Système canadien de référence spatiale - Calcul inverse géodésique Démonstration en ligne News: CGVD2013 is now available! Natural Resources Canada has released the Canadian Geodetic Vertical Datum of 2013 (CGVD2013), which is now the new reference standard for heights across Canada. This new height reference system is replacing the Canadian Geodetic Vertical Datum of 1928 (CGVD28), which was adopted officially by an Order in Council in 1935. Read more Geodetic reference systems stem from the need to provide a consistent and integrated reference surface for data analysis. This site provides end-users with the geodetic data and tools they need for a range of commercial and private uses. Date modified:
Qucs [ schematic area - dialogs - languages - miscellaneous - tools ] Screenshots of schematic and data display areas The screenshots below show the main schematic and data display area of the Qucs GUI on the lower right corner, the menus and icons at the upper part and the project/contents/component/action/diagram selection on the left hand side. Simple filter in qucs-qt4 Combined schematic and data visualisation. Simple schematic area. Data display with different kinds of data representations (diagrams) and data markers. Data display with 3D diagram. Please note that the actual appearance depends on the window manager (window decorations), the selected type of font and its size and the widget set can be selected by the qtconfig program.
Weller Magnastat Autopsy and Repair » Code and Life Immediately after soldering together my USB password thingy, my solder iron, the family heirloom Weller Magnastat stopped working. Some investigation showed that the base station was providing 24V AC voltage just fine, so I decided to unassemble the handpiece to see if something could be done. Here’s what I found: It turned out my iron was salvageable; read on to learn a bit about the Magnastat and how I was able to repair mine. Magnastat basics The construction of the device is surprisingly simple (see this image): The first (blue) wire from A/C power unit goes straight to the heating element (first red wire with black tube around it). A long tube goes “out” the handle part into the iron tip, and the tip is placed at the head. Note that in my model the tip and the magnastat are one solid piece (magnastat is in the base of the tip), newer models have a separate magnastat and tip, and you can change the target temperature just by changing the magnastat part. Reviving the old Weller
gEDA List of single-board computers One of the first 10 MMD-1s, a prototype unit, produced by E&L Instruments in 1976. The "dyna-micro"/"MMD-1" was the world's first true single board computer.[citation needed] The MMD-1 had all components on a single printed circuit board, including memory, I/O, user input device, and a display. List of single-board computers – computers built on a single circuit board, with microprocessor(s), memory, input/output (I/O) and other features required of a functional computer. ARM based[edit] Other board[edit] ARM9, ARM11[edit] Cortex-M3[edit] Cortex-M4[edit] MYD-LPC435X EVM for NXP LPC4350/4357 ARM Cortex-M3 microcontrollers designed by MYIR Freescale i.MX[edit] OMAP[edit] DragonBoard – Snapdragon-based development kitsIFC6410 – Snapdragon 600 APQ8064 (from Inforce Computing)bStem – Snapdragon S4 Pro APQ8060AB (from Brain Corporation) Rabbit/Z80[edit] Rabbit SBC Signetics 2650[edit] KT-9500 Evaluation board - Signetics 2650 CPU @ 1MHz, 512B of static RAM, ROM monitor and proto area. Xilinx Zynq[edit]
Open Numerical Engineering LABoratory - ONELAB The goal of the Open Numerical Engineering LABoratory (ONELAB) project is to develop a lightweight interface to finite element software for engineering applications. ONELAB allows calling a determined sequence of independent clients (e.g. mesh generators, finite element solvers and other related tools) and have them share parameters and modeling information. The parameters can be controlled and displayed interactively using Gmsh's graphical user interface. Switched reluctance motor Microstrip antenna For users: try out ONELAB-enabled solvers GetDP: A finite element solver for electromagnetism, heat transfer, acoustics and generic PDEs Gmsh: A mesh generator with built-in CAD and post-processing ; Gmsh is the default ONELAB server Onelab/Mobile: Gmsh and GetDP for iPhone, iPad and Android devices For developers: interface your own solvers Python: how to create a native ONELAB client in Python C++: how to create a native C++ ONELAB client in C++ Project management