Results 1 to 10 of about 265,325 (316)

Endoscopic clipping [PDF]

open access: yesJournal of Digestive Diseases, 2008
Endoscopic clips are relatively new devices that have been shown to be effective for the control of acute gastrointestinal hemorrhage. Various different models are available and offer simplicity of use with relatively few complications. Recently, endoscopic clips have been used for a variety of non‐hemorrhagic conditions.
Michael J, Grupka, Jay, Benson
openaire   +2 more sources

Frequency-Selective PAPR Reduction for OFDM [PDF]

open access: yes, 2019
We study the peak-to-average power ratio (PAPR) problem in orthogonal frequency-division multiplexing (OFDM) systems. In conventional clipping and filtering based PAPR reduction techniques, clipping noise is allowed to spread over the whole active ...
Gökceli, Selahattin   +4 more
core   +3 more sources

Effect of Planting Date, Clipping Height, and Cultivar on Forage and Grain Yield of Winter Wheat in Argentinean Pampas [PDF]

open access: yes, 2006
In Argentinean Pampas, new wheat (Triticum aestivum L.) cultivars are routinely introduced to farmers for dual-purpose production. The objective of this study was to evaluate the effect of planting date, clipping height on forage, and grain yield for ...
Arroquy, Jose Ignacio   +3 more
core   +1 more source

CLIPS proceedings [PDF]

open access: yes2011 International Conference on Indoor Positioning and Indoor Navigation, 2011
This paper presents the latest developments related to an optical indoor positioning system named CLIPS which consists of a projector and a mobile camera. With the projector a pattern of laser spots is projected on any surface in an indoor environment. For the camera pose estimation in respect to the projector device the camera has to capture the scene
Tilch Sebastian, Mautz Rainer
openaire   +1 more source

Improving the chromatic dispersion tolerance in long-haul fibre links using the coherent optical orthogonal frequency division multiplexing [PDF]

open access: yes, 2010
Numerical simulations of the coherent optical orthogonal frequency division multiplexing modems are undertaken to investigate the effect of the adaptive modulation, the number of sub-carriers, the cyclic prefix (CP) length, the clipping ratio ...
Brendon   +21 more
core   +2 more sources

VoroCrust: Voronoi Meshing Without Clipping

open access: yes, 2020
Polyhedral meshes are increasingly becoming an attractive option with particular advantages over traditional meshes for certain applications. What has been missing is a robust polyhedral meshing algorithm that can handle broad classes of domains ...
Abdelkader, Ahmed   +6 more
core   +1 more source

Correlative coding with clipping and filtering technique in OFDM Systems [PDF]

open access: yes, 2003
The major setbacks of Orthogonal Frequency Multiplexing (OFDM) is its peak-to-average power ratio (PAPR) and intercarrier interference (ICI). The occurrence of these factors restricts its application.
Fisal, Norsheila, Yusof, S. K.
core   +1 more source

Theory Based on Device Current Clipping to Explain and Predict Performance Including Distortion of Power Amplifiers for Wireless Communication Systems [PDF]

open access: yes, 2008
Power amplifiers are critical components in wireless communication systems that need to have high efficiency, in order to conserve battery life and minimise heat generation, and at the same time low distortion, in order to prevent increase of bit ...
Tian, Yunjia, Tian, Yunjia
core   +1 more source

EVM and Achievable Data Rate Analysis of Clipped OFDM Signals in Visible Light Communication [PDF]

open access: yes, 2012
Orthogonal frequency division multiplexing (OFDM) has been considered for visible light communication (VLC) thanks to its ability to boost data rates as well as its robustness against frequency-selective fading channels.
D O’Brien   +30 more
core   +2 more sources

EBs clip CLIPs to growing microtubule ends [PDF]

open access: yesThe Journal of Cell Biology, 2008
Proteins that track growing microtubule (MT) ends are important for many aspects of intracellular MT function, but the mechanism by which these +TIPs accumulate at MT ends has been the subject of a long-standing controversy. In this issue, Bieling et al. (Bieling, P., S. Kandels-Lewis, I.A. Telley, J. van Dijk, C. Janke, and T. Surrey. 2008. J.
openaire   +4 more sources

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