Results 41 to 50 of about 38,649 (299)

Fabrication of light-weighted acoustic absorbers made of natural fiber composites via additive manufacturing

International Journal of Lightweight Materials and Manufacture, 2022
Synthetic fiber is still considered the best sound absorptive material. However, due to the health concern of synthetic fiber usage, researchers are trying to find another viable alternative.
Vignesh Sekar, Se Yong Eh Noum, Azma Putra, Sivakumar Sivanesan, Desmond Daniel Chin Vui Sheng   +4 more
doaj   +1 more source

Mass Composition of Cosmic Rays in the Range 2 x 10^17 - 3 x 10^18 Measured with Haverah Park Array

, 2002
At the Haverah Park Array a number of air shower observables were measured that are relevant to the determination of the mass composition of cosmic rays.
A.A Watson, Abu-Zayyad, Antoni, Cassiday, Coy, Coy, England, Gaisser, Gaisser, Haungs, Heck, J Knapp, J Lloyd-Evans, J.A Hinton, Kalmykov, Kalmykov, L Cazón, Lawrence, M Ave, Nagano, Ulrich, Walker, Watson, Wibig   +23 more
core   +1 more source

Mechanical and Morphological Characterizations of Laminated Object Manufactured 3D Printed Biodegradable Poly(lactic)acid with Various Physical Configurations

Journal of Marine Science and Engineering, 2022
Mechanical behavior of 3D-printed poly(lactic) acid material is an open topic for research on the reliability assessment of structures in marine and offshore industries.
Sudhir Kumar, Inderjeet Singh, Dinesh Kumar, Mohd Yazid Yahya, Seyed Saeid Rahimian Koloor   +4 more
doaj   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

A radio air shower surface detector as an extension for IceCube and IceTop

, 2007
The IceCube neutrino detector is built into the Antarctic ice sheet at the South Pole to measure high energy neutrinos. For this, 4800 photomultiplier tubes (PMTs) are being deployed at depths between 1450 and 2450 meters into the ice to measure neutrino
Albrecht Karle, Dave Besson, Dickinson, Falcke, Huege, Huege, Jan Auffenberg, Klaus Helbing, Kravchenko, Timo Karg, Tom Gaisser   +10 more
core   +1 more source

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

Advanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source

Continuous Optimization of Adaptive Quadtree Structures

, 2018
We present a novel continuous optimization method to the discrete problem of quadtree optimization. The optimization aims at achieving a quadtree structure with the highest mechanical stiffness, where the edges in the quadtree are interpreted as ...
Wu, Jun
core   +1 more source

Enhancing the Pierre Auger Observatory to the 10^{17} to 10^{18.5} eV Range: Capabilities of an Infill Surface Array [PDF]

, 2006
The Pierre Auger Observatory has been designed to study the highest-energy cosmic rays in nature (E > 10^{18.5} eV). The determination of their arrival direction, energy and composition is performed by the analysis of the atmospheric showers they produce.
A. Etchegoyen, A.D. Supanitsky, Abu-Zayyad, Aloisio, Berezinsky, Bird, Bird, Bird, G. Medina Tanco, Hayashida, Hillas, Hoerandel, I. Allekotte, Ivanov, Kalmykov, Knapp, M. Gómez Berisso, M.C. Medina, Nagano, Takeda, Wibig   +20 more
core   +2 more sources

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source

Robust and Reversible Thermofluorescence in Solvent‐Free Thermoplastic Polyurethane Composites

Advanced Functional Materials, EarlyView.
Thermofluorescent polymer composites with high‐contrast optical outputs are prepared by solvent‐free blending of indenoquinacridone dye into a thermoplastic polyurethane matrix. The temperature‐dependent fluorescence originates from aggregation–dissociation of the dye molecules, regulated by competing hydrogen bonds from the polymer matrix.
Guanghua Yu, Bowen Tian, Jazmine Aiya Marquez, Chia‐Min Hsieh, Qingsheng Wang, Hung‐Jue Sue, Mohammed Al‐Hashimi, Peiran Wei, Lei Fang   +8 more
wiley   +1 more source