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Full-Text Articles in Social and Behavioral Sciences

Butyrate-Producing Clostridium Cluster Xiva Species Specifically Colonize Mucins In An In Vitro Gut Model, Pieter Van Den Abbeele, Clara Belzer, Margot Goossens, Michiel Kleerebezem, William M. De Vos, Olivier Thas, Rosemarie De Weirdt, Frederiek-Maarten Kerckhof, Tom Van De Wiele Jan 2013

Butyrate-Producing Clostridium Cluster Xiva Species Specifically Colonize Mucins In An In Vitro Gut Model, Pieter Van Den Abbeele, Clara Belzer, Margot Goossens, Michiel Kleerebezem, William M. De Vos, Olivier Thas, Rosemarie De Weirdt, Frederiek-Maarten Kerckhof, Tom Van De Wiele

Faculty of Engineering and Information Sciences - Papers: Part A

The human gut is colonized by a complex microbiota with multiple benefits. Although the surface-attached, mucosal microbiota has a unique composition and potential to influence human health, it remains difficult to study in vivo. Therefore, we performed an in-depth microbial characterization (human intestinal tract chip (HITChip)) of a recently developed dynamic in vitro gut model, which simulates both luminal and mucosal gut microbes (mucosal-simulator of human intestinal microbial ecosystem (M-SHIME)). Inter-individual differences among human subjects were confirmed and microbial patterns unique for each individual were preserved in vitro. Furthermore, in correspondence with in vivo studies, Bacteroidetes and Proteobacteria were enriched ...


Should Users Pay The Toll For Australia's Infrastructure Problem?, Garry Bowditch Jan 2013

Should Users Pay The Toll For Australia's Infrastructure Problem?, Garry Bowditch

Faculty of Engineering and Information Sciences - Papers: Part A

Australia spends more on infrastructure today than at any stage in its history. Yet governments are unable to meet demand and don't expect ever to do so. What can governments do to keep up with escalating demand and community expectations for infrastructure? Reserve Bank assistant governor Philip Lowe says tolls and levies could be the answer to more efficiently funding the transport infrastructure we need - infrastructure he says would boost productivity and improve living standards. Tolls are just one issue likely to be debated as part of the Productivity Commission's current inquiry into infrastructure costs, which is considering ...


Dynamic Properties Of Sand-Tyre Chip Mixtures, M S. Mashiri, M. Neaz Sheikh, J S Vinod, Hing Ho Tsang Jan 2013

Dynamic Properties Of Sand-Tyre Chip Mixtures, M S. Mashiri, M. Neaz Sheikh, J S Vinod, Hing Ho Tsang

Faculty of Engineering and Information Sciences - Papers: Part A

The stockpiling of scrap tyres is a significant environmental hazard and has attracted ample research attention to explore viable solutions to recycling and reuse of scrap tyres. The authors have recently proposed a novel seismic isolation method using sand-tyre chips (STCh) mixture for protecting buildings and infrastructure. Although the static properties of STCh mixture have been extensively studied, the investigation on the dynamic properties of the mixture has been limited. The dynamic properties of STCh mixture are important to its application for seismic protection of infrastructure. This paper presents the dynamic properties (shear modulus and damping ratio) of STCh mixture ...


Electro-Tactile Feedback For Tele-Operation Of A Mobile Robot, Daniel Pamungkas, Koren Ward Jan 2013

Electro-Tactile Feedback For Tele-Operation Of A Mobile Robot, Daniel Pamungkas, Koren Ward

Faculty of Engineering and Information Sciences - Papers: Part A

It is well known that haptic feedback can facilitate the tele-operation of a remotely controlled robot by providing the user with intuitive tactile and/or force sensations from the robot's interactions with the environment. However, such mechanical haptic feedback systems can be complex, cumbersome, costly and application specific. This paper presents a novel tele-operation haptic feedback system that overcomes many of these limitations by providing electro-tactile feedback to the operator via wireless electrodes placed on the operator's skin. We show that this form feedback can provide a viable substitute for force and tactile feedback systems without the need ...


