نتایج جستجو برای: difficult irrigation

تعداد نتایج: 287700  

2007
MICHAEL LIPTON

The study on ‘‘pro-poor intervention strategies in irrigated agriculture in Asia’’ by Hussain (2005) shows that, in 26 major and medium-size canal irrigation schemes in Asia, irrigated areas average 20% lower poverty than adjacent rainfed areas; gains are more with pro-poor management of water for farming (PPMWF) and where distribution of farmland or farm water is more equal. These findings, an...

Journal: :Turkish journal of anaesthesiology and reanimation 2015
Tünay Kandemir Serpil Şavlı Süheyla Ünver Erbin Kandemir

OBJECTIVE The aim of this study was to determine the combinations of the Mallampati test and anthropometric measurements with the highest selectivity value. In addition, we aim to identify a possible correlation between head circumference measurement, the presence of malignancy and difficult intubation. METHODS Patients who were scheduled to undergo elective surgery under general anaesthesia,...

2017
Jatuporn Eiamcharoenwit Napon Itthisompaiboon Panita Limpawattana Arunotai Siriussawakul

Background. There have not yet been any studies to validate the intubation difficulty scale (IDS) in obese parturients. Objectives of this study were to determine the performance of the IDS in defining difficult intubation (DI) and to identify the optimal cutoff points of the IDS among obese parturients. Methods. This was a prospective observational study. Parturients with a body mass index ≥ 3...

Journal: :آب و خاک 0
علیرضا غلامی نادر پیرمرادیان

abstract the application of the crop growth models could facilitate irrigation water and fertilizer management due to reduce of field visits and direct measurements. these models are often so complex that it is difficult to understand them and some of those input data are not accessible. in this study, a simple model (vsm) was used to yield prediction of corn under different water and nitrogen ...

2010
Liang Zhang Daoxi Li Xiaoyu An

This paper develops the system of optimal allocation of water resources in irrigation district and irrigation decision support which integrates technologies of decision support, information management, information search and so on. It has the multi-function of water production function calculation, crop water requirement calculation, water resources optimal allocation and realtime amending the ...

Journal: :Journal of endodontics 2014
Aysun Kara Tuncer Bayram Unal

INTRODUCTION The aim of this study was to compare the effect of the EndoVac irrigation system (SybronEndo, Orange, CA) and conventional endodontic needle irrigation on sealer penetration into dentinal tubules. METHODS Forty single-rooted, recently extracted human maxillary central incisors were randomly divided into 2 groups according to the irrigation technique used: conventional endodontic ...

Journal: :Hand (New York, N.Y.) 2009
Bas B. G. M. Franssen Arnold H. Schuurman Pascal C. R. Brouha Moshe Kon

Cooling during drilling Kirschner wires is not always effective in preventing thermal related damage. In this study, we used a human in vitro model and compared temperature elevation, insertion time, and extraction force between three Kirschner wire insertion methods-drilling with and without irrigation and pneumatic hammering. Forty five Kirschner wires were inserted into 15 fresh human cadave...

2015
Yu-Chi Liu Lasitha Jayasinghe Heng Pei Ang Nyein Chan Lwin Gary Hin Fai Yam Jodhbir S. Mehta

This study aimed at evaluating the effect of intraoperative corneal pocket irrigation in small incision lenticule extraction (SMILE) and compares it to that in femtosecond laser-assisted in situ keratomileusis (FS-LASIK). Sixteen rabbit eyes underwent a SMILE procedure, with 8 eyes having corneal pocket irrigation, while the other 8 eyes were without irrigation. Another 16 eyes underwent a FS-L...

2010
Maurits Willem Ertsen

Irrigation systems were clearly important in ancient times in supplying crops with water. This requires physical distribution facilities and socio-political arrangements to coordinate between actors. Resulting systems are highly diverse, and are being studied extensively within archeology and history. Whether initiated by a central authority or emerging from small-scale initiatives, irrigation ...

2018
Susan A. O'Shaughnessy Steven R. Evett Paul D. Colaizzi Terry A. Howell S. A. O’Shaughnessy S. R. Evett P. D. Colaizzi T. A. Howell

Automatic irrigation scheduling has been demonstrated using wired sensors and sensor network systems with subsurface drip and moving irrigation systems. However, there are limited studies that report on crop yield and water use efficiency resulting from the use of wireless networks to automatically schedule and control irrigations. In this 2011 study, a multinode wireless sensor network (WSN) s...

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