Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"mmW"”.
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Non-destructive Evaluation of Food Products by Microwave and mmW Imaging
… we extend our research to millimeter-Wave (mmW) imaging, investigating the integration of mmW systems with ML tools for nut inspection. The promising results achieved using mmW imaging and ML classification in agrifood applications, particularly for soft fruits like apples and peaches, …
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Genetische und metabolische Regulation von Adiponectin : Resultate von in vitro und humanen in vivo Studien
… als hochmolekulare (HMW), mittelmolekulare (MMW) und niedrigmolekulare (LMW) Spezies. Mit zunehmendem Körpergewicht konnte eine Verlagerung von HMW-Spezies hin zu den LMW-Spezies beobachtet werden. Durch eine moderate Gewichtsabnahme erhöhten sich die Anteile an HMW- und MMW-Adiponectin …
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On Enabling Virtualization and Millimeter Wave Technologies in Cellular Networks
… virtualization (WNV) and millimeter wave (mmW) communications are emerging as two key technologies for cellular networks. Virtualization in cellular networks enables wireless services to be decoupled from network resources (e.g., infrastructure and spectrum) so that multiple virtual …
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Key receiver circuits for digital beamforming in millimeter-wave imaging
Millimeter-wave (MMW) frequencies have wavelengths small enough to offer sufficient spatial resolution for certain imaging applications. Advances in silicon processes have developed devices that can operate at these frequencies, which has led to the potential for low cost MMW imaging, provided that …
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Multiphysics algorithms for the simulation of geological materials under extreme conditions: the evolution and transport of ablated material
… due to severe wearing effects. Millimetre wave (MMW) drilling is a non-contact technology that uses directed millimetre waves produced by a gyrotron to vaporise and ablate bedrock, creating a borehole cavity, with the vaporised material being removed by a purge gas. As an immature technology, it …
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Context-Aware Resource Management and Performance Analysis of Millimeter Wave and Sub-6 GHz Wireless Networks
… microwave and high-frequency millimeter wave (mmW) frequencies bands. This heterogeneous ecosystem will yield new challenges and opportunities for wireless resource management. On the one hand, resource management can exploit user and network-specific context information, such as application …
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Photonics Based Techniques for Millimeter-Wave Generation, Transmission, and Multiplexing
… application in various fields. In this research, MMW generation, transmitting and receiving, multiplexing techniques are investigated. Three ways of MMW generation based on photonics are discussed. By modeling these three techniques and applying different situations of transmission links up to 100 …
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The Effect of Matrix Molecular Weight on the Dispersion of Nanoclay in Unmodified High Density Polyethylene
… both the low (LMW) and middle molecular weight (MMW) matrices. This was attributed to higher shear stress imparted to MMT during compounding from the more viscous matrix facilitating their separation and orientation during injection molding. DMTA showed that the torsional response of the HMW …
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Slowly varying pipe flow of thixotropic fluids
… behaviour: the viscous Moore-Mewis-Wagner (MMW)model, and the viscoplastic Houška model.In Chapters 2-6 we study unsteady thixotropic flow in a slowly varying pipe, in a particular regime in which the thixotropic effects are considered 'weak', with the aim of determining whether we may …
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Design and optimization of dielectric resonator antenna arrays based on substrate integrated waveguide technology for millimeter-wave applications
… bands heavily crowded, the millimeter wave (MMW) frequency band has attracted a lot of attention, offering a wide range of applications. It also introduces new challenges to the research community. Antennas and MMW circuits with compact size, low cost, high efficiency, and low loss are much …
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Architecture of a cognitive non-line-of-sight backhaul for 5G outdoor urban small cells
… is therefore a challenge. Millimeter wave (mmW) technologies operated at 30-90GHz are currently being considered to provide low-cost, flexible, high-capacity and reliable backhaul solutions using existing roof-mounted backhaul aggregation sites. Using intelligent mmW radio devices and …
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An investigation of nanoscale materials and their incorporation in patch antenna for high frequency applications
… and sensing applications in millimetre wave (MMW)region. Electrospinning (ES) technique is used to reconstruct PS and produced PSF material of low dielectric constant. A co-solvent vehicle(comprising 50:50 ratio) of Dichloromethane (DCM) and acetone was utilised with processing condition of …
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Pattern reconfigurable metamaterial antenna for 5G base station network
… different frequency bands i.e. millimetre-wave (MMW) band and sub-6 GHz band for beam deflection applications. The modified double square ring resonator (DSRR) and contiguous squares resonator (CSR) structures are investigated numerically and experimentally to provide low loss property at 76 GHz …
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Obesity-Related Metabolic Syndrome: Investigations into Novel Clinical Markers and Possible Causes
… (high, medium, low molecular weight (HMW, MMW, LMW) (b) serum fat soluble vitamins (sFSVitamins) beta carotene (sβCaro), vitamins (sVit)D, sVitA, sVitE, and VitK(INR) were investigated. Baseline, and mean over 6months (m), oxidants HbA1c and urate were strongly related to MetS marker count, …
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The Analysis and Design of Phase-tunable Low-Power Low-Phase-Noise I/Q Signal Sources for Analog Phase Calibrated Transceivers
… as potential I/Q sources at millimeter-wave (MMW) frequencies. Among the several design challenges that emerge as the oscillator frequency is scaled into the MMW band, precise quadrature synthesis and adequate frequency tuning range are among the hardest to achieve. After describing the …
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Coexistence of Wireless Systems for Spectrum Sharing
Sharing a band of frequencies in the radio spectrum among multiple wireless systems has emerged as a viable solution for alleviating the severe capacity crunch in next-generation wireless mobile networks such as 5th generation mobile networks (5G). Spectrum sharing can be achieved by enabling …