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Tytuł:
Zoidbergus, A New Genus of Apseudidae (Tanaidacea) with Remarks on Apseudes Siegi and Apseudes Vitjazi
Autorzy:
Jóźwiak, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/2051178.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Icelandic waters
Apseudomorpha
Apseudes
Zoidbergus
deep−sea
Źródło:
Polish Polar Research; 2014, 2; 389-414
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zarządzanie załogą na statku – badania jakościowe wśród marynarzy
Managing Ship Crews: Qualitative Research among Seamen
Autorzy:
Kołodziej, Arkadiusz
Kołodziej-Durnaś, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/599155.pdf
Data publikacji:
2012-12-15
Wydawca:
Instytut Pracy i Spraw Socjalnych
Tematy:
socjologia morska
zarządzanie różnorodnością
zarządzanie zasobami ludzkimi
załoga statku dalekomorskiego
maritime sociology
diversity management
human resource management
deep–sea vessel crew
Opis:
artykule podejmowany jest problem zmieniających się warunków pracy na morzu. Autorzy dokonują rekapitulacji głównych aspektów środowiska pracy na statku dalekomorskim, wykorzystując analizy przeprowadzone na gruncie socjologii morskiej dotyczących polskich przedsiębiorstw gospodarki morskiej w czasach PRL. Następnie, na bazie badań jakościowych przeprowadzonych przez autorów, wyłoniono siedem głównych zagadnień jako podstawowych obszarów problemowych związanych z zarządzaniem załogami marynarzy na statku dalekomorskim. Analizie poddano cztery z nich: różnice kulturowe i zarządzanie różnorodnością, sfera publiczna, ekonomizacja funkcji personalnej, etos marynarza. Na zakończenie zaprezentowano praktyczne wskazówki dla zarządzających zasobami ludzkimi.
This article looks at questions of changing conditions of work at sea. The authors recapitulate the main aspects of the working environment on a deep–sea vessel using maritime sociology based analyses conducted on Polish maritime enterprises during the period of the People’s Republic of Poland. Subsequently, based on qualitative research conducted by the authors, seven main questions were isolated as basic problem areas connected with the management of seamen on a deep–sea vessel. Four of them were subject to analyses: cultural differences and diversity management, the public sphere, the economizing of the personnel function, and the seaman ethos. Practical recommendations for human resource management are presented as a conclusion.
Źródło:
Zarządzanie Zasobami Ludzkimi; 2012, 6(89); 53-71
1641-0874
Pojawia się w:
Zarządzanie Zasobami Ludzkimi
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Verification of Quasi-Determinism theory against Baltic Sea Data
Autorzy:
Antão, E.
Powiązania:
https://bibliotekanauki.pl/articles/108522.pdf
Data publikacji:
2018
Wydawca:
Instytut Meteorologii i Gospodarki Wodnej - Państwowy Instytut Badawczy
Tematy:
quasi-determinism theory
deep water waves
Baltic Sea
AWAC measurements
freak waves
teoria quasi-determinizmu
pomiary AWAC
falowanie
Morze Bałtyckie
Opis:
The second formulation of Boccotti’s quasi-determinism theory is investigated. Deep water wave records collected in the Baltic Sea with AWAC (Nortek Acoustic Wave and Current profiler) are used in this study. The adequacy of Boccotti’s theory for Baltic Sea conditions is evaluated on the basis of some simulations of wave groups with a very large maximum wave height. The large waves are chosen using an abnormality index (ratio of maximum wave height to significant wave height) with a value greater than 2. Such values of this index are also used by different authors for the definition of freak waves. In order to obtain better results, JONSWAP formula is fitted to the measured spectra instead of using default JONSWAP parameters for the simulations. Verification of values of spectral parameters obtained from the autocovariance function against the same parameters calculated from smoothed and not smoothed spectra is presented. Much attention is given to spectral peak period value. The spectral width parameter, in QD theory known as narrow bandedness parameter, requires further investigation as the results obtained here did not allow the formulating of any functional relation with another – more often used – spectral width parameter. The low frequency of sampling of the data allowed only the most important aspects of the theory to be checked. A short Matlab function used in QD simulations is presented.
Źródło:
Meteorology Hydrology and Water Management. Research and Operational Applications; 2018, 6, 2; 11-20
2299-3835
2353-5652
Pojawia się w:
Meteorology Hydrology and Water Management. Research and Operational Applications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ventilation of the Baltic Sea deep water: A brief review of present knowledge from observations and models
Autorzy:
Markus Meier, H.E.
Feistel, R.
Piechura, J.
Arneborg, L.
Burchard, H.
Fiekas, V.
