نتایج جستجو برای: harvesters

تعداد نتایج: 1511  

2014
Yee Guan NG Shamsul Bahri Mohd TAMRIN Wai Mun YIK Irwan Syah Mohd YUSOFF Ippei MORI

Production agriculture such as harvesting in oil palm plantation has been frequently associated with MSD and significant loss of productivities. This study tends to evaluate from the viewpoint of health, the association between self-reported prevalence of musculoskeletal disorders and productivities; the impact of musculoskeletal disorders on productivity. A cross-sectional study was conducted ...

ژورنال: افق دانش 2022

Aims Musculoskeletal disorders (MSDs) are common in farmers due to the high workload in agriculture. Because several factors, such as physical, personal, and psychological factors in saffron harvesters can influence persons’ physical conditions and expose them to the risk of MSDs, the present study aimed to investigate muscle fatigue and determine the prevalence of MSDs and related factors amon...

Journal: :Resources and Technology 2005

Journal: :تحقیقات مهندسی کشاورزی 0
محمود صفری عضو هیات علمی موسسه تحقیقات فنی و مهندسی کشاورزی محمدرضا علیزاده استادیار موسسه تحقیقات برنج گیلان کریم گرامی محقق موسسه تحقیقات فنی و مهندسی کشاورزی

two types of paddy combine harvester (head-feed and whole-crop) are commonly available in different widths in developed countries. the use of combine harvesters can greatly decrease labor costs and efficiency. combine harvesters have been introduced in several east asian countries (china, japan, south korea) to decrease costs, but their technical and economic performance has not yet been studie...

2013
Allain Barnett

Fishing communities and fisheries governance systems are dynamically engaged in a process of social, ecological, and economic change as they respond to double exposure from globalization and climate change (Leichenko and OBrien, 2008). In this study of the multi-species fishery of Barrington, Nova Scotia, I examine how fish harvesters have responded to warming water temperatures and declining w...

ژورنال: سلامت کار ایران 2015

Background and aims: High levels of noise that most operators of agricultural machinery are exposed to for a long time contribute to cause chronic fatigue and irreversible hearing loss. For this reason, occupational health and safety issues related to such machinary should be considered as a key criterion in the design of agricultural machinery and as a critical factor in the acceptance and sal...

2011
C. Cepnik

This paper introduces and compares different benchmark parameters for the performance of electromagnetic energy harvesters, including the bottom-up (power according to the harvester model) as well as the top-down view (maximum power that can be generated within a volume) and considering the dependency and scaling of geometrical and physical parameters, such as the mechanical damping. The compar...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2013
Einar Halvorsen

Mechanically nonlinear energy harvesters driven by broadband vibrations modeled as white noise are investigated. We derive an upper bound on output power versus load resistance and show that, subject to mild restrictions that we make precise, the upper-bound performance can be obtained by a linear harvester with appropriate stiffness. Despite this, nonlinear harvesters can have implementation-r...

2013
Stephan Scheuren Joachim Hertzberg Stefan Stiene Ronny Hartanto

In agricultural harvesting processes, the infield logistics of transporting the crop from the harvesters' tanks to a street transporter at the field border with an unloading vehicle is challenging. The harvesters have to be unloaded while driving and in time to prevent the loss of expensive process time. The path planning for the unloading vehicle has to consider the unharvested area as a dynam...

2018
Paul Cahill Budhaditya Hazra Raid Karoumi Alan Mathewson Vikram Pakrashi

The data presented in this article is in relation to the research article "Vibration energy harvesting based monitoring of an operational bridge undergoing forced vibration and train passage" Cahill et al. (2018) [1]. The article provides data on the full-scale bridge testing using piezoelectric vibration energy harvesters on Pershagen Bridge, Sweden. The bridge is actively excited via a swept ...

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