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 74 for “"unfiltered"”.
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Unfiltered?: A Content Analysis of Pro Athletes' "Twitter" Use.
<p>As new media grow, so do the users who navigate the virtual world. People and organizations are forced to adapt in order to stay relevant in a technologically driven marketplace. The sports world has been changed drastically because of new media. Athletes no longer communicate with the general …
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Methodological advancements for improving performance and generating ensemble ecological niche models
… of this species using three distinct datasets: unfiltered, spatially filtered, and rarefied unfiltered localities. To quantify overfitting and model performance, we calculated evaluation AUC, the difference between calibration and evaluation AUC (= AUCdiff), and omission rates. Models made with …
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The paths of glory : structure, selection, and leaders
… If these constraints are sufficiently weak an unfiltered leader can have a very large impact on outcomes. Such leaders are likely to display a high degree of variance in their performance. The theory is tested quantitatively using historians' rankings of U.S. Presidents. Unfiltered leaders …
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Geochemical drivers of Mn removal in drinking water reservoirs under hypolimnetic oxygenation
… oxygen. In experiments using filtered and unfiltered water from the two reservoirs, we observed significant Mn removal in experiments with unfiltered water, suggesting that particles may remove Mn by catalyzing oxidation or nucleating Mn oxide precipitation. Mn removal occurred at 0.05 d-1 …
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A Comparison of five radiographic systems to D-speed film in the detection of artificial bone lesions
… The Kodak filtered, Schick filtered, OpTime unfiltered, Schick unfiltered, and Dexis filtered images were significantly better at lesion detection compared to D-speed film. Also, all filtered digital images were significantly better at lesion detection than D-speed film.
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HEAD MOTION EVALUATION AND CORRECTION IN MAGNETOENCEPHALOGRAPHY
… data accuracy and resemblance when applied to unfiltered/pre-filtered data respectively. The localization precision of GLM reduces approximately linearly with the motion extent. GLM improves localization accuracy in the unfiltered/pre-filtered recordings by a factor of 2-4. GLM does not change …
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Test and evaluation of an image-matching navigation system for a UAS operating in a GPS-denied environment
… (UAV). Preliminary results indicated that unfiltered position estimates can be accurate to the order of roughly 100 meters when flying at two kilometers above the surface and unfiltered orientation estimates are accurate to within a few degrees. This thesis examines developed algorithms on …
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Effects of installing point-of-use filters intended for lead removal on drinking water quality
… carbon were measured. Lead concentrations in all unfiltered samples were below 2.25 ppb, but post-stagnation, over half of filtered samples exceeded 5 ppb. The filters effectively removed free chlorine (99% reduction), and residual chlorine decayed with stagnation. There were higher concentrations …
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An ARM-based sequential sampling oscilloscope
… display at least 10dB of SNR improvement for unfiltered signals and at least 60dB of SNR improvement for aggressively filtered signals.
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Experimental cultivation of the red seaweed, Gracilaria gracilis (Rhodophyta) in land-based tank culture systems on abalone farms in the Western Cape, South Africa
… were stocked with at 2 kg m⁻² supplied with unfiltered seawater (24 and 4 volume exchanges d⁻¹) JSP and I&J, respectively. This study also tested the efficiency of G. gracilis as a biofiltering species as well as investigating the effectivenss and influence of nutrient-enriched seawater i.e. …
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"MODEL COMPLEXITY AND VARIABLE SELECTION IN MAXENT NICHE MODELS: ANALYSES FOR RODENTS IN MADAGASCAR"
… models than Maxent’s default settings. In the unfiltered dataset, the models selected as optimal by AICc had substantially fewer parameters than those selected by the sequential technique. In contrast, both techniques converged on similar settings when the spatially filtered dataset was used, …
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ΜΕΛΕΤΗ ΚΑΤΑΝΟΜΗΣ ΚΑΙ ΕΠΑΝΑΔΙΑΛΥΣΗΣ ΒΑΡΕΩΝ ΜΕΤΑΛΛΩΝ ΣΕ ΝΕΡΑ ΚΑΙ ΙΖΗΜΑΤΑ ΠΟΤΑΜΩΝ ΤΗΣ ΒΟΡΕΙΑΣ ΕΛΛΑΔΑΣ
… METALS IN FILTERED WATER, SUSPENDED SOLIDS AND UNFILTERED SAMPLES WAS ALSO STUDIED. IN ORDER TO STUDY THE REMOBILIZATION OF HEAVY METALS FROM RIVER SEDIMENTS THE FOLLOWING COMPLEXING AGENTS-NTA-EDTA-STPP-TRITON-X100- PO43-, NO3- AND HUMIC ACID WERE EXAMINED VERSUS SHAKING TIME AND AGENTS …
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Visual Framing: A Study in Face-ism from the Websites for the 108th United States Congress.
… numbers to target a market with a message unfiltered by the media. This content analysis examined the website front-screens for the members of the 108th United States Congress to determine if the photographic images displayed reinforced the media's stereotypical frame of female politicians. …
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Kalman filtering of IMU sensor for robot balance control
… where possible, to the CM trajectory based on unfiltered sensor measurements of the states. For the simple case of inverted pendulum control, it was determined that noise and error in the IMU are sufficiently small that Kalman filtering is not necessary when all states can be measured, but …
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Removal Of Refractory Tkn From An Effluent Wastewater Using Sodium Ferrate
… for Total Kjeldahl Nitrogen (TKN) (filtered and unfiltered), chemical oxygen demand (COD) (filtered and unfiltered), total suspended solids (TSS), nitrate (NO3-N), nitrite (NO2-N), and heterotrophic plate count (HPC). As a result, more than 70% of the soluble TKN was removed by chemical and …
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Classification of ADHD Using Heterogeneity Classes and Attention Network Task Timing
… used to train and test the KNN model. With unfiltered Dataset 1 data over the entire ANT1 period, the most accurate EEG channel pair achieved an overall vector classification accuracy of 94%, and the 5th percentile of classification confidence was 80%. These metrics suggest that using KNN of …
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Heavy Metal Concentrations in Springs and Sinkholes in and Around Springfield, Greene County, Missouri
… barium at 95% confidence between filtered and unfiltered (samples filtered prior to an after treatment with nitric acid, respectively) samples. Differences were also observed at 95% confidence for barium concentrations between different springs. However, the concentrations of barium are below …
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Frequency, Attention, and Phonetic Characteristics that Influence the Right-Ear Advantage for Speech Perception
… attention equally. Stimuli in Experiment 1 were unfiltered, high-pass filtered, or low-pass filtered, and stimuli in Experiment 2 were presented with no noise, white noise, high-pass filtered noise, or low-pass filtered noise. The initial consonants of each dichotic pair were categorized …
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Health and water quality monitoring of Pure Home Water's ceramic filter dissemination in the northern region of Ghana
… collected from households without a filter, and unfiltered and filtered water samples were collected from households with a filter. These samples were tested for turbidity and for bacterial contamination using membrane filtration, 3MTM PetrifilmTM, and hydrogen sulfide techniques. The surveys …
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Statistically robust Pseudo Linear Identification
… In the original PLID the measurements are used unfiltered in the covariance calculation.
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