Newsgroup sci.engr.mech 26274

Directory

Subject: Re: Which engineers are more in demand? -- From: Mike
Subject: Paints impregnating metals? -- From: gckerr@fast.co.za (Grant Kerr)
Subject: Re: Publishing Scholarly Work on the Web -- opinion anyone? -- From: Overlord@chessworks.com (Eric Schiller)
Subject: Re: Publishing Scholarly Work on the Web -- opinion anyone? -- From: "Hugh Winkler"
Subject: Bulk Solids Courses -- From: Jenike & Johanson
Subject: Re: Which engineers are more in demand? -- From: "sw"
Subject: Re: FEA: Modelling Bolt Holes -- From: barnhart@imagin.net (Michael A. Barnhart)
Subject: Welcome to sci.engr! (was Re: Pentium 133 Mini-Tower...) -- From: rongraham1@aol.com (RonGraham1)
Subject: Re: Publishing Scholarly Work on the Web -- opinions? -- From: Danny Rich
Subject: Help : Control of Water Softener -- From: Harvey Wilson
Subject: looking for TETRA Society of North America -- From: Chad English
Subject: Re: Which engineers are more in demand? -- From: nrhblack@datatamers.com (N.R.H. Black)
Subject: Re: Mechanical Applications of Spirals -- From: Randy Knott
Subject: Re: Welcome to sci.engr! (was Re: Pentium 133 Mini-Tower...) -- From: jburnett@cline.com (John A. Burnett)
Subject: Re: Publishing Scholarly Work on the Web -- opinion anyone? -- From: ez050640@boris.ucdavis.edu (Theodore Swift)
Subject: Re: searching linear actuator -- From: Andrew Hazelton
Subject: CFD Developer (Cambridge, MA) -- From: "Jules A. Yasuna"
Subject: Re: Authentic Armenian Cuisine Recipes -- From: nwres203@wolfenet.com
Subject: Re: Bolted connections in composites -- From: lazy8@imt.net (Marty Albini)
Subject: Re: Publishing Scholarly Work on the Web -- opinions? -- From: Chad English
Subject: Vol.1 No.3 of CNLS has been published!!! -- From: Guodh
Subject: Vol.1, No.3 of CNLS has been published!!! -- From: Guodh
Subject: Re: Publishing Scholarly -- From: paul.suleski@pc-aug.com (Paul Suleski)
Subject: Re: WHAT YOU KNOW versus WHO -- From: paul.suleski@pc-aug.com (Paul Suleski)
Subject: NANMAC Eroding TCs and Heat Transfer Measurements -- From: hinkey@pop.seanet.com (John Hinkey)

Articles

Subject: Re: Which engineers are more in demand?
From: Mike
Date: Fri, 13 Sep 1996 11:59:59 -0700
C. Wayne Parker wrote:
(snip)
> > - TQM
> > - Decision support systems (DSS)
> > - Systems modelling, etc...
> 
>   (Yes thank you!)
> 
> Buzzwords, buzzwords, buzzwords!  Buzzwords come and buzzwords go...  From a practical
> standpoint, however, you may want to consider mechanical engineering with a touch of
> electrical - they will always be around.  The aerospace business has had it's ups and
> downs over the years.
> 
> For example, say you get a BSME and go to work in heating, ventilating, and
> air-conditioning (HVAC): design, construction, system checkout, and (snip)
Risking that I'm preaching to the choir...
I agree, BSME holds a lot of promise well into the future.  HVAC will 
always be around and so will machine design if we expect to keep making 
things to consume.  The advice to get some electrical and electronic 
ability is also well founded.  Industrial engineering jobs are being 
automated by expert software.
Don't write off civil engineering either though - somebody has to approve 
all those structure drawings and design bridges and roads.  Sewers have 
been needed for a long long time too!
But if you want a really $uccessful carreer - sell pizza.  Though most 
engineers are comfortable, few ever get rich being engineers.
Mike
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Subject: Paints impregnating metals?
From: gckerr@fast.co.za (Grant Kerr)
Date: Mon, 09 Sep 1996 18:15:39 GMT
I am looking for some information (if it exists) on how to colour
steels/metals by impregnating the pigment/paint/etc into the surface
of the metal. Ideally the impregnation should be 1-3mm deep and
preferrably not effect the metals strength characteristics. Does
technology exist to do this? If so, please let me know.
Grant Kerr
The Rainbow Nation (South Africa)
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Subject: Re: Publishing Scholarly Work on the Web -- opinion anyone?
From: Overlord@chessworks.com (Eric Schiller)
Date: Fri, 13 Sep 1996 12:09:54 -0700
I am a big fan of onl;ine scholarly publishing, but see no need for a
fee-based site. I can post my papers on my own web site, and search
engines will find them. What need is there for a central repository?
Eric Schiller
linguist@chessworks.com
http://www.chessworks.com
---ooo---
Colorless green ideas sleep furiously at the chessboard, awaiting user input
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Subject: Re: Publishing Scholarly Work on the Web -- opinion anyone?
From: "Hugh Winkler"
Date: 13 Sep 1996 19:32:24 GMT
Why can't an electronic journal be refereed?
