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Full-Text Articles in Engineering
System And Technique For Retrieving Depth Information About A Surface By Projecting A Composite Image Of Modulated Light Patterns, Laurence G. Hassebrook, Daniel L. Lau, Chun Guan
System And Technique For Retrieving Depth Information About A Surface By Projecting A Composite Image Of Modulated Light Patterns, Laurence G. Hassebrook, Daniel L. Lau, Chun Guan
Electrical and Computer Engineering Faculty Patents
A technique, associated system and program code, for retrieving depth information about at least one surface of an object, such as an anatomical feature. Core features include: projecting a composite image comprising a plurality of modulated structured light patterns, at the anatomical feature; capturing an image reflected from the surface; and recovering pattern information from the reflected image, for each of the modulated structured light patterns. Pattern information is preferably recovered for each modulated structured light pattern used to create the composite, by performing a demodulation of the reflected image. Reconstruction of the surface can be accomplished by using depth …
Particle Separation/Purification System, Diffuser And Related Methods, John M. Stencel, Tapiwa Zabron Gurupira
Particle Separation/Purification System, Diffuser And Related Methods, John M. Stencel, Tapiwa Zabron Gurupira
Center for Applied Energy Research Faculty Patents
A separator and related separation methods are for intended use in separating particles having a selected charge from a particle mixture entrained in or carried by a fluid flow. The separator comprises a tubular, elongated body for receiving the fluid flow. At least one and preferably a pair of electrodes may be provided to create an electric field in at least a portion of the body through which the fluid flow passes, and at least one partition defines first and second channels for receiving the flow downstream of the portion of the body including the electric field. In one embodiment, …
Dynamic Hand Gesture Recognition System Using Moment Invariants, Zhengmao Zou, Prashan Premaratne, Malin Premaratne, Ravi Monaragala, Nalin Bandara
Dynamic Hand Gesture Recognition System Using Moment Invariants, Zhengmao Zou, Prashan Premaratne, Malin Premaratne, Ravi Monaragala, Nalin Bandara
Faculty of Engineering - Papers (Archive)
We have developed a dynamic hand gesture recognition system that can simplify the way humans interact with computers and many other non-critical consumer electronic equipment. The proposed system is based on the well-known “Wave Controller” technology developed at the University of Wollongong and will revolutionize video gaming and consumer electronics control interfaces. Currently, computer interfacing mainly involves keyboard, mouse, joystick or gaming wheels and occasionally voice recognition for user input. These modes of interaction have restrained the artistic ability of many users, as they are required to respond to the computer through pressing buttons or moving other apparatus. Voice recognition …
Performance Enhancement Of A Complex Chilled Water System Using A Check Valve: Experimental Validation, Shengwei Wang, Zhenjun Ma, Dian-Ce Gao
Performance Enhancement Of A Complex Chilled Water System Using A Check Valve: Experimental Validation, Shengwei Wang, Zhenjun Ma, Dian-Ce Gao
Faculty of Engineering - Papers (Archive)
The large primary–secondary chilled water systems often suffer from the excess flow demand and low chilled water temperature difference, which is known as the low ΔT central plant syndrome, during operation. This paper presents an approach for experimental validation of the possible utility of a check valve (i.e., putting a one-direction check valve in the chilled water by-pass line) to solve this operational problem and enhance the overall system performance, prior to a check valve is really installed. The experimental tests were carried out on the complex central chiller plant in a super high-rise building using a simulated check valve …
