scholarly journals Cluster Analysis of IR Thermography Data for Differentiating Glass Types in Historical Leaded-Glass Windows

2020 ◽  
Vol 10 (12) ◽  
pp. 4255
Author(s):  
Michaël Hillen ◽  
Stijn Legrand ◽  
Yarince Dirkx ◽  
Koen Janssens ◽  
Geert Van der Snickt ◽  
...  
Keyword(s):  
Thermal Behavior ◽  
Infrared Thermography ◽  
Data Clustering ◽  
Critical Issue ◽  
Substantial Impact ◽  
Contactless Testing ◽  
Heritage Science ◽  
Visual Color ◽  
Color Differences ◽  
History Of

Infrared thermography is a fast, non-destructive and contactless testing technique which is increasingly used in heritage science. The aim of this study was to assess the ability of infrared thermography, in combination with a data clustering approach, to differentiate between the different types of historical glass that were included in a colorless leaded-glass windows during previous restoration interventions. Inspection of the thermograms and the application of two data mining techniques on the thermal data, i.e., k-means clustering and hierarchical clustering, allowed identifying different groups of window panes that show a different thermal behavior. Both clustering approaches arrive at similar groupings of the glass with a clear separation of three types. However, the lead cames that hold the glass panes appear to have a substantial impact on the thermal behavior of the surrounding glass, thus preventing classification of the smallest glass panes. For the larger panes, this was not a critical issue as the center of the glass remained unaffected. Subtle visual color differences between panes, implying a variation in coloring metal ions, was not always distinguished by IRT. Nevertheless, data clustering assisted infrared thermography shows potential as an efficient and swift method for documenting the material intervention history of leaded-glass windows during or in preparation of conservation treatments.

The importance of the pre-history of a sample on its thermal behavior. Part 2

1993 ◽  
Vol 215 ◽  
pp. 133-141 ◽  
Author(s):  
Dun Chen ◽  
Xiang Gao ◽  
David Dollimore
Keyword(s):  
Thermal Behavior ◽  
History Of

scholarly journals Corporate governance paradigms of hazardous industries: Enduring challenges of Britain’s civil nuclear industry

2021 ◽  
Vol 46 (2) ◽  
pp. 156-167
Author(s):  
B.C. Pemberton ◽  
W. Ng
Keyword(s):  
Decision Making ◽  
Corporate Governance ◽  
Stakeholder Engagement ◽  
Critical Issue ◽  
Nuclear Industry ◽  
Environmental Damage ◽  
Effective Governance ◽  
Management Processes ◽  
History Of ◽  
Core Requirements

This article discusses risk management processes in Britain’s civil nuclear industry from a corporate governance perspective. As an example of a hazardous industry that can inflict catastrophic environmental damage and fatalities, effective governance of Britain’s nuclear industry is a critical issue. Yet the industry’s history of corporate governance suggests that processes of corporate governance have regularly failed to meet core requirements of its stakeholders. A core requirement is for governance designs that recognize the interests of public owner–stakeholders. In meeting this requirement, the article offers a framework for a relationship-driven form of corporate governance that enables meaningful stakeholder engagement in decision-making.

scholarly journals International Relations of Medieval Europe in Works of D. I. Kachenovskiy (1827–1872)

2019 ◽  
Keyword(s):  
International Relations ◽  
International Law ◽  
Middle Ages ◽  
Research Work ◽  
Basic Research ◽  
Positive Influence ◽  
Substantial Impact ◽  
Feudal Society ◽  
History Of ◽  
The Middle Ages

