نتایج جستجو برای: spray control

تعداد نتایج: 1346701  

2017
Joe D. Luck A. Sharda Santosh Pitla S. A. Shearer J. D. Luck S. K. Pitla J. P. Fulton

The use of precision agriculture technologies such as automatic boom section control allows producers to reduce off-target application when applying herbicides. While automatic boom section control provides benefits, pressure differences across the spray boom resulting from boom section actuation may lead to off-rate application errors. Off-rate errors may also result from spray rate controller...

Journal: :Revista de biologia tropical 2014
John Seng Geovanny Herrera Christopher S Vaughan Michael B McCoy

Cacao (Theobroma cacao) is an important cash crop in tropical climates such as that of Latin America. Over the past several decades, the infection of cultivated cacao by Moniliophthllora roreri, known commonly as "monilia", has significantly hindered cacao production in Latin America. Studies have proposed the use of Trichoderma sp. fungi in biocontrol treatments to prevent and reduce monilia i...

Journal: :CoRR 2016
Signe Moe Jan Tommy Gravdahl Kristin Ytterstad Pettersen

In this paper, a method is presented for lowering the energy consumption and/or increasing the speed of a standard manipulator spray painting a surface. The approach is based on the observation that a small angle between the spray direction and the surface normal does not affect the quality of the paint job. Recent results in set-based kinematic control are utilized to develop a switched contro...

Journal: :The Indian journal of medical research 2009
U Sreehari P K Mittal R K Razdan A P Dash M A Ansari

BACKGROUND & OBJECTIVE A longitudinal study was carried out to assess the impact of indoor residual spray with Vectron 20 WP (etofenprox) against Anopheles culicifacies and on malaria transmission in a selected village of Dadri primary health centre (PHC), District Gautam Budh Nagar, Uttar Pradesh, India. METHODS Two villages, namely Patadi and Anandpur in District Gautam Budh Nagar, Uttar Pr...

2013
NILESH B. KULKARNI PRAVIN S. WAKTE JITENDRA B. NAIK

Objectives: The aim of the present study was to evaluate effects of various polymers on the release of a water soluble drug by using spray drying technique of microencapsulation. Methods: Spray drying is a single step technique, less time is required and loading efficiency is not affected by the nature of the drug whether hydrophilic or hydrophobic. Eudragit RS 30D, RL 30D and Ethylcellulose (S...

Journal: :Gaoxiong yi xue ke xue za zhi = The Kaohsiung journal of medical sciences 1994
H H Yap N L Chong A E Foo C Y Lee

Dengue Fever (DF) and Dengue Haemorrhagic Fever (DHF) have been the most common urban diseases in Southeast Asia since the 1950s. More recently, the diseases have spread to Central and South America and are now considered as worldwide diseases. Both Aedes aegypti and Aedes albopictus are involved in the transmission of DF/DHF in Southeast Asian region. The paper discusses the present status and...

2016
Yichen Sun Mark Meacham

We report characterization of spray-based nanoporous particle synthesis for use in the cathode of lithiumion batteries. Ultrasonic Microarray Spray Tuning (uMIST) was used to create microdroplets of salt solutions and battery material precursors, and the size distributions of produced microdroplets were investigated with a MicroOrifice Uniform Deposit Impactor (MOUDI). Experimental challenges a...

2016
Matias Hultgren

The present work examines the distribution of spray water in the superheating section for steam temperature control in a once-through circulating fluidized bed (OTU-CFB) boiler. Combustion power generation has become challenging due to increasingly fast load change demands. There is also a constant need to improve power plant efficiency, which leads to extreme operating conditions and complicat...

2011
E. O. Egho

The management of major field insect pests of cowpea under calendar and monitored sprays of cypermethrin was studied. The major insect pests studied were the cowpea aphid, Aphis craccivora Koch, legume bud thrips Megalurothrips sjostedti Tryb, legume pod borer, Maruca vitrata Fab. and pod sucking bugs. Influence of insect pest management on yield was also determined. The calendar sprays consist...

2015
Saad Drissi Abdelhadi Aït Houssa Ahmed Bamouh Mohamed Benbella

The objective of this study is to identify an adequate zinc (Zn) foliar spray concentration which corrects Zn deficiency without disrupting other plant mineral contents, enhances plant growth, and thereby corn silage yield when grown on sandy soil. A field experiment was conducted using five Zn foliar spray concentrations (w/v): 0.03%, 0.07%, 0.10%, 0.14% and 0.18%. Zn sulfate (ZnSO4. 7H2O) was...

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