http://www.bibsonomy.org/burst/tag/frequencyBibSonomy BuRST Feed for /tag/frequency2008-11-18T10:52:32+01:00http://www.bibsonomy.org/bibtex/2a0ab44e3609d242677fbb07c0e049730/juverjuver2008-11-05T17:24:03+01:00information_science scientific Lotka's_law frequency distribution Lotka wismasys0809 productivity <span style="color:#555555;">Alfred J. <a href="http://www.bibsonomy.org/author/Lotka">Lotka</a> </span>(<em>1926</em>)Wed Nov 05 17:24:03 CET 2008The frequency distribution of scientific productivity1926information_science scientific Lotka's_law frequency distribution Lotka wismasys0809 productivity In 1926, Alfred Lotka examined the frequency distribution of scientific productivity of chemists and physicists. After analyzing the number of publications of chemists listed in Chemical Abstracts 1907-1916 and the contributions of physicists listed in Auerbach's Geschi-chtstafeln der Physik, he observed that the number of persons making n contributions is about 1/n2 of those making one and the proportion of all contributors that make a single contribution is about 60%. Recently, investigators studying the applicability of Lotka's law to the humanities and to map librarianship may have misinterpreted Lotka's law and have concluded erroneously that the law applies to these fields. Corrected calculations indicate that Lotka's law does not apply. http://www.bibsonomy.org/bibtex/2a0ab44e3609d242677fbb07c0e049730/roborobo2008-11-05T17:04:22+01:00scientific frequency distribution wismasys0809 productivity <span style="color:#555555;">Alfred J. <a href="http://www.bibsonomy.org/author/Lotka">Lotka</a> </span>(<em>1926</em>)Wed Nov 05 17:04:22 CET 2008The frequency distribution of scientific productivity1926scientific frequency distribution wismasys0809 productivity In 1926, Alfred Lotka examined the frequency distribution of scientific productivity of chemists and physicists. After analyzing the number of publications of chemists listed in Chemical Abstracts 1907-1916 and the contributions of physicists listed in Auerbach's Geschi-chtstafeln der Physik, he observed that the number of persons making n contributions is about 1/n2 of those making one and the proportion of all contributors that make a single contribution is about 60%. Recently, investigators studying the applicability of Lotka's law to the humanities and to map librarianship may have misinterpreted Lotka's law and have concluded erroneously that the law applies to these fields. Corrected calculations indicate that Lotka's law does not apply. http://www.bibsonomy.org/bibtex/2a0ab44e3609d242677fbb07c0e049730/olhaholhah2008-11-02T22:42:23+01:00scientific frequency distribution wismasys0809 <span style="color:#555555;">Alfred J. <a href="http://www.bibsonomy.org/author/Lotka">Lotka</a> </span>(<em>1926</em>)Sun Nov 02 22:42:23 CET 2008The frequency distribution of scientific productivity1926scientific frequency distribution wismasys0809 In 1926, Alfred Lotka examined the frequency distribution of scientific productivity of chemists and physicists. After analyzing the number of publications of chemists listed in Chemical Abstracts 1907-1916 and the contributions of physicists listed in Auerbach's Geschi-chtstafeln der Physik, he observed that the number of persons making n contributions is about 1/n2 of those making one and the proportion of all contributors that make a single contribution is about 60%. Recently, investigators studying the applicability of Lotka's law to the humanities and to map librarianship may have misinterpreted Lotka's law and have concluded erroneously that the law applies to these fields. Corrected calculations indicate that Lotka's law does not apply. http://www.bibsonomy.org/bibtex/2a0ab44e3609d242677fbb07c0e049730/p.maghferatp.maghferat2008-10-29T18:17:28+01:00scientific