Results 61 to 70 of about 637,903 (236)

Decoding Synergistic Pathways in Bimetallic MOFs for Advanced Oxidation Processes

open access: yesAdvanced Materials, EarlyView.
This review presents a unified framework linking metal pairing and framework design with electronic structure, redox cycling, oxidant activation, reactive‐species generation, and catalytic performance across photocatalytic and oxidant‐based BMOF‐AOPs. The resulting design principles guide the development of hydrolytically stable and efficient BMOFs for
Karim El‐Naggar   +2 more
wiley   +1 more source

High‐Performance Piezoelectric Nanogenerators Based on Wurtzite BeO Nanowire Arrays

open access: yesAdvanced Materials Technologies, EarlyView.
This study demonstrates high‐performance piezoelectric nanogenerators based on 1D BeO nanowire arrays. The BeO nanowires exhibit a high piezoelectric coefficient (∼15.8 pm V−1) and deliver an output voltage of ∼26.1 V and power density of ∼0.32 µW cm−2.
Yoonseo Jang   +7 more
wiley   +1 more source

Demo 23-08 Knife Edge Diffraction

open access: yes, 2001
A knife edge is slowly moved into the laser beam as the laser light is viewed on a distant screen, as seen in Figure 1. As the knife edge is inserted into the beam, the diffraction pattern of the knife edge is observed on the ...

core  

3D‐Printed Dual‐Doped Ag2Se‐Based Thermoelectric Films With Enhanced Thermal Stability

open access: yesAdvanced Materials Technologies, EarlyView.
Sb–Se dual doping enhances the thermal stability of Ag2Se‐based thermoelectric systems. The compositionally tuned nano‐ink is printed into flexible films by direct ink writing (DIW), retaining improved thermoelectric properties after annealing up to 400°C.
Ahasun Habib Hridoy   +8 more
wiley   +1 more source

Modelamiento del proceso de carbonatación del hormigón (UR-CORE), con datos de conversión fraccional obtenidos a través de experimentos de difracción de neutrones monitoreados in-situ Modelling of the carbonation of concrete (UR-CORE) from fractionafconversion data obtained through in situ monitored neutrón diffraction experiments

open access: yesRevista Ingeniería de Construcción, 2009
Una de las principales causas de despasivación de las armaduras embebidas en hormigón es la denominada carbonatación, que consiste en la neutralización de la matriz de cemento como consecuencia de su interacción con el C0(2) atmosférico. En este trabajo,
Marta Castellote, Carmen Andrade
doaj  

Effect of Collimation on Diffraction Signal-to-Background Ratios at a Neutron Diffractometer

open access: yesQuantum Beam Science
High diffraction signal-to-background ratios (SBRs), the ratio of diffraction peak integrated intensity over its background intensity, are desirable for a neutron diffractometer to acquire good statistics for diffraction pattern measurements and ...
Dunji Yu   +5 more
doaj   +1 more source

Crystal Structure Investigation of Ferritic 73Fe24Cr2Si0.8Mn0.1Ni Steel for Multi-purpose Structural Material Applications

open access: yesInternational Journal of Technology, 2018
Microstructural identification of synthesized steel with significant local content has been carried out. Alloy ingot was prepared using a casting technique. The samples were then formed into bulk steel by a machining process.
Parikin Parikin   +4 more
doaj   +1 more source

Non-Destructive and Micro-Invasive Techniques for Characterizing the Ancient Roman Mosaic Fragments

open access: yesApplied Sciences, 2020
The color characteristics, vibration spectra, phase and mineral composition, internal structural organization of several fragments of the ancient Roman mosaics from the Roman Mosaic Museum, Constanta, Romania were studied by non-destructive (Chromatic ...
Rodica Mariana Ion   +13 more
doaj   +1 more source

Thermodynamics of Concomitant Charge‐Transfer, Antiferromagnetic, and Isostructural Phase Transitions in Barocaloric ACu3Fe4O12 Quadruple Perovskites

open access: yesAdvanced Science, EarlyView.
A copper‐iron charge transfer instability drives concomitant electronic, magnetic, and isostructural phase transitions in ACu3Fe4O12${\rm ACu}_3{\rm Fe}_4{\rm O}_{12}$, with an inverse barocaloric effect. A minimal Landau theory ties these thermodynamic signatures together, revealing a pressure‐independent transition entropy with comparable charge and ...
Jefferson Delgado‐Quesada   +1 more
wiley   +1 more source

Diffraction Plane Dependence of Micro Residual Stresses in Uniaxially Extended Carbon Steels

open access: yesAtom Indonesia, 2010
In the stress measurement using X-ray or neutron diffraction, an elastic anisotropy as well as a plastic anisotropy of crystal must be carefully considered.
T. Hanabusa   +3 more
doaj   +1 more source

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