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Wyświetlanie 1-10 z 89
Tytuł:
Investigation on inertia characteristics of corncobs
Badania inercyjnych właściwości kolb kukurydzy
Autorzy:
Kuzenko, D.
Kuzenko, L.
Vantukh, Z.
Powiązania:
https://bibliotekanauki.pl/articles/8735543.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
inertia characteristics
corn cob
inertia moment
separate mechanism
pulling speed
corn
harvesting
Źródło:
Acta Scientiarum Polonorum. Technica Agraria; 2010, 09, 3-4; 19-27
1644-0684
Pojawia się w:
Acta Scientiarum Polonorum. Technica Agraria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nature of Inertia forces
Autorzy:
Baurov, Yu. A.
Powiązania:
https://bibliotekanauki.pl/articles/412012.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
byuon
new force
inertia forces
Opis:
The physical nature of inertia forces is shown on the base of theory of byuons, the theory of “life’ of special unobservable discrete objects – byuons from which the surrounding physical space (dark matter) and the world of elementary particles are formed. The theory of byuons predicts a new non-gauge force of nature which explains of physical nature of inertia forces.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 10; 14-24
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reduction of Deformations during Welding Metal Wire Mesh with Frames
Autorzy:
Krawczyk, R.
Słania, J.
Powiązania:
https://bibliotekanauki.pl/articles/356539.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
welding
stresses
deformations
moment of inertia
Opis:
The article presents an issue referring to a reduction of deformation during welding metal wire mesh into the frames. A problem of a possible reduction of deformations was described taking into account characteristics of a construction of a welded element. Technological tests and their results are provided. Technological recommendations relating to the reduction of deformations of the welded element are given.
Źródło:
Archives of Metallurgy and Materials; 2016, 61, 2A; 529-534
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Deflection of Steel Reinforced Concrete Beam Prestressed with CFRP Bar
Autorzy:
Selvachandran, P.
Anandakumar, S.
Muthuramu, K. L.
Powiązania:
https://bibliotekanauki.pl/articles/353032.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
cracked moment of inertia
deformability
effective moment of inertia
neutral axis
Partial Prestressig Ratio
yielding point
Opis:
Carbon Fiber Reinforced polymer (CFRP) bars are weak in yielding property which results in sudden failure of structure at failure load. Inclusion of non-pretensioned steel reinforcement in the tension side of CFRP based prestressed concrete beam will balance the yielding requirements of member and it will show the definite crack failure pattern before failure. Experimental investigation has been carried out to study the deflection behavior of partially prestressed beam. Experimental works includes four beam specimens stressed by varying degree of prestressing. The Partial Prestressing Ratio (PPR) of specimen is considered for experimental works in the range of 0.6 to 0.8. A new deflection model is recommended in the present study considering the strain contribution of CFRP bar and steel reinforcement for the fully bonded member. New deflection model converges to experimental results with the error of less than 5% .
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 3; 1915-1922
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Scientific bases of creation of dust catchers
Autorzy:
Batluk, V.
Powiązania:
https://bibliotekanauki.pl/articles/410869.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
dust catchers
centrifugal - inertia vehicles
mathematical model
Opis:
The mathematical model of process of portale and besieging of hard particles from the dust stream of vertical vehicles is examined in the article. The calculation chart of dust catcher of vertical vehicles is built with the jalousie separator of a new principle type.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2012, 1, 4; 3-7
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamic analysis of torsional discrete-continuous systems with position-dependent variable inertia
Autorzy:
Pielorz, A.
Powiązania:
https://bibliotekanauki.pl/articles/279507.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
variable inertia
discrete-continuous systems
wave approach
Opis:
In the paper, dynamic investigations of multi-mass discrete-continuous systems torsionally deformed are performed taking into account the position-dependent mass moment of inertia of one of rigid bodies. It is assumed that the rigid body representing a motor moves with a variable velocity. An originally nonlinear problem is linearized, and the wave approach leading to solving equations with a retarded argument having variable coefficients is used for the solution. Exemplary numerical calculations are done for a three-mass system.
Źródło:
Journal of Theoretical and Applied Mechanics; 2014, 52, 1; 107-115
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal dynamics of a building
Autorzy:
Matysko, R.
Dyczkowska, M.
Powiązania:
https://bibliotekanauki.pl/articles/175263.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
transient model
thermal loss
thermal inertia
building
Opis:
The work presents the thermal dynamics of the building. The mathematical model covers the issues of heat exchange and temperature control in the room due to changing environmental conditions. The presented work describes the operation of the control system due to thermal losses and thermal inertia of the building. Mathematical model introduces a new method of thermal loss analysis in the conditions of variable thermal dynamics of the building.
