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121
Design and Implementation of Active Antennas for IoT-Based Healthcare Monitoring System
Published 2024“…By controlling the PIN diode’s ON and OFF state, the active antenna can switch between a single band of 5.8 GHz and a dual-band of 2.4 GHz and 5.8 GHz. …”
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Article -
122
Narrowband enhancement of speech using linear Cepstral prediction
Published 2008“…Current Public Switched Telephone Networks (PSTN) band limit, speech to 4 kHz to cater to the bandwidth limitation in their transmission medium. …”
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Thesis -
123
Growth and optimization of III-V semiconductor solar cell structures.
Published 2011“…Solar spectrum is used to explain and relate it with the material band gap. Photon energy that is equal or greater than this band gap is then excite an electron to conduction band which lead to photocurrent generation. …”
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Final Year Project (FYP) -
124
SU(3) topological insulators in the honeycomb lattice
Published 2019“…While SU ( 2 ) spin-orbit couplings always lead to time-reversal symmetric tight-binding models, and thereby to topologically trivial band structures, suitable SU ( 3 ) spin-orbit couplings can break time-reversal symmetry and lead to topologically nontrivial bulk band structures and to edge states in the strip geometry. …”
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Journal Article -
125
Design of wideband low-loss reconfigurable reflectarray antenna
Published 2024“…The finding is that for designs with severe in-band resonance within the working bandwidth, appropriately oriented vertical metal vias can move the resonanceout of the working frequency band. …”
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Thesis-Master by Coursework -
126
Study of impact properties of materials by instrumented impact testing
Published 2009“…Further experiments were carried out on a much more degraded austenitic plate without obvious rolling bands from the same mixing chamber. In the latter material, rolling band-induced delaminations did not occur even at -196°C and the impact energy values were found to be largely independent of test temperature, as normally expected of an austenitic stainless steel. …”
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Thesis -
127
Influence of sintering temperature on structure, physical, and optical properties of wollastonite based glass-ceramic derived from waste eggshells and waste soda-lime-silica gl...
Published 2024“…Additionally, the FTIR spectral confirm the Si-O-Ca vibration band at the wavelength of 650 cm-1. For the optical sample, the value of indirect allowed transition with n=2 is the ideal value of the optical band gap based on a band gap rise from 3.89 to 4.23 eV with increasing sintering temperature. …”
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Article -
128
Reconfigurable antennas for GSM and WLAN applications
Published 2013“…Optimum number of switches and locations of the switches were determined through to obtain the best performance in GSM band with minimal trade-off for the performance in the WLAN band. …”
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Thesis -
129
Machine learning algorithm for electroencephalography (EEG) based brain signal analysis
Published 2017“…After evaluation of the 3 classification methods, it was found that LDA works best with an accuracy of 92.9% in the alpha band. For beta band, KNN gives the best prediction accuracy of 92.9%. …”
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Final Year Project (FYP) -
130
Modulation and control strategies for neutral-point-clamped converters
Published 2021“…In addition to the predefined voltage band (applied to the CVs), a variable current band is applied to the phase currents. …”
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Thesis-Doctor of Philosophy -
131
The relations between Van Der Waals and covalent forces in layered crystals
Published 2017“…Prominent in them, MoS2, WSe2 shows tuning of physical properties including band gap with reduced thickness and even an indirect to direct band gap transition when reduced to monolayer. …”
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Thesis -
132
Electronic structures of topological materials studied by angle-resolved photoemission spectroscopy
Published 2024“…The study measures the general band structure of twisted bilayer MoTe<sub>2</sub> and uses in-situ alkaline metal dosing to visualize the conduction bands. …”
Thesis -
133
Electronic and transport properties of TMDC planar superlattices: effective Hamiltonian approach
Published 2023“…We observed that outside the band gap, the Fano factor changes from 1 to smaller values gradually, that indicates the ballistic transport. …”
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Journal Article -
134
Electronic structure and optical properties of halide double perovskites from a Wannier-localized optimally-tuned screened range-separated hybrid functional
Published 2024“…We also use the approach as a starting point for GW calculations and we compute the band structures and optical absorption spectrum for Cs2AgBiBr6, using both time-dependent DFT and the GW-Bethe-Salpeter equation approach. …”
Journal article -
135
Signal identification in cognitive radio
Published 2009“…Cognitive radios are intelligent radios that are adapted to sense spectrum holes and transmit data in an identified spectrum hole. A spectrum hole is a band of frequencies that is assigned to a primary radio but, at a particular time and at a specific geographic location, the band is not being used by the primary radio. …”
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Final Year Project (FYP) -
136
Two-dimensional transitional metal dichalcongenide heterostructures : interface optical properties
Published 2018“…For example, two-dimensional (2D) transitional metal dichalcogenides (TMDCs), such as MoS2, WSe2, exhibit band gap transitions from indirect one in bulk to direct one in monolayer. …”
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Thesis -
137
Design of a wideband array antenna
Published 2013“…This thesis presents a design of wide-band and high-gain linear array antenna which has eight antenna elements. …”
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Thesis -
138
Space efficient meta-grid lines for mutual coupling reduction in two-port planar monopole and DRA array
Published 2023“…The TPCFMAA can be used in 3.5 GHz Internet of Vehicles (IoV) multi-user MIMO service, whereas the TPDRAA can be used for satellite communication in the 5.925 to 6.425 GHz frequency band, WiMAX in the 5.7 to 5.85 GHz band, ISM in the 5.725 to 5.85 GHz band, and WLAN in the 5.8 GHz band.…”
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Journal Article -
139
Interface energetics and dynamics in organic-inorganic hybrid perovskites
Published 2019“…In the second part of the work, a successful homemade TR-2PPE system was set up, and preliminary studies on CsPbBr3 single crystals found that hot carriers generated through carrier-carrier scattering ∼1 eV above the conduction band edge possess long lifetimes ∼3 ns under resonant excitation due to strong band-filling and long lifetimes of band edge carriers in single crystals which hinder hot carrier cooling. …”
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Thesis -
140
Surface composition dependent ligand effect in tuning the activity of nickel–copper bimetallic electrocatalysts toward hydrogen evolution in alkaline
Published 2021“…Such correlation indicates the descriptor role of d band center, and this hypothesis is further supported by the evidence that com-bining Ni and Cu produces a variety of adsorption sites, which possess near-optimal hydrogen binding energy. …”
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Journal Article