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2015

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Strategies To Enhance Learning In A Large Engineering Economics Course: Including Students’ Perceived Values In The Instructional Redesign Process, Kellie S. Grasman, D. Cernusca Jan 2015

Strategies To Enhance Learning In A Large Engineering Economics Course: Including Students’ Perceived Values In The Instructional Redesign Process, Kellie S. Grasman, D. Cernusca

Engineering Management and Systems Engineering Faculty Research & Creative Works

Purposeful implementation of technology in instructional design presents opportunities to increase institutional efficiency while simultaneously improving instructional quality. This paper presents findings from the implementation of a hybrid/buffet approach in an undergraduate Engineering Economics large course. A Design-Based Research (DBR) approach informed the instructional redesign and measured its effectiveness through multiple iterations, or macro-cycles, of implementation. Overall, pedagogical structure and specific technology solutions applied to each course component are described, as well as preliminary measures of effectiveness and student perception from a pilot offering of the hybrid/buffet course. Encouraged by positive preliminary results, a second implementation informed further study of …

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Sensing Performance Study Of Sic, A Wide Bandgap Semiconductor Material Platform For Surface Plasmon Resonance Sensor, Wei Du, Feng Zhao Jan 2015

Sensing Performance Study Of Sic, A Wide Bandgap Semiconductor Material Platform For Surface Plasmon Resonance Sensor, Wei Du, Feng Zhao

Electrical and Computer Engineering Faculty Research & Creative Works

The sensing properties of a surface plasmon resonance (SPR) based waveguide sensor on a wide bandgap semiconductor, silicon carbide (SiC), were studied. Compared to other waveguide sensors, the large bandgap energy of SiC material allows the sensor to operate in the visible and near infrared wavelength range, while the SPR effect by a thin gold film is expected to improve the sensitivity. The confinement factor of the sensor at various wavelengths of the incident light and refractive index of the analyte were investigated using an effective index method. Since the change of analyte type and concentration is reflected by the …

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Investigation Of Thermoelectric Properties Of P-Type Gan Thin Films, Bahadir Kucukgok, Babar Hussain, Chuanle Zhou, Ian T. Ferguson, Na Lu Jan 2015

Investigation Of Thermoelectric Properties Of P-Type Gan Thin Films, Bahadir Kucukgok, Babar Hussain, Chuanle Zhou, Ian T. Ferguson, Na Lu

Electrical and Computer Engineering Faculty Research & Creative Works

GaN and its alloys are promising candidates for high temperature thermoelectric (TE) materials due to their high Seebeck coefficient and high thermal and mechanical stability. Moreover, these materials can overcome the toxicity concern of current Te-based TE materials, such as BI2Te3 and PbTe. These materials have recently shown a higher Seebeck coefficient than that of SiGe in high temperature region because their large bandgap characteristic eliminates the bipolar conduction. In this study, we report the room temperature thermoelectric properties of p-type Mg doped GaN, grown by metalorganic chemical vapor deposition (MOCVD) on sapphire substrate with various carrier …

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Linear Precoding For The Mimo Multiple Access Channel With Finite Alphabet Inputs And Statistical Csi, Yongpeng Wu, Chao Kai Wen, Chengshan Xiao, Xiqi Gao, Robert Schober Jan 2015

Linear Precoding For The Mimo Multiple Access Channel With Finite Alphabet Inputs And Statistical Csi, Yongpeng Wu, Chao Kai Wen, Chengshan Xiao, Xiqi Gao, Robert Schober

Electrical and Computer Engineering Faculty Research & Creative Works

In this paper, we investigate the design of linear precoders for the multiple-input-multiple-output (MIMO) multiple access channel (MAC). We assume that statistical channel state information (CSI) is available at the transmitters and consider the problem under the practical finite alphabet input assumption. First, we derive an asymptotic (in the large system limit) expression for the weighted sum rate (WSR) of the MIMO MAC with finite alphabet inputs and Weichselberger's MIMO channel model. Subsequently, we obtain the optimal structures of the linear precoders of the users maximizing the asymptotic WSR and an iterative algorithm for determining the precoders. We show that …

