نتایج جستجو برای: peak detector

تعداد نتایج: 198135  

2008
J. R. Dwyer Z. Saleh H. K. Rassoul D. Concha M. Rahman V. Cooray J. Jerauld M. A. Uman V. A. Rakov

[1] We present a detailed investigation of X-ray emission from long laboratory sparks in air at atmospheric pressure. We studied 231 sparks of both polarities using a 1-MV Marx generator with gap lengths ranging from 10 to 140 cm. The X rays generated by the discharges were measured using five NaI/PMT detectors plus one plastic scintillator/PMT detector, all enclosed in 0.32-cm-thick aluminum b...

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Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2007
Stephen M Rogers Holger G Krapp Malcolm Burrows Thomas Matheson

We characterized homeostatic plasticity at an identified sensory-motor synapse in an insect, which maintains constant levels of motor drive as locusts transform from their solitarious phase to their gregarious swarming phase. The same mechanism produces behaviorally relevant changes in response timing that can be understood in the context of an animal's altered behavioral state. For individual ...

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1998
H. J. Willutzki

We present .a study of the decay sequence J/w + yX, X-+ yp', p "-+ rr+rr-, _. based on 5.8 x lo6 produced J/i) collected by the Mark III detector at SPEAR. In the yp " mass spectrum, we find two peaks with masses and widths consistent with the axial vector mesons ji(1285) and ji(1420) that have recently been observed in two-photon collisions. Fits to the angular distributions confirm that the f...

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2017
Chengyu Yan Sanjeev Kumar Michael Pepper Patrick See Ian Farrer David Ritchie Jonathan Griffiths Geraint Jones

We present experimental results of transverse electron-focusing measurements performed using n-type GaAs. In the presence of a small transverse magnetic field (B⊥), electrons are focused from the injector to detector leading to focusing peaks periodic in B⊥. We show that the odd-focusing peaks exhibit a split, where each sub-peak represents a population of a particular spin branch emanating fro...

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2012
Maria Beatriz Ferreira Guilherme Campos

This paper presents a two-stage crackle detection algorithm combining Empirical Mode Decomposition (EMD) and a simple energy peak detector. A discussion is presented of the main issues arising in the implementation of the EMD stage and the solutions adopted. The algorithm was implemented in MATLAB® and preliminarily tested on an annotated 10-second respiratory sound file, without any prior syst...

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2014
Eivind Lund Anja R. Oldenburg Philippe Collas

Nuclear lamins contact the genome at the nuclear periphery through large domains and are involved in chromatin organization. Among broad peak calling algorithms available to date, none are suited for mapping lamin-genome interactions genome wide. We disclose a novel algorithm, enriched domain detector (EDD), for analysis of broad enrichment domains from chromatin immunoprecipitation (ChIP)-seq ...

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2004
F. Krug

In this paper, an advanced ultra-fast, broadband time domain EMI measurement system is described. Measurements were performed in the 30–1000 MHz range. The digital signal processing of EMI measurements allows to emulate in real-time the modes of conventional analogous equipment, e.g. Peak-, Average-, RMSand Quasi-PeakDetector. With the presented time domain measurement system the measurement ti...

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1999
Andrew Wilson Howitt

Landmark based speech processing is a component of Lexical Access From Features (LAFF), a novel paradigm for feature based speech recognition. Detection and classi cation of landmarks is a crucial rst step in a LAFF system. This work tests the theoretical characteristics of vowels, and shows results for work in progress on a Vowel Landmark Detector. Acoustic theory predicts rst formant peaks in...

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2002
I. Adachi Byoung Sup Ahn H. Aihara M. Akatsu Y. Asano T. Aso V. Aulchenko P. K. Behera A. Bondar A. Bozek M. Bračko J. Brodzicka T. E. Browder B. C. K. Casey P. Chang Y. Chao B. G. Cheon J. H. Kang J. S. Kang P. Kapusta N. Katayama H. Kawai Y. Kawakami N. Kawamura T. Kawasaki H. Kichimi D. W. Kim Heejong Kim H. J. Kim H. O. Kim Hyunwoo Kim T. H. Kim K. Kinoshita P. Križan P. Krokovny R. Kulasiri S. Kumar A. Kuzmin Y.-J. Kwon J. S. Lange G. Leder S. H. Lee T. Matsumoto H. Miyake H. Miyata G. R. Moloney T. Mori T. Nagamine Y. Nagasaka E. Nakano M. Nakao J. W. Nam Z. Natkaniec H. Palka C. W. Park H. Park L. E. Piilonen F. J. Ronga M. E. Sevior H. Shibuya B. Shwartz V. Sidorov J. B. Singh S. Stanič M. Starič A. Sugi S. Y. Suzuki T. Takahashi F. Takasaki K. Tamai N. Tamura J. Tanaka M. Tanaka G. N. Taylor S. E. Vahsen G. Varner K. E. Varvell C. C. Wang C. H. Wang J. G. Wang E. Won B. D. Yabsley Y. Yamada A. Yamaguchi Y. Yamashita M. Yamauchi H. Yanai J. Yashima M. Yokoyama

We report the observation of a narrow peak in the KSK −π+ invariant mass distribution in a sample of exclusive B → KKSKπ decays collected with the Belle detector at the KEKB asymmetric e+e− collider. The measured mass of the peak is M = 3654±6(stat)±8(syst) MeV/c2 and we place a 90% confidence level upper limit on the width of Γ < 55 MeV/c2. The properties agree with heavy-quark potential model...

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2011
Igors HOMJAKOVS Masanori HASHIMOTO Takao ONOYE Tetsuya HIROSE

This paper presents an architecture of signaldependent analog-to-digital converter (ADC) based on MINIMAX sampling scheme that allows achieving high data compression rate and power reduction. The proposed architecture consists of a conventional synchronous ADC, a timer and a peak detector, and AD conversion is carried out only when input signal peaks are detected. To improve the accuracy of sig...

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