What Can the State Do for You?

It has been suggested that Swedish policy during the early post-war period was strongly directed towards mobility-increasing expenditures – most notably relocation allowances – aimed at moving labour from north to south. While this view has dominated the academic discussion on labour market policy, there is little direct evidence. We make three claims. First, the relocation allowances have to be evaluated against the regional policy. Second, by doing so we show that the mobility-oriented policy was predominant only for a short period of time: in the early 1970s, there was a decisive shift towards a policy directed at stimulating employment in the north. Third, drawing on this, we revaluate the previous view on policy making in Sweden. Our analysis suggests that the Social Democratic government acted in a voter-maximizing way. The relocation allowances were introduced at the behest of the Trade Union Confederation (LO). The regional subsidies were expanded when voter sentiment turned against the perceived depletion of rural regions. However, this strategy interacted with the political and institutional environment. The new election law in 1970 and political competition from the Centre Party pushed the Social Democrats to shift their policies on regional subsidies.     

A connectivity model as a potential tool for smart specialization strategies

The article contributes to the smart specialization literature by presenting a new approach, connectivity analysis, where Triple Helix (TH) relations (involving universities, companies and government) are at the centre of the entrepreneurial discovery process. Relations between helices may be seen, from the point of departure of proximity, as preconditions of connectivity, or interaction, measured through expectations and experiences. This offers potential solution to two limitations of proximity approach: its static nature and narrow focus on dyadic relationships. The connectivity analysis reveals the extent of mutual expectations, as well as tensions, or gaps. Based on this analysis, the article presents a policy model that is used to map structures of networks and gaps between TH actors. It may also identify strengths, weaknesses and problems. This analysis is used as input to structured dialogues between actors in leading positions in the TH and in smart specialization policy-making and implementation. This approach may lead to policy interventions supporting entrepreneurial discoveries. The model has been developed in partnership with researchers and the Regional Council of Ostrobothnia. The article also presents this case study and demonstrates the use of the connectivity model in practice.     

Adopting ‘things of the little’: intangible cultural heritage and experiential authenticity of place in the Jewellery Quarter,Birmingham

The paper discusses notions and experiences of authenticity of place in relation to intangible cultural heritage. Drawing on qualitative informant interviews with representatives of traditional and new businesses in the Jewellery Quarter in Birmingham (UK), it analyses authenticity of place with regard to three key dimensions: the experience of origins, the experience of continuity and the experience of potentiality and actuality. Findings suggest that intangible cultural heritage activates and facilitates experiences of authenticity, often related to people’s individual identity constructs and associated benefits or detriments. Some heritage concepts have evolved from their narrowly defined historic context and inform experiences of authenticity in the present.     

考古地层的三维建模方法在秦始皇帝陵考古勘探中应用尝试

为了更清楚地展示秦始皇帝陵地区考古地层的三维空间关系,并为后期考古工作中空间数据挖掘做准备,借鉴三维地质建模技术,提出了考古地层三维建模方法。基于探孔数据构建了考古地层三维模型。该模型清楚地展示了秦始皇帝陵地区考古地层的三维空间关系,为田野考古数字化工作提供一种新思路、新方法。     

山西省万荣县寿圣寺塔的多视角影像三维重建

为了制定山西省万荣县寿圣寺塔的保护规划方案,需制作具有真实纹理的三维模型,但砖塔等大型不可移动文物的三维重建难度很大,制作成本一直很高。为此,本研究运用无人机拍摄和地面拍摄多视角影像的技术,制作寿圣寺塔的三维模型,生成各个立面的正射影像图,量算砖塔的高度、宽度等尺寸数据,为这类文物的三维重建提供一种新的技术和方法。     

南方地区古建筑木结构的整体性残损点指标研究

古建筑木结构的残损点指标是对古建筑木结构进行结构安全评估和加固修缮设计的重要指标,目前主要依据1992年制定的《古建筑木结构维护与加固技术规范》(GB 50165—92)中的规定,为了对该规范中的构架整体性残损点指标进行验证和补充,本研究通过对南方地区传统的穿斗木构体系和抬梁木构体系的典型榫卯节点和构架的试验研究,得出两种木构体系结构的整体性关键残损点指标,并与GB 50165—92规范进行比较分析。结果表明:规范规定的抬梁式木构架和穿斗式木构架的局部倾斜残损点比试验结果小,规范值偏于安全。规范中规定的抬梁式木构架梁柱榫卯连接残损点略小于试验结果,规范值偏于安全;而规范中规定的穿斗式木构架梁柱榫卯连接残损点对于燕尾榫穿斗木构而言是安全的,但对于透榫穿斗木构而言,则是不安全的。     

The Dor 2001/1 Byzantine Shipwreck,Israel: final report

Dor 2001/1 was a Byzantine coaster, about 16.9 m long, with an estimated displacement of 50 tonnes, dated to the first third of the 6th century CE, and loaded with building stones. It was excavated over five seasons, recorded under water, and a section of the shipwreck was retrieved and studied on land. The hull construction was based on frames without any type of planking edge‐fasteners. It is thus among the earliest frame‐based shipwrecks found so far in the Mediterranean. The origin of its construction tradition, with flat frames amidships, hard chine and straight sides, might have been related to a riverine tradition.     

Fluid effect on hydraulic fracture propagation behavior: a comparison between water and supercritical CO2‐like fluid

The initiation of hydraulic fractures during fluid injection in deep formations can be either engineered or induced unintentionally. Upon injection of CO₂, the pore fluids in deep formations can be changed from oil/saline water to CO₂ or CO₂ dominated. The type of fluid is important not only because the fluid must fracture the rock, but also because rocks saturated with different pore fluids behave differently. We investigated the influence of fluid properties on fracture propagation behavior by using the cohesive zone model in conjunction with a poroelasticity model. Simulation results indicate that the pore pressure fields are very different for different pore fluids even when the initial field conditions and injection schemes (rate and time) are kept the same. Low viscosity fluids with properties of supercritical CO₂ will create relatively thin and much shorter fractures in comparison with fluids exhibiting properties of water under similar injection schemes. Two significant times are recognized during fracture propagation: the time at which a crack ceases opening and the later time point at which a crack ceases propagating. These times are very different for different fluids. Both fluid compressibility and viscosity influence fracture propagation, with viscosity being the more important property. Viscosity can greatly affect hydraulic conductivity and the leak‐off coefficient. This analysis assumes the in‐situ pore fluid and injected fluid are the same and the pore space is 100% saturated by that fluid at the beginning of the simulation.