نتایج جستجو برای: farm vehicle

تعداد نتایج: 151856  

2000
Erik Mathijs

Farm restructuring during transition is often defined as a combination of the change of the internal organization of a farm and the change in farm size, following the liberalization of the economy and the privatization of property rights. Following this definition, farm restructuring involves downsizing farm units and reorganizing management-ownership-workforce relationships. This paper tries t...

2013
Gracious M. Diiro

This study analyzed the impact of off-farm earnings on the intensity of adoption of improved maize varieties and the productivity of maize farming in Uganda in the years 2005/06 and 2009/10. Summary statistics show significantly higher adoption intensity and expenditure on purchased inputs among households with off-farm income relative to their counterparts without off-farm income. Households w...

Journal: :Journal of agromedicine 2007
Mark Greskevitch Greg Kullman Ki Moon Bang Jacek M Mazurek

To quantify the respiratory disease burden among agricultural workers, we examined the 1988-1998 National Center for Health Statistics (NCHS) "Multiple Cause of Death Data" and the 1988-1994 Third National Health and Nutrition Examination Survey data (NHANES III). Proportionate mortality ratios (PMRs) were determined for 11 respiratory conditions among 6 agricultural groups: crop farm workers, ...

Journal: :Rural sociology 2013
Prem Bhandari Dirgha Ghimire

Using longitudinal panel data from the Western Chitwan Valley of Nepal, this study investigates the impact of the use of modern farm technologies on fertility transition-specifically, the number of births in a farm household. Previous explanations for the slow pace of fertility transition in rural agricultural settings often argued that the demand for farm labor is the primary driver of high fe...

2001
Ayal Kimhi

This article studies the relationship between the off-farm participation behavior of farm operators and their spouses and the demographic composition of the household. I focus on farm families without parents, siblings or partners, and examine the effects of the existence of elderly children of the farm couple. I find that both the father and the mother tend to reduce their participation in off...

2017
Jacob D. Grunnet Mohsen Soltani Torben Knudsen Martin Kragelund Thomas Bak

This paper presents the wind farm simulation model developed in the EU-FP7 project, AEOLUS. The idea is to provide a publicly available simulation package for researchers developing farm level control solutions. With the software it is possible to auto generate a wind farm simulation model in Matlab/Simulink based on turbine parameters and farm geometry. The input to the farm simulator is power...

Journal: :مجله علوم اعصاب شفای خاتم 0
mohammadesmaiel alipour a. shefa neuroscience research center, khatam alanbia hospital, tehran, iran. b. school of advance technologies in medicine. tehran university of medical sciences, tehran, iran.

post-traumatic stress disorder (ptsd) is a chronic and progressive disorder that occurs after some traumas and accident. injuries and harm to health caused by motor vehicle accidents (mvas) have become an issue of global concern, as mvas are expected to be the third largest contributor to the worldwide burden of disease by the year 2020. chronic ptsd is a common consequence of mva and that it m...

2014
Ik Hoon Jang Sung Hee Park Hyun Kim Young Chan Choe

Korean pig farms face challenges from free trade environment. Many farms have adopted Information System to improve the productivity on the farm. This study applies statistical analysis to verify the productivity gain and its determinants by using information system on the pig farm. Using the farm level weekly data from the PigPlan from 2006 to 2012, we find productivity gain on the farm increa...

2014
Jinkyoo Park

In a wind farm, the wakes formed by upstream wind turbines decrease the power outputs of downstream wind turbines by reducing wind speed. This wake interference significantly lowers the power production of a wind farm, especially that of a large-scale wind farm. In this paper, we express wind farm power as a differentiable function of location variables. We then apply a sequential convex progra...

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