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Tytuł:
Long-term cyanobacterial dynamics as related to physicochemical water parameters in a restored urban lake
Autorzy:
Zebek, E.
Powiązania:
https://bibliotekanauki.pl/articles/1189822.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
Cyanoprokaryota
dynamics
physicochemical parameter
water parameter
urban lake
lake
restoration
nutrient
Opis:
The aim of this study has been to determine the response of cyanobacteria to the lake protection and restoration measures implemented in the littoral zone of an urban lake called Jeziorak Mały. The first investigations were conducted in 1996 and were resumed in 1997-2003, 2005 and 2013, following the installation of a separator and the creation of stone accumulation sites. Long-term changes in phytoplankton cyanobacterial proportions, abundance and biomass were analyzed in relation to environmental conditions at the sites in the littoral zone (S – separator pipes, K – sites with stones and R – sites with macrophytes). Relationships between cyanobacteria and water chemistry variables were analyzed by calculating the Spearman’s rank correlation coefficient, and then with canonical correspondence analysis (RDA). The results provided evidence that water temperature, total nitrogen and iron concentration (S, R), but also PO43- in spring (S,K) were the principal factors affecting cyanobacterial development. There was a significant decrease in the share, abundance and biomass of cyanobacteria coinciding with a decrease in conductivity and PO43- following the onset of lake restoration efforts. Changes in dominant species from the ones typical in hypertrophic lakes to those typically found in eutrophic lakes took place during the research. The modifications indicated a strong initial response of cynaobacteria to the restoration measures, but the situation stabilized in 2013, when cyanobacteria returned to their previous average levels. This suggests that the introduction of lake restortation measures contributed to the lake’s improved water quality and they should be retained for efficient lake management in the future.
Źródło:
Journal of Elementology; 2016, 21, 1; 269-282
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Long-term cyanobacterial dynamics as related to physicochemical water parameters in a restored urban lake
Autorzy:
Zebek, E.
Powiązania:
https://bibliotekanauki.pl/articles/16004.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
Cyanoprokaryota
dynamics
physicochemical parameter
water parameter
urban lake
lake
restoration
nutrient
Opis:
The aim of this study has been to determine the response of cyanobacteria to the lake protection and restoration measures implemented in the littoral zone of an urban lake called Jeziorak Mały. The first investigations were conducted in 1996 and were resumed in 1997-2003, 2005 and 2013, following the installation of a separator and the creation of stone accumulation sites. Long-term changes in phytoplankton cyanobacterial proportions, abundance and biomass were analyzed in relation to environmental conditions at the sites in the littoral zone (S – separator pipes, K – sites with stones and R – sites with macrophytes). Relationships between cyanobacteria and water chemistry variables were analyzed by calculating the Spearman’s rank correlation coefficient, and then with canonical correspondence analysis (RDA). The results provided evidence that water temperature, total nitrogen and iron concentration (S, R), but also PO43- in spring (S,K) were the principal factors affecting cyanobacterial development. There was a significant decrease in the share, abundance and biomass of cyanobacteria coinciding with a decrease in conductivity and PO43- following the onset of lake restoration efforts. Changes in dominant species from the ones typical in hypertrophic lakes to those typically found in eutrophic lakes took place during the research. The modifications indicated a strong initial response of cynaobacteria to the restoration measures, but the situation stabilized in 2013, when cyanobacteria returned to their previous average levels. This suggests that the introduction of lake restortation measures contributed to the lake’s improved water quality and they should be retained for efficient lake management in the future.
Źródło:
Journal of Elementology; 2016, 21, 1
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nature valuation of plant communities in the Zagorow polder including water content parameters
Autorzy:
Kryszak, J.
Kryszak, A.
Strychalska, A.
Przybyla, C.
Powiązania:
https://bibliotekanauki.pl/articles/790609.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
nature
plant community
Warta River
Warta valley
water content
water parameter
moisture
natural value
synanthropization
Opis:
Geobotanical studies conducted in spring in 2011–2012 in the Zagórów polder washland, covered by the ecological restoration programme, provided assessment of current nature value of plant communities and indicated potential directions of their further transformations as a result of changes in habitat water content levels. Based on the analyses of 77 relevés of 50–100 m2 each, prepared following the Braun-Blanquet method, water levels were assessed by phytoindication using moisture indicator values (F) according to Ellenberg et al. (1992). Moreover, nature value of vegetation was assessed based on the botanical structure, geo-historical spectrum, life form structure as well as the nature valuation index in the 10-point scale according to Oświt (2000). Based on relevés the area was valuated using the point score method according to Mahon & Miller (2003). An attempt was made to indicate potential directions of changes in vegetation, based on the determination of dependencies between certain parameters assessing its current condition and habitat conditions. Habitat water content connected with the supply of water through a network of culverts, geomorphology of the area and land use, affects the distribution of phytocenoses in the polder and their considerable diversity, which was confirmed by the identification of 19 plant communities from six phytosociological classes. Further maintenance of water relations and land use results in the transformation of plant communities: in the vicinity of culverts – towards the class Phragmitetea, in swamps and around small water bodies – towards communities of the classes Salicetea purpurea or Alnetea glutinosae, at longer distances from culverts in leveled and agriculturally utilised areas – towards the orders Trifolio fragiferae-Agrostietalia stoloniferae and Molinietalia, while in areas at valley margins the succession progresses towards communities of the class Nardo-Callunetea.
Źródło:
Steciana; 2014, 18, 2
1689-653X
Pojawia się w:
Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effects of physical-chemical water parameters on the Nymphaeion alliance development in northwestern Serbia
Autorzy:
Dzigurski, D.
Ljevnaic-Masic, B.
Nikolic, L.
Powiązania:
https://bibliotekanauki.pl/articles/59239.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
physicochemical parameter
water parameter
Nymphaeion alliance
development
Nymphaeetum albae
Nymphaeetum albo-luteae stand
Nymphoidetum peltatae
Trapetum natantis association
phytocoenosis
Serbia
Opis:
Nymphaeion alliance vegetation is dominant floating-leaved vegetation in the Danube–Tisza–Danube hydrosystem in northwestern Serbia and comprises Nymphaeetum albae, Nymphaeetum albo-luteae, Nymphoidetum peltatae and Trapetum natantis associations. Comparative analysis of physical-chemical water parameters on localities where these – in most parts of Europe endangered and vulnerable stands – develop showed that most phytocenoses are associated with specific habitat conditions. Of the analyzed water properties, the factors that cause Nymphaeion alliance phytocenoses differentiation are primarily pH, alkalinity and COD-MnO4. Formation of the Nymphaeetum albae stands is significantly associated with the highest values of pH, COD-MnO4 and alkalinity, and the lowest nitrate, nitrite, dissolved and the total phosphorus content values, in comparison to the other studied associations. Nymphoidetum peltatae stands develop in waters characterized by the lowest pH and COD-MnO4, low alkalinity, and the highest nitrate and nitrite values in relation to the other analyzed phytocenoses. Trapetum natantis stands, on the other hand, prefer the warmer sections of the canal network, neutral pH, and the highest values of BOD5, dissolved and total phosphorus. Habitat conditions in which Nymphaeetum albo-luteae stands develop are of the widest range in comparison to other investigated phytocenoses.
