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Tytuł:
Eksploatacja samochodu w warunkach zimowych
Operation of the car in winter conditions
Autorzy:
Becker, M.
Czech, P.
Gustof, P.
Turoń, K.
Jędrusik, D.
Urbańczyk, R.
Powiązania:
https://bibliotekanauki.pl/articles/310641.pdf
Data publikacji:
2017
Wydawca:
Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:
eksploatacja samochodu
problemy eksploatacji zimowej
budowa samochodów
car exploitation
winter operating problems
car construction
Opis:
Liczba samochodów w polskich rodzinach z roku na rok zwiększa się. Pośród użytkowników pojazdów znajduje się grupa, która nie posiada wystarczającej wiedzy dotyczącej właściwej eksploatacji samochodu, szczególnie w warunkach zimowych. Właśnie do tej grupy skierowany jest niniejszy artykuł. Scharakteryzowano w nim w sposób skrótowy informacje dotyczące płynów eksploatacyjnych, zużycia paliwa w okresie zimowym, użytkowania pojazdów wyposażonych w instalację gazową, ogumienia pojazdów. Podano również praktyczne porady dotyczące eksploatacji samochodu w okresie zimowym.
The number of cars in Polish families is growing year by year. Among the vehicle users there is a group that does not have sufficient knowledge about the proper operation of the vehicle, especially under the conditions of the weather. This article is addressed to this group. It is characterized by brief information on operating fluids, fuel consumption in winter, use of vehicles equipped with gas system, tires of vehicles. They are also given practical advice on operating a car in winter.
Źródło:
Autobusy : technika, eksploatacja, systemy transportowe; 2017, 18, 12; 701-708, CD
1509-5878
2450-7725
Pojawia się w:
Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Proces hamowania samochodu ciężarowego wykorzystywanego na potrzeby wojska
Braking process a heavy goods vehicle used for military purposes
Autorzy:
Czech, P.
Kula, P.
Juzek, M.
Turoń, K.
Jędrusik, D.
Powiązania:
https://bibliotekanauki.pl/articles/312401.pdf
Data publikacji:
2016
Wydawca:
Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:
proces hamowania
pojazd ciężarowy
mobilność
braking process
truck
mobility
Opis:
Pojazdy w wojsku są kluczowym elementem decydującym o jego mobilności. Od mobilności wojska zależy jego skuteczność, gdyż samo wyszkolenie żołnierzy oraz wyposażenie w ekwipunek wojskowy, nie jest wystarczające do prowadzenia skutecznie operacji wojskowych. Pojazdy, które są produkowane z przeznaczeniem do służby wojskowej muszą spełniać szereg wymagań, tak aby być niezawodnymi i funkcjonalnymi. Część wymagań regulują stosowane przepisy, a część praktyka. Aby były ze sobą skorelowane, wydający przepisy musi opierać się na aspektach wynikłych z praktyki. Celem artykułu jest analiza opóźnienia hamowania występującego w trakcie procesu hamowania samochodu ciężarowego wykorzystywanego na potrzeby wojska. Pozwoli ona określić jego zakres oraz wpływ różnych czynników.
Vehicles in the army are a key element in deciding on its mobility. The effectiveness of forces depends on the mobility because only trained soldiers and military equipment are not sufficient to effectively conduct military operations. Vehicles that are produced for the purpose of military service must meet a number of requirements, so as to be reliable and functional Part of the requirements is governed by the applicable law, and part of it is regulated by the practice. To be correlated to each other authorizing authority regulations must be based on the aspects arising from practice. The aim of the article is to analyse the braking deceleration occurring during the braking process of a heavy goods vehicle used for military purposes. It will allow specifying its scope and the impact of various factors.
Źródło:
Autobusy : technika, eksploatacja, systemy transportowe; 2016, 17, 12; 100-106
1509-5878
2450-7725
Pojawia się w:
Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterisation of Oxide Coatings Produced on Aluminum Alloys by MAO and Chemical Methods
Autorzy:
Jędrusik, M.
