2021. N 4(49)

CONTENTS

2021. N 4/49

Dynamics, Durability of Machines, Instruments and Equipment

Koteneva N., Borisova A., Perfileva N. Technical solution for evaluation of contact stiffness and strength of the joint surfaces of injector

Ship Design and Construction

Anosov A., Bulkov E., Voskovshchuk N. Speed characteristics canoe-single

Marine Engines and Auxiliary Machinery

Kutsenko N., Gribinichenko M., Nityagovsky A. Comparative analysis of the results of numerical and physical experiments on study of gas-lubricated radial bearing properties

Physical Fields of Ship, Ocean and Atmosphere

Statsenko L., Kuzin D. Spectral features of hydroacoustic noises in determination of class of underwater objects

Unru P. Method for directional pattern adaptation of hydroacoustic antenna array to the current conditions of a non-stationary underwater communication channel

Buildings and Structures

Makishin V., Panarin I., Fediuk R. Provision of the level of the population protection from external damaging factors

Building Materials and Products

Britvina E., Slavcheva G. Indicators of buildability of 3D-printable mixture: modeling and experimental research

Belkova N., Stepanova M., Makushina Yu. The ways to improve competitiveness of dry building gypsum mixtures

Engineering Hydrology

Akhmedova N., Naumov V. Influence of the channel roughness factor change on the maximal design levels of a small watercourse in a given river cross (Nelma river example)

Abdulameer Layth Saeed Abdulameer, Dzhumagulova N. Feasibility study of the choice of pipe parameters and wastewater transportation system for irrigation on the example of the administrative district of Kerbala (Iraq)

Hydraulic Engineering

Tsuprik V. Substantion of the energy approach to parameter determination of the cyclic ice force against offshore structures

Theory and History of Architecture

Matveieva M., Kopeva A., Maslovskaia O. Features of the formation of the architectural and spatial environment of intergenerational centers

Marus Y., Kazantsev P. The symbolic content of the city in modern architectural culture: analysis of theory