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#255 From: Rahul Bhagirath Kasat <rkasat@...>
Date: Sat Jul 3, 2004 6:00 pm
Subject: Re: doubt 		rkasat14
Offline Offline
Send Email Send Email
  
Hi Varathu,

There are lots of good books on spectroscopy which can give you a great
deal of information about the questions you are asking.

http://www.wiley.com/WileyCDA/WileyTitle/productCd-0471974218.html (High
Resolution Spectroscopy, Second Edition
J. Michael Hollas)

Anyway, it has do with the derivation of the selection rules for these
spectroscopies.

In IR, if you look at the basic eqaution of the transition moment
integral, we have dipole moment in it. This term is then expanded. After
applying the orthogonality theorem, one gets the selection rules for IR
which says that the dipole moment has to change along that coordinate. I
am sure you may not want to go into details unless and until you are
really after something. I guess the convention is to accept these
selection
rules (rules which define why we see some peaks in spectra and why not
other).

The answer for MW is also similar.

I hope Ms. Vandana will agree with this answer.

Thanks

- Rahul

Purdue University,
West Lafayette, IN 47907

*************************************************************************
On Sat, 3 Jul 2004, [iso-8859-1] varathu rajan wrote:

> Dear Madam,
>      My question is why a molecule should have permanent dipole moment to
absorb the Micro Wave radiation.
>     In other words why molecules such as Hydrogen does not give rotational
spectra?
> Similarly why symmetrical stretching of  CO2 is Infrred inactive?
>
> Friendly,
> Varathu.
>
> Vandana Sharma <vandanas@...> wrote:
> Dear Varathu,
>
> Could you please elaborate your question.
>
> Regards,
> Vandana
>
>
> Vandana Sharma
> Research Scholar
> Laboratory Astrophysics,
> LAB- 570
> Space and Planetary Atmosphere Division,
> Physical Research Laboratory,
> Navrangpura,
> Ahmedabad- 380 009
> Gujarat, India
>
> Phone No : (91)-079-6302129-Ext-4570/4567(lab)
> Email : vandanas@...
> van_res@...
> URL : http://www.prl.ernet.in/~vandanas
>
> On Thu, 24 Jun 2004, [iso-8859-1] varathu rajan wrote:
>
> > Dear Friends,
> >
> > I have a dobt in the fundamentals of spectrosopy.
> > My doubt is
> > 1.For a molecule to be MW active,why it should have permanent Dipole moment
&.
> > 2.To be IR active, why a molecule should undergo net change in its dipole
moment?
> >
> > Plz clear my doubts
> >
> > Friendly,
> > Varathu
> >
> >
> >
> > Yahoo! India Matrimony: Find your partner online.
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
> Yahoo! India Careers: Over 50,000 jobsonline.

Reply | Forward | Messages in this Topic (5)
#254 From: varathu rajan <varachem2001@...>
Date: Sat Jul 3, 2004 8:06 am
Subject: Re: doubt 		varachem2001
Offline Offline
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Dear Madam,
     My question is why a molecule should have permanent dipole moment to absorb the Micro Wave radiation.
    In other words why molecules such as Hydrogen does not give rotational spectra?
Similarly why symmetrical stretching of  CO2 is Infrred inactive?
 
Friendly,
Varathu.

Vandana Sharma <vandanas@...> wrote:
Dear Varathu,

Could you please elaborate your question.

Regards,
Vandana


Vandana Sharma
Research Scholar
Laboratory Astrophysics,
LAB- 570
Space and Planetary Atmosphere Division,
Physical Research Laboratory,
Navrangpura,
Ahmedabad- 380 009
Gujarat, India

Phone No : (91)-079-6302129-Ext-4570/4567(lab)
Email : vandanas@...
van_res@...
URL : http://www.prl.ernet.in/~vandanas

On Thu, 24 Jun 2004, [iso-8859-1] varathu rajan wrote:

> Dear Friends,
>
> I have a dobt in the fundamentals of spectrosopy.
> My doubt is
> 1.For a molecule to be MW active,why it should have permanent Dipole moment &.
> 2.To be IR active, why a molecule should undergo net change in its dipole moment?
>
> Plz clear my doubts
>
> Friendly,
> Varathu
>
>
>
> Yahoo! India Matrimony: Find your partner online.




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Reply | Forward | Messages in this Topic (5)
#253 From: Vandana Sharma <vandanas@...>
Date: Fri Jul 2, 2004 4:01 pm
Subject: Re: doubt 		vandypph
Offline Offline
Send Email Send Email
  
Dear Varathu,

Could you please elaborate your question.

Regards,
Vandana


  Vandana Sharma
  Research Scholar
  Laboratory Astrophysics,
  LAB- 570
  Space and Planetary Atmosphere Division,
  Physical Research Laboratory,
  Navrangpura,
  Ahmedabad- 380 009
  Gujarat, India

  Phone No : (91)-079-6302129-Ext-4570/4567(lab)
  Email    : vandanas@...
             van_res@...
  URL      : http://www.prl.ernet.in/~vandanas

On Thu, 24 Jun 2004, [iso-8859-1] varathu rajan wrote:

> Dear Friends,
>
>  I have a dobt in the fundamentals of spectrosopy.
> My doubt is
> 1.For a molecule to be MW active,why it should have permanent Dipole moment &.
> 2.To be IR active, why a molecule should undergo net change in its dipole
moment?
>
> Plz clear my doubts
>
> Friendly,
> Varathu
>
>
>
> Yahoo! India Matrimony: Find your partner online.

Reply | Forward | Messages in this Topic (5)
#252 From: varathu rajan <varachem2001@...>
Date: Thu Jun 24, 2004 8:41 am
Subject: doubt 		varachem2001
Offline Offline
Send Email Send Email
 
Dear Friends,
 
 I have a dobt in the fundamentals of spectrosopy.
My doubt is
1.For a molecule to be MW active,why it should have permanent Dipole moment &.
2.To be IR active, why a molecule should undergo net change in its dipole moment?
 
Plz clear my doubts
 
Friendly,
Varathu
 
 

Yahoo! India Matrimony: Find your partner online.


