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Tytuł:
Platelet-rich plasma, platelet-rich fibrin, and enamel matrix derivative for oral mucosal wound healing
Autorzy:
Vokurka, J.
Hromcik, F.
Faldyna, M.
Gopfert, E.
Vicenova, M.
Pozarova, L.
Izakovicova Holla, L.
Powiązania:
https://bibliotekanauki.pl/articles/2087323.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
platelet-rich plasma
platelet-rich fibrin
wound healing
dental enamel proteins
artificial membranes
Źródło:
Polish Journal of Veterinary Sciences; 2020, 23, 2; 169-176
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energetic Nitrogen-Rich Polymers Based on Cellulose
Autorzy:
Betzler, F. M.
Klapötke, T. M.
Sproll, S.
Powiązania:
https://bibliotekanauki.pl/articles/358514.pdf
Data publikacji:
2011
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
energetic polymer
nitrogen rich polymer
cellulose
tetrazole
nitramine
Opis:
New nitrogen-rich polymers, based on cellulose, were synthesized using common procedures. The point of interest was the introduction of tetrazole and nitramine moieties. The polymers were characterized by elemental analysis and vibrational spectroscopy (IR). The energetic properties were investigated using differential scanning calorimetry and bomb calorimetric measurements. Several detonation parameters, such as the detonation pressure, velocity, energy and temperature were computed using the EXPLO5 code. In addition, the sensitivities towards impact and friction were tested using the BAM drophammer as well as a friction tester.
Źródło:
Central European Journal of Energetic Materials; 2011, 8, 3; 157-171
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rich Internet Applications – nowe oblicze Internetu
Autorzy:
Leszczyński, Jakub
Powiązania:
https://bibliotekanauki.pl/articles/2196972.pdf
Data publikacji:
2005-08
Wydawca:
Uniwersytet Warszawski. Wydawnictwo Naukowe Wydziału Zarządzania
Opis:
Celem niniejszego artykułu jest przedstawienie nowego modelu budowy aplikacji internetowych jako odpowiedzi rynku na rosnące potrzeby użytkowników Sieci oraz ograniczenia aktualnie stosowanych technik tworzenia i dostarczania serwisów internetowych. W pierwszej części artykułu zaprezentowano główne ograniczenie współczesnych technik tworzenia aplikacji opartych o język HTML oraz ich negatywny wpływ na wykorzystywanie przez użytkowników wszystkich możliwości, jakie daje Internet. W drugiej części zaprezentowano nowy model budowy aplikacji internetowych, zapewniający lepszą interakcję użytkowników z aplikacją internetową oraz przykładowy opis ich działania. Przedstawiono również wpływ nowej technologii na rozwiązania e-biznesowe i doświadczenia użytkowników w pracy z nową generacją aplikacji internetowych.
Źródło:
Studia i Materiały; 2005, 1; 28-34
1733-9758
Pojawia się w:
Studia i Materiały
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Macroeconomic Stability in Resource-rich Countries: The Role of Fiscal Policy
Autorzy:
Bova, Elva
Medas, Paulo
Poghosyan, Tigran
Powiązania:
https://bibliotekanauki.pl/articles/565652.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Warszawski. Wydawnictwo Naukowe Wydziału Zarządzania
Tematy:
commodity prices
resource-rich countries
procyclical fiscal policy
fiscal rules
Opis:
Resource-rich countries face large and persistent shocks, especially coming from volatile commodity prices. Given the severity of the shocks, it would be expected that these countries adopt countercyclical fiscal policies to help shield the domestic economy, either through larger spending at times of commodity busts or lower spending during commodity booms. Taking advantage of a new dataset covering 48 non-renewable commodity exporters for the period 1970–2014, we investigate whether fiscal policy does indeed play a stabilizing role. Our analysis shows that fiscal policy tends to have a procyclical bias (mainly via expenditures) and, contrary to others, we do not find evidence that this bias has declined in recent years. Further, we find that the adoption of fiscal rules does not seem to reduce procyclicality in a significant way, but the quality of political institutions does matter. Finally, we find that non-commodity revenues tend to respond only to persistent changes in commodity prices.
Źródło:
Journal of Banking and Financial Economics; 2018, 1(9); 103-122
2353-6845
Pojawia się w:
Journal of Banking and Financial Economics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Calcination of Aluminum Chloride Hexahydrate (ACH) for Alumina Production: Implications for Alumina Extraction from Aluminum Rich Fly Ash (ARFA)
Autorzy:
Zhao, L.
Powiązania:
https://bibliotekanauki.pl/articles/354384.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
calcination
aluminum chloride hexahydrate
alumina rich fly ash
acid leaching
Opis:
Alumina rich fly ash (ARFA) has been regarded as the alternative to bauxite in China. Hydrochloric acid process could be favored for alumina extraction, necessitating calcination of aluminum chloride hexahydate (ACH). In this work, the TGA/DSC results of ACH were used to suggest calcination procedures. Two-step calcinations of 200-1000°C and 350-1000°C did not increase the surface area of alumina, by comparison with one step 1000°C calcination, and a slow heating rate could improve the surface area. Calcination temperature was increased from 950 to 1250°C in a step of 50°C, and XRD, XRF, BET and gas pycnometer were used to characterize the alumina from calcinated ACH. Consistent results were obtained by these different techniques, and two groups of impurities were identified and related to alumina purity and surface area. By comparison with clays, it was suggested to remove impurities such as MgO, Na2 O, K2 O, P2 O5 and SO3 in hydrochloric acid leaching of ARFA.
Źródło:
Archives of Metallurgy and Materials; 2018, 63, 1; 235-240
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydrogeochemia szczaw zapadliska Kudowy
Hydrogeochemistry of CO2-rich waters from the Kudowa depression
Autorzy:
Wiktorowicz, B.
Powiązania:
https://bibliotekanauki.pl/articles/2062943.pdf
Data publikacji:
2009
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
szczawy
hydrogeochemia
modelowanie hydrogeochemiczne
zapadlisko Kudowy
hydrogeochemistry
CO2-rich waters
hydrogeochemical modelling
Kudowa depression
Opis:
W artykule przedstawiono wyniki ilościowej analizy związku środowiska skalnego ze składem chemicznym szczaw i wód kwasowęglowych występujących w obrębie zapadliska Kudowy. Do realizacji pracy wykorzystano modelowanie hydrogeochemiczne, które przeprowadzono przy użyciu programu komputerowego WATEQ4F. Stan nasycenia ilościowo oceniony został przez wskaźnik nasycenia SI. Interpretację stanu nasycenia ograniczono do najważniejszych minerałów skałotwórczych budujących ośrodek wodonośny, Stwierdzono, że minerałami decydującymi o równowadze hydrogeochemicznej szczaw i wód kwasowęglowych Kudowy-Zdroju są kalcyt, dolomit, grupa skaleni i illit.
The paper presents the results of hydrogeochemical modelling of CO2-rich waters from the Kudowa area. The analysis of water saturation was based on calculations carried out with the use of the WATEQ4F code. The saturation state was estimated quantitatively using the Saturation Index (SI). Interpretation of the saturation state was limited to the most important rock-forming minerals. Minerals regulating the hydrogeochemical equilibrium in COZ-rich waters in Kudowa Spa are principally calcite, dolomite, feldspars and illite.
