sample size and power
Health and Quality of Life Outcomes BioMed Central Research Open Access Sample size and power doc
Ngày tải lên :
20/06/2014, 15:20
... approximate power, π (G, δ, α, n) by the following computer simulation procedure [14,19,20] Algorithm Power and sample size estimation using the bootstrap Draw a random sample with replacement of size ... means Suppose we have two independent random samples x1, x2, ,xm and y1, y2, ,yn, of HRQoL data of size m and n respectively The x's are y's are random samples from continuous HRQoL distributions ... determining sample size and analysing the data [4,5] The advantages in being able to treat HRQoL scales as continuous and Normally distributed are simplicity in sample size estimation and statistical...
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Exergoeconomic performance optimization of an endoreversible intercooled regenerative Brayton combined heat and power plant coupled to variable-temperature heat reservoirs
Ngày tải lên :
05/09/2013, 14:59
... where CH and CH max are the smaller and the larger of the two capacitance rates CH and Cwf , CL and CL max are the smaller and the larger of the two capacitance rates CL and Cwf , CIm in and CIm ... cycle with gas turbine and steam turbine J Power Engng., 1998, 8(6): 118-124 (in Chinese) Bo Yang received his BS Degree in 2008 and MS Degree in 2010 in power engineering and engineering thermophysics ... plant with heat resistance and internal irreversibility [27] and an irreversible Dual cycle CHP plant with heat resistance, heat leakage and internal irreversibility [28], and compared the results...
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Tài liệu tiếng anh Điện tử công suất mạch MERS A new AC current switch called MERS with low on state voltage IGBTs for renewable energy and power saving applications
Ngày tải lên :
15/10/2013, 16:10
... (b)Voltage and power factor control of induction motor (c)Series compensation in transmission system Fig Example of resulting voltage and current curves when controlling the MERS load voltage or the power ... wind power conversion system With the trend going toward full-converter solutions for wind power applications, a lot of attention is given to reducing cost and improving the efficiency of the power ... a result, the maximum output power is limited and the armature loss is increased for a given power output By inserting a capacitor in series between the generator and the diode bridge, the voltage...
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Getting Started With ASP.NET ASP.NET is a new and powerful technology for writing dynamic web pages.
Ngày tải lên :
06/11/2013, 00:15
... through JDBC Microsoft and Netscape browsers both have built-in Java support via something known as the Java Virtual Machine (JVM), and there are several standard and non-standard ... downloaded, set up and installed both IIS and ASP.NET, and got your first ASP.NET application up and running If you've done all that, you can pat yourself on the back, make a cup of tea, and get ready ... ASP.NET, and VB.NET It's really important to get these terms separate and distinct in your mind, so before we move on to actually installing and running ASP.NET, we're going to go back and redefine...
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Tài liệu FIELD INTENSITY and POWER DENSITY doc
Ngày tải lên :
12/12/2013, 09:15
... 4-2 provides sample calculations using power density and power terms from Table and Table 2, whereas Section 4-12 uses these terms plus field intensity and voltage terms from Table and Table Refer ... Ae relates free space power density PD with received power, Pr , i.e Pr = PD Ae Ae is a function of frequency and antenna gain and is related to AF as shown in Section 4-12 SAMPLE CALCULATIONS ... of power density to actual measurements with a spectrum analyzer attached by coaxial cable to a receiving antenna Conversion Between Field Intensity (Table 1) and Power Received (Table 2) Power...
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Tài liệu The Computer Case and Power Supply pptx
Ngày tải lên :
21/12/2013, 19:15
... to the local power requirements when selecting the voltage for the power supply Step Power supplies are rated by wattage, which is usually between 250 and 300 watts What is the power supply rating ... Systems, Inc Step Most computer cases come complete with a power supply However, not all cases are built for the United States market and therefore may not be set for the correct voltage Look ... mini DIN _ USB (Make sure it matches the connector on the Motherboard) Power Supply AT ATX _ Other _ Power Supply Wattage _ Step Examine the screws that will be used for the...
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Tài liệu Noblewoman aristocracy and power in the twelfth century anglo norman realm pptx
Ngày tải lên :
14/02/2014, 20:20
... vi Contents tables and figures preface abbreviations page viii ix xi introduction part i Literary sources Power and portrayal 13 Patronage and power 30 part ii Noblewomen and power: the charter ... 1331 15 J Hudson, ‘Anglo-Norman land law and the origins of property’, in G S Garnett and J G H Hudson (eds), Law and Government in Medieval England and Normandy: Essays in Honour of Sir James ... that the powers of the eleventh-century queens Emma and Edith had multiple bases, through land tenure and in ‘marriage and maternity’.4 Stafford is interested in explaining queenly power in terms...
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Governing Electronically E-Government and the Reconfiguration of Public Administration, Policy and Power potx
Ngày tải lên :
06/03/2014, 06:21
... writings and in his earlier writings, Foucault articulates different types of power – for example, disciplinary power, bio -power, sovereign power, pastoral power These different forms of power help ... of understanding, being and acting both within and beyond government Deploying e-government can and does generate new insights into the way in which we think about and design public and social ... and Government 27 domain of reality, and to establish ‘in the world of persons and things’ spaces and devices for acting upon those entities of which they dream and scheme (1990a: 8) Miller and...