Coke Microstructure And Strength Under Blast Furnace Conditions, Xing Xing, Guangqing Zhang, Harold Rogers, Paul Zulli, Oleg Ostrovski Jan 2013

Coke Microstructure And Strength Under Blast Furnace Conditions, Xing Xing, Guangqing Zhang, Harold Rogers, Paul Zulli, Oleg Ostrovski

Faculty of Engineering and Information Sciences - Papers: Part A

No abstract provided.


Effect Of Confining Pressure And Frequency On The Deformation Of Ballast, Pramod Kumar Thakur, Jayan Sylaja Vinod, Buddhima Indraratna Jan 2013

Effect Of Confining Pressure And Frequency On The Deformation Of Ballast, Pramod Kumar Thakur, Jayan Sylaja Vinod, Buddhima Indraratna

Faculty of Engineering and Information Sciences - Papers: Part A

Increasing the speed and frequency of trains with the same static axle weight imparts higher dynamic axle loads more frequently. When this occurs on existing track which has not been designed for such loading there can be increased rates of ballast degradation, characterised by unacceptable deformation and lateral spread, leading to more frequent requirements for track maintenance. Recent studies carried out at the University of Wollongong highlighted that confining pressure and frequency have a significant influence on the permanent deformation and degradation of ballast. However, confinement required to keep the deformation and degradation of the ballasted track to an acceptable ...


Novel Receiver For Correlated Fading Multi-Antenna Physical Network Coding Twrns, Le Chung Tran, A. Mertins, Peter James Vial, Vinh Van Nguyen Jan 2013

Novel Receiver For Correlated Fading Multi-Antenna Physical Network Coding Twrns, Le Chung Tran, A. Mertins, Peter James Vial, Vinh Van Nguyen

Faculty of Engineering and Information Sciences - Papers: Part A

Physical Network Coding (PNC) has recently been proposed for multi-antenna Two-Way Relay Networks (TWRNs) with independent fading channels because the total network throughput could be significantly improved. However, PNC for multi-antenna TWRNs with correlated fading channels has not been considered yet. This paper thus considers an important class of multi-antenna TWRNs with the following properties: single-antenna source nodes and two-antenna relay; distance between source nodes and the relay is significantly larger than that between antennas of the relay; and channels between source nodes and the relay are correlated. For such a system, we first propose a novel correlation model that ...


Microsimulation Study Of The Release Of Pneumonic Plague And Smallpox On A Synthetic Civilian Population, A Green, I Piper, D Keep Jan 2013

Microsimulation Study Of The Release Of Pneumonic Plague And Smallpox On A Synthetic Civilian Population, A Green, I Piper, D Keep

Faculty of Engineering and Information Sciences - Papers: Part A

The confrontation in Syria is a cause for concern over the use of chemical and biological weapons. There have been reports of the use of chemical weapons including Sarin. While both sides accuse each other, there is very little ground evidence at this time (August 2013) to substantiate claims or to determine who is involved. Their use would demonstrate a total disregard for civilian casualties and UN conventions. Syria is thought to have stockpiles of a number of agents including anthrax, plague, tularaemia, botulinium, smallpox and cholera (Gordon, 2007). Some groups sympathetic to Al Qaeda might also have access to ...


On The Effects Of Spreading Sequences Over Mimo Systems, Tianle Liu, David A. Stirling, Le Chung Tran, Tadeusz A. Wysocki, Beata J. Wysocki, Prashan Dissanayake Mudiyanselage,, Peter James Vial Jan 2013

On The Effects Of Spreading Sequences Over Mimo Systems, Tianle Liu, David A. Stirling, Le Chung Tran, Tadeusz A. Wysocki, Beata J. Wysocki, Prashan Dissanayake Mudiyanselage,, Peter James Vial

Faculty of Engineering and Information Sciences - Papers: Part A

In this paper, we develop a Software Defined Radio (SDR) test bed to evaluate the Multiple Access Interference (MAI) effects over SISO and 2 x 1MIMO systems. It can be observed that under asynchronous transmissions, the Gold code leads to the best performance over both systems due to the fact that it has the best correlation properties. We also find the MAI effects in terms of the spreading sequences pairs on MIMO-STS systems. We propose a criterion for selecting promising spreading sequences for MIMO systems. Based on the measured results, we identify pairs of spreading sequences which have improved BER ...


