Results 61 to 70 of about 3,413,392 (339)

Sol–Gel Derived Polymer Precursors for Stereolithography of ZrC

Advanced Engineering Materials, EarlyView.
ZrC is a critical material target for extreme temperature conditions. This report describes a protocol for preparing ZrC ceramics via stereolithography and examines the impact of the polymer matrix on carbothermal reduction and mechanical stability of 3D printed ZrC.
Charles J. Rafalko, Evelyn Wang, Michael A. Hickner   +2 more
wiley   +1 more source

Racoro Extended-Term Aircraft Observations of Boundary Layer Clouds [PDF]

Bulletin of the American Meteorological Society, 2012
Small boundary-layer clouds are ubiquitous over many parts of the globe and strongly influence the Earths radiative energy balance. However, our understanding of these clouds is insufficient to solve pressing scientific problems. For example, cloud feedback represents the largest uncertainty amongst all climate feedbacks in general circulation models ...
Vogelmann, Andrew M., McFarquhar, Greg M., Ogren, John A., Turner, David D., Comstock, Jennifer M., Feingold, Graham, Long, Charles N., Jonsson, Haflidi H., Bucholtz, Anthony, Collins, Don R., Diskin, Glenn S., Gerber, Hermann, Lawson, R. Paul, Woods, Roy K., Andrews, Elisabeth, Yang, Hee-Jung, Chiu, J. Christine, Hartsock, Daniel, Hubbe, John M., Lo, Chaomei, Marshak, Alexander, Monroe, Justin W., McFarlane, Sally A., Schmid, Beat, Tomlinson, Jason M., Toto, Tami   +25 more
openaire   +2 more sources

Parameter Variation in Planetary Ball Milling of Titanium Aluminide Powder in XHV‐Adequate Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates the effects of milling parameters, including rotational speed, milling duration, and ball‐to‐powder ratio, on TiAl particle size and morphology in an XHV‐equivalent atmosphere. The creation of oxide‐free surfaces enhances the mechanical properties of green bodies.
Jytte Möckelmann, Armin Piwek, Julius Peddinghaus, Kai Brunotte, Bernd-Arno Behrens   +4 more
wiley   +1 more source

Aircraft clouds: from chemtrail pseudoscience to the science of contrails [PDF]

, 2017
The most frequent statements and arguments found in pseudoscience websites and forums supporting the existence of so-called aircraft chemtrails can be refuted with a scientific explanation of the processes resulting in the formation of condensation or ...
Costa, Marcel, Mazón Bueso, Jordi, Pino González, David   +2 more
core   +3 more sources

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

Recognition of Aircraft Activities at Airports on Video Micro-Satellites: Methodology and Experimental Validation

Aerospace, 2022
The remote sensing satellite constellation based on micro-satellites is an important means to construct a global and all-sky earth observation system in the future.
Rui Zhang, Xueyang Zhang, Longlong Xiao, Jiayu Qiu   +3 more
doaj   +1 more source

Entering the Era of Earth Observation-Based Landslide Warning Systems: A Novel and Exciting Framework

IEEE Geoscience and Remote Sensing Magazine, 2020
Early warning systems (EWSs) to detect and monitor landslides are a great challenge. They are important due to the high cost of catastrophic landslides and are challenging because of the difficulty in identifying a diverse range of landslide-triggering ...
K. Dai, Jian-bing Peng, Qin Zhang, Z. Wang, T. Qu, Chaoyang He, Deren Li, Jing-nan Liu, Zhenhong Li, Qiang Xu, R. Burgmann, D. Milledge, R. Tomás, Xuanmei Fan, Chaoying Zhao, Xiaojie Liu   +15 more
semanticscholar   +1 more source

Aero-optical characterization of aircraft optical turrets by holography, interferometry and shadowgraph [PDF]

, 1980
Density variations in the aircraft boundary layer, turret wakes and shock waves create distortion of an optical wavefront through associated refractive index variations. Such effects can be observed directly through optical flow visualization.
Trolinger, J. D.
core   +1 more source

Tailor‐Made Protective LixAlSy Layer for Lithium Anodes to Enhance the Stability of Solid‐State Lithium–Sulfur Batteries

Advanced Materials Interfaces, EarlyView.
An intentionally added, chemically formed LixAlSy coating stabilizes the lithium–electrolyte interface in solid‐state Li–S batteries. The layer suppresses side reactions, preserves smooth charge transfer, and improves ion transport from the start. This approach offers a practical route to more durable solid‐state batteries and a clearer understanding ...
Xinyi Wang, Katja Kretschmer, Sharif Haidar, Georg Garnweitner, Daniel Schröder   +4 more
wiley   +1 more source

Photochemical production of ozone in the upper troposphere in association with cumulus convection over Indonesia [PDF]

, 2002
The Biomass Burning and Lightning Experiment phase A (BIBLE-A) aircraft observation campaign was conducted from 24 September to 10 October 1998, during a La Niña period.
Blake, DR, Higashi, Y, Hu, W, Kawakami, S, Kita, K, Ko, M, Koike, M, Kondo, Y, Machida, T, Miyazaki, Y, Nishi, N, Ogawa, T, Sano, T   +12 more
core   +3 more sources