Golenko, N.
Kuzmina, N.
Mohrholz, V.
Nohr, C.
Paka, V.T.
Sellschopp, J.
Stips, A.
Zhurbas, V.
Powiązania:
https://bibliotekanauki.pl/articles/47761.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Sopot
ventilation
conference
Baltic Sea
deep water
turbulent mixing
Opis:
The ventilation of the Baltic Sea deep water is driven by either gale-forced barotropic or baroclinic salt water inflows. During the past two decades, the frequency of large barotropic inflows (mainly in winter) has decreased and the frequency of medium-intensity baroclinic inflows (observed in summer) has increased. As a result of entrainment of ambient oxygen-rich water, summer inflows are also important for the deep water ventilation. Recent process studies of salt water plumes suggest that the entrainment rates are generally smaller than those predicted by earlier entrainment models. In addition to the entrance area, the Słupsk Sill and the Słupsk Furrow are important locations for the transformation of water masses. Passing the Słupsk Furrow, both gravity-driven dense bottom flows and sub-surface cyclonic eddies, which are eroded laterally by thermohaline intrusions, ventilate the deep water of the eastern Gotland Basin. A recent study of the energy transfer from barotropic to baroclinic wave motion using a twodimensional shallow water model suggests that about 30% of the energy needed below the halocline for deep water mixing is explained by the breaking of internal waves. In the deep water decade-long stagnation periods with decreasing oxygen and increasing hydrogen sulphide concentrations might be caused by anomalously large freshwater inflows and anomalously high mean zonal wind speeds. In different studies the typical response time scale of average salinity was estimated to be between approximately 20 and 30 years. The review summarizes recent research results and ends with a list of open questions and recommendations.
Źródło:
Oceanologia; 2006, 48, S
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Unusual echinoid resting trace records change in the position of the redox boundary (Palaeogene of the Lesser Caucasus in Georgia)
Autorzy:
Uchman, Alfred
Lebanidze, Zurab
Kobakhidze, Nino
Beridze, Tamar
Makadze, Davit
Lobzhanidze, Koba
Khutsishvili, Sophio
Chagelishvili, Rusudan
Koiava, Kakha
Khundadze, Nino
Powiązania:
https://bibliotekanauki.pl/articles/2172617.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
ichnotaxonomy
new ichnotaxa
Irregular echinoids
deep-sea
flysch
Redox boundary
oxygenation
ichnotaksonomia
jeżowce
muł abisalny
flisz
redoks
natlenianie
Opis:
The first recognition of a tracemaker responding to a temporary shift in the redox boundary is recognized. This is recorded by a new trace fossil, Sursumichnus orbicularis igen. et isp. nov., which is established for mound-like structures on the upper surfaces of sandstone beds from the Borjomi Flysch (upper Paleocene–lower Eocene) in the Lesser Caucasus (Georgia). It is connected with the spatangoid echinoid burrow Scolicia de Quatrefages, 1849 and interpreted as a resting trace of the same tracemaker produced after moving up from a deeper position within the sediment. The resting is caused by an episode of unfavourable conditions related to shallowing of the redox boundary. The trace fossil is a component of the Nereites ichnofacies.
Źródło:
Acta Geologica Polonica; 2022, 72, 3; 317--330
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Unusual Baltic inflow activity in 2002-2003 and varying deep-water properties
Autorzy:
Feistel, R.
Nausch, G.
Hagen, E.
Powiązania:
https://bibliotekanauki.pl/articles/48654.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Sopot
temperature
inflow
residence time
deep water renewal
conference
salinity
Baltic Sea
Baltic Monitoring Programme
Opis:
The unusual sequence of inflow events into the Baltic Sea that occurred in 2002 and 2003 includes the first ever important baroclinic inflow to be described (August 2002), the Major Baltic Inflow (January 2003), which gave rise to the highest oxygen levels in the Gotland Deep since the 1930s, and the baroclinic inflow (August 2003) that elevated the Gotland Basin deep water salinity to values last observed in 1977, and caused the surface salinity to rise again. From these trend changes, salt residence times were estimated at about 20 years in the deep waters and 30 years above the pycnocline. Ventilation of the remote Karlsö Deep took until 2005, two years after the inflow event responsible, at a time when the Bornholm and Eastern Gotland Basins were already returning to stagnation.
