New Application Center Additions
http://www.maplesoft.com/applications
en-us2016 Maplesoft, A Division of Waterloo Maple Inc.Maplesoft Document SystemFri, 06 May 2016 05:21:55 GMTFri, 06 May 2016 05:21:55 GMTThe latest content added to the Application Centerhttp://www.mapleprimes.com/images/mapleapps.gifNew Application Center Additions
http://www.maplesoft.com/applications
Transport Encoding/Decoding and Cryptographic Protection of Computer Storage
http://www.maplesoft.com/applications/view.aspx?SID=154088&ref=Feed
This worksheet contains two user-friendly useful applications for encrypting personal files. One is useful for encoding arbitrary binary information, such as, for example, *.exe files, encrypted messages, cryptographic keys and audio and image files, for transmission by electronic mail. The second application provides an easy mechanism for non-computer science specialists to protect confidential data stored on their computers.<img src="/view.aspx?si=154088/cspr.jpg" alt="Transport Encoding/Decoding and Cryptographic Protection of Computer Storage" align="left"/>This worksheet contains two user-friendly useful applications for encrypting personal files. One is useful for encoding arbitrary binary information, such as, for example, *.exe files, encrypted messages, cryptographic keys and audio and image files, for transmission by electronic mail. The second application provides an easy mechanism for non-computer science specialists to protect confidential data stored on their computers.154088Thu, 21 Apr 2016 04:00:00 ZCzeslaw KoscielnyCzeslaw KoscielnyFractal Leaf Generator
http://www.maplesoft.com/applications/view.aspx?SID=154086&ref=Feed
This application generates Barnsley Fern fractals, using the number of iterations specified by the user.<img src="/view.aspx?si=154086/fractalleaf.jpg" alt="Fractal Leaf Generator" align="left"/>This application generates Barnsley Fern fractals, using the number of iterations specified by the user.154086Wed, 20 Apr 2016 04:00:00 ZMaplesoftMaplesoftPulse Values from Long Term Measurement
http://www.maplesoft.com/applications/view.aspx?SID=154087&ref=Feed
Long term measurement of heart rate furnishes important information of cardiac anomalies. During a period of about 24 hours pulse rate of a patient at the University Hospital Aachen has been measured. Thus, we have a lots of pulse values, which are important for a medical doctor treating sick patients. We use Maple to analyze this data. At first the given data have been interpolated by cubic spline functions. Then, these functions have been approximated by nonlinear regression and also by Fourier series.<img src="/view.aspx?si=154087/pulsevalues.png" alt="Pulse Values from Long Term Measurement" align="left"/>Long term measurement of heart rate furnishes important information of cardiac anomalies. During a period of about 24 hours pulse rate of a patient at the University Hospital Aachen has been measured. Thus, we have a lots of pulse values, which are important for a medical doctor treating sick patients. We use Maple to analyze this data. At first the given data have been interpolated by cubic spline functions. Then, these functions have been approximated by nonlinear regression and also by Fourier series.154087Wed, 20 Apr 2016 04:00:00 ZProf. Josef BettenProf. Josef BettenIonization Constant of H2O as function of pressure and temperature
http://www.maplesoft.com/applications/view.aspx?SID=154073&ref=Feed
This application calculates the ionization constant of water using the formulation ratified by the International Association for the Properties of Water and Steam (IAPWS) in 2007. The formula is semi-empirical, and employs temperature and density as states. This application, however, asks the user to enter temperature and pressure as states, and uses that information to calculate the density of water. This is a more practical specification of states.<img src="/view.aspx?si=154073/81c8f7d9a73d606bb26d75f871d0f3ab.gif" alt="Ionization Constant of H2O as function of pressure and temperature" align="left"/>This application calculates the ionization constant of water using the formulation ratified by the International Association for the Properties of Water and Steam (IAPWS) in 2007. The formula is semi-empirical, and employs temperature and density as states. This application, however, asks the user to enter temperature and pressure as states, and uses that information to calculate the density of water. This is a more practical specification of states.154073Tue, 05 Apr 2016 09:40:36 ZProf. Valery OchkovProf. Valery OchkovVectors in the plane.
http://www.maplesoft.com/applications/view.aspx?SID=154071&ref=Feed
If an object is subjected to several forces having different magnitudes and act in different directions, how can determine the magnitude and direction of the resultant total force on the object? Forces are vectors and should be added according to the definition of the vector sum. Engineering dealing with many quantities that have both magnitude and direction and can be expressed and analyzed as vectors.