Źródło:
Acta Societatis Botanicorum Poloniae; 2014, 83, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geochemical and acoustic evidence for the occurrence of methane in sediments of the Polish sector of the Southern Baltic Sea
Autorzy:
Brodecka, A.
Majewski, P.
Bolalek, J.
Klusek, Z.
Powiązania:
https://bibliotekanauki.pl/articles/48640.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
methane
sulphate concentration
hydrogen sulphide
sediment
Baltic Sea
marine sediment
shallow sea
organic matter decomposition
water parameter
acoustic property
Źródło:
Oceanologia; 2013, 55, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of environmental factors on the diversity and abundance of malacofauna of water bodies of different stability: the floodplain of the Bug River
Autorzy:
Jurkiewicz-Karnkowska, E.
Powiązania:
https://bibliotekanauki.pl/articles/83622.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
Tematy:
environmental factor
diversity
abundance
malacofauna
water body
stability differentiation
flood plain
Bug River
2007-2009 period
mollusc
bottom deposit
macrophyte
oxygen content
species number
population density
water parameter
chemical parameter
Źródło:
Folia Malacologica; 2012, 20, 1
1506-7629
Pojawia się w:
Folia Malacologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis and assessment of technological processes of the Miedwie Lake surface water treatment plant for the city of Szczecin
Analiza i ocena procesów technologicznych stacji uzdatniania wody powierzchniowej z jeziora Miedwie dla miasta Szczecina
Autorzy:
Wira, J.
Wira, D.
Powiązania:
https://bibliotekanauki.pl/articles/84845.pdf
Data publikacji:
2005
Wydawca:
Akademia Pomorska w Słupsku
Tematy:
technological process
Lake Miedwie
surface water
water treatment plant
Szczecin city
protection zone
lake water
tributary
raw water
clean water
water parameter
water analysis
water temperature
chloride
chemical oxygen demand
oxidizability
pH reaction
alkalinity
carbon dioxide
Opis:
Miedwie Lake is the biggest post-glacial lake of the West-Pomeranian Voievodship. At the same time it is the fifth of the largest lakes in Poland. As regards the geographical situation, Miedwie Lake is situated centrally between three big agglomerations i.e. Szczecin, Stargard Szczecinski and Pyrzyce (Fig. 1). The lake lies on the territory of three municipalities: Pyrzyce and Warnice in the District of Pyrzyce as well as Stargard Szczecinski in the District of Stargard (Rozmiarek 1983, Szyper 1990). At the moment, the reservoir is characterised with the regular, prolonged shape resembling an ellipse. Banks are shallow, regular and sometime very wet. The lake has the belt of the nearshore reaching locally tens metres far from the lake bank, what is the reason, together with the fact that the wind blows always here, that it is convenient for practising the various kinds of water sports. The lake area amounts to 3 527 ha; maximal depth – 43.8 m; average depth – 19.3 m; water capacity – 681.7 mln m3; shore-line length – 38.8 km; water level datum 14.1 m above sea level; maximal width 3.16 km; maximal length 16.2 km. The lake’s bottom is the lowest situated area on the territory of Poland.
Ujecie wody „Miedwie” powstało w roku 1976. Do tego czasu wody jeziora odpowiadały pierwszej klasie czystości. Jednakże jakość wody zaczęła się pogarszać już po rozpoczęciu eksploatacji ujęcia, dochodząc aż do poziomu trzeciej klasy czystości. Przyczyną był brak oczyszczalni oraz PGR-y. Zanieczyszczenie zbiornika powodowało masowe śniecią ryb (siei miedwiańskiej), przy dnie pojawił się siarkowodór, masowo zakwitały glony. Dalsze pogarszanie się stanu jeziora groziło zamknięciem ujęcia wody oraz wyniszczeniem życia biologicznego w zbiorniku, jak również wokół niego. Spadek jakości wód jeziora spowodowany był kilkoma czynnikami: rolnictwo, baza rosyjska w Kluczewie, turystyka, dopływy jeziora, biomanipulacja wodami Miedwia.
Źródło:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2005, 09
1643-0115
Pojawia się w:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Waves, currents and sea level variations along the Letipea - Sillamäe coastal section of the Southern Gulf of Finland
Autorzy:
Suursaar, U.
Powiązania:
https://bibliotekanauki.pl/articles/48913.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
wave
variation
hydrodynamic condition
measurement
Doppler current prolifer
calibration
semi-empirical hindcast
water parameter
upwelling
coastal jet
climate change
Baltic Sea
Letipea-Sillamae coastal section
Finland Gulf
Opis:
Variations in the hydrodynamic conditions were studied on the basis of 336 days of measurements with a Doppler current profiler. With wave data as a calibration reference, a semi-empirical hindcast of wave parameters is presented in the fetch- limited near-shore area for the period 1966–2008. A resultant 4–6 cm s−1 westward current dominated along the coast. Occasional fast sub-surface westward currents under modest wind forcing, as well as asymmetrical vertical profiles for westward and eastward currents indicated the influence of upwelling-related baroclinic coastal jets. The average frequency of upwelling was estimated at 17%; some of the events were identified in near-homothermic winter conditions on the basis of salinity and multi-layer flow records. While the mean sea level trend at Narva-Jõesuu roughly approximated the global estimates for 1899–2009, the annual maximum sea level increase was 5–8 mm yr−1. Both mean and maximum wave heights declined as a result of decreasing winds from the north.
