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991.
Emma M. Wainwright 《Geoforum》2007,38(4):688-697
Recent and ongoing calls within labour geography and social and cultural geography have highlighted the importance of resistance, its spatial productions and manifestations. However, within this work, the geographical history of the factory system has been largely overlooked. Drawing upon Foucauldian theorisings in the fields of management and organisation, together with recent writings on the geographies of resistance, this paper takes Dundee’s jute industry at the turn of the twentieth century as its focus and explores how the workplace itself, and the very workplace discipline used to ensure a productive, efficient and hardworking workforce, engendered workplace protest among the industry’s working women. Writing through a number of modes and scales of protest within the workplace, within and between work groups, departments, mills and factories, and across the city, this paper adheres to an approach that carefully details the spaces and processes of resistance, paying careful attention to how union and non-union resistances operated and the geographies they worked through and created. 相似文献
992.
993.
滑坡现场监测用的HA-1P数据测量仪 总被引:1,自引:0,他引:1
HA-1P数据测量仪可配接电阻应变计式传感器和电位计式传感器,用来测量倾斜、位移、沉降、挠度、转角、转矩、拉力、压力、应力应变、孔隙水压力和水位等参数,以监测滑坡动态和预报滑坡发生的时间、规模。 相似文献
994.
Takeshi Ohta Tetsuya Hiyama Hiroki Tanaka Takashi Kuwada Trofim C. Maximov Tetsuo Ohata Yoshihiro Fukushima 《水文研究》2001,15(8):1459-1476
The water and energy exchanges in forests form one of the most important hydro‐meteorological systems. There have been far fewer investigations of the water and heat exchange in high latitude forests than of those in warm, humid regions. There have been few observations of this system in Siberia for an entire growing season, including the snowmelt and leaf‐fall seasons. In this study, the characteristics of the energy and water budgets in an eastern Siberian larch forest were investigated from the snowmelt season to the leaf‐fall season. The latent heat flux was strongly affected by the transpiration activity of the larch trees and increased quickly as the larch stand began to foliate. The sensible heat dropped at that time, although the net all‐wave radiation increased. Consequently, the seasonal variation in the Bowen ratio was clearly ‘U’‐shaped, and the minimum value (1·0) occurred in June and July. The Bowen ratio was very high (10–25) in early spring, just before leaf opening. The canopy resistance for a big leaf model far exceeded the aerodynamic resistance and fluctuated over a much wider range. The canopy resistance was strongly restricted by the saturation deficit, and its minimum value was 100 s m?1 (10 mm s?1 in conductance). This minimum canopy resistance is higher than values obtained for forests in warm, humid regions, but is similar to those measured in other boreal conifer forests. It has been suggested that the senescence of leaves also affects the canopy resistance, which was higher in the leaf‐fall season than in the foliated season. The mean evapotranspiration rate from 21 April 1998 to 7 September 1998 was 1·16 mm day?1, and the maximum rate, 2·9 mm day?1, occurred at the beginning of July. For the growing season from 1 June to 31 August, this rate was 1·5 mm day?1. The total evapotranspiration from the forest (151 mm) exceeded the amount of precipitation (106 mm) and was equal to 73% of the total water input (211 mm), including the snow water equivalent. The understory evapotranspiration reached 35% of the total evapotranspiration, and the interception evaporation was 15% of the gross precipitation. The understory evapotranspiration was high and the interception evaporation was low because the canopy was sparse and the leaf area index was low. Copyright © 2001 John Wiley & Sons, Ltd. 相似文献
995.
996.
997.
城市地震灾害及防御对策浅析 总被引:8,自引:0,他引:8
从全球地震灾害的回顾及主要特点着手分析。阐明了城市防震减灾工作是不容忽视的,特别是我国许多城市处在地震易发多发地带,一旦地震发生,对城镇造成的人员伤亡及财产损失极为严重,最后,针对防震减灾对策进行了探讨。 相似文献
998.
999.
考虑土体强度的建筑基坑突涌问题分析 总被引:7,自引:1,他引:7
基于土体的强度特性,并假设突涌破坏体为方柱体或圆柱体,推导出了考虑土体强度的基坑突涌稳定性计算公式,计算结果表明,对于一般的粘性土, 考虑其强度后的抗力分项系数比不考虑强度的抗力分项系数增加二倍以上,汉口地区许多基坑开挖并没有出现突涌现象,表明土体的抗剪强度对抗力起着不可忽视的作用,因此考虑土体强度的突涌稳定性分析是比较接近工程实际的。 相似文献
1000.
David Featherstone 《Geoforum》2004,35(6):701-711
This paper engages with the material geographies of political conflict. It applies the concerns of actor-network theory around the entangled character of material/social relations to the geographies of subaltern politics. It explores how interconnected strikes of riverside labourers and sailors in the London and Newcastle Port Strikes of 1768 contested the terms on which materials were enrolled into mercantile capitalist networks. The dynamic geographies of these strikes are used to unsettle constructions of subaltern spaces of politics as bounded and localised. The paper then demonstrates how labourers crafted multiple antagonisms through negotiating their location in materially heterogeneous networks. It uses this concern with contested material geographies to engage with the entangled construction of political identities. The paper concludes that interrogating the materialities of political conflict does not just add a neglected technical dimension to the study of political activity; it provides considerable resources for engaging with the inventiveness of subaltern political activity and agency [Barry, A., Political Machines: Governing A Technological Society, Continuum Publications, London, 2001]. 相似文献