Results 141 to 150 of about 2,826,849 (353)

Damage Evolution Characteristics of Steel-Fiber-Reinforced Cellular Concrete Based on Acoustic Emission

open access: yesBuildings
In order to investigate the steel fiber parameters on the damage characteristics and crack evolution of cellular concrete materials, uniaxial compression–acoustic emission combined tests were carried out on steel-fiber-reinforced cellular concrete (SFRCC)
Hu Huang   +4 more
doaj   +1 more source

The Multi-Object, Fiber-Fed Spectrographs for SDSS and the Baryon Oscillation Spectroscopic Survey

open access: yes, 2012
We present the design and performance of the multi-object fiber spectrographs for the Sloan Digital Sky Survey (SDSS) and their upgrade for the Baryon Oscillation Spectroscopic Survey (BOSS).
Abazajian   +93 more
core   +1 more source

Laser‐Welded Cellulose‐Carbon Nanotube Nanocomposites as a 3D Scaffold of Si Anodes for High‐Performance Lithium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A Si anode comprising entangled networks of cellulose and SWCNT (C‐CNT) nanocomposites as an anode electrode for a high‐performance LIB is realized by fully utilizing the generated microstructure of a novel conductive 3D scaffold via a low‐temperature and eco‐friendly process. Additionally, localized heating via photo‐thermal conversion can be utilized
Boeun Ryu   +5 more
wiley   +1 more source

Achieving superior mechanical performance in one-part geopolymer composites through innovative hybrid fiber systems of recycled steel and PVA fibers

open access: yesJournal of Materials Research and Technology
Fiber-Reinforced Geopolymer Composites (FRGCs) typically use mono-fiber reinforcement, often overlooking the potential benefits of hybrid fibers. This article examines the effects of different PVA fibers (thick and thin) and steel fibers (straight ...
Muhammad Zahid   +4 more
doaj   +1 more source

Experimental and numerical analysis of steel fiber reinforced concrete slabs [PDF]

open access: yes, 1996
Steel fiber reinforced concrete (SFRC) has proven to be an attractive material for a wide range of applications in civil construction industry. The excellent performance exhibited by this composite is essentially due to its high energy absorption ...
Barros, Joaquim A. O.   +1 more
core  

The Design and Performance of the MINERvA Detector

open access: yes, 2005
The MINERvA experiment is designed to make precision measurements of various neutrino cross sections in the low energy regime. We describe the detector and give the performance of some of the measured quantities.Comment: 4 pages, 4 pages, 3 figures ...
Budd, H.
core   +2 more sources

Conductance‐Dependent Photoresponse in a Dynamic SrTiO3 Memristor for Biorealistic Computing

open access: yesAdvanced Functional Materials, EarlyView.
A nanoscale SrTiO3 memristor is shown to exhibit dynamic synaptic behavior through the interaction of local electrical and global optical signals. Its photoresponse depends quantitatively on the conductance state, which evolves and decays over tunable timescales, enabling ultralow‐power, biorealistic learning mechanisms for advanced in‐memory and ...
Christoph Weilenmann   +8 more
wiley   +1 more source

Effect of Waste Copper Fibers and Steel Fibers on Mechanical Properties of Aerated-polystyrene Lightweight Concrete

open access: yesJournal of Engineering and Sustainable Development
Fear of the increase in global warming, the construction sector seeks to find an alternative to traditional concrete. This paper aims to create high-performance aerated-polystyrene lightweight concrete reinforced by micro-steel fibers and sustainable ...
Samer Abdulhussein   +3 more
doaj   +1 more source

Design and construction of new central and forward muon counters for CDF II

open access: yes, 2004
New scintillation counters have been designed and constructed for the CDF upgrade in order to complete the muon coverage of the central CDF detector, and to extend this coverage to larger pseudorapidity.
A. Artikov   +38 more
core   +1 more source

Selective Separation of the Rare Earth Elements Dysprosium and Neodymium via Tailoring Nanocellulose Chemical Structure

open access: yesAdvanced Functional Materials, EarlyView.
Dicarboxylate‐modified anionic hairy cellulose nanocrystals exhibit a high selectivity for dysprosium(III) over neodymium(III). This selectivity arises from disordered dicarboxylate cellulose “hairs” that enable cooperative ionic coordination, hydrogen bonding, and strain‐induced conformational shrinkage.
Roya Koshani   +6 more
wiley   +1 more source

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