Results 141 to 150 of about 1,326,520 (342)

Femtosecond Single‐ and Double‐Pulse Fabrication of Periodic Nanostructures on Stainless Steel for Surface‐Enhanced Raman Spectroscopy

open access: yesAdvanced Engineering Materials, EarlyView.
Periodic submicron features are fabricated on 304 stainless steel using single and double femtosecond laser pulses. By adjusting polarization, fluence, and inter‐pulse delay, 1D and 2D nanostructures are formed. Enhanced hydrophobicity and dense surface‐enhanced Raman spectroscopy hotspots enable analyte detection down to 10−10 M with good ...
Balaji Baskar   +3 more
wiley   +1 more source

Towards a new Body of Knowledge for geographic information science and technology [PDF]

open access: yesMicro, Macro & Mezzo Geoinformation, 2016
Geographic information (GI) and technology has rapidly expanded and evolved over the past decades resulting in an increased need for experts in this field. However, the academic, private and public sectors active in this domain often have difficulties to
Danny VANDENBROUCKE   +1 more
doaj  

Scalable Fabrication of Height‐Variable Microstructures with a Revised Wetting Model

open access: yesAdvanced Engineering Materials, EarlyView.
Height‐variable microstructures are fabricated using a scalable CO2 laser machining approach, enabling precise control of wettability through structural gradients. Classical wetting models fail to capture height‐induced effects, necessitating a revised theoretical framework.
Prabuddha De Saram   +2 more
wiley   +1 more source

State Dilemmas in Contemporary World Order

open access: yesVestnik MGIMO-Universiteta, 2016
The problems of the world order is often seen through the interaction of the leading centers of power. Nevertheless there is another approach, locating actorhood in the state, which forms the world order.
Ivan N. Timofeev
doaj  

From Nature to Engineering: Mortar Volume and Interfacial Mechanics in Bioinspired Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Inspired by natural armors like nacre, this study explores how varying the volume fraction of the soft mortar layer impacts the interfacial strength and toughness of bioinspired ceramics. Experimental and computational analysis reveals that higher mortar volumes increase energy dissipation but reduce interfacial stiffness, offering insights for ...
Ehsan Azad   +4 more
wiley   +1 more source

Análise de processo hierárquico para gerir as estradas florestais

open access: yesFloresta e Ambiente
Este trabalho teve como objetivo hierarquizar os defeitos mais importantes encontrados em duas empresas do setor de estradas florestais, localizadas nos estados de Minas Gerais e Bahia, onde foram aplicados questionários a engenheiros e professores que ...
Robson José de Oliveira   +4 more
doaj   +1 more source

Hierarchy in Stratigraphical Nomenclature [PDF]

open access: bronze, 1968
P. C. Sylvester-Bradley   +5 more
openalex   +1 more source

Influence of Testing Temperature on the Mechanical Performance of Brazed Conventionally and Additively Manufactured 316L Stainless Steel Joints

open access: yesAdvanced Engineering Materials, EarlyView.
This study reports for the first time the mechanical properties of brazed joints featuring Additively manufactured parts, such parts will likely need to be joined or combined with other components, and brazing offers a way of doing this for complex shapes without distortion. A new shear test methodology developed for such joints is also described.
Frances Livera   +7 more
wiley   +1 more source

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