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Tytuł:
The Microbiological and Sanitary State of Sand in the Municipal Bathing Beach in Szczecin
Autorzy:
Zatoń, K.
Błaszak, M.
Powiązania:
https://bibliotekanauki.pl/articles/125033.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
beach
sand
sanitary condition
bacteria
fungi
Opis:
Artificial beaches, i.e. places in the public sphere, are usually intended for recreation, located at water reservoirs, rivers, and their surface is naturally occurring or applied sand. The urban bathing beach located in Szczecin by the Deep lake has sand purchased and distributed on the beach by the Municipal Services Office in Szczecin (a few hundred ton). The beach is divided into sectors, a volleyball court is in one part, in the next section catering and sanitary facilities are located, and the remaining area is a place intended for sunbathing and playing games. The aim of the experiment was to assess the effects of different ways of using the beach on changes of microbiological properties of the sand. The tests were taken from the beach sand in May 2013 (first term examinations), and in September, after several months of use (the second term of examinations). The sand was collected near catering and sanitary sector (the first object) and from the area of the volleyball court (the second object), as well as the playground for children (the third object). The facilities were distanced from the shoreline of the lake by approx. 8 metres. The comparison included the number of heterotrophic bacteria, fungi and the detected presence of coliform bacteria, including Escherichia coli, bacteria of the genus Salmonella and eggs of intestinal parasites. In any of the objects, or the periods of time, eggs of intestinal parasites and bacteria of the genus Salmonella were detected. The presence of coliform bacteria including E. coli was found in the sand collected from a catering-sanitary zone, there was also the biggest number of bacteria and fungi. The number of heterotrophic bacteria and fungi was similar in samples of sand taken from the volleyball court and from the playground, in this sand there was no bacteria belonging to the E. coli species, although in several samples from the playground other bacteria belonging to the coliform genus were detected. To sum up, it is possible to state that the same sand used in various ways is gaining different microbiological characteristics. The values of the studied parameters differed significantly with regards to sand taken from the area of consumption, hygiene-sanitary activities and sand collected from the area of active leisure (the court and playground). These results indicate the need for a deliberate selection of location for sunbathing (children playing in the sand) away from the sites for culinary and sanitary purposes.
Źródło:
Journal of Ecological Engineering; 2015, 16, 5; 40-45
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vibration analysis of an Airlie beach house: a case study in Australia
Autorzy:
Wheatley, Greg
Babamiri, Arash
Philippa, Bronson
Powiązania:
https://bibliotekanauki.pl/articles/2173468.pdf
Data publikacji:
2022
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
vibration
beach house
Airlie beach
Australia
structure analysis
wibracje
dom na plaży
plaża Airlie
analiza struktury
Opis:
Airlie beach houses are quite common in the coastal areas of Australia. These houses, similar to other buildings, provide comfort for their residents. House comfort is not limited to temperature or sound pollution, vibration can be considered as another equally important factor. In this article, the vibration of an Airlie beach house was investigated. The base steel structure was modeled in SolidWorks and Space Gass for evaluating stress distribution and nodal displacement, respectively. To find the root cause of the distressing vibration of the house, which was felt with dwellings, the axial acceleration of the house’s structure was determined. Some feasible solutions such as adding a fiber-reinforced polymer joist hanger, inserting additional rubber padding to the joist hanger, and attaching additional bracing, were discussed and a cost analysis was considered for the solutions. Eventually, the nature of the best solution, which was adding rubber, was tested experimentally.
Źródło:
Zeszyty Naukowe. Transport / Politechnika Śląska; 2022, 114; 179--192
0209-3324
2450-1549
Pojawia się w:
Zeszyty Naukowe. Transport / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Macro-plastic litter, a new vector for boreal species dispersal on Svalbard
Autorzy:
Węsławski, Jan Marcin
Kotwicki, Lech
Powiązania:
https://bibliotekanauki.pl/articles/2042124.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Arctic
Svalbard
macro-plastic
beach litter
species dispersal
Źródło:
Polish Polar Research; 2018, 39, 1; 165-174
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Trophodynamic variations on microtidal North Mediterranean sandy beaches
Autorzy:
Vassallo, P.
Fabiano, M.
