Temat: eccentric - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Connective Eccentric Index of Circumcoronene Homologous Series of Benzenoid Hk
Autorzy:: Farahani, M. R.
Powiązania:: https://bibliotekanauki.pl/articles/411668.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: molecular graph
benzenoid
connective eccentric index
eccentric connectivity index
Opis:: Let G be a molecular graph, a topological index is a numeric quantity related to G which is invariant under graph automorphisms. The eccentric connectivity index ξ(G) is defined as [wzór] where [wzór] denote the degree of vertex v in G and the largest distance between v and any other vertex u of G. The connective eccentric index of graph G is defined as [wzór] In the present paper we compute the connective eccentric index of Circumcoronene Homologous Series of Benzenoid Hk (k ≥ 1).
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2014, 13, 1; 71-76
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Mathematical modelling of a disc weakened by an eccentric circular hole
Modelowanie matematyczne dysku osłabionego mimośrodowo umiejscowionym otworem kołowym
Autorzy:: Bizić, M.
Petrović, D.
Pancić, D.
Dinović, Z.
Powiązania:: https://bibliotekanauki.pl/articles/281727.pdf
Data publikacji:: 2012
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: modelling
disc
eccentric hole
Opis:: The task of this paper is identification of stresses in a homogeneous isotropic disc weakened with an eccentric circular hole which is loaded by pressure in the internal contour of the hole. By application of a complex variable method, the mathematical model that allows complete analytical solution of stresses of the disc is formed. The methodology can be applied for the solution of any disc weakened with an eccentric circular hole. The comparative analysis has shown a high accuracy of analytically obtained results with FEM results obtained by calculations in ANSYS 12 software package. The application of the results of this paper is of great importance for quality design and optimization of thin-walled structures of disc type weakened by a circular hole.
Zadaniem podjętym w artykule jest identyfikacja stanu naprężeń w jednorodnym, izotropowym dysku osłabionymmimośrodowo umiejscowionymwycięciem kołowym, obciążonym wzdłuż brzegu wewnętrznym naciskiem. Stosując metodę zmiennej zespolonej, w pracy sformułowano matematyczny model układu, który pozwolił na uzyskanie w pełni analitycznego opisu rozkładu naprężeń w dysku. Zastosowana metodologia, zdaniem autorów, może być użyta dla dowolnego dysku z mimośrodowym otworem o kształcie koła. W pracy przeprowadzono ponadto analizę porównawczą z wynikami uzyskanymi numerycznie za pomocą metody elementów skończonych z wykorzystaniem pakietu ANSYS 12. Otrzymane rezultaty badań mogą mieć duże znaczenie praktyczne z punktu widzenia jakości projektowania i optymalizacji cienkościennych konstrukcji zawierających elementy strukturalne z kołowym wycięciem.
Źródło:: Journal of Theoretical and Applied Mechanics; 2012, 50, 4; 1097-1108
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Connective Eccentric Index of an infinite family of linear polycene parallelogram benzenoid
Autorzy:: Farahani, M. R.
Powiązania:: https://bibliotekanauki.pl/articles/411891.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: molecular graphs
linear polycene parallelogram
benzenoid
eccentric connectivity index
connective eccentric index
Opis:: Let G=(V, E) be a graph, where V(G) is a non-empty set of vertices and E(G) is a set of edges. We defined dv denote the degree of vertex v∈V(G). The Eccentric Connectivity index ξ(G) and the Connective Eccentric index Cξ(G) of graph G are defined as ξ(G)= [wzór] and Cξ(G)=[wzór] where ε(v) is defined as the length of a maximal path connecting a vertex v to another vertex of G. In this present paper, we compute these Eccentric indices for an infinite family of linear polycene parallelogram benzenod by a new method.
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2014, 18; 57-62
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Excentrická pozicionalita ako východisková kategória problému telesnosti človeka
Autorzy:: Dercová, Marta
Powiązania:: https://bibliotekanauki.pl/articles/2141292.pdf
Data publikacji:: 2011
Wydawca:: Instytut Studiów Międzynarodowych i Edukacji Humanum
Tematy:: Body
Philosophical anthropology
Eccentric positionality
Smile
Opis:: This report represents an examination of one of the most recent issues of philosophical anthropology and thus the problem of corporality. The main idea of a report is associated with a basic category of Helmuth Plessner ́s philosophical antrhropology, eccentric positionality, which we can consider to be an antropological category a priory when dealing with a problem of corporality. This category demstrates double distance of a man to his body.
