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 12 of 12 for “"order frequency"”.
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A Finite Element, Reduced Order, Frequency Dependent Model of Viscoelastic Damping
… curve fit is expressed by minioscillators. The frequency dependence of the complex modulus is accounted for by the addition of internal, or dissipation, coordinates. The dissipation coordinates make the viscoelastic model several times larger than the original. The trade off for more accurate …
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Characterization of nonlinearity parameters in an elastic material with quadratic nonlinearity with a complex wave field
… research is to examine the generation of second-order frequency effects and static effects which may be used to determine the nonlinearity present in the material. This is accomplished by extracting the amplitudes of those effects in the frequency domain and analyzing their dependency on the …
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Full-wave analysis of large conductor systems over substrate
… of D line integrals. In addition, a set of high-order, frequency-independent basis functions is developed with the ability to parameterize the frequency-dependent nature of the solution space, hence reducing the number of unknowns required to capture the interconnects' frequency-variant behavior.
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Identifying Success Factors in the Wood Pallet Supply Chain
… their products directly to customers and the order lead time for raw materials to shipment was 1 to 10 days for 81.9% of companies. The most important factors for purchasing decisions are availability, cost, and reliability of supplier (all rated 4.4 in an importance scale from 1 to 5, …
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A multi-echelon supply chain model for strategic inventory assessment through the deployment of kanbans
… of the parameters associated with lead-time, order frequency, inventory value and order costing. The pilot for the simulation focuses on the parts data for three earthmoving products across eight echelons, but scales to n products across m echelons. Our results show that this approach …
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The syntax and processing of relative clauses in Mandarin Chinese
… theories, canonical/non-canonical word order (frequency) theories, theory based on accessibility of syntactic positions and perspective shift theory all account for the facts reported in other SVO languages, results from Chinese are only compatible with resource-based theories and …
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Development of a total landed cost and risk analysis model for global strategic sourcing
… time, inventory carrying cost, freight cost, order frequency, and order quantities in the dynamic cost model, PKI is able to understand supply chain cost trade-offs. The model developed for this project is dynamic to allow multi-variable scenarios to be assessed simultaneously, thus increasing …
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Operational analysis of an inventory location optimization algorithm and RFID implementation in a distribution center
… to inefficiencies in the form of unfulfilled orders as well as additional time and effort expended by material handlers. To cater to this problem, the first project revolves around the development of an inventory location optimization algorithm by taking into consideration the order frequency …
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Integrated Tunable LC Higher-Order Microwave Filters for Interference Mitigation
… as the traditional off-chip filters are fixed frequency and bulky. Therefore, tunable filtering is a critical building block for the reconfigurable RF front-ends and on-chip implementations are needed to meet size and weight constraints. On-chip passive components are lossy, especially …
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Identification of linear and nonlinear systems using multisine signals with a gas turbine application
… to allow the direct measurement of points on the frequency-domain Volterra kernels (higher-order frequency response functions) of a nonlinear system.<br/><br/>The second part of the thesis deals with gas turbine modelling, with the aim of estimating models which can be used to verify the …
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Frequency Stability Constrained Grid Operation with High Penetration of Renewables
… presents considerable challenges in maintaining frequency stability, especially following disturbances.</p> <p>Two possible solutions are proposed to address the first issue. Firstly, a speedy real time generation dispatch can be scheduled to allocate generation resources within short time …
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Design, optimization and analysis techniques of non-linear devices based on graphene or highly ordered pyrolytic graphite for terahertz system applications
… harmonic content. These devices are based on frequency multiplication and frequency mixing on mono- and multi-layer graphene films which are used for the generation and/or detection of submillimeter wave/ low THz band signals. The desired frequency multiplication and mixing performance of the …