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 35 for “"lead-lag"”.
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Optimizing the touch tablet: the effects of lead-lag compensation and tablet size
… but results in poor fine positioning ability. A lead-lag compensator which ameliorates this trade-off problem was developed. A lead-lag compensator is composed of a pure position gain component plus an additional velocity gain component. The results indicate that a lead-lag compensator greatly …
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Time series analysis of the lead-lag relationship of freight futures and spot market prices
… The main objective is to find if one market leads the other by a specific time period so that market players can take advantage from that. Three different methods were used to analyze this relationship. The first is a rolling average technique to smooth the strong fluctuations of the market …
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Investigation of a Possible Lead-Lag Relationship Between the Innuitian and Laurentide Ice Sheets, Arctic Canada
… and Innuitian Ice Sheets appear to show a lead-lag relationship during the Late Pleistocene when grain abundances are plotted against time and depth below sea floor. Cores from across the Arctic have been analyzed to determine if this is the case. Of the six IRD events identified, the …
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Proof of Concept Test for Dual-Axis Resonant Phase-Locked Excitation (PhLEX) Fatigue Testing Method for Wind Turbine Blades
… of the most significant load increases is in the lead-lag direction of the wind turbine blades. The increase in lead-lag load is due to the increase in weight of the larger blades. Current wind turbine blades have lead-lag and flapwise loads on the same order of magnitude. The blades of wind …
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Evaluation of hybrid treatment configurations of granular activated carbon and alternative adsorbents for per- and polyfluoroalkyl substances removal from surface water and groundwater
… adsorbent (Fluoro-Sorb®) in combination with lead-lag column configurations to improve the treatment of challenging waters. A rapid small-scale column test (RSSCT) system was used to assess the performance of Filtrasorb 400 (GAC), Fluoro-Sorb® 200 (FS), and CalRes2301 (IX) with three different …
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Evaluation of hybrid treatment configurations of granular activated carbon and alternative adsorbents for per- and polyfluoroalkyl substances removal from surface water and groundwater
… adsorbent (Fluoro-Sorb®) in combination with lead-lag column configurations to improve the treatment of challenging waters. A rapid small-scale column test (RSSCT) system was used to assess the performance of Filtrasorb 400 (GAC), Fluoro-Sorb® 200 (FS), and CalRes2301 (IX) with three different …
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Rotor Blade Flap-Lag Stability and Response in Forward Flight in Turbulent Flows
… of random air turbulence on the coupled flap-lag motion of a helicopter rotor blade in forward flight is investigated. By assuming white noise turbulence and applying a special case of the stochastic averaging procedure, equations are developed which describe the stochastic first and second …
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An examination of bond rating, beta and value-at-risk as financial risk measures.
… to its past or its industry, which could lead to a change in the market perception of the company’s financial performance. This means, there should be a lead-lag relationship between a bond rating downgrade and a change in the beta values of the downgraded companies. Previous studies …
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Essays in Financial Economics
… information, we show that asymmetric patterns of lead-lag predictability cannot be solely explained by information asymmetry. Additional frictions, such as transaction costs, are necessary to produce asymmetry in the cross-auto correlations. We also offer a model with non-fundamental speculation, …
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Accounting disclosure and information environment : a comparative study of U.S. and Japanese security markets with dynamic modelling
… and a stale component. The resulting indefinite lead/lag combined model is operationalized into two definite lead/lag models and an autoregressive model. The study finds that the U.S. and Japanese information environments are significantly different, evidenced by systematic differences in the …
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Design and control of a long stroke fast tool servo
… mass. The FTS controller employs a conventional lead-lag inner loop, an adaptive feedforward cancelation (AFC) outer loop, and command pre-shifting. For the FTS controller, the AFC resonators are placed in the forward path which creates infinite gain at the resonator frequency. The controller for …
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Balancing a two-wheeled Segway robot
… incorporated. A SISO PID compensator and a SISO lead-lag compensator were designed to balance the robot based on the new model; both showed acceptable system responses but were subject to high-frequency oscillation. A SISO state feedback controller was also designed, and it was successful in …
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Real-time control architecture for a multi UAV test bed
… model, a position control block based in lead-lag and PI compensators is developed and simulated. Improvements in trajectory tracking performance are achieved estimating the linear velocity of the aerial robot and incorporating velocity lead-lag compensators to the control approach. The …
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Determinants of Wind Energy Deployment: Infrastructures, Policies, Resources, or Economics?
… models, forward step-wise between modeling, and lead-lag models. The results indicate that demand, electrical transmission availability, and complementary generation assets, as well as the import-export of electricity are important factors in determining where wind energy deployment occurs. In …
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Vibrations of an isolated wind turbine blade using the finite element method
… are formulated for a rotating beam with flap and lead-lag degrees of freedom subjected to nonsymmetric bending. Using a variational approach, a blade finite clement is developed from these equations of motion. Additionally, expressions are formulated for the elastic strain energy and kinetic …
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Identification of performance indicators for nuclear power plants
… analysis, multivariate regression analysis, and lead/lag time analysis, were performed using the historical data collected.
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STUDIES ON HOUSING MARKET DYNAMICS AND COINTEGRATION ANALYSIS WITH LATENT FACTORS
… side conditions. Embedded within the model is a lead-lag structure that allows one to identify from where shocks propagate while allowing for and yielding estimates of cross-sectional differences in housing supply elasticities. The findings indicate that local supply conditions may matter more …
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Three studies in finance
… might well prove useful in studies of, say, lead-lag relationships between cash index and index derivatives markets, and the futures basis measurement. The second essay derives a discrete-time equilibrium pricing formula for European index options where index returns follow an ARMA process …
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Representation learning for regime detection in financial markets
… that using a singular performance metric is misleading in our financial market use cases. We confirm that U-SPDNet performs improved latent feature extraction with better classification performance in stressed and rally market phases, despite achieving lower Out-of-Sample (OOS) backtest scenario …
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Investigation of Control Concepts for High-Speed Induction Machine Drives and Grid Side Pulse-Width Modulation Voltage Source Converters
… simple method is proposed to design the required lead-lag compensator in the active damping loop.
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