Źródło:
Oceanologia; 2006, 48, S
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Underwater vehicles in the research work of Szczecin Universities : systems and applications
Pojazdy podwodne w pracach naukowych Uniwersytetu Szczecińskiego : systemy i zastosowania
Autorzy:
Graczyk, Tadeusz
Powiązania:
https://bibliotekanauki.pl/articles/32728220.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Medycyny i Techniki Hiperbarycznej
Tematy:
deep-sea technology
remotely operated vehicle
manned deep-sea vehicle
technika głębinowa
pojazd głębinowy
załogowy pojazd głębinowy
Opis:
The article presents the scope of research and application work on unmanned remotely operated deep-sea vehicle systems carried out at the then Szczecin University of Technology (now the West Pomeranian University of Technology in Szczecin). The work culminated in the construction of said systems and subsequent pioneering underwater work using them, implemented in cooperation with maritime industry establishments.
W artykule przedstawiono zakres prac badawczych i aplikacyjnych dotyczących systemów bezzałogowych zdalnie sterowanych pojazdów głębinowych prowadzonych na ówczesnej Politechnice Szczecińskiej (obecnie Zachodniopomorski Uniwersytet Technologiczny w Szczecinie). Zwieńczeniem prac była budowa takich systemów i pionierskie prace podwodne z ich zastosowaniem, prowadzone przy współudziale instytucji gospodarki morskiej.
Źródło:
Polish Hyperbaric Research; 2022, 1(78); 51-64
1734-7009
2084-0535
Pojawia się w:
Polish Hyperbaric Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thyasirid bivalves from Cretaceous and Paleogene cold seeps
Autorzy:
HRYNIEWICZ, KRZYSZTOF
AMANO, KAZUTAKA
JENKINS, ROBERT G.
KIEL, STEFFEN
Powiązania:
https://bibliotekanauki.pl/articles/945983.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
bivalvia
thyasiridae
cold seeps
deep sea
ecology
evolution
cretaceous
paleogene
Opis:
We present a systematic study of thyasirid bivalves from Cretaceous to Oligocene seep carbonates worldwide. Eleven species of thyasirid bivalves are identified belonging to three genera: Conchocele, Maorithyas, and Thyasira. Two species are new: Maorithyas humptulipsensis sp. nov. from middle Eocene seep carbonates in the Humptulips Formation, Washington State, USA, and Conchocele kiritachiensis sp. nov. from the late Eocene seep deposit at Kiritachi, Hokkaido, Japan. Two new combinations are provided: Conchocele townsendi (White, 1890) from Maastrichtian strata of the James Ross Basin, Antarctica, and Maorithyas folgeri (Wagner and Schilling, 1923) from Oligocene rocks from California, USA. Three species are left in open nomenclature. We show that thyasirids have Mesozoic origins and appear at seeps before appearing in “normal” marine environments. These data are interpreted as a record of seep origination of thyasirids, and their subsequent dispersal to non-seep environments. We discuss the age of origination of thyasirids in the context of the origin of the modern deep sea fauna and conclude that thyasirids could have deep sea origins. This hypothesis is supported by the observed lack of influence of the Cretaceous and Paleogene Oceanic Anoxic Events on the main evolutionary lineages of the thyasirids, as seen in several other members of the deep sea fauna.
Źródło:
Acta Palaeontologica Polonica; 2017, 62, 4
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Theoretical foundations of the implementation of controlled pyrotechnical reactions as an energy source for transportation from the sea bed
Autorzy:
Filipek, W.
Broda, K.
Powiązania:
https://bibliotekanauki.pl/articles/134942.pdf
Data publikacji:
2016
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
deep sea mining
transport from the sea floor
blasting materials
pyrotechnics
implementation
exploitation
Opis:
The depletion of inland deposits of natural resources and the increasing demand for some raw materials have resulted in the growing interest in deep sea exploitation of natural deposits. This gives an impulse to the mounting research and development of methods of exploitation of natural deposits from the sea and ocean floors, which are not limited to petrol and gas. The main area of difficulty in opencast mining methods conducted at considerable depths is the transportation process from the sea floor to the surface. The methods employed so far, such as continuous line bucket (CLB), hydraulic pumping (HP) and air-lift pumping (ALP), have both advantages and disadvantages. The most salient problem is their considerable energy consumption resulting in great costs, hence the need for the development of less expensive methods. The authors have suggested a new method, involving the use of pyrotechnical materials as a source of energy in the transportation from the sea floor and have presented its theoretical grounding. Special emphasis has been placed on determining the depth to which the method can be applied and the energy needed in transportation in relation to the density of the transported substance (output).
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 48 (120); 117-124
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The oldest representative of a modern deep-sea ophiacanthid brittle-star clade from Jurassic shallow-water coral reef sediments
Autorzy:
Thuy, B.
Schulz, H.
