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Yaru Guo, Tian-Chyi Jim Yeh and Yonghong Hao
Karst aquifers are prominent sources of water worldwide; they store large amounts of water and are known for their beautiful springs. However, extensive groundwater development and climate variation has resulted in a decline in the flow of most karst spr...
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Katarzyna Wozniak
Pág. 5 - 6
Dear Readers,I have the pleasure of presenting to you the second issue of the research journal entitled ?Research Papers in Economics and Finance? (REF), published by the Faculty of Economics at Poznan University of Economics and Business. The first...
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Ewa Stanczyk-Mazanek, Longina Stepniak and Urszula Kepa
In this paper, we discuss the effect sewage sludge (SS) application has on the contamination of polycyclic aromatic hydrocarbons in fertilized soils and groundwater. Morver, the contents of these compounds in plant biomass was analyzed. For six months, c...
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Kamil Albert Homski
Pág. 37 - 44
The first aim of this study was to measure the efficiency of the R&D sector in the EU countries. The findings have indicated that the sector?s efficiency was different in particular countries. It was more than three times higher in the most efficient...
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Yeon Moon Choo, Deok Jun Jo, Gwan Seon Yun and Eui Hoon Lee
Frequent localized torrential rains, excessive population density in urban areas, and increased impervious areas have led to massive flood damage that has been causing overloading of drainage systems (watersheds, reservoirs, drainage pump sites, etc.). F...
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Bright Kwakye-Awuah, Baah Sefa-Ntiri, Elizabeth Von-Kiti, Isaac Nkrumah and Craig Williams
Ground water samples from residential homes in three Regions of Ghana: Central, Greater Accra and Ashanti, were analyzed for iron and manganese contamination. The samples were exposed to characterized zeolite Y by X-ray diffraction, scanning electron mic...
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Dorota Papciak, Barbara Tchórzewska-Cieslak, Andzelika Domon, Anna Wojtus, Jakub Zywiec and Janusz Konkol
The article presents changes in the quality of tap water depending on time spent in installation and its impact on the creation of biofilms on various materials (polyethylene (PE), polyvinyl chloride (PVC), chrome-nickel steel and galvanized steel). For ...
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Vikram Mohite, Vibha Bhandari
Pág. 106 - 120
AbstractThe study investigates the financial market?s response during the period of last nine months starting from the day when first COVID-19 case was confirmed in India. This paper attempts to gauge the impact of rise in COVID-19 confirmed number of ca...
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Peter Jarvis, Olivier Autin, Emma H. Goslan and Francis Hassard
Ultraviolet light-emitting diodes (UV-LEDs) have recently emerged as a viable technology for water disinfection. However, the performance of the technology in full-scale drinking-water treatment systems remains poorly characterised. Furthermore, current ...
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Young Hwan Choi and Joong Hoon Kim
This study compares the performance of self-adaptive optimization approaches in efficient water distribution systems (WDS) design and presents a guide for the selection of the appropriate method employing optimization utilizing the characteristic of each...
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