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Accurate Magneto-Optical Determination Of Radius Of Topological Nodal-Ring Semimetals, Wenye Duan, Cuihong Yang, Zhongshui Ma, Yiming Zhu, C Zhang 2019 University of Wollongong

Accurate Magneto-Optical Determination Of Radius Of Topological Nodal-Ring Semimetals, Wenye Duan, Cuihong Yang, Zhongshui Ma, Yiming Zhu, C Zhang

Faculty of Engineering and Information Sciences - Papers: Part B

The shape of the Fermi surface of topological nodal-ring semimetals at low carrier concentrations is characterized by the ring radius b/ℏvF. This peculiar topological property may not have a clear signature in measurable physical quantities. We demonstrate an accurate and definitive method to determine the radius of topological nodal-ring semimetals. Under a magnetic field along the ring axis, the axial magneto-optical response (σzz) has a giant peak. The position of this ultrastrong response is at the frequency of exactly 2b and is independent of the strength of the magnetic field. The amplitude of the peak response is many times ...


A Novel Cloud Based Auxiliary Medical System For Hypertension Management, Rui Zhou, Yunshan Cao, Rui Zhou, Qingwei Zhou, Jun Shen, Qingguo Zhou, Haifeng Zhang 2019 Lanzhou University

A Novel Cloud Based Auxiliary Medical System For Hypertension Management, Rui Zhou, Yunshan Cao, Rui Zhou, Qingwei Zhou, Jun Shen, Qingguo Zhou, Haifeng Zhang

Faculty of Engineering and Information Sciences - Papers: Part B

As a common disease, hypertension (HTN) can lead to severe complications such as heart failure, renal failure and stroke. However, delayed diagnosis often happens because of no obvious symptoms in earlier stage. This paper addresses the issue through a novel cloud based auxiliary medical system for HTN. Nowadays, telemedicine has been used to diagnose and monitor HTN by sharing and consulting personal health status with doctors. Its high flexibility and processing ability have helped to reduce the overall cost of medical care and enhanced the control rate. Technically, telemedicine uses communication, holographic imaging and computer science to achieve the management ...


Pickles And Pastrami: The Core Of The American Jew, Theo Satloff 2019 Colby College

Pickles And Pastrami: The Core Of The American Jew, Theo Satloff

Honors Theses

This thesis argues the there is a strong, interdependent relationship between the creation of the American Jewish deli and the growth and progress of the food technology, food safety, and society within American life. The importance of recognizing the Jewish deli as a key element in tracing the history of American life post-1800s has been underemphasized throughout the deli’s entire existence. Jewish delis represented the intersection of centuries-old technologies and modern innovations, the meeting of centuries-old cultures and new communities, and formed the basis for a force that would have an outsized impact on American politics thereafter.


High Sensitive Sensing By A Laser Diode With Dual Optical Feedback Operating At Period-One Oscillation, Yuxi Ruan, Bin Liu, Yanguang Yu, Jiangtao Xi, Qinghua Guo, Jun Tong 2019 University of Wollongong

High Sensitive Sensing By A Laser Diode With Dual Optical Feedback Operating At Period-One Oscillation, Yuxi Ruan, Bin Liu, Yanguang Yu, Jiangtao Xi, Qinghua Guo, Jun Tong

Faculty of Engineering and Information Sciences - Papers: Part B

Laser dynamics have great potential for various applications, ranging from cryptography to microwave photonics and instrumentation. This letter presents a design for achieving high sensitive sensing and measurement using the dynamics of a laser diode (LD) with a dual external cavity. In the design, one cavity is used to control the dynamics, making the LD operate at the period-one (P1) oscillation state, and the other one is associated with the quantities to be measured. The Lang-Kobayashi equations are modified and solved to develop a bifurcation diagram for the design, from which we determine the P1 state and investigate the sensing ...


