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Fusion of Various Band Selection Methods for Hyperspectral Imagery
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Ku/Ka band mixers development for satellite communication systems
Published 2008“…In order to achieve the required performance, different transmission lines or combinations of them are used for various band mixer designs.…”
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Thesis -
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Second harmonic Hall responses of insulators as a probe of Berry curvature dipole
Published 2022-11-01“…Berry curvature is the key component underlying various band geometric characteristics of solid state systems. …”
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Electronic structure studies of germanium, tin and their alloy
Published 2009“…Origin 7.5 was used for plotting the various band diagrams and for fitting purpose.…”
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Final Year Project (FYP) -
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A review of spectral analysis for low-frequency transient vibrations
Published 2021-06-01“…This paper is to elaborate the spectral analysis procedures on various band widths by using zero-padding on the vibration signal in low-frequency band. …”
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Ab initio calculation of the electronic structure of Fe and Cr interlayers
Published 2010“…The band structure, 'diversity of structure and various band gaps have been calculated using ab initio density functional theory (DFT) for some interlayer structures consisting of Fe and Cr atoms, viz. …”
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Conference or Workshop Item -
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Alternating twisted multilayer graphene: generic partition rules, double flat bands, and orbital magnetoelectric effect
Published 2022-05-01“…Based on analysis from a simplified k⋅p model approach, we derive generic partition rules for the low-energy electronic structures, which exhibit various band dispersions including two pairs of flat bands and flat bands co-existing with various gapless Fermionic excitations. …”
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Synthesis, characterization and band gaps of ZnO, Zn(1-x) CuxO and Zn(1-x)MnxM nanomaterials / Muhd Firdaus Kasim
Published 2015“…The motivation for this research is to obtain substitutionally doped ZnO with various band gap values. This will enhance the light absorption properties of the modified materials. …”
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Book Section -
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The Importance of Avoided Crossings in Understanding High Valley Degeneracy in Half‐Heusler Thermoelectric Semiconductors
Published 2022-04-01“…Here, group theoretical and tight‐binding approaches, in addition to first‐principles density functional theory calculations, are used to study the chemical origins of various band extrema in both the n‐type and p‐type compounds, with particular focus on ZrNiSn and NbFeSb. …”
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Optical coherence tomography in healthy human subjects in the setting of prolonged dark adaptation
Published 2023-03-01“…Abstract Human studies have established that short periods of dark adaptation can induce outer retinal thinning and various band intensity changes that can be detected with Optical Coherence Tomography (OCT). …”
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Metrological Performance of Hybrid Measurement Technique Applied for the Lamb Waves Phase Velocity Dispersion Evaluation
Published 2020-01-01“…Using this technique and employing various band-pass filters it is shown that the DC segments are reconstructed in approximately 50% - 88% bandwidth of the incident signal frequency spectrum. …”
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Implementation of IEEE 802.15.4a Based UWB Systems for Coexistence with Primary Users
Published 2016-03-01“…In this paper, motivatedby implementing the IEEE 802.15.4a based UWB-IR systemsfor peaceful coexistence, we consider the implementation oflinear combination of pulses as suggested by the standard.Accordingly, we (i) design possible linearly combined pulses thatconform to the standard requirements, (ii) consider coherentand noncoherent receiver structures that can be adapted for thephysical layer of the IEEE 802.15.4a standard, (iii) investigatethe effect of channel models on the system performance, and(iv) study the UWB-IR system performance in the presenceof narrowband and orthogonal frequency division multiplexing(OFDM) based wideband primary systems with various band-widths and subcarriers. The study shows that the UWB-IR systemperformance can be significantly improved by selecting suitablepulses for transmission and employing appropriate filteringtechniques at the receiver when the primary system is active.For the implementation of IEEE 802.15.4a based UWB systemscomplying with coexistence requirements, the results of this studyshould be carefully considered.…”
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Optimized Performance Parameters for Nighttime Multispectral Satellite Imagery to Analyze Lightings in Urban Areas
Published 2020-06-01“…To determine optimal spectral bands together with required radiometric and spatial resolution, at-sensor radiances are simulated based on combinations of lamp spectra with typical luminances according to lighting standards, surface reflectances, and radiative transfers for the consideration of atmospheric effects. Various band combinations are evaluated for their ability to differentiate between lighting types and to estimate the important lighting parameters: efficacy to produce visible light, percentage of emissions attributable to the blue part of the spectrum, and assessment of the perceived color of radiation sources. …”
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FTIR and multivariate analysis to study the effect of bulk and nano copper oxide on peanut plant leaves
Published 2016-09-01“…The calculated mean ratio of the peak intensities for various frequency regions and total band area calculation for various band regions explain the variation in lipid, protein and carbohydrate content of leaf samples. …”
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Selecting The Optimum Spectral Ratio for Detecting the Amount of Soil Cation and Anion by Using ASTER Satellite Photographs Case study: Dareh Anjir of Kavir-bafgh
Published 2014-09-01“…To achieve this purpose, after applying geometric and radiometric correction and average filter, 56 various band ratios were produced. Then, 42 samples of soil were collected from ground surface 0-5 cm and the amount of their cations and anions was measured. …”
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Organic Semiconductor Field-Effect Transistors Based on Organic-2D Heterostructures
Published 2020-10-01“…The in-plane lattice of 2D materials can offer possible epitaxy templates for OSCs while the weak van der Waals (vdWs) interaction between OSC and 2D layers allows for more flexibility to realize the epitaxy growth of OSCs with their favored assemble manner. In addition, the various band structures tuned by the layer numbers of 2D materials encourage widely modified OSC electronic structures by interface doping between the OSC and 2D layers, which benefits the structure by obtaining high-performance OFETs. …”
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Stochastic Model for Energy Propagation in Disordered Granular Chains
Published 2021-04-01“…The mean field stochastic model, the matrix of energy-transfer probabilities between bands, is calibrated from the deterministic analytical solutions by ensemble averaging various band-to-band transfer situations for short times, as well as considering the basis energy levels (decaying with the wavenumber increasing) that are not transferred. …”
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Hyperspectral Band Selection Using Attention-Based Convolutional Neural Networks
Published 2020-01-01“…To reduce the time (and ultimately cost) of transferring hyperspectral data from a satellite back to Earth, various band selection algorithms have been proposed. …”
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Reflectance spectra and AVIRIS-NG airborne hyperspectral data analysis for mapping ultramafic rocks in igneous terrain
Published 2022-10-01“…The AVIRIS-NG data analyses include bad band removal, minimum noise fraction transformation (MNF) and band combination. Out of various band combinations, the MNF composite images B456, B546 and B561 provided an enhanced output for the delineation of various rock types in the ultramafic terrain.…”
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Article