HDTenEightyP/NetNews huggingface dataset:
From: bj368@cleveland.Freenet.Edu (Mike E. Romano)
Newsgroups: alt.sci.physics.acoustics
Subject: Sound Cancelling
Date: 12 Dec 1992 02:18:39 GMT
Organization: Case Western Reserve University, Cleveland, Ohio (USA)
NNTP-Posting-Host: hela.ins.cwru.edu


Anyone have information on mechanism, apparatus for sale, etc.
to match sounds or noise with reverse phase (or whatever it is
called), so that sound is cancelled?
Any books, articles on this also welcomed.

Mike Romano.


-- 
Capt. Kirk: let's head for that planet, third from the sun, it
            looks promising.... |-)
Newsgroups: alt.sci.physics.acoustics
From: acampane@magnus.acs.ohio-state.edu (Angelo Campanella)
Subject: Re: level sound meter
Organization: The Ohio State University
Distribution: usa,canada
Date: Thu, 17 Dec 1992 06:46:40 GMT




I think you are OK with the RadioShack unit 20 Hz to 20 K,

But Shy on the low SPL end.  Well, its lowest scale is 60 dB, and that figure
puts the needle at 2/3 scale.  It has an AC out jack (1/8" plug), so that you
can feed its output to ANY indicating device, and I'm sure its noise level is
suitably low to make your 40 dB OK.

The next level up is QUEST.

I see from their 1989 price sheet they have a model 208L for $165.00

They are in Oconomowoc, WI @ 414-567-9157  // FAX = 414-567-4047
Newsgroups: alt.sci.physics.acoustics
From: jdavis@wizard.etsu.edu (Jason Davis)
Subject: Re: Speaker Cabinet Design Program
Keywords: Speaker Design, Perfect Box
Reply-To: jdavis@wizard.etsu.edu (Jason Lee Davis)
Organization: East Texas State University, Commerce, TX
Date: Tue, 15 Dec 1992 02:55:14 GMT

In article <1fgqreINNkmo@matt.ksu.ksu.edu> mortense@matt.ksu.ksu.edu (Alvin Nor Mortensen) writes:
>Hi all:
>
>I interested in designing some speaker cabinets. I would be interested
>in any good references anyone can think of. I have also heard about a
>program for speaker design called Perfect Box. Does any one know of an 
>ftp site for this. Thanks in advance for any information.
>
>nam
>

Perfect Box is available via anonymous FTP from  csd4.csd.uwm.edu
It is located in the dir:  pub/high-audio/Software
...along with a few other audio related programs.
It is the file perf.zip

Enjoy...				73's		-Jason Lee Davis :-)


   /|  Jason Lee Davis                        <jdavis@wizard.etsu.edu>  |\
||/_|  Shiloh Productions sound co. ____      <s2903d@etsuv2.etsu.edu>  |_\||
||\ |  Rt. 1  Box 175              (_ |_)     <s2903d@etsuvax2.bitnet>  | /||
   \|  Klondike, Texas 75448 ________)| _____ (903) 886-2903            |/
Newsgroups: alt.sci.physics.acoustics
From: carlin@gandalf.nosc.mil (Mike Carlin)
Subject: acoustic imaging
Originator: carlin@gandalf.nosc.mil
Organization: Naval Ocean Systems Center, San Diego
Date: Wed, 16 Dec 1992 23:47:18 GMT


Hello,

Does anyone know of any researchers who have been using the Astronomical
Image Processing System (AIPS) software package for acoustic imaging
(e.g. medical imaging, petroleum exploration)?  If yes, I would 
appreciate it if you could provide me with information as to how to
contact them.  I have the same request concerning users of the MIDAS and
IRAF image processing packages.

For those of you using AIPS, MIDAS or IRAF for non-radio astronomical
purposes, did you find it easy to use and easy to modify for your 
purposes?

Can anyone doing acoustic imaging recommend any other software packages?

Thank you for your time.