Metamorphic Testing Of Driverless Cars, Zhi Q. Zhou, Liqun Sun 2019 University of Wollongong

Metamorphic Testing Of Driverless Cars, Zhi Q. Zhou, Liqun Sun

Faculty of Engineering and Information Sciences - Papers: Part B

On March 18, 2018, Elaine Herzberg became the first pedestrian in the world to be killed by an autonomous vehicle after being hit by a self-driving Uber SUV in Tempe, AZ, at about 10 p.m. Video released by the local police department showed the self-driving Volvo XC90 did not appear to see Herzberg, as it did not slow down or alter course, even though she was visible in front of the vehicle prior to impact. Subsequently, automotive engineering experts raised questions about Uber's LiDAR technology.12 LiDAR, or "light detection and ranging," uses pulsed laser light to enable ...


Gpr Target Detection By Joint Sparse And Low-Rank Matrix Decomposition, Fok Hing Chi Tivive, Abdesselam Bouzerdoum, Canicious Abeynayake 2019 University of Wollongong

Gpr Target Detection By Joint Sparse And Low-Rank Matrix Decomposition, Fok Hing Chi Tivive, Abdesselam Bouzerdoum, Canicious Abeynayake

Faculty of Engineering and Information Sciences - Papers: Part B

Ground penetrating radar (GPR) uses electromagnetic waves to image, locate, and identify changes in electric and magnetic properties in the ground. The received signal comprises not only the target echoes but also strong reflections from the rough, uneven ground surface, which impair subsurface inspections and visualization of buried objects. In this paper, a background clutter mitigation and target detection method using low-rank and sparse priors is proposed for GPR data. The radar signal is decomposed into the sum of a low-rank component and a sparse component, plus noise. The low-rank component captures the ground surface reflections and background clutter, whereas ...


Quantification Of Texture-Induced Ridging In Ferritic Stainless Steels 430 And 430lr During Tensile Deformation, Xiaoguang Ma, Jingwei Zhao, Wei Du, Xin Zhang, Laizhu Jiang, Zhengyi Jiang 2019 University of Wollongong

Quantification Of Texture-Induced Ridging In Ferritic Stainless Steels 430 And 430lr During Tensile Deformation, Xiaoguang Ma, Jingwei Zhao, Wei Du, Xin Zhang, Laizhu Jiang, Zhengyi Jiang

Faculty of Engineering and Information Sciences - Papers: Part B

A comparative study has been carried out to assess the effect of rolling and annealing processes on ridging generation of ferritic stainless steels (FSSs) 430 and 430LR after tensile deformation. The results show that FSS 430LR has better ridging resistance owing tothe refinement of microstructure and crystallographic texture optimisation. A 30% reduction of ridging height can be achieved using FSS 430LR compared to FSS 430 after tension.Optimal reduction during cold rolling benefits the microstructural refinement and surface quality improvement of FSSs 430 and 430LR. Both theoretical calculations and experimental results indicate that the (1 1 2) and the (0 ...


A Secure And Efficient Data Sharing And Searching Scheme In Wireless Sensor Networks, Binrui Zhu, Willy Susilo, Jing Qin, Fuchun Guo, Zhen Zhao, Jixin Ma 2019 Shandong University

A Secure And Efficient Data Sharing And Searching Scheme In Wireless Sensor Networks, Binrui Zhu, Willy Susilo, Jing Qin, Fuchun Guo, Zhen Zhao, Jixin Ma

Faculty of Engineering and Information Sciences - Papers: Part B

Wireless sensor networks (WSN) generally utilize cloud computing to store and process sensing data in real time, namely, cloud-assisted WSN. However, the cloud-assisted WSN faces new security challenges, particularly outsourced data confidentiality. Data Encryption is a fundamental approach but it limits target data retrieval in massive encrypted data. Public key encryption with keyword search (PEKS) enables a data receiver to retrieve encrypted data containing some specific keyword in cloud-assisted WSN. However, the traditional PEKS schemes suffer from an inherent problem, namely, the keyword guessing attack (KGA). KGA includes off-line KGA and on-line KGA. To date, the existing literature on PEKS ...


