HDTenEightyP/NetNews huggingface dataset:
From: smith@minerva.harvard.edu (Steven Smith)
Newsgroups: sci.engr.control
Subject: Re: Books on Nonlinear Control
Date: 9 Oct 92 14:31:12 GMT
Article-I.D.: minerva.SMITH.92Oct9093112
Organization: Harvard Robotics Lab, Harvard University

dsimon@atlas.nafb.trw.com writes:

> Hi.  What are some good, inexpensive ( <= $50 ) books on nonlinear
> control?  Hopefully something like a textbook, with examples and
> problems.

I think the best nonlinear control text available is Nijmeijer and van
der Schaft's _Nonlinear Dynamical Control Systems_ (Springer-Verlag,
1990).  This book is at the senior or first year graduate level, and
develops various differential geometric tools as required.  (One main
gripe: for fifty bucks you think Springer could have typeset this book!)

For an undergraduate level textbook, see Slotine and Li's _Applied
Nonlinear Control_ (Prentice Hall, 1991).  This book works entirely in
R^n (you must decide if this is a strength or weakness), and contains
some interesting examples.

Steven Smith
Newsgroups: sci.engr.control,comp.ai,comp.ai.neural-nets
From: parish@cactus.org (Tom Parish)
Subject: Finding an anonymous ftp site for the fuzzy logic community
Followup-To: poster
Keywords: fuzzy logic, ftp site
Organization: Capital Area Central Texas UNIX Society, Austin, Tx
Date: Wed, 7 Oct 1992 23:10:21 GMT

We need a volunteer to provide an anonymous ftp site for the fuzzy 
logic community to place files.  
 
I recently posted a list of files available on Motorola's FREEBBS, 
Aptronix FuzzyNet and the Turning Point but this just doesn't help 
folks at universities on the Internet and our overseas friends are 
just out of luck. I've known this but the barrage of mail I've 
gotten over the last two weeks is have made the point more clear.
 
This is a problem for me since I don't have a place where I can
officially put these files (on Internet). If someone "has" to get 
the fuzzy logic files I posted earlier I can make them available 
on ASTRO at the Univeristy of Texas ... but on briefly.
 
Surely there is some university that has a Sparc station or  
VAX station that has some disk space.  Then we (as a community)
can begin placing useful documents and programs to exchange with 
each other.
 
Yes/No?
 
Thanks,
Tom                                    Fuzzy             Crisp
                                 -            1.0 | True
                                   -           .9 |
  A P T R O N I X    I N C.          -         .7 |
The Fuzzy Logic Technology Co.         -       .5 |
                                         -     .3 |
TEL: 512-331-0813   parish@cactus.org      -   .1 |
FAX: 512-331-0841                            -  0 | False


Newsgroups: sci.engr.control
From: erik@maui.til.com (Erik Horstkotte)
Subject: Re: Fuzzy Control Systems - The Inverted Pendulum
Keywords: Digital Control, Fuzzy Logic, Inverted Pendulum
Organization: Togai InfraLogic, Inc.
Date: Mon, 12 Oct 1992 16:42:01 GMT

This system has been implemented *so many* times in fuzzy logic that
it's starting to drive those of us in the field nuts.  I could send
you the entire fuzzy control system, in source code, and you'd only
need to tune it for your exact hardware.

Unfortunately, that would be *slightly* unethical.

Since the point is probably that you *learn something* about fuzzy
control :-), you could try some of these books:


    Klir, George J. and Folger, Tina A., Fuzzy Sets, Uncertainty, and
    Information, Englewood Cliffs, NJ: Prentice Hall, 1988.

    Kosko, Bart A., Neural Networks and Fuzzy Systems, Prentice-Hall,
    1990.

    Zimmermann, Hans J., Fuzzy Set Theory and its Applications, 
    Boston MA: Kluwer-Nijhoff Publishing, 1985.

I prefer Klir and Zimmermann's books to Kosko's, but a lot of other
people have exactly opposite preferences.  You probably want to
also look into the proceedings of the conferences held by NAFIPS
(the North American Fuzzy Information Processing Society), IFSA
(the International Fuzzy Systems Association), and FUZZ-IEEE.

