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 14 of 14 for “"Dmax"”.
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On the role of correspondence noise in human visual motion perception. A systematic study on the role of correspondence noise affecting Dmax and Dmin, using random dot kinematograms: A psychophysical and modelling approach.
… (RDKs). The performance measures of interest are Dmax and Dmin i.e., the largest and smallest inter-frame dot displacement, respectively, for which motion can be reliably detected. Dmax and threshold coherence (i.e., the smallest proportion of dots that must be moved between frames for motion to …
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Low- and high-level motion deficits in amblyopia: studies of maximum motion displacement
… motion processing. Maximum motion displacement (Dmax) is the largest dot displacement at which the direction of motion for a RDK can be correctly discriminated. Strabismic and anisometropic amblyopia represent two distinct subtypes of amblyopia and have been proposed to have different neural …
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Observation and simulation of mid-latitude ice clouds
… in term of their maximum particle dimension (Dmax). In the second chapter, different definitions of Dmax for non-spherical particles recorded by 2D probes are compared. It is shown that derived PSDs can differ by up to a factor of 6 for Dmax < 200 μm or Dmax > 2 mm. The large differences for …
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Volumetric modulated Arc Therapy versus 3D conformal radiotherapy in the treatment of locally advanced cervical cancer. A single institution, comparative dosimetric study
… and data on treatment parameters for PTV D50%, Dmax, Dmean, Conformity Index (CI), Homogeneity Index, Treated Volume (TV), Irradiated Volume (IV) and OAR constraints; femoral heads, bladder, bowel bag, rectum and bone marrow were collected. Results: Of the 45 patients assessed, VMAT showed …
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Characterization of microporous ECTFE membranes exposed to different liquid media and ?-radiation and nanoparticle microfiltration through such membranes
… based maximum pore diameters (dmax) of solvent-treated membranes were: dmax, TOA > dmax, Xylene/TOA > dmax, Xylene > dmax, Ethanol > dmax, Virgin. In FTIR and Raman spectra, TOA introduced extra peaks contributing to C-H stretching and deformation. Raman spectra of …
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Detectors in Medical Physics Measuring Dose by Detectors
… doses were measured at the depth of 10 cm and at dmax for two energies 6 MV and 10 MV on the Elekta machine. This was done by using only two points and comparing the results with percentage depth dose (PDD) for the depth dose curve for both energies. In addition the doses were obtained by using …
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Development of a Monte Carlo simulation model of the signal formation processes inside photoconducting materials for active matrix flat panel direct detectors in digital mammography
… πρωτογενών ηλεκτρονίων (ακτίνας R=200 μm, βάθους Dmax=320 μm), ενώ το CdTe το μέγιστο (R=500 μm, Dmax=660 μm), (vi) τέλος, υπάρχουν σημαντικές ενδείξεις ότι τα PbI2 και HgI2 αποτελούν τις καλύτερες επιλογές φωτοαγώγιμου υλικού.
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Calorimetric studies of microbiological systems
… compared with Aquacel-Ag. By determining in Dmax (the minimum inhibitor concentration), Aquacel-Ag in SWF was found to be 1,9-fold more efficient for S. aureus, 2.4-fold more efficient for P. aeruginosa and 3.2-fold more efficient in inhibiting growth of mixed cultures, compared with silver …
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Δημιουργία, εκπαίδευση και εφαρμογή knowledge based planning (KBP) μοντέλων σε VMAT πλάνα ακτινοθεραπείας
… (V5Gy, p=0.041) και νωτιαίο μυελό/σωλήνα (Dmax, p=0.034). Αντίθετα, το εξειδικευμένο μοντέλο AAA εμφάνισε αύξηση της δόσης στον πνευμονικό ιστό, λόγω των δοσιμετρικών συμβιβασμών (trade-off). Οι έλεγχοι PSQA έδειξαν υψηλά ποσοστά Gamma Passing Rate για όλα τα μοντέλα. Συμπεράσματα: Τα KBP …
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Seedling xylem anatomy of two Banksia species relative to availability of groundwater
… (vessel diameter (Vd), maximum vessel diameter (Dmax), vessel density (Dv) and vessel length (VL)) in root and stem tissue samples using ImageJ software. Analysis of vessel traits identified significant vascular tapering in both Banksia attenuata and B. littoralis, i.e. a low density of large …
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Efeitos da cal e do cimento na modificação dos solos para fins rodoviários: mecanismos de reação, parâmetros de caracterização geotécnica e resistência mecânica
… nos parâmetros IP, constituição granulométrica, γdmax e nos valores de pH dos solos, bem como pela dissolução dos minerais de sílica e alumina da fração argila do solo; (v) a adição dos estabilizantes aos solos produziu aumentos nas suas resistência à compressão não-confinada associados, na …
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Η ενεργός τεκτονική - νεοτεκτονική του ΝΔ Αιγιακού τόξου με χρήση μεθόδων ποσοτικής τεκτονικής και GIS
… για τα Κύθηρα. Με τη βοήθεια των διαγραμμάτων Dmax/L διαπιστώθηκε ότι τα περισσότερα ρήγματα βρίσκονται στο δεύτερο στάδιο εξέλιξης της αλληλεπίδρασης, όπου τα ρήγματα έχουν πρόσφατα συνδεθεί μεταξύ τους και αρχίζουν να αλληλεπιδρούν. Το κρίσιμο μέσο μήκος για τα ρήγματα των ρηξιγενών ζωνών …
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The Effects of Four Weeks of High Intensity Interval Training and β-hydroxy-β-methylbutyric Free Acid on the Onset of Neuromuscular Fatigue
… The PWCFT values (W) were determined using a DMAX method. The EMG amplitude root mean square (µVrms) values were used to generate a third-order polynomial regression (3PR) representing the increase in µVrms versus time of the GXT. The onset of fatigue (TF) was defined as the x-value (time, s) …
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Adaptive Radiation Therapy Of Prostate Cancer
… bladder complication was directly related to Dmax which was at the same magnitude in the bladder no matter which margin was applied.</p> <p>Re-optimization was performed at the 10th, 20th, 30th, and 40th fraction to evaluate the effectiveness to limit OAR dose while maintaining the target …