| JU-N__-_Engineering Links to shareware and freeware engineering programs. |
| Mikromak Motion analysis systems to record. measure, and analyze motion. |
| Mobile_Computing_in_Engineering Describes research for system solutions for mobile applications. Also describes technologies such as wireless networks and speech recognition. |
| Power_Acoustics,_Inc_ Community Noise Software based on ISO 9613. Description of programme features with screen shots and pricing. |
| Raindrop_Geomagic Provides 3D photography solutions for digital manufacturing, mass customization and quality assurance. Also offers customized software. |
| Refinate An Excel add-in (VBA) counts reference designators on a bill of materials (BOM) and netlists. Features : find duplicates, list all do-not-install parts, create different assembly versions, compare BOM |
| Sciammarella_and_Associates Software controlled holographic interferometry for real-time, non-destructive evaluation. Case studies and white papers, products, clients and jobs. |
| Simtool A free graphical system-simulation and modelling environment for Windows95/98/NT/2000. To design, simulate, and optimize motion control and related systems. Has basic functions that could also be used |
| Solutions_For_Professionals COMSOL provides and supports technical computing software for engineers, scientists, financial analysts and educators in mathematics. |
| Topological_Case-Based_Modeling Provides a new approach to engineering estimation, prediction, and forecasting. |
| VPCompo Allows the calculation of the mechanical characteristics of piezoelectric composites from the initial components. This site describes the application field of the software, and allows the downloading |
| All_About_Dinosaurs Learn about dinosaurs, dinosaur extremes, how dinosaurs are named, and dinosaur myths. Includes print out dinosaur information pages. |
| Daniel_Bensen\'_Opus_Dinosaur Artist's representations of many dinosaurs, with descriptions and links to related resources. |
| Debates_about_Dinosaurs Summaries of major debates in dinosaur paleontology, including dinosaur metabolism, the connection between dinosaurs and birds, and the Cretaceous-Tertiary extinction. |
| Dino_Land Interviews with paleontologists, news on recent fossil finds, virtual tours of famous fossil sites and museums, and a tribute to the greatest dinosaur discoveries of the century. |
| Dinodata Database of basic dinosaur information. Also includes interviews with paleontologists, and news. |
| Dinogeorge Information about dinosaurs, upcoming publications, and a list of dinosaur genera. |
| Dinoman\'s_Dinosaur_Center Dinosaur information and fun site, with quizzes and games along with paleontological debates and articles. |
| Dinosaur_Eggs Information on the dinosaur embryos from National Geographic magazine. |
| Dinosaur_Neill\'s Fan site focusing on dinosaurs in entertainment, but also including news. Includes reviews of video games, books, and movies and television shows. Also includes links, humor, and a discussion forum. |
| Dinosaur_Origin_and_Extinction_ Origin of dinosaurs and birds, categories of dinosaurs, extinction of dinosaurs. |
| Dinosauria_On-Line A tool for researching dinosaurs. Contains the Journal of Dinosaur Paleontology, a collection of essays and e-mail discussions whose topics range from what Archaeopteryx used its wings for, to evolu |
| Dinosaurs__Facts_and_Fiction Information from the U.S. Geological Survey. |
| Jurassic_Island__Dinosaurs General introductory information about dinosaurs including extinction theories and a species gallery. |
| National_Geographic_Dinorama Links to dinosaur articles in National Geographic magazine. |
| Qilong Web published article with ideas and art about dinosaurs. |
| Willo,_the_Dinosaur_with_a_Heart Information about a fossilized dinosaur heart. |
| Albion_College_Vascular_Plant_Image_Gallery Taxonomically arranged images and summaries of family characteristics. |
| Atlas_of_the_Flora_of_New_England Continuing project with annotated checklists of pteridophytes, gymnosperms, and most monocots, with links to dot maps for each taxon. |
| Botanical_Word_Meanings_and_Name_Derivations References on California plant names, meanings and derivations from Latin and Greek roots, with biographical information on western botanists and collectors. |
| Caudiciforms Information and photos of many species of caudiciforms - plants with thickened bases. |
| Dictionary_of_Botanical_Epithets Glossary of Latin terms used in species names, from abbreviatulus to yunnanensis. |
| Digital_Flora_of_Texas_-_Vascular_Plant_Image_Library Large collection of photographs, arranged by family. |
| Discover_Life_-_Plantae Checklists, images, maps, and identification guides. |
| E-Flora_BC Electronic atlas project for the plants of British Columbia, covering life forms from vascular plants to algae, and topics from identification to scientific collections. |
| Flora_of_Europe Photographic herbarium organized by plant family and genus, with botanical descriptions and photos. Personal project, with about 60 families represented. |
| Flora_of_Hokkaido Distribution maps of vascular plants of Hokkaido, Japan. |
| FloraBase_-_The_Flora_of_Western_Australia Authoritative scientific information on 12,000 taxa in Western Australia, including maps, images, descriptions, specimen, and nomenclatural information. Requires registration. |
| Forestry_Images_-_Plants Small collection of plant imagery, from University of Georgia. |
| Glossary_of_Roots_of_Botanical_Names Meanings of over 1000 root words used in scientific names of plants. |
CDI ServicesSearch XSV PKG XMRPKG At Concurrent Dynamics... we develop MultibodyDynamics Simulation (MDS) programsto simulate the dynamics and control of multibodied mechanisms andground/airborne vehicles.Our dynamics simulators model any tree-configured mechanism ranging from asimple pendulum to an orbiting space station. They are designed to 
Assess Concept Feasibility 
