Results 121 to 130 of about 315,711 (332)

Theoretical methods and design studies for NLF and HLFC swept wings at subsonic and supersonic speeds [PDF]

open access: yes
Laminarization of the boundary layer on the surface of aircraft wings can be accomplished by the use of concepts such as Natural Laminar Flow (NLF), Laminar-Flow Control (LFC), and Hybrid Laminar-Flow Control (HLFC).
Goradia, Suresh H.   +1 more
core   +1 more source

Laminar Flow Microarray Patterning by Perpendicular Electrokinetic Focusing [PDF]

open access: yes, 2005
This paper describes a method to pattern microarrays in a closed microfluidic device. Two perpendicular laminar flow streams can operate in terms to sequentially coat the surface of a flow-chamber with parallel lanes in two directions.
Besselink, G.A.J.   +5 more
core   +2 more sources

Hysteresis at low Reynolds number: the onset of 2D vortex shedding

open access: yes, 2000
Hysteresis has been observed in a study of the transition between laminar flow and vortex shedding in a quasi-two dimensional system. The system is a vertical, rapidly flowing soap film which is penetrated by a rod oriented perpendicular to the film ...
C. H. K. Williamson   +19 more
core   +1 more source

A Novel Sprayable Fibrinogen/Glycosaminoglycans/Collagen‐Based Bioink for Skin Wound Healing Applied by a Handheld Dual‐Head Airbrush

open access: yesAdvanced Healthcare Materials, EarlyView.
A dual‐head airbrush‐based spraying device, combined with a fibrinogen bioink enriched with glycosaminoglycans and collagen, enables the delivery of biomaterials and cells to promote wound healing. This system demonstrates effective skin regeneration in vitro and in vivo, with comparable results to autografts.
Paula Pleguezuelos‐Beltrán   +7 more
wiley   +1 more source

Experimental and numerical analyses of laminar boundary-layer flow stability over an aircraft fuselage forebody [PDF]

open access: yes
Fuelled by a need to reduce viscous drag of airframes, significant advances have been made in the last decade to design lifting surface geometries with considerable amounts of laminar flow. In contrast to the present understanding of practical limits for
Holmes, Bruce J., Vijgen, Paul M. H. W.
core   +1 more source

Conditioned Media from Mechanically Stimulated Macrophages Upregulate Osteogenic Genes in Human Mesenchymal Stromal Cells

open access: yesAdvanced Healthcare Materials, EarlyView.
Bone fracture healing is a complex, timely orchestrated scenario involving multiple cell types and a plethora of cytokines and regulatory factors. To gain further insight, an in vitro model to a) study macrophage polarization under mechanical load in a fibrin hydrogel and b) subsequently assess the effect of conditioned media derived from macrophages ...
Anne Géraldine Guex   +4 more
wiley   +1 more source

Transition from laminar to turbulent pipe flow as a process of growing material instabilities

open access: yesResults in Engineering
Experiments show that a laminar pipe flow starts to change to turbulence at Reynolds numbers around 2000. However, the classical Navier-Stokes theory fails to explain such a transition; according to it the pipe flow should always be stable and laminar ...
Saptarshi Kumar Lahiri   +1 more
doaj  

Preliminary Results in the Investigation of In Vivo Iliac and Coronary Flow Collision, Vortex Formation, and Disorganized Flow Degeneration: Insights from Invasive Cardiology Based on Fluid Mechanics Principles and Practices

open access: yesFluids
Background: In the research of coronary artery disease, the precise initial injury that starts the atherosclerotic cascade remains unidentified. Moreover, the mechanisms governing the progression or regression of coronary plaque are not yet fully ...
Thach Nguyen   +22 more
doaj   +1 more source

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