MATSNL is a package of MATLAB M-files for computing wireless sensor node
lifetime/power budget and solving optimal node architecture choice problems. It is intended
as an analysis and simulation tool for researchers and educators that are easy to use and
modify. MATSNL is designed to give the rough power/ lifetime predictions based on node
and application specifications while giving useful insight on platform design for the large
node lifetime by providing side-by-side comparison across various platforms.
This application provides much functionality for creating data-driven reports, including preview, graphics, and formatting. There is no documentation so you may have to work with it awhile, but there is a demo on how to use it, and the functionality is rich.
A bluetooth SMS patcher Java ME application I made quickly after I thought about making one.
What is does is to use JSR-82 (Bluetooth API) to send a String msg, String dest to another phone running shin-chan, and this phone will try to send it as SMS using JSR-135 (WMA).
The upload is a Netbeans 6.0 (the ver. available back then) project. Hope this code will help someone
Voice dictionary for mobile - search and play wav files (voice dictionary could be obtained from stardict web site)
For Netbians project with Java MIDP or as example how to use subject (Java MIDP audio). Tested on Nokia 5310
Quake 3 s MD3 Viewer (july 13, 2007), loads and displays a player and a weapon.
Supports lighting, texture mapping and animation.
Includes a sample player model with weapon. See README for how to use it.
Note (1): it uses the POSIX opendir/readdir functions, which are not implemented in all compilers under Windows (MinGW supports them).
Note (2): This demo works on little endian architectures only.
Libraries: OpenGL, GLU, GLUT, boost, libjpeg.
Files: md3loader.zip (2.4 MB)
matlab有限元網格劃分程序
DistMesh is a simple MATLAB code for generation of unstructured triangular and tetrahedral meshes. It was developed by Per-Olof Persson (now at UC Berkeley) and Gilbert Strang in the Department of Mathematics at MIT. A detailed description of the program is provided in our SIAM Review paper, see documentation below.
One reason that the code is short and simple is that the geometries are specified by Signed Distance Functions. These give the shortest distance from any point in space to the boundary of the domain. The sign is negative inside the region and positive outside. A simple example is the unit circle in 2-D, which has the distance function d=r-1, where r is the distance from the origin. For more complicated geometries the distance function can be computed by interpolation between values on a grid, a common representation for level set methods.
For the actual mesh generation, DistMesh uses the Delaunay triangulation routine in MATLAB and tries to optimize the node locations by a force-based smoothing procedure. The topology is regularly updated by Delaunay. The boundary points are only allowed to move tangentially to the boundary by projections using the distance function. This iterative procedure typically results in very well-shaped meshes.
Our aim with this code is simplicity, so that everyone can understand the code and modify it according to their needs. The code is not entirely robust (that is, it might not terminate and return a well-shaped mesh), and it is relatively slow. However, our current research shows that these issues can be resolved in an optimized C++ code, and we believe our simple MATLAB code is important for demonstration of the underlying principles.
To use the code, simply download it from below and run it from MATLAB. For a quick demonstration, type "meshdemo2d" or "meshdemond". For more details see the documentation.
《分析性寫作》，介紹言簡意賅：
The popular, brief rhetoric that treats writing as thinking, WRITING ANALYTICALLY, Sixth Edition, offers a series of prompts that lead you through the process of analysis and synthesis and help you to generate original and well-developed ideas. The book's overall point is that learning to write well means learning to use writing as a way of thinking well. To that end, the strategies of this book describe thinking skills that employ writing. As you will see, this book treats writing as a tool of thought--a means of undertaking sustained acts of inquiry and reflection.
VIP+ is support software for YAMAHA RCX series robot controllers. In addition to the functions
of the previously released "VIP Windows" software, VIP+ includes an easy-to-use GUI (graphical
user interface). VIP+ also allows control by 2 or more controllers or access to a controller from
2 or more clients via Ethernet connection.
● With VIP+ you can:
? Do offline editing of all data used on robot controllers
? Operate and monitor robots connected to robot controllers
? Do online editing of all data used with robot controllers
? Back up and restore robot controller data
● Functions and features newly added to VIP+:
? Ethernet connection to controllers
? Supports data input in spreadsheet software format
? Seamless backup and restoring of controller information such as point data
? Syntax coloring
? Data transfer between the online controller and an offline document by drag & drop
? Executes online commands using a terminal window
? Controller tree and document tree functions similar to Windows Explorer
We introduce a sub-cell WENO reconstruction method to evaluate spatial derivatives in the high-order ADER scheme. The basic idea in our reconstruction is to use only r stencils to reconstruct the point-wise values of solutions and spatial derivatives for the 2r-1 th order
ADER scheme in one dimension, while in two dimensions, the dimension-by-dimension sub-cell reconstruction approach for spatial derivatives is employed. Compared with the original ADER scheme of Toro and Titarev (2002) [2] that uses the direct derivatives of reconstructed polynomials for solutions to evaluate spatial derivatives, our method not only reduces greatly the computational costs of the ADER scheme on a given mesh,
but also avoids possible numerical oscillations near discontinuities, as demonstrated by a number of one- and two-dimensional numerical tests. All these tests show that the 5th-order ADER scheme based on our sub-cell reconstruction method achieves the desired accuracy, and is essentially non-oscillatory and computationally cheaper for problems with discontinuities.
