DATA ANALYSIS AND DISCUSSION
... the study, the data collection method, instruments as well as process of data collection and data analysis IV Data analysis and discussion This focuses on presenting, analyzing and discussing ... the data obtained from the survey questionnaires 28 CHAPTER IV- DATA ANALYSIS AND DISCUSSION 4.1.Questionnaires 4.1.1 Data analysis of the students’ experiment questionnaires 4.1.1.1 Data analysis ... methods of data collection and analysis in order to maximize its vavidity and reliability This claim would be subtaintiated in this as the participants, the instruments as well as the data analysis...
Ngày tải lên: 12/04/2013, 16:19
... nonderogatory accounts or minor delinquencies; and (4) the reporting of data on collection agency and public record accounts is possibly inconsistent and inquiry data is incomplete Missing credit limits ... status and outstandthemselves Collection agencies report information on ing balance shortly before it is forwarded to the credit accounts in collection, including many non-credit-related reporting ... their own collections rather than day before the payment using collection agencies If these creditors report to the credit reporting companies, such collections will appear Although credit reporting...
Ngày tải lên: 22/03/2014, 18:20
... kinases JAK1 and tyrosine kinase (TYK2) are activated in response to ligand binding to the receptor, and these kinases phosphorylate signal transducers and activators of transcription STAT1 and STAT2 ... necessary and sufficient to reproduce the observed kinetic data (Fig 3C) Hence, our analysis identified IRF9 as crucial for both rapid and efficient IFNa-mediated signal transduction, and suggests ... Hansjorg Hauser and Didier ¨ ´ ´ ´ Trono (Ecole polytechnique federale de Lausanne EPFL, Lab of virology and genetics, Switzerland) for 4752 the supplied reagents We thank Sandra Manthey and Maria...
Ngày tải lên: 23/03/2014, 03:20
Microsoft Excel 2010: Data Analysis and Business Modeling doc
... 381 45 Summarizing Data with Database Statistical Functions 387 46 Filtering Data and Removing Duplicates 395 47 Consolidating Data ... to Random Variables 509 63 The Binomial, Hypergeometric, and Negative Binomial Random Variables 515 64 The Poisson and Exponential Random ... Lange of Eli Lilly, Pat Keating and Doug Hoppe of Cisco Systems, and Dennis Fuller of the U.S Army also helped me refine my thoughts on teaching data analysis and modeling with Excel I was blessed...
Ngày tải lên: 23/03/2014, 04:20
Implementing Splunk: Big Data Reporting and Development for Operational Intelligence pot
... Implementing Splunk: Big Data Reporting and Development for Operational Intelligence Learn to transform your machine data into valuable IT and business insights with this comprehensive and practical tutorial ... Splunk from the command line Querying Splunk via REST Writing commands When not to write a command When to write a command Configuring commands Adding fields Manipulating data [ viii ] www.it-ebooks.info ... read and search across Packt's entire library of books. Why Subscribe? • Fully searchable across every book published by Packt • Copy and paste, print and bookmark content • On demand and accessible...
Ngày tải lên: 30/03/2014, 05:20
data analysis and visualization in genomics and proteomics - francisco azuaje
... interaction database and analysis system It holds interaction data, maintains annotation standards and provides search and analysis software (Hermjakob et al., 2004b) There are over 27 000 proteins and ... fundamental Data Analysis and Visualization in Genomics and Proteomics Edited by Francisco Azuaje and Joaquin Dopazo # 2005 John Wiley & Sons, Ltd., ISBN 0-470-09439-7 INTEGRATIVE DATA ANALYSIS AND VISUALIZATION ... (a) how data analysis techniques can facilitate more comprehensive, user-friendly data visualization tasks and (b) how data visualization methods may make data analysis a more meaningful and biologically...
Ngày tải lên: 08/04/2014, 12:45
private real estate investment data analysis and decision making
... Estate Investment Data Analysis and Decision Making Private Real Estate Investment Data Analysis and Decision Making Roger J Brown, PhD Director of Research Real Estate and Land Use Institute ... decision-making for consumers and researchers in market economies of any country interested in land use and real estate investment Empirical risk analysis improves the understanding of markets in general ... this regard Each day thousands of bright, entrepreneurial souls arise and make dramatic contributions to our built environment, heretofore without data or database analysis techniques This book...
