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1801
iTD3-CLN: learn to navigate in dynamic scene through Deep Reinforcement Learning
Published 2022“…In contrast to the conventional methods such as the DWA, our approach is found superior in the following ways: no need for prior knowledge of the environment and metric map, lower reliance on an accurate sensor, learning emergent behavior in dynamic scene that is intuitive, and more remarkably, able to transfer to the real robot without further fine-tuning. Our extensive studies show that in comparison to the original TD3, the proposed approach can obtain approximately 50% reduction in training to get same performance, 50% higher accumulated reward, and 30–50% increase in generalization performance when tested in unseen environments. …”
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Journal Article -
1802
PromptChart: prompting InstructGPT for zero & few-shot chart question answering and summarization
Published 2023“…Existing state-of-the-art models rely on fine-tuning strategies and struggle with tasks that involve logical and arithmetic reasoning. …”
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Final Year Project (FYP) -
1803
Experimental and theoretical investigation of failure mechanism in Al2O3SiC composite under plane shock waves
Published 2024“…This paper focused on the dynamic failure and fracture mechanisms of the fine-grained Al2O3/SiC composite subjected to plane shock waves. …”
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Journal Article -
1804
Temperature dependence of elastocaloric effect in a microstructurally graded NiTi alloy
Published 2024“…Detailed analyses show that while the fine grains present in the core of NiTi sheets reduce the global martensitic autocatalytic nucleation potency and increase strength to broaden Tspan, the coarser grains near the surfaces accommodate interlayer deformation to improve |ΔTad|. …”
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Journal Article -
1805
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1806
Development of a real time 3D surgical scene for natural orifice endoscopic surgery
Published 2010“…The final product of this project is being established when feasibility of IGT Navigation System and Data Registration are demonstrated. With fine tuning, it can be applied in relation to “Real Time Three-Dimensional (3D) Surgical Scene for Natural Orifice Endoscopic Surgery”, whereby its needs are closely met.…”
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Final Year Project (FYP) -
1807
Ultra wideBand indoor position localizaiton
Published 2014“…Thus we develop an angle-of-arrival (AOA) cooperative positioning algorithm which takes advantage of high connectivity of wireless networks as well as the fine temporal resolution of UWB technique. Both TDOA and AOA ranging schemes have their own advantages and drawbacks, and thus we propose hybrid methods. …”
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Thesis -
1808
Effect of confining pressure on hysteresis of soil-water characteristic curves
Published 2014“…In this project, river sand specimens of different fine contents (5% and 30% fines) were subjected to multi-cycles of drying and wetting at non-zero net confining pressures using the SWCC Apparatus. …”
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Final Year Project (FYP) -
1809
Cycle-based trading & portfolio management system
Published 2016“…To improve its performance, Evolutionary Algorithms (EA) are applied to fine tune the model’s parameters. In addition, angular coding scheme is used to conquer the problem of limited search space associated with the designing of TSK Fuzzy Rule-Based System with EAs. …”
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Final Year Project (FYP) -
1810
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1811
Pathways of energy transfer in LHCII revealed by room-temperature 2D electronic spectroscopy
Published 2014“…Observing cross-peak regions corresponding to couplings between different excitonic states reveals partially resolved fine structure at the exciton level that cannot be isolated by pump–probe or linear spectroscopy measurements alone. …”
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Journal Article -
1812
Dynamic traction of lattice-confined platinum atoms into mesoporous carbon matrix for hydrogen evolution reaction
Published 2018“…Results of extended x-ray absorption fine structure investigation and density functional theory calculation suggest that the active sites are associated with the lattice-confined Pt centers and the activated carbon (C)/nitrogen (N) atoms at the adjacency of the isolated Pt centers. …”
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Journal Article -
1813
Surface modification of additive manufactured components by ultrasonic cavitation abrasive finishing
Published 2017“…Scanning electron microscopic images revealed that most small-sized partially melted powders were removed through heterogeneous cavitation nucleation on the specimens’ rough initial surface. A secondary fine-scale erosion mechanism by micro-abrasives, accelerated by cavitation bubble collapses, further depressed difficult-to-remove irregularities.…”
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Journal Article -
1814
Visual odometry using RGB-D camera on ceiling vision
Published 2013“…Hence, we can use ICP to fine-tune the transformation parameters and to minimize registration error. …”
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Conference Paper -
1815
Triple boundary multiphase with predictive interleaving technique for switched capacitor DC-DC converter regulation
Published 2015“…The proposed technique avoids these problems by using triple boundary hysteretic control, where one comparator is used for defining the reference voltage, and the other two comparators enable coarse/fine operation to achieve both fast recovery and tight regulation.…”
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Conference Paper -
1816
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1817
Negative density dependence promotes persistence of a globally rare yet locally abundant plant species Oenothera coloradensis
Published 2024“…Consequently, several mechanisms have been proposed to explain their persistence, including negative density dependence, demographic compensation, vital rate buffering, asynchronous responses of subpopulations to environmental heterogeneity, and fine-scale source-sink dynamics. Persistence of seeds in a seed bank, which is often ignored in models of population dynamics, can also buffer small populations against collapse. …”
Journal article -
1818
Cadmium isotope fractionation during adsorption onto calcite
Published 2023“…The enrichment of lighter Cd isotopes may result from highly distorted octahedral Cdsingle bondO6 sites of inner-sphere Cd complexes on calcite, indicated by extended X-ray absorption fine structure (EXAFS). However, near identical coordination environments of the aqueous and sorbed Cd species in the presence of PO43− likely led to the reduced Cd isotope fractionation. …”
Journal article -
1819
Investigating the role of factor inhibiting HIF (FIH) in tumourigenesis
Published 2017“…Factor Inhibiting HIF (FIH), an oxygen-dependent hydroxylase of HIF, inhibits the transcription of selective HIF target genes, and is hence a potential therapeutic target to fine-tune HIF activity. However, how FIH may affect tumourigenesis has not been comprehensively investigated.…”
Thesis -
1820
A driftwood-based record of Arctic sea ice during the last 500 years from northern Svalbard reveals sea ice dynamics in the Arctic Ocean and Arctic peripheral seas
Published 2021“…Provenance and age determinations by dendrochronology and wood anatomy provide insights into Arctic Ocean currents and climatic conditions at a fine spatial resolution, as crossdating with reference chronologies from the circum-Arctic boreal forests enables determination of the watershed the driftwood originated from. …”
Journal article