Indoor residual spraying—spraying insecticide inside houses to kill mosquitoes—is an important method for controlling malaria vectors in sub-Saharan Africa. We propose a mathematical model for both regular and non-fixed spraying, using impulsive differential equations. First, we determine the stability properties of the nonimpulsive system. Next, we derive minimal effective spraying intervals a...

The precise identification of corn and weeds plays an important role in spraying. This paper proposed a lightweight model based on the improved yolov5s built precision spraying robot. Firstly, we used data augmentation method category balance agronomic characteristics to solve imbalance problem. Then, compared with yolov5s, yolov5l, yolov5m, yolov5x, found that has both real-time accuracy is ea...

Abstract In article is given the theoretical aspects of solving existing technical and technological problems in improving efficiency working fluids, device a spray-caviator curved way, stream formed around spiral deflection, characteristic continuous flow, process leakage surrounded by potential current primary drop. Analytical expressions were obtained as result mathematical analysis elementa...

The experimental study is done for technological parameters of high-melting metal arc spraying to study the influence of spraying current, spraying voltage and wire feed voltage on spraying arc and the influence of spraying current on coating temperature and analyze theoretically the distribution rules of spray gun jet speed field and temperature field and their influencing factors. The results...

Tree structure probing is a significant basic part of target precision spraying. Orchard tree structure digital test system, which consists of three components, is designed by using the ultrasonic sensors. The conveying platform is for fixing and precisely moving the sensor which is used for probing the tree profile. The lower computer can process the test data and communicate with upper comput...

Pesticides are essential for removing plant pests and sustaining good yields on agricultural land. Excessive use has detrimental repercussions, such as the depletion of soil fertility proliferation immune insect species, Nilaparvata lunges Nezara viridula. Unmanned aerial vehicle (UAV) variable-rate spraying offers a precise adaptable alternative strategy overcoming these challenges. This study...

Highlights A comprehensive review of the current Unmanned Aerial Vehicle Sprayer in precision agriculture applications. Comparison manned and unmanned aerial sprayers agriculture. Latest developments commercialized UAV available on market. Abstract. Vehicles (UAVs) are becoming more broadly used for improving agricultural spraying However, compared with nearly 100 years data accumulated applica...