Ngày tải lên: 01/06/2014, 11:30
Power Quality Harmonics Analysis and Real Measurements Data Part 15 doc
... Harmonics Analysis and Real Measurements Data Crectifier and Cac_cable are the capacitive couplings of the rectifier side and underground cable, respectively, with ground Rac_cable and Lac_cable ... between wind farm electric circuit and ground and (b) FFT analysis of the ground current obtained 274 Power Quality Harmonics Analysis and Real Measurements Data 800 Capacitive cooupling model ... phase voltage waveform and (b) FFT analysis of the waveform obtained, at node 276 Power Quality Harmonics Analysis and Real Measurements Data Although voltage waveform meets standard regulations,...
Ngày tải lên: 18/06/2014, 22:20
Power Quality Harmonics Analysis and Real Measurements Data Part 1 pdf
... Identification and Measurements Soliman Abdelhady Soliman and Ahmad Mohammad Alkandari Chapter On the Reliability of Real Measurement Data for Assessing Power Quality Disturbances 69 Alexandre Brandao ... to recorded data and used to determine which data are to be used for further processing, and which data should be discarded Chapter presents the problems of voltage transformers and voltage harmonic ... Power Quality Harmonics Analysis and Real Measurements Data Sources and problems of harmonics [2] Harmonic sources are divided into two categories: Established and known New and Future A review of...
Ngày tải lên: 19/06/2014, 08:20
Power Quality Harmonics Analysis and Real Measurements Data Part 2 docx
... and varied These parameters are the standard 14 Power Quality Harmonics Analysis and Real Measurements Data deviation of the noise, the number of samples, and the sampling frequency A Gaussiandistributed ... and discrete Fourier transform (DFT) The data used in this study are real data from a three-phase six pulse converter The three techniques are thoroughly analyzed and compared in terms of standard ... data window at each sampling interval and the oldest sample is discarded The new [A]+ for the latest m samples is calculated and the estimates of [] are 12 Power Quality Harmonics Analysis and...
Ngày tải lên: 19/06/2014, 08:20
Power Quality Harmonics Analysis and Real Measurements Data Part 3 ppt
... 32 Power Quality Harmonics Analysis and Real Measurements Data Fig 27 Gain of the proposed filter for X1 and Y1 using models and Fig 28 Estimated magnitudes of 60 Hz and third harmonic for frequency ... current and voltage waveforms This package has been tested on simulated data sets, as well as on an actual Electric Power Systems Harmonics - Identification and Measurements 31 recorded data set and ... transients, and harmonics of less than 60 Hz (sub-harmonics) The waveform was originally sampled at a 118 ms time 34 Power Quality Harmonics Analysis and Real Measurements Data interval and a sampling...
Ngày tải lên: 19/06/2014, 08:20
Power Quality Harmonics Analysis and Real Measurements Data Part 4 docx
... Systems Research 38 (1997) 113-123 66 Power Quality Harmonics Analysis and Real Measurements Data S.A Soliman, I Helal, and A M Al-Kandari, Fuzzy linear regression for measurement of harmonic components ... McGraw Hill, 1995 R G Brown, Introduction to random signal analysis and Kalman filtering, New York: John Wiley and Sons, 1983 G F Franklin, J D Powel and M L Workman, Digital control of dynamic ... 2011 68 Power Quality Harmonics Analysis and Real Measurements Data Gary W Chang, Shin-Kuan Chen, Huai-Jhe Su, and Ping-Kuei Wang,” Accurate Assessment of Harmonic and Interharmonic Currents Generated...
Ngày tải lên: 19/06/2014, 08:20
Power Quality Harmonics Analysis and Real Measurements Data Part 5 doc
... determination problem and sections and present two case studies Section presents general conclusions and recommendations Data reliability criteria This section is intended to present the main data reliability ... resistance data showing confidence intervals 74 Power Quality Harmonics Analysis and Real Measurements Data 2.5 Quantization error Quantization refers to the digitalization step of the data acquisition ... 228 Hz and 348 Hz of this case study are one pair, and interharmonics 264 Hz and 384 Hz are another pair From (12), it can be estimated that the drives’ frequencies are 48 Hz and 54 Hz, and that...
Ngày tải lên: 19/06/2014, 08:20
Power Quality Harmonics Analysis and Real Measurements Data Part 6 pptx
... Quality Harmonics Analysis and Real Measurements Data Wideband analysis of VT transfer characteristic requires taking into account also external impedances of measured voltage source and VT load Therefore, ... Harmonics Analysis and Real Measurements Data Simplified representation of VT magnetizing and leakage impedances is presented in Fig 13, where characteristic resonance frequencies fr1, fr2, fr3 and ... is predominant Band Band Band Zmag Zleak fr1 fr3 fr2 log f Fig 12 Simplified representation of VT magnetizing and leakage impedance-frequency characteristics The developed wideband circuit model...
