Results 11 to 20 of about 2,702,849 (300)
STATISTIC OF SEASONAL AND DIURNAL VARIATIONS OF DOPPLER FREQUENCY SHIFT OF HF SIGNALS AT MID-LATITUDE RADIO PATH [PDF]
Radio Physics and Radio Astronomy, 2020 Purpose: An experimental study of signatures of traveling ionospheric disturbances (TID) observed in diurnal-seasonal variations of the parameters of probe HF signals propagating on theoblique single-hop RWM–LFO radio path, derived from the yearlong ...
A. I. Reznychenko +3 more
doaj +1 more source
Normative values of visual evoked potential in adults
Indian Journal of Ophthalmology, 2021 Purpose: Visual evoked potentials (VEP) are used to determine the function of visual pathway from the optic nerve to visual cortex. Various factors may affect VEP response, viz., technical and environmental.
Merry Septemi Ekayanti +2 more
doaj +1 more source
A universal broadband and CEP stable seeder for high-power amplifiers [PDF]
EPJ Web of ConferencesThis work presents a universal seeder architecture based on filamentation and parametric amplification from an Ytterbium pump laser for the generation of pulses with versatile properties in terms of central wavelength, bandwidth, CEP, and contrast for ...
Maksimenka Raman +7 more
doaj +1 more source
Experimental demonstration of a temporal pulse shaping method based on nonlinear chirp [PDF]
EPJ Web of ConferencesWe present a general temporal shaping method based on spectral phase-only modulation for ultrafast laser sources. We explain the working principle of this technique and use it experimentally to generate a ramp-shaped pulse at the output of a laser source
Parize Gautier +5 more
doaj +1 more source
Amplitude dependence of image quality in atomically-resolved bimodal atomic microscopy [PDF]
, 2016 In bimodal FM-AFM, two flexural modes are excited simultaneously. The total vertical oscillation deflection range of the tip is the sum of the peak-to-peak amplitudes of both flexural modes (sum amplitude).
Arai, Toyoko +5 more
core +2 more sources
Annales Henri Poincaré, 2017 In this work, we argue that the α′→0 limit of closed string theory scattering amplitudes is a tropical limit. The motivation is to develop a technology to systematize the extraction of Feynman graphs from string theory amplitudes at higher genus.
openaire +2 more sources
Comparison of Propofol and Ketofol on Transcranial Motor Evoked Potentials in Patients Undergoing Thoracolumbar Spine Surgery [PDF]
Asian Spine Journal, 2022 Study Design This was a double-blind randomized study. Purpose The primary purpose was to compare the effects of propofol and ketofol on amplitudes and latencies of transcranial motor evoked potentials (TcMEPs) during thoracolumbar spine surgery.
Ankur Khandelwal +4 more
doaj +1 more source
Lorentzian LQG vertex amplitude [PDF]
, 2008 We generalize a model recently proposed for Euclidean quantum gravity to the case of Lorentzian signature. The main features of the Euclidean model are preserved in the Lorentzian one.
Pereira, Roberto
core +3 more sources
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2022 Structural calculation scheme of the hydropulse device for vibration cutting with built-in ring with pressure pulse generator (PPG) is considered. On the basis of the structural scheme and cyclogram of the working cycle of the device, its dynamic and ...
Roman Obertyukh +5 more
doaj +1 more source
Scattering amplitude annihilators
, 2020 Several second order differential operators are shown to annihilate the YM and GR tree scattering amplitudes. In particular we prove a conjecture of Loebbert, Mojaza and Plefka from their investigation of a hidden conformal symmetry in GR.Comment: 31 ...
Nützi, Andrea, Reiterer, Michael
core +1 more source