Earlier Workshops Research Articles

Statistical Analysis of the Sixth AIAA Drag Prediction Workshop Solutions

A graphical framework is used for the statistical analysis of the results from an extensive N-version test of a collection of Reynolds-averaged Navier–Stokes computational fluid dynamics codes for the Sixth AIAA Computational Fluid Dynamics Drag Prediction Workshop in June 2016. The solutions were obtained by code developers and users from North America, Europe, Asia, and South America using both common and custom grid sequences, as well as multiple turbulence models. The aerodynamic configuration for the workshop was the Common Research Model, which is a subsonic transport wing–body previously used for both the Fourth and Fifth Drag Prediction Workshops. This work continues the statistical analysis begun in the earlier workshops and compares the results from the grid-convergence study of the most recent workshop with previous workshops. Most notably, the results demonstrate that predicted drag increments show less scatter between codes than the predicted absolute values of drag for a given configuration, and also serve to reinforce a lesson learned from the Fifth Drag Prediction Workshop regarding the importance of a common grid sequence in decreasing the solution variation regardless of the computed output quantity.

Guest Editorial Special Issue on the Physics of Dusty Plasmas 2015

This special issue contains papers solicited at the 14th Workshop on the Physics of Dusty Plasmas, which was hosted by Auburn and Wittenberg University and held in Auburn, AL, USA, from 26 May, 2015 to 29 May, 2015. The publication of this issue follows the tradition of earlier workshops, which resulted in similar special issues in 1994, 2001, 2004, 2007, 2010, and 2013, and is intended to provide a snapshot of recent progress in the field of dusty plasma research.

PCBs in schools--where communities and science come together.

A novel aspect of the 8th International PCB Workshop at Woods Hole, MA, was the interaction between scientists and activists. While earlier workshops in this series had mentioned policy making, this Workshop focused on the problem of PCBs in schools. Focus on a problem brought an activist to give a plenary talk and facilitated a 1-day registration for other non-scientists to attend. The workshop was cohosted by the Superfund Research Programs at University of Iowa and Boston University and included active participation of each Program's Research Translation and Community Engagement Cores. A mandate of each National Institute of Environmental Health Science (NIEHS)-funded Superfund Research Program is bidirectional communication between scientists and community groups. The authors describe the events leading up to community involvement in the Workshop and the substance of the community engagement aspects of the workshop, in particular the participation by a parent-teacher group, Malibu Unites. The authors also discuss the value of such communication in terms of making important research accessible to those who are most affected by the results and poised to use it and the value of making scientists aware of the important role they play in society in addressing difficult questions that originate in community settings.

Selected papers from Dependently Typed Programming 2010 – Overview

This special issue comprises selected papers which were presented at the workshop on dependently typed programming (DTP 10) in Edinburgh in July 2010 – affiliated with Federated Logic conferences (FLOC 10). Earlier workshops on dependently typed programming took place in Nottingham in 2008 (DTP 2008) and there also has been a Dagstuhl seminar (04381) on this subject in 2004. After DTP 2010, in 2011 a workshop on dependently typed programming (DTP 11) took place in Nijmegen affiliated with Interactive Theorem Proving 2011 (ITP 11). In September 2011 there also was a DTP workshop in Shonan, Japan.

Statistical Analysis of the Fourth Drag Prediction Workshop Computational Fluid Dynamics Solutions

A statistical analysis of the results from an extensive N-version test of a collection of Reynolds-averaged Navier–Stokes computational fluid dynamics codes is presented. The solutions were obtained by code developers and users from the United States, Europe, Asia, and Russia using a variety of grid systems and turbulence models for the June 2009 Fourth Drag Prediction Workshop sponsored by the AIAA Applied Aerodynamics Technical Committee. The aerodynamic configuration for this workshop was a new subsonic transport model, the Common Research Model, designed using a modern approach for the wing and included a horizontal tail. The fourth workshop focused on the prediction of both absolute and incremental drag levels for wing–body and wing–body–horizontal-tail configurations. This work continues the statistical analysis begun in the earlier workshops, and compares the results from the grid-convergence study of the most recent workshop with earlier workshops using the statistical framework.