Block Shear Capacity Of Bolted Connections In Hot-Rolled Steel Plates, Lip H. Teh, Veysel Yazici Jan 2013

Block Shear Capacity Of Bolted Connections In Hot-Rolled Steel Plates, Lip H. Teh, Veysel Yazici

Faculty of Engineering and Information Sciences - Papers: Part A

This paper extends the research previously conducted at the University of Wollongong on block shear failure of bolted connections in cold-reduced steel sheets with low ductility to hot-rolled steel plates. It examines the applicability of the basic approach employed for cold-reduced sheet steel bolted connections, which makes use of the so-called active shear planes, to hot-rolled steel plate connections. The active shear planes lie midway between the gross and the net shear planes defined in the steel structures specifications. The paper shows that shear yielding leading to the block shear failure of a bolted connection in a hot-rolled steel gusset ...


99mtc-Dtpa Volume Of Distribution, Half-Life And Glomerular Filtration Rate In Normal Adults, Jennifer L. Holness, John S. Fleming, Alessandra Malaroda, James M. Warwick Jan 2013

99mtc-Dtpa Volume Of Distribution, Half-Life And Glomerular Filtration Rate In Normal Adults, Jennifer L. Holness, John S. Fleming, Alessandra Malaroda, James M. Warwick

Faculty of Engineering and Information Sciences - Papers: Part A

Assessment of volume of distribution (VD) and half-life (T1/2) values during glomerular filtration rate (GFR) investigations is a useful quality control check. The aim of this study was to derive reference data for VD and T1/2 and also to provide reference data for GFR fro studies performed using 99mTc-diethylenetriaminepentaacetic acid.


Embracing Complexity In Engineering Education: A Way Forward For Developing Intercultural Competency, Thomas Goldfinch Jan 2013

Embracing Complexity In Engineering Education: A Way Forward For Developing Intercultural Competency, Thomas Goldfinch

Faculty of Engineering and Information Sciences - Papers: Part A

towards engineering education that prepares graduates to work effectively across foreign cultures and customs1-3. The author argues that while this outward focus is important and necessary, there is also a need to focus on preparing graduates for cultural issues that will arise much closer to home. Identifying, and working with subtle cultural differences that can occur in workplaces, organizations and the community, where the population may initially appear monocultural, presents unique challenges. The way in which one assumes cultural uniformity in a given situation can contribute to the oversimplification of a problem, and subsequently the pursuit of ineffective solutions. In ...


Wear Mode Map Evaluation Of Induction Hardened 4140 And Carburised 8617h Steels On 1040 Steel, Alain Kusmoko, Alan Crosky Jan 2013

Wear Mode Map Evaluation Of Induction Hardened 4140 And Carburised 8617h Steels On 1040 Steel, Alain Kusmoko, Alan Crosky

Faculty of Engineering and Information Sciences - Papers: Part A

This study was undertaken to evaluate the likely effect on the wear rate of changing the pinion material in a rack and pinion steering box from carburised SAE-AISI grade 8617 H steel to induction hardened SAE-AISI grade 4140 steel. Accordingly, pin-on-disc unlubricated wear tests were conducted using carburised 8617 H pins and through hardened 4140 pins. The surface hardness of the pins was approximately 60 HRC for both materials. The discs were made of SAE-AISI grade 1040 steel through hardened to a hardness of 45 HRC. The tests were conducted using a load of 2.2 kg and a rotational ...