Źródło:
Biuletyn Państwowego Instytutu Geologicznego; 2009, 436, z. 9/2; 523-528
0867-6143
Pojawia się w:
Biuletyn Państwowego Instytutu Geologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal Decarboxylation of Betacyanins in Red Beet Betalain-Rich Extract
Autorzy:
Kumorkiewicz, Agnieszka
Sutor, Katarzyna
Nemzer, Boris
Pietrzkowski, Zbigniew
Wybraniec, Sławomir
Powiązania:
https://bibliotekanauki.pl/articles/1369582.pdf
Data publikacji:
2020
Wydawca:
Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
Tematy:
decarboxylation
red beet root
colorants
betanin
betalain-rich extract
decarboxy-betacyanins
Opis:
Betalains are one of the most common groups of plant pigments found in nature, especially in red beetroot (Beta vulgaris L.) which is the main commercially exploited source of betalains produced in the form of concentrates or powders. This report presents results of thermal decarboxylation studies on betacyanins present in a specifically purified highly concentrated betalain-rich extract (BRE). The first tentative structures formed by decarboxylation of the main pigment present in BRE, betanin and its diastereomer, were established by means of liquid chromatography coupled to diode array detection and electrospray ionization tandem mass spectrometry (LC-DAD-ESI-MS/MS). In the extract, two new isomeric bidecarboxylated betanins were tentatively identified. A high rate of generation of 2-decarboxy-betanin/-isobetanin which are present in the BRE extract at very low level was observed, which was dependent on the starting concentration of the BRE substrate. The bidecarboxylated derivatives were generated at a higher rate mostly from 17-decarboxy-betanin/-isobetanin as well as 15-decarboxy-betanin by further decarboxylation at carbon C-2. Further studies will be performed to demonstrate if the decarboxylated betanins being products of heating B. vulgaris preparations can be used for various food applications with new health-promoting actions and colorant properties.
Źródło:
Polish Journal of Food and Nutrition Sciences; 2020, 70, 1; 7-14
1230-0322
2083-6007
Pojawia się w:
Polish Journal of Food and Nutrition Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evolutionary learning of rich neural networks in the Bayesian model selection framework
Autorzy:
Matteucci, M.
Spadoni, D.
Powiązania:
https://bibliotekanauki.pl/articles/907642.pdf
Data publikacji:
2004
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
sieć neuronowa
model Bayesa
algorytm genetyczny
Rich Neural Networks
Bayesian model selection
genetic algorithm
Bayesian fitness
Opis:
In this paper we focus on the problem of using a genetic algorithm for model selection within a Bayesian framework. We propose to reduce the model selection problem to a search problem solved using evolutionary computation to explore a posterior distribution over the model space. As a case study, we introduce ELeaRNT (Evolutionary Learning of Rich Neural Network Topologies), a genetic algorithm which evolves a particular class of models, namely, Rich Neural Networks (RNN), in order to find an optimal domain-specific non-linear function approximator with a good generalization capability. In order to evolve this kind of neural networks, ELeaRNT uses a Bayesian fitness function. The experimental results prove that ELeaRNT using a Bayesian fitness function finds, in a completely automated way, networks well-matched to the analysed problem, with acceptable complexity.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2004, 14, 3; 423-440
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Methane production from fat-rich materials
Produkcja metanu z substratów bogatych w tłuszcze
Autorzy:
Worwąg, M.
Neczaj, E.
Grosser, A.
Krzemińska, D.
Powiązania:
https://bibliotekanauki.pl/articles/395749.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
odpady tłuszczowe
kofermentacja
biogaz
fat-rich waste
co-fermentation
production of biogas
Opis:
Waste materials containing a lot of fats seem to be an attractive substrate for production of methane through the fermentation process. Yet, due to a changing content of reagents and the high concentration of higher fatty acids, they must be stabilized along with other biodegradable wastes in the process of co-fermentation. This process results in a higher fermentation-grade and a greater volume of produced biogas. However, the methane fermentation of sewage sludges or sewage containing higher fatty acids may be problematical, and requires widespread studies in order to get a better understanding of this process.
Odpady zawierające wysoką zawartość tłuszczów wydają się najbardziej atrakcyjnym substratem do produkcji metanu w procesie fermentacji. Z uwagi na zmienny skład reagentów oraz znaczne stężenia wyższych kwasów tłuszczowych muszą być one stabilizowane z innymi biodegradowalnymi odpadami w procesie kofermentacji. W procesie kofermentacji dochodzi do rozcieńczenia substancji toksycznych oraz poprawy równowagi nutrientowej. Ponadto obserwuje się wyższy stopień przefermentowania osadów i większą produkcję biogazu. Podczas stabilizacji beztlenowej, tłuszcze w pierwszym etapie są hydrolizowane do wyższych kwasów tłuszczowych oraz glicerolu. W kolejnych fazach wyższe kwasy tłuszczowe oraz glicerol rozkładane są do kwasów lotnych, octanu i wodoru. Mimo, że hydroliza uważana jest za fazę limitującą jeden z etapów konwersji tłuszczy, niektórzy autorzy wskazują iż proces ten zależy od czasu zatrzymania osadu (SRT). Przy SRT poniżej 8 dni dochodzi do akumulacji wyższych kwasów tłuszczowych i inhibicji całego procesu fermentacji. Jednakże fermentacja metanowa osadów ściekowych lub ścieków zawierających tłuszcze na wysokim poziomie może być problematyczna. Główne problemy spowodowane przez tłuszcze podczas stabilizacji beztlenowej to pienienie, flotacja osadów, zapychanie się instalacji oraz nieprzyjemne odory. Tak więc kofermentacja odpadów z dużą zawartością tłuszczy może być problematyczna i wymaga dalszych badań mających na celu wyjaśnienie tego procesu.
Źródło:
Civil and Environmental Engineering Reports; 2011, 6; 147-162
2080-5187
2450-8594
Pojawia się w:
Civil and Environmental Engineering Reports
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mid-Cretaceous spicule-rich turbidites in the Silesian Nappe of the Polish Outer Carpathians : radiolarian and foraminiferal biostratigraphy
Autorzy:
Bąk, M.
Bąk, K.
Ciurej, A.
Powiązania:
https://bibliotekanauki.pl/articles/2058910.pdf
Data publikacji:
2005
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Outer Carpathians
middle-upper Cenomanian
spicule-rich turbidites
radiolarians
foraminifers
biostratigraphy
Opis:
Spicule-rich turbidites are widespread in mid-Cretaceous deep-water flysch of the Subsilesian and Silesian units in the Polish Outer Carpathians. The spicule-richmaterial with an admixture of numerous radiolarian and foraminiferal particles was supplied, together with siliciclastic material, from shallow environments, mostly from the northern margin of the Carpathian Basin. We present new data on the age of these deposits in the Silesian Nappe, where they are distinguished as the Mikuszowice Cherts. This unit is composed of mediumand thick-bedded siliciclastic to calcareous turbidites including bluish cherts in their middle and upper parts and of thin non-calcareous hemipelagic shales.We have studied radiolaria and foraminifera from hemipelagic sediments and spicule-rich turbidites, from two continuous sections in the Barnasiówka Range (BeskidWyspowyMts.) that included theMikuszowice Cherts (31 m thick) and their transition into the surrounding units. The age of the Mikuszowice Cherts was determined taking into account the following radiolarian datum events: (1) the occurrence of Praeconocaryomma lipmanae in the entire unit, (2) the FO (first occurrence) of Hemicryptocapsa tuberosa in the upper part of the unit, (3) the FO of Amphipyndax stocki close to the upper boundary of the unit, (4) the FO of Hemicryptocapsa prepolyhedra in the lowermost part of the overlying Barnasiówka Radiolarian Shale Formation. These datum events appear successively in theWestern Tethys successions within the Rotalipora cushmani planktonic foraminiferal Zone, which corresponds to the middle and upper Cenomanian (except for its uppermost part). The foraminiferal assemblages, in which such taxa as Rotalipora cf. cushmani, R. cf. greenhornensis, whiteinellids and Uvigerinammina praejankoi successively appear, confirm the mid-late Cenomanian age of the spicule-rich turbidites in the Silesian Nappe.
Źródło:
Geological Quarterly; 2005, 49, 3; 275--290
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Platelet-rich plasma uterine infusion and pregnancy rate in barren mares with chronic degenerative endometritis
Autorzy:
Carluccio, A.
Veronesi, M.C.
Plenteda, D.
Mazzatenta, A.
