Exploring hidden narratives: Conscript graffiti at the former military base of Kummersdorf

This article explores the cultural significance and interpretative potential of graffiti left by Soviet conscripts at Kummersdorf, a former military base in the German federal state of Brandenburg. The graffiti is framed as war art and its typology, distribution and content is studied in detail. In this way opportunities for further research are highlighted, as well as the potential for the graffiti to contribute to interpretative and conservation strategies. We demonstrate how the graffiti embodies multi-level interpretative narratives which can help to reveal hidden aspects of Soviet conscript life and cultural practices whilst alluding to global events and Soviet and Russian military policy. More generally, the article aims to promote the potential of graffiti and other forms of what is traditionally considered vandalism to contribute to the cultural significance and interpretation of heritage sites

Design of an axisymmetric primitive equation tropical cyclone model

December 1976.Includes bibliographical references (pages 67-69).Sponsored by the Global Atmospheric Research Program, Climate Dynamics Research Section, National Science Foundation DES 74-11438.Sponsored by the Global Atmospheric Research Program, Climate Dynamics Research Section, National Science Foundation ATM 76-09370.Sponsored by the Global Atmospheric Research Program, Climate Dynamics Research Section, National Science Foundation OCD 74-21678

Role of convective-scale processes in tropical cyclone development, The

December, 1980.Includes bibliographical references.Presents an eighteen-level axisymmetric primitive equation tropical cyclone model incorporating the Arakawa-Schubert (1974) spectral cumulus parameterization.Sponsored by the National Science Foundation under grant ATM-7808125 and the Office of Naval Research N00014-79-C-0793

Solar electric propulsion for Mars transport vehicles

Solar electric propulsion (SEP) is an alternative to chemical and nuclear powered propulsion systems for both piloted and unpiloted Mars transport vehicles. Photovoltaic solar cell and array technologies were evaluated as components of SEP power systems. Of the systems considered, the SEP power system composed of multijunction solar cells in an ENTECH domed fresnel concentrator array had the least array mass and area. Trip times to Mars optimized for minimum propellant mass were calculated. Additionally, a preliminary vehicle concept was designed

On Languages Accepted by P/T Systems Composed of joins

Recently, some studies linked the computational power of abstract computing systems based on multiset rewriting to models of Petri nets and the computation power of these nets to their topology. In turn, the computational power of these abstract computing devices can be understood by just looking at their topology, that is, information flow. Here we continue this line of research introducing J languages and proving that they can be accepted by place/transition systems whose underlying net is composed only of joins. Moreover, we investigate how J languages relate to other families of formal languages. In particular, we show that every J language can be accepted by a log n space-bounded non-deterministic Turing machine with a one-way read-only input. We also show that every J language has a semilinear Parikh map and that J languages and context-free languages (CFLs) are incomparable