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EN
Organised education in Polish has existed in Australia since the middle of the last century. In terms of primary and secondary education, these extracurricular language classes are held mostly on Saturday mornings, rather than weekday af ternoons. Some schools come under local Polish organisations such as Związek Polski (Polish Association), others are part of the Polska Macierz Szkolna (Polish Educational Society). There are also many independent schools which are governed by Parent Associations. These schools continue to gain in popularity – and have particularly done so in recent years. At tertiary level, the Polish language has also been offered at the Department of International Studies at Macquarie University in Sydney since the 1980s.
PL
Wskaźniki jakości życia są niejasne i nieznormalizowane; problem określenia pojedynczego, ilościowego znaczenia jakości życia pozostaje nierozstrzygnięty. Celem niniejszego artykułu jest opisanie typów współczesnego podejścia do określenia jakości życia i zaproponowanie na tej podstawie wyczerpującego modelu teoretycznego w celu wyjaśnienia zjawiska jakości życia i roli zdrowia w jej osiągnięciu. Wykorzystano następujące metody badawcze: analiza i synteza literatury naukowej i danych dokumentacyjnych, metody teoretycznych badań naukowych (analiza, synteza, specyfikacja, klasyfikacja, metoda historyczna, analiza porównawcza, analiza systemowa i strukturalna). Udowodniono, że jakość życia jest ściśle powiązana z ludzkim zdrowiem i obejmuje byt fizyczny, umysłowy i społeczny, z uwzględnieniem przekonań, oczekiwań i światopoglądu. W oparciu o analizę teoretyczną, zaproponowano wieloskładnikową strukturę jakości życia, biorąc pod uwagę zarówno pozytywne, jak i negatywne aspekty życia, popularne wśród ludzi różnej płci, różnego wieku i stanu zdrowia. Jako główne składniki tego modelu zdefiniowano domeny, poddomeny, wskaźniki oraz składowe. Wśród najważniejszych składowych wymieniono: składową fizyczną, składową umysłową, aktywność społeczną, składową materialną, rozwój i tożsamość, środowisko. Jakość życia związaną ze zdrowiem wyodrębniono jako najważniejszą część tego modelu. Opracowano model teoretyczny oparty na zasadach konsekwencji, hierarchii, równouprawnienia, determinizmu, spójności czynników wewnętrznych i warunków zewnętrznych.
EN
The topicality. The indicators of life quality are undetermined and unstandardized; the problem of determination of a single quantitative meaning of the quality of life remains unsolved. The aim of the research – to describe modern approaches to determining the quality of life and on their basis to propose a comprehensive theoretical model for the explanation of life quality phenomenon and the role of health in its formation. Methods: analysis and synthesis of scientific literature, documentary data; methods of theoretical research (analysis, synthesis, specification, classification, historical method, comparative analysis, system and structural analysis). The results: It has been proved that the quality of life is closely related to the health of human beings and it includes physical, mental and social being, considering the beliefs, expectations and world outlook. Based on the theoretical analysis and synthesis, it proposes the multicomponent structure of the quality of life, taking into account both positive and negative aspects of life, common to people of different sex, age, and state of health. Domains, sub-domains, indicators, and variables were defined as the main components of the model. Physical Component, Mental Component, Social Activity, Material Component, Development and Identity, Environment were assigned to the components of the highest level. The health-related quality of life was separated as the single part of the model. Conclusions and recommendations for further research. The theoretical model based on the principles of consistency, hierarchy, equality, determinism, unity of internal factors and external conditions was developed.
