Results 71 to 80 of about 19,222 (246)
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
Design and Analysis of Compression–Torsion Coupling Metamaterials Using the Golden Section Method
Advanced Engineering Materials, EarlyView.A novel compression–torsion metamaterial is engineered using inclined rods and symmetry breaking. To optimize its torsional performance, the golden section method is employed. The mechanical response of the metamaterial is validated through both numerical analysis and experimental validation.
Amirhossein Hassani, Sara Bagherifard
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
Advanced Engineering Materials, EarlyView.Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati +11 more
wiley +1 more source
The polar bear (Ursus maritimus) is the largest carnivore on land and the 19 subpopulations roam the territory and ice-covered waters of Canada, Greenland, Svalbard, Russia and Alaska. The 1973 Agreement on the Conservation of Polar Bears was a direct response to the over-hunting of the species.
Fahrenkrug, Leoni, Bastmeijer, Kees
openaire +2 more sources
Additive Manufacturing of Alumina‐Reinforced Elastomers
Advanced Engineering Materials, EarlyView.Vat‐photopolymerized elastomers reinforced with platelet‐shaped alumina exhibited preferential orientation, reduced porosity, and significantly enhanced mechanical performance. A 3 wt% platelet loading increased tensile strength from 12.4 to 45.7 MPa, highlighting the critical role of filler morphology in elastomeric VPP composites.
Majid Barzegar Keyvani +6 more
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
Advanced Engineering Materials, EarlyView.This review comprehensively evaluates extrusion‐based additive manufacturing for advanced ceramics, detailing feedstock options and key process parameters. By critically addressing defect mechanisms like porosity and cracking, the work highlights optimization strategies through machine learning and advanced postprocessing.
Meisam Bakhtiari +4 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.The community‐driven Platform MaterialDigital Core Ontology (PMDco) 3.0 is introduced as a Basic Formal Ontology‐aligned semantic backbone for the processing–structure–properties paradigm in Materials Science and Engineering. Modular engineering, automated releases, and validation workflows are highlighted and key semantic patterns for materials ...
Markus Schilling +15 more
wiley +1 more source
, 2023 Polar bears Polar bears are large carnivorous mammals that inhabit the Arctic regions of the world. They are well adapted to living in a cold and icy environment, with thick fur, a layer of insulating blubber, and large, webbed paws that allow them to swim and walk on snow and ice.
openaire +1 more source