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...

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...

Borage herbs, wild herbs and is one year with significant economic value are highly regarded local market Due to the high economic value of borage any study to improve the quality of harvest and increase product seems necessary, Two Rahim Abad (GILAN) district in the province Eshkourat the highest level of production as the location of choice, and studies of the factors in determining the best ...

Borage herbs, wild herbs and is one year with significant economic value are highly regarded local market Due to the high economic value of borage any study to improve the quality of harvest and increase product seems necessary, Two Rahim Abad (GILAN) district in the province Eshkourat the highest level of production as the location of choice, and studies of the factors in determining the best ...

Ground settlement is often the most serious concern when tunneling under an old city with numerous historic monuments. A successful engineering design under these conditions would require getting the most out of the ground strength parameters and avoiding any weakening maneuver throughout the operation. Knowing that surface settlement is highly affected by tunneling parameters in EPB shield tun...

Novel mechanized silica nanoparticles incorporating a peptide-based molecular shuttle as a photo-responsive interlocked gatekeeper of nanocontainers are described including the uptake and delivery studies of a model cargo.

The self-complexation of mono-benzimidazole functionalized β-cyclodextrins was investigated. The unique molecular structure employed as supramolecular nanovalves were installed on the external surface of mesoporous silica to assemble mechanized silica nanoparticles, which showed pH-triggered release property.