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Diffraction of sound on an elastic cylindrical shell with a covering
submitted by MigueKyan 42 minutes ago
Diffraction of a hydroacoustic field on an elastic cylindrical shell with a covering was considered. Conditions allowing minimization of the scattered field at combined selection of impedances were...
 


Plastic forming of a wheel gear forge at a crank-type hot forging press
submitted by robotlee 42 minutes ago
A numerical model of the nonstationary process of plastic forming in the case of hot open volume stamping of a wheel gear forge at a crank-type hot forging press is presented. The rigid-plastic mod...
 
Circuit-engineering solutions and experimental studies of the vibration isolator with conversion of motion of the inertia elements
submitted by mene 42 minutes ago
The test item, the vibration isolator with transformation of motion of the inertia elements, is reviewed. The results of the experimental study of the stiffness characteristics of this vibration is...
 
Requirements for safe operation of transport aircraft structures
submitted by BarrettMan 42 minutes ago
The paper presents recommended criteria of operational survivability of structures at the aircraft design stage. The criteria are based on a generalization of results of computational and experimen...
 


A computational and experimental method for plotting multicycle fatigue curves for structural elements with concentrated stress
submitted by BarrettT 42 minutes ago
A theoretical method is considered for the theoretical plotting of the fatigue curves for specimens with stress concentration using the results of tests for smooth samples. The method is based on t...
 
Vibroimpact motion, slippage and return of the rotor on the stator
submitted by sotesh 42 minutes ago
Transitional processes are investigated in the rotor-stator system when the rotor becomes abruptly unbalanced in their contact, and the rotor rotates slower or faster than its critical speed while ...
 
Modeling and optimization of characteristics of the conventional suspension of passenger car wheels
submitted by marksni321 42 minutes ago
In this work we consider the rear conventional suspension of passenger car wheels. Two patterns of spatial suspension mechanisms are proposed. In addition, it is shown that the second pattern is mo...
 
Analysis of similarity of physical processes during simulation of cooling of machine crystallizers
submitted by ElliAydin 42 minutes ago
Similarity criteria describing physical the processes of boiling and condensation of a heat carrier were determined with a model and natural experiments based on the analysis of dimensions of param...
 
Computation of strength reliability for a wall of a cylindrical oil tank
submitted by Chamilani 42 minutes ago
Within frameworks of the random value theory, a statistical model is obtained for the reliability of a wall of an oil tank in the area of the joint with a tank bottom when the edge bending moment, ...
 
Reliability and cold resistance of thin-walled structures at low ambient temperatures
submitted by JorLaws 42 minutes ago
The authors propose to determine the reliability of metal structures (major pipelines, reservoirs, etc.) at low ambient temperatures in terms of the cold resistance criterion by using the second cr...
 
Ensuring the strength and accuracy of large-size waveguide distribution systems of communication satellites
submitted by babmellir2059 42 minutes ago
The paper proposes analytical and numerical justification of the design and manufacturing efforts in soldering individual elements together to construct large-scale waveguide distribution systems, ...
 
Seismic stability tests for models of fuel assemblies
submitted by beacamp 42 minutes ago
A procedure and results of seismic stability tests of full-scale models for fuel assemblies of the water-water energetic reactor VVER-1000 are presented. In the course of tests, kinematic loading o...
 
Intense flexural and torsional waves in an elastic bar
submitted by odreonoc 42 minutes ago
The paper considers the problems of propagation of an intense flexural wave in a twisted bar and an intense torsional wave in a bar with an initial curvature in the context of a geometrically nonli...
 
Long-term dynamics and structure of shrews association (Soricidiae) in the mountain taiga of the Eastern Sayan
submitted by gonish 44 minutes ago
The dynamics of shrews association in the mountain taiga of the Eastern Sayan was considered during the years 1981 to 2010. The work was carried out in the territory of “Stolby” reserve. The st...
 
Wild berry plants and carpophagous birds in the taiga zone of the southern Russian Far East
submitted by vanpoa 44 minutes ago
Information about the role of birds in dissemination of wild berry plants in the south of the Russian Far East taiga zone is presented based on the authors’ long-term ecological investigations an...
 
Marking activity of common beaver (Castor fiber L.) in the settlements of channel type. Dynamic aspect
submitted by TravRap 44 minutes ago
Features of the marking activity of beavers in the channel-type settlements are considered. On the basis of statistical data it was determined that the signal hillocks may be recommended for invest...
 
Morphological features of the Amur sleeper (Perccottus glenii, Perciformes, Eleotridae) introduced into water bodies of European Russia
submitted by moty 44 minutes ago
Data on eight morphological features of 29 Amur sleeper populations in water bodies of the acquired range of European Russia (50.0°–62.2°N) are presented and compared with 4 populations of the ...
 
On the studies of marking behavior of brown bear in terms of tree diameter selectivity
submitted by PablAlfo 44 minutes ago
Original data on the diameter of bear trees and trees in the stand were collected during the years 2002–2009 at the Upper Pechora and in the Western Sayan. The data were processed using the two-s...
 
The diet of Mustela erminea L. in the Magadan oblast
submitted by ondriomclork 44 minutes ago
The study describes the diet of Mustela erminea L. in the Magadan oblast. The major component is Clethrionomys voles in the oblast, C. rufocanus in the Sea of Okhotsk area and ...
 
Small mammals at the southeast of Tver oblast. Brief note 2. Diversity, population density and biomass
submitted by aglk 44 minutes ago
The analysis of biotic diversity using pictographs has shown various changes after long-term deforestation and under short-term disturbance of forest habitats. The biomass of small mammals was simi...
 
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