Matthew 16 [24] Then said Jesus unto his disciples, If any man will come after me, let him deny himself, and take up his cross, and follow me. [25] For whosoever will save his life shall lose it: and whosoever will lose his life for… Read more
“Be ye in the world, but not of the world.”This quote does not actually appear in scripture, but it represents the teachings of Jesus and of the prophets and apostles.* * *“Blessed is the man who does not walk in the counsel of the wicked,… Read more
Hezekiah was the King of Judah, from about 715 to 686 BC. He was a righteous king. He removed the idols from the Jerusalem Temple. He also restored worship of the Lord. Isaiah 38 [1] In those days was Hezekiah sick unto death. And Isaiah… Read more
A rocket vehicle behaves as a free-free beam during flight. The vehicle’s body bending modes can be excited by wind gusts, aerodynamic buffeting, thrust offset, maneuvers, etc. Note that the mass and stiffness properties vary along the vehicle’s length. Furthermore, the mass properties change with… Read more
The First Article of Faith of my church is: We believe in God, the Eternal Father, and in His Son, Jesus Christ, and in the Holy Ghost. The Father and Son have glorified bodies. The Holy Ghost is personage of spirit that can dwell in… Read more
This script demonstrates a Matlab anonymous function with variable coefficients. It also performs integration using the quad function, which uses adaptive Simpson quadrature. This example is from an actual engineering problem for beam vibration. L=27.5; beta=4.73004/L; % sigma1=( sinh(beta*L) +sin(beta*L))/(cosh(beta*L) -cos(beta*L)); % core=@(x) ((cosh(beta*x)-cos(beta*x))-sigma1*(sinh(beta*x) -sin(beta*x))).^2;… Read more
Preliminary notes for acoustic waves: c = speed of sound f = frequency k = wavenumber lambda = wavelength r = radius wavelength is equal to the speed of sound divided by frequency lambda = c / f wavenumber is equal to two pi divided… Read more
Here are some links for libraries of downloadable papers: http://www.science.gov http://ntrs.nasa.gov/?method=aboutntrs http://www3.alcatel-lucent.com/bstj/ – Tom Irvine
Piezoelectric shunt damping systems reduce structural vibration by shunting an attached piezoelectric transducer with an electrical impedance. Current impedance designs result in a coupled electrical resonance at the target modal frequencies. Piezoelectric transducers (PZTs), in conjunction with appropriate circuitry, can be used as a mechanical… Read more
Jesus Christ taught the “greatest commandment” in the following Biblical account. Mark 12 [28] And one of the scribes came, and having heard them reasoning together, and perceiving that he had answered them well, asked him, Which is the first commandment of all? [29] And… Read more