Samir Khan: New Applications
http://www.maplesoft.com/applications/author.aspx?mid=613
en-us2017 Maplesoft, A Division of Waterloo Maple Inc.Maplesoft Document SystemTue, 27 Jun 2017 20:50:31 GMTTue, 27 Jun 2017 20:50:31 GMTNew applications published by Samir Khanhttp://www.mapleprimes.com/images/mapleapps.gifSamir Khan: New Applications
http://www.maplesoft.com/applications/author.aspx?mid=613
Choropleth Map of Literacy Rates in Sub-Saharan Africa
https://www.maplesoft.com/applications/view.aspx?SID=154251&ref=Feed
This application generates a choropleth map that illustrates literacy rates in subsaharan Africa. Data is sourced from a 2015 UNESCO study.<img src="/view.aspx?si=154251/screengrab.png" alt="Choropleth Map of Literacy Rates in Sub-Saharan Africa" align="left"/>This application generates a choropleth map that illustrates literacy rates in subsaharan Africa. Data is sourced from a 2015 UNESCO study.154251Mon, 29 May 2017 04:00:00 ZSamir KhanSamir KhanBolt Group Coefficient for Eccentric Loads
https://www.maplesoft.com/applications/view.aspx?SID=154252&ref=Feed
This application calculates the bolt coefficient for eccentrically loaded bolt groups using the Instantaneous Center of Rotation method (also known as the Ultimate Strength method).
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The bolt coefficient C is the ratio of the factored force (or available strength) of the bolt group Pu and the shear capacity of a single bolt. Once the coefficient is known, a bolt group can be designed for any load.
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Traditionally, bolt group coefficients are extracted by using tabulated values in the AISC Steel Construction Manual. However, these tables are limited to common bolt patterns, and specific load eccentricities and angles. Non-tabulated values must be extracted by using linear interpolation.
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This Maple worksheet, however, calculates the bolt group coefficient for any bolt and load configuration by implementing the theory used to generate the tables.
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The results agree with those presented in AISC Manual of Steel Construction: Load and Resistance Factor Design, 2nd Edition.<img src="/view.aspx?si=154252/screengrab.png" alt="Bolt Group Coefficient for Eccentric Loads" align="left"/>This application calculates the bolt coefficient for eccentrically loaded bolt groups using the Instantaneous Center of Rotation method (also known as the Ultimate Strength method).
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The bolt coefficient C is the ratio of the factored force (or available strength) of the bolt group Pu and the shear capacity of a single bolt. Once the coefficient is known, a bolt group can be designed for any load.
<BR><BR>
Traditionally, bolt group coefficients are extracted by using tabulated values in the AISC Steel Construction Manual. However, these tables are limited to common bolt patterns, and specific load eccentricities and angles. Non-tabulated values must be extracted by using linear interpolation.
<BR><BR>
This Maple worksheet, however, calculates the bolt group coefficient for any bolt and load configuration by implementing the theory used to generate the tables.
<BR><BR>
The results agree with those presented in AISC Manual of Steel Construction: Load and Resistance Factor Design, 2nd Edition.154252Mon, 29 May 2017 04:00:00 ZSamir KhanSamir KhanColor of Gold-Silver-Copper Alloys
https://www.maplesoft.com/applications/view.aspx?SID=154253&ref=Feed
This application plots the colors of gold-silver-copper alloys on a ternary diagram.
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A spreadsheet (attached to this workbook) contains experimental CIE xyY colorspace coordinates of gold-silver-copper alloys under a C illuminant with a 2° observer (Roberts & Clark, 1979). The color data is translated into the CIE Lab colorspace and plotted on a ternary diagram.
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A ternary diagram is a non-standard Maple plot, but can be constructed using Maple's programmatic visualization tools.<img src="/view.aspx?si=154253/screengrab.png" alt="Color of Gold-Silver-Copper Alloys" align="left"/>This application plots the colors of gold-silver-copper alloys on a ternary diagram.
<BR><BR>
A spreadsheet (attached to this workbook) contains experimental CIE xyY colorspace coordinates of gold-silver-copper alloys under a C illuminant with a 2° observer (Roberts & Clark, 1979). The color data is translated into the CIE Lab colorspace and plotted on a ternary diagram.
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A ternary diagram is a non-standard Maple plot, but can be constructed using Maple's programmatic visualization tools.154253Mon, 29 May 2017 04:00:00 ZSamir KhanSamir KhanCost of Heating a Home with Natural Gas
https://www.maplesoft.com/applications/view.aspx?SID=154254&ref=Feed
This application calculates the cost of heating a house with natural gas, assuming
<UL>
<LI> heat losses through four side walls (each with windows), a roof, and air exchanges with the environment
<LI> and heat gains through a furnace.
