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141
Memory Checking Requires Logarithmic Overhead
Published 2025“…We study the complexity of memory checkers with computational security and prove the first general tight lower bound. …”
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Article -
142
B-twisted Gaiotto–Witten theory and topological quantum field theory
Published 2025“…The physical theories we model admit alternative realizations as Chern–Simons–Rozansky–Witten theories and supergroup Chern–Simons theories and include as particular examples global forms of <em>gl</em>(1|1)–Chern–Simons theory and toral Chern–Simons theory. …”
Journal article -
143
Theory of Quantum Anomalous Hall Phases in Pentalayer Rhombohedral Graphene Moiré Structures
Published 2024“…Here we show that electron-electron interactions play a crucial role, and present microscopic theoretical calculations demonstrating the emergence of a nearly flat, isolated, Chern-1 band and FQAH phases in this system. We also study the four- and six-layer analogs and identify parameters where a nearly flat isolated Chern-1 band emerges which may be suitable to host FQAH physics.…”
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144
Development of a human-robot cooperative control system
Published 2014“…During the final year of study in the course for the Bachelor’s in Electrical & Electronics Engineering in Nanyang Technological University, the student was assigned to the Final Year Project for Safe Human-Robot Interaction under the supervision of Associate Professor Cheah Chien Chern. The project’s objective was achieved through the use of a Microsoft Kinect depth sensor to monitor the position of a SCARA robot and determine safety actions to be taken by the robot. …”
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Final Year Project (FYP) -
145
Hofstadter Physics and Composite Fermionic Phase in Moiré Systems
Published 2024“…We extend Jain’s composite fermion theory and the Chern-Simons field theory to Moiré TMD systems, proposing the existence of an anomalous composite fermion liquid state at half-filling. …”
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Thesis -
146
SU(3) topological insulators in the honeycomb lattice
Published 2019“…In this paper, we focus on the topological properties of the single-particle band structure, namely, Chern numbers (lattice with periodic boundary conditions) and edge states (lattice with strip geometry) and their connection to time-reversal symmetry and the sublattice symmetry. …”
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Journal Article -
147
Investigation of low temperature wafer bonding using intermediate layer
Published 2008Get full text
Thesis -
148
Enhanced symmetries in minimally-twisted three-dimensional supersymmetric theories
Published 2024“…We demonstrate this in a range of examples, including $N = 4$ Yang-Mills theories and superconformal Chern-Simons theories, describing how the symmetries are implemented at the level of local operators.…”
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149
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150
Development of a learning system for robot control
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Final Year Project (FYP) -
151
Application of low frequency noise in the study of VLSI electromigration
Published 2008Get full text
Thesis -
152
Experimental studies on the behaviour of non_seismically detailed reinforced concrete column
Published 2010“…Post earthquake and experimental research have shown that old reinforced concrete structures which are designed based on non-seismic details are vulnerable to shear failure during earthquakes. Shear failure can lead to a reduction in building lateral strength, change in inelastic deformation mechanism and loss of axial load-carrying capacity. …”
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Final Year Project (FYP) -
153
Probabilistic classification criterion for failure modes of reinforced concrete columns
Published 2022“…The accuracy and applicability of available flexure and shear strength models were scrutinized first to calculate the ratio of shear demand to shear strength (m). …”
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Journal Article -
154
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155
Fundamental Bound on Topological Gap
Published 2024“…Applications of our theory to infrared absorption near topological band inversion, magnetic circular dichroism in Chern insulators, and topological gap in moiré materials are demonstrated.…”
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156
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157
Seismic behavior of reinforced concrete columns with lightly transverse reinforcement
Published 2009“…Shear degradation of a reinforced concrete column leads to a reduction in axial strength of the column. …”
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Final Year Project (FYP) -
158
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160
Design of insulated gate bipolar transistor using novel structure
Published 2008Get full text
Thesis