Źródło:
Transactions of the Institute of Fluid-Flow Machinery; 2018, 141; 31-40
0079-3205
Pojawia się w:
Transactions of the Institute of Fluid-Flow Machinery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The inertia of unicyclic graphs and bicyclic graphs
Autorzy:
Liu, Ying
Powiązania:
https://bibliotekanauki.pl/articles/728942.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
matching number
inertia
nullity
unicyclic graph
bicyclic graph
Opis:
Let G be a graph with n vertices and ν(G) be the matching number of G. The inertia of a graph G, In(G) = (n₊,n₋,n₀) is an integer triple specifying the numbers of positive, negative and zero eigenvalues of the adjacency matrix A(G), respectively. Let η(G) = n₀ denote the nullity of G (the multiplicity of the eigenvalue zero of G). It is well known that if G is a tree, then η(G) = n - 2ν(G). Guo et al. [Ji-Ming Guo, Weigen Yan and Yeong-Nan Yeh. On the nullity and the matching number of unicyclic graphs, Linear Algebra and its Applications, 431 (2009), 1293-1301.] proved if G is a unicyclic graph, then η(G) equals n - 2ν(G) - 1, n-2ν(G) or n - 2ν(G) + 2. Barrett et al. determined the inertia sets for trees and graphs with cut vertices. In this paper, we give the nullity of bicyclic graphs ₙ⁺⁺. Furthermore, we determine the inertia set in unicyclic graphs and ₙ⁺⁺, respectively.
Źródło:
Discussiones Mathematicae - General Algebra and Applications; 2013, 33, 1; 109-115
1509-9415
Pojawia się w:
Discussiones Mathematicae - General Algebra and Applications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Implications of inertia for hydroelastic instability of Herschel-Bulkley fluids in plane poiseuille flow
Autorzy:
Jafargholinejad, S.
Najafi, M.
Powiązania:
https://bibliotekanauki.pl/articles/280168.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
inertia
instability
Herschel-Bulkley fluid
Mooney-Rivlin solid
Opis:
This study investigates the effects of inertia on the hydroelastic instability of a pressure- -driven Herschel-Bulkley fluid passing through a two-dimensional channel lined with a polymeric coating. The no-viscous hyperelastic polymeric coating is assumed to follow the two-constant Mooney-Rivlin model. In this work, analytical basic solutions are determined for both the polymeric gel and the fluid at very low Reynolds numbers. Next, the basic solutions are subjected to infinitesimally-small, normal-mode perturbations. After eliminating the nonlinear terms, two 4-th order differential equations are obtained. The equations with appropriate boundary conditions are then numerically solved using the shooting method. The results of the solution show that the inertia terms in the perturbed equations destabilize the pressure-driven Herschel-Bulkley fluid flow. The investigation reveals that the elastic parameter has a stabilizing effect on the flow. Also, based on the obtained results, the yield stress, depending on the power-law index, has a stabilizing or destabilizing effect on the flow. Since in this work the inertia terms are included in the pertinent governing equations, therefore, the results of this study are much more realistic and reliable than previous works in which inertia terms were absent. In addition, unlike the previous works, the present study considers both the shear-thinning and shear-thickening types of fluids. Hence, the results of this work embrace all the fluids which obey the Herschel-Bulkley model.
Źródło:
Journal of Theoretical and Applied Mechanics; 2018, 56, 4; 1205-1216
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modeling of dynamic growth of a micro-scaled void based on strain gradient elasto-plasticity
Autorzy:
Ma, Xinbing
Liu, Jinxing
Wang, Jiadong
Pan, Hao
Powiązania:
https://bibliotekanauki.pl/articles/1839598.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
dynamic void growth
size effect
inertia
thermal softening
Opis:
Void initiation and growth serve as an important mechanism in ductile failures in metals. Particularly, on the micron-level, the extra hardening effect associated with strain gradient is accounted for by adopting strain gradient elasto-plasticity instead of the conventional plasticity. Effects of inertial, strain gradient hardening and thermal softening are formulated analytically for the case where a spherical void expands under external hydrostatic stress. As demonstrated by our results, the inertia effect firstly tends to hinder but then promotes the void growth. The threshold stress required for rapid void growth is lifted due to extra hardening of strain gradient so that the growth of a smaller void is delayed more remarkably. A considerable thermal softening phenomenon is observed here, which is caused by plastic work during the deformation process. The final void growth rate is mainly related to the maximum loading, which is consistent with the prediction based on the classical plastic theory.
Źródło:
Journal of Theoretical and Applied Mechanics; 2020, 58, 4; 927-941
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 89

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