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Wyszukujesz frazę "Turek, A." wg kryterium: Autor


Tytuł:
Analysis of the needs for updates of the land and building register considering the procedure of exclusion of agricultural land from production
Autorzy:
Bielska, A.
Turek, A.
Powiązania:
https://bibliotekanauki.pl/articles/101239.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
land register
building register
exclusion
urbanised land
arable land
Zwoleński poviat
Opis:
Continuous economic development and expansion of urbanised land result in changes in land use. The rules of protection of arable and forest land, as well as reclamation and improvement of the useful value of land are regulated by the act of 3 February 1995 on the protection of arable and forest land with further amendments. The act particularly specifies the rules of changes in the purpose of arable and forest land, and rules of exclusion of arable and forest land from production. The change of purpose and exclusion of land from production are two basic legal instruments which must be considered by all entities planning for example conducting building investments on arable and forest land. The article presents the issue of the exclusion of arable land from production in the context of updates of land and building register. The scale of exclusions of land from production in Poland was determined. Detailed research was conducted in the Zwoleński poviat with agricultural character, located in the southern part of the Mazowieckie province. The analysis of the process of exclusion of arable land from production as well as changes in the structure of arable land use in the Zwoleński poviat in the years 2005-2014 was performed. The research employed report RRW-11 from the implementation of provisions on the protection of arable and forest land in the scope of exclusion of land from agricultural production, reclamation and management of land and resources, and exploitation of peat deposits. The structure of changes in arable land use was determined based on data from the land and building register obtained from the Poviat Office in Zwoleń. In the studied poviat, an evident increase in the area of developed and urbanised land was observed at the expense of arable land. Lack of systematic updates of the land and building register was also determined in the scope of data concerning the purpose of land in the study period.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2016, IV/3; 1633-1644
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The role of decellularization in biometarials manufacturing from xenogeneic tissues
Autorzy:
Turek, A.
Cwalina, B.
Powiązania:
https://bibliotekanauki.pl/articles/284144.pdf
Data publikacji:
2008
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
biomaterials
decellularization
xenogeneic tissues
Opis:
Biological heart valves have represented an important area of the tissue-derived biomaterials. Decellularization processes are considered to be useful for manufacturing of biodegradable scaffolds hich make it possible to create living and functioning tissues. These processes result in elimination of most disadvantages of GA-stabilized tissues. Acellular tissues may be obtained using various chemical, enzymatic and mechanical methods. Decellularization processes give the possibility of creating biomaterials for cell seeding which are not immunogenic, cytotoxic and calcifying.
Źródło:
Engineering of Biomaterials; 2008, 11, no. 77-80; 19-20
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Removal of priority PAHs from coking wastewater
Usuwanie priorytetowych WWA ze ścieków koksowniczych
Autorzy:
Turek, A.
Włodarczyk-Makuła, M.
Powiązania:
https://bibliotekanauki.pl/articles/396671.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
oxidation
industrial wastewater
analysis of PAHs
utlenianie
ścieki koksownicze
ścieki przemysłowe
analiza WWA
Opis:
The purpose of these tests described in this study was to determine the effectiveness of removing eight aromatic compounds from the list of priority. Tests were carried out using coke produced during wastewater treatment of coke oven gas. The technology research was consisted in introducing into wastewater samples taken with 30% solution of hydrogen dioxide (50 mg/dm3, 100 mg/dm3, 300 mg/dm3, 600 mg/dm3, 900 mg/dm3, 1000 mg/dm3, 2000 mg/dm3). The PAHs analysis included: sample preparation, quantitative and qualitative chromatographic determination, it was also carried out using gas chromatography coupled with mass spectrometer. Total concentration of PAHs in the effluent eight coke before oxidation was 23 μg/dm3. The largest loss of hydrocarbons examined, reaching 62%, was noted at the dose of 50 mg/dm3 of the oxidant.
Celem badań opisanych w pracy było określenie skuteczności usuwania ze ścieków koksowniczych ośmiu węglowodorów aromatycznych z listy związków priorytetowych. Badania technologiczne polegały na wprowadzeniu do pobranych próbek ścieków przyjętych ilości 30% roztworu ditlenku wodoru (50 mg/dm3, 100 mg/dm3, 300 mg/dm3, 600 mg/dm3, 900 mg/dm3, 1000 mg/dm3, 2000 mg/dm3). Analiza WWA obejmowała przygotowanie próbek oraz ilościowe i jakościowe oznaczenie chromatograficzne, które prowadzono z wykorzystaniem chromatografu gazowego sprzężonego ze spektrometrem masowym. Sumaryczne stężenie ośmiu WWA w ściekach koksowniczych przed procesem utleniania wynosiło 23 μg/dm3. Największy ubytek badanych węglowodorów, sięgający 62%, odnotowano przy dawce utleniacza wynoszącej 50 mg/dm3.