frequency distribution wismasys0809 <span style="color:#555555;">Alfred J. <a href="http://www.bibsonomy.org/author/Lotka">Lotka</a> </span>(<em>1926</em>)Wed Oct 29 18:17:28 CET 2008The frequency distribution of scientific productivity1926scientific frequency distribution wismasys0809 In 1926, Alfred Lotka examined the frequency distribution of scientific productivity of chemists and physicists. After analyzing the number of publications of chemists listed in Chemical Abstracts 1907-1916 and the contributions of physicists listed in Auerbach's Geschi-chtstafeln der Physik, he observed that the number of persons making n contributions is about 1/n2 of those making one and the proportion of all contributors that make a single contribution is about 60%. Recently, investigators studying the applicability of Lotka's law to the humanities and to map librarianship may have misinterpreted Lotka's law and have concluded erroneously that the law applies to these fields. Corrected calculations indicate that Lotka's law does not apply. http://www.bibsonomy.org/bibtex/2a0ab44e3609d242677fbb07c0e049730/saschasascha2008-10-29T18:10:49+01:00scientific frequency distribution wismasys0809 productivity <span style="color:#555555;">Alfred J. <a href="http://www.bibsonomy.org/author/Lotka">Lotka</a> </span>(<em>1926</em>)Wed Oct 29 18:10:49 CET 2008The frequency distribution of scientific productivity1926scientific frequency distribution wismasys0809 productivity In 1926, Alfred Lotka examined the frequency distribution of scientific productivity of chemists and physicists. After analyzing the number of publications of chemists listed in Chemical Abstracts 1907-1916 and the contributions of physicists listed in Auerbach's Geschi-chtstafeln der Physik, he observed that the number of persons making n contributions is about 1/n2 of those making one and the proportion of all contributors that make a single contribution is about 60%. Recently, investigators studying the applicability of Lotka's law to the humanities and to map librarianship may have misinterpreted Lotka's law and have concluded erroneously that the law applies to these fields. Corrected calculations indicate that Lotka's law does not apply. http://www.bibsonomy.org/bibtex/25b0455bdb78d5fc8fe25b9711bd22ac7/cwillemscwillems2008-10-12T19:37:07+02:00cinearchiv Detection Fundamental Frequency Pitch <span style="color:#555555;">N. <a href="http://www.bibsonomy.org/author/Patel">Patel</a> und L. <a href="http://www.bibsonomy.org/author/Sethi">Sethi</a> </span><em>Proceedings of the SPIE on Storage and Retrieval for Still Image and Video Databases, </em><em>2670, </em><em>Seite373--384. </em><em>San Jose, USA, </em>(<em>1996</em>)Sun Oct 12 19:37:07 CEST 2008San Jose, USAProceedings of the SPIE on Storage and Retrieval for Still Image and Video Databases373--384Audio characterization for video indexing26701996cinearchiv Detection Fundamental Frequency Pitch CCNLab BibTeXhttp://www.bibsonomy.org/bibtex/294125ba5c0f70d51bb6f81f1416f9726/brian.mingusbrian.mingus2008-09-16T23:39:07+02:00somatosensory cortex, cumulative brainstem the frequency poststimulus trigeminal medial interpolaris of time posterior complex, histogram, receptive ventral CCP field, spinal thalamus, JRR, pars nucleus <span style="color:#555555;">B. M. <a href="http://www.bibsonomy.org/author/Faggin">Faggin</a> und K. T. <a href="http://www.bibsonomy.org/author/Nguyen">Nguyen</a> und M. A. L. <a href="http://www.bibsonomy.org/author/Nicolelis">Nicolelis</a> </span><em>Proceedings of the National Academy of Science</em>(<em>1997</em>)Tue Sep 16 23:39:07 CEST 2008Proceedings of the National Academy of Science9428-9433Immediate and simultaneous sensory reorganization at cortical and