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chenrs » chenru (Expand Search), whenrs (Expand Search)
cheen » chien (Expand Search), chuen (Expand Search), chern (Expand Search)
cheer » cheers (Expand Search), cher (Expand Search), sheer (Expand Search)
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0-1 Knapsack in Nearly Quadratic Time
Published 2024“…On the upper bound side, currently the fastest algorithm runs in 𝑂e(𝑛 + 𝑤 12/5 max ) time (Chen, Lian, Mao, and Zhang 2023), improving the earlier 𝑂(𝑛 + 𝑤 3 max)-time algorithm by Polak, Rohwedder, and Węgrzycki (2021). …”
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Near Optimal Alphabet-Soundness Tradeoff PCPs
Published 2024“…Our result has the following implications: (1) Near optimal hardness for Quadratic Programming: it is NPhard to approximate the value of a given Boolean Quadratic Program within factor (log) 1− (1) under quasi-polynomial time reductions. …”
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Łojasiewicz inequalities near simple bubble trees
Published 2024“…<br> To prove these results we derive sufficient conditions for Łojasiewicz inequalities to hold near a finite-dimensional submanifold of almost-critical points for suitable functionals on a Hilbert space.…”
Journal article -
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Scalable near identical image and shot detection
Published 2007“…We define two shots to be near-duplicates if they share a large percentage of near-duplicate frames. …”
Conference item -
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Electrically tunable two-dimensional heterojunctions for miniaturized near-infrared spectrometers
Published 2023“…Here, we report a design of a micron-sized near-infrared ultra-miniaturized spectrometer based on two-dimensional van der Waals heterostructure (2D-vdWH). …”
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Journal Article -
29
Performance enhancement and size reduction of near-eye display
Published 2020“…Near-eye display (NED) paved its way in a variety of applications of modern virtual reality (VR). …”
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Thesis-Doctor of Philosophy -
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Retinal projection near-eye displays with Huygens’ metasurfaces
Published 2024“…Most of current commercial near-eye 3D displays use traditional stereoscopic approach to generate the 3D information. …”
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Journal Article -
32
Multi-harmonic scanning near-field optical microscopy
Published 2012“…This thesis focuses on the development of a multi-harmonic scanning near-field optical microscopy (SNOM) system. The system is demonstrated to have the capabilities of improving optical imaging resolution, identifying and reducing artifacts, and achieving near-field tomography. …”
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Thesis -
33
Near bed hydraulics and sediment transport in currents and waves
Published 2008“…The first is a theory on the flow distribution near channel beds and shear stress on the beds. The second topic is an experimental study on the velocity distribution and scour around submerged structures, while the third topic involves large scale physical modeling of seabed sediment motion in the southern waters of Singapore Waters.…”
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Research Report -
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South China Sea Disputes: Nearing a Solution - Or Is It?
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Commentary -
35
Graphene quantum dots assisted exfoliation of atomically-thin 2D materials and as-formed 0D/2D van der Waals heterojunction for HER
Published 2022“…Further, it is shown that the as-formed GQD/MoS2 van der Waals heterojunctions (vdWHs) give enhanced performance for electrocatalysis of hydrogen evolution reaction (HER) owing to the synergistic coupling at the 0D/2D heterojunction, delivering a current density of 10 mA cm−2 at a low overpotential of 160 mV with a small Tafel slope of 56.9 mV dec−1. …”
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Journal Article -
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50 Years of quantum chromodynamics
Published 2024“…When QCD was “discovered” 50 years ago, the idea that quarks could exist, but not be observed, left most physicists unconvinced. …”
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Article -
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Morphology investigation on direct growth ultra-long CNTs by chemical vapour deposition method for high performance HER applications
Published 2022“…The achieved electrochemical HER results displayed that the Ni-foam-CNT-2 exhibited lower overpotential, smallest Tafel slope and lower resistance value of 110 mV, 240 mV/dec and 0.24 Ω respectively. …”
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Journal Article -
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Optimization of Ni–Co–Mn–Sn Heusler alloy composition for near room temperature magnetic cooling
Published 2014“…Interestingly, tuning Co and Mn composition resulted in high maximum entropy change (ΔSmax) of ∼32 J/kg K near room temperature in Ni48Co2Mn38Sn12 alloys. …”
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Journal Article -
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Rapid defect detections of bonded wafer using near infrared polariscope
Published 2017Subjects: Get full text
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Conference Paper -
40
Hybrid lasers and modulator on silicon in the near- and mid-infrared region
Published 2017“…Many photonic components such as the modulator and detector are studied for many years with much improved performances, while a reliable electrically pumped light source is less developed at this stage. …”
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Thesis