Application of Irreversible Thermodynamics in Finite Viscoelastic Deformations

1965 ◽  
Vol 32 (3) ◽  
pp. 623-629 ◽  
Author(s):  
George Lianis

In this paper, Onsager’s principle of irreversible thermodynamics is applied to viscoelastic materials subjected to finite deformation. The constitutive equation of Ref. [10] for small dynamic strains superposed on a finite static deformation is used. The state of the resulting deformation can be considered as a small deviation from an equilibrium reference state. The latter is the state of equilibrium of a material subjected to a finite deformation in which the material is maintained for a long time.

Author(s):  
Akil Ibrahim Al-Zuhari

The article defines the features of the process of forming the research tradition of studying the institute of parliamentarism as a mechanism for the formation of democracy. It is established that parliamentarism acts as one of the varieties of the regime of functioning of the state, to which the independence of the representative body from the people is inherent, its actual primacy in the state mechanism, the division of functions between the legislative and executive branches of government, the responsibility and accountability of the government to the parliament. It is justified that, in addition to the regime that fully meets the stated requirements of classical parliamentarism, there are regimes that can be characterized as limited parliamentary regimes. The conclusions point out that parliamentarism does not necessarily lead to a democracy regime. At the first stage of development of statehood, it functions for a long time in the absence of many attributes of democracy, but at the present stage, without parliamentarism, democracy will be substantially limited. Modern researchers of parliamentarism recognize that this institution is undergoing changes with the development of the processes of democracy and democratization. This is what produces different approaches to its definition. However, most scientists under classical parliamentarianism understand such a system, which is based on the balance of power. This approach seeks to justify limiting the rights of parliament and strengthening executive power. Keywords: Parliamentarism, research strategy, theory of parliamentarism, types of parliamentarism


2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Yihui Quek ◽  
Stanislav Fort ◽  
Hui Khoon Ng

AbstractCurrent algorithms for quantum state tomography (QST) are costly both on the experimental front, requiring measurement of many copies of the state, and on the classical computational front, needing a long time to analyze the gathered data. Here, we introduce neural adaptive quantum state tomography (NAQT), a fast, flexible machine-learning-based algorithm for QST that adapts measurements and provides orders of magnitude faster processing while retaining state-of-the-art reconstruction accuracy. As in other adaptive QST schemes, measurement adaptation makes use of the information gathered from previous measured copies of the state to perform a targeted sensing of the next copy, maximizing the information gathered from that next copy. Our NAQT approach allows for a rapid and seamless integration of measurement adaptation and statistical inference, using a neural-network replacement of the standard Bayes’ update, to obtain the best estimate of the state. Our algorithm, which falls into the machine learning subfield of “meta-learning” (in effect “learning to learn” about quantum states), does not require any ansatz about the form of the state to be estimated. Despite this generality, it can be retrained within hours on a single laptop for a two-qubit situation, which suggests a feasible time-cost when extended to larger systems and potential speed-ups if provided with additional structure, such as a state ansatz.


1989 ◽  
Vol 203 ◽  
pp. 199-214 ◽  
Author(s):  
A. Shima ◽  
Y. Tomita ◽  
D. C. Gibson ◽  
J. R. Blake

An experimental study has been made of the growth and collapse of a bubble near a composite surface consisting of two viscoelastic materials. The migratory characteristics of the bubble are examined by means of streak photography. The bubble migration depends not only on the properties of the composite surface but also on bubble size and distance from the surface. Both the surface stiffness and surface inertia are considered to be effective parameters contributing to the bubble migration: the former seeming to be a particularly important factor. The state of neutral bubble collapse, with no migration towards or away from a surface, can be made to occur with an appropriate combination of the surface stiffness and inertia.


2011 ◽  
Vol 38 (1) ◽  
pp. 5-22
Author(s):  

AbstractFor many communists working in the Soviet state apparatus during the 1920s, the state's continued employment of so-called “bourgeois specialists” (spetsy) was an ideological affront and an obstacle to proletarian advancement. In their eyes, until the spetsy were removed and workers staffed the institutions of the state, the revolution would be neither secure nor its promises fulfilled. Based on archival research, this article traces rank-and-file communists' attempts to remove one such specialist, N. A. Dobrosmyslov, from his position in the Tax Department (Gosnalog) of the People's Commissariat of Finances (Narkomfin). Dobrosmyslov had been a long-time official in the tsarist tax bureaucracy and had also worked for the Provisional Government in 1917. Communist opposition to him took the form of a denunciation campaign that focused on his alleged anti-Sovietism, his professional competence, his arrogant manner, his high salary, and his attempt to obtain a large pension from the government. The documents related to the case reveal the atmosphere of suspicion and often open hostility that surrounded the spetsy. They provide evidence of the contrasting evaluations of the spetsy made by leading communist administrators and by the lower-level communists who worked closely with them. They also show how important the issue of material compensation was for this latter group. Finally, the case provides an example of how biography could be interpreted and manipulated to serve particular ends, especially in the context of political and personal denunciation.