Michael Carlin
carlin@nosc.mil
(619) 553-1795


Xref: sparky alt.sci.physics.acoustics:326 sci.engr.mech:669
From: jing@resmel.bhp.com.au (Jian Feng)
Newsgroups: alt.sci.physics.acoustics,sci.engr.mech
Subject: Sound propagation in halfspace with velocity gradient
Date: 15 Dec 1992 00:18:33 GMT
Organization: BHP Research - Melbourne Laboratories
NNTP-Posting-Host: zaphod.resmel.bhp.com.au


I have the following problem:

I have an isotropic compressive halfspace (air) bordered on a rigid boundary
(idealized). There is a velocity gradient in the air from the boundary into 
the infinity of the halfspace. 

I would like to know the propagation modes in this gradient-velocity halfspace.
Before I start numerical calculations, I would like to know if anyone else
before has solved the problem. I also welcome any suggestions as how to solve
the problem.


              z

              ^   air halfspace with velocity gradient c(z)
              |
              |
------------------- Rigid incompressible boundary ---------------------> x


Please use email to communicate, because our LAN news server is down 
since 2 weeks and we don't know when it will be up again.

Thanks.

Jim
jing@resmel.bhp.com.au
From: anton@gomez.physics.lsa.umich.edu (Anton Zavriyev)
Newsgroups: alt.sci.physics.acoustics
Subject: level sound meter
Date: 16 Dec 1992 22:41:22 GMT
Organization: University of Michigan, Ann Arbor
Distribution: usa,canada
NNTP-Posting-Host: gomez.physics.lsa.umich.edu


I am sorry, my previous posting was missing some important info.  Here is
what it should have said:

I am looking for an inexpensive portable sound level meter.
Bandwidth:  20Hz -- 16KHz
Dynamic response:  40dB -- 120dB
Any leads are appreciated.  Please,  reply via e-mail to
zavriyev@nrcphy.phy.nrc.ca
Thank you.
Anton Zavriyev
From: garyg@Warren.MENTORG.COM (Gary Gendel)
Newsgroups: alt.sci.physics.acoustics
Subject: Re: sound level meter
Date: 16 Dec 1992 18:12:44 GMT
Organization: Mentor Graphics, IC Group
Distribution: world
Reply-To: garyg@Warren.MENTORG.COM
NNTP-Posting-Host: garyg.warren.mentorg.com

In article 1gnnmcINNsft@terminator.rs.itd.umich.edu, anton@gomez.physics.lsa.umich.edu (Anton Zavriyev) writes:
>
>
>Hello everyone!
>
>I am looking for an inexpensive (probably used) sound level meter.  All leads
>are appreciated.  Please, reply via e-mail.
>
>Thank you.
>Anton Zavriyev.
>

You need to be more specific about your requirements.  But Radio Shaft (Shack) used
to have a cheap (~$40.00) handheld sound level meter.  I have an ancient version of
this that I used to use for setting up room acoustics.  It is relatively flat in the
midrange, but gets pretty bad at the audio extremes.  I used a mechanical piston
frequency generator to calibrate the unit for reasonable results.

Good Luck.
From: anton@gomez.physics.lsa.umich.edu (Anton Zavriyev)
Newsgroups: alt.sci.physics.acoustics
Subject: sound level meter
Date: 16 Dec 1992 17:06:20 GMT
Organization: University of Michigan, Ann Arbor
Distribution: usa,canada
NNTP-Posting-Host: gomez.physics.lsa.umich.edu



Hello everyone!

I am looking for an inexpensive (probably used) sound level meter.  All leads
are appreciated.  Please, reply via e-mail.

