Results 121 to 130 of about 216,678 (321)
Advanced Materials Technologies, EarlyView.Laser‐assisted synthesis enables rapid (within 1 h) and high‐yield (≥90%) production of Co‐MOFs with mesoporous structures, tunable magnetic and optical properties, and efficient adsorption of N2, CH4, and CO2 for low‐energy gas separation. DFT calculations elucidate the electronic structure and adsorption behavior.
Saliha Mutlu +10 more
wiley +1 more source
Approaching the Black Hole by Numerical Simulations
Universe, 2019 Black holes represent extreme conditions of physical laws. Predicted about a century ago, they are now accepted as astrophysical reality by most of the scientific community.
Christian Fendt
doaj +1 more source
BROADBAND PERFORMANCE OF MICRO-PERFORATED ACOUSTIC BLACK HOLES IN DUCTS
[ES] El diseño de silenciadores compactos instalados en conductos para la atenuación de banda ancha en el margen de las bajas frecuencias es importante en sistemas de aire acondicionado, revestimientos de ventiladores o silenciadores de vehículos. Los agujeros negros acústicos (ABH) abiertos son una solución adecuada que atrapan y disipan ondas sonoras
Teresa Bravo +4 more
openalex +4 more sources
Limits on the Position Wander of Sgr A*
, 2008 We present measurements with the VLBA of the variability in the centroid position of Sgr A* relative to a background quasar at 7-mm wavelength. We find an average centroid wander of 71 +/- 45 micro-arcsec for time scales between 50 and 100 min and 113 +/-
Abraham Loeb +7 more
core +1 more source
A Pressure Microsensor Made of Parylene‐C for Use as Medical Implant
Advanced Materials Technologies, EarlyView.A monolithic parylene‐C pressure sensor with gold strain gauges provides 6.2 μV$\mu{\rm V}$·mmHg$\cdot{\rm mmHg}$−1$^{-1}$ sensitivity. The morphology of a sputtered thin film strain sensor is granular/columnar, which results in a high gauge factor of 7.5. Thermal bonding and parylene‐C coating create a hermetic cavity.
Ann‐Kathrin Klein +2 more
wiley +1 more source
Shaping Carbon Nitrides for Advanced Macrostructures
Advanced Materials Technologies, EarlyView.This review examines how carbon nitride can be shaped through a range of printing and interfacial assembly methods. By bringing together additive manufacturing and liquid–liquid structuring concepts, carbon nitride is moving beyond its traditional powder‐based photocatalyst form toward digitally designed robust macroscale architectures with high design
Simona Baluchová, Baris Kumru
wiley +1 more source
Radio follow-up observations of stellar tidal disruption flares: Constraints on off-axis jets
EPJ Web of Conferences, 2012 Observations of active galactic nuclei (AGN) and X-ray binaries have shown that relativistic jets are ubiquitous when compact objects accrete. One could therefore anticipate the launch of a jet after a star is disrupted and accreted by a massive black ...
Körding E. +3 more
doaj +1 more source
Gravitational Waves Emitted by Micro Black Hole Binaries
, 2019 This paper was written to graduate and postgraduate students of Physics. We study the emission of gravitational waves by binaries composed by micro non-charged black holes (BH). We use General Relativity and suppose that these BH also obey Quantum Mechanics.
openaire +1 more source
Advanced Robotics Research, EarlyView.This work presents the MicroRoboScope, a highly integrated, compact, and portable microrobotic experimentation platform combining electromagnetic and acoustic actuation with real‐time visual feedback into a single, end‐to‐end device. The system enables closed‐loop control and tracking algorithm experimentation within an accessible and unified hardware ...
Max Sokolich +4 more
wiley +1 more source
Chinese Journal of Contemporary Neurology and Neurosurgery, 2011 Objective To analyse the typical and atypical magnetic resonance imaging (MRI) findings of brain multiple sclerosis (MS) lesions in Chinese MS patients.
Shuguang CHU +5 more
doaj