2009 ◽  
pp. 178
Author(s):  
Tiurma Magihut Pitta Allagan

AbstrakMixed marriage has been long time done in Indonesia is includedinternational mixed, inter regional mixed, inter local mixed, inter group andinter religious mixed marriage. Registration through international mixedmarriage could be done, but to inter religious one is questioning. This articleexamines the history and maturity of mixed marriages, especiallyinternational marriages and mixed marriages between religions, as well asimplementation and expansion. In the advance of mixed marriages inIndonesia has undergone a change. Mixed marriages are based GHR (priorDutch Mixed Marriage Law in Indonesia) broader scope than mixedmarriages according to Law No.1 of 1974. Mixed marriages in the GHR notonly includes a mixed marriage between citizens, but also a mixed marriagebetween regions (inter-regional), inter-mixed marriage where the (interlocal),inter-marriage mixed marriage mixed groups and inter-religious.Mixed marriage in the Act No.1 of 1974 only covers a mixed marriagebetween citizens of the state


Author(s):  
Agrafena Innokentyevna Makarova

Based on archival documents and previously pub-lished materials, an attempt is made to show the role of the pre-revolutionary education system in the socio-cultural development of the Yakut region. Si-beria was a place of exile for a long time and the state was in no hurry to develop education here. But the liberal reforms of 1860–1870 created the prereq-uisites for the development of the education system. The paper shows the formation and development of educational institutions in the region, provides in-formation on the number of schools and the number of students. The role of political exiles in raising the general cultural level of the local population is also revealed. The author comes to the conclusion that in the Yakut region, thanks to the state educational policy on education of foreign suburbs and public initiative, primary and then secondary educational institutions begin to open, which have had a signifi-cant impact on the socio-cultural life of the region.


2003 ◽  
Vol 52 (2) ◽  
pp. 110-115
Author(s):  
I. Y. Kogan ◽  
А. A. Poljanin ◽  
N. G. Pavlova

The lecture provides information on approaches to the assessment of fetal cardiotocography during pregnancy and childbirth. Assessment of the functional state of the fetus during pregnancy and childbirth remains one of the most difficult tasks of perinatology and obstetrics. The question of the state of the intrauterine fetus has been of interest to obstetricians for a long time. For the first time, the possibility of auscultation of fetal heart sounds was reported in 1818.


Author(s):  
Наталья Коваленко ◽  
Андрей Чекунов

Статья посвящена анализу и оценке мер государственной поддержки импортозамещения в национальном сельхозмашиностроении. Рассматриваются ход и результаты государственной поддержки импортозамещения в отрасли, недостатки, эффективность. Предложены шаги, способные повысить эффективность государственной поддержки импортозамещения в сельхозмашиностроении Российской Феде-рации. Effective development of domestic agricultural engineering ensures the achievement of high production volumes of agri-food products. To improve the national production of agricultural machinery, the leading countries of the world provide state support to their pro-ducers. At the same time, these countries stimulate the development of the industry in order to dominate their producers in the domestic market, and to expand into the markets of foreign countries. For a long time, Russia has been the object of widespread expansion by foreign manufacturers of agricultural equipment. At the same time, under the conditions of economic sanctions, dependence on im-ported agricultural equipment limits the development of the domes-tic agro-industrial complex. Significantly reduce dependence on foreign supplies of agricultural equipment and ensure the competi-tiveness of domes- tic products should be implemented in the indus-try's current policy of import substitution. The purpose of the article is to analyze the implementation of the policy of import substitution in domes-tic agricultural machinery and assess its impact on the development of the industry. Government sup-port has a significant impact on the development of the industry, which is confirmed by statistical data and materials of market participants. Analysis of the literature and regulatory acts showed that the state financial support for the industry is carried out in 4 areas: industrial, technological, marketing and personnel. The effectiveness of state support is determined by the state of the industry, the situation on the domestic market of agricultural equipment and the achievement of support goals. To date, govern-ment support measures for import substitution in the industry have not ensured its stable development and increased competitiveness of the products produced. The authors analyzed the implementation of the state policy of import substitution in the domestic agricultural machinery in the framework of the relevant sectoral plan. Based on the analysis, a conclusion was made about the need to improve measures of state support for the industry.


Author(s):  
Paul Broda

Among the hundreds of Austrian refugees who arrived in Britain in 1938 after Hitler annexed Austria was the author's father, Engelbert Broda, who shortly afterwards was joined by his wife Hildegard. Engelbert Broda later made contact with the Society for the Protection of Science and Learning (SPSL), and it was through Esther Simpson, the long-time Secretary of the SPSL, that Charles Goodeve took him on to work on visual purple (rhodopsin), a vital component of the human retina. This chapter presents a selection of letters between Esther Simpson and Engelbert Broda. The extracts given here relate to the foundation of the Academic Assistance Council, Esther Simpson's beliefs, Engelbert Broda's memories much later of what her help had meant to him personally, and the state of the world. Other regular topics are their work, her musical activities, and the comings and goings of mutual friends including L. Kowarski, J. Guéron, and O. R. Frisch, all of whom they knew from Cambridge days. The emphasis in this selection is in representing Esther Simpson's own attitudes and achievements in her own words.


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