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Tytuł:
Expansion of human sexuality in cyberspace
Autorzy:
Nymś-Górna, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/951809.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
sex
sexuality
Internet
date
couple
Opis:
One of the key aspects of human life is sexuality. Like other areas of human life, it is constantly changing. However, the technological revolution of recent years has been particularly influential. The aim of this article is to present the progressive revolution of human sexuality in the context of the development of new technologies.
Źródło:
Kultura-Społeczeństwo-Edukacja; 2019, 16, 2
2300-0422
Pojawia się w:
Kultura-Społeczeństwo-Edukacja
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Extases inexplicables
Unexplainable Ecstasies
Autorzy:
Bousquet, Louis
Powiązania:
https://bibliotekanauki.pl/articles/2020935.pdf
Data publikacji:
2020
Wydawca:
Komisja Nauk Filologicznych Polskiej Akademii Nauk, Oddział we Wrocławiu
Tematy:
virility
drug
gift
love
couple
Opis:
In Serotonin, the houellebecquian homunculus, Florent-Claude Labrouste, is a “dead man walking.” Disenchanted and full of regrets about his past, he decides to break with society and disappear from the world. Bound one more time to a painful and lonely life, the hero uses antidepressants to numb his pain. His newfound emotion-deprived awareness allows him to reflect on his journey, on the missed opportunities that life had bestowed upon him and on the far-fetched possibilities left behind. This article will examine Serotonin’s take on love and its epitome, the romantic couple. Love according to Houellebecq is an existential deed, one that propels the homunculus into existence in a world bent on its destruction, as the romantic couple creates a space, an otherworldly and literary dimension in which every human can potentially find redemption – every human it seems but Houellebecq’s hero; his shrinking masculinity threatens his chances to partake in any meaningful relationship. Florent-Claude passively witnesses his two first loves leaving his life, and he seems incapable of any meaningful action to stop this decaying process. This work will try to answer the riddle that is the homunculus, torn between a redeeming far-fetched ecstasy and the quick fixes of modern society
Źródło:
Academic Journal of Modern Philology; 2020, 9; 235-244
2299-7164
2353-3218
Pojawia się w:
Academic Journal of Modern Philology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kiedy zaczyna się para? Zamieszkanie, ślub i inne wspólne decyzje – debata podsumowująca projekt badaczy i badaczek par
When Does a Couple Start? Living Together, Marriage and Other Joint Decisions – A Roundtable Summarizing the Project on Couples
Autorzy:
Żadkowska, Magdalena
Jasińska, Joanna
Mizielińska, Joanna
Stasińska, Agata
Schmidt, Filip
Powiązania:
https://bibliotekanauki.pl/articles/427503.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Polska
para
zamieszkanie razem
małżeństwo
socjologia pary
Polska
couple
living together
marriage
sociology of couple
Opis:
Debata toczy się wokół dwóch kluczowych momentów życia pary, jakimi są zamieszkanie i ślub oraz związane z nimi praktyki. Według uczestniczek i uczestników debaty, mimo że związek może trwać i bez tych wydarzeń, to z badań nad parami wynika, że stanowią one ważne punkty zwrotne. W prezentowanej rozmowie zebrano wnioski o kondycji par w Polsce, z uwzględnieniem różnic i podobieństw pomiędzy parami jedno i dwupłciowymi, a także różnic związanych z wiekiem, wykształceniem i pochodzeniem (zarówno narodowym, jak i klasowym).
The roundtable discussion revolves around the two key moments in a couple’s life: living together and marriage (and related practices). The participants of the discussion have agreed that although the relationship can last without these two moments, they are important turning points for the study of pairs. In the debate, the findings concerning the condition of couples in Poland have been presented, and particular attention has been paid to the differences and similarities between one and two-sex couples as well as between the couples of different age, education and origin, understood as both national and class background.
