明代隆昌寺无梁殿的动力特性及抗震性能研究

The brick - vault hall of Longchang Temple at Baohua Mountain is a representative of a series of Ming Dynasty brick - vault halls——a unique architectural heritage type in China. In order to evaluate the structural safety of this architectural heritage in earthquakes, we set up a three - dimensional finite element model to analyze its dynamic properties, seismic response spectrum and seismic time history in order to obtain the natural frequencies, modal modes, seismic effect, and seismic deformation and stress response. The results show that the structure of the hall features high symmetry and high torsional rigidity. The degrees of influence of earthquake on the vibration of the hall are as follows ： roof, side walls and arch on the second floor, eaves of the first floor, side walls and arch on the first floor. Under the Intensity 7 frequently - occurring earthquake, precautionary earthquake, and rarely - occurring earthquake, the most dangerous position of the hall is the junction of the arched window impost and sill wall on the side far away from the stairs on the first floor. In addition, prone to the tensile damage, each arch impost is a weak position in an earthquake. Finally, a seismic strengthening strategy for the brick - vault hall of Longchang Temple is presented based on the results of dynamic properties and seismic behavior analysis. © 2023, Sciences of Conservation and Archaeology. All Rights Reserved.     

The environmental geopolitics of allocation: State power and institutional stability in Eastern Atlantic bluefin tuna management

Geopolitical contests over oceanic space and resources commonly manifest in inter-state resource management bodies. That ocean spaces and resources defy a territorial conception of the nation-state means that the environmental geopolitics that emerge are shaped by the nature of oceans and oceans resources. In this context, allocation is among the most pressing and contentious tasks that inter-state bodies managing transboundary resources face as they carve up and distribute access to valuable, shared resources. This paper examines the allocation of highly migratory, and highly valuable, Eastern Atlantic bluefin tuna to contribute to understanding of state power and institutional stability in transboundary resource management. Drawing on observation of an allocation negotiation and historical allocation patterns, the analysis animates and extends critical property scholarship to develop an environmental geopolitics of allocation. Findings reveal that states form, contest and maintain power by making claims based not only on rights, but also on duties that they perform to the benefit of other states in collective management. Powerful states also make concessions in the allocation process, giving up some historical rights in order to stabilize the multilateral body that enables their dominance in the fishery. Given new and renewed interest in managing shared species, spaces and resources in the oceans and beyond, viewing allocation through the lens of property reveals state power as expressed through a combination of rights and duties between states bound together in management by the materiality of transboundary and mobile natures.     

THE DIFFERENCE PRINCIPLE? SHAPING COMPETITIVE ADVANTAGE IN THE CULTURAL PRODUCT INDUSTRIES

This article argues that due to the endless substitution possibilities open to consumers of cultural products, firms’ competitive advantage rests as much upon positionality and differentiation as upon traditional forms of intellectual property such as copyrights and trademarks. However, the construction of positionality and differentiation may entail geographies and milieus other than associated with product origination and creation. The article suggests that existing models of regional growth and innovation systems must, and can, be adapted to fit firms and sectors where competitiveness is not only based on traditional types of intellectual property (such as copyrights or patents) but also differential property (such as marketplace positionality). The idea of regional systems supportive of differentiation (and market positionality) means we must reappraise some of our notions of what constitute supportive regional conditions. To this end a revised version of the cluster model of regional competitive advantage is presented: one which attempts to be more tailored to industries where intellectual property and differentiation are the core products.     

Land Reform in the Time of Neoliberalism: A Many‐Splendored Thing

Abstract: Over the past 20 years, land reform – defined here as the redistribution of land from large to small properties – has emerged as an important political issue in the Global South. Actors with widely differing ideological perspectives have claimed land reform as central to their political, social and economic platforms. In this paper, I compare reforms championed under the neoliberal auspices of the World Bank (the so‐called Market Led Agrarian Reforms) with those supported by popular grassroots actors such as the Movement of Landless Workers (the MST) in Brazil. I argue that although these two approaches to land reform are often considered antithetical to one another, they share a common theoretical foundation. Both are rooted in a labor theory of property that attributes the fruits of one's labor to the laborer. Where the two differ is in their interpretation of the “original sin” through which land and labor came to be misaligned: neoliberal actors see the state as the key source of land‐related inefficiency while popular grassroots actors identify the market as the key source. I analyze case material from northeastern Brazil and suggest that the institutionalization of the labor theory of property (across civil society, state and market in the region) has generated insecurities for new land reform beneficiaries who must protect their property rights with visible evidence of their productivity.