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Detection, Identification And Localization Of R/C Electronic Devices Through Their Unintended Emissions, Vivek Thotla Jan 2015

Detection, Identification And Localization Of R/C Electronic Devices Through Their Unintended Emissions, Vivek Thotla

Doctoral Dissertations

"The accurate and reliable detection of unintended emissions from radio receivers has a broad range of commercial and security applications. This thesis presents detection, identification, and localization methods for multiple RC electronic devices in a realistic environment. First, a Hurst parameter based detection method for super-regenerative receivers (SRR) has been used for detection. Hurst parameter based detection method exploits a self-similarity property of the SRR receiver emissions to distinguish it from background noise. Second paper presents a novel detection and localization scheme of multiple RC electronic devices called Edge-Synthetic Aperture Radar (Edge-SAR). It employs cost-effective, mobile antenna-array detectors. Two types …

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Nano-Structured Materials For Energy Storage Applications, Dongxue Zhao Jan 2015

Nano-Structured Materials For Energy Storage Applications, Dongxue Zhao

Doctoral Dissertations

"Hydrogen is a non-polluting and efficient energy carrier. One barrier to utilizing hydrogen is a reliable storage method. NaAlH4 is the prototypical example of a complex metal hydride with high hydrogen storage capacities (~ 5.5 wt.%) and acceptable reaction temperatures of around 100⁰ when using catalyst. On decomposition of these complex hydrides, such as NaAlH4, one is left with monohydride NaH. The kinetics of diffusion in the monohydrides is important because reversibility hinges on mass transport and the formation of [AlH4]- anions that must structurally coordinate with the alkali metal cation on hydrogen absorption. …

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Sex And The Shari’A: Defining Gender Norms And Sexual Deviancy In Shi’I Islam, Haider Ala Hamoudi Jan 2015

Sex And The Shari’A: Defining Gender Norms And Sexual Deviancy In Shi’I Islam, Haider Ala Hamoudi

Fordham International Law Journal

This Article demonstrates that modern authoritative jurists working within the Shi’i tradition have developed their rules respecting sex regulation in order to serve three primary commitments. The first commitment is less a normative expectation and more a presumption of reality. It is that there is an intense and near debilitating desire on the part of human beings generally, though mostly men, for a great deal of sex. This desire must be satisfied, but it also must be tightly controlled. This is because of the second commitment, which is that excessive licentiousness is a form of secular distraction from a believer’s …

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Big Data -- A 21st Century Science Maginot Line? No-Boundary Thinking: Shifting From The Big Data Paradigm, Xiuzhen Huang, Steven F. Jennings, Barry Bruce, Alison Buchan, Liming Cai, Pengyin Chen, Carole Cramer, Weihua Guan, Uwe Kk Hilgert, Hongmei Jiang, Zenglu Li, Gail Mcclure, Donald F. Mcmullen, Bindu Nanduri, Andy Perkins, Bhanu Rekepalli, Saeed Salem, Jennifer Specker, Karl Walker, Donald C. Wunsch, Donghai Xiong, Shuzhong Zhang, Yu Zhang, Zhongming Zhao, Jason H. Moore Jan 2015

Big Data -- A 21st Century Science Maginot Line? No-Boundary Thinking: Shifting From The Big Data Paradigm, Xiuzhen Huang, Steven F. Jennings, Barry Bruce, Alison Buchan, Liming Cai, Pengyin Chen, Carole Cramer, Weihua Guan, Uwe Kk Hilgert, Hongmei Jiang, Zenglu Li, Gail Mcclure, Donald F. Mcmullen, Bindu Nanduri, Andy Perkins, Bhanu Rekepalli, Saeed Salem, Jennifer Specker, Karl Walker, Donald C. Wunsch, Donghai Xiong, Shuzhong Zhang, Yu Zhang, Zhongming Zhao, Jason H. Moore

Electrical and Computer Engineering Faculty Research & Creative Works

Whether your interests lie in scientific arenas, the corporate world, or in government, you have certainly heard the praises of big data: Big data will give you new insights, allow you to become more efficient, and/or will solve your problems. While big data has had some outstanding successes, many are now beginning to see that it is not the Silver Bullet that it has been touted to be. Here our main concern is the overall impact of big data; the current manifestation of big data is constructing a Maginot Line in science in the 21st century. Big data is not …

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Agency And Partnership Law [2014], Pearlie M. C. Koh, Stephen Noel Henry Bull Jan 2015

Agency And Partnership Law [2014], Pearlie M. C. Koh, Stephen Noel Henry Bull

Research Collection Yong Pung How School Of Law

No abstract provided.