Creep In Primary Consolidation With Rate Of Loading Approach, Gang Bi, Shua Ni, Dong Wang, Yeqiang Chen, Jianfei Wei, Wenzong Gong 2019 Yango University

Creep In Primary Consolidation With Rate Of Loading Approach, Gang Bi, Shua Ni, Dong Wang, Yeqiang Chen, Jianfei Wei, Wenzong Gong

Faculty of Engineering and Information Sciences - Papers: Part B

The debate on creep in primary consolidation is analysed with a power law model following an approach in which creep is considered as rate of loading. According to this approach, primary consolidation is one type of rate of loading. To verify this approach, two types of tests, standard oedometer test and oedometer test with drainage prevented, are conducted on three types of soils (two from NGES and the other from Port of Guangzhou). The result: creep exponents obtained from two kinds of tests agree well with each other. Moreover, the approach is further validated by tracking, for over 80 years ...


Consequence Modelling Of Co2 Pipeline Failure, Xiong Liu, Ajit R. Godbole, Cheng Lu, Guillaume Michal, Valerie M. Linton 2019 University of Wollongong

Consequence Modelling Of Co2 Pipeline Failure, Xiong Liu, Ajit R. Godbole, Cheng Lu, Guillaume Michal, Valerie M. Linton

Faculty of Engineering and Information Sciences - Papers: Part B

This paper describes the experimental investigation and Computational Fluid Dynamics (CFD) simulations of the dispersion of CO2 following high-pressure dense phase CO2 pipeline failure. A full-scale burst test was carried out to simulate a CO2 pipeline failure in the real world. The atmospheric dispersion of the CO2 following the explosive release was measured. The CFD models were validated against the experimental data. The models were then used to estimate the consequence distances related to CO2 dispersion following failure of pipelines with various diameters under different wind speeds. This approach provides a predictive formula for the consequence distances of CO2 transmission ...


Treatment And Evolution Of Digital Rights: A Comparative Analysis Of China, Russia, The United States, And Germany, Karina Barbesino 2019 Rollins College

Treatment And Evolution Of Digital Rights: A Comparative Analysis Of China, Russia, The United States, And Germany, Karina Barbesino

Honors Program Theses

The internet and digital technologies allow for the recognition, advocation, and protection of human rights. People around the world have access to faster and exponentially more information than ever before. The possibilities for education, politics, healthcare, work, and equality have greatly expanded. The internet provides new opportunities for the progression of humanity, but not without a cost. The transformative power of the internet to both empower and infringe on human rights has not been lost on states. As a relatively new domain, the policies in cyberspace remain in their trial periods. Each state is implementing, redacting, and implementing again policies ...


Comparison Of Butyric Acid Leaching Behaviors Of Zinc From Three Basic Oxygen Steelmaking Filter Cakes, Jingxiu Wang, Zhe Wang, Zhongzhi Zhang, Guangqing Zhang 2019 University of Wollongong

Comparison Of Butyric Acid Leaching Behaviors Of Zinc From Three Basic Oxygen Steelmaking Filter Cakes, Jingxiu Wang, Zhe Wang, Zhongzhi Zhang, Guangqing Zhang

Faculty of Engineering and Information Sciences - Papers: Part B

The selective leaching of zinc from three different basic oxygen steelmaking (BOS) filter cakes by butyric acid was investigated to compare the leaching behaviors of zinc and further to establish the correlation of the zinc leaching performances and the chemical compositions. The effects of acid concentration and the acid to solid (L/S) stoichiometric ratio were studied, with different optimal leaching conditions obtained. BOS-1 showed the lowest leachability with only less than 10% of zinc removed by 0.5 M acid concentration and 90% of the L/S stoichiometric ratio in 10 h. The best zinc selectivity was achieved with ...