Asset Management In The Energy Pipeline Industry In Australia, Richard Dwight, Tieling Zhang, Khaled O. El-Akruti Jan 2013

Asset Management In The Energy Pipeline Industry In Australia, Richard Dwight, Tieling Zhang, Khaled O. El-Akruti

Faculty of Engineering and Information Sciences - Papers: Part A

A review of asset management systems within the context of energy pipelines has been conducted. It covers available methodologies, current asset management systems, opportunities for improvement and research challenges. A particular point of interest is the degree to which consideration of remaining life and the influence of maintenance activities are used to drive the asset management strategy. Asset management within the energy pipeline industry is mostly concerned with integrity assurance. Irrespective of this overriding goal, cost of delivery is also of concern. At any point of the service life the remaining life of the pipeline at an acceptable level of ...


Mitigation Of Rooftop Solar Pv Impacts And Evening Peak Support By Managing Available Capacity Of Distributed Energy Storage Systems, Md Jan-E- Alam, Kashem Muttaqi, Darmawan Soetanto Jan 2013

Mitigation Of Rooftop Solar Pv Impacts And Evening Peak Support By Managing Available Capacity Of Distributed Energy Storage Systems, Md Jan-E- Alam, Kashem Muttaqi, Darmawan Soetanto

Faculty of Engineering and Information Sciences - Papers: Part A

A high penetration of rooftop solar photovoltaic (PV) resources into low-voltage (LV) distribution networks creates reverse power-flow and voltage-rise problems. This generally occurs when the generation from PV resources substantially exceeds the load demand during high insolation period. This paper has investigated the solar PV impacts and developed a mitigation strategy by an effective use of distributed energy storage systems integrated with solar PV units in LV networks. The storage is used to consume surplus solar PV power locally during PV peak, and the stored energy is utilized in the evening for the peak-load support. A charging/discharging control strategy ...


Klein Tunneling And Cone Transport In Aa-Stacked Bilayer Graphene, Matthew Sanderson, Yee Sin Ang, C Zhang Jan 2013

Klein Tunneling And Cone Transport In Aa-Stacked Bilayer Graphene, Matthew Sanderson, Yee Sin Ang, C Zhang

Faculty of Engineering and Information Sciences - Papers: Part A

We investigate the quantum tunneling of electrons in an AA-stacked bilayer graphene (BLG) n-p junction and n-p-n junction. We show that Klein tunneling of an electron can occur in this system. The quasiparticles are not only chiral but are additionally described by a "cone index." Due to the orthogonality of states with different cone indexes, electron transport across a potential barrier must strictly conserve the cone index, and this leads to the protected cone transport which is unique in AA-stacked BLG. Together with the negative refraction of electrons, electrons residing in different cones can be spatially separated according to their ...


Online In Vivo Dosimetry In High Dose Rate Prostate Brchytherapy With Moskin Detectors: In Phantom Feasibility Study, G Gambarini, M Carrara, C Tenconi, N Mantaut, M Borroni, D Cutajar, M Petasecca, I Fuduli, M Lerch, E Pignoli, Anatoly B. Rosenfeld Jan 2013

Online In Vivo Dosimetry In High Dose Rate Prostate Brchytherapy With Moskin Detectors: In Phantom Feasibility Study, G Gambarini, M Carrara, C Tenconi, N Mantaut, M Borroni, D Cutajar, M Petasecca, I Fuduli, M Lerch, E Pignoli, Anatoly B. Rosenfeld

Faculty of Engineering and Information Sciences - Papers: Part A

MOSkin detectors were studied to perform real-time in vivo dose measurements in high dose rate prostate brachytherapy. Measurements were performed inside an urethral catheter in a gel phantom simulating a real prostate implant. Measured and expected doses were compared and the discrepancy was found to be within 8.9% and 3.8% for single MOSkin and dual-MOSkin configurations, respectively. Results show that dual-MOSkin detectors can be profitably adopted in prostate brachytherapy treatments to perform real-time in vivo dosimetry inside the urethra.


