Entanglement Networks of 1,2-Polybutadiene Crosslinked in States of Strain. II. Application of the Mooney-Rivlin Equation to Networks Crosslinked at 0°C

1975 ◽  
Vol 48 (5) ◽  
pp. 1004-1007
Author(s):  
Ole Kramer ◽  
John D. Ferry
Keyword(s):  
Compressive Force ◽  
Ideal Theory ◽  
The State ◽  
Linear Polymers ◽  
Extension Ratio ◽  
Apparent Concentration ◽  
Effective Network ◽  
The One ◽  
Entanglement Network ◽  
The Ideal

Abstract This paper gives the results of a recalculation of the data in Paper I of this series, with an expression for strain energy which is a special case of the Mooney-Rivlin theory, instead of the ideal theory based on Gaussian networks. It was shown in Paper I that the apparent concentration of elastically effective network strands terminated by entanglements, νN, can be estimated by crosslinking linear polymers in states of strain. The maximum value of νN found by this method was about one-half the value obtained from viscoelastic measurements in the rubbery plateau zone, νc=2.5×10−4 mol cm−3. The low value of νN was primarily attributed to the crosslinking temperature being too far (12°) above the glass-transition temperature, Tg. Crosslinking temperatures closer to Tg give values of νN close to νc, as will be shown in Paper III of this series. In addition, it was found that these networks behave slightly differently from the predictions of the ideal Gaussian composite network theory: ideal Gaussian composite networks are isotropic relative to the state of ease whereas these networks exhibit anisotropy of equilibrium swelling, relative to the state of ease, in n-heptane; and νN, instead of being a constant, was found to decrease with increasing extension ratio during crosslinking, λ0. The latter result is illustrated in Figure 1 for irradiation times from 3 to 5 h; here, νN is plotted against the extension ratio, λs, in the state of ease in which the retractive force of the entanglement network and the compressive force of the crosslink network are equal and opposite in direction. The experimental points can be fitted rather well by a curve (not the one shown) with the functional form of a constant divided by λs, like the C2 term in the Mooney-Rivlin equation.

The Machine of State in Germany

2009 ◽  
Vol 5 (1) ◽  
pp. 71-93
Author(s):  
Ere Pertti Nokkala
Keyword(s):  
State Machine ◽  
The State ◽  
Complex State ◽  
Final Cause ◽  
Ideal State ◽  
Form Of Government ◽  
The One ◽  
The Ideal

The aim of this article is to explore the different uses of the state-machine metaphor in Germany during the 1750s and 1760s. It focuses on the debate around the ideal state and especially on the views of one central writer, Johann Heinrich Gottlob von Justi (1717-1771). It has been argued that in this debate the functionality of the state was measured according to the efficiency and simplicity of the machine and that the best form of state was that which provided the fastest and most precise implementation of the final cause (happiness) and encountered the fewest obstacles on its way. At the time, unlimited monarchy arose as the form of government that best fitted this description, with Fredrick II and Justi being usually referred to as the ideologues of this mechanical authoritarian order, often described as “enlightened absolutism.” However, the author argues that Justi's position in this debate must be reconsidered since his writings show that he never denied the possibility of constructing a complex state-machine based on the separation and balance of powers. In fact, he was an admirer of England's mixed government as described by Montesquieu. Ironically, then, the author who most contributed to the dissemination of the state-machine metaphor in Germany was also the one whose usage of it was most exceptional.

scholarly journals Influence of yeasts of the genus Saccharomyces and not Saccharomyces in elaboration of white wines

2019 ◽  
Vol 12 ◽  
pp. 02014
Author(s):  
L. Quincozes ◽  
P. Santos ◽  
L. Vieira ◽  
M. Gabbardo ◽  
D.P. Eckhardt ◽  
...  
Keyword(s):  
Alcoholic Fermentation ◽  
Rio Grande ◽  
White Wine ◽  
The State ◽  
Rio Grande Do Sul ◽  
White Wines ◽  
Volatile Acidity ◽  
The One ◽  
Different Strains ◽  
The Ideal

