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Showing posts from October, 2019

Important Links

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DavesImportantLinks.html Say this prayer: it helps! St. Michael the Archangel defend us in battle. Be our protection against the wickedness and snares of the Devil. May God rebuke him, we humbly pray, and do thou most Heavenly host, by the power of God cast into hell Satan and all the evil spirits who roam around the world seeking the ruin of souls. Amen. Here are some important links associated with other projects that I'm working on ... have fun!!! Avoiding Negativity Trap ... My First Book!! With Forgiveness Jesus .... My Second Book!! The Sixteen Sands ... My Third Book!! Back to Engineering table to Engineering Table Can go to Engin Econ ex1 to Engineer Econ ex1 Back to the D E page to Dif Eq page

ElectEngEx1

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ElectEngineerEx1.html Say this prayer: it helps! St. Michael the Archangel defend us in battle. Be our protection against the wickedness and snares of the Devil. May God rebuke him, we humbly pray, and do thou most Heavenly host, by the power of God cast into hell Satan and all the evil spirits who roam around the world seeking the ruin of souls. Amen. Ok, here's my first Electrical Engineering Problem example. It is closely related to the types of physics circuits problems on the Differential Equations table. Using Kirchhoff's Voltage Law (KVL), Kirchhoff's Current Law, and Ohm's Law solve the circuit below. First identify that there is a voltage source Vs, a current controlled current source, a 5 ohm resistor in the first branch, and a 3 ohm resistor in the final branch. There is a known voltage of 20V over the output resistor as well. Our first step is to use Ohm's law to solve for the iy in the output branch: iy = Vo/R = 20V/...

Engineering Economics Example1

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EngineerEconEx1.html Say this prayer: it helps! St. Michael the Archangel defend us in battle. Be our protection against the wickedness and snares of the Devil. May God rebuke him, we humbly pray, and do thou most Heavenly host, by the power of God cast into hell Satan and all the evil spirits who roam around the world seeking the ruin of souls. Amen. Ok, here's my first Engineering Economics Example(using Newnan, Eschenbach, and Lavelle) as the resource. A construction aggregate mixture of a substance needs to contain at least 33% of a substance we shall call material A by volume to be correct. A certain source material has 27% material A and 73% course aggregate sells for $5.00 per cubic meter (m^3). Another source which has 42% material A and 58% course aggregate material sells for $8.6 per cubic meter. Determine the least cost per cubic meter of blended aggregates. Let x = portion of blended aggregates $5.00 / m^3 source Let 1-x = portion of ...

Electrical Engineering Direction

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DCJElectricalEngineer.html Hi, it's David again, and it occurred to me (after I took a little vacation) that I needed to extend more deeply in the Electrical Engineering direction. This move will also allow me to extend my math skills in a broader way than just Differential Equations. Thus, ALL OF MY ALGEBRA AND CALCULUS SKILLS can be shown. In order to facilitate this endeavor I am going to need a new table. Thus the new categories are given below. First as always let's pray: Angel of God my Guardian Dear, with whom God's love entrusts thee here. Ever this day be at my side to light and guard and rule and guide!! Guide me Jesus! Amen! Electrical Engineering Table of Topics 1: Electric Circuits 2: MicroElectronics & Engineering Economics 3: MicroElectronics 4: Electric Machinery 5: Control Systems 6: Computer Logic Circuit Resistance(Nodal Loop Analysis) D...

Differential Equations R-L Circuit

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circuit_R-L_eqn.html Say this prayer: it helps! St. Michael the Archangel defend us in battle. Be our protection against the wickedness and snares of the Devil. May God rebuke him, we humbly pray, and do thou most Heavenly host, by the power of God cast into hell Satan and all the evil spirits who roam around the world seeking the ruin of souls. Amen. Here we shall use the fact that the equation is separable to get to the solution. First notice in the diagram that we have gotten rid of the capacitor. Thus, we eliminate it from our original equation as well. The equation we get is thus L dI/dt + RI = E. Next we have the separating process with and expression in front of dI and an expression in front of dt. Next in the process is integrating over the variables, dI on the left and dt on the right. After checking the appropriate integral table and doing a little algebra .... .... we then solve for I noting that there are two parts of the equation...

Differential Equations RLC Circuit

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circuitRLCdiffeq.html Say this prayer: it helps! St. Michael the Archangel defend us in battle. Be our protection against the wickedness and snares of the Devil. May God rebuke him, we humbly pray, and do thou most Heavenly host, by the power of God cast into hell Satan and all the evil spirits who roam around the world seeking the ruin of souls. Amen. Understanding RLC Differential Equation. (Krantz) * .... Differential Equations for solving Engineering problems. * .... have method that we know to solve these equations. Formulation: Mathematics in physics can be used to make predictions even in the case of electric circuits. This can be shown in the case of periodic motion in particular as in the case of springs or wave motion. Applying the same math to circuits that oscillate can be done as well. When we solved previous differential equations we used the fact that they were Separable. We shall use the same problem solving style in this set...

Star Wars Quiz

innerHTML.html What was Darth Vader's real name? Rick Anakin Josh push the button You can go to DE Ex2 here... D.E. Ex2. You can go to DE Ex1 here ... D.E. Ex1.