Results 261 to 270 of about 117,271 (297)

Lifting Defect Improvement of Plasma Enhanced Nitride

ECS Meeting Abstracts, 2014
ABSTRACT Plasma enhanced nitride (PESiN) has been applied for various layers in semiconductor device such as spacer, etch stopping layer, strain layer, hard mask. In order to match with each function of PESiN, process condition should be well optimized in terms of etch rate, stress, uniformity.
Hyunkwan Yu, Dong Suk Shin, Sangkoo Kang, Moonhan Park, Nea-In Lee, Ja-Hm Ku, Yonghan Roh   +6 more
openaire   +1 more source

Lift Enhancement for Upper Surface Blowing Airplanes

31st AIAA Applied Aerodynamics Conference, 2013
Various flow control techniques are applied to airplane configurations that utilize Upper Surface Blowing (USB) in order to enhance their takeoff and landing capabilities. These techniques include geometrical changes to the lifting surfaces and the engine nozzle.
Yoram Yadlin, Arvin Shmilovich
openaire   +1 more source

Roughness related lift enhancement to symmetric airfoils

15th Applied Aerodynamics Conference, 1997
Russian researchers have reported an effect in which an incremental lift force is created on a symmetric wing in a flow as a result of the difference in the roughness of its upper and lower surfaces. The effect includes the generation of lift for the symmetric wing at zero degrees angle-ofattack and an increase in the lift-to-drag ratio at low to ...
Robert Ranzenbach, Mark Beierle, John Anderson, Jr., Robert Ranzenbach, Mark Beierle, John Anderson, Jr.   +5 more
openaire   +1 more source

Lift Enhancement over a Flexible Delta Wing

2nd AIAA Flow Control Conference, 2004
*† Passive lift enhancement over a flexible, low-sweep delta wing has been demonstrated as a potential method for control of vortex-dominated wing flows. The lift enhancement was achieved in the post-stall region of a wing of 50° leading edge sweep. An increase in timeaveraged lift coefficient of up to 45%, and a delay in stall of up to 9 degrees were ...
Gordon Taylor, Ismet Gursul
openaire   +1 more source

The mechanisms of lift enhancement in insect flight

Naturwissenschaften, 2004
Recent studies have revealed a diverse array of fluid dynamic phenomena that enhance lift production during flapping insect flight. Physical and analytical models of oscillating wings have demonstrated that a prominent vortex attached to the wing's leading edge augments lift production throughout the translational parts of the stroke cycle, whereas ...
openaire   +2 more sources

Lift Enhancement by Static Extended Trailing Edge

Journal of Aircraft, 2007
A static extended trailing edge attached to a NACA0012 airfoil section is studied for achieving lift enhancement at a small drag penalty. It is indicated that the thin extended trailing edge can enhance the lift, whereas the zero-lift drag is not significantly increased.
Tianshu Liu, Javier Montefort, W. Liou, S. R. Pantula, Qamar A. Shams   +4 more
openaire   +1 more source

Enhanced Plunger Lift Performance Utilizing Reservoir Modeling

SPE Production and Operations Symposium, 2013
Abstract Liquid loading is an important determinant for the performance of tight, unconventional gas wells. Although plunger lift is one of the best solutions when applicable, marginal economics of unconventional gas production does not tolerate un-optimized plunger lift performance.
E. Parsa, E. Ozkan, B. Lowery, D. Cathcart, M. Lohmann   +4 more
openaire   +1 more source

Airfoil Lift Enhancement Using Magneto-Aerodynamic Interaction

3rd AIAA Flow Control Conference, 2006
The effect of magneto-aerodynamic interaction on the flow past an airfoil has been investigated. The introduction of magnetic Lorentz forces on the lower side of the airfoil was found to produce lift by altering the surface pressure distribution. The effect of various parameters on the lift generated has been studied.
openaire   +1 more source

To lift or recut: Changing trends in LASIK enhancement

Journal of Cataract and Refractive Surgery, 2003
To report serious complications caused by recutting laser in situ keratomileusis (LASIK) flaps for enhancement and reconsider the current preferred method of LASIK enhancement.Multiple surgeon practices.This retrospective noncomparative nonconsecutive case series comprised LASIK patients in the private practices of 9 experienced refractive surgeons and
Roy S, Rubinfeld, David R, Hardten, Eric D, Donnenfeld, Raymond M, Stein, Douglas D, Koch, Mark G, Speaker, Joseph, Frucht-Pery, Anthony J, Kameen, Gerald J, Negvesky   +8 more
openaire   +2 more sources

Image enhancement based on lifting wavelet transform

2009 4th International Conference on Computer Science & Education, 2009
The traditional image enhancement algorithms enhance noise signal in image while they enhance image, which leads to the de-scent of information entropy. Designing image enhancement systems with good nature is a goal which all researchers pursue. Method of lifting can best deal with MRA Multi-resolution Analysis method which is time and memory consuming
openaire   +1 more source