Results 101 to 110 of about 253,257 (300)

Enhancement of the Critical Current Density of YBa2Cu3Ox Superconductors under Hydrostatic Pressure

, 2005
The dependence of the critical current density Jc on hydrostatic pressure to 0.6 GPa is determined for a single 25-degree [001]-tilt grain boundary in a bicrystalline ring of nearly optimally doped melt-textured YBa2Cu3Ox. Jc is found to increase rapidly
Chen, L., Claus, H., Schilling, J. S., Tomita, T., Veal, B. W.   +4 more
core   +1 more source

Profiling the differentially expressed genes in two rice varieties during rapid grain-filling stages [PDF]

, 2011
Grain filling is an important agronomic trait, which directly affects the final yield of rice. Partially filled and empty rice grains are among the factors that limit the yield of MR219, one of the highest yielding rice varieties in Malaysia.
Chan, Wai Sun, Chivukula, Sudha V., Ho, Chai Ling, Namasivayam, Parameswari, Teo, Chin Jit, Thuc, Le Vinh, Yeoh, Keat Ai   +6 more
core   +1 more source

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm, Jana Hubálková, Christian Schimpf, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +6 more
wiley   +1 more source

Characterization of a Recyclate‐Based MgO‐Steel Composite As‐Sintered Inert Anode Candidate After Exposure to Cryolite Electrolysis

Advanced Engineering Materials, EarlyView.
Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi, Alexander Adamczyk, Nora Brachhold, Gert Schmidt, Jana Hubálková, R. Gumeniuk, Alexandros Charitos, Christos G. Aneziris   +7 more
wiley   +1 more source

Carbon stable isotope analysis of cereal remains as a way to reconstruct water availability: preliminary results [PDF]

, 2011
Reconstructing past water availability, both as rainfall and irrigation, is important to answer questions about the way society reacts to climate and its changes and the role of irrigation in the development of social complexity.
AM Rosen, B Finlayson, BD Marino, C Grigson, C Körner, C Körner, C Migowski, DH Price, DW McCreery, E Galili, E Jenkins, E Kaptijn, E Peltenburg, Emma Jenkins, F Braemer, FB Salisbury, G Fiorentino, G Fiorentino, G Jones, G Palumbo, G Philip, G Rollefson, GD Farquhar, GD Farquhar, GD Farquhar, GD Farquhar, GK Gillmore, GR Stewart, Gundula Müldner, H Helbaek, H Weiss, HR Stokes, I Kuijt, J Codron, J Doorenbos, J Hoefs, J Mabry, J Mabry, J Sealy, JL Araus, JL Araus, JL Araus, JL Araus, JL Araus, JN Postgate, JP Ferrio, JP Ferrio, JP Ferrio, JP Ferrio, JP Ferrio, JP Oleson, JR Ehleringer, JW Laundré, K Bastert, K Prag, KT Hubick, KW Butzer, L Cabrera-Bosquet, LT Tieszen, M Aguilera, M Charles, M Davies, M Harrower, M Madella, M Staubwasser, MH O’Leary, MW Ertsen, N Roberts, NK Fageria, P Monneveux, P Wright, Pascal Flohr, PB deMenocal, PG Whitehead, PMMG Akkermans, R Matthews, R Shaheen, RB Austin, RC Hunt, RS Wenke, RTJ Cappers, S Fujii, S Fujii, S Helms, S Mithen, S Riehl, S Riehl, SJ Bourke, SW Helms, TE Dawson, TE Levy, THE Heaton, THE Heaton, TW Boutton, TW Boutton, U Bellwald, VL Scarborough, Y Garfinkel   +97 more
core   +1 more source

Population of Nonmetallic Inclusions in Liquid High‐Silicon Electrical Steel in Contact With MgO–C Refractories Based on Recyclates and Environmentally Friendly Binders

Advanced Engineering Materials, EarlyView.
The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert, Matheus Roberto Bellé, Florian Kerber, Dinesh Kumar Gunasekar, Hans‐Jörn Weddige, Christos G. Aneziris, Olena Volkova   +6 more
wiley   +1 more source

Thermoelectric performance of granular semiconductors [PDF]

, 2009
We study thermoelectric properties of granular semiconductors with weak tunneling conductance between the grains, g_t < 1. We calculate the thermopower and figure of merit taking into account the shift of the chemical potential and the asymmetry of the ...
Andreas Glatz, B. I. Shklovskii, D. M. Rowe, I. P. Zvyagin, I. S. Beloborodov, J. Ziman, M. V. Simkin, N. F. Mott, O. E. Parfenov, V. V. Kosarev, V. V. Kosarev   +10 more
core   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

Investigation of Oxygen‐Free Wetting Behavior of Aluminum on Copper via Molecular Dynamics Simulations and Experiments

Advanced Engineering Materials, EarlyView.
The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu, Timon Steinhoff, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Christian Klose, Ludger Overmeyer, Hans‐Jürgen Maier, Nina Merkert   +8 more
wiley   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source