scholarly journals Potential of Advanced Consolidants for the Application on Sandstone

2019 ◽  
Vol 9 (23) ◽  
pp. 5252
Author(s):  
Monika Remzova ◽  
Radek Zouzelka ◽  
Jaroslav Lukes ◽  
Jiri Rathousky
Keyword(s):  
Mechanical Tests ◽  
Point Of View ◽  
Accelerated Weathering ◽  
High Porosity ◽  
Accelerated Weathering Test ◽  
Application Potential ◽  
American Society ◽  
Cultural Heritage Objects ◽  
Drilling Resistance ◽  
The 19Th Century

Alkoxy-based consolidants are widely used for conservation of cultural heritage objects made from sandstones. Even if such consolidants were introduced into practice already in the 19th century, their performance has been enhanced by several modifications to their composition only recently. To obtain a relevant comparison of their application potential, both commercial (Remmers KSE OH and SurfaPore FX SB) and a self-developed particle-modified ethyl silicate consolidant supplemented with two phosphate-based ones, were assessed. Importantly, the potential toxicity of our novel consolidants was considered. Since the stone substrate should mimic the properties of naturally weathered stone, sandstone from the Msene quarry in Central Bohemia, characterized by a high porosity and relatively low mechanical strength, is selected. From practical point of view, the long-term durability of the consolidation effect is crucial compared to the initial level of consolidation. Regarding the determination of durability of the sandstone consolidation according to an American Society for Testing and Materials (ASTM) accelerated weathering test, we performed mechanical tests in micro- (nanoindentation) and macroscale (drilling resistance measurements). The cohesion of the consolidant xerogels in the pores were determined by sorption experiments in gas phase. The durability of our TiO2 and ZnO particle-modified consolidants is superior to that of the commercial products. The aqueous diammonium hydrogen phosphate-based consolidant, which also shows exceptional durability, reveals itself to be a promising product for not only carbonate but also sandstone materials.

scholarly journals Potential of Advanced Consolidants for the Application on Sandstone Rocks: A Comparative Study

2019 ◽  
Author(s):  
Monika Remzova ◽  
Radek Zouzelka ◽  
Jaroslav Lukes ◽  
Jiri Rathousky
Keyword(s):  
Mechanical Strength ◽  
Mechanical Performance ◽  
Accelerated Weathering ◽  
Long Term Stability ◽  
Before And After ◽  
Application Potential ◽  
Degree Of Consolidation ◽  
Drilling Resistance

To achieve efficient and durable consolidation of weathered sandstone, the selection of a suitable consolidant is essential. To reasonably assess the suitability of different formulations, it is fundamental to compare their performance as a consolidant within a substrate, which reliably models the properties of deteriorated material. As a test substrate, the sandstone from quarries in Mšené in central Bohemia was selected, for its developed porosity and relatively low mechanical strength. To obtain relevant comparison of their application potential, both commercial (Remmers KSE OH and Surfapore) and self-developed consolidants were included. To test the long-term stability of each consolidant, the stone was subjected to accelerated weathering. The characterization of texture properties was based on the physical sorption of nitrogen and krypton, mercury intrusion porosimetry and water uptake. While the mechanical properties in microscale were determined by nanoindentation, the mechanical strength in macroscale before and after consolidation was measured by drilling resistance. Both commercial exhibited good mechanical performance with reasonable durability. The performance of our developed samples was comparable or, in some cases, superior. Very interesting were the consolidants containing TiO2 and ZnO nanoparticles, the former exhibiting comparable degree of consolidation and durability as commercial ones, with additional photocatalytic function, the latter unusually high increase in the mechanical strength, even after the weathering test. The diammonium hydrogen phosphate based consolidant showed exceptional durability in the weathering test, which makes it a promising product not only for carbonate but also sandstone materials.

CAPRICCIOʼS GENRE IN MANDOLIN MUSIC AT THE END OF THE 19th – THE EARLY OF THE 20th CENTURIES (for example of the concert pieces by С. Munier)

2019 ◽  
pp. 60-71
Author(s):  
N. V. Bashmakova ◽  
K. V. Kravchenko
Keyword(s):  
19Th Century ◽  
Analytical Methods ◽  
17Th Century ◽  
Point Of View ◽  
Historical Approach ◽  
The Creation ◽  
Characteristic Features ◽  
Concert Works ◽  
In The Beginning ◽  
The 19Th Century