There could be two bins of papers, those submitted and those that have been
peer reviewed. If you want the latest, possibly flawed, information, you
browse the submitted list. You can offer your review too. But a high graded
group of reviewers would have to pass the paper to the final published
stage. They might consider the unsolicited reviews as well -- this might
improve the current review process.
-------------------------------------------
Hugh Winkler
Scout Systems            hughw@scoutsys.com
Austin, Texas                  512-452-3290
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Subject: Bulk Solids Courses
From: Jenike & Johanson
Date: Fri, 13 Sep 1996 19:26:34 -0400
Jenike & Johanson, the leading engineering firm in 
bulk solids hadling technology, is offering the 
following one day courses:
"Mix it up - and keep it that way! Understanding
blending and segregation and their effects on
product quality"
http://www.jenike.com/mixitup.html
"Keep your process well-fed: How to select or 
troubleshoot volumetric and gravimetric feeders"
http://www.jenike.com/volgrav.html
"Don't just live with your problems: Retrofit
troublesome equipment to improve flow and product
quality"
http://www.jenike.com/retrofit.html
"Don't blow it, convey it pneumatically: An 
introduction to pneumatic conveying"
http://www.jenike.com/pneucon.html
"Fine powders: Reliably handling bulk solids that
can behave like fluids"
http://www.jenike.com/finepow.html
The primary objective of each course is to provide
a basic understanding of solids flow principles
as they relate to the individual topics, and how
to apply them - leading to insight into why
problems occur.  You will learn solutions to 
typical problems, plus practical do's and don'ts
you can apply to your job.  Time will be available
to discuss your your individual needs, as well as
to tour our laboratory facilities.
One-on-one courses on introduction to bulk solids
handling are also available.
For 1996-1997 schedules and more information e-mail
us at mail@jenike.com, or call or fax Jim Prescott
at Tel: (508) 392-0300  Fax: (508) 392-9980
Also, please feel free to visit our Hompage on the 
World Wide Web!
http://www.jenike.com
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Subject: Re: Which engineers are more in demand?
From: "sw"
Date: 13 Sep 1996 03:22:17 GMT
Well, i guess it all comes down to HUMAN EXISTANCE!! that is, there is no
way that man (oops, women too!! politically correct) can live without
Mechanical Engineering, face it everything that humans interface with is
mechanical...go figure...
		enough said!
Daniel S.
t0kx@unb.ca wrote in article <32374FD7.7A60@unb.ca>...
> Of mechanical, electrical, and aerospace, which engineer is more in
> demand?  And which would you do if you were interested in all 3?  (or
> all 8 for that matter) Thank-you kindly.
> 
Return to Top
Subject: Re: FEA: Modelling Bolt Holes
From: barnhart@imagin.net (Michael A. Barnhart)
Date: Fri, 13 Sep 1996 20:03:39 GMT
In article <51a8ng$iee@newsa.netnews.att.com>, rizzo@hogpb.ho.att.com (-A.RIZZO) wrote:
>In article <3236FB54.235E@slr.orl.mmc.com>,
>Kevin O'Connell   wrote:
>>-A.RIZZO wrote:
>>> 
>>> Might it not be a good idea to first ask the question, "What am
>>> I trying to learn with this analysis?"  Or did I miss that one?
>>> 
>>
>>       I always argue with myself on this issue.  Engineers have
>>an awful tendency of telling someone how to make a clock when 
>>they ask what time it is.  I agree that the original gentlemen
>>seems to be confused as to what he was trying to do.  I say
>>"seems" because as with most posts here, there was barely 
>>enough information to use as a basis of advice.  It usually
>>falls to the respondant to make some basic assumptions....
>
>I particularly enjoyed your canned response, "First you study
>math, then physics, then engineering...."
>
>I'm sorry if my initial response came across as a little glib.
>Tony Rizzo
Just my two cents here. Tony your answer was not to glib. Are you very 
correct. I perceive that in only using a hex for the hole there was no 
intention of wanting detail data for the hole. But from other posts some felt 
that was the answer.  So who knows what is really desired?
It is a growing trend that engineers expect the computers answers to be 
correct no matter what is asked.
Good response from both Kevin and Tony
M. A. Barnhart
Lockheed Martin - TAS
Michael A. Barnhart
barnhart@imagin.net
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Subject: Welcome to sci.engr! (was Re: Pentium 133 Mini-Tower...)
From: rongraham1@aol.com (RonGraham1)
Date: 13 Sep 1996 16:36:57 -0400
John Burnett wrote...
>Greetings Faustino, sci.engr.mech is not an advertising newsgroup.
>Thanks, John Burnett
We've gone around the block on this before, John.  Cough up the
charter and show me where it says what you say.  Otherwise, it's 
your opinion against mine, and mine is as good as yours.  :-)
The current charter for sci.engr *allows* for limited advertisements
and places conditions on them.  I wrote Mr. Lopez and told him he
was going a little overboard, and he said he would be a little more
careful in future.  (Not that I really believe he will.  No-one really
obeys
any Usenet "rules."  That's why making more is of little use.)
Getting back to you, John: if advertising in sci.engr.mech is so 
distasteful to you, then what would possess you to *repeat the ad
in its entirety* before saying "this is not an advertising newsgroup?"
