BACKGROUND Spray volume can influence the amount of free water on the leaf surface and subsequently the ability of entomopathogenic nematodes (EPNs) to move. In this study, an investigation was made of the effect of spray volume (548, 730 and 1095 L ha(-1) ) on the deposition, viability and infectivity of EPNs against Galleria mellonella on savoy cabbage, cauliflower and leek. RESULTS Increas...

A numerical and experimental investigation was conducted to analyze dropwise evaporative cooling of heated surfaces with various wettability characteristics. The surface wettability was tuned by nanostructure modifications. Spray-cooling experiments on these surfaces show that surfaces with better wettability have better heat transfer rate and higher critical heat flux (CHF). Single droplet imp...

The automation of painting process in shipbuilding is arisen as vital issue because of the insufficiency of painting workers and frequent quality claims. The increase of the painting quality is the main achievement made by the automation of the painting process. In order to maintain the good painting quality, even though the spray depth, angle and velocity are considered principally, measuring ...

A complex interaction of controllable and uncontrollable factors is involved in aerial application of crop production and protection materials. Although it is difficult to completely characterize spray deposition and drift, these important factors can be estimated with appropriate sampling protocol and analysis. Application height is an important variable influencing off-target spray drift, but...

The objective of the research was to understand and improve the unusual physical and atomization properties of the complexes/adhesives derived from the tapioca starch by addition of borate and urea. The characterization of physical properties of the synthesized adhesives was carried out by determining the effect of temperature, shear rate, and mass concentration of thickener/stabilizer on the c...

Tanacetum parthenium (feverfew) is an herb that is commercialized worldwide as a therapeutic treatment for migraine. Its pharmacological effect is mainly due to the presence of the sesquiterpene lactone parthenolide as well as of flavonoids. So far, there are no studies on standardization of pre-formulations or phytomedicines containing this herb. The present study aimed at developing a pre-for...

Spray characteristics have an important role in improving the quality of combustion compression engines. This study analyzes effect ambient temperature on spray including tip penetration, angle and velocity spray. The research method uses experimental with variations 60 o C, 80 100 C controlled using a thermocouple pressure 0.3 MPa. composition fuel diesel (diesel 100%), B30 (30% biodiesel), B1...

............................................................................................................................... i ACKNOWLEDGEMENTS ....................................................................................................... ii LIST OF FIGURES .................................................................................................................. vi LIST OF T...