Results 31 to 40 of about 217,272 (213)

Mechanistic Insights into the Structural Evolution of ZIF‐67 via Electrospinning Strategy Toward High Electromagnetic Wave Absorption Performance of ZIF‐67‐Derived Carbon Nanofibers

Advanced Science, EarlyView.
With 5G and AI robotics rising, electromagnetic radiation risks signal security and health. This work investigates the electromagnetic wave absorption of Co/CNF composites via in situ and ex situ electrospinning strategies. The in situ synthesized sample exhibits superior absorption properties due to enhanced structural uniformity, improved Co ...
Xinhui Cao, Xinyi Wu, Xue Wang, Jiamei Luo, Zhe Zhang, Yi Xue, Guoliang Zhang, Liying Zhang, Hui Zhang, Jianyong Yu   +9 more
wiley   +1 more source

CMOS‐Compatible HfOx‐Based Radiation Hardening Component for Neuromorphic Computing Applications

Advanced Electronic Materials, EarlyView.
HfOx‐based resistive random‐access‐memory (TiN/Ti/HfOx/RuOx/TiN) is fabricated by CMOS‐compatible materials – ruthenium, with a maskless etching‐free process. After a 5‐Mrad total ionizing dose test, the results showed non‐degradation performance, memory window ≈ 40 with operation power < 2 mW, > 8k endurance cycles, and 15‐year retention, which can be
Yao‐Feng Chang, Yifu Huang, Chin‐Han Chung, Ying‐Chen Chen   +3 more
wiley   +1 more source

Solar vs. Fission Surface Power for Mars

, 2016
A multi-discipline team of experts from the National Aeronautics and Space Administration (NASA) developed Mars surface power system point design solutions for two conceptual missions.
M. Rucker, S. Oleson, P. George, G. Landis, J. Fincannon, A. Bogner, Robert Jones, Elizabeth R. Turnbull, M. Martini, J. Gyekenyesi, Anthony J Colozza, P. Schmitz, Thomas W. Packard   +12 more
semanticscholar   +1 more source

Flexible Thermoelectric Generators Based on Single‐Walled Carbon Nanotube/Poly(aniline‐co‐acrylonitrile) Composites

Advanced Electronic Materials, EarlyView.
The 70% single‐walled carbon nanotube (SWNT) / 30% poly(90aniline‐co‐10acrylonitrile) composite exhibited a 1.7‐fold improvement in thermoelectric power factor as compared to SWNT/polyaniline (PANI) prepared under identical conditions. This work demonstrates that wrapping SWNTs with copolymers comprising monomers of conducting and insulating polymers ...
Fuat Erden, Ilhan Danaci, Salih Ozbay
wiley   +1 more source

Towards robust aero-thermodynamic predictions for re-usable single-stage to orbit vehicles [PDF]

, 2012
Re-usable single stage to orbit launch vehicles promise to reduce the cost of access to space, but their success will be particularly reliant on accurate and robust modelling of their aero-thermodynamic characteristics.
Anderson J.D., Bird G.A., Gentry A.E., Heppenheimer T.A., Hirschel E.H., Lees L., Varvill R., Varvill R.   +7 more
core   +1 more source

Effect of Propagating Dopant Reactivity on Lattice Oxygen Loss in LLZO Solid Electrolyte Contacted with Lithium Metal

Advanced Energy Materials, EarlyView.
The decomposition of Nb‐substituted LLZO solid electrolytes is reported through a propagating reaction between Nb5+ dopants and the Li metal electrode. This work suggests dopants that segregate to interfaces/grain boundaries in LLZO will exhibit reactivity that can propagate into bulk and shed light on new mechanisms for the problematic role of oxygen ...
Michael J. Counihan, Zachary D. Hood, Hong Zheng, Till Fuchs, Leonardo Merola, Matilde Pavan, Sebastian L. Benz, Tianyi Li, Artem Baskin, Junsoo Park, Joakim Halldin Stenlid, Xinglong Chen, Daniel P. Phelan, John W. Lawson, Justin G. Connell, Jürgen Janek, Felix H. Richter, Sanja Tepavcevic   +17 more
wiley   +1 more source

Channel flow of Ellis fluid due to cilia motion

Nonlinear Engineering
In this report, a theoretical study is directed at the cilia motion of the Ellis fluid model due to the propagation of an infinite metachronal wave train traveling along the walls of the channel due to the continuous beating of the cilia.
Arain Muhammad Bilal, Shaheen Sidra, Nisar Kottakkaran Sooppy, Hu Junhui, Muhammad Taseer   +4 more
doaj   +1 more source

Optic Flow Based Visual Guidance: From Flying Insects to Miniature Aerial Vehicles

, 2009
Insects and birds have been in the sensory-motor control business for more than 100 million years. The manned aircraft developed over the last 100 years rely on a similar lift to that generated by birds’ wings.
N. Franceschini, F. Ruffier, J. Serres, S. Viollet   +3 more
semanticscholar   +1 more source

Aircraft control system [PDF]

, 1973
An aircraft control system is described which is particularly suited to rotary wing aircraft. Longitudinal acceleration and course rate commands are derived from a manual control stick to control translational velocity of the aircraft along a flight path.
Koziol, J. S., Jr., Rempfer, P. S., Robertson, A. J., Stevenson, L. E.   +3 more
core   +1 more source

Comparative Life Cycle Assessment of Perovskite Solar Cell Production: Mesoporous n‐i‐p Versus Inverted p‐i‐n Architectures

Advanced Energy and Sustainability Research, EarlyView.
This work assesses the environmental impacts associated with the production of perovskite solar cells (PSCs) with two different architectures, mesoporous n‐i‐p and inverted p‐i‐n, using the life cycle assessment methodology. Results indicate that producing mesoporous n‐i‐p PSCs has higher environmental impacts than producing inverted p‐i‐n PSCs, due to
Joana Príncipe, Luísa Andrade, Teresa M. Mata, António A. Martins   +3 more
wiley   +1 more source