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Christian Lehr, Pascal Munsch, Romuald Skoda and Andreas Brümmer
The acoustic properties of a single-stage centrifugal pump with low specific speed are investigated by means of compressible 3D CFD simulations (URANS) and experiments. In order to determine the pump?s acoustic transmission and excitation characteristics...
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Zhi Rao, Lingfeng Tang and Hui Zhang
Aiming at the problem of high vibration and high wear of centrifugal pump tongue, this paper proposes a double-tongue volute structure. Under the condition of ensuring the reliability of CFD results, the influence of various combinations of tongue and vo...
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Qiaorui Si, Fanjie Deng, Yu Lu, Minquan Liao and Shouqi Yuan
A numerical method using combined detached-eddy simulation (DES) and a cavitation model considering the rotation effect is used for unsteady cavitation flow field of the centrifugal pump. A closed-type pump test system was established to obtain the pump ...
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Zsofia Jokkel, Marcell Szily, Marton Piroska, Helga Szabó, Anita Hernyes, Gergely Szabó, Ildikó Kalina, Pál Maurovich-Horvat, David Laszlo Tarnoki and Adam Domonkos Tarnoki
Background: Recurrent upper airway obstruction during sleep is a common feature of obstructive sleep apnea (OSA). Risk factors for the development of OSA include obesity, male gender and smoking. In addition, anatomical factors contribute to the developm...
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Frank Mattern, Andreas Scharf, Abdul Razak Al-Sayigh, Nada Al-Wahaibi, Laura Galluccio, Gianluca Frijia and Mazin Al-Salmani
The study improves the understanding of the basal part of the Eocene Seeb Formation of Oman, informally known as ?Unit 1?, in terms of microfacies, lithostratigraphy and shale migration within the context of regional tectonics. We logged four sections be...
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Patrizia Defabianis, Alessandro Mussa, Rossella Ninivaggi, Diana Carli and Federica Romano
Beckwith?Wiedemann syndrome (BWS) is a congenital overgrowth disorder caused by various (epi)genetic alterations affecting the expression of genes on chromosome 11p15. Cardinal features include abdominal wall defects, macroglossia, and cancer predisposit...
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Maurizio Azzaro, Antonietta Specchiulli, Giovanna Maimone, Filippo Azzaro, Angelina Lo Giudice, Maria Papale, Rosabruna La Ferla, Rodolfo Paranhos, Anderson Souza Cabral, Alessandro Ciro Rappazzo, Monia Renzi, Pasquale Castagno, Pierpaolo Falco, Paola Rivaro and Gabriella Caruso
In open regions of the Ross Sea, the role of the microbial community in the turnover of organic matter has scarcely been investigated; indeed, very little is known on how microbial distribution and functional diversity respond to environmental conditions...
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Daniele Pergolini, Andrea Botticelli, Roberta Fascetti, Federica Rocchetti, Alessio Cirillo, Gianluca Tenore, Gaspare Palaia, Antonella Polimeni and Umberto Romeo
Introduction: Immune Checkpoint Inhibitor (ICI) drugs have led to a revolution in the treatment of different forms of cancer, shifting the target of action from cancer cells to the patient?s immune system, enhancing their responses against the tumor itse...
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Hu Qixiang, Yang Yang, Shi Weidong, Cao Weidong and Shi Yansheng
Cavitation is regarded as a considerable factor causing performance deterioration of pumps under off-design conditions, especially at overload conditions. To investigate the unsteady cavitation evolution around the tongue of a pump volute, and its influe...
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Pablo Sanz de Ojeda, Eugenio Sanz Pérez, Rubén Galindo and Cesar Sanz Riaguas
Through a study of glacial geomorphology and retrospective modeling of the stability of the slopes, it has been possible to reconstruct and know the mechanism of the formation of a large landslide induced by the retreat of the glacier corresponding to th...
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