in recent years, the debate over the environmental sustainability of agricultural productions is widely increased. in this context, environmental impacts of potato production by semi-mechanized method were studied in markazi province of iran. in this research, life cycle assessment approach was used to identify and reduce environmental impacts. the environmental impacts of potato production in ...

There are several forest operations involved in Eucalyptus timber harvesting. This study was carried out during brush-cutting; tree felling, bucking, delimbing, piling and manual extraction operations, with the following objectives: a) analyzing, ergonomically, two systems of brush-cutting: one manual and the other semi-mechanized, using two different machines; b) ergonomically evaluating three...

Due to the increase of production costs in manual harvesting, strategies must be developed in order to overcome these effects, such as the attempts in implementing agricultural machines in harvest activities, whether being totally or partially mechanized. This study brings a qualitative and quantitative comparison on the impacts in work conditions and productivity in Brazilian orchards caused b...

We show empirically using panel data at the plot and farm level and based on a model incorporating supervision costs, risk, credit-market imperfections and scale-economies associated with mechanization that small-scale farming is inefficient in India. Larger farms are more profitable per acre, more mechanized, less constrained in input use after bad shocks, and employ less per-acre labor than s...

New panel data from India are used to examine the relationship between farm size and productivity based on a model incorporating agency costs favoring family workers, scaledependent returns to mechanization arising from the fact that a larger contiguous land area is better-suited for high-capacity machinery, and falling credit costs with owned land. The model provides guidance for imputing the ...

introduction: hematology section provides valuable information for diagnosis and treatment of patients to improve the health of them. in this regard hematology information system led to deliver produced information accurately and timely. present study aimed to analyze the situation of hematology information systems in hospital laboratories. methods: in this descriptive study, 13 hematology info...

environmental optimizing of pest management strategies and improving theirs trends towards minimum environmental risks programs is a matter of considerable concern of food scientists particularly in developing countries. this study evaluates the environmental impacts of pesticides consumption based on environmental impact quotient (eiq) model in different sugar beet (beta vulgaris l.) productio...

This study was aimed at assessing how efficient the small scale fishing units in Lagos State, Nigeria use the monetary inputs: costs of gear repairs, craft repairs, fuel, fishing losses, hired labor, and the residual costs of craft and gear. Between January and December, 113 mechanized and 43 non-mechanized fishing units in 21 purposively chosen coastal villages were surveyed bi-monthly through...

A human operator assembles components using his skill and judgement which is difficult to incorporate in a mechanized device. Though the mechanized system will offer higher speed and reliability, but its inherent inaccuracies will limit the success in assembling. Thus, it is essential that these inaccuracies are determined to establish its ‘Process capability’ , and also provide information for...