نتایج جستجو برای: alchemilla

تعداد نتایج: 184  

2013
Carsten Burstedde Georg Stadler Laura Alisic Lucas C. Wilcox Eh Tan Michael Gurnis Omar Ghattas

Carsten Burstedde,1,2 Georg Stadler,1 Laura Alisic,3,4 Lucas C. Wilcox,1,5 Eh Tan,6,7 Michael Gurnis3 and Omar Ghattas1,8,9 1Institute for Computational Engineering and Sciences (ICES), The University of Texas at Austin, Austin, TX, USA. E-mail: [email protected] 2Institut fur Numerische Simulation, Rheinische Friedrich-Wilhelms-Universität Bonn, Germany. E-mail: [email protected]....

2005
Eh Tan Michael Gurnis

[1] Seismically, the African superplume is known to have a sharp lateral transition in VS and an interface between seismic anomalies with high relief. Such a structure is usually unstable in conventional thermo-chemical convection models. Using a compressible thermo-chemical convection model in which each material has a distinct equation of state, we find an expanded regime of metastable superp...

2007
Eugene Humphreys Robert W. Clayton Bradford H. Hager

We determined the variations in seismic structure beneath southern California by using a tomographic method of inversion on teleseismic P delays recorded with the Southern California Array. The algorithm employed was a modified form of an Algebraic Reconstruction Technique (ART) used in medical X-ray imaging. Deconvolution with an empirically estimated point spread function was also used to hel...

Journal: : 2022

This article analyzes the materials of “Set additions and changes to check-list flora Republic Buryatia from 2001 2020”. Corrections comments are given on 50 species higher vascular plants, both erroneously cited as novelties, and, contrary, absent original publication, regarding territory Baikalsky State Nature Reserve its buffer zone. Two taxa amongst omitted in source material included Red D...

Journal: :Nordic Journal of Botany 2023

The supplementary botanical list features 64 species of vascular plants which are new, rare or forgotten records from the Faroe Islands. They cumulative notes produced numerous excursions over two last decades. new described with who discovered them, and literature references given where appropriate. Some not discoveries for Faroes but have been found in localities missed most recent lists. als...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده علوم پایه 1392

مطالعه حاضر به بررسی صفات تشریحی برگ و دمبرگ 24 گونه از سرده alchemilla l. از ایران با استفاده از میکروسکوپ نوری اختصاص دارد. صفات تشریحی متعدد قسمت های مختلف برگ (شامل پهنک و رگبرگ اصلی) و دمبرگ بررسی و اندازه گیری شد. پهنک برگ در نمونه های مورد مطالعه دارای اپیدرم 1 لایه، کرک های ساده و پایه دار، کرک غده ای، روزنه های فرورفته در دو سوی برگ، مزوفیل دو سویه، پارانشیم نردبانی 1 الی 2 لایه، پاران...

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