Bounded motion in a two-body system consisting of a solid body and a material point

1987 ◽  
Vol 41 (1-4) ◽  
pp. 53-63
Author(s):  
A. Chapsiadis ◽  
M. Michalodimitrakis
Keyword(s):  
Solid Body ◽  
Material Point ◽  
Body System ◽  
Bounded Motion

Investigation of Hydrodynamics During Continuous Vibroextraction in a Liquid–Solid Body System

2018 ◽  
pp. 524-535 ◽  
Author(s):  
Vladimir Zavialov ◽  
Taras Misyura ◽  
Nataliya Popova ◽  
Yuliya Zaporozhets ◽  
Vadim Dekanskiy
Keyword(s):  
Solid Body ◽  
Body System

scholarly journals Evaluation of the limit properties of a solid body system

2019 ◽  
Vol 632 ◽  
pp. 012023 ◽  
Author(s):  
E V Eltoshkina ◽  
P I Ilyin ◽  
N I Ovchinnikova ◽  
O A Svirbutovich ◽  
D M Rozhkov
Keyword(s):  
Solid Body ◽  
Body System

O-acylation of ketoximes of the furan and thiophene series in the liquid-solid body system under interphase catalysts conditions

1994 ◽  
Vol 30 (7) ◽  
pp. 762-766
Author(s):  
�. Abele ◽  
Yu. Popelis ◽  
M. Gavars ◽  
A. Gaukman ◽  
M. Shimanska ◽  
...  
Keyword(s):  
Solid Body ◽  
Body System ◽  
Thiophene Series

Study of the characteristics of heat and mass transfer in a gas-solid body system at low temperatures

1991 ◽  
Vol 61 (6) ◽  
pp. 1524-1529
Author(s):  
N. V. Atapina ◽  
D. N. Garipogly ◽  
A. S. Drobyshev ◽  
V. A. Kuz'min ◽  
S. L. Maksimov
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Solid Body ◽  
Low Temperatures ◽  
Body System

scholarly journals The implementation of a given motion of a rigid body relative to its center of mass by moving the material point

2019 ◽  
Vol 489 (2) ◽  
pp. 147-151 ◽  
Author(s):  
A. M. Shmatkov
Keyword(s):  
Rigid Body ◽  
Coordinate System ◽  
Mechanical System ◽  
Solid Body ◽  
Center Of Mass ◽  
Material Point ◽  
Body Motion ◽  
External Forces

In the absence of external forces for a mechanical system consisting of an interacting solid body and a material point, a law of movement of a point is constructed that realizes a given body motion in the Koenig coordinate system. Conditions found that this movement has to satisfy. The result can be used both to create capsule robots and to control spacecraft. An example of applying the obtained formula is given.

scholarly journals Translational Rectilinear Motion of a Solid Body Carrying a Movable Inner Mass

2019 ◽  
Vol 65 (4) ◽  
pp. 557-592
Author(s):  
B. S. Bardin ◽  
A. S. Panev
Keyword(s):  
Solid Body ◽  
Coulomb Friction ◽  
Center Of Mass ◽  
Vertical Plane ◽  
Viscous Friction ◽  
Material Point ◽  
Rectilinear Motion ◽  
Qualitative Investigation ◽  
Periodic Mode ◽  
Absolute Value

We consider the motion of the mechanical system consisting of the case (a solid body) and the inner mass (a material point). The inner mass circulates inside the case on a circle centered at the center of mass of the case. We suppose that absolute value of the velocity of circular motion of the inner mass is constant. The case moves translationally and rectilinearly on a flat horizontal surface with forces of viscous friction and dry Coulomb friction on it. The inner mass moves in vertical plane. We perform the full qualitative investigation of the dynamics of this system. We prove that there always exist a unique motion of the case with periodic velocity. We study all possible types of such a periodic motion. We establish that for any initial velocity, the case either reaches the periodic mode of motion in a finite time or asymptotically approaches to it depending on the parameters of the problem.

Defects in Crystals

1968 ◽  
Vol 26 ◽  
pp. 244-245
Author(s):  
Kenneth R. Lawless
Keyword(s):  
Electron Microscope ◽  
Point Defects ◽  
Surface Defects ◽  
Chemical Properties ◽  
Material Point ◽  
Crystal Defects ◽  
Defects In Crystals ◽  
Irradiation Effects ◽  
Normal Lattice ◽  
Line Defects

One of the most important applications of the electron microscope in recent years has been to the observation of defects in crystals. Replica techniques have been widely utilized for many years for the observation of surface defects, but more recently the most striking use of the electron microscope has been for the direct observation of internal defects in crystals, utilizing the transmission of electrons through thin samples.Defects in crystals may be classified basically as point defects, line defects, and planar defects, all of which play an important role in determining the physical or chemical properties of a material. Point defects are of two types, either vacancies where individual atoms are missing from lattice sites, or interstitials where an atom is situated in between normal lattice sites. The so-called point defects most commonly observed are actually aggregates of either vacancies or interstitials. Details of crystal defects of this type are considered in the special session on “Irradiation Effects in Materials” and will not be considered in detail in this session.

Three-Dimensional Reconstruction of Native Androctonus Australis Hemocyanin

1990 ◽  
Vol 48 (1) ◽  
pp. 452-453
Author(s):  
Nicolas Boisset ◽  
Jean-Christophe Taveau ◽  
Jean Lamy ◽  
Terence Wagenknecht ◽  
Michael Radermacher ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Solid Body ◽  
Body Surface ◽  
Three Dimensional ◽  
Staining Technique ◽  
Three Dimensional Reconstruction ◽  
Dimensional Reconstruction ◽  
View Reconstruction ◽  
Surface Representations ◽  
Top View

Hemocyanin, the respiratory pigment of the scorpion Androctonus australis is composed of 24 kidney shaped subunits. A model of architecture supported by many indirect arguments has been deduced from electron microscopy (EM) and immuno-EM. To ascertain, the disposition of the subunits within the oligomer, the 24mer was submitted to three-dimensional reconstruction by the method of single-exposure random-conical tilt series.A sample of native hemocyanin, prepared with the double layer negative staining technique, was observed by transmisson electron microscopy under low-dose conditions. Six 3D-reconstructions were carried out indenpendently from top, side and 45°views. The results are composed of solid-body surface representations, and slices extracted from the reconstruction volume.The main two characters of the molecule previously reported by Van Heel and Frank, were constantly found in the solid-body surface representations. These features are the presence of two different faces called flip and flop and a rocking of the molecule around an axis passing through diagonnally opposed hexamers. Furthermore, in the solid-body surface of the top view reconstruction, the positions and orientations of the bridges connecting the half molecules were found in excellent agreement with those predicted by the model.

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