Results 21 to 30 of about 240,426 (307)
Aortic input impedance in cardiovascular disease
Progress in Cardiovascular Diseases, 1982 0 VER the past 2 decades considerable interest has centered around attempts to define and quantify hemodynamic consequences of cardiovascular disorders. In general, these attempts employed traditional hemodynamic measurements, like aortic and ventricular pressures, cardiac output, peripheral resistance, ventricular volumes, ejection fraction, etc., to ...
Division of Cardiovascular Medicine, University of Florida, Shands Teaching Hospital and the Veterans Administration Medical Center, Gainesville, Fla., USA ( host institution ) +2 more
openaire +3 more sources
Impedance Decoupling in DC Distributed Systems to Maintain Stability and Dynamic Performance
Energies, 2017 DC distributed systems are highly reliable and efficient means of delivering DC power or adopting renewable energy resources. However, DC distributed systems are prone to instability and dynamic performance degradation due to the negative incremental ...
Ahmed Aldhaheri, Amir Etemadi
doaj +1 more source
General Analysis of a Loop Antenna Located on a Uniaxial Metamaterial Cylinder
IEEE Access, 2022 The general problem of determining the electrodynamic characteristics of a circular loop antenna located coaxially on the surface of a metamaterial cylinder is studied using the integral equation method. The antenna has the form of a perfectly conducting,
Anna S. Zaitseva +2 more
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IEEE Access, 2019 In this paper, the current distribution and an input impedance of a horizontal linear antenna in the presence of a layered region are investigated both analytically and numerically. In particular, we demonstrate the case of a four-layered region.
Hui Ran Zeng, Tong He, Le Li, Kai Li
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THE STATE OF DIPOLE, DIELECTRIC AND PLASMA ANTENNAS DEVELOPMENT IN THE CONTEXT OF HISTORICAL EVOLUTION OF ANTENNA SYSTEMS [PDF]
Радиофизика и электроника, 2016 The present paper analyses the period of birth and development of science and technology of dipole antennas with reactive and complex loads, microwave dielectric and plasma antennas, as well as dipole and helical electrically small antennas, multi ...
V. V. Ovsyanikov
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CES Transactions on Electrical Machines and Systems, 2023 Magnetically coupled resonant technology is a novel method for solving the breakpoint locating of power grounding grid. But the method can only detect breakpoints of a single mesh grounding grid at present.
Weihua Chen +3 more
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Additional High Input Low Output Impedance Analog Networks
Active and Passive Electronic Components, 2013 This paper presents some additional high input low output impedance analog networks realized using a recently introduced single Dual-X Current Conveyor with buffered output. The new circuits encompass several all-pass sections of first- and second-order.
Sudhanshu Maheshwari +1 more
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IEEE Access, 2019 A compact rectifier with high efficiency at wide input power dynamic range is proposed in this paper. The circuit consists of a matching network, two shunt connected diodes with an integrated impedance compression network (IICN) and a dc-pass filter. The
Yu Yang Xiao +5 more
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Mixed-mode impedance and reflection coefficient of two-port devices [PDF]
, 2012 From the point of view of mixed-mode scattering parameters, Smm, a two-port device can be excited using different driving conditions. Each condition leads to a particular set of input reflection and input impedance coefficient definitions that should be ...
Carrasco, T. +5 more
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Design of hysteresis circuits using differential amplifiers [PDF]
, 1971 Design equations for hysteresis circuit are based on the following assumptions: amplifier input impedance is larger than source impedance; amplifier output impedance is less than load impedance; and amplifier switches state when differential input ...
Cooke, W. A.
core +1 more source