evaluating real data visualizations
designing data visualizations
Ngày tải lên :
31/05/2014, 00:17
... Designing Data Visualizations Noah Iliinsky and Julie Steele Beijing • Cambridge • Farnham • Köln • Sebastopol • Tokyo Designing Data Visualizations by Noah Iliinsky and ... the data, which can be encoded separately, with a different visual property Data visualization: Visualizations that are algorithmically generated and can be easily regenerated with different data, ... Exploratory visualization: Data visualizations that are used by the designer for self-informative purposes to discover patterns, trends, or sub-problems in a dataset Exploratory visualizations typically...
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oracle database 11g release 2 high availability elektronisk ressurs maximize your availability with grid infrastructure, oracle real application clusters, and oracle data guard
Ngày tải lên :
31/05/2014, 01:09
... apply) ORACLE DATABASE o 01 Oracle Database 11g o 02 Oracle Database 10 g o 03 Oracle9 i Database o 04 Oracle Embedded Database (Oracle Lite, Times Ten, Berkeley DB) o 05 Other Oracle Database Release ... feature: Oracle Data Guard A complete disaster recovery solution, Oracle Data Guard provides a rich toolkit for using a database’s existing architecture to mirror a complete database to another ... the days of a database backup being as simple as an OS copy of a few gigabytes’ worth of files while the database was shut down But in the real world, with terabytes’ worth of data, OS file copies...
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private real estate investment data analysis and decision making
Ngày tải lên :
01/06/2014, 11:30
... Private Real 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 ... a database as three comparable sales, real estate investors today suddenly find that they have access to plentiful data Large data sets light the way to a host of objective ways of viewing real ... can be displayed as actual data points and the economic topographical map will represent a real world situation Data represents reality, and there will be times when reality conflicts with theory...
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Power Quality Harmonics Analysis and Real Measurements Data Part 15 doc
Ngày tải lên :
18/06/2014, 22:20
... 270 Power Quality Harmonics Analysis and Real Measurements Data Crectifier and Cac_cable are the capacitive couplings of the rectifier side and underground ... wind farm configuration, as shown in Fig 11 272 Power Quality Harmonics Analysis and Real Measurements Data 0.050 Voltage (kV) 0.025 0.000 -0.025 -0.050 2.000 2.005 2.010 Time (s) 2.015 2.020 ... FFT analysis of the ground current obtained 274 Power Quality Harmonics Analysis and Real Measurements Data 800 Capacitive cooupling model |Z| 700 Simplified model |Z| Impedance |Z| () 600...
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Power Quality Harmonics Analysis and Real Measurements Data Part 1 pdf
Ngày tải lên :
19/06/2014, 08:20
... the correct testing and working process from the obtained data is not properly assured at every instant; this entails processing the real data correctly To ensure a precise measurement of the electrical ... poor reliability of the real measured data used for several applications dealing with power quality disturbances, and proposes a set of reliability criteria to determine the data quality, which can ... data quality, which can be directly applied 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...
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Power Quality Harmonics Analysis and Real Measurements Data Part 2 docx
Ngày tải lên :
19/06/2014, 08:20
... algorithms are used in this study; LES, LAV, 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 ... for 10% missing data (sampling frequency = 1620 Hz): (a) no noise; (b) 0.1 standard deviation added white Gaussian noise 20 Power Quality Harmonics Analysis and Real Measurements Data Figure 12 ... 10 Power Quality Harmonics Analysis and Real Measurements Data can be assumed that only two modes of equation (21) are considered, then the error...
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Power Quality Harmonics Analysis and Real Measurements Data Part 3 ppt
Ngày tải lên :
19/06/2014, 08:20
... Harmonics Analysis and Real Measurements Data Fig 40 Effects of bad data on the estimated fundamental voltage Actual recorded data In this Section the actual recorded data set that is available ... results obtained using the simulated data set of Section 2, and in the second Subsection the actual recorded data set is used Simulated data The simulated data set of Section 4.3 has been used ... not contaminated with bad data The DLAV is able to identify and correct bad data, whereas the KF algorithm needs prefiltering to identify and eliminate this bad data It has been shown that...