Źródło:
Civil and Environmental Engineering Reports; 2013, 10; 139-147
2080-5187
2450-8594
Pojawia się w:
Civil and Environmental Engineering Reports
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Catalytic oxidation of PAHs in wastewater
Katalityczne utlenianie WWA w ściekach
Autorzy:
Turek, A.
Włodarczyk-Makuła, M.
Powiązania:
https://bibliotekanauki.pl/articles/396729.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
oxidation
H2O2
GC-MS
coking wastewater
platinum catalyst
cobalt catalyst
titanium catalyst
PAHs
utlenianie
ścieki koksownicze
katalizator platynowy
katalizator tytanowy
WWA
Opis:
The aim of the investigations was to determine the effectiveness of the removal of 4, 5 -ring PAHs from coking wastewater using dihydrogen dioxide in the presence of a cobalt, platinum or titanium catalyst. A dose 7.4 mL of dihydrogen dioxide in the amount of and 14.8 mL/L of the analyzed sample were added to the samples. The samples were shaken and stored under laboratory conditions for 12 hours. The concentration of PAHs before and after the oxidation process were determined. The quantitative and qualitative chromatographic analysis was carried out using a gas chromatograph coupled with a mass spectrometer (GC-MS). The total concentration of 8 PAHs before oxidation reached the value of 9150 ng/L The concentration of 4-ring compounds and 5-ring PAHs were equal to 6390 ng/L and 2760 ng/L, respectively. The highest decrease (93%) the sum of 8 hydrocarbons using a dose of oxidizer 7.4 ml/L and in the presence of titanium catalyst was achieved.
Celem badania było określenie skuteczności usuwania 4, 5- pierścieniowych WWA ze ścieków koksowniczych przy użyciu ditlenku diwodoru w obecności katalizatora kobaltowego, platynowego i tytanowego. Do próbki dodawano odpowiednią ilość ditlenku diwodoru i katalizatorów. Dawka utleniacza wynosiła 7,4 ml i 14,8 ml/l. Próbki mieszano i pozostawiono w warunkach laboratoryjnych przez 12 godzin. Po tym czasie oznaczono stężenie WWA. Ilościową i jakościową analizę chromatograficzną przeprowadzono przy użyciu chromatografu gazowego sprzężonego ze spektrometrem masowym. Największy ubytek (93%) sumarycznej ilości ośmiu WWA osiągnięto przy zastosowaniu dawki utleniacza 7,4 ml/l analizowanych ścieków oraz katalizatora tytanowego.
Źródło:
Civil and Environmental Engineering Reports; 2016, No. 20(1); 179-190
2080-5187
2450-8594
Pojawia się w:
Civil and Environmental Engineering Reports
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Radioisotopic investigation of crosslinking density in bovine pericardium used as a biomaterial
Autorzy:
Turek, A.
Cwalina, B.
Kobielarz, M.
Powiązania:
https://bibliotekanauki.pl/articles/147957.pdf
Data publikacji:
2013
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
bioprostheses
bovine pericardium (BP)
crosslinking
methylene blue (MB)
photooxidation
radioisotopic investigations
Opis:
Stabilized bovine pericardium (BP) belongs to tissues routinely applied in production of heart valves. Commercial products are manufactured from tissues crosslinked by glutaraldehyde (GA). Dye-mediated photooxidation was also proposed as an alternative method, which allows for the elimination of clinical failures of GA-treated tissues. The aim of the study was to investigate the density of BP stabilized by GA and the methylene blue-mediated photooxidation, as compared with a native tissue. Crosslinking density was evaluated based on their ability to accumulate radioactive cobalt ions (60Co2+) and the permeability to these ions. Radioactivity was examined using a γ-spectrophotometer (Packard). The results showed the changes in the crosslinking density between the native tissues and photooxidized or GA-crosslinked tissues. Significant decreases in radioactivity were detected only in the thinnest tissues after photooxidation and in filtrates penetrating the same samples. Photooxidized pericardium of a larger thickness did not reveal any significant changes. Weight-dependence for the permeability was observed in the case of filtrates penetrating the GA-treated tissues. However, 60Co2+-accumulation in these samples remained at the same level. Photooxidation may lead to obtaining biomaterials with advantageous properties, i.e. a decreased calcium-binding capacity. Photooxidation efficiencies were dependent both on compactness and thickness of tissues and on process duration. It should be emphasized that the tissues’ structure after photooxidation was characterized by lower density. This may point to the presence of crosslinks of a smaller compactness in comparison with GA treatment. It has been shown that the factor indeed influencing the result of crosslinking is tissue thickness.