Thank you.
Anton Zavriyev.
From: mb7s@fermi.clas.Virginia.EDU (Mikhail  Boukhny)
Newsgroups: alt.sci.physics.acoustics
Subject: Re: acoustic imaging
Date: 20 Dec 92 19:46:47 GMT
Organization: University of Virginia

carlin@gandalf.nosc.mil  writes:
> 
> Hello,
> 
> Does anyone know of any researchers who have been using the Astronomical
> Image Processing System (AIPS) software package for acoustic imaging
> (e.g. medical imaging, petroleum exploration)?  If yes, I would 
> appreciate it if you could provide me with information as to how to
> contact them.  I have the same request concerning users of the MIDAS and
> IRAF image processing packages.
> 
> For those of you using AIPS, MIDAS or IRAF for non-radio astronomical
> purposes, did you find it easy to use and easy to modify for your 
> purposes?
> 
> Can anyone doing acoustic imaging recommend any other software packages?
> 
> Thank you for your time.
> 
> Michael Carlin
> carlin@nosc.mil
> (619) 553-1795
> 
You might wish to contact Leica. They have software supporting their acoustic
microscope. Image processing system for their Scanning Laser Acoustic Micro-
scope is much more advanced and it shouldn't be too difficult to adopt it to
any other scanning system.
Mike.
P.S. As always, Leica is a kind of expensive brand.
> 
Newsgroups: alt.visa.us
From: dludi@uxh.cso.uiuc.edu (Darmawan Ludirdja)
Subject: Re: 10 year cap on green cards?
Organization: University of Illinois at Urbana
Distribution: usa
Date: Wed, 16 Dec 1992 17:20:40 GMT

vijay@ncsa.uiuc.edu (Vijay Rangarajan) writes:

>In article <1992Dec16.145522.11402@engage.pko.dec.com> wiryaman@riscee.pko.dec.com (Santa Wiryaman) writes:
>>Well to answer my own question, a reliable source told me that the green cards
>>that need to be replaced with a new one are the ones issued before 1978.
>>The replacement will have a 10-year expiration date.  Green cards issued after
>>1978 will not have to be replaced and will continue to have no expiration
>>date.

A friend of mine got green card recently.....The NEW green card will 
expire in 10 years!. He doesn't know what is going to happen after that.

>If this issue should come up at a later date, considering citizenship will
>be a worthwhile option, especially after living here for 10 years.

Well....It depends....some people would like to keep foreign citizenship
for specific reasons......I know a few people would like to keep foreign
citizenship so that they could go back home after retire....They think
that it should be better and cheaper to go back home. 


>Vijay.

Darmawan
From: wiryaman@riscee.pko.dec.com (Santa Wiryaman)
Newsgroups: alt.visa.us
Subject: 10 year cap on green cards?
Date: 15 Dec 92 15:38:41 GMT
Distribution: usa
Organization: Digital Equipment Corporation, Maynard MA

I heard from somebody in the SF Bay area that there is a new immigration law
which requires all US permanent residents to obtain a form (I90?) to register
for a new green card.  This new green card has an expiration date of 10 years.

Does anybody has anymore details to confirm or deny this?


-- 
Santa Wiryaman         I am not only an NFS server expert, I am also a client.

INTERNET : wiryaman@riscee.pko.dec.com
UUCP     : ...!decwrl!riscee.pko.dec.com!wiryaman
Newsgroups: alt.visa.us
From: vkg1@Ra.MsState.Edu (VINAY GIDWANI)
Subject: VISAS
Organization: Mississippi State University
Distribution: usa
Date: Fri, 18 Dec 1992 05:51:06 GMT

If I get enough information, I'll probabaly post it in the net as a FAQ.

My email address is vkg1@ra.msstate.edu


--

Vinay Gidwani
email vkg1@ra.msstate.edu
Newsgroups: alt.visa.us
From: gdoraisw@eng.auburn.edu (Gopalakrishnan Doraiswamy)
Subject: LOCATION OF I.N.S. OFFICES 
Reply-To: gdoraisw@eng.auburn.edu
Organization: Auburn University Engineering
Date: Fri, 18 Dec 1992 22:56:47 GMT

Can anyone suggest an I.N.S. office (other than Atlanta) near Atlanta
where EAD can be obtained over the counter/on the same day?
thanks a lot for your time
send  email  to 

	rek@eng.auburn.edu

or post to group.