</UL>
Historical heating degree day data for Kitchener, Ontario, will be used.
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Only the direct cost of the natural gas is computed; no other costs, such as delivery or taxes, are included.<img src="/view.aspx?si=154254/screengrab.png" alt="Cost of Heating a Home with Natural Gas" align="left"/>This application calculates the cost of heating a house with natural gas, assuming
<UL>
<LI> heat losses through four side walls (each with windows), a roof, and air exchanges with the environment
<LI> and heat gains through a furnace.
</UL>
Historical heating degree day data for Kitchener, Ontario, will be used.
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Only the direct cost of the natural gas is computed; no other costs, such as delivery or taxes, are included.154254Mon, 29 May 2017 04:00:00 ZSamir KhanSamir KhanDeflection of a Beam with Distributed and Point Load
https://www.maplesoft.com/applications/view.aspx?SID=154255&ref=Feed
This application will derive an explicit expression for the deflection of a beam with a distributed load and a point load. It does this by symbolically solving the Euler-Bernoulli equation.
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Moreover, the beam deflection equation is differentiated to give symbolic expressions for the moment and shear of the beam.<img src="/view.aspx?si=154255/screengrab.png" alt="Deflection of a Beam with Distributed and Point Load" align="left"/>This application will derive an explicit expression for the deflection of a beam with a distributed load and a point load. It does this by symbolically solving the Euler-Bernoulli equation.
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Moreover, the beam deflection equation is differentiated to give symbolic expressions for the moment and shear of the beam.154255Mon, 29 May 2017 04:00:00 ZSamir KhanSamir KhanEfficiency of a Gas Turbine
https://www.maplesoft.com/applications/view.aspx?SID=154256&ref=Feed
This application plots the efficiency of a gas turbine (based upon an ideal Brayton cycle) as a function of the compressor pressure ratio.
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A procedure is developed that computes the efficiency as a function of the compressor inlet temperature and pressure, the combustor outlet temperature, and the compressor pressure ratio; any of these parameters can be modified and explored.
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The working fluid is air, whose thermodynamic properties of air are provided by the ThermophysicalData package.<img src="/view.aspx?si=154256/screengrab.png" alt="Efficiency of a Gas Turbine" align="left"/>This application plots the efficiency of a gas turbine (based upon an ideal Brayton cycle) as a function of the compressor pressure ratio.
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A procedure is developed that computes the efficiency as a function of the compressor inlet temperature and pressure, the combustor outlet temperature, and the compressor pressure ratio; any of these parameters can be modified and explored.
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The working fluid is air, whose thermodynamic properties of air are provided by the ThermophysicalData package.154256Mon, 29 May 2017 04:00:00 ZSamir KhanSamir KhanInteractive Temperature-Entropy Chart
https://www.maplesoft.com/applications/view.aspx?SID=154257&ref=Feed
This application lets you generate and customize a temperature-entropy chart for over 100 pure fluids. You can adjust the temperature and entropy range over which the chart is generated, and adjust the isobars.
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These charts are generated from real fluid properties, courtesy of Maple's ThermophysicalData package.<img src="/view.aspx?si=154257/screengrab.png" alt="Interactive Temperature-Entropy Chart" align="left"/>This application lets you generate and customize a temperature-entropy chart for over 100 pure fluids. You can adjust the temperature and entropy range over which the chart is generated, and adjust the isobars.
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These charts are generated from real fluid properties, courtesy of Maple's ThermophysicalData package.154257Mon, 29 May 2017 04:00:00 ZSamir KhanSamir KhanLive Earthquake Data
https://www.maplesoft.com/applications/view.aspx?SID=154258&ref=Feed
This application downloads live earthquake data from the USGS website, and plots the location and magnitude on a world map. You can experiment with various map styles and projections.
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If you move the mouse over the points in the visualization, an annotation gives the location and the magnitude of an earthquake
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The world map for this visualization is generated by Maple's map tools.<img src="/view.aspx?si=154258/screengrab.png" alt="Live Earthquake Data" align="left"/>This application downloads live earthquake data from the USGS website, and plots the location and magnitude on a world map. You can experiment with various map styles and projections.
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If you move the mouse over the points in the visualization, an annotation gives the location and the magnitude of an earthquake
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The world map for this visualization is generated by Maple's map tools.154258Mon, 29 May 2017 04:00:00 ZSamir KhanSamir KhanMaximum Flow Rate in Open-Channel Flow for a Circular Pipe
https://www.maplesoft.com/applications/view.aspx?SID=154259&ref=Feed
This application determines the greatest attainable water flow rate in a partially filled circular pipe.
It uses the Manning formula to determine the flow rate in the open-channel flow of water.
