Results 251 to 260 of about 91,274 (346)

Structure of Stellar Atmospheres. II.

The Astrophysical Journal, 1959
openaire   +2 more sources

Sol–Gel Synthesis of Ca2.5Ag0.3Sm0.2Co4O9 Semiconducting Materials for Thermoelectric Applications in Aerospace Systems

Advanced Engineering Materials, EarlyView.
Ca2.5Ag0.3Sm0.2Co4O9 semiconductor materials are synthesized and produced in this study using the sol–gel and cold pressing techniques for thermoelectric generator applications. As template samples are added, the Seebeck coefficient and power factor values rise, peaking at 800 °C for Ca2.5Ag0.3Sm0.2Co4O9 at 274.47 μV K−1 and 0.58 mW mK−2, respectively.
Enes Kilinc, Fatih Uysal, Mucahit Abdullah Sari, Huseyin Kurt, Erdal Celik   +4 more
wiley   +1 more source

A warm Neptune's methane reveals core mass and vigorous atmospheric mixing. [PDF]

Nature
Sing DK, Rustamkulov Z, Thorngren DP, Barstow JK, Tremblin P, Alves de Oliveira C, Beck TL, Birkmann SM, Challener RC, Crouzet N, Espinoza N, Ferruit P, Giardino G, Gressier A, Lee EKH, Lewis NK, Maiolino R, Manjavacas E, Rauscher BJ, Sirianni M, Valenti JA.   +20 more
europepmc   +1 more source

Self-broadening in Balmer line wing formation in stellar atmospheres

, 2000
P. S. Barklem, N. Piskunov, B. J. O’Mara   +2 more
openalex   +2 more sources

Mitigation of Cracks in High‐Performance Nickel‐Based Superalloys in Powder Bed Fusion Laser Beam of Metals Using a Metal Matrix Composite Approach

Advanced Engineering Materials, EarlyView.
High‐performance nickel‐based superalloys are often not processible in additive manufacturing (AM) due to hot cracking. The findings in this manuscript propose an efficient method to mitigate cracking and enhance mechanical properties of these alloys by producing a metal matrix composite, contributing to the material and process perspective of the AM ...
Klaus Büßenschütt, Maël Pontoreau, Christian Haase, Johannes‐Henrich Schleifenbaum   +3 more
wiley   +1 more source

High‐Resolution Reverse Offset Printed Electroluminescent Multipixel Arrays for Scalable Future Wearable Displays

Advanced Engineering Materials, EarlyView.
This study explores the effects of pixel size and spacing when fabricating electroluminescent (EL) multipixel displays. COMSOL simulations identify the impact of pixel dimensions and spacing on electric field distribution and lighting efficiency. Flexible, high‐resolution EL pixel arrays are reverse offset printed, achieving a 96% reduction in pixel ...
Huanghao Dai, Yuxin Xia, Steve Beeby, Russel Torah   +3 more
wiley   +1 more source

A hot-Jupiter progenitor on a super-eccentric retrograde orbit. [PDF]

Nature
Gupta AF, Millholland SC, Im H, Dong J, Jackson JM, Carleo I, Libby-Roberts J, Delamer M, Giovinazzi MR, Lin ASJ, Kanodia S, Wang XY, Stassun K, Masseron T, Dragomir D, Mahadevan S, Wright J, Alvarado-Montes JA, Bender C, Blake CH, Caldwell D, Cañas CI, Cochran WD, Dalba P, Everett ME, Fernandez P, Golub E, Guillet B, Halverson S, Hebb L, Higuera J, Huang CX, Klusmeyer J, Knight R, Leroux L, Logsdon SE, Loose M, McElwain MW, Monson A, Ninan JP, Nowak G, Palle E, Patel Y, Pepper J, Primm M, Rajagopal J, Robertson P, Roy A, Schneider DP, Schwab C, Schweiker H, Sgro L, Shimizu M, Simard G, Stefánsson G, Stevens DJ, Villanueva S, Wisniewski J, Will S, Ziegler C.   +59 more
europepmc   +1 more source

Influence of Heat Treatment on Microstructure and Mechanical Properties at Elevated Temperatures of Nonweldable Ni‐Based Alloy Printed by Fused Filament Fabrication

Advanced Engineering Materials, EarlyView.
The fused filament‐fabricated MAR‐M247 alloy without hot isostatic pressing shows the lowest porosity of 4%. Heat treatment at 1220 °C produces coarse precipitates and carbides. Specimens heat‐treated at 1220 °C exhibit higher tensile strength (683 MPa) and elongation (10%) at room temperature.
Haneen Daoud, Ying Zheng, Agata Kulig, Natalja Agarkov, Esma Mese, Wolfgang Hofmann, Peter Würtele, Uwe Glatzel   +7 more
wiley   +1 more source

A temperate super-Jupiter imaged with JWST in the mid-infrared. [PDF]

Nature
Matthews EC, Carter AL, Pathak P, Morley CV, Phillips MW, P M SK, Feng F, Bonse MJ, Boogaard LA, Burt JA, Crossfield IJM, Douglas ES, Henning T, Hom J, Ko CL, Kasper M, Lagrange AM, Petit Dit de la Roche D, Philipot F.   +18 more
europepmc   +1 more source

Reactive Interaction and Wetting of Fe‐ and Mn‐Containing, Secondary AlSi Alloys with Manganese Oxide Ceramic Filter Material for Fe Removal

Advanced Engineering Materials, EarlyView.
Fe‐ and Mn‐containing AlSi alloys undergo aluminothermic reaction with Mn oxide in sessile‐drop and crucible experiments forming poor‐wetting Al2O3 while Mn enriches in the alloy. Primary Fe‐containing particles are preferentially attached to the Mn oxide.
Hanka Becker, Simon Waschull, Beate Fankhänel, Claudia Voigt, Alexandros Charitos, Christos G. Aneziris, Andreas Leineweber   +6 more
wiley   +1 more source