Come to think of it, what would make you *post* your response at
all?  (At least you did e-mail it.)  I guess that, with all your practice
at being a net-cop, you would be a little better at it by now.  :-)
Here's the sci.engr welcome message.  Maybe it contains information
relevant to sci.engr.mech as well.  Please note modification (1) to 
"standard netiquette."
**********
Welcome to sci.engr!
The original and first of the sci.engr family of newsgroups,
established in 1990 and growing in popularity by a constant rate,
as judged by the formation of new groups in the family.  Among
those groups are 
o    sci.engr.{biomed, chem, civil, color, control,
     electrical.compliance, geomechanics, heat-vent-ac,
     marine.hydrodynamics, manufacturing, mech, safety,
     semiconductors, surveying, television.advanced,
     television.broadcast}
o    alt.engr.{dynamics, explosives, nuclear}
This group was created with the charter of "technical discussions
of engineering tasks."  It exists to help engineers solve those
problems that they encounter every day.  Among consistent topics
would be the following:
     o    how to use an equation, or a method
     o    reference works
     o    vendors
     o    Internet sources
     o    software programs
     o    professional societies and their activities
     o    analysis, demonstration, inspection, similarity, and
          testing
No-one anywhere in Usenet, of course, *really* obeys the charters
of the groups they post in.  But the sci.engr family, although
unmoderated, boasts a pretty high signal-to-noise ratio as long
as some simple courtesies are followed.  Those would include the
standard netiquette found anywhere, with the following
modifications:
(1)  Sales material and advertisements appear to be acceptable
     within these groups under the condition that embedded within
     it is useful, non-product-specific and FREE information. 
     (Your mileage may vary.  Some readers of these groups will
     not accept sales material of any kind and under any
     conditions.  But since I am the Editor of this document,
     what I say goes here.  :-))  Examples of such advertisements
     would include
     o    New or improved textbooks and software
     o    New or updated WWW sites
     o    Course or lecture announcements
     o    Job listings -- although be careful here.  Headhunters
          have laid waste to the misc.jobs family with haphazard
          posting habits, and insensitivity to the needs of
          *this* audience will not be welcomed.  If you are a
          headhunter, spend some time thinking about how you want
          to approach this group before you do it.  Otherwise
          don't say I didn't warn you.  
     o    Illegal money-making scams, such as MAKE.MONEY.FAST,
          are never welcome.  In this group, I (at least) respond
          instantly to the postmaster of the sender.  (If you
          followup to a scam and repeat it in its entirety, I
          respond to your postmaster as well.)
     o    Other things headhunters (and others, usually selling
          something) do that should never be done *anywhere*: 
          -    request that no e-mail replies be made to their
               postings
          -    use false addresses so no e-mail *can be sent*
(2)  There is a certain level of scholarship present in this
     group, and it is cheapened by posting messages that add no
     value.  Such messages would include any and all of the
     following remarks: 
     o    "hear, hear" or the common misspelling "here, here"
     o    "Get a life"
     o    "Well said"
     o    "Keep it out of this group" or "Take it to e-mail"
     o    "Please send me a copy" or "How can I get a copy?"
     and so on.  If all you want to do with a posting is to agree
     or disagree with it, do so via e-mail, or at least stick
     some relevant new information in there with your comment. 
     Otherwise you look like you are clueless.  (Yes, I know
     you're not.  I'm just telling you what you look like.)  
     Usenet racial memory is perhaps longer than it should be,
     but the fact is that it is long.  If you show disrespect for
     others there is a good chance that it will be remembered
     next time you ask for help, or mention your own service.
(3)  There are certain individuals (one individual, anyway) who
     will crosspost the most outrageous nonsense regularly to
     this group, just to get attention.  The lesson to be learned
     is that crossposting is not welcomed unless it is
     appropriate.  Even if you are just following up to an
     article -- even if you are flaming someone for posting
     something inappropriate -- if you follow up to the same
     groups without adding value consistent with the charter of a
     group, you are behaving as badly as a common spammer.
     One common mistake in following up to a crossposted thread
     is the assumption that your followup goes only to the group
     you care about.  May I point out to you that your comments
     regarding "this group" will make you look like a complete
     idiot if they are posted to ten groups?  (Yes, I know you're
     not.  I'm just telling you how such actions make you look.)
(4)  Here are the threads that surface every now and again and
     start arguments.  If you want to start an argument in these
     groups, most of the hot buttons have already been pushed. 
     That doesn't mean everything relevant has been said.  Say it
     again, by all means.  For some of these subjects, I keep
     summaries of previous debates.  You can always check with me
     before you start a new one, so you can see if your two cents
     are fresh or simply recycled.
     o    Engineers need more (or less) "practical" education
     o    Engineers all should (or none should) be licensed
     o    Engineers need more (or less) liberal arts
     o    Faculty need more (or less) "real world" experience
     o    The title "engineer" is abused (or used rightly) by
          others, such as "software engineers"
     o    Total quality management will save (or destroy) the
          engineering world
     o    Engineers are responsible for all (or no) failures
     o    Engineers need to have more (or less) ethics
     o    This newsgroup needs to be moderated (or left as is)
     If I missed any, please let me know.  :-)
(5)  Students regularly come to this group looking for help with
     homework: either the solution to a textbook problem, or
     suggestions for a thesis topic, or ideas on how to do a
     project.  If you are thinking about this approach, please
     make it easy on yourself: give as much information as
     possible about *what you have already done* on the problem. 
