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1701
Off-centering of Ge atoms in GeBi2Te4 and impact on thermoelectric performance
Published 2024“…This research provides valuable insights into the crystal structure and transport properties of GeBi2Te4, showcasing its promising role as a thermoelectric material with potential for near-room-temperature applications.…”
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Journal Article -
1702
Optical and optoelectronic properties of Si nanocrystals embedded in dielectric matrix
Published 2009“…Based on the knowledge of band structure of nc-Si obtained in this work, the size-dependent PL band could be attributed to the indirect band-to-band transition of the nc-Si assisted by the Si-O vibration at the interface of nc-Si/SiO2. Visible and near infrared (IR) electroluminescence (EL) has been observed from a metal–oxide–semiconductor-like (MOS-like) structure with nc-Si embedded in the gate oxide. …”
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Thesis -
1703
Electrical and optoelectronic studies of semiconductor nanostructures
Published 2012“…The ARC is optimized so that it has a very low reflectance in the visible and near-infrared regions and a weak dependence on the incident angle. …”
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Thesis -
1704
Surface plasmon resonance (SPR) enhanced biosensors
Published 2016“…Surface plasmons are commonly excited by external electromagnetic radiation and a common feature of plasmons are that they concentrate the field to the near surface region, and can thus be used to enhance extinction, fluorescent, Raman and other signals. …”
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Thesis -
1705
Pulse frequency modulation based tri-mode controller for switched-mode DC-DC converters
Published 2016“…Despite the varying switching-frequency, the proposed controller with the PID compensator has an excellent frequency response of a near-constant phase margin of ~67° and a maximum voltage-overshoot of only 5.6%. …”
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Thesis -
1706
Genome-wide mapping of Hif-1α binding sites in zebrafish
Published 2015“…Whether these sites are functional remains unknown, nevertheless their frequent location near transcriptional start sites suggests functionality, and will allow for investigation into the potential hypoxic regulation of genes in their vicinity. …”
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Journal Article -
1707
Coupled acoustic resonator systems with novel acoustic properties
Published 2021“…The acoustic transmission spectra for different strain strengths have been measured, which exhibit transmission gaps near the Dirac frequency due to the formation of acoustic Landau levels. …”
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Thesis-Doctor of Philosophy -
1708
Non-contact laser-ultrasonic subsurface thermography using waveform inversion
Published 2022“…A strategy of using multiple central frequencies for joint inversion is proved to be useful due to its larger reconstruction depth and higher accuracy in the near-surface region.…”
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Thesis-Doctor of Philosophy -
1709
Tunable metasurfaces for active nanophotonics
Published 2023“…In addition, we experimentally showed tunable light sources based on the amplified spontaneous emission concept in visible and near-infrared regimes by designing two different tunable metasurfaces that support the bound states in the continuum resonance. …”
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Thesis-Doctor of Philosophy -
1710
Upcycling of non-biodegradable plastics by base metal photocatalysis
Published 2023“…In addition, the latest efforts in the photochemical upcycling of plastics near ambient temperatures are mainly restricted to polystyrene. …”
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Journal Article -
1711
Constraint satisfaction approach to product configuration with cost estimation
Published 2013“…Due to the dynamism and heterogeneity of today’s markets, mass customization has been widely applied in the manufacturing industry with the objective of satisfying individual customer needs while maintaining near mass production efficiency. Product family design is an effective approach for mass customization where problem modeling and solution are two significant concerns. …”
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Thesis -
1712
Perfect- and quasi- complementary sequences
Published 2014“…In addition, constructions of optimal and near-optimal periodic LC-CSSs (with respect to a derived lower bound) are proposed for the first time by applying linear-phase transform (modulated by Singer difference sets) to optimal quadriphase sequence sets. …”
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Thesis -
1713
Electronic structures of twisted two-dimensional materials studied by angle-resolved photoemission spectroscopy
Published 2021“…Using high-resolution ARPES, we have confirmed the co-existence of heavy and light hole-bands near the valence band maximum, which is favorable for maintaining the large Seebeck coefficient and the good electrical conductivity simultaneously. …”
Thesis -
1714
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1715
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1716
Block-encoding dense and full-rank kernels using hierarchical matrices: applications in quantum numerical linear algebra
Published 2024“…When applied to many physical kernel matrices, our method can improve the runtime of solving quantum linear systems of dimension <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>N</mml:mi></mml:math> to <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>O</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>&#x03BA;</mml:mi><mml:mi>polylog</mml:mi><mml:mo>&#x2061;</mml:mo><mml:mo stretchy="false">(</mml:mo><mml:mfrac><mml:mi>N</mml:mi><mml:mi>&#x03B5;</mml:mi></mml:mfrac><mml:mo stretchy="false">)</mml:mo><mml:mo stretchy="false">)</mml:mo></mml:math>, where <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>&#x03BA;</mml:mi></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>&#x03B5;</mml:mi></mml:math> are the condition number and error bound of the matrix operation. This runtime is near-optimal and, in terms of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>N</mml:mi></mml:math>, exponentially improves over prior quantum linear systems algorithms in the case of dense and full-rank kernel matrices. …”
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Article -
1717
Storage and eruption of silicic magma across the transition from dominantly effusive to caldera-forming states at an arc volcano (Santorini, Greece)
Published 2019“…We analysed textures, zoning patterns, trace element compositions, and crystal residence timescales calculated at pre-eruptive conditions (near-liquidus residence timescales; NLRT) of plagioclase and orthopyroxene phenocrysts from two eruptive units on Santorini: an ∼2 km3 sequence of dacitic lavas erupted between 39 and 25 ka (the Therasia dome complex), and a caldera-forming dacitic eruption that occurred no more than 2800 ± 1400 years after the last Therasia lava (the 21·8 ka, >10 km3 Cape Riva eruption). …”
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Journal Article -
1718
Adaptive modulation and subcarrier allocation for multiuser OFDM/CDMA systems
Published 2008“…The comparisons of the OFDM/CDMA, OFDM Interleaved-FDMA and OFDM Group-FDMA have been analyzed for the data transmission. Because of the near-unity reuse factor, one of the important merits of CDMA, the combination of OFDM and CDMA, known as OFDM/CDMA, brings substantial increase in the transmission data rate per unit bandwidth when the frequency resources are limited. …”
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Thesis -
1719
Modelling and characterization of membrane fouling in osmotically-driven membrane processes (ODMPs)
Published 2021“…By contrast, the frequency components are kept nearly unchanged on AL-FS mode in which no internal fouling occurs. …”
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Thesis-Doctor of Philosophy -
1720
Dimensionality-dependent type-II Weyl semimetal state in Mo₀.₂₅W₀.₇₅Te₂
Published 2022“…Recently, Mo$_{0.25}$W$_{0.75}$Te$_{2}$ has been established as a type-II WSM with Weyl points located near Fermi level, which offers an opportunity to study its intriguing band structure by electrical transport measurements. …”
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Journal Article