Results 101 to 110 of about 7,628 (255)
Local economic resilience and economic specialization in Greece during the crisis
Regional Science Policy &Practice, EarlyView., 2023 Abstract This paper scrutinizes the issue of economic resilience, aiming to detect the existence of a systematic link with economic specialization. To this end, the paper conducts an empirical analysis at the local (i.e., municipal) level of Greece during the economic crisis period (2009–2015), providing cartographic visualizations and spatial ...
Panagiotis Artelaris +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
Thunderbird International Business Review, EarlyView.ABSTRACT This study investigates the relationship between Corporate Social Responsibility (CSR) and firm performance using panel data from 716 Chinese firms listed on the Shanghai and Shenzhen Stock from 2013 to 2019. It further examines the role of management innovation, specifically marketing intensity, in moderating the CSR–financial performance ...
Freeman Brobbey Owusu +4 more
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
doaj +1 more source
Environmental Toxicology, EarlyView.ABSTRACT Chemical pollutants pose a significant threat to marine ecosystems. Among these contaminants are trace elements and polycyclic aromatic hydrocarbons (PAH). Green turtles can be employed to evaluate the oceans' health due to their coastal habitats and exposure to multiple threats.
Camila Roberta da Silva Ribeiro +6 more
wiley +1 more source
Jingshui jishu【目的】水热碳化是一种新型的污泥减量化和相关产品增值技术，催化剂对提高污泥水热碳化反应速率和处理效果具有重要意义。【方法】分析污泥泥性和组成，以硫酸和草酸作为催化剂，研究催化剂质量分数为1%、2%、3%和4%对污泥水热碳化处理效果，污泥水热碳化产生滤液和生物炭，分别分析滤液的pH、体积及水质参数，生物炭的热力参数、元素组成、重金属等参数变化，并采用扫描电子显微镜(SEM)扫描仪、Brunauer-Emmett-Teller(BET)比表面积及孔径分析仪和热重-差示扫描量热联用(TG-
Gao Weimin +4 more
doaj +1 more source
Environmental Toxicology, EarlyView.ABSTRACT Urban coastal lagoons are highly vulnerable ecosystems increasingly affected by metal contamination, as well as multiple anthropogenic stressors. This study evaluated ecotoxicological and human health risks associated with chronic metal exposure in Nile tilapia (Oreochromis niloticus) from an anthropogenically impacted lagoon in southeastern ...
Julia Araújo Alves +8 more
wiley +1 more source
Jingshui jishu【目的】目前我国在农村生活污水治理工作方面已经取得了很大的提高与成效，但也不可避免存在许多问题，其中我国农村大量建成的单一厌氧池普遍存在氨氮去除率低的问题。【方法】对此，本文以增城区某农污站点为试点，将厌氧池改造为厌氧-好氧(AO)工艺并进行处理效果及经济分析。【结果】改造后出水氨氮的平均去除率由13.64%的提高至67.00%;化学需氧量(COD)平均去除率由63.14%提高至82.28%;悬浮物(SS)平均去除率由60.69%提升至76.15%;总磷及总氮去除率也分别达到了93.
Chen Zhihua +4 more
doaj +1 more source
ENERGY POTENTIAL FROM AGRICULTURAL RESIDUES IN TEXAS [PDF]
Resource /Energy Economics and Policy,
Patton, William P. +3 more
core