نتایج جستجو برای: lifting techniques

تعداد نتایج: 640002  

2017
Mohammad Adel Helmy

There are different techniques for sinus lifting and augmentation; the factors that contribute to the survival rate of sinus augmentation and dental implant placement are still the subject of discussion. Sinus floor elevation is commonly used in cases where alveolar bone resorption has led to insufficient bone height for the placement of dental implants.

2005
Wade Spires

A study in lossless image compression using the lifting scheme is presented. We first suggest why lossless image compression is an important issue and the general idea behind lifting. A detailed approach to generating biorthogonal wavelets using the lifting scheme is provided, which is followed by a small example. The results from applying lifting to a variety of images are given in order to te...

Journal: :Math. Program. 2010
Alper Atamtürk Oktay Günlük

Mixed-integer rounding (MIR) is a simple, yet powerful procedure for generating valid inequalities for mixed-integer programs. When used as cutting planes, MIR inequalities are very effective for mixed-integer programming problems with unbounded integer variables. For problems with bounded integer variables, however, cutting planes based on lifting techniques appear to be more effective. This i...

2013
Dr Singh

Present study is focused to analyze the association between the low back injury risk and work factors in few small scale casting firms of Northern India. Lifting Index (LI) was used as a decisive factor to ascertain the risk level of low back injury. Four different jobs performed by 40 different workers of three small scale casting units were investigated with the help of NIOSH lifting equation...

Journal: :Operations Research 2004
Alper Atamtürk

Lifting is a procedure for deriving strong valid inequalities for a closed set from inequalities that are valid for its lower dimensional restrictions. It is arguably one of the most effective ways of strengthening linear programming relaxations of 0–1 programming problems. Wolsey (1977) and Gu et al. (2000) show that superadditive lifting functions lead to sequence independent lifting of valid...

پایان نامه :0 1374

the present study investigated the effect of the two vocabulary teaching techniques in est, namely the use of translation and the use of visual aids as two separate vocabulary teaching techniques. to answer the question of the study, a pretest (michigan test) was administered to the 58 randomly selected est students at khajeh nasiredin tusi university, faculty of mechanics. after the homogeneit...

Journal: :EURASIP J. Adv. Sig. Proc. 2017
Dong Chen Yanjuan Li Haiying Zhang Wenpeng Gao

This paper presents a new wavelet family for lossless image compression by re-factoring the channel representation of the update-then-predict lifting wavelet, introduced by Claypoole, Davis, Sweldens and Baraniuk, into lifting steps. We name the new wavelet family as invertible update-then-predict integer lifting wavelets (IUPILWs for short). To build IUPILWs, we investigate some central issues...

2013
Masahiro IWAHASHI Teerapong ORACHON

This report reduces the total number of lifting steps in a three-dimensional (3D) double lifting discrete wavelet transform (DWT), which has been widely applied for analyzing volumetric medical images. The lifting steps are necessary components in a DWT. Since calculation in a lifting step must wait for a result of former step, cascading many lifting steps brings about increase of delay from in...

Journal: :J. Symb. Comput. 1998
Michael Kalkbrener

In this paper we investigate how algorithms for computing heights, radicals, unmixed and primary decompositions of ideals can be lifted from a Noetherian commutative ring R to polynomial rings over R. It is a standard problem in mathematics to study which properties of a mathematical structure are preserved in derived structures. A typical result of this kind is the Hilbert Basis Theorem which ...

Journal: :Journal of occupational health 2005
Te-Shiang Cheng Tzu-Hsien Lee

This study recruited eleven healthy males and thirteen healthy females to examine their maximum two-handed isometric back lifting strength, upper-body lifting strength, arm lifting strength and shoulder lifting strength in three different horizontal distances of objects to be lifted (toes were anterior to, aligned with, and posterior to the exerted handle). The results showed that human lifting...

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