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.
Results
Showing 1 to 12 of 12 for “"Open cell foam"”.
-
An active seating system for prevention of pressure sores
… uses vacuum and pressure in combination with an open-cell-foam-based cushion to perform pressure relief. Testing methods for the system were studied and developed. These methods allow a controlled and precise testing of seating systems. Prototype systems have also been produced and tested. …
-
Enhanced comfort of seating systems through variable shape and compliance
… to manipulate the elastic/collapse properties of open-cell foam; effectively setting a maximum pressure at the human interface. Assuming appropriate auxiliary hardware, pumps, controllers, and sensors it would be appropriate to use this cushion as the basis of an actively controlled seating system.
-
High performance curtain wall mullion section design with various densities of gyroid
… both issues, this thesis proposes utilizing a cellular structure in mullion design. In particular, this thesis has selected a single-gyroid structure, which is an open cell foam structure that has the minimum surface area necessary to span a region of space. The thesis explores various aspects …
-
Effect of volume fraction of solids on the compressive stress-strain behavior of collagen-glycosaminoglycan scaffolds
… the structure and compare these results to the open-cell foam model. Collagen-GAG (CG) scaffolds have been used for regenerating skin, conjunctiva, and peripheral nerves with varying levels of success. In these uses, the temporary scaffolds are often deployed with a non-degradable support …
-
The structure and mechanical behavior of bamboo and bamboo products
Bamboo is a unique lignocellulosic material with considerable potential in sustainable construction. Structural bamboo products are analogous to wood products, such as oriented strand board (OSB), but composed primarily of bamboo elements, as opposed to wood elements. Such products could extend the …
-
Nanoindentation of copper covetics and the mechanical testing and microstructural imaging of additive manufactured Inconel 718
… two linear regions, which is often found in foams. Scanning electron microscopy and micro-computed tomography showed an open-cell foam-like structure throughout the specimens. It was found that the specimens with the two lowest densities had large voids corresponding to unsintered regions.
-
Impact sound insulation of flooring systems with polyurethane foam on concrete floors
… profile floating floors comprising flexible open cell polyurethane foam resilient layers have been developed. These systems are attractive for refurbishment projects since they can simply be placed on existing floors in order to improve their impact sound insulation whilst raising the …
-
Comparing the performance of different catalyst packings for Fischer-Tropsch synthesis
… a favourable product distribution. Furthermore, open-cell foams reactors have the potential to enhance external mass in fixed-bed reactors because of their tortuous flow channels and high geometric surface area. The aim of this study was to compare the performance of catalyst coated on a ceramic …
-
Mechanical Design of Selected Natural Ceramic Cellular Solids
… structure and mechanical properties of natural cellular solids such as wood and trabecular bone have been extensively studied in the past, the structural design and underlying deformation mechanisms of natural cellular solids with very high mineral contents (> 90 wt%), which we term as natural …
-
Formation of salt crystal whiskers on nanoporous coatings and coating onto open celled foam.
… size and location on the nanoporous coating. Open celled foam is a three dimensional structure. In some applications, other materials are coated on internal surface of the foam to provide desired final product functionality. Because of their complicated 3D structures, coating onto foam is …
-
Fluid dynamics and mass transfer in porous media: Modelling fluid flow and filtration inside open-cell foams
L'abstract è presente nell'allegato / the abstract is in the attachment
-
Ceramic & Metallic Open Cell Foams for the Lean Methane Combustion Reaction: Exploring the Impact of Catalytic Supports
L'abstract è presente nell'allegato / the abstract is in the attachment