Results 81 to 90 of about 856,870 (289)
Dynamics of piezoceramics-based mass and force actuators for rotating machines [PDF]
, 2007 In the past decade, it has become more and more common to install active vibration control devices on rotating systems like grinding machines, tooling centers, industrial fans and drive shafts.
Boer, André de +2 more
core +1 more source
High‐Speed Flexible Schottky Diodes Based on Carbon Nanotubes
Advanced Electronic Materials, EarlyView.We demonstrate a flexible Schottky diode based on carbon nanotube network thin film, and the devices are fabricated via a low‐temperature process on a PI substrate, which exhibits excellent radio‐frequency characteristics, with a high responsivity 6 A/W at zero bias, a high intrinsic cut‐off frequency reaching 153 GHz, and an extrinsic cut‐off ...
Yan Li +6 more
wiley +1 more source
Zhongguo Jianchuan YanjiuObjectivesTo enhance the effectiveness of button-type metal diverter strips in ship-radome lightning protection, their ionization characteristics should be investigated under conditions simulating the vicinity of approaching lightning leaders. Methods We
Xi RAO +9 more
doaj +1 more source
How do clarinet players adjust the resonances of their vocal tracts for different playing effects
, 2005 In a simple model, the reed of the clarinet is mechanically loaded by the series combination of the acoustical impedances of the instrument itself and of the player's vocal tract. Here we measure the complex impedance spectrum of players' tracts using an
Fritz, Claudia, Wolfe, Joe
core +3 more sources
Beyond Silicon: Toward Sustainable, NIR‐II, and Conformable Organic Photodiodes
Advanced Energy Materials, EarlyView.In this perspective, a strategic shift in organic photodetector (OPD) research is proposed: instead of the incremental advances in silicon's stronghold arena, the most impactful future for OPDs lies in addressing silicon's intrinsic limitations, i.e., detection in the longer wavelength range above silicon's coverage (>1100 nm, termed as near infrared ...
Hrisheekesh Thachoth Chandran +7 more
wiley +1 more source
Transcatheter closure of Ventricular Septal defects in Malta : initial experience [PDF]
, 2005 Ventricular septal defects (VSD) consist of deficiencies of the wall separating the two ventricles. VSDs are the commonest congenital cardiac defects. Small VSDs rarely require intervention, however, larger defects cause ventricular volume overload with ...
Aquilina, Oscar +6 more
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Annals of Gastroenterological Surgery, EarlyView.We retrospectively analyzed clinical data from patients who underwent hepatectomy for hepatocellular carcinoma (HCC) using LCA‐based grading system. These findings provide a new risk stratification framework for the design of precision surgery to treat patients with HCC.
Ling Liu +5 more
wiley +1 more source
, 2017 This paper presents novel methods to approximate the nonlinear AC optimal power flow (OPF) into tractable linear/quadratic programming (LP/QP) based OPF problems that can be used for power system planning and operation.
Demiray, Turhan, Fortenbacher, Philipp
core +1 more source
Co-Designed Agile Feed Network for a Polarization Tunable 15 GHz Antenna All-Integrated on Silicon
IEEE AccessThis article presents an all-integrated agile feeding network at 15 GHz enabling the polarization agility of a dual-fed patch antenna, allowing the switching between LHCP (Left Hand Circular Polarized), H-LP (Horizontal Linear Polarized) and V-LP ...
Corentin Le Lez +10 more
doaj +1 more source
PLoS ONE, 2019 Clinical grading systems following glaucoma filtration surgery do not include any effects of the bleb on the intra-ocular pressure and are relatively subjective, therefore carrying the risk of inter and/or intra-observer variability.
Yann Bouremel +4 more
doaj +1 more source