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 “"angle difference"”.
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Back to Back Active Power Filter for Multi-Generator Power Architecture with Reduced dc-link Capacitor
… By shunting the two gensets with 30° phase angle difference, a single phase-shift transformer effectively eliminates 5th and 7th harmonics. It achieves a significant size and weight reduction compared to a 12-pulse converter while keep the comparable harmonic cancellation performance. …
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Using Z-hadron correlations to probe the medium response in PbPb and pp collisions at √ˢNN = 5.02 TeV
… 40 <pT <200 GeV/c are analyzed. The azimuthal angle distributions with respect to the Z bosons, whih are sensitive to modification of in-medium parton shower and medium recoils, are measured in central PbPb collisions. A significant modification of the two particle correlation in pseudorapidity …
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Performance Comparison Between Music And Esprit Algorithms For Direction Estimation Of Arrival Signals
… of array elements, number of incoming signals, angle difference between the incoming signals, number of the samples taken of signal, processing time and SNR ratio.</p> <p>These two algorithms were implemented with MATLAB and SIMULINK for the experimental purpose. After all the experiments …
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Performance comparison between Dual-blinder and a Phasor-based Out of Step detection functions using hardware in the loop test
… based on the derivatives of the voltage phase angle difference between the two areas, is evaluated against the Dual-Blinder method using a real-time digital simulator, a protective relay, and a Synchrophasor Vector Processor (SVP). The evaluation shows that the Phasor-Based function predicted …
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Soft Bending Actuator for Body-Powered Application
… braiding fibres along the axis at two different angles on each half of the cylindrical actuator. This angle difference allows the actuator to bend in one direction when pressurized by a pneumatic or hydraulic source. Furthermore, winding the fibres continuously along the axis increases bending by …
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Wide Area Power System Monitoring Device Design and Data Analysis
… study is to take a first in depth look at the angle data collected by FDRs. Different data conditioning techniques are proposed and tested before one is chosen. The chosen technique is then used to extract useable angle data for angle analysis on eight generation trip events. The angle …
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Circadian rhythm of cortisol and estradiol in healthy women
… was hypothesized that a cortisol-estradiol phase angle difference (PAD) would exist that would correlate with optimal affect, sleep quality and energy.</p> <p> A small scale, comparative, correlational design was used to test the hypothesis. A sample of twenty-three university women (11 …
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Peak-ratio analysis method for enhancement of LOM protection using M class PMUs
… ROCOF, Phase Offset Relay (POR) and Phase Angle Difference (PAD) methods. It is shown that the PRAM technique exhibits comparable performance to the others, and in many cases improves upon their abilities; in particular for systems where the inertia of the main power system is reduced, …
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PMU-Based Applications for Improved Monitoring and Protection of Power Systems
… monitor stress of a power system in real-time. Angle difference between buses located across the network and voltage sensitivity of buses lying in the middle are found to accurately reflect the static and dynamic stress of the system. The results indicate that by setting appropriate alerts/alarm …
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Fast order-recursive Hermitian Toeplitz eigenspace techniques for array processing
… of RITE and C-RITE permit estimation of angles for all intermediate orders imbedded in the original problem, facilitating the earliest possible estimation of the number and location of radiating sources. The detection algorithm based on RITE or C-RITE can then stop, thereby minimizing the …
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State Estimation and Voltage Security Monitoring Using Synchronized Phasor Measurements
… The relationship of widening bus voltage angle separation with network stress is exploited and its connection to voltage security and margin to voltage collapse established. Decision trees utilizing angle difference attributes are utilized to classify the network voltage security status. …
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Biomechanical measures of lower limb variability, and prediction of non-contact knee injuries risk factors in male athletes
… of frontal plane projection angle (FPPA) and hip adduction angle difference between legs and over season, and its relationship with injury. Methodology: After assessing the validity and reliability of FPPA and hip adduction angle during single leg squat (SLS) and single leg …