Źródło:: Humanum. Międzynarodowe Studia Społeczno-Humanistyczne; 2011, 1(6); 77-84
1898-8431
Pojawia się w:: Humanum. Międzynarodowe Studia Społeczno-Humanistyczne
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Assessment of landslide hazard from tree-ring eccentricity and from compression wood : a comparison
Autorzy:: Łuszczyńska, Katarzyna
Malik, Ireneusz
Wistuba, Małgorzata
Krąpiec, Marek
Powiązania:: https://bibliotekanauki.pl/articles/2058669.pdf
Data publikacji:: 2019
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: eccentric growth
reaction wood
landslide activity
Western Carpathians
Opis:: We have compared maps of landslide activity and hazard, developed with the use of two different dendrochronological indicators: tree-ring eccentricity and reaction (compression) wood. The maps were prepared based on 125 Norway spruce (Picea abies L. Karst.) trees growing at 44 sampling points, distributed over an area of 3.75 km2. In general, the two maps show similar patterns of landslide activity. However, tree-ring eccentricity yielded a greater number of dated events (246) compared to compression wood (129). Besides the differences in the absolute values of dating results, the general landslide activity and hazard zonation based on both disturbances are similar. Both growth disturbances develop as a result of stem tilting. Eccentricity develops after slight tilting, while compression wood is developed when tilting is more significant. Because of the differences in the strength of disturbing factors, which cause the development of compression wood and growth eccentricity, the best approach would be to combine the results of dating obtained from the two methods. The dendrochronological analysis of tree growth disturbances (eccentric growth and compression wood) is a promising approach for determining landslide hazards in forested mountain areas and can be applied in spatial management.
Źródło:: Geological Quarterly; 2019, 63, 2; 296--301
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Influences of the diameter and position of the inner hole on the strength and failure of disc specimens of sandstone determined using the Brazilian split test
Autorzy:: Zhu, Tantan
Huang, Da
Powiązania:: https://bibliotekanauki.pl/articles/281036.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: Brazilian test
rock
eccentric hole
strength
failure pattern
Opis:: The Brazilian split test on a centrally holed disc (referred to as a ring-disc specimen) is an important indirect method for determining the tensile strength of rock. This paper studies the effect of the diameter d of the center hole and its position, defined by the eccentricity b and the inclination angle of the eccentric hole, on the peak load, failure pattern and horizontal stress of the disc specimen via laboratory experiments and numerical modeling using the finite element method (FEM). Static Brazilian split tests are conducted on an intact disc and three types of holed discs: C-specimens containing a central hole with different diameters, EH-specimens with a horizontally eccentric hole and ER-specimens with a rotationally eccentric hole.
Źródło:: Journal of Theoretical and Applied Mechanics; 2019, 57, 1; 127-140
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Simulation of the stress-strain state of eccentrically compressed and tensioned reinforced concrete beams
Autorzy:: Karpiuk, Vasyl
Somina, Yuliia
Maistrenko, Oksana
Karpiuk, Fedir
Powiązania:: https://bibliotekanauki.pl/articles/88704.pdf
Data publikacji:: 2020
Wydawca:: Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:: reinforced concrete
eccentric compression
eccentric tension
inclined section
stress
naprężenia
odkształcenia
belka żelbetowa
konstrukcja żelbetowa
wytrzymałość materiału
beton zbrojony
kompresja
Opis:: The paper deals with the working peculiarities of the support zones of reinforced concrete elements subject to bending with due account of the eccentric compression and tension. The authors performed simulation of the stress-strain behaviour of the indicated structures with the aid of “Lira” software which results are shown in the graphical and tabulated form. The performed simulation allowed of tracing the work of the studied sample beams till collapse. Such approach made it possible to single out and generalize the main collapse patterns of the inclined cross-sections of the reinforced concrete elements subject to bending on which basis the authors developed the improved method to calculate their strength (Karpiuk et al., 2019).
