Subject: Re: looking for relevant literature
From: wpenrose@interaccess.com (William R. Penrose)
Date: Fri, 13 Dec 1996 17:56:01
In article <58rr26$s0k@neptune.worldonline.nl> Michel.van.Galen@wkap.nl (Michel van Galen) writes:
>my name is Michel van Galen and I am studying marketing of
>services.Right now I am trying to write a paper on the use,
>possibilities and future of electronic promotion. I would like to ask
>if anyone can recommend some (recent) literature in this field or can
>direct me to other resources (e.g. newsgroups, listservers) where I
>can find this information. Any tip will be appreciated.
Practically every Internet magazine on the newsstands is full of articles on
promotion of products on the Internet. The only thing I haven't seen, is
factual information on how effective it is. We have bought a small number of
items from Web ads, but mostly the net is used to obtain data sheets and
reference data, or to converse with vendors and customers. Only rarely with
potential customers.
Bill
************************************************************
Bill Penrose, Sr. Scientist, Transducer Research, Inc.
600 North Commons Drive, Suite 117
Aurora, IL 60504
630-978-8802, fax -8854, email wpenrose@interaccess.com
************************************************************
Purveyors of fine gas sensors and
contract R&D; to this and nearby galaxies.
************************************************************
Subject: cepstrum
From: James Salsman
Date: Fri, 13 Dec 1996 21:45:13 -0800
[This was sent to the maintainer of the comp.speech FAQ :jps]
Please add these remarks to the comp.speech FAQ:
> Q2.5: Signal processing in speech technology
>...
> There are many good books which discuss signal processing for speech:
>
> * Digital processing of speech signals; L. R. Rabiner, R. W.
> Schafer. Englewood Cliffs; London: Prentice-Hall, 1978
This book, and nearly all that cite it, present a
different definition of "cepstrum" than the paper in
which the term was originally coined:
"The Quefrency Alanysis of Time Series for Echoes:
Cepstrum, Pseudo-Autocovariance, Cross-Cepstrum, and
Saphe Cracking" by Bruce P. Bogert, M. J. R. Healy, and
John W. Tukey on pp. 209-243 of _Proceedings_of_the_
_Symposium_on_Time_Series_Analysis_, edited by
Murray Rosenblatt; held at Brown University June 11-14,
1962 (New York & London: John Wiley.)
It is my professional and considered opinion that the
Schafer-Rabiner definition of cepstrum is not only
wrong, but that it is wrong as a direct result of
long-obsolete military security concerns with encryption
and automatic methods of breaking the encryption of
speech transmissions coded with the Bogert-Healy-Tukey
cepstrum method, which has become no longer well-known
to speech scientists because of these obsolete concerns.
I have compiled a variety of evidence to support this
claim, and I am persuing a Freedom of Information Act
request with the U.S. Air Force to clarify the situation.
If there is any question from those who believe that
cepstra entail any inverse Fourier transform (iFFT),
these definitions from Appendix 2 of the paper cited
above (p. 242) show that they do not:
spectrum: A dissection of the variance of time series
into portions associated with various frequencies.
cepstrum: A dissection of the variance of frequency
series into portions associated with various quefrencies.
quefrency: The number of cycles of frequency series
per unit frequency.
> Q3.2: Information on speech coding and compression
>
> Reference Books
Many citations in section 3.2 fall prey to the same
misinformation, so please include the same note there,
or a pointer to the note in Section 2.5.
Please note that this discussion has nothing to do
with "LPC cepstra" or any other kind of linear
predictive coding. The Bogert-Healy-Tukey cepstra
is strictly a spectrum-analytical technique which
primarily involves two forward FFTs and no iFFTs
(execept for the decoding process which requires
two iFFTs and no FFTs.)
I hereby place this message into the public domain;
it may be reproduced in the comp.speech or sci.crypt*
FAQ or anywhere else. Thanks.
Sincere regards,
:James Salsman
Systems Alanyst
Applied Speech Technology Laboratory
Center for the Study of Language and Information
Stanford University
Stanford, California
Subject: Re: Heavy Metal Testing in plants
From: Robert Davis
Date: Sat, 14 Dec 1996 00:40:22 -0800
John Glowacki wrote:
>
> jlee@monmouth.com (John Lee) wrote:
> >Hi,
> > I'm a Sophomore at the Ocean Township High School in NJ. For
> >my Honors biology class, each person has to do an orginal research
> >project that will be presented to the NJ Junior Academy of Science.