Powiązania:
https://bibliotekanauki.pl/articles/48051.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
coastal zone
Mediterranean Sea
benthic community
beach environment
sandy beach
ecosystem
trophodynamics
Opis:
Trophic models of the micro and meiobenthic community of six sandy beaches on the Ligurian coast (north-western Mediterranean Sea) have been performed to assess variations in structure and function of the ecosystem. A novel approach based on the determination of the feeding predisposition of the benthic community revealed that there is a significant shift in the trophodynamics of the system with respect to environmental constraints. Along an emerged-submerged gradient the benthic community displayed a clear trend from a fundamentally detritusdependent structure to an autotrophic, more balanced and diversified one. The trends analysed focus on the importance of the swash zone as a transitional area between the land and the sea that is characterised by a high diversity and activity of the trophic network.
Źródło:
Oceanologia; 2005, 47, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Interstitial community oxygen consumption in a Baltic sandy beach: horizontal zonation
Autorzy:
Urban-Malinga, B.
Opalinski, K.W.
Powiązania:
https://bibliotekanauki.pl/articles/47737.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
interstitial community
sediment water
carbon requirement
sandy beach
oxygen consumption
Baltic Sea
Opis:
The oxygen consumption of a sandy beach interstitial community was determined on four occasions (January, May, August, October) on the Gulf of Gdańsk (southern Baltic Sea). The study was carried out at four locations on the beach slope (littoral, waterline, splash zone and middle beach). Oxygen consumption varied from 158–159 cm3 O2 m−2 h−1 at the underwater site and waterline to 20–36 cm3 O2 m−2 h−1 in the middle beach. According to these data, interstitial organisms are able to utilize from 206 to 1641 mg of organic carbon per square metre per day. In general, metabolic activity decreased gradually from the waterline towards the middle beach, and a significant correlation was found between oxygen consumption and sediment water content. Changes in oxygen consumption on the beach slope were statistically significant.
Źródło:
Oceanologia; 2001, 43, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microphytobenthic primary production along a non-tidal sandy beach gradient: an annual study from the Baltic Sea
Autorzy:
Urban-Malinga, B.
Wiktor, J.
Powiązania:
https://bibliotekanauki.pl/articles/48717.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
primary production
microphytobenthos
chlorophyll a
sandy beach
Baltic Sea
Opis:
The microphytobenthic primary production and chlorophyll a content were studied over the annual cycle (May 1998 – May 1999) on a non-tidal Baltic sandy beach at three stations along the beach gradient: littoral, waterline and splash zone. The chlorophyll a concentrations varied between 0.88 and 12.18 μg cm−3. Net and gross primary production rates respectively lay within the ranges 0.1–31.4 mgC m−2 h−1 and 0.2–41.8 mgC m−2 h−1. The highest values of both Chl a content and primary production were noted at the littoral station, the lowest ones at the waterline. The mean annual P/B ratio was highest at the waterline. The differences in Chl a content between stations were statistically significant and may be related to water dynamics, resuspension and water content. Production rates were highly variable on monthly time scales, and the highest results at all the study locations were noted in July. The gross photosynthetic rates were significantly correlated with water temperature.
Źródło:
Oceanologia; 2003, 45, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Differences of chemical components in beaches sediments with dissimilar anthropopressure
Różnice składników chemicznych w osadach plażowych o odmiennej antropopresji
Autorzy:
Trojanowski, J.
Bigus, K.
Trojanowska, C.
Powiązania:
https://bibliotekanauki.pl/articles/84815.pdf
Data publikacji:
2011
Wydawca:
Akademia Pomorska w Słupsku
Tematy:
chemical component
beach
sediment
anthropopressure
sand
organic matter
nitrogen
phosphorus
Opis:
The investigations of the chemical composition of sands were conducted on the beach in Ustka and Czołpino. The Ustka is a typical tourist town and Czołpino is located in the Slovinski National Park away from urban or rural areas. The beach sediments in Ustka contain much more organic matter, nitrogen and phosphorus compounds as well as calcium carbonate than analogous deposits in Czołpino. The effect of sea water was manifested in the high content of organic matter in places having permanent contact with sea water. The content of the organic matter increased together with with the depth of settlings in these places. However more organic matter in surface layers was observed in regions more distant from the sea, because penetration of organic matter into the sediments is possible during precipitation. The concentration of ammonia nitrogen in the analyzed beach deposits increased with depth, what probably results from the lower oxygen content in deeper layers. It was confirmed that organic matter in sands of the beach in Czołpino is of natural origin, while in Ustka it is primarily of anthropogenic origin.