Reply | Forward | Messages in this Topic (5)
#251 From: "envirorecruiter" <envirorecruiter@...>
Date: Thu Jul 1, 2004 3:24 pm
Subject: Analytical Chemist position in Maryland 		envirorecruiter
Offline Offline
Send Email Send Email
  
#2065 FTIR/Raman Spectroscopist - Aberdeen/Baltimore NEW
Seeking a FTIR/Raman Spectroscopist with Ph.D. in chemistry or
equivalent experience to conduct/particpate in research projects,
write test plans, technical proposals and reports, anaylyze samples
by FTIR or other analytical instrumentation and perform quality
assurance/quality control procedures. This position requires 5 or
more years experience with GFourier transform infrared (FTIR) and/or
Raman Spectroscopy. This job involves the handling of highly toxic
materials using strict safety precautions. Good written and oral
communication skills are required as is the ability to work as part
of a team. U.S. CITIZENSHIP WITH ABILITY TO OBTAIN AND MAINTAIN A
SECRET SECURITY CLEARANCE is also required.

Three or more years of previous experience with NIST and/or DoD
chemical/biological defense programs or federal work experience are
desired. Experience directing a small team of analysts is a plus.

The salary range for this Contract to Hire position is 60-65K.

To be considered, please e-mail your resume to madoffice@...

Reply | Forward | Messages in this Topic (1)
#250 From: "ahoebiaban" <ahoebiaban@...>
Date: Wed Jun 23, 2004 7:07 am
Subject: Hello 		ahoebiaban
Offline Offline
Send Email Send Email
  
Dear Group:
           Hello

I study abuot absorbion spectum of CH2O (formaldehyde).
I want to simulat it in Mathematica By Time Dependent Perturbation
  Formolation.
Can you help me.

my Emial:   8103504@...

Best     wishes
zakaria Farhadi

Reply | Forward | Messages in this Topic (1)
#249 From: Harold Baker <stall_n_spin@...>
Date: Fri Jun 18, 2004 7:09 pm
Subject: Not an expanding universe? 		stall_n_spin
Offline Offline
Send Email Send Email
 

Not an expanding universe?

Look at this:

June 2004 Letter

Cheers

Do you Yahoo!?
New and Improved Yahoo! Mail - Send 10MB messages!

Reply | Forward | Messages in this Topic (1)
#248 From: "Designer1" <Designer1@...>
Date: Thu Jun 3, 2004 5:57 am
Subject: Re: (unknown) 		gd_oes
Offline Offline
Send Email Send Email
 
Please contact Thomas Nelis about this.
 
Barbara Hoving
----- Original Message -----
Sent: Sunday, March 28, 2004 3:40 PM
Subject: [spectroscopy] (unknown)

Hello All,
Is any of you using delay line detector and COBOLD-PC2002(TDC8
Standard) to derive position and time information. If, yes then can you
please tell me that how you get the time information? I mean, which
spectra gives you the information about time.

Eagerly waiting for the reply.

Vandana


Vandana Sharma                         
Research Scholar
Laboratory Astrophysics,
Div- SPA-AM, Lab- 570          
Physical Research Laboratory,     
Navrangpura,
Ahmedabad- 380 009  
Gujarat, India                   
Email: vandanas@...
Phone No : (91)-079-6300505(hostel)
          : (91)-079-6302129-Ext-4570/4567(lab)     



Reply | Forward | Messages in this Topic (5)
#247 From: "Designer1" <Designer1@...>
Date: Thu Jun 3, 2004 5:54 am
Subject: Re: Peak Fitting Software 		gd_oes
Offline Offline
Send Email Send Email
 
Please contact Thomas Nelis
 
Barbara Hoving
----- Original Message -----
Sent: Thursday, April 15, 2004 4:30 AM
Subject: [spectroscopy] Peak Fitting Software

PeakFit 4.12 helps you separate overlapping peaks by statistically
fitting numerous peak functions to one data set, which can help you
find even the most obscure patterns in your data. The background can
be fit as a separate polynomial, exponential, logarithmic, hyperbolic
or power model. This fitted baseline is then subtracted before peak
characterization data (such as areas) is calculated, which gives much
more accurate results. And any noise (like you get with
electrophoretic gels or Raman spectra) that might bias raw data
calculations is filtered simply by the nonlinear curve fitting
process. Nonlinear curve fitting is essential for accurate peak
analysis and accurate research.

http://www.seasolve.com/products/peakfit/index.html

PeakFit was recently re-acquired by Systat Software, Inc.

Joel Bondurant
Scientific & Engineering Account Manager
SYSTAT Software, Inc
501 Canal Blvd, Suite C
Richmond, CA. 94804
ph. 510-231-0968
fx. 510-231-4789
jbondurant@...
www.systat.com

Reply | Forward | Messages in this Topic (2)
#246 From: "cestsi04" <cestsi04@...>
Date: Sat May 8, 2004 7:22 am
Subject: articles on the periodic system of chemical elements 		cestsi04
Offline Offline
Send Email Send Email
  
The following set of articles on the periodic system and closely
related issues have appeared in Foundations of Chemistry
since publication began 6 years ago. They can all be
downloaded from the journal web pages.

Please also note that the current issue of the journal on
chemical explanation can all be downloaded free of charge.
This includes the final two articles listed below.

-----------------------------------------------------------


Foundations of Chemistry

Philosophical, Historical, Educational and Interdisciplinary
Studies of Chemistry

http://www.kluweronline.com/issn/1386-4238

then go to,

Journal Contents  and look for the particular article of interest.


---------------------------------------------------------------------------=
-----

volume 1, issue 2, 1999.

The Use of One-Electron Quantum Numbers to Describe
Polyelectronic Systems
pp. 173-181   Robert M. Richman

---------------------------------------------------------------------------=
-------------
volume 1, issue 3, 1999.

The Atomic Shell-Structure Formula 2n2
pp. 293-294   Richard D. Harcourt


A Critique of Atkins' Periodic Kingdom and Some Writings on
Electronic Structure
pp. 295-303   Eric R. Scerri

----------------------------------------------------------------
volume 2, issue 1, 2000.

Letter to the Editor
pp. 75-76 Robert K. Nesbet

Response
pp. 77-78  Eric Scerri

---------------------------------------------------------------------------=
-----
volume 2, issue 3, 2000.

