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 19 of 19 for “"fiber network"”.
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A Suspended Fiber Network Platform for the Investigation of Single and Collective Cell Behavior
… tumor-matrix interface and wounds along aligned fibers describe invasion to occur as singular leader (tip) cells, or as collective mass of a few chain or multiple tip cells. Recapitulation of these behaviors in vitro promises to provide new insights in how, when and where cells get the stimulus …
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Prediction of Articular Cartilage Remodeling During Dynamic Compression with a Finite Element Model
… with dynamic unconfined compression. The COL fiber network was found to be more highly aligned in the inner portion of the sample than in the peripheral region.</p> <p>Next, a poroelastic finite element model with a remodeling subroutine was developed to test the hypothesis that the magnitude …
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Optical generation of mm-wave signals for use in broadband radio over fiber systems
In future cellular radio networks Radio over Fiber (RoF) is a very attractive technology to deliver microwave and millimeter-wave signals containing broad band multimedia services to numerous base stations of the network. The radio signals are placed on an optical carrier and distributed by means …
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A continuum model for needlepunched nonwoven fabrics
… created by bonding or interlocking a web (network) of fibers through mechanical, thermal or chemical processes. In general, the mechanical response of nonwoven fabrics exhibits two major characteristics. First, the mechanical response can vary significantly when the fabric is loaded along …
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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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The Impact of Privatization on Telecommunications Efficiency in Tanzania:The Case of Tanzania Telecommunication Company Limited
… of 800 MHz and have mandatory to national optic fiber network. Moreover, the findings reveal that in this competitive environment TTCL has managed to deliver an intelligent Network platform such as, prepaid services, a Voice mail System, a Short Message Service Centre, Customer Care and Billing …
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The Impact of Privatization on Telecommunications Efficiency in Tanzania: The Case of Tanzania Telecommunication Company Limited
… of 800 MHz and have mandatory to national optic fiber network. Moreover, the findings reveal that in this competitive environment TTCL has managed to deliver an intelligent Network platform such as, prepaid services, a Voice mail System, a Short Message Service Centre, Customer Care and Billing …
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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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Defining the Role of Elastic Fibers in Tendon Mechanics
… function. Elastin, the main component of elastic fibers, has unique mechanical properties including high extensibility, fatigue resistance, and elasticity; these properties are important for elastin-rich tissues such as blood vessels and the lungs that experience constant cyclic loading. In …
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Vacuum Assisted Resin Transfer Molding (VARTM): Model Development and Verification
… predict the total infiltration time and final fiber volume fraction of the parts, and determine whether the resin could completely infiltrate and uniformly wet out the preform. Flow of resin through the preform is modeled as flow through porous media. Darcy's law combined with the continuity …
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Suspension, yielding, microstructure and applications of bacterial cellulose dispersion
… is to create a colloidal gel, a self-supported network that forms spontaneously from attractive particles. Fluid products containing colloidal gels have superior suspension abilities, because they possess a yield stress that makes the fluid elastic until a threshold stress is exceeded. Yield …
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Interrogating the lungs through wearable fabric electronics
… can perform auscultation on the lungs. These fibers were created using the thermal drawing process that allows the fibers to perform various functions depending on the materials used for the draw. The initial solution used a conductive fiber created by injecting a liquid metal into a hollow …
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Next Generation Information Communication Infrastructure and Case Studies for Future Power Systems
… changes in the way they communicate. Expanding network services such as real time monitoring are also driving the need for more increasing bandwidth in the communication network backbone. These needs will grow further as new remote real-time protection and control applications become more …
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Imaging, Mechanics, Construction, and Sonification of Three-Dimensional Spider Webs
… thickness and the highly complex spatial network are significant challenges towards quantifying and visualizing the intricate architectures, mechanics, and construction of 3D webs. In this work, we aim to provide a consistent and automated non-destructive in-situ experimental and …
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Migration of tumor cells and leukocytes in extracellular matrix : proteolytic and nonproteolytic strategies for overcoming tissue barriers
… strategies to overcome 3D fibrillar matrix networks. To monitor cell migration, a 3D collagen model in vitro or the mouse dermis in vivo were used, in combination with time-lapse video-, confocal- or intravital multiphoton-microscopy, and computer-assisted cell tracking. Expression of …
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Non-invasive characterization of bone tissue and modeling of bone at micron and sub-micron levels
… a single lamella which is formed by a collagen fiber network with fibers aligned in a preferentially oriented direction. We model such a fibrous network computationally using finite element software Abaqus by representing fibers as Timoshenko beams. We generate a random arrangement of fibers by …
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Sub-femtosecond optical timing distribution for next-generation light sources
… dispersion-compensated polarization-maintaining fiber link is demonstrated as a proof-of-concept for eliminating polarization-induced timing drifts. The link is then enhanced to achieve state-of-the-art timing distribution across a 4.7-km fiber network with 0.58 fs RMS residual drift for over 52 …
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Investigation of Single-Cell and Blood-Brain Barrier Mechanics after Electroporation and in Primary Brain Cancers
… using Nanonet Force Microscopy (NFM). A precise network of extracellular-matrix mimicking nanofibers enabled cell attachment and contraction, resulting in measurable fiber deflections. Cell contractile forces were shown to be temporarily disrupted after reversible electroporation, in an …
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Nonreciprocal effects and their applications in fiber optic networks
Nonreciprocity is a fundamental property of networks. Unlike electronic networks theory, optical network theory is still a field to be investigated. Lightwave systems, including fiber optic and integrated optic, are becoming more and more complex, new function blocks ( or components) and networking …