Statistical Analysis of the Fifth Drag Prediction Workshop Computational Fluid Dynamics Solutions

A statistical analysis of the results from an extensive -version test of a collection of Reynolds-averaged Navier–Stokes computational fluid dynamics codes is presented. The solutions were obtained by code developers and users from North America, Europe, Asia, and South America using a common grid sequence and multiple turbulence models for the June 2012 Fifth Drag Prediction Workshop sponsored by the AIAA Applied Aerodynamics Technical Committee. The aerodynamic configuration for this workshop was the Common Research Model subsonic transport wing–body previously used for the Fourth Drag Prediction Workshop. This work continues the statistical analysis begun in the earlier workshops and compares the results from the grid convergence study of the most recent workshop with previous workshops.

Cooperative and human aspects of software engineering

Software is created by people for people working in a range of environments and under various conditions. Understanding the cooperative and human aspects of software development is crucial in order to comprehend how methods and tools are used, and thereby improve the creation and maintenance of software. Both researchers and practitioners have recognized the need to investigate these aspects, but the results of such investigations are dispersed in different conferences and communities. The 6th workshop on Cooperative and Human Aspects of Software Engineering held at the International Conference on Software Engineering continued the tradition from earlier workshops and provide a lively forum to discuss current developments and high quality research in the field, providing both a meeting place for the community and the possibility for researchers interested in joining the field to present and discuss their work in progress and to get an overview of the field. Further dissemination of research results will lead to improvement of software development and deployment across the globe.

Cooperative and human aspects of software engineering

Software is created by people -- software engineers in cooperation with domain experts, users and other stakeholders--in varied environments, under various conditions. Thus understanding cooperative and human aspects of software development is crucial to comprehend how and which methods and tools are required, to improve the creation and maintenance of software. The 3rd workshop on Cooperative and Human Aspects of Software Engineering held at the International Conference on Software Engineering continued the tradition from earlier workshops and provided a lively forum to discuss current developments and high quality research in the field. Further dissemination of research results will lead to an improvement of software development and deployment across the globe.

The Earth’s Magnetic Field in the Space Age: An Introduction to Terrestrial Magnetism

The series of papers presented in this issue of Space Science Research (reprinted as Volume 36 in the Space Science Series of ISSI) is the result of a fruitful workshop that took place at the International Space Science Institute (ISSI), in Bern, Switzerland, during the week of March 9–13, 2009. Focussing on the (still very broad) topic of Terrestrial Magnetism, this workshop was the last of a series of three that aimed to present, discuss and summarize recent advances in our understanding of magnetic fields in the solar system. The earlier workshops, on solar and on planetary magnetism, were held in January and September 2008

Arithmetic and Differential Galois Groups

Galois theory is the study of symmetries in solution spaces of polynomial and differential equations and more generally of the relation between automorphism groups (or group schemes) and the structure of algebraic and differential extensions. Many of the important problems in this area are connected to the classification of (algebraic or differential) Galois extensions and the study of the respective fundamental groups, e.g. via inverse problems. Other interesting points are the direct problem, i.e., the computation of (ordinary or differential) Galois groups, and related constructive aspects. This workshop gave an overview on some important new results and developments. A second goal was the discussion of ideas for proving some open questions and conjectures as well as of new directions of research. The main topics of the workshop were: Besides this main program we had some reports on related subjects like the Cohen-Lenstra heuristics for number fields by J. Klüners and the behaviour of the Tate–Shafarevich group in anticyclotomic field extensions by M. Çiperiani. It is always difficult to emphasise highlights or unexpected results, but one of them might be the result of F. Pop that henselian fields always are large, which is of great interest in field arithmetic and inverse Galois theory. Another striking result is the existence of G_2 -motives over \mathbb{Q} shown by M. Dettweiler which gives a positive answer to an old question of J.-P. Serre. A fruit of common effort in research in arithmetic and differential Galois theory is the development of patching methods for differential modules by D. Harbater and J. Hartmann. This method will allow yet unexpected applications in inverse differential Galois theory and other areas, like K-theory. The talk of B. Malgrange gave a vision of Galois theory for nonlinear differential equations. Exploitation of his work for special types of equations, like Painlevé equations, and the generalization of his ideas to non algebraically closed fields of constants as well as to positive characteristic will keep researchers busy for years. Surely, many other results presented at the workshop should be pointed out here, too, like M. Raynaud's work on fundamental groups in positive characteristic, D. Bertrand's result on Schanuel's conjecture or Ch. Hardouin's generalization of q -difference equations to roots of unity by creating an iterative q -difference theory. Altogether, we had a wonderful and inspiring week with lots of interesting lectures and many discussions bearing ideas for future research. Finally, the organisers want to cordially thank the Oberwolfach administration and its staff for giving us the opportunity to arrange this and earlier workshops on Galois theory as well as for the excellent service.

