Atlas of the Antarctic deep structure with the gravimetric tomography

The Atlas contains results of a deep structure modeling of the Antarctic and the South Ocean regions. Initial data are spherical harmonics of the EGM96 global geoid model. Dense heterogeneities are calculated using the gravimetric tomography technology. 3D images of vertical and lateral sections on different depths are presented. Proceeding compiling, computer design: “Geographika”.Атлас содержит результаты моделирования глубинного строения Антарктики и регионов Южного океана. Исходными данными являются сферические гармоники глобальной модели геоида EGM96. Плотностные неоднородности рассчитаны, используя метод гравиметрической томографии. Представлены 3Д изображения вертикальных и латеральных разрезов на различных глубинах.Компьютерная верстка, макетирование: предприятие “Географика”

KamLAND-experiment and soliton-like nuclear georeactor

We give an alternative description of the new data produced in the KamLAND experiment, assuming the existence of a natural nuclear reactor on the boundary of the liquid and solid phases of the Earth's core. Analyzing the uncertainty of antineutrino spectrum of georeactor origin, we show that the theoretical (which takes into account the soliton-like nuclear georeactor with power about 20 TW) reactor antineutrino spectrum describes with good accuracy the new experimental KamLAND-data. At the same time the parameters of mixing (Δm²₂₁=2.5х10⁻⁵ eV², tan²Θ₁₂=0.437) calculated within the framework of georeactor hypothesis are substantially closer to the data of solar flux SNO-experiment then the parameters of mixing obtained in KamLAND-experiment

Idempotent mathematics and interval analysis

Idempotent mathematics, which is based on the so-called idempotent superposition principle, has achieved a significant role lately in applications to problems of optimization (optimization of graphs, discrete optimization with a large parameter, optimal organization of parallel computation, etc.). However, in practice one often deals with uncertain data so that the use of interval arithmetic (which transfers the operations with numbers to operations with sets) facilitates the work with unreliable data and the control of rounding error through the process of computation. For these reasons the authors of this extensive paper develop an analogue of interval analysis in the context of optimization theory and idempotent mathematics, that is, a generalization of idempotent mathematics for the case of operations with sets. Different kinds of interval extensions of idempotent semi-rings (the weak interval extension, interval extension with a zero element) and their properties are discussed. par It is shown that idempotent interval arithmetic has much better behavior compared to classical situation, such as the distributivity property, associativity of matrix multiplication and a polynomial number of operations in solving interval systems of linear equations. This makes this structure suitable for applications in linear algebra and even further. Namely, idempotent linear algebra lies in the essence of idempotent analysis since by the principle of superposition many nonlinear algorithms can be suitably approximated by linear algorithms. Such applications are also considered in the paper

Phase transformations at the interface between experimental Ni-Co-Cr-Al alloys and creep-resisting nickel alloys

15.00; Translated from Russian (Probl. Spets. Elektrometall. 1986 v. 2(4) p. 45-49)SIGLEAvailable from British Library Document Supply Centre- DSC:9023.19(VR--3695)T / BLDSC - British Library Document Supply CentreGBUnited Kingdo

Formation of point defects in chemico-mechanical polishing of silicon

10.00; Translated from Russian (Fiz. Khim. Obrab. Mater. 1985 v. 19(3) p. 116-118)SIGLEAvailable from British Library Document Supply Centre- DSC:9023.19(VR--3138)T / BLDSC - British Library Document Supply CentreGBUnited Kingdo