plane and mulberry trees play a crucial role in purifying the polluted air in tehran as a majorcity. in this research, 13 main districts of tehran city were chosen as study area. 20 completely healthy planeand mulberry species were selected in similar ecological conditions and age range. the uptake of cd and pbwas determined using spectrophotometry, whereas the chlorophyll content was measured ...

due to the different factors and complexity of their effects on healthy and sustainability of urban forest, this study has been tried by means of determining effective factors in ecosystem, and dividing sorkhe hesar man made forest park to homogeneous units according to natural factors (slope, aspect, high, soil depth, mixture and pure planting system) and human factors (amount of irrigation an...

The effect of nighttime lighting on the anatomical and morphological structure content photosynthetic pigments in leaves Tilia cordata, Aesculus hippocastanum, Platanus acerifolia was estimated example garden-park street plantings Kyiv. At experimental sites, level illumination soil surface temperature during day night periods were examined. studied using transmission electron microscopy. (chlo...

impact is one of the most important subjects which always have been considered in mechanical science. nature of impact is such that which makes its control a hard task. therefore it is required to adopt a safe and secure mechanism for transferring the impact to other vulnerable parts of a structure, when it is necessary. one of the best methods of absorbing impact energy is using thin-walled tu...

in this article, vehicle cornering stability and brake stabilization via bifurcation analysis has been investigated. in order to extract the governing equations of motion, a nonlinear four-wheeled vehicle model with two degrees of freedom has been developed. using the continuation software package matcont a stability analysis based on phase plane analysis and bifurcation of equilibrium is perfo...

Empregada na arborização urbana em muitas cidades, a árvore Platanus acerifolia Willd. (Platanaceae) está sujeita à ação de insetos fitófagos, dentre esses, o xilófago Pantophthaulmus pictus (Wiedemann, 1821) (Diptera: Pantophthalmidae), conhecido popularmente como mosca-da-madeira, que pela sua larva broqueia seu fuste. Portanto, este trabalho objetivou registrar e caracterizar os danos P. no ...

The efficacy of soil conditioner (vermicompost tea), fertiliser (potassium silicate), and biological control agents (BCAs) as practical agroecological copper alternatives against olive leaf spot (Spilocaea oleaginea (Cast.) Hughe.) disease was investigated between 2018 2021 under organic management in a Mediterranean climate. In total, 9 to oxychloride tea, potassium silicate, Bacillus subtilis...

a fundamental assumption in prosthetic dentistry is that the axis-orbital plane will usually be parallel to the horizontal reference plane. most articulator systems have incorporated this concept into their designs and use orbitale as the anterior reference point for transferring the vertical position of the maxilla to the articulator. clinical observations of cantonese patients suggest that in...