Traditionally the Serra Gaúcha region, in the state of Rio Grande do Sul, is known as a barn productor of excellent quality wines. The aromatic complexity of wine in general, and white wine in particular, is what is essential to satisfy an increasingly demanding consumer. Among the most used techniques to achieve this purpose is the addition of yeasts of different genres, thus providing a range of aromatic characteristics that are accentuated in it. In this sense, the objective of this work was to evaluate the use of different strains of yeasts in white wines of Riesling Italic variety, made from grapes grown in the Serra Gaúcha region, in the state of Rio Grande do Sul. Based on the results, it was possible to observe that there were no significant differences between the treatments in relation to the variables pH, total acidity and alcoholic degree. However, with respect to the fermentation yield, T3 was the treatment that obtained the best performance, reaching the ideal density (below 1000 g.cm3) in the course of 6 to 7 days, followed by treatments T1 (Saccharomyces cerevisae) and T5 (Levulia pulcherrima) (7 to 8 days), with treatments T2 (Saccharomyces cerevisaecerevisae) and T4 (Torulaspora delbrueckii), which had the lowest performance (9 to 10 days). The T4 treatment was also the one that presented a higher amount of residual sugars, which proves the less activity of this yeast in more alcoholic means. All the yeasts used have a low production of volatile acidity, but the lowest concentration was Saccharomyces cerevisae cerevisae, used in treatment T2 (0.1 gL−1), and the other treatments presented higher concentrations (0, 4 to 0.5 gL−1), although it is still within the parameters considered ideal for obtaining quality white wines. T2 was also the treatment with lower concentrations of glycerol (5.1 g.L−1). This compound is mainly formed by glyceropyruvic fermentation through the metabolism of yeasts at the beginning of alcoholic fermentation, usually being produced by the first 50 grams of fermented sugars, which may indicate a greater activity of this yeast in this fermentation period. In general, we can say that all the yeasts used have the potential to produce quality white wines, since they had good fermentation yields, satisfactory production of alcohol and glycerol, and low production of volatile acidity.

Arrangement Of Monomeric Units In Fibrin

1979 ◽  
Author(s):  
Jan Hermans
Keyword(s):  
Fiber Axis ◽  
High Symmetry ◽  
Linear Polymers ◽  
Fiber Volume ◽  
High Fiber ◽  
Rotation Axes ◽  
Small Set ◽  
Helical Turn ◽  
The One ◽  
Kinetics Of

Measurements of light scattering have given much information about formation and properties of fibrin. These studies have determined mass-length ratio of linear polymers (protofibrils) and of fibers, kinetics of polymerization and of lateral association and volume-mass ratio of thick fibers. This ratio is 5 to 1. On the one hand, this high value suggests that the fiber contains channels that allow the diffusion of enzymes such as Factor XHIa and plasmin; on the other hand, the high value appears paradoxical for a stiff fiber made up of elongated units (fibrin monomers) arranged in parallel. Such a high fiber volume is a property of only a small set out of many high-symmetry models of fibrin, which may be constructed from overlapping three-domain monomers which are arranged into strands, are aligned nearly parallel to the fiber axis and make adequate longitudinal and lateral contacts. These models contain helical protofibrils related to each other by rotation axes parallel to the fiber axis. The protofibrils may contain 2, 3 or 4 monomers per helical turn and there are four possible symmetries. A large specific volume is achieved if the ends of each monomer are slightly displaced from the protofibril axis, either by a shift or by a tilt of the monomer. The fiber containing tilted monomers is more highly interconnected; the two ends of a tilted monomer form lateral contacts with different adjacent protofibrils, whereas the two ends of a non-tilted monomer contact the same adjacent protofibril(s).

Transiting into Singaporean identity: Immigration and naturalisation policy

2015 ◽  
Vol 13 (1) ◽  
pp. 33-48 ◽  
Author(s):  
Mathews Mathew ◽  
Debbie Soon
Keyword(s):  
Manpower Planning ◽  
The State ◽  
Comparative Perspective ◽  
Policy Discourse ◽  
Optimal Composition ◽  
Skilled Labour ◽  
Planning Policy ◽  
The Government ◽  
The Ideal

Debates in Singapore about immigration and naturalisation policy have escalated substantially since 2008 when the government allowed an unprecedentedly large number of immigrants into the country. This essay will discuss immigration and naturalisation policy in Singapore and the tensions that have been evoked, and how these policies are a key tool in regulating the optimal composition and size of the population for the state’s imperatives. It will demonstrate that although the state has, as part of its broader economic and manpower planning policy to import labour for economic objectives, it seeks to retain only skilled labour with an exclusive form of citizenship.  Even as the Singapore state has made its form of citizenship even more exclusive by reducing the benefits that non-citizens receive, its programmes for naturalising those who make the cut to become citizens which include the recently created Singapore Citizenship Journey (SCJ) is by no means burdensome from a comparative perspective. This paper examines policy discourse and the key symbols and narratives provided at naturalisation events and demonstrates how these are used to evoke the sense of the ideal citizen among new Singaporeans. 

When the State Speaks, What Should It Say?

