نتایج جستجو برای: taxonomy
تعداد نتایج: 29526 فیلتر نتایج به سال:
a large collection of botryosphaeriaceae isolates obtained from fruit and forest trees with fruit rot, canker and dieback disease symptoms in northern provinces of the country were examined in this study. based on morphology and sequence data (its and ef1-α), two species, diplodia mutila and spencermartinsia viticola are illustrated and described as new records for iran mycobiota. furthermore, ...
A taxonomy of cryptographic protocol attacks is helpful for cryptographic protocol analysis. There are taxonomies of cryptographic protocol awss5, 9] and a taxonomy of replay attacks in terms of message origin and destinationn25]. This paper presents an attack taxonomy based on an intruder's objectives when launching attacks and the roles s/he plays. Understanding an intruder's possible behavio...
This paper places geographical information systems (GZS) in the context of information systems generally and spe@cally illustrates how GIS may be classified by adapting an earlier taxonomy of information systems. The recent literature on information systems taxonomies is critically reviewed and an earlier taxonomy is tested and applied against several case study organisations who use GIS. It is...
Building on previous works (e.g. Kubozono 2006, and Kang 2010), this article attempts to establish a taxonomy for loanword prosody, referring specifically to the patterns of stress, tone, or pitch-accent that are found in loanwords. Toward a taxonomy, we consider the following factors: (i) whether the pronunciation of the word in the source language influences the assignment of prosody in the b...
This paper presents a taxonomy of errors in chat-oriented dialogue systems. Compared to human-human conversations and task-oriented dialogues, little is known about the errors made in chat-oriented dialogue systems. Through a data collection of chat dialogues and analyses of dialogue breakdowns, we classified errors and created a taxonomy. Although the proposed taxonomy may not be complete, thi...
In this paper we describe a taxonomy of object-oriented classes that catalogs each class in an application according to the characteristics of that class, including the properties of the data attributes and routines as well as the relationships with other classes. Our taxonomy is motivated by the fact that the current research literature contains no formal methodology for capturing the characte...
We introduce a family of unsupervised algorithms, numerical taxonomy clustering, to simultaneously cluster data, and to learn a taxonomy that encodes the relationship between the clusters. The algorithms work by maximizing the dependence between the taxonomy and the original data. The resulting taxonomy is a more informative visualization of complex data than simple clustering; in addition, tak...
گونة scorzonera ovataکه از شمال شرقی ایران جمع شده است برای اولین بار و گونة scorzonera longipapposaکه از جنوب ایران جمع آوری گردیده است به عنوان گونه ای جالب از ایران گزارش می شوند.
this paper reports some species of ameroseiidae from various habitats in different parts of iran. ameroseius bassolase (vargass, 2001)has been reported from iran, but it was a misidentification of sertitympanum aegyptiacus nasr & abow-awad, 1984. redescription of ameroseius lidiae bregetova, 1977 based on female specimens is also presented.
در این مطالعه دانه گرده 13 گونه از جنس rosa متعلق به دو زیر جنس rosa و hulthemia و یک دورگه با استفاده از میکروسکوپ نوری و الکترونی مورد مطالعه قرار گرفت. بر اساس شکل دانه گرده، در 11 تاکسون شکل subprolate و به ندرت prolate, prolate- spheroidal مشاهده شد. دانههای گرده سه شیار منفذی و ساختار دریچه شامل 3 ectocolpi و3 endopores است. endopores معمولا در بخش میانی ectocolpi قرار گرفته اند. مشابه ...
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