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This study investigated length–weight and length–length relationships of three Clupeonella species: C. caspia, C. engrauliformis and C. grimmi captured in the southern Caspian Sea, Iran. Using a lantern net, 206 specimens were collected from July to August 2016. Presented for two of the species are the length–weight and the length–length relationships as well as the first reference on length–weight...
Laboratory-based measurements of acoustic wave propagation through porous media are important for many aspects of reservoir characterization. These measurements may be used to estimate sonic velocities, elastic anisotropy and dynamic rock mechanical properties, which in turn can be used in the calibration of sonic logs and to inform 3D/4D seismic and microseismic interpretations. In the current work,...
Contaminated soil and groundwater resulting from pyrite oxidation occur in coastal areas throughout the world, but do not pose an issue unless allowed to oxidise as a result of drainage or excavation. The exposure and oxidisation of these soils increase the concentration of iron and aluminium ions and cause adverse impact on flora and fauna and also water quality. Depending on the climate conditions...
Depth estimation of an object in a scene from images intensity is an essential problem in machine vision applications. Here, In order to obtain the distance between object and camera, a novel method presented for depth estimation from a single defocus blurred image. Unlike other methods for depth estimation which are based on the characteristics of the three-dimensional information, here, only constant...
Technology foresight determines technology threats and opportunities in environment. According to the importance of foresight in different level and complexity of this study, in this paper, important components and elements of foresight were extracted using content analysis method. Then Shannon's entropy is used to determine the importance degree of each element.
Real-time conversational video telecommunications services, such as video-conferencing, are becoming ever more important as a substitute for face-to-face meetings. One of the perceived weaknesses of existing services is the picture quality achieved, especially around the face of a speaker. A possible solution would be to identify the location of face, which is then transmitted at a higher quality...
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