     And at least *offer* to summarize for the entire group's
     benefit what you learn from your inquiry.  Some people in
     this group charge a lot of money to help businesses solve
     the kinds of problems you are asking them to solve for free. 
     What incentive do you offer them to solve your problem?
(6)  Whatever you post, please make your subject heading as
     indicative of the subject as possible.  If your subject line
     is "HELP ME!" or "INFORMATION REQUESTED," the chance of your
     getting help from someone knowledgable goes down.  They just
     won't take the time to read your article just to see what
     you're talking about.  (But it happens all the time anyway.) 
     Likewise, if you change the subject of a thread, change the
     subject line accordingly so the people who are interested in
     the subject can follow it.
The sci.engr.* family of groups has five FAQs for which I am the
Editor (and if there are any other FAQs for which I am not the
Editor, I would like to add copies of them to my files and would
thus appreciate any pointers).  Those FAQs are available to
anyone who asks, in lieu of their not being housed at a
particular WWW or FTP site at this time.
(1)  On the PE and EIT Exams
(2)  On What Engineers Are and Do
(3)  On Failures
(4)  On Innovation and Product Development
(5)  On Engineers and Quality
Their is a sixth near first draft Completion: On Engineers and
Education.  I am always looking for other FAQ subjects and would
welcome suggestions.
Dr. Ron Graham
Project Engineer for Robotics, GreyPilgrim LLC, Philadelphia
"The little men with the slide rules and computers are going to
inherit the earth." -- Jimmy Stewart, in "Flight of the Phoenix"
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Subject: Re: Publishing Scholarly Work on the Web -- opinions?
From: Danny Rich
Date: Fri, 13 Sep 1996 17:07:43 -0700
N. Gat wrote:
> 
> Subject:  Publishing Scholarly Work on the Web -- opinions?
> 
> I'd appreciate any pro and con arguments on the subject of this letter.
> Since this matter touches upon all the sci.*, many comp.* and other
> newsgroups, I'll try to cross post this message.
> 
> The TechExpo Web site would like to open up a ScienceExpo section
> dedicated to the publication of scholarly works in HTML format (TechExpo
> already provides an array of services to the science & technology
> community; see http://www.techexpo.com).
> 
>                         THE RATIONALE IS AS FOLLOWS:
> 
> 1) The peer-review process of scientific journals may take from many
> months to over a year.
True but there are reasons for this.
> 
> 2) The review process is often arbitrary in nature.
More true still ... This is mostly a barrier to young scientists.
> 
> 3) The access to the work is limited because many libraries do not carry
> the journal, or it is too expensive for an individual subscription
>Not a problem for serious technologist who will have access to NTIS, ISI 
and other search firms.  I used to get notices across my desk each week 
with lists of articles on topics of my interest only. I initialled the 
ones that I wanted to read and by the end of the week I had them in my 
hands.  Computers and telecommunications were not invented by the 
INTERNET.
> 4) A journal in any field carries work that is much broader than that of
> individual researcher or engineer so important papers are often obscured
> because they do not quite belong in any particular journal.
>So why bother reading the whole journal?  
> 5)  Because of the multi-disciplinary nature of technology and science,
> some topic have applicability in more than one field, and no journal or
> conference may cover such broad fields.
>No, but series technologists can and do.
> 6) Papers posted at ScienceExpo will be searchable not only by key
> words, but the author will be able to select any number of applicability
> categories from a list of over 400 existing categories (see the TechExpo
> classification schedule).
> 
> 7)  papers will be searchable via all the Web search engines.
> 
> 8)  The author can still submit the posted paper to refereed journals.
But will it be accepted?  Most archival journals have strict rules about 
prior publication of papers.
> 
>                         PUBLICATIONS AT ScienceExpo WILL:
> 
> a)  Appear within 48 hours of submittal
> 
> b)  The paper will be immediately available to the entire community
> 
> c) The paper will indexed and could be found by all researchers via the
> Internet search engines, or internal ScienceExpo search tools (using any
> keyword, author name, institution name, etc.)
> 
> d) The author can select any number of fields of science and technology
> form a list of over 400 (see TechExpo Classification Schedule) to reach
> the target audience much broader than any one journal can
> 
> e) Authors can hot-link all references directly from their paper
> 
> f)  On-line discussion of papers can be conducted within the appropriate
> UseNet groups
> 
> g) Papers may be copies and printed or forwarded to others
> electronically or by other means.
> 
>                         SOME PROPOSED GROUND RULES:
> 
> (A) Work submitted must be of original nature and of value to science or
> technology
> 
> (B) The paper must carry the full names of the authors and institution,
> including address, phone number, fax, and e-mail.
> 
> (C) Ethical conduct:  Papers posted at ScienceExpo should be treated as
> any other publication.  They represent the scientific work of colleagues
> and should be treated as such.  If information is quoted, the proper
> reference should be given credit.
> 
> (D) When copying, forwarding, etc., the entire paper, including the
> authors information, institution, as well as the ScienceExpo source
> should be included.
