An agronomic crop growth model—the Decision Support System for Agro-Technology Transfer—and a constant relative risk aversion utility function are used to examine corn irrigation strategies in Mitchell County, Georgia. Precipitation contracts are designed to help farmers manage risk. Three conclusions originate from the findings. First, the optimal irrigation strategy can greatly increase produ...

BACKGROUND AND OBJECTIVES Limited information exists regarding the efficacy of laser activated irrigation (LAI) on removal of root canal debris. This study compares the efficacy of LAI for removal of debris in root canals as compared to conventional irrigation (CI) and passive ultrasonic irrigation (PUI). MATERIALS AND METHODS A splitted tooth model was constructed with straight roots prepare...

Surface irrigation is the dominant method of on-farm irrigation in Egypt as well as world wide. Furrow watering is considered as one of the main types of surface irrigation. Most of the cultivated crops are grown under such type of watering. The principal advantage of furrow irrigation is the less irrigated area comparing with that under basin irrigation which equaled total cultivated acreage. ...

FLOW-AID has the objective to develop and test an irrigation management system that can be used under deficit, when water availability and quality are limited. It intends to use innovative, but simple and affordable concepts usable for a variety of irrigation set-ups and constraints. Amongst others, it focuses on development of low-power wireless sensor networks for soil water monitoring. Six s...

The Response of Grain and Oil Production Water Productivity Sesame to Limited Irrigation Under the Conditions Vermicompost Application

INTRODUCTION The Apollo system (Penumbra Inc, Alameda, California, USA) is a low profile irrigation-aspiration system designed for the evacuation of intracranial hemorrhage. OBJECTIVE To demonstrate the feasibility of using Apollo in combination with cone beam CT guidance. METHODS Parenchymal (n=1) and mixed parenchymal-intraventricular hematomas (n=1) were created in cadaver heads using a ...

We consider a simple crop irrigation model and study the optimal control which consists of maximizing the biomass production at harvesting time. A specificity this work is to impose quota on water used for irrigation, in context limited resources. The written as 2d non-autonomous dynamical system with state constraint, non-smooth right member given by threshold-based soil stress functions. ...