Results 121 to 130 of about 26,083 (287)

Improving the Design of a Multi-Gear Pump Switchgear Using CFD Analysis

Applied Sciences
Gear pumps are hydraulic machines capable of transferring energy and performing work in pumping fluid. This study presents an analysis of the hydrodynamic model of an external multiple gear pump in order to analyze the fluid flow in combinations of ...
Olga Zharkevich, Tatyana Nikonova, Łukasz Gierz, Olga Reshetnikova, Alexandra Berg, Łukasz Warguła, Andrey Berg, Bartosz Wieczorek, Wiktor Łykowski, Oxana Nurzhanova   +9 more
doaj   +1 more source

The company you keep: becoming one(self) in an Indonesian convent En bonne compagnie : devenir (quelqu’)un dans un couvent indonésien Pergaulan dalam biara di Indonesia: sebuah proses pembentukan diri*

Journal of the Royal Anthropological Institute, EarlyView.
This article investigates companionate processes of self‐making in a religious community of Catholic nuns in eastern Indonesia. I argue that the sociality of the convent establishes a unique context for understanding the effects of one's company on processes of self‐becoming.
Meghan Rose Donnelly
wiley   +1 more source

EXPERIENCING MORE‐THAN‐PANDEMIC WATERSCAPES: An Intra‐urban Comparison of Water Practices and Geographies in Nairobi

International Journal of Urban and Regional Research, EarlyView.
Abstract While many African cities, such as Nairobi, fared comparatively well during the pandemic years, urban residents still faced compounded uncertainties and an unequal distribution of burdens that were infrastructurally co‐mediated, for example, within and through place‐specific waterscapes and their socio‐technical infrastructures.
Moritz Kasper, Elizabeth Wamuchiru, Sophie Schramm   +2 more
wiley   +1 more source

Surge Instability on a Cavitating Propeller [PDF]

, 2000
This study details experiments investigating a previously unrecognized surge instability on a cavitating propeller in a water tunnel. The surge instability is explored through visual observation of the cavitation on the propeller blades and in the tip ...
Brennen, C. E., Duttweiler, M. E.
core   +1 more source

Sustainability Controls as Technologies of Actorhood: Constructing the Responsible Supplier in Global Supply Chains Le contrôle de la durabilité comme technologie d'actorialité : façonner le fournisseur responsable dans les chaînes d'approvisionnement mondiales

Contemporary Accounting Research, EarlyView.
ABSTRACT This paper examines how accounting and control practices constitute and distribute agency and responsibility for sustainability in global supply chains. Drawing on a field study in the fashion industry, we describe the sustainability control practices used by a major buyer firm vis‐à‐vis its suppliers and trace their evolution from a ...
Martin Messner, Marek Reuter, Torkel Strömsten   +2 more
wiley   +1 more source

Comparison of a Miniaturized Implantable Two‐Stage Rotodynamic Blood Pump to Equivalent Single‐Stage Concepts

Artificial Organs, EarlyView.
This study aims to evaluate the potential of a multistage pump design to enhance hemocompatibility in left ventricular assist devices. We found that the two‐stage concept offers favorable hemolysis measures compared to single‐stage designs, as the reduction in peak shear stresses outweighs the disadvantage associated with prolonged residence time ...
Sarah Linnemeier, Bente Thamsen, Stefan Maric, Bernhard Semlitsch, Benjamin Torner, Daniel Zimpfer, Marcus Granegger   +6 more
wiley   +1 more source

Influence of the Radial Gap on the External Gear Pump Performance

Applied Sciences
The paper presents a numerical and experimental study of the radial gap influence on the external gear pump performance. The numerical study is performed with a two-dimensional (2D) computational fluid dynamics (CFD) model developed and advanced in ...
Alexander Mitov, Nikolay Nikolov, Ivan Kralov   +2 more
doaj   +1 more source

NASA/USRA high altitude research aircraft. Gryphon: Soar like an eagle with the roar of a lion [PDF]

At the equator, the ozone layer ranges from 65,000 to 130,000+ feet. This is beyond the capabilities of the ER-2, which is NASA's current high altitude reconnaissance aircraft.
Coble, Scott, Mcray, Mike, Nunes, Anne, Ong, Audrey, Rivera, Jose, Wong, Walter   +5 more
core   +1 more source

Supporting Children With a Chronic Disease and Their Parents When Admitted to Hospital: A Scoping Review of Psychosocial Supports

Acta Paediatrica, EarlyView.
Importance of psychosocial support. ABSTRACT Aim The aim of this scoping review was to identify, examine, and summarize available evidence regarding psychosocial supports provided to children with a chronic disease when admitted to hospital and their parents. Method The JBI methodology for conducting and reporting scoping reviews was followed.
Lyndsay Jerusha MacKay, Nolan Lagrisolal, Una Chang, Matthew Christoffersen, K. Alix Hayden, Kathryn Birnie, Tammie Dewan   +6 more
wiley   +1 more source

Experimental Study of the Kinematics of a Double-Row Planetary Mechanism Using Two Elliptical External Gears

Advanced Engineering Research
Introduction. Mechanisms with non-circular gears are of wide interest to researchers and inventors due to their compactness and the implementation of a wide range of transfer functions.
A. A. Prikhodko, N. N. Belina, A. V. Novitskiy, M. M. Shchetinin   +3 more
doaj   +1 more source