Źródło:
Studia Socjologiczne; 2018, 3(230); 101-123
0039-3371
Pojawia się w:
Studia Socjologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Global stability for double-diffusive convection in a couple-stress fluid saturating a porous medium
Autorzy:
Choudhary, Shalu
-, Sunil
Powiązania:
https://bibliotekanauki.pl/articles/949858.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
couple-stress parameter
solute gradient
Brinkman number
Opis:
We show that the global non-linear stability threshold for convection in a double-diffusive couplestress fluid saturating a porous medium is exactly the same as the linear instability boundary. The optimal result is important because it shows that linearized instability theory has captured completely the physics of the onset of convection. It is also found that couple-stress fluid saturating a porous medium is thermally more stable than the ordinary viscous fluid, and the effects of couple-stress parameter (F ) , solute gradient (S f ) and Brinkman number (Da ) on the onset of convection is also analyzed.
Źródło:
Studia Geotechnica et Mechanica; 2019, 41, 1; 13-20
0137-6365
2083-831X
Pojawia się w:
Studia Geotechnica et Mechanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Komunikacja, relacje partnerskie oraz funkcjonowanie seksualne par leczących się z powodu niepłodności
Communication, partnership and sexual functioning of couples treated for infertility
Autorzy:
Czyżkowska, Anna
Rawińska, Marta
Jóźwik, Milena
Powiązania:
https://bibliotekanauki.pl/articles/564896.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie
Tematy:
infertility
communication
sexual functioning
couple’s relationship
Opis:
The goal of this study was to investigate how infertility changes couples’ relations, communication and sexual functioning. In the research participated 50 women during the treatment of infertility and 50 healthy women in the control group. The study confirmed our hypothesis. Couples during the treatment of infertility have more problems in their relationship (in comparison to couples without infertility problem) in following aspects: communication, task accomplishment and role performance, affective expression, affective involvement, values and norms. Communication in both groups (study group as well as control group) correlates with sexual satisfaction, the correlation between couples’ relations and sexual satisfaction are higher in healthy women group than in infertile women group.
Źródło:
Studia Psychologica; 2013, 13, 2; 7-14
1642-2473
Pojawia się w:
Studia Psychologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Eigenvalue approach to nanobeam in modified couple stress thermoelastic with three-phase-lag model induced by ramp type heating
Autorzy:
Kumar, R.
Devi, S.
Powiązania:
https://bibliotekanauki.pl/articles/279203.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
modified couple stress thermoelastic
eigenvalue approach
nanobeam
Opis:
This article deals with the study of a thermoelastic nanobeam in a modified couple stress theory subjected to ramp-type heating. The mathematical model is prepared for the nanobeam in thermoelastic three-phase-lag. The Laplace transform and the eigenvalue approach are used to find the displacement component, lateral deflection, temperature change and axial stress of the thermoelastic beam. The general algorithm of the inverse Laplace transform is developed to compute results numerically. The comparison of three-phase-lag, dual-phaselag and GN-III (1993) models are represented, and their illustration is depicted graphically. This study finds the applications in engineering, medical science, sensors, etc.
Źródło:
Journal of Theoretical and Applied Mechanics; 2017, 55, 3; 1067-1079
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microstructural considerations on SH-wave propagation in a piezoelectric layered structure
Autorzy:
Goyal, R.
Kumar, S.
Powiązania:
https://bibliotekanauki.pl/articles/280348.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
SH-wave
piezoelectricity
couple stress
characteristic length
Opis:
Shear wave based acoustic devices are being used in gaseous and liquid environments because of their high-sensitivity. The theoretical study of horizontally polarized shear (SH) waves in a layered structure consisting of a piezoelectric ceramic of P ZT − 5H or BaT iO3 material overlying a couple stress substrate is presented in this paper. The considered substrate is supposed to be exhibiting microstructural properties. The closed form expression of dispersion relations are derived analytically for electrically open and short conditions. The effects of internal microstructures of the couple stress substrate, thickness of P ZT − 5H or BaT iO3 ceramic, piezoelectric and dielectric constants are illustrated graphically on the phase velocity of the piezoelectric layer under electrically open and short conditions.
