نتایج جستجو برای: ordination 1235

تعداد نتایج: 4177  

2013
Michael Rapp Peter Schoenknecht Ryan M. Niemiec

opics covered i lnc du e: Order online at www.hogrefe.com or call toll-free (800) 228-3749 (US only) Hogrefe Publishing 30 Amberwood Parkway · Ashland, OH 44805 · USA Tel: (800) 228-3749 · Fax: (419) 281-6883 E-Mail: [email protected] Hogrefe Publishing Merkelstr. 3 · 37085 Göttingen · Germany Tel: +49 551 999 50-0 · Fax: -111 E-Mail: [email protected] Hogrefe Publishing c/o ...

ژورنال: :مجله گیاهشناسی ایران 2009
نسیم اذانی مسعود شیدایی فریده عطار

بررسی خصوصیات مورفولوژیکی و دانه های گرده در جمعیت های 12 گونه achillea از سه بخش santolinoidea ، millefolium و  filipendulinae انجام گرفت. تعداد 33 صفت ریختی شامل 13 صفت کمی و 20 صفت کیفی برسی شدند. آنالیز واریانس وجود اختلاف معنی دار را در بسیاری از صفات کمی در میان جمعیت ها و گونه های مطالعه شده نشان داد. تجزیه خوشه ای بر اساس صفات کمی و نیز توام با صفات کیفی، جدایی جمعیت های یک گونه را از د...

2013
Ismayil YILMAZ Mehmet I. TURAN Isil S. TURAN Durdu ALTUNER Hamit H. ALP Recep Tayyip Erdogan

Ismayil YILMAZ 1, Ismail DEMIRYILMAZ 2, Mehmet I. TURAN 3*, Bahadır SULEYMAN 4, Isil S. TURAN 5, Durdu ALTUNER 4, Hamit H. ALP 6 & Halis SULEYMAN 4 1 Erzincan University, Faculty of Medicine, Department of Surgery, Erzincan, Turkey 2 Ibni Sina Hospital, Department of General Surgery, Kayseri, Turkey 3 Diyarbakir Research and Educational Hospital, Department of Pediatric Neurology, Diyarbakir, T...

2002
Gerhard Venter Jaroslaw Sobieszczanski-Sobieski

The purpose of this paper is to show how the search algorithm known as particle swarm optimization performs. Here, particle swarm optimization is applied to structural design problems, but the method has a much wider range of possible applications. The paper's new contributions are improvements to the particle swarm optimization algorithm and conclusions and recommendations as to the utility of...

2012
Jari Oksanen

Constrained ordination methods include constrained (or canonical) correspondence analysis (CCA), redundancy analysis (RDA) and distancebased redundancy analysis (db-RDA). Constraining means that ordination only shows the community variation that can be explained by external environmental variables or constraints. This document describes the following basic concepts (1) usage of constrained ordi...

2001
Andreas Gerber Christian Ruß

This paper presents a holonic co-ordination server which is made up of a recursive hierarchy of three different agent types: On the top stands an agent providing matchmaking services and representing the co-ordination server to the outside. It passes incoming requests to a subordinated agent type that is equipped with co-ordination mechanisms such as auctions, negotiations and coalition formati...

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