Ngày tải lên: 19/06/2014, 08:20
Power Quality Harmonics Analysis and Real Measurements Data Part 7 pdf
... stages 1,2 and or 5,6 and The transistors conduct for the time of stages and 5, the freewheeling diodes – for the time of stages 3, 4, and 8, and the rectifier diodes – for the time of stages and The ... Quality Harmonics Analysis and Real Measurements Data Stages and correspond to the commutations in the inverter 0 0 The commutations in the rectifier begin in p M1 or p M5 and end in p M or p ... limited within the boundary curves А and L3 or L4 The bigger the capacity of the capacitors 124 Power Quality Harmonics Analysis and Real Measurements Data СS and С0, the smaller this area is However,...
Ngày tải lên: 19/06/2014, 08:20
Power Quality Harmonics Analysis and Real Measurements Data Part 8 doc
... the graphics P1, P2 and P3 mean input powers and T1, T2 and T3 temperatures, respectively 3.1 Single-phase uncontrolled bridge rectifier The waveforms of the input powers and junction temperatures ... been done both for the firing angle values of 60, 90 and 1200 el., and load inductance values of 0.1, 10 and 50mH The results are shown in Fig 20 and Fig 21 750V P1 500V P2 250V P3 0V 0s 20ms V(MULT1:OUT) ... Harmonics Analysis and Real Measurements Data 60 50 T[ºC] 40 30 20 10 0 100 200 300 400 500 600 700 t[s] 60el.sim 90el.sim 120el.sim 60el.exp 90el.exp 120el.exp Fig 20 Comparison between simulation and...
Ngày tải lên: 19/06/2014, 08:20
Power Quality Harmonics Analysis and Real Measurements Data Part 9 pptx
... But with the development of power system, more and more highpower nonlinear loads are connected to higher voltage grid and the demand of high voltage and high capacity keeps being enlarged The paper ... principle and the theory about the high power UPQC, some fundamental knowledge about harmonic and harmonic elimination equipments are list below 154 Power Quality Harmonics Analysis and Real ... in different forms and form many types of HAPF Because of its low cost, HAPF attracts more and more eyes and has been developing very quickly 2.3 UPQC: Combined shunt APF and series APF Unified...
Ngày tải lên: 19/06/2014, 08:20
Power Quality Harmonics Analysis and Real Measurements Data Part 10 docx
... in (Task 180 Power Quality Harmonics Analysis and Real Measurements Data force on Harmonic Modeling and Simulation, 2003), and |ZP1| and λP are the magnitude and the displacement power factor of ... systems are • Parallel resonance: kr, a = 4.94 and 7.05 (τ1 = and dC = 1.0 and 0.5, respectively) and kr, a = 5.13 and 7.33 (τ1 = 6.0% and dC = 1.0 and 0.5, respectively) Characterization of Harmonic ... Power Systems 187 Series resonance: kr, a = 4.95 and 7.03 (τ1 = and dC = 1.0 and 0.5, respectively) and kr, a = 6.16 and 8.74 (τ1 = 7.9% and dC = 1.0 and 0.5, respectively) From these results, it...
Ngày tải lên: 19/06/2014, 08:20
Power Quality Harmonics Analysis and Real Measurements Data Part 11 pptx
... 190 Power Quality Harmonics Analysis and Real Measurements Data corresponding to the above data are rL = 27.4, λL = and 0.95 (Cases and 2, respectively) and τ1 = 6.1.2 Experimental measurements ... 0, dC = and the maximum traction load (i.e., SL = 75 MVA), the ratio rL = RL/XS = λL·SS/SL is 145.08 and 9.92 and the resonance is located at harmonics kr, a = 21.6 and 6.0 on the French and UK ... medical and hospital devices 196 Power Quality Harmonics Analysis and Real Measurements Data In this chapter we review our novel approach for studying the effect of switch mode devices and present...
Ngày tải lên: 19/06/2014, 08:20
Power Quality Harmonics Analysis and Real Measurements Data Part 12 docx
... This standard is designed to protect both businesses and utilities, many other standards are also available and set limits for such harmonic penetration Harmonic analysis, load flow analysis, and ... buildings and monitor and check harmonics at different loading processing modes and times Recommendation and findings are to be clearly drawn out of results and stressing the mode of operations and ... neighbour’s facility and vice versa Electric utilities have recognized this problem and are adopting standards, like the Institute of Electrical and Electronics Engineers (IEEE) Standard 519 which...
Ngày tải lên: 19/06/2014, 08:20