Źródło:
Journal of Theoretical and Applied Mechanics; 2018, 56, 4; 993-1004
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
LIFE CYCLE INCOME OF WOMEN AND MEN IN POLAND
Autorzy:
Liberda, Barbara
Pęczkowski, Marek
Powiązania:
https://bibliotekanauki.pl/articles/453077.pdf
Data publikacji:
2014
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki
Tematy:
gender
income
life cycle
married
cohabited
couple
Polska
Opis:
We examine the contribution of married and cohabited women and men to the joint income of the couple. We use individual income data from Household Budget Surveys for Poland in 2011 from a sample of 16,538 married and cohabited couples. The results of analysis show that contribution of men to total household income is higher than contribution of their female partners through the life cycle, controlling for type of a couple, education levels of genders and number of children. The contribution of married and cohabited women to total income of the couple remains almost flat during the life cycle.
Źródło:
Metody Ilościowe w Badaniach Ekonomicznych; 2014, 15, 1; 76-91
2082-792X
Pojawia się w:
Metody Ilościowe w Badaniach Ekonomicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Polish Adaptation of Marital Satisfaction Questionnaire For Older Persons (MSQFOP)
Polska adaptacja Kwestionariusza Satysfakcji z Małżeństwa dla Osób Starszych MSQFOP
Autorzy:
Brudek, Paweł Jan
Powiązania:
https://bibliotekanauki.pl/articles/1368490.pdf
Data publikacji:
2021-01-13
Wydawca:
Uniwersytet Opolski. Redakcja Wydawnictw Wydziału Teologicznego
Tematy:
marital satisfaction
Polish adaptation
late adulthood
older couple
Opis:
The article outlines the results of academic endeavors to develop a Polish adaptation of Stephen Haynes’ and colleagues Marital Satisfaction Questionnaire For Older Persons (MSQFOP). The results obtained using the Polish version are comparable to those obtained using the original research instrument, which proves that the Polish MSQFOP scale adaptation can be successfully used for research purposes. The scale consists of 24 items covering four dimensions: Communication and expression of feelings, Sex life, Health and Affiliation. The scale testing procedure involved a research sample consisting of 832 people. The Cronbach's alpha coefficient was .94 for the entire scale and oscillated between .68 and .94 for the subscales.
W artykule zaprezentowano wyniki prac nad polską adaptacją Kwestionariusza Satysfakcji z Małżeństwa dla Osób Starszych (The Marital Satisfaction Questionnaire For Older Persons) MSQFOP autorstwa S. N. Haynesa i współpracowników. Przedstawiono właściwości psychometryczne polskiej wersji MSQFOP. Otrzymane rezultaty są porównywalne z danymi dla wersji oryginalnej narzędzia i potwierdzają, że polska wersja kwestionariusza MSQFOP może mieć zastosowanie w badaniach naukowych. Kwestionariusz składa się z 24 itemów tworzących cztery wymiary: Komunikacja/Wyrażanie uczuć, Pożycie seksualne, Zdrowie, Afiliacja. Skala przetestowana została w badaniach 832 osób. Wskaźnik rzetelności (α-Cronbacha) dla całej skali wynosi 0,94 a w odniesieniu do poszczególnych podskal waha się od 0,68 do 0,94.
