Quantifying the Effectiveness of Various Water Conservation Techniques in Texasdoi:AWWA SOURCES555952001年5月,德克萨斯州水资源开发委员会(TWDB)选择GDS Associates,Inc.(GDS)进行一项研究,量化各种节水技术的有效性(研究).这项研究的主要目的是提供有关区域一级水资源保护战略的有效性和成本的信息.在德克萨斯州,...
aThis paper discusses the various issues that limit the water availability for non-irrigation uses and presents a model developed for one such conservation measure, i.e. intermittent water distribution systems for managing limited water resources sustainably and equitably in the urban communities. 本文...
Impervious surfaces limit infiltration of water into the soil and promote the free flow of water. For this reason, surface runoff can gain higher speeds leading to erosion of lakeshores and streambanks. Use of paving stones is a better alternative to concrete slab as it allows the water to p...
a1.3.1.3.1 Analysis. Analysis shall employ rational methods based on accepted principles of engineering mechanics and shall consider all significant sources of deformation and resistance. Assumptions of stiffness, strength, damping and other properties of 1.3.1.3 .1分析。 分析将使用根据工程学机械工的...
Groundwater contributes to 9% of India's GDP; 64% of irrigation, 85% of rural water supply and over 50% of urban water demand. Over the last decade, 54% of India's shallow wells became defunct due to declining groundwater levels and thus deep wells have been constructed. This shift to...
The aim of study is to compare various flow maldistribution quantification methods, using velocity, mass flow rate, pressure, and temperature. An experimentally validated numerical study has been prepared and a heat exchanger with 34 semi-circular channe
As a vital strategy of nutrient conservation, nutrient resorption helps desert plants to strengthen their competitiveness in the water-deficient and low-nutrient habitats (Drenovsky and Richards, 2006). In desert ecosystems, soil carbonates accumulate and soil alkalinity increases due to insufficient lea...
In this paper a qualitative case study is presented, addressing the Icelandic Nature Conservation Strategy 2004鈥 2008. The objective is to investigate the ... Edda R.H. Waagea*,Karl Benediktssona - 《Journal of Environmental Policy & Planning》 被引量: 37发表: 2010年 Effects of permafrost ...
aAlso please ask the clients submit a certificate of compliance for Toxics in packaging. 并且喜欢要求客户为含毒物递交服从证明在包装。 [translate] a水利水电工程 Water conservation water and electricity project [translate] a增加防范意识 Increase guard consciousness [translate] aKunihiro Nagataさんから...
Exergy conservation of the system as shown below(1)∑Ex˙in=∑Ex˙out+∑Ex˙des Applying the general exergy conservation to the engine system as follows:(2)∑Ex˙air+∑Ex˙fuel=∑Ex˙work+∑Ex˙exh+∑Ex˙losses+∑Ex˙des ∑Ex˙air, ∑Ex˙fuel, ∑Ex˙work, ∑Ex˙exh, ∑Ex˙losses...