-
3641
Combined electron imaging and diffraction methods for understanding disordered rocksalt cathodes
Published 2023“…Prior to the structural investigation of these materials a digression is taken into optimising the workflow for 4-dimensional scanning transmission electron microscopy (4D-STEM) data, specifically, in the case of low-dose imaging of beam-sensitive materials, including potential cathode candidates.…”
Thesis -
3642
A deterministic mechanism for efficient removal of arsenic and lead from wastewater using rapidly synthesized TiO2-(α-Fe2O3) nanoshells
Published 2024“…The produced nanocomposites were customized by targeting Ti that was submerged in deionized water as growth medium and then irradiate using the laser pulses with an optimum laser energy 10.6 J/cm2, spot focused size of 1.2 ± 0.2 mm, frequency of 6 Hz, and laser beam with a pulse duration of 8 ns for 15 minutes. …”
Article -
3643
Reduction of bubble cavitation by modifying the diffraction wave from a lithotripter aperture
Published 2013“…There is no difference, however, in both the amplitude and duration of the compressive shockwaves between these two configurations as well as the −6 dB beam width in the focal plane. The significant suppression effect of bubble cavitation was confirmed by the measured bubble collapse time using passive cavitation detection. …”
Get full text
Get full text
Journal Article -
3644
Multi-branch sandwich piezoelectric energy harvester : mathematical modeling and validation
Published 2021“…The proposed harvester comprises of a main sandwich beam as substrate with a patch of piezoelectric layer bonded over it. …”
Get full text
Journal Article -
3645
3D ultrasonic imaging of surface-breaking cracks using a linear array
Published 2022“…In conjunction with the hybrid imaging method, a reduced element array enables the utilisation of the information from a broad ultrasonic beam in the elevation direction to achieve improved image resolution. …”
Get full text
Journal Article -
3646
Investigation of soil-structure interaction for deep excavations
Published 2023“…The deep excavation was supported by a complex ’combi-wall’ cofferdam, a reinforced concrete (RC) capping beam, and two levels of internal bracing, and its performance was assessed through measured wall deflections, bracing member loads, and site and bunker water levels. …”
Thesis -
3647
Investigation of solar cell carrier lifetime using photoconductance lifetime measurements
Published 2020“…For comparison, we have also studied electron beam deposited MoOx as a passivation layer. The evaluation of the quality of the passivation is done by measuring the effective lifetime of Si via the Sinton WCT-120 Photoconductance Lifetime tester. …”
Get full text
Final Year Project (FYP) -
3648
Constructing 3D self-supporting surfaces with isotropic stress using 4D minimal hypersurfaces of revolution
Published 2021“…The existing thrust network analysis methods discretize both geometry and material by approximating the continuous stress field through uniaxial singular stresses, making them an ideal tool for analysis and design of beam structures. In contrast, our method works on piecewise linear surfaces with continuous material. …”
Get full text
Journal Article -
3649
Effect of geometric scaling on the microstructural development of selective laser melted metal parts
Published 2022“…This study discusses the effect of geometric scaling, delay time (i.e., the time it takes for the laser beam to jump from one scan vector to the adjacent scan vector, which is controlled by the jump speed), gas flow, and defocusing distance on microstructural development and mechanical properties of selective laser melted 316L stainless steel. 316L stainless steel has been used in various industries such as aerospace and petrochemical industries due to its superior properties such as very good corrosion resistance. …”
Get full text
Final Year Project (FYP) -
3650
Non-Destructive Material Characterization Methods /
Published 2023Get full text
Get full text
software, multimedia -
3651
Squeezing the Quantum Noise of LIGO below the Standard Quantum Limit
Published 2024“…The SQL applies when using uncorrelated photons or coherent light to measure the object, such as a laser beam. However, introducing quantum correlations through squeezed light, a technique called squeezing (Chapter 2), can circumvent this limit. …”
Get full text
Thesis -
3652
Growth of gallium nitride nanowires by low pressure chemical vapor deposition (LPCVD)
Published 2013“…Growth of III-Nitride nanowires on Si, which is the most commonly used substrate in microelectronic industry, using different growth techniques such as conventional Chemical Vapor Deposition (CVD), Metal Organic Chemical Vapor Deposition (MOCVD), and Molecular Beam Epitaxy (MBE) etc. have been explored. Low pressure chemical vapor deposition (LPCVD), which is widely used in Si wafer fabs, is of particular interest due to its low cost, ability to handle large size wafer and high throughput. …”
Get full text
Thesis -
3653
Ordered hybrid nanoneedle arrays for gas sensing
Published 2014“…In the present thesis, a novel ordered metal/silicon hybrid nanoneedle array is fabricated using an ion beam that patterns the metal/silicon substrate producing a pillar array followed by the self-organization of hybrid nanoneedles. …”
Get full text
Thesis -
3654
Surface plasmon resonance (SPR) enhanced biosensors
Published 2016“…The fabrication steps of the arrays were composed of electron-beam lithography and nano-imprint lithography. In comparison with the PAuNH array, the AuNH array offered higher field enhancement for fluorescence when only LSP was excited. …”
Get full text
Thesis -
3655
Two-dimensional transitional metal dichalcongenide heterostructures : interface optical properties
Published 2018“…In the hBN/TMDC/hBN heterostructure, e-beam induced e-h pairs can transfer to and be trapped in the middle TMDC layer, leading to increased recombination probability within the TMDC layer. …”
Get full text
Thesis -
3656
Novel heat treatment methodology for residual stress relieve of AlSi10Mg without compromise of mechanical strength
Published 2021“…Additive manufacturing (AM) has made the fabrication of complex parts possible which otherwise, would not have been possible with conventional subtractive manufacturing. Laser Beam Powder Bed (LBPB) Fusion, commonly known as Selective Laser Melting (SLM), is one of the methodologies in AM for metal fabrication. …”
Get full text
Thesis-Doctor of Philosophy -
3657
SPP/LSP coupled hybrid mode directed multi-functional surface-enhanced Raman system
Published 2013“…In the experiment, SPPs are excited by a tightly-focused radially polarized beam and interact with the nanospheres to generate the plasmon-hybrid-mode, exactly according to the second configuration aforementioned. …”
Get full text
Thesis -
3658
Hybrid lasers and modulator on silicon in the near- and mid-infrared region
Published 2017“…The lateral grating can be fabricated by CMOS-compatible inline lithography, which avoids the use of expensive and time-consuming electron beam lithography. The device works at room temperature with the single-side-suppression-ratio (SMSR) of 20 dB and the threshold current density is 1.54 kA/cm2. …”
Get full text
Thesis -
3659
Selected Problems of Solid Mechanics and Solving Methods /
Published 2024Get full text
Get full text
software, multimedia -
3660
Developments in THz Polaritonics: Towards Integrated Nonlinear THz Spectroscopy
Published 2024“…The optical pump light is focused onto the bevel, after which it refracts and becomes confined within the waveguide by total internal reflection. This allows the pump beam to repeatedly drive the generated THz field during its multiple back-and-forth traversals within the LN slab. …”
Get full text
Thesis