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DNA: variations on a theme in MayaIn this tutorial, we’ll explore different methods for modeling, rigging, and animating DNA. There are many ways to approach this macromolecule in Maya and each has its merits depending on what the model will be used for in your scene. We’ll start with a simple ‘plank’ DNA model that is roughly based on what is known about the molecule’s proportions, and then look at different ways to deform it. Next we’ll import a PDB coordinate set for B-DNA and experiment with different representations using particles. These first two methods assume that the helix does not need to unwind and melt. Finally, we’ll go over a programmatic approach to building DNA using PDB data for a single base pair – this method will allow us to twist and unzip the double helix.
Modeling plank DNA
In this first exercise, we’ll create a stand-in model for B-DNA that could be useful in schematic animations where atomic resolution is not required and melting of the double helix is not necessary. Here’s a quick overview of the process: 1) model a base pair with polygons, 2) animate its rotation and elevation to use the ‘animated snapshot’ tool, 3) create 2 NURBS curves slightly offset from the base pair, 4) use the ‘animated sweep’ tool to extrude those circles and create the backbone and finally 5) ‘duplicate special’ to create additional helical turns to the model prior to rigging.
Although we’ve reviewed B-DNA’s characteristics above, let’s also have a PDB-derived cartoon model in our scene to make sureWeb 2.0 – More than Social NetworkingWeb 2.0 was meant to revolutionise the way people interact both at home and at work. Yet to date the technology appears to be firmly ensconced in the consumer marketplace where individuals are now highly familiar with the ease of collaboration via Facebook and the value of wikis and blogs.
Just how receptive is the corporate market to this new way of working? For the last 10 years technology has done little more than replicate the working practices of the past 30 years, simply adding speed and convenience. But users now want and need to see this consumer Web 2.0 style technology deployed in the corporate workspace to improve productivity, collaboration and information sharing.
But are businesses buying in to the concept of the new office environment based upon less hierarchies, team oriented working and cross functional contribution? Are they attracted by opportunities for interacting online with customers and suppliers? Do they understand the potential cost savings associated with web based technology delivery that drives out the need for desktop based applications, hence reducing support and maintenance costs? Or is the continued media focus on Web 2.0’s role as a consumer facing tool undermining its corporate credibility? Web 2.0 – More than Social Networking is a research study that looks at current levels of Web 2.0 adoption and understanding across the UK. On behalf of Parity, Bournemouth University asked businesses whether or not they had invested in Web 2.0, and the business reasons behind the decision making.
The results reveal endemic misunderstanding andBuilding a Mini-Sumo RobotBuilding a mini-sumo robot using the IntelliBrain™ robotics controller is a great way for you to learn about robotics and Java™ software development. The RoboJDE™ Java-enabled robotics software development environment (included with IntelliBrain) allows you to download the example mini-sumo robot application discussed here into your IntelliBrain controller. With RoboJDE you can modify the example mini-sumo application or write your own mini-sumo program to improve the competitiveness of the robot.
Mini-sumo is a competition between robots based on Japanese wrestling – “sumo” is the Japanese word for wrestling. Similar to traditional sumo matches, two opponents (robots) face each other in a ring named a dohyo – see Figure 1. The object is to stay in the ring while pushing the opposing robot out of the ring. The robot that stays in the ring the longest wins the match.
Mini-sumo robots are small autonomous mobile robots designed specifically for sumo style competition. The mini-sumo robot competition rules restrict the robot length and width to 10 cm x 10 cm, but do not restrict its height. In addition, the robot cannot weigh more than 500 grams. Unlike larger battle robots, mini-sumo robots are not allowed to damage the opponent robot, they are only allowed to push it off the dohyo.
All the hardware components you will need to build the robot discussed here are readily available. A mini-sumo robot can be assembled in a few hours or less. Once you have assembled your robot, you can load the mini-sumo example program included with the RoboJDEHow to change the in car light bulbsFirst thing you got to do is take off the plastic covers on the ceiling light. (circled red). You do it by taking a knife or a small flat screwdriver and you pull it off by pushing the knife in the arrow direction. Then after you have removed the plastic covers off, you will see two screws in the holes. Unscrew these out and pull thelight will fall off like in the pic. Then just pull it off.
After the light is off, unplug these connector – it may be more in your case. After you have the light free. Take off the white plastic lid by pressing the red circled point in the arrow direction and pulling it upwards. After that, you have the access to the bulbs. They are 5W bulbs. After you change the bulbs do the reverse to get the light back on.
After you have removed the light off the ceiling. You will see a nut that holds the aerial base to the cars roof. Unscrew the nut and take off all contacts off the screw. (arrows yellow). To get the base off, press it from inside the car upwards and it will pop out.(blue arrow) And that is it, now put the new base in. put all the contacts on the new base screw and tighten the nut again
Download pdf How to change the in car light bulbsBMW Tightening Torques Manual PDFExtract from company standard BMW N 600 02.0 The maximum tightening torques are: Only applicable to shaft screws with metric standard and fine threads acc. to DIN 13, sheet 13 and nuts with height of 0,8 x d acc. to DIN 934 and only for a µ total = 0.125 (screws phosphatized, screws untreated or galvanized. Lubrication condition: unlubricated and also oiled). For cadmium-plated screws or nuts (µ total = 0.08 to 0.09) the tightening torque with screw material at the same level of utilization ca. must be 30% less than shown in the table.