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The Future Of International Mediated Settlement Agreements: Of Conventions, Challenges And Choices, Eunice Chua Jan 2015

The Future Of International Mediated Settlement Agreements: Of Conventions, Challenges And Choices, Eunice Chua

Research Collection Yong Pung How School Of Law

In 2002, UNCITRAL developed the Model Law on International Commercial Conciliation.1 Although at that stage there was a strong effort to develop a uniform enforcement mechanism, the ultimate conclusion was that because of the great variance in the technicalities of domestic procedural laws, harmonisation by way of uniform legislation was not feasible (UNCITRAL 2004: 55). Eventually, Article 15 merely provided that: If the parties reach and sign an agreement settling a dispute, that settlement agreement is binding and enforceable … [the enacting State inserts a description of the method of enforcing settlements agreements or refers to provisions governing such enforcement].

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Landlord’S Liability For Tenant’S Nuisance: Uksc Clarifies The Law In Lawrence V Fen Tigers (No. 2), Kee Yang Low Jan 2015

Landlord’S Liability For Tenant’S Nuisance: Uksc Clarifies The Law In Lawrence V Fen Tigers (No. 2), Kee Yang Low

Research Collection Yong Pung How School Of Law

Where an occupier of premises creates or causes a nuisance and affects his neighbour’s enjoyment of land, the neighbour may sue him under the tort of nuisance. Where the occupier is a tenant, the neighbour may also have recourse to the landlord. This area of law, however, has not been the subject of rigorous judicial analysis and appears to be still lacking in clarity, precision and sophistication. The position prior to the UKSC decision in Lawrence and another v Fen Tigers Ltd and others (No. 2),1 (“Lawrence”) as discerned by the authors of Markesinis & Deakin’s Tort Law2 is that, …

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Genome-Wide Scans Detect Adaptation To Aridity In A Widespread Forest Tree Species, Dorothy A. Steane, Brad M. Potts, Elizabeth Mcclean, Suzanne M. Prober, William D. Stock, René E. Vaillancourt, Margaret Byrne Jan 2015

Genome-Wide Scans Detect Adaptation To Aridity In A Widespread Forest Tree Species, Dorothy A. Steane, Brad M. Potts, Elizabeth Mcclean, Suzanne M. Prober, William D. Stock, René E. Vaillancourt, Margaret Byrne

Research Datasets

Patterns of adaptive variation within plant species are best studied through common garden experiments, but these are costly and time-consuming, especially for trees that have long generation times. We explored whether genome-wide scanning technology combined with outlier marker detection could be used to detect adaptation to climate and provide an alternative to common garden experiments. As a case study, we sampled nine provenances of the widespread forest tree species, Eucalyptus tricarpa, across an aridity gradient in southeastern Australia. Using a Bayesian analysis we identified a suite of 94 putatively adaptive (outlying) sequence-tagged markers across the genome. Population-level allele frequencies of …

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Mode-Multiplexed Transmission Over Conventional Graded-Index Multimode Fibers, Roland Ryf, Nicolas K. Fontaine, H. Chen, B. Guan, B. Huang, Mina Esmaeelpour Jan 2015

Mode-Multiplexed Transmission Over Conventional Graded-Index Multimode Fibers, Roland Ryf, Nicolas K. Fontaine, H. Chen, B. Guan, B. Huang, Mina Esmaeelpour