Numerical Classification of the Chemical Elements and Its
Relation to the Periodic System
pp. 237-263   Peter Sneath

----------------------------
volume 3, issue 2, 2001

Editorial 8 - Special Issue on the Periodic System of the
Elements
pp. 97-104 Eric R. Scerri


Argon and the Periodic System: the Piece that Would not Fit
pp. 105-128 Carmen J. Giunta 


The First Subatomic Explanations of the Periodic System
pp. 129-143 Helge Kragh


What and How Physics Contributes to Understanding the
Periodic Law
pp. 145-181 V. N. Ostrovsky


Bibilography of Secondary Sources on the Periodic System of the
Chemical Elements
pp. 183-195 Eric R. Scerri, Jacob Edwards

---------------------------------------------------------------------------=
-
volume 4, issue 2, 2002

Developing the Periodic Law: Mendeleev's Work During
1869-1871
pp. 127-147 Nathan M. Brooks

--------------------------------------------------------------------
volume 5, issue 1, 2003.

Are Laws of Nature and Scientific Theories Peculiar in
Chemistry? Scrutinizing Mendeleev's Discovery
pp. 7-22 R. Vihalemm


Predictions, Retrodictions and the Periodic Table
pp. 85-88 Michael Akeroyd

-----------------------------------------------------------------
volume 5, issue 2, 2003.

The epistemological status of the chemical concept of element
pp. 113-145 F.A. Paneth


Chemical Laws and Theories: A Response to Vihalemm
pp. 165-174    John R. Christie, Maureen Christie

---------------------------------------------------------------------------=
-----
volume 5, issue 3, 2003.

Mendeleev's Discovery of the Periodic Law: The Origin and the
Reception
pp. 189-214     Masanori Kaji

---------------------------------------------------------------
volume 6, issue 1, 2004.

Just how ab initio is ab initio quantum chemistry? Has Quantum
Mechanics Explained the Periodic Table?
pp. 93-116   Eric R. Scerri

… hasn't it? A commentary on Eric Scerri's Paper ``Has
Quantum Mechanics Explained the Periodic Table?''
pp. 117-132      Bretislav Friedrich

Reply | Forward | Messages in this Topic (1)
#245 From: Harold Baker <stall_n_spin@...>
Date: Thu May 6, 2004 12:22 am
Subject: If any of you are interested in science then here is some recent thinking: 		stall_n_spin
Offline Offline
Send Email Send Email
 

If any of you are interested in science then here is some recent thinking:

http://www.rbduncan.com/gr&qm&e

 

Cheers

Do you Yahoo!?
Win a $20,000 Career Makeover at Yahoo! HotJobs

Reply | Forward | Messages in this Topic (1)
#244 From: "Joel Bondurant" <jbondurant@...>
Date: Wed Apr 14, 2004 6:30 pm
Subject: Peak Fitting Software 		joelbondurant
Online Now Online Now
Send Email Send Email
  
PeakFit 4.12 helps you separate overlapping peaks by statistically
fitting numerous peak functions to one data set, which can help you
find even the most obscure patterns in your data. The background can
be fit as a separate polynomial, exponential, logarithmic, hyperbolic
or power model. This fitted baseline is then subtracted before peak
characterization data (such as areas) is calculated, which gives much
more accurate results. And any noise (like you get with
electrophoretic gels or Raman spectra) that might bias raw data
calculations is filtered simply by the nonlinear curve fitting
process. Nonlinear curve fitting is essential for accurate peak
analysis and accurate research.

http://www.seasolve.com/products/peakfit/index.html

PeakFit was recently re-acquired by Systat Software, Inc.

Joel Bondurant
Scientific & Engineering Account Manager
SYSTAT Software, Inc
501 Canal Blvd, Suite C
Richmond, CA. 94804
ph. 510-231-0968
fx. 510-231-4789
jbondurant@...
www.systat.com

Reply | Forward | Messages in this Topic (2)
#243 From: "Designer1" <Designer1@...>
Date: Mon Mar 29, 2004 9:05 pm
Subject: Re: (unknown) 		gd_oes
Offline Offline
Send Email Send Email
 
Dear Vandana
 
My name is Barbara and I am the wife of Richard Payling whose website is thespectroscopynet.com. I regret to inform you that Richard died whilst on a walking holiday in Tasmania in February. I am not sure if others in the group will get your message. I  hope so.
 
Barb
----- Original Message -----
Sent: Sunday, March 28, 2004 3:40 PM
Subject: [spectroscopy] (unknown)

Hello All,
Is any of you using delay line detector and COBOLD-PC2002(TDC8
Standard) to derive position and time information. If, yes then can you
please tell me that how you get the time information? I mean, which
spectra gives you the information about time.

Eagerly waiting for the reply.

Vandana


Vandana Sharma                         
Research Scholar
Laboratory Astrophysics,
Div- SPA-AM, Lab- 570          
Physical Research Laboratory,     
Navrangpura,
Ahmedabad- 380 009  
Gujarat, India                   
Email: vandanas@...
Phone No : (91)-079-6300505(hostel)
          : (91)-079-6302129-Ext-4570/4567(lab)     



Reply | Forward | Messages in this Topic (5)
#242 From: "Designer1" <Designer1@...>
Date: Sun Mar 28, 2004 9:25 pm
Subject: Re: Email change 		gd_oes
Offline Offline
Send Email Send Email
 
Dear Christian
 
Dick Payling died in a tragic accident on 26 February while walking in Tasmania.
 
I am not sure what will happen to the website or how to change your address in it. I will forward this message to Thomas Nelis, his colleague and friend in France and hopefully the site will continue and flourish.
 
Barbara
----- Original Message -----
Sent: Sunday, March 28, 2004 11:07 AM
Subject: [spectroscopy] Email change

I'm changing my email account:
New address: carp@...

artimanha@... is no longer used

Thank you
Christian Romero



Reply | Forward | Messages in this Topic (2)
#241 From: Vandana Sharma <vandanas@...>
Date: Sun Mar 28, 2004 5:40 am
Subject: (No subject) 		vandypph
Offline Offline
Send Email Send Email
  
Hello All,
Is any of you using delay line detector and COBOLD-PC2002(TDC8
Standard) to derive position and time information. If, yes then can you
please tell me that how you get the time information? I mean, which
spectra gives you the information about time.