Dębowska, A.
Kopia, A.
Powiązania:
https://bibliotekanauki.pl/articles/354014.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
MAO
chemical method
corrosion resistance
aluminium alloys
Al2O3
Opis:
The study compared the properties of oxide coatings formed on aluminium alloys produced by: MAO (micro – arc oxidation), and the chemical method (oxidation in acid). Morphology, microstructure and of the coatings was analysed with a scanning electron microscope SEM. Corrosion resistance were tested in potentiometer – dynamic. The layers produced by MAO significantly improved corrosion resistance. Coatings produced after 3 minutes of oxidation had better corrosion resistance than the coatings after 5 minutes of oxidation. The layers produced by chemical method didn’t improve corrosion resistance of aluminium alloy.
Źródło:
Archives of Metallurgy and Materials; 2018, 63, 1; 125-128
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterization of oxide layers made on aluminum alloy 7075 by different methods
Charakterystyka warstw tlenkowych wytworzonych na stopie aluminium 7075 z zastosowaniem różnych metod
Autorzy:
Jędrusik, M.
Dębowska, A.
Kopia, A.
Petrzak, P.
Koclęga, D.
Kalemba-Rec, I.
Powiązania:
https://bibliotekanauki.pl/articles/263954.pdf
Data publikacji:
2016
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
oxide layers
aluminum alloy 7075
micro-arc oxidation
phosphate coating
chemical method
warstwy tlenkowe
stop aluminium 7075
MAO
fosforanowanie
metoda chemiczna
Opis:
Aluminum and aluminum alloys are now being widely used as materials for structural applications due to a number of valuable properties. Improvement in the functional and decorative properties of aluminum can be obtained by forming an oxide layer on its surface. The aim of the present study was to produce and compare the properties of oxide layers on the surface of aluminum alloy 7075 and compare their properties. The methods that were used during the study were as follows: phosphating, micro-arc oxidation, and a chemical method involving the formation of a passive layer. The layers were subjected to corrosion tests. SEM and EDS methods were used for characterization of the received results. Also, some tests on an optical profilometer were done. It was proven that the micro-arc oxidation method allowed us to obtain a layer with the greatest thickness and highest corrosion resistance.
Glin i jego stopy są obecnie powszechnie wykorzystywanym materiałem do zastosowań konstrukcyjnych ze względu stosunek masy do wytrzymałości. Poprawę własności funkcyjnych i dekoracyjnych aluminium uzyskać można przez wytworzenie warstwy tlenku na jego powierzchni. Celem badań było wytworzenie warstw tlenkowych na podłożu ze stopu aluminium 7075 i porównanie ich właściwości. Zastosowano trzy metody: fosforanowanie, micro-arc oxidation oraz metodę chemiczną polegającą na wytworzeniu warstwy pasywnej. Otrzymane powłoki poddano testom korozyjnym oraz charakteryzowano z zastosowaniem następujących metod: SEM, EDS. Wykonano też badania na profilometrze optycznym. Metoda micro-arc oxidation pozwala na uzyskanie warstwy o największej grubości oraz najlepszej odporności na korozję.
Źródło:
Metallurgy and Foundry Engineering; 2016, 42, 3; 187-193
1230-2325
2300-8377
Pojawia się w:
Metallurgy and Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kilka słów o wrażliwości społeczności wyspiarskich
A few words about the sensitivity of island communities
Autorzy:
Jedrusik, M.
