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The large surface area of inert carbon nanotubes (CNTs) and carbon fibers (CFs) renders insufficient interaction between the CNTs and CFs with the organic matrix. The filler–matrix interactions consequently become important to ensure sufficient wetting and filler dispersion in the matrix. The optimized functionalization method for both the CNTs and CFs will improve the viability of the entities for applications. In this report, we present a comparison between single-walled, multi-walled CNTs and pitch-based CFs in terms of their susceptibility to oxidation. The effects of functionalization reactions and extent of reaction are analyzed in terms of morphology, destruction of graphitization and hydrophobicity of the CNTs and CFs.
Two main factors determine construction of internal temporal architecture in autopoietic systems: external pressure and network of internal interdependences. External influences are given for systems and they are only able to incorporate them into its own functional and temporal blueprint, with very small space for further manipulations. But, internal processes, or more precisely, irreversible reductions toward determined states are enclosed into mobile and alterative network of re-productive cycles. On that basis autopoietic systems are able to construct and manipulate with different temporal strategies as reversibility, delaying, circularity, spiral flows, different distribution of times and so on. Special case is construction of transient time fields, called here intersubjective times, that arise as fusions of two or more specific temporal architectures during their interactions. This paper describes construction of internal proliferation of time patterns and analyze their functional usefulness.
While Digital Libraries (DLs) are moving towards universally accessible collections of human knowledge, considerable advances are needed in DL methodologies and technologies to make this happen. Interoperability between DLs is a crucial requirement to achieve this goal. The European project, DL.org, is focused on advancing the state of the art in this area by proposing solutions, fostering best practices and shared standards, drawing on the knowledge acquired during the DELOS Network of Excellence, and harnessing the expertise of DL domain stakeholder communities. By serving this goal, DL.org is paving the way for the embedding of new research achievements into real-world systems, opening up new cross-domain research perspectives and supporting the advancement of the European Information Space for the knowledge-based economy.