Źródło:
Family Forum; 2020, 10; 277-297
2084-1698
Pojawia się w:
Family Forum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Consequences of Childhood Sexual Abuse for Intimate Couple Relationship according to Relational Marital Therapy
Autorzy:
Jerebic, Sara
Jerebic, Drago
Powiązania:
https://bibliotekanauki.pl/articles/668770.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Papieski Jana Pawła II w Krakowie
Tematy:
Childhood sexual abuse
couples
sexuality
intimacy
relational couple therapy
Opis:
Childhood sexual abuse is a traumatic experience, the consequences of which are numerous in adult intimate relationships. Couples often have problems in maintaining their relationships and frequently face problems in their sexual life. Because of the consequences that they experience and which they usually do not attribute to past trauma, couples increasingly seek therapeutic help. A safe therapeutic relationship enables the formation of new neural connections and a change in relational structures. Identifying and understanding the consequences of sexual abuse with elements of dual awareness is essential for the partnership and healing of both partners. The purpose of the article is to deepen the understanding of the consequences of childhood sexual abuse for couple relationships according to the Relational Marital Therapy paradigm.
Źródło:
The Person and the Challenges. The Journal of Theology, Education, Canon Law and Social Studies Inspired by Pope John Paul II; 2018, 8, 2
2391-6559
2083-8018
Pojawia się w:
The Person and the Challenges. The Journal of Theology, Education, Canon Law and Social Studies Inspired by Pope John Paul II
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling of Love-type waves in an elastic layer sandwiched between viscous liquid half space and size dependent couple stress substrate
Autorzy:
Sharma, Vanita
Kumar, Satish
Powiązania:
https://bibliotekanauki.pl/articles/280534.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
Love-type waves
couple stress
viscous liquid
viscosity
sensors
Opis:
Dispersion curves employed for designing Love wave based liquid sensing devices may provide more accurate information if due consideration is given to parameters describing microstructural behavior of the substrate. The present study involves mathematical modelling of Love waves propagating in a hybrid structure consisting of an elastic layer in the middle overlying a size dependent substrate, loaded with a viscous liquid (Newtonian) half space. Numerical computations are carried out to graphically demonstrate the effects of various parameters: characteristic length of the substrate, thickness of the elastic layer, viscosity and density of the overlying viscous liquid (Newtonian) on dispersion characteristics.
Źródło:
Journal of Theoretical and Applied Mechanics; 2019, 57, 4; 1009-1019
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of notch wear mechanisms in the machining of nickel-based Inconel 718 alloy
Autorzy:
Grzesik, Wit
Powiązania:
https://bibliotekanauki.pl/articles/1428916.pdf
Data publikacji:
2021
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
tool wear
aerospace alloy
oxidation mechanism
diffusion couple method
Opis:
This paper highlights tool wear mechanisms in the machining of heat resistance alloys including nickel-based Inconel 718 alloy which is one of the most popular material in the aircraft industry. Special attention was paid to the notch wear which develops on the flank face due to high temperature oxidation of the cutting tool material at temperature of about 800°C. The experimental procedure includes the diffusion couple methods and tool wear tests which assess the degradation of the deposited coating. The obtained results were supported by SEM images of the flank face periphery and EDS analysis performed in the regions of intensive oxidation. Some conclusions and ongoing research on the investigation of the oxidation phenomenon of cutting tool materials are outlined.
Źródło:
Journal of Machine Engineering; 2021, 21, 1; 56-66
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The onset of thermal convection in couple-stress fluid in hydromagnetics saturating a porous medium
Autorzy:
Rana, G. C.
Powiązania:
https://bibliotekanauki.pl/articles/201216.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
couple stress fluid
magnetic field
porous medium
thermal convection
Opis:
In this paper, the effect of magnetic field on thermal convection in couple-stress fluid saturating a porous medium is considered. By applying linear stability theory and the normal mode analysis method, a mathematical theorem is derived which states that the viscoelastic thermal convection at marginal state, cannot manifest as stationary convection if the thermal Rayleigh number R, the medium permeability parameter Pι the couple-stress parameter F and the Chandrasekher number Q, satisfy the inequality R ≤4π2/Pl (1 + 2π2F + PlQ/2ε) the result clearly establishes the stabilizing character of couple-stress parameter and magnetic field whereas destabilizing character of medium permeability.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2014, 62, 2; 357-362
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dispersion of Rayleigh Waves in a Microstructural Couple Stress Substrate Loaded with Liquid Layer Under the Effects of Gravity
Autorzy:
Sharma, V.
