The paper presents some methods of transforming ETRS89 co-ordinates to official Slovenian datum (D48) co-ordinates. Together with traditional transformation methods of scaling, translation and rotation least squares collocation is also used. The results of different transformation procedures between the astrogeodetic network and global co-ordinate system (ETRS89) show a lot of the drawbacks of existing national co-ordinate frame.
Authors:Milan Zlatanović, Milica Cvetković, and Nikola Velimirović
In this paper we consider general conoid surfaces. We consider mathematical and constructional aspects of these surfaces. In the constructional meaning conoids are thin shells which are used for spatial roof structures either in complete form or in parts. In mathematical sense it is a geometrical surface on which it is possible to determine rotational and translational fields and check the rigidity.
In this paper, we introduce a new concept of q-bounded radius rotation and define the class R*m(q), m ≥ 2, q ∈ (0, 1). The class R*2(q) coincides with S*q which consists of q-starlike functions defined in the open unit disc. Distortion theorems, coefficient result and radius problem are studied. Relevant connections to various known results are pointed out.
Authors:M. Kubo, Y. Sakai, T. Tominaga, K. Nishiyama, and K. Nagamine
Diamagnetic muon yields /PD/ in various metal acetylacetonates were measured at room temperature by the muon spin rotation technique. We have found a clear difference in PD between complexes of typical elements and those of transition elements. We suggest that partially filled inner orbitals play some important role in determining the diamagnetic yield in these complexes.
The angular variation of an irradiating flux around the cylindrical axis of a 3 Ci /11.1x1010 Bq/241Am–9Be neutron source has been investigated. Measurements using the27Al/n,p/27Mg reaction indicated a flux variation of up to 12% from the mean following a 2 rotation about the cylindrical axis.
The development of our understanding of the quantum states of nuclei is viewed from a historical perspective. The characteristics of nuclear energy levels are presented, and interpretations of these excitations in terms of simple vibrational and rotational modes are presented. The application of energy level schemes in a variety of fields is briefly summarized.
PLATT, J. E., COHEN, S. (1981) Mental rotation task performance as a function of age and training. The Journal of Psychology, 108 , 173-178.
Mental rotation task performance as a function of age and training
Being interested in (rotation-)invariant pseudodifferential equations of satellite problems corresponding to spherical orbits, we are reasonably led to generating kernels that depend only on the spherical distance, i.\,e., in the language of modern constructive approximation form spherical radial basis functions. In this paper approximate identities generated by such (rotation-invariant) kernels which are additionally locally supported are investigated in detail from theoretical as well as numerical point of view. So-called spherical difference wavelets are introduced. The wavelet transforms are evaluated by the use of a numerical integration rule, that is based on Weyl's law of equidistribution. This approximate formula is constructed such that it can cope with millions of (satellite) data. The approximation error is estimated on the orbital sphere. Finally, we apply the developed theory to the problems of satellite-to-satellite tracking (SST) and satellite gravity gradiometry (SGG).
In this paper, a fully analytical approach is proposed for framed structures with semi-rigid beam-to-column connections. Traditionally, the analysis of frame structures is based on the assumption that all connections are either frictionless pinned or fully rigid. Recent limit state specifications permit the concept of semi-rigid connection of the individual frame members in the structural design. In a frame with semi-rigid joints the loading creates both a bending moment and a relative rotation between the connected members. The moment and relative rotation are related acting through a constitutive law, which depends on the joint properties. In this study, a simplified beam-to-column connection is applied which was specified in EC3 Annex J. Results are presented for non-sway and sway frames under different load conditions.