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An equation that represents the hydraulic radius of a partially filled circular pipe is derived and substituted into the Manning formula. The resulting equation is then optimized to find the maximum flow rate.<img src="/view.aspx?si=154259/screengrab.png" alt="Maximum Flow Rate in Open-Channel Flow for a Circular Pipe" align="left"/>This application determines the greatest attainable water flow rate in a partially filled circular pipe.
It uses the Manning formula to determine the flow rate in the open-channel flow of water.
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An equation that represents the hydraulic radius of a partially filled circular pipe is derived and substituted into the Manning formula. The resulting equation is then optimized to find the maximum flow rate.154259Mon, 29 May 2017 04:00:00 ZSamir KhanSamir KhanMaximum Pressure Surge Generated by Instantaneous Valve Shutoff
https://www.maplesoft.com/applications/view.aspx?SID=154260&ref=Feed
This application calculates the excess pressure generated by water hammer when a valve at the end of a pipeline instantaneously closes.<img src="/view.aspx?si=154260/screengrab.png" alt="Maximum Pressure Surge Generated by Instantaneous Valve Shutoff" align="left"/>This application calculates the excess pressure generated by water hammer when a valve at the end of a pipeline instantaneously closes.154260Mon, 29 May 2017 04:00:00 ZSamir KhanSamir KhanParameter Estimation for Photovoltaic Diodes
https://www.maplesoft.com/applications/view.aspx?SID=154261&ref=Feed
The behavior of a photovoltaic diode is described by an implicit equation that cannot normally be rearranged using standard matheamtical functions. However, Maple offers many specialized mathematical functions that assist in manipulating implicit equations.
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This application
<UL>
<LI> will rearrange the photovoltaic diode equation to give the current in terms of the LambertW equation
<LI>find the best-fit parameters against experimental data
</UL><img src="/view.aspx?si=154261/screengrab.png" alt="Parameter Estimation for Photovoltaic Diodes" align="left"/>The behavior of a photovoltaic diode is described by an implicit equation that cannot normally be rearranged using standard matheamtical functions. However, Maple offers many specialized mathematical functions that assist in manipulating implicit equations.
<BR><BR>
This application
<UL>
<LI> will rearrange the photovoltaic diode equation to give the current in terms of the LambertW equation
<LI>find the best-fit parameters against experimental data
</UL>154261Mon, 29 May 2017 04:00:00 ZSamir KhanSamir KhanPump Power for Flow between Two Reservoirs
https://www.maplesoft.com/applications/view.aspx?SID=154262&ref=Feed
A pump transfers liquid from one tank to another according to the following schematic, with check valves placed on either side of the pump. Each tank is open to the atmosphere. This worksheet calculates the flow rate in the pipe by solving the Bernoulli equation for the system, taking into account the head added by the pump, and the head loss due to friction and pipe fittings. Additionally, the pump head and pump shaft power is calculated.<img src="/view.aspx?si=154262/screengrab.png" alt="Pump Power for Flow between Two Reservoirs" align="left"/>A pump transfers liquid from one tank to another according to the following schematic, with check valves placed on either side of the pump. Each tank is open to the atmosphere. This worksheet calculates the flow rate in the pipe by solving the Bernoulli equation for the system, taking into account the head added by the pump, and the head loss due to friction and pipe fittings. Additionally, the pump head and pump shaft power is calculated.154262Mon, 29 May 2017 04:00:00 ZSamir KhanSamir KhanPyramidal Horn Design
https://www.maplesoft.com/applications/view.aspx?SID=154263&ref=Feed
This application calculates the optimum design parameters for an X-band pyramidal horn.<img src="/view.aspx?si=154263/screengrab.png" alt="Pyramidal Horn Design" align="left"/>This application calculates the optimum design parameters for an X-band pyramidal horn.154263Mon, 29 May 2017 04:00:00 ZSamir KhanSamir KhanRadiation Pattern and Directivity of an Antenna Array
https://www.maplesoft.com/applications/view.aspx?SID=154264&ref=Feed
The application calculates the array factor and directivity for a uniform linear antenna array, and then plots the radiation pattern.<img src="/view.aspx?si=154264/screengrab.png" alt="Radiation Pattern and Directivity of an Antenna Array" align="left"/>The application calculates the array factor and directivity for a uniform linear antenna array, and then plots the radiation pattern.154264Mon, 29 May 2017 04:00:00 ZSamir KhanSamir KhanSimply Supported Beam Design with Torsional Loading Using AISC Steel Shapes v14.1 Data
https://www.maplesoft.com/applications/view.aspx?SID=154265&ref=Feed
This application performs a design analysis on a simply supported beam with torsional loading for a W10X54 steel beam (as defined by the AISC Steel Shapes Database). The application folows the design code and equations in AISC 360-10.
