Results 111 to 120 of about 213,036 (304)

Measurements of Mass Flow in the Transition Region and Inner Corona [PDF]

Symposium - International Astronomical Union, 1980
A recent sounding rocket experiment has provided high spectral resolution line profiles across the solar disk. The objective of this experiment is to provide information on the systematic velocity fields at the base of the corona by observing the displacement, width and shape of EUV emission lines.
openaire   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

Do roads lead to grassland degradation or restoration? A case study in Inner Mongolia, China

, 2011
We use satellite remote sensing data of grassland cover in Inner Mongolia, China to test whether the existence of and the size of roads in 1995 is associated with the nature of the grassland in 2000 and/or if it affects the rate of change of the ...
Rozelle,S, John Gibson, Qiuqiong Huang, Huang, Jikun, Jikun Huang, Huang, Qiuqiong, Gibson, John, Xiangzheng Deng, Deng,XZ, Scott Rozelle, Huang,QQ, Huang,JK, Rozelle, Scott, Gibson,J, Deng, Xiangzheng   +14 more
core   +1 more source

Systematic Assessment of Disk Truncation in the Black Hole X-Ray Binary Swift J1727.8–1613 Using NICER

The Astrophysical Journal
The 2023/2024 NICER monitoring campaign of the 7 Crab bright black hole X-ray binary Swift J1727.8–1613 covered the outburst in almost all accretion states.
Ole König, James F. Steiner, Niek Bollemeijer, Riley M. T. Connors, Thomas Dauser, Michal Dovčiak, Ningyue Fan, Javier A. García, David Horn, Adam Ingram, Matteo Lucchini, Guglielmo Mastroserio, Cal Miller, Edward Nathan, Michael A. Nowak, Katja Pottschmidt, Ron Remillard, Yujia Song, Jiří Svoboda, Michiel van der Klis, Santiago Ubach, Jörn Wilms, Yuexin Zhang   +22 more
doaj   +1 more source

Design Guidelines and Performance Analysis of a Wideband Coaxial Horn Antenna Fabricated via Additive Manufacturing

IEEE Open Journal of Antennas and Propagation
This work introduces a Ka-band coaxial horn antenna that incorporates a specialized dielectric supporting structure and a transition to a 2.4 mm connector.
Eligia Simionato, Ivan Aldaya, Jose A. de Oliveira, Andre L. Jardini, Julian Avila, Guilherme S. da Rosa, Rafael A. Penchel   +6 more
doaj   +1 more source

Soft Mechanical‐Electrical Logic Using Liquid Metal‐Filled 3D‐Printed Architectures

Advanced Engineering Materials, EarlyView.
We present 3D‐printed soft mechanical–electrical logic elements that use liquid metal–filled silicone tubes actuated by thermoplastic polyurethane/polylactic acid (TPU/PLA) architectures to produce Boolean operations. Complementary normally open and normally closed unit cells perform repeatable binary transitions and can be combined into more complex ...
Christoph Lehmann, Ryan Kalgreen, Laura M. Comella   +2 more
wiley   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Simulated acoustic emissions from coupled strings

, 2013
We consider traveling transverse waves on two identical uniform taut strings that are elastically coupled through springs that gradually decrease their stiffness over a region of finite length.
Chadwick, Richard S, Lamb, Jessica S, Jessica S. Lamb, Daphne Manoussaki, Richard S. Chadwick, Manoussaki, Daphne   +5 more
core   +1 more source

Improving the output voltage waveform of an intense electron-beam accelerator based on helical type Blumlein pulse forming line

Physical Review Special Topics. Accelerators and Beams, 2010
The Blumlein pulse forming line (BPFL) consisting of an inner coaxial pulse forming line (PFL) and an outer coaxial PFL is widely used in the field of pulsed power, especially for intense electron-beam accelerators (IEBA).
Xin-Bing Cheng, Jin-Liang Liu, Hong-Bo Zhang, Jia-Huai Feng, Bao-Liang Qian   +4 more
doaj   +1 more source

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

Advanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source