CrazyEngineers Forum |
- Religion is Knowledge too!
- Autonomous Mobility Robotics, action-perception update cycles... help
- Cave Homes
- Vacuum packaging machine
- Requirement of some raw meterials.
- Foundation Engineering
- CVT or manual transmission
- Well Foundation
- Machine Foundation
- Pile Foundation
- RubyConf India 2011 28th, 29th May, 2011 - Royal Orchid Hotel
- Earth pressure Theories & Retaining Walls
- Shallow Foundation
- Lecture - 32 Analysis of Complete Vapour Compression
- Lecture - 31 Expansion Devices
| Posted: 25 Apr 2011 11:35 AM PDT Watch this New Ideas Company TV commercial. Religion is knowledge, too. Bringing religion back to school. |
| Autonomous Mobility Robotics, action-perception update cycles... help Posted: 25 Apr 2011 10:35 AM PDT Hi, i have this homework problem, that I am having a hard time with. I was wondering if anyone could help me out. Thanks for any advice you can give me. A robot is assumed to be moving along a straight line (the x-axis) with approximately constant velocity ‘u’. Its motion is modeled by the following equation: where: xi is the initial position at t=0 x is the position at time t u is the (assumed) constant velocity The initial position is established by a GPS reading and there are periodic GPS updates thereafter. As discussed in class, the equation above is just a model of the system motion, and there is some uncertainty (error) in the values it predicts. A GPS measurement is periodically used to correct (improve) our knowledge of the exact position of the robot. The GPS readings are available every second and are provided for the moving robot in the table below. Time ‘t’ (seconds) - GPS position (feet) 0 - 2 1 - 4.25 2 - 7.3 3 - 9.25 4 - 12.3 5 - 14.7 Other relevant data are as follows: Variance of GPS position estimates = .04 feet2 u = 2.5 feet/second System (motion model) noise variance = .09 feet2 Complete five full action-perception update cycles of the KF process to come up with the best estimate of the robot position at t= 5 seconds. Some points to note: · There are 5 steps in each KF cycle! · What variance does one start with? The first reading is obtained through a GPS measurement! Thanks again, Frank |
| Posted: 25 Apr 2011 09:28 AM PDT I just graduated as a Civil Engineer. I have always had this idea of building artificial cave homes. Basic idea is inserting a 'cartridge' underground a lot like an RV with all the kitchen/bath/power/AC ect. Then build artificial cave living space around it. (inside can be pleasant home, mainly out side look as though its a natural cave) My question is what are the basic issues I need to investigate? this is what I have thought of.
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| Posted: 25 Apr 2011 09:17 AM PDT Vacuum packaging machine is generally used to seal the bags and provide safety to the items or food. This is the machine which has been provided by a manufactures namely orved.it since 25 years. Orved .it provide a high quality machine with a minimal cost starting from $60. For more details please visit to : Vacuum Packing | Vacuum packing machine |
| Requirement of some raw meterials. Posted: 25 Apr 2011 07:28 AM PDT Hi there, Recently, I started small industry for making printed circuit boards and some type of PCB boards as beginning. So I am looking for a vendor who can supply machines and technology and requirement raw materiel. If you have any idea then, please reply to me. thanks lot Barbarino Jiangxi |
| Posted: 25 Apr 2011 05:38 AM PDT Lecture Series on Foundation Engineering by Dr.Mahendra Singh, Department of Civil Engineering, IIT Roorkee. |
| Posted: 25 Apr 2011 05:35 AM PDT hello all, i was pondering that what kind of transmission would be better for an all terrain vehicle of 10 bhp engine, top speed 60kmph and car weight 300 kg. Continuously variable transmission gives a lucrative option over conventional gear box but its not reliable. On the other hand gear box gives jerky motion to the vehicle while shifting to other gears. Help me on this. |
| Posted: 25 Apr 2011 05:34 AM PDT Lecture Series on Foundation Engineering(Well Foundation) by Dr.Priti Maheshwari, Department of Civil Engineering, IIT Roorkee. |
| Posted: 25 Apr 2011 05:26 AM PDT Lecture Series on Foundation Engineering(Machine Foundation) by Dr.Priti Maheshwari, Department of Civil Engineering, IIT Roorkee. |
| Posted: 25 Apr 2011 05:16 AM PDT Lecture Series on Foundation Engineering(Pile Foundation) by Dr.Priti Maheshwari, Department of Civil Engineering, IIT Roorkee. |
| RubyConf India 2011 28th, 29th May, 2011 - Royal Orchid Hotel Posted: 25 Apr 2011 05:03 AM PDT ThoughtWorks India, together with the Innovation and Technology Trust and the Indian Ruby Community, is hosting RubyConf India 2011 on 28th, 29th May at the Royal Orchid Hotel, Old Airport Road, Bangalore. RubyConf is an annual conference organised by Ruby Central which is a non-profit organisation dedicated to advocating the Ruby programming language. Last year's RubyConf India, also hosted by ThoughtWorks, was a phenomenal success, with over 400 attendees from 29 cities across the globe. Registration Registration for RubyConf India 2011 is open. To avail the early bird discount, register here Speakers We already have a few renowned Ruby speakers lined up for the event, including: • Yehuda Katz - member of the RoR and jQuery core team • Chad Fowler - author of "The Passionate Programmer" • Ola Bini - Core-committer to JRuby since 2006 Call For Proposals We are still accepting proposals for the event. If you would like to speak at RubyConf India 2011, click here Sponsorship If you would like to be a sponsor for the event, please visit RubyConf India 2011 or send a mail to sponsors@rubyconfindia.org Contact us To know more about RubyConf India 2011, contact: Breitner de Sousa Email: breitner@thoughtworks.com Phone: +91 800 777 8330 Source: Email from Organizers |
| Earth pressure Theories & Retaining Walls Posted: 25 Apr 2011 04:20 AM PDT Lecture Series on Foundation Engineering(Earth pressure Theories & Retaining Walls) by Dr.Priti Maheshwari, Department of Civil Engineering, IIT Roorkee. |
| Posted: 25 Apr 2011 04:12 AM PDT Lecture Series on Foundation Engineering(Shallow Foundation) by Dr.N.K.Samadhiya, Department of Civil Engineering, IIT Roorkee. |
| Lecture - 32 Analysis of Complete Vapour Compression Posted: 25 Apr 2011 04:00 AM PDT Here is a Lecture on Refrigeration and Airconditioning by Prof.M.Ramgopal from the Department of Mechanical Engineering IIT Kharagpur. Discuss this topic with fellow mechanical engineers, share your ideas, ask questions and doubts in this discussion. |
| Lecture - 31 Expansion Devices Posted: 25 Apr 2011 03:58 AM PDT Here is a Lecture on Refrigeration and Airconditioning by Prof.M.Ramgopal from the Department of Mechanical Engineering IIT Kharagpur. Discuss this topic with fellow mechanical engineers, share your ideas, ask questions and doubts in this discussion. |
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