نتایج جستجو برای: lifting modules

تعداد نتایج: 70058  

Journal: :Industrial health 2009
Tzu-Hsien Lee

Ten young male participants were recruited to test their maximum symmetric and asymmetric isoinertial lifting capabilities from floor to the knuckle height in different container dimensions varied in both width and length. The results showed that the order from the highest to lowest lifting capability for the lifting modes was symmetric lifting, asymmetric lifting with leg rotation and asymmetr...

ژورنال: طب کار 2021

Background: today, musculoskeletal disorders are considered as a serious threat for workers, and one of the main activities, which leads to these problems, is lifting tasks. Moreover, workers in printing industry are widely involved in inappropriate postures and lifting loads. The aim of this study was to compare the results of assessment of lifting tasks with KIM-LHC, WISHA and Snook tables in...

Journal: :J. Comb. Optim. 2000
Zonghao Gu George L. Nemhauser Martin W. P. Savelsbergh

We investigate lifting i e the process of taking a valid inequality for a polyhe dron and extending it to a valid inequality in a higher dimensional space Lifting is usually applied sequentially that is variables in a set are lifted one after the other This may be computationally unattractive since it involves the solution of an optimization problem to compute a lifting coe cient for each varia...

In this paper, by considering the notion of extended BCK-module, we define the concepts of free extended BCK-module, free object in category of extended BCK-modules and we state and prove some related results. Specially, we define the notion of idempotent extended BCK-module and we get some important results in free extended BCK-modules. In particular, in category of idempotent extended BCK-mod...

The theory of local homology modules was initiated by Matlis in 1974. It is a dual version of the theory of local cohomology modules. Mohammadi and Divaani-Aazar (2012) studied the connection between local homology and Gorenstein flat modules by using Gorenstein flat resolutions. In this paper, we introduce generalized local homology modules for complexes and we give several ways for computing ...

Journal: :international journal of occupational hygiene 0
hassan sadeghi naeini assit. prof. iran univ. of science & technology (iust)

original article   health, safety and environment management has a vast area in which ergonomics aspects is known as one of the related aspects. in this case study the occupational hygiene by ergonomic intervention was focused. one of the prevalence activities among industrial sectors' worker in the developing countries is manual lifting tasks and other related physical activities which are imp...

Journal: :bulletin of the iranian mathematical society 0
n. ‎jing department of mathematics, ‎shanghai university, ‎shanghai 200444‎, ‎china. c. wang school of information and mathematics, ‎yangtze university, ‎jingzhou 434023‎, ‎china.

‎highest weight modules of the double affine lie algebra $widehat{widehat{mathfrak{sl}}}_{2}$ are studied under a‎ ‎new triangular decomposition‎. ‎singular vectors of verma modules are‎ ‎determined using a similar condition with horizontal affine lie‎ ‎subalgebras‎, ‎and highest weight modules are described under the‎ ‎condition $c_1>0$ and $c_2=0$.

Journal: :bulletin of the iranian mathematical society 2011
m. roggero

Granular Pile Anchor (GPA) considers one of the solution foundation techniques, designed to mitigate the lifting of the sole resulting from expansive soils. This study work is to investigate the uplift movement response of (GPA) in expansive soil. The laboratory tests have been performed on an experimental. The effects of several parameters, such as length (L) of (GPA) and diameter (D), the thi...

Objective:  back pain is one of the most common health problems in different societies of the world, especially in industrialized countries. The aim of this study was to compare the electromyography activity of abdominal muscles and hamstrings in women with low back pain in different lifting positions. Methods: The present study was a quasi-experimental and laboratory study. The statistical sam...

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