8,391 Works

Geometrical Segmentation of Point Cloud Data by Spectral Analysis

Sergey Alexandrov
A principal step towards solving diverse perception problems is segmentation. Many algorithms benefit from initially partitioning input point clouds into objects and their parts. In accordance with cognitive sciences, segmentation goal may be formulated as to split point clouds into locally smooth convex areas, enclosed by sharp concave boundaries. This goal is based on purely geometrical considerations and does not incorporate any constraints, or semantics, of the scene and objects being segmented, which makes it...

think - The university of the future begins today

The central theme of the 2014 Annual Report is human thinking. In an interview, University President Hartmut Ihne and 3Sat moderator Gert Scobel discuss the concept of thought: "Should we be allowed to give up our autonomy voluntarily?" Our university’s Language Centre Director James Chamberlain examines to what extent thinking varies in different languages. Professor Paul Plöger from the Department of Computer Science explains why robots have tremendous problems understanding complex relationships in open environments....

Fahrtbericht und Wissenschaftlicher Zwischenbericht der Fahrten SO 06/1 und /2 mit F.S. SONNE \"Hawaii-Tahiti-Transect\", Teilprojekt ICIME, August-Oktober 1978

Günther Friedrich

National Research Council Canada: 2014-15 departmental performance report

Also available in French: Rapport ministériel sur le rendement Conseil national de recherches Canada: 2014-2015

Äusseres Mullwitzkees - Massenhaushalt 2014/2015

Martin Stocker-Waldhuber & Andrea Fischer

Jamtalferner - Massenhaushalt 2014/2015

Andrea Fischer & Lea Hartl

Gay Community Periodic Survey: Sydney 1996-2002

Peter Hull, Paul Van de Ven, Garrett Prestage, Patrick Rawstorne, Andrew Grulich, June Crawford, Susan Kippax, Daniel Madeddu, David McGuigan & Antony Nicholas
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 Survey: Queensland 2004

Peter Hull, Paul Van de Ven, Patrick Rawstorne, Garrett Prestage, Susan Kippax, Shamus Brown, Geoffrey Harrison & Kevin Marriot
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.

The Expedition PS93.1 of the Research Vessel POLARSTERN to the Greenland Sea and the Fram Strait in 2015

Rüdiger Stein

Gove Northern Territory harbour feasibilty studies. March 1968.

P. B. Stone, D. N. Foster & R. C. Nelson
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.

Investigation of EM31 anomalies at Yarramanbah/Pump Station Creek, on the Liverpool Plains of New South Wales. April 1998.

R. I. Acworth & R. Beasley
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...

Monkey Mia: a hydrodynamic investigation. June 1998.

D. A. Luketina, I. P. King & L. M. Lyons
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.

Berowra Creek: a hydrodynamic investigation. June 1998.

D. A. Luketina, D. C. van Senden & D. Piper
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.

Mitigation of siltation in farm water storages. May 1969.

R. T. Hattersley & R. C. Nelson
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.

Hydraulics of Flow Near Wells in Unconsolidated Sediments. Report No. 126, Vol. 2. Field Studies. March 1973.

C. R. Dudgeon, P. S. Huyakorn & W. H. C. Swan
UNSW Water Research Laboratory Report No. 126, Vol 2

Groundwater and well hydraulics: an annotated bibliography. February 1972.

P. S. Huyakorn & C. R. Dudgeon
Literature divided into 15 basic categories. Closing date 1971.

Boat Wake Wash Decision Support System User's Manual. July 2013.

W C Glamore, A M Badenhop & E K Davey
UNSW Water Research Laboratory Report No. 246

The assessment of the water resources of the Territory of Papua and New Guinea. October 1964.

C. H. Munro
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.

Flood forecasting for the City of Launceston. August 1960.

D. N. Foster
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 %.

Hydraulic grade line determination in urban drainage systems. October 1997.

J. E. Ball
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 power station stacks. October 1962.

C. R. Dudgeon
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...

Finite element solution of two-regime flow towards wells. December 1973.

P. S. Huyakorn
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 porous media flow. November 1965.

K. K. Watson
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...

Seepage Control with Plastic Membranes: A Literature Surve/ and Annotated Bibliography. January 1962.

T. R. Fietz & J. R. Burton
UNSW Water Research Laboratory Report No. 52

Seepage control with plastic membranes: Part 4. Wind damage to polythene dam liners. January 1962.

J. R. Burton
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.

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