Results 1 to 10 of about 65,866 (162)
Atoms, 2018 Semi-empirical transition probabilities for magnetic dipole (M1) and electric quadrupole (E2) emission lines have been derived from parametric studies of experimental energy levels in Tm3+ (Tm IV), Yb4+ (Yb V), and Er3+ (Er IV), using Cowan codes ...
Jean-François Wyart +2 more
exaly +3 more sources
Calculations of superconducting parametric amplifiers performances
Journal of Physics: Conference Series, 2017 A superconducting parametric amplifier is an electromagnetic wave amplifier with high-quality characteristics such as a wide bandwidth, an extremely low noise, and a high dynamic range. In this paper, we report on the estimations of a YBCO superconducting parametric amplifier characteristic.
M Takeda, H Shimakage
exaly +2 more sources
Scientific and methodological bases of rational design of hoisting-and-transport machines metal structures [PDF]
E3S Web of Conferences, 2020 Purpose of this paper is to improve parameters of metal structures elements of hoisting-and-transport machines (HTMs) by means of systematic approach to study changes of their stress-strain state during design or usage stage.
Sagirov Yurii +3 more
doaj +1 more source
Arclength Parametrized Hamilton's Equations for the Calculation of Instantons [PDF]
Multiscale Modeling & Simulation, 2014 A method is presented to compute minimizers (instantons) of action functionals using arclength parametrization of Hamilton's equations. This method can be interpreted as a local variant of the geometric minimum action method (gMAM) introduced to compute minimizers of the Freidlin-Wentzell action functional that arises in the context of large deviation ...
Tobias Grafke +3 more
openaire +3 more sources
An optical parametric Bragg amplifier on a CMOS chip
Nanophotonics, 2021 We demonstrate a complementary metal–oxide–semiconductor (CMOS)-compatible optical parametric Bragg amplifier on an ultra-silicon-rich nitride chip. The amplifier design incorporates advantageous group index properties in a nonlinear Bragg grating to ...
Choi Ju Won +7 more
doaj +1 more source
Special aspects of modulation RCS measurement in Ka-band [PDF]
ITM Web of Conferences, 2019 Radar reflectors are used as standards for radioelectronic devices calibration, as navigation beacons for air and naval traffic control and for radar visibility increase. Controlled (parametric) reflectors change reflected signal characteristics.
Kryuchkov Igor V. +2 more
doaj +1 more source
DEVELOPMENT OF A METHOD FOR CALCULATION OF PARAMETRIC TRANSFORMERS
ELECTRICAL AND DATA PROCESSING FACILITIES AND SYSTEMS, 2023 Relevance During the operation of semiconductor converters and electrical installations (for example: ignition units, converters of ozonizers and gasdischarge lamps, energy facilities where corona discharge periodically occurs, etc.), an increased level of electromagnetic interference often occurs.
Andrey V. Styskin +5 more
openaire +1 more source
Mathematical models of structural and parametric synthesis of load trolley metalware of bridge cranes on basis of multipurpose layout drawing [PDF]
Научно-технический вестник Брянского государственного университета, 2019 The mathematical models of the structural and parametric synthesis of the load trolley metalware of bridge cranes on the basis of the multipurpose layout drawing are suggested.
Goncharov K.A., Denisov I.A.
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Parametric calculations of service fatigue life of welded T-joints
Procedia Structural Integrity, 2022 Miloslav Kepka
exaly +3 more sources
International Journal of Naval Architecture and Ocean Engineering, 2021 In this study, hull dimensions of an FPSO were optimized to maximize its operability at Brazil field. In contrast with the previous works which have used simplified models to evaluate some indicators related to stability and hydrodynamic performances of ...
Jonghun Lee +3 more
doaj +1 more source