The article dwells on reaearch and academic activity of D. I. Kachenovskiy at Kharkiv University. His contribution is shown to the study of international relations history at Middle Ages. It is emphasized that we are quite right to call D. I. Kachenovskiy one of most prominent Ukrainian experts in this field, despite his certain idealization of feudal society. Main teaching subjects of D. I. Kachenovskiy were international law and state law of European powers. The basic research work by D. I. Kachenovskiy became his doctoral thesis «On Privateers and Prize Proceedings Relative to Neutral Merchandise» (1855) which became widely known both in Russian Empire and Europe. D. I. Kachenovskiy admitted the appropriateness of privateering, characterized its essence and shared the opinion of well-known French scholar J.-M. Pardessus that charter by Aragon king Alfonso III of 1288 had been the first legislative act relating to privateering. The first period in European privateering history when “naval war was almost indistinguishable from piracy” lasted, by the scholar’s opinion, up to the end of XVI century. His «Course in International Law» was published in 1863, though unfinished, and embraced the antiquity as well as Middle Ages. The concept of international law development in the Middle Ages as proposed by D. I. Kachenovskiy included several basic elements. Those are: admission of the tremendous contribution of Christian Church, Roman Popes and German Emperors in elaboration of this law, influence of public order and national character of German tribes, as well as statement of general détente of mores and international tension in the Middle Ages under the effect of above-cited factors. The scholar emphasized positive influence of knighthood on customs of war and international relations. Medieval international law, history of privateering and trade, social-political and cultural life of Florence and effect of internal factors on its development were the main lines in research of the scientist. Works by D. I. Kachenovskiy exerted the substantial impact not only on students, but on his colleagues as well, and his scientific treatments mostly sustained time exam.

scholarly journals Contrasting prescription burning and wildfires in California Sierra Nevada national parks and adjacent national forests

2021 ◽  
Vol 30 (4) ◽  
pp. 255
Author(s):  
Jon E. Keeley ◽  
Anne Pfaff ◽  
Anthony C. Caprio
Keyword(s):  
Sierra Nevada ◽  
National Parks ◽  
National Park ◽  
National Forests ◽  
Substantial Impact ◽  
Area Burned ◽  
Natural Fires ◽  
Park Service ◽  
History Of ◽  
Lassen Volcanic National Park

History of prescription burning and wildfires in the three Sierra Nevada National Park Service (NPS) parks and adjacent US Forest Service (USFS) forests is presented. Annual prescription (Rx) burns began in 1968 in Sequoia and Kings Canyon National Parks, followed by Yosemite National Park and Lassen Volcanic National Park. During the last third of the 20th century, USFS national forests adjacent to these parks did limited Rx burns, accounting for very little area burned. However, in 2004, an aggressive annual burn program was initiated in these national forests and in the last decade, area burned by planned prescription burns, relative to area protected, was approximately comparable between these NPS and USFS lands. In 1968, the NPS prescription burning program was unique because it coupled planned Rx burns with managing many lightning-ignited fires for resource benefit. From 1968 to 2017, these natural fires managed for resource benefit averaged the same total area burned as planned Rx burns in the three national parks; thus, they have had a substantial impact on total area burned by prescription. In contrast, on USFS lands, most lightning-ignited fires have been managed for suppression, but increasing attention is being paid to managing wildfires for resource benefit.

Yiddish as an Expression of Jewish Cultural Identity in Galicia and Vienna

1999 ◽  
pp. 164-176
Author(s):  
Gabriele Kohlbauer-Fritz
Keyword(s):  
The Other ◽  
The Political ◽  
Self Awareness ◽  
Habsburg Empire ◽  
Substantial Impact ◽  
Language And Culture ◽  
Long Period ◽  
History Of ◽  
Austrian Capital ◽  
Cultural Movement

This chapter illustrates the backwardness of Yiddish in the easternmost province of the Habsburg Empire. In Galicia, Yiddish language and culture developed quite differently and at a much slower pace than in the other parts of Poland and Russia. At a time when the works of Isaac Leib Peretz, Mendele Mokher Seforim, and Sholem Aleichem were flourishing elsewhere, Yiddish culture in Galicia was still underdeveloped, emerging only fleetingly at the beginning of the twentieth century, inspired by the political and social movements that encouraged Jewish national self-awareness. No doubt one reason for this long period of dormancy was the particular historical situation that resulted from the policies of the Habsburg regime. Thus, a history of the Yiddish-language movement in Galicia and the Austrian capital, Vienna, must also be an account of its failure. The chapter shows that it was precisely in Galicia that a thriving cultural symbiosis emerged among the coexisting national groups, and this symbiosis had a substantial impact on the Yiddish cultural movement. Yet competition from the Polish and German languages ultimately ousted Yiddish almost completely.

