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 964 for “"Graded"”.
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Mechanics of graded wrinkling
… in the wrinkle topography can be created. The graded wrinkles possess varying amplitudes and wave lengths along the length of the film. In this work, the mechanics of graded wrinkling are first investigated through analytical modeling. Then, using finite element analysis, different aspects of …
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Epsilon multiplicity for graded algebras
… epsilon multiplicity of reduced standard graded algebras over an excellent local ring exists as a limit. We also obtain some important special cases of Cutkosky's results concerning epsilon multiplicity, as corollaries of our main theorem.
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Carbonation of Functionally Graded Concrete
In this thesis, the carbonation of functionally graded concrete is investigated through a combination of experimental and analytical approaches. The properties of functionally graded concrete vary throughout the cross-section to satisfy performance requirements in a resource-efficient manner. In …
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Graded rings, modules and algebras.
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mathematics, 1970.
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Indentation of plastically graded materials
… of the mechanics of indentation of plastically graded materials is completed in this work by recourse to finite element (FE) computations. On the basis of a large number of detailed computational simulations, a general methodology for assessing instrumented indentation response of plastically …
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Properties of functionally graded concrete slabs
… research was being conducted into functionally-graded, or two-lift pavements. Two-lift pavements represent a significant advancement in the design of roadways as lower quality aggregates, such as recycled concrete aggregates (RCA) and fractionated recycled asphalt pavement (FRAP) can be …
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Differential posets and dual graded graphs
… thesis I study r-differential posets and dual graded graphs. Differential posets are partially ordered sets whose elements form the basis of a vector space that satisfies DU-UD=rI, where U and D are certain order-raising and order-lowering operators. New results are presented related to the …
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MIXED GRADED MODULES IN HOMOTOPY LIE THEORY
L’obiettivo principale di questa tesi è lo studio dei complessi misti graduati e del loro possibile ruolo nell’ambito della ricerca nella teoria della deformazione. In particolare, mi sono occupato della relazione tra complessi misti graduati e algebre di Lie derivate. I due contributi principali …
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Fatigue crack propagation in functionally graded materials
Propagation of cracks in functionally graded materials (FGMs) under cyclic loading was investigated via experiments and finite element (FE) analysis. Alumina-epoxy composites with an interpenetrating-network structure and tailored spatial variation in composition were produced via a multi-step …
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On tensor autoequivalences of graded fusion categories
… are tensor invertible, provide our prototype for graded fusion categories. Such categories are well understood; each pointed fusion category has tensor multiplication determined (up to equivalence) by a finite group, and tensor associativity determined (up to equivalence) by a third cohomology …
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Seepage induced instability in widely graded soils
Internal instability of a widely graded cohesionless soil refers to a phenomenon in which its finer particles migrate within the void network of its coarser particles, as a result of seepage flow. Onset of internal instability of a soil is governed by a combination of geometric and hydromechanical …
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Programming and static analysis with graded monads
… research in program semantics has focussed on graded monads, a useful generalisation of monads which allow the programmer to establish useful properties of a computation purely from their type of a computation. They have been used to represent a variety of properties traditionally inferred by …
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Graded artin algebras, coverings and factor rings
Let (Γ,ρ) be a directed graph with relations. Let F: Γ’ → Γ be a topological covering. It is proved in this thesis that there is a set of relations ρ̅ on Γ such that the category of K-respresentations of Γ’ whose images under the covering functor satisfy ρ is equivalent to the category of …
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A Structure Theorem for RO(C2)-graded Cohomology
… We present a structure theorem for the RO(C2)-graded Bredon cohomology of C2-spaces using coefficients in the constant Mackey functor F2. We show that, as a module over the cohomology of the point, the RO(C2)-graded cohomology of a finite C2-CW complex decomposes as a direct sum of two basic …
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Design, fabrication, and characterization of functionally graded materials
… the feasibility of fabricating custom designed, graded materials using Laser Metal Deposition (LMD) that will cater for functionality and unconventional repair. The ultimate goal of the project is to establish the versatility of LMD for fabricating advanced materials and tackling problems that …
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Ideals and Maximal Commutative Subrings of Graded Rings
… ideals and (maximal commutative) subrings of graded rings. The motivation for this investigation originates in the theory of C*-crossed product algebras associated to topological dynamical systems, where connections between intersection properties of ideals and maximal commutativity of certain …
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Fabrication, Characterization and Modeling of Functionally Graded Materials
… cells onto a substrate through a functionally graded material (FGM) with water tubes cast inside, through which water flow serves as both a heat sink and a solar heat collector. Due to the unique and graded material properties of FGMs, this novel design not only supplies efficient thermal …
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Mixed-Mode Crack Propagation in Functionally Graded Materials
… describing the crack tip fields in functionally graded materials (FGMs) include stress intensity factors (SIFs) and T-stress (non-singular stress). These two fracture parameters are important for determining the behavior of a crack under mixed-mode loading conditions in brittle FGMs (e.g. …
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Characterization of functionally graded materials through fractal geometry
Functionally Graded Materials are the material systems whose properties vary spatially through the solid. These material systems are fairly new and though expensive to fabricate; they serve as excellent engineering materials for various applications. The material system we consider in this work is …
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