Results 191 to 200 of about 1,369,373 (261)
Journal of Field Robotics, EarlyView.ABSTRACT Safe and reliable mobility over different kinds of ground is important for planetary rovers on space missions. Since terrain changes might affect the mobility of the rover, energy consumption, and safety, detecting the type of ground in real‐time is vital.
Md Masrul Khan +7 more
wiley +1 more source
steel research international, EarlyView.Laser welding of duplex stainless steel disrupts phase balance, promotes nitride precipitation, and reduces fatigue resistance. Postweld heat treatment restores austenite and dissolves nitrides, but the resulting crystallography and phase morphology still impair fatigue performance.
Aparecida Silva Magalhães +6 more
wiley +1 more source
Enhancing printability of 3D printed concrete by using metakaolin and silica fume
Structural Concrete, EarlyView.Abstract This study investigates the effects of incorporating metakaolin (MK) and silica fume (SF) on the fresh and hardened properties of 3D printed concrete (3DPC). Five mix designs were prepared with MK replacement levels of 0%, 10%, 12.5%, and 15%, along with one mix containing 10% MK and 5% SF.
Marwah M. Thajeel +2 more
wiley +1 more source
Structural Concrete, EarlyView.Abstract The accurate prediction of the shear capacity of reinforced concrete underpins the efficient and safe design of concrete buildings and infrastructure. Disagreement remains about shear mechanisms and the modeling of shear resistance. For slender beams without shear reinforcement, critical shear crack (CSC) models have attracted interest.
Hasini C. Weerasinghe, Janet M. Lees
wiley +1 more source
Structural Concrete, EarlyView.Abstract Cellulose nanocrystals (CNCs), increasingly utilized in cement‐bound materials, offer improved material properties and enhanced sustainability due to their bio‐based origin. Nanosilica (NS), known for its high reactivity and refinement of cement microstructure, also significantly impacts cement performance.
Ali Satar Jaber Al‐Askary +2 more
wiley +1 more source
Journal of Applied Crystallography, EarlyView.A rapid scanning X‐ray nanodiffraction method is demonstrated to efficiently assess local microstructural changes in polycrystalline micropillars during deformation, enabling real‐time insights.Microstructural characterization of polycrystalline micropillars remains a significant challenge, particularly under time constraints such as those encountered ...
Anton Davydok +3 more
wiley +1 more source
Lattice strain relaxation in thin Mo films grown heteroepitaxially on MgO single crystals
Journal of Applied Crystallography, EarlyView.The possibility of controlling the crystallographic orientation of thin metallic films via heteroepitaxy to a single‐crystalline substrate is illustrated on the example of molybdenum films deposited on MgO substrates having the orientations (001) and (011).
Petr Cejpek +2 more
wiley +1 more source
Floating zone growth of high‐purity MgO substrate single crystals
Acta Crystallographica Section B, EarlyView.High‐purity MgO substrate crystals grown by the optical floating zone technique are demonstrated, which can serve as a foundation for the development of novel device concepts based on epitaxially grown thin films.MgO single crystals with diameters between 3.5 and 5 mm and lengths up to 40 mm were grown by the optical floating zone technique (OFZ ...
Christo Guguschev +7 more
wiley +1 more source
Record phenological responses to climate change in three sympatric penguin species
Journal of Animal Ecology, EarlyView.This paper is impressive because we managed to monitor extensively a really difficult place to reach and operate in. We deployed 77 cameras across Antarctica and the Sub Antarctic islands to monitor three different species of penguins. We found that they are the fastest advancing vertebrates with respect to their timing of breeding.
Ignacio Juarez Martinez +8 more
wiley +1 more source