There are distribution with 4,2,1 for four nuclei of coordinate H0,difference K15 and H24.Coordinates(30,15)(31,15)(32,15)(34,15) connect four nuclei of coordinate H0,two nuclei of K15,two nuclei of H34 on the quadrilateral area.
In the quadrilateral with Z43～50 and K15～20 of the square chart of nuclides with parameters S=2Z-N,H=N-Z,three or four among four parameters()~S_KR~H_(X) are taken as new terms to express limiting nuclides of stable scope. The lines stretch into outer area of the quadrangle.
(2) On the basis of traditional active soil pressure method and expirical siol pressure method , the calculating model of the laternal earth pressure which is a tetragon with the largest value in the center side is addressed.
Based on the geometrical characteristics of blades,some practical techniques were proposed,including 2D-series-connection numbering of sub-block nodes,application of generalized quadrilaterals and interpolation method of node coordinates on complex surfaces.
Changes in An-O bond lengths in the tetragon-bipyramidal coordination polyhedron of the compounds K3AnO4(OH)2·2H2O in going from Np(VII) to Pu(VII) were considered.
The solubility of carbon in iron-nickel sulfide melts at 1673 K was studied in the entire range of compositions of the Fe-FeS-Ni3S2-Ni tetragon.
Lines of carbon isosolubility are plotted in the tetragon field outside the stratification area.
The diagram of phase equilibria in the edge sections of the concentration tetragon CaSiO3-4CaGeO3-BaGeO3-BaSiO3 is presented, and the solubility boundaries are schematically shown for the solid solutions existing in this system at 1200°C.
The brouwer fixed point theorem and tetragon with all vertexes in a surface
Each road seed is composed by a sequence of connected road objects in which each sequence of this type can be geometrically structured as a chain of contiguous quadrilaterals.
This strategy does not allow the reconstruction of road crossings, but it allows the extraction of road centerlines from the contiguous quadrilaterals representing connected road segments.
Some relations concerning triangles and bicentric quadrilaterals in connection with Poncelet's closure theorem when conics are c
Liu and Yan gave the degree condition for a balanced bipartite graph G = (V1, V2;E) to have k vertex-disjoint quadrilaterals containing any given k independent edges e1, .
A constantK0(m)(h) is introduced for every quasisymmetric mappingh of the unit circle and every integerm≥4 which contains the constantK0(h) (indicated by the change in module of the quadrilaterals with vertices on the circle) as a special case.