Powiązania:
https://bibliotekanauki.pl/articles/2087302.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
horse
barren mares
platelet-rich-plasma
pregnancy rate
chronic degenerative endometritis
Źródło:
Polish Journal of Veterinary Sciences; 2020, 23, 3; 431-438
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The use of platelet-rich plasma in anti-aging therapy (overview)
Autorzy:
Chorążewska, Małgorzata
Piech, Piotr
Pietrak, Justyna
Kozioł, Maciej
Obierzyński, Paweł
Maślanko, Monika
Wilczyńska, Karolina
Tulwin, Tytus
Łuczyk, Robert
Powiązania:
https://bibliotekanauki.pl/articles/765465.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Mikołaja Kopernika w Toruniu. Wydział Nauk o Ziemi i Gospodarki Przestrzennej. Katedra Kultury Fizycznej
Tematy:
platelet-rich plasma, anti-aging therapy
Opis:
IntroductionAging stands for the changes in the human body, which are recognized as natural processes that concern every person and are related to the passage of time. Despite ‘normalness’ of the process, a tendency is emerging to treat aging as a pathology requiring proper diagnostics. Consequently, an ‘anti-aging’ medicine has been established - defined as study of preventing and slowing down the process of aging.Aim of the studyThe aim of this study is to summarize and present the current knowledge, based on the overview of writing on the properties and effectiveness of the use of PRP in anti-aging therapy.  Description of knowledge Autologous platelet-rich plasma is a concentrate of human blood platelets suspended in a small amount of plasma, wherein concentration of thrombocytes is higher than initial concentration. For autologous plasma to have high healing properties, platelet levels should be at least 1 million in 5 ml of plasma.The basic condition for initiating repair and regenerative processes in vivo is the formation of a blood clot. Also, by degranulating, platelets release many growth factors, such as PDGF, TGF-β, EGF, FGF, VEGF and others, which are involved not only in blood coagulation, but also in immune response and tissue healing.The large variety of PRP-obtaining methods and the range of concentration levels of growth factors in PRP may lead to ambiguity in the literature, as to the extent to which formulation was actually used in a variety of preclinical and clinical studies. Some of those studies are presented in this article. Summary Platelet-rich treatments are part of the growing popularity of regenerative medicine, which is beginning to be recognized as the medicine of the future. However, without proper control methods or optimization of numerous variables (e.g. concentration or ratio of growth factors) during PRP preparation, it is not known which ingredients are needed and preferred, and which are harmful for tissue regeneration.However, numerous studies show PRP injection as a promising method of rejuvenating the skin, therefore platelet-rich treatments are an important part of the growing popularity of regenerative medicine.
Źródło:
Journal of Education, Health and Sport; 2017, 7, 11
2391-8306
Pojawia się w:
Journal of Education, Health and Sport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new locality of Cephalathera rubra (L.) Rich. (Orchidaceae) in Lower Silesia
Autorzy:
Michalak, K.
Powiązania:
https://bibliotekanauki.pl/articles/790541.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Opis:
The paper presents a new locality of Cephalanthera rubra identified in summer 2015 in the Milicz Forest District, northern Lower Silesia, as well as describes potential threats, characteristics and habitat of the population.
Źródło:
Steciana; 2017, 21, 4
1689-653X
Pojawia się w:
Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Factors Affecting the Measurement of the Percentage of Gaseous Products from Boron-based Fuel-rich Propellants
Autorzy:
Liu, L.-L.
He, G.-Q.
Wang, Y.-H.
Liu, P.-J.
Powiązania:
https://bibliotekanauki.pl/articles/358720.pdf
Data publikacji:
2014
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
fuel-rich propellant
percentage gaseous products
combustion
filter media
Opis:
Acid-washed asbestos, carbon fibre, and MgO with carbon fibre were used as the filter media in order to compare their filtering qualities in the estimation of the percentage of gaseous products (PGP) arising from the combustion of singlebase propellants, double-base propellants, and boron-based fuel-rich propellants. The comparison was based on an analysis of the experimentally registered influence of the propellant formulation, the propellant load, the maximum chamber pressure and the thickness of the MgO filter layer on the PGP from the fuel-rich propellant, and in particular on the PGP produced by combustion of boron-based fuel-rich propellant. The results showed that the experimental values of the PGP were closer to the theoretically predicted values when carbon fibre mixed with MgO powder was used as the filter medium. The PGP of boron-based fuel-rich propellant increased when the AP was in part replaced by HMX, when the AP content was increased and when boron was in part replaced by magnesium-aluminum alloy. In terms of the apparatus used in these experiments, the propellant loading density was found to have little correspondence with the PGP for boron-based fuel-rich propellant. The optimal propellant loading density for the chamber volume of 85 cm3 was found to be 2-2.5 g, in view of the reliability and safety of the experiment. It is emphasised that the thickness of the MgO filter layer is very important for the accuracy and reliability of the experiment, and that the optimum should be determined by experiment.
Źródło:
Central European Journal of Energetic Materials; 2014, 11, 1; 15-29
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydrogen rich gases combustion in the IC engine
Autorzy:
Szwaja, S.
Powiązania:
https://bibliotekanauki.pl/articles/245372.pdf
Data publikacji:
2009
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
syngas
coke gas
hydrogen
combustion
Opis:
Experimental results of combusting three different syngases in an internal combustion (IC) spark ignition engine are presented in this paper. The syngases used for tests varied each from the other with hydrogen content, which was of 10,15 and 60%. Other combustible gases as CO and CH4 were also changed. Thus, the lower heating value of the syngases was of 2.7, 4.6 and 17.2 MJ/nm3, respectively. Combustion tests were performed at stoichiometric ratio of syngas-air mixture, with variable spark timing and constant compression ratio of 10. On the basis of in-cylinder combustion pressure histories the indicated mean effective pressure (IMEP) was computed and presented versus spark timing and vs location of the middle combustion phase expressed by the 50% of mass fraction burned (MFB). Additionally, the 0-10% MFB and 10-90% MFB were also determined. Furthermore, the paper contains theoretical determination of the three fuel quantities, which can affect combustion duration and heat release rate during burning the syngases in the IC engine. They are as follows: laminar flame speed, ignition delay and adiabatic flame temperature. Final results does not show satisfactory correlation between LFS computed at NTP and real combustion phasing. Furthermore, both long combustion duration and long 0-10% MFB leading to unstable combustion were observed for the syngas with the lowest LHV of 2.7 MJ/nm3.
Źródło:
Journal of KONES; 2009, 16, 4; 447-454
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Osocze bogatopłytkowe, a proces starzenia się skóry
A rich plasma vs. the aging process
Autorzy:
Kurek, Monika
Powiązania:
https://bibliotekanauki.pl/articles/526838.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Opolski. Instytut Nauk o Zdrowiu
Tematy:
starzenie się skóry
PRP, osocze bogatopłytkowe
białka krwi
czynnik wzrostu
biostymulacja
skin aging process
PRP
rich plasma
blood proteins
growth factor
biostimulation
Opis:
Organizm człowieka ma ogromne zdolności regeneracyjne, dlatego od kilku lat w medycynie estetycznej trwają intensywne badania nad zastosowaniem przeszczepów własnych komórek w celu „odmłodzenia skóry“. Własny materiał jest zawsze najbezpieczniejszy, a elementy składowe stanowiące o właściwościach skóry,takie jak: kolagen, elastyna czy kwas hialuronowy tworzą bardzo skomplikowane wzajemnie łączące się struktury. PRP - to zabieg z grupy zabiegów biostymulacyjnych. Biostymulacja w ostrzykiwaniu krwią opiera się głównie na wykorzystaniu czynników wzrostu uwalnianych z trombocytów, a wpływających bezpośrednio na procesy regeneracyjne skóry. Dzięki zastosowaniu osocza bogatopłytkowego możemy uniknąć powikłań powstających podczas używania innych wolumetrycznch wypełniaczy syntetycznych, a dzięki wykorzystaniu czynników wzrostu z własnej krwi dłużej cieszyć się młodością.
The human body has enormous regenerative abilities. Therefore, for the last several years, there has been an intensive research going on in the field of esthetic medicine on the use of our own cell transplantations in order to rejuvenate the skin. The material is always the safest and the components forming the properties of the skin, such as collagen, elastin and hyaluronic acid, form very complicated and mutualy connected structures. PRP is a procedure which belongs to a group of biostimulating treatments. Biostimulation in injecting the blood is mainly based on the use of growth factors released from thrombocytes and affecting the skin regeneration process directly. By the use of rich plasma and the growth factors from our own blood, we can avoid complications arising during the process of using other synthetic and volumetric fi llers and enjoy longer youth.
