Results 51 to 60 of about 9,436 (239)

Experimental Research on the Correction of Vortex Light Wavefront Distortion

Photonics
Wavefront distortion occurs when vortex beams are transmitted in the atmosphere. The turbulence effect greatly affects the transmission of information, so it is necessary to use adaptive optical correction technology to correct the wavefront distortion ...
Yahang Ge, Xizheng Ke
doaj   +1 more source

The pile dwelling of Tombola di Cerea (Verona) (1999 excavation)

IpoTESI di Preistoria, 2018
The pile dwelling was discovered in 1955 in the valley of the river Menago, just a few hundred meters south of the settlement of Tombola di Cerea (VR). A first excavation was carried out that very year by Francesco Zorzi, director of the Museo Civico di ...
Luciano Salzani, Claudio Balista, Priscilla Butta, Nicoletta Martinelli, Paola Torri, Giovanna Bosi, Marta Mazzanti, Anna Maria Mercuri, Carla Alberta Accorsi, Marco Bertolini, Ursula Thun Hohenstein   +10 more
doaj   +1 more source

External and Internal Cracking Caused by Heat Treatment in Laser Powder Bed Fusion‐Fabricated Inconel 738LC Components

Advanced Engineering Materials, EarlyView.
Manufacturing problems such as heat treatment‐induced cracking hinder the widespread application of the laser powder bed fusion (LPBF) process to superalloys. In this study, cracks in the LPBF components of Inconel 738LC superalloy are characterized after heat treatment at various temperature ranges, revealing two distinct cracking behaviors.
Kosuke Kuwabara, Masahiro Kusano, Ayako Ikeda, Toshio Osada, Makoto Watanabe   +4 more
wiley   +1 more source

STUDYING THE BEHAVIOR OF THE PILE CAP FOR SHEAR REINFORCEMENT WHICH IS SIMULATED AS A CONTINUOUS DEEP BEAM USING SELF COMPACTING CONCRETE

Journal of Engineering and Sustainable Development, 2017
This paper is focused on the effect of shear reinforcement on the structural behavior of continuous reinforced concrete deep beams to employ the results on the pile's caps works.
Zuhair Abd Hacheem
doaj  

BEHAVIOR OF REINFORCED CONCRETE CONTINUOUS DEEP BEAMS WITH OPENINGS AND USING MULTIPLE TYPES OF STRENGTHING

Mağallaẗ Al-kūfaẗ Al-handasiyyaẗ
In this research, thirteen specimens of reinforced concrete continuous deep beams were cast and tested. One was the main reference without openings, three were a reference for each style depending on the arrangement of the openings, while the other nine ...
Huda Basim kitab, Muhammad Abed Attiya
doaj   +1 more source

OntOMat: Toward Ontology‐Based Product and Process Design Engineering and Optimization Solutions Fueling Circular Value Chains

Advanced Engineering Materials, EarlyView.
The OntOMat ontology establishes a structured framework for polymer matrix fiber reinforced composite materials, integrating manufacturing processes, characterization methods, and multiscale design through the VDI/VDE 3682 formalized process description standard.
Nicolas Christ, Jörg Hohe, Martin Kördel, Michael Giese, Niklas Toffert, Christian Seidel, Olaf Rehme, Patrik Schneider, Oliver Focke, Elie Abi Aoun, Claas Falldorf, Beñat Gutierrez, Alexandra Kühn, Sven Torstrick-von der Lieth, Christoph Herden, Erik Johannsen, Jan‐Uwe R. Schmidt, Felix Winkelmann, Andreas Schott, Daniel Schott   +19 more
wiley   +1 more source

Uniform Amorphization of Crystalline Silicon Surfaces Enabled by Deep Ultraviolet Femtosecond Laser Pulses

Advanced Engineering Materials, EarlyView.
Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali, Magali Gregoire, Matys Guyard, Tatiana Itina, David Grojo, Pol Sopeña   +5 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

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

Advanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite, Lilia Huynh, Natascha Gray, Quintin N. Meier, Marta D. Rossell, Morgan Trassin   +5 more
wiley   +1 more source