2012 ◽  
Author(s):  
Corey Brettschneider
Keyword(s):  
Freedom Of Expression ◽  
The State ◽  
Hate Groups ◽  
New Approach ◽  
State Action ◽  
Democratic State ◽  
Theory Of Value ◽  
The Right ◽  
Equal Citizenship ◽  
The Ideal

How should a liberal democracy respond to hate groups and others that oppose the ideal of free and equal citizenship? The democratic state faces the hard choice of either protecting the rights of hate groups and allowing their views to spread, or banning their views and violating citizens' rights to freedoms of expression, association, and religion. Avoiding the familiar yet problematic responses to these issues, this book proposes a new approach called value democracy. The theory of value democracy argues that the state should protect the right to express illiberal beliefs, but the state should also engage in democratic persuasion when it speaks through its various expressive capacities: publicly criticizing, and giving reasons to reject, hate-based or other discriminatory viewpoints. Distinguishing between two kinds of state action—expressive and coercive—the book contends that public criticism of viewpoints advocating discrimination based on race, gender, or sexual orientation should be pursued through the state's expressive capacities as speaker, educator, and spender. When the state uses its expressive capacities to promote the values of free and equal citizenship, it engages in democratic persuasion. By using democratic persuasion, the state can both respect rights and counter hateful or discriminatory viewpoints. The book extends this analysis from freedom of expression to the freedoms of religion and association, and shows that value democracy can uphold the protection of these freedoms while promoting equality for all citizens.

The Munich conference of Minister-Presidents of German lands in 1947

2020 ◽  
Vol 2020 (10-2) ◽  
pp. 86-98
Author(s):  
Ivan Popov
Keyword(s):  
The State ◽  
State Governments ◽  
The West ◽  
Constitutional Development ◽  
The Moment ◽  
The One

The paper deals with the organization and decisions of the conference of the Minister-Presidents of German lands in Munich on June 6-7, 1947, which became the one and only meeting of the heads of the state governments of the western and eastern occupation zones before the division of Germany. The conference was the first experience of national positioning of the regional elite and clearly demonstrated that by the middle of 1947, not only between the allies, but also among German politicians, the incompatibility of perspectives of further constitutional development was existent and all the basic conditions for the division of Germany became ripe. Munich was the last significant demonstration of this disunity and the moment of the final turn towards the three-zone orientation of the West German elite.

Failure Analysis Due to Slightly Unetched Hard Mask Using Nano Probe

2013 ◽  
Author(s):  
Jong Hak Lee ◽  
Jong Eun Kim ◽  
Chang Su Park ◽  
Nam Il Kim ◽  
Jang Won Moon ◽  
...  
Keyword(s):  
Leakage Current ◽  
Circuit Simulation ◽  
The State ◽  
Physical Analysis ◽  
Cross Sectional ◽  
Hard Mask ◽  
Current Flows ◽  
Voltage Contrast ◽  
The One ◽  
Zero Voltage

Abstract In this work, a slightly unetched gate hard mask failure was analyzed by nano probing. Although unetched hard mask failures are commonly detected from the cross sectional view with FIB or FIB-TEM and planar view with the voltage contrast, in this case of the very slightly unetched hard mask, it was difficult to find the defects within the failed area by physical analysis methods. FIB is useful due to its function of milling and checking from the one region to another region within the suspected area, but the defect, located under contact was very tiny. So, it could not be detected in the tilted-view of the FIB. However, the state of the failure could be understood from the electrical analysis using a nano probe due to its ability to probe contact nodes across the fail area. Among the transistors in the fail area, one transistor’s characteristics showed higher leakage current and lower ON current than expected. After physical analysis, slightly remained hard mask was detected by TEM. Chemical processing was followed to determine the gate electrode (WSi2) connection to tungsten contact. It was also proven that when gate is floated, more leakage current flows compared to the state that the zero voltage is applied to the gate. This was not verified by circuit simulation due to the floating nodes.

De la gestión local a la gobernanza global: actores e interacciones multiniveles en la gestión del agua en la ciudad de México

2011 ◽  
Vol 1 (3) ◽  
pp. 34-66
Author(s):  
Joyce Valdovinos
Keyword(s):  
Private Sector ◽  
Water Governance ◽  
The State ◽  
Public Authorities ◽  
Service Contracts ◽  
Governance Model ◽  
Role Of The State ◽  
The One

