Results 11 to 20 of about 788,988 (161)

Hydrological and chemical water regime in the catchments of Bystra and Sucha Woda, in the Tatra National Park [PDF]

Acta Scientiarum Polonorum. Formatio Circumiectus, 2018
The chemical composition of surface water and groundwater is subject to constant changes, which result primarily from meteorological factors (for instance, size and intensity of atmospheric precipitation), hydrological factors (for instance, the degree ...
Monika Sajdak, Joanna Siwek, Anna Bojarczuk, Mirosław Żelazny   +3 more
doaj   +1 more source

Chiral Water-Soluble Molecular Capsules With Amphiphilic Interiors

Frontiers in Chemistry, 2022
We present the synthesis of new chiral water-soluble dimeric capsules by the multicomponent Mannich reaction between charged amino acids (glutamic acid or arginine), resorcinarene, and formaldehyde and by subsequent self-assembly.
Arkadiusz Marek Sakowicz, Agnieszka Szumna   +1 more
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Acute toxicity of total ammonia to Macrobrachium rosenbergii postlarvae at different salinity levels [PDF]

Brazilian Journal of Biology
Nitrogen compounds, particularly ammonium, nitrite and nitrate, are a major problem in shrimp production systems. These compounds can accumulate in the aquatic environment and reach harmful or even lethal levels.
J. H. S. Motta, L. C. Santos, F. M. Dutra, A. B. Souza, M. F. Polese, L. S. Glória, A. P. Oliveira, E. L. C. Ballester   +7 more
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Hydrogeochemistry of Two Major Mid-hill Lentic Water Bodies for Irrigation of the Central Himalaya, Nepal

Environment and Natural Resources Journal, 2023
The concentration and composition of different salts in natural water bodies determine the water quality for various purposes. This study assesses the water quality of two mid-mountain lentic water bodies, Lake Phewa and Kulekhani Reservoir.
Babi Kumar Kafle, Chhatra Mani Sharma, Smriti Gurung, Nani Raut, Kumud Raj Kafle, Rita Bhatta, Lekhendra Tripathee, Rukumesh Paudyal, Junming Guo, Shichang Kang, Bed Mani Dahal   +10 more
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Speleogenesis in a lens of metamorphosed limestone and ankerite: Ochtiná Aragonite Cave, Slovakia

International Journal of Speleology, 2021
The Ochtiná Aragonite Cave (Western Carpathians) represents an unique natural phenomenon. It originated under particular lithological and hydrogeological conditions of the Ochtiná Karst in which several isolated lenses of Paleozoic crystalline limestone (
Pavel Bella, Pavel Bosák, Petr Pruner, Helena Hercman, Katarína Pukanská, Karol Bartoš, Ľudovít Gaál, Dagmar Haviarová, Peter Tomčík, Šimon Kdýr   +9 more
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Geochemical characteristics of rare earth elements in groundwater of Banji Coal Mine

能源环境保护, 2023
Rare earth elements possess stable and similar geochemical properties, making them widely utilized in the study of groundwater-aquifer interactions and geochemical processes.
DU Shaoneng, LI Haozhi, JIANG Zhaojing, CHU Chengxiang, HUANG Wendi, ZHENG Liugen*   +5 more
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Semiarid Lakes of Southwestern Siberia as Sentinels of On-Going Climate Change: Hydrochemistry, the Carbon Cycle, and Modern Carbonate Mineral Formation

Atmosphere, 2023
Towards a better understanding of factors controlling carbon (C) exchange between inland waters and atmosphere, we addressed the inorganic carbon cycle in semiarid lakes of Central Eurasia, subjected to the strong impact of on-going climate change.
Andrey Novoselov, Alexandr Konstantinov, Elizaveta Konstantinova, Yulia Simakova, Artem Lim, Alina Kurasova, Sergey Loiko, Oleg S. Pokrovsky   +7 more
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WATER CHEMISTRY IN DIFFERENTLY FERTILIZED CARP POUNDS [PDF]

Croatian Journal of Fisheries, 1997
Water chemistry in carp ponds - fry carp ponds, each of them 2.5 acres big and 1.5 meter deep, as well as in inflow water in the ponds was researched. Fourty days old carp fingerlings were bread in the ponds; stock density of the three day old larvae was
Krešimir Fašaić, Biserka Stojić, Ljubica Debeljak, Vlado Gačić   +3 more
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Synthesis of limnological data from lakes and ponds across Arctic and Boreal Canada

Arctic Science, 2018
A compilation of published and new limnological data from 1489 shallow lakes and ponds in northern Canada, sampled between 1979 and 2009, revealed significant patterns that correlated with landscape features and climate.
Stefana Aurora Dranga, Simon Hayles, Konrad Gajewski   +2 more
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Hydrogeochemical characteristics and environmental significance of travertine landscape in Muji area

Shuiwen dizhi gongcheng dizhi
Travertine is a type of karst deposit widely distributed worldwide. Groundwater in karst areas is the main component of global water resources, providing a large number of ecological services and urban water supply.
Rui AN, Miao SUN, Yiwei ZHANG, Bin LI, Wenpeng LI, Kun LIU   +5 more
doaj   +1 more source