نتایج جستجو برای: atmospheric and geometric doppler

تعداد نتایج: 16861638  

2013
Roland Romeiser Hartmut Runge Steffen Suchandt Ralph Kahle Cristian Rossi Paul Bell

ALONG-TRACK INTERFEROMETRY AND DOPPLER CENTROID ANALYSIS Roland Romeiser, Hartmut Runge, Steffen Suchandt, Ralph Kahle, Cristian Rossi, and Paul Bell 1 Rosenstiel School of Marine and Atmospheric Science, University of Miami 4600 Rickenbacker Causeway, Miami, FL 33149-1031, USA Phone: +1 305 421 4645, Fax: +1 305 421 4701 E-Mail: [email protected] 2 Remote Sensing Technology Institute /...

1999
D. M. Golden L. T. Iraci P. A. Makar

INTRODUCTION........................................................................................................................... 1 OVERVIEW OF ATMOSPHERIC VOC OXIDATION ............................................................... 2 CURRENT STATE OF KNOWLEDGE ........................................................................................ 4 Inorganic Reactions.....................

2014
R. Rüfenacht A. Murk N. Kämpfer P. Eriksson S. A. Buehler

Middle-atmospheric zonal and meridional wind profiles from polar, tropical and mid latitudes with the ground-based microwave Doppler wind radiometer WIRA R. Rüfenacht, A. Murk, N. Kämpfer, P. Eriksson, and S. A. Buehler Institute of Applied Physics, University of Bern, Bern, Switzerland Department of Earth and Space Sciences, Chalmers University of Technology, Gothenburg, Sweden Division of Spa...

Journal: :IEEE Trans. Geoscience and Remote Sensing 2002
Dmitri Moisseev Christine M. H. Unal Herman Russchenberg Leo P. Ligthart

This paper introduces a new ground clutter suppression technique which preserves weather echoes. This clutter suppression method uses both statistical and polarimetric properties of the target and clutter. This technique is intended for use in atmospheric studies for weather echoes the spectral properties of which do not differ much from those of ground clutter. This technique can be applied bo...

      Background: Computed tomography scans (CT scan) and X-rays are used to diagnose paediatric maxillary sinusitis. This study aimed at exploring the diagnostic value of the conventional and colour Doppler ultrasounds and their specific findings in cases of paediatric sinusitis.    Methods: A total of 60 children diagnosed with sinusitis were included in this s...

2003
Christopher Leigh Andrew Collier Cameron Keith Horne Alan Penny

Using improved doppler tomographic signal-analysis techniques we have carried out a deep search for starlight reflected from the giant planet orbiting the star τ Bootis. We combined echelle spectra secured at the 4.2 m William Herschel telescope in 1998 and 1999 (which yielded a tentative detection of a reflected starlight component from the orbiting companion) with new data obtained in 2000 (w...

2010
K. J. Pringle

We present a new aerosol microphysics and gas aerosol partitioning submodel (Global Modal-aerosol eXtension, GMXe) implemented within the ECHAM/MESSy Atmospheric Chemistry model (EMAC, version 1.8). The submodel is computationally efficient and is suitable for medium to long term simulations with global and regional models. The aerosol size distribution is treated using 7 log-normal modes and h...

Journal: :middle east journal of cancer 0
rahul gandhi department of oral medicine and radiology, saraswati-dhanwantari dental college and hospital and post-graduate research institute, parbhani, maharashtra, india abhishek singh nayyar department of oral medicine and radiology, saraswati-dhanwantari dental college and hospital and post-graduate research institute, parbhani, maharashtra, india rahul bhowate department of oral medicine and radiology, sharad pawar dental college and hospital, wardha, maharashtra, india sweta gandhi department of public health dentistry, lata mangeshkar dental college and hospital, nagpur, maharashtra, india girish dongerwar department of oral medicine and radiology, saraswati-dhanwantari dental college and hospital and post-graduate research institute, parbhani, maharashtra, india

background: although color doppler ultrasonography (cdus) is useful in the diagnosis of various diseases of the head and neck, flow signals in oral malignant masses are less studied; hence the present study assesses the usefulness of color doppler ultrasonography in quantifying oral squamous cell carcinoma (oscc) vascularization. in addition, we determine the hemodynamic parameters by spectral ...

Journal: :iranian red crescent medical journal 0
shirin niromanesh maternal, fetal and neonatal research center, tehran university of medical sciences, tehran, iran mahboobeh shirazi maternal, fetal and neonatal research center, tehran university of medical sciences, tehran, iran; breast feeding research center, tehran university of medical sciences, tehran, iran mitra eftekhariyazdi maternal, fetal and neonatal research center, tehran university of medical sciences, tehran, iran; department of obstetrics & gynecology, faculty of medicine, sabzevar university of medical sciences, sabzevar, iran; department of obstetrics & gynecology, faculty of medicine, sabzevar university of medical sciences, sabzevar, iran mamak shariat maternal, fetal and neonatal research center, tehran university of medical sciences, tehran, iran; breast feeding research center, tehran university of medical sciences, tehran, iran maryam rabiei maternal, fetal and neonatal research center, tehran university of medical sciences, tehran, iran forough mortazavi department of midwifery, sabzevar university of medical sciences, sabzevar, iran

conclusions both ua and mca doppler tests were associated with some neonatal outcomes. however, sensitivity of both ua and mca assessments was low in the prediction of adverse neonatal outcomes. by the comparison of these two methods, we found that ua doppler assessment is a better predictor of neonatal outcomes. results based on the findings, poor outcomes were detected in 48 women. nearly 17....

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