EN
The basic structural components of professional-performing self-realization of students-vocalists are found out and characterized. Different approaches to the definition of components of the investigated phenomenon are analyzed. It is concluded that the structure of professional-performing self-realization of students-vocalists should be reflected in the interaction of motivational-value (reflects the presence of motivation-target readiness, which implies a steady orientation of interests and needs and understanding of professional values aimed at self-realization in the process of professional activity), content-operational (the availability of professional knowledge and skills and professional experience), performing-creative (involves the ability to active self-realization along with self-realization within the limits of reproductive activity and consists of the ability to creativity and professional intuition), regulatory (the ability to self-regulation and professional reflection) components. The constituents of motivational-value component of professional-performing self-realization are values that reflect the professional orientation of students-vocalists during their professional activities. Values are the basis for the formation of the individual, the goals of his activities and the development of value orientations. Values in the field of professional activity exist in the form of ideas, ideas, norms, rules, theories. The criterion for the formation of the content-operational component is the degree of knowledge formation about the use of pedagogical-performing skills in educational activities (indicators: self-regulation skills and self-correction of emotional state, availability of experience in teaching work with data, the ability to analyze and solve pedagogical situations). The criterion of the formation of the performing-creative component is the measure of creative use of the acquired knowledge and skills in the process of preparation for pedagogical activity (indicators: free operation of musical material, ability to creatively work on the literary text of a vocal work, the need for self-expression in the process of performing creativity). Criteria of regulatory component the author identified self-regulation and professional reflection. The prospects of further research are seen in the study of the processes of formation of professional-performing self-realization of students-vocalists during the pedagogical practice, research and extra-curricular work.
4
Content available remote Krasinkiewicz maps from compacta to polyhedra
63%
|
2006
|
tom Vol. 54, no 2
137-146
EN
We prove that the set of all Krasinkiewicz maps from a compact metric space to a polyhedron (or a 1-dimensional locally connected continuum, or an n-dimensional Menger manifold, n ≥ 1) is a dense Gδ-subset of the space of all maps. We also investigate the existence of surjective Krasinkiewicz maps from continua to polyhedra.
EN
The study of TiNb-based alloys that are suitable candidates for substitution of TiNi in many biocompatible applications was performed. The experimental alloys with two nominal compositions Ti22Nb and Ti25Nb (at.%) were prepared by plasma melting of TiNb master alloy (55/45 wt.%) and Ti pieces. Different conditions of heat treatment were performed and consisted of homogenisation annealing at 1100°C for 12 hours in flowing Ar gas and water quenching and solution annealing at 900°C for 1 hour in flowing Ar gas and water quenching followed by precipitation aging at different temperatures (200, 400 and 600°C) for 1 hour. The metallographic observation and phase microanalysis of the alloys proved the composition homogeneity. The microstructure of Ti22Nb and Ti25Nb samples after plasma melting was dendritic with very fine martensite needles. After solid solution annealing of plasma melted alloys, the presence of ? phase and " martensite in the microstructure was observed. The microhardness values showed obvious relation with heat treatment and aging. The annealing at 1100°C and quenching increased microhardness because the dendritic and martensite microstructure changed to lamellar one. Furthermore, the higher Nb content in Ti25Nb alloy decreased microhardness of the samples in plasma melted as well as annealed conditions by reason of increasing amount of beta phase.
EN
Observations were made in orientated state of inter-metallic Ni3Al based compound alloyed by zirconium. Zirconium in the form of wire or plasma melted foundry alloy Ni-Zr were used for preparation of the samples. The samples were cast by induction vacuum casting into the shape of cylinders. These castings were then directionally solidified in corundum tubes with the specified apex angle in a two-zone crystallisation furnace. Used rate of directional solidification was 50 mm/h. Cross sections and longitudinal sections of individual samples were used for determination of porosity, micro-hardness and for evaluation of character of created structures. It was established that the basic matrix contained formations of Ni3Al and elongated formations of Ni5Al3. Inter-dendritic regions contain eutectics with lamellar structure, which is formed by the Ni3Al phase and by the Zr-rich phase. Microhardness in the samples was determined in detail on the surface of the scratch pattern in polished state in accordance with precisely defined procedure, both in longitudinal and cross section. The scratch patterns were afterwards slightly etched in order to determine microhardness in individual phases and on grain boundaries. Microhardness was measured on microhardness tester FM-100 with use of the measuring unit "automatic microhardness testing system FM-ARS". It is very interesting that no big differences were found between the values of microhardness in the basic phase of Ni3Al rich in zirconium and grain boundaries, where this value varied approx. within the interval from 360š40 HV 0.05. Only eutectics formed by the Ni3Al phase and by the Zr-rich phase showed an increased microhardness. Evaluation of structure has been further completed with determination of porosity. Porosity in these samples was not too high and its value is of the order of hundreths of percent.