Eagerly waiting for the reply.

Vandana


  Vandana Sharma
  Research Scholar
  Laboratory Astrophysics,
  Div- SPA-AM, Lab- 570
  Physical Research Laboratory,
  Navrangpura,
  Ahmedabad- 380 009
  Gujarat, India
  Email: vandanas@...
  Phone No : (91)-079-6300505(hostel)
           : (91)-079-6302129-Ext-4570/4567(lab)

Reply | Forward | Messages in this Topic (1)
#240 From: "Christian Romero" <artimanha@...>
Date: Sun Mar 28, 2004 1:07 am
Subject: Email change 		andesquim
Offline Offline
Send Email Send Email
  
I'm changing my email account:
New address: carp@...

artimanha@... is no longer used

Thank you
Christian Romero

Reply | Forward | Messages in this Topic (2)
#239 From: "Designer1" <Designer1@...>
Date: Thu Mar 11, 2004 12:30 am
Subject: Re: ElvaX EDXRF spectrometer for non-destructive XRF analysis 		gd_oes
Offline Offline
Send Email Send Email
 
Dear Dmitry
 
My husband Richard (Dick) Payling died on 26 February 2004. I have sent a copy of this email to his friend a colleague, Thomas Nelis, who may be able to assist you in the future.
 
Barbara
----- Original Message -----
Sent: Thursday, March 04, 2004 7:35 PM
Subject: [spectroscopy] ElvaX EDXRF spectrometer for non-destructive XRF analysis

Dear Spectroscopy group members,

Elvatech is proud to announce its product - a desktop EDXRF spectrometer ElvaX capable of
determining concentrations of all constituents with at. no. above Mg in practically any alloy,
liquid, powder or other samples. Determination of gold in precious metal alloys is possible with
accuracy better than 0.3%. This instrument is highly competitive both by measurement accuracy and
price.

The modern easy-to-use software package provides possibilities of both quantitative and qualitative
high-accuracy standardless analysis. Advanced techniques are also available for the highest accuracy
measurements.

Elvatech's products made a good showing on the market since 1991, being installed in industrial,
research and academic laboratories in the USA, India, UAE, Russia, Czech Republic, Slovakia,
Bulgaria, and Ukraine.

For more details, including various applications of ElvaX and other Elvatech's products, please
visit our new web site - http://www.elvatech.com.

For pricing information, please contact sales@.... 

Sincerely,
Elvatech team.

Reply | Forward | Messages in this Topic (2)
#238 From: "Designer1" <Designer1@...>
Date: Thu Mar 11, 2004 12:22 am
Subject: Re: anybody use grams/AI 7 ? 		gd_oes
Offline Offline
Send Email Send Email
  
Dear Zhou

My husband, Richard (Dick) Payling died on 26 February. I don't know
anything about his work, so I have sent a copy of this to Thomas Nelis who
may be able to help you.

Barbara

My husband died on 26 February
----- Original Message -----
From: "Zhou Wei" <findwey@...>
To: <spectroscopy@yahoogroups.com>
Sent: Wednesday, March 10, 2004 3:59 PM
Subject: [spectroscopy] anybody use grams/AI 7 ?


> I met a compatibility problem with this software.
> After i installed it, the standby and hibernation
> functions of my notebook PC were disabled. I want to
> know:
> 1. Does anyone meet the same problem, and any
> solution?
> 2. If this problem cann't be solved, I prefer to
> uninstall grams/AI from my PC. However, i cann't find
> any uninstall program neither in the control panel nor
> in the program folder. I also tried to use norton
> systemwork to remove the program. It seems the program
> was removed, but i still cann't get the standby
> function back. My system is windows XP pro.
>
> look forward to your kind help.
>
> your sincerely
> zhou
>
>
> __________________________________
> Do you Yahoo!?
> Yahoo! Search - Find what you're looking for faster
> http://search.yahoo.com
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>

Reply | Forward | Messages in this Topic (4)
#237 From: Zhou Wei <findwey@...>
Date: Wed Mar 10, 2004 4:59 am
Subject: anybody use grams/AI 7 ? 		findwey
Offline Offline
Send Email Send Email
  
I met a compatibility problem with this software.
After i installed it, the standby and hibernation
functions of my notebook PC were disabled. I want to
know:
1. Does anyone meet the same problem, and any
solution?
2. If this problem cann't be solved, I prefer to
uninstall grams/AI from my PC. However, i cann't find
any uninstall program neither in the control panel nor
in the program folder. I also tried to use norton
systemwork to remove the program. It seems the program
was removed, but i still cann't get the standby
function back. My system is windows XP pro.

look forward to your kind help.

your sincerely
zhou


__________________________________
Do you Yahoo!?
Yahoo! Search - Find what you’re looking for faster
http://search.yahoo.com

Reply | Forward | Messages in this Topic (4)
#236 From: Dmitry Inosov <vosoni@...>
Date: Thu Mar 4, 2004 8:35 am
Subject: ElvaX EDXRF spectrometer for non-destructive XRF analysis 		vosoni
Offline Offline
Send Email Send Email
  
Dear Spectroscopy group members,

Elvatech is proud to announce its product - a desktop EDXRF spectrometer ElvaX
capable of
determining concentrations of all constituents with at. no. above Mg in
practically any alloy,
liquid, powder or other samples. Determination of gold in precious metal alloys
is possible with
accuracy better than 0.3%. This instrument is highly competitive both by
measurement accuracy and
price.

The modern easy-to-use software package provides possibilities of both
quantitative and qualitative
high-accuracy standardless analysis. Advanced techniques are also available for
the highest accuracy
measurements.

Elvatech's products made a good showing on the market since 1991, being
installed in industrial,
research and academic laboratories in the USA, India, UAE, Russia, Czech
Republic, Slovakia,
Bulgaria, and Ukraine.

For more details, including various applications of ElvaX and other Elvatech's
products, please
visit our new web site - http://www.elvatech.com.