Celem pracy było oszacowanie wpływu czynników antropogenicznych na skład chemiczny piasków z plaż w Ustce i Czołpinie. Ustka jest typową miejscowością uzdrowiskową i turystyczną, natomiast Czołpino leży na terenie Słowińskiego Parku Narodowego, z dala od miast i wiosek. Osady plażowe w Ustce zawierały znacznie więcej materii organicznej, związków azotowych i fosforowych oraz węglanu wapnia niż analogiczne osady w Czołpinie. Wpływ wody morskiej na obydwu plażach odzwierciedlał się dużą zawartością materii organicznej w miejscach mających ciągły kontakt z woda morską. Koncentracja tego składnika wzrastała tam wraz z głębokością. W rejonach plaży bardziej oddalonych od morza proces przenikania materii organicznej w głąb osadów jest natomiast możliwy przede wszystkim podczas opadów atmosferycznych, dlatego głębsze warstwy były uboższe w ten składnik. Prawdopodobnie ze względu na mniejszą zawartość tlenu w głębszych warstwach piasku koncentracja azotu amonowego w badanych osadach plażowych wzrastała wraz z głębokością. Stwierdzono, że materia organiczna zawarta w piaskach plaży w Czołpinie jest pochodzenia naturalnego, a w Ustce głownie pochodzenia antropogenicznego.
Źródło:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2011, 15
1643-0115
Pojawia się w:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The biochemical composition of sedimentary organic matter in sandy beaches of various anthropopressure
Ocena stopnia infiltracji materii organicznej w osadach plaż o różnej antropopresji
Autorzy:
Trojanowski, J.
Bigus, K.
Powiązania:
https://bibliotekanauki.pl/articles/84873.pdf
Data publikacji:
2013
Wydawca:
Akademia Pomorska w Słupsku
Tematy:
biochemical composition
sediment
organic matter
sandy beach
anthropopressure
beach sediment
Opis:
Beach sediments from two beaches at the Polish coast of the Baltic Sea were collected and analyzed. The sediments were collected in two seasons – winter and summer – at two stations, depending on the influence of the sea water on the examined sediments. At each station, surface sediments (0-5 cm) were collected as well as sediments at the depth of 10-15 cm. The results of the conducted tests reveal, that anthropopressure, the depth where the collected sediments were taken and the direct influence of the sea water on the sediments have impact on the chemical composition of beach sediments and their food quality for the inhabiting psammon. The conducted tests disclose that there is more organic matter and its labile forms in the sediments originating from Ustka. Strong anthropogenic pressure found at the beach in Ustka also contributes to higher concentration of uncharacterized fraction of organic carbon in the area. Analyzing alimentary usefulness of the organic matter there, it seems to be higher at the beach in Czołpino.
Pobrano i zanalizowano osady plażowe pochodzące z dwóch plaż polskiego wybrzeża Morza Bałtyckiego. Osady pobierano w dwóch porach roku – zimą i latem – na dwóch stanowiskach w zależności od wpływu wody morskiej na badane osady. Na każdym stanowisk pobierano osady powierzchniowe (0–5 cm) oraz osady z głębokości 10–15 cm. Z przeprowadzonych badań wynika, że skład chemiczny osadów plażowych, a także ich jakość jako pokarmu dla bytującego tam psammonu ma związek z antropopresją, głębokością, z jakiej pobierano osady oraz bezpośrednim wpływem wody morskiej na te osady. Wykonane analizy pokazują, że w osadach pochodzących z Ustki występuje znacznie więcej materii organicznej oraz jej labilnych form. Silna presja antropogeniczna występująca na plaży w Ustce jest również przyczyną znacznie większego stężenia niescharakteryzowanej frakcji węgla organicz nego na tym terenie. Analizując przydatność pokarmową znajdującej się na obu plażach materii, można zauważyć, że jest ona znacznie większa w Czołpinie.
