Results 271 to 280 of about 1,280,051 (301)
Some of the next articles are maybe not open access.
CHARACTERIZATION OF HYDRAULIC NOZZLES FOR DROPLET SIZE AND SPRAY COVERAGE
Atomization and Sprays, 2012Spray coverage specifications for commercially available nozzles could help applicators determine the optimal nozzles for effective control of insects, diseases, and weeds. Spray coverage and deposit density from seven types of nozzles at three different flow rates (0.76, 1.14, and 2.27 L min−1) and two target positions (0.50 and 0.70 m below the ...
H. Guler +3 more
semanticscholar +3 more sources
A Fluorescent Pigment to Measure Spray Coverage
Journal of Economic Entomology, 1970Spray coverage was determined by measuring emission of visible light from 5/8-inch-diameter areas of fluorescent pigment-sprayed leaves when they were exposed to ultraviolet light in a Turner Huorometer. Plum trees and grapevines were sprayed with air-carrier sprayers traveling at constant speed, air volume, and air velocity.
E. Stafford, J. B. Byass, N. Akesson
semanticscholar +2 more sources
Spray Coverage Analysis Using a Hand-held Scanner
Transactions of the ASAE, 1993Hand-held optical scanners provide a low-cost, portable means of digitizing spray-deposit patterns on water-sensitive and Kromekote spot cards. Software was developed to convert the image data to spot counts, sizes, and coverage information. Measurement errors due to spot size, contrast, and method of selecting intensity threshold were evaluated.
E. Franz
semanticscholar +2 more sources
Spraying Coverage Path Planning for Agriculture Unmanned Aerial Vehicles
2021 26th International Conference on Automation and Computing (ICAC), 2021Aiming at improving the efficiency of pesticide application from crop spraying unmanned aerial vehicles (UAVs), this paper investigates problems in spray distribution modelling and coverage path planning (CPP). To capture the pattern of spray, the distribution model is constructed by making use of experimental data and the model fitting method.
Yaohua Guo, Cunjia Liu, Matthew Coombes
openaire +1 more source
Does Spray Coverage Influence Fungicide Efficacy Against Dollar Spot
Applied Turfgrass Science, 2007Chlorothalonil and myclobutanil were applied separately to creeping bentgrass using two sets of nozzles: two low‐drift nozzles that provided incomplete coverage [Teejet Turbo Turfjet nozzle (1/4TTJ04‐VS) and the Raindrop RA‐4 nozzle (35654‐2)], and two nozzles that provided nearly complete coverage [XR Teejet flat fan nozzle (XR11004‐VS) and the Teejet
P. Vincelli, E. Dixon
semanticscholar +2 more sources
Mechanical Factors Affecting Aerial Spray Coverage of Soybeans
Transactions of the ASAE, 1983ABSTRACT STUDIES were carried out to determine the effects of several factors in achieving maximum aerial spray coverage on soybeans. Test plots were aerially sprayed with benomyl and a fluorescent pigment. The measured fluorescent emission from sprayed leaf samples identified spray application rate and spray nozzle orientation as having the greatest ...
J. Carlton +3 more
semanticscholar +2 more sources
Pest Management Science, 2019
BACKGROUND Air blast sprayers are not optimized for spraying the short statured trees in modern apple orchards, resulting in off target drift and variable coverage. A solid set canopy delivery system (SSCDS) consisting of a microsprayer array distributed
Paul C Owen-Smith +6 more
semanticscholar +1 more source
BACKGROUND Air blast sprayers are not optimized for spraying the short statured trees in modern apple orchards, resulting in off target drift and variable coverage. A solid set canopy delivery system (SSCDS) consisting of a microsprayer array distributed
Paul C Owen-Smith +6 more
semanticscholar +1 more source
A MOBILE SYSTEM FOR MEASURING SPRAY COVERAGE - BG1
Acta Horticulturae, 2001A computerized Spraying Coverage Analysis system has been developed to assist researchers, instructors and farmers to measure the coverage efficiency of pesticide application machines and systems. The system is compact and mobile and intended to work in the field, connected electrically to a tractor, jeep or other agricultural vehicles, or, optionally,
G. Manor, V. Shapiro
openaire +1 more source
Sprayed Keratinocytes Suspensions Accelerates Epidermal Coverage in a Porcine Microwound Model
Journal of Burn Care & Rehabilitation, 2000Keratinocyte suspensions can potentially treat a variety of epidermal defects, but the mechanism of action has not been fully determined. We developed a porcine model to study the effect of sprayed cell suspensions delivered on small wounds within a meshed autograft. Paired full-thickness surgically excised wounds were covered with a fully expanded 3:1
F A, Navarro +6 more
openaire +2 more sources
Physico‐chemical studies on agricultural sprays. VII—The visual assessment of spray coverage
Journal of the Science of Food and Agriculture, 1965AbstractThe wetting ability of spray formulations is best assessed by a visual examination of the sprayed surfaces, but such a method is open to criticism in terms of observer bias and inaccuracy. By use of a panel of observers, the method has been examined to determine the magnitude of such errors and to find means of minimising them.Inexperienced ...
Dorothy I. Conibear, C. G. L. Furmidge
openaire +1 more source