نتایج جستجو برای: clipping

تعداد نتایج: 4796  

2017
Kimberley E. Wever Florentine J. Geessink Michelle A. E. Brouwer Alice Tillema Merel Ritskes-Hoitinga

Toe clipping and ear clipping (also ear notching or ear punching) are frequently used methods for individual identification of laboratory rodents. These procedures potentially cause severe discomfort, which can reduce animal welfare and distort experimental results. However, no systematic summary of the evidence on this topic currently exists. We conducted a systematic review of the evidence fo...

Journal: :Computers & Graphics 2012
Qi Lou Ligang Liu

Keywords: Bé zier curve Curve intersection Bé zier clipping Hybrid clipping a b s t r a c t This paper presents a novel approach, called hybrid clipping, for computing all intersections between two polynomial Bé zier curves within a given parametric domain in the plane. Like Bé zier clipping, we compute a 'fat line' (a region along a line) to bound one of the curves. Then we compute a 'fat curv...

Journal: :Speech Communication 2015
Fanhu Bie Dong Wang Jun Wang Thomas Fang Zheng

Clipping is often observed in speech acquisition, due to the limited numerical range or the non-linear compensation of recording devices. The clipping inevitably changes the spectrum of speech signals, and thus partially distorts the speaker information contained in the signal. This paper investigates the impact of signal clipping on speaker recognition, and proposes a simple yet effective clip...

Journal: :iranian journal of veterinary research 2007
a. a. nekooeian t. mashhoodi

the objective of this study was to determine the chronology of changes in blood pressure in renalhypertension induced by solid plexiglass clips in rats. saw blades with the thickness of 0.21-0.22 mm wereused to make clips sized 4 × 2 × 2 mm from a piece of 2-mm thick plexiglass. rats were subjected to shamoperation or left renal arterial clipping, and 1, 2, 3 and 4 weeks later blood pressure, a...

2008
Fuhua Cheng

A parallel line clipping algorithm and its implementation on a parallel clipping hardware environment are presented. We first develop a simple theory to show that parallel clipping is possible for all types of line segments. We then present the architecture of a hardware environment based on which parallel clipping is to be implemented. The parallel line clipping algorithm and its implementatio...

1999
S. Sung Paul P. Kormanik

Seasonal sucrose metabolism (sucrolysis) was studied in taproot cambial tissues of nursery-grown loblolly pine seedlings to assess the value of top clipping. In sucrose-importing taproots of nonclipped seedlings, sucrose synthase (SS) was the dominant enzyme for sucroti cleavage, and its activity exhibited a distinct seasonal activity. Both root SS activity and growth were most active during fa...

Journal: :the modares journal of electrical engineering 2011
mahdi bekrani mojtaba lotfizad

one of the problems associated with adaptive fir filters in the identification of systems with long impulse responses, is their excessive computational complexity. recently a new kind of adaptive filters, based on three-level clipping of the input signal has been presented for reduction of their computational complexity. in this paper, a theoretical analysis of the steady-state misalignment of ...

Journal: :IEEE Trans. Vis. Comput. Graph. 2003
Daniel Weiskopf Klaus Engel Thomas Ertl

We propose clipping methods that are capable of using complex geometries for volume clipping. The clipping tests exploit per-fragment operations on the graphics hardware to achieve high frame rates. In combination with texture-based volume rendering, these techniques enable the user to interactively select and explore regions of the data set. We present depth-based clipping techniques that anal...

2005
Sara Sandberg James P. LeBlanc Bane Vasic

The high peak-to-average power ratio (PAR) in Orthogonal Frequency Division Multiplexing (OFDM) modulation systems can significantly reduce performance and power efficiency. A number of methods exist that combat large signal peaks in the transmitter. Recently several methods have emerged that alleviate the clipping distortion in the receiver. We analyze the performance of two receiver clipping ...

2013
Harpreet Singh Chandika Mohan Loveleen Kaur

In this research paper, a variation of clipping ,RCF and tone reservation/injection techniques are examined with proper analysis of clipping ratio (CR) and depth factor(Alpha) in fine tuning of a PAPR reducing system. By exploiting the sparsity of clipping events in the time domain relative to predefined clipping threshold and generate the OFDM bins of the incoming broadband channel into narrow...

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