Time travel with Professor Mayer

2019 ◽  
Vol 172 (1) ◽  
pp. 3-12
Author(s):  
Morry Schwartz
Keyword(s):  
Critical Issue ◽  
Time Travel ◽  
The Internet ◽  
The Future ◽  
History Of ◽  
The Media ◽  
Internet Revolution

Reading Henry Mayer’s book, The Media in Australia published in 1964, Morry Schwartz ponders what has changed since then. What would Professor Mayer made of the Internet revolution? Could he have predicted the spectacular demise of the afternoon newspapers? He was also an enthusiastic supporter of the new national paper, The Australian; so what would he have made of it 50 years later? What would he think of the future of the media if he were here today? In light of the history of the media since Mayer’s study, Morry Shwartz’s 2018 Mayer Lecture shares his ideas and strategies for the future of The Monthly and The Saturday Paper, along with his decision to keep publishing editions in print, which has much to do with today’s critical issue of trust in the news.

scholarly journals How Much? How Frequent? How Long? A Clinical Guide to New Therapies in Myelodysplastic Syndromes

Hematology ◽  
2010 ◽  
Vol 2010 (1) ◽  
pp. 314-321 ◽  
Author(s):  
William Blum
Keyword(s):  
Quality Of Life ◽  
Myelodysplastic Syndromes ◽  
Clinical Decision Making ◽  
Treatment Options ◽  
Clinical Decision ◽  
Clinical Results ◽  
Improve Quality ◽  
Substantial Impact ◽  
History Of

AbstractAdvances in the treatment of myelodysplastic syndromes (MDSs) over the last decade have given patients and their hematologists a multitude of treatment options. Therapeutic options now exist that reduce disease-related symptoms, improve quality of life, and alter the natural history of the disease. Three drugs are now specifically Food and Drug Administration-approved for treatment of MDS: (1) azacitidine, (2) decitabine, and (3) lenalidomide. Clinical results with each of these agents, plus results with immunosuppressive therapy, are reviewed to guide clinical decision making. Although each therapy has made a substantial impact in improving the care of patients with MDS, unfortunately MDS treatment in 2010 ultimately fails in most patients, but these therapies provide a foundation on which we can build to further improve outcomes.

Inside the global teaching machine: MOOCs, academic labour and the future of the university

2016 ◽  
Vol 9 (2) ◽  
pp. 66-88 ◽  
Author(s):  
Michael A. Peters
Keyword(s):  
Higher Education ◽  
Political Economy ◽  
Digital Media ◽  
Hierarchical Structures ◽  
Critical Issue ◽  
Research Network ◽  
Quality Of Higher Education ◽  
History Of ◽  
History Of The University ◽  
The University

This special issue focused on ‘Digital Media and Contested Visions of Education’ provides an opportunity to examine the tendency to hypothesise a rupture in the history of the university. It does so by contrasting the traditional Humboldtian ideals of the university with a neoliberal marketised version and in order to ask questions concerning evaluations of the quality of higher education within a knowledge economy. Theorising the rupture has led to a variety of different accounts most of which start from an approach in political economy and differ according to how theorists picture this change in capitalism. Roughly speaking the question of whether to see the political economy of using social media in higher education from a state perspective or a network perspective is a critical issue. A state-centric approach is predisposed towards a reading that is based on a critical realist approach of Marxist political economy (Jessop 1993). By contrast an approach that decentres the state and focuses on global networked finance capitalism ironically grows out of a military-university research network created by the U.S. government. Arguably, networks, not states, now constitute the organising global structure (Castells 2009) and while state-centric theory with hierarchical structures are still significant, relational, selforganising and flexible market networks have become the new unit of analysis for understanding the circuits of global capital (Peters 2014; Peters 2009). However, states still have a role to play in norming the networks or providing the governing framework in international law.

Dynamic Thermal Behavior of a GDI Spray Impacting on a Heated Thin Foil by Phase-Averaged Infrared Thermography

2019 ◽  
Author(s):  
Mattia Contino ◽  
Luigi Allocca ◽  
Alessandro Montanaro ◽  
Gennaro Cardone ◽  
Mirko Zaccara
Keyword(s):  
Thermal Behavior ◽  
Infrared Thermography ◽  
Thin Foil
Sign in / Sign up

Export Citation Format

Share Document