> 
> Obviously ScienceExpo will not referee papers; the authors' names and
> the institution they represent are put on the line -- so posting papers
> ON-LINE should be given as much or more care and thought as submitting a
> paper to prestigious journals
All of the above are both necessary and sufficient for this to be a 
meaningful publication forum.
> 
>                         A FEW TECHNICALITIES:
> 
> (i) The entire paper must be submitted in HTML, and graphs, figures and
> charts in gif or jpg format  (this is a deviation from common formats
> requiring PostScript or TEX, to allow viewing papers using the
> newsreader built into popular browsers, and to allow indexing such
> papers by all the Web search engines)
> 
> (ii) Maximum size for text files and graphics will have to be observed
> 
> (iii) Equation should be edited using the HTML specifications, or
> scanned and pasted as graphics files
> 
> (iv) It is the author's responsibility to secure authorization of the
> institution and/or the research funding authority to submit the
> publication.
> 
> Finally here is the most sticky point.  If the service if totally free
> of charge, I'm concerned there will be a deluge of frivolous
> publishing.  I consider a fee structure to act as a "potential
> Barrier."   A low, yet significant fee (hopefully) will discourage the
> unwarranted publications, but will not be too high to discourage worthy
> publications.  Perhaps academic institutions will receive a discount,
> but corporations will pay somewhat higher fee also to defray the costs
> of the service.
> 
> So one question is whether a fee imposed on publication will completely
> stifle interest?  Is for example, a one-time publication fee of $400 for
> a corporation, and $100 for academia too high a fee?
> Why do you assume that you must penalize industrial contributors?  
Will their organizations pay the $400?  If so, then you will have very 
few contributions.  My organization supports publicaition only in 
journals without page charges.  Second, you are far more likely to get 
frivolous papers from individuals with no affiliation.  What do you 
charge them?  What do you charge a student?  How do you collect these 
fees?
> One more comment as to why should TechExpo do this.  In my opinion
> technical societies (and I belong to a few) could do the job but the
> problem of cross discipline relevance will not be solved.  So being
> unaffiliated with any technical society or technical magazine, TechExpo
> is a neutral ground most appropriate for this job.  What's more,
> TechExpo is already providing technology and science information for
> almost two years.
> 
> Is this idea totally freakish?
> 
> Well, the floor is now open for debate.
> 
> Private communications are welcomed but posted comments/debate is
> preferred.
> 
> Nahum Gat, Ph.D.
> President
> Opto-Knowledge Systems, Inc. (OKSI)
> Web:  http://www.techexpo.com/WWW/opto-knowledge
> 
> E-mail: oksi@cerfnet.com
>                 or
>         nahum@techexpo.com
Danny Rich
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Subject: Help : Control of Water Softener
From: Harvey Wilson
Date: 13 Sep 1996 20:24:26 GMT
Please can anyone who has had success in automatic control of the 
regeneration of water softening beds for water tube boilers give me 
advice on what instrument I can use to detect the breakthrough of silica. 
 My aim is to achieve automatic detection of bed exhaustion and automatic 
regeneration.
Thanks for all help
Harvey Wilson
hwilson@ilink.nis.za
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Subject: looking for TETRA Society of North America
From: Chad English
Date: Fri, 13 Sep 1996 15:03:30 -0400
I'm looking for a way to contact the TETRA Society of North America.  I
believe that is their name.  They are a group of engineers, technicians,
etc (mostly retired, I understand), who volunteer their skills and time
to build individual devices to meet the specific needs of handicapped
individuals.  I've seen them on a couple of TV shows (news magazine type
shows) where I got their name.  I'm pretty sure there is a chapter in
Vancouver, BC.  I want to either join or start something similar here in
Ottawa, but I can't find out any information about them.  Any help would
be appreciated.
--
    ("`-''-/").___..--''"`-._         
     `6_ 6  )   `-.  (     ).`-.__.`)  Chad English
     (_Y_.)'  ._   )  `._ `. ``-..-'  cenglish@mae.carleton.ca
   _..`--'_..-_/  /--'_.' ,'       http://www.mae.carleton.ca/~cenglish
  (il).-''  (li).'  ((!.-'
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Subject: Re: Which engineers are more in demand?
From: nrhblack@datatamers.com (N.R.H. Black)
Date: 13 Sep 1996 21:59:55 GMT
Johan is quite right, take a look at what's HOT. . . .
and be sure to avoid it.  Go for something likely to have long term
value.  Perhaps combining Engineering with a growth area such as
Law or Medicine.
Henry Black P.E.
Johan Louw (louj0120@sasol.com) wrote:
: > Of mechanical, electrical, and aerospace, which engineer is more in
: > demand?  And which would you do if you were interested in all 3?  (or
: You should have a look at Industrial Engineering.
: [snip]                          ~~~~~~~~~~~~~~~~~~~~~~
: Typical aspects like the following is HOT:
: - supply chain management, design and integration
: - Business process engineering & re-engineering 
: - TQM
: - Decision support systems (DSS)
: - Systems modelling, etc...
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Subject: Re: Mechanical Applications of Spirals
From: Randy Knott
Date: Fri, 13 Sep 1996 00:37:05 -0700
Dan Bollinger wrote:
> 
> sw wrote:
> >
> > ummm, how about a spiral staircase?!
