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81.
天然气流量计量现状与发展 总被引:1,自引:0,他引:1
天然气流量计量是天然气生产、输送和销售的关键环节,从分析发展天然气计量技术的意义角度出发,介绍了天然气流量计量技术现状,包括:计量标准、孔板流量计、涡轮流量计、超声波流量计以及其它新型的天然气计量仪表。并结合我国天然气工业发展的需要.对天然气流量计量技术的发展趋势进行了预测。 相似文献
82.
《Journal of Travel & Tourism Marketing》2013,30(3-4):47-62
Abstract Touring holidays are greenhouse gas intensive, and ways are being sought to reduce these emissions in New Zealand. This research seeks to influence rental vehicle tourists' planning and decision making towards shorter travel. Semi-structured interviews (n = 96) were conducted as part of a quasi-experimental approach, in which tourists were “treated” by receiving a purpose-designed tourist map. Three levels of planning and decision making could be distinguished, whereby both cognitive and affective processes were important. The tourist map did not influence tourists' itineraries, but tourists in New Zealand consistently followed a “travel budget” of about 3-5 hours driving per day. 相似文献
83.
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85.
煤矿爆破作业中有毒气体的危害及对策 总被引:3,自引:0,他引:3
煤矿爆破作业中,炸药在释放出爆炸能的同时也产生一些有毒气体,本文论述了这些有毒气体产生的原因,对人体的危害和避免危害的对策. 相似文献
86.
美国页岩气产业发展的成功经验分析 总被引:5,自引:1,他引:5
美国页岩气成功发展,不仅使页岩气成为美国能源供应的重要组成部分,直接扭转了美国天然气进口的局面,而且直接导致天然气价格的持续下降。美国在页岩气领域取得的成功,缘于市场、技术、财税、政策和法律等多方面的合力,具有明显的美国政治、经济和社会的特点。在研究美国页岩气产业发展成功经验的基础上,结合我国实际提出了促进我国页岩气科学发展的建议。 相似文献
87.
The growing concerns of climate change require implementing measures to quantify, to monitor and to minimize greenhouse gas (GHG) emissions. Nonetheless, most of the measures available are not easy to define or execute because they rely on current emissions and have a corrective character. To address this issue, a methodology to characterize GHG emissions that allows implementing preventive measures is proposed in this paper. The methodology is related to household urban planning procedures and considers urban infrastructures to characterize GHG emissions and to execute preventive measures based on sustainability design criteria. The methodology has been tested by applying it to a set of medium-sized municipalities with average GHG emissions from 6,822.32 kgCO2eq/year to 5,913.79 kgCO2eq/year for every residential unit. The results indicate that the greatest pollutant source is transport, especially in the issuance of street network design, followed by gas and electricity consumption. The average undevelopable land area required for the complete GHG emissions capture amounts to 3.42 m2 of undevelopable land for every m2 of urbanizable land and 9.02 m2 of undevelopable land for every m2 of built land. 相似文献
88.
Brazil is trying to identify ways to ally economic growth with climate change mitigation. Productivity gains in livestock have been pointed out as a promising alternative to achieve that goal. Thus, this paper analyses the economic impacts of a policy of productivity gains in the Brazilian livestock. Besides, we evaluate if the policy may conciliate agricultural growth and deforestation control, bearing in mind the reduction of greenhouse gas (GHG) emissions from land-use changes. The analysis was carried out through a computable general equilibrium (CGE) model, tailored to represent land-use changes, GHG emissions and removals. Besides, it made progress modeling the heterogeneity of climate, soils, and emissions in inter-regional models with many regions. The results show that productivity gains can effectively “save” land and thus avoid deforestation, especially in the Amazon and Cerrado (savannah) biomes. The policy also may boost the economic growth, spreading it to other regions of Brazil, like Centre-West and North, and increasing income and consumption in those places. However, as a climate policy, focused on the reduction of GHG emissions, the results may be counterproductive. The net amount issued may increase, as a result of the positive stimulus of the policy on the economy, and GHG emissions are directly related to the economic growth. 相似文献
89.
In the inter-stakeholder relations in environmental and natural resource management disputes, farmers and environmentalists have traditionally fallen along opposing lines arguably due to seemingly incompatible values and fundamental differences between the groups. However, the expansion of the coal seam gas (CSG) industry has resulted in outrage and opposition from farming groups, environmentalists, and communities, leading to an alliance of these “strange bedfellows”. This study explored the opposition movement to CSG in Australia with the use of techniques from social psychology to investigate whether shared values provided the common ground for the alliance. An online survey of values was conducted (N = 197) with members of the CSG opposition alliance. No evidence was found to support the hypothesis that this alliance of stakeholders is comprised of two distinct sub-groups; farmers and environmentalists. The personal values of the respondents were highly inter-compatible, and aligned with social altruism. Sub-clusters were identified which corresponded with the extent to which respondents considered the CSG industry to impact on their lives. This research challenges the appropriateness of predetermined stakeholder classifications being applied to environmental and natural resource management issues, and highlights values as a relevant social factor in the cooperation potential of oft-conflicting stakeholder groups. 相似文献
90.
Radovan Kastratovi 《The Australian journal of agricultural and resource economics》2019,63(3):620-642
This research analyses the impact of foreign direct investment on greenhouse gas emissions in the agriculture sector of developing countries. Panel data from 63 developing countries for the period 2005 to 2014 was used to estimate a dynamic econometric model by applying a system‐generalised method of moments. The empirical results indicate a positive impact of foreign direct investment in agriculture on the carbon dioxide equivalent emission intensity in developing countries. The results provide weak support for the pollution havens hypothesis and imply the importance of coordination between foreign direct investment and environmental policies. 相似文献