نتایج جستجو برای: irrigation methods

تعداد نتایج: 1909238  

2008
P. Javadi Kia A. Tabatabaee Far M. Omid R. Alimardani L. Naderloo

The idea of irrigation is not new, irrigation stems as far back as the Egyptians and probably further in unrecorded history. Even the idea of automated irrigation is not new, mankind has figured out how to irrigate large areas of foliage through the use of automated and drop irrigation systems. Efficient, automated irrigation systems, which can irrigate plants to a desired level and supply thos...

2017
Priyatam Karade Rutuja Chopade Suvarna Patil Upendra Hoshing Madhukar Rao Neha Rane Aditi Chopade Anish Kulkarni

Introduction This in vitro study was designed to evaluate and compare different endodontic irrigation and activation systems for removal of the intracanal smear layer. Methods and Materials Forty recently extracted, non-carious human intact single rooted premolars were selected and divided into five groups (n=10) according to the root canal irrigation systems; syringe and needle irrigation (C...

Journal: :Journal of endodontics 2010
Tina Rödig Meral Bozkurt Frank Konietschke Michael Hülsmann

INTRODUCTION The aim of this study was to compare the efficiency of a sonic device (Vibringe), syringe irrigation, and passive ultrasonic irrigation in the removal of debris from simulated root canal irregularities. METHODS Root canals with 2 standardized grooves in the apical and coronal parts were filled with dentin debris. Three different irrigation procedures were performed with NaOCl (1%...

Journal: :آب و خاک 0
امیر اعظمی کیومرث زرافشانی حسین دهقانی سانیج علی گرجی

abstract one of the technologies that deal with efficient use of water is sprinkler irrigation systems. if farmers are to continue the use of sprinkler systems which may be crucial in agricultural development, educational programs should be tailored to their needs. therefore, the main purpose of this study was to analyze educational needs of farmers equipped with sprinkler irrigation. furthermo...

Journal: :The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques 2007
Mustafa Gurelik Adem Aslan Bilge Gurelik Unal Ozum Ozen Karadag H Zafer Kars

OBJECTIVE Burr-hole irrigation and burr-hole drainage without irrigation are the most popular methods for treatment of chronic subdural haematoma. It is not well known if irrigation is necessary or which method has a higher recurrence rate. We compared the recurrence rates of those two methods. MATERIALS AND METHODS Forty-two patients were treated by burr-hole irrigation (irrigation group), w...

2001
J.-E. BERGEZ

Irrigation scheduling is an important decision problem in agriculture. The purpose of the study presented in this paper is to compare dynamic programming (DP) and reinforcement learning (RL) methods for identifying optimal starting irrigation strategies, when a limited amount of water is available for irrigation. Both of the optimization methods use the MODERATO simulator, which includes a grow...

Journal: :African journal of reproductive health 2011
Baafuor Opoku Fauster Kwaununu

The use of emergency contraceptives (EC) to prevent unwanted pregnancies when effective contraception has not been used is universally acknowledged. A study looked at the knowledge and practices of emergency contraception in 476 women in the reproductive age in Ghana. Knowledge and usage of EC applied to 57% and 41% of participants, respectively. Knowledge was independent of age (p = 0.26), mar...

2016
S. Alan Walters Ajay K. Jha Mohammad Valipour

Water management and utilization is an ongoing problem in developing countries with semi-arid to arid climates such as Afghanistan. The lack of effective irrigation systems are oftentimes the most limiting factor for maximizing agricultural productivity in these countries. In Afghanistan, the most widely used irrigation methods are basin/border for cereal crops and furrow for vegetables and gra...

Journal: :Journal of Agricultural Meteorology 1953

2017
Ningke Hu Xin Li Lei Luo Liwei Zhang

Historical records and archaeological discoveries have shown that prosperous agricultural activities developed in the ancient Juyan Oasis of northwestern China, an important oasis that once flourished on the ancient Silk Road. However, how the irrigation canals were distributed in historical time was unknown. Here, we identified and mapped the spatial distribution of ancient abandoned irrigatio...

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