Źródło:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2013, 17
1643-0115
Pojawia się w:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Linia wody – szczególne miejsce arenalu południowego Bałtyku dla wolnożyjących nicieni
Water line – a special place of the Southern Baltic Sea for free-living nematodes
Autorzy:
Taberska, A.
Rokicka-Praxmajer, J.
Powiązania:
https://bibliotekanauki.pl/articles/399855.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
nematofauna
bioróżnorodność
grupy troficzne
linia wody
arenal
Bałtyk
biodiversity
trophic group
water lines
beach
Baltic Sea
Opis:
Praca przedstawia charakterystykę strukturalną i funkcjonalną zespołów nematofauny, zasiedlających osady na linii wody w południowym Bałtyku. Wolnożyjące nicienie oznaczono do rodzaju oraz określono ich strukturę troficzną. Zagęszczenie nematofauny na badanych stanowiskach wahało się od 10,52 ± 9,82 osob./10 cm2 do 124,49 ± 76,39 osob./10 cm2. Najliczniej występowały nicienie z rodzaju Ascolaimus, stanowiąc od ok. 45% do 74% całkowitej liczebności nematofauny. Łącznie w okresie badań stwierdzono nematofaunę należącą do 7 rodzajów. Za zasadniczy element nematofauny zasiedlającej osady na linii wody uznano nicienie z rodzajów: Ascolaimus, Axonolaimus, Enoplolaimus i Daptonema. Pod względem funkcjonalnym dominowali nieselektywni osadożercy, osobniki z nieuzbrojoną torebką gębową, reprezentowane przez nicienie z rodzajów: Ascolaimus, Axonolaimus, Theristus i Daptonema.
This paper presents the structural and functional characteristics of nematofauna assemblages inhabiting the sediments along the water line in the southern Baltic Sea. The nematodes were identified to the genus level and assigned to appropriate trophic group. The density of free-living nematoda varied from 10.52 ± 9.82 ind./10 cm2 to 124.49 ± 76.39 ind./10 cm2. Ascolaimus was the most abundantly represented genus, accounting for from 45% to 74% of the total number of nematofauna. A total of 7 nematode genera were identified. Ascolaimus, Axonolaimus, Enoplolaimus and Daptonema were considered essential elements of nematofauna. In terms of functionality, non-selective deposit feeders were predominant, individuals with unarmed buccal cavity, represented by nematodes of the genera Ascolaimus, Axonolaimus, Theristus and Daptonema.
Źródło:
Inżynieria Ekologiczna; 2018, 19, 1; 9-18
2081-139X
2392-0629
Pojawia się w:
Inżynieria Ekologiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the Description of Long Water Waves in Material Variables
Autorzy:
Szmidt, K.
Hedzielski, B.
Powiązania:
https://bibliotekanauki.pl/articles/241085.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:
long waves
shallow water
unsteady motion
sloping beach
Opis:
Shallow water equations formulated in material variables are presented in this paper. In the model considered, a three-dimensional physical problem is substituted by a two-dimensional one describing a transformation of long waves in water of variable depth. The latter is obtained by means of the assumption that a vertical column of water particles remains vertical during the entire motion of the fluid. Under the assumption of small, continuous variation of the water depth, the equations for gravity waves are derived through Hamilton's principle formulated in terms of the material coordinates. This formulation ensures the conservation of mechanical energy. The approximation depends on the wave parameters as well as on the bed bathymetry. The latter may influence a solution of the model decisively; thus, one should be careful in applying the description to complicated geometries of fluid domains encountered in engineering practice.
Źródło:
Archives of Hydro-Engineering and Environmental Mechanics; 2009, 56, 1-2; 63-83
1231-3726
Pojawia się w:
Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the transformation of long gravity waves on a sloping beach
Autorzy:
Szmidt, J.K.
Hedzielski, B.