Kumar, S.
Powiązania:
https://bibliotekanauki.pl/articles/947783.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
couple stress theory
Rayleigh waves
gravity
characteristic length
liquid loading
Opis:
Bone loss is one of the serious health issues in bedridden patients or young generation due to lack of physical activities. Mechanical forces are exerted on the bones through ground reaction forces, liquid loadings and by other contraction activities of the muscles. We are assuming an isotropic half-space with mechanical properties equivalent to that of bone exhibiting microstructures. Consistent couple stress theory introduces an additional material parameter called characteristic length which accounts for inner microstructure of the material. Dispersion relations for leaky Rayleigh waves are derived by considering a model consisting of couple stress half space under the effects of gravity and loaded with inviscid liquid layer of finite thickness or a liquid half space. Impact of the gravity, liquid loadings and microstructures of the material are investigated on propagation of leaky Rayleigh type waves. Phase velocity of leaky Rayleigh waves is studied for five different values of characteristic length parameter which are of the order of internal cell size of the considered material. Variations in phase velocity of leaky Rayleigh waves are also studied under the effect of gravity parameter and thickness of liquid loadings.
Źródło:
Archives of Acoustics; 2018, 43, 1; 11-20
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dispersion of SH waves in a viscoelastic layer imperfectly bonded with a couple stress substrate
Autorzy:
Sharma, V.
Kumar, S.
Powiązania:
https://bibliotekanauki.pl/articles/949130.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
SH waves
couple stress theory
imperfect bonding
characteristic length
viscoelasticity
Opis:
The paper deals with propagation of SH waves in a viscoelastic layer over a couple stress substrate with imperfect bonding at the interface. A dispersion equation of SH waves in a viscoelastic layer overlying the couple stress substrate with an imperfect interface between them has been obtained. Dispersion equations for propagation of SH waves with perfectly bonded interface and slippage interface between two media are also obtained as particular cases. Effects of the degree of imperfectness of the interface are studied on the phase velocity of SH waves. The dispersion curves are plotted and the effects of material properties of both couple stress substrate and viscoelastic layer are studied. The effects of internal microstructures of the couple stress substrate in terms of characteristic length of the material are presented. The effects of heterogeneity, friction parameter and thickness of the viscoelastic layer are also studied on the propagation of SH waves.
Źródło:
Journal of Theoretical and Applied Mechanics; 2017, 55, 2; 535-546
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of liquid loadings on lamb waves in context of size dependent couple stress theory
Autorzy:
Sharma, V.
Kumar, S.
Powiązania:
https://bibliotekanauki.pl/articles/949331.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
couple stress
characteristic length
Lamb waves
elastic waves
liquid loadings
Opis:
For understanding the effects of an internal microstructure, generalised microcontinuum theories with additional microstructural parameters are developed. One such a parameter, called the characteristic length of the material comparable with the internal cell size of the material is involved in the couple stress theory. The problem of propagation of Lamb waves in a plate with an internal microstructure and loaded with an inviscid liquid on both sides is studied using the couple stress theory. The dispersion equation of Lamb waves with the liquid loadings is derived. The impact of the liquid loadings is studied on the propagation of Lamb waves. The effect of the characteristic length is also studied on the phase velocity of Lamb waves in the plate for various modes in the presence of liquid loadings.
