Results 151 to 160 of about 1,023,117 (334)

Multivariate Frequency and Amplitude Estimation for Unevenly Sampled Data Using and Extending the Lomb–Scargle Method

Sensors
The Lomb–Scargle method (LSM) constitutes a robust method for frequency and amplitude estimation in cases where data exhibit irregular or sparse sampling.
Martin Seilmayer, Thomas Wondrak, Ferran Garcia   +2 more
doaj   +1 more source

High‐Entropy Alloy Design Toward Cobalt Substitution for High Hardness and Low Wear Rate Using X–Cr–Fe–Mn–Ni System

Advanced Engineering Materials, EarlyView.
This study explores the replacement of cobalt using the high‐entropy alloy design strategy for wear‐resistant components operating at high temperatures. Starting from the Cantor alloy, cobalt is substituted with Cu, Al, V, or Mo. Metallurgical and tribological analyses reveal that aluminum, vanadium, and molybdenum effectively strengthen the developed ...
Rafaël Jénot, Laurent Peltier, Fodil Meraghni, Mathieu Marquer, Oriane Baulin, Clotilde Macke‐Bart   +5 more
wiley   +1 more source

ICP slurry introduction for simple and rapid determination of Pb, Mg and Ca in plant roots

Open Chemistry, 2007
Barałkiewicz Danuta, Kanecka-Hanc Anetta, Gramowska Hanka   +2 more
doaj   +1 more source

Microstructural Evolution and Mechanical Performance of Plasma‐Assisted Hybrid Friction Stir Welded Dissimilar Aluminum–Copper Joints

Advanced Engineering Materials, EarlyView.
Plasma‐assisted hybrid friction stir welding of dissimilar AlCu joints employs localized plasma preheating to balance heat input and enhance plastic flow. The optimized process reduces axial force by up to 35%, refines the microstructure, and achieves ≈96% joint efficiency.
Deepak Kumar Yaduwanshi, Pankaj Shrivastava, Ganesh Chouhan, Velaphi Msomi   +3 more
wiley   +1 more source

The Echelon Spectroscope [PDF]

Science, 1898
openaire   +2 more sources

Efficient Multifunctional Response and Polarization Switching in BiFeO3–PbZr0.58Ti0.42O3–MnFe2O4‐Based Triphasic Composites for Advanced Pulsating Applications

Advanced Engineering Materials, EarlyView.
Triphasic BiFeO3–PbZr0.58Ti0.42O3–MnFe2O4 composites exhibit enhanced ferroelectric and magnetic behavior, achieving 70.76% energy‐storage efficiency and improved polarization switching. The coupling between ferroelectric and magnetic phases enables multifunctional performance, making these composites promising candidates for next‐generation energy ...
Hassan Raza Khan, Muzzamal Hussain, Rabia Baqi, Shahid Ali, Abdulaziz Alhazaa, Muhammad Ali Shar, Ammar Tariq, Shahid Atiq   +7 more
wiley   +1 more source

Efficient and Scalable Radiative Cooling for Photovoltaics Using Solution‐Processable and Solar‐Transparent Mesoporous Nanoparticles

Advanced Functional Materials, EarlyView.
Graded refractive index (GRI) structures are prepared from the layer‐by‐layer spray coating of the mesoporous SiO2 nanoparticles, showing high solar transparency and thermal emissivity. Under outdoor conditions, after 50 days, the GRI‐coated photovoltaics show on average 6.65 ± 1.48 °C lower than that of the non‐coated references, maintaining 80.9 ± 8 ...
Heesuk Jung, Sung Yoon Min, Byungsoo Kang, Yongseok Yoo, Jihun Jang, Yeoun‐Woo Jang, Hyojeong Choi, Hyeong Won Lee, Swarup Biswas, Yongju Lee, Mansoo Choi, Phillip Lee, Min Seok Jang, Hyeok Kim, Shu Yang   +14 more
wiley   +1 more source

Crystal structure of 9-benzoyl-5-methoxy-7-phenyl-7-phthalimido- 2,2,3,3-tetramethyl-1,4,6-trioxa-5-phospha(V)spiro[4.4]non-8-en, C62H60N2O14P2 and of dimethyl 3-(4,4,4’,4’,5,5,5’,5’-octamethyl-1,1’,3,3- tetraoxa-2-phospha(V)-spiro[4.4]nonanyl)-2(N,N-dimethyl)succinate), C20H38NO8P, two tetraoxaspiro-phosphorane(V) intermediates

Zeitschrift für Kristallographie - New Crystal Structures, 2000
Neuman A., Leroux Y., El Manouni D., Prangé T.   +3 more
doaj   +1 more source

3D spectroscopic instrumentation

, 2010
53 pages, 6 tables, 17 figures; to appear in ``3D Spectroscopy in Astronomy, XVII Canary Island Winter School of Astrophysics,'' eds. E. Mediavilla, S. Arribas, M. Roth, J. Cepa-Nogue, and F. Sanchez, Cambridge University Press, 2009; high-resolution version available http://www.astro.wisc.edu/~mab/publications/ws3d05 ...
openaire   +2 more sources

Mechanically Adaptable High‐Performance p(SBMA‐MMA) Copolymer Hydrogel with Iron (II/III) Perchlorate for Wearable Thermocell Applications

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
A high‐performance n‐type element for quasi‐solid‐state thermocells has been introduced, outperforming conventional p‐type elements and showcasing the potential to harness body heat as an energy source or power embedded sensors. This advance significantly contributes to waste thermal energy harvesting and wearable technology, paving the way for self ...
Gilyong Shin, Jae Yoon Baek, Ju Hyeon Kim, Ju Hwan Lee, Hyeong Jun Kim, Byeong Jun So, Yuseung Choi, Sungryul Yun, Taewoo Kim, Jei Gyeong Jeon, Tae June Kang   +10 more
wiley   +1 more source