For pricing information, please contact sales@....

Sincerely,
Elvatech team.

Reply | Forward | Messages in this Topic (2)
#235 From: Vandana Sharma <vandanas@...>
Date: Sat Feb 21, 2004 10:58 am
Subject: Re: Doubt...... 		vandypph
Offline Offline
Send Email Send Email
  
Hello Sergey,

Thanks for the reply.
But in supersonic beam expansion we extract the central line in which the
concentration is not that much even the mean free path is greater than the
50cm(depends on the pressure ratio). It means after 50 cm another atom or
molecule is coming. Then how do we say that the concentration is more in
the supersonic beam. The concentration of this beam is less than the
effusive beam than why don't we use effusive beam for TOF measurements.

Looking forward for the reply.

Kind regards,
Vandana Sharma


On Fri, 20 Feb 2004, Sergey Egorov wrote:

> other advantages include
>
> a) higher concentration of atoms/molecules
> b) opportunity to obtain new molecular objects like
> clusters
> c)opportunity to make time-of-flight measurements,
> like TOF MS studies.
>
> Regards,
>
> Sergey Egorov,
> Del Mar Ventures
> 4119 Twilight Ridge
> San Diego, CA 92130
> tel +1 (858) 755-6727
> fax +1 (858) 630-2376
> delmar@...
> http://www.sciner.com/
> http://www.femtosecondsystems.com/
>
> --- Vandana Sharma <vandanas@...> wrote:
> > Dear all,
> > What are advantages of doing experiments with
> > supersonic beam? Why it is
> > more superior than the gas cell experiments?
> > One advantage I know is that the temperature in the
> > beam is very less of
> > the order of micro kelvin and this increases the
> > resolution.
> > If any of you know more advantages then please send.
> >
> > Looking forward to see the reply.
> >
> > Kind regards,
> > Vandana
> >
> >
> >  Vandana Sharma
> >  Room Number: E-203,
> >  PRL Residences,
> >  Physical Research Laboratory,
> >  Navrangpura,
> >  Ahmedabad- 380 009
> >  Gujarat, India
> >  Email: vandanas@...
> >  Phone No : (91)-079-6300505(hostel)
> >           : (91)-079-6308550-Ext-4570/4567(lab)
> >
> >
> >
> >
> > ------------------------ Yahoo! Groups Sponsor
> >
> >
> > Yahoo! Groups Links
> >
> >
> >      spectroscopy-unsubscribe@yahoogroups.com
> >
> >
> >
>
>
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>

Reply | Forward | Messages in this Topic (3)
#234 From: Sergey Egorov <s_egorov@...>
Date: Fri Feb 20, 2004 6:24 pm
Subject: Re: Doubt...... 		s_egorov
Offline Offline
Send Email Send Email
  
other advantages include

a) higher concentration of atoms/molecules
b) opportunity to obtain new molecular objects like
clusters
c)opportunity to make time-of-flight measurements,
like TOF MS studies.

Regards,

Sergey Egorov,
Del Mar Ventures
4119 Twilight Ridge
San Diego, CA 92130
tel +1 (858) 755-6727
fax +1 (858) 630-2376
delmar@...
http://www.sciner.com/
http://www.femtosecondsystems.com/

--- Vandana Sharma <vandanas@...> wrote:
> Dear all,
> What are advantages of doing experiments with
> supersonic beam? Why it is
> more superior than the gas cell experiments?
> One advantage I know is that the temperature in the
> beam is very less of
> the order of micro kelvin and this increases the
> resolution.
> If any of you know more advantages then please send.
>
> Looking forward to see the reply.
>
> Kind regards,
> Vandana
>
>
>  Vandana Sharma
>  Room Number: E-203,
>  PRL Residences,
>  Physical Research Laboratory,
>  Navrangpura,
>  Ahmedabad- 380 009
>  Gujarat, India
>  Email: vandanas@...
>  Phone No : (91)-079-6300505(hostel)
>           : (91)-079-6308550-Ext-4570/4567(lab)
>
>
>
>
> ------------------------ Yahoo! Groups Sponsor
>
>
> Yahoo! Groups Links
>
>
>      spectroscopy-unsubscribe@yahoogroups.com
>
>
>


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Reply | Forward | Messages in this Topic (3)
#233 From: Vandana Sharma <vandanas@...>
Date: Thu Feb 19, 2004 11:44 am
Subject: Doubt...... 		vandypph
Offline Offline
Send Email Send Email
  
Dear all,
What are advantages of doing experiments with supersonic beam? Why it is
more superior than the gas cell experiments?
One advantage I know is that the temperature in the beam is very less of
the order of micro kelvin and this increases the resolution.
If any of you know more advantages then please send.

Looking forward to see the reply.

Kind regards,
Vandana


  Vandana Sharma
  Room Number: E-203,
  PRL Residences,
  Physical Research Laboratory,
  Navrangpura,
  Ahmedabad- 380 009
  Gujarat, India
  Email: vandanas@...
  Phone No : (91)-079-6300505(hostel)
           : (91)-079-6308550-Ext-4570/4567(lab)

Reply | Forward | Messages in this Topic (3)
#232 From: "leonital6" <leonital6@...>
Date: Wed Jan 21, 2004 5:40 pm
Subject: Spectroscope design 		leonital6
Offline Offline
Send Email Send Email
  
[This is the second time I send this post, the firt one is lost.]

Maybe this yahoo group is more fit than sci.techniques.spectroscopy
for me. I'm writing a small science fiction novel, and I'd like to
design an intelligent ("sentient") alien with a spectroscopic sense
in their insect-like antennae (the antennae are short cylinders 5 cm
long, 2-3 cm diameter), and maybe you can suggest me a good design
for such spectroscope.

Using chitin-like materials it's easy to make small lenses,
diffraction gratings (and even rough mirrors, alternating many thin
layers of air and chitin). Inside the antennae there's small space,
and the weight have to be low (diffraction gratings are lighter than
a solid prism).

I think that such spectroscope can be static or dynamic. For the
static design there can be a whole line of photoreceptors (tuned to
different frequencies), or even more than one. For the dynamic design
there is a single small round spot of photoreceptors (tuned for a
wide range of frequencies) and something have to move to show
different light frequencies to the sensor. The dynamic design is
slower, more complex and it requires a neural memory, but maybe it
can be made smaller.

