Results 41 to 50 of about 123,592 (340)

Modeling and Prediction of the Uniformity of Spray Liquid Coverage from Flat Fan Spray Nozzles [PDF]

Sustainability, 2019
The effectiveness and quality of agricultural spraying largely depends on the technical efficiency of the nozzles installed in agricultural sprayers. The uniform spraying of plants results in a decrease in the amount of pesticides used in agricultural production and affects environmental safety.
Paweł A. Kluza, Izabela Kuna-Broniowska, Stanisław Parafiniuk   +2 more
openaire   +1 more source

Improving spray distribution and coverage on avocado trees in low volume concentrate sprays

New Zealand Plant Protection, 2008
Avocado trees in New Zealand orchards are planted on squares spaced 714 m apart with tree heights of up to 14 m Large trees present considerable difficulties with regards to pesticide application A series of studies was undertaken on 68 m high trees to optimise formulation prescriptions for airblast application of copper sprays Treatments included ...
R.E. Gaskin, D.W.L. Manktelow, H. Pak
openaire   +2 more sources

EVALUATION OF THE DJI AGRAS T40 UAV FOR APPLICATION OF HERBICIDES IN SOYBEAN

Weed Technology
The use of unmanned aerial vehicles (UAVs) shows promise as a potential new method of herbicide application; however, relatively few studies have been conducted to determine how UAV application parameters influence spray deposition and weed control ...
Trace Thompson, Douglas J. Spaunhorst, Kevin W. Bradley   +2 more
doaj   +1 more source

The Influence of Droplet Distribution Coverage and Additives on the Heat Transfer Characteristics of Spray Cooling under the Influence of Different Parameters

Applied Sciences, 2022
For the objective of enhancing the heat transfer ability of spray cooling, a single-nozzle open-loop spray cooling experiment platform was established with a data measuring system.
Qian Niu, Yu Wang, Na Kang
doaj   +1 more source

"My Children and I Will no Longer Suffer from Malaria": A Qualitative Study of the Acceptance and Rejection of Indoor Residual Spraying to Prevent Malaria in Tanzania. [PDF]

, 2012
The objective of this study was to identify attitudes and misconceptions related to acceptance or refusal of indoor residual spraying (IRS) in Tanzania for both the general population and among certain groups (e.g., farmers, fishermen, community leaders,
AD Rodriguez, Africa Fighting Malaria, C Montgomery, C Stephens, Datius Rweyemamu, DJ Pletsch, G Gramiccia, H Rafatjah, Hannah Koenker, J Govere, Jacob Macha, K Newberry, KJ Njunwa, M Service, M Tanner, Michelle R Kaufman, National Bureau of Statistics Tanzania, ICF Macro, P Winch, President’s Malaria Initiative, R Allan, R Allan, R Allan, RI Chima, RM Packard, ST Barnes, T Hongvivatana   +25 more
core   +3 more sources

Analysis of the Factors Affecting the Deposition Coverage of Air-Assisted Electrostatic Spray on Tomato Leaves

Agronomy
In order to investigate the effects of various factors (charging voltage, spray distance and spray pattern) on the deposition coverage of tomato leaves, the Box–Behnken surface response methodology was used to design an outdoor air-assisted electrostatic
Jili Guo, Xiaoya Dong, Baijing Qiu
doaj   +1 more source

Comparative Field Evaluation of Combinations of Long-Lasting Insecticide Treated Nets and Indoor Residual Spraying, Relative to Either Method Alone, for Malaria Prevention in an Area where the main Vector is Anopheles Arabiensis. [PDF]

, 2013
Long-lasting insecticidal nets (LLINs) and indoor residual spraying (IRS) are commonly used together in the same households to improve malaria control despite inconsistent evidence on whether such combinations actually offer better protection than nets ...
A Bhattarai, A Cohuet, A Ogbonna, A Smith, Alex J Ntamatungiro, AM Eijk, AM Noor, AN Clements, C Drakeley, C Ngufor, CF Curtis, D Chandramohan, Deo R Kavishe, Edgar Mbeyela, Elizabeth Turner, FO Okumu, FO Okumu, FO Okumu, FO Okumu, FO Okumu, FO Okumu, Fredros O Okumu, G Fegan, G MacDonald, GF Killeen, Godfrey Lingamba, H Ranson, H Reyburn, HM Ferguson, I Kleinschmidt, J Beier, J Beier, J Kitau, JA Scott, Jason Moore, JM Mwangangi, JP Grieco, JT Griffin, KI Barnes, KI Barnes, L Yakob, Lena M Lorenz, LF Tseng, LL Koekemoer, M Akogbeto, M Over, MI Msellem, Michael G Kenward, MJ Hamel, ML Mabaso, MN Bayoh, MOH-Zambia, N Chitnis, NJ Govella, PM Nyarango, R Carter, R Development Core Team, RA Khatib, RJ Kent, RL Kouznetsov, S Abdulla, Sarah J Moore, SB Ogoma, SE Clarke, The malERA Consultative Group on Vector Control, TL Russell, TL Russell, V Corbel, W Takken, WA Hawley, WA Hawley, WHO, WHO, WHO, WHO, WHO, WHO, YA Derua   +77 more
core   +3 more sources

Effect of Application Techniques on Spray Quality Optimization in Sweet Pepper Cultivation in Protected Environments

AgriEngineering
Air assistance and electrical charge transfer to droplets can optimize pesticide applications and reduce losses in sweet pepper cultivation. The objective of this study was to evaluate the effects of spray rate and pneumatic spraying with and without an ...
Gustavo Dario, Luciano Del Bem Junior, Flávio Nunes da Silva, Matheus Mereb Negrisoli, Evandro Pereira Prado, Fagner Angelo da Silva e Oliveira, Maria Márcia Pereira Sartori, José Francisco Velásquez Sierra, Carlos Gilberto Raetano   +8 more
doaj   +1 more source

Deposition of spray droplets by four spray nozzles and two working pressures

Revista Agrogeoambiental, 2023
The deposition of spray droplets on the target can be influenced by the type spray nozzle used, as well as the employed working pressure. Thus, with the commercial availability of new spray nozzles, performance studies with the new models become ...
Jackeline Matos do Nascimento, João Victor Martins Hidalgo Cerzosimo, Raphael Biazotti Compagnoni, Antonio Luiz Viegas Neto, Fernando Mateus Paniagua Mendieta   +4 more
doaj   +1 more source

Spray controller for horizontal boom movements compensation [PDF]

, 2002
peer reviewedLongitudinal spray distribution is mainly affected by the horizontal speed variations of the nozzles. Manufacturers classically try to reduce unwanted nozzles movements using horizontal boom suspension but these methods show performance and
Destain, Marie-France, El Bahir, Lhoussain, Hanus, Raymond, Kinnaert,, Lebeau, Frédéric   +4 more
core