نتایج جستجو برای: field data

تعداد نتایج: 3032156  

2015
Amanda Reilly

Ideally, data collected during a clinical trial would be complete, with subjects not missing any visits or dropping out. However, this is never the case in reality. In fact, missing data is a common and serious issue for clinical trials as it can limit the conclusions drawn or camouflage safety issues with the treatment. The focus of this paper is to describe various techniques used to handle m...

2011
Tom Butler

This paper addresses the need for a comprehensive, practice-oriented Green IS framework. The study conducted a systematic integrative review of research and practitioner literatures in concert with a cross-sectional field study in order to achieve its objective of building such a framework. This research began in September 2009 and ended in September 2010; thus, the paper incorporates up-todate...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده منابع طبیعی 1393

مدل سازی پیش بینی پراکنش گونه های گیاهی بر اساس ارتباط بین داده های حضور یک گونه و متغیرهای محیطی تعریف می شود. امروزه در عرصه اکولوژی گیاهی، تهیه نقشه های پیش بینی پراکنش گونه ای یا تیپ های گیاهی با توسعه روش های آماری و سیستم های اطلاعات جغرافیایی، مورد توجه ویژه قرار گرفته است. به منظور مدل سازی رویشگاه بالقوه ریواس (rheum ribes l.) در استان اصفهان از دو روش مدل سازی حداکثر آنتروپی و ژنتیک ا...

2005
Jean-Pierre Chanet Daniel Boffety Géraldine André Thierry Humbert Philippe Rameau Abdelaziz Amamra Gil De Sousa Emmanuel Piron Kun Mean Hou Frédéric Vigier

Like in many other domains, the agriculture does not stop undergoing changes and getting modernized. Now, modern agriculture needs more and more data: for the traceability, for the farm management, for the inventory of the practices... Rather logically and rather quickly, the Data Acquisition was associated to the GPS localization system. But now, the integration of the Wireless Technologies in...

2005
Ron B. Yeh Scott Klemmer

In this paper, we describe our progress toward building a system for field biologists to collect, organize, and share their information. We describe interactive prototypes that support a concept we call DATA HERITAGE, and how this will help biologists in the field and the lab. With data heritage, the system tracks the transformation and transportation of data between software, devices, and user...

2005
Hongbin Wang Srdjan Nešić

An integrated multiphase flow and corrosion prediction package was tested by comparing it’s performance with data obtained from the field. The comparisons indicated a satisfactory performance, even for the situations where incomplete information was available about the field cases. The results have shown that the effect of traces of H2S on CO2 corrosion needs to be given particular care when ma...

2012
Nathan J. Steiger Gregory J. Hakim Eric J. Steig David S. Battisti Gerard H. Roe

3 We examine the efficacy of a novel ensemble data assimilation (DA) technique in climate field 4 reconstructions (CFR) of surface temperature. We perform several pseudoproxy experiments 5 with both general circulation model (GCM) and 20th Century Reanalysis (20CR) data by 6 reconstructing surface temperature fields from a sparse network of noisy pseudoproxies. We 7 compare the DA approach to a...

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