Źródło:
Oceanologia; 2010, 52, 3; 391-416
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Content of the Label Paper and the Variation of Physico-Chemical Parameters in Bottled Water in Kosovo
Autorzy:
Çadraku, Hazir
Powiązania:
https://bibliotekanauki.pl/articles/2202226.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
water quality
bottled water
physicochemical parameter
Kosovo
Opis:
Water is a vital resource for the existence of mankind and all ecosystems on Earth. Before using it, it must be ensured that water is of good quality, within the hygienic-sanitary norms for human consumption. In recent decades, the supply of drinking water has been supplemented with the water bottled in glass and plastic bottles, which is found everywhere in the market of the Republic of Kosovo. This paper deals with the content of the label paper and the variation of physico-chemical parameters of bottled water which is extracted, analyzed, processed, filled, packaged and distributed on the market of the Republic of Kosovo and beyond as a product for consumption. i.e. In this paper 20 brands of groundwater (types of water) produced and packaged in the territory of Kosovo.
Źródło:
Journal of Ecological Engineering; 2022, 23, 11; 122--131
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Environmental Protection and Improvement of Water Quality as a Factor in the Development of Tourism in the Erenik River
Autorzy:
Gashi, Bardha
Kuqi, Beke
Dreshaj, Adem
Powiązania:
https://bibliotekanauki.pl/articles/24201792.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
parameter
river
urban discharge
water analysis
water quality
Opis:
This paper examines the impact of urban discharges on the water quality of the Erenik River in the city of Gjakova, Kosovo which is the most of key factor in developing the tourism. The primary goal of this project-based research was to provide results through water analysis in order to show the impact of urban discharges on the water quality for the tourists coming. The research was carried out by taking water samples at the entrance and exit of the Erenik River, while the measured parameters of the analyses were: temperature, pH value, electrical conductivity, turbidity, permanganates, phosphorus; and chlorides. Due to the conditions, measurements were not performed for: biological and chemical expenditure, dissolved oxygen, and alkalinity of the water. In order to achieve reliable results, the experimental research model was used, applying the techniques and methods of water analysis during the period of November-December 2021. The analyzed water result and the final findings showed that urban wastes affect the water quality, in particular the pollution from the discharges in the river potentiating the condition in which the Erenik River is found.
Źródło:
Journal of Ecological Engineering; 2023, 24, 3; 333--340
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of water well with circulating treatment
Razvitie skvazhiny s cirkuljacionnojj obrabotkojj
Autorzy:
Kayastha, K.
Powiązania:
https://bibliotekanauki.pl/articles/793334.pdf
Data publikacji:
2016
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
water well
construction
ground water
physical modelling
hydraulic parameter
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2016, 16, 4
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of climate change on the Curonian Lagoon water balance components, salinity and water temperature in the 21st century
Autorzy:
Jakimavicius, D.
Kriauciuniene, J.
Sarauskiene, D.
Powiązania:
https://bibliotekanauki.pl/articles/47688.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
climate change
Curonian Lagoon
shallow water
water balance
water temperature
water salinity
coastal environment
meteorological parameter
Źródło:
Oceanologia; 2018, 60, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The trophic state of the Vistula Lagoon: an assessment based on selected biotic and abiotic parameters according to the Water Framework Directive
Autorzy:
Nawrocka, L.
Kobos, J.
Powiązania:
https://bibliotekanauki.pl/articles/48847.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
abiotic parameter
biomass
biotic parameter
chemical feature
eutrophication
functional group
physical feature
phytoplankton
surface water
trophic status
Vistula Lagoon
water body
water classification
Water Framework Directive
Opis:
The aim of the study was to determine the trophic state of the Vistula Lagoon in 2007–2009. The analysis of various trophic state indices, abiotic parameters and different water classifications indicated the eutrophy and even advanced hypereutrophy of the lagoon waters. The composition, abundance and biomass of phytoplankton likewise reflect the eutrophic nature of this water body. For this lagoon, Reynold’s functional groups of phytoplankton were used as an indicator of eutrophication for the first time. The dominant phytoplankton organisms in the surface waters belong to 8 functional groups: S1, X1, F, J, K, H1, LO, M. Some key concepts of the EU Water Framework Directive were implemented in this study.
Źródło:
Oceanologia; 2011, 53, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of Water Quality Index of Selected Water Bodies in Warri, Delta State, Nigeria
Autorzy:
Ama, Ibiam Ntachiobi
Ebichime, Nwajei Godwin
Agbaire, Patience Odafe
Verla, Andrew Wirnkor
Powiązania:
https://bibliotekanauki.pl/articles/1112889.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
arithmetic index
physicochemical parameter
water quality index (WQI)
Opis:
Water Quality index indicating the water quality in terms of index number, offers a useful representation of overall quality of water for public or for any intended use, as well as in pollution abatement programmes and in water quality management. The present study was carried out to determine the Water Quality Index (WQI) of selected rivers in Warri, Delta State, using fourteen physicochemical parameters and on the basis of weighted Arithmetic Index in order to access the suitability of this water for consumption, recreation and other purposes. The parameters were measured monthly for one year at the six selected water bodies. In this study, WQI was determined by the analysis-on the basis of various physicochemical parameters such as pH, chlorides, electrical conductivity, dissolved oxygen, biochemical oxygen demand, total dissolved solid, total suspended solids, chlorides, sulphates, chemical oxygen demand, oil/grease. Result obtained for the different sampling sites were found to fall within the WQI classifications - poor water (100-200) to unsuitable water or unfit (>300). There is, therefore, the need to periodically assess these water bodies to ensure the quality is suitable for the intended purpose.
Źródło:
World News of Natural Sciences; 2018, 16; 42-52
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Water Quality of Gatal Lake, Kotawaringin Lama, Central Kalimantan
Autorzy:
Tyas, Desi Susilaning
Soeprobowati, Tri Retnaningsih
Jumari, Jumari
Powiązania:
https://bibliotekanauki.pl/articles/1839202.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
Gatal Lake
water quality
physical-chemical parameter
STORET
Opis:
Gatal Lake is located in the Kotawaringin Lama District, West Kotawaringin Regency, Central Kalimantan, Indonesia. The government and the surrounding communities use Gatal Lake for recreation, irrigation, livestock, and fisheries. Geographically, Gatal Lake, is close to oil palm plantations and palm oil processing factories that contributed to water pollution, especially the pollutants originating from plantation activities in the form of largescale use of fertilizers and pesticides. This study aimed to determine the status of the water quality of Gatal Lake, Kotawaringin Lama based on the physicochemical parameters. The samples from five stations were analyzed based on the following parameters: temperature, TDS, TSS, pH, BOD, COD, DO, nitrate, nitrite, phosphate, Pb, Cd, H2S, oil and grease, detergent, and phenol. The study was conducted using a purposive sampling method and determining the status of water quality based on Government Regulation No. 82/2001. The results of the physicochemical analysis of Gatal Lake showed that the water quality parameters which exceeded the water quality standards, are BOD (6.94 to 8.65 mg L), COD (9.58 to 15.7 mg/L), and DO (4.20 to 5.10 mg/L), while the parameters that did not exceed the water quality standards for Class I, II, III, and IV are temperature, TDS, TSS, pH, nitrate, nitrite, phosphate, Pb, Cd, H2S, oils and fats, detergents and phenols. On the basis of the STORET method, the water quality of Gatal Lake for Class I, II, and III are included in the highly polluted category, and for Class IV is in the moderate category.