Powiązania:
https://bibliotekanauki.pl/articles/23392.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Echinodermata
Ophiuroidea
Ophiacanthidae
coral reef
deep sea group
Late Jurassic
Mergelstetten Formation
Germany
sediment
Opis:
Ophiurites crinitus is a fossil brittle−star species which passed largely unnoticed since its original description. In this paper, we redescribe the type material of O. crinitus with the aim to put it into the context of modern ophiuroid systematics, and propose the new genus name Ophiosternle to replace the invalid Ophiurites. The re−assessed species is shown to be a member of the extant deep−sea family Ophiacanthidae, articulated fossils of which are extremely rare. It presents greatest affinities with members of the Ophioplinthaca–Ophiocamax–Ophiomitra clade, of which it most probably represents the oldest known fossil species. The depositional environment of the strata, which yielded the described specimens is interpreted as shallow, storm−influenced marine setting in the immediate vicinity of coral reefs. This contrasts with the distribution pattern of extant species of the Ophioplinthaca–Ophiocamax–Ophiomitra clade, which almost exclusively occur at depths exceeding the shelf break.
Źródło:
Acta Palaeontologica Polonica; 2013, 58, 3
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The evolution of deep sea container routes: the Italian case
Autorzy:
Lupi, Marino
Pratelli, Antonio
Licandro, Cecilia
Farina, Alessandro
Powiązania:
https://bibliotekanauki.pl/articles/961396.pdf
Data publikacji:
2019
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
maritime transport
Italian ports
deep sea shipping
DSS
container routes
port hinterland
porty we Włoszech
żegluga dalekomorska
transport morski
trasy kontenerowca
zaplecze portu morskiego
Opis:
In this study, an analysis of deep sea shipping (DSS) container services, calling at Italian ports, is carried out. A comparison with analogous sets of data collected in the years 2011 and 2014 has been performed. The most important Italian port system is the Ligurian one, which includes the main Italian port, Genoa, which is the main access gate to the Padan Plain, the most productive area of Italy. However, other ports are also important: the Ligurian port of La Spezia and the hub port of Gioia Tauro. The comparison, with 2011 and 2014 data, has shown that while the number of DSS departures, from Italian ports, did not increase, the dimensions of the ships, which call at Italian ports, increased relevantly: this is in line with the current trend in container ship gigantism.
Źródło:
Transport Problems; 2019, 14, 1; 69-80
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Temporal and spatial evolution of the Baltic deep water renewal in spring 2003
Autorzy:
Feistel, R.
Nausch, G.
Matthaus, W.
Hagen, E.
Powiązania:
https://bibliotekanauki.pl/articles/48009.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
temporal evolution
inflow
spring
deep water renewal
Baltic Sea
oxygen condition
spatial evolution
Opis:
In January 2003, a deep-water renewal process in the Baltic Sea commenced with an inflow of about 200 km3 of cold and well oxygenated water from the Kattegat, half of which was of salinity >17 PSU; it is considered to be the most important inflow since 1993. Related front propagation and the ventilation of anoxic waters between the western and the central Baltic were recorded by the Darss Sill measuring mast, the Arkona Basin buoy, a subsurface mooring in the Eastern Gotland Basin, and hydrographic research cruises conducted in January, February, March, May and August 2003. Already in May, the central Gotland Basin was reached by water with near-bottom oxygen concentrations among the highest ever recorded there. A comprehensive review of the observed spatial and temporal structures together with additional background data is presented. Estimates of the intensity of the present inflow are discussed.
Źródło:
Oceanologia; 2003, 45, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synoptic changes in the deep rim current during stagnant hydrographic conditions in the Eastern Gotland Basin, Baltic Sea
Autorzy:
Hagen, E.
Feistel, R.
Powiązania:
https://bibliotekanauki.pl/articles/49138.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Gotland Basin
hydrography
deep water condition
current measurement
Baltic Sea
Baltic Monitoring Programme
Opis:
Hydrographic and current measurements are analysed for stagnant deep-water conditions over the south-eastern topographic flank of the Eastern Gotland Basin (EGB) in April 2000. Results suggest a prevailing barotropic motion mode on a synoptic scale of several days. Deep along-slope volume transports derived from subsurface current meter moorings are compared with those of the baroclinic fraction of geostrophic motions crossing the plane of a hydrographic section. This was aligned perpendicular to deep isobaths and was repeated 40 times with a time step of six hours. Changes in regional winds produced a quasi-ten day cycle in the filling level of the Baltic Proper. Associated wave-like fluctuations of the mass field propagated cyclonically with a velocity of about 0.04 m s−1 around the deep basin’s rim. It is concluded that associated changes in deep volume transports result mainly from barotropically governed advection processes and that those of the baroclinic component of geostrophic currents provide a qualitatively and quantitatively quite inaccurate description of related transport fluctuations on a daily scale.
