scholarly journals Spontaneous emission in non-local materials

2016 ◽  
Vol 6 (6) ◽  
pp. e16273-e16273 ◽  
Author(s):  
Pavel Ginzburg ◽  
Diane J Roth ◽  
Mazhar E Nasir ◽  
Paulina Segovia ◽  
Alexey V Krasavin ◽  
...  
1994 ◽  
Vol 14 (3) ◽  
pp. 245-285
Author(s):  
Paul A. Raber

Investigations at 36Ch161, a site in the Piedmont Uplands of Chester County, Pennsylvania, have revealed a series of early Late Woodland Period camps associated with the Minguannan Complex. The use of local quartz seems to have been a primary focus of settlement at the site. Quartz, which formed an overwhelming majority of the assemblage, was used in ways that contrast strongly with that of non-local materials like jasper, a minority component of the assemblage obtained from quarries in the Hardyston Formation. The selection of raw materials suggests restrictions on access to certain materials perhaps imposed by territorial constraints. The combined evidence of artifact assemblage and cultural features indicates that 36Ch161 was inhabited seasonally by small, mobile groups of non-horticulturalists, a reconstruction consistent with that of Custer and others regarding the economy of the Minguannan Complex and related cultures of the Piedmont Uplands.


2014 ◽  
Vol 9 (11) ◽  
pp. 886-890 ◽  
Author(s):  
Chao-Yuan Jin ◽  
Robert Johne ◽  
Milo Y. Swinkels ◽  
Thang B. Hoang ◽  
Leonardo Midolo ◽  
...  

2011 ◽  
Vol 14 (1-2) ◽  
pp. 29-59 ◽  
Author(s):  
Jonathan T. Thomas

From an analysis of over 3,000 beads and pendants from seven contemporary Late Neolithic/Copper Age (3500–2500 BC) sites in the Portuguese Estremadura, two dominant patterns emerge: (1) most beads show a high degree of standardization in terms of size and shape and are made from local materials; and (2) a minority are made from non-local, rare, and visually distinctive materials (e.g.variscite, ivory), and are less standardized and more labour-intensive. The emphasis on a wide-range of materials suggests that uncommon ornaments may have functioned as ‘value added' materials with special significance, enhancing potential design combinations. Material preferences for beads, bracelets, pendants, plaques, and ground stone tools (da Veiga Ferreira 1951; Lillios 1997, 2008) appear to mirror other Western Mediterranean raw material preferences for ornaments and other polished stone objects (Goñi Quinteiro et al. 1999; Harrison and Orozco Köhler 2001; Pascual Benito 1998; Skeates 2010; Teruel Berbell 1986) suggesting that the Estremadura participated in aspects of a wider system of shared symbolic values.


2011 ◽  
Vol 23 (6) ◽  
pp. 509-525 ◽  
Author(s):  
Mauro Fabrizio ◽  
Barbara Lazzari ◽  
Roberta Nibbi
Keyword(s):  

2014 ◽  
Vol 24 (06) ◽  
pp. 1037-1090 ◽  
Author(s):  
Giovambattista Amendola ◽  
Mauro Fabrizio ◽  
John Murrough Golden

A general theory of non-local materials, with linear constitutive equations and memory effects, is developed within a thermodynamic framework. Several free energy and dissipation functionals are constructed and explored. These include an expression for the minimum free energy and a functional that is a free energy for important categories of memory kernels and is explicitly a functional of the minimal state. The functionals discussed have a similar general form to the corresponding expressions for simple materials. A number of new results are derived for them, most of which apply equally to both types of material. In particular, detailed formulae are given for these quantities in the case of sinusoidal histories.


2021 ◽  
Vol 7 (1) ◽  
pp. 631-644
Author(s):  
Pierre Allard ◽  
Caroline Hamon ◽  
Louise Gomart

Abstract This article presents the mineral resource procurement territories of Early Neolithic settlements (LBK or Rubané) in the Aisne valley. Our study focuses on data from 15 LBK sites belonging to the final LBK of central Europe; C14 dates for the sites fall between 5100 and 4900 cal BC. The bulk of pottery from these sites seems to have been produced using local raw materials that can be found over a large part of the valley; only a dozen recorded vessels were made of an exogeneous raw material. Analysis of the supply and management of sandstone and flint productions indicates the presence of three groups of villages. These distinct groups correspond to the definition of a cluster as proposed to define site organization in the Aisne valley. On the LBK sites of the Aisne valley blades, polished tools and certain personal ornaments were occasionally made of non-local materials. Some of these objects seem to indicate contacts outside the LBK settlement zones and suggest relationships with southern Neolithic groups.


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