Źródło:
Journal of Theoretical and Applied Mechanics; 2015, 53, 4; 925-934
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Franco-German Leadership in the EU: Lessons from the Euro Crisis
Autorzy:
Hilz, Wolfram
Powiązania:
https://bibliotekanauki.pl/articles/2091696.pdf
Data publikacji:
2020-06-24
Wydawca:
Uniwersytet Warszawski. Wydział Nauk Politycznych i Studiów Międzynarodowych
Tematy:
Euro crisis
leadership in Europe
Germany
France
Franco-German
couple
Opis:
Since the outbreak of the Euro crisis in 2010 the European Union seems to tumble from one crisis to the next: From Arab spring to the Ukraine conflict, from Syrian civil war to the refugee crisis. So far the EU members did not find a way out of these crises. Although in times when all EU partners seem to be paralyzed by an aversion of strengthening the EU institutions they might be forced working closer together anyway. Against the background of a general loss of orientation inside the EU this article takes a closer look at the handling of the Euro crisis. It discusses whether revived Franco-German leadership inside Europe might be an option to give orientation to all EU members. Starting with a brief review of the strengths of this bilateral couple during the initial phase of European integration it is the aim to detect its unique capability to lead the EU out of European crises. Since Germans and French after serious disputes and despite different economic interests managed to work together for European solutions, both might be a role model for all EU members. The way the governments in Berlin and Paris overcame their differences during the Euro crisis delivers insights for all EU partners to cope with the structural economic imbalances.
Źródło:
Stosunki Międzynarodowe - International Relations; 2015, 51, 4; 255-268
0209-0961
Pojawia się w:
Stosunki Międzynarodowe - International Relations
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A multi-spring model for buckling analysis of cracked Timoshenko nanobeams based on modified couple stress theory
Autorzy:
Akbarzadeh Khorshidi, M.
Shariati, M.
Powiązania:
https://bibliotekanauki.pl/articles/281289.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
buckling
crack
modified couple stress theory
Timoshenko nanobeam
spring model
Opis:
This paper develops a cracked nanobeam model and presents buckling analysis of this developed model based on a modified couple stress theory. The Timoshenko beam theory and simply supported boundary conditions are considered. This nonclassical model contains a material length scale parameter and can interpret the size effect. The cracked nanobeam is modeled as two segments connected by two equivalent springs (longitudinal and rotational). This model promotes discontinuity in rotation of the beam and additionally considers discontinuity in longitudinal displacement due to presence of the crack. Therefore, this multi-spring model can consider coupled effects between the axial force and bending moment at the cracked section. The generalized differential quadrature (GDQ) method is employed to discretize the governing differential equations, boundary and continuity conditions. The influences of crack location, crack severity, material length scale parameter and flexibility constants of the presented spring model on the critical buckling load are studied.
Źródło:
Journal of Theoretical and Applied Mechanics; 2017, 55, 4; 1127-1139
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Magneto-rotatory compressible couple-stress fluid heated from below in porous medium
Autorzy:
Mehta, C. B.
Powiązania:
https://bibliotekanauki.pl/articles/178540.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
compressible couple-stress fluid
thermal convection
porous medium
rotation
magnetic field
Opis:
The study is aimed at analysing thermal convection in a compressible couple stress fluid in a porous medium in the presence of rotation and magnetic field. After linearizing the relevant equations, the perturbation equations are analysed in terms of normal modes. A dispersion relation governing the effects of rotation, magnetic field, couple stress parameter and medium permeability have been examined. For a stationary convection, the rotation postpones the onset of convection in a couple stress fluid heated from below in a porous medium in the presence of a magnetic field. Whereas, the magnetic field and couple stress postpones and hastens the onset of convection in the presence of rotation and the medium permeability hastens and postpones the onset of convection with conditions on Taylor number. Further the oscillatory modes are introduced due to the presence of rotation and the magnetic field which were non-existent in their absence, and hence the principle of exchange stands valid. The sufficient conditions for nonexistence of over stability are also obtained.
Źródło:
Studia Geotechnica et Mechanica; 2016, 38, 1; 55-63
0137-6365
2083-831X
Pojawia się w:
Studia Geotechnica et Mechanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Shear band development in modified DEM: importance of couple stress
Autorzy:
Iwashita, K.
