scholarly journals The Problem of Lighting in Underground Domes, Vaults, and Tunnel-Like Structures of Antiquity; An Application to the Sustainability of Prominent Asian Heritage (India, Korea, China)

2019 ◽  
Vol 11 (20) ◽  
pp. 5865 ◽  
Author(s):  
Francisco Salguero Andujar ◽  
Inmaculada Rodriguez-Cunill ◽  
Jose M. Cabeza-Lainez
Keyword(s):  
Radiative Transfer ◽  
21St Century ◽  
Archaeological Sites ◽  
Normal Vector ◽  
Detailed Knowledge ◽  
Historical Evolution ◽  
Sustainable Architecture ◽  
The Past ◽  
Spherical Surfaces ◽  
Pass Through

Lighting in heritage is complex because of the forms intervening in it. The historical evolution of cultures has not been analytical and therefore, the shapes involved differ greatly from the cuboids typically found in 21st century architecture. As a vector, light inevitably attaches to surface sources. In this research, we focused on 3D curved geometries. Following a different trail to radiative transfer by virtue of detailed knowledge of the spatiality of volumes, we present new expressions, previously undefined in the literature, that are derived from a combination of surfaces that we have found in many archaeological sites around Asia. In the discussion, we start from the particularities of spherical surfaces where a normal vector has to pass through the center. By means of easy calculations, we deducted innovative laws. These in turn, allowed us to formulate several new expressions for configuration factors based on the adroit use of spherical fragments. The method easily extends to organic shapes that are often contained in the sustainable architecture of the past. The method finishes with suitable algorithms to assess the reflections in such curved forms. Finally, we implemented the results in our creative software. In this way, we enhanced the sustainable paradigms for heritage structures in Asia that we present as a conclusion of the article.

The development of “modern” palaeontological laboratory methods: a century of progress

2012 ◽  
Vol 103 (3-4) ◽  
pp. 205-216 ◽  
Author(s):  
Matthew A. Brown
Keyword(s):  
Natural History ◽  
21St Century ◽  
Analytical Methods ◽  
Historical Evolution ◽  
Technical Literature ◽  
Laboratory Methods ◽  
Future Directions ◽  
Loss Of Information ◽  
The Past

ABSTRACTVertebrate fossils have been converted from natural history objects into research specimens through the act of preparation for over 200 years. All of the basic techniques applied to specimens in the 21st Century were already in use in palaeontological laboratories by the first decade of the 1900s. It behoves any worker in the field to be intimately familiar with processes for treatment of specimens, as these procedures almost always permanently alter material available for interpretation. Historic treatments also complicate attempts to re-treat or re-prepare specimens. Sometimes this results in damage to fossils and loss of information, and often in wasted resources. Most palaeontologists are unaware of the historical evolution of laboratory methods through this time; much of the documentation of this process is considered to be obscure. However, there is in fact a robust body of literature that chronicles the development of procedures for the preparation of fossils. Awareness of the past development of methods is crucial to guiding future directions in the palaeontological laboratory. Regular reporting of laboratory methods in the technical literature at a pace matching that of other analytical methods is integral to the function of palaeontology as a science.

scholarly journals Behoud in situ, of wat doen we als alles op is?

Paleo-aktueel ◽  
2021 ◽  
pp. 73-81
Author(s):  
Froukje Veenman
Keyword(s):  
The Netherlands ◽  
Protected Areas ◽  
21St Century ◽  
Ecological Footprint ◽  
Archaeological Sites ◽  
The Past ◽  
The Future ◽  
To Come ◽  
Near Future

Out of Archaeology. Even if we may still hope to decrease our ecological footprint in the years to come, our archaeological footprint has increased rapidly over the past years. We still discover, map and excavate archaeological sites and patterns, but at the same time our archaeological ‘stock’ will decrease dramatically. Maybe all that we will have left in the near future in the Netherlands will be restricted to some archaeological reserves, which will be strictly protected areas, with no possibilities for excavation. A picture of the future (2054) is outlined in this article. We have strived to reserve (preserve?) archaeological resources since 2007, but what was actually happening in the field in the first quarter of the 21st century? And what if we run out of archaeology?

