نتایج جستجو برای: sine
تعداد نتایج: 8576 فیلتر نتایج به سال:
A new short interspersed element (SINE) was isolated from the genome of desert kangaroo rat (Dipodomys deserti) using single-primer PCR. This SINE consists of two monomers: the left monomer (IDL) resembles rodent ID element and other tRNAAla(CGC)-derived SINEs, whereas the right one (Geo) shows no similarity with known SINE sequences. PCR and hybridization analyses demonstrated that IDL-Geo SIN...
Several types of Darboux transformations for supersymmetric integrable systems such as the Manin-Radul KdV, Mathieu KdV and SUSY sine-Gordon equations are considered. We also present solutions such as supersolitons and superkinks. ⋆ On leave of absence from Beijing Graduate School, CUMT, Beijing 100083, China ⋆⋆ Supported by Beca para estancias temporales de doctores y tecnólogos extranjeros en...
In a wireless sensor network, measures to rationally evaluate the signal detected and reported by the sensor are needed. To infer the context based on the detected signal, determination of basic probability assignment for multi-sensor data fusion using Dempster-Shafer Theory is proposed. If there is insufficient advance information in a wireless sensor network using different type of sensors, i...
Many acoustic instruments create a harmonic series, a collection of sine-waves uniformly spaced in frequency. A listener aggregates such collections of sine-waves, or partials, into a single pitch. Some acoustic instruments allow portamento, the smooth glide from one pitch to another. For example, the violin and trombone. During acoustic portamento, each sine-wave transitions in parallel motion...
We show that high-dimensional analogues of the sine function (more precisely, the d-dimensional polar sine and the d-th root of the d-dimensional hypersine) satisfy a simplex-type inequality in a real preHilbert space H. Adopting the language of Deza and Rosenberg, we say that these d-dimensional sine functions are d-semimetrics. We also establish geometric identities for both the d-dimensional...
Height is one of the most important dimensions of trees, but few observers are fully aware of the consequences of the misapplication of conventional height measurement techniques. A new approach, the sine method, can improve height measurement by being less sensitive to the requirements of conventional techniques (similar triangles and the tangent method). We studied the sine method through a c...
This paper presents the preliminary results of an extensive parametric study on seismic response of two-dimensional semi-sine shaped hills to vertically propagating incident P- and SV-waves. Clear perspectives of the induced diffraction and amplification patterns are given by investigation of time-domain and frequency-domain responses. It is shown that site geometry, wave characteristics , and ...
this paper presents a modified 32-bit rom-based direct digital frequency synthesizer (ddfs). maximum output frequency of the ddfs is limited by the structure of the accumulator used in the ddfs architecture. the hierarchical pipeline accumulator (hpa) presented in this paper has less propagation delay time rather than the conventional structures. therefore, it results in both higher maximum ope...
35th ANNIVERSARY ISSUE Sinusoidal vibration testing has evolved over the years for many good reasons. Initially, from a military standpoint, a predominant part of vibration excitation was from propeller driven aircraft. Here, system resonances could easily be excited during runup, or in the more unfortunate circumstance, during sustained operation at flight speed. Although there initially was o...
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