8th European Conference Research Articles

The effect of fiber orientation angle in composite materials on moisture absorption and material degradation after hygrothermal ageing

This paper examines the effect of fiber orientation angle of composite material (T300/5208) on the phenomenon of humidity diffusion. Using an analytical method, humidity concentration through the thickness of plates of E-glass/epoxy and carbon/epoxy (T300/5208) composites are calculated. This method also predicts the saturation in humidity and the time to saturation. Analytical formulations have been proposed [G. Verchery, Moisture diffusion in polymer matrix composites with cyclic environmental conditions, Developments in the Sciences and Technology of Composite Materials, in: A.R. Bunsell, J.F. Jamet, A. Massiah (Eds.), Proceeding of the 5th European Conference on Composites Materials (ECCM5), European Association For Composite Materials (EACM), Bordeaux, France (1992) 505; E. Adda-Bedia, W.S. Han, G. Verchery, Moisture diffusion in polymer matrix composites with cyclic environmental conditions, Textile composites in building construction (TCIBC 1992), in: P. Hamelin, G. Verchery (Eds.), Proceeding of the International Symposium Textile Composites in Building Construction, Pluralis, Paris, Part. 2, Lyon, France (1992a) 127; W.S. Han, E. Adda-Bedia, G. Verchery, Diffusion de l’humidité dans une plaque composite soumise à des conditions d’environnement cycliques”, Anales des Composites, Publication éditée par l’AMAC (1992) 29; E. Adda-Bedia, W.S. Han, G. Verchery, Simplified methods for prediction of moisture diffusion in polymer matrix composites with cyclic environmental conditions, International Journal of Polymers and Polymer Composites 6 (4) (1998) 189] to solve Fick’s equation which describes the kinematics of hygroscopic absorption in materials. The diffusivity in composites being a very important parameter, the present model is described in detail. In addition, a study of the effects of environmental conditions and fiber orientation angle on saturation values and ageing degradation of E-glass/epoxy composites exposed to hygrothermal conditions is proposed.

Demonstration of Infrared-Photovoltaics for a Full-Spectrum Solar Energy System

A nonimaging (NI) device and infrared-photovoltaic (IR-PV) array for use in a full-spectrum solar energy system has been designed, built, and tested (Dye et al., 2003, “Optical Design of an Infrared Non-Imaging Device for a Full-Spectrum Solar Energy System,” Proceedings of the ASME International Solar Energy Society Conference; Dye and Wood, 2003, Infrared Transmission Efficiency of Refractive and Reflective Non-Imaging Devices for a Full-Spectrum Solar Energy System,” Nonimaging Optics: Maximum Efficiency Light Transfer VII, Proc. SPIE, 5185; Fraas et al., 2001, Infrared Photovoltaics for Combined Solar Lighting and Electricity for Buildings,” Proceedings of 17th European Photovoltaic Solar Energy Conference}. This system was designed to utilize the otherwise wasted infrared (IR) energy that is separated from the visible portion of the solar spectrum before the visible light is harvested. The IR energy will be converted to electricity via a gallium antimonide (GaSb) IR-PV array. The experimental apparatus for the testing of the IR optics and IR-PV performance is described. Array performance data will be presented, along with a comparison between outdoor experimental tests and laboratory flash tests. An analysis of the flow of the infrared energy through the collection system will be presented, and recommendations will be made for improvements. The IR-PV array generated a maximum of 26.7W, demonstrating a conversion efficiency of the IR energy of 12%.

The 1st workshop on ROC analysis in artificial intelligence (ROCAI-2004)

This short report includes a summary of the presentations and discussions held during the ROCAI-2004 workshop, as well as the workshop conclusions and the future agenda. ROCAI-2004 was held in Valencia, on August the 22nd, as part of the 16th European Conference on Artificial Intelligence, ECAI-2004, in Valencia, Spain.

