Results 111 to 120 of about 6,064,789 (390)

Research and design of pulse wave sphygmomanometer based on RNN

open access: yesDianzi Jishu Yingyong, 2018
Aiming at the inconvenience and discontinuity of traditional cuff sphygmomanometer, a portable pulse wave sphygmomanometer is designed. The sphygmomanometer collects the pulse wave signal of the finger end through the photoelectric sensor,preprocesses ...
Liu Yanping, Li Jie, Jin Fei
doaj   +1 more source

Fabrication of a Stable, Low‐Cost, Patient‐Specific, Brain Phantom with Ventricles for Ultrasound Imaging

open access: yesAdvanced Engineering Materials, EarlyView.
Patient‐specific brain phantoms can replace animal trials, aid presurgical training, and enable in silico disease research on cerebrospinal fluid and ventricles. This study presents a method to create ventricular brain phantoms from three‐dimensional magnetic resonance images brain scans, resulting in durable, tunable, reproducible models that mimic ...
Kajal Chandraprakash Jain   +3 more
wiley   +1 more source

Hydrogen flash lamps studied [PDF]

open access: yes, 1969
Parameters of gas pressure, type of gas, tube voltage, and electrode gap are tested on the intensity and shape of a radiation pulse from a hydrogen-filled ...
Benson, M. J.   +2 more
core   +1 more source

Perioperative goal-directed hemodynamic therapy based on radial arterial pulse pressure variation and continuous cardiac index trending reduces postoperative complications after major abdominal surgery: a multi-center, prospective, randomized study

open access: yesCritical Care, 2013
IntroductionSeveral single-center studies and meta-analyses have shown that perioperative goal-directed therapy may significantly improve outcomes in general surgical patients.
C. Salzwedel   +10 more
semanticscholar   +1 more source

Quality Enhancement of Laser Powder‐Bed Fusion Parts by Acoustically Assisted Additive Manufacturing by Laser Powder‐Bed Fusion and its Application to Lattice Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing technologies like laser powder‐bed fusion offer great design freedom and individualization of products down to a batch size of one. However, parts fabricated with this technology suffer from poor quality. Acoustic assistance during the build process can minimize these drawbacks.
Oliver Maurer, Dirk Bähre
wiley   +1 more source

The acute effect of maximal exercise on central and peripheral arterial stiffness indices and hemodynamics in children and adults [PDF]

open access: yes, 2016
Xavier Melo is supported by a research grant from the Foundation for Science and Technology (FCT), Ministry of Education and Science of Portugal (grant: SFRH/ BD/ 70515/ 2010). Nuno M.
Fernhall, Bo   +6 more
core   +1 more source

Pulse wave response characteristics for thickness and hardness of the cover layer in pulse sensors to measure radial artery pulse

open access: yesBioMedical Engineering OnLine, 2018
Background Piezo-resistive pressure sensors are widely used for measuring pulse waves of the radial artery. Pulse sensors are generally fabricated with a cover layer because pressure sensors without a cover layer are fragile when they come into direct ...
Min-Ho Jun   +3 more
doaj   +1 more source

CeO2 Nanostructures Prepared by Selective Water‐Soluble Sr3Al2O6(SAO)‐CeO2 Vertically Aligned Nanocomposite

open access: yesAdvanced Engineering Materials, EarlyView.
Highly textured CeO2 nanowires and nanoporous thin films are successfully synthesized by water dissolution of Sr3Al2O6 (SAO) from the SAO:CeO2 vertically aligned nanocomposites (VANs). The morphology of CeO2 can be varied by VAN composition. It demonstrates a new method for synthesizing nanostructured CeO2 without chemical etching or complex micro ...
Benson Kunhung Tsai   +8 more
wiley   +1 more source

Numerical study of acoustic oscillations and combustion instabilities in solid propellant rocket [PDF]

open access: yes, 1997
A numerical analysis of unsteady motions in solid rocket motors has been conducted. A fully coupled implicit scheme based on a dual time-stepping integration algorithm has been adopted to solve the governing equations and associated boundary conditions.
Culick, F. E. C., Roh, T. S.
core  

Effect of a reduction in glomerular filtration rate after nephrectomy on arterial stiffness and central hemodynamics: rationale and design of the EARNEST study [PDF]

open access: yes, 2014
Background: There is strong evidence of an association between chronic kidney disease (CKD) and cardiovascular disease. To date, however, proof that a reduction in glomerular filtration rate (GFR) is a causative factor in cardiovascular disease is ...
Alam   +73 more
core   +2 more sources

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