Źródło:
Journal of Ecological Engineering; 2021, 22, 3; 99-110
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rotifer trophic state indices as ecosystem indicators in brackish coastal waters
Autorzy:
Gutkowska, A.
Paturej, E.
Kowalska, E.
Powiązania:
https://bibliotekanauki.pl/articles/49197.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
rotifer
trophic status
chemical parameter
physical parameter
salinity
brackish water
coastal water
indicator species
zooplankton
Vistula Lagoon
environment condition
biological monitoring
Źródło:
Oceanologia; 2013, 55, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Physical-chemical and biological parameters of two neighbouring post-exploitation clay-pits
Autorzy:
Kuczynska-Kippen, N.
Nagengast, B.
Celewicz-Goldyn, S.
Powiązania:
https://bibliotekanauki.pl/articles/26203.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
water reservoir
plankton structure
small reservoir
physical parameter
chemical parameter
biological parameter
post-exploitation clay-pit
aquatic vegetation cover
Źródło:
International Agrophysics; 2006, 20, 3
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of long-term agricultural land use on soil properties along the Austrian-Hungarian border. Part I. Soil mineralogical, physical and micromorphological parameters
Autorzy:
Rampazzo, N.
Rajkai, K.
Blum, W.E.H.
Varallyay, G.
Ubleis, T.
Powiązania:
https://bibliotekanauki.pl/articles/25710.pdf
Data publikacji:
1999
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
soil structure
soil degradation
physical parameter
mineralogical parameter
agricultural practice
micromorphological parameter
soil property
soil aggregate
water retention
Źródło:
International Agrophysics; 1999, 13, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Obrabotka parametrov chastic vodnykh rastvorov pri intensifikacii raboty oborotnykh sistem vodosnabzhenija
Autorzy:
Movchan, S.
Powiązania:
https://bibliotekanauki.pl/articles/77013.pdf
Data publikacji:
2014
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
processing
aqueous solution
water supply system
mechanical parameter
hydraulic parameter
optical method
Doppler signal amplitude
Źródło:
Motrol. Motoryzacja i Energetyka Rolnictwa; 2014, 16, 6
1730-8658
Pojawia się w:
Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Accuracy and parameter estimation of elastic and viscoelastic models of the water hammer
Autorzy:
Weinerowska-Bords, K.
Powiązania:
https://bibliotekanauki.pl/articles/1933158.pdf
Data publikacji:
2007
Wydawca:
Politechnika Gdańska
Tematy:
water hammer
unsteady flow in pipelines
parameter estimation
numerical methods
Opis:
The water hammer problem is considered, one of the most important questions of unsteady flows in pipelines. Although first mentioned in the scientific literature more than a hundred years ago and widely analyzed since in many research centers, the problem is not fully recognized yet. It may be considered on two levels: practical and theoretical. In both cases, several difficulties arise rendering the results less than fully satisfactory. The most important difficulties are the proper mathematical description of the phenomenon, the choice of the solution method, estimation of the model parameters and numerical aspects of solving the equations governing the phenomenon's run. They are presented in the paper and typical approaches to their solution are discussed. Numerical solutions are compared with experimental results.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2007, 11, 4; 383-395
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessing Water Quality of Kufranja Dam (Jordan) for Drinking and Irrigation: Application of the Water Quality Index
Autorzy:
Abualhaija, Mahmoud M.
Mohammad, Alsharifa-Hind
Powiązania:
https://bibliotekanauki.pl/articles/1955562.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
Kufranja Dam
Jordan
physicochemical parameter
water quality index
drinking
irrigation
Opis:
The current study was undertaken to assess the physicochemical quality of the Kufranja dam (KD) surface water in northern Jordan during the summer and winter seasons [2019]. The samples were analyzed for temperature, pH, dissolved oxygen, conductivity, major cations, major anions, and heavy metals. Most of the physicochemical parameters exhibited a similar spatial distribution, where the maximum concentrations were observed at the dam’s entrance, while the minimum concentrations were recorded at the dam’s end. This indicates that the factors affecting their occurrence and distribution are the same, including natural discharges from the surrounding catchment areas, weathering products, agricultural activities, and wastewater effluents that enter the dam via Wadi Kufranja. All the physicochemical parameters and heavy metals in KD water lie below the maximum permissible levels of the Jordanian and international standards for drinking and irrigation, except for EC values that are above WHO standards for drinking. The application of the water quality index (WQI) depicts that the KD water is chemically unsuitable for use in drinking and needs proper treatment before use. The irrigation indices (SAR, Na%, and MH) indicate that the KD water is chemically suitable for irrigation, whereas EC results and USSL diagram showed that the dam’s water is suitable for irrigation and belongs to the categories of good to permissible for irrigation. Therefore, KD water is suitable for irrigation of most soils (except soils with low salt tolerance). Crops with good salt tolerance are recommended and a special treatment of salinity might be required.
Źródło:
Journal of Ecological Engineering; 2021, 22, 9; 159-175
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Water Quality Assessment of the Morava e Binçës River Based on the Physicochemical Parameters and Water Quality Index
Autorzy:
Musliu, M.
Bilalli, A.
Durmishi, B.
Ismaili, M.
Ibrahimi, H.
Powiązania:
https://bibliotekanauki.pl/articles/124003.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
physicochemical parameter
river waters
Water Quality
WQI
Morava e Binçës
Opis:
The quality of surface waters is being impacted by the anthropogenic and natural pollution, thus limiting the usage of this water for drinking, industry, agriculture, recreation and other purposes. The water quality indices are intended to provide a single value for the water quality of a source or a stream that reduces the large amount of parameters in a simpler expression and enables an easy interpretation of the monitoring data. During 2017, seventeen physicochemical parameters were measured in spring, summer, autumn and winter, in five locations along the Morava e Binçës River in Kosovo. For the assessment we employed the Water Quality Index (WQI) which uses the physicochemical parameters for the evaluation of the water quality. The findings of this study ascertain that MB1 station had the best quality with a value of WQI 88 and is classified in the Good Category, whereas the lowest quality of water was found on in MB4 station with a value of WQI 65 and it is thus classified in the Fair Category. Finally, the average WQI was calculated for the entire measurement period and it resulted in a value of 77.60 indicating that the Morava e Binçës River waters belong to the Fair Category.