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In Spanish.<img src="/view.aspx?si=154071/vp.png" alt="Vectors in the plane." align="left"/>If an object is subjected to several forces having different magnitudes and act in different directions, how can determine the magnitude and direction of the resultant total force on the object? Forces are vectors and should be added according to the definition of the vector sum. Engineering dealing with many quantities that have both magnitude and direction and can be expressed and analyzed as vectors.
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In Spanish.154071Fri, 01 Apr 2016 04:00:00 ZProf. Lenin Araujo CastilloProf. Lenin Araujo CastilloAdvanced Exergetic Analysis of Simple Vapor Compression Refrigeration Cycle
http://www.maplesoft.com/applications/view.aspx?SID=154068&ref=Feed
An advanced exergetic analysis converts the most important limitations of the conventional analysis into strengths. An advanced analysis provides options to estimate (a) the real potential for improving the components (splitting the exergy destruction into unavoidable and avoidable parts); and (b) the mutual interdependencies among the exergy destructions within the components of a system (splitting the exergy destruction into endogenous and exogenous parts). Distinctions between avoidable and unavoidable exergy destruction on one side and endogenous and exogenous exergy destruction on the other side (with a further splitting of the exogenous exergy destruction) allow engineers to focus on the thermodynamic inefficiencies that can be avoided by simultaneously considering the interactions among system components. The avoidable endogenous and the avoidable exogenous exergy destructions provide the best guidance for improving the thermodynamic performance of energy conversion systems.
The drawbacks associated with the advanced exergetic analysis are the need for simulating some non-standard cycles (e.g., so-called hybrid cycles), the large number of required simulations and the associated engineering time.
Within this Maple-aided analysis, the potential for improving the thermodynamic efficiency of components and the overall vapor-compression refrigeration system as well as the interactions among components and their effect on the exergy destruction within each component can be estimated.<img src="/view.aspx?si=154068/Vv-27-adv-ex-eng-SimpleRefrigerationCycle.png" alt="Advanced Exergetic Analysis of Simple Vapor Compression Refrigeration Cycle" align="left"/>An advanced exergetic analysis converts the most important limitations of the conventional analysis into strengths. An advanced analysis provides options to estimate (a) the real potential for improving the components (splitting the exergy destruction into unavoidable and avoidable parts); and (b) the mutual interdependencies among the exergy destructions within the components of a system (splitting the exergy destruction into endogenous and exogenous parts). Distinctions between avoidable and unavoidable exergy destruction on one side and endogenous and exogenous exergy destruction on the other side (with a further splitting of the exogenous exergy destruction) allow engineers to focus on the thermodynamic inefficiencies that can be avoided by simultaneously considering the interactions among system components. The avoidable endogenous and the avoidable exogenous exergy destructions provide the best guidance for improving the thermodynamic performance of energy conversion systems.
The drawbacks associated with the advanced exergetic analysis are the need for simulating some non-standard cycles (e.g., so-called hybrid cycles), the large number of required simulations and the associated engineering time.
