Browsing School of Chemistry and Physics by Title
Now showing items 314-333 of 700
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L and R mode electromagnetic instabilities in space plasmas having kappa velocity distributions.
(2014)Abstract available in PDF file. -
Laser applications and refractive properties of non-homogeneous gas distributions.
(1995)No abstract available. -
Layered double hydroxides : synthesis and application in gene delivery to mammalian cells in culture.
(2010)Layered double hydroxides (LDHs) or hydrotalcite-like compounds (HTLcs) are classified as anionic clays in which their structure is based upon brucite and are represented by the following general chemical formula: [MII1-xMIII ... -
Linear and nonlinear electron-acoustic waves in plasmas with two electron components.
(1991)Measurements of broadband electrostatic wave emIssons in conjunction with particle distributions in the earth's magnetosphere, have provided motivation for a number of studies of waves in plasmas with two electron components. ... -
Linear and nonlinear fluctuations in electron-positron plasmas.
(2009)The behaviour of both small amplitude and arbitrary amplitude nonlinear electrostatic fluctuations are studied in electron-positron plasmas. The propagation characteristics of associated linear modes are also examined ... -
Linear and nonlinear fluctuations in multicomponent plasmas applied to magnetospheric environments.
(2015)In this thesis, we discussed the linear and nonlinear effects in multicomponent plasmas. By multicomponent, we refer to electron-positron-ion and electron-positron-dust type plasmas. The linear electrostatic waves in ... -
Linear and nonlinear waves in space plasmas.
(2014)The work presented in this thesis is about a study of some linear and nonlinear plasma waves. Firstly, a kinetic-theoretical approach is used to study ion Bernstein waves in an electron-proton plasma with a kappa velocity ... -
Linear properties of the cross-field ion acoustic instability in a double plasma device.
(1990)This thesis deals with the dependence of the linear spatial growth rate of the cross-field ion acoustic instability on various plasma parameters. A kinetic theory model, with elastic and inelastic ion-neutral collisions ... -
The liquid-liquid extraction of Germaniun with the 7-alkylated 8- hydroxyquinoline derivative - KELEX 100.
(1990)Germanium can be extracted from aqueous solutions by KELEX 100 dissolved in an appropriate diluent. KELEX 100 is a commercially available chelating extractant containing the active constituent 7-(4ethyl-l-methyloctyl) ... -
Low frequency electrostatic instabilities in a two-dust component plasma.
(1999)The kinetic dispersion relation for a magnetized dusty plasma comprising of ions, electrons and massive, charged dust particles is solved for low frequency electrostatic instabilities in the dust plasma frequency ... -
Magnetic properties of Mg₁-xZnxFe₂O₄ nanoferrites and tetracycline-ferrite nanocomposites.
(2013)Abstract available in print copy. -
Maize (Zea mays L.) seed quality in response to simulated hail damage.
(2015)Maize (Zea mays L.) is the most important cereal grain crop produced in various environments throughout South Africa. Maize is vulnerable to hail damage because it can reduce crop yield or may result in complete yield and ... -
Mapping of magnetospheric electric fields from Cluster into ionospheric convection from SuperDARN using the Tsyganenko field model.
(2010)The data from Super Dual Auroral Radar Network (SuperDARN) radar and Cluster was used to investigate whether the processes observed by SuperDARN radar in the highlatitude ionosphere leads to the processes that take place ... -
Mass spectrometry characterisation of laser produced products.
(1999)Mass spectrometers are analytical instruments that convert neutral atoms and molecules into gaseous ions and separate those ions according to the ratio of their mass to charge, m/z. The measurement is reported as a ... -
Measure-preserving and time-reversible integration algorithms for constant temperature molecular dynamics.
(2011)This thesis concerns the formulation of integration algorithms for non-Hamiltonian molecular dynamics simulation at constant temperature. In particular, the constant temperature dynamics of the Nosé-Hoover, Nosé-Hoover ... -
Measurement and computational modelling of intermolecular interactions in fluids.
(2000)The molecular theory of the second light-scattering virial coefficient Bp describing the effects of interacting pairs of molecules on the depolarization ratio p of Rayleigh-scattered light is reviewed, both for interacting ... -
Measurement and modelling of the directional scattering of light.
(2015)The quantum nature of light suggests that a photon can interact with matter in two primary ways. Firstly and perhaps more simply, the photon could be absorbed or secondly and more complex, it could be scattered into a ... -
Measurement and validation of waterlines and surface currents using surf-zone video imaging.
(2001)The continuous monitoring of beaches and structures near, or in the surf-zone, has become a vital task from an environmental and economic standpoint. Specifically, the Durban beaches are continually nourished with sand ... -
The measurement of electric quadrupole moments of gas molecules by induced birefringence.
(1993)Determining the electric quadrupole moments of gas molecules from measurements of birefringence induced in the gas by an applied electric field gradient is widely recognised as being the most direct experimental technique ...