Oda, M.
Powiązania:
https://bibliotekanauki.pl/articles/1953963.pdf
Data publikacji:
1998
Wydawca:
Politechnika Gdańska
Tematy:
shear band development
distinct element method
couple stress
numerical simulation tests
Opis:
Numerical simulation tests were carried out using the distinct element method (DEM) with great interest in how large couple stress is actually generated in a shear band. To do this, the conventional DEM was modified slightly, so that the effect of rolling resistance at contact points can be taken into account (called MDEM). It has been found that MDEM provides a powerful tool in simulating not only the generation of large voids inside a shear band but also the high gradient of particle rotation along the shear band boundaries, in a quite similar manner to those of natural granular soils; and that couple stress, although it is very small, is certainly developed in a consistent manner with the particle relation gradient developed in a shear band.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 1998, 2, 3; 443-460
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie metody PPM do oceny pary ciernej w układzie hamulcowym samochodu
Application of PPM method for assessment of frictional coupe in car brake system
Autorzy:
Jósko, M.
Powiązania:
https://bibliotekanauki.pl/articles/107832.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
metoda PPM
para cierna
układ hamulcowy
PPM method
frictional couple
braking system
Opis:
W artykule przedstawiono ocenę możliwości zastosowania nieniszczącej metody Prescale Pressure Measurment (PPM) do oceny funkcjonowania i stanu pary ciernej klocek–tarcza w układzie hamulcowym pojazdu samochodowego. Przeprowadzono ogólną analizę potencjalnych możliwości metody w zastosowaniu do węzłów samochodu. Wykonano skalowanie folii na prasie hydraulicznej w celu ustalenia zabarwienia, odpowiadającego danemu naciskowi, w wybranym zakresie ciśnienia. Następnie zbadano rozkład nacisków między klockiem a tarczą i ustalono ich wartości, co dało pogląd na współpracę tych elementów. Pozwoliło także wyciągnąć wnioski, dotyczące funkcjonowania tych elementów tribologicznych pojazdu samochodowego oraz odnieść się do możliwości samej metody.
The article presents an assessment of the possibility of applying the nondestructive Prescale Pressure Measurement (PPM) method to evaluation the function and condition of the frictional couple type brake pad–brake disc in an automotive vehicle. An overall analysis of the potential capabilities of the method for use in car nodes was performed. The PPM film was scaled on a hydraulic press to determine the intensity of color that corresponds to the given pressure within the selected pressure range. Then, the distribution of pressure between the brake pad and the brake disc was investigated and their values were determined, which gives a view on the cooperation of these elements. It also allowed us to draw conclusions about the functioning of these tribological elements of the automotive vehicle and to refer to the possibilities of the method itself.
Źródło:
Badania Nieniszczące i Diagnostyka; 2017, 4; 22-27
2451-4462
2543-7755
Pojawia się w:
Badania Nieniszczące i Diagnostyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Troska duszpasterstwa rodzin o małżeńswo
The family pastorates care for the married couple
Autorzy:
Parysiewicz, Beata
Powiązania:
https://bibliotekanauki.pl/articles/31341003.pdf
Data publikacji:
2012
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
Tematy:
duszpasterstwo rodzin
małżeństwo
strategia pomocy
family pastorate
married couple
strategy of aid
Opis:
The article systemizes the knowledge about actions taken by the family pastorate for the Catholic married couple. The actions are referred to the marital bond in the legal, material, psychological, spiritual, moral and religious spheres. They are considered in three aspects: assumptions about help towards the couple, their realization and the main problems that appear in the work for the married couple.