Assistive Technology From Virtuality to Reality 8th European Conference for the Advancement of Assistive Technology in Europe. Faculty of Medicine Henri Warembourg – Lille – France – September 6–9, 2005

Assistive Technology From Virtuality to Reality 8th European Conference for the Advancement of Assistive Technology in Europe. Faculty of Medicine Henri Warembourg – Lille – France – September 6–9, 2005

Current fatigue and fracture research in Portugal

This issue is a sample of current work in Portugal on diverse topics within the broad field of fatigue, fracture, structural integrity and related areas. The common feature of the papers included is the authorship by researchers of several Portuguese universities and other organizations, although in some cases the articles include co-authors from other countries such as France, Romania, the United Kingdom and the United States. The work presented in this issue covers composites and metals, involving experimental and numerical tools and concepts. It includes papers on topics such as biaxial fatigue, welded connections, pressure vessels, rolling contact, and aspects of the fatigue behaviour of aluminium alloys. Structural integrity studies of gas turbine discs, exhaust pipes of naval turbines, fighter aircraft, and cold worked cracked holes for fuselage applications are presented. As far as composites are concerned, studies on interlaminar fracture, intralaminar cracking and fracture of composite co-cured joints are included. Fatigue and fracture research in Portugal is the subject of regular Portuguese Conferences on Fracture organized by the Sociedade Portuguesa de Materiais (SPM). The 9th edition of this series, started in 1983, took place in Setúbal on 18–20 February 2004, and was included in the calendar of the European Structural Integrity Society (ESIS). In parallel with these national events, which usually attract a number of experts from other countries, several international meetings already took place in Portugal. To give just two examples, the ESIS 6th International Conference on Biaxial/Multiaxial Fatigue and Fracture, Lisbon, 25–28 June 2001, and the early 5th European Conference on Fracture, 17–21 September 1984, organized in the context of the European Group on Fracture (predecessor of ESIS), may be mentioned. Joint events with the Spanish researchers—the Iberian conferences—are occasionally organized, and these started with an event in Braga in 1987. The active community of researchers in the field, and the natural good conditions, make Portugal an interesting location for organizing these scientific meetings as indicated by the 1st International Conference on Engineering Failure Analysis ICEFA-1, Lisbon, 12–14 July 2004, or proposed future events in the context of the European Mechanics Society (EUROMECH). A relatively small country of approximately 10 million inhabitants, Portugal has seen a substantial increase in research and development activities since the 1970s. This is a result of several factors, among which should be mentioned a large concentrated effort of training academic staff in foreign universities started in the beginning of 1970s. In the areas of interest for this journal, that policy was translated into practice by Professor Luciano Faria in Lisbon (Instituto Superior Técnico of the Universidade Técnica de Lisboa— IST), and by Professor Vasco Sá in Porto (Faculdade de Engenharia da Universidade do Porto—FEUP). Among others, they led the selection and created conditions for the training of the first generations of experts in these fields, which took place principally in the United Kingdom and France. More recent decades witnessed the development of the research capacity in the country. In parallel there is an increasing internationalization of the activity, with frequent stays in Portuguese universities of post-doctoral researchers and visiting professors in the context of programmes such as the NATO post-doctoral scholarships or the U.S. Fulbright Commission, participation in European Union and other international R&D projects, and joint supervision of doctorates by Portuguese researchers in foreign universities, and by foreign researchers in Portuguese universities. The editors of Fatigue and Fracture of Engineering Materials and Structures (FFEMS) approved in 2002 a suggestion for the publication of a special issue concerning research in Portugal. The result, now in the hands of the readers of the journal, is a series of papers that went through the usual refereeing process of this journal. I would like to express my gratitude to the authors and referees. As Guest Editor of this issue, I am indebted to the editors of FFEMS, and to Professor Eann Patterson in particular, for encouragement and interest in this project.

Induction operators for a computational colour–texture representation

The aim of this paper is to outline a perceptual approach to a computational colour–texture representation based on some colour induction phenomena. The extension of classical grey level methods for texture processing to the RGB channels of the corresponding colour texture is not the best solution to simulate human perception. Chromatic induction mechanisms of the human visual system, that has been widely studied in psychophysics, play an important role when looking at scenes where the spatial frequency is high as it occurs on texture images. Besides others, chromatic induction includes two complementary effects: chromatic assimilation and chromatic contrast. While the former has been measured by Wandell and Zhang [A spatial extension of CIELAB for digital colour image reproduction, in: SID, 1996] and extended to computer vision by Petrou et al. [Perceptual smoothing and segmentation of colour textures, in: 5th European Conference on Computer Vision, Freiburg, Germany, 1998, pp. 623] as a perceptual blurring, some aspects on the last one still remain to be measured, but it has to be a computational operator that simulates the contrast induction phenomenon performing a perceptual sharpening that preserves the structural properties of the texture. Applying both, the perceptual sharpening and the perceptual blurring, we propose to build a tower of images as an induction front-end that can be the basis of a perceptual representation of colour–textures.