subcortical levels of the somatosensory system941997somatosensory cortex, cumulative brainstem the frequency poststimulus trigeminal medial interpolaris of time posterior complex, histogram, receptive ventral CCP field, spinal thalamus, JRR, pars nucleus http://www.bibsonomy.org/bibtex/28a75579403958b0aec058b586b7c3333/tmalsburgtmalsburg2008-07-09T16:31:08+02:00agoofacquisition reading mentallexicon frequency review <span style="color:#555555;">R. <a href="http://www.bibsonomy.org/author/Johnston">Johnston</a> und C. <a href="http://www.bibsonomy.org/author/Barry">Barry</a> </span><em>Visual Cognition</em><em>13(7-8):789--845</em>(<em>2006</em>)Wed Jul 09 16:31:08 CEST 2008Visual Cognition7-8789--845{Age of acquisition and lexical processing}132006agoofacquisition reading mentallexicon frequency review http://www.bibsonomy.org/bibtex/22e4e2e991fca2a0e748902a096857f46/brazovayeyebrazovayeye2008-06-19T17:35:00+02:00Trading analysis, Exchange programming, genetic rate, Technical frequency algorithms, High rule, <span style="color:#555555;">Christopher J. <a href="http://www.bibsonomy.org/author/Neely">Neely</a> und Paul A. <a href="http://www.bibsonomy.org/author/Weller">Weller</a> </span><em>Journal of International Money and Finance</em><em>22(2):223--237</em><em>April2003. </em>Thu Jun 19 17:35:00 CEST 2008Journal of International Money and FinanceApril2223--237Intraday technical trading in the foreign exchange market222003Trading analysis, Exchange programming, genetic rate, Technical frequency algorithms, High rule, This paper examines the out-of-sample performance of intraday technical trading strategies selected using two methodologies, a genetic program and an optimized linear forecasting model. When realistic transaction costs and trading hours are taken into account, we find no evidence of excess returns to the trading rules derived with either methodology. Thus, our results are consistent with market efficiency. We do find, however, that the trading rules discover some remarkably stable patterns in the data.Monitoring crack length in concrete beams using resonance measurementshttp://www.bibsonomy.org/bibtex/269eaf656ca9ea06f004350707d6e7f4f/thulefoththulefoth2008-05-17T01:00:25+02:00resonance nondestructive crack length vibration beam frequency finite_element concrete <span style="color:#555555;">K. V. <a href="http://www.bibsonomy.org/author/{Subramaniam}">Subramaniam</a> und G. <a href="http://www.bibsonomy.org/author/{Goldstein}">Goldstein</a> und J. S. <a href="http://www.bibsonomy.org/author/{Popovics}">Popovics</a> und S. P. <a href="http://www.bibsonomy.org/author/{Shah}">Shah</a> </span><em>Proc. SPIE Vol. 3586, p. 129-136, Nondestructive Evaluation of Aging Aircraft, Airports, and Aerospace Hardware III, Ajit K. Mal; Ed., </em><em>Volume3586vonPresented at the Society of Photo-Optical Instrumentation Engineers (SPIE) Conference, </em><em>Seite129-136. </em><em>January1999. </em>Sat May 17 01:00:25 CEST 2008Proc. SPIE Vol. 3586, p. 129-136, Nondestructive Evaluation of Aging Aircraft, Airports, and Aerospace Hardware III, Ajit K. Mal; Ed.January129-136Presented at the Society of Photo-Optical Instrumentation Engineers (SPIE) Conference{Monitoring crack length in concrete beams using resonance measurements}35861999resonance nondestructive crack length vibration beam frequency finite_element concrete A nondestructive evaluation technique for monitoring damage due to crack growth in concrete beams is presented in this paper. The technique is based on monitoring the resonant frequencies of vibration. An introduction to the concepts of vibrational modes in beams is detailed first followed by a description of the experimental procedure for resonance frequency measurement. The result of a finite element (FE) analysis that is performed to identify the different modes of vibration of the beam specimen, are then presented. The resonance frequencies determined by the FE analysis are shown to match closely with the experimental values. A notch is introduced in the specimen and the effect of notch length on the resonant frequencies is studied by varying the notch depth. Experimental results are compared with the result of FE simulation of the beam with different notch lengths. The influence of a real crack on the frequencies of the vibrational modes is also studied by loading a specimen in a three-point bending configuration and propagating a crack in a controlled manner using a closed-loop testing machine. Analysis of the obtained data is performed to evaluate the response of the different vibrational modes of the concrete beam specimen to varying crack and notch lengths. Frequencies of the vibrational modes decrease consistently with increasing crack and notch lengths. There is a larger decrease associated with increasing notch length. Resonance frequencies are shown to be sensitive to crack and notch growth in concrete beams and can be used to effectively monitor the decrease in structural stiffness due to crack progress progression.http://www.bibsonomy.org/bibtex/2700caf8b887bd98efa06509fa8f290b3/smichasmicha2008-04-29T08:06:25+02:00data frequency High <span style="color:#555555;">Claudio <a href="http://www.bibsonomy.org/author/Morana">Morana</a> und Andrea <a href="http://www.bibsonomy.org/author/Beltratti">Beltratti</a> </span><em>Journal of International Financial Markets, Institutions and Money</em><em>10(3-4):349--362</em><em>Dec2000. </em>Tue Apr 29 08:06:25 CEST 2008Journal of International Financial Markets, Institutions and MoneyDec3-4349--362Central bank interventions and exchange rates: an analysis with high frequency data102000data frequency High http://www.bibsonomy.org/bibtex/23b4e89fa96bb690bade308860d3fd6d7/smichasmicha2008-04-28T14:02:50+02:00Consumption frequency <span style="color:#555555;">Wanki <a href="http://www.bibsonomy.org/author/Moon">Moon</a> und Wojciech J. <a href="http://www.bibsonomy.org/author/Florkowski">Florkowski</a> und Larry R. <a href="http://www.bibsonomy.org/author/Beuchat">Beuchat</a> und Anna V. A. <a href="http://www.bibsonomy.org/author/Resurreccion">Resurreccion</a> und Pavlina <a href="http://www.bibsonomy.org/author/Paraskova">Paraskova</a> und Jordan <a href="http://www.bibsonomy.org/author/Jordanov">Jordanov</a> und Manjeet S. <a href="http://www.bibsonomy.org/author/Chinnan">Chinnan</a> </span><em>Journal of Policy Modeling</em><em>24(7-8):621--637</em><em>Nov2002. </em>Mon Apr 28 14:02:50 CEST 2008Journal of Policy ModelingNov7-8621--637Food intake patterns of the unemployed and pensioners in Bulgaria242002Consumption frequency http://www.bibsonomy.org/bibtex/28dcc06c91b1dec31325535bfa60d4dec/smichasmicha2008-04-23T22:05:04+02:00estimation frequency Two-dimensional <span style="color:#555555;">Yi <a href="http://www.bibsonomy.org/author/Zhou">Zhou</a> und Da-zheng <a href="http://www.bibsonomy.org/author/Feng">Feng</a> und Jian-qiang <a href="http://www.bibsonomy.org/author/Liu">Liu</a> </span><em>Signal Processing</em><em>87(1):1--12</em><em>Jan2007. </em>Wed Apr 23 22:05:04 CEST 2008Signal ProcessingJan11--12A novel algorithm for two-dimensional frequency estimation872007estimation frequency Two-dimensional http://www.bibsonomy.org/bibtex/29a9a005298911af7ca7d1eefeb4602b4/smichasmicha2008-04-23T22:05:04+02:002-D estimation Frequency <span style="color:#555555;">Howard Hua <a href="http://www.bibsonomy.org/author/Yang">Yang</a> und Yingbo <a href="http://www.bibsonomy.org/author/Hua">Hua</a> </span><em>Signal Processing</em><em>58(2):215--221</em><em>Apr1997. </em>Wed