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 20 of 158 for “"Reinforcements"”.
-
Reinforcements as an intervention in children with bipolar disorder
… of this study was to test social and token reinforcements as an intervention to help eliminate behavior problems that are common in children with Bipolar Disorder. The subject was a six-year-old Caucasian boy diagnosed as bipolar. The experiment was performed during eight non-consecutive …
-
DEVELOPMENT OF COST EFFECTIVE NANOSTRUCTURAL REINFORCEMENTS FOR ADVANCED COMPOSITES
… complex nanostructures that behave as effective reinforcements. The soot mainly composed of amorphous particles with a high density of defects having a majority of sp2 bonding. During mechanical milling, this soot transforms in-situ into diamond, graphene and graphitic carbon. Milling media have …
-
Analysis and measurement of stresses in planar soil reinforcements
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1993.
-
The in situ generation of liquid crystalline polymer reinforcements in thermoplastics
The overall objective of this work was to enhance the mechanical properties of thermoplastics by blending with liquid crystalline polymers (LCPs). Injection molding and sheet extrusion studies of blends of poly(ethylene terephthalate) (PET) with several LCPs were conducted with an emphasis on …
-
COLD SPRAYED COATINGS WITH DUAL NANOPARTICLE REINFORCEMENTS FOR WEAR AND CORROSION PROTECTION
… Using nanoparticle metal and dual ceramic matrix reinforcements, six composites were fabricated through cryomilling and then applied to an aluminum substrate as a cold sprayed coating. Using nano-boron carbide (nB4C) and boron nitride nanoplatelets (BNNP) at various combinations up to 2 vol%, an …
-
Synthesis and processing of intermetallic matrix composites as reinforcements in metallic matrices
Not available until OCRd
-
The Effects of Internal/external Locus of Control on Intrinsic/extrinsic Motivation With Contingent/noncontingent Reinforcements
Made available in DSpace on 2014-12-10T23:09:05Z (GMT). No. of bitstreams: 1 7511555.pdf: 3940253 bytes, checksum: c92bee61aab14a832411ad8a46cf3b50 (MD5) Previous issue date: 1974
-
Development of synthetic fiber-based reinforcements for thermoplastics as alternative to steel-based analogs for industrial applications
Despite being robust and inexpensive, steel cords can often become a source of risk to user health and safety when incorporated in industrial applications such as escalator handrails and rubber conveyor belts. Due to their inherent creep accompanied by cyclic thermal expansion and contraction of …
-
A parametric investigation on the shear strength and bearing capacity of Cenozoic Berea Red Sand with geosynthetic reinforcements
The use of Berea Red sands can be seen extensively among civil infrastructure particularly along the eastern coast of South Africa. These cohesive soils vary in colour, composition, and strength. Despite the understanding of limited works being published on the geotechnical properties on Berea Red …
-
Corrosion Behavior of Corrosion-Resistant Steel Reinforcements in High and Ultra-High Performance Concrete in Chloride Attack Environments
… structures. The use of corrosion-resistant steel reinforcements and advanced concrete is one potential solution. This dissertation presents the research findings of the corrosion behavior of corrosion-resistant steel reinforcements (epoxy coated, high chromium steel, and stainless steel …
-
Investigations on Void Formation in Composite Molding Processes and Structural Damping in Fiber-Reinforced Composites with Nanoscale Reinforcements
… to explore the use of matrix-embedded nanoscale reinforcements to augment the inherent damping capabilities in FRCs. The first objective is addressed through a computational modeling and simulation of the infiltrating dual-scale resin flow through the micro-architectures of woven fibrous …
-
Classroom Interaction Patterns: Differential Effects and Relationships Between Sixth-Grade Children's Self-Concepts and Locus of Control of Reinforcements
Made available in DSpace on 2014-12-10T18:44:42Z (GMT). No. of bitstreams: 1 7114990.pdf: 8789027 bytes, checksum: d94573da0258bea86a41aa79898a321f (MD5) Previous issue date: 1970
-
Numerical and experimental evaluation of the erodibility of particle packings with surface treatments and spring reinforcements using the discrete element method
… 1.8 and 8.0 millimeters. The elastic spring reinforcements represent a potential modeling technique for root development in a soil. The spring reinforcement technique presented here is a proof-of-concept attempt to model three-dimensional slopes at up-scaled particle sizes, root stiffness, …
-
The Influence of Reinforcement Architecture on the Fracture Behavior of Selectively Reinforced Materials
… of rectangular and triangular cross-section reinforcements were evaluated. Reinforced specimens produced between 13 and 28 percent higher fracture load than achieved with the non-reinforced case. Reinforcements with blunt leading edges (rectangular reinforcements) exhibited superior …
-
Alleviation of stress concentration with analogue reinforcement
… around a hole in a plate, new, “analogue” reinforcements instead of reinforcing rings were used in this investigation. In two of these specimens, reinforcements with different volume fractions were arranged to coincide with the stress trajectories for an infinite plate with a hole under …
-
Bonded structures for enhanced damage tolerant pressurized fuselages
… Metal Laminates (MLs) and eventually Selective Reinforcements can guarantee slow crack propagation, crack arrest and large damage capability. To optimize the design exploiting the benefit of bonded structures incorporating selective reinforcement requires reliable analysis tools. The effect of …
-
Performance of Columnar Reinforced Ground during Seismic Excitation
… seismic performance of soil-cement columnar reinforcements in loose sandy profiles. Different constitutive models were investigated in order to find a model that can properly predict soil behavior during seismic excitations. These models included NorSand, Dafalias-Manzari, Plasticity Model …
-
An Experimental Analysis of Superstitious Behavior in College Males
… Shock Group {RSG) was given 100 positive reinforcements and then 45 unavoidable shocks. The Reinforcement Punishment Group received 100 positive reinforcements and then 45 response contingent shocks and served to test the effectiveness of the shock as a punishing stimulus. Superstitious …
-
Feasibility of helically stiffened construction for a formula racing car structural shell
… cross-section shells with the cockpit cutout and reinforcements usually present in real racing car structural shells, ±4S' helically stiffened shells are 200% stiffer in torsion than sandwich shells. For square cross-section shells, the torsional stiffness improvement obtained with the helical …
Page 1 of 8