> >
> 
> Sorry sw, spiral staircases are actually in the form of a helix!
> Definition of a spiral is a curved form with ever changing radius,
> usually planar.
> 
> Tie each end of a string onto two sticks.  Plunk one stick in the ground.
>  Keeping the string taut, mark the ground with the other stick. As the
> string winds onto the first stick, you'll be marking the locii of a
> spiral!
> 
> Dan Bollinger
> Industrial Designer
Here's one, the spiral cone log splitter. Some are made to bolt onto
your rear truck axle. 
Clint
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Subject: Re: Welcome to sci.engr! (was Re: Pentium 133 Mini-Tower...)
From: jburnett@cline.com (John A. Burnett)
Date: 13 Sep 1996 23:53:40 GMT
In article <51b2o3$eku@newsbf02.news.aol.com>,
RonGraham1  wrote:
snip..........................
>Getting back to you, John: if advertising in sci.engr.mech is so 
>distasteful to you, 
snip........................
>Come to think of it, what would make you *post* your response at
>all?
Ron, to me it's simply a matter of forum preservation. There are
thousands of other outlets for advertising, whether it be job posts,
product ads, service or whatever.
Sci.engr.mech is a unique forum and I would like to see it stay that way.
John Burnett
Fri Sep 13 19:01:35 CDT 1996
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Subject: Re: Publishing Scholarly Work on the Web -- opinion anyone?
From: ez050640@boris.ucdavis.edu (Theodore Swift)
Date: 14 Sep 1996 01:06:36 GMT
In article <3236561B.37C5@cerfnet.com>, oksi@cerfnet.com wrote:
>                         THE RATIONALE IS AS FOLLOWS:
>
>
> 1) The peer-review process of scientific journals may take from many
> months to over a year.
>
> 2) The review process is often arbitrary in nature.
I tend to agree with (1) and disagree with (2), and this forms the basis
for my support of the idea of "publishing" electronically, with a few
reservations or amendments to the ideas already presented.
  It seems to me the advantage of the electronic medium is speed, and that's
about the only important advantage.  But speed can also be a disadvantage:
We want to produce a body of literature that the community of researchers
can rely on for accuracy, logic, etc., and "speed" isn't the best means to
that end.
  That being said, I think an electronic "publication" medium provides a
route for rapid feedback on a *draft* of a paper.  It occurs to me that
this might blur the definition of "authorship", or at least swell the space
devoted to acknowledgements traditionally found in a paper (e.g. "The authors
wish to thank the 257 reviewers who commented on the text.  A full list
can be found at /foo.edu/bar/brickbats" ).  Then, after a preliminary round
of feedback, the revised (and, one hopes, improved) paper should go on to
the "traditional" journal revision process, which might be made to respond
faster with the knowledge that the submission has already been run through
a mill.
-Ted Swift
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Subject: Re: searching linear actuator
From: Andrew Hazelton
Date: Fri, 13 Sep 1996 18:20:21 -0700
w.milz@server.fkp.uni-linz.ac.at wrote:
> 
> Hello !
> I am looking for a fast linear actuator to move a mirror parallel to the
> optical axes in a Michelson Interferometer.
> The desired specifications are:
Dover Instruments in Westboro, MA makes air bearing slides with actuators.  
Should be able to meet your spec.
Dover
508 366-1456
-- 
Andrew Hazelton
ajhazel@slip.net
Nikon Research Corporation of America
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Subject: CFD Developer (Cambridge, MA)
From: "Jules A. Yasuna"
Date: Fri, 13 Sep 1996 16:15:12 -0400
Microcosm Technologies, Inc. is developing advanced software
solutions for design, manufacturing analysis and system integration
of MEMS (MicroElectroMechanical Systems).
We are seeking and individual to join our software development team
as the resident Computational Fluid Dynamics expert. Candidates should
have experience in at least one of the following areas:
-- Solid-Fluid Interaction
-- Two-phase Flow
-- Chemically reacting Flow
-- Fluid Physics
Candidates must have all of the following qualifications:
-- Highly proficient in C and/or C++ on Unix
-- BS in Engineering or related area (Masters/PhD preferred)
-- The ability to work in a team environment. This requires:
   -- Excellent communication skills
   -- Self-motivation
   -- Responsible programming techniques
Individuals with Engineering (Mechanical/Electrical), Physics
and Mathematics backgrounds coupled with software development
experience are ideally suited for the technically challenging 
environment at Microcosm.
Please send resumes to:
	search@memcad.com
Microcosm Technologies is an Equal Opportunity Employer.
ABSOLUTLEY NO SEARCH FIRMS PLEASE
Employee Search Committe
Microcosm Technologies, Inc.
101 Rogers St.
Suite 213
Cambridge, MA 02142
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Subject: Re: Authentic Armenian Cuisine Recipes
From: nwres203@wolfenet.com
Date: Sat, 14 Sep 1996 05:44:36 GMT
Steve Cummings  wrote:
>> Learn how to make "Kufta"
>Does preparation of "Kufta" cause an unusual loading on HVAC systems?
Since this was posted in sci.fractals, I assume that the recipe is
chaotic - you just throw in whatever you see until the bowl is full.