The Most Interesting Papers Devoted to Ultrasonic Testing on the Eighth European Conference

The 8th European Conference on Nondestructive Testing took place in Barcelona on July, 2002. Approximately 400 papers over all the world were presented on a compact disk. The author studied the papers devoted to ultrasonic testing and reviews the papers considered to be the most interesting.

Use of X-ray computed tomography for the estimation of parameters relevant to the modeling of acoustic scattering from the seafloor

Underwater sonar systems are increasingly being used at frequencies greater than 100 kHz for bathymetry measurement, seabed characterization and object detection [Proceedings of the 5th European Conference on Underwater Acoustics, Vol. 2, p. 1283]. In general, there are two main contributions to the backscattered acoustic wave due to seafloor properties: scattering from interface roughness (interface scattering) and from volume heterogeneities (e.g. due to sediment layering or bioturbation) in the first few decimeters of the seabed (volume scattering) [J. Acoust. Soc. Am. 95 (1994) 2441]. Until recently, modeling and validated measurements at these very high frequencies have been limited by the difficulty of accurately characterizing seabed properties at centimeter and sub-centimeter scales. This paper examines how X-ray computed tomography (CT) scans of seafloor cores have been used to obtain data sets that not only allow computation of both the statistical and the spatial distribution of density-related parameters relevant to volume scattering modeling, but also represent a valuable tool for selective, nondestructive visual analysis of inner features of cores. The main advantages of X-ray CT are the excellent spatial resolution and the ready availability of digital data sets that naturally lend themselves to computer processing. The methodology of the whole process, from core collection to data retrieval is described here, with special emphasis on image processing and density quantification issues.

