نتایج جستجو برای: plane platanus
تعداد نتایج: 119336 فیلتر نتایج به سال:
the present paper is concerned with the generalization of the holditch theorem under oneparameterhomothetic motion on lorentzian planes. in this paper, for the homothetic lorentzian motion, weexpressed the steiner formula. furthermore, we present the holditch-type theorems.
درختان خیابانی از مهمترین عناصر سازندة پوششهای سبز شهری بهشمار میآیند. با توجه به اینکه روزانه افراد و وسایل نقلیة زیادی در پیادهروها و خیابانهای شهر در حرکت هستند، هرگونه عیب و نقصی در این درختان ممکن است به بروز خطرهای مالی و جانی منجر شود. برای این منظور مقدار خطرآفرینی درختان چنار دو سمت خیابان ولیعصر (حد فاصل میدان تجریش تا تقاطع خیابان طوس) با روش آماربرداری صددرصد و با استفاده از م...
steel structures are usually built with some defects. according to the standard building codes, the central axes of the bracing members should go through the beam-column joints, however, in most of the braced steel structures, bracing members are unintentionally connected eccentrically. this paper presents a numerical investigation on performance analysis of cbfs (concentrically braced frames) ...
Methicillin-resistant S. aureus (MRSA) are a threat to public health as they frequently reveal multidrug-resistant pattern. Researchers all over the world on an urgent hunt for new treatments help fight infections before antibiotics become obsolete, and some natural alternatives, such polyphenols, have already exhibited therapeutic properties. Therefore, this study aimed determine phenolic prof...
platanus orientalis l. (platanaceae) is a medicinal tree used in iranian folklore and traditional medicine as a pain and inflammation reliever. in this study, the polyphenolic and total extract of p. orientalis leaves were prepared and their antinociceptive effects were studied in mice using the acetic acid-induced writhing, formalin and light tail flick tests. both hydroalcoholic and polypheno...
This paper shows a theoretical study of the thermal properties of armchair grapehen nanoribbons in the presence of extended vacancies. Each graphene nanoribbons formed by superlattices with a periodic geometric structure, different size and symmetry of vacancies. The phonon dispersion, specific heat and thermal conductivity properties are described by a force-constant model and also by Landauer...
The analysis of rotational effect on the characteristics of plane waves propagating in a half space of generalized thermo-piezoelectric medium is presented in context of linear theory of thermo-piezoelectricity including Coriolis and centrifugal forces. The governing equations for a rotating generalized thermo-piezoelectric medium are formulated and solved for plane wave solutions to show the p...
Diffuse normolipemic plane xanthoma is characterized by thepresence of yellowish-orange plaques on the eyelids, neck, uppertrunk, buttocks and flexural surfaces of the extremities in patientswith a normal lipid profile. It mainly affects adults of both sexes.Diffuse normolipemic plane xanthomas are usually associatedwith reticuloendothelial system disorders, such a...
Crown shapes of common European urban tree species differ from to and are modified by the age a its local environment. A tree’s crown shape has great influence on volume thus ecosystem service provision such as shade area or density. We used data 3852 individuals eight German cities 528 trees for Acer platanoides, pseudoplatanus, Aesculus hippocastanum, Fraxinus excelsior, Platanus × acerifolia...
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