Results 31 to 40 of about 252,411 (181)
STABILITY CALCULATION OF ROD ELEMENTS OF SOLID-WALL ARCHES BY THE FLEXURAL-TORSIONAL FORM
The work considers main, most significant scientific works on study of the stability of rods with the curved axis; the issue of the subject matter investigation is examined. A procedure for determining the spatial displacements of curvilinear rods during
Dmitrii Urazgildeev, Grigorii Beliy
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COMPARATIVE MORPHOLOGICAL STUDIES ON THE VASCULAR TUNIC OF THE EYEBALL OF TWO SPECIES OF FISHES: OREOCHROMIS NILOTICUS AND MUGIL CEPHALUS [PDF]
The vascular tunic of the eyeball of both Oreochromis niloticus and Mugil cephalus consists of a posterior choroid and an anterior iris. The choroid consists mainly of a vascular layer bordered externally by the choroidal argenta.
K.H. ALY, H.E. IMAM
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Determination of frequency characteristics of thin-walled rods with transverse cracks
Abstract Vibrations of a thin-walled cantilever rod of a box-shaped profile were studied. The natural vibrations frequencies of a rod with a crack of different depth and located in different places of the rod were determined. The method of conducting an experiment using a vibration analyzer is given. A variant of determining the location
A Gavrilov, G Grebenuk, N Morozov
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Three New Species of Clonostachys (Hypocreales, Ascomycota) from China
Three new species of Clonostachys are introduced based on specimens collected from China. Clonostachys chongqingensis sp. nov. is distinguished by pale yellow to pale orange-yellow perithecia with a very low papilla, clavate to subcylindrical asci ...
Zhao-Qing Zeng, Wen-Ying Zhuang
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RESEARCH ON DYNAMIC SIMILARITY MODEL TEST OF DAMAGE DETECTION FOR TRANSMISSION TOWER [PDF]
In order to explore the dynamic similarity model test method different from atmospheric boundary layer wind tunnel and shaking table model test, in accordance with dynamic similar theory, an elastic model of a transmission tower with 1/35 scale and 5.2m ...
Zhou Ling +4 more
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Purpose. An experimental verification of the existence of a range of values for the parameters of the capacitive energy storage of the magnetic-pulse installations with controlled vacuum discharger, in which, with a high probability, there is a «cut» of ...
L. A. Ljutenko, V. M. Mikhailov
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Local buckling of steel cold-formed profiles under transverse bending [PDF]
Danger local buckling (LPA) are virtually ignored in most engineering methods for calculating the cross-section profiles with complex shapes. The problem of LPA rod is reduced to the problem of overall sustainability.
Darya Alekseevna Trubina +4 more
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Justification of the kinematic assumptions for thin-walled rods with shallow profile
In this Note we present a justification of the kinematic assumptions for thin-walled rods with shallow profile. These assumptions are fundamental to writing the one-dimensional equilibrium equations for such structures. The obtained kinematics are different from the Vlassov case, which is only valid for strongly curved profiles. They are also different
Lionel Grillet +2 more
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Buckling analysis of thin-walled cold-formed beams — short reviewngs [PDF]
This article provides a review of recent publications relating to buckling analysis of cold-formed profile in bending. Nowadays thin-walled structures offer a promising direction of development of civil engineering in Russia and worldwide and can
Marsel Rinatovich Garifullin +1 more
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This paper considers a spatial frame bar finite element for modeling reinforced concrete beams and columns. Both concrete and reinforcement are described by the equations of the deformation theory of plasticity and the theory of plastic flow. Degradation
S. Fialko, Viktor Karpilowskyi
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