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 40 for “"motion characteristics"”.
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Effect of Ground Motion Characteristics on the Seismic Response of Torsionally Coupled Elastic Systems
… investigation of the effects of ground motion characteristics, especially its multi-directional character, on the response of torsionally coupled elastic structural systems. The ground motion model is probabilistic and is founded on the assumption of the existence of ground motion …
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The Use of Ceftiofur Sodium in the Extension and Cooled Storage of Equine Semen: Its Effects on Motion Characteristics, pH, Osmolality, and Bacterial Growth
… commonly utilized antibiotics on spermatozoal motion characteristics, semen osmolality and pH, and bacterial growth during cooled storage for 48 hours. Semen was collected and pH measurement, osmolality measurement, and aerobic culture were undertaken for each ejaculate (total of thirteen from …
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Effect of seminal plasma on cryopreservation and function of bovine spermatozoa
… motile sperm and percent intact acrosomes) and motion characteristics (average path velocity, VAP; curvilinear velocity, VCL; and straight line velocity, VSL) of cryopreserved ejaculated spermatozoa (Experiment 1) and cauda epididymal spermatozoa, both fresh and frozen (Experiment 2).2) …
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Constraint Analysis and Theoretical Development of Multi-Furcation and Reconfiguration in Mechanisms
… in mechanisms including recognition of motion branches, factors causing motion branches and how these factors result in different motion branches in serial and parallel mechanisms by line geometry. Among these factors, relative orientations of joint-axes and the corresponding …
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Fixed-wing Classification through Visually Perceived Motion Extraction with Time Frequency Analysis
… aircraft using vision systems to measure their motion characteristics is explored. It builds on the assumption that at least continuous visual detection or at most visual tracking of an object of interest is already accomplished. Monocular vision is in part limited by range/scale ambiguity, …
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One-dimensional site response analyses in potentially liquefiable soil profiles
… understanding of the soil properties and ground motion characteristics. The limitations of simplified liquefaction assessment methods have prompted an increase in the use of non-linear dynamic analysis methods. Focusing on onedimensional site response of a soil column, this thesis validated a …
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Andrological Methods of Predicting the Pregnancy Outcome of an <i>in vitro</i> Fertilization Program
… obtained for IVF were analyzed. Major sperm motion characteristics (such as sperm mean velocity and linearity), adenosine triphosphate (ATP), creatine kinase (CK) activity in whole semen and sperm, hypoosmotic swelling test (HOST), and sperm morphology were evaluated.</p>
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Prediction of seismic design response spectra using ground characteristics
… Correlation analyses between various ground motion characteristics such as peak displacement, velocity, acceleration and root mean square acceleration are carried out for each group. Smoothed design spectra for relative and pseudo velocities and relative acceleration responses of single …
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Hierarchical music structure analysis, modeling and resynthesis : a dynamical systems and signal processing approach
… and signal processing perspective, focusing on motion per se independently of particular musical systems or styles. The point of departure is the construction of a state space that represents geometrically the motion characteristics of music. We address ways in which this state space can be …
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Application of Wavelet Transform to Endurance Time Analysis Method for Performance-based Seismic Design
… but the number of reliable recorded ground motion data for a given site is often limited. In addition, the use of present methodologies to modify existing earthquake records to match site conditions could change the relationship between the recorded earthquake characteristics and their …
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Numerical Analysis on Seismic Response of Cantilever Retaining Wall Systems and Fragility Analysis on Motion Response
… compared with various analytical solutions. The motion characteristics of the retaining wall during the earthquake were also considered. The relative displacement of the walls with various backfill cohesions, under different ground motions, and free-field PGAs were investigated. Current …
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Innovative techniques for seismic-resistant bridge columns under ground motion excitations
… using LS-DYNA software. The effects of ground motion characteristics including far-field motions, near-fault motions without forward-directivity, near-fault motions with forward-directivity, and near-fault motions with fling-step on full-scale column models were investigated. An analytical …
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Performance analysis of H.264 encoder for high-definition video transmission over ultra-wideband communication link.
… Here, standard HD video streams with different motion characteristics are used, and the impact of these parameters change on the reconstructed video quality and the broadcasting data rate are analyzed. Finally, a generalized parameters settings, and a video content dependent settings for an …
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Analyzing the Effect of Moving Resonance on Seismic Response of Structures using Wavelet Transforms
… structures, when subjected to multiple ground motion records that are scaled to consistent ground motion intensity show significant variation in their response. This effect of ground motion randomness on the variation of structural response is defined as Record-to-Record (RTR) Variability. …
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Resistance of a granular medium to normal impact of a rigid projectile
… maximum penetration. In this research, the motion of the projectile during the penetration process was obtained by utilizing microwaves. The motion characteristics were obtained by "bouncing" microwave signals from the bottom of the projectile as it moved downward, and recording the …
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Implications from a geotechnical investigation of liquefaction phenomena associated with seismic events in the Charleston, SC area
… little hard data exists in terms of ground motion characteristics or levels of seismic loading. A two-year field investigation was undertaken by Virginia Tech to study the liquefaction findings associated with the 1886 event from the perspective of geotechnical engineering. This involved …
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Torsional Ground Motion Effects on the Seismic Response of Continuous Box-girder Highway Bridges
… and forces due to their complex dynamic characteristics. Therefore, many studies have been conducted to provide insight into their seismic response characteristics under various types of ground motions. Undoubtedly, investigations relating to both structural components as well as the …
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Robust Feature Tracking in Image Sequences Using View Geometric Constraints
… is a fundamental technique for determining motion characteristics. Once motion is extracted it can be applied to a wide array of other practical applications, including but not limited to automated surveillance, three-dimensional recovery, and object recognition. Traditionally, feature …
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Deep Learning Domain Adaptation in Brain MRI: Investigating Motion Mitigation in Adult and Neonatal Scans
… results in patient movement leading to motion artifacts, particularly among non-compliant patients like newborns. While Deep Learning (DL) models have emerged as powerful retrospective solutions for motion mitigation, their performance is expected to degrade when applied to data from …
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Processes influencing visual awareness during motion-induced blindness
<p>Visual illusions, such as motion-induced blindness, arise when the visual system, balancing speed and efficiency, summarizes the information it receives to form a percept. Motion-induced blindness (MIB) is characterized as the disappearance of a salient target when surrounded by a moving mask. …
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