نتایج جستجو برای: rate spraying

تعداد نتایج: 966731  

2011
S. T. Forczek O. Benada O. Kofroňová K. Sigler M. Matucha

Winter deicing and traffic spreads salt to road-adjacent Norway spruce trees in the form of spraying and salt slops. Our use of Na36Cl revealed roots as the main pathway of salt uptake. One-shot application of a concentrated Na36Cl solution to spruce saplings by both irrigation and spraying causes macroscopic damage to the needles and affects the needle phyllosphere. Irrigation affects the tree...

Journal: :Journal of physics 2021

Thermal barrier coatings were prepared on magnesium alloy substrate by plasma spraying, and thermal shock test, test arc wind tunnel carried out. The failure mode, microstructure phase transition of coating after analyzed SEM XRD change temperature rise rate during is means measurement. analysis results show that the structure sprayed surface consistent before shock, no occurs spraying shock. m...

Journal: :Journal of the Japan Welding Society 1993

2016
Y. Zhao P. Grant B. Cantor

TiISiC, MMC monotapes have been successfully fabricated by vacuum plasma spraying. The as-sprayed MMC monotapes have a uniform fibre distribution, dense matrix and no fibre-matrix interfacial reaction. The effects of processing parameters such as H, flow rate, plasma current, chamber pressure and spray distance on the monotape temperature, porosity and fibre infiltration have been evaluated qua...

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 ...

ژورنال: سلامت و محیط زیست 2018

Background and Objective: The sewer system is one of the important and suitable areas for the growth and reproduction of American Cockroach Periplaneta americana (L.) in Bushehr. This project was implemented for considering the high cost of spraying and environmental pollution. Materials and Methods: In this study some commonly insecticides were tested in different doses to evaluate the effect...

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