Results 161 to 170 of about 193,257 (302)
Onsite analysis of data from the Dynamics Explorer (DE) spacecraft [PDF]
The tasks performed by ARC Professional Services Group, Inc. fell into five parts: (1) dynamics explorer (DE) data analysis and modeling; (2) DE project support; (3) chemical release observations support; (4) VLF emissions and plasma instability studies;
Candey, Robert M. +2 more
core +1 more source
Advanced Science, EarlyView.This review summarizes recent advances in four mainstream solution‐based techniques for synthesizing NiOx hole‐transport layers for high‐performance perovskite photovoltaic cells, and highlights the key challenges and future prospects for achieving high efficiency, long‐term stability, and low‐cost perovskite photovoltaic technologies toward ...
Zheng Wu +7 more
wiley +1 more source
Study on the Decoupled Transfer of Heat and Mass in Wire Variable Polarity Plasma Arc Welding. [PDF]
Materials (Basel), 2020 Jiang F +5 more
europepmc +1 more source
Heat sink effects in variable polarity plasma arc welding [PDF]
The Space Shuttle External Tank is fabricated by the variable polarity plasma arc (VPPA) welding process. In VPPA welding, a noble gas, usually argon, is directed through an arc to emerge from the torch as a hot plasma jet.
Abdelmessih, Amanie N.
core +1 more source
Advanced Science, EarlyView.Silicon hot‐carrier photodetectors offer a CMOS‐compatible pathway for SWIR detection but suffer from intrinsically low quantum efficiency. Here, we introduce a quasi‐generalized antireflection coating (QARC) that universally enhances optical absorption and quantum efficiency, enabling the first CMOS‐compatible SWIR imaging with silicon hot‐carrier ...
Eui‐Hyoun Ryu +11 more
wiley +1 more source
Plasma Arc Robot for Direct Wall High-Entropy Alloy Additive Manufacturing. [PDF]
Materials (Basel)Wu W, Wang H, Hu Y, Lu Y, She J, Ren X.
europepmc +1 more source
Investigation of Microstructure and Mechanical Performance of IN738LC Superalloy Thin Wall Produced by Pulsed Plasma Arc Additive Manufacturing. [PDF]
Materials (Basel), 2020 Wang K, Sun Z, Liu Y, Lv Y.
europepmc +1 more source
Recent Advances and Challenges in Ammonia‐Hydrogen Energy Conversion
Advanced Science, EarlyView.This work summarizes the latest progress of various catalytic methods in ammonia‐hydrogen energy conversion. The challenges and outlook of ammonia‐hydrogen energy conversion system are also emphasized. This work expects to build a blueprint of renewable and efficient ammonia‐hydrogen energy conversion systems under mild conditions.
Menghao Lv +6 more
wiley +1 more source
Acoustics of the piezo-electric pressure probe [PDF]
Acoustical properties of a piezoelectric device are reported for measuring the pressure in the plasma flow from an MPD arc. A description and analysis of the acoustical behavior in a piezoelectric probe is presented for impedance matching and damping ...
Dutt, G. S.
core +1 more source
Uranium Doped Gallium Nitride Epitaxial Thin Films
Advanced Electronic Materials, EarlyView.Uranium was controllably added to gallium nitride using molecular beam epitaxy. The uranium atoms segregated into vertically oriented regions with higher doping levels. Concentrations up to a few percent were achieved without showing significant degradation in the crystalline quality or optical characteristics. Low electrical resistivity was maintained
J. Pierce Fix +10 more
wiley +1 more source