Everybody's results will be different depending on numbers and
percentages of ingridients as well as the size of bowl. However this
recipe has been successfully tested by my sister a few years ago -
when she was learning to cook.
 Alex
nwres203@wolfenet.com
************************************************
System report? RAM is ramming, electrons zinging.
All  systems go - or already gone.
************************************************
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Subject: Re: Bolted connections in composites
From: lazy8@imt.net (Marty Albini)
Date: Sat, 14 Sep 96 05:43:29 GMT
The original article never made it to my server, so forgive me if this was
covered already, but an important question is what kind of matrix is
involved: thermoset or thermoplastic? The question is important if the 
assembly is to be subject to long service without retightening the bolts.
If the plastic component flows under the bolt heads, relieving the bearing
stress, it will also relax the bolt preload and the assembly may fail long
after initial assembly. Thermosets, in general, are less subject to creep
(stress relaxation) than thermoplastics.
If you want to test this phenomenon, be sure you do so at the extremes
of the expected temperature range to account for the differences in thermal
expansion rates of the various materials and property degradation 
(especially in thermoplastics at high temperature).
In a test I ran with 30% glass reinforced polycarbonate, a 100 hour test
told me all I needed to know.
Marty
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Subject: Re: Publishing Scholarly Work on the Web -- opinions?
From: Chad English
Date: Fri, 13 Sep 1996 14:49:07 -0400
Kirk Kerekes wrote:
> If you have the title and the author (as in a normal reference) a few
> moments with HotBot or one of the other web searchers will find the paper.
> Why be overly concerned with URLs?
> 
> --
> Kirk Kerekes
> ------------------------
> ___  ____ ____ ____ ____ ____ ___ _ ____ _  _
> |__] |___ |__/ |___ |___ |     |  | |  | |\ |
> |    |___ |  \ |    |___ |___  |  | |__| | \|
>                    is Not an Available Option
> -----------------------------------------------------------
The next question is that if the title and author name are sufficient to
find the paper, why bother including a url or date of visitation in the
reference?  My main worry is the ability to find the paper.  Sufficient
records and duplicate archives would have to be kept.  That doesn't
appear to be a big problem nowadays with all the mirrored archives
around.  Looking in the future though, suppose 50 years down the road
someone wants to find one of these papers.  I don't imagine the same
sites will be around then, and there may be a completely different way
of storing and accessing these papers.  How can one reference a paper
today in some sort of "permanent" way so that a person could find that
paper in 50 years?  I think a lot of consideration has to made for the
future of storing these papers so that they will be accessible for quite
some time in the future.
This isn't that huge of an issue to me.  Just something I think needs to
be considered.
--
    ("`-''-/").___..--''"`-._         
     `6_ 6  )   `-.  (     ).`-.__.`)  Chad English
     (_Y_.)'  ._   )  `._ `. ``-..-'  cenglish@mae.carleton.ca
   _..`--'_..-_/  /--'_.' ,'       http://www.mae.carleton.ca/~cenglish
  (il).-''  (li).'  ((!.-'
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Subject: Vol.1 No.3 of CNLS has been published!!!
From: Guodh
Date: Sat, 14 Sep 1996 21:01:30 +0900
Dear to all:
The academic journal "Communications in Nonlinear Science & Numerical
Simulation " Vol.1 No.3 has been published. 
URL: http://mccux0.mech.pku.edu.cn/~nlscomm/
Welcome to our journal. Thanks!!!
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Subject: Vol.1, No.3 of CNLS has been published!!!
From: Guodh
Date: Sat, 14 Sep 1996 21:08:00 +0900
Dear to all:
The academic journal "Communications in Nonlinear Science & Numerical
Simulation " Vol.1 No.3 has been published. 
URL: http://mccux0.mech.pku.edu.cn/~nlscomm/
Welcome to our journal. Thanks!!!
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Subject: Re: Publishing Scholarly
From: paul.suleski@pc-aug.com (Paul Suleski)
Date: Sat, 14 Sep 1996 12:40:00 GMT
>Looking in the future though, suppose 50 years down the road
>someone wants to find one of these papers.  I don't imagine the same
>sites will be around then, and there may be a completely different way
>of storing and accessing these papers.  How can one reference a paper
>today in some sort of "permanent" way so that a person could find that
>paper in 50 years?  I think a lot of consideration has to made for the
>future of storing these papers so that they will be accessible for quite
>some time in the future.
>
>This isn't that huge of an issue to me.  Just something I think needs to
>be considered.
    Indeed.  OTOH, in 50 years, might not a paper be obsoleted (or 
even proven absurd) by more modern research?
    That's one side of the polyhedron (the two-sided coin analogy 
just doesn't fit, given the gamut of opinions in this thread).
    Today we have CDROM, the most permanent medium I can imagine.  
A library of such containing all the world's knowledge would not 
fill a room at the branch library down the street.  Denser storage 
will surely be found, eventually.  But then, so would the speed of 
data transfer.  If there were a public, international body to 
warehouse these permanent archives, perhaps several, duplicate 
archives for security's sake, then what we'd need is a standard, 
that, given the way such things evolve as needed, would migrate the 
archives from one technological generation to the next.
    It's inevitable, it seems to me.
