scholarly journals Biometric variables predict stone tool functional performance more effectively than tool‐form attributes: a case study in handaxe loading capabilities

Archaeometry ◽  
2018 ◽  
Vol 61 (3) ◽  
pp. 539-555 ◽  
Author(s):  
A. J. M. Key ◽  
S. J. Lycett
Keyword(s):  
Functional Performance ◽  
Stone Tool

Postclassic Tool Production at Santa Rita Corozal

2016 ◽  
Author(s):  
Marc D. Marino ◽  
Lucas R. Martindale Johnson ◽  
Nathan J. Meissner
Keyword(s):  
Craft Production ◽  
Stone Tool ◽  
Lithic Artifacts ◽  
Exchange Network ◽  
Source Materials ◽  
Debitage Analysis

This chapter presents a case study of a previously excavated lithic sample from Santa Rita Corozal, considering stone tool production at two structures, 216 and 218. Both exhibit a higher number of Postclassic chert and chalcedony lithic artifacts than other contemporary structures excavated at the site. The authors use debitage analysis to reveal how two households crafted formal tools locally and visual sourcing analysis to better understand how these tools articulated with broader traditions of lithic craft production in a regional exchange network. In contrast to the commercial level of production exhibited at Colha, Belize, these households used a variety of source materials and produced a less standardized tool kit on a much smaller scale.

scholarly journals Raw material optimization and stone tool engineering in the Early Stone Age of Olduvai Gorge (Tanzania)

2020 ◽  
Vol 17 (162) ◽  
pp. 20190377 ◽  
Author(s):  
Alastair Key ◽  
Tomos Proffitt ◽  
Ignacio de la Torre
Keyword(s):  
Functional Performance ◽  
Material Selection ◽  
Raw Materials ◽  
Cutting Tools ◽  
Raw Material ◽  
Stone Tool ◽  
Olduvai Gorge ◽  
Stone Age ◽  
Material Optimization ◽  
Early Stone Age

For more than 1.8 million years hominins at Olduvai Gorge were faced with a choice: whether to use lavas, quartzite or chert to produce stone tools. All are available locally and all are suitable for stone tool production. Using controlled cutting tests and fracture mechanics theory we examine raw material selection decisions throughout Olduvai's Early Stone Age. We quantify the force, work and material deformation required by each stone type when cutting, before using these data to compare edge sharpness and durability. Significant differences are identified, confirming performance to depend on raw material choice. When combined with artefact data, we demonstrate that Early Stone Age hominins optimized raw material choices based on functional performance characteristics. Doing so flexibly: choosing raw materials dependent on their sharpness and durability, alongside a tool's loading potential and anticipated use-life. In this way, we demonstrate that early lithic artefacts at Olduvai Gorge were engineered to be functionally optimized cutting tools.

scholarly journals Thermal Defect Modulation and Functional Performance: A Case Study on ZnO–rGO Nanocomposites

2019 ◽  
Vol 256 (12) ◽  
pp. 1970043
Author(s):  
Anton Landström ◽  
Alexander V. Soldatov ◽  
Alberto Vomiero ◽  
Isabella Concina
Keyword(s):  
Functional Performance ◽  
Thermal Defect

Thermal Defect Modulation and Functional Performance: A Case Study on ZnO–rGO Nanocomposites

2019 ◽  
Vol 256 (12) ◽  
pp. 1900239
Author(s):  
Anton Landström ◽  
Alexander V. Soldatov ◽  
Alberto Vomiero ◽  
Isabella Concina
Keyword(s):  
Functional Performance ◽  
Thermal Defect

Functional performance of silicified microcrystalline cellulose versus microcrystalline cellulose: a case study

2009 ◽  
Vol 35 (9) ◽  
pp. 1066-1071 ◽  
Author(s):  
Ahmad Aljaberi ◽  
Ashish Chatterji ◽  
Navnit H. Shah ◽  
Harpreet K. Sandhu
Keyword(s):  
Microcrystalline Cellulose ◽  
Functional Performance

scholarly journals SURVEY, RECOVERY AND REGENERATION OF POST-MODERN ARCHITECTURE. THE BIM APPROACH IN THE CASE STUDY OF THE SPORTS HALL IN BASTIA UMBRA (ITALY)

2021 ◽  
Vol XLVI-M-1-2021 ◽  
pp. 63-70
Author(s):  
F. Bianconi ◽  
M. Filippucci ◽  
M. Meschini
Keyword(s):  
Nineteenth Century ◽  
Functional Performance ◽  
Modern Architecture ◽  
Architectural Elements ◽  
Compositional Choices ◽  
Materials Used

Abstract. This study deals with the redevelopment of buildings built in the last decades of the Nineteenth century, with a style that can be defined "post-modern". In those years, communication became an architectural theme superimposed and abstract by functional and structural needs, with "architectural elements" abstract in a hyperbolic way with respect to the function. The result of an architectural culture, interesting for the research they narrate but incongruous with functional needs, also because of the materials used, the energy and architectural requirements impose a review to combine functional performance, in nZEB projection, and structural with the need for "venustas", what is "done well", the same facet of the same architectural rationale. The need to renew these spaces must take into account the qualities of forms that, with their material decay and in the peculiar language, may not bring out the centrality of preserving and compositional choices of the work.

Cognition and functional performance in daily activities before and after pontine and extrapontine myelinolysis: A case study

Neurocase ◽  
2012 ◽  
Vol 18 (6) ◽  
pp. 496-502
Author(s):  
Sabrina Arciero ◽  
Christina Kempf ◽  
Francis Bernard ◽  
Nadia Gosselin
Keyword(s):  
Functional Performance ◽  
Daily Activities ◽  
Extrapontine Myelinolysis ◽  
Before And After
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