نتایج جستجو برای: spraying

تعداد نتایج: 7304  

Journal: :Journal of the Japan Welding Society 1993

2008
S. J. Childs J. W. Hargrove

The hypothetical impact of conventional insecticidal spraying strategies on Tsetse fly is investigated in this work. The investigation is largely one of the effect of temperature on tsetse population dynamics and its reproductive cycle during spraying, given that cooler weather is preferred for the settling of insecticidal droplets. Conventional insecticidal spraying strategies are found to be ...

Journal: :Bulletin of entomological research 1947
J E WEBB

PAGE Introduction 209 Construction of the spraying tower ... ... ... ... ... ... 210 Adjustment of the atomiser ... ... ... ... ... ... ... 211 Spraying procedure ... ... ... ... ... ... ... ... ... 211 Determination of weight of deposit ... ... ... ... ... ... 212 Replication and distribution of deposits ... ... ... ... ... ... 213 Factors governing the weight of deposit ... ... ... ... ... .....

2014
Myoung Hee Kim

The purpose of this study was to examine safety observance when spraying pesticide and pesticide related symptoms among Korean farmers. As a cross-sectional study, a questionnaire survey was conducted in rural communities and an investigation carried out by a structured survey of 135 farmers. The results are as follows: The mean of safety observance when spraying pesticides was 3.05±0.58 (range...

2007
W. T. Hsiao W. H. Liao M. S. Leu C. Y. Su

The image of thermal spray splats is difficult to collect due to its high velocity of droplets. Especial in High Velocity Oxy-Fuel (HVOF) process, the process present higher velocity of flame jet correlated to other thermal spray process. The system presents at this article describes a useful splats catching method to obtaining splats during thermal spray deposited. Capabilities and advantages ...

2018
John C Rek Victor Alegana Emmanuel Arinaitwe Ewan Cameron Moses R Kamya Agaba Katureebe Steve W Lindsay Maxwell Kilama Sarah G Staedke Jim Todd Grant Dorsey Lucy S Tusting

BACKGROUND Rapid population growth in Africa requires an urgent expansion and improvement of housing options. Improving housing presents a promising opportunity for malaria control by reducing indoor exposure to mosquitoes. We measured recent changes in house design in rural Uganda and evaluated their association with malaria in relation to a mass scale-up of control efforts. METHODS This ana...

2011
Collin J. Arens S. Christine Paetzold Jeff Davidson

Mussel growers in Prince Edward Island (PEI), Canada, currently use high-pressure water spraying (~700 psi) to mortally injure or dislodge invasive tunicates from mussel product and gear. An added benefit of this process may be the stimulation of byssal thread production, leading to improved mussel attachment. This study measured byssal thread abundance and thickness in cultured blue mussel Myt...

Journal: :Bulletin of the World Health Organization 1994
S M Kaul R S Sharma K P Dey R N Rai T Verghese

Data on the operational efficacy of DDT indoor residual spraying against Phlebotomus argentipes, the vector of kala-azar in India, are scarce. We therefore undertook a study of the impact on kala-azar and its vector of DDT indoor residual spraying in the Varanasi district of eastern Uttar Pradesh. Preliminary results indicate that after two rounds of DDT spraying in one village no P. argentipes...

Journal: :Cadernos de saude publica 1999
U Teodoro J B Kühl D R Santos E S Santos

Tree felling around a chicken coop and periodic insecticide spraying at the Palmital farm in the county of Terra Boa in southern Brazil impacted the ecology of sand fly species. The most prevalent species (51.6%) before clearing the trees and insecticide spraying was Lutzomyia migonei (França, 1920), and it is now Lutzomyia (Nyssomyia) whitmani (Antunes & Coutinho, 1939) (89.8%). There was a hi...

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