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Power Quality Harmonics Analysis and Real Measurements Data Part 4 docx
Ngày tải lên :
19/06/2014, 08:20
... 50 Power Quality Harmonics Analysis and Real Measurements Data The forward transformation matrix at harmonic order n; n=1,2, , N, N is the total ... nt (59) x a Vam cos a (60) where we define 52 Power Quality Harmonics Analysis and Real Measurements Data x a Vam sin a (61) As stated earlier in step m samples are available for a harmonic ... independent, steady state harmonics identification 54 Power Quality Harmonics Analysis and Real Measurements Data Fuzzy harmonic components identification In this section, we present a fuzzy Kalman...
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Power Quality Harmonics Analysis and Real Measurements Data Part 5 doc
Ngày tải lên :
19/06/2014, 08:20
... 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 ... On the Reliability of Real Measurement Data for Assessing Power Quality Disturbances 73 and 0.0905 (ohms) Those values that are numerically distant from the rest of the data (shown inside the ... A/D conversion introduces quantization error The data collected are in the form of digital values while the actual data are in analog form So the data are digitalized with an A/D converter The...
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Power Quality Harmonics Analysis and Real Measurements Data Part 6 pptx
Ngày tải lên :
19/06/2014, 08:20
... 90 Power Quality Harmonics Analysis and Real Measurements Data of metering apparatus or protection relays extensively used in power system VT are ... 2 LHPF (1) f high f LPF RLPF 2 LLPF (2) 92 Power Quality Harmonics Analysis and Real Measurements Data Wideband analysis of VT transfer characteristic requires taking into account also ... 1995, Islam at al., 1997, Luszcz, 2004a, 2004b, 94 Power Quality Harmonics Analysis and Real Measurements Data Mohamed at al., 2008) Consequences of parasitic capacitances are especially significant...
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Power Quality Harmonics Analysis and Real Measurements Data Part 7 pdf
Ngày tải lên :
19/06/2014, 08:20
... the LCC resonant converter under consideration 112 Power Quality Harmonics Analysis and Real Measurements Data Modes of operation of the converter The circuit diagram of the LCC transistor resonant ... the resonant circuit; - Output voltage; 114 ′ I0 = Power Quality Harmonics Analysis and Real Measurements Data I0 k U d Z0 - Output current; ′ U Cm = U Cm U d - Maximum voltage of the capacitor ... currents at the main operation mode of the converter 116 Power Quality Harmonics Analysis and Real Measurements Data It has been proved in (Cheron, 1989; Bankov, 2009) that in the state plane (fig 3)...
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Power Quality Harmonics Analysis and Real Measurements Data Part 8 doc
Ngày tải lên :
19/06/2014, 08:20
... 130 Power Quality Harmonics Analysis and Real Measurements Data converters with controllable rectifying This can be explained by the similar mechanism ... charge Electrical conductivity R C F Q As 1/m 132 Power Quality Harmonics Analysis and Real Measurements Data Taking into account the thermal phenomena complexity for power semiconductor devices ... response is given by the following equation, (3) 134 Power Quality Harmonics Analysis and Real Measurements Data n 1T t nT nT T Ti Ti e Ti e Ti e...
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Power Quality Harmonics Analysis and Real Measurements Data Part 9 pptx
Ngày tải lên :
19/06/2014, 08:20
... 150 Power Quality Harmonics Analysis and Real Measurements Data identifying user risks; evaluating the right rated current; evaluating overload capacity without destructive failure ... harmonic elimination equipments are list below 154 Power Quality Harmonics Analysis and Real Measurements Data 2.1 Series active power filter In power system, voltage out from turbine is promising ... simplify the structure and reduce the cost of UPQC 156 Power Quality Harmonics Analysis and Real Measurements Data Utility Load ZS Inverter1 Inverter2 UPQ C Fig Unified Power Quality Conditioner An...