Development Of Safe Optimized Welding Procedures For High Strength Q&T Steel Welded With Austenitic Consumables, Lenka Kuzmikova, Huijun Li, John Norrish, Zengxi Stephen Pan, Nathan Larkin Jan 2013

Development Of Safe Optimized Welding Procedures For High Strength Q&T Steel Welded With Austenitic Consumables, Lenka Kuzmikova, Huijun Li, John Norrish, Zengxi Stephen Pan, Nathan Larkin

Faculty of Engineering and Information Sciences - Papers: Part A

High strength quenched and tempered (Q&T) steels offer obvious economic benefits originating from their advantageous strength to price and weight ratios. These steels are usually welded using ferritic consumables and for this combination the risk of hydrogen assisted cold cracking (HACC) is high. The use of austenitic stainless steel (ASS) consumables has great potential to significantly improve this issue. Yet, there are no guidelines for determination of safe level of preheat for welding ferritic steels with ASS consumables. For this reason manufacturers adopt this parameter from procedures developed for conventional ferritic consumables thus significantly limiting the benefits ASS consumables ...


Alternative Al Production Methods: Part 1 - A Review Of Indirect Carbothermal Routes, M A. Rhamdhani, M A. Dewan, G A. Brooks, B J. Monaghan, L Prentice Jan 2013

Alternative Al Production Methods: Part 1 - A Review Of Indirect Carbothermal Routes, M A. Rhamdhani, M A. Dewan, G A. Brooks, B J. Monaghan, L Prentice

Faculty of Engineering and Information Sciences - Papers: Part A

The production of Al from its ores at present relies on the Bayer (alumina production) and the Hall- Heroult (Al production) process. The cost associated with alumina production and apparent disadvantages of the Hall-Heroult process have led to intensive research to find alternative routes for Al production. The direct carbothermal reduction process has been thoroughly investigated as an alternative technique. Another alternative includes the indirect carbothermal reduction route where alumina (or aluminous ores) is first reduced to intermediate Al compounds before reduced further to Al. The present study reviews and provides systematic thermodynamic analyses of alternative Al production routes. In ...


Effect Of Annealing On Properties Of Carbonaceous Materials. Part Iii: Macro And Microstrengths, Xing Xing, Guangqing Zhang, Mark Dell'amico, George Ciezki, Qingbo Meng, Oleg Ostrovski Jan 2013

Effect Of Annealing On Properties Of Carbonaceous Materials. Part Iii: Macro And Microstrengths, Xing Xing, Guangqing Zhang, Mark Dell'amico, George Ciezki, Qingbo Meng, Oleg Ostrovski

Faculty of Engineering and Information Sciences - Papers: Part A

Carbonaceous materials including cokes, chars, and pyrolyzed coals were annealed at temperatures ranging from 973 K to 1773 K (700 C to 1500 C) in an inert atmosphere. Macro and microstrengths of original and annealed carbonaceous materials were characterized by the tensile strength and fracture toughness. Fracture toughness was determined for inert maceralderived component (IMDC) and reactive maceral-derived component (RMDC) using ultramicro indentation. Experimental data obtained by tensile tests were processed using the Weibull statistical method to find ‘‘inherent’’ strength. Tensile strength of chars and coals was significantly increased by annealing at temperatures ranging from 973 K to 1373 K ...


The Future Prospects Of Embedded Microchips In Humans As Unique Identifiers: The Risks Versus The Rewards, Katina Michael, M G. Michael Jan 2013

The Future Prospects Of Embedded Microchips In Humans As Unique Identifiers: The Risks Versus The Rewards, Katina Michael, M G. Michael

Faculty of Engineering and Information Sciences - Papers: Part A

Microchip implants for humans are not new. Placing heart pacemakers in humans for prosthesis is now considered a straightforward procedure. In more recent times we have begun to use brain pacemakers for therapeutic purposes to combat illnesses such as epilepsy, Parkinson's disease, and severe depression. Microchips are even being placed inside prosthetic knees and hips during restorative procedures to help in the gathering of post-operative analytics that can aid rehabilitation further. While medical innovations that utilize microchips abound, over the last decade we have begun to see the potential use of microchip implants for non-medical devices in humans, namely ...


