Results 41 to 50 of about 320,909 (283)

NOx Prediction Based on Cylinder Pressure Measurement for Engine Emission Monitoring [PDF]

open access: yes, 2011
Meeting European NOx emission standards is one of the biggest challenges facing automotive industries. The available technologies to measure NOx emission are dependent on measurement of different NOx species.
Gu, Fengshou   +4 more
core   +5 more sources

Digital disease management programme reduces chronic gastrointestinal symptoms among racially and socially vulnerable populations

open access: yesBMJ Open Gastroenterology
Objective Considerable disparities exist in access to gastrointestinal (GI) care and digestive outcomes across gender, racial, and socioeconomic groups. We evaluated (1) whether adults with chronic GI symptoms from diverse demographic groups would use a ...
Mark Pimentel   +5 more
doaj   +1 more source

Measurement of Aerodynamic and Acoustic Quantities Describing Flow around a Body Placed in a Wind Tunnel

open access: yesMeasurement Science Review, 2019
Aerodynamically generated noise affects passenger comfort in cars, high-speed trains, and airplanes, and thus, automobile manufacturers aim for its reduction.
Mahdal Miroslav   +2 more
doaj   +1 more source

The Cylinder Product and Cylinder Matrices

open access: yesJournal of Algebra, 1999
Let \(A\) be a coquasitriangular (CQT) bialgebra over a field \(k\). Let \(\sigma\) denote the invertible braid form on \(A\otimes A\). \textit{T.~tom Dieck} and \textit{R.~Häring-Oldenburg} introduced CQT bialgebras with a cylinder form [Forum Math. 10, No. 5, 619-639 (1998; Zbl 0974.17017)].
openaire   +2 more sources

Curve shortening by short rulers

open access: yesESAIM: Proceedings and Surveys, 2014
The aim is to construct a straight line between the two endpoints of a rectifiable curve using only a ruler, which is too short to connect them directly.
Stadler Peter
doaj   +1 more source

Upstream-Cylinder and Downstream-Cylinder Influence on the Hydrodynamics of a Four-Cylinder Group [PDF]

open access: yesJournal of Waterway, Port, Coastal, and Ocean Engineering, 2016
© 2016 American Society of Civil Engineers. This is the authors' accepted and refereed manuscript to the article.
Kamath, Arun   +3 more
openaire   +2 more sources

Investigation of cylinder deactivation and variable valve actuation on gasoline engine performance [PDF]

open access: yes, 2014
Increasingly stringent regulations on gasoline engine fuel consumption and exhaust emissions require additional technology integration such as Cylinder Deactivation (CDA) and Variable valve actuation (VVA) to improve part load engine efficiency.
Chavithra Kuruppu   +5 more
core   +1 more source

Conjugate Effects of Heat and Mass Transfer on Natural Convection Flow Across an Isothermal Horizontal Circular Cylinder With Chemical Reaction

open access: yesNonlinear Analysis, 2007
Natural convection flow across an isothermal cylinder immersed in a viscous incompressible fluid in the presence of species concentration and chemical reaction has been investigated. The governing boundary layer equations are transformed into a system of
Md. A. Hye, Md. M. Molla, M. A. H. Khan
doaj   +1 more source

Wrinkling of Elastic Cylinders With Material Properties Varying in Radial Direction

open access: yesFrontiers in Mechanical Engineering, 2022
Although the instability of graded elastic cylinders has been analyzed by many researchers, most of them focused on the core-shell cylinders and film-substrate structures with inhomogeneous Young’s modulus.
Chunxiao Zhan   +3 more
doaj   +1 more source

A numerical study of an inline oscillating cylinder in a free stream [PDF]

open access: yes, 2011
Simulations of a cylinder undergoing externally controlled sinusoidal oscillations in the free stream direction have been performed. The frequency of oscillation was kept equal to the vortex shedding frequency from a fixed cylinder, while the amplitude ...
Leontini, Justin S.   +5 more
core   +1 more source

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