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Aesthetic phenomena as supernormal stimuli: The case of eye, lip, and lower-face size and roundness in artistic portraits pptx
Ngày tải lên :
07/03/2014, 17:20
... demonstrates that larger and rounder eyes and lips, and a reduced and more pointed chin play a significant role in the perception of attractiveness (McArthur and Apatow 1983/1984; Berry and McArthur 1985; ... simplifications and transformations of the human face and form in African art and by Brancusi, Giacometti, Picasso, Moore, Bacon, and many twentieth-century artists were not arbitrary, and were perceived ... both artistic self-portraits, an exaggeration of eye and lip size and roundness, and a reduction of lower-face roundness with a more geometrical and V-shaped jaw ^ chin can be observed 3.3 Anthropometry...
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Integrating Electronic Equipment and Power into Rack Enclosures pot
Ngày tải lên :
08/03/2014, 13:20
... understanding of proper design and installation of power distribution and grounding to avoid potential noise and safety problems In order to get a good understanding of how some potential power and ... DSP Main Panel The smallest standard wire size that will handle 18.75 amps is #12 (20 amp) X-Over Power Amp Power Amp Power Amp Integrating Electronic Equipment and Power into Rack Enclosures © ... Rule: The load (1) determines the power strip rating (2) and wire size (3); the wire size determines the circuit breaker size (4), as shown in the figure below 20 amp power strip required There are...
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Sibship Size and Health Outcomes in Later Life among the Mexican Elderly pptx
Ngày tải lên :
14/03/2014, 17:20
... measured height and weight, the BMI can be calculated for only 16% of the male sample and 16.8% of the female sample Antecol and Bedard (2006) compare the US NHIS and NHANSE III and report the ... (e.g., Butcher and Case 1994) and somewhat poorer health (e.g., Garg and Murdoch 1998) Much attention has been paid to the association between sibship size and education, education and adult health, ... Female 30 Figure Sibship Size and Selected Disease Measures, by Gender (a) Male (b) Female 31 Figure Sibship Size and Average Height, by Gender 32 Appendix Table Means and Standard Deviations of...
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Government size and business cycle volatility; How important are credit constraints? pot
Ngày tải lên :
15/03/2014, 07:20
... effects See Ramey (2011) and Cwik and Wieland (2011) for recent surveys (Linnemann and Schabert, 2003; Baxter and King, 1993) and intertemporal substitution effects (Davig and Leeper, 2011; Woodford, ... for government size, Globit is a control variable that captures the degree of openness, and λi and λt are country and year fixed effects, respectively We follow Morgan et al (2004) and construct ... wealth and substitution effects are sufficiently strong Nevertheless, a negative correlation between government size and the volatility of output can still be obtained in these models However, as Andres...
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THE NEXT 4 BILLION MARKET SIZE AND BUSINESS STRATEGY AT THE BASE OF THE PYRAMID ppt
Ngày tải lên :
15/03/2014, 21:20
... and investment capital for small and medium -size businesses Several international and bilateral development agencies are launching investment funds to support the growth of small and medium -size ... food, ICT, and consumer products (in packaging goods and services in small unit sizes, or “sachets”) and in health care (such as cross-subsidies and community-based health insurance) And cutting ... development including small and medium enterprises IFC is expanding its technical assistance and investment activities for small and medium -size enterprises These efforts, and the growing private...
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Quality and Power in the Supply Chain: What Industry Does for the Sake of Quality pdf
Ngày tải lên :
17/03/2014, 20:21
... Part I Prologue: On Power and Its Impact on Customer-Supplier Relations Power and Its Impact on Customer-Supplier Relations Introduction The Role of Power in Dictating Demands The Vendor-Vendee ... Interested Parties? 114 The Economics of Standardization 116 The Limits of Standardization 117 Standards and the Law: A Powerful Combination 119 Standards Proliferation in an Age of Regulation ... 1994 8 Quality and Power in the Supply Chain As companies become larger, their economic dominance and power over so-called "peripheral" firms increase and so their contractual demands or, rather,...
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synthesis of hematite (r-fe2o3) nanorods diameter-size and shape effects on their
Ngày tải lên :
20/03/2014, 13:08
... (g-h), and S4 (j-l) The corresponding XRD patterns for the samples of S1, S2, S3, and S4 are shown in panels c, f, i, and m, respectively (n) The magnified (110) peaks for these four samples, ... Rs(air)/Rs(gas), where Rs(air) and Rs(gas) are the resistance of the sensor in clean air and in detected gas, respectively Results and Discussion 3.1 Morphology, Characterization, and Formation Mechanism ... been named S1, S2, S3, and S4 The ascollected R-Fe2O3 products were rinsed with distilled water and finally dried at 40 °C in a vacuum The samples of as-prepared FeOOH and R-Fe2O3 nanostructures...
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cirstea, m. n. (2002). neural and fuzzy logic control of drives and power systemsl
Ngày tải lên :
18/04/2014, 12:29
... networks, fuzzy logic, electric machines and drives, power systems and VHDL and forms a basic guide for the understanding of the fundamental principles of modern power electronic control systems design ... for drives and power systems 3 Electric motors and power systems 3.1 Electric motors Electric motors are major users of electricity in industrial plants and commercial premises Motive power accounts ... by the desired power frequency and 26 Neural and Fuzzy Logic Control of Drives and Power Systems N is the number of sampling points in one cycle of the carrier signal For a 50 Hz power frequency,...
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