Gopal
From: thiyagarajan@mims.enet.dec.com (R. Thiyagarajan)
Newsgroups: alt.visa.us
Subject: Re: 10 year cap on green cards?
Date: 15 Dec 92 18:32:54 GMT
Distribution: usa
Organization: Digital Equipment Corporation


In article <1992Dec15.153841.6828@engage.pko.dec.com>, wiryaman@riscee.pko.dec.com (Santa Wiryaman) writes...
>I heard from somebody in the SF Bay area that there is a new immigration law
>which requires all US permanent residents to obtain a form (I90?) to register
>for a new green card.  This new green card has an expiration date of 10 years.
> 
>Does anybody has anymore details to confirm or deny this?
> 

Yes, I have seen new green-cards with 10 year life-time

RT
> 
>-- 
>Santa Wiryaman         I am not only an NFS server expert, I am also a client.
>
From: 5546yuj@vms.csd.mu.edu
Newsgroups: alt.visa.us
Subject: Can I leave US for Canada?
Date: 18 Dec 1992 19:24:23 GMT
Organization: Marquette University - Computer Services
Reply-To: 5546yuj@vms.csd.mu.edu
NNTP-Posting-Host: vmsf.csd.mu.edu

Hello, Everybody:

I am now a F-1 student. I will submit my permanent resident petition soon.
I wish to know if I can go to Canada for 1 year postdoctoral study immediately 
after I turn in my PR application?

Thanks for your response and wish you all a happy Christmas.


JY

Newsgroups: alt.visa.us,soc.culture.indian
From: ff76@vaxb.acs.unt.edu (Jhinuk Chowdhury)
Subject: US born child of green card holders
Organization: University of North Texas
Date: Sat, 19 Dec 1992 05:43:51 GMT

BACKGROUND:  

  My wife and I are citizens of India and resident aliens (green card 
holders) in the US.  Our 7-month old son (who was born in the USA) will be 
one week shy of 1 year of age when we will fly to India in May 1993 (for 
our biennial summer sojourn).  When we return, he will be 1 year 2 months 
of age. 

QUESTION:  

  I wish to know what choices we have (and the implications thereof) with 
regard to how we could handle his travel documents and, consequently, his 
citizenship/immigration identity.  

  I understand that I have the option of obtaining a US passport for my 
son.  Since my wife and I do not expect to seek US citizenship in the 
foreseeable future, this would entail obtaining an Indian visa for *only* 
my son each time we visit India.  (A hassle that I would love to avoid.)  
Other than protocol, what implication will this action have for his 
personal choice of citizenship later in life?  (By the way, when does he 
require to declare his choice and to whom?)  How does this action 
complicate matters if, in the future, we decide to return to India 
permanently? 

  The second option is to have his name appended to my wife's Indian 
passport.  Then, of course, my wife and son would always have to travel 
together (which, actually, is not a major predicament for a few years to 
come).  I suppose that, in this case, my son would have his choice of 
citizenship when he attains adulthood.  Will that be true regardless of 
where he happens to reside when he makes that choice?  Are there any other 
implications?  

  Third, could an infant have his own separate (Indian or US) passport?  

  Finally, are there any additional options?  

  I appreciate your reading my query and your forthcoming suggestions.  In 
case I receive sufficient e-mail requesting a summary, I will be happy to 
post one. 

Cordially,   - Jhinuk. 

Jhinuk Chowdhury,  chowdhur@cobaf.unt.edu   - or -   ff76@vaxb.acs.unt.edu.
From: jxs18@po.CWRU.Edu (Jerry Sy)
Newsgroups: alt.visa.us
Subject: green card interview experience
Date: 18 Dec 1992 17:20:44 GMT
Organization: Case Western Reserve University, Cleveland, OH (USA)
Reply-To: jxs18@po.CWRU.Edu (Jerry Sy)
NNTP-Posting-Host: hela.ins.cwru.edu


hi, me and my wife are scheduled for a green card interview in 2 weeks,
I'd like to know from people in the net who already went through
the interview process, particularly for married couples, the questions
that the INS ask.

