نتایج جستجو برای: hand tractor

تعداد نتایج: 259991  

Journal: :international journal of occupational hygiene 0
parvin nassiri department of occupational health engineering, tehran university of medical sciences, tehran, iran. irajali mohammadi department of occupational health engineering, occupational health research center, iran university of medical sciences, tehran, iran. mohammadhosein beheshti department of occupational health engineering , faculty of health, gonabad university of medical sciences, gonabad , iran. kamal a azam department of biostatistics, school of public health, tehran university of medical sciences, tehran, iran.

the purpose of this study was to assess exposure to hand-arm vibration in tiller users, forty users of tiller in northeastern provinces of iran were examined to measure hand-arm vibration parameters such as root mean square acceleration (rms), total equivalent acceleration, vibration dose value (vdv) and crest factor in three directions (x, y, and z) and various operating modes for comparing th...

Journal: :Journal of agromedicine 2016
Pamela J Tinc Paul Ayers John J May Mark A Purschwitz Samantha Park Barbara Bayes Julie Sorensen

Fatalities due to tractor overturns have long plagued the U.S. farm community. Constituting 20% of agricultural fatalities, tractor overturns contribute significantly to high rates of fatal injuries. In the past, many efforts have been directed toward reducing tractor overturns, with one successful US-based program offering rebates to farmers who retrofit their tractors with rollover protective...

Journal: :international journal of occupational hygiene 0
mohammad hossein beheshti parviz ghandhari

oroginal article tiller is a handy multi – a purpose tractor is used in agriculture. the noise emitted from tiller may be seriously affected auditory system users. the purpose of this study was to evaluate the exposure to noise in operators of this device. in this study 36cultivator tiller was examined. measurement of sound is based in iso 5131-1996 and iso 7216 standard and was conducted in in...

2004

Simultaneous (or concurrent) Engineering, is a concept which should be normal nowadays. Then, without early and simultaneous involvement of all departments, specialists, special suppliers and potential external consultants, you are no longer able to develop these ever more complex agricultural machines. In that case „simultaneous“ means to be faster on the market, because all manufacturers can ...

2012
Daniel M. Saman Henry P. Cole Agricola Odoi Melvin L. Myers Daniel I. Carey Susan C. Westneat

BACKGROUND Agricultural tractor overturns without rollover protective structures are the leading cause of farm fatalities in the United States. To our knowledge, no studies have incorporated the spatial scan statistic in identifying high-risk areas for tractor overturns. The aim of this study was to determine whether tractor overturns cluster in certain parts of Kentucky and identify factors as...

2017
Maurizio Cutini Carlo Bisaglia

Operator exposure to high levels of whole-body vibration (WBV) presents risks to health and safety and it is reported to worsen or even cause back injuries. Work activities resulting in operator exposure to whole-body vibration have a common onset in off-road work such as farming. Despite the wide variability of agricultural surface profiles, studies have shown that with changing soil profile a...

Journal: :تحقیقات مهندسی کشاورزی 0
یوسف عباسپور گیلانده استادیار گروه مهندسی مکانیک ماشین های کشاورزی دانشکده کشاورزی دانشگاه محقق اردبیلی مهدی آهنی دانشجوی کارشناسی ارشد عزت الله عسکری اصلی ارده استادیار گروه مهندسی مکانیک ماشین های کشاورزی دانشکده کشاورزی دانشگاه محقق اردبیلی ولی رسولی شربیانی مربی پژوهشی گروه مهندسی مکانیک ماشین های کشاورزی دانشکده کشاورزی دانشگاه محقق اردبیلی امید سفالیان استادیار گروه مهندسی زراعت و اصلاح نباتات دانشکده کشاورزی دانشگاه محقق اردبیلی

soil compaction is a major problem in many parts of the world. the determination of soil compaction profiles requires fast sampling systems to keep pace with the change in soil moisture condition over time. soil cone penetrometers are commonly used for this purpose. a tractor-mounted soil cone penetrometer was designed and fabricated with multiple probes and the ability to determine cone index ...

Journal: :مهندسی بیوسیستم ایران 0
رسول لقمانپور زرینی پردیس کشاورزی و منابع طبیعی دانشگاه تهران اسداله اکرم عضو هیئت علمی دانشگاه تهران-پردیس کشاورزی و منابع طبیعی-دانشیار رضا علیمردانی عضو هیئت علمی دانشگاه تهران-پردیس کشاورزی و منابع طبیعی-استاد سید رضا طباطبایی کلور عضو هیئت علمی دانشگاه علوم کشاورزی و منابع طبیعی ساری-دانشیار

the aims of this study were about determining of amount of accuracy in tractor-moldboard plow system for tillage operation on paddies and also survey on efficacy of decision support software application on amount of energy use. for this purpose, decision support software was developed by visual basic 6.0. for survey in amount of efficacy of applying the decision support system on paddies tillag...

Journal: :Journal of agromedicine 2009
David I Douphrate John C Rosecrance Stephen J Reynolds Lorann Stallones David P Gilkey

Previous studies have reported that tractors are responsible for high proportions of fatal and nonfatal agricultural injuries. However, many common and preventable risk factors, conditions, and associated costs related to tractor-related injuries have not been investigated. This case-based study used workers' compensation data to investigate tractor-related injuries. The objectives of this stud...

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