Źródło:
Nukleonika; 2013, 58, 4; 511-517
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chitosan-based nanocomposites as potential materials for nerve regeneration
Autorzy:
Turek, A.
Dudziński, K.
Stodolak-Zych, E.
Powiązania:
https://bibliotekanauki.pl/articles/284042.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
nanocomposites
chitosan
carbon fillers
guided nerve regeneration (GNR)
Opis:
The nanocomposite material based on chitosan was obtained and characterized. Commercially produced biopolymer at 85% deacetylization degree was used. The biopolymer matrix was modified with carbon nanofillers such as graphite oxide (GO), carbon nanotubes (CNTs) and nanontubes with the surface affected by carboxyl groups (CNT-COOH). The obtained nanocomposites were formed by means of two methods: casting (to manufacture nanocomposite foils) and liofilization (to manufacture porous nanocomposite materials). Their electrical properties and microstructure were examined. The tests proved that adding the carbon nano-filler results in high resistivity (graphite foils, carbon nanotubes) and also the average size of pores in liofilized materials. Additionally, the electric potential of the materials may be improved by surface processing (EPD- electrophoretic deposition). The described materials are an alternative to polymer nerve implants e.g. tubes or hydrogels which are already present on the market and applied to regenerate nerves.
Źródło:
Engineering of Biomaterials; 2014, 17, no. 128-129; 86-87
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ion flotation and solvent sublation of zinc(II) and manganese(II) in the presence of proton-ionizable lariat ethers
Autorzy:
Sobianowska-Turek, A.
Ulewicz, M.
Sobianowska, K.
Powiązania:
https://bibliotekanauki.pl/articles/109580.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
lariat ethers
ion flotation
solvent sublation
leaching
spent battery
Opis:
Competitive flotation and solvent sublation of Zn(II) and Mn(II) ions from diluted, model and experimental, aqueous solutions (after leaching of spent Zn-Mn battery) by proton-ionizable lariat ethers in the presence of octylphenylodecyl (ethylene glycol) ether (Triton X-100) as a nonionic foaming agent were investigated. The influence of ether crown size variations (from DB-16-C-5 through DB-19-C-6 to DB-22-C-7) on separation of zinc(II) and manganese(II) ions as well as influence of structural variation within the collectors (identity of the pendent acidic group and lipophilicity) and pH of the aqueous solutions were presented. It was found that among seven tested proton-ionizable lariat ethers, the most effective removal of Zn(II) and Mn(II) ions from diluted aqueous solutions may be achieved with the use of sodium 3-[sym-(Decyl)dibenzo-22-crown-7-oxy]propane-sulfonate).
Źródło:
Physicochemical Problems of Mineral Processing; 2016, 52, 2; 1048-1060
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of car vehicle class on volatile organic compounds (VOCs) concentration in microatmosphere of car cabin
Autorzy:
Janicka, A. B.
Reksa, M.
Sobianowska-Turek, A.
Powiązania:
https://bibliotekanauki.pl/articles/247600.pdf
Data publikacji:
2010
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
volatile hydrocarbons
indoor measurements
car vehicle cabin
Opis:
The inner atmosphere of a car vehicle became one of the most important environments of human life. Many elements inside of a car cabin are potential sources ofvolatile organic compounds (VOC's) which hazardous effect on human health is proved. To estimate quality of indoor air of a car the qualitative analysis of hydrocarbons is very important considering the fact that some substances (i.e. benzene, acetone and xylene isomers) despite low concentration level characterize toxic and carcinogenic properties. A significant impact on VOC's concentration has vehicle cabin eąuipment and quality of applied materials. The internal sources of the pollution are elements of cabin equipment (textiles, foams, plastic materials), solvents in glues, paints, lacąuers and car cosmetics. The external sources of the pollution are pollutants emitted to environment in gas phase by mobile or static sources. This paper presents the results of the research which aim was qualitative and quantitative analysis of VOC's concentration inside of various classes of car vehicle cabins. The research was done in Emission Research Laboratory of the Division of Motor vehicles and Internal Combustion Engines. The analysis was done according to European standard (EN ISO 16017-1: 2006) on gas chromatograph (Varian 450 GC) eąuipped in capillary column and flame-ionization detector (FID). Keywords: Volatile hydrocarbons, indoor measurements, car vehicle cabin.
