Results 71 to 80 of about 68,121 (308)
, 2011 Non-linear sound is an extreme phenomenon typically observed in solids after violent explosions. But granular media are different. Right when they jam, these fragile and disordered solids exhibit a vanishing rigidity and sound speed, so that even tiny ...
Ari M. Turner +5 more
core +4 more sources
Advanced Functional Materials, EarlyView.Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong +16 more
wiley +1 more source
Ethylene tetrafluoroethylene nanofibers prepared by CO2 laser supersonic drawing
eXPRESS Polymer Letters, 2013 Ethylene tetrafluoroethylene (ETFE) nanofibers were prepared by carbon dioxide (CO2) laser irradiation of asspun ETFE fibers with four different melt flow rates (MFRs) in a supersonic jet that was generated by blowing air into a vacuum chamber through ...
A. Suzuki, H. Hayashi
doaj +1 more source
Test of a NASA blunt body with flares in the JPL 20-inch supersonic and 21-inch hypersonic wind tunnels [PDF]
Aerodynamic characteristics of flares mounted on blunt bodies at supersonic and hypersonic ...
Weaver, R. W.
core +1 more source
Flow visualisation of a normal shock impinging over a rounded contour bump in a Mach 1.3 free-stream [PDF]
, 2016 An experimental study has been conducted to visualise the instantaneous streamwise and spanwise flow patterns of a normal shock wave impinging over a rounded contour bump in a Mach 1.3 free-stream.
Kontis, Konstantinos, Lo, Kin Hing
core +2 more sources
Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications
Advanced Functional Materials, EarlyView.Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai +8 more
wiley +1 more source
Ionization probability of iron particles at meteoritic velocities [PDF]
Ion production for ablation of micron size iron particles moving at supersonic speed in air and ...
Friichtenicht, J. F., Slattery, J. C.
core +1 more source
Advanced Functional Materials, EarlyView.This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner +9 more
wiley +1 more source
Interpreting Aerodynamics of a Transonic Impeller from Static Pressure Measurements
International Journal of Rotating Machinery, 2018 This paper investigates the aerodynamics of a transonic impeller using static pressure measurements. The impeller is a high-speed, high-pressure-ratio wheel used in small gas turbine engines.
Fangyuan Lou +2 more
doaj +1 more source
Advanced Functional Materials, EarlyView.This study demonstrates an alternative method of creating charge‐stable negatively charged nitrogen vacancy (NV−) centers close to the diamond surface without high‐temperature annealing. By illuminating nitrogen‐implanted regions with a continuous‐wave 405 nm laser, NV− centers are induced, exhibiting electron spin coherence properties suitable for ...
Jens Fuhrmann +4 more
wiley +1 more source