A Novel Multiferroic System: Rare Earth Chromates, Zhenxiang Cheng, Xiaolin Wang, S X. Dou, Hideo Kimura, Kiyoshi Ozawa
A Novel Multiferroic System: Rare Earth Chromates, Zhenxiang Cheng, Xiaolin Wang, S X. Dou, Hideo Kimura, Kiyoshi Ozawa
Australian Institute for Innovative Materials - Papers
In this work, we report on our studies on the multiferroic properties of two rare earth chromates, GdCrO3 and YCrO3. Polycrystalline bulks and thin films have been fabricated using conventional solid state reaction and pulsed laser deposition. Magnetic measurements have revealed that both compounds show weak ferromagnetism below the antiferromagnetic Neel temperature, TN, of 170 and 140 K for GdCrO3 and YCrO3, respectively. However the well-developed ferroelectric polarization electrical field loop was not successfully measured for both samples due to their low resistance. The high conductivity of the samples at room temperature is related …
A Fiber Bragg Grating Sensor System For Train Axle Counting, Chu-Liang Wei, Chun-Cheung Lai, Shun-Yee Liu, W.H. Chung, T. K. Ho, Hwa-Yaw Tam, S. L. Ho, A. Mccusker, J. Kam, K. Y. Lee
A Fiber Bragg Grating Sensor System For Train Axle Counting, Chu-Liang Wei, Chun-Cheung Lai, Shun-Yee Liu, W.H. Chung, T. K. Ho, Hwa-Yaw Tam, S. L. Ho, A. Mccusker, J. Kam, K. Y. Lee
SMART Infrastructure Facility - Papers
Railway signaling facilitates two main functions, namely, train detection and train control, in order to maintain safe separations among the trains. Track circuits are the most commonly used train detection means with the simple open/close circuit principles; and subsequent adoption of axle counters further allows the detection of trains under adverse track conditions. However, with electrification and power electronics traction drive systems, aggravated by the electromagnetic interference in the vicinity of the signaling system, railway engineers often find unstable or even faulty operations of track circuits and axle counting systems, which inevitably jeopardizes the safe operation of trains. A new …
Implementation And Application Of A Real-Time Control System Using Matlab/Xpc, Xiaofeng He, Zhengyi Jiang, Christopher David Cook, Yinshui Liu
Implementation And Application Of A Real-Time Control System Using Matlab/Xpc, Xiaofeng He, Zhengyi Jiang, Christopher David Cook, Yinshui Liu
Faculty of Engineering - Papers (Archive)
A real-time control system for rolling mill control such as the Hille 100 experimental rolling mill was developed based on Matlab Simulink, Real-Time Workshop and xPC Target. The Host-Target PCs architecture for the control system was introduced, then the approach for the implementation of data acquisition, real-time control and the associated graphic user interface (GUI), were discussed in detail. Some limitations of the commercial software were also presented. The developed control system has been verified with Hille 100 rolling mill in laboratory, indicating the effective application in rolling mill control.
A Hybrid Highly Birefringent Fiber Optic Sensing System For Simultaneous Strain And Temperature Measurement, Piotr Lesiak, Ginu Rajan, Yuliya Semenova, Gerald Farrell, Anna Boczkowska, Andrzej Domanski, Tomasz Wolinski
A Hybrid Highly Birefringent Fiber Optic Sensing System For Simultaneous Strain And Temperature Measurement, Piotr Lesiak, Ginu Rajan, Yuliya Semenova, Gerald Farrell, Anna Boczkowska, Andrzej Domanski, Tomasz Wolinski
Faculty of Engineering and Information Sciences - Papers: Part A
A novel hybrid fiber optic sensor based on integration of polarimetric fiber sensors for simultaneous strain and temperature measurement is presented in this paper. Two types of polarimetric fibers are used: a side-hole fiber and a polarization maintaining photonic crystal fiber. The disadvantage of each sensor type can be overcome by using the sensors in a complementary manner to measure temperature independently from average strain. © 2010 Photonics Society of Poland.
