Results 81 to 90 of about 156,000 (294)

Irradiated Atmospheres. II. Interplay between Scattering and Vertical-mixing-induced Energy Transport

The Astrophysical Journal
Scattering is crucial for the atmospheric thermal profiles. The energy transport by vertical mixing plays an essential role in the greenhouse or anti-greenhouse effect.
Zhen-Tai Zhang, Wei Zhong, Xianyu Tan, Bo Ma, Ruyi Wei, Cong Yu   +5 more
doaj   +1 more source

Engineered Mycelial Scaffolds With Tunable Ultraviolet Protection, Wettability, Thermal Stability, and Spatial Mechanics

Advanced Engineering Materials, EarlyView.
Fungal mycelia grown into biodegradable scaffolds and infused with titania nanoparticles show enhanced ultraviolet shielding, thermal protection, and surface nonwettability. Properties were tuned by drying methods, revealing structure–function relationships.
Juwon S. Afolayan, Xin Zhang, Carole C. Perry   +2 more
wiley   +1 more source

Influence of the Gravitational Darkening Effect on the Spectrum of a Hot, Rapidly Rotating Neutron Star. II. Iron Lines

The Astrophysical Journal
Rapidly rotating neutron stars are similar to highly flattened ellipsoids. Observed spectra of flattened stars must exhibit effects of nonspherical shape and gravitational darkening.
Agnieszka Majczyna, Jerzy Madej, Agata Różańska, Mirosław Należyty   +3 more
doaj   +1 more source

Milne-Eddington Solutions for Relativistic Plane-Parallel Flows

, 2009
Radiative transfer in a relativistic plane-parallel flow, e.g., an accretion disk wind, is examined in the fully special relativistic treatment. Under the assumption of a constant flow speed, for the relativistically moving atmosphere we analytically ...
Fukue, J.
core   +1 more source

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

Advanced Engineering Materials, EarlyView.
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm, André B. Baldissera, Rainer Völkl, Uwe Glatzel   +3 more
wiley   +1 more source

Features tubular furnaces with fan and acoustic grazing flame burners

Известия высших учебных заведений: Проблемы энергетики, 2017
The paper presents the results of thermal and aerodynamic calculations in radiation chamber tubular furnaces with gas fan and acoustic burners grazing flame within the differential method for thermal calculating furnaces.
D. B. Vafin, M. A. Butyakov, D. A. Sadykova   +2 more
doaj   +1 more source

Radiative transfer in highly scattering materials - numerical solution and evaluation of approximate analytic solutions [PDF]

Numerical solutions for radiative transport in a class of anisotropically scattering materials are presented. Conditions for convergence and divergence of the iterative method are given and supported by computed results. The relation of two flux theories
Alikhan, A., Drago, D. W., Reynolds, A. C., Jr., Weston, K. C.   +3 more
core   +1 more source

Radiative transfer with scattering for domain-decomposed 3D MHD simulations of cool stellar atmospheres

, 2010
We present the implementation of a radiative transfer solver with coherent scattering in the new BIFROST code for radiative magneto-hydrodynamical (MHD) simulations of stellar surface convection.
Allende Prieto, Allison, Anderson, Asplund, B. V. Gudiksen, Bautista, Bautista, Bell, Bell, Bell, Broad, Bruls, Caffau, Cannon, Collet, Doyle, Dravins, Däppen, Feautrier, Fritsch, Gavrila, Gustafsson, Gustafsson, Gustafsson, Gustafsson, Hauschildt, Hauschildt, Heinemann, Holweger, Hummer, J. Leenaarts, John, John, Jørgensen, Karzas, Kunasz, Kurucz, Kurucz, Langhoff, M. Asplund, M. Carlsson, Mihalas, Mihalas, Mihalas, Muthsam, Nahar, Nahar, Nahar, Nahar, Nahar, Nahar, Nahar, Nahar, Nahar, Nahar, Nordlund, Nordlund, Olson, Peach, Pereira, Pereira, Peytremann, R. Collet, R. Trampedach, Ramsbottom, Ramírez, Seaton, Short, Skartlien, Stancil, Stein, Trujillo Bueno, V. H. Hansteen, van Regemorter, Victor, Vögler, Vögler, W. Hayek, Wedemeyer, Wehrse, Wishart   +80 more
core   +1 more source

Phosphor modeling based on fluorescent radiative transfer equation

Optics Express, 2018
The behaviors of the light propagation in the phosphor play a vital role in determining the optical performance of the phosphor-converted light-emitting diodes (pc-LEDs). In this paper, we presented a general model based on the radiative transfer equation integrated with fluorescence (FRTE) to describe the overall light propagating properties in the ...
Yupu Ma, Meng Wang, Jie Sun, Run Hu, Xiaobing Luo   +4 more
openaire   +2 more sources

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