共查询到20条相似文献,搜索用时 62 毫秒
1.
2.
3.
4.
5.
6.
7.
8.
9.
文章综述了水库消落带温室气体排放研究进展,水库消落带作为温室气体排放的核心地带已被证明。目前国内外对消落带的温室气体研究取得了一些成果,也有一些问题亟待解决。 相似文献
10.
《酒.饮料技术装备》2013,(6):60-64
德国学者以豪夫堡啤酒公司为样本,对生产啤酒的相关温室气体排放进行了,详细全面的分析,具有参考价值。其中有些过程可能不同于中国,但是从中我们可以看出德国人的严谨、彻底的工作作风,以及对环保的重视。 相似文献
11.
统计研究了造纸行业林纸一体化项目和其他环境会计事项的信息披露现状,并对如何建立林纸一体化项目核算体系和信息披露规范提出建议。 相似文献
12.
13.
14.
为了完善皮革企业物流管理信息化建设,制定物流管理信息化建设策略,利用信息化技术针对皮革企业物流管理进行建设。采用构建皮革企业物流管理信息系统与信息化平台的方式,提升皮革企业内部物流管理工作的整体水平及规范性,并针对信息化技术人员进行培养,可为皮革企业物流管理信息化建设的长远发展提供有力依据,强化皮革企业在市场中的核心竞争力。 相似文献
15.
16.
B. Lahart L. Shalloo J. Herron D. O'Brien R. Fitzgerald T.M. Boland F. Buckley 《Journal of dairy science》2021,104(7):8039-8049
Greenhouse gas (GHG) emissions and nitrogen (N) efficiencies were modeled for 2 genetic groups (GG) of Holstein-Friesian cows across 3 contrasting feeding treatments (FT). The 2 GG were (1) high economic breeding index (EBI) animals representative of the top 5% of cows nationally (elite) and (2) EBI representative of the national average (NA). The FT represented (1) generous feeding of pasture, (2) a slight restriction in pasture allowance, and (3) a high-concentrate feeding system with adequate pasture allowance. Greenhouse gas and N balance models were parameterized using outputs generated from the Moorepark Dairy Systems model, a stochastic budgetary simulation model, having integrated biological data pertaining to the 6 scenarios (2 GG × 3 FT) obtained from a 4-yr experiment conducted between 2013 and 2016. On a per hectare basis, total system GHG emissions were similar for both elite and NA across the 3 FT. Per unit of product, however, the elite group had 10% and 11% lower GHG emissions per kilogram of fat- and protein-corrected milk and per kilogram of milk solids (MSO; fat + protein kg), respectively, compared with the NA across the 3 FT. The FT incorporating high concentrate supplementation had greater absolute GHG emissions per hectare as well as GHG per kilogram of fat- and protein-corrected milk and MSO. The elite group had a slightly superior N use efficiency (N output/N input) and lower N surplus (N input – N output) compared with the NA group. The high concentrate FT had an inferior N use efficiency and a higher N surplus. The results of the current study demonstrate that breeding for increased EBI will lead to a general improvement in GHG emissions per unit of product as well as improved N efficiency. The results also illustrate that reducing concentrate supplementation will reduce GHG emissions, GHG emissions intensity, while improving N efficiency in the context of pasture-based dairy production. 相似文献
17.
18.
通过对我国皮革行业现状和发展趋势的分析,提出了利用计算机技术开发皮革资源信息管理系统的构想,这一系统包括硬件、软件的构成方法以及系统的基本要求和主要功能,从另一侧面提出了促进皮革工业发展的新思路、新方法。 相似文献
19.
20.
随着市场竞争的日趋激烈和客户个性化需求的发展,大规模定制生产已成为二十一世纪现代化制造企业发展的重要模式。对于中小型企业而言,原先对订单的管理方式已经无法在适应市场快速变化的需要.所以急需一种新的管理方式。在这个的信息时代,现有的订单管理信息系统已无法满足这种需要,很多中小型企业已认识到管理信息系统的重要性,希望通过订单管理信息系统对订单进行管理。 相似文献