A Decision Support System For Concrete Bridge Maintenance, Maria Rashidi, Brett P. Lemass, Peter R. Gibson
A Decision Support System For Concrete Bridge Maintenance, Maria Rashidi, Brett P. Lemass, Peter R. Gibson
Faculty of Engineering - Papers (Archive)
The maintenance of bridges as a key element in transportation infrastructure has become a major concern for asset managers and society due to increasing traffic volumes, deterioration of existing bridges and well-publicised bridge failures. A pivotal responsibility for asset managers in charge of bridge remediation is to identify the risks and assess the consequences of remediation programs to ensure that the decisions are transparent and lead to the lowest predicted losses in recognized constraint areas. The ranking of bridge remediation treatments can be quantitatively assessed using a weighted constraint approach to structure the otherwise ill-structured phases of problem definition, conceptualization …
The Resonant Tunneling Through A Graphene Multiquantum Well System, G.J Xu, X.G Xu, B.H Wu, J.C Cao, Chao Zhang
The Resonant Tunneling Through A Graphene Multiquantum Well System, G.J Xu, X.G Xu, B.H Wu, J.C Cao, Chao Zhang
Faculty of Engineering - Papers (Archive)
The transport properties of a graphene multiquantum well system are investigated numerically using transfer-matrix method. There are transmission gaps for electrons and holes in the transmission spectra at tilted incidence. In the transmission gaps, a few resonant tunneling peaks appear, defined as transmission windows, which are related with the bound states in the quantum wells. Unlike conventional semiconductor nanostructures, the location and the width of the transmission windows are sensitive not only to the quantum well width but also the incident angle. The number of the quantum wells determines the fine structure of the transmission windows. The anisotropic property is …
Wide Dynamic Range Acquisition System For Innovative Radiation Detectors, Marco Petasecca, B Alpat, G Ambrosi, M Menichelli, A Papi, P Cirrone, F Ferrera, P Figuera, P Finocchiaro, M Lattuada, D Rifuggiato, F Bizzarri, S Blasko, Diego Caraffini, Francesca Renzi, H Denizli
Wide Dynamic Range Acquisition System For Innovative Radiation Detectors, Marco Petasecca, B Alpat, G Ambrosi, M Menichelli, A Papi, P Cirrone, F Ferrera, P Figuera, P Finocchiaro, M Lattuada, D Rifuggiato, F Bizzarri, S Blasko, Diego Caraffini, Francesca Renzi, H Denizli
Faculty of Engineering - Papers (Archive)
There is particular interest to develop low-noise and wide dynamic range data acquisition systems for silicon detectors in view of using the same acquisition readout electronics for a wide range of application fields like monitoring and characterization of radiation sources or particle beams. In the framework of a research project for the qualification of Components Off The Shelf (COTS) for their use in space, research groups from INFN-Perugia, INFN-LNS and from MAPRAD have developed a fully automated, remote controllable, wide dynamic range acquisition system for silicon strip or pixelated detectors. Its design and a basic description of the performance are …
Ultrabroadband Optical Parametric Chirped Pulse Amplifier System For Single-Cycle Waveform Synthesis, Shu-Wei Huang, Giovanni Cirmi, Jeffrey Moses, Kyung-Han Hong, Andrew Benedick, Li-Jin Chen, Enbang Li, Benjamin J. Eggleton, Giulio Cerullo, Franz X. Kartner
Ultrabroadband Optical Parametric Chirped Pulse Amplifier System For Single-Cycle Waveform Synthesis, Shu-Wei Huang, Giovanni Cirmi, Jeffrey Moses, Kyung-Han Hong, Andrew Benedick, Li-Jin Chen, Enbang Li, Benjamin J. Eggleton, Giulio Cerullo, Franz X. Kartner
Faculty of Engineering and Information Sciences - Papers: Part A
We demonstrate synchronized few-cycle 800-nm and 2-μm pulse trains seeded from a single Ti:sapphire oscillator, able to generate scalable, high-energy pulses lasting less than a single electric-field cycle. Such pulses are attractive for high-field physics.
A Combined Hydrogen Storage System Of Mg(Bh4)(2)-Linh2 With Favorable Dehydrogenation, S X. Dou, Zaiping Guo, Hua-Kun Liu, Abbas Ranjbar, Xuebin Yu, Zunxian Yang, D. L. Sun, Y H. Guo
A Combined Hydrogen Storage System Of Mg(Bh4)(2)-Linh2 With Favorable Dehydrogenation, S X. Dou, Zaiping Guo, Hua-Kun Liu, Abbas Ranjbar, Xuebin Yu, Zunxian Yang, D. L. Sun, Y H. Guo
Faculty of Engineering - Papers (Archive)
The decomposition properties of Mg(BH4)2−LiNH2 mixtures were investigated. Apparent NH3 release appeared from 50 to 300 °C for the Mg(BH4)2−LiNH2 mixtures with mole ratios of 1:1.5, 1:2, and 1:3, while only hydrogen release was detected for the mixture with a mole ratio of 1:1. In the case of the Mg(BH4)2−LiNH2 (1:1) sample, the onset of the first-step dehydrogenation starts at 160 °C, with a weight loss of 7.2 wt % at 300 °C, which is improved significantly compared to the pure Mg(BH4) …