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 25 for “"fiber networks"”.
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Microsecond Time Synchronization for Computing Fiber Networks
… this system into thermally-drawn computing fibers. Each node consists of an nRF54L15 SoC paired with an ICS-43434 digital I2S microphone, enabling synchronized audio data collection. Our design leverages Bluetooth LE connection events to synchronize local clocks with sub-10 µs accuracy …
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Impsat Fiber Networks: ¿para quién tiene más valor?
Esta tesis solo está en formato papel por lo que se debe consultar en la propia Biblioteca Di Tella. La consulta se hace solo bajo reserva escribiendo a serviciosbiblio@utdt.edu.
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Mechanics of Random -Fiber Networks: A Direct Simulation
… shown for the bulk shear stress, the number of fiber-fiber contacts and the fiber orientation. This simulation provides an interesting tool for understanding the mechanics of random-fiber networks, and building models of composite materials processing.
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Biophysical Influence of Nanofiber Networks to Direct Pericyte Aggregation into Spheroids
… assemble into 3D structures. We used suspended fiber networks to demonstrate a new way to form and spatially pattern spheroids comprised of human pericytes. We show that fiber architecture (aligned vs. crosshatched), diameter (200, 500, and 800 nm), and contractility influence spheroids in their …
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Strategies for the Fabrication of Cellularized Micro-Fiber/Hydrogel Composites for Ligament Tissue Engineering
… heal after ACL reconstruction. Electrospun micro-fiber networks have been widely utilized as biomaterial scaffolds to support the growth and differentiation of mesenchymal stem cells toward many tissue lineages including ligament. However, these micro-fiber networks do not possess suitable sizes …
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Cytoskeletal Remodeling in Fibrous Environments to Study Pathophysiology
… to specific ECM biophysical cues including fiber size, spacing, alignment and stiffness remains in infancy. Here, we utilize the non -electrospinning Spinneret tunable engineered parameters (STEP) technique to manufacture ECM mimicking suspended fibrous matrices with precisely controlled …
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Fiber-Wireless Sensor Networks for Monitoring Distributed Generation in a Smart Grid Environment
… for these smart grid applications, such as fiber networks, microwave links, Wireless Sensor Networks (WSNs), etc. The use of heterogeneous solutions can be an attractive architecture option because they combine the advantages of two or more communication systems to provide the needed delay …
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Improving fairness, throughput and blocking performance for long haul and short reach optical networks
… global communications, internet and datacenter networks. This dissertation investigates several important issues in optical communication such as fairness, throughput, blocking probability and differentiated quality of service (QoS). Novel algorithms and new approaches have been presented to …
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STEP-enabled Force Measurement Platform of Single Migratory Cells
… for the deposition of aligned polymeric nano-fibers with control on fiber diameters and orientation in single and multiple layers (diameter: sub 100nm micron, length: mm-cm), deposition (parallelism 2.5 degrees) and spacing (microns)). A wide range of polymers such as PLGA, PLA, PS, and PU …
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Controlling Curvature and Stiffness in Fibrous Environments Uncovers Force-Driven Processes and Phenotypes
… immune cells to explore how the interplay with fiber networks can expand our understanding. We explored the physical interplay with biological processes of fibroblastic cells and show how these are critically regulated by forces that alter their ability to coil depends on fiber curvature and …
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Multiscale models for the degradation, damage, and failure of collagen-based soft tissues
… element continuum to deterministic microscale fiber networks were used to simulate the degradation, damage, and failure of collagen-based tissues and tissue analogs. The models build on previous work that has focused primarily on the pre-failure mechanics of tissues. Enzymatic degradation was …
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A Low-cost Microvascular Phantom for Photoacoustic Imaging Using Loofah
… capable of replicating intricate microvascular networks. In this thesis, we introduce loofah as a novel natural phantom material with complex fiber networks ranging from 50 to 400 μm, enabling the fabrication of phantoms with controlled optical properties comparable to those of human …
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Suspension, yielding, microstructure and applications of bacterial cellulose dispersion
… the unique yielding of bacterial cellulose fiber networks using a new microrheology technique developed specifically for this purpose. The fiber gels exhibit a dynamic structural rearrangement response to applied stress that is shown to be advantageous in applications like particle …
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Effect of composite elements on the mechanics of biopolymer networks
Networks of stiff biopolymers, such as collagen type I, are abundant in the human body and provide structural integrity to the skin and internal organs. These networks are known to exhibit mechanical properties that differ significantly from those of synthetic polymers, making them a subject of …
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Design of 10 Gb/s burst-mode receivers for high-split extended reach PONs
… speed in the currently deployed communication networks. Most networks in use today still consist of twisted copper wires, inherited from the telephone network. The disadvantages of reusing the existing telephone network are twofold. Firstly, the bandwidth of twisted copper wires is limited and …
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DEVELOPMENT OF QUANTUM TECHNOLOGIES FOR QUANTUM COMMUNICATION
… (QKD) technologies and national power-grid fiber networks has indicated that commercial solutions may work on short fiber links along medium-voltage urban lines, while long-distance communication along high-voltage transmission lines remains challenging. This has motivated the exploration of …
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Manipulation of photonic quantum states: From generation, engineering, and characterization to storage and retrieval
… states. Photon-pair states generated in optical fiber exhibit ideal spatial modes for integration in quantum communication fiber networks. We demonstrate polarization-entangled photon-pair generation in commercially available polarization-maintaining fiber. The use of birefringent phase-matching …
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Imaging, Mechanics, Construction, and Sonification of Three-Dimensional Spider Webs
… webs could inspire sustainable high-performance fiber networks and complex assembly strategies. Our framework begins with the first automatic imaging method for quantifying 3D spider web geometries. We use image processing on high-resolution images of slices of the web illuminated by a sliding …
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All optical systems for terabit network era
… demand drives the development of the optical fiber networks. Since optical super-channels carrying multi- Terabit/s transmissions are the next evolution of the optical links, future transmitters and receivers systems will be required to handle vast volume of information while maintaining …
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Single Cell Force Platforms to Link Force-ECM Coupling in Pathophysiology
… (CM) comprised of orthogonal arrangement of fibers is designed to study cell bodies of broad shapes. The combination of shapes achieved on these networks recapitulate mesenchymal shapes observed in vivo, which are used to describe cell behaviors not reported before. The new findings include …
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