EN
Magnesium alloys has been used for a wide variety of applications, namely from the reason of their low density and high strength-to-weight ratio. Low inertia, which results from its low density, is advantageous in rapidly moving parts, for example automobile wheels and other automobile parts [1-2]. The basic magnesium alloys include ones which contain manganese, aluminium, zinc and other elements which allow obtaining suitable properties. Scope of utilisation of foundry magnesium alloys is continuously being extended, so if we want to operate as competitive producers, it is necessary to investigate very actively properties of individual alloys, optimise their chemical composition, study issues of their metallurgical preparation, verify experimentally their casting properties and conditions of successful casting of castings by individual methods, including heat treatment, forming and others specials methods of processing as are application of new forming method ECAP. Application of this method on aluminium alloys is described by many authors. From the reason low formability metals with hexagonal lattice the application of this method on magnesium alloys is now developed [3]. Paper presents results of investigations in new commercial prepared of modify magnesium alloy MgAl8MnCa with the following chemical composition (wt %): Al - 7,8; Zn - 0.05; Mn - 0.172; Ca - 0.9; rest Mg. Modify magnesium alloy MgAl8MnCa is a competitive cost alloys with aluminum 380. It is a creep resistant alloy with the capability of long-term operation at temperatures up to 150°C under high loads. This alloy exhibits good castability, corrosion resistance and mechanical properties at room temperature, similar or better to AZ91D. The main modifying element is Ca. Comparison the basic mechanical properties are shown in Table 1 [4]. The creep resistance of the alloy is substantially superior to that of commercial magnesium alloys at temperature of 130-150°C under stresses of 50-80MPa. The main applications targeted by this alloy include gearbox housings, valve covers, intake manifolds, oil pans, oil pumps and many under the hood components. For the metallographic analysis of structure magnesium alloy MgAl8MnCa the light microscopy and SEM were used.
EN
For purpose of investigation of high purity materials Ni-22Al-1B and Ni-24Al-1B alloys (all in at.%) were prepared by melting of basic components in vacuum induction furnace. The cylinder castings were afterwards directionally solidified in two-phase super-kanthal resistance furnace working on Bridgman's method principle. Re-melting proceeded in corundum tubes with the apex angle at 1 550°C and at uniform rate 50 mm/h. The alloys fabricated by this way were crossly and longitudinally cut and the sections were used for determination of porosity, micro-hardness and for evaluation of micro-structure. The common feature of micro-structure of the both alloys was its coarseness. Further features of structure were different. Long parallel lines of mesh passed through the sections with 22 at.% Al. It was not observed in the sections with 24 at.% Al. B-rich phase was inside of these structures. Definite composition of phase is still determinating for reason of boron low sensitivity of many detection devices. Micro-hardness determination of the samples of both alloys was measured on micro-hardness tester FM-100 with automatic testing unit FM-ARS 900. Two types of measurement were carried out. The first on unetched samples. This value characterized sample as component. The second it was measured micro-hardness of structures presented on scratch patterns after their etching. Average values of matrix micro-hardness were about 270š20 HV 0.05. The B-rich phase had much greater values. It is assumed, that phase can cohesively strengthen these alloys. The last measurement carried out on the samples of both alloys was determination of their porosity. Resultant values were approximally 0.05š0.03%.
9
Content available remote Metoda selekcji dostawców komponentów dla elastycznych systemów montażowych
63%
|
2011
|
tom z. 83[279], nr 1
197-209
EN
The method is constructed for local supply network. The network consists of the manufactures of component parts, tlie assembly plants and the final customers. The method is used for selection of the manufactures of component parts - for all assembly plants. The linear mathematical models of mixed integer programming are used in the method. The minimization of supply chain service costs is regarded in the described method. The schedules of transport tasks are constructed for transport between the selected manufactures of component parts and the assembly plants. Results of computational experiments with the proposed method are compared. Two cases are compared: the first, where interests of all supply network are regarded, the second, where each assembly plant is treated separately.