Źródło:
Journal of Ecological Engineering; 2018, 19, 6; 104-112
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quantity of selected physical and chemical parameters in surface microlayers and subsurface water on the example of three lakes
Wielkość wybranych parametrów fizykochemicznych w mikrowarstwie powierzchniowej i w wodzie podpowierzchniowej na przykładzie trzech jezior
Autorzy:
Antonowicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/84928.pdf
Data publikacji:
2008
Wydawca:
Akademia Pomorska w Słupsku
Tematy:
quantity
physical parameter
chemical parameter
surface microlayer
subsurface water
lake
alkalinity
pH value
calcium
conductivity
Lake Gardno
Lake Jasien
Lake Dolgie Wielkie
lake water
Opis:
For the period of 4 years, in quarter-time cycle, samples had been taken from surface microlayers and subsurface water of the lakes: Gardno, Jasień and Dołgie Wielkie, by two techniques (Garret net and glass plate). In each talked over layers we have analyzed contents of calcium, general alka-linity, conductance and water reaction (pH). We have also determined the ability of surface mi-crolayer to accumulate these components and we have compared it to subsurface water ability and verified whether this ability depends on the kind of the lake.
Przeanalizowano zdolność wzbogacania wybranych parametrów hydrochemicznych w mikrowarstwach powierzchniowych wybranych trzech jezior. Ustalono, że zasadowość ogólna, konduktacja, odczyn wody oraz stężenie wapnia nieznacznie odbiegają od tego, jakie uzysku-je się w wodzie podpowierzchniowej. Wynik taki świadczy, że mikrowarstwa powierzchniowa wody jeziornej w określonych przypadkach ma zdolność do kumulowania substancji chemicznych w ilościach wielokrotnie wyższych niż woda podpowierzchniowa, jednakże w przypadku parametrów omawianych w prezentowanej pracy zjawisko to występuje w znacz-nie mniejszym stopniu. Niemniej potwierdzono testem ANOVA, że uzyskane współczynniki EFSM w przypadku konduktancji, wzbogacania w wapń i odczynu wody oraz EFGM w przypadku konduktancji różniły się statystycznie w badanych trzech jeziorach. Analiza statystyczna dowodzi, że zjawisko wzbogacania lub zubożania mikrowarstwy powierzchniowej istnieje w przypadku analizowanych w prezentowanej pracy parametrów i jest zależne prawdopodobnie od składu hydrochemicznego wody w poszczególnych jeziorach.
Źródło:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2008, 12
1643-0115
Pojawia się w:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Water Pollution Index of Batujai Reservoir, Central Lombok Regency-Indonesia
Autorzy:
Rahim, Abdul
Soeprobowati, Tri Retnaningsih
Powiązania:
https://bibliotekanauki.pl/articles/124207.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
STORET
physical-chemical parameter
water quality
pollution index
Batujai reservoir
Opis:
Batujai reservoir is located in Central Lombok Regency, Indonesia. The government and local people use it for hydropower generation, drinking water, agricultural irrigation, fish farming, and tourism. The phenomenon of growing population and increasing industrial activities in the catchment area of Batujai reservoir always result in the discharge of various pollutants into the aquatic environment and cause the blooming of water hyacinth over almost 30% of the reservoir area. The aim of this study was to determine the water pollution index of Batujai reservoir. The samples were analysed for the following parameters: pH, temperature, DO, COD, BOD, TSS, and heavy metals. The research was done by using purposive sampling method and determination of water quality status with STORET method based on Government Regulation No. 82/2001. The measurement results show that the physical and chemical parameters of the Batujai reservoir water do not exceed the quality standard are the temperature (29 to 32°C); pH (6.6 to 7.5 mg/L); nitrate (0.421 to 0.546 mg/L); Cd (0.0005 to 0.005 mg/L); Cr (<0.001 to 0.018 mg/L); and the parameters that exceed quality standards are DO (3.8 to 4.9 mg/L); BOD (3.03 to 4.21 mg/L); COD (6.8 to 10.1 mg/L); phosphate (0.181 to 0.237 mg/L); and Pb (0.14 to 0.24 mg/L). The water quality status of Batujai reservoir was heavily polluted for standard quality on class I, II, III and moderately polluted for class IV.
Źródło:
Journal of Ecological Engineering; 2019, 20, 3; 219-225
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Tiny 2.4 GHz Monopole Water Antenna
Autorzy:
Chinen, Koyu
Kinjo, Ichiko
Powiązania:
https://bibliotekanauki.pl/articles/27311972.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
water antenna
polar molecule
S-parameter
monopole antenna
underwater wireless communication
Opis:
We designed, fabricated, and evaluated a monopole water antenna (WA) filled with pure water. A 2.4 GHz patch antenna (PA) was used for measurement comparison, and the current density distribution and 3D field strength radiation distribution and reflection coefficient of the PA had a fundamental mode and a higher-order mode at 3.5 GHz, whose polarization was 90 degrees different. The 2.4 GHz monopole WA could receive only the fundamental mode of the PA. The 3.5 GHz WA could receive the higher-order mode of the PA by rotating the WA by 90 degrees. The transmission coefficient of the 2.4 GHz WA decreased with the square of the spacing, similar to the spatial propagation characteristics of electromagnetic waves. Almost the same results could be expected if planar or three-dimensional antennas were used instead of monopole electrodes.
Źródło:
International Journal of Electronics and Telecommunications; 2023, 69, 3; 455--460
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experiment and prediction of water content of sour natural gas with an modified cubic plus association equation of state
Autorzy:
Liu, Y.
Zhu, Y.
Zhu, J.
Powiązania:
https://bibliotekanauki.pl/articles/779356.pdf
Data publikacji:
2018
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
water content
sour natural gas
CPA-EoS
binary interaction parameter
PR
Opis:
In this work, new experimental value for water content in sour natural gas were reported. In addition, to predict the water content in sour natural gas, a modified cubic plus association equation of state (CPA-EoS) was also proposed. In this model, a new energy parameter a was proposed to make an accurate description of saturated liquid density. Additionally, a temperature dependent binary interaction parameter kij for six binary systems was also obtained. Lastly, a comparison between the prediction results of the modified CPA-EoS and the experimental data was presented, and the results showed that the modifi ed CPA-EoS could predict the water content in sour natural gas with high accuracy, which has an AAD of 3.6722% with experimental data in literatures and an AAD of 1.946% for experimental data reported in this work.
