Results 91 to 100 of about 78,527 (268)
Veterinary Record, EarlyView.Abstract Background This study describes the development of a data landscape analysis protocol that identifies and characterises animal health data sources to support key regulatory activities throughout the life cycle of veterinary medicines. Methods The protocol included: development of criteria to identify data sources; selection of variables to ...
Ewa Pacholewicz +4 more
wiley +1 more source
“One Water”理念下南方多雨地区分流制污水管网提升改造思路
Jingshui jishu【目的】本文围绕“改善污水管网质量、提高污水处理厂进水浓度、改善城市水环境”的目标，针对南方多雨地区A城市水环境质量差的现象，分析得出主要问题是污水系统不健康。【方法】同时通过数据分析、水质调查、污水溯源、闭路电视(CCTV)管道内窥检测、水力模型模拟等方法分析了造成问题的主要成因：污水管网整体质量差、雨污混接明显，城市内涝导致涝水进入污水系统，污水管网的良好运维机制尚未建立等。【结果】提出了全域整治、雨污统筹、顶层保障等系统性对策，通过增加污水泵站降低末端污水管道埋深 ...
WANG Xianping, XIE Mingli
doaj +1 more source
Multimedia Waste Disposal Optimization under Uncertainty with an Ocean Option [PDF]
Many communities face a waste management crisis. An increase in waste generation and decline in available landfill capacity have led to rapid increases in waste management costs.
Jin, Di
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International Journal of Urban and Regional Research, EarlyView.Abstract The Beqaa Valley in Lebanon has become increasingly polluted, and residents are attributing illness to improper waste disposal and dumping. This article explores local epistemologies of pollution’s causes and effects in three films, which were researched and produced by local residents of Bar Elias, a small town in the Beqaa, which has rapidly
Hannah Sender +2 more
wiley +1 more source
在线固相萃取-超高效液相色谱-紫外法同时测定水中的3种氯酚类化合物
Jingshui jishu【目的】文章采用在线固相萃取(online SPE)装置与超高效液相色谱-紫外检测器(UPLC-TUV)连接，建立了一种能同时测定原水和饮用水中3种氯酚类化合物(2, 4-二氯酚、2, 4, 6-三氯酚和五氯酚)的快速检测方法。【方法】样品经过滤膜简单过滤处理后，只需取5 mL样品即可直接上机检测。通过online SPE自动切换六通阀的方式，实现2根在线固相萃取柱Oasis HLB Direct Connect HP(20μm, 2.1 mm×30 mm)依次对样品进行富集和净化，
BI Fengli +4 more
doaj +1 more source
International Journal of Urban and Regional Research, EarlyView.Abstract Africa is recognized as the final frontier for urbanization and capitalism. Following a long wave of massive loans to promote state‐led developments, small private foreign and local developers are transforming the urban landscape on the outskirts of Luanda, forging partnerships with Angola's national and local governments and developing an ...
Higor Carvalho
wiley +1 more source
Jingshui jishu【目的】大型城市的排水设施运行模式趋于复杂，对于多节点入流污水厂，传统人工调度模式很难满足动态管理需求，需要研究智慧调度方式，保障排水设施的平稳运行。【方法】本文以上海某大型排水系统为例，通过分析末端收集历史数据，结合运行水位预设污水处理厂处理能力，根据实时来水数据动态调节末端各节点提升设施开泵情况，通过遗传算法对控制方程进行参数寻优，在所有世代中选出最高得分个体作为最终参数组合，确定雨天进厂流量策略。【结果】采用该优化策略后使污水厂处理水量更加平稳 ...
CHEN Yulin, ZHANG Xin
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Pricing Water - a Tool for Natural Resource Management in the Onkaparinga Catchment [PDF]
Consultancy Report 2 for the Onkaparinga Catchment Water Management Board. This second report focuses on pricing water to manage the catchment water resources in a sustainable manner.
Darla Hatton MacDonald +2 more
core
Ammonia based sanitation technology [PDF]
, 2007 Water-borne sanitation of toilet waste is not a viable option for the estimated 2.6 billion people that lack improved sanitation throughout the world.
Nordin, Annika
core
International Journal of Urban and Regional Research, EarlyView.Abstract Foregrounding the role of finance, this article examines the historical production and future trajectory of the urban water crisis in Mombasa. Drawing on archival research and contemporary fieldwork, it traces how principles of full cost recovery—institutionalized during the colonial period and later reworked through postcolonial ...
Joe Williams
wiley +1 more source