The operation range can be from red to UV (I don't know if chitin-
like materials are transparent in IRs too).

Some questions:
Which is the best design for such antennae (single prism, 3
alternated prisms, a diffraction grating, Echelle, etc)?
How big is it?
How many frequency bands? (25? 200?)
Sensitivity?
Final use: can such spectroscope be used to recognise materials far
away? Other possible uses into a wild environment or into a "tech"
one?

If you are interested, I can write (and ask) something about how such
aliens can communicate such spectra each other (using voice or other
channel).
Thank you,
leonard

Reply | Forward | Messages in this Topic (2)
#231 From: leonard - <leonital6@...>
Date: Tue Jan 20, 2004 6:43 pm
Subject: Spectroscope design 		leonital6
Offline Offline
Send Email Send Email
  
Maybe this yahoo group is more fit than
sci.techniques.spectroscopy for me. I'm writing a
small science fiction novel, and I'd like to design an
intelligent ("sentient") alien with a spectroscopic
sense in their insect-like antennae (the antennae are
short cylinders 5 cm long, 2-3 cm diameter), and maybe
you can suggest me a good design for such
spectroscope.

Using chitin-like materials it's easy to make small
lenses, diffraction gratings (and even rough mirrors,
alternating many thin layers of air and chitin).
Inside the antennae there's small space, and the
weight have to be low (diffraction gratings are
lighter than a solid prism).

I think that such spectroscope can be static or
dynamic. For the static design there can be a whole
line of photoreceptors (tuned to different
frequencies), or even more than one. For the dynamic
design there is a single small round spot of
photoreceptors (tuned for a wide range of frequencies)
and something have to move to show different light
frequencies to the sensor. The dynamic design is
slower, more complex and it requires a neural memory,
but maybe it can be made smaller.

The operation range can be from red to UV (I don't
know if chitin-like materials are transparent in IRs
too).

Some questions:
Which is the best design for such antennae (single
prism, 3 alternated prisms, a diffraction grating,
Echelle, etc)?
How big is it?
How many frequency bands? (25? 200?)
Sensitivity?
Final use: can such spectroscope be used to recognise
materials far away? Other possible uses into a wild
environment or into a "tech" one?

If you are interested, I can write (and ask) something
about how such aliens can communicate such spectra
each other (using voice or other channel).

Thank you,
leonard

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Yahoo! Hotjobs: Enter the "Signing Bonus" Sweepstakes
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Reply | Forward | Messages in this Topic (2)
#230 From: myl samy <smyls2003@...>
Date: Tue Jan 20, 2004 4:02 am
Subject: spectroscopy-doubt!! 		smyls2003
Offline Offline
Send Email Send Email
 
Dear all
 
Kindly give Proton NMR signals for Ethanol and acidified Ethanol with reason.
 
Thank u all
 
by
 
Shanker Myl
TamilNadu
India

Yahoo! India Mobile: Ringtones, Wallpapers, Picture Messages and more. Download now.


Reply | Forward | Messages in this Topic (1)
#229 From: "tisafire" <jsg918@...>
Date: Fri Jan 16, 2004 2:52 pm
Subject: Re: Doubt!! 		tisafire
Offline Offline
Send Email Send Email
  
Greetings!

Multiple ionization with a single photon...I don't know the answer
necessarily to that, but I wondered if you were possibly referring
to multiple ionization with a single pulse of light, through multi-
photon ionization mechanisms?  In that case, a sufficient photon
flux can easily cause an atom or molecule to free more than one
electron.  The Ti:Sapphire laser in my lab, when focused, can ionize
atmospheric nitrogen through a 10-photon ionization mechanism, and
higher output powers could conceivably multiply-ionize nitrogen or
Argon.

This may not be what you were referring to, but I wanted to throw in
my two cents.

Jesse
Spectroscopy Group Moderator

--- In spectroscopy@yahoogroups.com, Vandana Sharma <vandanas@p...>
wrote:
>
> Dear All,
>
> I have a very small question.
>
> How does multiple ionisation occur by a single photon?
> Means if suppose a photon is intracting with a gas say Argon, then
how
> Ar(+2 or +3 or +4 or +5...) forms?
>
> Thanks in advance.
>
> Wish you all a very happy new year.
>
> Kind regards,
> Vandana Sharma
>
>
>  Vandana Sharma
>  Room Number: E-203,
>  PRL Residences,
>  Physical Research Laboratory,
>  Navrangpura,
>  Ahmedabad- 380 009
>  Gujarat, India
>  Email: vandanas@p...
>  Phone No : (91)-079-6300505(hostel)
>           : (91)-079-6308550-Ext-4570/4567(lab)

Reply | Forward | Messages in this Topic (2)
#228 From: Vandana Sharma <vandanas@...>
Date: Tue Jan 13, 2004 5:09 pm
Subject: Doubt!! 		vandypph
Offline Offline
Send Email Send Email
  
Dear All,

I have a very small question.

How does multiple ionisation occur by a single photon?
Means if suppose a photon is intracting with a gas say Argon, then how
Ar(+2 or +3 or +4 or +5...) forms?

Thanks in advance.

Wish you all a very happy new year.

Kind regards,
Vandana Sharma


  Vandana Sharma
  Room Number: E-203,
  PRL Residences,
  Physical Research Laboratory,
  Navrangpura,
  Ahmedabad- 380 009
  Gujarat, India
  Email: vandanas@...
  Phone No : (91)-079-6300505(hostel)
           : (91)-079-6308550-Ext-4570/4567(lab)

Reply | Forward | Messages in this Topic (2)
#227 From: "vlzaitsev" <vlzaitsev@...>
Date: Fri Jan 16, 2004 7:45 am
Subject: HEN 2004 		vlzaitsev
Offline Offline
Send Email Send Email
  
Dear Colleague,
On behalf of the HEN 2004 Organizing Committee, I would like to
invite you to the 6th International Conference " Human Ecology and
Nature" (HEN 2004), which will be held in Moscow and Ples, Russia in
July 5-11, 2004.
Therefore, I am sending you the respective Announcement & Call for
Papers
I would also like you to consider the possibility of organizing an
invited section related to a topic of your research interest within
the main
Conference Symposiums by collecting and reviewing the papers.
Please send the proposed section title to the Organizing Committee
and start collecting the papers, which after your approval will form
the Section.