An atomic-resolution microscope study of Al contracts on GaAs

1986 ◽  
Vol 44 ◽  
pp. 726-727
Author(s):  
Z. Liliental-Weber ◽  
C. Nelson ◽  
R. Ludeke ◽  
R. Gronsky ◽  
J. Washburn
Keyword(s):  
High Speed ◽  
Schottky Contacts ◽  
Detailed Knowledge ◽  
The Past ◽  
Semiconductor Interfaces ◽  
Deposited Metal ◽  
Microwave Applications ◽  
Free Interfaces ◽  
Potential Use

The properties of metal/semiconductor interfaces have received considerable attention over the past few years, and the Al/GaAs system is of special interest because of its potential use in high-speed logic integrated optics, and microwave applications. For such materials a detailed knowledge of the geometric and electronic structure of the interface is fundamental to an understanding of the electrical properties of the contact. It is well known that the properties of Schottky contacts are established within a few atomic layers of the deposited metal. Therefore surface contamination can play a significant role. A method for fabricating contamination-free interfaces is absolutely necessary for reproducible properties, and molecularbeam epitaxy (MBE) offers such advantages for in-situ metal deposition under UHV conditions

Remembering the Past in Nineteenth-Century Scotland

2014 ◽  
Author(s):  
James J. Coleman
Keyword(s):  
Nineteenth Century ◽  
National Identity ◽  
19Th Century ◽  
21St Century ◽  
Collective Memories ◽  
The Past ◽  
Prevailing View ◽  
The Way

At a time when the Union between Scotland and England is once again under the spotlight, Remembering the Past in Nineteenth-Century Scotland examines the way in which Scotland’s national heroes were once remembered as champions of both Scottish and British patriotism. Whereas 19th-century Scotland is popularly depicted as a mire of sentimental Jacobitism and kow-towing unionism, this book shows how Scotland’s national heroes were once the embodiment of a consistent, expressive and robust view of Scottish nationality. Whether celebrating the legacy of William Wallace and Robert Bruce, the reformer John Knox, the Covenanters, 19th-century Scots rooted their national heroes in a Presbyterian and unionist view of Scotland’s past. Examined through the prism of commemoration, this book uncovers collective memories of Scotland’s past entirely opposed to 21st-century assumptions of medieval proto-nationalism and Calvinist misery. Detailed studies of 19th-century commemoration of Scotland’s national heroes Uncovers an all but forgotten interpretation of these ‘great Scots’ Shines a new light on the mindset of nineteenth-century Scottish national identity as being comfortably Scottish and British Overturns the prevailing view of Victorian Scottishness as parochial, sentimental tartanry

South Asian Developmental Crisis (Review Article)

1973 ◽  
Vol 12 (2) ◽  
pp. 181-188
Author(s):  
Rafiq Ahmad
Keyword(s):  
Second World War ◽  
World War ◽  
The Past ◽  
The Great Depression ◽  
Political Independence ◽  
Integrated Theory ◽  
Pass Through ◽  
Developed World ◽  
Second World ◽  
Made In

Like nations and civilizations, sciences also pass through period of crises when established theories are overthrown by the unpredictable behaviour of events. Economics is passing through such a crisis. The challenge thrown by the Great Depression of early 1930s took a decade before Keynes re-established the supremacy of economics. But this supremacy has again been upset by the crisis of poverty in the vast under-developed world which attained political independence after the Second World War. Poverty had always existed but never before had it been of such concern to economists as during the past twenty five years or so. Economic literature dealing with this problem has piled up but so have the agonies of poverty. No plausible and well-integrated theory of economic development or under-development has emerged so far, though brilliant advances have been made in isolated directions.

A LOOK INTO THE EARTH: EVALUATING THE USE OF MAGNETIC SURVEY IN AFRICAN ARCHAEOLOGY

2004 ◽  
Vol 2 (1) ◽  
pp. 49-63 ◽  
Author(s):  
Carlos Magnavita ◽  
Norbert Schleifer
Keyword(s):  
Geophysical Methods ◽  
Field Research ◽  
Archaeological Sites ◽  
Magnetic Survey ◽  
The Past ◽  
Common Technique ◽  
Sub Saharan ◽  
Prehistoric Settlements ◽  
Present Case Study

In the last decades, geophysical methods such as magnetic survey have become a common technique for prospecting archaeological sites. At sub-Saharan archaeological sites, however, magnetic survey and correlated techniques never came into broad use and there are no signs for an immediate change of this situation. This paper examines the magnetic survey undertaken on the Nigerian site of Zilum, a settlement of the Gajiganna Culture (ca 1800-400 BC) located in the Chad Basin and dated to ca 600-400 BC. By means of the present case study, we demonstrate the significance of this particular type of investigation in yielding complementary data for understanding the character of prehistoric settlements. In conclusion, we point out that geophysical methods should play a more important role in modern archaeological field research, as they furnish a class of documentation not achievable by traditional survey and excavation methods, thus creating new perspectives for interpreting the past of African societies.