Do they ask more questions to married couples than to a single person
other than the customary "Are you a Communist, felon, drug dealer ?"
etc. 

please reply by email if possible.

thanks
jerry
From: cd187@cleveland.Freenet.Edu (Aye Naing)
Newsgroups: alt.visa.us
Subject: practical training
Date: 20 Dec 1992 06:00:24 GMT
Organization: Case Western Reserve University, Cleveland, Ohio (USA)
NNTP-Posting-Host: hela.ins.cwru.edu


Hello netters

I have a situation like this:
I have finished my first MS four years ago in U.S.
I then finished another MS in Different area two years ago 
also from U.S. Then, i went on to a Ph.D program for last
couple of years. Now, due to some personal reasons i would
like to stop doing my Ph.D and try to find job.

My question is:

(1) What kind of Practical Training i can apply?
    Precompletion or Post completion.
(2) I have never took practical training after last two 
    degrees. So how long i can stay on the Practical Training?
(3) Do i need a job offer for my situation?
(4) What is the best starting place to seek my practical training?
     ( I am still in school in this moment as full time student)

Note: I am holding a F-1 visa.

Thank you very much. 

D. Lin

Newsgroups: alt.visa.us
From: cychong@magnus.acs.ohio-state.edu (Chi Yin R Chong)
Subject: Need FAQ about F-1 and J-1 and H-1 visas
Organization: The Ohio State University
Date: Mon, 14 Dec 1992 20:34:01 GMT


Hi,

     I would like to know if there is/are any FAQ posted already or
going to be posted in this newsgroup. If the FAQ has been posted already,
can anyone tell me where I can get that FAQ file?

     Thanks in advance.


...........................................................................
.        ________                                                         .
.       |________|               Chi Yin Robert Chong                     . 
.        \      /                                                         .
.        /      \        E-mail: cychong@magnusug.acs.ohio-state.edu      .
.       /        \               robert@chagall.eng.ohio-state.edu        .
.      /          \                                                       .
.     |  MILK does body good!!                                            .
.     |            |               LIFE IS SHORT. WORK HARD.              .
.     |            |                                                      .
.     |            |       "If you've only one thing you're good at,      .
.     |            |        don't worry about you just have one.          .
.     |____________|        Try your best to make it be your the best.    .
.                           Don't even try to think you can be an all     .
.                           round person, otherwise you will definitely   .
.                           be an all 'bad' person."                      . 
.                                                                         .
...........................................................................
From: littlec1@jaguar.uofs.edu (Chris Little)
Newsgroups: alt.visa.us
Subject: Do H-1's pay Social Security ?
Date: 17 Dec 92 19:17:53 GMT
Organization: University of Scranton


I know that J-1 and F-1 visa holders do not have to pay Social Security,
but what is the case for H-1 visa holders?

Please e-mail me directly.  Thank you.

--
Chris Little, Programmer/DBA                    University Computing Systems
                                                University of Scranton
  LITTLEC1@JAGUAR.UOFS.EDU                      Scranton, PA 18510
Newsgroups: alt.visa.us
From: ludemann@quintus.com (Peter Ludemann)
Subject: Re: Canadian citizens working in the US
Keywords: TC Free Trade Canada US professional
Organization: Quintus Corporation, Palo Alto, CA
Date: Sat, 12 Dec 1992 01:39:48 GMT

In article <85141@ut-emx.uucp>, shoroff@ccwf.cc.utexas.edu (Srihari Shoroff) writes:
> I saw an ad  which said this:
> *************
> Immigration status: You must be a U.S. or Canadian Citizen or have a
> Permanent Residence Visa.
> *************
> I'm just curious to know about the provisions which make it easier for employers
> to hire canadian citizens. Dont they have to go thro the H-1 work permit
> process etc? 

