Exploring relationships between touch perception and surface physical properties

This paper reports a study of materials for confectionery packaging. The aim was to explore the touch perceptions of textures and identify their relationships with the surfaces' physical properties. Thirty-seven tactile textures were tested including 22 cardboards, nine flexible materials and six laminate boards. Semantic differential questionnaires were administered to assess responses to touching the textures against six word pairs: warm-cold, slippery-sticky, smooth,-rough, hard-soft, bumpy-flat, and wet-dry. Four physical measurements were conducted to characterize the surfaces' roughness, compliance, friction, and the rate of cooling of an artificial finger when touching the surface. Correlation and regression analyses were carried out to identify the relationships between the people's responses and the physical measurements. Results show that touch perception is often associated with more than one physical property, and the strength and form of the combined contribution can be represented by a regression model. © 2009 Chen, Shao, Barnes, Childs, & Henson

AN ANALYSIS OF TEXTILE-IMPRESSED CERAMICS FROM SLACK FARM (15UN28), KENTUCKY

This thesis represents a study of textile-impressed ceramics from Slack Farm, a Late Mississippian Caborn-Welborn phase site in Union County, Kentucky. The goal of this study was to use the textile impressions to provide additional insight into Caborn-Welborn social organization. The Caborn-Welborn phase represents the reconfiguration of communities in the Lower Ohio River Valley after the collapse of the Angel chiefdom and other nearby Mississippian polities. Results indicate that there was an increase in textile structural variation in the fabric used for the impressions at Slack Farm and other Caborn-Welborn sites from earlier Mississippian assemblages. Increased textile structural variation may be associated with the reconfiguring of the Caborn-Welborn social organization during this phase. Textile types associated with Oneota tribal groups were also identified at Slack Farm and suggest Oneota women were in residence at the site. Textile patterns assumed to be associated with an elite status were not identified in this study. Overall, the textile-impressed assemblage reflects the response of weavers to changes in the Caborn-Welborn social organization

Enlightened Romanticism: Mary Gartside’s colour theory in the age of Moses Harris, Goethe and George Field

The aim of this paper is to evaluate the work of Mary Gartside, a British female colour theorist, active in London between 1781 and 1808. She published three books between 1805 and 1808. In chronological and intellectual terms Gartside can cautiously be regarded an exemplary link between Moses Harris, who published a short but important theory of colour in the second half of the eighteenth century, and J.W. von Goethe’s highly influential Zur Farbenlehre, published in Germany in 1810. Gartside’s colour theory was published privately under the disguise of a traditional water colouring manual, illustrated with stunning abstract colour blots (see example above). Until well into the twentieth century, she remained the only woman known to have published a theory of colour. In contrast to Goethe and other colour theorists in the late 18th and early 19th century Gartside was less inclined to follow the anti-Newtonian attitudes of the Romantic movement

ICS Materials. Towards a re-Interpretation of material qualities through interactive, connected, and smart materials.

The domain of materials for design is changing under the influence of an increased technological advancement, miniaturization and democratization. Materials are becoming connected, augmented, computational, interactive, active, responsive, and dynamic. These are ICS Materials, an acronym that stands for Interactive, Connected and Smart. While labs around the world are experimenting with these new materials, there is the need to reflect on their potentials and impact on design. This paper is a first step in this direction: to interpret and describe the qualities of ICS materials, considering their experiential pattern, their expressive sensorial dimension, and their aesthetic of interaction. Through case studies, we analyse and classify these emerging ICS Materials and identified common characteristics, and challenges, e.g. the ability to change over time or their programmability by the designers and users. On that basis, we argue there is the need to reframe and redesign existing models to describe ICS materials, making their qualities emerge

Hands on Design : Comparing the use of sketching and gesturing in collaborative designing

This study explored the remaining potential of gestures as creative tools for collaborative designing. We compared novice designers' use of sketching against gesturing in early ideation and rough visualisation. To preserve the kinesic character of gestures, we developed a detailed video analysis method, which revealed that the majority of sketching and gesturing was complementary to speech. Sketching was important for defining complicated structures, while gesturing was frequently used for all aspects of designing. Moreover, we identified that the level of collaboration – the level and immediacy of sharing one's ideas for others – is an important factor. As an underrepresented phenomenon in the design literature, the meaning of collaboration unearthed here leads to unmistakable conclusions regarding the nature of gesturing, to the process of learning design, and to the use of design tools. Most notably, gesturing offers a complementary creative dimension - kinaesthetic thinking - which invites us to communicate and share instantaneously.Peer reviewe

Paleomimetics: A Conceptual Framework for a Biomimetic Design Inspired by Fossils and Evolutionary Processes

In biomimetic design, functional systems, principles, and processes observed in nature are used for the development of innovative technical systems. The research on functional features is often carried out without giving importance to the generative mechanism behind them: evolution. To deeply understand and evaluate the meaning of functional morphologies, integrative structures, and processes, it is imperative to not only describe, analyse, and test their behaviour, but also to understand the evolutionary history, constraints, and interactions that led to these features. The discipline of palaeontology and its approach can considerably improve the efficiency of biomimetic transfer by analogy of function; additionally, this discipline, as well as biology, can contribute to the development of new shapes, textures, structures, and functional models for productive and generative processes useful in the improvement of designs. Based on the available literature, the present review aims to exhibit the potential contribution that palaeontology can offer to biomimetic processes, integrating specific methodologies and knowledge in a typical biomimetic design approach, as well as laying the foundation for a biomimetic design inspired by extinct species and evolutionary processes: Paleomimetics. A state of the art, definition, method, and tools are provided, and fossil entities are presented as potential role models for technical transfer solutions

Paleomimetics: A Conceptual Framework for a Biomimetic Design Inspired by Fossils and Evolutionary Processes

