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Journal of Archaeological Method and Theory - Efficiency-based frameworks have a long history in archaeological research and have been used particularly by zooarchaeologists when interpreting...  相似文献   
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The European Union (EU) has been involved in influencing major infrastructure in the fields of transport and energy mainly by means of the Trans-European Networks (TENs) programme begun in the 1990s. Other macro-planning and wider spatial planning exercises, including the European Spatial Development Perspective, made reference to such infrastructure systems, particularly in relation to the need for connectivity and mobility, but normally did not attempt to intervene in an area seen as one of the prerogatives of national states. Much more important have been the wider programmes of liberalization pressed by the EU since the 1980s, but these have had no specific geographical content. A revision of the TENs programmes since 2008 has led to proposals to increase the role of the EU, by drawing up continent wide schemas indicating needs for future investment in many fields of both transport and energy, and introducing new procedures to streamline decision-making by designating projects as of European interest. The initiatives in transport and energy are described here, including the two Regulations currently under discussion within the EU institutions. These include major proposals for cross-European multi-modal transport corridors within an EU core network, and regional schemas for energy drawn up primarily by energy industries and government counterparts. Both are likely to be of real significance for spatial planners throughout the continent, and have major impacts on the shapes of future infrastructure networks. These proposals are analysed, as cases of the rescaling and re-ordering of government, giving more force to the EU in these fields, and reinforcing sectoral- or silo-based decision-making. It is argued that somewhat different outcomes will result in the few areas, such as the Baltic, where long-term macro-regional collaboration has been present, from the rest of Europe, where these sectoral programmes may complicate further the mix of planning impacting on each region, making even more confused the accountability of governance. Suggestions are made for the careful assessment of these schemas by national and regional governments, and for the creation of some spatial planning analytical capability at the EU level, which could examine this type of proposals, with powerful spatial impacts.  相似文献   
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A Multi-phase Passive Control System (MPCS) combines two passive control devices in order to offset the individual weaknesses and enhance structural performance, allowing the structure to respond effectively to varying levels of loading. Previous work involving a nine-story frame demonstrated the effectiveness of MPCSs but the fundamental understanding of the system was lacking. In order to more clearly understand the behavior and identify important parameters and parameter interactions, a single-degree-of-freedom (SDOF) non-linear dynamic study was performed. The results offer significant insight towards developing structural systems adaptable to multi-objective performance-based design procedures that meet higher performance standards than for ductility-based design.  相似文献   
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Prehistoric molluscan assemblages provide insights into long-term patterns of human landscape use, environmental change, and human impacts to marine resources. The investigation of forager decision-making regarding the selection of certain mollusc taxa and/or the exploitation of particular habitats is fundamental to understanding human-environment interactions in the past, and is relevant for understanding trajectories of human impacts to the intertidal zone in coastal settings. We document variability in the collection of molluscs at two archaeological sites on Ebon Atoll, Republic of the Marshall Islands: one on a windward, intermittently occupied islet, and the other on a permanently inhabited leeward islet. All molluscan taxa were assigned to a range of habitats within a hierarchical classification scheme for intertidal marine environments. The relative abundance of taxa from each habitat was used as a proxy for forager decision-making. We report a generalized, non-selective, foraging strategy focused on gastropod taxa from the high intertidal and supratidal. These results indicate that rather than focusing intensively on select taxa, intertidal foragers targeted particular marine habitats, taking advantage of the predictable behaviors of the molluscs that inhabit them.  相似文献   
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