Powiązania:
https://bibliotekanauki.pl/articles/2078215.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Opis:
For a long time, islands have served as the focal point for the studies of numerous researchers, who have been treating them as research laboratories. Their closed-off worlds created by the significant water barrier have caused their evolution to progress differently than on continental land. The isolation has produced endemism, relicts, and ecological niches, which made the islands very sensitive to the external hazards related to the introduction of foreign species. The world 's history is full of examples of such ecological catastrophes and scientific history contains numerous descriptions of them. If the entire animate nature - the flora and the fauna - was endangered, why would the islanders have it any different? Meanwhile, there is much less information concerning the fates of the isolated island communities, which experienced just as dramatic effects resulting from their contacts with foreign arrivals. This study aims to present such relatively recent episodes in the world's history. The article contains fragments and supplements of the thesis previously proposed in M. Jędrusik's book entitled "Wyspy tropikalne. W poszukiwaniu dobrobytu (Tropical Islands. In Search of Prosperity)" (2005). The presented examples from various islands in Oceania confirm the dramatic effects of contacts between the natives and the migrants as well as the diverse resistance of various island populations, which depend on the historical population density of the given regions. It should be noted that limited demographic potential caused more difficulties to the rebuilding of the population than on the continents, thus considerably limiting the development of the territories experiencing this effect. However, the main cause of this hecatomb did not arise from the bad intentions of the arrivals, but the lack of biological immunity among the islanders. The predominantly white arrivals physically destroyed the erstwhile world of the natives, which was sometimes rather erroneously perceived as a distant paradise. The physical barrier between the islands and the continents - the ocean - may be still there, but these contacts made the "immune" endemism of the islanders disappear. Could this have been one of the first symptoms of globalisation?
Źródło:
Prace i Studia Geograficzne; 2016, 61, 1; 89-101
0208-4589
Pojawia się w:
Prace i Studia Geograficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przestrzeń turystyczna i jej wykorzystanie na wyspach Morza Andamańskiego i Morza Karaibskiego. Studium porównawcze
Autorzy:
jedrusik, M.
Powiązania:
https://bibliotekanauki.pl/articles/2085255.pdf
Data publikacji:
1999
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Opis:
The Caribbean belongs to the most attractive tourist areas of the world. Tourists are particularly interested in the islands of Lesser Antilles. The islands of southern Thailand (Koh Pukhet, Koh Phi Phi, Koh Lanta) situated on the Andaman Sea are also attractive and often visited. Several differences can be observed within each one of the regions and between both of them. They are the result of geopolitical situation, natural conditions and among them natural diversity of the islands, their extend, tourist attractions, technical infrastructure, and especially the presence or absence of modern airports and deep-water sea ports. Comparing tourist space and the presence of tourist installations in both regions we can notice similarities and differences of geopolitical situation (the islands of Andaman Sea are politically uniform while lesser Antilles are politically diversified) natural conditions (in the Caribbean we observe grater diversity of the island extension then on the Andaman Sea; in the Caribbean there are is land several times bigger then the islands of Andaman Sea - Guadeloupe is three time bigger then Pukhet - the biggest island of southern Thailand, Trinidad is eight limes bigger; Caribbean islands are more elevated, and genetically more diversified, while island on Andaman Sea are situated closer to the continent), tourist attractiveness (which is similar in both regions although some big volcanic Caribbean island offer more attractions; natural environment of Thai islands is less transformed), technical infrastructure (which is better developed in the Caribbean; on the islands of Andaman Sea there is only one international airport, some island have no paved roads nor electricity; the Caribbean island are more expensive), tourist installations (on the Andaman Sea the number of is land equipped in tourist installations is much more limited, the quality of services in the Caribbean is higher, in both region we observe internal diversification of tourist installations; Pukhet is the only Thai island with installations similar to those in the Caribbean; in the Caribbean it is difficult to find an island similar to the Thai ones, with the exception of Pukhet).
Źródło:
Prace i Studia Geograficzne; 1999, 25; 159-171
0208-4589
Pojawia się w:
Prace i Studia Geograficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przyrodniczy potencjał turystyczny oraz formy jego wykorzystania na wyspach tropikalnych i subtropikalnych
Natural potential for tourism and forms of its use in tropical and subtropical Islands
Autorzy:
Jedrusik, M.