Send me email if you'd like a PC-readable diskette containing the
full source code for a *simulated* inverted pendulum.  It requires
a VGA display to execute.  It's for a system that is different
enough from what you're doing that I wouldn't have any ethical
problems with it.
-- 
Erik Horstkotte, Togai InfraLogic, Inc.
The World's Source for Fuzzy Logic Solutions (The company, not me!)
erik@til.til.com, uunet!til!erik - (714) 975-8522
Standard disclaimer: the preceding are my opinions, not TIL's.
Newsgroups: sci.engr.control
From: engp2055@nusunix1.nus.sg (VINOD UDHARAM VASNANI)
Subject: Room Sharing for CDC'92
Organization: National University of Singapore
X-Newsreader: TIN [version 1.1 PL6]
Date: Thu, 8 Oct 1992 07:40:28 GMT



Room Sharing for CDC'92
=======================

Looking for a male roomate to share a double room  for the IEEE Conference on
Decision and Control 1992 (CDC '92) to be help at, Tucson Arizona in
December. 
Anyone interested please reply by email.

Vasnani Vinod U
engp2055@nusunix1.nus.sg
PhD candidate
Department of Electrical Engineering
National University of Singapore

Newsgroups: sci.engr.control
From: osm8502@zeus.tamu.edu (Omezee-SaMe Still)
Subject: Need info. on Neural net packages for Pattern classification.
News-Software: VAX/VMS VNEWS 1.41    
Organization: Texas A&M University, Academic Computing Services
Date: Sat, 10 Oct 1992 17:31:00 GMT



Hi!
I am interested in Neural Net software packages, that can be used
for pattern classification applications. I want to use them for
pattern classification in manufacturing. If anyone knows of some
codes or packages that I can either buy or access (ftp) please let 
me know at this email:
osm8502@summa.tamu.edu

Omez Samoon Mesina.
Texas A & M University,
Dept. of Mech.Engg.  


Newsgroups: sci.engr.control,comp.ai,comp.ai.neural-nets
From: parish@cactus.org (Tom Parish)
Subject: How to find - Motorola Fuzzy logic Kit
Followup-To: poster
Keywords: fuzzy logic, education
Organization: Capital Area Central Texas UNIX Society, Austin, Tx
Date: Wed, 7 Oct 1992 23:06:58 GMT

This note is for all of you in universities who sent me mail on how 
to get the Motorola Fuzzy Logic Education Kits.  Hopefully this 
will help you find the kits without dealing with salesman and/or 
distributors. 
 
                   Here are the specifics:
                   -----------------------
 
Contact Fritz Wilson at Motorola. His sole purpose in life is to
help universities get what they need.
 
Fritz Wilson
Tel:            602-952-3855
FAX:            602-952-3621
Internet:       univeristy_support@spshqqm.sps.moto.com
 
FLEDKT05(Education Kit with M68HC05EVM) $600.00
FLEDKT11(Education Kit with M68HC11EVM) $600.00
FLEDKT00(Education Kit without EVM)     $195.00
        FuzzBasic - just the CBT course $ 68.80
 
The Motorola Education Kit includes:
        *Computer Based Training disks on Fuzzy logic
        *Aptronix Fide Demonstration system (can save your work)
                Windows based tool with visual debugging tools
                for developing fuzzy logic applications.
        *Motorola's KBG V2.22 DOS tools for fuzzy logic 
 
     The CBT course runs in MS Windows 3.0 or 3.1. and provides 
     nearly 500 screens of colorful and interactive material 
     that covers the following subjects:
     
             * Fundamentals of fuzzy logic
             * Methodology of design for embedded control
             * Aptronix fuzzy inference development environment
             * A fuzzy logic project
             * Advanced topics
             * Introduction to neural networks
             * Glossary of terms
             * Further reading
             * Review questions at the end of each section
 
     The methodology of design section includes:
     
             * How to analyze and partition the control system
             * Defining input and output surfaces
             * Writing rules
             * Observing model behavior, verifying and tuning as needed 
             * Optimizing systems for target platforms
     
     The advanced topics area includes:
     
             * Alpha Cuts
             * Assertions
             * Compatibility Index
             * Contribution weights
             * Stability weights
             * Adaptability
             * Fuzzy calculus
             * Noise, randomness, ambiguity
             * Higher order fuzzy sets
             * Geometric Representations
   
     I hope you find this helpful.  