___
* UniQWK v4.2 * The Windows Mail Reader
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Subject: Re: WHAT YOU KNOW versus WHO
From: paul.suleski@pc-aug.com (Paul Suleski)
Date: Sat, 14 Sep 1996 15:04:00 GMT
>From: klwasson@aol.com (Klwasson)
>Subject: WHAT YOU KNOW versus WHO YOU KNOW
>
>I was told at an early age that it's not what you know, it's who you
>know, that will determine your success in life.  So far I have 
>found that is true to some extent.  Networking and smoozing are 
>clearly important.
>
>I would be very curious to hear from you all on this: Based on your
>experiences and observations in your careers, do more engineers get hired
>(1) based largely on their background, capabilities and experience or (2)
>based largely on who they knew at the place that hired them.  Please
>indicate what industry or field you are in.
>
    It took me some time to respond, because it involved some 
soul-searching about my somewhat checkered career.  Over the recent 
fifteen years, I was hired by very large companies which had major 
systems projects that were in trouble or needed a sudden influx of 
particular expertise which I had in unique combination.  These 
include Intel, McDonnell Douglas and Boeing.  Prior to that, I 
worked on the vendor side of the material handling hardware systems 
industry, working my way up from engineering special transfer 
devices, to systems engineering, to sales engineering, to 
consulting before the company I thought would dominate the industry 
went belly up for some non-technical (read bean counter screw up) 
reason.  Because I thought it was the peak of my career, I crossed 
the line to become an in-house consultant for major corporations.  
    Until then, I counted solely on technical expertise for my 
advancement.  I'm at my best with "mission impossible" situations 
and so far have always come through.   But when layoffs are in the 
works, I wind up on the list, anyway.  Why?  Lot's of reasons, some 
favorable in my mind; others, a blow to my ego.  On the whole, 
though, I'd say my lack of skill at schmoozing has hurt me.
    Schmoozing can mean a lot of things.  I could schmooz HR by 
getting a master's in my field; but, I haven't the time, despite 
the writings I've done that are that level.  In fact, this 
December, I'll be presenting a paper to the 1st International 
Conference on Industrial Engineering Applications and Practice at 
the University of Houston.  I'm going as Mr., not Dr. or anything 
else like that.  The conference emphasizes traditional; but, when I 
submitted my abstract for approval, I noted my subject was about 
two NON-traditional approaches to analyzing inventory and using a 
mathematical model spreadsheet for designing warehouse 
storage/retrieval systems.  I asked my company about sponsoring my 
trip (to cover my expenses).  The answer was no, for "the company 
wouldn't get anything out of it for the money."  In fact, my new 
boss suggested a new hire should go instead, because that's his 
responsibility (planning our expansion).  Why am I not on that team?
I wonder, too.  I guess I'll just have to wait until the project is 
in serious trouble, then come in and fix it.
    While working for Boeing in Seattle, I was guest speaker at an 
APICS dinner on automated factory subjects.  I'd probably get APICS 
certification, locally, myself, if I'd take the time.
    But I got one flaw:  I hate paperwork!  That's why I so heavily 
rely on computers to get the job done - any kind, any OS.  My 
office is a mess, for the many working, but undocumented projects I 
initiated.  My filing method is CHAOS; but, I can find what I want, 
unless some neatnik has visited me.  My operating style is "tackle 
the problem head on, solve it, and move on to the next one."  After 
a while, you have to really look hard for the next one.
    I do get top dollar for my time; but, given the periods of 
unemployment, I probably average out as mediocre in income.  
Getting the top of my salary range likely also makes me a 
downsizing target, for human nature usually asks "what have you 
done for me lately?"  OTOH, being at the right place at the wrong 
time is no picnic, either.  Boeing desparately needed a warehouse 
designer when 777 was starting up and I was loaned to BAC by BCS, 
the division that hired me, to work on the composites factory; but 
when BCS did its layoffs, guess who doesn't have a MSCS?  Last time 
I saw a layout, my uncompleted work was badly screwed up by the 
thoughtless addition of a structure that could have been better located.
    Am I bitter?  Sometimes I do get depressed over why I'm not a 
millionare; but then I take a look at my "Most Satifying 
Accomplishments" document and it makes me feel much better. I may 
not get the recogition I deserve for my "significant contributions 
to the state of the art," but I can point to that and say proudly, 
"I did it."
    While many of my wins are individual efforts, as I get older, I 
increasingly appreciate the value of a teamwork environment for 
major projects.  Perhaps my "luck" will now change.
___
* UniQWK v4.2 * The Windows Mail Reader
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Subject: NANMAC Eroding TCs and Heat Transfer Measurements
From: hinkey@pop.seanet.com (John Hinkey)
Date: Sat, 14 Sep 1996 07:25:37 MST
Has anyone used NANMAC "eroding" thermocouples to measure the heat transfer 
rate to a surface by recording the wall temperature.  I have a stainless steel 
tube in which I am performing some combustion experiments.  I want to know the 
heat transfer rate vs. time.  I've bought the eroding thermocouples, used 
them, recorded interior wall surface temperatures, etc.  I now am having 
trouble agreeing with NANMAC on how to interpret the temperature results to ge 
the heat transfer rate out of the data.  Has anyone else done this before?
Thanks,
John Hinkey
Seattle, WA
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