• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 28
  • 23
  • 5
  • 2
  • 1
  • 1
  • 1
  • 1
  • 1
  • Tagged with
  • 72
  • 72
  • 26
  • 25
  • 21
  • 12
  • 10
  • 8
  • 8
  • 8
  • 8
  • 8
  • 7
  • 7
  • 7
  • 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.
1

Exciplex tuning and optical memory studies for dicyanoargentate(i) and dicyanoaurate(1) ions doped in potassium chloride crystals. extension to mixed metal gold and silver systems /

Hettiarachchi, Samanthika Ruvinie, January 2002 (has links) (PDF)
Thesis (Ph. D.) in Chemistry--University of Maine, 2002. / Includes vita. Includes bibliographical references (leaves 199-209).
2

Exciplex Tuning and Optical Memory Studies for Dicyanoargentate(1) and Dicyanoaurate(1) Ions Doped in Potassium Chloride Crystals Extension to Mixed Metal Gold and Silver Systems

Hettiarachchi, Samanthika Ruvinie January 2002 (has links) (PDF)
No description available.
3

Some measurements of the conductivities of dilute potassium chloride solutions

Faure, Abraham January 1954 (has links)
A constant temperature room has been constructed in which the thermoregulator is controlled by a temperature-sensitive resistance. A thermostat has been constructed in which the 0 temperature is controlled to within 0.001°C. A precision conductance bridge has been built in a very convenient form. Improvements include the replacement of the telephone as null detector by a cathode ray oscilloscope, and the use of a resistance-capacity phase-shift oscillator, which gives a good wave-form. An automatic recycling conductance water still has been built which regularly gives water with a conductivity less than 0.09 micromhos per cm. The conductivities of dilute KCl solutions have been measured, taking special care to prevent errors due to the adsorption of KCl on the surface of glass. Two cells were used for these measurements : a modified Jones cell, and a special conductimetric titration cell. The modified Jones cell has given results in good agreement with the generally-accepted values. The results of the conductimetric titration cell do not agree well with the generally-accepted values; the greatest difference (for the most dilute solution) is 0.4%. The reason for this is not known.
4

The effect of foliar applied fertilisers on leaf diseases of cereals

Cook, John William January 1998 (has links)
The effects of foliar applied urea and potassium chloride on the severity of leaf diseases of cereals were investigated in the laboratory, glasshouse and field between 1992 and 1995. Field studies with urea gave inconsistent results with respect to severity of Erysiphe graminis and consistently increased the leaf area affected by Septaria tritici. However, potassium chloride applied as a foliar spray consistently decreased the leaf area of wheat affected by E. graminis and S. trifid compared with equivalent applications of soil applied fertiliser. Disease control was achieved at early stem extension and after flag leaf emergence but yield responses were not detected. Laboratory investigations were undertaken to determine the mechanism by which foliar applied potassium chloride reduced the leaf area affected by E. graminis. The timing of application, within seven days pre or post inoculation, had no consistent effect on the efficacy of the fertiliser. Investigations using polyethylene glycol as a control showed that the percentage leaf area affected declined linearly as the osmotic potential of the solutions were increased. Light microscopy revealed that the germination of spores in solution and on treated leaves was reduced as the osmotic potential of the solutions were increased. Spores which did germinate developed normally but those on leaves treated with solutions of high osmotic potential rarely formed haustoria. This suggested a second mechanism acting inside the leaf. Multiple regression analysis of experimental data indicated that the inhibition of spore germination was the major response reducing the area of the leaf affected. Although the data were not conclusive it appeared that the increase in leaf water potential, following the foliar application of potassium chloride, was involved in the control of E. graminis.
5

EXPERIMENTAL AND THEORETICAL STUDY OF POTASSIUM-CHLORIDE CRYSTAL SIZE DISTRIBUTION DYNAMICS AND CONTROL IN A CLASSIFIED CRYSTALLIZER WITH FINES DESTRUCTION

Beckman, James Richard, 1943- January 1976 (has links)
No description available.
6

Nucleation kinetics of the potassium chloride-water system with predictions of crystal-size distributions in crystallizers of complex configuration

Metchis, Steven Geoffrey, 1951- January 1974 (has links)
No description available.
7

The heat of dilution of potassium chloride in aqueous urea solutions ...

Gall, John Frederick, January 1941 (has links)
Thesis (Ph. D.)--University of Chicago, 1939. / Lithoprinted. Includes bibliographical references.
8

Dielectric constant studies

Malone, John Gilbert, Ferguson, Alfred Lynn, Case, Lee O. January 1900 (has links)
Thesis (Ph. D.)--University of Michigan, 1933. / By J. Gilbert Malone, A.L. Ferguson and L.O. Case. From the Journal of chemical physics, v. 1, December, 1933.
9

The heat of dilution of potassium chloride in aqueous urea solutions ...

Gall, John Frederick, January 1941 (has links)
Thesis (Ph. D.)--University of Chicago, 1939. / Lithoprinted. Description based on print version record. Includes bibliographical references.
10

The hydrolysis of cane sugar by invertase in the presence of potassium chloride ...

Washburn, Martha Lucile. January 1926 (has links)
Thesis (Ph. D.)--Columbia University, 1926. / Vita. Bibliography: p. [47].

Page generated in 0.0688 seconds