Źródło:
Puls Uczelni; 2012, 1; 11-13
2080-2021
Pojawia się w:
Puls Uczelni
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Exercise induced muscle damage may be improved by a single dose of intra-muscular platlet rich plasma: a pilot study
Autorzy:
Punduk, Zekine
Oral, Onur
Aydinoglu, Ramazan
Ozkayin, Nadir
Powiązania:
https://bibliotekanauki.pl/articles/1054588.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Tematy:
Platlet rich plasma
exercise induced muscle damage
muscle recovery
muscle soreness
Opis:
Platelet-rich plasma (PRP) is being increasingly used in the modern medicine as a material stimulating, regenerating and accelerating tissue healing, including muscle injuries in sports. The aim of the present study was to determine the effect of PRP on strength recovery in exercise induced muscle damage (EIMD). A baseline value was established in six healthy male volunteers during maximal voluntary strength isometric contractions (MVC) of the elbow flexors in both arms. This was followed by MVC performance (80% IRM) concentric-eccentric exercise of both elbow flexors until point of exhaustion, and 24 h later the subjects were injected with PRP in the non-dominant arm (PRP-arm). Maximal isometric strength and muscle soreness was compared before and at 24, 48, 72 and 96 h after delayed onset muscle soreness (DOMS) between the arms. The results indicate that the muscle soreness was significantly decreased in PRP administered arm when compared to control-arm, however, the levels for isometric flexors peak torque (PT) and average strength (AS) significantly declined in the bout arm post exercise induced muscle damage. Administration of PRP had no effect on the muscle strength parameters, however, flexor PT values were higher in PRP administered arm compared to the control arm, but this was only achieved on the second day of post-exercise induced muscle damage.
Źródło:
Central European Journal of Sport Sciences and Medicine; 2014, 8, 4; 19-26
2300-9705
2353-2807
Pojawia się w:
Central European Journal of Sport Sciences and Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geochemical relationships in CO2-rich therapeutic waters of the Sudetes (Poland)
Autorzy:
Dobrzyński, Dariusz
Stępień, Marcin
Szostakiewicz-Hołownia, Marzena
Humnicki, Włodzimierz
Powiązania:
https://bibliotekanauki.pl/articles/24024704.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
groundwater geochemistry
trace elements
therapeutic water
CO2-rich water
Sudetes
hydrogeochemia
pierwiastki śladowe
wody lecznicze
szczawy
Sudety
Opis:
Geochemical studies of CO2-rich therapeutic waters in the Sudetes have provided new data on a wide range of trace elements, going beyond standard chemical analyses of such waters. A consistent set of physicochemical data obtained using the same analytical methods was subjected to statistical analyses, including hierarchical clustering, factor analysis and nonparametric tests (Kruskal-Wallis, Tau Kendall), to reveal geochemical relationships between physicochemical and chemical parameters in the waters, and their relationships with the aquifer lithology. Distinct differences in the composition of waters found in crystalline rocks (mainly gneisses and mica schists) and sedimentary rocks were identified. The wide range of elements can be associated with the hydrolysis of silicate minerals, including alkali and alkali earth metals (Li, Na, K, Rb, Cs, Be) and (mostly) transition elements (Fe, Mn, Zn, Co, W, Mg). Carbonate equilibria are the next important factor as it determines the aggressiveness of the water towards the minerals of aquifer rocks and affects the concentrations of numerous solutes. The probable common origin of chlorides, bromides and sulphates together with Li, Na, Sr may be related to the relict saline component of deep circulating waters, a hypothesis that requires further investigations.
Źródło:
Acta Geologica Polonica; 2022, 72, 4; 479--493
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Does this poem work (for you)? Irony, possibility and work in Adrienne Rich’s and Franco Berardi’s critical thought
Autorzy:
Koronkiewicz, Marta
Powiązania:
https://bibliotekanauki.pl/articles/1009765.pdf
Data publikacji:
2014-01-01
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
poetry
Rich
Berardi
social function of poetry
Polish contemporary poetry
poezja
społeczna funkcja poezji
polska poezja najnowsza
Opis:
Puntem wyjścia szkicu jest proponowane przez Adrienne Rich rozumienie społecznej funkcji poezji. Zdaniem Rich najważniejszym zadaniem poezji jest dzisiaj nieustanne przypominanie o rzeczach, które, których moglibyśmy pragnąć (jako jednostki i jako społeczeństwo), o pragnieniach zapomnianych lub pogrzebanych. W swoim manifeście „Poetry and Commitment”, Rich pyta o sposoby, w jaki poezja wchodzi w interakcję z życiem, jak, przy pomocy wszystkich swoich formalnych i estetycznych mechanizmów, umożliwia nam wyobrażanie sobie innej codzienności. Autorka szkicu rekonstruuje punkt widzenia Rich i porównuje go z koncepcjami Franco „Bifo” Berardiego, z książki „Uprising. On poetry and finance”. Powołując się na przykłady z polskiej poezji ostatniej dekady, szkic stara się udzielić odpowiedzi na pytanie o pracę, która odbywa się w wierszu.
The starting point of the paper is the social function of poetry, as understood by Adrienne Rich in her later essays. According to Rich, the single most important function or „capacity” delivered by poetry today is to continuously remind us of the things that we might want (as individuals as well as a society), our forgotten or buried desires. In her manifesto „Poetry and Commitment” Rich asks about the ways in which poetry intervenes in one’s life – how, with all its formal aspects and aesthetic mechanisms it enables us to imagine an everyday life different from the one we already have. In the paper the authoress compares Rich’s point of view to that of Franco „Bifo” Berardi in his last book „Uprising. Poetry and Finance”. Using Polish poetry of the last ten years or so as an example, the paper reflects on the actual work of (and the inside of) the poem.
Źródło:
Praktyka Teoretyczna; 2014, 11, 1; 71-84
2081-8130
Pojawia się w:
Praktyka Teoretyczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kwestia bogatych pochówków kobiecych w antycznej Tracji
On rich women burials in ancient Thracia
Autorzy:
Hatłas, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/1024134.pdf
Data publikacji:
2018-11-01
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Opis:
The article discusses the most important opinions of Bulgarian scholars on rich women burials in ancient Thracia. Analysis of subsequent sites, along with the newest archaeological discoveries (in particular, a burial from mound 47 at Smjadovo), makes possible to conclude that such burials really existed on the discussed territory, or at least on its part.
Źródło:
Folia Praehistorica Posnaniensia; 2004, 12; 299-310
0239-8524
2450-5846
Pojawia się w:
Folia Praehistorica Posnaniensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Why "rich farmers" demand financial support?
Dlaczego "bogaci rolnicy" domagają się wsparcia finansowego?
Autorzy:
Poczta-Wajda, A.
Powiązania:
https://bibliotekanauki.pl/articles/870844.pdf
Data publikacji:
2015
Wydawca:
The Polish Association of Agricultural and Agribusiness Economists
Opis:
People tend to compare themselves with other people from their surroundings. This leads to a situation, in which even a rich person in absolute terms, can feel poor in relative terms, if people from surroundings are richer. We call it relative deprivation. Farmers in developed economies claim to be poor, because they compare themselves not with farmers in poor economies, but rather with other members of their own society who work outside the agriculture and whose incomes are usually higher. Feeling relatively deprived, farmers in developed economies demand stronger financial support and act intensively to convince policymakers to support them. Hence, the main aim of this paper is to analyze the relation between the relative deprivation of an average farmer in countries with different development level and the level of support for farmers. Results of this study prove that the level of relative deprivation of famers is strongly and positively correlated with the level of support for farmers. Hence the idea of relative deprivation might provide additional political explanation of different level of support for farmers in countries with different development level.