Powiązania:
https://bibliotekanauki.pl/articles/2085022.pdf
Data publikacji:
2003
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Opis:
In the recent years, islands, and especially tropical and subtropical islands, have become one of the most popular tourist destinations. The basic obstacle in their development for tourist purposes, that is the distance from the places of residence of potential clients, has been overcome by the introduction of large-capacity, long-haul airplanes. This happened in the late 1960s, and was followed by the construction of airports and airfields on the islands, which were more and more frequently visited by tourists from rich countries. Better accessibility, relatively lower travel costs and increasing opulence of the visitors was accompanied by the marketing of the islands as "tourists' heaven". Since the 1970s, the islands have become synonymous with the three "S'' (sea, sun, sand), soon to change to four "S'' (sex). The researchers and marketing companies from the rich countries and island regions (for practical reasons) have been constantly seeking new attributes that would help "sell" the tropical islands as a tourist product even better. Thus, in the early 21st century, there are ten "S", standing for: sand, scenery, sea, sun, surf, shopping, safety, sex, sincerity, sociability (Crocombe 2001). Table 1 is an attempt to summarise the natural potential for tourism of various types of tropical islands. The three spheres, that is, water, land and air, were translated into five "S". The characteristics of particular types of islands served as a basis for the evaluation of individual assets. Thus, sea implies the possibility of sea bathing, diving, fishing. Surf means the evaluation of opportunities for windsurfing; sand - for sunbathing on the beach; scenery - for hiking, cycling, horse riding activity aimed to explore the natural scenery. However, scenery also means possibilities for special interest tourism, e.g. mountain climbing and paragliding. Finally, sun means that the weather for a considerable portion of the year fulfils the three aforementioned characteristics of the "climatic ideal". The table implies that "near atolls", atolls and islands of continental origin located far off the coast have the best natural potential for tourism. While in the case of "near atolls'' and islands of continental origin, the tourist potential is relatively evenly spread among the three spheres (water, land and air), in the case of atols such potential lies primarily in "the warer and the sun". The tourist potential of old volcanic islands, offshore islands of continental origin and islands of the arc - ditch is mutually similar. In terms of natural potential for tourism, elevated atolls are the least attractive. Similarly, young volcanic islands are not very attractive; their main attraction lies in the interior. Research has proved that the greatest natural potential for tourism can be found in the islands of central and western Indian Ocean and in Polynesia. The Caribbean and the Mediterranean islands, Malaysia, Micronesia and Melanesia are definitely inferior to the above islands, and mutually similar. Surprisingly, islands of the eastern Atlantic Ocean have a small natural potential for tourism, mainly due to their genetic diversity (lack of coral reef).
Źródło:
Prace i Studia Geograficzne; 2003, 32; 141-158
0208-4589
Pojawia się w:
Prace i Studia Geograficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structural Characterization of LaCoO3 Thin Films Grown by Pulsed Laser Deposition
Autorzy:
Jędrusik, M.
Cieniek, Ł.
Kopia, A.
Turquat, C.
Leroux, C.
Powiązania:
https://bibliotekanauki.pl/articles/354709.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
PLD
thin films
perovskites
LaCoO3
Opis:
Thin films of crystallized LaCoO3 were grown on Si substrate by Pulsed Laser Deposition at different temperatures (750°C, 850°C and 1000°C). The structural characterization of the LaCoO3 thin films was done by combining several techniques: Scanning Electron Microscopy (SEM), Atomic Force Microscope (AFM), Transmission Electron Microscopy (TEM) and Grazing Incidence X-Ray Diffraction (GIXRD). The thin films crystallized in the expected rhombohedral phase whatever the deposition temperature, with an increase of crystallite size from 70 nm at 750°C to 100 nm at 1000°C, and an average thickness of the thin films of less than 200 nm. At 850°C and 1000°C, the thin films are crack-free, and with a lower number of droplets than the film deposited at 750°C. The grains of LaCoO3 film deposited at 850°C are columnar, with a triangular termination. At 1000°C, an intermediate layer of La2 Si2 O7 was observed, indicating diffusion of Si into the deposited film.
