Results 161 to 170 of about 452,435 (309)

Multi-degree-of-freedom hydrodynamic performance study of finned floats

open access: yesZhongguo Jianchuan Yanjiu
ObjectiveTo optimize the energy capture efficiency of a rocker-type wave energy converter, the effects of the platform pillar wave diversion scheme and shape of finned floats on energy capture are studied.MethodsFirst, a hydrodynamic model of float ...
Wei ZHANG   +5 more
doaj   +1 more source

Titanium Suboxides Responsible for Electronic Anomaly Near Room Temperature in the Ti3C2Tx MXene

open access: yesAdvanced Functional Materials, EarlyView.
Our multi‐technique study reveals that the near‐room‐temperature anomaly in Ti3C2Tx MXene is linked to titanium suboxide nanodomains, including Ti3O5, embedded within the MXene host. Their temperature‐driven transformation provides an alternative explanation to solvent‐ and swelling‐based models and offers new insight into the thermally activated ...
Bence G. Márkus   +8 more
wiley   +1 more source

OPTIMIZATION OF HEMISPHERICAL RESONATOR GYROSCOPE STANDING WAVE PARAMETERS

open access: yesНаучный вестник МГТУ ГА, 2017
Traditionally, the problem of autonomous navigation is solved by dead reckoning navigation flight parameters (NFP) of the aircraft (AC). With increasing requirements to accuracy of definition NFP improved the sensors of the primary navigation information:
O. S. Khalyutina
doaj  

P Wave Parameters and Indices: A Critical Appraisal of Clinical Utility, Challenges, and Future Research-A Consensus Document Endorsed by the International Society of Electrocardiology and the International Society for Holter and Noninvasive Electrocardiology. [PDF]

open access: yesCirc Arrhythm Electrophysiol, 2022
Chen LY   +11 more
europepmc   +1 more source

Shock wave instability and the carbuncle phenomenon: same intrinsic origin ? [PDF]

open access: yes, 2000
The theoretical linear stability of a shock wave moving in an unlimited homogeneous environment has been widely studied during the last fifty years. Important results have been obtained by Dyakov (1954), Landau & Lifchitz (1959) and then by Swan & Fowles
Robinet, Jean-Christophe   +3 more
core  

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg   +6 more
wiley   +1 more source

Research on Generation Principle and Parameter Influencing Law of Continuous Wave Pulser

open access: yesShiyou jixie, 2020
Continuous wave pulser is a core component of the measurement-while-drilling (MWD) tool. In order to discuss the principle of pressure wave generation of the continuous wave pulser and the influencing laws of its parameters, a numerical simulation model ...
Xue Liang   +5 more
doaj  

Validation of Normal P-Wave Parameters in a Large Unselected Pediatric Population of North-Western Romania: Results of the CARDIOPED Project. [PDF]

open access: yesDis Markers, 2021
Cismaru G   +8 more
europepmc   +1 more source

Ultrasensitive Anti‐Stokes Luminescence Thermometry in Transition Metal Dichalcogenide Monolayers

open access: yesAdvanced Functional Materials, EarlyView.
We demonstrate a highly sensitive nanothermometer using anti‐Stokes photoluminescence, also known as photoluminescence upconversion (UPL), in monolayer tungsten disulfide. A strong resonantly enhanced UPL is observed, confirming the central role of optical phonons in the PL upconversion mechanism.
Sharada Nagarkar   +6 more
wiley   +1 more source

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