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Comment Toyota you have a problem & anonymous posts (Score 0) 482

So i would say am some what of an expert and have a few engineering degrees to back it up. Her is the recap there is a problem but rather than try to find it due to its complexity and lack of ability we get this. Also I have posted 3 anonymous and they all got deleted. The just of the problem is this toyota went f-16 style and choose to fly by wire with the throttle of the car the component that controls speed. No there is no physical link between accelerator and throttle body. Before cruise control used to be completely disengaged if the brake was hit since the servo would not be physically controlling the wire. No all control is computer controlled of the throttle body so the redundant system that was in place was removed 1st mistake. Second before sometime cruise controls may act up due to control system design which needs to properly take into account all inputs and even reaction of the control system again if the car would act up by applying the brake problem would be solve their wore a few recalls before for cruise controls on various cars but no major impact cause brakes can be applied. There are control system bugs that you can take 100 comp sci developers and they will never find it since it is a design bug in the control system aka the governing equations for the system and well if you do not use any but rather treat it as a state machine guess what that is your control look and a horrible one at best.

Comment Email me (Score 1) 131

Email me jgonzalez@renasi.net. Before you try to get terminals and so forth, think of what they really need? Is it mainly high quality video, will they want to display a sort of interactive art that is crystal clear or is this a kiosk with a vga display. Before your start coming up with a solution see what the end experience is supposed to be. Streaming or just copying content is not always the best solution. What is the budget for the project, and what are your deadlines? I think it is great to talk about all the different solutions that you can use but the problem is that you have to be clearer than just terminals for a museum, and the connection to dvd player suggestion may be that some of these supposed terminals may act more just for art that is displayed at intervals, so a good quality plasma and a dvd player would be adequate maybe based on budget constraints. Maybe they may want high quality content that changes at intervals. It all depends on the budget, the interactivity that they want (meaning do they already have adobe flash app done or will you have to include this as part of the system cost?) Like I said email me it seems like a nice project but make sure the solution is adequate for the theme they are going for.

Comment Re:Bay bridge fix (Score 1) 407

Well the fix is only for tension. If you look at the pic the crack is in the bottom of the eye bar. meaning the center of the center of the eye bar tried to move in the direction of the crack (compresion force) but cracked the eye bar since it is the portion that has the highest stress concentration. Most of these eyebars are supposed to be more for tension but in any structure you have tension and compression depending on the load. I do have an eit meaning am board certified to work under a PE. Since this bridge is old we can not assume anything but look at the facts. If the crack is caused by compression why fix it with tension no matter how good you weld the fix, if the welds experience stress this thing is going to come flying of. You have to weld in a matter so that the weld experience compression not tension regardless of what ever fix you come up with. You can also put small sensors on the members of the bridge so you can see the movement of the members, the crack can stem from movement that the bridge experienced on an earthquake regardless the cause what ever the fix do not weld in a mater that the welds see tension or else the fix will come of.

Comment Bay bridge fix (Score 1) 407

According to the pics it seems evident to me that the cause of the crack is due to compression forces, if it was do to tension the crack would be on the top. The beam is able to rotate and shares both compression and tension forces depending on the load at the time. By using their solution and tension rods is an adequate solution for tension but the reinforcement is needed in compression so tension rods will not work, you would need something to handle the same compression forces that the beam is supposed to handle and you would need to weld it in a manner that the weld is not under stress while experiencing compression. The fix came of because the rods may be adequate to handle the tension forces, but when under compression the complete rig can come flying off even if welded. Tell them to email me I need work, not a PE but I do have a bit of experience and am able to work as a civil engineer. Tell them to send me an email at ctraveler_22@yahoo.com not 22 just personal email that I hardly use due to spam.

Comment so where is the open project (Score 1) 259

I want the hw and opensource software for the radar system. I think its cool just to mess with but am i the only one that is concerned that this multi billion dollar plane has opensource radar meaning it is probably now easy to jam or detect the plane just by the radar signature. I saw an order for a few of these cars to russia, china, iran, venezuela, north korea. Yeah and people complained that they wore trying to shoot down the F22 project, very stealthy.

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