Applying Mathematical Model To Simplify The Procession Of Pipeline Route Selection, Jianli Liu, Shuqing Yang, Joseph Wiltshire Jan 2013

Applying Mathematical Model To Simplify The Procession Of Pipeline Route Selection, Jianli Liu, Shuqing Yang, Joseph Wiltshire

Faculty of Engineering and Information Sciences - Papers: Part A

Now there are many pipelines to deliver liquid-like water diversions in the world. Optimal route for pipeline transportation is a major concern for engineers, economists, and decision makers. Pipeline route selection is governed by many factors such as the shortest distance between supply and demand points, constructability, affordability, environmental impacts, and approachability. There are many methods developed for the pipeline route selection like Gestalt method, land suitability mapping techniques, geographic information systems (GIS), imaging technologies for pipeline mapping with the use of airborne lidar, etc. But these methods, though robust in translating physical constraints into feasible alternatives for route location ...


Stainlessness, Etienne Turpin Jan 2013

Stainlessness, Etienne Turpin

Faculty of Engineering and Information Sciences - Papers: Part A

To accompany the book Stainlessness, published this Spring by the Journal of Aesthetics and Protest Press (Leipzig and Los Angeles), Sound & Language Distribution is pleased to announce the release of a Limited Edition set of prints. The etched plates on view in the Convenience Gallery - and the set of prints they produced - tell the story of labor movements in North America and show how they have shaped the cities of Sudbury, Chicago, Pittsburgh, and Detroit. While processes of urbanization have all but erased these struggles from our cities and left only ambivalent monuments to mark the past, these prints assert ...


Hand Gesture Recognition: An Overview, Shuai Yang, Prashan Premaratne, Peter James Vial Jan 2013

Hand Gesture Recognition: An Overview, Shuai Yang, Prashan Premaratne, Peter James Vial

Faculty of Engineering and Information Sciences - Papers: Part A

Hand gesture recognition has been applied to many fields in recent years, especially in man-machine interaction (MMI) area, which is regarded as a more natural and flexible input. In this paper, an overview of hand gesture recognition research up to date is presented, which includes common stages of hand gesture recognition, common methods and technique of each stage, the state of the recent research and summaries of some successful hand gesture recognition models. 2013 IEEE.


Power Sharing Among Multiple Solar Photovoltaic (Pv) Systems In A Radial Distribution Feeder, Brian K. Perera, Philip Ciufo Jan 2013

Power Sharing Among Multiple Solar Photovoltaic (Pv) Systems In A Radial Distribution Feeder, Brian K. Perera, Philip Ciufo

Faculty of Engineering and Information Sciences - Papers: Part A

With an increasing penetration of solar photovoltaic (PV) systems, power distribution grids are becoming more susceptible to network voltage rise. As per applicable standards for grid-integrated PV systems, a PV system must be automatically disconnected from the grid when the terminal voltage of the PV system exceeds a defined maximum voltage. With this directive, in certain situations, PV systems connected at nodes at which the voltage sensitivity is high, may be disconnected from the grid while PV systems connected at less sensitive nodes are continuing to operate. In such a situation, owners whose PV systems are connected at nodes at ...


Meta-Development Of Resources And Learning Designs: Providing Ict-Based Tools For Use By Mathematics Teachers, Maman Fathurrohman, Anne Porter, Annette Worthy Jan 2013

Meta-Development Of Resources And Learning Designs: Providing Ict-Based Tools For Use By Mathematics Teachers, Maman Fathurrohman, Anne Porter, Annette Worthy

Faculty of Engineering and Information Sciences - Papers: Part A

This paper is a report of a meta-development research project of mathematical learning resources and learning designs. The process of meta-development was conducted through mapping of mathematical learning resources and learning designs based on an observation of 119 participating teachers in Bojonegara Sub District, Indonesia. The outcomes of the meta-development include two prototypes that are similar in concept, yet different in function: the first prototypes can be use for mapping mathematical learning resources in the Internet, while the second prototype can be use for documenting and sharing mathematics teaching and learning experiences. The prototypes were evaluated based on trial with ...


