Results 81 to 90 of about 591,166 (254)
Advanced Engineering Materials, EarlyView.Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt +5 more
wiley +1 more source
Kas amka, kostako või hoopis keegi muu? [PDF]
Mäetagused, 2003 The main character of the Chukotka travelling diary, Jelo, this time gets to hunt a polar bear after it is seen moving about near the camp of the reindeer-herders. The hunt is unsuccessful and the wounded animal runs away.
Ülo Siimets
doaj
Advanced Engineering Materials, EarlyView.Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees +6 more
wiley +1 more source
Using tri-axial accelerometers to identify wild polar bear behaviors
Endangered Species Research, 2017 Tri-axial accelerometers have been used to remotely identify the behaviors of a wide range of taxa. Assigning behaviors to accelerometer data often involves the use of captive animals or surrogate species, as their accelerometer signatures are generally ...
Pagano, AM +12 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This article investigates the dependence of the properties on the manufacturing orientation in the form of the inclination angle to the build plate of LPBF‐fabricated NiTi rods with a diameter of 150–220 µm. Metallographic, chemical, thermal, and mechanical characterization show behavior under identical manufacturing conditions that ranges from ...
Sandra Herzig +2 more
wiley +1 more source
Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials
Advanced Engineering Materials, EarlyView.Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley +1 more source
Novel range overlap of three ursids in the Canadian subarctic
Arctic Science, 2019 We describe for the first time in the peer-reviewed literature observations of American black bear (Ursus americanus Pallas, 1780), grizzly bear (Ursus arctos Linnaeus, 1758), and polar bear (Ursus maritimus Phipps, 1774) at the same locations.
Douglas Andrew Clark +5 more
doaj +1 more source
White-beaked dolphins trapped in the ice and eaten by polar bears
, 2015 Polar bears (Ursus maritimus) depend on sea ice, where they hunt ice-associated seals. However, they are opportunistic predators and scavengers with a long list of known prey species.
Agnès Brenière +7 more
core +1 more source
Advanced 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
Case Studies of Bear Cub Development Under Unique Rearing Conditions [PDF]
Animal Behavior and CognitionZoo-based polar bear (Ursus maritimus) literature is heavily biased towards reproduction and neonate development, or the behavioral management of adult individuals, often excluding the critical juvenile developmental period between den emergence and ...
Kylen N. Gartland, Grace Fuller
doaj +1 more source