Celem badań było określenie relacji pomiędzy poziomem relatywnej deprywacji rolników w krajach o różnym poziomie rozwoju a poziomem wsparcia finansowego dla rolników. Ludzie porównują się zazwyczaj z innymi osobami ze swojego otoczenia, co może prowadzić do sytuacji, w której osoba bogata w ujęciu absolutnym będzie czuła się biedna w ujęciu relatywnym, jeżeli osoby z jej otoczenia będą bogatsze. Zjawisko to nazywa się relatywną deprywacją. Rolnicy krajów rozwiniętych uważają, że są biedni, ponieważ nie porównują się z rolnikami z biedniejszych gospodarek, tylko z innymi członkami własnego społeczeństwa, którzy pracują poza rolnictwem i których dochody są zazwyczaj wyższe. W takiej sytuacji rolnicy z krajów rozwiniętych domagają się większej pomocy finansowej i aktywnie działają, aby przekonać polityków do wspierania ich.
Źródło:
Roczniki Naukowe Stowarzyszenia Ekonomistów Rolnictwa i Agrobiznesu; 2015, 17, 4
1508-3535
2450-7296
Pojawia się w:
Roczniki Naukowe Stowarzyszenia Ekonomistów Rolnictwa i Agrobiznesu
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Occurrence of Liparis loeselii (L.) Rich. in the Malopolska Upland (South Poland)
Autorzy:
Piwowarski, B.
Przemyski, A.
Powiązania:
https://bibliotekanauki.pl/articles/878335.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Źródło:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana; 2012, 16
1896-1908
Pojawia się w:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterization and expression analysis of the yellow lupin (Lupinus luteus L.) gene coding for nodule specific proline-rich protein.
Autorzy:
Karłowski, Wojciech
Stróżycki, Paweł
Legocki, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/1044363.pdf
Data publikacji:
2000
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
symbiotic nitrogen fixation
plant gene expression
ENOD2
proline-rich proteins
early nodulins
mRNA degradation
Opis:
The LlPRP2 gene coding for a proline-rich protein shows a high level of similarity to, as well as significant differences from the family of ENOD2 nodule-specific genes. Several sequence motifs with putative regulatory function were identified in the 5' and 3' noncoding regions of the LlPRP2 gene. Northern blot analysis revealed that the expression of the LlPRP2 gene begins 9 days after inoculation of yellow lupin roots with Bradyrhizobium sp. (Lupinus); the expression is restricted to symbiotic nodules and is not detected in other tissues or organs. Detailed hybridization analysis showed that, when expression is activated, the LlPRP2 transcript is modified so as to produce at least three bands and a continuous distribution of decay intermediates. The modification of the LlPRP2 transcript probably involves degradation from the 5'- and/or 3'-ends of the RNA molecules. Southern blot analysis indicates that only one gene is present in the yellow lupin genome. The presence of genes homologous to the LlPRP2 gene was confirmed for three cultivars of yellow lupin and for Lupinus angustifolius. However, LlPRP2 homologues were not detected in Lupinus albus cv. Bac, indicating that this plant may lack the ENOD2 sequence.
Źródło:
Acta Biochimica Polonica; 2000, 47, 2; 371-383
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monotreme nature of the Australian Early Cretaceous mammal Teinolophos
Autorzy:
Rich, T H
Vickers-Rich, P.
Trusler, P.
Flannery, T.F.
Cifelli, R.
Constantine, A.
Kool, L.
Van Klaveren, N.
Powiązania:
https://bibliotekanauki.pl/articles/22297.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Early Cretaceous
holotype
Australia
mammal
Teinolophos trusleri
Cretaceous
Teinolophos
Steropodontidae
paleontology
Opis:
The morphology of the single preserved molar of the holotype of the Australian Early Cretaceous (Aptian) mammal Teinolophos trusleri shows that it is a monotreme and probably a steropodontid, rather than a 'eupantothere' as originally proposed. The structure of the rear of the jaw of T. trusleri supports the molecular evidence that previously formed the sole basis for recognising the Steropodontidae as a distinct family.
Źródło:
Acta Palaeontologica Polonica; 2001, 46, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ignition and Combustion Performance of the Primary Condensed-phase Combustion Products from Boron-based Fuel-rich Propellants
Autorzy:
Liu, L.-L.
He, G.-G.
Wang, Y.-H.
Hu, S.-G.
Powiązania:
https://bibliotekanauki.pl/articles/358859.pdf
Data publikacji:
2017
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
boron-based fuel-rich propellant
primary combustion products
ignition
combustion performance
Opis:
The primary condensed-phase combustion products of a boron-based fuel-rich propellant were ignited using a high-power CO2 laser in a pressurized and windowed combustion chamber under variable pressure. The ignition and combustion performances were characterized using an ultraviolet-visible spectrometer and a high-speed camera. The experimental results showed that the combustion of the condensed-phase combustion products originate from the combustion of carbon, and boron may not take any part in the combustion process because of the formation of a thick boron oxide coating and agglomeration after the primary combustion process. Both particle size and the ingredients play an important role in the combustion reaction of the condensed-phase products. It was observed that a lower particle size and a higher boron carbide content are beneficial for the combustion reaction of the products; higher primary and secondary combustion pressures clearly improved the secondary combustion efficiency of the propellant in the combustion reaction.
Źródło:
Central European Journal of Energetic Materials; 2017, 14, 2; 448-460
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wyniki doświadczeń nad możliwością uszkodzenia drewna cedrzyńca (Calocedrus decurrens Torr.) i cyprysika błotnego (Taxodium distichcum Rich.) przez spuszczela (Hylotrupes bajulus L.)
Rezultaty opytov vozmozhnosti povrezhdenija drevesiny rechnogo kedra (Calocedrus decurrens Torr.) i bolotnogo kiparisa (Taxodium distichum Rich.) usachem domovym (Hylotrupes bajulus L.)
Results of experiments on a possible damage of Calocedrus decurrens Torr. and Taxodium distichum Rich wood by Hylotrupes bajulus L.
Autorzy:
Dominik, J.
Powiązania:
https://bibliotekanauki.pl/articles/820079.pdf
Data publikacji:
1977
Wydawca:
Polskie Towarzystwo Leśne
Źródło:
Sylwan; 1977, 121, 10
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The origin and chemical composition of Carpathians chloride CO2-rich waters in the light of stable chlorine isotope studies (37Cl and 35Cl)
Autorzy:
Dembska-Sięka, Paulina
Pelc, Andrzej
Rajchel, Lucyna
Powiązania:
https://bibliotekanauki.pl/articles/2058569.pdf
Data publikacji:
2020
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Carpathians
chloride CO2-rich water
chlorine isotopes
chemical composition
origin
Opis:
Investigations into chloride CO2-rich water occurring in the Polish and Slovakian Carpathians were carried out to gain a better understanding of the Cl- sources. The primary Cl- concentration in sea water, processes accompanying diagenesis, together with water-rock-gas interactions, have undoubtedly influenced the present content of chlorides. The Cl-- concentrations in the waters analysed vary from 35.5 to 4148.3 mg/l, lower than in sea water, with a mean ~19000 mg/l. The measured δ37Cl values range from -1.15 to -0.26‰, below the typical sea water value of 0‰. It might be concluded that the chemical and isotopic composition of these waters are the result of reactions during diagenesis (e.g., ion exchange or diffusion through low-permeability clay layers) as well as meteoric water influx.
Źródło:
Geological Quarterly; 2020, 64, 1; 197--204
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geology and genesis of vein-type corundum deposits in the Hafafit-Nugrus area, South Eastern Desert, Egypt
Autorzy:
Mahmoud, Soliman Abu Elatta A.
Ali, Hani H.