In biomimetic design, functional systems, principles, and processes observed in nature are used for the development of innovative technical systems. The research on functional features is often carried out without giving importance to the generative mechanism behind them: evolution. To deeply understand and evaluate the meaning of functional morphologies, integrative structures, and processes, it is imperative to not only describe, analyse, and test their behaviour, but also to understand the evolutionary history, constraints, and interactions that led to these features. The discipline of palaeontology and its approach can considerably improve the efficiency of biomimetic transfer by analogy of function; additionally, this discipline, as well as biology, can contribute to the development of new shapes, textures, structures, and functional models for productive and generative processes useful in the improvement of designs. Based on the available literature, the present review aims to exhibit the potential contribution that palaeontology can offer to biomimetic processes, integrating specific methodologies and knowledge in a typical biomimetic design approach, as well as laying the foundation for a biomimetic design inspired by extinct species and evolutionary processes: Paleomimetics. A state of the art, definition, method, and tools are provided, and fossil entities are presented as potential role models for technical transfer solutions

From entities to interaction. Replacing pots and people with networks of transmission

Source at https://www.sgr.fi/en/items/show/675.The understanding of the relationship between language, ethnic groups, and material culture in prehistory is still very limited, even within highly competent academic communities. To researchers without archaeological training it may be easy to make a direct association between archaeological cultures, distribution of signifi cant artefact types, and ethnic groups, especially as such explicit links are occasionally made also by archaeologists (e.g. Carpelan 2006). While there is undoubtedly some association between material culture and ethnicity (Damm 2010), and by inference perhaps also language, this is not straightforward, and is in many respects still poorly understood

Research into the Origin and Spread of Wool Production between the Near East and Central Europe

The objective of the research group Textile Revolution is to contribute to research on the still largely unclear introduction of wool production in later Neolithic and Chalcolithic societies from Western Asia to Central Europe. Since direct evidence of wool depends on rare conditions of preservation, a multi-proxy approach based on different kinds of indirect evidence was chosen. The previous history of research on early wool production as well as the domestication history of sheep are reviewed briefly. Anthropogenic impacts on the landscape, possibly related to intensified grazing, are one kind of indirect evidence that we take into account. For the later part of the presumably long-lasting development of wool production, written sources are available, the earliest of which date to the Late Uruk and Jemdet Nasr periods (end of the 4th to beginning of the 3rd millennium BCE) in Mesopotamia. Indirect archaeological evidence consists of the tools used in textile production, among which spindle whorls and loom weights occur most frequently. Since they are not a priori specific to the type of fibre, be it linen or wool, statistical evaluations of metric data are necessary. Zooarchaeological analysis of large samples of animal bones from a wide spectrum of sites and time slices is a further crucial element of our multi-proxy approach. Both the demographic composition of herds and metric data indicating changes in animal size can yield indirect evidence for incipient or increasing importance of wool production. This article offers an overview of these different sources and methods, specific to the disciplines involved, and presents some preliminary results

Evaluating the Validity and Reliability of Textile and Paper Fracture Characteristics in Forensic Comparative Analysis

In a comparative forensic analysis, an examiner can report that a physical fit exists between two torn or separated items when they realign in a manner unlikely to be replicated. Due to the common belief that it is unlikely that two unrelated fractured objects would match with distinctive characteristics, a physical fit represents the highest degree of association between two items. Nonetheless, despite the probative value that this evidence could have to a trier of fact, few studies have demonstrated such assumptions\u27 scientific validity and reliability. Moreover, there is a lack of consensus-based standard protocols for physical fit comparisons, making it difficult to demonstrate the basis for the features that constitute a “fit.” Since these analyses rely entirely on human judgment, they are highly subjective, which could be problematic in the absence of harmonized examination and interpretation criteria protocols. As a result, organizations like the National Institute of Justice and NIST-OSAC have identified the need for developing standardized methods and assessing potential error sources in this field. This research aims to address these gaps as applied to physical fits of textiles and paper. Here, standard criteria and prominent features for each material are defined to conduct physical fit examinations in a more reproducible manner. Additionally, a quantitative metric is used to quantify what constitutes a physical fit when conducting comparative analyses of textiles and paper, further increasing the validity and reliability of this methodology and providing a manner of assessing the weight of this evidence when presented in the courtroom. The first aim of this research involved the development of an objective and systematic method of quantifying the similarity between fractured textile samples. This was done by identifying relevant macroscopic and microscopic characteristics in the comparative analysis of a fractured textile dataset. Additionally, factors that affect the suitability of certain types of textiles for physical fit analysis were evaluated. Finally, the systematic score metric was implemented to quantify and document the quality of a physical fit and estimate error rates. The second objective of this study consisted of establishing the scientific foundations of individuality concerning the orientation of microfibers in fractured paper edges. In comparative analysis of paper, it is assumed that the microfibers deposited across the surface of paper are randomly oriented, a key feature for addressing the individuality of paper physical fits. However, this hypothesis has not been tested. This research evaluated the rarity and occurrence of microfiber alignments on fractured documents. It also quantified the comparative features of scissor-cut and hand-torn paper and the respective performance rates. Finally, the comparative analysis of textile and paper physical fits was validated through ground truth datasets and inter-examiner and intra-examiner variability studies. A ground truth blind dataset of known fits and known non-fits was created for 700 textile samples with various fiber types, weave patterns, and separation methods. Also, a set of 260 paper items, including 100 stamps and 160 office paper samples, were examined. The paper specimens contained handwritten or printed entries on two paper types and were separated by scissor-cut or hand-torn methods. This proposed research provides the criminal justice system with a valuable body of knowledge and a more objective and methodical assessment of the evidential value of physical fits of textiles, paper, and postage stamps