The provision of water services has traditionally been considered a responsibility of the state. During the late 1980s, the private sector emerged as a key actor in the provision of public services. Mexico City was no exception to this trend and public authorities awarded service contracts to four private consortia in 1993. Through consideration of this case study, two main questions arise: First, why do public authorities establish partnerships with the private sector? Second, what are the implications of these partnerships for water governance? This article focuses, on the one hand, on the conceptual debate of water as a public and/or private good, while identifying new trends and strategies carried out by private operators. On the other hand, it analyzes the role of the state and its relationships with other actors through a governance model characterized by partnerships and multilevel networks.Spanish La provisión del servicio del agua ha sido tradicionalmente considerada como una responsabilidad del Estado. A finales de la década de 1980, el sector privado emerge como un actor clave en el suministro de servicios públicos. La ciudad de México no escapa a esta tendencia y en 1993 las autoridades públicas firman contratos de servicios con cuatro consorcios privados. A través de este estudio de caso, dos preguntas son planteadas: ¿Por qué las autoridades públicas establecen partenariados con el sector privado? ¿Cuáles son las implicaciones de dichos partenariados en la gobernanza del agua? Este artículo aborda por una parte, el debate conceptual del agua como bien público y/o privado, identificando nuevas tendencias y estrategias de los operadores privados. Por otra parte, se analizan el rol y las relaciones del Estado con otros actores a través de un modelo de gobernanza, definido en términos de partenariados y redes multi-niveles.French Les services de l'eau ont été traditionnellement considérés comme une responsabilité de l'État. À la fin des années 1980, le secteur privé est apparu comme un acteur clé dans la fourniture de certains services publics. La ville de Mexico n'a pas échappé à cette tendance et en 1993, les autorités publiques ont signé des contrats de services avec quatre consortiums privés. À travers cette étude de cas, nous nous interrogerons sur deux aspects : pourquoi les autorités publiques établissentelles des partenariats avec le secteur privé ? Quelles sont les implications de ces partenariats sur la gouvernance de l'eau ? Cet article s'intéresse, d'une part, au débat conceptuel sur l'eau en tant que bien public et/ou privé, en identifiant les tendances nouvelles et les stratégies menées par les opérateurs privés. D'autre part y sont analysés le rôle de l'État et ses relations avec d'autres acteurs à travers un modèle de gouvernance, défini en termes de partenariats, et des réseaux multi-niveaux.

Fragmentation as a Challenge: Tribal and Sectrarian Identities in the Middle East

2020 ◽  
Vol 11 (1) ◽  
pp. 85-85
Author(s):  
Kleanthis Kyriakidis
Keyword(s):  
Middle East ◽  
Cultural Heritage ◽  
Significant Role ◽  
Arabian Gulf ◽  
The State ◽  
Islamic Revolution ◽  
Direct Response ◽  
Tribal Identity ◽  
Gulf States ◽  
The Ideal

In the Arabian Gulf two identities can be really considered almost as important as the national one: the tribal and the sectarian ones. Someone should expect that the reinforcement of these identities is a direct response to inequality and processes of exclusion. Furthermore, parochial tribalism is expected to arise as the protector of cultural heritage, especially in a region where the ex-pats vastly outnumber the locals. Nonetheless, both statements are far from truth. In this paper we will analyze how in the Gulf, sectarian identity came to play a significant role only after the 1979 Islamic revolution in Iran and it keeps on surviving through mainly instigations and Iranian propaganda, provocations and support. It should be noted that Sunni identity has been allegedly subjugated in other Middle East States (mainly in Syria and Iraq) but in the Gulf the sectarian challenge stems from the Shia communities, openly supported by Tehran. Strangely enough, the tribal identity does not pose that much of a challenge, since tribes are more the friend than the enemy of all Gulf States. Actually, these countries could not have survived without the loyalty and commitment of the tribes not only to the Royal families but also to the idea of the State and the ideal of the Nation – and Gulf Nations do protect their cultural heritage. Keywords: Gulf, Globalization, Fragmentation, Sectarianism, Tribalism

Bastard Feudalism and the Framing of Thirteenth-Century England

2018 ◽  
Author(s):  
Peter Coss
Keyword(s):  
Middle Ages ◽  
Thirteenth Century ◽  
Twelfth Century ◽  
The State ◽  
The Other ◽  
Great Work ◽  
Early Middle Ages ◽  
The One ◽  
The Relationship

In the introduction to his great work of 2005, Framing the Early Middle Ages, Chris Wickham urged not only the necessity of carefully framing our studies at the outset but also the importance of closely defining the words and concepts that we employ, the avoidance ‘cultural sollipsism’ wherever possible and the need to pay particular attention to continuities and discontinuities. Chris has, of course, followed these precepts on a vast scale. My aim in this chapter is a modest one. I aim to review the framing of thirteenth-century England in terms of two only of Chris’s themes: the aristocracy and the state—and even then primarily in terms of the relationship between the two. By the thirteenth century I mean a long thirteenth century stretching from the period of the Angevin reforms of the later twelfth century on the one hand to the early to mid-fourteenth on the other; the reasons for taking this span will, I hope, become clearer during the course of the chapter, but few would doubt that it has a validity.

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