Źródło:
Polish Journal of Chemical Technology; 2018, 20, 2; 98-106
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Relationship between van Genuchtens parameters of the retention curve equation and physical properties of soil solid phase
Autorzy:
Porebska, D.
Slawinski, C.
Lamorski, K.
Walczak, R.T.
Powiązania:
https://bibliotekanauki.pl/articles/24404.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
pedotransfer function
van Genuchten parameter
soil water
relationship
retention curve equation
physical property
soil
water retention curve
water stress
plant
Źródło:
International Agrophysics; 2006, 20, 2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of different irrigation water levels on yield and some quality parameters of lettuce (Lactuca sativa L. var. Longifolia cv.) under unheated greenhouse condition
Autorzy:
Senyigit, U.
Kaplan, D.
Powiązania:
https://bibliotekanauki.pl/articles/60108.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
irrigation water
water level
yield
quality parameter
lettuce
Lactuca sativa var.longifolia
plant cultivar
greenhouse condition
evapotranspiration
Opis:
The experiment was carried out to determine the effects of different irrigation water levels on yield and some quality parameters of lettuce (Lactuca sativa L. Var. Longifolia cv.) under greenhouse conditions. Irrigation water was applied through drip irrigation method with 7 days interval during the total growing season. Irrigation treatments consisted of six different water levels (I1: non-irrigation, I2: 25 %, I3: 50 %, I4: 75 %, I5: 100 % and I6: 125 % of cumulative evaporation measured from Class A pan). The amount of irrigation water ranged between 0 and 106.3 mm among the treatments. Evapotranspiration (ET) values varied from 69.1 to 158.5 mm for the treatments. The highest yield was obtained from the I5 followed by I4. A significant polynomial relation (R2=0.77) was obtained between the yield and irrigation water, and linear relation (R2=0.99) was obtained between the yield and ET. This indicated that when irrigation water increased, yield also increased to a certain point. However, when the amount of irrigation water exceeded the plant water requirement, lettuce yield decreased. Yield response factor (Ky) was determined as 1.97. Since Ky ˃ 1, lettuce was very sensitive to water deficiency. In addition, the highest water use efficiency (WUE) and irrigation water use efficiency (IWUE) values were calculated in the I5 with 0.60 t ha.mm-1 and 0.96 t ha.mm-1 respectively. The best plant quality parameters which were plant weight (239.11 g), plant height (26.30 cm), plant diameter (44.82 cm), root weight (17.31 g), root length (9.02 cm), root diameter (10.04 cm) and leaf number (49) were also obtained in I5. As a result, it was suggested that I5 can be the most appropriate irrigation water level for lettuce with higher WUE, IWUE, yield and quality under greenhouse conditions.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2013, 2/IV
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The examination of biophysical parameters of skin (transepidermal water loss, skin hydration and pH value) in different body regions of ponies
Autorzy:
Szczepanik, M.P.
Wilkolek, P.M.
Pluta, M.
Adamek, L.R.
Pomorski, Z.J.H.
Powiązania:
https://bibliotekanauki.pl/articles/31537.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
biophysical parameter
skin
water loss
hydration
pH value
body region
pony
horse
Opis:
The purpose of this study was to evaluate transepidermal water loss, skin hydration and skin pH in normal ponies. Sixteen ponies of both sexes were examined in the study. Measurements were taken from seven different sites: the neck region, the shoulder, thorax, lumbar, inguinal, lip region and the auricle. In each of the regions transepidermal water loss (TEWL), skin hydration and skin pH were measured. For transepidermal water loss, the lowest values were observed in the lumbar region (9.71g/hm2), while the highest values were observed in the lip region (22.35 g/hm2). In the case of skin hydration the lowest values were observed for the thorax region (2.13 CU), and the highest for the lip region (41.81 CU). For skin pH, the lowest results were obtained in the lumbar region (6.93), and the highest in the lip region (7.96).
Źródło:
Polish Journal of Veterinary Sciences; 2012, 15, 3
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An analysis of pressure distribution in water and water emulsion in a front gap of a hydrostatic bearing
Analiza rozkładu ciśnienia wody i emulsji wodnej w szczelinie czołowej łożyska hydrostatycznego
Autorzy:
Kowalski, K.
Zloto, T.
Powiązania:
https://bibliotekanauki.pl/articles/792293.pdf
Data publikacji:
2014
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
pressure distribution
water
water emulsion
variable height gap
hydrostatic thrust bearing
Navier-Stokes equation
geometrical parameter
exploitation condition
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2014, 14, 4
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Some physical parameters in relation to water extraction by roots of two pigeonpea genotypes
Autorzy:
Ogunremi, L.T.
Powiązania:
https://bibliotekanauki.pl/articles/25012.pdf
Data publikacji:
1996
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
soil
genotype
physical parameter
pigeon-pea
hydraulic resistance
water extraction
root conductivity
root
Źródło:
International Agrophysics; 1996, 10, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Choice of rational diameters of pipelines for hydraulic system of city quarter water
Vybor racionalnykh diametrov truboprovodov gidravlicheskojj sistemy vodosnabzhenija gorodskogo kvartala
Autorzy:
Akimov, P.
Powiązania:
https://bibliotekanauki.pl/articles/793305.pdf
Data publikacji:
2013
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
mathematical model
hydraulic characteristics
water supply system
rational parameter
pipeline
pipe diameter
integration
economic effect
water consumption
city area
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2013, 13, 4
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of a sigma-coordinate baroclinic model to the Baltic Sea
Autorzy:
Jankowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/47974.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
thermohaline variability
numerical modelling
sigma-coordinate model
Baltic Sea
water circulation
hydrological parameter
Źródło:
Oceanologia; 2002, 44, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Issledovanie effektivnocti tekhnologii reagentnogo udalenija ammonijjnogo azota iz ctochnykh vod v vide struvita
The research of the effectiveness of reagent technology ammonium nitrogen removal from wastewater as a struvite
Autorzy:
Koval'chuk, V.
Powiązania:
https://bibliotekanauki.pl/articles/77130.pdf
Data publikacji:
2014
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
waste water
magnesium ammonium phosphate
treatment technology
technological parameter
experimental study
theoretical study
Źródło:
Motrol. Motoryzacja i Energetyka Rolnictwa; 2014, 16, 6
1730-8658
Pojawia się w:
Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of water potential on the failure of potato tissue
Autorzy:
Haman, J.
Konstankiewicz, K.
Zdunek, A.
