Measurement Methodology

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Elizabeth Chang - One of the best experts on this subject based on the ideXlab platform.

Farookh Khadeer Hussain - One of the best experts on this subject based on the ideXlab platform.

George S. Stergiou - One of the best experts on this subject based on the ideXlab platform.

  • Blood pressure Measurement Methodology and technology in the SWEET diabetes centers: An international SWEET database survey.
    Pediatric diabetes, 2020
    Co-Authors: Andriani Gerasimidi‐vazeou, Niels H. Birkebæk, Violeta Iotova, Valentino Cherubini, Barbara Piccini, Torben Biester, Gordana Stipancic, Craig Jefferies, Claudio Maffeis, George S. Stergiou
    Abstract:

    Introduction The accuracy of blood pressure (BP) Measurement is a prerequisite for the reliable diagnosis and management of hypertension. Objectives This survey evaluated the use of office and out-of-office BP Measurements and the antihypertensive pharmacological treatment in expert pediatric diabetes centers. Methods A questionnaire was distributed in 78 reference pediatric diabetes centersof the SWEET international consortium. The Methodology, devices, indications and interpretation of office BP Measurements (OBPM), 24-hour ambulatory BP monitoring (ABPM) and home BP monitoring (HBPM) and the preference for antihypertensive drug treatment was assessed. A grading score was developed to evaluate centersfor overall BP Measurement performance. Results Fifty-two centersresponded. The average score for OBPMMethodology was 72.5%, for technology 77.5% and the overall center score was 74.75%.The majority of the centersusedappropriate Methodology and technology, however, there was heterogeneity among them.Manual auscultatory or automated devices specifically validated for children were used by 26/52 centers.ABPM was recommendedby 35/52 centers(27/35 had health insurance coverage) and HBPM by 18/52 centers. The BP Measurement Methodology and devices used for ABPM and HBPM were frequently inadequate.Angiotensin converting enzyme inhibitors werethe most frequently prescribed drugs for treating hypertension. Conclusions The majority of SWEET pediatric diabetes centersuse adequate Methodology and devices for BP Measurement. ABPM is recommended by two thirds of the centers, whereas HBPM is less widely used. Further improvement in the quality of office and out-of-office BP Measurements and harmonization among centersis necessary according to current guidelines. This article is protected by copyright. All rights reserved.

Omar Khadeer Hussain - One of the best experts on this subject based on the ideXlab platform.

Juan J. García - One of the best experts on this subject based on the ideXlab platform.

  • Detector of Electrical Discontinuity of Rails in Double-Track Railway Lines: Electronic System and Measurement Methodology
    IEEE Transactions on Intelligent Transportation Systems, 2017
    Co-Authors: Felipe Espinosa, Álvaro Hernández, Manuel Mazo, Jesús Ureña, María C. Pérez, José A. Jiménez, Ignacio Fernández, Juan C. García, Juan J. García
    Abstract:

    This paper describes the design, Measurement Methodology, and experimental validation of an electronic system for monitoring the electrical discontinuity in rails of double-track railway lines in order to detect the rail breakage. The electronic system is based on an emitter node and on the two receiver nodes. The three nodes, together with the four rails to be analyzed, constitute the electrical circuits, whose currents are measured in both the emission and reception nodes. These nodes can communicate through a data network between them, as well as with a remote center that controls and synchronizes the electronic systems along the railway line. The electronic subsystem associated with the emitter node transmits an encoded signal to the rails, modulated by an 800-Hz carrier. A set of eight currents are measured, one per rail at each end of the section defined between the emitter and the receiver, with a maximum length of 7 km. The evaluation of electrical discontinuities in each section is carried out by means of the relative imbalances that can appear between the eight measured currents, according to possible breakages. The method of Measurement is characterized by a high immunity to noise. The results presented here are based on a railway line prototype, which implements the electrical propagation models and coupling between the four rails in the double track. This model allows the proposed electronic system and Measurement Methodology to be successfully verified.