Źródło:
Archives of Metallurgy and Materials; 2020, 65, 2; 793-797
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Warunki życia w rolniczych spółdzielniach produkcyjnych na Kubie
The living conditions in the Agricultural Production Cooperatives in Cuba
Autorzy:
Jedrusik, M.
Skoczek, M.
Powiązania:
https://bibliotekanauki.pl/articles/2085430.pdf
Data publikacji:
1994
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Opis:
The paper presents the results of the bi-lateral research project entitled Cooperativization of Cuban Agriculture: The role of Agricultural Production Cooperatives in organization of rural communities and rural space, carried out by the Department of Latin America of the Faculty of Geography and Regional Studies, Warsaw University, together with Faculty of Geography of Havana University, in the years 1987-1990. The field studies, in which both authors participated, were realized in about 60 agriculture production cooperatives (Cooperativas de producctión agropecuaria, CPA) located in vańous regions of Cuba. They consisted in interviews with cooperative's authorities as well as with cooperative's members. In the paper the basic informations about the place of CPAs in the Cuban agriculture, the organization of economic activity as well as the settlements of cooperatives were presented in order to introduce the main problem. The analysis of living condictions in the CPAs has been based on the results of 225 interviews with cooperative's members. It consists of description of dwelling conditions, equipments of cooperatives members houses, the structure of family expendintures and the mode of nutrition and, last but not least, the discussion on some aspects of social, political and cultural behaviours of cooperative's families. The majority of cooperative's members evaluated their present situation as better then before the incorporation to the CPAs, mainly due to better dwelling conditions, communications facilities and more technical and social infrastructure in cooperative settlements. The CPA are offering the same privileges which obtain the workers of public sector, but the economic and social behaviours of the former have still preserved many characteristics of the peasant agriculture. But it is obvious thai CPAs created by Cuban authorities are one of the media of the process of the State control and ideological penetration of the Cuban rural areas.
Źródło:
Prace i Studia Geograficzne; 1994, 15; 143-158
0208-4589
Pojawia się w:
Prace i Studia Geograficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wyspa, wyspiarskość, wyspowość. Refleksje o niejednoznaczności tych pojęć
Island, insularity, islandness. Reflections on ambiguity of terms
Autorzy:
Jędrusik, M.
Powiązania:
https://bibliotekanauki.pl/articles/88262.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Geograficzne
Tematy:
wyspa
wyspiarskość
wyspowość
izolacja
island
insularity
islandness
isolation
Opis:
Wyspy są akceptowane jako laboratoria procesów przyrodniczych. Biolodzy umówili się, że małe, izolowane obiekty otoczone wodą to wyspy. W naukach społecznych brak jasnej definicji „wyspy” utrudnia wnioskowanie i uruchamia wyobraźnię. Czy wyspy istnieją? A może są źle zdefiniowane? A może źródłem „wyspy” nie jest wyspiarskość, czyli otoczenia przez wodę, lecz izolacja? Wówczas, jako „wyspy” można traktować także – oazy, kotliny, a może i łąki, polany śródleśne lub inne „wyspy w krajobrazie”. Takie interpretowanie pojęcia „wyspa” jest ryzykowne. Świat mógłby bowiem składać się tylko z wysp różnej wielkości. Lepiej więc rozróżnić pojęcia pochodne od słowa „wyspa”. Francuzi rozróżniają „insularité” od „insularisme”. Polacy – „wyspiarskość” i „wyspowość”. I wyspiarskość, i wyspowość to efekt istnienia bariery. Jeśli wyspa istnieje, to wyspiarskość jest jej cechą. Wyspowość to cecha „nie wyspy”, taka, która na wyspach jest powszechna i charakterystyczna, czyli wynikająca z izolacji.