Powiązania:
https://bibliotekanauki.pl/articles/25420.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
failure
production process
water potential
acoustic emission
mechanical parameter
quality
potato
tissue
plant material
Źródło:
International Agrophysics; 2000, 14, 2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy analysis of an air heat pump for hot water
Analiza energetyczna powietrznej pompy ciepla dla CWU
Autorzy:
Szreder, M.
Powiązania:
https://bibliotekanauki.pl/articles/792485.pdf
Data publikacji:
2016
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
energy
heat pump
hot water
operational parameter
condenser
rotary compressor
storage tank
experimental study
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2016, 16, 1
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selected biochemical parameters of macrophytes applied in the Model Biofiltering System (MBS)
Autorzy:
Wyrwicka, A.
Kiedrzynska, E.
Kiedrzynski, M.
Urbaniak, M.
Materac, M.
Sklodowska, M.
Powiązania:
https://bibliotekanauki.pl/articles/80510.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
biochemical parameter
macrophyte
water purification
heavy metal
model biofiltering system
waste water
Pilica catchment
glutathione transferase
guaiacol peroxidase
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The occurrence of Stagnicola turricula (Held, 1836) (Gastropoda: Pulmonata: Lymnaeidae) in Upper Silesia
Autorzy:
Skowronska-Ochmann, K.
Lewin, I.
Cuber, P.
Powiązania:
https://bibliotekanauki.pl/articles/83313.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
Tematy:
occurrence
Stagnicola turricula
Gastropoda
Pulmonata
Lymnaeidae
Upper Silesian region
water body
physicochemical parameter
hydrobiology
Źródło:
Folia Malacologica; 2012, 20, 1
1506-7629
Pojawia się w:
Folia Malacologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quality parameter of storage apple as a firmness
Autorzy:
Dobrzanski, B.
Rybczynski, R.
Golacki, K.
Powiązania:
https://bibliotekanauki.pl/articles/25698.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
firmness
apple fruit
physical property
mechanical behaviour
storage quality
water potential
apple
quality parameter
Źródło:
International Agrophysics; 2000, 14, 2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of water stress on the gas exchange parameters, productivity and seed health of buckwheat (Fagopyrum esculentum Moench)
Wpływ stresu wodnego na wskaźniki wymiany gazowej, produktywność i zawartość grzybni (Fagopyrum esculentum)
Autorzy:
Pszczolkowska, A.
Fordonski, G.
Kulik, T.
Olszewski, J.
Plodzien, K.
Lojko, M.
Powiązania:
https://bibliotekanauki.pl/articles/28298.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
water stress
gas exchange
gas exchange parameter
productivity
seed health
buckwheat
Fagopyrum esculentum
polymerase chain reaction
water deficit
protein content
Opis:
The present pot experiment studied the effect of different soil moisture contents (60 – 70% CWC (capillary water capacity) – control; 30 – 35% CWC – water stress) on buckwheat productivity, the gas exchange parameters and health of buckwheat nuts. It was found that water deficit affected adversely certain biometric features investigated (plant height, number of nuts per cluster) and caused a decrease in seed weight per plant. It was also shown that water stress reduced the values of the investigated gas exchange parameters (photosynthesis rate, transpiration rate, intercellular-space CO2 concentration, and stomatal conductance) relative to the control treatment. Different soil moisture contents did not have a clear effect on fungal colonization of seeds. The multiplex PCR assays did not enable the detection of the genes responsible for mycotoxin synthesis. Under water deficit conditions, an increase was found in the content of albumin and globulin fractions as well as of glutelin fractions.
Źródło:
Acta Agrobotanica; 2010, 63, 1
0065-0951
2300-357X
Pojawia się w:
Acta Agrobotanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of physicochemical parameters on zooplankton in the brackish, coastal Vistula Lagoon
Autorzy:
Paturej, E.
Gutkowska, A.
Koszalka, J.
Bowszys, M.
Powiązania:
https://bibliotekanauki.pl/articles/48536.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
physicochemical parameter
zooplankton
brackish water
Vistula Lagoon
environment condition
canonical correspondence analysis
temperature
salinity gradient
Opis:
This paper analyzes whether physicochemical properties significantly influence the occurrence of zooplankton in a brackish reservoir. The studies were carried out on the Vistula Lagoon in August and September from 2006 to 2009 at 32 research sites. The environmental conditions in the Vistula Lagoon varied widely. At the time of the investigation, 17 species of rotifers, six species of Cladocera, and ten species of Copepoda were noted, and the total density of plankton fauna ranged from 145 to 765 ind. dm3. Statistical analysis demonstrated a significant correlation between the occurrence of some zooplankton species and certain environmental parameters, whereas the sampling sites were grouped according to study years. The zooplankton systems recorded at the research sites in 2006 constitute the most disparate group. Thus, it can be concluded that physicochemical properties might significantly impact both individual species (depending on their environmental demands) and entire zooplankton clusters.
Źródło:
Oceanologia; 2017, 59, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Limited success of the non-indigenous bivalve clam Rangia cuneata in the Lithuanian coastal waters of the Baltic Sea and the Curonian Lagoon
Autorzy:
Solovjova, S.
Samuiloviene, A.
Srebaliene, G.
Minchin, D.
Olenin, S.
Powiązania:
https://bibliotekanauki.pl/articles/47926.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
bivalve
non-indigenous species
Rangia cuneata
clam
coastal water
environment parameter
winter condition
Lithuania
Curonian Lagoon
Źródło:
Oceanologia; 2019, 61, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spatio-temporal pattern of phytoplankton and pigment composition in surface waters of sSsouth-Eastern Black Sea
Autorzy:
Agirbas, E.
Koca, L.
Aytan, U.
