نتایج جستجو برای: hyperbolic cylinder

تعداد نتایج: 46062  

Journal: :تحقیقات مهندسی کشاورزی 0
نعیم لویمی عضو هیئت علمی بخش تحقیقات فنی و مهندسی مرکز تحقیقات کشاورزی و منابع طبیعی خوزستان عبدالعلی گیلانی عضو هیئت علمی بخش تحقیقات برنج مرکز تحقیقات کشاورزی و منابع طبیعی خوزستان محمدرضا علیزاده عضو هیئت علمی مؤسسه تحقیقات برنج کشور.

multistage and semi-mechanized harvesting of rice in khouzestan province, iran, causes much loss. depending on available facilities and conditions, either spike-tooth or rasp-bar cylinders are employed with either direct or indirect combine harvesting methods. the present research studied the effect of these different harvesting methods on the amount of losses in two rice varieties in 2001-2002...

Journal: :Annales Henri Poincaré 2022

We provide a detailed construction of the quantum theory massless scalar field on 2-dimensional, globally-hyperbolic (in particular, Lorentzian) manifolds using framework perturbative algebraic theory. From this we subalgebras observables isomorphic to Heisenberg and Virasoro algebras Einstein cylinder. also show how conformal version general covariance, as first introduced by Pinamonti an exte...

Journal: :Journal of Applied Physics 2021

Scattering from anisotropic geometries of arbitrary shape is relatively difficult to interpret physically, involving the intricate interplay between material and geometric effects. Insights into complex scattering mechanisms are often enabled by modal methods that decompose response well-understood multipolar resonances. Here, we extend generalized normal mode expansion lossy scatterers. Unique...

2015
Stefano Bolognesi Alex Cockburn Paul Sutcliffe

A large class of explicit hyperbolic monopole solutions can be obtained from JNR instanton data, if the curvature of hyperbolic space is suitably tuned. Here we provide explicit formulae for both the monopole spectral curve and its rational map in terms of JNR data. Examples with platonic symmetry are presented, together with some one-parameter families with cyclic and dihedral symmetries. Thes...

2013
Mahsa Baktash Mehrtash Tafazzoli Harandi Abbas Bigdeli Brian C. Lovell Mathieu Salzmann

In Analytic SSA, an approximate upper bound to the logdet term in Eq. 4 is computed (Hara et al., 2012). Without re-deriving this bound entirely, we present its final steps, which we use to obtain the bounds for KSSA and NLSSA.

In this paper, the  optical properties of a semi-infinite medium composed of graphen-based hyperbolic meta-materials with the optical axis were tilted with respect to its boundary with air, by using the  Maxwell equations; then  the homogeneous effective medium approximation method was  studied. The results showed that the orientation of the structure layers (geometric induced anisotropy) affec...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان - دانشکده برق و کامپیوتر 1394

در این پایان‎نامه روشی جدید برای تعیین مکان خطا در خطوط انتقال سه ترمیناله ارائه شده است. این روش در دسته روش های مکان یابی مبتنی بر امواج سیّار طبقه بندی می‎شود. روش‎های پیشنهادی با استفاده از اطلاعات سنکرون از ابزارهای تبدیل s، hyperbolic s، time‎-time، wavelet و hilbert برای استخراج ویژگی های سیگنال‎های جریان و ولتاژ بهره گرفته‎اند. مطالعات شبیه‎سازی گسترده‎ای جهت ارزیابی عملکرد الگوریتم پیشن...

2012
Nicola Dimitri Jan van Eijck

Time discounting is the phenomenon that a desired result in the future is perceived as less valuable than the same result now. Economic theories can take this psychological fact into account in several ways. In the economic literature the most widely used type of additive time discounting is exponential discounting. In exponential discounting, the fall of valuation depends by a constant factor ...

Journal: :international journal of advanced design and manufacturing technology 0
a.b. khoshnevis amirreza mamouri v. barzenoni

an experimental study was carried out on the wake of a cylinder on the back of which a plate is installed parallel to the fluid flow, with different terminal angles, where the reynolds number is 50000. at the end of the plate, blades with the height of 0.25 equal to the cylinder diameter and with 45, 90 and 135 degrees angle from the horizon, are installed where the cylinder diameter is equal t...

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