Results 91 to 100 of about 122,192 (354)

CMOS‐Compatible HfOx‐Based Radiation Hardening Component for Neuromorphic Computing Applications

Advanced Electronic Materials, EarlyView.
HfOx‐based resistive random‐access‐memory (TiN/Ti/HfOx/RuOx/TiN) is fabricated by CMOS‐compatible materials – ruthenium, with a maskless etching‐free process. After a 5‐Mrad total ionizing dose test, the results showed non‐degradation performance, memory window ≈ 40 with operation power < 2 mW, > 8k endurance cycles, and 15‐year retention, which can be
Yao‐Feng Chang, Yifu Huang, Chin‐Han Chung, Ying‐Chen Chen   +3 more
wiley   +1 more source

On the mean subtree order of trees under edge contraction

Journal of Graph Theory, Volume 102, Issue 3, Page 535-551, March 2023., 2023
Abstract For a tree T $T$, the mean subtree order of T $T$ is the average order of a subtree of T $T$. In 1984, Jamison conjectured that the mean subtree order of T $T$ decreases by at least 1/3 after contracting an edge in T $T$. In this article we prove this conjecture in the special case that the contracted edge is a pendant edge.
Zuwen Luo, Kexiang Xu, Stephan Wagner, Hua Wang   +3 more
wiley   +1 more source

A study of supply chain integration in the aeronautics sector

, 2013
Competitive pressure, high development costs, long lead times, rapidly changing technologies and the risks inherent in projects combined with the delays seen in the latest aircraft models (with the rise in costs that these have entailed) highlight the ...
Rafaela Alfalla-Luque, Carmen Medina-López, Heribert Schrage   +2 more
semanticscholar   +1 more source

Comparative Life Cycle Assessment of Perovskite Solar Cell Production: Mesoporous n‐i‐p Versus Inverted p‐i‐n Architectures

Advanced Energy and Sustainability Research, EarlyView.
This work assesses the environmental impacts associated with the production of perovskite solar cells (PSCs) with two different architectures, mesoporous n‐i‐p and inverted p‐i‐n, using the life cycle assessment methodology. Results indicate that producing mesoporous n‐i‐p PSCs has higher environmental impacts than producing inverted p‐i‐n PSCs, due to
Joana Príncipe, Luísa Andrade, Teresa M. Mata, António A. Martins   +3 more
wiley   +1 more source

Development of non‐destructive analytical strategies based on Raman spectroscopy and complementary techniques for Mars Sample Return tested on Northwest Africa 1950 Martian meteorite

Journal of Raman Spectroscopy, Volume 53, Issue 12, Page 2068-2085, December 2022., 2022
A non‐destructive analytical methodology, based on Raman microscopy (single point and imaging), micro‐energy dispersive X‐ray fluorescence (μED‐XRF) imaging analysis, and scanning electron microscopy coupled to energy dispersive spectroscopy (SEM‐EDS), is suggested for a first analytical characterization for the Martian samples that will be taken to ...
Leire Coloma, Cristina García‐Florentino, Jennifer Huidobro, Imanol Torre‐Fdez, Julene Aramendia, Gorka Arana, Kepa Castro, Juan Manuel Madariaga   +7 more
wiley   +1 more source

Paradoxical aspects of the kinetic equations [PDF]

arXiv, 2003
Two paradoxical aspects of the prevailing kinetic equations are presented. One is related to the usual understanding of distribution function and the other to the usual understanding of the phase space. With help of simple counterexamples and direct analyses, involved paradoxes manifest themselves.
arxiv  

Summary of the 2008 NASA Fundamental Aeronautics Program Sonic Boom Prediction Workshop

, 2013
The Supersonics Project of the NASA Fundamental Aeronautics Program organized an internal sonic boom workshop to evaluate near-field sonic-boom prediction capability at the Fundamental Aeronautics Annual Meeting in Atlanta, Georgia, on 8 October 2008 ...
M. Park, M. Aftosmis, R. L. Campbell, Melissa B. Carter, S. Cliff, L. Bangert   +5 more
semanticscholar   +1 more source

An Omnidirectional, High Power Density Magneto–Mechano–Electric Energy Harvester Using PNN–PZT Piezoceramic Operating in Decoupling Bending Mode

Advanced Energy and Sustainability Research, EarlyView.
Decoupling bending modes in magneto–mechano–electric energy harvesters, featuring two bending modes responding to different excitations with identical resonant frequencies, enables effective harvesting stray magnetic field energy in diverse environments.
Wei Peng, Bin Wang, Jianglei Chang, Zhen Liu, Genshui Wang, Zhi Cheng, Liang Ma, Shuxiang Dong   +7 more
wiley   +1 more source

Operationalizing an integrative socio‐ecological framework in support of global monitoring of land degradation

Land Degradation &Development, Volume 34, Issue 1, Page 109-124, 15 January 2023., 2023
Abstract Despite sustained global efforts to avoid, reduce, and reverse land degradation, estimates of land degradation nationally and regionally vary considerably. Land degradation reduces agricultural productivity, impacts the provision of vital ecosystem services, and disproportionately affects vulnerable populations. The 2030 Agenda for Sustainable
Narcisa G. Pricope, Gabriel A. Daldegan, Alex Zvoleff, Kevin M. Mwenda, Monica Noon, David Lopez‐Carr   +5 more
wiley   +1 more source

Advanced Magnetic Materials for Aeronautics

Fatigue of Aircraft Structures, 2014
In the field of magnetic sensors, magnetic microwires with positive magnetostriction are the materials of the future. Their mechanical and magnetic properties render them ideal materials for applications in aeronautics.
Šmelko Miroslav, Praslička Dušan, Blažek Josef   +2 more
doaj   +1 more source