Photoelectric-helicoidal spirometer

Evaluation of a new electronic spirometer: the vitalograph "Escort" spirometer.

BACKGROUND The "Escort" spirometer is a lightweight, hand held spirometer employing a Fleisch pneumotachograph. Measurements of forced expiratory volume in one second (FEV1), forced vital capacity (FVC), and peak expiratory flow (PEF) are obtained from a single FVC manoeuvre. Results are displayed on a small liquid crystal display, but there is no graphical display. The performance of the Escor...

MR compatible spirometer

Introduction: MR compatible spirometer is needed for (i) monitoring of anaesthetized patients and (ii) sequence synchronization and/or image reconstruction. Patient motion is likely to induce motion artifacts (ghosting) in image thus reducing its quality during MRI acquisitions. When breath-hold acquisitions are not possible, as for uncooperative children, an alternative technique is proposed, ...

Helicoidal model for DNA opening

Maria Barbi, Simona Cocco and Michel Peyrard 1 Istituto Nazionale di Fisica Nucleare, Dipartimento di Fisica, Universitá degli Studi di Firenze, Largo E. Fermi, 2 50125 Firenze, Italy 2 Dipartimento di Scienze Biochimiche Universitá di Roma ”La Sapienza” P.le A. Moro, 5 00185 Roma, Italy 3 Laboratoire de Physique, CNRS URA 1325, Ecole Normale Supérieure de Lyon, 46 Allée d’Italie, 69364 Lyon Ce...

Characteristics of the Vitalograph spirometer.

Spirometer Calibration Check Procedures

drastically displaced. From our side, this has lead to an intelligent analytical procedure that we call “InCAP,” which groups waveforms into clusters.3 The cluster that most closely agrees with the normal capnogram is used for calculating PETCO2. This analysis system provides considerably better agreement between the data from cluster 1 and the PaCO2 value. The problematic nature of the convent...