Time Series Analysis Of Online Public Opinions In Colleges And Universities And Its Sustainability, Wei He, Yuan Fang, Reza Malekian, Zhixiong Li 2019 Minjiang University

Time Series Analysis Of Online Public Opinions In Colleges And Universities And Its Sustainability, Wei He, Yuan Fang, Reza Malekian, Zhixiong Li

Faculty of Engineering and Information Sciences - Papers: Part B

With the quick penetration of Internet applications, online media have become an important carrier of public opinions. The opinions and comments expressed by young college students-one of the most active netizen groups-on the Internet have turned out to be an essential part of the online public opinions in colleges and universities. However, the existing systems generally employ simple statistical methods to analyze the effect of online public opinions on the image and reputation development of colleges and universities without taking account of other factors, such as the hotness characteristics of online public opinions and semantic information. Therefore, on the basis ...


Removal Of Hg(Ii) In Aqueous Solutions Through Physical And Chemical Adsorption Principles, Mengdan Xia, Zhixin Chen, Yao Li, Chuanhua Li, Nasir M. Ahmad, Waqas A. Cheema, Shenmin Zhu 2019 Shanghai Jiao Tong University

Removal Of Hg(Ii) In Aqueous Solutions Through Physical And Chemical Adsorption Principles, Mengdan Xia, Zhixin Chen, Yao Li, Chuanhua Li, Nasir M. Ahmad, Waqas A. Cheema, Shenmin Zhu

Faculty of Engineering and Information Sciences - Papers: Part B

Adsorption has been the focus of research on the treatment of heavy metal mercury pollution since it is among the most toxic heavy metals in existence. The US EPA has set a mandatory discharge limit of 10 μg Hg L-1 for wastewater and for drinking water a maximum accepted concentration of 1 μg Hg L-1. Physical adsorption and chemical adsorption are the two major mechanisms of adsorption methods used for mercury removal in aqueous sources. The recent decades' research progress is reviewed to elaborate varieties of adsorption materials ranging from materials with large surface area for physical adsorption ...


Comparison Of The Mineralogy Of Iron Ore Sinters Using A Range Of Techniques, Tom Honeyands, James Manuel, Leanne Matthews, Damien O'Dea, David J. Pinson, J Leedham, Guangqing Zhang, Huibin Li, Brian J. Monaghan, Xinliang Liu, Eugene Donskoi, Nathan A.S. Webster, Mark Pownceby 2019 University of Newcastle

Comparison Of The Mineralogy Of Iron Ore Sinters Using A Range Of Techniques, Tom Honeyands, James Manuel, Leanne Matthews, Damien O'Dea, David J. Pinson, J Leedham, Guangqing Zhang, Huibin Li, Brian J. Monaghan, Xinliang Liu, Eugene Donskoi, Nathan A.S. Webster, Mark Pownceby

Faculty of Engineering and Information Sciences - Papers: Part B

Many different approaches have been used in the past to characterise iron ore sinter mineralogy to predict sinter quality and elucidate the impacts of iron ore characteristics and process variables on the mechanisms of sintering. This paper compares the mineralogy of three sinter samples with binary basicities (mass ratio of CaO/SiO2) between 1.7 and 2.0. The measurement techniques used were optical image analysis and point counting (PC), quantitative X‐ray diffraction (QXRD) and two different scanning electron microscopy systems, namely, Quantitative Evaluation of Materials by Scanning Electron Microscopy (QEMSCAN) and TESCAN Integrated Mineral Analyser (TIMA). Each ...


In Situ Characterisation Of Mns Precipitation In High Carbon Steel, Yasuhiro Tanaka, Farshid Pahlevani, Suk Chun Moon, Rian J. Dippenaar, Veena Sahajwalla 2019 University of New South Wales, Nippon Steel Corporation

In Situ Characterisation Of Mns Precipitation In High Carbon Steel, Yasuhiro Tanaka, Farshid Pahlevani, Suk Chun Moon, Rian J. Dippenaar, Veena Sahajwalla

Faculty of Engineering and Information Sciences - Papers: Part B

Manganese sulphide (MnS) is one of the major non-metallic inclusions in steel with huge impact on steel property. In the case of high carbon steel, due to higher sulphur content and its brittleness, controlling MnS formation is one of the main issues. MnS has a complicated precipitation mechanism during solidification in liquid and solid steel and at the interface with oxide inclusions. Higher sulphur content, lower melting point and different oxide inclusions in high carbon steel will cause MnS precipitation at different stages. In this study, different stages of MnS precipitation from liquid and/or solid in high carbon steel ...