Źródło:
Oceanologia; 2007, 49, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Surface waves in deep and shallow waters
Autorzy:
Massel, S.R.
Powiązania:
https://bibliotekanauki.pl/articles/48826.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
surface wave
deep
shallow water
dynamic factor
marine environment
atmosphere-ocean interaction
ocean form
air-sea interface
hydrodynamics
Opis:
The motion of water due to surface waves is the most dynamic factor observed in the marine environment. In this review various aspects of the wave modelling of non-linear, steep surface waves and their role in the atmosphere-ocean interaction are discussed. Significant improvements in wave forecasting have been made in the last ten years. This is to a large extent related to substantial progress in the description of wind forcing and other processes, as well as to the more efficient use of satellite observations and assimilation methods. One striking observation is the increasing variety and complexity of models in which more physical processes are implemented, greater precision and resolution achieved and extended ranges of applicability demonstrated. However, in order to evaluate the applicability of particular models, comparison with high quality experimental data, collected in nature or under laboratory conditions, is necessary.
Źródło:
Oceanologia; 2010, 52, 1; 5-52
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study on Addition of Surfactants Agents to Improve the Behavior of High Water Content Sediment for Rare Earth Mining in Deep Sea
Badanie wpływu odczynników powierzchniowych na poprawę właściwości osadu pod kątem głębinowego górnictwa pierwiastków rzadkich
Autorzy:
Sasaoka, Takashi
Hamanaka, Akihiro
Funatsu, Takahiro
Shimada, Hideki
Takahashi, Keisuke
Powiązania:
https://bibliotekanauki.pl/articles/318183.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Przeróbki Kopalin
Tematy:
deep sea mining
high water content sediment
rare earth
surfactants agent
górnictwo głębinowe
osad o dużej zawartości wody
pierwiastki ziem rzadkich
odczynniki powierzchniowe
Opis:
Importance of rare mineral metal resources is increasing currently. Therefore, the rare earth elements rich mud which exist on the deep-sea floor has the potential to be developed to fulfill their demand. As one of the effective mining method, a suction mining method is expected to apply to seabed mining. The seabed sediment containing rare earth element shows the very high water content, more than 100%. And the sediment movement during the suction is greatly affected by the water content (WC) and liquid limit (WL) of the material. Therefore, it is important to modify the liquid limit by adding a chemical agent to control the behavior of sediment. We selected eight different surfactants which can be divided into three types. They are dispersant type, water retention type, and thickener type. We carried out a liquid limit test and viscosity measurement of the sediment mixed with the agents. It is found that the water-absorbing polymer and the hydroxyethyl cellulose increase the liquid limit and viscosity. Whereas, the alkyl ammonium salt surfactant and the alkyl ammonium salt, alkyl aryl sulfonate blend decrease the liquid limit and viscosity. It is possible to control sediment behavior by adding suitable surfactants.
Złoża metali rzadkich są bardzo ważne a ich istotność wzrasta w ostatnich latach. Zatem, dno morskie, które zawiera duże ilości tego typu pierwiastków posiada potencjał do zaspokojenia potrzeb w tym zakresie. Jako jedną z efektywnych metod górniczych w tym aspekcie należy traktować ssanie. Osad denny z dna morskiego, który zawiera pierwiastki ziem rzadkich wykazuje bardzo dużą zawartość wody. Ruch osadu podczas ssania jest uzależniony w dużym stopniu od zawartości wody (WC) oraz krytycznego limitu cieczy (WL) materiału. Zatem, ważnym jest aby zmodyfikować limit cieczy poprzez dodatek odczynnika chemicznego w celu kontrolowania zachowania się osadu. Wybrano osiem różnych odczynników powierzchniowych, które mogą być podzielona na trzy typy. Są to odczynniki typu dyspergującego, typu retencji wody oraz typu zagęszczającego. Przeprowadzono test limitu cieczy i pomiaru lepkości osadu wymieszanego z odczynnikami. Stwierdzono, że polimer absorbujący wodę oraz hydroksyetyloceluloza zwiększają limit cieczy oraz lepkość. Z kolei, sól amoniowo-alkilowa oraz blenda alkiloarylosulfonianowa zmniejszają te wielkości. Możliwa jest kontrola zachowania się osadu poprzez dodatek odpowiednich odczynników powierzchniowych.
Źródło:
Inżynieria Mineralna; 2020, 2, 1; 183-188
1640-4920
Pojawia się w:
Inżynieria Mineralna
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 61

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