Within this Maple-aided analysis, the potential for improving the thermodynamic efficiency of components and the overall vapor-compression refrigeration system as well as the interactions among components and their effect on the exergy destruction within each component can be estimated.154068Wed, 30 Mar 2016 17:20:39 ZVolodymyr VoloshchukVolodymyr VoloshchukEfficiency of a Turbine Cycle cycle with supercritical CO2 as working fluid
http://www.maplesoft.com/applications/view.aspx?SID=154066&ref=Feed
This cycle is used for recycling waste heat from industrial plants - to generate electricity<img src="/view.aspx?si=154066/cc9889b3e3c2c469ae7f31638121e968.gif" alt="Efficiency of a Turbine Cycle cycle with supercritical CO2 as working fluid" align="left"/>This cycle is used for recycling waste heat from industrial plants - to generate electricity154066Wed, 23 Mar 2016 04:00:00 ZVolodymir VoloshchukVolodymir VoloshchukBodies with fixed volume and minimal surface
http://www.maplesoft.com/applications/view.aspx?SID=154057&ref=Feed
We would like to find r/h when a surface is minimal.
Can you solve more complex problem for others bodies<img src="/view.aspx?si=154057/1e22ebea45ed480d944eaae36fe7be0e.gif" alt="Bodies with fixed volume and minimal surface" align="left"/>We would like to find r/h when a surface is minimal.
Can you solve more complex problem for others bodies154057Mon, 21 Mar 2016 17:44:27 ZProf. Valery OchkovProf. Valery OchkovThermal Efficiency of the combined (binary) cycle with T-s and h-s charts
http://www.maplesoft.com/applications/view.aspx?SID=154050&ref=Feed
This application calculates the thermal efficiency of a steam turbine (based on a Rankine cycle), combined with a gas turbine based on the Brayton Cycle) with the creating a T-s and h-s (Mollier) live charts.<img src="/view.aspx?si=154050/Gas-Steam-Cycle-T-s-h-s-charts.png" alt="Thermal Efficiency of the combined (binary) cycle with T-s and h-s charts" align="left"/>This application calculates the thermal efficiency of a steam turbine (based on a Rankine cycle), combined with a gas turbine based on the Brayton Cycle) with the creating a T-s and h-s (Mollier) live charts.154050Mon, 21 Mar 2016 04:00:00 ZProf. Valery OchkovProf. Valery OchkovThermodynamic Calculations of Two-Stage Vapor Compression Refrigeration Cycle with Flash Chamber and Separate Vapor Mixing Intercooler
http://www.maplesoft.com/applications/view.aspx?SID=154065&ref=Feed
In the event that a high COP of a refrigeration cycle is of greater importance compared to other factors, it is possible to significantly increase the COP of a basic cycle through the use of a multistage vapor compression cycle. This is especially true when the pressure ratio between the heat rejection and heat absorption pressures is large 5 or more.
Multistaging involves one or more intermediate pressures between the heat rejection and heat absorption pressures, and a series of compressors operating between successive pressure intervals.
One type of multi-compressor vapor compression cycle includes a mixing chamber where saturated vapor from the flash chamber mixes with the vapor leaving the low pressure stage compressor. This vapor-mixing chamber acts as a regenerative intercooler since it cools the superheated vapor leaving the low-pressure stage compressor using lower temperature saturated workin fluid, mixing the two prior to the next stage of compression.
This type of refrigeration cycle is analysed in the following calculation.<img src="/view.aspx?si=154065/Two-Stage_Vapor_Compression_Refrigeration_Cycle_with_Flash_Chamber_and_Separate_Vapor_Mixing_Intercooler.png" alt="Thermodynamic Calculations of Two-Stage Vapor Compression Refrigeration Cycle with Flash Chamber and Separate Vapor Mixing Intercooler" align="left"/>In the event that a high COP of a refrigeration cycle is of greater importance compared to other factors, it is possible to significantly increase the COP of a basic cycle through the use of a multistage vapor compression cycle. This is especially true when the pressure ratio between the heat rejection and heat absorption pressures is large 5 or more.
Multistaging involves one or more intermediate pressures between the heat rejection and heat absorption pressures, and a series of compressors operating between successive pressure intervals.
One type of multi-compressor vapor compression cycle includes a mixing chamber where saturated vapor from the flash chamber mixes with the vapor leaving the low pressure stage compressor. This vapor-mixing chamber acts as a regenerative intercooler since it cools the superheated vapor leaving the low-pressure stage compressor using lower temperature saturated workin fluid, mixing the two prior to the next stage of compression.