Islands are accepted as laboratories of natural processes. For the biologists islands are small and isolated – surrounded by waters. For social scientists lack of a clear definition of “island” makes it difficult to draw conclusions. Do islands exist? Or they are ill-defined? Or maybe the insularity means not to be surrounded by waters, but to be isolated? If so, “island” may be oasis, valleys, even meadows, forest clearings or other “islands in the landscape”. Such a wide interpretation of the term “island” seems risky. The world would be built nearly exclusively from islands of various sizes. It may seem reasonable to draw a distinction between the terms derivative to the “island”. As do the French: “insularité” and “insularisme”, or the Polish “wyspiarskość” and “wyspowość”. Both: insularity and “islandness” are a result of existing barrier. If an island exists, the insularity would be its distinctive feature. “Islandness” is not a feature of an island itself, but is a feature that results from isolation.
Źródło:
Prace Komisji Krajobrazu Kulturowego; 2016, 33; 9-20
1896-1460
2391-5293
Pojawia się w:
Prace Komisji Krajobrazu Kulturowego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wyspy, oazy, płaskowyże życie i gospodarka na obszarach izolowanych
Islands, oasis, highlands, life and economy in isolated areas
Autorzy:
Jedrusik, M.
Powiązania:
https://bibliotekanauki.pl/articles/2085260.pdf
Data publikacji:
1999
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Opis:
Islands, oasis and highlands are apparently different geographic objects. However, it is not difficult to notice that they do have a common feature: natural barrier separating them from other parts of the world. A route from the external world to an isolated area, if it exist, crosses that barrier. Such a situation of difficult access and limited contacts with the external world has an impact on ways in which societies inhabiting isolated areas function. That impact is bigger, the more difficult and longer is the way connecting the external world and an "island", the less connections exist between them, and the nore limited number of representants of the external world come to the 'island'. The article presents an attempt of comparison of spatial isolation, life and economy of societies of the Mili atoll in Micronesia, of the Tao (Koh Tao) island situated in the Thailand Gulf, of the French highland of Causse Noir, Pakistani village Shimsal in Karakorum and Tunisian oasis of Tamerza and Zaafrane. While comparing economies of the described areas we can notice that in those situated relatively 'close' to the external world, with medium and high density of population, the economy is more diversified. Among other relationships possible to observe on such a limited sample we can mention relation between the extension of the studied area and the way of life of its inhabitants. The area of the biggest extend - Causse Noir - is inhabited by permanent population, while on the rest of them the population economic activities are related to human movements. Within the studied areas it is possible to observe the relationship between the density of population and the character of settlement. The lower the density, the more disperse is the settlement pattern. The pattern of settlement shows no relation to the type of area. Many factors contribute to the area diversity- the distance from the «external world» and the density of population, as well as culture, can probably be considered as the most important ones. It is difficult to find a relationship between the type of the area and the way of functioning of the local society. It does not seem important whether the area studied is an island, an oasis or a highland. What matters is that is an 'island', in the sense of an isolated area.
Źródło:
Prace i Studia Geograficzne; 1999, 25; 73-84
0208-4589
Pojawia się w:
Prace i Studia Geograficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zagospodarowanie turystyczne parku narodowego Krugera (RPA) – wybrane aspekty
Tourist infrastructure of Kruger National Park (RSA) – selected aspects
Autorzy:
Jedrusik, M.
Powiązania:
https://bibliotekanauki.pl/articles/86585.pdf
Data publikacji:
2012
Wydawca:
Polska Asocjacja Ekologii Krajobrazu
Tematy:
parki narodowe
turystyka
zagospodarowanie turystyczne
Park Narodowy Krugera
Makuleke
turystyka zrownowazona
Republika Poludniowej Afryki
Afryka
Źródło:
Problemy Ekologii Krajobrazu; 2012, 34
1899-3850
Pojawia się w:
Problemy Ekologii Krajobrazu
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the results of mandibular fractures sugrical titanium miniplates treatment on the basis of computer-aided analysis of pantomographical radiograms
Autorzy:
Jędrusik-Pawłowska, M.
