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 “"veneers"”.
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Investigating Moisture Gradient-Induced Warpage of Veneers
… Out-of-plane deformation, or warpage, of wood veneers caused by changes in moisture content affects the ability to press flat panels. To understand wood panel warpage, experimental methods are developed to create and measure moisture-induced deformation of wood veneers on five species of …
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Nanoscale surface modification of wood veneers for adhesion
Surface chemistry of wood is based on the exposed cut surface that is the combination of intact (lumen wall) and cut cell wall material. It is inherently complex and changes with history of processing. Modification of wood surface through noncovalent attachment of amine containing water soluble …
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Survival rate and fracture strength of maxillary incisors, restored with different kinds of full veneers : an in-vitro study
… strength of different kinds of ceramic full veneers, fabricated with a new experimental press ceramic (EPC), were evaluated after exposure to the artificial mouth. <br>Eighty, caries-free human maxillary central molars were used as abutments for the full veneers. The teeth were randomly …
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Factors Affecting the Structural Integrity of Wood-Based Composites: Elevated Temperature and Adhesive Bonding
… auxiliary aluminum adherends are bonded to the veneers in an effort to drive the crack to the wood/adhesive interface. The method is applied to rotary-peeled veneers and saw-cut veneers produced from three species of wood bonded with three commonly used adhesives. The new tests method yields a …
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Taphonomic studies of fossil preservation in coarse-grained siliciclastic environments
… clay minerals for up to two months. Clay mineral veneers coated both cyanobacterial filaments and the surfaces of soft tissues and were formed by two main processes: 1) the adhesion of fine particles from the sediment and 2) the precipitation of authigenic minerals. Photosynthetic, sheathed …
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Entwicklung eines biologisch inspirierten, dreidimensional verformbaren Furniers aus Druckholz
… suitable for the three-dimensional processing of veneers. By applying advanced technologies high deformation levels were achieved.
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Performance of laminated veneer wood plates in decking systems
… and 2.5 mm (gl and i6 inch) thick Douglas-fir veneers has been generated through experimental studies as input to the model. The database includes information on bending, tension, and compression strength properties, shear moduli of rigidity, ultrasonic transmission time, and connection …
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A matter of context
… but often the message is lost. The use of veneers and hidden steel structures makes perception compete with the truth. If a building’s appearance reflects its construction, then its system of values is more easily understood. The· shapes and materials that convey these values can be derived …
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Compatibility and durability of concrete-stone system: The desert masonry at Taliesin West
… system’s performance. Unlike conventional stone veneers that rely on adhesives or mechanical anchors, desert masonry offers a distinct case for understanding the behavior of stone-concrete interactions. To evaluate performance, commercial quartzite samples were selected to represent the face …
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Ecological studies of fungi growing on isolated wood
… fungi could grow at the surface and within beech veneers at moisture levels below the 20% minimum recorded in the literature, it is considered that the biological activity of water is increased at above ambient temperatures. The effect of constant, alternating and fluctuating temperatures on the …
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The Effects of Nigerian Fungi on Nigerian Wood
… The fungal flora of Nigerian soil samples, wood veneers, and the aerial environment where the soil samples were collected was investigated. The isolates included many fungal biodeteriogens. There was a close relationship between the fungal flora of the three environments. The effects of Nigerian …
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Ecological Studies of Fungi Growing on Insolated wood
… fungi could grow at the surface and within beech veneers at moisture levels below the 20% minimum recorded in the literature, it is considered that the biological activity of water is increased at above ambient temperatures. The effect of constant, alternating and fluctuating temperatures on the …
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Surfaces
… for all materials to become increasingly thin "veneers" as a result of modern surface fabrication processes); and surface "Preservation" (our increasing awareness of the cultural value of historic surfaces - and the inconsistencies of our existing preservation philosophies). The intention of …
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The Middle Ordovician Knox unconformity, Virginia Appalachians: transition from passive to convergent margin
… on the unconformity surface formed thin to thick veneers of regolith; locally this material was reworked by fluvial and marine processes. Much fine dolomite detritus was reworked and deposited as alluvial fan and playa mud-flat sediments in lows on the unconformity surface. The unconformity …
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Legacies of Early 20th Century Logging in Southern Appalachian Streams
… rate of experimental leaf packs and wood veneers was not significantly different between unlogged and logged streams. Leaf breakdown was strongly related to shredder colonization, while wood breakdown was unrelated to variables measured. Much of the persisting disturbance to streams by …
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The Chaco connection: Bonito style architecture in outlier communities
… so "internal" variables such as banded veneers and kiva/room ratio were compared across the outlier data base. If outlier Bonito style architecture had a central, Chaco Canyon source, internal variables were expected to exhibit similarity; if the architecture was constructed under local …
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Microbial activity on wood in streams: exploring abiotic and biotic factors affecting the structure and function of wood biofilms
… releasing substrates placed beneath wood veneers indicated co-limitation of nitrogen and phosphorus on biofilms in the reference stream. Competition for nutrients by microbial biofilms may play a regulatory role in detrital processing in these streams. Laboratory feeding studies using …
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Χημική δομή και μεσοφασικές δράσεις τεσσάρων σιλανιούχων σκευασμάτων επιδιόρθωσης κεραμικών όψεων
… chairside repair of failed porcelain and acrylic veneers. Most of the studies performed on silanes as repair materials have been focused on the interfacial strength of composite resin repairs on porcelain alloys. However, the obtained results are contradictory to support the efficiency of specific …
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Step-Stress Fatigue, Fracture Toughness and Load to Failure of an Additively Manufactured Ceramic Filled Hybrid Crown Material
… for permanent single crowns, inlays, onlays and veneers.[1] The manufacturer categorizes Varseosmile Crown Plus as a ceramic filled hybrid composed of esterification products of 4.4'-isopropylidiphenol, ethoxylated and 2-methylprop-2enoic acid, silanized dental glass.[2] The total content of …