introduction: the different factors that affect the camera uniformity of single photon emission computed tomography (spect) technique have been analyzed including peak shift (%) and window width of energy. the effect of peak shift and window width on spect image uniformity has been investigated using a point source to perform intrinsic flood images. methods:the relation between calculated integ...

Daylighting standards provide an assessment method that can be used to evaluate the quality of window views. As part this evaluation process, designers must achieve five environmental information criteria (location, time, weather, nature, and people) obtain excellent view. To best our knowledge, these have not yet been verified their scientific validity remains conjectural. In a two-stage exper...

Accuracy and limitation of energy-window based scatter correction techniques have been evaluated for myocardial 201Tl SPECT by means of Monte Carlo simulation. In particular, projection view-dependency of energy distribution of the scattered photons was evaluated. Two geometrical configurations were simulated: namely a homogeneous cylindrical radioactivity located asymmetrically in a homogeneou...

In this study, we investigated a fenestration system that divides the roller blinds into multiple layers, closes partially to ensure privacy, and opens other areas achieve both view, daylighting solar heat gain. experiment in controlled space, subjects evaluated “visibility from inside”, “estimated visibility outside” “openness”, addition that, also “view”, “brightness” “total satisfaction” act...