Results 21 to 30 of about 69,595 (260)

3D-PTV Measuring onBubble and Liquid Velocities of a Single Bubble Jet

Journal of Fluid Science and Technology, 2013
This experimental research concerns a simple air-bubblejet from a bottom nozzle in water. We try to conduct the measurements of the flow by applying a three-dimensional particle tracking velocimetry (3D-PTV) technique, in order to specify both bubble ...
Katsuya HIRATA, Ryo KAWAGUCHI, Miki TAOKA, Jiro FUNAKI   +3 more
doaj   +1 more source

Development of an infrared PTV

Journal of the Visualization Society of Japan, 2002
The Infrared PTV (Particle Tracking Velocimetry) is proposed for applications to measurements of surface velocity fields of local water bodies, such as rivers, lakes, ponds, estuaries and coastal areas. The tracers are either ice particles or soaked and frozen flat edible cakes. The cameras are infrared sensitive.
T. Goji ETOH, Kohsei TAKEHARA, Satoshi OKUNO, Yasuhide TAKANO   +3 more
openaire   +2 more sources

3D-PTV measurement verified by UVP for unsteady and three-dimensional flow inside a suction sump

Journal of Fluid Science and Technology, 2016
Our aim is to understand the complicated flow inside a suction sump in the vertical-wet-pit-pump configuration. The information of unsteady and three-dimensional flow structures is useful, not only for this complicated flow but also for other complicated
Katsuya HIRATA, Atsushi SHINTANI, Ryo KAWAGUCHI, Katsuhisa INAGAKI, Takafumi NAGURA, Tsuyoshi MAEDA   +5 more
doaj   +1 more source

Basic Space Structure of Bubble-Jet Plume Using Consecutive 3D-PTV

Journal of Fluid Science and Technology, 2009
This experimental research concerns the air-bubble-jet flow in water. We try to apply three-dimensional particle tracking velocimetry to the flow. Air bubbles are regarded as tracer particles.
Jiro FUNAKI, Atsushi SHINTANI, Ryo KAWAGUCHI, Katsuya HIRATA   +3 more
doaj   +1 more source

MR imaging-guided vacuum assisted breast biopsy: Radiological-pathological correlation and underestimation rate in pre-surgical assessment

European Journal of Radiology Open, 2020
Background: Magnetic Resonance(MR) guided percutaneous procedures(MRgVABB) have been developed and largely employed to reduce the need of surgical biopsies for suspicious lesions which can be detected only by MR(MR-only lesion). The present study aims to
Rosaria Meucci, Adriana Pistolese Chiara, Tommaso Perretta, Gianluca Vanni, Ilaria Portarena, Guglielmo Manenti, Patricia Ryan Colleen, Antonella Castrignanò, Carla Di Stefano, Donatella Ferrari, Feliciana Lamacchia, Marco Pellicciaro, Marco Materazzo, Claudio Buonomo Oreste   +13 more
doaj   +1 more source

Role of Breast-Conserving Surgery on the National Health System Economy From and to SARS-COVID-19 Era

Frontiers in Surgery, 2022
Day surgery breast-conserving surgery (DS-BCS) is a surgical approach applied in many specialized breast surgery departments. This study demonstrates the benefits of this approach from the perspectives of patients and of the Hospital/National Health ...
Oreste Claudio Buonomo, Danilo Vinci, Gerardo De Carolis, Marco Pellicciaro, Francesco Petracca, Amir Sadri, Chiara Buonomo, Mario Dauri, Gianluca Vanni   +8 more
doaj   +1 more source

The Dosimetric Performance of Volumetric Modulated Arc Therapy and Intensity Modulated Radiation Therapy in the Treatment of Locally Advanced Laryngeal Cancer [PDF]

Middle East Journal of Cancer
Background: This study aims to compare the performance of intensity modulated radiation therapy (IMRT) and volumetric modulated arc therapy (VMAT) in treating laryngeal cancer.Method: In this retrospective dosimetric study, 15 patients diagnosed with ...
Firas Khater, Ehab Attalla, Wael Elshemey, Haitham Mohammed   +3 more
doaj   +1 more source

Oil Phase Velocity Measurement of Oil-Water Two-Phase Flow with Low Velocity and High Water Cut Using the Improved ORB and RANSAC Algorithm

Measurement Science Review, 2020
Velocity is an important parameter for fluid flow characteristics in profile logging. Particle tracking velocimetry (PTV) technology is often used to study the flow characteristics of oil wells with low flow velocity and high water cut, and the key to ...
Han Lianfu, Wang Haixia, Cong Yao, Liu Xingbin, Han Jian, Fu Changfeng   +5 more
doaj   +1 more source

Randomized crossover comparison of proportional assist ventilation and patient-triggered ventilation in extremely low birth weight infants with evolving chronic lung disease [PDF]

, 2007
Background: Refinement of ventilatory techniques remains a challenge given the persistence of chronic lung disease of preterm infants. Objective: To test the hypothesis that proportional assist ventilation ( PAV) will allow to lower the ventilator ...
Andreas Schulze, Eduardo Bancalari, Esther Rieger-Fackeldey, Lebowitz HH, Musante G, Nelson Claure, Poon CS, Poon CS, Ruth Everett, Schaller P, Schulze A, Schulze A, Schulze A, Schulze A, Schulze A, Schulze A, Tilo Gerhardt, Younes M   +17 more
core   +1 more source

Giving voters what they want? Party orientation perceptions and preferences in the British electorate [PDF]

, 2014
Some of the most important propositions in the political marketing literature hinge on assumptions about the electorate. In particular, voters are presumed to react in different ways to different orientations or postures.
Bartle J, Campbell A, Dalton RJ, Downs A, Dunleavy P, Ferejohn J, Friedman M, Green DP, Lees-Marshment J, Lees-Marshment J, Lilleker DG, Lloyd J, Newman BI, Ormrod RP, Schmitt H, Scott A, van der Eijk C   +16 more
core   +1 more source