Powiązania:
https://bibliotekanauki.pl/articles/1841624.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
grossular
Cr-rich spinel
Nb-rich rutile
ultramafic rocks
secondary uranium minerals
spinel
rutyl
minerały
skały ultrazasadowe
uran
Opis:
Unusual deposits formed by corundum are described from two separate pegmatitic veins in the Hafafit-Nugrus area of the South Eastern Desert of Egypt. Other related minerals are described too. The vein-type of corundum at Locality 1 (Vein 1) crosscuts through exposed rocks of an ophiolitic mélange, whereas at Locality 2 (Vein 2), it crosscuts through exposed serpentinised ultramafic rocks. The main minerals in Vein 1 are plagioclase, corundum, grossular, phlogopite, muscovite and clinochlore, while almandine, xenotime-(Y), allanite-(Ce), zircon, Cr-rich spinel, apatite, titanite, fergusonite-(Y), meta-ankoleite, U-rich thorite (uranothorite), carbonate and illite are the accessories. In Vein 2, the main minerals are plagioclase, corundum, phlogopite and chlorite, while clinochlore, euxenite-(Y), Nb-rich rutile, almandine, xenotime-(Y), allanite-(Ce), zircon, spinel, apatite, titanite, kasolite, dickite, illite, carbonate, antigorite and talc are accessories. The two types of corundum veins differ in their concentrations of Th, U, Zr, Nb, Ta, REE, Y and Li in wholerock compositions. Field observations, mineralogy and chemical analyses of samples from the two veins of corundum deposits, as well as concentrations of chromophore elements in corundum crystals, suggest metasomatic origins. The present study suggests that the two types of corundum veins formed at different ages from different residual magmas that underwent in-situ hybridisation with the host rocks.
Źródło:
Geologos; 2020, 26, 3; 181-197
1426-8981
2080-6574
Pojawia się w:
Geologos
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determining the optimal solution treatment temperature of aluminum cast alloys by using quantitative analysis
Autorzy:
Kucharikova, L.
Tillova, E.
Powiązania:
https://bibliotekanauki.pl/articles/109049.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
aluminum cast alloys
quantitative analysis
microstructural features
eutectic Si
Fe-rich phases
Cu-rich phases
stopy aluminium
odlewnicze stopy aluminium
cechy mikrostrukturalne
analiza ilościowa
Opis:
Heat treatment of aluminum casts is necessary for achieving the desired properties of casts. Heat treatment caused changes in microstructure and substructure of materials and therefore it is necessary to control which changes are sufficient and which are insufficient. Morphology (shape, size and distribution) of microstructural features influence the properties of cast rapidly. Contribution describes influence of the heat treatment marking T4 - solution treatment in dependence on temperature (505, 515 a 525 °C) and holding time (2, 4, 8, 16 a 32 hour) on structure (α–phase, eutectic silicon, intermetallic phases) and mechanical properties (ultimate tensile strength - UTS and Brinell hardness - HBW) of A226 cast alloy. This cast alloy is made out of secondary aluminum. Secondary aluminum alloys are made of aluminum scrap. About 70 % of such material are used in the manufacture of casts. Therefore the strictly microstructure control of experimental material before and after heat treatment is necessary for declaration of cast properties. Nowadays manufacturers use the methods of quantitative analysis for quick control of microstructural features. This work present some of them.
Źródło:
Archiwum Wiedzy Inżynierskiej; 2017, 2, 2; 27-30
2544-2449
Pojawia się w:
Archiwum Wiedzy Inżynierskiej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Materials Properties of Iron-rich Intermetallic Phase in a Multicomponent Aluminium-Silicon Alloy
Autorzy:
Tupaj, M.
Orłowicz, A. W.
Mróz, M.
Trytek, A.
Powiązania:
https://bibliotekanauki.pl/articles/381828.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
alloys Al-Si
intermetallics phase
Fe-rich
primary crystals
silicon
stopy Al-Si
faza międzymetaliczna
wzbogacanie żelazem
kryształy pierwotne
krzem
Opis:
Available technical literature includes a number of reports on harmful effects connected with elevated content of iron in aluminium-silicon alloys but in case of pressure castings, alloys containing up to 2% Fe can be used. This follows from lesser susceptibility of such alloys to sticking to surfaces of metal moulds. One effect of iron presence in aluminium-silicon alloys is precipitation of iron-rich intermetallic phases. In the study reported in this paper it has been found that in a multicomponent aluminium-silicon alloy, the indentation hardness (HIT) and the elastic indentation modulus (EIT) of intermetallic phases occurring in the form of polyhedrons and/or their conglomerates, rich in aluminium, iron, silicon, manganese, and chromium, containing also copper, nickel, and vanadium, are higher than those measured for silicon crystals. This feature can be used to intentional modelling microstructure of mechanical parts which are expected to show high resistance to abrasive wear.
Źródło:
Archives of Foundry Engineering; 2015, 15, 1 spec.; 111-114
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sandy Soil Reclamation Using Biochar and Clay-Rich Soil
Autorzy:
Thi, Diep Pham
Hang, Nga Nguyen Thi
Viet, On Tran
Van, Loc Nguyen
Viet, Anh Nguyen
Lan, Phuong Dinh Thi
Van, Nguyen Vu
Powiązania:
https://bibliotekanauki.pl/articles/1838287.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
sandy soil
biochar
clay-rich soil
physical properties
chemical properties
Opis:
The investigations on the effects of biochar application in improving the physio-chemical properties of soil have been carried out in many studies; however, there are very few studies on the combined use of both biochar and clay-rich soil for poor nutrient soil reclamation. Therefore, this study demonstrates improved water retention and nutrient retention of sandy soil by using biochar and biochar combined with clay-rich soil. The experiments were conducted on a small scale (greenhouse) with nine different application rates of biochar and clay-rich soil were mixed and then cultivated peanut, along with the drip irrigation technique using field moisture limit (about 70-80%) was applied under the condition of ensuring a sufficient supply of NPK for plant’s growth. The results showed that at the rates from 10.0-15.0% (w/w) clay-rich soil mixed with from 0.5-1.5% (w/w) of biochar applied to the tested sandy soil resulted in the positive effects on soil water holding, bulk density, permeability, pH, CEC, OM, total N, total P and peanut yield. The physical and chemical characteristics of the tested sandy soil have been improved by time and the application rate of 10.0% clay-rich soil and 0.5% biochar had the highest efficiency of pod fresh weight and pod dry weight during three studied seasons.
Źródło:
Journal of Ecological Engineering; 2021, 22, 6; 26-35
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sandy Soil Reclamation Using Biochar and Clay-Rich Soil
Autorzy:
Thi, Diep Pham
Hang, Nga Nguyen Thi
Viet, On Tran
Van, Loc Nguyen
Viet, Anh Nguyen
Lan, Phuong Dinh Thi
Van, Nguyen Vu
Powiązania:
https://bibliotekanauki.pl/articles/1838394.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
sandy soil
biochar
clay-rich soil
physical properties
chemical properties
Opis:
The investigations on the effects of biochar application in improving the physio-chemical properties of soil have been carried out in many studies; however, there are very few studies on the combined use of both biochar and clay-rich soil for poor nutrient soil reclamation. Therefore, this study demonstrates improved water retention and nutrient retention of sandy soil by using biochar and biochar combined with clay-rich soil. The experiments were conducted on a small scale (greenhouse) with nine different application rates of biochar and clay-rich soil were mixed and then cultivated peanut, along with the drip irrigation technique using field moisture limit (about 70-80%) was applied under the condition of ensuring a sufficient supply of NPK for plant’s growth. The results showed that at the rates from 10.0-15.0% (w/w) clay-rich soil mixed with from 0.5-1.5% (w/w) of biochar applied to the tested sandy soil resulted in the positive effects on soil water holding, bulk density, permeability, pH, CEC, OM, total N, total P and peanut yield. The physical and chemical characteristics of the tested sandy soil have been improved by time and the application rate of 10.0% clay-rich soil and 0.5% biochar had the highest efficiency of pod fresh weight and pod dry weight during three studied seasons.
Źródło:
Journal of Ecological Engineering; 2021, 22, 6; 26-35
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Second specimen of Corriebaatar marywaltersae from the Lower Cretaceous of Australia confirms its multituberculate affinities
Autorzy:
Rich, Thomas H.
Krause, David W.
Trusler, Peter
White, Matt A.
Kool, Lesley
Evans, Alistair R.