This type of refrigeration cycle is analysed in the following calculation.154065Mon, 21 Mar 2016 04:00:00 ZVolodymyr VoloshchukVolodymyr VoloshchukCentroid with defined integral
http://www.maplesoft.com/applications/view.aspx?SID=154064&ref=Feed
With this application and using the rules of calculation we can show that procedures embedded in Maple components can also be used for teaching purposes in engineering. <br/><br/> In Spanish.<img src="/view.aspx?si=154064/as.png" alt="Centroid with defined integral" align="left"/>With this application and using the rules of calculation we can show that procedures embedded in Maple components can also be used for teaching purposes in engineering. <br/><br/> In Spanish.154064Sun, 20 Mar 2016 04:00:00 ZProf. Lenin Araujo CastilloProf. Lenin Araujo CastilloOrdinary differential equation with Laplace Transform
http://www.maplesoft.com/applications/view.aspx?SID=154063&ref=Feed
Here the development of an ordinary differential equation using Laplace transforms, using interactive components. This worksheet is shown for teaching purposes. You can download the file to be used in a class for engineering students. <br/><br/> In Spanish.<img src="/view.aspx?si=154063/tl.png" alt="Ordinary differential equation with Laplace Transform" align="left"/>Here the development of an ordinary differential equation using Laplace transforms, using interactive components. This worksheet is shown for teaching purposes. You can download the file to be used in a class for engineering students. <br/><br/> In Spanish.154063Sat, 19 Mar 2016 04:00:00 ZProf. Lenin Araujo CastilloProf. Lenin Araujo CastilloSimulation Optimization of a Hydraulic Engine Mount
http://www.maplesoft.com/applications/view.aspx?SID=154055&ref=Feed
This project uses Maple to achieve an optimal design of a hydraulic engine mount. Initially, a hydraulic absorption mount was built in MapleSim and implemented in a mount test station. By entering the storage parameters, the characteristic curves of dynamic rigidity and angle loss were examined. Additionally, the characteristic curves were calculated from the predetermined frequency response function to validate the model.
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MapleSim is not required to run this application.
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Diese Projektarbeit wendet Maple zur Erstellung einer optimalen Auslegung der Motorlagerabstimmung an. Zunächst wurde hierfür ein hydraulisches Tilgerlager in MapleSim aufgebaut und in einen virtuellen Lagerprüfstand implementiert. Durch Eingabe der Lagerparameter können die charakteristischen Kennlinien der dynamischen Steifigkeit und des Verlustwinkels untersucht werden. Zusätzlich können die charakteristischen Kennlinien aus der vorgegebenen Übertragungsfunktion berechnet und zur Validierung des Modells dargestellt werden.
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MapleSim ist nicht erforderlich, um diese Applikation auszuführen.<img src="/view.aspx?si=154055/hydromount.png" alt="Simulation Optimization of a Hydraulic Engine Mount" align="left"/>This project uses Maple to achieve an optimal design of a hydraulic engine mount. Initially, a hydraulic absorption mount was built in MapleSim and implemented in a mount test station. By entering the storage parameters, the characteristic curves of dynamic rigidity and angle loss were examined. Additionally, the characteristic curves were calculated from the predetermined frequency response function to validate the model.
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MapleSim is not required to run this application.
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Diese Projektarbeit wendet Maple zur Erstellung einer optimalen Auslegung der Motorlagerabstimmung an. Zunächst wurde hierfür ein hydraulisches Tilgerlager in MapleSim aufgebaut und in einen virtuellen Lagerprüfstand implementiert. Durch Eingabe der Lagerparameter können die charakteristischen Kennlinien der dynamischen Steifigkeit und des Verlustwinkels untersucht werden. Zusätzlich können die charakteristischen Kennlinien aus der vorgegebenen Übertragungsfunktion berechnet und zur Validierung des Modells dargestellt werden.
