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The article discusses the development of noninvasive preoperative methods for the localization of eloquent areas in the human brain. The accuracy with which such areas are localized directly determines the outcome of surgery. An analytical formula is derived for the solution of the forward problem that computes the magnetic field on the surface of the head from the known location and orientation of a current dipole in the low-frequency approximation in the spherical model. The inverse problem is also solved, reconstructing the location and orientation of the source given the magnetic field on the surface of the head. Qualitative analysis of the ellipsoidal model is carried out.

Functional dependencies are established for the characteristics of seismic transients recorded at various points of a studied site, which are used to propose a new approach to seismic microzonation (SMZ) that enables the creation of new SMZ maps of strong seismic motion, with due regard for dynamic parameters of recorded transients during weak earthquakes.

Problems, methods, and results of instrumental seismic risk microzoning (SRM) of areas of hydrotechnical construction are considered. New approaches are suggested for processing and analyzing the data, which are also applicable for practical SRM of inhabited localities and civil and industrial construction sites.

Using calibrated identified three-component complexes of seismic equipment the response of a building to repeated mechanical action was recorded at 56 points. It was shown that the maximal values of the accelerations at the observation points and the spectra of the three components of the accelerations have a regular connection with the structural properties of the building. It is concluded that the use of identified equipment in machinery can locate the main zones of inhomogeneity of dynamic loads—the zones of stress concentrations, whose position is independent of the intensity of the mechanical action.

Shaping operations including bending and stretching deformation are often used in producing members of thin-wall titanium structures of aircraft. At the same time published sources do not give much data on the effect of the degree of deformation on the cyclic endurance of sheet titanium alloys. In addition the problem of how much alloys of medium and high strength can be deformed without diminishing their operating capacity still remains open. The present paper is devoted to the possibility of deforming sheet titanium alloys of different strength groups by bending and stretching without reducing their cyclic life.

Raising the temperature of the hot-blast is one of the more effective ways of improving blast-furnace technical and economic characteristics. A system for automatic control of hotblast temperature with paired paralled stove operation was adopted for this purpose at our Combine in 1974 on blast-furnace No. 3. It utilizes redistribution of the amount of cold blast passing through each hot-blast stove by means of regulating throttles mounted in the stove cold-blast pipes.