AN INTEGRATED SYSTEM FOR REAL-TIME PCR ANALYSIS BASED ON MICROFLUIDIC BIOCHIP

International Journal of Computational Engineering ScienceVol. 04, No. 02, pp. 285-288 (2003) BioMEMS and MicrofluidsNo AccessAN INTEGRATED SYSTEM FOR REAL-TIME PCR ANALYSIS BASED ON MICROFLUIDIC BIOCHIPQINGHUI WANG, YIN TAN, and HAIQING GONGQINGHUI WANGBioMEMS Laboratory, School of Mechanical and Production Engineering, Nanyang Technological University, Singapore Search for more papers by this author , YIN TANBioMEMS Laboratory, School of Mechanical and Production Engineering, Nanyang Technological University, Singapore Search for more papers by this author , and HAIQING GONGBioMEMS Laboratory, School of Mechanical and Production Engineering, Nanyang Technological University, Singapore Search for more papers by this author https://doi.org/10.1142/S1465876303001095Cited by:6 PreviousNext AboutSectionsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack CitationsRecommend to Library ShareShare onFacebookTwitterLinked InRedditEmail AbstractTogether with our efforts of developing low-cost and high throughput DNA analysis chips based on microfluidics technologies, an automated and integrated system has been developed for real-time polymerase chain reaction (PCR) analysis based on the microfluidic PCR array chips. In order to yield rapid and stable thermal cycling in liquid sample contained in biochip wells, efforts have been made on optimizing thermal cycling performance through PID control. Rapid and homogenous PCR thermal cycling has been achieved with the system. In this paper, we present the system instrumentation and its thermal cycling control.Keywords:Instrumentationthermal cyclingPCRbiochip References J. Chenget al., Nucleic Acids Res. 24, 380 (1996). Crossref, Google ScholarY. C. Lin, C. C. Yang and M. Y. Huang, Sens. Actuators B 71, 127 (2000). Crossref, Google Scholar J. El-Ali, I. R. Perch-Nielsen, SU-8 based PCR chip with integrated heaters and thermometer, The 16th European Conference on Solid-State Transducers, Prague, Czech (Sep. 2002) 15-18 . Google ScholarM. H. Lee, I. M. Hsing and I. K. Lao, Anal. Chem. 72, 4242 (2002). Crossref, Google ScholarK. Sunet al., Sens. Actuators B 84, 283 (2002). Crossref, Google ScholarC. F. Chouet al., Microelectronic Engineering 61–62, 921 (2002). Crossref, Google ScholarJ. Khandurina and T. E. McKnight, Anal. Chem. 72, 2995 (2000). Crossref, Google ScholarR. P. Odaet al., Anal. Chem. 70, 4361 (1998). Crossref, Google Scholar FiguresReferencesRelatedDetailsCited By 6Optothermal sample preconcentration and manipulation with temperature gradient focusingM. Akbari, M. Bahrami and D. Sinton12 August 2011 | Microfluidics and Nanofluidics, Vol. 12, No. 1-4Simultaneous detection of Salmonella enterica, Escherichia coli O157:H7, and Listeria monocytogenes using oscillatory-flow multiplex PCRHaiying Wang, Chunsun Zhang and Da Xing23 March 2011 | Microchimica Acta, Vol. 173, No. 3-4Real-time PCR array chip with capillary-driven sample loading and reactor sealing for point-of-care applicationsNaveen Ramalingam, Hao-Bing Liu, Chang-Chun Dai, Yu Jiang and Hui Wang et al.7 May 2009 | Biomedical Microdevices, Vol. 11, No. 5Microfluidic devices harboring unsealed reactors for real-time isothermal helicase-dependent amplificationNaveen Ramalingam, Tong Chee San, Teo Jin Kai, Matthew Yew Mun Mak and Hai-Qing Gong9 January 2009 | Microfluidics and Nanofluidics, Vol. 7, No. 3PCR microfluidic devices for DNA amplificationChunsun Zhang, Jinliang Xu, Wenli Ma and Wenling Zheng1 May 2006 | Biotechnology Advances, Vol. 24, No. 3Feedforward Variable Structural Proportional-Integral-Derivative for Temperature Control of Polymerase Chain ReactionXianbo QIU, Jingqi YUAN and Zhifeng WANG1 Apr 2006 | Chinese Journal of Chemical Engineering, Vol. 14, No. 2 Recommended Vol. 04, No. 02 Metrics History KeywordsInstrumentationthermal cyclingPCRbiochipPDF download

Abstracts of the 17th European Histocompatibility Conference and 11th Annual Meeting of the German Society of Immunogenetics. 6-9 May 2003, Baden-Baden, Germany.

Genes and Immunity (2003) 4, S1-S4. doi:10.1038/sj.gene.6363987

Despite a sad cloud over Brighton, the 5th European Conference was successful

Despite a sad cloud over Brighton, the 5th European Conference was successful

Most Interesting Branches of the Development of Ultrasonic Testing of Metals (On the Basis of Proceedings of the 7th European Conference). Progress in Nondestructive Testing

The 7th European Conference on Nondestructive Testing took place at Copenhagen in 1998 [1]. The aim of this paper is briefly to review most interesting reports of the conference.

Creating patterns of meaning: a collaborative approach to sensemaking

The objective of the final plenary session of the 8th European Mentoring Conference was to establish a new understanding of mentoring through a collaborative approach to creating patterns of meaning about the subject. We wanted to use participants’ insights from the sessions they attended. Each insight could then be seen as an “ingredient” or as a “particle”, “cell” or “molecule” of meaning that, when seen in relation to other such “molecules”, would evoke a deeper insight into what we already recognise as a complex mentoring process. Clearly phrases such as “molecules of meaning” are relevant to approaching the science of making patterns of meaning and chosen because such expressions are not part of our everyday vocabulary. They have us stretch our attention and imagination, and are helpful in the stages of a methodology suggested to participants. This paper is an account of what participants did leading up to the final plenary, what we as facilitators did in preparation for this session, what happened during the plenary and what emerged as a result of collaborative sense making.

