ProtoMol is an object-oriented, component based, framework for molecular
dynamics (MD) simulations. The framework supports the CHARMM 19 and 28a2 force
fields and is able to process PDB, PSF, XYZ and DCD trajectory files. It is
designed for high flexibility, easy extendibility and maintenance, and high
performance demands, including parallelization. The technique of multiple
time-stepping is used to improve long-term efficiency. The use of fast
electrostatic force evaluation algorithms like Ewald, particle Mesh Ewald (PME),
and Multigrid (MG) summation further enhances performance. Longer time steps
are possible using MOLLY, Langevin Molly and Hybrid Monte Carlo, Nose-Hoover,
and Langevin integrators. In addition, ProtoMol has been designed to interact
with VMD, a visualization engine developed by the University of Illinois that is
used for displaying large biomolecular systems in three dimensions. ProtoMol is
freely distributed software, and the source code is available.
BRL-CAD is a powerful Combinatorial/Constructive Solid Geometry (CSG)
solid modeling system that includes an interactive geometry editor,
ray-tracing support for rendering and geometric analysis,
network-distributed framebuffer support, image and signal-processing
tools, and an embedded scripting language.
The package is a collection of over 400 tools and utilities across
over 750,000 lines of source code. Included is support for various
geometric data format conversions, image and signal processing
capabilities, sophisticated ray-tracing based lighting models, network
distributed ray-tracing, massively parallel ray-tracing, animation
capabilities, data compression, image handling, and interactive 3-D
geometric editing. Included is an implementation of Weiler's
n-Manifold Geometry (NMG) data structures for surface-based solid
models and photon mapping.
A Three-Dimensional Structural Finite Element Program
CalculiX Finite Element Models can be build, calculated and
post-processed. The pre- and post-processor is an interactive 3D-tool
using the openGL API.
Notice: The authors acknowledge that naming conventions and input style
formats for CalculiX are based on those used by ABAQUS, a proprietary,
general purpose finite element code developed and supported by Hibbitt,
Karlsson & Sorensen, Inc (HKS) and are used with kind permission from HKS.
Results obtained from CalculiX are in no way connected to ABAQUS.
note: By default the single-threaded solver is used, this can be changed
by setting the OMP_NUM_THREADS environment variable with the number of
processors you want to use.
This is Gmsh with support of OpenCascade.
Gmsh is an automatic 3D finite element mesh generator (primarily
Delaunay) with build-in CAD and post-processing facilities. Its primal
design goal is to provide a simple meshing tool for academic test cases
with parametric input and up to date visualization capabilities. One of
its strengths is the ability to respect a characteristic length field for
the generation of adapted meshes on lines, surfaces and volumes, and to
mix these meshes with simple structured grids.
Gmsh is built around four modules: geometry, mesh, solver and
post-processing. The specification of any input to these modules is done
either interactively using the graphical user interface or in ASCII text
files using Gmsh's own scripting language.
Gmsh is an automatic 3D finite element mesh generator (primarily
Delaunay) with build-in CAD and post-processing facilities. Its primal
design goal is to provide a simple meshing tool for academic test cases
with parametric input and up to date visualization capabilities. One of
its strengths is the ability to respect a characteristic length field for
the generation of adapted meshes on lines, surfaces and volumes, and to
mix these meshes with simple structured grids.
Gmsh is built around four modules: geometry, mesh, solver and
post-processing. The specification of any input to these modules is done
either interactively using the graphical user interface or in ASCII text
files using Gmsh's own scripting language.
Logisim is an educational tool for designing and simulating digital logic
circuits. With its simple toolbar interface and simulation of circuits as
you build them, it is simple enough to facilitate learning the most basic
concepts related to logic circuits. With the capacity to build larger circuits
from smaller subcircuits, and to draw bundles of wires with a single mouse
drag, Logisim can be used (and is used) to design and simulate entire CPUs for
educational purposes.
Logisim is used by students at colleges and universities around the world in
many types of classes, ranging from a brief unit on logic in general-education
computer science surveys, to computer organization courses, to full-semester
courses on computer architecture.
True Type字体管理器管理true type字体的安装、卸载、列表和默
认字体设置。它本来是发布在CLE上的。
这个管理器不直接使用TTF处理应用程序。而是调用相应的模块来处理
其细节。只有几个模块预定义的行为,例如添加、删除、列表。版本0.9
有4个模块:
chitex: For ChiTeX, a Chinese TeX/LaTeX
ttf2pk: Generate pk/tfm for CJK
xfreetype: For Xfsft in XFree86 3.3.x and "freetype"
module in 4.x
xttfm: For X-TT in XFree86 3.3.x and "xtt" module in
4.x, avaiable in both tcl and sh versions.
为了更好地检测和产生字体,一些模块增强了对大五码和国标码的支持。
Dump 1090 is a Mode S decoder specifically designed for RTLSDR devices.
The main features are:
* Robust decoding of weak messages.
* Network support: TCP30003 stream (MSG5...), Raw packets, HTTP.
* Embedded HTTP server that displays the currently detected aircrafts on
Google Map.
* Single bit errors correction using the 24 bit CRC.
* Ability to decode DF11, DF17 messages.
* Ability to decode DF formats like DF0, DF4, DF5, DF16, DF20 and DF21 where the
checksum is xored with the ICAO address by brute forcing the checksum field
using recently seen ICAO addresses.
* Decode raw IQ samples from file (using --ifile command line switch).
* Interactive command-line-interfae mode where aircrafts currently detected are
shown as a list refreshing as more data arrives.
* CPR coordinates decoding and track calculation from velocity.
* TCP server streaming and receiving raw data to/from connected clients.
The Arduino Uno (http://arduino.cc/) is an open source hardware micro-
controller designed primarily for prototyping and experimentation.
Although the devel/arduino port already exists for programming the device,
it will not work properly with the newest Arduino hardware. Previous
versions of the Arduino used an FTDI USB to Serial interface. The newest
Arduino (beginning with the Uno) uses an on-board ATMel 8U2 controller
to emulate a USB to Serial interface with its own custom Vendor ID and
Hardware ID. As a result, NONE of the existing FreeBSD USB to serial
drivers can work with it. This kernel driver supplies the necessary
kernel support for the Arduino Uno on FreeBSD.
Additionally, some 'ACM' USB Serial devices may work with this driver by
manually adding their Vendor ID and Product ID combination to files/ids.txt
Official web site
This is a driver for "homebrew" type serial LIRC reveivers as
described here:
http://lirc.org/receivers.html
It overrides the `normal' uart(4) driver, if you have that driver
already loaded or statically in your kernel (like it is in GENERIC)
then you need to load uartlirc.ko from loader.conf(5) (or manually
via the loader prompt) for the override to work. The driver provides
a /dev/lircX node for each serial port in addition to the normal
tty nodes /dev/cuauX etc, so you can still use other serial ports
normally should you have more than one.
Note: it only supports PCI/motherboard serial ports not ones connected
via USB, for USB you can use mceusb hardware supported via webcamd,
or FTDI hardware supported by comms/lirc natively via libftdi, see:
http://wiki.freebsd.org/WebcamCompat
and the comms/lirc port's pkg-message.