                                      Fuzzy             Crisp
                                 -            1.0 | True
                                   -           .9 |
  A P T R O N I X    I N C.          -         .7 |
The Fuzzy Logic Technology Co.         -       .5 |
                                         -     .3 |
TEL: 512-331-0813   parish@cactus.org      -   .1 |
FAX: 512-331-0841                            -  0 | False

Newsgroups: sci.engr.control
From: mxd7977@ultb.isc.rit.edu (ELECTRONIC MUSICIAN)
Subject: Fuzzy Control Systems - The Inverted Pendulum
Summary: How to implement Fuzzy Control in system
Originator: mxd7977@ultb
Keywords: Digital Control, Fuzzy Logic, Inverted Pendulum
Organization: Rochester Institute of Technology
Date: Thu, 8 Oct 1992 19:48:01 GMT

I've recently seen mention of a fuzzy logic demonstration that utilized
its power of control to balance the inverted pendulum.  I am currently a
4th-year senior at RIT, and am enrolled in a class called Real Time
Systems.  In it we are required to develop an electro-mechanical gizmo
which utilitzes a closed loop feedback control system etc.  I am
currently implementing the inverted pendulum problem as my project.  I
was wondering how I would go about implementing fuzzy logic to control
the system.  Here is an overview of how the system is constructed.

Currently, I have a pendulum mounted to a platform which can be moved
back and forth by way of DC motor.  On top of this platform is a fixed
axle which limits the pendulum to only 1 degree of movement.  Attached
to the axle is a low friction pot which I use to determine what the
present angle of the pendulum is.  By sampling this angular position and
feeding it into a 68HC11, I then determine what the present angular
velocity of the pendulum is based on its prior position, and then output
the appropriate command voltage to the motor depending on which way the
pendulum is falling. (NOTE: the PID inside the computer is simplified as
to say that it accomplishes its task)

How would I go about implementing this system using Fuzzy logic instead
of the usual matrix based discrete system solution.  Any insight into
this "fuzzy" world would be most appreciative.

Regards,
Mark Dochtermann (MXD7977)

--
To Sig or not to Sig, that is the question
Newsgroups: sci.engr.control
From: acvazq@lims01.lerc.nasa.gov (GREGORIO VAZQUEZ)
Subject: Software package for Control System Design
News-Software: VAX/VMS VNEWS 1.41    
Organization: NASA Lewis Research Center
Date: 16 Oct 1992 11:14 EST  

	HI,

	I'm looking for Software packages that can help me in Control 
System design Basic tasks.  I have a PC and I use to work in college with a 
Program called CC or Classical Controls.  It performed Laplace and Z 
transformations, Bode and Nyquist plot drawing, root locus and many other 
usefull things.  Does anybody in the group have this program or anything 
similar to it?  I will appreciate your help.

Gregorio Vazquez

Newsgroups: sci.engr.control
From: zwingel@emserver.ee.tu-berlin.de (Reinhold Zwingel)
Subject: Neural Networks and Control
Organization: TU-Berlin, Institut fuer Elektrische Maschinen
Date: Thu, 15 Oct 1992 12:53:35 GMT

Hello World !

I'm looking for an understandable introduction to how
Neural Networks are to be used in nonlinear control problems.

Thanks for all efforts !
-- 
Reinhold Zwingel, TU Berlin, EM 4       zwingel@emserver.ee.tu-berlin.de 
Einsteinufer 11, D-W-1000 Berlin 10
Tel. (004930)314-25357			Fax (004930)314-21133
Who knows Melchior Sternfels von Fuchsheim?
Newsgroups: sci.engr.control
From: kavuri@lips.ecn.purdue.edu (Surya N Kavuri )
Subject: Fuzzy logic and set theory
Organization: Purdue University Engineering Computer Network
Date: Thu, 8 Oct 1992 21:43:44 GMT

  I am just curious.  Are there algorithms developed for
  such concepts as matching and set covering under fuzzy
  logic ?  I even have a difficulty figuring such 
  concepts in fuzzy set theory  

