Results 41 to 50 of about 80,357 (194)

Experimental and Numerical Analysis of the Flow Inside a Configuration Including an Axial Pump and a Tubular Exchanger [PDF]

open access: yes, 2010
In centrifugal and axial pumps, the flow is characterized by a turbulent and complex behavior and also by physical mechanisms such as cavitation and pressure fluctuations that are mainly due to the strong interactions between the fixed and mobile parts ...
BAKIR, Farid   +3 more
core   +5 more sources

A rational approach to comparing the performance of coaxial and conventional rotors [PDF]

open access: yes, 2009
The merit, in terms of its efficiency and performance, of the twin, contrarotating coaxial rotor configuration over the more conventional single rotor system has long been a point of contention.
Brown, R.E., Kim, Hyo Wan
core   +1 more source

Performance Characteristics in Draft Tube - A Review

open access: yesJournal of Advanced Mechanical Sciences, 2022
The draft tube elbow was modelled using the fundamental geometry of GAMM Francis turbine. Its purpose was to design a draft tube with improved hydrodynamic performance This was accomplished by integrating unfasten resource and commercialized technologies
Arpit Pawar
doaj  

Lightweight, variable solidity knitted parachute fabric [PDF]

open access: yes, 1973
A parachute fabric for aerodynamic decelerator applications is described. The fabric will permit deployment of the decelerator at high altitudes and low density conditions.
Matthews, F. R., Jr., White, E. C.
core   +1 more source

A Concurrent Perspective on Smart Contracts [PDF]

open access: yes, 2017
In this paper, we explore remarkable similarities between multi-transactional behaviors of smart contracts in cryptocurrencies such as Ethereum and classical problems of shared-memory concurrency.
Hobor, Aquinas, Sergey, Ilya
core   +2 more sources

The investigation of mechanical properties of welding quality of R65 type rail / R65 tipo bėgio termitinio virintinės jungties mechaninių savybių tyrimas

open access: yesMokslas: Lietuvos Ateitis, 2013
This article is about the aluminothermic welding quality ofrail joints, using different parameters. The thermit portion andpreheat time estimated for quality of welded joints as well asthe mechanical characteristics of aluminothermic welds in railshave ...
Mindaugas Rauduvė, Vitalijus Rudzinskas
doaj   +1 more source

Axiomatic Closure Operations, Phantom Extensions, and Solidity

open access: yes, 2018
In this article, we generalize a previously defined set of axioms for a closure operation that induces balanced big Cohen-Macaulay modules. While the original axioms were only defined in terms of finitely generated modules, these new ones will apply to ...
Dietz, Geoffrey D.
core   +1 more source

The analysis of physical properties of filter cloth [PDF]

open access: yesActa Montanistica Slovaca, 2005
This contribution deals with a measurement of physical properties of filter textiles. When comparing INOFIL PES-1 and FINET PES-1 filter textiles, the filter textile FINET PES-1 was found to provide better results than the filter textile INOFIL PES-1 in ...
Tomáš Bakalár   +2 more
doaj  

Maximum Thickness Location Selection of High Subsonic Axial Compressor Airfoils and Its Effect on Aerodynamic Performance

open access: yesFrontiers in Energy Research, 2021
Solidity and camber angle are key parameters with a primary effect on airfoil diffusion. Maximum thickness location has a considerable impact on blade loading distribution. This paper investigates correlations of maximum thickness location, solidity, and
Chuansijia Tao   +5 more
doaj   +1 more source

Solid Tumours [PDF]

open access: yes, 2018
Solid tumor chapter describes the main indication of stem cell transplanation in the various types of solid tumors.
Ruth Ladenstein   +2 more
openaire   +1 more source

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