Powiązania:
https://bibliotekanauki.pl/articles/49151.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
long wave
gravity wave
transformation
wave transformation
sloping beach
wave gauge
propagation
investigation
experimental measurement
Opis:
The transformation of long water waves arriving at a sloping beach is investigated. An approximate theory is presented for plane periodic waves propagating in water of non-uniform depth. The theoretical description of the phenomenon, based on certain kinematic assumptions, is formulated in the material variables, and the solution is constructed by applying the Hamilton variational principle. In order to assess the accuracy of the formulation and to learn more about long wave transformation, experimental measurements were carried out in a laboratory flume. In the experiments, a water wave, generated by a piston-type wave maker placed at one end of the flume, propagated towards a rigid inclined ramp installed at the other end of the flume. The wave transformation along the direction of its propagation was recorded by a set of wave gauges installed along the flume. The wave run- up on the sloping beach was measured with a special conductivity gauge placed alongside the ramp. Comparison of the theoretical results with experimental data indicates that the proposed theoretical formulation provides a good description of the main features of wave transformation behaviour over a sloping beach, except in the vicinity of the shore point, where some discrepancies occur.
Źródło:
Oceanologia; 2010, 52, 3; 363-389
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Formation and species composition of stormcast beach wrack in the Gulf of Riga, Baltic Sea
Autorzy:
Suursaar, U.
Torn, K.
Martin, G.
Herkul, K.
Kullas, T.
Powiązania:
https://bibliotekanauki.pl/articles/48538.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
beach wrack
species composition
wave
current
storm
hydrodynamic modelling
submerged vegetation
biodiversity
Riga Gulf
Baltic Sea
Źródło:
Oceanologia; 2014, 56, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The beachflea Platorchestia platensis (Kroyer, 1845): a new addition to the Polish fauna (with a key to Baltic talitrid amphipods)
Autorzy:
Spicer, J.I.
Janas, U.
Powiązania:
https://bibliotekanauki.pl/articles/48309.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Polish fauna
Platorchestia platensis
talitrid amphipod
beach flea
Puck Bay
Baltic Sea
Amphipoda
Crustacea
Opis:
The present paper reports for the first time on the occurrence of Platorchestia platensis (Krøyer, 1845) (Crustacea, Amphipoda) in Puck Bay (southern Baltic, Poland) in May 2005. A key to the Baltic talitrids is given, which can be used to identify males and females of the four species occurring on Polish shores (Talitrus saltator, Talorchestia deshayesii, Orchestia cavimana, Platorchestia platensis) and additionally Orchestia gammarellus, which may yet be found in the Polish coastal zone.
Źródło:
Oceanologia; 2006, 48, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selectivity of fishing gear for hairtail fish (Trichiurus lepturus Linnaeus, 1758) commodities in Pangandaran District, Indonesia
Autorzy:
Sienna, Yafi Ibnu
Hasan, Zahidah
Lili, Walim
Dewanti, Lantun Paradhita
Powiązania:
https://bibliotekanauki.pl/articles/1075461.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Beach seines
Gill nets
Pangandaran
Selectivity
Trichiurus lepturus
Opis:
Hairtail fish (Trichiurus lepturus Linnaeus, 1758) are a major commodity of high economic value in Pangadaran. This study aims to determine the most selective fishing gear for hairtail fish commodities based on the frequency of hairtail fish length, the proportion of the main catch and by-catch in Pangandaran District. Data collected are primary and secondary data. Primary data consists of catch data and fish size length. The catch is obtained by collecting the results of landing fish with gill nets and beach seines. Fish size length data obtained through direct measurement when the fish is landed. Secondary data collected is data on capture fisheries production in Pangandaran District. Data analysis consisted of calculation of length size distribution and comparison of main and by-catches with fishing gears. The analysis was carried out with the help of Microsoft Excel software. The results of this study indicate that hairtail fish in Pangandaran District were captured using gill nets and beach seines. Based on the results of the research conducted on August 2018 until January 2019, it can be concluded that gill net fishing gears are more selective compared to beach seines based on several parameters observed, namely the length distribution and the proportion of main catch : by-catch. The results showed that the comparison of the length distribution of hairtail fish that was appropriately caught between gill nets and beach seines was 85.74% : 30,74%. Comparison of the proportion of main catch : by-catch between gill nets and beach seines was 52.38%: 23.57%.
Źródło:
World Scientific News; 2019, 126; 248-260
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł

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