1,721,132 research outputs found
Conference Proceedings of the Second International Conference on: Preservation and Conservation Issues Related to Digital Printing and Digital Photography
No full textThe research is in the field of conservation of digitally printed materials. In order to accurately edit these proceedings the editors required detailed knowledge in all research aspects covered during the conference.
The conference was held on 24th & 25th March 2003 at Heriot-Watt University, Edinburgh as part of the Institute of Physics Annual Physics Congress 2003. The conference was jointly organised by the Institute of Physics 3Ps Group and The London College of Printing, The London Institute. The conference was organised by Andrew Manning, Robert Thompson and Anthony Smith.
The conference proceedings were edited and compiled by Andrew Manning and Robert Thompson.
The conference was the second international event, the first being held in 2000. The conference was unique in attracting speakers from industry and academic institutions as well as standards organisations. There were four sessions; session one dealt with the concerns of the artists and printmakers, session two with materials, processes and permanence issues, session three dealt with standards and the last session with digital photography. At the end of each session there was a panel discussion, these has been reproduced in the proceedings. The second panel, which dealt with Materials, Processes and Permanence Issues, was chaired by the researcher. As well as the printed papers there is an accompanying CD showing additional material which again was compiled by the editors.
The proceedings are a unique collection of research papers and discussions on the topics of conservation and preservation of digitally produced material. They are to be found in many libraries throughout the world. The Institute of Physics were still reporting a demand for these proceedings in 2005, at the subsequent conference held in 2006 all the remaining copies were sold
Conference Proceedings: 1st International Conference on Preservation and Conservation Issues related to Digital Printing
No full textThe area of research is conservation with particular interest in the factors affecting digital printing
These Conference Proceedings were edited and subsequently published in March 2001. The lead organiser and editor was Professor Robert Thompson. The author liaised with the speakers to produce the final papers that are published here.
The conference was novel in bringing together speakers and an audience of conservation and preservation scientists, chemists, physicists, artists; conservators from galleries, museums and libraries as well as suppliers of ink, paper and printing technologies. The aim of the conference was to explore the issues affecting the longevity of artefacts produced using the new digital printing technologies and their associated materials. Unlike established artists and author media, the substrates and colorants used with digital printing technologies are now known to be unstable under a range of conditions and artefacts so produced are threatened during display and storage.
However, the use of digital printing by artists and publishing houses is increasing rapidly and with them the potential for degradation of original works. Accordingly there is growing international concern about the future of such materials and the ability to conserve them for posterity.
Many interesting and useful conclusions were drawn regarding the state of the stability and longevity of digitally printed artefacts. Factors affecting the stability of prints were found to be complex. It was established that there was a dearth of information relating to specification and standardisation of test procedures and storage criteria. Work is under way with the International Standards Organisation and is a subject to be pursued by subsequent conferences.
The speakers were drawn from an international pool of expertise from the US, Germany, Canada, Denmark, France, as well as the UK.
The author’s knowledge in such a range of subjects ensured that these proceedings have appeared in print
Non-Intrusive Characterization and Monitoring of Fluid Mud: Laboratory Experiments with Seismic Techniques, Distributed Acoustic Sensing (DAS), and Distributed Temperature Sensing (DTS)
No full textIn ports and waterways, the bathymetry is regularly surveyed for updating navigation charts ensuring safe transport. In port areas with fluid-mud layers, most traditional surveying techniques are accurate but are intrusive and provide one-dimensional measurements limiting their application. Current non-intrusive surveying techniques are less accurate in detecting and monitoring muddy consolidated or sandy bed below fluid-mud layers. Furthermore, their application is restricted by surveying-vessels availability limiting temporary storm- or dredging-related bathymetrical changes capture. In this chapter, we first review existing non-intrusive techniques, with emphasis on sound techniques. Then, we give a short review of several seismic-exploration techniques applicable to non-intrusive fluid-mud characterization and monitoring with high spatial and temporal resolution. Based on the latter, we present recent advances in non-intrusive fluid-mud monitoring using ultrasonic transmission and reflection measurements. We show laboratory results for monitoring velocity changes of longitudinal and transverse waves propagating through fluid mud while it is consolidating. We correlate the velocity changes with shear-strength changes while the fluid mud is consolidating and show a positive correlation with the yield stress. We show ultrasonic laboratory results using reflection and transmission techniques for estimating the fluid-mud longitudinal- and transverse-wave velocities. For water/mud interface detection, we also use distributed acoustic sensing (DAS) and distributed temperature sensing (DTS
Rheology of Mud: An Overview for Ports and Waterways Applications
No full textMud, a cohesive material, consists of water, clay minerals, sand, silt and small quantities of organic matter (i.e., biopolymers). Amongst the different mud layers formed by human or natural activities, the fluid mud layer found on top of all the others is quite important from navigational point of view in ports and waterways. Rheological properties of fluid mud layers play an important role in navigation through fluid mud and in fluid mud transport. However, the rheological properties of mud are known to vary as a function of sampling location within a port, sampling depth and sampling location across the globe. Therefore, this variability in rheolog-ical fingerprint of mud requires a detailed and systematic analysis. This chapter presents two different sampling techniques and the measured rheological properties of mud, obtained from laboratory experiments. The six protocols used to measure the yield stresses are detailed and compared. Furthermore, the empirical or semi-empirical models that are commonly used to fit rheological experimental data of such systems are presented. The influence of different factors such as density and organic matter content on the rheological behavior of mud is discussed. The fluidic yield stress of mud samples was observed to vary from 0.2 Pa to 500 Pa as a function of density and organic matter content.Rivers, Ports, Waterways and Dredging EngineeringEnvironmental Fluid Mechanic
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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