Processes of the Foaming Mixture’ Components Interaction during the Foam Glass Synthesis

2020 ◽  
Vol 992 ◽  
pp. 271-276
Author(s):  
B.M. Goltsman ◽  
L.A. Yatsenko ◽  
Elena A. Yatsenko
Keyword(s):  
Porous Structure ◽  
Internal Structure ◽  
Foam Glass ◽  
Combustion Process ◽  
Structure And Properties ◽  
Stabilizing Agent

The prospects for the use of foam glass in construction were described. The modern compositions of foaming mixtures for foam glass synthesis were considered. Compositions for studying the influence of the foaming mixture components on the formation of foam glass porous structure were developed, their internal structure and properties were studied. The role of each component of the mixture on its foaming was revealed. Glycerol is a pore-forming agent, which decomposes and produces foaming gases. Waterglass is a stabilizing agent reducing glycerol combustion process. Recommendations on the application of the described patterns in the foam glass synthesis were given.

Study of the Water-Glass Role in the Foam Glass Synthesis Using Glycerol Foaming Agent

2021 ◽  
Vol 316 ◽  
pp. 153-158
Author(s):  
Boris M. Goltsman ◽  
Lyubov A. Yatsenko ◽  
Natalia S. Goltsman
Keyword(s):  
Porous Structure ◽  
Structure Formation ◽  
Water Glass ◽  
Glass Batch ◽  
Foam Glass ◽  
Foaming Agent ◽  
Additive Type ◽  
Highly Porous ◽  
Material Porosity

The article discusses the peculiarities of the "water-glass – glycerol" foaming mixture components interaction during foam glass synthesis. The important role of the foaming additive type in the foam glass porous structure formation was described, the main foaming substances were listed. The obtaining and researching technology of the samples was described, the compositions of the initial batches using the "water-glass – glycerol" mixture were developed. It was shown that a material with a highly porous structure and density below 500 kg/m3 can be obtained only with the combined introduction of water-glass and glycerol. In this case, mixtures with a predominance of water-glass in the foaming mixture possess optimal properties. Using DSC, it was shown that the addition of water-glass to the mixture completely eliminates the evaporation of glycerol at lower temperatures and intensifies its combustion at higher temperatures. Thus, the addition of water-glass to the glycerol-based foam glass batch allows glycerol to be saved up to higher temperatures that increases the resulting material porosity.

Control of the Structure and Properties of Acoustic Materials on the Basis of Foam Glass Composites

2018 ◽  
Vol 760 (6) ◽  
pp. 41-44 ◽  
Author(s):  
V.S. LESOVIK ◽  
◽  
S.V. ALEKSEEV ◽  
I.V. BESSONOV ◽  
S.S. VAISERA ◽  
...  
Keyword(s):  
Foam Glass ◽  
Structure And Properties ◽  
Glass Composites

Zeit und gutes Leben

2020 ◽  
Vol 74 (4) ◽  
pp. 493-513
Author(s):  
Holmer Steinfath
Keyword(s):  
Internal Structure ◽  
Good Life ◽  
External Factor ◽  
Life Time ◽  
The Good Life ◽  
Adequate Understanding ◽  
Gutes Leben

Time is a neglected subject in recent, especially analytically minded reflections on the good life. The article highlights the fundamental role of time and temporality for an adequate understanding of the good life. Time functions both as an external factor with which we have to reckon in our practical deliberations and as an internal structure of living our lives. It is argued that striving for a good life also means striving for being in harmony with the time of one's life. The exploration of this idea allows to link analytical with phenomenological approaches to time and good life.

Arena Expansion and the Transnationalization of Business Advocacy

2018 ◽  
Author(s):  
Abraham L. Newman ◽  
Elliot Posner
Keyword(s):  
Internal Structure ◽  
International Finance ◽  
Financial Regulation ◽  
Banking Regulation ◽  
Great Powers ◽  
Soft Law ◽  
Financial Industry ◽  
Individual Industry ◽  
Industry Associations

Chapter 5 shifts the focus from soft law’s effects on great powers to its impact on influential business groups. It argues that by expanding arenas of contestation to the transnational level, soft law transforms business representation as well as individual industry associations. The chapter’s empirical focus is on banking regulation from the 1980s to the 2000s. Much of the literature on transnational banking standards centers on the role of industry associations and, in particular, on the Institute of International Finance. In this chapter, the authors explain the rise of direct industry participation in and influence over Basel-based standard setting. They show that the orientation and priorities of the IIF as well as its membership and internal structure were deeply conditioned by 1980s international soft law. The IIF’s transformation subsequently set off a series of changes to the ecology of financial industry associations and the politics of financial regulation.

scholarly journals A Unified Mathematical Formalism for First to Third Order Dielectric Response of Matter: Application to Surface-Specific Two-Colour Vibrational Optical Spectroscopy