Preface: Special issue Go05

The workshop on Global Optimization 2005 was held in San Jose, Almeria Spain, 18–22 September. The organising committee consisting of Emilio Carrizosa, Tibor Csendes, Inmaculada Garcia, Eligius Hendrix and Panos Pardalos initiated the idea of the workshop at the MPS meeting in Kopenhagen. Inspired by the style of earlier workshops on GO in Sopron (1990), Szeged (1995) and Firenze (1999), the idea was to attract young researchers to be able to interact with experienced researchers in Global Optimization. The workshop was organised in single stream sessions, in order to give all participants the opportunity to enjoy each of the presentations, implying a limited number of participants. The number of accepted contributions was close to the maximum, such that the program of the workshop was filled completely. The outside and seawater temperature was tempting, but most of the time the participants spent in the local library lecture room that was provided by the municipality of Nijar. The presentations started early and ended late with a big lunch break having the possibility to do a Spanish siesta or swim to refresh the attention. The participants were invited to submit their contribution to this special issue. A wide variety of papers focussing on as well applications as theory development were submitted. The usual referee process, where three experts per paper were invited as referee, lead to the final appearance of nine papers. We are grateful to the contribution of the referees. Typical in the conference was the accent on trajectory calculation and application in physics in the application area. Traditionally, emphasis was on the possibilities of applyingmeta-heuristics and interval techniques. Several contributions were due to mathematical analysis, where the paper on octagons is a representative of.

Image Description on the Internet

The CNI/OCLC Image Metadata Workshop, held September 24-25, 1996, in Dublin, Ohio, was the third workshop in a series being sponsored by OCLC in conjunction with a number of partners. This workshop focused on the application of the Dublin Core element set to image resource description. A consensus was reached supporting the Dublin Core and the related Warwick Framework, both of which were products of earlier workshops, as viable models for image resource description supporting network-based discovery of images.

Remedies proposed for China's groundwater problems

Groundwater experts and hydrologists from China and 10 other nations recently gathered in Beijing to exchange state‐of‐the‐art scientific and technological knowledge on groundwater hydrology, modeling, remediation, and management. The participants also reviewed groundwater environmental conditions in China, identified key problems, and made recommendations to help guide the nation's groundwater policy.The Regional Workshop on Ground Water Contamination, held from July 31 to August 4, 1995, was the fifth of a series of regional workshops sponsored by the Scientific Committee on Problems of the Environment of the United Nations Environmental Program. Earlier workshops were held in Thailand (1991), Costa Rica (1993), the Czech Republic (1994), and Australia (1994).

Results of the third immunology of leprosy/immunology of tuberculosis antimycobacterial monoclonal antibody workshop.

An international workshop was sponsored by the World Health organization to screen new antimycobacterial monoclonal antibodies and to identify antibodies which could be recommended as standard reagents giving consistent results under differing assay conditions. Fifty-eight antibodies were submitted to the workshop by eight independent laboratories. Nineteen of the antibodies recognized antigens distinct from those identified in earlier workshops, defining at least 10 new protein antigens. Monoclonal antibodies characterized in the workshop provide a set of convenient reagents for further characterization of mycobacterial antigens.

Structure function measurements at HERA: Experimental prospects

A compact summary of expected structure function data from HERA is given with special emphasis on first low luminosity data expected to be recorded in 1991. The subject of this talk was treated extensively in earlier workshops. The reader is referred especially to the proceedings of the HERA physics workshop 1 in 1988 which contain a lot of detailed information.

The Third Workshop of the Centre: A Colloquium on ‘Companies and Trade’. Leiden, 19–21 April, 1978

If the earlier workshops organized by the Centre, ‘Expansion and Reaction’ (1975) and ‘Reappraisals in Overseas History’ (1976), aimed at producing, respectively, a survey of some of the main problems involved in modern studies of the history of European expansion and a bibliographic overview of the same field as it appears to us to-day, the third colloquium at last got down to work on a specific historical issue. True, the theme of the trading companies of the ancien regime is a vast one, but the purpose of the workshop, as of the centre itself, was primarily comparative, and for this approach the theme chosen proved eminently fit.