Electrical and Computer Engineering Faculty Research & Creative Works

We present experimental results for combined mode-multiplexed and wavelength multiplexed transmission over conventional graded-index multimode fibers. We use mode-selective photonic lanterns as mode couplers to precisely excite a subset of the modes of the multimode fiber and additionally to compensate for the differential group delay between the excited modes. Spatial mode filters are added to suppress undesired higher order modes. We transmit 30-Gbaud QPSK signals over 60 WDM channels, 3 spatial modes, and 2 polarizations, reaching a distance of 310 km based on a 44.3 km long span. We also report about transmission experiments over 6 spatial modes for a …

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'In The Interests Of Justice' As The New Test To Exclude Relevant Evidence In Singapore: Anb V Anc [2014] Sghc 172; Wan Lai Ting V Kea Kah Kim [2014] Sghc 180, Siyuan Chen Jan 2015

'In The Interests Of Justice' As The New Test To Exclude Relevant Evidence In Singapore: Anb V Anc [2014] Sghc 172; Wan Lai Ting V Kea Kah Kim [2014] Sghc 180, Siyuan Chen

Research Collection Yong Pung How School Of Law

In 2012, Singapore’s venerable Evidence Act (EA), which is based on Stephen’s Indian Evidence Act of 1872, underwent major amendments for only the third time in 120 years. Previously, conflicting case law had created long-standing confusion as to whether the Singapore courts possessed any discretion to exclude evidence even when was found relevant under the EA. The main reason driving this jurisprudential inconsistency was that while the relevancy provisions in the EA were meant to provide exhaustive definitions of admissibility, Stephen’s then-revolutionary ‘inclusionary’ approach to relevance was simply at odds with modern conceptions of relevance and modern litigation practice. Thus, …

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China's Ip Protection Minefield: Separating Fact From Fiction, David Llewelyn, Peter J. Williamson Jan 2015

China's Ip Protection Minefield: Separating Fact From Fiction, David Llewelyn, Peter J. Williamson

Research Collection Yong Pung How School Of Law

China is the key emerging market for international technology companies. Smart, well-informed IP and business strategies are required if companies are to make the most of what the country has to offer.

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The Enigma Of Veil-Piercing, Pey Woan Lee Jan 2015

The Enigma Of Veil-Piercing, Pey Woan Lee

Research Collection Yong Pung How School Of Law

In Prest v Petrodel Resources Ltd [2013] 3 WLR 1, Lord Sumption narrowly confined veil-piercing at common law to those cases where a controller had used a company under his control to evade a pre-existing legal liability. This article argues against this approach as it is so narrow that it practically abolished the jurisdiction. Instead, the jurisdiction should be preserved, and its exercise should be constrained by clearly articulated principles.

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Equality And Singapore’S First Constitutional Challenges To The Criminalization Of Male Homosexual Conduct, Jack Tsen-Ta Lee Jan 2015

Equality And Singapore’S First Constitutional Challenges To The Criminalization Of Male Homosexual Conduct, Jack Tsen-Ta Lee

Research Collection Yong Pung How School Of Law

In 2013, i Lim Meng Suang and Kenneth Chee Mun-Leon v Attorney-General and Tan Eng Hong v Attorney-General, the High Court of Singapore delivered the first judgments in the jurisdiction considering the constitutionality of section 377A of the Penal Code, which criminalizes acts of gross indecency between two men, whether they occur in public or private. The Court ruled that the provision was not inconsistent with the guarantees of equality before the law and equal protection of the law stated in Article 12(1) of the Constitution of the Republic of Singapore. The result was upheld in 2014 by the Court …

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Re-Assessing The Evidentiary Regime Of The International Court Of Justice: A Case For Codifying Its Discretion To Exclude Evidence, Siyuan Chen Jan 2015

Re-Assessing The Evidentiary Regime Of The International Court Of Justice: A Case For Codifying Its Discretion To Exclude Evidence, Siyuan Chen

Research Collection Yong Pung How School Of Law

Like many international tribunals, the International Court of Justice subscribes heavily to the principle of free admissibility of evidence. Neither its statute nor rules impose substantive restrictions on the admissibility of evidence, whether by way of exclusionary rules or an exclusionary discretion. Instead, the court’s practice has been to focus on evaluating and weighing the evidence after it has been admitted. There are certainly features of the ICJ that sets it apart from domestic courts and arguably justify such an approach: the ICJ is for settling disputes between sovereign states; it does not use a typical fact-finding system; its rules …