Źródło:
Journal of KONES; 2010, 17, 4; 207-212
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of active ceramic coating implementation on gasoline engine exhaust toxicity
Autorzy:
Janicka, A. B.
Walkowiak, W.
Sobianowska-Turek, A.
Powiązania:
https://bibliotekanauki.pl/articles/243998.pdf
Data publikacji:
2010
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
inner catalyst
exhaust toxicity
internal combustion engine
exhausts toxicity
Opis:
One of the ways for toxic emissions reduction from internal combustion engines, beside external Exhaust purification systems and alternative fuels, is direct intervention into engine combustion process. The inner catalyst application, in form of ceramic active coating applied inside of combustion chamber, is one of the examples of that kind of solution. The application of active coating inside of a compression-ignition engine (diesel engine) may have an important impact on several stages of combustion process: fuel cracking, fore-flame phase, combustion phase and secondary combustion phase. Investigations of such construction are very rare in the literature. The paper presents the results of the researches which aim was analysis of inner catalyst application impact on toxic emissions. As a catalyst platinum and rhodium was used. As a catalyst support and local thermal barrier a zirconium ceramic coating was used. The catalyst was located on the gasoline engine valves surface. The research was done in Emission Research Laboratory of the Division of Motor Vehicles and Internal Combustion Engines. The analysis was done according to European standard (EN ISO 16017-1: 2006) on gas chromatograph (Yarian 450 GC) equipped in capillary column and flame-ionization detector (FID). The results of the researches proofed effectiveness of that solution on toxic emissions limitation.
Źródło:
Journal of KONES; 2010, 17, 3; 149-154
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of bottom sediments on the content of heavy metals in meadow soils
Autorzy:
Kabzińska, K.
Szczesio, M.
Świętosławski, J.
Turek, A.
Powiązania:
https://bibliotekanauki.pl/articles/184612.pdf
Data publikacji:
2015
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
soil
bottom sediment
anthropogenic fractions of metals
AAS method
Opis:
The objects of the study were grasslands situated along the watercourse that collect matter directly from surface runoff from the surrounding fields and ditches. Therefore, the chemical composition of the bottom sediments can be varied. The aim of the study was to determine the content of anthropogenic fractions of selected heavy metals in meadow soils where the material from the watercourse maintenance was stored. Soil samples were collected along the banks of the Witonia “A” Channel (soil with sediment), and 30 meters from the watercourse (soil without sediment). The pH of soils without sediment was in the range 6.2–6.6, whereas the soil with sediment had a pH ≥ 7.0. The content of organic matter was 5.7–31.5%. The concentration of anthropogenic fractions of elements was determined by atomic absorption spectrometry after extraction with a (1 + 4) HCl solution. The anthropogenic enrichment coefficients (AEC) calculated in relation to the geochemical background level, were within the range: 0.9–2.8 for Zn, 1.2–3.5 for Cu, 0.7–3.1 for Pb, 1.0–2.8 for Ni and 0.3–0.9 for Cd. The AEC values for lead, copper, cadmium and nickel were usually higher in samples without sediment. A significant correlation between the metal and organic content ( R2 = 0.7–0.9) was found. On two sites, the level of heavy metals under investigation shows a significant local influence from anthropogenic pressure.
Źródło:
Geology, Geophysics and Environment; 2015, 41, 1; 25-32
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Organic compounds emission from modified, biomass fueled small-scale boiler
Emisja związków organicznych ze zmodyfikowanego kotła małej mocy zasilanego biomasą
Autorzy:
Janicka, A.
Janicki, M.
Sobianowska-Turek, A.
Szczepaniak, W.
