Results 111 to 120 of about 78,097 (269)
The new poor law and the health of the population of England and Wales
The Economic History Review, EarlyView.Abstract We estimate the impact of reductions in poor law expenditure on rural life expectancy and mortality rates in England and Wales following the 1834 Poor Law Amendment Act. Given the scale of cuts imposed, our estimates imply 8–10 per cent increases in mortality at ages 1–4 years and 2–4 per cent falls in rural expectation of life at birth.
David Green +3 more
wiley +1 more source
Jingshui jishu【目的】作为重要水资源之一，地下水水源在城市供水系统中发挥着重要作用，随着人们对高品质饮用水需求的不断提升，地下水硬度较高问题受到关注。为提升居民的饮用体验和生活幸福感，许多现状水厂通过新增深度处理工艺，降低水厂出水硬度以提升供水水质。【方法】文章对某地下水水厂采用双膜法去除硬度的相关设计要点展开探究，包括提标改造工艺、工艺流程的制定，设计规模、出水指标等主要设计参数的确定，以及针对改造重难点提出的解决措施。【结果】超滤膜、纳滤膜前分别设置200μm自清洗过滤器、5μm保安过滤器 ...
Wang Guodong +3 more
doaj +1 more source
Local Networks and New Business Formation
Journal of Economics &Management Strategy, EarlyView.ABSTRACT New business formation is a key driver of regional transformation and development. While we know that a region's attractiveness for new businesses depends on its resources, infrastructure, and human capital, we know little about the role of local business networks in promoting or impeding the birth of new firms.
Lena Füner +3 more
wiley +1 more source
基于高分辨质谱的靶向/拟靶向联合评估原水中挥发性有机物的环境风险
Jingshui jishu【目的】本文旨在基于高分辨质谱靶向定量与拟靶向筛查相结合的分析方法，系统分析广东省某水源河段在枯水期、平水期和丰水期水体中挥发性有机物(VOCs)的污染特征，并评估其环境风险。【方法】本文采用吹扫捕集结合气相色谱-三重四极杆串联质谱仪定量分析水中60种VOCs,通过顶空提取结合气相色谱-四级杆飞行时间质谱建立了水体中196种VOCs的拟靶向筛查方法，以此实现对研究河段不同水期VOCs的全面检测与量化。【结果】靶向定量分析检出14种VOCs,其质量浓度为0.001～16.363μg ...
Huang Donglong +3 more
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
core +1 more source
Scotland Chikwawa Health Initiative - improving health from community to hospital [PDF]
, 2008 The Scotland Chikwawa Health Initiative is a three year programme funded by the Scottish Executive International Development Fund which aims to achieve measurable reductions in major causes of disease and death in four villages within the Chikwawa ...
Grimason, Anthony +6 more
core
Journal of Fish Biology, EarlyView.Abstract This work aimed to investigate the distribution and occurrence of fish species along the São Francisco Falso Braço Norte (SFFBN) River basin, a tributary of the Middle Paraná River basin now artificially connected to the Upper Paraná ecoregion, to evaluate how such connectivity may affect the biogeographic distribution and regional composition
Lucas E. P. Kampfert +5 more
wiley +1 more source
Jingshui jishu【目的】浙江省某污水处理厂目前以乙酸钠作为碳源，为了节省运行成本，亟待选择性价比高的替代碳源。【方法】本文选择安全性好、成本低的5种复合碳源作为小试样品同乙酸钠进行小试试验，筛选出最适合污水处理厂微生物的复合碳源样品，通过在生化池开展复合碳源与乙酸钠的对比投加工程应用试验，主要从碳源投加量、对水质指标的影响、污泥浓度变化和经济效能等方面分析，评价筛选出的复合碳源实际应用效果。【结果】小试试验3号碳源的脱氮效果优于其他碳源，选择其进行工程应用试验；工程应用试验中，在进水水质稳定 ...
Ding Liang
doaj +1 more source
Do carbon prices affect stock prices?
Journal of Financial Research, EarlyView.Abstract We explore how carbon pricing affects corporate financial performance during Phase 3 of the European Union Emissions Trading Scheme (EU ETS). We find that the relationship between carbon prices and stock prices depends critically on the proportion of verified emissions covered by freely allocated ETS allowances: For firms with a greater ...
Patrick Bolton +2 more
wiley +1 more source
Jingshui jishu【目的】针对生活垃圾焚烧发电厂渗滤液高氨氮、难处理的特性，本文探究了负压精馏脱氮技术的应用效果与优化策略，以期为工程应用提供理论支持和技术指导。【方法】本试验构建了脱碳-脱氮双塔协同的负压精馏试验系统，以江苏省某焚烧厂厌氧出水(氨氮质量浓度为1 600～2 200 mg/L)为对象，系统考察温度(80～100℃)、压力(-0.05～-0.03 MPa)、pH值(8.0～10.5)等操作参数对氨氮去除效果的影响，并通过正交试验优化工艺参数。【结果 ...
Gu Chuang +5 more
doaj +1 more source