نتایج جستجو برای: phase detector pd
تعداد نتایج: 706375 فیلتر نتایج به سال:
An experimental analysis is performed to evaluate Rogowski coil performance for PD (partial discharge) location on overhead CC (covered-conductor) distribution lines. The measuring set-up is arranged in high voltage laboratory. A multi-end measuring method is chosen as a technique to locate PD source point on the line. A power transformer is used to energize one end of the CC line by the AC vol...
Performance analysis of the p-norm detector to date has been limited to ad hoc approximations, non-fading channels and Rayleigh fading. To overcome these limitations, we develop several analytical/numerical solutions for the detection probability Pd and the false alarm probability Pf , which are necessary to specify the receiver operating characteristic curves of the p-norm detector. First, for...
A powder X-ray diffraction (XRD) method to enhance the signal of a specific crystalline phase within a mixture is presented for the first time. Specificity to the targeted phase relies on finding coincidences in the ratios of crystal d spacings and the ratios of elemental characteristic X-ray energies. Such coincidences can be exploited so that the two crystal planes diffract through the same s...
introduction: parkinson s disease (pd) is a common progressive neurodegenerative disorder, which its onset is later in adults and it s incidence increases in people aged between 55 and 60 years. dexterity, because of it s role at upper extremity function and person independency in function, is assessed in rehabilitation. purdue- pegboard test often is used in rehabilitation clinical settings...
The realization of a digital phase-locked loop (DPLL) requires to choose a suitable phase detector and to design an appropriate loop filter; these tasks are commonly nontrivial in most applications. In this paper, the phase detector is examined, and a simple model is given to describe the characteristics of the timing function. The DPLL system is then formulated as a state estimation problem; t...
The pressure–composition (PC) behavior of deuterium in single crystal Pd has been measured over a temperature range extending from room temperature to 393 K. These data allow the determination of (i) relative partial molar enthalpy and entropy, without the contribution of the configuration entropy, for the dilute solid solution phase, (ii) enthalpy and entropy change characterizing the a→a9 pha...
an efficient separation-preconcentration procedure namely hollow fiber solid/liquid phase microextraction (hf-slpme) was developed for determination of trace amounts of palladium in water samples by differential pulse voltammetry. in this method, a hybrid sorbent utilizing functionalized nanoparticles incorporated in an organic solvent was used as the extractor phase. the nanoparticle disperse...
Photodiode (PD) light sensors, PD arrays and image sensors with a wide spectral response, including ultraviolet light (UV-light) waveband of 200-380 nm, are strongly required in the fields of various spectrophotometric analysis, biological phenomena analysis, environmental assessment and space vision1)~4). For the image sensor development, an improvement of UV-light sensitivity and an improveme...
In this work, we studied the phase transitions and exchange bias of Ni50-xMn36Sn14Tx (T = Pd, Pt; x = 0, 1, 2, 3) alloys. An intermartensitic transition (IMT), not observed in Ni50Mn36Sn14 alloy, was induced by the proper application of negative chemical pressure by Pd(Pt) doping in Ni50-xMn36Sn14Tx (T = Pd, Pt) alloys. IMT weakened and was suppressed with the increase of applied field; it also...
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