Powiązania:
https://bibliotekanauki.pl/articles/387718.pdf
Data publikacji:
2013
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
small-scall boiler
low emission
volatile organic compounds
inner catalyst
kotły małej mocy
niska emisja
lotne związki organiczne
katalizator wewnętrzny
Opis:
The low emission problem, visible not only in cities but also in agriculture areas, strongly concerns quality of human life and it is connected with small-scall boilers with are heat-suppliers for individual households. The exhaust gases emitted during incorrect fuel combustion process consist mutagenic, genotoxic, irritant and carcinogenic organic substances like volatile organic compounds (VOCs) or polyaromatic hydrocarbons (PAHs). Those substances are dangerous for human health, part of them are very reactive becoming source of secondary pollution, part of them have ability to cumulate in environment. To avoid health problems connected with low emission and toxic organic compounds pollution it is necessary to develop the solutions for non-effective fuel combustion process prevention. The paper presents the results of research work which aim was investigation of small-scall, biomass fueled boiler modifications in aspect of volatile organic compounds emission reduction. The special catalytic-activated ceramic and metal construction was applied inside the combustion space. VOCs and PAHs in exhausts was determined by Varian 450 gas chromatograph. The results, presented in tables and figures, show that applied modification based on ceramic and ceramic activated fittings change significantly emission characteristic reducing VOCs and PAHs concentration in the exhaust but the changes trends are discussible.
Problem niskiej emisji, dotykający w szczególny sposób jakości życia człowieka zarówno w aglomeracjach miejskich, jak i osadach wiejskich, związany jest nieodłącznie z kotłami małej mocy zasilającymi indywidualne gospodarstwa domowe w ciepło. Spaliny emitowane podczas niepoprawnego (niepełnego) prowadzenia procesu spalania paliw w tzw. małych kotłach zawierają groźne dla zdrowia ludzkiego związki z grup Lotnych Związków Organicznych (LZO). Substancje te charakteryzuje mutagenne oraz kancerogenne działanie na organizmy żywe i całe ekosystemy, nawet przy niewielkich poziomach stężeń oraz zdolność do kumulowania się w środowisku. W celu ochrony środowiska i zdrowia ludzi niezbędne jest opracowanie rozwiązań umożliwiających redukcję, tak charakterystycznych dla procesów spalania w nieefektywnych kotłach grzewczych, stężeń szkodliwych substancji węglowodorowych. W artykule przedstawiono wyniki pracy badawczej, której celem było badanie wpływu modyfikacji przestrzeni spalania w kotle małej mocy zasilanego biomasą na emisję lotnych związków organicznych. W przestrzeni spalania kotła wprowadzono zmiany konstrukcyjne polegające na wprowadzeniu kształtek o własnościach katalitycznych. Oznaczenie LZO w spalinach wykonywano metodą chromatografii gazowej za pomocą aparatu Varian 450 GC. Wyniki zaprezentowano w postaci tabel i rysunków.
Źródło:
Ecological Chemistry and Engineering. A; 2013, 20, 7-8; 909-917
1898-6188
2084-4530
Pojawia się w:
Ecological Chemistry and Engineering. A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A comparison of the effectiveness of the microscopic method and the multiplex PCR method in identifying and discriminating the species of Nosema spp. spores in worker bees (Apis mellifera)from winter hive debris
Autorzy:
Michalczyk, M.
Sokol, R.
Szczerba-Turek, A.
Bancerz-Kisiel, A.
Powiązania:
https://bibliotekanauki.pl/articles/32256.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
The objective of this study was to compare the effectiveness of the multiplex PCR method and traditional light microscopy in identifying and discriminating the species of Nosema spp. spores in worker bees from winter hive debris in the Province of Warmia and Mazury (NE Poland). A total of 1000 beesdead after from the bottom of the hive from bee colonies were analyzed. Spores were identified with the use of a light microscope (400-600x magnification). Spores were assigned to species by the multiplex PCR method. The microscopic evaluation revealed the presence of Nosema spp. spores in 803 samples (80.3%). Nosema ceranae spores were observed in 353 positive samples (43.96%), Nosema apis spores were found in 300 samples (37.35%), while 150 samples (19.67%) showed signs of a mixed infection. A multiplex PCR analysis revealed that 806 samples were infested with Nosema spp., of which 206 were affected only by Nosema ceranae, 600 showed signs of mixed invasion, while no samples were infected solely by Nosema apis parasites. In two cases, the presence of spores detected under a light microscope was not confirmed by the PCR analysis. The results of the study indicate that Nosema ceranae is the predominant parasitic species found in post-winter worker bees from the bottom of the hive in the region of Warmia and Mazury.
Źródło:
Polish Journal of Veterinary Sciences; 2011, 14, 3
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sequence variants of Yersinia enterocolitica ystB gene detected in wild animals in Poland
Autorzy:
Pieczywek, M.
