ferdinandjproa @timely_pace@qoto.org
I have enough free time today to make some online posts. A sort of a quiz and the answers will be given in a draft form discussing inductor-capacitor (LCF) filter with input (source) voltage derived from full wave rectification. Textbooks discussing system feedback and control are recommended along with basic electronics engineering resource materials on basic power supply engineering.
preparing outlines for a draft on refresher analysis of inductor-capacitor filter LCF with full wave rectified voltage source
W^+ boson decays into an outgoing lefthanded top quark and outgoing lefthanded anti-bottom quark, seeing such interaction in the split up of involved fermions into + & - energy modes
terms that contain interactions of w^+- vector gauge bosons with members of lepton family. fermions involved expanded into + and - energy modes from such we get, for example, the term for the decay of w^+ vector bosons into an outgoing neutrino and outgoing positron, the anti-particle of electron
in this (1+1)-dimensionally reduced form of GR, the form of the conformal field is handed down by an auxiliary field not from the equation of motion for the conformal field. this auxiliary field is put in by hand and the acceptable form must satisfy a constraint resulting from the equation of motion for the conformal field.
in the static setting, it's straightforward to establish correspondence to Schwarzschild solution yet, there is also the temptation to consider a setting where the fields evolve with both lower dimensional coordinates
the forcing function is a full wave rectified voltage, we want to obtain for the forced response, which is the current i(t) but we have to perform first fourier analysis on the forcing function to get its fourier series
additional ongoing customization work to make this ordinary JBC 30-ampere battery charger to operate on automatic during charging and discharging operations and making an auxiliary 18-volt DC output to feed the DC input of 13.8-volt regulators for vhf/uhf communication equipments
(I’m just rehearsing how to sell my own product)
Instead of buying switching power supplies (or switch-mode power supplies) for radio transceivers i rig my own out from an ordinary battery charger that i’ve improvised to operate on automatic during charging operations that will also provide an auxiliary 18-volt DC source, the voltage of which must pass through an LC ripple filter to screen out the 60-hertz humming especially during the transmit mode and then to the 13.8-volt regulation stage to give the necessary voltage level for the transceiver.
Most commercially available switching power supplies can operate only to provide the regulated 13.8-volt source but cannot at the same time operate as battery chargers due to high continuous current required in the charging operation. My rigged setup can perform said dual tasks and with an addition of automatic transfer switch can serve the automatic power requirements of radio repeaters.
(I don’t mind my friend called me old school)
i've looked this up in online shopping sites, this belongs to vintage sale. this is exactly the same type of glove i used way back in my elementary school children's baseball years, the same glove during my highschool softball years but unfortunately, when i was in college, i lost interest playing so i sold mine. then in 2017 i have re-acquired that exactly same type of glove that would be as old as my own
kini nuon ma-as na gyud kaayo ta tan-awon ani! asa ba ni dapit ha, limot man ko, klaro gyud nuon sayo mata bisan usa ra oras tulog ragid kaayo nga bilar
i have to take some measurements today and it might be advisable to carry out the measurements not just once especially doing them first time under mainline power supply derived from power inverters driven by solar panels. inverters have much noise and emi that could interfere with the digital operations of measuring instruments to give false readings
loosely call m the rest mass of the particle and Lorentz symmetry says that this property of the particle is invariant as we apply lorentz group of transformations on the components of the four-momentum. that is, this mass stays as it is for an observer regardless of his motion relative to the particle he is watching. the thing i’m a little curious about is that what happens if lorentz symmetry breaks for as far as i am concerned, lorentz symmetry keeps the kinematics simple and my belief is that this kind of simplicity is unbreakable!
having to spend more time on design and construction works in customized electronics these past few days
further design adjustments to be made in line with some specifications recommended primarily for vhf radio repeater power supply applications thankfully i was able to start working on the project this afternoon
I feel most comfortable and confident to start with energy conversion law to arrive at an equation that sums up the initial torques acting on an armature of electric motor. This is just a review exercise in ece subject but I’ve tried approaching the problem from a very basic physics law I mentioned in a way to verify or to derive the torque equation in its ready form presented and discussed in my resource material that is mainly an engineering text that assumes its engineering students to have already mastered the basic background on how that torque equation came to be.
