22,321 Works

Sepsis and septic shock: survivorship and the longer-term health and economic implications of hydrocortisone treatment

Kelly Thompson
Sepsis is life threatening organ failure due to a dysregulated host response to infection. It is a leading cause of death and disability worldwide. Priorities of management include early detection and treatment with appropriate antimicrobials, along with organ support therapies administered in the intensive care unit (ICU). Corticosteroids are an adjunctive therapy used to treat patients with septic shock. They modulate the immune and cardiovascular response to infection, reducing the duration of mechanical ventilation and...

An investigation of the fungal endophyte Ascomycete sp. F53 and its biosynthetic potential

Jesse Cain
Natural products have contributed to many medicines that we use in everyday life, and fungal endophytes are known to be avid producers of these compounds. Natural products can be produced by megasynthases called polyketide synthases (PKS) that are encoded by large gene clusters within endophyte genomes. As many of these PKSs simply do not express natively or they produce their products in insufficient quantities it is beneficial to express their biosynthetic genes in more labile...

The treatment by reverse osmosis of solutions containing both inorganic and organic solutes

Michael Clifton
The use of reverse osmosis in the treatment of solutions containing a single solute has been the subject of a great deal of research, but very little attention has been given to the question of whether the equations developed to describe the behaviour of single-solute solutions may be applied to solutions containing more than one solute. The present work was aimed at testing the suitability of previously derived transport equations when the solution to be...

A model investigation for the control works of a floodway

E. M. O'Loughlin

Hydraulic design of IEA wastewater treatment plant decant systems

Grant Michael Witheridge
This report describes an investigation into the mechanisms responsible for sludge carry-over during decant from an intermittent aeration tank. Several mechanisms were identified which may cause sludge carry-over. An 'early failure' mode may occur during the transient phase at the start of decant. This failure mode can be avoided by gradually increasing the rate of decant to a final steady value. The time required for flow establishment is in the order of five minutes in...

Condition monitoring of gears using transmission error

Jacky Chin
Condition monitoring is crucial for safe and economic machine operations. Although vibration dominates gear condition monitoring and has been undeniably proven successful in early fault detection, its effectiveness in fault severity assessment is still debated. Disadvantages of vibration in such applications include remoteness from the gears, a complex transfer path, insensitivity to average wear, masking by other sources, and strong dependence on operating conditions. Solutions are available, but usually require complex gear models and/or large...

Temperature changes within the boundary layer

D. R. Longley

Stability of armour units against breaking waves

A. D. Gordon

Frictional resistance characteristics of some N.S.W. tidal inlets

M. S. Tooker

Design wave characteristics for tropical cyclones in the Australian region

R. C. Nelson

Model for moving hydraulic jump

Samuel Asante Opoku

A hydrogeophysical study of the M2B aquifer at the Loy Yang mine Victoria Australia

Christopher Daniels

Wave transformation in the surf zone

Barry LePlastrier

Estimation of discharge in compound channels.

Nguyen Chi Cong

Leachate generation at waste landfills in Bangkok and Sydney

Seksan Yodseang
The aim of this thesis is to discuss leachate generation at waste landfills. The cases studied are a closed or complete sanitary landfill at Lucas Heights in Sydney, and an open dump solid waste disposal site at On-Nooch in Bangkok. The generation of leachate from landfills is an important environmental problem. Infiltrated precipitation percolates through municipal solid wastes or industrial wastes, causing water to become heavily polluted with organic and inorganic matter. Effective pollution control...

A model simulation of beach development under wave action

D. C. Malone

Behaviour of a plume in a cross flow

D. L. Watts

The role of polyelectrolytes in water treatment.

G. Lewis
This report is a broad based overview of the role and importance of polyelectrolytes in water treatment, with an emphasis on direct filtration and, in particular, experimental pilot plant work. The definitions, chemical and physical natures of organic synthetic and natural polyelectrolytes are described. Their advantages and disadvantages for use in water treatment are detailed, together with a brief description of the manufacturing processes by which the various different polymers are synthesised. The unit operations...

Heat transfer in stratified flow.

G. E. Pleasance
When water is drawn from a cooling pond, heated by some industrial process and discharged "back into the pond to dissipate its heat load to the atmosphere an orderly motion is generated within the pond. This motion and the subsequent heat transfer from the surface of the pond is governed by the inlet Densimetric Proude Number, the inlet Reynolds Number, and the rate of heat transfer from the surface. In this dissertation, a two-dimensional cooling...

Non darcy flow of groundwater.

Colin R. Dudgeon

Learning Autonomous Flight Controllers with Spiking Neural Networks

Huanneng Qiu
The ability of a robot to adapt in-mission to achieve an assigned goal is highly desirable. This thesis project places an emphasis on employing learning-based intelligent control methodologies to the development and implementation of an autonomous unmanned aerial vehicle (UAV). Flight control is carried out by evolving spiking neural networks (SNNs) with Hebbian plasticity. The proposed implementation is capable of learning and self-adaptation to model variations and uncertainties when the controller learned in simulation is...

Privacy-Preserving Biometric Authentication

Quang Tran
Biometric-based authentication provides a highly accurate means of authentication without requiring the user to memorize or possess anything. However, there are three disadvantages to the use of biometrics in authentication; any compromise is permanent as it is impossible to revoke biometrics; there are significant privacy concerns with the loss of biometric data; and humans possess only a limited number of biometrics, which limits how many services can use or reuse the same form of authentication....

Registration Year

  • 2022
    22,321

Resource Types

  • Dissertation
    22,321

Affiliations

  • UNSW Sydney
    22,321