Powiązania:
https://bibliotekanauki.pl/articles/48419.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
phytoplankton
pigment composition
environment parameter
surface water
nutrient
Baltic Sea
high performance liquid chromatography
microscopic analysis
Opis:
Phytoplankton community, diatom to dinoflagellate ratio and pigment composition in surface waters with nutrient data from April 2013 to March 2014 were monitored in the south-eastern (SE) Black Sea using high performance liquid chromatography (HPLC) and microscopic analyses. Microscopic examination revealed a total of 71 species that consist of dinoflagellate (58%), diatoms (25%) and other groups (17%). Microscopy and HPLC-based pigment analyses revealed almost similar results which suggest that the phytoplankton community is mainly composed of diatoms, dinoflagellates and coccolithophores. Fucoxanthin (mean 0.35 ± 019 μg L−1), peridinin (mean 0.18 ± 0.14 μg L−1) and 19-hexanoyloxyfucoxanthin (mean 0.24 ± 0.15 μg L−1) are prominent pigments which showed significant correlation with Diatom-C (r2 = 0.63–0.71, p < 0.05), Dinoflagellate-C (r2 = 0.49–0.80, p < 0.05) and Coccolithophore-C (r2 = 0.72–0.82, p < 0.05), respectively. Mean carbon biomass of diatoms (36.50 ± 9.72 μg L−1) was higher than that of dinoflagellates (33.32 ± 9.05 μg L−1). Significant differences were also observed in nutrient ratio (N:P and Si:N) (One-way ANOVA, p < 0.05). Results illustrate that HPLC-based pigment approach can be used for taxonomic characterisation of phytoplankton groups in the SE Black Sea. Moreover, relatively high dinoflagellate species dominancy and significant correlations between Phyto-C and marker pigments indicate that phytoplankton community composition is shifting towards much smaller groups in SE coasts of the Black Sea.
Źródło:
Oceanologia; 2017, 59, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Transformation of statistical and spectral wave periods crossing a smooth low-crested structure
Autorzy:
Carevic, D.
Loncar, G.
Prsic, M.
Powiązania:
https://bibliotekanauki.pl/articles/48874.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
transformation
wave parameter
statistical method
spectral method
breakwater
empirical model
irregular wave
nonlinear interaction
water depth
Opis:
We carried out experimental studies of a smooth submerged breakwater in a wave channel in order to study such a structure impacts on the changes of statistically and spectrally defined representative wave periods as waves cross it. We discuss the impact of relative submersion, i.e. the relationship between the breakwater crown submersion and the incoming significant wave length Rc/Ls−i, on the representative wave periods. The mean periods, estimated using statistical and spectral methods, were compared in front of and behind the breakwater: the two periods turned out to be identical. Based on the measurements of the spectral mean wave periods in front of and behind the breakwater, an empirical model is derived for estimating the reduction in mean spectral period for submerged and emerged smooth breakwaters.
Źródło:
Oceanologia; 2012, 54, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Erosion and its rate on an accumulative Polish dune coast: the effects of the January 2012 storm surge
Autorzy:
Labuz, T.A.
Powiązania:
https://bibliotekanauki.pl/articles/48033.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
storm surge
water level
coastal erosion
morphological parameter
Polish dune coast
biodiversity
coastal profile
quantitative analysis
Źródło:
Oceanologia; 2014, 56, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Relations between aeration status and physical parameters of some selected Hungarian soils
Autorzy:
Stepniewski, W.
Stepniewska, Z.
Przywara, G.
Brzezinska, M.
Wlodarczyk, T.
Varallyay, G.
Powiązania:
https://bibliotekanauki.pl/articles/25151.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
air permeability
soil
physical parameter
air-filled porosity
Hungary
gas diffusion coefficient
aeration status
water content
Źródło:
International Agrophysics; 2000, 14, 4
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seasonal influence of physico-chemical parameters on phytoplankton diversity, community structure and abundance at Parangipettai coastal waters, Bay of Bengal, South East Coast of India
Autorzy:
Vajravelu, M.
Martin, Y.
Ayyappan, S.
Mayakrishnan, M.
Powiązania:
https://bibliotekanauki.pl/articles/47903.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
phytoplankton
community structure
abundance
seasonal variation
nutrient dynamics
physicochemical parameter
Parangipettai
coastal water
Bengal Bay
India coast
Źródło:
Oceanologia; 2018, 60, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preliminary research on the effect of lime addition on the rheology of sludge
Autorzy:
Malczewska, B.
Powiązania:
https://bibliotekanauki.pl/articles/60689.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
sludge treatment
lime
rheology
flow curve
rheological model
rheological parameter
waste water treatment
sewage treatment product
hydration
Opis:
Samples of excess sludge from wastewater treatment plants were investigated in order to determine the dependence of rheological parameters of sewage sludge on lime addition. Hydration of the sludge is one of its main features which determine sludge management and waste disposal cost. The rheological behavior of sludge is a key characteristic, since it determines the treatment processes. This research has evaluated the use of rheological properties for characterization and control of sludge and lime mixture flow behaviour. A laboratory investigation was conducted using rotating coaxial cylinder and several different gravimetric oncentrations of the investigated sludge. In order to describe the rheological characteristics, the 3-parameter Herschel-Bulkley model was applied. Rheological characterization is of great importance in sludge management, both in terms of biomass dewatering and stabilizing properties, and in terms of design parameters for sludge handling operations.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2011, 11
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of water activity and glass transition on critical preservation conditions of dried squids
Autorzy:
Ren, A.-Q.
Zhang, M.
Mujumdar, A.
Powiązania:
https://bibliotekanauki.pl/articles/25846.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
critical preservation condition
dried squid
glass transition
glass transition temperature
physical parameter
preservation
sorption isotherm
squid
water activity
Źródło:
International Agrophysics; 2011, 25, 3
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lumped Parameter Analysis of Bridge Wire in an Electro Explosive Device of a Power Cartridge for Water-Jet Application: A Case Study
Autorzy:
Parate, Bhupesh Ambadas
Chandel, Sunil
Shekhar, Himanshu
Powiązania:
https://bibliotekanauki.pl/articles/1063002.pdf
Data publikacji:
2020
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
all fire current
bridge wire
electro-explosive devices
igniter
lumped parameter
no fire current
power cartridge
water-jet disruptor
Opis:
In an armament system an electro-explosive device (EED) essentially converts electrical energy into heat which further initiates the explosive train with its accompanying temperature rise. The first function of an EED in a power cartridge is to provide adequate electrical current to cause ignition of the highly sensitive explosive i.e. lead styphnate. The electrical current accomplishes ignition by heating the bulb of lead styphnate which produces enough heat to cause the booster to ignite. The booster which is in the immediate vicinity augments the ignition of the propellant further. The igniter must be held firmly in place with the booster in the tube. Understanding of the initiation of explosives using a bridge wire in EEDs is important for engineers, designers and scientists to develop new theories. In this research article, theoretical and experimental work has been reported pertaining to bridge wire devices in power cartridges for water-jet applications. The objective of the present research work is to use lumped parameter analysis of a bridge wire in an electro explosive device of a power cartridge for water-jet application. A lumped parameter theory is proposed for the analysis of EEDs. A time constant of 3.35 s has been determined using the lumped parameters. The Biot number is less than 0.1 indicating that transient phenomenon is applied.
Źródło:
Central European Journal of Energetic Materials; 2020, 17, 3; 408-427
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
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