Results 51 to 60 of about 1,395,447 (291)

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Machine learning predicts lung recruitment in acute respiratory distress syndrome using single lung CT scan

Annals of Intensive Care, 2023
Background To develop and validate classifier models that could be used to identify patients with a high percentage of potentially recruitable lung from readily available clinical data and from single CT scan quantitative analysis at intensive care unit ...
Francesca Pennati, Andrea Aliverti, Tommaso Pozzi, Simone Gattarello, Fabio Lombardo, Silvia Coppola, Davide Chiumello   +6 more
doaj   +1 more source

Nonlocal density functionals and the linear response of the homogeneous electron gas

, 1997
The known and usable truly nonlocal functionals for exchange-correlation energy of the inhomogeneous electron gas are the ADA (average density approximation) and the WDA (weighted density approximation). ADA, by design, yields the correct linear response
A. Holas, B. Farid, D. J. Singh, D. J. Singh, D. J. Singh, I. I. Mazin, J. A. Alonso, J. P. A. Charlesworth, J. P. Perdew, M. Sadd, O. Gunnarsson, O. Gunnarsson, O. Gunnarsson, O. Gunnarsson, O. V. Gritsenko, S. Goedecker, S. Moroni   +16 more
core   +1 more source

The seasonal cycle of ocean-atmosphere CO2 Flux in Ryder Bay, West Antarctic Peninsula [PDF]

, 2015
Approximately 15 million km2 of the Southern Ocean is seasonally ice covered, yet the processes affecting carbon cycling and gas exchange in this climatically important region remain inadequately understood.
Arrigo, Bakker, Bakker, Bates, Delille, Delille, Dickson, Dieckmann, Dorothee C. E. Bakker, Fairall, Fletcher, Gareth A. Lee, Geilfus, Gibson, Gosink, Goyet, Gruber, Hugh J. Venables, Johnson, Lavergne, Le Quéré, Lenton, Lenton, Li, Loose, Loose, Lovenduski, Martin T. Johnson, Meredith, Meredith, Meredith, Michael P. Meredith, Miller, Millero, Mintrop, Mucci, Nomura, Oliver J. Legge, Papadimitriou, Peter J. Brown, Purkey, Roden, Rysgaard, Rysgaard, Semiletov, Stammerjohn, Stephens, Sweeney, Takahashi, Thompson, Vaughan, Venables, Venables, Wanninkhof, Wanninkhof, Wanninkhof, Weiss, Weiss, Zemmelink   +58 more
core   +1 more source

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

Advanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai, Xinrui Sarah Niu, Zhao Qin   +2 more
wiley   +1 more source

Greenhouse Gas Emissions Dynamics in Restored Fens After In-Situ Oil Sands Well Pad Disturbances of Canadian Boreal Peatlands

Frontiers in Earth Science, 2020
In-situ oil extraction activities impact the vast mosaic of boreal wetlands and uplands. Peatland restoration in these regions aims at reestablishing crucial peatland functions, such as peat accumulation and carbon (C) sequestration.
Meike Lemmer, Line Rochefort, Maria Strack, Maria Strack   +3 more
doaj   +1 more source

Impact of Industry-Specific Risk Factors on Stock Returns of the Malaysian Oil and Gas Industry in a Structural Break Environment

Mathematics, 2022
This study examines the impact of industry-specific risk factors such as oil price, gas price, and exchange rate on stock returns of Malaysian oil and gas firms in a structural break environment by employing the break least square approach of Bai and ...
Mohammad Enamul Hoque, Soo-Wah Low
doaj   +1 more source

Exact-exchange density-functional theory for quasi-two-dimensional electron gases

, 2002
A simple exact-exchange density-functional method for a quasi-two-dimensional electron gas with variable density is presented. An analytical expression for the exact-exchange potential with only one occupied subband is provided, without approximations ...
A. Görling, A. Görling, A.R. Goñi, C. R. Proetto, F. A. Reboredo, F.A. Reboredo, J.B. Krieger, J.F. Janak, J.P. Perdew, L. Pollack, M. Städele, M. Städele, P. Hohenberg, R.T. Sharp, S. Ivanov, T. Ando, W. Kohn, W. Kohn, Y-H Kim, Y. Takada   +19 more
core   +1 more source

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

Advanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira, Marcella Gaute Cavalcante Xavier, Abdoul‐Aziz Bogno, Piter Gargarella, José Eduardo Spinelli   +4 more
wiley   +1 more source

What have we learned from antiproton proton scattering? [PDF]

, 1996
From recent charge exchange measurements in the extreme forward direction, an independent and precise determination of the pion nucleon coupling constant is possible.
Ahmidouch, Ahmidouch, Amado, Amsler, Batty, Bernard, Bertini, Birsa, Birsa, Blomgren, Bradamante, Bradamante, Brown, Brown, D'Agostini, Dalkarov, Dalkarov, Dover, Dover, Ericson, Ericson, Ericson, F. Myhrer, Grein, Haidenbauer, Lacombe, Lamanna, Lee, Liu, Locher, Locher, Loiseau, Machleidt, Mizutani, Moussallam, Moussallam, Mull, Mull, Myhrer, Myhrer, Nagels, Oka, Perrot-Kunne, Phillips, Pignone, Richard, Shapiro, Stoks, Timmermans, Timmermans, Vandermeulen   +50 more
core   +2 more sources