نتایج جستجو برای: tapering
تعداد نتایج: 6320 فیلتر نتایج به سال:
A new species of Phallocryptus Biraben 1951 (Branchiopoda, Anostraca) from Mongolia is described. Phallocryptus tserensodnomi sp. nov. is close to P. spinosa (Milne-Edwards 1840), but both morphological and molecular analyses (Cytochrome Oxidase I, COI) indicate that they represent separate species. Most relevant differential features of the new species include: (1) frontal appendage provided w...
BACKGROUND Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS) is a relatively rare clinical entity; even more so in response to vancomycin. METHODS Case report. RESULTS We present a severe case of vancomycin-induced DRESS syndrome, which on presentation included only skin, hematological and mild liver involvement. The patient further developed severe acute interstitial nephritis,...
We discuss the asymptotic Cramer-Rao bound (CRB) for frequency estimation in the presence of multiplicative noise. To improve numerical stability, covariance matrix tapering is employed when the covariance matrix of the signal is singular at high SNR. It is shown that the periodogram-based CRB is a special case of frequency domain evaluation of the CRB, employing the covariance matrix tapering ...
In this letter, a novel design approach of low-sidelobe series-fed patch antenna array is proposed which has enhanced bandwidth and radiation efficiency. It based on the fact that out-to-input voltage amplitude ratio an inset-fed element could be manipulated by changing insert depth output microstrip line. Thus, utilizing cascaded mechanism, achieves tapering for desired sidelobe suppression. T...
We demonstrate single-mode ZBLAN optical fiber couplers. A controlled tapering procedure leads to coupling ratios of 5%/95% and 14%/86% at a wavelength 2200 nm, with insertion losses 1.6 dB 1.8 dB, respectively.
PURPOSE The purpose of this investigation was to assess the effects of alterations in taper components on performance in competitive athletes, through a meta-analysis. METHODS Six databases were searched using relevant terms and strategies. Criteria for study inclusion were that participants must be competitive athletes, a tapering intervention must be employed providing details about the pro...
We propose a simple method to improve the light extraction in GaN based light emitting diode. Conventional light emitting diode has an extraction limitation due to the total internal reflection which occurs at the interface between GaN and air. By using periodic grating etched at the GaN layer, we can couple more emitting light out of the active layer. Tapering the grating structure would facil...
Dopaminergic drugs can cause augmentation during the treatment of restless legs syndrome (RLS). We previously reported that sudden withdrawal of dopaminergic treatment was poorly tolerated. We now report our experience with gradual withdrawal of the dopaminergic drug during the drug substitution process using a retrospective chart review with comparison to previous data. Seven patients with RLS...
Oue of (.he key questions to be addressed in t,liis paper is how 1.0 estimate the deterministic input multipulse time series from a noisy respouse of the resonant transfer system iii (.lie case where t.he SNR is low aud the system Q(quality laci.or) of Ihe transfer system is high. By generaliziug the sharp truucabion employed in the standard singular-valuedecomposit.ion(SVD), a tapering window ...
The design procedure of 2and 3-order low-sensitivity lowpower allpole active resistance-capacitance (RC) filters, using the impedance tapering design method has already been published. Beside sensitivity minimization the impedance tapering was used for output noise minimization and output dynamic range maximization. In this paper it is shown that active resistance-capacitance (RC) filters can a...
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