共查询到20条相似文献,搜索用时 547 毫秒
1.
2.
3.
商用车要做到节能减排,发动机的选用是关键。广汽日野历来重视环保型产品的开发,自创立以来,就一直引进及研发节能减排新技术。广汽日野700系列采用的是上海日野11升P11C发动机及日野进口13升E13C发动机,这两款发动机是日野多年的研发、制造技术并结合丰田生产模式的结晶。独创的高效燃烧室、首创的铸铁活塞,燃油喷射量、油压、喷射速率和喷射正时精确控制, 相似文献
4.
5.
正当前,节能减排已成为我国一项基本国策,已成为我国调整经济结构、转变发展方式的突破口和重要抓手。做好节能减排工作不仅是企业履行社会责任的需要,同时是企业实现可持续发展、提高核心竞争力的需要。节能减排与企业发展并不矛盾,通过"节能"可以降低消耗成本、提高生产效率,通过"减排"可以调整优化产业结构、发展新生经济。但由于节能减排工作是一个系统性、综合性很强的工作,开发和应用节能减排技术和装备仅仅是节能减排工作的一个方面。通过建立、运行和改进 相似文献
6.
无锡商业大厦集团东方汽车有限公司 《交通节能与环保》2013,(4):21-27
该项目积极推广应用绿色机电维修、绿色钣金修复、绿色涂漆、废弃物处理与回收、洗车水循环利用等先进技术,节约了能源与资源,减少了环境污染,提高了维修效率和服务质量。公司采用集约化管理,通过严格各项制度,规范维修作业行为,将5S管理落实到生产的各个环节,有效提高了员工节能环保意识,鼓励一线员工发明创新,使公司的执行力和后劲得到了极大提升,在实现经济效益的同时带来了节能减排的社会效益。 相似文献
7.
8.
9.
10.
门座式起重机在在提升货物过程中,存储了大量的势能,而在下放货物下降或停止时,货物通过机械传动设备驱动起重电机,产生再生制动现象.传统方法采用制动电阻消耗再生电能,造成电能利用效率低下.为利用这部分再生电能,采用锂电池技术能够有效利用再生电能,从而提升门座式起重机的电能利用效率,达到节能的目的.本文在分析门座式起重机电气结构特点的基础上,分析锂电池储能技术原理,并通过实际测试验证了该技术具有明显的节能效果,在传统变频调速节能的基础上进一步提升了节能空间,值得在全国港口推广应用. 相似文献
11.
开展水土流失监测是水土保持监管的重要手段。文章以广西沿海高速公路改扩建工程一期工程水土保持监测实践为例,分析了工程建设水土流失特点,介绍了水土保持监测技术和方法,并通过对工程实例监测结果的分析评价,提出了水土保持监测工作中易出现的问题及相应的解决方案。 相似文献
12.
Caspar G. Chorus 《Transportation Research Part A: Policy and Practice》2012,46(7):1003-1012
This paper studies to what extent the Logsum-measure of user benefits relates to travelers’ perceptions of choice set-desirability and choice-satisfaction. Knowing these relations is important since researchers have recently started to analyze and interpret user benefits in general – and Logsums in specific – in terms of these more behaviorally oriented notions, rather than in terms of expected utility. Participants to a stated route choice experiment were asked to indicate, after each choice made, to what extent they considered the choice set to be desirable, or to what extent they were satisfied with the chosen alternative. These measurements were correlated with Logsums that were computed for each choice situation. In addition, the paper derives a regret-based Logsum (which gives the expected regret of a choice situation) and presents a comparison with its utilitarian counterpart. Also for this regret-based Logsum, correlations with desirability- and satisfaction-ratings are computed. As a general finding, it appears that all computed correlations are rather weak. This suggests that, at least in the context of our data, the utility-based Logsum and its regret-based counterpart appear to have only a fairly weak connection with the behavioral notions of choice set-desirability and choice-satisfaction. 相似文献
13.
14.
通过研究汽车与船舶的油耗特点,结合燃油种类与CO_2排放量的关系,建立了计算公路运输与水路运输单位耗油量与单位CO_2排放量的数学模型。通过敏感性分析,研究车速或航速与载货率对车辆或船舶单位CO_2排放量的影响。以从厦门港到盐田港的干散货运输为例,做了节能减排计算分析,并将结果与用其他方法获得的结果对比。在此基础上,对公路运输与水路运输节能减排做了敏感性分析研究,可以计算出能够体现水路运输节能减排优势的临界货运量。结果表明本文中介绍的方法能够为核算、比较公路运输与水路运输的节能减排效果提供更科学的量化参考。 相似文献
15.
16.
Recent years have shown a rising popularity of the concept of resilience—both theoretically and empirically—in complex systems analysis. There is also a rising literature on resilience in the transport and spatial-economic field. The pluriform interpretation of resilience (e.g., engineering vs. ecological resilience) is related to methodological differences (e.g., stability in dynamics vs. evolutionary adaptivity). But in all cases the fundamental question is whether a complex system that is subjected to an external shock is able to recover, and if so, to which extent. The present paper [Based on presentation from cluster 6 (Accessibility) of the Nectar 2015 conference in Ann Arbour, USA.] aims to add a new dimension to resilience analysis in spatial systems, by addressing in particular the relationship between spatial accessibility at a municipality level and the resilience outcomes of the spatial system concerned. It does so by investigating to which extent accessibility of Swedish and Dutch municipalities has mitigated the local shock absorption from the recent economic recession. In our study the shock absorption capacity of municipal accessibility is estimated by analysing the relevant resilience indicators for the period concerned. In this context, conventional resilience indicators based on either multivariate complex data (in particular, the Foster Resilience Capacity Index) or employment data (in particular, the Martin Resilience-Employment Index) are confronted with spatial connectivity data based on local accessibility measures, so that geographical mobility may be regarded as one of the shock-mitigating factors. The empirical analysis is carried out for two countries which have both proven to be rather shock-resistant during the recent economic crisis, viz. Sweden and The Netherlands. Clearly, the geographical structure of these countries forms a sharp mutual contrast, viz. a spatially dispersed economy with a few distinct urban concentrations versus a spatially dense economy with one major metropolitan centre (the Randstad), respectively. Our experiments are carried out for the 290 municipalities in Sweden and 40 COROPs in The Netherlands. Our research findings show relevant and new insights into differences in the local recovery potential in Sweden and The Netherlands. 相似文献
17.
18.
19.
隧道及地下工程结构防排水技术的发展和应用 总被引:4,自引:0,他引:4
文章总结了大瑶山隧道修建以来其复合式衬砌结构防排水试验研究和应用情况,介绍了塑料防水隔离层的防水机理及各种防水型式的优缺点,提出了改进建议. 相似文献