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 23 for “"Occurrence Frequency"”.
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Limb scatter measurements of high altitude cloud distributions
… the distribution of cirrus cloud top occurrences from OSIRIS limb scattering radiance profiles is presented. The technique involves computing residual profiles by comparing normalized measured radiance and modelled molecular density profiles where mismatches between the two traces …
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Distribuição longitudinal, dieta alimentar e ciclo reprodutivo de Pimelodella lateristriga (Osteichthyes, Siluroidei) no rio Ubatiba, Maricá, Rio de Janeiro
… Stomach contents have been analysed according to occurrence frequency and a variety of items has been verified: the most prevailing being the Chironomidae larvae. The feeding activity rhythm has been stablished from crepuscular to nocturnal, with occasional peaks all day over. This analysis …
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Hydrological disasters : designing to shelter in place
… shown by increasing trends in natural disaster occurrence frequency and damage and reconstruction costs. Cost increase is due in part because disaster events are more destructive, but also because of overbuilding and high housing density located within high risk areas. First, using several …
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A multi-factor model for evaluating manufacturing defect opportunities in six sigma analysis
… the following factors: (i) defect severity, (ii) occurrence frequency, (iii) detection ease, (iv) correction time, and (v) cost impact. This new equation accounts for all possible differentiating characterizations between possible defects. In effect we get a scaled down number of defect …
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An Observational Investigation on Gravity Wave Characteristics and Propagation in the Lower Stratosphere and Mesopause
… observation provide robust statistics of high-frequency gravity wave in the midlatitudes. Poleward wave propagation preference during summer and equatorward wave propagation preference during winter are observed over Maui. They are also opposite to the seasonal mean meridional wind direction …
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Hungry for Information: Exploring Public Perception of nanotechnology food product labeling using conversational settings
… themes and selecting main themes based on occurrence frequency. In-group worksheets and post-group surveys were also administered covering a range of nanotechnology food topics and were descriptively analyzed. Content analysis results, in conjunction with worksheet and post-survey data, …
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Characterization of Tropical Clouds Using Multi-Satellite Observations
… radar reflectivity data in a CFAD (Contoured Frequency by Altitude Diagram) framework and apply a clustering analysis to identify distinct clusters. The properties of these clusters were also further analyzed with regards to their cloud top height and radar echo top height. In addition, they …
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Statistical study of oxygen+ transport from the cusp to the plasmasheet
… Cluster/CODIF data, we have determined the occurrence frequency of the cusp-source O+ in the magnetotail to determine where and when it is observed. The results show that the probability to observe O+ along the transport path is high even during nonstorm times, although, as expected, the …
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Boundary layer development from transition provoking devices
… in the turbulent spot source density and occurrence frequency, and can result in substantial non-uniformity of the boundary layer if the transition region is long.<br/><br/>The resulting low Reynolds number turbulent boundary layer exhibits a moderate increase in the additive constant in …
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Entity-relation search: context pattern driven relation ranking
… between a pair of entities and ranks simply by occurrence frequency. The monotone pattern extraction, adopted in their relation phrase extraction model, provides high quality entity relations but also fail to return many potential true relations in the corpus, which has been explained in Section …
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Neurocognitive plasticity in verb bias learning in children and adults
… bias in the first place? In natural language, frequency-sensitive verb argument structure is closely intertwined with the event information delivered by the verb and its argument, which raises complexity in teasing apart the information from linguistic co-occurrence frequency and the …
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Long-term investigation of the lunar tide in the equatorial electrojet during stratospheric sudden warmings
… number of lunar tidal enhancements and thus the occurrence frequency of historic SSW events between 1926 and 1952 is similar to the occurrence frequency of the known SSW events from 1952 onwards. Next to the classic SSW definition, the concept of polar vortex weakening (PVW) is utilized in this …
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Occurrence Statistics and Driving Mechanisms of Ionospheric Ultra-Low Frequency Waves Observed by SuperDARN Radars
Ultra-low frequency (ULF; 1 mHz - 1 Hz) waves are known to play an important role in the transfer of energy from the solar wind to Earth's magnetosphere and ionosphere. The Super Dual Auroral Radar Network (SuperDARN) is an international network consisting of 35 low-power high frequency (HF: 3-30 …
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Mitigating Insider Threat Risks in Cyber-physical Manufacturing Systems
… to the arbitrary block generation time and block occurrence frequency. The service-oriented blockchain augmentation is providing physical and digital entities with the blockchain communication protocol through a service layer. In this way, multiple entities are integrated by the service layer, …
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Incorporating plant community structure in species distribution modelling: a species co-occurrence based composite approach
… I used a record of nine endemic species occurrences from the Athabasca Sand Dunes in northern Saskatchewan to assess five different modelling algorithms including modern regression and machine learning techniques to understand how species distribution characteristics influence model …
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Incorporating plant community structure in species distribution modelling: a species co-occurrence based composite approach
… I used a record of nine endemic species occurrences from the Athabasca Sand Dunes in northern Saskatchewan to assess five different modelling algorithms including modern regression and machine learning techniques to understand how species distribution characteristics influence model …
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Endoscopic Incidence of Upper Gastrointestinal Submucosal Tumors and Endosonographic Findings
… were diagnosed with SMTs. The number of tumor occurrence by location resulted to show 220 esophageal SMTs(0.4%), 434 gastric SMTs(0.89%), and 53 duodenal SMTs(0.11%). 70 esophageal SMTs cases, where EUS was performed, showed that the tumors were most frequently found to have originated from the …
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Modeling and Managing Engineering Changes in a Complex Product Development Process
… process that are potentially associated with the occurrence and magnitude of iterations and Engineering Changes (ECs), developing means to quantify these characteristics as well as the interrelationships between them in a computer simulation model, testing the effects of different parameter …
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Cluster damage robustness analysis and space independent community detection in complex networks
… language acquisition – investigates the word co-occurrence network of children, as they develop their linguistic abilities at an early age. Similarly to the previous case study, the network model consists of six children and three discrete developmental stages. These networks are not embedded in …
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Self-paced treadmill as a rehabilitation tool for recovering functional gait in people with stroke
… tools such as the variance ratio and the occurrence frequency provide a means of quantifying this muscle activity including variability and phasic activity. These tools may help to understand the potential of walking simulators (self-pacing treadmills synchronised with virtual reality) as …
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