998 resultados para 25th volume
Resumo:
PURPOSE: To describe and evaluate a new method for measuring anterior chamber volume (ACV). DESIGN: Observational case series. METHODS: The authors measured ACV using the anterior chamber (AC) optical coherence tomographer (OCT) and applied image-processing software developed by them. Repeatability was evaluated. The ACV was measured in patient groups with normal ACs, shallow ACs, and deep ACs. The volume difference before and after laser peripheral iridotomy (LPI) was analyzed for the shallow and deep groups. RESULTS: Coefficients of repeatability for intraoperator, interoperator, and interimage measurements were 0.406%, 0.958%, and 0.851%, respectively. The limits of agreement for intraoperator and interoperator measurement were -0.911 microl to 1.343 microl and -7.875 microl to -2.463 microl, respectively. There were significant ACV differences in normal, shallow, and deep AC eyes (P < .001) and before and after LPI in shallow AC (P < .001) and deep AC (P = .008) eyes. CONCLUSIONS: The ACV values obtained by this method were repeatable and in accord with clinical observation.
Modelling of Evaporator in Waste Heat Recovery System using Finite Volume Method and Fuzzy Technique
Resumo:
The evaporator is an important component in the Organic Rankine Cycle (ORC)-based Waste Heat Recovery (WHR) system since the effective heat transfer of this device reflects on the efficiency of the system. When the WHR system operates under supercritical conditions, the heat transfer mechanism in the evaporator is unpredictable due to the change of thermo-physical properties of the fluid with temperature. Although the conventional finite volume model can successfully capture those changes in the evaporator of the WHR process, the computation time for this method is high. To reduce the computation time, this paper develops a new fuzzy based evaporator model and compares its performance with the finite volume method. The results show that the fuzzy technique can be applied to predict the output of the supercritical evaporator in the waste heat recovery system and can significantly reduce the required computation time. The proposed model, therefore, has the potential to be used in real time control applications.
Resumo:
Tag & Release is the newsletter for the South Carolina Governor's Cup Billfishing Series, an official program of the South Carolina Department of Natural Resources in cooperation with the South Carolina Department of Parks, Recreation and Tourism and the Harry R.E. Hampton Memorial Wildlife Fund.
Resumo:
Tag & Release is the newsletter for the South Carolina Governor's Cup Billfishing Series, an official program of the South Carolina Department of Natural Resources in cooperation with the South Carolina Department of Parks, Recreation and Tourism and the Harry R.E. Hampton Memorial Wildlife Fund.
Resumo:
Tag & Release is the newsletter for the South Carolina Governor's Cup Billfishing Series, an official program of the South Carolina Department of Natural Resources in cooperation with the South Carolina Department of Parks, Recreation and Tourism and the Harry R.E. Hampton Memorial Wildlife Fund.
Resumo:
Tag & Release is the newsletter for the South Carolina Governor's Cup Billfishing Series, an official program of the South Carolina Department of Natural Resources in cooperation with the South Carolina Department of Parks, Recreation and Tourism and the Harry R.E. Hampton Memorial Wildlife Fund.
Resumo:
Tese de mestrado integrado em Engenharia Biomédica e Biofísica, apresentada à Universidade de Lisboa, através da Faculdade de Ciências, 2014
Resumo:
This is the first critical edition of the works of Andrew Lang (1844-1912), the Scottish writer whose enormous output spanned the whole range of late nineteenth century intellectual culture. Neglected since his death, partly because of the diversity of his interests and the volume of his writing, his cultural centrality and the interdisciplinary nature of his work make him a vital figure for contemporary scholars. This volume covers his work in anthropology, including that on fairy tale, folklore, the origins of religion, and psychical research.
Resumo:
This is the first critical edition of the works of Andrew Lang (1844-1912), the Scottish writer whose enormous output spanned the whole range of late nineteenth-century intellectual culture. Neglected since his death, partly because of the diversity of his interests and the volume of his writing, his cultural centrality and the interdisciplinary nature of his work make him a vital figure for contemporary scholars. This volume covers his work on literary criticism, history and biography.
Resumo:
This paper reports on the analysis of tidal breathing patterns measured during noninvasive forced oscillation lung function tests in six individual groups. The three adult groups were healthy, with prediagnosed chronic obstructive pulmonary disease, and with prediagnosed kyphoscoliosis, respectively. The three children groups were healthy, with prediagnosed asthma, and with prediagnosed cystic fibrosis, respectively. The analysis is applied to the pressure–volume curves and the pseudophaseplane loop by means of the box-counting method, which gives a measure of the area within each loop. The objective was to verify if there exists a link between the area of the loops, power-law patterns, and alterations in the respiratory structure with disease. We obtained statistically significant variations between the data sets corresponding to the six groups of patients, showing also the existence of power-law patterns. Our findings support the idea that the respiratory system changes with disease in terms of airway geometry and tissue parameters, leading, in turn, to variations in the fractal dimension of the respiratory tree and its dynamics.