Symmetry ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 153 ◽  
Author(s):  
Christophe Humbert ◽  
Thomas Noblet
Keyword(s):  
Dielectric Response ◽  
Structure And Properties ◽  
Linear Optics ◽  
Third Order ◽  
Mathematical Functions ◽  
Sum Frequency ◽  
Non Linear Optics ◽  
Non Linear ◽  
Light Excitation

To take advantage of the singular properties of matter, as well as to characterize it, we need to interact with it. The role of optical spectroscopies is to enable us to demonstrate the existence of physical objects by observing their response to light excitation. The ability of spectroscopy to reveal the structure and properties of matter then relies on mathematical functions called optical (or dielectric) response functions. Technically, these are tensor Green’s functions, and not scalar functions. The complexity of this tensor formalism sometimes leads to confusion within some articles and books. Here, we do clarify this formalism by introducing the physical foundations of linear and non-linear spectroscopies as simple and rigorous as possible. We dwell on both the mathematical and experimental aspects, examining extinction, infrared, Raman and sum-frequency generation spectroscopies. In this review, we thus give a personal presentation with the aim of offering the reader a coherent vision of linear and non-linear optics, and to remove the ambiguities that we have encountered in reference books and articles.

Role of vanadium oxide on the lithium silicate glass structure and properties

2021 ◽  
Author(s):  
Anuraag Gaddam ◽  
Amarnath R. Allu ◽  
Hugo R. Fernandes ◽  
George E. Stan ◽  
Catalin C. Negrila ◽  
...  
Keyword(s):  
Vanadium Oxide ◽  
Silicate Glass ◽  
Glass Structure ◽  
Lithium Silicate ◽  
Structure And Properties ◽  
Lithium Silicate Glass

Anomalous narrowing of the shape of the structural process in derivatives of trehalose at high pressure. The role of the internal structure

2021 ◽  
pp. 116321
Author(s):  
Dawid Heczko ◽  
Joanna Grelska ◽  
Karolina Jurkiewicz ◽  
Patrycja Spychalska ◽  
Anna Kasprzycka ◽  
...  
Keyword(s):  
High Pressure ◽  
Internal Structure ◽  
Structural Process ◽  
Derivatives Of

Fabrication of poly (1, 8-octanediol-co-Pluronic F127 citrate)/chitin nanofibril/bioactive glass (POFC/ChiNF/BG) porous scaffold via directional-freeze-casting

2020 ◽  
Vol 40 (7) ◽  
pp. 591-599
Author(s):  
Yaling Tian ◽  
Kai Liang ◽  
Yali Ji
Keyword(s):  
Bioactive Glass ◽  
Porous Structure ◽  
Pore Structure ◽  
Porous Scaffold ◽  
Pluronic F127 ◽  
Porous Scaffolds ◽  
Freeze Casting ◽  
Promising Candidate ◽  
Complete Replacement

AbstractThe citrate-based thermoset elastomer is a promising candidate for bone scaffold material, but the harsh curing condition made it difficult to fabricate porous structure. Recently, poly (1, 8-octanediol-co-Pluronic F127 citrate) (POFC) porous scaffold was creatively fabricated by chitin nanofibrils (ChiNFs) supported emulsion-freeze-casting. Thanks to the supporting role of ChiNFs, the lamellar pore structure formed by directional freeze-drying was maintained during the subsequent thermocuring. Herein, bioactive glass (BG) was introduced into the POFC porous scaffolds to improve bioactivity. It was found the complete replacement of ChiNF particles with BG particles could not form a stable porous structure; however, existing at least 15 wt% ChiNF could ensure the formation of lamellar pore, and the interlamellar distance increased with BG ratios. Thus, the BG granules did not contribute to the formation of pore structure like ChiNFs, however, they surely endowed the scaffolds with enhanced mechanical properties, improved osteogenesis bioactivity, better cytocompatibility as well as quick degradation rate. Reasonably adjusting BG ratios could balance the requirements of porous structure and bioactivity.

scholarly journals Anti-migrant Islamophobia in Europe. Social roots, mechanisms and actors

2018 ◽  
Vol 26 (53) ◽  
pp. 25-40
Author(s):  
Fabio Perocco
Keyword(s):  
Mass Media ◽  
Internal Structure ◽  
Social Inequalities ◽  
Social Origins ◽  
Far Right ◽  
Social Actors ◽  
Muslim Immigrants ◽  
The Social ◽  
The Mass Media

Abstract During the last two decades of rising anti-migrant racism in Europe, Islamophobia has proven to be the highest, most acute, and widely spread form of racism. The article shows how anti-migrant Islamophobia is a structural phenomenon in European societies and how its internal structure has specific social roots and mechanisms of functioning. Such an articulate and interdependent set of key themes, policies, practices, discourses, and social actors it is intended to inferiorise and marginalise Muslim immigrants while legitimising and reproducing social inequalities affecting the majority of them. The article examines the social origins of anti-migrant Islamophobia and the modes and mechanisms through which it naturalises inequalities; it focuses on the main social actors involved in its production, specifically on the role of some collective subjects as anti-Muslim organizations and movements, far-right parties, best-selling authors, and the mass-media.

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