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Power Quality Harmonics Analysis and Real Measurements Data Part 10 docx
Ngày tải lên :
19/06/2014, 08:20
... 170 Power Quality Harmonics Analysis and Real Measurements Data Zhou, L.H., Fu, Q., Liu, C.S.(2009) Modeling and Control Analysis of a Hybrid Unified ... Qingzhu et al., 2010a, 2010b; Sainz & Riera, 172 Power Quality Harmonics Analysis and Real Measurements Data submitted for publication) In general, the values of the symmetrizing elements should ... railroad substation circuit c) Steinmetz circuit 174 Power Quality Harmonics Analysis and Real Measurements Data A B IB C Utility supply system IA IC Railroad substation RL XL R1 X1 X2 Fig Detailed...
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Power Quality Harmonics Analysis and Real Measurements Data Part 11 pptx
Ngày tải lên :
19/06/2014, 08:20
... 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 = ... (VSD) of 24 kVA rated power is used as a harmonic 192 Power Quality Harmonics Analysis and Real Measurements Data source A three-phase linear load with |ZP1| = 9.802 Ω and λP = 0.81 (load model LM1) ... Engineering, 2005, Vol 56, No 5-6, pp 156-161 194 Power Quality Harmonics Analysis and Real Measurements Data Qingzhu, W., Mingli, W., Jianye, C & Guipping, Z (2010) Optimal balancing of large...
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Power Quality Harmonics Analysis and Real Measurements Data Part 12 docx
Ngày tải lên :
19/06/2014, 08:20
... the third is a 180 Hertz waveform, and so on 212 Power Quality Harmonics Analysis and Real Measurements Data Harmonic distortion may or may not create a problem for own facility A plant may have ... and the normal operation The measurable data of interest for an electric arc furnace load include the following three phase quantities: supply voltage, real and reactive power, flicker, frequency ... all consumers’ feeder which is very costly[13] 214 Power Quality Harmonics Analysis and Real Measurements Data Brief steel plant system description The steel plant system consists of 49 buses and...
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Power Quality Harmonics Analysis and Real Measurements Data Part 13 potx
Ngày tải lên :
19/06/2014, 08:20
... 230 Power Quality Harmonics Analysis and Real Measurements Data Within a UPS it is rectifier that connects to the mains power supply and converts ... installation costs and downtime need to be planned for 232 Power Quality Harmonics Analysis and Real Measurements Data According to the above results obtained from this study, THD at point (29 %) of building ... Electronics Engineering, pp: 103-107, 3:2, 2008 234 Power Quality Harmonics Analysis and Real Measurements Data [32] Rana Abdul Jabbar Khan, “Power Quality and On-line Harmonics Monitoring in Power...
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Power Quality Harmonics Analysis and Real Measurements Data Part 14 docx
Ngày tải lên :
19/06/2014, 08:20
... 250 Power Quality Harmonics Analysis and Real Measurements Data Values MAX [A] AVG [A] MIN [A] PEAK+ [A] PEAK- [A] i1 102 90 90 150 -150 i3 102 90 ... of phase voltages in the cold state (MV Line) 252 Power Quality Harmonics Analysis and Real Measurements Data Fig 19 RMS values of the currents in the cold state (MV Line) Fig 20 THD of line currents ... currents in the intermediate state (MV Line) 254 Power Quality Harmonics Analysis and Real Measurements Data Fig 25 THD of line currents in the intermediate state (MV Line) In the intermediate...
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Private Real Estate Investment: Data Analysis and Decision Making_1 potx
Ngày tải lên :
20/06/2014, 18:20
... Private Real 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 ... a database as three comparable sales, real estate investors today suddenly find that they have access to plentiful data Large data sets light the way to a host of objective ways of viewing real ... efficient and the real estate market is not Practitioners in the real world know, or at least act as if they know, that real estate is very different from finance No investment real estate broker...
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Private Real Estate Investment: Data Analysis and Decision Making_2 docx
Ngày tải lên :
20/06/2014, 18:20
... can be displayed as actual data points and the economic topographical map will represent a real world situation Data represents reality, and there will be times when reality conflicts with theory ... instructed by the CEO of an REIT or real estate fund to visit a new city and investigate real estate opportunities there, an acquisition team may first consult data before landing in a market where ... transactions A WINDOW TO THE FUTURE Table 1-3 shows rent data collected along a line stretching away from a high rent location Real estate data always has some location attribute In the past that...
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