Drugacz, J.
Lamża, A.
Wróbel, Z.
Powiązania:
https://bibliotekanauki.pl/articles/333670.pdf
Data publikacji:
2002
Wydawca:
Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:
zdjęcia pantomograficzne
osteosynteza
pomiary wspomagane komputerowo
zwichnięcia kości
pantomographical radiograms
osteosynthesis
computer-aided measurement
bones dislocation
Opis:
At present, in mandibular fractures surgical treatment reposition and titanium miniplates osteosynthesis is the most common method used. The treatment results are assessed on the basis of comparative analysis of two radiograms taken before and after fixations of fractures. In this article the objective method of radiological assessment of osteosynthesis is presented. The crucial part of the method is the computer program which was created at The Institute of Computer Biomedical Systems, Silesian University in Katowice. Comparison of placement of bone fragments on a pair of pantomograms taken before and after a particular surgical operation was done. To make the process of the results evaluation an objective one a new parameter - the relative dislocation coefficient - was implemented. Achieved results enable to assess correctness of bone fracture reposition on the pantomographical pictures taken twice, once before and the next time after osteosynthesis.
Źródło:
Journal of Medical Informatics & Technologies; 2002, 4; MT83-89
1642-6037
Pojawia się w:
Journal of Medical Informatics & Technologies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mandibular reconstruction : biomechanical strength analysis (FEM) based on a retrospective clinical analysis of selected patients
Autorzy:
Jędrusik-Pawłowska, M.
Kromka-Szydek, M.
Katra, M.
Niedzielska, I.
Powiązania:
https://bibliotekanauki.pl/articles/306994.pdf
Data publikacji:
2013
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
bone grafts
mandibular reconstruction
finite element method
reconstruction plates
bone healing
kości
metoda elementów skończonych
przeszczep kostny
Opis:
Restoration of mandible discontinuity defects continues as a challenge for maxillofacial surgeons. Despite the development of algorithms for reconstruction plates fixation and autogenous grafting techniques, complications are still encountered including screw loosening, bone resorption or delayed/incomplete union. The aim of the study was to analyze the possibility of obtaining bone union in the aspect of biomechanical conditions of two mandible reconstructions using an autogenous iliac crest bone graft stabilized with a reconstruction plate, and to attempt to predict patient outcomes based on strength parameters obtained by the finite element analysis. The authors of the present paper were trying to determine to what extent the reconstruction model and changes occurring in hard tissues of the bone and autogenous graft (simulated by changes in material properties) might help predict individual patient courses. The effort of reconstruction plates was defined using the values of the von Mises stress (σHMH) while the effort of bones was determined based on the values of strain intensity εint. The results of the above mentioned simulations are presented in the form of bar graphs and strain/stress distribution maps. Our strength analyses indicate that uncomplicated healing of grafts fixed with reconstruction plates requires that the initial loading of the stomatognatic system should not result in strain intensity exceeding 20–40 [×10–4]. This range of strain intensity evokes an increase in the mineral phase. The state of nonunion between the mandibular bone and the graft might result from prolonged periods of insufficient loading of the mandible during treatment.
Źródło:
Acta of Bioengineering and Biomechanics; 2013, 15, 2; 23-31
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nowa metoda osteosyntezy złamań wyrostków kłykciowych żuchwy przy użyciu implantów ze stopów NiTi
NiTi shape memory staples as a novel surgical fixation method for condylar process fractures
Autorzy:
Jędrusik-Pawłowska, M.
Lekston, Z.
Kromka-Szydek, M.
Drugacz, J.
Cieślik, T.
Powiązania:
https://bibliotekanauki.pl/articles/283785.pdf
Data publikacji:
2008
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
osteosynteza
złamania żuchwy
implanty
stopy NiTi
NiTi alloys
mandibular fractures
implants
osteosynthesis
Źródło:
Engineering of Biomaterials; 2008, 11, no. 77-80; 70-72
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 31

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