Morton, Steven
Vickers-Rich, Patricia
Powiązania:
https://bibliotekanauki.pl/articles/2216260.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Mammalia
Multituberculata
Cimolodonta
Cretaceous
Gondwana
Australia
Opis:
A second specimen of the Australian cimolodontan multituberculate Corriebaatar marywaltersae from the same locality (Flat Rocks) as the holotype and previously only known specimen, reveals far more anatomical information about the species. The new specimen, composed of most of a dentary containing a complete p4 and alveoli for the lower incisor and the lower first and second molars, exhibits a suite of features consistent with allocation of Corriebaatar to Cimolodonta and further confirms the presence of multituberculates on Gondwana during the Mesozoic. The revised (older) age of the Flat Rocks locality to latest Barremian (mid-Early Cretaceous) establishes C. marywaltersae as the oldest currently known cimolodontan. This has profound biogeographic implications for the distribution of multituberculates on Gondwana as well as globally, particularly in light of the fact that Corriebaatar appears to be a relatively derived member of Cimolodonta.
Źródło:
Acta Palaeontologica Polonica; 2022, 67, 1; 115-134
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The “biological chamber” method – use of autologous platelet-rich plasma (PRP) in the treatment of poorly healing lower-leg ulcers of venous origin
Autorzy:
Waniczek, Dariusz
Mikusek, Wojciech
Kamiński, Tomasz
Wesecki, Mariusz
Lorenc, Zbigniew
Cieślik-Bielecka, Agata
Powiązania:
https://bibliotekanauki.pl/articles/1395656.pdf
Data publikacji:
2015-06-01
Wydawca:
Index Copernicus International
Tematy:
chronic lower-leg venous ulcer
autologous platelet-rich plasma
Opis:
Wound healing is a complex pathophysiological process, in which platelets play a crucial role. Platelet alpha-granules release growth factors to the wound bed; the factors are necessary in the healing process. In chronic wounds, such as poorly healing lower-leg ulcers of venous origin, there is decreased activity of multiple growth factors, so the concept of exogenous delivery of such factors seems a logical strategy. Platelet-rich plasma therapy in patients with lower-leg ulcers of venous origin combined with conventional treatment methods (previously ineffective in these patients) seems, based on our observation, an important adjunct leading to recovery. The aim of the study was to present an original method of autologous platelet-rich plasma application through the creation of a sort of “biological chamber” containing a concentrate of growth factors. Material and methods. The described therapy was implemented in 10 patients, who had been ineffectively treated for more than one year in the outpatient setting. Patients with exacerbation of inflammatory process, signs of wound infection and ankle brachial pressure index < 0.8 were excluded from the study. After the application of platelet-rich plasma, further treatment was continued with the use of moist therapy and compression therapy according to a uniform regimen. Results. Complete healing was achieved within 4-10 weeks from the beginning of the product administration in all patients. Conclusion. The presented method seems technically simple, effective and relatively inexpensive
Źródło:
Polish Journal of Surgery; 2015, 87, 6; 283-289
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Forest snail faunas in the Kaszuby Uplands (Pomerania): a rich northern refuge
Autorzy:
Cameron, R.A.D.
Pokryszko, B.M.
Powiązania:
https://bibliotekanauki.pl/articles/84082.pdf
Data publikacji:
2006
Wydawca:
Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
Opis:
Forest snail faunas were sampled in three river gorges in the Kaszuby Uplands, Pomorze. 43 species were found, including 10 species of Clausiliidae. Taken with earlier records, these gorges hold 48 species. These faunas are markedly richer than most of those recorded in north and west Poland, especially for clausiliids, where up to eight species could be found in the same sample site. The fauna overall is very similar to that of the ancient Bia³owie¿a Forest much further east. The results suggest that many lowland forests in Poland have impoverished faunas, probably due to human activities, but there are a few refugia in which nearly all of the original forest fauna has survived. These give a better picture of natural patterns of distribution and change across the North European Plain.
Źródło:
Folia Malacologica; 2006, 14, 2
1506-7629
Pojawia się w:
Folia Malacologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Combustion Characteristics and Mechanism of Boron-based, Fuel-rich Propellants with Agglomerated Boron Powder
Autorzy:
Xu, H. -X.
Pang, W.-Q.
Guo, H.-W.
Zhao, F.-Q.
Wang, Y.
Sun, Z.-H.
Powiązania:
https://bibliotekanauki.pl/articles/358733.pdf
Data publikacji:
2014
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
analytical chemistry
boron-based fuel-rich solid propellants
agglomerated boron powder
combustion performance
combustion mechanism
Opis:
In order to extend the burning rate of boron-based, fuel-rich solid propellants with agglomerated boron powder, the effects of the boron content, the AP content, and of the magnesium powder content, on the burning rate and pressure exponent have been studied systematically. It has been shown that when the AP content is constant, the burning rate of the propellants increases with an increase in the agglomerated boron content. Furthermore, the burning rate and pressure exponent increase with increasing the contents of AP and magnesium powder. By means of single colour frame amplification photography and combustion wave tests, the combustion mechanism of these propellants has been investigated. It has been shown that the flame of the propellants becomes brighter by increasing the AP content, the dT/dxcp and dT/dxgp of the propellant FR-5 being around 6815 and 5789 °C/mm respectively, higher than those of FR-4, resulting in greater burning rates. The Ts of these propellants is above 683 °C, which is higher than the decomposition peak temperatures of agglomerated boron powder and of propellants (about 649 °C), which indicates that agglomerated boron powder is partially oxidized on the combustion surface, and the heat released from it may be beneficial to the combustion of the propellants.
Źródło:
Central European Journal of Energetic Materials; 2014, 11, 4; 575-587
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Systemic inflammatory response to the Radial Pressure Wave Therapy (RPWT) in collagenase-induced Achilles tendinopathy treated with Adipose Derived Stem Cells or Platelet Rich Plasma
Autorzy:
Facon-Poroszewska, M.
Kiełbowicz, Z.
Prządka, P.
Powiązania:
https://bibliotekanauki.pl/articles/2087424.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Radial Pressure Wave Therapy
collagenase
Achilles
tendinopathy
Platelet Rich Plasma
Adipose Derived Stem Cells
Źródło:
Polish Journal of Veterinary Sciences; 2019, 4; 735-742
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Diagnostyka izolacji uzwojeń wysokonapięciowych maszyn elektrycznych wykonanych w technologii Resin-Rich na etapie produkcji
Insulation Diagnostics of the High Voltage Electric Machines Made in Resin-Rich Technology During Manufacturing
Autorzy:
Szymaniec, S.
Kandora, W.
Powiązania:
https://bibliotekanauki.pl/articles/1368412.pdf
Data publikacji:
2013
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Napędów i Maszyn Elektrycznych Komel
Tematy:
diagnostyka izolacji uzwojeń wysokonapięciowych maszyn elektrycznych
insulation diagnostics of high voltage electric machines
Opis:
Paper contain laboratory study of partial discharge (PD) measurement on turbogenerator bars with a voids. Partial discharge patterns and PD interpretation were showed.
W artykule przedstawiono badania laboratoryjne prętów stojana turbogeneratora, przedstawiono wyniki pomiarów, jak również ich interpretację.
Źródło:
Maszyny Elektryczne: zeszyty problemowe; 2013, 2, 99; 37-42
0239-3646
2084-5618
Pojawia się w:
Maszyny Elektryczne: zeszyty problemowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New data on celestine-rich salts in the Wieliczka salt deposits
Autorzy:
Nowińska, J.
Powiązania:
https://bibliotekanauki.pl/articles/184740.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
rock salt
Badenian
Wieliczka
strontium
celestine
geochemistry
Opis:
Pale brownish celestine-rich salt rocks were found near the Franciuszek Müller gallery, in the chambers of the 3rd level in the Wieliczka Salt Mine. The complex of rock salts subjected to exploration occurred within a large seam approximately 15 m thick. Detailed research revealed that the salt has the form of a block incorporated within the gray salts body and being similar to other blocks of green salts, well known in the upper part of the deposit. A characteristic petrographical feature of the pale brown rock salt owed to the presence of celestine (SrSO 4 ). That strontium mineral was re-examined, using X-ray powder data, and scanning microscope observations, with EDS analysis. The investigated rock salts exhibited a mineral association of halite (main component), anhydrite, celestine, calcite, gypsum, clay materials, iron compounds and a small amount of bitumen. Interrigenous sediments and the insoluble part of salt occurred higher content of strontium that in halite. Celestine crystals were observed in two forms: elongated platy crystals, forming fan-shaped aggregates and granular aggregates, strongly associated with anhydrite. On carbonate and sulphate strontium usually appearing as needle shaped aggregates of celestine. No barium minerals were observed. The development and paragenesis of celestine suggested a post-sedimentary origin of these rocks that ought to be connected with diagenetic processes. An important observation that confirmed that thesis was the transformation of fine crystalline anhydrite into platy crystals, recrystallization and primary accumulation of strontium, as a result of evaporation processes.
