jim@jimhawley.ca

hawley@pathcom.com

New   A homebrew telephone Wardialer pdf 3,026K Download
 
.   The physics of an axial coil gun
    Part I - Fundamentals pdf 1,256K Download
    Part II - Circuit analysis pdf 2,186K Download
    Part III - Spatial distribution of the force field pdf 1,350K Download
    Part IV - Designing a better current waveform pdf 1,039K Download
    Part V - The effect of a bigger slug and an initial speed pdf 597K Download
    Addendum 1 - The current-carrying capacity of copper wire pdf 318K Download
    Addendum 2 - The optimal shape for the coil pdf 981K Download
.   The axial coil gun -- A new approach using FEMM
.1       Using FEMM to analyze a coil from a coil gun pdf 259K Download
.2       Automating the FEMM-analysis of a coil pdf 259K Download
.3       Using FEMM to integrate the circuit equations when the slug is fixed in place pdf 1,662K Download
.4       Using FEMM to simulate the firing of a coil gun pdf 976K Download
.5       A triggering circuit for the high-power SCR in a coil gun pdf 2,217K Download
.6       Triggering and measurement circuits needed to fire a coil gun pdf 545K Download
.   A multiple coil induction coil gun
.1       Using FEMM to design an induction coil gun pdf 1,373K Download
.2       Selecting barrel coils for an induction coil gun pdf 609K Download
.3       Placing bypass diodes across the capacitors pdf 1,063K Download
.   Ballistics of heavy guns
.1       Interior ballistics of a large naval gun or artillery piece pdf 2,823K Download
.2       Interior ballistics: The effect of holes in the web pdf 1,326K Download
.3       Formulae and code for the U.S. Standard Atmosphere (1976) pdf 587K Download
.4       Exterior ballistics of a supersonic sphere pdf 2,033K Download
.   A Visual Basic program for dissecting binary files pdf 692K Download
.   A switching network (PBX) for four ATMs which share telephone lines pdf 1,958K Download
.   The force on a cylindrical steel slug inside a finite solenoid pdf 2,793K Download
.   Calculating the inductance of an arbitrary air-core inductor using the energy method pdf 1,887K Download
.   A homebrew two-telephone intercom system pdf 790K Download
.   Interfacing homebrew hardware with the parallel port on a Windows PC
    Description pdf 432K Download
    HostProgram pdf 144K Download
    PICProgram pdf 2,078K Download
    Out() and Inp() drivers zip 66K Download
.   The Joukowski airfoil in potential flow, without complex numbers pdf 4,203K Download
.   Design of a high-altitude kite
.1       A flexible membrane kite section at high and low altitudes pdf 3,694K Download
.2       A flexible membrane kite section at various angles of attack pdf 1,817K Download
.3       A flexible membrane kite section at various wind speeds pdf 264K Download
.4       De-rating the 2D kite section for a finite span pdf 1,036K Download
.5       The question of winglets for a finite span kite pdf 412K Download
.   Generalizing the Lorentz force to a region containing charge pdf 649K Download
.   A high-voltage Boost capacitor charger pdf 2,828K Download
.   A high-voltage Buck-Boost capacitor charger
    Description and analysis pdf 2,778K Download
    Construction pdf 1,484K Download
.   Internal combustion engines
.1       The stoichiometry of burning hydrocarbon fuels pdf 315K Download
.2       The ideal gas law and a bit of thermodynamics pdf 747K Download
.3       The energy cycle of a gasoline engine pdf 4,548K Download
.   The magnetic field in and around a finite cylindrical air-core solenoid pdf 3,940K Download
.   Modeling a cylindrical permanent magnet with a surface charge of magnetic monopoles pdf 2,698K Download
.   Frequency response of a general-purpose single-sided Opamp amplifier pdf 1,853K Download
.   Aerodynamics using OpenFoam
.1       The Joukowski airfoil at different viscosities pdf 1,661K Download
.2       The lift and drag acting on the tether of a high-altitude kite pdf 2,830K Download
.3       Plotting OpenFoam forces and moments in real time pdf 1,443K Download
.4       Plotting OpenFoam residuals and forces in real time pdf 518K Download
.5       The reduction in drag when drafting behind a tractor trailer pdf 2,198K Download
.6       Running OpenFoam cases in batch mode under the control of a python3 program pdf 186K Download
.7       The shape of a flexible membrane airfoil in a uniform two-dimensional flow pdf 4,127K Download
.   Dual adjustable 36V 3A regulated DC power supply pdf 2,382K Download
.   The solution of Problem #60 of The Open Problems Project:
Transforming irregular polygons using vertex-centroid moves
pdf 1,604K Download
.   Programming Microchip 28-DIP PICs through a USB port pdf 1,544K Download
.   The Rayleigh pulse forming network
    Part I - Analysis pdf 1,282K Download
    Part II - Assessment of sensitivity pdf 1,019K Download
.   A complete hombrew 32-zone security system, with telephone alerts pdf 2,831K Download
.   The shape of the tether of a high-altitude kite pdf 1,729K Download
.   How to solder and breadboard surface-mount components pdf 676K Download
.   Untitled
.1       A VisualBasic subroutine which calculates a fast Fourier Transform pdf 1,177K Download
.2       Amplitude modulation of audio signals using the discrete-time Fourier Transform pdf 560K Download
.   A thermister-governed fan control PCB pdf 299K Download
.   The ideal transformer with a single secondary winding pdf 1,054K Download
.   The ideal transformer with two secondary windings pdf 467K Download
.   The ideal transformer with an active secondary circuit pdf 2,359K Download
.   Physics of a truck pull, using a 2WD pickup truck
    Part I - A simplified physical model captured by a single equation pdf 1,757K Download
    Part II - Enhancements to the dynamics of the simplified model pdf 3,346K Download
.   A homebrew two-minute alarm for roll-up door openings pdf 1,526K Download
.   Converting a Lincoln Hobby-Weld AC stick welder from AC to regulated DC pdf 2,522K Download
.   Physics of a stern-fixed single-blade sculling oar like a yuloh pdf 2,473K Download

jim@jimhawley.ca

hawley@pathcom.com