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You will need to install the AISC Shapes Database package from the MapleCloud before you can use this application.<img src="/view.aspx?si=154265/screengrab.png" alt="Simply Supported Beam Design with Torsional Loading Using AISC Steel Shapes v14.1 Data" align="left"/>This application performs a design analysis on a simply supported beam with torsional loading for a W10X54 steel beam (as defined by the AISC Steel Shapes Database). The application folows the design code and equations in AISC 360-10.
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You will need to install the AISC Shapes Database package from the MapleCloud before you can use this application.154265Mon, 29 May 2017 04:00:00 ZSamir KhanSamir KhanVisualizing European Fertility Rate Data on a Map
https://www.maplesoft.com/applications/view.aspx?SID=154266&ref=Feed
This application generates a choropleth map visualizing the average number of children born to a woman in a number of European countries for the calendar year 2015.<img src="/view.aspx?si=154266/screengrab.png" alt="Visualizing European Fertility Rate Data on a Map" align="left"/>This application generates a choropleth map visualizing the average number of children born to a woman in a number of European countries for the calendar year 2015.154266Mon, 29 May 2017 04:00:00 ZSamir KhanSamir KhanCalculating the Bulk Modulus of a Fluid
https://www.maplesoft.com/applications/view.aspx?SID=154172&ref=Feed
This application contains a procedure that accepts a temperature, pressure and fluid, and calculates the isothermal bulk modulus using the ThermophysicalData package and numeric derivatives. The procedure is used to demonstrate that the bulk modulus of water is at a maximum at a temperature of 320 K.<img src="/applications/images/app_image_blank_lg.jpg" alt="Calculating the Bulk Modulus of a Fluid" align="left"/>This application contains a procedure that accepts a temperature, pressure and fluid, and calculates the isothermal bulk modulus using the ThermophysicalData package and numeric derivatives. The procedure is used to demonstrate that the bulk modulus of water is at a maximum at a temperature of 320 K.154172Thu, 06 Oct 2016 04:00:00 ZSamir KhanSamir KhanThermodynamic Properties of Ordinary Water Substance for General and Scientific Use
https://www.maplesoft.com/applications/view.aspx?SID=154173&ref=Feed
This Maple Application was developed by Russian National Committee (RNC) of International Association for the Water and Steam(IAPWS). This calculation is based on the "Revised Release on the IAPWS Formulation 1995 for the Thermodynamic Properties of Ordinary Water Substance for General and Scientific Use". Detailed information about used equations, constants, range of validity etc is presented in PDF version of IAPWS Release which can be downloaded from IAPWS web site.<img src="/applications/images/app_image_blank_lg.jpg" alt="Thermodynamic Properties of Ordinary Water Substance for General and Scientific Use" align="left"/>This Maple Application was developed by Russian National Committee (RNC) of International Association for the Water and Steam(IAPWS). This calculation is based on the "Revised Release on the IAPWS Formulation 1995 for the Thermodynamic Properties of Ordinary Water Substance for General and Scientific Use". Detailed information about used equations, constants, range of validity etc is presented in PDF version of IAPWS Release which can be downloaded from IAPWS web site.154173Thu, 06 Oct 2016 04:00:00 ZKonstantin Orlov<BR>Aung Thu Ya TunKonstantin Orlov<BR>Aung Thu Ya TunSteam Turbine Analysis
https://www.maplesoft.com/applications/view.aspx?SID=154125&ref=Feed
Assuming adiabatic operation and an isentropic efficiency of 0.85, this application calculates the turbine power and temperature of the exit gas.<img src="/applications/images/app_image_blank_lg.jpg" alt="Steam Turbine Analysis" align="left"/>Assuming adiabatic operation and an isentropic efficiency of 0.85, this application calculates the turbine power and temperature of the exit gas.154125Fri, 24 Jun 2016 04:00:00 ZSamir KhanSamir KhanEfficiency of a Rankine Cycle
https://www.maplesoft.com/applications/view.aspx?SID=154126&ref=Feed
This application calculates the efficiency of a Rankine cycle with:
<UL>
<LI>a condenser temperature of 380 K,
<LI>a compressor output pressure of 3.5 MPa
<LI>and a boiler temperature of 900 K.
</UL>
Additionally, the thermodynamic cycle is visualized on a temperature-entropy plot.<img src="/view.aspx?si=154126/rankine_cycle_using_water.jpg" alt="Efficiency of a Rankine Cycle" align="left"/>This application calculates the efficiency of a Rankine cycle with:
<UL>
<LI>a condenser temperature of 380 K,
<LI>a compressor output pressure of 3.5 MPa
<LI>and a boiler temperature of 900 K.
</UL>
Additionally, the thermodynamic cycle is visualized on a temperature-entropy plot.154126Fri, 24 Jun 2016 04:00:00 ZSamir KhanSamir Khan