Źródło:
Geology, Geophysics and Environment; 2017, 43, 1; 57-68
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Toward rich geometric map for SLAM : online detection of planes in 2D LIDAR
Autorzy:
Berger, C.
Powiązania:
https://bibliotekanauki.pl/articles/385041.pdf
Data publikacji:
2013
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
laser scanner
SLAM
lidar
Opis:
Rich geometric models of the environment are needed for robots to carry out their missions. However a robot operating in a large environment would require a compact representation. In this article, we present a method that relies on the idea that a plane appears as a line segment in a 2D scan, and that by tracking those lines frame after frame, it is possible to estimate the parameters of that plane. The method is divided in three steps: fitting line segments on the points of the 2D scan, tracking those line segments in consecutive scan and estimating the parameters with a graph based SLAM (Simultaneous Localisation And Mapping) algorithm.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2013, 7, 1; 35-41
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cation exchange capacity of clay rich soils in relation to mineralogical composition and organic matter content
Autorzy:
Dabkowska-Naskret, H
Jaworska, H.
Kobierski, M.
Powiązania:
https://bibliotekanauki.pl/articles/1450278.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
organic matter
capacity
clay rich soil
mineralogical composition
aluminium oxide
soil component
clay fraction
manganese oxide
soil
cation exchange
whole soil
free iron
terrestrial ecosystem
Opis:
Contribution of clay mineral phase (<2 um) and organic matter to the cation exchange capacity (CEC) of two clayey soils (gleyic black earths from Gniew) was investigated. The XRD analysis showed dominance of illite and mixed laver illite/smectite as well as the presence of smectite, chlorite and trace of kaolinite in the clay fraction of studied soils. CEC of the soils ranged between 22.08-32.64 cmol(+)/kg. After removal of organic matter with 30% H2O2, CEC the above values decreased significantly. However, the CEC of organic and inorganic components is not an additive. This may be explained by the formation of organo-mineral complexes, which might lower the CEC of the soil as a whole.
Źródło:
Acta Agrophysica; 2001, 50; 113-118
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Uranium-rich monazite-(Ce) from the Krivá type granitic boulders in conglomerates of the Pieniny Klippen Belt, Western Carpathians, Slovakia : composition, age determination and possible source areas
Autorzy:
Uher, P.
Plašienka, D.
Ondrejka, M.
Hraško, L.
Konečný, P.
Powiązania:
https://bibliotekanauki.pl/articles/2059734.pdf
Data publikacji:
2013
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
uranium-rich monazite
granite
conglomerate
monazite dating
Pieniny Klippen Belt
Western Carpa
Opis:
Monazite-(Ce) is a widespread accessory mineral in granitic cobbles of the Krivá type (Zástranie and Krivá localities) in polymict conglomerates of Cretaceous flysch sequences, the Pieniny Klippen Belt, Western Carpathians, NW Slovakia. The granites show leucocratic muscovite-biotite granodiorite composition and peraluminous calc-alkaline, S-type character. The monazite contains unusually high U, commonly 1 to 3, and in some places up to 6.6 wt.% UO2, together with 5 to 7.7 wt.% ThO2. A cheralite-type substitution [Ca(U,Th)REE–2 is the dominant mechanism of U4+ + Th4+ incorporation into the monazite structure in the Zástranie sample, whereas both cheralite- and huttonite-type substitution [(Th,U)SiREE–1P–1] are evident in the Krivá granitic cobble. Uranium alone prefers the CaU4+(REE)–2 mechanism, whereas Th favours the huttonite substitution. The chemical U-Th-Pb dating of monazite from both granitic cobbles show an Early Carboniferous age (346 ± 2 Ma), which is consistent with the main meso-Variscan, orogen-related plutonic activity in the Central Carpathian area (Tatric and Veporic superunits). Analogous U-rich monazites were detected in some Variscan S-type leucogranites of the Rimavica massif (South Veporic Unit) and the Bojná and Bratislava massifs (northern part of the Tatric Unit). On the basis of structural and palaeogeographic data, the North Tatric Zone is the most plausible source of the monazite-bearing granitic boulders in the Pieniny Klippen Belt. However, the source granitic body was most likely hidden by ensuing tectonic shortening along the northern Tatric edge after deposition of the Coniacian–Santonian Upohlav type conglomerates.
Źródło:
Geological Quarterly; 2013, 57, 2; 343--352
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Między bogactwem a śmiercią. Kanoniczna i apokryficzna przypowieść o nierozumnym bogaczu (Łk 12,16-21; EwTm 63)
Between wealth and death. A canonical and apocryphal Parable of the Rich Fool (Lk 12,16-21; EvThom 63)
Autorzy:
Jaromin, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/19944843.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Opolski. Redakcja Wydawnictw Wydziału Teologicznego
Tematy:
a canonical Parable of the Rich Fool
an apocryphal Parable of the Rich Fool
wealth
death
durability of spiritual goods
instability of worldly goods
przypowieść kanoniczna i apokryficzna o nierozumnym bogaczu
bogactwo
trwałość dóbr duchowych
nietrwałość dóbr materialnych
śmierć
Opis:
The aim of this study is to present the dependence between wealth and death in the canonical and apocryphal Parable of the Rich Fool (Lk 12,16-21; EvThom 63). Both versions of the parable differ in some significant details. However, it can be assumed that the basic idea remains the same: putting too much trust in tangible goods, the temptation to recognize self-sufficiency and not reckoning with God in this life is foolishness (also in terms of the Old Testament) and condemns a man to a spiritual death. A man absorbed in all what is temporal does not also allow any thoughts about death to himself. Death, which will surprise him, will shut him the way to correct his life, to do at least one smallest good deed. Both discussed texts also underlines the instability of worldly goods and durability of spiritual goods. A warning may be read out of them to reckon with God’s will in our worldly plans as it is the base of life.
Źródło:
Scriptura Sacra; 2013, 17; 59-69
1428-7218
Pojawia się w:
Scriptura Sacra
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Detection and characteristics of sulfamethoxazole-resistant bacteria in constructed wetlands treating sulfamethoxazole-rich wastewater
Autorzy:
Ziembinska-Buczynska, A.
Wyszynska, K.
Miksch, K.
Powiązania:
https://bibliotekanauki.pl/articles/80591.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2017, 98, 1
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The student government as an educational method. Rich past and poor present
Autorzy:
Kiszka, Monika
Powiązania:
https://bibliotekanauki.pl/articles/2194734.pdf
Data publikacji:
2022-12-22
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
student government
educational method
children
school
upbringing
Opis:
Democratic and governmental transformations require students to develop numerous civic skills that will allow them to fully participate in adult life and enjoy all civil rights. They constitute a very important link in the school education cycle, but above all, in civic education. The student government creates one of the most important forms of social activity available to students, which allows them to develop, among others, organizational skills. It also furthers the child’s development. Active participation in the student government is an indicator of students’ self-awareness and development; it directs their activities towards cooperation and readiness to carry out tasks for the benefit of the school community. However, despite numerous educational aspects, creating optimal conditions for the functioning of the student government is the most difficult task of a modern school (Sowisło, 1996, p. 7).
Źródło:
Kultura-Społeczeństwo-Edukacja; 2022, 21, 1; 247-256
2300-0422
Pojawia się w:
Kultura-Społeczeństwo-Edukacja
Dostawca treści:
Biblioteka Nauki
Artykuł
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