Źródło:
Roczniki Pastoralno-Katechetyczne; 2012, 4; 93-102
2081-1829
Pojawia się w:
Roczniki Pastoralno-Katechetyczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Problem legalizacji związków partnerskich osób tej samej płci w kampanii wyborczej 2011 roku
The problem of same-sex couple partnership legalization in 2011 election campaign
Autorzy:
Tomczak, Łukasz
Powiązania:
https://bibliotekanauki.pl/articles/514640.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Śląski. Wydział Nauk Społecznych
Tematy:
polish political parties
left
right
election
partnership of same-sex couple
homosexuality
Opis:
The article presents diff erences between the electorate and political parties programs in a political right point of view according to the principle of same-sex couples to certificate their relations. Parties of the left such as the Democratic Left Alliance (Sojusz Lewicy Demokratycznej) and Palikot`s Movement (Ruch Palikota) tried to support the idea of the same-sex couple partnerships however they didn’t try to make them equal with the ordinary marriages. The voters of those parties where more often ready to accept the same-sex couple partnerships, nevertheless the right side pulls in the opposite electorate. Most of the Civic Platform (Platforma Obywatelska RP) voters didn’t support the same-sex couples partnership idea, that kind of attitude dominate the Law and Justice (Prawo i Sprawiedliwość) electorate too. Nowadays the aversion to the same-sex couples rights can be clearly seen among the whole society. During the 2011 campaign also clearly become the increase of support for the same-sex couples partnership over the previous year especially in political left wing of electorate. Social ratio to the main aspects of the article divines polish political parties as much as the most of the voters, creating a big line between the left and the right side of polish politics.
Źródło:
Political Preferences; 2012, 3; 237-249
2449-9064
Pojawia się w:
Political Preferences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical simulation of flow and heat transfer in hydromagnetic micropolar fluid between two stretchable disks with viscous dissipation effects
Autorzy:
Ali, K.
Ahmad, S.
Ashraf, M.
Powiązania:
https://bibliotekanauki.pl/articles/279778.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
MHD
micropolar fluid
stretchable disk
viscous dissipation
couple stress
heat transfer rate
Opis:
A study of magnetohydrodynamic (MHD) flow with viscous dissipation and heat transfer in an electrically conducting laminar steady viscous incompressible micropolar fluid between two infinite uniformly stretching disks is presented. The transformed self similar nonlinear ODEs are first linearized using a quasi linearization method and then solved by employing a combination of a direct and an iterative method. The study may be beneficial to flow and thermal control of polymeric processing.
Źródło:
Journal of Theoretical and Applied Mechanics; 2016, 54, 2; 633-643
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Free vibration of a hyper-elastic microbeam using a new “augmented Biderman model”
Autorzy:
Karami Mohammadi, Ardeshir
Danaee Barforooshi, Saeed
Powiązania:
https://bibliotekanauki.pl/articles/949138.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
nonlinear vibration
hyper-elastic microbeam
augmented Biderman model
modified couple stress theory
Opis:
A new augmented Biderman model inspired by the modified couple stress theory has been introduced to investigate the size effect in addition to nonlinear material effects. Then, this model is used to investigate free vibration of a hyper-elastic microbeam. Classical Biderman strain energy does not include the effect of small size in hyper-elastic materials. In order to consider the effect of small size, terms inspired by the modified couple stress theory are added to the classical Biderman strain energy function. In order to provide the possibility of calculating these terms, a relation between the material constants in the hyper-elastic Biderman model and the linear elastic constants is obtained. The equations of motion of the microbeam is obtained based on the extended Hamilton principle, and then is solved using Galerkin discretization and perturbation methods. The effect of thickness to length scale ratio on the normalized frequency is studied for different modes. It is shown that when thickness gets larger in comparison with the length scale parameter, the normalized frequency tends to classical Biderman results. The results obtained are validated by results of the Runge-Kutta numerical method and indicate an excellent agreement. Mode shapes of the microbeam based on the classical and the augmented models are depicted, where the augmented model anticipates stiffer behavior for hyperelastic microbeams.
Źródło:
Journal of Theoretical and Applied Mechanics; 2019, 57, 3; 739-750
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
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