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The European Union’S Potential Contribution To Protect Marine Biodiversity In The Changing Arctic: A Roadmap, Nengye Liu, Elizabeth Kirk Jan 2015

The European Union’S Potential Contribution To Protect Marine Biodiversity In The Changing Arctic: A Roadmap, Nengye Liu, Elizabeth Kirk

Research Collection Yong Pung How School Of Law

This article provides a roadmap for possible European Union (eu) action in the protection of marine biodiversity in the changing Arctic. First the eu’s competence in the Arctic is briefly introduced. Then the discussion turns to the eu’s potential external and internal actions in shipping, fisheries and offshore oil and gas operations that could possibly enhance the international legal regime for the protection of marine biodiversity in the Arctic. The eu’s role vis-à-vis the global biodiversity regime and cross-cutting measures under the United Nations Convention on the Law of the Sea are discussed together in the final part.

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One-Dimensional Triple Periodic Dual-Beam Microstrip Leaky-Wave Antenna, Zi Long Ma, Li (Lijun) Jun Jiang Jan 2015

One-Dimensional Triple Periodic Dual-Beam Microstrip Leaky-Wave Antenna, Zi Long Ma, Li (Lijun) Jun Jiang

Electrical and Computer Engineering Faculty Research & Creative Works

In this letter, a novel dual-beam microstrip leaky-wave antenna based on one-dimensional triple periodic (TP) structure is proposed. Through theoretical dispersion relation analysis, it is found that compared to the conventional periodic structure, TP structure has reduced the separation of space harmonics. Hence, more space harmonic modes are brought into the leaky-wave radiation region. Through proper design, m = - 1 and m = - 2 modes are excited simultaneously. Consequently, the forward and backward propagation waves of these two modes generate two radiation beams in the far-field region. At different frequencies, symmetrical and asymmetrical beam pairs are realized. It …

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Efficient Calculation Of Large Finite Periodic Structures Based On Surface Wave Analysis, Xiaoyan Y.Z. Xiong, Ling Ling Meng, Li (Lijun) Jun Jiang, Wei E.I. Sha, Fan Yang Jan 2015

Efficient Calculation Of Large Finite Periodic Structures Based On Surface Wave Analysis, Xiaoyan Y.Z. Xiong, Ling Ling Meng, Li (Lijun) Jun Jiang, Wei E.I. Sha, Fan Yang

Electrical and Computer Engineering Faculty Research & Creative Works

The electromagnetic modeling of practical finite periodic structures is a topic of growing interest. Due to the truncation of infinite periodic structures, surface waves will be excited and localized near discontinuous interfaces leading to the edge effect. In this work, surface waves are numerically extracted and their magnitudes and decay rates are analyzed for different materials and geometries. Based on the exponential decay of the surface wave, a novel method is developed by connecting the solution to the large finite array problem with that to a relatively small one to achieve low complexity and memory consumption. The method numerically reconstructs …

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Dispersion Characteristics Analysis Of One Dimensional Multiple Periodic Structures And Their Applications To Antennas, Zi Long Ma, Li (Lijun) Jun Jiang, Shulabh Gupta, Wei E.I. Sha Jan 2015

Dispersion Characteristics Analysis Of One Dimensional Multiple Periodic Structures And Their Applications To Antennas, Zi Long Ma, Li (Lijun) Jun Jiang, Shulabh Gupta, Wei E.I. Sha

Electrical and Computer Engineering Faculty Research & Creative Works

This paper proposes a general characterization of one dimensional multiple periodic (MP) structures for electromagnetic transmission and radiation. Studies are conducted from three aspects: Firstly, the dispersion relations of non-dispersive (conventional) and dispersive (composite right/left-handed (CRLH)) materials are analyzed. Regarding each category of materials, detailed analyses for distributed layered media and lumped circuits are presented. Through studies, we found that the periodicity increase opens up multiple stopbands. According to our physical explanations and numerical results, the relation between stopbands and periodicity is clarified. Additionally, the periodicity increase also reduces the separation distance of space harmonic modes along the phase constant …

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