Bancerz-Kisiel, A.
Szczerba-Turek, A.
Szweda, W.
Powiązania:
https://bibliotekanauki.pl/articles/2087747.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Yersinia enterocolitica
ystB gene
phylogenetic analysis
Źródło:
Polish Journal of Veterinary Sciences; 2018, 21, 2; 397-399
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Content of mercury and cadmium in the stream of spent zinc-carbon batteries
Zawartość rtęci i kadmu w strumieniu zużytych baterii cynkowo-węglowych
Autorzy:
Sobianowska-Turek, A.
Szczepaniak, W.
Marcinkowski, T.
Zamorska-Wojdyła, D.
Powiązania:
https://bibliotekanauki.pl/articles/388784.pdf
Data publikacji:
2013
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
zinc-carbon batteries
mercury
cadmium
baterie cynkowo-węglowe
rtęć
kadm
Opis:
According to EU Directive 2006/66/EC it is prohibited to sale batteries and accumulators containing more than 0.0005 wt. % mercury by weight and 0.002 wt. % of cadmium (except for special purpose batteries and button cells, in which the content of mercury should not exceed 2 % by weight). In the stream of zinc-carbon batteries reaching the Polish market (and later the processing plants) one can find a large number of such that do not have information about the content of mercury and cadmium. The quantitative study of these two types of metals in particular parts of the zinc-carbon batteries type R6, standard AA, and in the stream of spent zinc-carbon batteries for recycling was described. Obtained results are showing that overall cadmium content in individual elements of tested batteries, referenced to the total weight of the battery does not exceed the value permissible by the EU Directive in the amount of 0.002 % by weight of Cd in each of the analyzed batteries. However, the overall mercury content in individual parts of tested batteries for three of them exceeds the value permissible by the EU Directive (Directive 2006/66/EC, 2006), showing the amount of 0.0005 % of Hg by weight.
Dyrektywa unijna dotycząca baterii i akumulatorów oraz ich odpadów [1] zakazuje sprzedaży baterii i akumulatorów zawierających więcej niż 0,0005 % wagowych rtęci oraz 0,002 % kadmu (z wyjątkiem baterii specjalnego przeznaczenia i ogniw guzikowych, w których zawartość rtęci nie powinna przekroczyć 2 % wagowych). Jednak w strumieniu baterii cynkowo-węglowych trafiających na polski rynek (a później do zakładów przetwórczych) znajduje się duża ilość takich, na których nie ma informacji o zawartości rtęci i kadmu. Ten stan rzeczy powoduje, iż przedsiębiorstwa zajmujące się recyklingiem odpadów bateryjnych metodami piro-, jak i hydrometalurgicznymi mają problemy technologiczne podczas przeróbki tych odpadów. W pracy przedstawiono próbę oszacowania ilości tych dwóch metali w poszczególnych elementach baterii cynkowo-węglowych typu R6, standard AA oraz w strumieniu zużytych baterii cynkowo-węglowych trafiających do recyklingu.
Źródło:
Ecological Chemistry and Engineering. A; 2013, 20, 4-5; 573-583
1898-6188
2084-4530
Pojawia się w:
Ecological Chemistry and Engineering. A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nanostructure of bovine pericardium treated with trypsin
Autorzy:
Turek, A.
Marcinkowski, A.
Trzebicka, B.
Cwalina, B.
Dzierżewicz, Z.
Powiązania:
https://bibliotekanauki.pl/articles/285856.pdf
Data publikacji:
2009
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
nanostructure
bovine pericardium (BP)
collagen fibers
trypsin
Opis:
Various methods of xenogeneic tissues stabilization have been proposed for the purpose of preparing many tissue-derived biomaterials. One of the most important treatments that may lead to obtaining the good-quality tissue biomaterials seems to be decellularization of such tissues. This process may contribute to the reduction of the most frequent failures resulting from the tissues stabilization. The aim of this work was to determine nanostructure of trypsin-treated bovine pericardium, using atomic force microscopy (AFM). The treatment of bovine pericardium with trypsin in EDTA solution resulted in non significant changes in tissue’s morphology. Demonstrated AFM studies of these tissues revealed no failures on the fibers’ surface in the nanoscale. Thus, our results confirm the expec-tation that decellularization may be considered as one of the most promising methods of the allogeneic and xenogeneic tissues stabilization.
Źródło:
Engineering of Biomaterials; 2009, 12, no. 89-91; 30-32
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł

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