  Surya Kavuri
From: fengxi@prancer.eche.ualberta.ca (Fengxi Zhou)
Newsgroups: sci.engr.control
Subject: Re: Software package for Control System Design
Date: 16 Oct 92 21:54:02 GMT
Organization: University Of Alberta, Edmonton Canada
X-Newsreader: Tin 1.1 PL3

acvazq@lims01.lerc.nasa.gov (GREGORIO VAZQUEZ) writes:
: 	HI,
: 
: 	I'm looking for Software packages that can help me in Control 
: System design Basic tasks.  I have a PC and I use to work in college with a 
: Program called CC or Classical Controls.  It performed Laplace and Z 
: transformations, Bode and Nyquist plot drawing, root locus and many other 
: usefull things.  Does anybody in the group have this program or anything 
: similar to it?  I will appreciate your help.
: 
: Gregorio Vazquez
:
Try MATLAB.  It's a hundred times better.  I have used CC.  I don't want to say
it's junk.  But MATLAB is definitely better.  You may need basic MATLAB plus 
CONTROL TOOLBOX to do the design more efficiently.  Good luck. 
Newsgroups: sci.engr.control
From: fengxi@prancer.eche.ualberta.ca (Fengxi Zhou)
Subject: Asym. stability of differential inequality
Organization: University Of Alberta, Edmonton Canada
X-Newsreader: Tin 1.1 PL3
Date: Wed, 7 Oct 1992 21:01:06 GMT

Hi netters.  I have a "simple" question about the asym. stability of a  
differential inequality.  Suppose a differential EQUATION
                 y_dotdot+a*y_dot+b*y=0     (y_dot=dy/dt, etc)
is asym. stable, i.e. y(t)->0 as t->infinity.  Now is the solution of
                 y(y_dotdot+a*y_dot+b*y)<0
which is equivalent to
                 y_dotdot+a*y_dot+b*y<0      if y>0
                 y_dotdot+a*y_dot+b*y>0      if y<0
also asym. stable?  My hunch is YES and it is bounded by the solution of
the aforementioned differential EQUATION.  But how to prove it or is it all
wrong?  Any help is greatly appreciated.  Please e-mail me.  Thanx.

Fengxi Zhou
Newsgroups: sci.engr.control
From: zzwz@rrzn.uni-hannover.de (Wolfgang Zocher)
Subject: WANTED: PD Simulator
Organization: RRZN
X-Newsreader: Tin 1.1 PL4
Date: Wed, 7 Oct 1992 15:08:14 GMT

I'm looking for an simulator (written in C) to simulate control-loops
with various transfer-functions. I've to run it on an ATARI ST, so I
must have the sources.
I think tutsim would do it, but this thing won't run on my old ATARI.

Thanks in advance 

--
Wolfgang Zocher
Regionales Rechenzentrum f. Niedersachsen
Schlosswender Strasse 5
3000 Hannover
From: dsimon@atlas.nafb.trw.com
Newsgroups: sci.engr.control
Subject: Books on Nonlinear Control
Date: 8 Oct 92 21:25:27 GMT
Article-I.D.: atlas.1414.2ad436c7

Hi.  What are some good, inexpensive ( <= $50 ) books on nonlinear control?
Hopefully something like a textbook, with examples and problems.
------------
Dan Simon
Organization: Middle East Technical University - Computer Center
Date: Tuesday, 13 Oct 1992 08:34:32 TUR
From: <E66932@TRMETU.BITNET>
Newsgroups: sci.engr
Subject: Test message, do not read|

This is a test message to see if I can post to the newsgroup.
Newsgroups: sci.engr,sci.math
From: dak@tabaqui.informatik.rwth-aachen.de (David Kastrup)
Subject: Re: Sampled White Gaussian Noise
Organization: Rechnerbetrieb Informatik  /  RWTH Aachen
Date:  8 Oct 92 20:00:07 GMT

dsimon@atlas.nafb.trw.com writes:

>The variance of sampled noise increases with the sampling frequency!

>Mathematically it is not so difficult to understand, but I can't
>understand it intuitively.  Why would the variance change with the
>sampling frequency?