A Time-Varying Mimo Generalized Minimum Variance Controller For Servo Application, Zheng Li, Guoli Wang Jan 2013

A Time-Varying Mimo Generalized Minimum Variance Controller For Servo Application, Zheng Li, Guoli Wang

Faculty of Engineering and Information Sciences - Papers: Part A

A generalized minimum variance controller is developed for multiple input and multiple output systems having time-varying dynamics. The plant to be controlled is described using a controlled autoregressive moving average model and the control objective is to minimize a generalized minimum variance performance index for servo applications. (2013) Trans Tech Publications, Switzerland.


Positron And Electron Collisions With Nitrous Oxide: Measured And Calculated Cross Sections, Luca Chiari, Antonio Zecca, Emanuele Trainotti, Gustavo Garcia, Francisco Blanco, Marcio H. F Bettega, Sergio D'A Sanchez, Marcio T. Do N Varella, Marco A. P. Lima, M J. Brunger Jan 2013

Positron And Electron Collisions With Nitrous Oxide: Measured And Calculated Cross Sections, Luca Chiari, Antonio Zecca, Emanuele Trainotti, Gustavo Garcia, Francisco Blanco, Marcio H. F Bettega, Sergio D'A Sanchez, Marcio T. Do N Varella, Marco A. P. Lima, M J. Brunger

Faculty of Engineering and Information Sciences - Papers: Part A

We present cross-section results from an experimental and theoretical study on positron scattering from nitrous oxide. Total cross sections (TCSs) have been measured at incident energies between 0.1 and 70 eV with a linear-transmission-based positron spectrometer. Elastic differential and integral cross sections, as well as inelastic integral cross sections and TCSs, have been computed with two different theoretical approaches: the independent atom model with screening-corrected additivity rule (IAM-SCAR), at energies in the 1- to 1000-eV range, and the Schwinger multichannel method at energies between 0.1 and 10 eV. Note that the latter method specifically reports cross sections for ...


An Improved Svd-Based Wall Clutter Mitigation Method For Through-The-Wall Radar Imaging, Fok Hing Chi Tivive, Abdesselam Bouzerdoum Jan 2013

An Improved Svd-Based Wall Clutter Mitigation Method For Through-The-Wall Radar Imaging, Fok Hing Chi Tivive, Abdesselam Bouzerdoum

Faculty of Engineering and Information Sciences - Papers: Part A

This paper presents an improved SVD-based method for wall clutter mitigation in through-the-wall radar imaging. The dominant wall singular components are identified from the singular value spectrum. A subspace projection method is then applied to remove the strong wall clutter, residing in the dominant singular components, and separate the target signal from noise. The remaining wall clutter residual, which is mixed with the target signal, is suppressed by segmenting the range profile of the signal residing in the subspace orthogonal to the wall and noise subspaces. A Gaussian mixture is used to model the range profile, and the optimum segmentation ...


Espi Filtering Method Based On Anisotropic Coherence Diffusion And Perona-Malik Diffusion, Zhitao Xiao, Zhenbei Xu, Fang Zhang, Lei Geng, Jun Wu, Quan Yuan, Jiangtao Xi Jan 2013

Espi Filtering Method Based On Anisotropic Coherence Diffusion And Perona-Malik Diffusion, Zhitao Xiao, Zhenbei Xu, Fang Zhang, Lei Geng, Jun Wu, Quan Yuan, Jiangtao Xi

Faculty of Engineering and Information Sciences - Papers: Part A

Noise reduction is one of the most important concerns in electronic speckle pattern interferometry (ESPI). According to partial differential equation (PDE) filtering theory, we present an anisotropic PDE noise- reduction model based on fringe structure information for interferometric fringe patterns. This model is based on coherence diffusion and Perona-Malik (P-M) diffusion. The former can protect the structure information of fringe pattern, while the latter can effectively filter off the noise inside the fringes. The proposed model generated by the two diffusion methods helps to obtain good effects of denoising and fidelity. ESPI fringes and the phase pattern are tested. Experimental ...