8th European Mental Health Nursing Conference `Rewind ‐ refocus on global mental health nursing' 7‐8 February 2003, Art and Tech Hotel, London

8th European Mental Health Nursing Conference `Rewind ‐ refocus on global mental health nursing' 7‐8 February 2003, Art and Tech Hotel, London

Report on the 5th European GIM Conference

Report on the 5th European GIM Conference

5th European conference on principles of knowledge discovery in databases

1 OpeningPKDD 2001, the 5th European Conference on Principles of Knowledge Discovery in Databases (PKDD), was held in Freiburg, Baden-Württemberg, Germany, this year (Monday 3 to Thursday 7 September), and co-located with the 12th European Conference on Machine Learning (ECML 2001). The proceedings comprised two volumes, one for PKDD (De Raedt & Siebes, 2001) and one for ECML (De Raedt & Flach, 2001); and form part of the Springer Lecture Notes on Artificial Intelligence (LNAI) series. The conference was held in the University buildings in the centre of the old town. Freiburg and the surrounding area were for many years part of the Austro-Hungarian empire and thus the university was described to us as being one of the oldest Austrian Universities.

DNS of a turbulent boundary layer with separation

The present contribution reports on a direct numerical simulation (DNS) of a turbulent boundary layer that undergoes separation due to the presence of a pressure gradient at a moderate Reynolds number. The variation of the free-stream velocity has been chosen according to an experiment of Kalter and Fernholz (The influence of free-stream turbulence on an axisymmetric turbulent boundary layer in, and relaxing from, an adverse pressure gradient. In: 5th European Turbulence Conference, Siena, 1994). Because of limited computational resources, the momentum thickness Reynolds number at the reference position had to be reduced to Re θ =870 which is about half as large as that of the experiment. Nevertheless, a comparison of integral parameters as well as first and higher order moments shows fair agreement between DNS and experiment. An inspection of the momentum balance underlines the prominent role of the Reynolds stresses in controlling the structure and geometry of the separation bubble. Its shape and dynamics are governed by large scale vortices reaching from the wall to the shear layer above it.

16th European Histocompatibility Conference

European Journal of ImmunogeneticsVolume 29, Issue 2 p. 119-120 16th European Histocompatibility Conference First published: 25 March 2002 https://doi.org/10.1046/j.1365-2370.2002.029002119.xCitations: 1AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article.Citing Literature Volume29, Issue2April 2002Pages 119-120 RelatedInformation

Author index of the 16th European Conference on Eye Movements 2011

This document contains the author index of the 16th European Conference on Eye Movements, August 21-25 2011 in Marseille, France

Abstracts of the 16th European Conference on Eye Movements 2011

This document contains all abstracts of the 16th European Conference on Eye Movements, August 21-25 2011 in Marseille, France. It was a real honour and a great pleasure to welcome more than 500 delegates to Marseille for the 16th edition of the European Conference on Eye Movements. The series of ECEM conferences started in 1981 under the auspices of Rudolf Groner in Bern. This year, we therefore celebrated the 30th Anniversary of ECEM. For this special occasion we had as a special guest Rudolf Groner, and honoured Alan Kennedy and George W. McConkie for their contributions to our field in two special symposia. We had the pleasure of listening to six keynote lectures given respectively by Patrick Cavanagh, Ralf Engbert, Edward L. Keller, Eileen Kowler, Rich Krauzlis and Gordon E. Legge. These exceptional scientific events were nicely complemented by all submissions, which made the ECEM 2011 program a very rich and interdisciplinary endeavor, comprising 19 symposia, 243 talks and 287 poster presentations, and a total of about 550 participants. The conference opened with an address given by Denis Bertin, vice president of the scientific committee of the University of Provence, and representing Jean-Paul Caverni, President of the University of Provence. It closed with Rudolf Groner’s address and the awarding of the best poster contributions by students and postdocs. This year, three posters were awarded; the first prize was offered by SR Research, the second prize was given by the Cognitive Science Society, and the third, the Rudolf Groner Prize, was offered by the ECEM organizing committee. The conference was held on the St Charles campus of the University of Provence, and to mark the return of ECEM in Southern Europe, many events including lunches, coffee breaks, aperitifs and poster sessions took place outside under the trees of our campus. Luckily, the sun was with us for the five days of the conference ! Françoise, Stéphanie, Stéphane, Eric & Laurent