Gay Community Periodic Surveys surveys are regularly conducted in Sydney, Melbourne, Brisbane, Cairns, Canberra, Adelaide and Perth to monitor changes in sexual and other risk practices over time among Australian gay men who are gay community attached, recruited from gay sex-on-premises venues, social sites and clinics.

Gay Community Periodic Surveys surveys are regularly conducted in Sydney, Melbourne, Brisbane, Cairns, Canberra, Adelaide and Perth to monitor changes in sexual and other risk practices over time among Australian gay men who are gay community attached, recruited from gay sex-on-premises venues, social sites and clinics.

Investigations to provide design data for shipping operations on the gulf of Carpentaria at Gove.Waves due to trade winds and tropical cyclones were forecast for two possible harbour locations. The likely characteristics of seiche at one site was found unlikely to affect shipping. Current and sand movements were studied. Model studies investigated breakwater overtopping and harbour protection.

Describes the results of a detailed investigation program of the black soils of the Liverpool Plains, New South Wales, to determine the origin of high bulk electrical conductivity anomalies measured using a GEONICS EM31. Minimally disturbed core was obtained to 10m depth at four locations. Core was split into 100mm increments and tested for moisture content, cation exchange capacity, laboratory conductivity, grain size, XRD and fluid chemistry of 1:5 extracts. Field investigations involved conductivity imaging...

This report outlines the methodology and results of a RMA10 hydrodynamic model investigation funded by the Department of Conservation and Land management (W.A.) into the hydrodynamics of Monkey Mia lagoon and Shark Bay. More specifically, the model results show the dilution of a variety of neutrally buoyant pollutant releases in Monkey Mia Lagoon (Red Cliff Bay). In addition, the key processes governing the dilution are elucidated.

This report outlines the methodology for the analysis and interpretation of the results of a field investigation carried out in 1995 into the hydrodynamics of Berowra Creek, New South Wales. This investigation is centred around a three month set of data collected from May to August 1995. The data analysis is used to elucidate dominant physical processes so that models can be developed to predict flushing rates within the estuary.

Present practices for the prevention of siltation in rural storages are reviewed in this report and compared with overseas practices. An anlysis of the effectivesness of conventional silt tanks is provided based on the approximate theories for settling of granular solids in sedimentation basins. A limited gtoup of case studies was made in an endeavour to highlight significant factors for the control and prevention of siltation in rural storages as topics for further research.

UNSW Water Research Laboratory Report No. 126, Vol 2

Literature divided into 15 basic categories. Closing date 1971.

UNSW Water Research Laboratory Report No. 246

Discusses importance of hydrological data collection. Present state of data collection in Papua New Guinea., New Britain, New ireland, Bougainville and Manus. Need for a national network. Detailed plan given, togther with proposals for training the indigenous people.

Based on rainfall records at seven index stations to predict peak discharge and time of peak. The warning period for overtopping levees is approximately fifteen hours and the accuracy of the estimate plus or minus 15 %.

Describes the hydraulic theory and its applications for the analysis of Hydraulic Grade Lines in urban stormwater drainage systems. Also describes the computer software called STNET.

Wind induced oscillations of welded steel smokestacks at Ptrmont have led to local buckling and fatigue cracks near the base. Observed double-amplitudes of the tops at 200 nfeet have been 2 to three feet. The most direct means of eliminating periodic interference or "buffeting' would be to prevent the regular shedding of eddies from upstream cylinders. The fitting of spoilers to the stacks of the kind investigated by Scruton and Walsh and by Weaver. The...

The report has two parts. The first deals with the general theory, variation principles, and finite element methods for confined and unconfined flow problems. Numerical solutions for several transient and steady flow cases in graphical form. The second discusses verification of the analysis by laboratory and field investigations. Type curve methods developed for determining aquifer hydraulic coefficients are presented. Typical pumping test results are compared with the numerical solutions.

Non-continuous unsteady flow in unsaturated porous materials is defined and it is shown that time-dependent problems of this type, having varying bnoundary conditions, are represntative of many commonly occurring complex field situations. Experimental design and construction with literature review. Drainage of an initially saturated sand column to atmosphere at its base is studied from experimental and analytical viewpoint noting the hydrological characteristics of the sand fraction under dynamic conditions. Comparison of measured and computed moisture...

UNSW Water Research Laboratory Report No. 52

An exposed black polythene farm dam liner. Wind damage cumulates with fatigue caused by billowing and solar heating. Holes and tears occur. Best prevention is to bury the membrane under round gravel.

Synthetically generated records of streamflow, rainfall, and evaporation may be used in river valley simulation models as an aid to decision making. Before use, the records need to be validated by a comparison of their statistical properties with those of the historical records. A program is developed to assist in this comparison. A problem chosen as an example is described , and selective output is given to illustrate applications.

Defines the limit of embankment for proposed highway bridge crossing over river flood plain. Various lengths of embankment and heights under range of flood conditions. Embankment caused very little rise in flood stage until it penetrated a strong current which traversed the flood plain. Exact estimates of length, height and stage are given.

UNSW Water Research Laboratory Report No. 162

The sensitivity of friction factor, discharge, and energy gradient to changes in pipe roughness and diameter is discussed. Results are presented graphically on Moody and Powell pipe charts, and applied to pipe data in Australian Standard codes.

A generalised model to predict the the estimated annual economic loss in the river valley, and expected annual deviations. The effects of the detention reservoir, land use changes and flood mitigation measures are evaluated. The model may be modified easily to yield a loss estimate for any storm or flood of specified characteristics.

Two different methods of measuring turbulence: piezo electric crystal transducer for high velocities, sensitive to external vibration: transducers involving heat transfer. Disadvantages of hot film anemometer discussed, and corresponding advantages of cold tip velocity meter, of which a type is described.

Presents a procedure for estimating monthly streamflow data for a given gauging station by multiple regression analysis by using surrounding stations with longer records. This need arises when a when a gauging network has stations established or discontinued at different times, or when there are gaps in records.