autoregressive Short and Ultrashort Signal Detectors

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника
Introduction. Parametric spectral estimation methods provide an improved level of frequency resolution compared to matched signal processing conventionally used in radar technology.
V. M. Kutuzov   +2 more
doaj   +1 more source

Treatment of an Esophageal Stricture in a 1-Month-Old Miniature Shetland Colt

open access: yesCase Reports in Veterinary Medicine, 2017
A 1-month-old Miniature Shetland colt was presented to the Burg Müggenhausen Equine Clinic. Primary complaints were regurgitation of milk, bilateral white nasal discharge, and weakness.
P. Nijdam, C. Elmas, M. C. Fugazzola
doaj   +1 more source

Bacharach and Burg Stahleck, 1817 [PDF]

open access: yes, 2015
Article describing and identifying as authentic a watercolour in the Hunterian collection which was recorded in the Turner literature but listed as location ...
Black, Peter, Jacklin, Elizabeth
core  

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

open access: yesAdvanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan   +5 more
wiley   +1 more source

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