The Free Trade Agreement between Canada and the US provides for a special
category of visa for "professionals".  If you qualify under the list of jobs,
the procedure for getting a one-year, renewable "TC" visa is:
- obtain an offer letter from a company
- go to the border
- present the offer letter, your university diploma, and passport
- pay with cash (I think it's $50)
- wait 10-20 minutes for it to be processed

That's it!  (At least for a Canadian getting an American visa.)
The procedure varies slightly at different border crossings; for example,
at Vancouver Airport, they like to get the papers a day or two in advance
but at Toronto they refuse to look at the papers in advance.

(A similar procedure exists for L-1 visas.)

There's a special B-2 category for non-Canadian spouses of Canadians.

For more information, I suggest you phone the nearest American border
crossing to you (not INS, who seem to provide only recorded messages about
migrant agricultural work permits) --- when I did that, I got the telephone 
number of a "TC" specialist who promptly provided me with all the information,
including the list of allowed "professionals".

- peter ludemann

Newsgroups: alt.visa.us,soc.culture.indian
From: thomke@mtl.mit.edu (Stefan Thomke)
Subject: Re: US born child of green card holders
Organization: MIT Microsystems Technology Laboratories
Date: Sun, 20 Dec 1992 02:25:10 GMT

In article <1992Dec18.234351.1@vaxb.acs.unt.edu> ff76@vaxb.acs.unt.edu (Jhinuk Chowdhury) writes:
>BACKGROUND:  
>
>  My wife and I are citizens of India and resident aliens (green card 
>holders) in the US.  Our 7-month old son (who was born in the USA) will be 
>one week shy of 1 year of age when we will fly to India in May 1993 (for 
>our biennial summer sojourn).  When we return, he will be 1 year 2 months 
>of age. 
>
>QUESTION:  
>
>  I wish to know what choices we have (and the implications thereof) with 
>regard to how we could handle his travel documents and, consequently, his 
>citizenship/immigration identity.  
>
>  I understand that I have the option of obtaining a US passport for my 
>son.  Since my wife and I do not expect to seek US citizenship in the 
>foreseeable future, this would entail obtaining an Indian visa for *only* 
>my son each time we visit India.  (A hassle that I would love to avoid.)  
>Other than protocol, what implication will this action have for his 
>personal choice of citizenship later in life?  (By the way, when does he 
>require to declare his choice and to whom?)  How does this action 
>complicate matters if, in the future, we decide to return to India 
>permanently? 
>
>  The second option is to have his name appended to my wife's Indian 
>passport.  Then, of course, my wife and son would always have to travel 
>together (which, actually, is not a major predicament for a few years to 
>come).  I suppose that, in this case, my son would have his choice of 
>citizenship when he attains adulthood.  Will that be true regardless of 
>where he happens to reside when he makes that choice?  Are there any other 
>implications?  
>
>  Third, could an infant have his own separate (Indian or US) passport?  
>
>  Finally, are there any additional options?  
>
>  I appreciate your reading my query and your forthcoming suggestions.  In 
>case I receive sufficient e-mail requesting a summary, I will be happy to 
>post one. 
>
>Cordially,   - Jhinuk. 
>
>Jhinuk Chowdhury,  chowdhur@cobaf.unt.edu   - or -   ff76@vaxb.acs.unt.edu.

I am German and my wife is Indian. Our son was born in Boston this year 
and has his own passports (American and German). We were initially 
interested in getting an Indian passport for him but were told that he
doesn't have the right to get one (only the citizenship of the father
matters; the fact that my wife is Indian is apparently irrelevant to
the Indian government). In any case, we'll just have to get visas each
time we go to India which is really no big deal.

Stefan
Newsgroups: alt.visa.us
From: arevalo@binah.cc.brandeis.edu
Subject: Changing cards...
Reply-To: arevalo@binah.cc.brandeis.edu
Organization: Brandeis University
Date: Wed, 16 Dec 1992 06:16:47 GMT

I've heard from my mom that some people have to get a new
green card (although it's now pink). Anyone heard of this.
What dates does it affect? I think I've got the new one (pink).

Newsgroups: alt.visa.us