>Consider a gaussian white noise process with 2-sided PSD N/2.
>Then if we take samples of the noise with sampling frequency f,
>the variance of each sample is Nf/2.  Can anyone expain this intuitively?

White noise is uncorrelated, regardless with which frequency you sample.
That's the definition. The variance is N, and that's it. The problem lies
in your sampling process. If you sample in an integrating manner
(integrating over one time slot) instead of taking an instantaneous
amplitude, you get a variance depending on the sampling interval.
But then you have an implicit sinc(fT) filter in the frequency domain
colouring your noise.
Newsgroups: sci.engr
From: alongley@cape.UWaterloo.ca (Allan Longley)
Subject: Re: Definition needed: Control Engineering
Organization: University of Waterloo
Date: Fri, 16 Oct 1992 19:13:16 GMT

In article <1bhkogINN17j@gap.caltech.edu> tylerh@cco.caltech.edu (Tyler R. Holcomb) writes:
>>A discussion of this on the net would help.
>
>1.  Using computers to make machines work better.

I like it -- simple, clear, and precise, but it ignores the entire field of
analog control.

>2.  Making manufacturing more efficient without REPLACing
>    the EQUIPMENT.

I would extend this to;

2'.  Making manufacturing more efficient and safe, while also inproving
     quality without replacing the equipment.

I would also add;

3.  Making the production of some goods possible, which were previously
    impossible.

>As you can see, I do *process* control; I suspect our
>friends in aerospace and electrical engineering  will
>find these descriptions too narrow and/or inappropriate
>for their work.

Hopefully they will add   :-)

-----------------------------------------------------------------------------
Allan Longley, University of Waterloo, Department of Chemical Engineering
e-mail: alongley@cape.uwaterloo.ca
voice: (519) 885-1211			Remember, non-technical definition
home: (519) 746-1498
------------------------------------------------------------------------------

Newsgroups: sci.engr
From: jtchew@csa3.lbl.gov (Ad absurdum per aspera)
Newsgroups: sci.engr,misc.entrepreneurs,sci.misc
Subject: Technology transfer
Date: 16 Oct 1992 16:50 PST
Organization: Lawrence Berkeley Laboratory - Berkeley, CA, USA
Distribution: usa
NNTP-Posting-Host: 128.3.254.198
News-Software: VAX/VMS VNEWS 1.41    

I spent yesterday at a National Technology Initiatives meeting
and picked up a couple of addresses that might be useful to high-
tech businesses wishing to find out how the national labs can help
them.  These are both clearinghouse/facilitation places.  Each lab
or agency additionally has a technology transfer office, but going
straight to all the labs can be like drinking from a fire hose 
(though if you're feeling thirsty, I can provide addresses...)

Good luck,

--Joe
"Just another personal opinion from the People's Republic of Berkeley"

FLC
---
Federal Laboratory Consortium for Technology Transfer
Administrator's Office
P.O. Box 545
Sequim, WA 98382
206/683-1005 or 800/775-7445

NTTC
----
Mr. Lee W. Rivers
Executive Director
National Technology Transfer Center
Wheeling Jesuit College
316 Washington Avenue
Wheeling, WV 26003
304/243-2455
From: fcs$1224@altair.selu.edu
Newsgroups: sci.engr
Subject: Simulation Text with Compiler desired
Date: 13 Oct 92 01:57:51 GMT
Organization: Southeastern Louisiana University

I will be teaching a course in simulation next semester.  I have
taught this course based on Fortran, SLAM and Simscript, using a
mainframe.  The students are juniors and seniors in Computer
Science.

This time I am giving serious consideration to using GPSS/H as one
textbook, _An Introduction to Simulation_, by Thomas J. Schriber,
John Wiley and Sons, 1990, provides a GPSS/H compiler on diskette
for the PC with the text.   Does anyone know of a text which
provides the compiler with the test other than this one?  Has
anyone used this text -- how did the students like it?


