Results 21 to 30 of about 73,095 (305)
Evaluation of Bioelectrical Impedance Analysis for Identifying Overweight Individuals at Increased Cardiometabolic Risk:A Cross-Sectional Study [PDF]
, 2014 OBJECTIVE: To investigate whether bioelectrical impedance analysis could be used to identify overweight individuals at increased cardiometabolic risk, defined as the presence of metabolic syndrome and/or diabetes.DESIGN AND METHODS: Cross-sectional study
Lamb Maxine J. E. +15 more
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The Current Distribution and Characteristic Impedance of Multiwire Hexaedric Antenna
Radioengineering, 1996 Both the current distribution and characteristic impedance variations along a hexaedric antenna are analysed in this paper. The presented arrangement by auxiliary wires may ensure equal currents in all antenna wires.
Z. Novacek
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Research on Over Voltage Suppression Technology of Long Cable Based on Interphase Transformer
机车电传动, 2021 Aiming at the over voltage problem of long cable caused by high-speed switch devices such as silicon carbide, the mechanism of over voltage of long cable and its in fluencing factors were analyzed, and a method of suppressing over voltage of long cable ...
Yongjian ZHI +5 more
doaj
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2016 BackgroundThe hemodynamic basis for increased pulse pressure (PP) with aging remains controversial. The classic paradigm attributes a predominant role to increased pulse wave velocity (PWV) and premature wave reflections (WRs).
Timothy S. Phan +3 more
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Characteristic impedance of stripline
Electronics Letters, 1987 In the letter a simple correction for the influence of the strip thickness on the characteristic impedance of stripline is proposed. This correction is intended for use with Wheeler's formula for characteristic impedance. The thickness correction is independent of strip width and thus has to be calculated only once.
B. Nauwelaers, A. van de Capelle
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Impedance characteristics of magnetoelectric antennas
Acta Physica Sinica, 2022 Mechanical antenna, a novel scheme for realizing very low frequency (VLF) and portable transmitters, has been investigated recently. In this work, the impedance characteristics of 1-1 type of and 2-1 type of magnetoelectric (ME) mechanical antennas are systematically studied and compared with each other. Based on the measured frequency-impedance curves
Kai-Xin Song +6 more
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Relations Between Aortic Stiffness and Left Ventricular Mechanical Function in the Community
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2017 BackgroundAortic stiffness impairs optimal ventricular–vascular coupling and left ventricular systolic function, particularly in the long axis. Left ventricular global longitudinal strain (GLS) has recently emerged as a sensitive measure of early cardiac
Vanessa Bell +13 more
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Sensors, 2023 The precursors that appear when geological disasters occur are geotechnical deformations. This paper studies the TDR (Time Domain Reflection) measurement technology for the distributed measurement of geotechnical deformation using parallel spiral wire as
Xinyu Miao +5 more
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Multilayer Impedance Pump: A Bio-Inspired Valveless Pump with Medical Applications [PDF]
, 2007 This thesis introduces the concept of multilayer impedance pump, a novel pumping mechanism inspired from the embryonic heart structure. The multilayer impedance pump is a composite two-layer fluid-filled elastic tube featuring a thick, gelatin-like ...
Loumes, Laurence
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A study of the effects of external pressure on the electrical performance of a lithium-ion pouch cell [PDF]
, 2013 The introduction of lithium-ion batteries for vehicle powertrain electrification has increased in recent years. They feature high energy density, high power density, long cycle life, and is also environmentally friendly compared with other types of ...
McGordon, Andrew +7 more
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