A New Method For Direct Tensile Testing Of Concrete, Faez Alhussainy, Hayder Alaa Hasan, M Neaz Sheikh, Muhammad N. S Hadi 2019 University of Wollongong

A New Method For Direct Tensile Testing Of Concrete, Faez Alhussainy, Hayder Alaa Hasan, M Neaz Sheikh, Muhammad N. S Hadi

Faculty of Engineering and Information Sciences - Papers: Part B

Different testing methods were used in previous studies to measure the direct tensile strength of concrete. However, these methods experienced several major deficiencies such as stress concentration at the end of the specimens because of inadequate gripping and loading eccentricity and nonuniform fracture plane because of difficulties in aligning and centering the specimens during testing. This study presents the details of a new method of testing concrete under uniaxial tension. The method was developed to overcome the difficulties associated with testing methods adopted in the previous research studies. A full description of the wooden molds used in casting the specimens ...


Minimal Hypersurfaces In The Ball With Free Boundary, Glen Wheeler, V.-M Wheeler 2019 University of Wollongong

Minimal Hypersurfaces In The Ball With Free Boundary, Glen Wheeler, V.-M Wheeler

Faculty of Engineering and Information Sciences - Papers: Part B

In this note we use the strong maximum principle and integral estimates prove two results on minimal hypersurfaces F:Mn→Rn+1 with free boundary on the standard unit sphere. First we show that if F is graphical with respect to any Killing field, then F(Mn) is a flat disk. This result is independent of the topology or number or boundaries. Second, if Mn=Dn is a disk, we show the supremum of the curvature squared on the interior is bounded below by n times the infimum of the curvature on the boundary. These may be combined the give ...


Grain Boundary Induced Deformation Mechanisms In Nanocrystalline Al By Molecular Dynamics Simulation: From Interatomic Potential Perspective, Liang Zhang, Yasushi Shibuta, Xiaoxu Huang, Cheng Lu, Mao Liu 2019 University of Tokyo

Grain Boundary Induced Deformation Mechanisms In Nanocrystalline Al By Molecular Dynamics Simulation: From Interatomic Potential Perspective, Liang Zhang, Yasushi Shibuta, Xiaoxu Huang, Cheng Lu, Mao Liu

Faculty of Engineering and Information Sciences - Papers: Part B

Nanocrystalline metals exhibit many excellent mechanical properties and their underlying deformation mechanisms have been studying widespread. The well-designed atomistic simulations can predict the mechanical behavior of materials ahead of experiments and provide sufficient information on the atomic scale. The choice of appropriate interatomic potential is one of the main concerns of any atomistic simulation that needs to be seriously considered in order to obtain reliable results. In this study, we investigated the mechanical response and the deformation mechanisms of nanocrystalline Al under uniaxial loading by molecular dynamics (MD) simulations with different embedded atom method (EAM) interatomic potentials. The selection of ...


On Tetragonality Of The Martensite Crystal Lattice In Steels, V Lobodyuk, Yu Ya Meshkov, Elena V. Pereloma 2019 National Academy of Sciences of Ukraine

On Tetragonality Of The Martensite Crystal Lattice In Steels, V Lobodyuk, Yu Ya Meshkov, Elena V. Pereloma

Faculty of Engineering and Information Sciences - Papers: Part B

This article addresses the pseudo-tetragonal nature of the crystal lattice of martensite in carbon-containing steels. It is proposed that the periodic distortion of c-cube edges by the presence of carbon atoms is better reflected in the root-mean-square distortions of martensite lattice than by the value of doublet splitting of the corresponding X-ray reflections of the martensite crystal.


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