• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 96
  • 21
  • 19
  • 14
  • 8
  • 5
  • 4
  • 1
  • 1
  • 1
  • 1
  • Tagged with
  • 241
  • 241
  • 82
  • 73
  • 65
  • 45
  • 33
  • 28
  • 27
  • 26
  • 26
  • 24
  • 22
  • 22
  • 18
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Laser spectroscopy of molecular ions in an Ion Cyclotron Resonance apparatus

Ashman, A. S. January 1988 (has links)
No description available.
12

Gas phase oxidation of iso-butylene over bismuth molybdate based catalysts

Benyahia, F. January 1985 (has links)
No description available.
13

Studies of time-resolved F.T.I.R. emission

Brownsword, Richard A. January 1993 (has links)
No description available.
14

A mass spectrometric study of translational energy release in the reactions of gas phase cations

Mahdi, A. M. January 1987 (has links)
No description available.
15

Photochemistry of Chloropentafluoroacetone

Samant, Hari 12 1900 (has links)
<p> When chloropentafluoroacetone in the gas phase at room temperature is electronically excited in the ultraviolet region, emission is observed. This emission is assigned to a transition from the 1 (n,π*) state. Deactivation of the vibrationally excited singlet state can occur when the ketone is excited at short wavelengths. The internal heavy atom effect on both radiative and radiationless transitions from the excited singlet state is relatively small. The quenching of the chloroketone molecules in the zeroth vibrational level of the excited singlet state has been studied and the probable quenching mechanisms proposed. Intersystem crossing from the excited singlet state to the triplet state is an important process in the gas phase at room temperature. However, phosphorescence is observed only in matrices at low temperatures, e.g. 77°K. The internal heavy atom effect on radiative and radiationless transitions from the triplet state in the matrix at low temperature is small. </p> / Thesis / Doctor of Philosophy (PhD)
16

Diode laser infrared spectroscopy of jet-cooled polyatomic molecules

Hansford, Graeme Mark January 1994 (has links)
No description available.
17

Measurement of atmospheric trace gases by absorption spectroscopy

Aliwell, Simon Richard January 1995 (has links)
No description available.
18

Gas Phase Structures and Molecular Constants Of a Hydrogen Bonded Dimer and an Inorganic Molecule Determined Using Microwave Spectroscopy

Mitchell, Erik Gordon January 2012 (has links)
Pulsed-beam Fourier transform microwave spectroscopy (PBFTMS) was used to determine the rotational structure of N-hydroxypyridine-2(1H)-thione. PBFTMS was also used to determine the rotational structure of a hydrogen dimer between propiolic acid and formic acid. Rotational constants and quadrupole coupling constants were determined. Calculations (MP2/DFT) were utilized in predicting the isotopic structures. Isotopic data (D, and ¹³C) and normal isotopomers collected were used in establishing of key structural parameters such as bond length and bond angles.
19

Studies of refractory clusters produced from a pulsed arc source

Barran, Perdita Elizabeth January 1998 (has links)
No description available.
20

A study of several reactions relevant to atmospheric ozone chemistry

Hickson, Kevin Michael January 2000 (has links)
No description available.

Page generated in 0.0481 seconds