If you need a detailed Call for Papers, don't hesitate in asking us
for it.

Could you deliver the Call for Papers to those who
may be interested.

Prof. Vladimir V. Zaitsev
HEN 2004 Chairman


Announcement
& Call for Papers

HUMANITARIAN-ECOLOGICAL INSTITUTE
&
STATE UNITARY FIRM – MOSCOW SCIENTIFIC
AND INDUSTRIAL ASSOCIATION "RADON"
Organize the 6th International  Conference
"HUMAN ECOLOGY AND NATURE" ,  Moscow-Ples, Russia, July 5-11,  2004.




In 1998, the 1st International Scientific Conference "Human ecology
and nature" has been organized jointly by the Ivanovo State
University and  the Ecological Committee of the Ivanovo region. By
the results of the Conference, the program and the conference
proceedings were published.
According to the accepted decision, in 1999 the All-Russian
Scientific Conference "Molecular physics of nonequilibrium systems"
supported by the Russian Foundation for Basic Research was held.
Above 200 participants took part in the All-Russian Conferences in
2000-2001, and more than 200 presentations were represented. 284 and
328 page volumes of the Conference proceedings were published to the
beginning of the work of the Conferences. Participation in the last
All-Russian conference of scientists from India, the USA and other
countries made it possible to take a decision about a transformation
of the Conference and giving to it an international status with the
considerable extension of conference objectives.
The decision of the Conference-2002 also extended scientific
objectives, in connection with the hottest topic of works on
radioactive waste handling. Beginning from 2000, the Symposium – the
International Conference "Human ecology and nature" was indispensable
part of the Conferences.
Organization committee welcomes the participation in the Conference
work not only experts, but also graduate, postgraduate and Dr.Sc.
students.

The purposes of  the International Conference  "Human ecology and
nature" are: exchange of scientific information; detection of key
scientific problems and paths of their solution; support in training
of experts, postgraduate and Dr.Sc. students.
INTERNATIONAL ORGANIZING COMMITTEE

- Anatoliy V. Pikalov (Co-Chairman)- Ph.D., Prof., Russia;
- Igor A. Sobolev (Co-Chairman) – Dr.Sc., Prof., Russia;
- Rudolf M. Aleksakhin (Co-Chairman)– Dr.Sc., Prof.,
Academician of RAAS, Russia;
- Sergey A. Dmitriev – Dr.Sc., Prof., Russia;
- Bilqees Bano – Ph.D., Department of Biochemistry AMU, India;
- Natalie V. Gzhibovskaya  – Dr.Sc., Prof., Latvia;
- Ludmila E. Pikalova – Ph.D., Prof., Russia;
- Aleksey K. Rebrov  – Dr.Sc., Prof., Academician of RAS,
Russia;
- Aleksey M. Kutepov – Dr.Sc., Prof., Academician of RAS,
Russia;
- Valeriy V. Lunin– Dr.Sc., Prof., Academician of RAS, Russia;
- Aleksandr M. Chekmarev – Dr.Sc., Prof., Corresponding Member
of RAS, Russia;
- Oleg G. Polsky – Ph.D., Russia;
- Pankaj Vadgama -  Ph.D., Prof. of London University, UK;
- Tide Hainz – Ph.D., Prof., Germany;
- Arkady D. Ursul -  Dr.Sc., Professor, Academician of AS of
Moldova.

    ORGANIZING COMMITTEE

- Vladimir V. Zaitsev (Chairman) - Dr.Sc., Prof.;
- Mikhail B. Dobriyan - Dr.Sc., Prof.;
- Yuri I. Bobkov – Dr.Sc., Prof.;
- Andreyan N. Osipov (Scientific Secretary) – Ph.D.;
- Aleksandr N. Kamnev – Dr.Sc., Prof.;
- Leonid A. Shelepin – Dr.Sc., Prof.;
- Andrey L. Vinnik - Dr.Sc., Prof., Academician of RAMS;
- Yuli I. Drobyshev – Ph.D.;
- Larisa T. Poddubnaya - Ph.D.;
- Sergey A. Seleznev – Dr.Sc., Prof.;
- Andrey I. Sobolev - Dr.Sc., Prof.;
- Sergey V. Stefanovsky  - Dr.Sc., Prof.;
- Nadezhda V. Usol'tseva - Dr.Sc., Prof.;
- Aleksandr V. Ochkin - Dr.Sc., Prof.;
- Vladimir N. Matveyenko – Dr.Sc., Prof.;
- Tatiana V. Pavlova – Ph.D., Associate Prof.;
- Natalie V. Perelovich;
- Nadezhda N. Bylova;
- Tatiana V. Prilutskaya.

SCIENTIFIC PROGRAM: TOPICS

Symposium I   "General  ecology»
Chairpersons:
Aleksey M. Kutepov, Dr.Sc., Professor, Academician of RAS;
Arkady D. Ursul,  Dr.Sc., Professor, Academician of AS of Moldova.

Symposium II  "Molecular chemistry, physics and biology of
heterogeneous systems in ecology"
Chairpersons:
Valeriy V. Lunin, Dr.Sc., Prof., Academician of RAS, Russia;
Igor A. Sobolev, Dr.Sc., Prof., Russia.

Symposium III  "Information problems of ecology"
Chairpersons:
Aleksey K. Rebrov  – Dr.Sc., Prof., Academician of RAS, Russia;
Andrey I. Sobolev - Dr.Sc., Prof.

           Symposium IV  "Radiobiology and Radioecology"
Chairpersons:
Rudolf M. Aleksakhin,  Dr.Sc., Prof., Academician of RAAS;
Oleg G. Polsky, Ph.D.


The program will be refined by the organizing committee  after
receiving contributions and preparation of papers for press.