Źródło:: System Safety : Human - Technical Facility - Environment; 2020, 2, 1; 207-214
2657-5450
Pojawia się w:: System Safety : Human - Technical Facility - Environment
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Experimental bearing capacity of eccentrically loaded foundation near a slope
Autorzy:: Mansouri, Tarek
Abbeche, Khelifa
Powiązania:: https://bibliotekanauki.pl/articles/178276.pdf
Data publikacji:: 2019
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: square footing
bearing capacity
slope
relative density
eccentric load
Opis:: Based on the response of small-scale model square footing, the present paper shows the results of an experimental bearing capacity of eccentrically loaded square footing, near a slope sand bed. To reach this aim, a steel model square footing of (150 mm × 150 mm) and a varied sand relative density of 30%, 50% and 70% are used. The bearing capacity-settlement relationship of footing located at the edge of a slope and the effect of various parameters such as eccentricity (e) and dimensions report (b/B) were studied. Test results indicate that ultimate bearing capacity decreases with increasing load eccentricity to the core boundary of footing and that as far as the footing is distant from the crest, the bearing capacity increases. Furthermore, the results also prove that there is a clear proportional relation between relative densities –bearing capacity. The model test provides qualitative information on parameters influencing the bearing capacity of square footing. These tests can be used to check the bearing capacity estimated by the conventional methods.
Źródło:: Studia Geotechnica et Mechanica; 2019, 41, 1; 33-41
0137-6365
2083-831X
Pojawia się w:: Studia Geotechnica et Mechanica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: The assessment of the impact of myofascial training on postural control – a case study
Autorzy:: Guzik, Agnieszka
Chwaszcz, Bartłomiej
Drużbicki, Mariusz
Wolan-Nieroda, Andżelina
Wyszyńska, Justyna
Powiązania:: https://bibliotekanauki.pl/articles/454773.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:: balance
eccentric muscle work
qualitative methods
stretching
quantitative methods
Opis:: Introduction. A sedentary lifestyle with lack of physical activity contributes to deteriorated balance among healthy young people. Physical activity is import_ant since it stimulates neuromuscular junctions that control body posture, especially at younger age, when greater postural sway may be observed in stabilography compared to adults. Proper work of individual muscle groups is import_ant to maintain proper balance. Abnormal muscle tone can lead to dysbalances that make it difficult o maintain a stable posture in a variety of conditions. Aim. The aim of the study was to evaluate the effect of a training cycle consisting of stretching of the ilopsoas, rectus femoris, gluteus maximus, hamstring and rectus abdominis, and eccentric training of the above mentioned muscles to improve static and dynamic balance. Methods. Oobjective and qualitative-subjective were used to assess the results in a man aged 22 yrs. Postural control was tested twice in the patient with the Neurocom International Inc. SMART EquiTest device under static conditions without visual control and with dynamic visual surrounding and unstable support surface. Automatic postural reflexes were also evaluated. In addition, clinical tests were performed. Results. Myo-fascial training, which included eccentric training combined with lower limb and trunk stretching improved the postural control in the subject.
Źródło:: European Journal of Clinical and Experimental Medicine; 2017, 1; 71-77
2544-2406
2544-1361
Pojawia się w:: European Journal of Clinical and Experimental Medicine
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Numerical analysis of behaviour of reinforced concrete elements under eccentric compression
Autorzy:: Majewski, T.
Tejchman, J.
Powiązania:: https://bibliotekanauki.pl/articles/1986991.pdf
Data publikacji:: 2002
Wydawca:: Politechnika Gdańska
Tematy:: eccentric compression
concrete
finite element method
reinforced concrete
reinforcement
Opis:: Paper presents results of numerical modelling of behaviour of plane strain reinforced concrete elements under eccentric compression. In the analysis, a finite element method was used based on an elasto-plastic constitutive law by Drucker-Prager with hardening and softening for concrete and an elasto-plastic constitutive law by von Mises for reinforcement. The effects of boundary conditions at the element ends, eccentricity of the compressive load, element slenderness, area of the longitudinal and horizontal reinforcement on the load bearing capacity of elements were studied. The effect of the mesh refinement on the bearing capacity of elements was also analysed. A satisfactory agreement with model tests was achieved.
Źródło:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2002, 6, 3; 411-428
1428-6394
Pojawia się w:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:: Biblioteka Nauki

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