The purpose of this article is process of analyzing in reference to concert capriccio by C. Munier for mandolin with piano («Bizzarria», op. 201, Spanish сapriccio, op. 276) from the point of view of their genre specificity. Methodology. The research is based on the historical approach, which determines the specifics of the genre of Capriccio in the music of the late 19th and early 20th centuries and in the work of C. Munier; the computational and analytical methods used to identify the peculiarities of the formulation and the performing interpretation of the original concert pianos for mandolins with piano that, according to the genre orientation (according to the composerʼs remarks), are defined as capriccio. Scientific novelty. The creation of Florentine composer,61mandolinist-vertuoso and pedagog C. Munier, which made about 300 compositions, is exponential for represented scientific vector. Concert works by C. Munier for mandolin and piano, created in the capriccio genre, were not yet considered in the art of the outdoors, as the creativity and composer’s style of the famous mandolinist. Conclusions. Thus, appealing to capriccio by С. Munier, which created only two works, embodied in them virtually all the evolutionary stages of the development of genre. In his opus of this genre there are a vocal, inherent in capriccio of the 17th century solo presentation, virtuosity, originality, which were embodied in the works of 17th – 18th centuries and the national color of the 19th century is clearly expressed. Thus, the Spanish capriccio is a kind of «musical encyclopedia» of national dance, which features are characteristic features of bolero, tarantella, habanera, and so forth. The originality of opus number 201 – «Bizzarria», is embodied in the parameters of shaping (expanded cadence of the soloist in the beginning) and emphasized virtuosity, which is realized in a wide register range, a variety of technical elements.

Death Shall have no Dominion: The Passing of the World of the Dead in America

1977 ◽  
Vol 8 (3) ◽  
pp. 195-203 ◽  
Author(s):  
Charles O. Jackson
Keyword(s):  
19Th Century ◽  
Living World ◽  
The World ◽  
The Dead ◽  
American Society ◽  
Social Importance ◽  
The 19Th Century

The dead have largely lost their social importance, visibility, and impact in American society. This event is essentially a phenomenon of the present century. For three centuries prior, the dead world occupied a significant and readily recognizable place in the living world. Indeed, that place was growing rapidly through much of the 19th century. Causes of the reversal in relationship between the two worlds are examined and consequences of the present radical withdrawal from the dead are suggested.

scholarly journals Geographical Change of the Japanese National Land in the 200 Years Using INŌ’s Map with GIS

2019 ◽  
Vol 1 ◽  
pp. 1-2
Author(s):  
Yuji Murayama ◽  
Yuki Iwai
Keyword(s):  
Political System ◽  
Industrial Development ◽  
Large Scale ◽  
Geographic Information ◽  
Point Of View ◽  
The Political ◽  
Spatial Transformation ◽  
Survey Line ◽  
The Difference ◽  
The 19Th Century

<p><strong>Abstract.</strong> This presentation discusses the regional changes quantitatively in the 200 years through the overlay analysis of the present map and the INŌ’s map made by Tadataka INO in 1821 (Figure 1). INO surveyed the coastline and major roads on foot. He investigated not only survey lines, but also various geographic information such as rivers, lakes, mountains, village names, castles, temples, administrative boundaries, etc. Visualizing all of the 214 sheets of the INŌ’s large-scale map with Geographic Information Systems (GIS), we can analyse the national land condition seamlessly at the end of the Edo era.</p><p>Methodological point of view, we have serious problems including the scale, projection, identification of geographic features and so on, when we compare the old map with the present. In this connection, digitalizing the INŌ’s map as the GIS data is very useful to examine the spatial transformation scientifically during the 200 years. The digital INŌ’s map was constructed by employing the geo-reference function of GIS with the triangulation method. The survey line was converted into the line feature of vector data, and the place names were converted into the point feature of raster data. The distance of the survey line was measured by GIS-based geometric operation.</p><p>We obtained the following findings. The distributions of villages, ports, and facilities in western Japan were denser than those in eastern Japan in the 19th century. This was caused not only by the difference in natural environment and landform but also by socioeconomic factors including the locations of the castle towns and industrial activities. The regional structure has been dramatically transformed by the modernization of the political system, transportation system, and industrial development in reclaimed areas (Figure 2). It is concluded that most parts of changes in regional characteristics have been attained by overcoming the natural constraints. However, the difference in the political system has also been influential to the formation of the present regional system.</p>

scholarly journals Virginia Woolf and some aspects of the Russian novel of the 19th century

2018 ◽  
Vol 19 (11) ◽  
Author(s):  
Sonja Valčić
Keyword(s):  
19Th Century ◽  
Virginia Woolf ◽  
Emily Bronte ◽  
Point Of View ◽  
Wuthering Heights ◽  
Russian Novel ◽  
The 19Th Century