INSTRUCTIONS FOR PAPER SUBMISSION

1. Papers must contain the clear description of conception, aim,
scientific value and results of study. The size of the manuscript
should not exceed 5 printed pages.
2. Authors are requested to follow the manuscript style guidelines
presented below.
· The text and figures should fit on one side of A4 paper (210
mm υ                297 mm) with margins (left -25 mm, right - 15 mm,
top - 17 mm, and bottom - 20 mm) using MS Word. Use Times New Roman
12 point fonts, typed single-spaced.
· Beginning at the left margin, type as follows:
- THE NAMES OF THE AUTHORS WITH CAPITAL LETTERS,
- their institutional affiliation, address and  E-mail,
- leave one blank line,
- THE TITLE WITH BOLD CAPITAL LETTERS, CENTRED,  WITHOUT A
POINT AT THE END,
- leave one blank line before the text of the manuscript.
· If two and more authors are from the same  institution, their
names should  be typed in one line through comma. If authors work in
different ones, their  names should be typed in different lines, and
their institutional affiliation and address should be printed under
the names  in a new line (see an example).
· Figures and tables should be placed into the text after
paragraph contained reference on them. table The table title types
above the table. The figure legend types under the figure.
· All publications cited in the text should be presented in a
list of references following the text of the manuscript. In the text
refer to the reference number in square brackets according to the
reference list.
Papers not complying with these instructions will be rejected.
3. Authors are requested to submit their manuscript to the organizing
committee by post (two original copies with the authors signatures on
one of them) or by e-mail as an attached file in MS Word.
Paper style example:

ANDREW M. YAKOVLEV
Crystallography Institute of RAS,  Moscow
HENRY S. MORGAN, ZEYNEB ZAAHAN
Casablanca State University, Casablanca, Marocco
E-mail: human-ecology@...

ELECTRICAL PROPERTIES OF ZnP2  SINGLE CRYSTALS OF TETRAGONAL AND
MONOCLINIC MODIFICATIONS

Measurements are made of the electrical properties of both
modifications of ZnP2 crystals, which are doped, undoped and annealed
vacuum and in vapor of the components. The measurements are carried
out in the temperature range from 190 to 380K. The donor centers7 are
found to be vacancies of phosphor. The dominating scattering
mechanism [1]............…………………………………………………...

References:
1. Clark N.A. // Mol. Cryst. Lig. 1983. V. 94. # 1. P. 1&#64979;30.

REGISTRATION AND PARTICIPATION

Participants are requested to submit their papers accompanied by the
presenting author registration data:




HUMANITARIAN-ECOLOGICAL INSTITUTE
&
STATE UNITARY FIRM – MOSCOW SCIENTIFIC
AND INDUSTRIAL ASSOCIATION "RADON"
organize
the 6th International  Conference
"HUMAN ECOLOGY AND NATURE"



  Moscow-Ples
Russia
July 5-11,  2004


1. Full name,
2. Rank and title,
3. The both home and affiliation addresses, phones and
     e-mail.
to the organizing committee via post or e-mail
not later then  May 15,  2004.

Address of the organizing committee:
Vladimir V. Zaitsev, Dr.Sc., Prof.
2/14, 7th Rostovsky lane, Moscow 119121, Russia
Phone:  + 7 (095) 4855879
Fax: + 7(095) 4855879
E-mail: mocconfere@... for papers in Russian;
              mocconf@...  for papers in English.

Registration Fees:
The registration fee is RUB 3000 (US $ 100) per participant. This
amount will cover welcome reception, conference dinner, refreshments
during breaks, social program and the book of the conference
proceedings.  The payment must be made in cash in connection with the
registration on the first day of the conference.

Accommodation:
Participants will be hosted in hotels with maximum price up to 50 USD
per night.

Presentations:
Time of  an oral presentation is 10-15 minutes. Presentation should
include: task; methods; main body (basic results) and conclusion.
Overhead projector will be available at the conference.

Official languages of the Conference are
Russian and English.

Reply | Forward | Messages in this Topic (1)
#226 From: "Monica and Mike Newlands" <mnewlands@...>
Date: Mon Dec 22, 2003 1:46 pm
Subject: Re: organic chem...mass spectra and NMR 		mnewlands@...
Send Email Send Email
  
Joseph,
         There are many ways to approach these problems. In this case the
mass spectrum provides the first clue, assuming that 136/138 represents the
parent ion M+.
Two peaks of equal intensity differing by two amu suggests the presence of
a bromine atom, isotopes with amu 79 and 81.
         Subtracting 79 from 136 leaves 57 which is probably C4H9. The same
result comes from subtracting 81 from 138.
         Turning to the HNMR, the peak at 1.0 corresponds to  two methyl
groups coupled to a CH group. The doublet at 3.3 suggests CH2, coupled to
the same CH. The CH peak is a multiplet because it is coupled to the 2
methyl groups AND the CH2 group.
         So the compound is Me2CHCH2Br -- sorry I cannot put in the
subscripts with this simple mail program.

                         Mike Newlands
                     (Professor of Chemistry, retired)
----- Original Message -----
From: "josephcasamassima" <josephcasamassima@...>
To: <spectroscopy@yahoogroups.com>
Sent: Sunday, December 21, 2003 1:28 AM
Subject: [spectroscopy] organic chem...mass spectra and NMR


> i don't know how many organic chemists we have here, but my question
> is in regards to combination problems containing the HNMR and the
> mass spectrascopy. how should one attempt to figure out the
> moleculaformula of the compound so that the complete structure may
> be found. for example given HNMR sets :3.3 (2h,doublet), 2.0(1H,
> maltiplet), 1,0 (6H, doublet) mass spectra: two peaks with a 1:1
> ratio, 136 and 138. in writing this out, i realize that maybe in
> these types of problems it's not necessary to have the empirical
> formula. but regardless, what's the best way to approach these
> problems? any help would be appreciated.
>
>                 cheers,
>                   joseph casamassima
>
>
>
>
>
>
> Yahoo! Groups Links
>
> To visit your group on the web, go to:
>  http://groups.yahoo.com/group/spectroscopy/
>
> To unsubscribe from this group, send an email to:
>  spectroscopy-unsubscribe@yahoogroups.com
>
> Your use of Yahoo! Groups is subject to:
>  http://docs.yahoo.com/info/terms/
>
>

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