نتایج جستجو برای: lifting

تعداد نتایج: 12466  

2012
Trish G. Sevene Mark DeBeliso Joseph M. Berning Chad Harris Kent J. Adams

The 1991 NIOSH (National Institute for Occupational Safety and Health) revised lifting equation’s objective is to prevent or reduce lifting-related injuries, especially of the low back. However, the lifting equation is only applicable to two-handed lifting tasks. Oneand twohanded repetitive lifting tasks are a consistent part of many occupations. Understanding the metabolic demands of oneand tw...

2007
NOBORU NAKAYAMA

It is shown that a complex normal projective variety has non-positive Kodaira dimension if it admits a non-isomorphic quasi-polarized endomorphism. The geometric structure of the variety is described by methods of equivariant lifting and fibrations. Endomorphisms of the projective spaces are also discussed and some results on invariant subvarieties under the pullback of the endomorphism are obt...

2007
Aaron T. Deever Sheila S. Hemami

Reversible integer wavelet transforms are increasingly popular in lossless image compression, as evidenced by their use in the recently developed JPEG2000 image coding standard 1]. In this paper, a projection technique is described that exploits non-orthogonality among transform basis vectors to derive nal lifting steps for wavelet transforms. Additionally , projection-based predictions of deta...

2012
Frans Oort

(1b) Question. For which pairs (C0,H) does a lift exist? Note that the lifting problem for C0 is formally smooth. However we will see that in general the lifting problem for (C0,H) can be obstructed; in some cases a lifting does not exist, in several cases ramification in R is needed to make a lifting possible. In order to have a positive answer to this question it suffices to consider the case...

ژورنال: ارگونومی 2019

Background and Objectives: This study focused on lifting drill rods. Drilling is a repetitive and heavy mining operation with a high incidence and severity of musculoskeletal injuries. The purpose of this study was to examine how to lift a vertical drill bit (1.61m and 35kg in height) using two types of rod height and four feet positions, and finally compare them with the Lifting Index (LI). M...

Journal: :Pacific Journal of Mathematics 1983

Journal: :Mathematical Research Letters 1999

Journal: :International Journal of Mathematics and Mathematical Sciences 2006

Journal: :Proceedings of the American Mathematical Society 1974

Journal: :Michigan Mathematical Journal 1968

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