نتایج جستجو برای: plane platanus
تعداد نتایج: 119336 فیلتر نتایج به سال:
Background and purpose: Occlusal plane in edentulous patients is lost and needs to be reconstructed. The most common method for reconstructing occlusal plane is to make it parallel to the ala-tragus line. There are disagreements about the posterior reference of ala-tragus line. The aim of this study was to determine the best posterior reference of ala-tragus line (superior, middle and anterior ...
Throughout the Phanerozoic, estimated CO2 levels from proxies generally correlate well with independent estimates of temperature. However, some proxy atmospheric during Late Cretaceous and early Paleocene are low (<400 ppm), seemingly at odds elevated sea surface Here we evaluate by applying a leaf gas-exchange model to Platanites leaves four localities San Juan Basin, New Mexico (65.66–64.59 M...
Dielectric Resonator Antennas (DRAs) have received increased interest in recent years for their potential applications in microwave and millimeter wave communication systems. DRAs are normally used with the support of a ground plane. The radiation and impedance properties therefore depend not only on their physical dimensions and dielectric properties, but also on the size of the ground plane. ...
Ultrasonography is a safe, rapid, and non-invasive diagnostic tool that has been previously used for imaging infants and canine neonatal brains. The purpose of the present study was to describe the ultrasonographic appearance of the brain in clinically normal caprine neonates. Ultrasonographic examination was done on 12 day-old goat kids, transverse and sagittal transcranial scans were obtained...
Background : Rocker sole are the most commonly prescribed external therapeutic shoe modification. rocker profiles have also proven useful in the treatment of conditions requiring limitation of the ankle and midfoot motions. The aim of this study was to assessed the effects of the heel- to-toe rocker shoes on the motion of the forefoot and hindfoot . Materials and Methods: In this quasi-exprime...
در این تحقیق مقاومت و تمرکز تنش بر روی سازه ی صندلی با تغییر نوع اتصال(اتصال کام و زبانه- اتصال دوبل) مورد بررسی قرار گرفت.برای ساخت صندلی ها از چوب چنار(platanus orientalis) استفاده و برای محاسبه ی مقاومت صندلی ها از دستگاه آزمون مکانیکی با سرعت بارگذاری 7/12 میلی متر بر دقیقه و برای نشان دادن توزیع تنش بر روی عضوهای صندلی از نرم افزار Ansys استفاده شد.نتایج نشان می دهد که صندلی با اتصال زبانه...
Recent studies have shown that, in some species, xylem hydraulic conductivity (K(h)) increases with increasing cation concentration of xylem sap. Evidence indicates that K(h) increases as a result of the de-swelling of pit membrane pectins caused by cation neutralization of polygalacturonanes. We tested whether this ionic effect partly compensates for the embolism-induced loss of stem hydraulic...
in this paper the propagation of harmonic plane waves in a homogeneous anisotropic magneto-piezothermoelastic diffusive body with fractional order derivative is studied. the governing equations for a homogeneous transversely isotropic body in the context of the theory of thermoelasticity with diffusion given by sherief et al. [1] are considered as a special case. it is found that three types of...
in this paper a discrete big bang-big crunch algorithm is applied to optimal design of reinforced concrete planar frames under the gravity and lateral loads. optimization is based on aci 318-08 code. columns are assumed to resist axial loads and bending moments, while beams resist only bending moments. second-order effects are also considered for the compression members, and columns are checked...
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