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 742 for “"artifact"”.
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Analogue paradigm artifact
Paradigm, analogue and artifact are the elements of a conceptual framework within which constitutive principles of architecture can be explored.
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Artifact removal in digital retinal images
… collected in the population are affected by artifacts, that render them ungradable both by expert graders and by the more recent automatic grading systems.;This work aims to develop an artifact removal strategy able to improve the effectiveness of retinal image grading, in particular for …
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Toward an Artifact-Forward Feminist Design History
… allows for testing the efficacy of an artifact-forward research method, Prownian analysis, as a means of studying such objects. Through this case study, I discover the rich potential in highlighting dimmed design histories through subsidizing the more formal, close looking of an …
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Motion Artifact Reduction in Impedance Plethysmography Signal
… addressing the problem of removing motion artifact from the electrocardiogram (ECG) and photoplethysmography (PPG) signals in the past few years. However, no such study exists for the Impedance Plethysmography (IP) signal. The IP signal can be used to monitor respiration in mobile devices. …
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Subliminal priming as a task-characteristic artifact
… that demonstrations of subliminal priming are an artifact of this violation rather than a real phenomenon.
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Motion Artifact Processing Techniques for Physiological Signals
… performed in the hospital environment, artifacts continue to be a major issue for these systems. The magnitude and frequency of artifacts can vary signi�cantly depending on the recording environment with one of the major contributions due to the motion of the subject or the recording …
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Motion artifact cancellation for wearable photoplethysmographic sensor
… PPG signals are highly susceptible to motion artifacts, and in order for this technique to be useful for heart rate measurements around-the-clock, a motion artifact cancellation mechanism must be implemented to recover the blood volume pulse (BVP) from the corrupted signal. Various digital …
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Artifact detection in physiological parameter trend data
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2003.
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Remembering, Forgetting, and Artifact Deposition in Late Prehistoric Florida
… plays a fundamental role in memory processes. Artifacts are an important means of both connecting with and cutting ties with a real or imagined past. They can be reminders or symbols of connection to other people, places, things, powers, or memories, making them key components within networks …
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Artifact-based reflective interviews for identifying pragmatic epistemological resources
… for research on student epistemology: video artifact-based reflective interview protocols. These protocols begin with video taping students in their natural classroom activities, and then asking the participants epistemological questions immediately after watching selected scenes from their …
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Motion artifact reduction of electrocardiograms using multiple motion sensors
… the most problematic being that of motion artifacts. As an individual wearing a surface ECG moves, their movements will add noise to the signal. This noise is particularly difficult to remove, as it will change depending on the movements of the user and will often fall in the same spectrum …
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Filtering of muscle artifact from the electroencephaiogram [i.e. electroencephalogram]
Thesis: M.S., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 1976
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Towards artifact-free auditory evoked potentials in cochlear implant users
Cochlear Implantate (CIs) sind Prothesen, welche die Funktion der gesunden Cochlear imitieren. Dadurch können bei Personen mit einem sensorineuralen Hörverlust die Hörfunktionen wiederhergestellt werden. Eine noninvasive Methode, um die Rehabilitation des Hörsinnes nach der Implantation zu …
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Steward's southern Great Basin research validated through obsidian artifact sources
… X-Ray Fluorescence (EDXRF) analysis of obsidian artifacts collected from ethnohistoric sites in southern Nevada revealed patterns consistent with Julian Steward's documentation of Western Shoshone socioeconomics. Specific obsidian sources were predicted to be present in artifact samples collected …
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Investigation of the Effects of Timber Harvest On Artifact Locations
… of timber harvesting on surface and near-surface artifact scatters of archaeological materials. The results of these experiments indicate that the impact of certain kinds of timber harvesting techniques is relatively small, suggesting that timber harvesting should not necessarily be considered as …
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The Implications of Lithic Artifact Styles for Current Archaeological Theory
Made available in DSpace on 2014-12-14T05:35:13Z (GMT). No. of bitstreams: 1 7606873.pdf: 5701688 bytes, checksum: 9469e088be830b914ae0d46d20e2fb33 (MD5) Previous issue date: 1975
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Building an artifact : an Olympic archery venue for Williamsburg, NYC
… site of specificity and proposes to design an artifact for the community using the archery venue as a programmatic generator.
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DATE : a framework for supporting design artifact tracking and evolution
Thesis (S.B. and M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1999.
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