This paper proposes the underwater terrain map building method based on the occupancy grids by using 3D point cloud from the polar sonar sensor system. Because it is expensive to use current 3D underwater sonar sensors, the low-cost 3D sensor systems are needed for the generalized purposes. So the polar-styled sonar sensor system was designed and implemented. It was constructed on the rotating ...

Let P be a polar space induced by a quasipolarity on a projective space G. In this article, we give sufficient conditions for an embedding (i.e. an incidence-preserving map which is injective on points and lines) of P into a projective space H to be extendable to an incidencepreserving map from G to H. As a consequence, we obtain conditions for such an embedding to be induced by a semilinear ma...

We present a geomorphologic map of Titan’s polar terrains. The map was generated from a combination of Cassini Synthetic Aperture Radar (SAR) and Imaging Science Subsystem imaging products, as well as altimetry, SARTopo and radargrammetry topographic datasets. In combining imagery with topographic data, our geomorphologic map reveals a stratigraphic sequence from which we infer process interact...

Mouse eggs arrested in metaphase II display high levels of cdc2/cyclin B1 and MAP protein kinase activities. Following fertilization there is a time-dependent decrease in the activity of each of these protein kinases. The decline in cdc2/cyclin B1 protein kinase correlates with the resumption of meiosis and the emission of the second polar body and precedes the decline in MAP kinase activity, w...

In this paper we present a new approach for quantitative analysis of myocardial perfusion SPECT studies and assessment of myocardium defect regions. Myocardial perfusion SPECT is widely used in the evaluation of post-infarction patients, in order to foretell the patients’ future conditions. Our approach is based on the use of polar maps, a two-dimensional plot of the reconstructed volume from t...

Engineering defects and strains in oxides provides a promising route for the quest of thin film materials with coexisting ferroic orders, multiferroics, with efficient magnetoelectric coupling at room temperature. Precise control of the strain gradient would enable custom tailoring of the multiferroic properties but presently remains challenging. Here we explore the existence of a polar-graded ...

Complex ecosystems characterize the Arctic Region, which experiences rapid environmental changes due to climate change. These are happening spatially as much temporally. Spatiotemporal interactive three-dimensional visualization of phenomena is eye-catching, while creating foundations for understanding complexity. The a circumpolar region; cylinders seem suitable visual media related data. In t...

4'-Acetyl-4-methoxy-biphenyl (AMB) was synthesized via catalytic Suzuki cross-coupling reaction and the crystal structure was determined. The crystals of AMB feature an orthorhombic unit cell with a = 7.900(6) A, b = 5.429(4) A, and c = 26.80(2) A and the crystals are noncentrosymmetric, space group Pna2(1). The crystal structure of AMB features parallel-alignment of essentially planar molecule...