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501
Compact x-ray source based on burst-mode inverse Compton scattering at 100 kHz
Published 2014“…The accelerator is a novel high-efficiency standing-wave linac and rf photoinjector powered by a single ultrastable rf transmitter at X-band rf frequency. The high efficiency permits operation at repetition rates up to 1 kHz, which is further boosted to 100 kHz by operating with trains of 100 bunches of 100 pC charge, each separated by 5 ns. …”
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Article -
502
Origin of a topotactic reduction effect for superconductivity in infinite-layer nickelates
Published 2024“…X-ray absorption spectroscopy revealed a significant linear dichroism with dominant Ni 3d_{x2-y2} orbitals on superconducting samples, indicating a Ni single-band nature of infinite-layer nickelates. Consistent with the superconducting T_{c}, the Ni 3d orbitals asymmetry manifests a domelike dependence on the reduction duration. …”
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Journal Article -
503
Photonic engineering of terahertz quantum cascade lasers
Published 2015“…QCLs are semiconductor lasers comprising multiple strongly coupled quantum wells, exploiting electron transitions between subbands of the conduction band. By adjusting the widths of the quantum wells/barriers, the emission frequency and performance of the laser can be tailored, adding additional flexibility in the laser design. …”
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Thesis -
504
High-voltage IR-UWB pulse generator MMIC design and beamforming for indoor-ranging and radar applications
Published 2020“…The proposed circuit is optimized for the highest possible output peak-power in the 3-5 GHz UWB band. The presented design is fully utilizing the existing 2 µm GaAs HBT cascode pair configuration, which significantly increases the output voltage swing while reducing the total power consumption. …”
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Thesis-Doctor of Philosophy -
505
Strong self-trapping by deformation potential limits photovoltaic performance in bismuth double perovskite
Published 2021“…The Fröhlich and deformation potentials synergistically lead to ultrafast self-trapping of free carriers forming polarons highly localized on a few units of the lattice within a few picoseconds, which also breaks down the electronic band picture, leading to efficient radiative recombination. …”
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Journal Article -
506
Design of low-power analog filters in WBAN receiver front-ends for hyper/hypothyroidism patients
Published 2022“…Last but not least, the conclusion is drawn in the end of this thesis with future work which may include the flipped-source-follower cell to deal with the trade-off between the noise performance and the in-band linearity.…”
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Thesis-Doctor of Philosophy -
507
Deep generative modeling for image synthesis and manipulation
Published 2024“…First, we design a wavelet-based inpainting network that decomposes images into multiple frequency bands and fills the missing regions in each frequency band separately and explicitly. …”
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Thesis-Doctor of Philosophy -
508
Development of advanced Fe-based oxygen carriers for chemical looping applications
Published 2024“…The enhanced activity can be rationalized by the enhanced activity of the TM-O bonds, which are correlated to descriptors such as Goldschmidt tolerance factor, the O 2p band center, and the degree of TM-O hybridization. 3. …”
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Thesis-Doctor of Philosophy -
509
Pre-failure strain localization in siliclastic rocks: a comparative study of laboratory and numerical approaches
Published 2024“…These simulations revealed three distinct stages of preparatory processes: (i) highly dissipative fronts propagated towards the middle of the sample correlating with the observed acoustic emission locations; (ii) dissipative regions were individuated in the middle of the sample and could be linked to a discernible decrease of the P-wave velocities; (iii) a system of conjugate bands formed, coalesced into a single band that grew from the center towards the sample surface and was interpreted to be representative for the preparation of a weak plane. …”
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Journal Article -
510
On the design of energy storage systems for the smoothing and dispatch planning of large-scale wind power generation
Published 2016“…In this manner, the wind power can then be grouped into high-, mid- and low-frequency bands.…”
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Thesis -
511
Discrete geodesic graphs
Published 2019“…It extends a method which approximates the intrinsic distance with the Euclidean distance in an offset band but allows user to control the error convergence rate and performs the geodesic computation in a Dijkstra-like sweep. …”
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Thesis -
512
Fabrication and characterization of Algan/Gan high electron mobility transistors on silicon
Published 2016“…Semiconductors with wide band gap properties such as the III-V compound, SiC and diamond have been successfully used in high power electronic applications. …”
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Thesis -
513
Phase measurements based indoor visible light positioning systems
Published 2020“…Therefore, the interferences of harmonics from the modulation frequencies are avoided and less band is occupied. The proposed techniques are hence promising in the combination of the VLC and VLP systems.Further researches reveal that PDOA systems using LOs (even with VLO) have an issue of pseudo synchronization. …”
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Thesis-Doctor of Philosophy -
514
Physical layer algorithms and architectures for accurate detection and classification in cognitive radios
Published 2014“…After locating the vacant bands, the CR is required to change its transceiver parameters to use the vacant band opportunistically, which is achieved using SDR technology. …”
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Thesis -
515
Synthesis and optical study of lead halide perovskites for opto-electronic applications
Published 2018“…Using these crystals and optical spectroscopy, important fundamental properties of lead halide perovskite were studied such as: carrier diffusion length, temperature-dependent band gap shift, phonon-assisted upconversion photoluminescence behavior, etc. …”
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Thesis -
516
Investigation of charge transport in nanofiber based solar cells
Published 2015“…It also concurs well with its higher resistance to recombination between the TiO 2 conduction band electrons and the oxidizing species of hole transporting medium measured from EIS. …”
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Thesis -
517
Development of selenization/sulfurization-free CuIn(S,Se)2 for thin film solar cells applications
Published 2015“…Of all the different solar cell technology, copper-indium-gallium sulfide/selenide (CIGS) solar cell is one of the most promising thin film solar cells because of its high optical absorption coefficient, suitable band gap for harvesting a wide range of visible light from the sun as well as some unique electrical and optical properties. …”
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Thesis -
518
Molecular and immunological profiling of Bartonella spp. in shelter cat population in Peninsular Malaysia
Published 2021“…Molecular detection of Bartonella DNA was performed using conventional PCR detecting 16S-23S rRNA intergenic spacer sequence which yield a single band at 630 to 680 base pair. Bartonella DNA was detected from four cats (4/217;1.8%) in which three from cat’s blood and one from oral swab. …”
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Thesis -
519
In-situ infrared spectroscopy studies of surface reactions over irradiated photocatalysts
Published 2013“…However, no major breakthrough is forthcoming as yet and other approaches are attracting serious interest, e.g., sensitization by narrow-band gap semiconductors, decoration with nanoparticulate metals having plasmon resonance absorption, or organic polymers less susceptible to photo-bleaching than conventional dyes. …”
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Thesis -
520