> > For my project, I'm doing research to see if crop plants will
> >take in heavy metals if municipal sludge is used to fetilize the soil.
> >
> > My question is, what's the best/easiest way for me to detect
> >heavy metals, such as Mercury, Lead, or Cadmium. What kind of
> >equipment do I need? How would I be able to do this?
> >
> > Thank you.
> >
> > Johnie Lee
> >
>
> One method is with an "Atomic Absorption Spectrophotometer", better known
> as "AA". Before analysis you need to get the plant tissue into solution
> using an acid digestion.
>
> I would suggest contacting your local University for help in this
> venture. Also, NJ has many many private environmental labs. They maybe
> able to offer assistence.
>
> Another good contact would be "AWRA", American Water Resources
> Association. http://www.uwin.siu.edu/~awra/index.html They might offer
> some good leads.
>
> Good luck. You should find some good usable data. You might even
> contact your state dept. of Natural Resources. They probibly allready
> have data on this.
Check your local or nearest nuclear power station, they by NRC
regulation must analyze all consumable products to the ppb level using a
number of techniques, FTIR, IC, AA and MS. Typically they would bomb,
or ash your sample (combust or dewater) and determine the products.
Samples form masking tape to white out are tested. Metals to the ppb
level can be reported. You can't do any better than the nuclear industy
QA.
Subject: Re: Low Cost DATA AQUISITION system using your PC
From: Anthony James Bentley
Date: Sat, 14 Dec 1996 12:25:27 +0000
In article , "William R. Penrose"
writes
>When you are making a product for sale, you can't afford to spend more than
>about 20% of the price in making the product. This *includes* labor. The
>rest of the cost is in overhead (keeping the lites and fones working), sales
>and advertising, sales commissions, returns and warranty repairs, customer
>service, taxes, blah, blah... Oh, and also profit, which is the only reason
>for going into business in the first place. Instrument companies typically
>generate 5-15% profit.
>
>Bill
True, very true.
But a common indusry standard is to simply double (or more) the material
input costs to get the final sales figure. That generates a final profit
around 10% without requiring complex cost accounting.
I used to work for a company using that system. Then they began to split
into smaller units and the internal sales traffic pushed the prices up
as they doubled at each stage. Quite soon you get silly things like a $2
cable costing $32.
Of course then they go out of business.
--
AJ Bentley
Surface Data
Scientific Software Development
5 Sandhawes Hill
East Grinstead
West Sussex
United Kingdom RH19 3ET
Web Site http://www.surface.demon.co.uk
Subject: research networks Europe
From: Thomas Fuegner Dipl.Kfm. (GER) <100126.3042@CompuServe.COM>
Date: 14 Dec 1996 20:04:14 GMT
Deutsche Übersetzung => weiter unten
Dear User!
For a study on RESARCH NETWORKS in Europe I despeartely need
infos about the "state of the art" of networking in
online-structures in this specific branch.
I am searching for details on
1.) sources of know how on this topic
2.) names and qantitative data of specific networks (DFN, EARN,
CORDIS, Y-NET, ...)
(Numbers of users, qantity of data being transferred,
specific market penetration
and -share etc.)
3.) different goals and perspectives
4.) qualitative specifications USP (unique selling proposition)
of each network
Even the smallest feedback is thankfully appreciated!!
Thanx so much in advance!
th.fun
Für eine Studie über Forschungsnetze in Europa suche ich
Informationen über den "Stand der Dinge" beim networking in
online-Strukturen in diesem speziellen Bereich... Ich suche
Details über
--
Research Networks, - their goals, development, market value and
-share, perspectives... my golden retriver, CAT-sailing at the
Starnberg Lake (GERMANY)
Subject: CONFLUENCES
From: pbrun@planete.net (Philippe Brun)
Date: 14 Dec 1996 23:36:27 GMT
Dear Colleagues,
We are pleased to announce the publication of the first issue of a new
academic Web review entitled "Confluences".
The Web address is : http://www.liane.net/confluences
Manuscript submissions are encouraged preferably through E-mail-attached
files (Word, WordPerfect or RTF formats). The paper format is excluded.
Articles (critical studies or reviews, experimental studies, recent
bibliographies, etc...) may be submitted either in English or French.
Yours sincerely.
Philippe Brun (pbrun@planete.net)
Laboratoire de psycho-biologie du developpement
EPHE, Paris, France
Philippe Romanski (Philippe.Romanski@univ-rouen.fr)
Department of English
University of Rouen, Rouen, France