The Dynamics Solvers (dynawiz1.dll and dynawiz1.exe) in our MDS programs are based on Lagrangianformulation. They accommodate forward and inverse dynamics, contact constraints,prescribed motion, rigid and flexible body dynamics. They implement an Order(N) algorithm, where N=number of bodies in the system.. Their execution speed issignificantly faster than the Order(N3) method for N >8. For N that is less or equal to 8, their speed is comparable tothat of the Order(N3) method . (September, 2007)The Dynawiz1.dll programruns in theMatlab/Simulink(c) environment. The Dynawiz1.exeprogram runs on any PC that has C/C++ compiler installed. These programsare included in the packages. XSV Packages simulates aircraft and satellite dynamics, and our XMR packages simulatesrobotics and mechanisms. The QX3D program in these packageslets you visualize/animate the simulated objects. These packages bringto you: High fidelity dynamics simulations Fast executions Versatility. They accommodate rigid, flexible, inverse, and constraint dynamics User-friendly fast and efficient model setup. Easy plots generation from the simulations. Easy visualization/animation of simulated vehicle/mechanisms on your browser. Tutorial Visit our Introducing Dynawiz page for a short tutorial on Dynawiz1 and the model editor, BuildX. Itreviews the multibody simulation program design, and its features. DownloadsSee the capabilities of the XSV and the XMR packages (Simulink and DOS/C++ implementation) by downloading themand examples from the xsv_download pageand the xmr_download page. Your browser must be VRML compatible in order to view themodel image or animation that are supplied with the models below. If notso, you can download a VRML plugin( current Cortona VRML client: cortvrml.exe ) fromwww.parallelgraphics.comand install it. After that you should be able to view .wrl files on yourbrowser. XSV Models Cube view/animate A single body satellite Cube_3wc view/animate A single body with 3 wheels for attitude control Sat001 view/animate A satellite with two arrays. Each array has two panels. The bus has 3 wheels for attitude control. Simulates an array deployment. Sat_3panel view/animate A satellite with two arrays. Each array has three panels. The bus has 3 wheels for attitude control. Simulates an array deployment. Dual_spnr view/animate A dual spinner with two jets on the rotor for spin-up. Cmg_sim view/animate A satellite with 4 control moment gyros for attitude control. Simulation demonstrates open loop slewing of the satellite along three body axis individually. Two_sat view/animate Two satellites are initially attached to each other drifting in a LEO circular orbit. At 10 seconds into simulation, they are separated by a force pulse at the interface plane. One vehicle reorients itself into the LVLH attitude, the other maintains attitude hold. Gravity gradient forces/torque are exerted on the satellites throughout the simulation. Chain20 view/animate A satellite with 19 panels floats in a geosynchronous orbit. Its initial bus angular rate is [1 2 3] deg/sec. No external force is applied. XMR Models Robot_arm1 view/animate This is a six link robot arm, where all hinges are 1 dof rotational joints. It moves from a vertical configuration to a commanded configuration in about 30 seconds. Gravity force is in effect. Each joint is a 1 dof revolute joint. Stanford_arm view/animate This is a six link arm, where all hinges are 1 dof rotational joints except for the third hinge which is a 1 dof translational joint. The arm is in a zero gravity condition. Initially, the joint(2) is at a 90 deg position with a -5 deg/sec angular rate. When the simulation starts, a 1 Hz force pulse is sent to the translational joint for 20 seconds. The simulation runs for 30 seconds. No feedback control is employed Bouncing view/animate A ball falls from 10 ft along z-axis, with a 0.5 ft/s velocity in the y-axis. The ball is 1 ft in diameter, rotates initially with [30 30 30] deg/s with its cm offset at [.05 .05 .05] ft from the ball center. The ball bounces in the +y direction with lower height with each bounce. Three_bar view/animate A three bar link is simulated with the tip of bar 3 anchored initially. This anchor constraint is removed at 10 seconds into the simulation. The motion of the three bar link is driven by the gravity force. Pendulum view/animate A pendulum swings from a near upright initial condition. A friction torque dampens that swing over time. Dbl_Pendulum view/animate Two pendulums, 2 ft apart, swing under the action of gravity. There is also a pair of spring & damper force that pushes at the mid point of the two pendulum. A friction torque at the base of each pendulum dampen that swing over time. Inv_Pendulum view/animate An inverted pendulum is mounted on a wheeled cart. Gravity acts on the pendulum. Lateral motion of the cart is the only control available to prevent the pendulum from falling down. The pendulum is initially tilted 10 degrees away from vertical. A linear controller with a controlled angular bias is used to keep the pendulum upright and move to a commanded position. Engine_4cyl view/animate A four cylinder 4-stroke internal combustion engine. A motor starts the engine. Each piston has a simple burn profile on the combustion stroke with a peak force that can be set in the Simulink model. (Animation file takes a little time to display.) The downloads are free and theycome with a demo license that has some modelediting restrictions. To obtain a regular license, write to support@concurrent-dynamics.com. Your are welcome to visit our other sites [Home][Intro][Spacecraft][Robotics][Animation] Recommended websites: Multibody System Dynamics- Research Activities ( http://real.uwaterloo.ca/~mbody/ ) A Collection of Modeling and Simulation Resources on the Internet ( http://www.idsia.ch/~andrea/simtools.html ) Directory of Software Related websites (http://www.the-science-lab.com/Software/ ) 
Thank you for visiting us!Contact Please send yourcomments and inquiries to support@concurrent-dynamics.com. Visitors: 