نتایج جستجو برای: golden ratio
تعداد نتایج: 514917 فیلتر نتایج به سال:
The unprecedented light curves of the Kepler space telescope document how the brightness of some stars pulsates at primary and secondary frequencies whose ratios are near the golden mean, the most irrational number. A nonlinear dynamical system driven by an irrational ratio of frequencies generically exhibits a strange but nonchaotic attractor. For Kepler ’s “golden” stars, we present evidence ...
The Golden code is a full-rate space-time block (STBC), which achieves diversity order of $2N_{r}$ , where $N_{r}$ the number receive antennas. multiple complex symbol (MCS-Golden code) generalized code. MCS-Golden not only but also $2^{n}{N_{r}}$ $n$ $n\ge {1}$ an integer, and $2^{n}$ symbols in system. In this paper, we apply labelling technique to form new type STBC, named as (MCS-GSTLD). pr...
Computation of a face attractiveness index based on neoclassical canons, symmetry, and golden ratios
Analysis of attractiveness of faces has long been a topic of research. Literature has identified many different factors that can be related to attractiveness including symmetry, averageness, sexual dimorphism and adherence to the Golden Ratio. In this research we systematically analyze the role of three factors: symmetry, conformance to Neoclassical Canons and the Golden Ratio in the determinat...
In speech production research using real-time magnetic resonance imaging (MRI), the analysis of articulatory dynamics is performed retrospectively. A flexible selection of temporal resolution is highly desirable because of natural variations in speech rate and variations in the speed of different articulators. The purpose of the study is to demonstrate a first application of golden-ratio spiral...
A decade ago, the Bohr radius of hydrogen atom was interpreted as the sum of two Golden sections pertaining to the electron and proton, and those of the bond length of a hydrogen molecule as the cationic and anionic radii. Subsequently, this result was shown to be applicable to other elements as well. Further, the bond lengths in the structures of molecules were found to be sums of the appropri...
Different plant cultivars of the same genus and species can exhibit vastly different genetic transformation efficiencies. However, the genetic factors underlying these differences in transformation rate remain largely unknown. In barley, 'Golden Promise' is one of a few cultivars reliable for Agrobacterium-mediated transformation. By contrast, cultivar 'Haruna Nijo' is recalcitrant to genetic t...
K9 crisis comfort dogs Beau (front) and Dolly sit with grieving residents of Newtown, Connecticut, during a recent community meeting. The pair is part of a nine-dog team of golden retrievers sent with their volunteer handlers to Newtown after the shootings at Sandy Hook Elementary School late last year. The dogs are also employed after natural disasters, and to bring comfort to nursing home pat...
BACKGROUND During reconstruction or augmentation, it is important to localize the malar complex in a symmetrical and aesthetically pleasing position. Few studies have determined the location of this feature and none related the location to gender, age, or ethnicity. Some of these have attempted to relate the position to the aesthetically pleasing Golden Ratio φ. METHODS We assessed the vertic...
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