Search results for "Form analysis"

showing 3 items of 3 documents

Comparison between doppler-echocardiography and uncalibrated pulse contour method for cardiac output measurement. a multicenter observational study

2016

Objectives: Echocardiography and pulse contour methods allow, respectively, noninvasive and less invasive cardiac output estimation. The aim of the present study was to compare Doppler echocardiography with the pulse contour method MostCare for cardiac output estimation in a large and nonselected critically ill population. Design: A prospective multicenter observational comparison study. Setting: The study was conducted in 15 European medicosurgical ICUs. Patients: We assessed cardiac output in 400 patients in whom an echocardiographic evaluation was performed as a routine need or for cardiocirculatory assessment. Interventions: None. Measurements and Main Results: One echocardiographic car…

Cardiac outputgenetic structuresintensive care unitsBlood PressureDoppler echocardiographyCritical Care and Intensive Care Medicinearterial waveform analysis; cardiac output; Doppler echocardiography; echocardiography; hemodynamic monitoring; pulse contour method; Critical Care and Intensive Care Medicinehemodynamic monitoring0302 clinical medicine030202 anesthesiologyechocardiographyhumansarterial waveform analysisarterial waveform analysis; cardiac output; doppler echocardiography; echocardiography; hemodynamic monitoring; pulse contour method; heart; humans; intensive care units; linear models; monitoring; physiologic; prospective studies; blood pressure; cardiac output; echocardiography; doppler; pulse; critical care and intensive care medicinemedicine.diagnostic_testPulse (signal processing)physiologicblood pressureHeartEchocardiography Dopplercardiovascular systemCardiologysymbolsLinear ModelDoppler effectHumandoppler echocardiographymedicine.medical_specialtyIntensive Care UnitLess invasiveheartpulse contour methoddoppler03 medical and health sciencesCardiac output measurementsymbols.namesakeInternal medicinemedicinePulsearterial waveform analysiMonitoring Physiologicbusiness.industrycardiac output030208 emergency & critical care medicineDoppler echocardiographyprospective studiesProspective StudiemonitoringMulticenter studycritical care and intensive care medicineObservational studylinear modelsbusinesspulse
researchProduct

Enantiomerization of an inherently chiral resorcarene derivative: determination of the interconversion barrier by computer simulation of the dynamic …

2001

Abstract The inherently chiral tetrabenzoxazine resorcarene derivative 1 shows characteristic plateau-formation during enantioselective HPLC separation on the chiral stationary phase Chiralpak AD. By computer assisted peak form analysis of the elution profiles, obtained from temperature dependent dynamic HPLC (DHPLC) experiments, with ChromWin, the enantiomerization barrier Δ G # (298 K)=92±2 kJ mol −1 and the activation parameters Δ H # =53.0±1.8 kJ mol −1 and Δ S # =−131±14 J (K mol) −1 were determined.

ElutionOrganic ChemistryAnalytical chemistryForm analysisChiralpak ADResorcinareneChiral stationary phaseHigh-performance liquid chromatographyCatalysisInorganic Chemistrychemistry.chemical_compoundchemistryPhysical and Theoretical ChemistryEnantioselective hplcDerivative (chemistry)Tetrahedron: Asymmetry
researchProduct

Using very high resolution (VHR) imagery within a GEOBIA framework for gully mapping: an application to the Calhoun Critical Zone Observatory

2019

AbstractGully erosion is a form of accelerated erosion that may affect soil productivity, restrict land use, and lead to an increase of risk to infrastructure. An accurate mapping of these landforms can be difficult because of the presence of dense canopy and/or the wide spatial extent of some gullies. Even where possible, mapping of gullies through conventional field surveying can be an intensive and expensive activity. The recent widespread availability of very high resolution (VHR) imagery has led to a remarkable growth in the availability of terrain information, thus providing a basis for the development of new methodologies for analyzing Earth's surfaces. This work aims to develop a ge…

Very high resolutionAtmospheric Science010504 meteorology & atmospheric sciencesSettore ICAR/02 - Costruzioni Idrauliche E Marittime E Idrologia0211 other engineering and technologiesCritical zoneeCognition GEOBIA gully erosion landform analysis soil erosion02 engineering and technologyGeotechnical Engineering and Engineering Geology01 natural sciencesObservatorySettore ICAR/06 - Topografia E CartografiaGeology021101 geological & geomatics engineering0105 earth and related environmental sciencesCivil and Structural EngineeringWater Science and TechnologyRemote sensingJournal of Hydroinformatics
researchProduct