نتایج جستجو برای: lifting

تعداد نتایج: 12466  

Background: The revised National Institute for Occupational Safety and Health (NIOSH) lifting equation (RNLE) is commonly used for risk assessment of manual handling, and can estimate low back pain (LBP) biomechanical stressors of lifting and/or lowering of loads. The aim of this study was to evaluate manual material handling by using the RNLE, LBP, and LBP disability index (LBPDI) among worker...

ژورنال: ارگونومی 2017

Introduction: Heavy load lifting or occupational and individual factors are effective hazard agents in the occurrence of musculoskeletal disorders. Therefore, the aim of the present study was investigating the correlation of musculoskeletal disorders with work ability index and allowable load lifting limit. Methods: This analytical and cross-sectional study was conducted using census (n = 60...

2004
Wim Sweldens

The Wim Sweldens developed the lifting scheme for the construction of biorthogonal wavelets. The main feature of the lifting scheme is that all constructions are derived in the spatial domain. It does not require complex mathematical calculations that are required in traditional methods. Lifting scheme is simplest and efficient algorithm to calculate wavelet transforms. It does not depend on Fo...

Journal: :Journal of neurophysiology 2016
Kevin M Trewartha J Randall Flanagan

Weight predictions used to scale lifting forces adapt quickly when repeatedly lifting unusually weighted objects and are readily updated by explicit information provided about weight. In contrast, weight predictions used when making perceptual judgments about weight are more resistant to change and are largely unaffected by explicit information about weight. These observations suggest that dist...

2012
Christina B Petersen Louise Eriksen Janne S Tolstrup Karen Søgaard Morten Grønbæk Andreas Holtermann

BACKGROUND Occupational heavy lifting is known to impose a high cardiovascular strain, but the risk of ischemic heart disease (IHD) from occupational heavy lifting is unknown. The objective was to investigate the association between occupational heavy lifting and risk of IHD and all-cause mortality, and the influence of occupational and leisure time physical activity on this association. METH...

Journal: :iranian journal of otorhinolaryngology 0
mohammad reza vahidi otorhinolaryngology research center, shahid sadoughi university of medical sciences, yazd, iran. abolfazl mollasadeghi department of occupational medicine, shahid sadoughi university of medical sciences, yazd, iran. honeyeh shahbazian otorhinolaryngology research center, shahid sadoughi university of medical sciences, yazd, iran. nasim behniafard otorhinolaryngology research center, shahid sadoughi university of medical sciences, yazd, iran. mohammad hossein dadgarnia otorhinolaryngology research center, shahid sadoughi university of medical sciences, yazd, iran.

introduction: in order to achieve a higher success rate for tympanoplasty, different techniques have been developed, and a wide variety of grafting materials have been developed. one of the techniques currently receiving considerable attention involves not lifting the remaining of eardrum from the malleus and embedding the graft underneath in order to repair the eardrum correctly in its origina...

2007
Sibylle Schupp

Generic algebraic libraries run the risk of losing eeciency compared to non-generic libraries. To solve the seeming antagonism between genericity and eeciency, we propose a technique which we call lifting. The lifting process is an abstraction process which starts with a well-known eecient algorithm and abstracts carefully from it. As lifting guarantees that fast non-generic algorithms instanti...

Journal: :Math. Program. 2011
Alper Atamtürk Vishnu Narayanan

Lifting is a procedure for deriving valid inequalities formixed-integer sets from valid inequalities for suitable restrictions of those sets. Lifting has been shown to be very effective in developing strong valid inequalities for linear integer programming and it has been successfully used to solve such problems with branch-and-cut algorithms. Here we generalize the theory of lifting to conic i...

Journal: :International journal of occupational safety and ergonomics : JOSE 2002
Issachar Gilad Daniel Boughanim

A computer driven technique to analyze lifting forces, in non-homogeneous load situations, is described and tested. Analysis is based on a dynamic algorithm aimed to evaluate unconstrained lifting posture and non-homogeneous content of loads. For inputs we use actual geometrical body postures in the form of 3-dimensional co-ordinates obtained from pictures taken at a work site. The outputs show...

2015
Iwan Budihardjo Stephen Vardeman S. Keith Adams Timothy Van Voorhis

The lifting task is the major activity contributing to the risk of lower back injur}. The purpose of this study was to examine the mechanical stresses on the lower back during manual lifting and to analxze how people adapt to the stresses. This purpose was accomplished by approaching the mechanical stresses on the lower back from three different perspectives. The effects of manual lifting tasks...

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