10
Content available remote Polycyclic aromatic hydrocarbons in heavy fuel oil components
51%
EN
Heavy fuel oils are blended products based on the residues from various refinery distillation and conversion processes. In refineries with hydrogen process units or lubricating oil rerafination units, the hydroprocessed vacuum residue or the used lubricating oil are fuel oil components. Appreciable concentrations of polycyclic aromatic hydrocarbons (PAH) can be present in heavy fuel oils depending on the type of the components used. The goal of this study was the determination of the selected PAHs which are probably phototoxic or carcinogenic. The following components were put to the test: straight-run vacuum residue, hydroprocessed vacuum residue, vacuum gas oil, two samples of the used lubricating oils and two samples of vacuum distillate of the employed oils. The next PAH concentrations were determined: anthracene, benz(a)antracene, chrysene, benzo(b+k)fluorathene, benzo(a)pyrene, dibenzo(a,h)anthracene, indeno(1,2,3-cd)pyrene, benzo(g,h,i)perylene. The larger amounts of the most phototoxic and carcinogenic PAHs: benzo(a)pyrene and dibenzo(a,h)anthracene were found in the applied lubricating oil components.
11
Content available remote Technologia ponownego użycia w oparciu o podejście obiektowe
51%
PL
Celem naszego opracowania jest uwidocznienie faktu, że ponowne użycie powinno być pojmowane w terminach całego cyklu życiowego produktu programistycznego. Kiedy ponownemu użyciu podlegają produkty skonstruowane we wczesnych fazach cyklu życiowego, to prawdopodobieństwo ponownego wykorzystania produktów innych faz jest także wysokie. W opracowaniu próbujemy również pokazać, że nie tylko czynniki techniczne mają wpływ na osiąganie zysków z ponownego użycia. Ponowne użycie nie zdarza się. Wymaga świadomych inwestycji. Wymaga wiedzy, jak postępować, by inwestycje w ponowne użycie zwróciły się. W opracowaniu główny nacisk został położony na podejście obiektowe wydatnie wspierające technologię ponownego użycia dzięki posiadaniu pewnych własności, które redukują złożoność niejako wbudowaną w wiele produktów programistycznych.
EN
The aim of our report is to make apparent that should be conceived in terms of the entire software development life cycle. When early life cycle workproducts are reused, there is a high probability of reusing downstream workproducts, as well. We also try to present some nontechnical issues involved in obtaining the benefits of reuse, because reuse will not just happen. It requires a conscious investment by the production team. The company has to know how it is going to get the return on that investment. Through the report we put the main emphasis on the object-oriented technology that has the superior technical support for components reuse. The object-oriented approach provides several features that reduce the complexity inherent in many software development projects.
EN
Subject of this work is an intermetallic alloy based on TiAl and doped with Nb with high creep resistance and good mechanical properties. The experimental Ti-Al-Nb material with two compositions of Ti-45Al-10Nb and Ti-40Al-15Nb was prepared from master alloy TiNb (55/45 wt. %) and Al pieces by plasma melting, vacuum induction remelting and casting into the rod shape. The samples were homogenisation annealed at 1100°C for 12 hours in Ar atmosphere and water quenched from 700°C. Heat treatment at 700 °C for 8 hours in Ar atmosphere as well as in hydrogen flowing gas was realised to prepare experimental material for hydrogen effect study. Microstructure of the specimens was studied by light and scanning electron microscopies, microhardness measurement and phase microanalysis were performed. The lamellar microstructure of the samples in as-cast and heat treated conditions formed of the ? (45 at.% Al) and ?2 (41 at.% Al) phases resulted from metallographic observation and EDS phase analysis. Microhardness values of the samples decreased after annealing and quenching. Effect of hydrogen on lamellar microstructure and microhardness values was studied on the hydrogen-charged and hydrogen-free specimens. X-ray diffraction analyses were performed on Ti-Al-Nb specimens.
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