Results 151 to 160 of about 25,483 (300)
Confirming the impact origin of the São Miguel do Tapuio structure, northeastern Brazil
Meteoritics &Planetary Science, EarlyView.Abstract The São Miguel do Tapuio structure (SMT) is a remarkable, nearcircular feature of about 21 km diameter, centered at 5°37.6′ S, 41°23.3′ W in Piauí state, northeastern Brazil. The structure is located within the sedimentary strata of the Paleozoic–Mesozoic Parnaíba Basin and predominantly comprises sandstones of the Devonian Pimenteiras and ...
Alvaro Penteado Crósta +9 more
wiley +1 more source
Contribuições para a soldagem de titânio a laser na geometria de junta em aresta [PDF]
, 2002 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Ciência e Engenharia de Materiais.Reduzir peso com aumento constante da resistência dos componentes é o lema da indústria automotiva.
Souza, Charles Cristian de
core
Orthodontics &Craniofacial Research, EarlyView.ABSTRACT Objectives Periodontal distraction (PD) osteogenesis is a minimally invasive technique capable of rapidly moving uniradicular teeth, thereby shortening orthodontic treatment time. This study aimed to determine whether: (1) PD‐induced tooth movement affects tooth vitality and (2) the regenerated bone meets restorative standards for implant ...
Parul Sangwan +5 more
wiley +1 more source
Multi‐Dimensional Conductive Nanocomposites for Flexible Electronics
ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 4, July 2026.Multi‐dimensional conductive nanocomposites integrate 0D, 1D, and 2D nanomaterials through spatial structure regulation and interface engineering, achieving “1 + 1 > 2” synergistic effects. By leveraging 0D filling to reduce contact resistance, 1D bridging to construct continuous conductive paths, and 2D supporting to enhance mechanical stability ...
Tianyu Wang +12 more
wiley +1 more source
Fatigue Strength Analysis of a Cladded Steel Subjected to Tensile Predeformation
Fatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 7, Page 2767-2779, July 2026.ABSTRACT Cladded steels are a subset of layered metal composites in which a thin functional layer is bonded to a dissimilar substrate, thereby integrating the benefits of both constituent materials. However, the resulting heterogeneous properties of such layered metal composites collectively complicate deformation and fatigue behavior, making reliable ...
Marcel Krochmal +2 more
wiley +1 more source
Advanced Engineering Materials, Volume 28, Issue 12, 17 June 2026.It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti +11 more
wiley +1 more source
Advanced Engineering Materials, Volume 28, Issue 12, 17 June 2026.High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin +4 more
wiley +1 more source
Laser microspot welding of copper
A new procedure for laser spot welding of thin copper stripes was developed based on measuring the calibrated reflectivity coaxially to the laser beam and using this signal for in situ control of the laser power. Experiments with a power ramp of r=3.1 MW/
Amorosi, S. +4 more
core +1 more source
Investigation on the Microstructure and Mechanical Properties of 304 Stainless Steel Joints by Underwater Local Dry Laser Welding. [PDF]
Materials (Basel)Zhang X +7 more
europepmc +1 more source