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MapleSim ist nicht erforderlich, um diese Applikation auszuführen.154055Thu, 10 Mar 2016 05:00:00 ZBenjamin BetzlerBenjamin BetzlerWorking with Thermophysical Data: Dew-Point and Wet-Bulb Temperature of Air
http://www.maplesoft.com/applications/view.aspx?SID=154054&ref=Feed
Maple can perform calculations and generate visualizations involving thermophysical properties of pure fluids, humid air, and mixtures. Using the dew-point and web-bulb temperature of air as an example, this Tips and Techniques application demonstrates how to access thermophysical properties data, perform calculations that include units, and visualize the results on a psychrometric chart.
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Atmospheric air contains varying levels of water vapor. Weather reports often quantify the water content of air with its relative humidity; this is the amount of water in air, divided by the maximum amount of water air can hold at the same temperature.
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Given the temperature and the relative humidity of air, you can calculate:
<UL>
<LI>the temperature below which water condenses out of air - this is known as the dew-point
<LI>the coldest temperature you can achieve through evaporative cooling - this is known as the wet-bulb temperature
</UL><img src="/view.aspx?si=154054/webbulb.PNG" alt="Working with Thermophysical Data: Dew-Point and Wet-Bulb Temperature of Air" align="left"/>Maple can perform calculations and generate visualizations involving thermophysical properties of pure fluids, humid air, and mixtures. Using the dew-point and web-bulb temperature of air as an example, this Tips and Techniques application demonstrates how to access thermophysical properties data, perform calculations that include units, and visualize the results on a psychrometric chart.
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Atmospheric air contains varying levels of water vapor. Weather reports often quantify the water content of air with its relative humidity; this is the amount of water in air, divided by the maximum amount of water air can hold at the same temperature.
<BR><BR>
Given the temperature and the relative humidity of air, you can calculate:
<UL>
<LI>the temperature below which water condenses out of air - this is known as the dew-point
<LI>the coldest temperature you can achieve through evaporative cooling - this is known as the wet-bulb temperature
</UL>154054Wed, 09 Mar 2016 05:00:00 ZSamir KhanSamir KhanStatically Indeterminate Structure
http://www.maplesoft.com/applications/view.aspx?SID=153940&ref=Feed
The application allows you to determine the constraint reactions, build diagrams of the normal forces N, shear forces Q and bending moments M for beams and frames with any number of sections and degree of static indefinability.
The application calculates the deformation (displacements) of the structure in millimeters and displays the displacements of nodes in the horizontal and vertical. It is also possible to calculate the displacement of any point of the structure.<img src="/view.aspx?si=153940/391e24e981ea8d11454375def604a185.gif" alt="Statically Indeterminate Structure" align="left"/>The application allows you to determine the constraint reactions, build diagrams of the normal forces N, shear forces Q and bending moments M for beams and frames with any number of sections and degree of static indefinability.
The application calculates the deformation (displacements) of the structure in millimeters and displays the displacements of nodes in the horizontal and vertical. It is also possible to calculate the displacement of any point of the structure.153940Wed, 09 Mar 2016 05:00:00 ZDr. Aleksey ShirkoDr. Aleksey ShirkoThermal Efficiency of Steam Turbine Cycle with 2 Pre-heaters
http://www.maplesoft.com/applications/view.aspx?SID=154031&ref=Feed
This application calculates the thermal efficiency of a steam turbine cycle with two pre-heaters<img src="/view.aspx?si=154031/6-01-2RegP.png" alt="Thermal Efficiency of Steam Turbine Cycle with 2 Pre-heaters" align="left"/>This application calculates the thermal efficiency of a steam turbine cycle with two pre-heaters154031Fri, 04 Mar 2016 05:00:00 ZProf. Valery OchkovProf. Valery OchkovMaximal Thermal Efficiency of Steam Turbine Cycle with two Pre-heaters
http://www.maplesoft.com/applications/view.aspx?SID=154032&ref=Feed
This application calculates the maximal thermal efficiency of a steam turbine cycle with two pre-heater by optimizing the two turbine extraction pressures.<img src="/view.aspx?si=154032/6-01-04-2RegP-Max.PNG" alt="Maximal Thermal Efficiency of Steam Turbine Cycle with two Pre-heaters" align="left"/>This application calculates the maximal thermal efficiency of a steam turbine cycle with two pre-heater by optimizing the two turbine extraction pressures.154032Fri, 04 Mar 2016 05:00:00 ZProf. Valery OchkovProf. Valery OchkovThermal Efficiency of Steam Turbine Cycle NPP with PWR
http://www.maplesoft.com/applications/view.aspx?SID=154033&ref=Feed
This application calculates the thermal efficiency of a steam turbine cycle in a Nuclear Power Plant (NPP) with a Pressure Water reactor (PWR).