Apr 23 22:05:04 CEST 2008Signal ProcessingApr2215--221Performance comparison of two methods for 2-D frequency estimation in both medium and high SNR cases5819972-D estimation Frequency http://www.bibsonomy.org/bibtex/274539cf42377e6f6d1021d32a06c3cc9/smichasmicha2008-04-23T22:05:04+02:00estimation Frequency <span style="color:#555555;">Robert C. <a href="http://www.bibsonomy.org/author/Williamson">Williamson</a> und Ben <a href="http://www.bibsonomy.org/author/James">James</a> und Brian D. O. <a href="http://www.bibsonomy.org/author/Anderson">Anderson</a> und Peter J. <a href="http://www.bibsonomy.org/author/Kootsookos">Kootsookos</a> </span><em>Signal Processing</em><em>37(3):309--331</em><em>Jun1994. </em>Wed Apr 23 22:05:04 CEST 2008Signal ProcessingJun3309--331Threshold effects in multiharmonic maximum likelihood frequency estimation371994estimation Frequency http://www.bibsonomy.org/bibtex/29d5d0a9737ef95685e54b7ac0c9ce4dd/smichasmicha2008-04-23T22:05:04+02:00estimation Frequency <span style="color:#555555;">Binwei <a href="http://www.bibsonomy.org/author/Weng">Weng</a> und Kenneth E. <a href="http://www.bibsonomy.org/author/Barner">Barner</a> </span><em>Signal Processing</em><em>86(7):1477--1487</em><em>Jul2006. </em>Wed Apr 23 22:05:04 CEST 2008Signal ProcessingJul71477--1487TR-MUSIC--A robust frequency estimation method in impulsive noise862006estimation Frequency http://www.bibsonomy.org/bibtex/29353d843e9eb47947ecb35803660e6bb/smichasmicha2008-04-23T22:05:04+02:00estimation Frequency <span style="color:#555555;">Zhi <a href="http://www.bibsonomy.org/author/Wang">Wang</a> und Saman S. <a href="http://www.bibsonomy.org/author/Abeysekera">Abeysekera</a> </span><em>Signal Processing</em><em>86(11):3371--3387</em><em>Nov2006. </em>Wed Apr 23 22:05:04 CEST 2008Signal ProcessingNov113371--3387Frequency estimation via multiple lags of correlations in the presence of broadband colored noise862006estimation Frequency http://www.bibsonomy.org/bibtex/26c6dbfa8433a0f6a1ea00fa19bdcaaa8/smichasmicha2008-04-23T22:05:04+02:00frequency Instantaneous <span style="color:#555555;">V. <a href="http://www.bibsonomy.org/author/Valeau">Valeau</a> und J. C. <a href="http://www.bibsonomy.org/author/Vali{\`e}re">Vali`ere</a> und C. <a href="http://www.bibsonomy.org/author/Mellet">Mellet</a> </span><em>Signal Processing</em><em>84(7):1147--1165</em><em>Jul2004. </em>Wed Apr 23 22:05:04 CEST 2008Signal ProcessingJul71147--1165Instantaneous frequency tracking of a sinusoidally frequency-modulated signal with low modulation index: application to laser measurements in acoustics842004frequency Instantaneous http://www.bibsonomy.org/bibtex/20523a1cc306552c03f6aa80ace79104f/smichasmicha2008-04-23T22:05:04+02:00estimation Sinusoidal frequency <span style="color:#555555;">Petr <a href="http://www.bibsonomy.org/author/Tichavsk{\&#039;y}">Tichavsk'y</a> und Peter <a href="http://www.bibsonomy.org/author/H{\&#034;a}ndel">H&#228;ndel</a> </span><em>Signal Processing</em><em>58(2):117--129</em><em>Apr1997. </em>Wed Apr 23 22:05:04 CEST 2008Signal ProcessingApr2117--129Recursive estimation of frequencies and frequency rates of multiple cisoids in noise581997estimation Sinusoidal frequency http://www.bibsonomy.org/bibtex/22edd5a491e2cca30170e9777ae1b14b8/smichasmicha2008-04-23T22:05:04+02:00estimation Frequency <span style="color:#555555;">Petre <a href="http://www.bibsonomy.org/author/Stoica">Stoica</a> und Anders E. <a href="http://www.bibsonomy.org/author/Nordsj{\&#034;o}">Nordsj&#246;</a> </span><em>Signal Processing</em><em>63(3):211--220</em><em>Dec1997. </em>Wed Apr 23 22:05:04 CEST 2008Signal ProcessingDec3211--220Subspace-based frequency estimation in the presence of moving-average noise using decimation631997estimation Frequency