The values specified in this table apply to all screw connections conforming to the aforementioned conditions. Not applicable when using a different surface or lubricant condition on the thread, or if the height of the nut differs. Not applicable to necked-down bolts, self-tapping screw connections or to connections between parts made of different materials. Important! Maintaining specified tightening torques is vital for performing repair work to a professional standard. This presupposes that the torque wrenches required for this are subjected to a regular inspection. Approved torque testing equipment is listed in the catalogue of workshop equipment planning documents.
Download BMW Tightening Torques Manual PDFPostini IM Security User’s Guide pdfWhat is Postini IM Security? Postini IM Security is a service that helps protect your computer and the company as a whole from unwanted and malicious instant messaging (IM) content. IM has become a valuable tool for business communications, but as the use of IM continues to grow there’s an increased risk of malware infection (IM worms and viruses), spim (IM spam), and other security threats. This service provides protection for instant messaging by:
• Blocking IM worms and viruses
• Filtering incoming IM messages for spim
• Filtering message content based on your company’s messaging policies
• Allowing or disallowing file transfers based on your company’s messaging policies
• Blocking IM file transfers that contain viruses
How does this affect me? Once Postini IM Security is activated, you’ll be prompted to register your screen name while using your IM client. For details, see the next section, “How to Register for Postini IM Security”. To connect to IM at work, you must be a registered user. Your buddies and contacts don’t need to be registered to send instant messages to you.
Get Postini IM Security User’s Guide pdfTest Drive 6 - Games Cheats Hints & Trainer PC GuideTest Drive 6 is the last twitch of a dying breed: the arcade races. Everyone wants super realism and car crashes that defy the common sense and on top of that, what little market was left for this genre it was completely taken by the NFS series. We also have to admit that the last Test Drive wasn’t the real competitor we expected it to be so it was pretty easy for it to get lost in the shadows. Here are some cheats to remind you of those old times. Cheat mode: Enter one of the following names to activate the corresponding cheat function.
All cars - DFGY All tracks - ERDRTH All quick race tracks - CVCVBM No quick race tracks - OCVCVBM Shorter tracks - QTFHYF All challenges - OPIOP No challenges - OPOIOP Disable checkpoint times - FFOEMIT Enable checkpoint times again - NOEMIT Stop The Bomber mode - RFGTR $6,000,000 - AKJGQ Honda bike - Honda XR Stop The Bomber mode (alternate): Catch all the speeders on the Paris, Rome, New York, Hong Kong and London tracks in cop chase mode. Stay on track: When you are going around a sharp corner at high speeds, you will often go off of the track and lose speed and risk of losing your place in the race. To prevent this, simply let off the gas completely at the middle of the corner until you start to skid. Do not panic. When you start to skid, accelerate again and youTaming the Multi-core BeastProfessor Brian Vinter Concurrency vs. Parallelism Designing parallel systems is very hard • But sometimes necessary • Designing concurrent systems is surprisingly easy Concurrent systems can transparently utilize an underlying parallel system If your program is concurrent, and with sufficient concurrent operations, you don’t have to design for a specific number of processors Parallelism News flash: Moore’s law is dead since October 2004
This means that increased performance must come from using more processors How much of a Pentium 4 processor is actual processing power? Next generation processors are all multi-core Concurrency Concurrency it the natural way of things Serial algorithms are just the way we are trained… All (most) new CPUs are hardware threaded • Why? (hint: how far is a nano-second?) The basic assumption behind hardware threading is that your application is multithreaded • Otherwise there is little advantage
Download Taming the Multi-core BeastAvoiding Fuel Starvation in the BMW E36 M3 via the Installation of Twin Fuel Pumps Manual PDFUnder racing conditions, the engine in the BMW E36 M3 may “starve” for fuel when the amount of gasoline in its tanks falls below a certain level. This Application Guide details the installation of twin fuel pumps on a 1995 M3 Lightweight to alleviate this problem. The E36 3 series1 uses a molded one-piece plastic fuel tank under the rear passenger seats. A small passage over the driveshaft connects the two tank halves. Fuel is added through the filler pipe.
Fuel is extracted from the right-hand-side2 (rhs) of the fuel tank via an in-tank fuel pump. The fuel passes through a filter and pressurizes the fuel rail, to which the injectors are attached.
Download Avoiding Fuel Starvation in the BMW E36 M3 PDFXIII - Games Cheats Hints & Trainer PC GuideXIII is a first person shooter that uses an unusual technology: cell shading. This allows for a comic book aspect to dominate the entire gameplay experience to the very speech bubbles feature. Unfortunately, this was also its downfall as it was plagued by numerous bugs that no patch could correct. Cheat mode Press [F2] during game play to display the console window. Type one of the following codes, then press [Enter] to activate the corresponding cheat function.
Full ammo for current weapon - maxammo Restore health to 100% - healme 100 Big feet and head with tiny body - superdeform Changes blood to flowers and blood splatter on walls to lip marks - flowerpower 1 Player only allowed to move; repeat to deactivate, may freeze game if active during flashback - playersonly Kill your character - suicide Instantly end game - quit Better sniping accuracy When in sniper mode, zoom in. To steady yourself for greater accuracy, sit there and do not touch anything to look or move for about five seconds or until he stops moving around. You can now look around with perfect dead aim accuracy. Quick gun At the start of the game, run through the back door rather than going to the man at the front. Note: Hit him in the head and he will die faster. More ammunition Wait until an enemy reloads his weapon before killing him. Kill him before he fires his gun and you will get a full magazine for your weapon. Get
