Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 98 for “"Harbours"”.
-
Ecological Management Strategies for Impounded Harbours
Long-term physical, chemical and biological monitoring (May 1990 to November 1994) was conducted in order to quantify water and sediment quality changes arising from the impoundment of Sutton Harbour, Plymouth (UK). Spore tracer studies revealed that 95 % water renewal times increased from 45 h to …
-
Turbulence Modelling of Tidal Currents in Rectangular Harbours
… to the predictions of tidal flow in rectangular harbours with large and small aspect ratios, as well as to a practical case study (i.e. Rattray Island), whereas the refined 3-D model has been applied to the predictions of steady state flow in a channel, wind-induced currents in a channel, tidal …
-
Marine alien species in Western Cape harbours, South Africa: A tool for stategically focusing monitoring efforts
… from fouling assemblages in six South African harbours (St Helena Bay, Saldanha Bay, Table Bay, Hout Bay, Gansbaai and Mossel Bay) and to use the data collected to identify factors (such as vectors and other harbour characteristics and activities), that could be used by management authorities …
-
The Power of the Liminal: A Study of the Role of Harbours in Political Economies of the Bronze Age Aegean
… would have needed to politically subordinate harbours to sustain the long-distance exchange that is viewed as undergirding the palatial economy. Despite the obviously crucial role played by harbours, their role in political economies has not yet been explicitly modelled. I argue that …
-
South African Airways : state - or public enterprise?
… and controlled by the South African Railways and Harbours Administration, a division of the Ministry of Transport. This thesis, traces the administrative and organizational development of the Railways and Harbours Administration, and particularly the establishment of South African Airways, as a …
-
Early life history of snapper (Chrysophrys auratus) in northern New Zealand
… of the early life history of C. auratus in four harbours (Kaipara, Manukau, Mahurangi and Huruhi) in northern New Zealand. Histological gonad analyses showed that recruitment to the Kaipara Harbour must originate from spawning activity outside the harbour. Adult fish captured within the harbour …
-
Invisible invasion: finding Perna viridis amongst South African green mussels
… This research aimed to sample the harbours on the east coast and use a genetic approach to determine if P. viridis is in South Africa. In each of the six harbours, ten sites were chosen and all green mussels were collected. A phylogenetic analysis of the mitochondrial cytochrome c …
-
Research and model studies on range action in Table Bay Harbour, Cape Town
… Department or the South African Railways and Harbours, the Research Engineer being requested to undertake an investigation. The Research Engineer at the time, Dr. C. V. von Abo. and the author commenced the task in January, 1942, by visiting Cape Town to sample nautical and technical opinion …
-
Intergrative taxonomy and biogegraphy of ants in the genus Anoplolepis (Hymenoptera: Formicidae) in Southern Africa
… in ant assemblages of ants collected between harbours and provinces and test the effectiveness of the pitfall trapping and baiting method in sampling ants. Material from various institutions and organisations were used to conduct this study, as well as new material collected. By using a …
-
Analysis of catabolic plasmids in pseudomonas
… strains of Pseudomonas. Pseudomonas strain Mr74 harbours the single TOt plasmid pWW74, and this plasmid carries two related genes for catechol 2,3-oxygenase (C230) enzymes. One of these genes had been previously cloned on a 2.05 Kb XhoI DNA fragment to yield the recombinant plasmid pWW74-3016. …
-
John William Jagger and the South African railways, 1921-1924
… Jagger was appointed Minister of Railways and Harbours, a portfolio as dry as his personality. These factors go a long way towards explaining the generally uncontroversial nature of the material presented in this essay. Any dullness and related deficiencies are, of course, entirely the fault of …
-
The role of Cladophora glomerata as a habitat for bacterial communities and a reservoir of antibiotic resistance.
… bacterial community indicated that C. glomerata harbours a bacterial community distinct from the surrounding water, and supports the growth of fecal bacteria and bacterial taxa including the genera Clostridium and Campylobacter.
-
Repair and rehabilitation of reinforced concrete harbour structures
… into four current concrete repair contracts at harbours in the Western Cape. The works are critiqued in terms of repair philosophy and methodology, and recommendations are made for improving practice. A literature review is presented, outlining the relevant background to the chlorideinduced …
-
Musical improvisation as the place where being speaks : Heidegger, language and sources of Christian hope
… Heidegger's philosophy, it will be suggested, harbours inner trends which favour the idea of music as a central component in philosophical discourse (Chapter 4) and may be used as a starting point for a re-emergent understanding of musical improvisation as a metaphysical principle (Chapter 5). …
-
Legal mechanisms in modern port development: a critical analysis
… important changes for the law relating to harbours. To get a clear understanding of this issue, I have decided to divide this work into six parts. Whenever necessary, I shall first deal with the law and related issues within the traditional concept of a port I shall then show, with …
-
Habitat utilisation by juvenile fishes in Mhlathuze Estuary and Richards Bay Habour
… systems. This has emphasised the importance of harbours in the province for juvenile estuarine fishes, but as areas of ongoing development the future ecological value of harbours is not guaranteed. Descriptions of shallow water estuarine habitats and an assessment of their utilisation by …
-
Development of an optical fibre array fluorosensor for monitoring in the aqueous environment.
… in applications such as sediment movement in harbours, sewage effluent monitoring and water discharges from oil platforms in the North Sea. The system was found to have a detection limit of 10-9 M and 10-8 M respectively for Fluorescein and Rhodamine ‘B’. The OFAF offers an alternative and …
-
Amino acid-derived imidazolium salts: platform molecules for N-Heterocyclic carbene metal complexes and organosilica materials
… organosilane. The co-condensation technique harbours potential for the production of solid-support catalysts.
-
Investigating the physical and ecological drivers of change in a coastal ecosystem: from individual to population scale impacts.
… sediment intertidal habitats. One of the largest harbours in Europe, Poole Harbour, is used as a case study. It contains a variety of important habitats including intertidal mudflat and non-tidal saline lagoon. The two main themes of the thesis are 1) assessing the physical and ecological factors …
-
Natural Variation in Arabidopsis thaliana Growth in Response to Ambient Temperatures
… QTL ‘Temp22.2’ was also identified which harbours the candidate gene PHYTOCHROME B (PHYB). Secondly, fine-mapped ‘Environmental QTL’ were also discovered for the genotype by environment (G x E) interaction. PHYTOCHROME D (PHYD) is a candidate for a temperature-responsiveness QTL. For QTL …
Page 1 of 5