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 20 of 276 for “"high-capacity"”.
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Advanced optical techniques for high capacity transmission
… techniques that are crucial for improving high capacity transmission systems. The basic theory of optical fibre communications are introduced before optical solitons and their usage in optically amplified fibre systems are discussed. The design, operation, limitations and importance of the …
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High Capacity VCSEL Array Based Optical Wireless Links
The development of new high-speed wireless data transmission applications, such as high-definition video streaming, virtual reality, and the Internet of Things, increases the future demand for mobile data traffic capacity. However, the limited RF spectrum is not sufficient to meet this demand. …
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Dynamically reconfigurable long-reach PONs for high capacity access
… (FTTP) is currently seen as the ultimate in high-speed transmission technologies for delivering ubiquitous bandwidth to customers. However, as the deployment of network infrastructure requires a substantial investment, the main obstacle to fibre deployment is that of financial viability. With …
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High Capacity Heat Exchangers for Recirculating 18F Radionuclide Production Targets
… water targets for the cyclotron production of high yields of 18F fluoride for PET radiopharmaceuticals. Flourine-18 is commonly produced through proton irradiation of 18O enriched water by the 18O(p,n)18F reaction. Heat deposited in the target fluid by the proton beam is proportional to the 18F …
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Directed lithium transport in high capacity lithium-ion battery electrodes
… intercalation of lithium atoms. We highlight model strain-limiting silicon anode architectures that mitigate these impacts. By selecting a specific design for the silicon anode microstructure, and exploiting the crystallographic anisotropy of strain evolution upon lithium …
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Identifying Bottlenecks through Process Consistency in High-Capacity Automated Manufacturing
This thesis explores the identification of bottlenecks in automated assembly lines through process consistency. In general, large automated assembly lines have processes grouped together that have a huge affect on one another. They can only operate as fast as the slowest process (the bottleneck) in …
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Leaching from High Capacity Arsenic-Bearing Solid Residuals under Landfill Conditions
… the fact that non- iron based media may have a higher arsenic adsorption capacity, they leach arsenic at a higher rate than iron based media under our simulated landfill conditions.
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Efficient resource allocation and call admission control in high capacity wireless networks
Resource Allocation (RA) and Call Admission Control (CAC) in wireless networks are processes that control the allocation of the limited radio resources to mobile stations (MS) in order to maximize the utilization efficiency of radio resources and guarantee the Quality of Service (QoS) requirements …
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Theoretical and Experimental Investigation of Frictional Phenomena in High Capacity Gear Drives
Made available in DSpace on 2014-12-10T22:48:28Z (GMT). No. of bitstreams: 1 7511769.pdf: 9093521 bytes, checksum: 0bf488bfbafa05e86d0fd394572f73d4 (MD5) Previous issue date: 1974
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Design of indoor communication infrastructure for ultra-high capacity next generation wireless services
… antenna systems (DAS) to support next generation high speed wireless services that require high densities of access points and must support multiple-input multiple-output (MIMO) protocols. First, it is shown that fibre links in DAS can be replaced with low-cost, broadband free-space optical links, …
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On-demand high-capacity ride-sharing via dynamic trip-vehicle assignment with rebalancing
… algorithms are unable to accommodate high capacity vehicles and do not incorporate future predicted demand. This thesis presents a real-time method for high-capacity ride-sharing that scales to a large number of passengers and trips, dynamically generates optimal routes with respect to …
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Mechanics of deformation and fracture of silicon electrodes in high-capacity lithium-ion batteries
Lithium ion batteries, a high energy density system, store energy by insertion of Li ions into solid electrodes. Silicon is one of the most promising electrode materials for high performance lithium ion batteries, since it has a specific capacity of ~10 times higher than conventional graphite …
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Design of a High Capacity, Scalable, and Green Wireless Communication System Leveraging the Unlicensed Spectrum
… the additional mobile wireless data offload capacity from Macro Cell to small cell in LTE Heterogeneous Networks (HetNet), to meet such an increase in wireless data demand. The U.S. 5 GHz Unlicensed National Information Infrastructure (U-NII) bands that are currently under consideration for …
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Investigation and Improvement of the Low Temperature Performance of High-Capacity Silicon Anodes for Lithium-Ion Batteries
The behavior of a lithium-ion battery is highly influenced by its operating temperature. Kinetics of lithium intercalation may improve upon increased temperature or become sluggish when the temperature is lowered. Many physical properties and reactions within the cell during discharge contribute to …
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Quadrupole Mass Filter as a Sensitive and Selective Detector for Direct Gas Chromatographic Coupling Employing a High Capacity Sampling System
Made available in DSpace on 2014-12-10T23:01:19Z (GMT). No. of bitstreams: 1 7212351.pdf: 3151744 bytes, checksum: 5ca90d716381b539aa9e099be893f8e3 (MD5) Previous issue date: 1971
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The application of high capacity ion exchange absorbent material, synthesized from fly ash and acid mine drainage, for the removal of heavy and trace metals from secondary co-disposed process waters
… the feasibility of the application of low cost high capacity inorganic ion exchange material, synthesized form collected fly ash and acid mine drainage solid residues, for the decontamination of secondary co-disposal process waters, with emphasis on investigating the processes governing the …
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A monolithically integrated thermo-adsorptive battery
… framework water adsorbents promises extremely high capacity for both cooling (>800 kJ/L) and heating (>1150 kJ/L) applications. In the thermal battery, interdigitated adsorption and evaporation sites create hot and cold battery terminals analogous to the positive and negative terminals in an …
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