Work conditions on the logging job sites with motor manual felling
نویسندگان
چکیده
منابع مشابه
comparison of noise exposure levels on chainsawers in motor-manual tree felling (case study: hyrcanian forest)
chainsaw is an important machine for tree felling limbing and bucking in hyrcanian forest and the major problems related to using forest machines was sound intensity. the aim of this study was to measure the sound level in occupational exposure of workers, determine the exposure time of workers and comparison of the variables among the workers. this study was carried out in namkhaneh district i...
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Nacrtak Motor-manual tree felling is the most labor-intensive component of all harvesting operations and frequently represents a bottleneck in wood production. The study of motor-manual tree felling was carried out in two compartments in the Namkhaneh district of Kheyrud Forest. The objects of this study were as follows: time study of tree felling operations, estimate of chainsaw productivity a...
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cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
Motor unit firing patterns in light manual work
Work related musculoskeletal disorders (WMSDs) in the shoulder/neck area and the upper extremities are a common problem among computer operators, especially women. A frequent type of WMSDs in the shoulder/neck area, which also may exist in the upper extremities, is chronic muscle pain (myalgia). The mechanisms for the development (etiology) of myalgia in the shoulder/neck area and in the upper ...
متن کاملharvested log damage associated with motor-manual tree felling and bucking (case study: beech and hornbeam trees in kheyrud forest)
the log damage and value loss were examined by felling and bucking function, species, and damage type, in kheyrud forest in namkhaneh district in the hyrcanian forest of iran. in order to calculate the wood value following tree felling and bucking, 250 trees and 167 logs consisting of beech and hornbeam species were measured. there were five types of damage recorded following the tree felling o...
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ژورنال
عنوان ژورنال: Resources and Technology
سال: 2008
ISSN: 2307-0048
DOI: 10.15393/j2.art.2008.1862