Tom

higginbotham@selu.edu
Xref: sparky sci.engr:2139 sci.engr.chem:530 sci.engr.civil:488 sci.engr.mech:437 sci.engr.control:181
From: hwm@hamster.com ("Hartmut W. Malzahn")
Newsgroups: sci.engr,sci.engr.chem,sci.engr.civil,sci.engr.mech,sci.engr.control
Subject: Help required.
Date: 16 Oct 92 22:44:41 GMT
Followup-To: sci.engr.chem
Organization: Hamster
ReplyTo: hwm@hamster.com
X-Mailer: cppnews $Revision: 1.18 $

A friend of mine as the following problem that he has to tackle in
connection to his engineering studies. He has found no references to it in
literature, so I suggested to ask whether anyone in this newsgroup can
possibly help, if only by suggesting a source of online information
somewhere.

The task is to use pyrolytic/thermic methods to remove varnish or lacquer
from galvanized steel. There is actually a company who does this, but they
refuse to talk about any parts of their methods, so we hope that there is
also some information that is freely available.

Thanks a lot in advance for any help!

Best regards --- Hartmut
---
  | Hartmut Malzahn | CompuServe: 100012.1107@compuserve.com |
  | Zimmerstrasse 9 | UK:         hwm@hamster.com            |
  | W-5860 Iserlohn |                                        |
  | Germany         | FAX:        +49-2371-14491             |
Xref: sparky sci.engr:2128 sci.engr.control:170
From: sourlas@boole.seas.ucla.edu (Dennis Sourlas)
Newsgroups: sci.engr,sci.engr.control
Subject: The e-mail address of Prof. Wassim Haddad
Date: 12 Oct 92 19:48:02 GMT
Followup-To: sci.engr
Distribution: usa
Organization: SEASnet, University of California, Los Angeles

I would really appreciate it if somebody could send me the e-mail
address of Prof. Wassim Haddad, Mechanical & Aerospace Engin. Dept,
Florida Institute of Technology.

thank you,
dennis sourlas.
Newsgroups: sci.engr
From: gregd@mel1.geg.mot.com (Greg Davis)
Subject: Test message
Organization: Motorola, inc. - Scottsdale, AZ
Distribution: sci
Date: 7 Oct 92 17:04:48

This is a test message
--
Newsgroups: sci.engr
From: rizzo@cbnewsf.cb.att.com (anthony.r.rizzo)
Subject: Re: Chemically Reacting Air
Organization: AT&T
Distribution: usa
Date: Thu, 8 Oct 1992 14:09:56 GMT

In article <1992Oct8.002254.20216@math.ucla.edu> rfedkiw@redwood.math.ucla.edu (Ronald Fedkiw) writes:
>I'm trying to model the flow of high temperature air.......
>I need to calculate the heat of formation of: N2 O2 N O NO NO+ e-
>                        ^^^^^^^^^^^^^^^^^
>Anyone know what to do ??? References ????
>--
>Ron Fedkiw (rfedkiw@joshua.math.ucla.edu)
>
>A plan is made by someone who is sitting and thinking ...
>while others are doing.

Ten years ago, I took a course in combustion.  I haven't used
that material since then.  But I recall something called
the JANAF tables.  I'm not even sure that that is the correct
spelling.  But I seem to remember something about heats of
formation being in the JANAF tables.  Oh yes.  I do recall
that NASA had something to do with the JANAF tables.  

I hope this is somewhat helpful.  After so many year of not being
used, those synapses are all but gone. >:-(

Tony Rizzo

Newsgroups: sci.engr
From: trajanos@fbmtds01.tu-graz.ac.at (Zlatko Trajanoski)
Subject: Boundary Element Software wanted!
Originator: trajanos@fbmtds01
Organization: Technical University of Graz, Austria
Date: Wed, 7 Oct 92 11:25:07 GMT

We are looking for any boundary element software package (C++ class libraries,
C libraries, FORTRAN libraries or completely developed application)
for a DECstation running under ULTRIX.

Interesting responses will be summerised.

Thanks.

Zlatko Trajanoski
-- 
| Zlatko Trajanoski                  e-mail: trajanos@fbmtds01.tu-graz.ac.at |
| Institute of Biomedical Engineering   Tel: +43 316 873 7389                |
| Graz University of Technology         Fax: +43 316 465348                  |
| Inffeldgasse 18, 8010 Graz, Austria                                        |  
Xref: sparky sci.engr:2121 sci.math.num-analysis:2971