Models of computation | Automata (computation)
An embedded pushdown automaton or EPDA is a computational model for parsing languages generated by tree-adjoining grammars (TAGs). It is similar to the context-free grammar-parsing pushdown automaton, but instead of using a plain stack to store symbols, it has a stack of iterated stacks that store symbols, giving TAGs a generative capacity between context-free and context-sensitive grammars, or a subset of mildly context-sensitive grammars.Embedded pushdown automata should not be confused with nested stack automata which have more computational power. (Wikipedia).
Implantable defibrillator teardown
Inside an implantable heart pacemaker/defibrillator
From playlist Medical stuff
http://www.mekanizmalar.com This is a flash animation of a hydraulic closed center valve.
From playlist Pneumatic and Hydraulics
4. Pushdown Automata, Conversion of CFG to PDA and Reverse Conversion
MIT 18.404J Theory of Computation, Fall 2020 Instructor: Michael Sipser View the complete course: https://ocw.mit.edu/18-404JF20 YouTube Playlist: https://www.youtube.com/playlist?list=PLUl4u3cNGP60_JNv2MmK3wkOt9syvfQWY Quickly reviewed last lecture. Defined context free grammars (CFGs) a
From playlist MIT 18.404J Theory of Computation, Fall 2020
Torque Converter, How does it work?
Most of us enjoy the smooth and effortless feeling of driving in an automatic transmission car. The driving is effortless because you don’t need to worry about gear changing and you don’t have a clutch pedal to operate. In an automatic transmission car the work, of the clutch pedal, is aut
From playlist Automobile Engineering
ElixirConf 2015 - The road to intellij-elixir 1.0.0 By Luke Imhoff
Learn how naively copying a grammar file from one parser generator to another won't work. Go back to the beginning and learn about lexers vs parsers, but discover that the power of interpolation changes the computational complexity and forces the lexer to be a push-down automata instead of
From playlist ElixirConf 2015
lego technic studless scotch yoke
Here is a video of Scotch Yoke made by Lego Technic lift arms. No Lego bricks used in this design. I guess Lego should manufacture much large pulleys than I use here, so that we could get larger reciprocation motion.
From playlist Lego Technic
Game Programming Patterns 10.1 - (Reading) State Pattern
We read through the State Game Programming Pattern chapter. Links code - [https://github.com/brooks-builds/learning_game_design_patterns](https://github.com/brooks-builds/learning_game_design_patterns) twitter - [https://twitter.com/brooks_patton](https://twitter.com/brooks_patton
From playlist Game Programming Patterns Book
Recurrent Neural Networks and Models of Computation - Edward Grefenstette, DeepMind
This talk presents an analysis of various recurrent neural network architectures in terms of traditional models of computation. It makes the case for simpler recurrent architectures being closer to finite state automata, and argues that memory-enhanced architectures support better algorith
From playlist Logic and learning workshop
Verónica Becher: Independence of normal words
Abstract : Recall that normality is a elementary form of randomness: an infinite word is normal to a given alphabet if all blocks of symbols of the same length occur in the word with the same asymptotic frequency. We consider a notion of independence on pairs of infinite words formalising
From playlist Logic and Foundations
Fixed Swashplate Rotating Barrel
http://www.mekanizmalar.com/fixed_swashplate_rotating_barrel.html An axial piston pump has a number of pistons (usually an odd number) arranged in a circular array within a housing which is commonly referred to as a cylinder block, rotor or barrel. This cylinder block is driven to rotate
From playlist Pneumatic and Hydraulics
Theory of Computation Recitation 5
Theory of Computation Recitation 5 aduni
From playlist [Shai Simonson]Theory of Computation
27c3: Hackers and Computer Science (en)
Speaker: Sergey Although most academics and industry practitioners regard "hacking" as mostly ad-hoc, a loose collection of useful tricks essentially random in nature, I will argue that hacking has in fact become a "distinct research and engineering discipline" with deep underlying engine
From playlist 27C3: We come in peace
Combination of gear drive and slider-crank mechanism. Inventor files of this video: http://www.mediafire.com/file/g440tz6eu1brn9c/HandPunch1Inv.zip/file
From playlist Mechanisms
Animation - How an axial flow variable displacement piston pump works.
Hi Guys, Hydraulic pumps are of various types, axial flow variable displacement piston pump are used in heavy hydraulic construction equipments. Tracked excavator machines commonly use this type of pumps. The advantage of this pump is that, the flow is variable compared to gears pumps in
From playlist engineering explained
http://www.mekanizmalar.com/menu_pump.html This video show how a Gorman-Rupp type rotary pump works.
From playlist Pumps
Theory of Computation Recitation 4
Theory of Computation Recitation 4 aduni
From playlist [Shai Simonson]Theory of Computation
http://www.mekanizmalar.com/rotary_engine.html In the rotary engine instead of having a fixed cylinder block with rotating crankshaft as with a conventional radial engine, the crankshaft remains stationary and the entire cylinder block rotates around it
From playlist Engines
Black Hat USA 2010: Exploiting the Forest with Trees 1/5
Speakers: Meredith L. Patterson, Len Sassaman One of the most difficult aspects of securing a protocol implementation is simply bounding the scope of the attack surface: how do you tell where attacks are likely to crop up? Historically, variations between implementations have led to some
From playlist Black Hat USA 2010