Tema ovog eseja je bazirana na citatu V. Woolf »The Russian Point of View«, tj. na citatu iz njena eseja, koji otvara jedan interesantan uvid u neke tendencije ruskih i engleskih romanopisaca 19. stoljeća. Engleski novelisti, po V. Woolf, čini se, teže objektivnijem prikazivanju društva, dok su ruski veći individualisti. Da se svi engleski pisci ne mogu klasificirati kao objektivni promatrači društva u kojem žive, potvrđuje Emily Bronte sa svojim romanom Wuthering Heights. Isto tako ruski novelisti 19. stoljeća otvaraju »mogućnosti« modernih interpretacija s tematikama moralnih sukoba koje onda pisci 20. stoljeća (engleski) proširuju na određen način, ili, bolje rečeno, sagledavaju s drugih točaka gledišta i stavljaju u određene okvire. Obrađeni su naročito V. Woolf i D. H. Lawrence, te su povučene neke paralele s Tolstojem i Turgenjevim.

scholarly journals A STUDY ON THE ASPECTS OF EUROCENTRISM AND DIFFUSIONISM REPRESENTED IN FOREIGNERS’ TRAVEL RECORDS ON KOREA IN EARLY 1900s

2017 ◽  
Vol 3 ◽  
pp. 117-126
Author(s):  
Kang Sok CHO
Keyword(s):  
Motion Picture ◽  
Point Of View ◽  
Jack London ◽  
The Political ◽  
Motion Picture Film ◽  
Political Situation ◽  
The World ◽  
Close Observation ◽  
American Society ◽  
Made In

This paper deals with three different perspectives appeared in foreign visitors’ records on Korea in 1900s. Jack London was a writer who wrote novels highly critical of American society based on progressivism. However, when his progressive perspective was adopted to report the political situation of Korea in 1904, he revealed a typical perspective of orientalism. He regarded Korea and ways of living in Korea as disgusting and ‘uncivilized.’Compared with Jack London’s perspective, French poet Georges Ducrocq’s book was rather favorable. He visited Korea in 1901 and he showed affectionate attitude toward Korea and its people. However, his travel report, Pauvre et Douce Coree, can be defined as representing aesthetic orientalism. He tried to make all the ‘Korean things’ seem beautiful and nice, but it is true that this kind of view can also conceal something concrete and specific. This perspective at once beautifies Korea and also conceals the reality about Korea.E. Burton Holmes was a traveler and he often used his ‘motion-picture’ machine to record things he witnessed while travelling around worldwide countries. So, his report (travelogue) and motion picture film on Korea written and made in 1901 was based on close observation and rather objective point of view. Nonetheless, he couldn’t avoid the perspective of the colonizer’s model of the world, in other words, geographical diffusionism of western culture.

scholarly journals Critic on Auguste Comte’s Positivism in Sociology (An Islamic Sociology Perspective)

TRANSFORMATIF ◽  
2021 ◽  
Vol 4 (2) ◽  
pp. 211-221
Author(s):  
Novita Sari ◽  
Jarman Arroisi
Keyword(s):  
Descriptive Analysis ◽  
Point Of View ◽  
The Social ◽  
Auguste Comte ◽  
Three Stages ◽  
Fundamental Value ◽  
The Many ◽  
Research Types ◽  
The 19Th Century ◽  
Modern Era

The rapid science in the modern era, provides significant changes for humans, both in the fields of economics, politics, culture, environment, society, education, and even religion. The 19th century is a century of science that is growing rapidly, this can be seen from the emergence of various scientists who provide concepts, theories based on philosophy with basic ontology, epistemology, and axiology as a contribution to the development of science. One of them, the scientist known as the father of sociology, was Auguste Comte a scientist from France. Comte is famous for its philosophy of postivism because of the many references by scientists in the contemporary era. This is based on the calculation of the success of designing the social structure of modern humans with three stages of law, but one side of the theory he produced has eliminated the fundamental value in humans, namely eliminating the metaphysical basis. In a three-stage law, more concerned with physical values than metaphysical values, this will result in a society that abandons religion and even eliminates the existence of God. The thoughts produced by Comte are thoughts originating from the west, where the basic West is relativism so if viewed from an Islamic point of view this theory will produce atheists and eliminate the sanctity of religion. In Islam religion and society are inseparable because religion is a guideline that is used as a basis in people's lives based on the values of the Qur'an and Sunnah. Therefore in this paper we will study more deeply the criticisms of Aguste Comte's thinking, using qualitative research types, with descriptive analysis methods and theological philosophical approaches. 

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