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Pressurized water flows from the nuclear reactor (NPP primary circuit) to the steam generator (SG) and transfers heat to the boiling water of the second circuit. Saturated steam is supplied from the steam generator to the high pressure cylinder (HPC) of the steam turbine. Part of the live steam from the steam generator enters the superheater. Before being superheated, the exhaust steam from the HPC is partially dried in the separator (S), where some water is separated from the wet steam, and then returned to the circuit with bypass of the low pressure cylinder (LPC) of the steam turbine.
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The thermal circuit of an NPP introduces a risk factor not found in fossil fuel power plant. In an NPP, If saturated steam is supplied to a turbine, whose outlet pressure is 5-4 kPa, moisture in the last stages of the turbine will be unacceptably high; this may lead to steam turbine failure.<img src="/view.aspx?si=154033/9-08-RankineMoistH2OR.PNG" alt="Thermal Efficiency of Steam Turbine Cycle NPP with PWR" align="left"/>This application calculates the thermal efficiency of a steam turbine cycle in a Nuclear Power Plant (NPP) with a Pressure Water reactor (PWR).
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Pressurized water flows from the nuclear reactor (NPP primary circuit) to the steam generator (SG) and transfers heat to the boiling water of the second circuit. Saturated steam is supplied from the steam generator to the high pressure cylinder (HPC) of the steam turbine. Part of the live steam from the steam generator enters the superheater. Before being superheated, the exhaust steam from the HPC is partially dried in the separator (S), where some water is separated from the wet steam, and then returned to the circuit with bypass of the low pressure cylinder (LPC) of the steam turbine.
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The thermal circuit of an NPP introduces a risk factor not found in fossil fuel power plant. In an NPP, If saturated steam is supplied to a turbine, whose outlet pressure is 5-4 kPa, moisture in the last stages of the turbine will be unacceptably high; this may lead to steam turbine failure.154033Fri, 04 Mar 2016 05:00:00 ZProf. Valery OchkovProf. Valery OchkovSteam expansion in the turbine on the h-s (Mollier) chart
http://www.maplesoft.com/applications/view.aspx?SID=154034&ref=Feed
This application shows how to create:
<UL>
<LI>a h-s (Mollier) chart
<LI>and place and isobar, an isotherm, and isochor of steam on the chart
</UL><img src="/view.aspx?si=154034/12-1-expansion.png" alt="Steam expansion in the turbine on the h-s (Mollier) chart" align="left"/>This application shows how to create:
<UL>
<LI>a h-s (Mollier) chart
<LI>and place and isobar, an isotherm, and isochor of steam on the chart
</UL>154034Fri, 04 Mar 2016 05:00:00 ZProf. Valery OchkovProf. Valery OchkovThermal Efficiency of the Combined (Binary) Cycle
http://www.maplesoft.com/applications/view.aspx?SID=154035&ref=Feed
This application calculates the thermal efficiency of a steam turbine (based on a Rankine cycle), combined with a gas turbine based on the Brayton Cycle)<img src="/view.aspx?si=154035/14-1-GSU.PNG" alt="Thermal Efficiency of the Combined (Binary) Cycle" align="left"/>This application calculates the thermal efficiency of a steam turbine (based on a Rankine cycle), combined with a gas turbine based on the Brayton Cycle)154035Fri, 04 Mar 2016 05:00:00 ZProf. Valery OchkovProf. Valery Ochkov