Results 71 to 80 of about 133,233 (286)
Octave bandwidth photonic fishnet-achromatic-metalens
Nature Communications, 2020 Here the authors demonstrate all-dielectric fishnet-achromatic-metalenses from the visible to the near-infrared region. This metalens performs efficiently independent of polarization over about an octave from 640 nm to 1200 nm.
Abdoulaye Ndao +5 more
doaj +1 more source
Audiological Characteristics in Vestibular Schwannoma Patients
World Journal of Otorhinolaryngology - Head and Neck Surgery, EarlyView.ABSTRACT Objective Vestibular schwannoma (VS) is a benign tumor that originates from the Schwann cells of the vestibular nerve sheath in the internal auditory canal. This retrospective study collected data from patients with VS who underwent surgical treatment to identify their demographic characteristics and audiometric features.
Shan Zeng +4 more
wiley +1 more source
A computer-controlled instrumentation system for third octave analysis [PDF]
An instrumentation system is described which employs a minicomputer, a one-third octave band analyzer, and a time code/tape search unit for the automatic control and analysis of third-octave data.
Faulcon, N. D., Monteith, J. H.
core +1 more source
High Voltage, EarlyView.ABSTRACT Converter transformer vibration failures, primarily because of winding and core vibrations, severely impact the safe operation of high voltage direct current (HVDC) systems. These vibrations are influenced by voltage and current, and are transmitted through transformer oil and structural components to the tank. Current numerical models fail to
Peiyu Jiang, Fanghui Yin, Liming Wang
wiley +1 more source
The wave equation for stiff strings and piano tuning [PDF]
, 2017 We study the wave equation for a string with stiffness. We solve the equation and provide a uniqueness theorem with suitable boundary conditions. For a pinned string we compute the spectrum, which is slightly inharmonic.
Gràcia Sabaté, Francesc Xavier +1 more
core +1 more source
Integrative Zoology, EarlyView.Integrating comparative spectrometry, image analysis, and thermal modeling, we reveal that (1) females optimize crypsis via background matching, (2) males prioritize high‐contrast disruptive patterning at a significant thermoregulatory cost (reduced solar heat gain), and (3) habitat‐specific monomorphism in Diploderma slowinskii underscores ecological ...
Yuning Cao, Lin Shi, Yin Qi
wiley +1 more source
Exposure to noise, infrasound and ultrasound of jet airplane
Vojnotehnički Glasnik, 2000 The personnel working on the maintenance of jet airplane is exposed to noise, ultrasound and infrasound. The aim of the work was to measure the entire noise level, accomplish its actave analysis and measure ultrasound and infrasound levels around the jet
Dejan Živković +3 more
doaj +1 more source
Octave-spanning microcombs generation with controllable intracavity soliton states [PDF]
, 2023 Feng Ye +6 more
openalex +1 more source
Comparison of low-frequency noise levels of the Concorde supersonic transport with other commercial service airplanes [PDF]
Fifty-two airplane noise recordings, made at several locations around Dulles International Airport, were analyzed to compare the low-frequency noise levels of the Concorde supersonic transport with those of other commercial jet airplanes.
Mccurdy, D. A., Powell, C. A.
core +1 more source
A loudspeaker response interpolation model based on one-twelfth octave interval frequency measurements [PDF]
, 2005 A practical loudspeaker frequency response interpolation model is developed using a modification of the Tuneable Approximate Piecewise Linear Regression (TAPLR) model that can provide a complete magnitude and phase response over the full frequency range ...
Zaknich, A.
core +1 more source