A KUHNIAN INTERPRETATION OF THE HISTORICAL EVOLUTION OF ACCOUNTING

1989 ◽  
Vol 16 (2) ◽  
pp. 1-41 ◽  
Author(s):  
Barry E. Cushing
Keyword(s):  
Historical Evolution ◽  
Scientific Revolutions ◽  
The Past ◽  
Structure Of Scientific Revolutions ◽  
Model Following ◽  
Entry Model ◽  
Scientific Disciplines ◽  
Uncertain Future ◽  
Double Entry ◽  
Dominant Paradigm

Distinct parallels exist between the historical evolution of scientific disciplines, as explained in Thomas Kuhn's The Structure of Scientific Revolutions, and the historical evolution of the accounting discipline. These parallels become apparent when accounting's dominant paradigm is interpreted to be the double-entry bookkeeping model. Following this interpretation, the extensive articulation of the double-entry model over the past four centuries may be seen to closely resemble the “normal science” of Kuhn's theory. Further parallels become apparent when Kuhn's concept of the disciplinary crises that precede scientific revolutions is compared to developments in the accounting discipline over the past 25 years. This portrayal of accounting's evolution suggests an uncertain future for the accounting discipline.

scholarly journals Criminology: Some lines of flight

2021 ◽  
Vol 54 (1) ◽  
pp. 21-33
Author(s):  
Julie Berg ◽  
Clifford Shearing
Keyword(s):  
21St Century ◽  
Energy Systems ◽  
Social Practices ◽  
Smart Phones ◽  
40Th Anniversary ◽  
The Past ◽  
Domain Of Existence ◽  
James Lovelock ◽  
The 1960S ◽  
Space Of Flows

The 40th Anniversary Edition of Taylor, Walton and Young’s New Criminology, published in 2013, opened with these words: ‘The New Criminology was written at a particular time and place, it was a product of 1968 and its aftermath; a world turned upside down’. We are at a similar moment today. Several developments have been, and are turning, our 21st century world upside down. Among the most profound has been the emergence of a new earth, that the ‘Anthropocene’ references, and ‘cyberspace’, a term first used in the 1960s, which James Lovelock has recently termed a ‘Novacene’, a world that includes both human and artificial intelligences. We live today on an earth that is proving to be very different to the Holocene earth, our home for the past 12,000 years. To appreciate the Novacene one need only think of our ‘smart’ phones. This world constitutes a novel domain of existence that Castells has conceived of as a terrain of ‘material arrangements that allow for simultaneity of social practices without territorial contiguity’ – a world of sprawling material infrastructures, that has enabled a ‘space of flows’, through which massive amounts of information travel. Like the Anthropocene, the Novacene has brought with it novel ‘harmscapes’, for example, attacks on energy systems. In this paper, we consider how criminology has responded to these harmscapes brought on by these new worlds. We identify ‘lines of flight’ that are emerging, as these challenges are being met by criminological thinkers who are developing the conceptual trajectories that are shaping 21st century criminologies.

Experiences of Knowledge Transfer on Industrial Heritage Using Games, Storytelling, and New Technologies

2021 ◽  
Vol 14 (2) ◽  
pp. 1-26
Author(s):  
Gonzalo Andrés López ◽  
David Checa Cruz
Keyword(s):  
New Technologies ◽  
Daily Life ◽  
3D Modelling ◽  
Historical Evolution ◽  
Educational Tool ◽  
Economic Activities ◽  
Industrial Heritage ◽  
Urban Economic ◽  
The Past ◽  
A Value

The industry has a relevant spatial and socioeconomic importance in most of the Spanish cities and nowadays is one of the main urban economic activities. However, in many situations, and despite recent advances in the past two decades, industrial heritage is a value that is still not sufficiently widespread in society. The factories, their activity, and their historical evolution are often disconnected and isolated from the daily life of the cities, being quite an unknown aspect for most of the citizens. This contribution presents the result of various experiences of knowledge transmission on the heritage value of industry, through the use of games and storytelling technique as an educational tool and the combination of different technologies (3D modelling, videomapping, virtual reality) as useful tools to spread the explanation of this phenomenon.

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