Temat: facing - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Parameters of mode and characteristics of the process of broad layered facing of the cylindrical parts with the help of self-protective dust
Parametry rezhima i kharakteristiki processa shirokoslojnoj naplavki cilindrisheskikh detalejj samozashhitnojj poroskkovoj provolokoj
Autorzy:: Pakholyuk, A.
Skulskyi, V.
Hordyi, I.
Powiązania:: https://bibliotekanauki.pl/articles/793753.pdf
Data publikacji:: 2011
Wydawca:: Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:: broad layer
metal
facing
shaft
dust
melting
facing productivity
cylindrical shape
degradation
self-protective dust
Źródło:: Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2011, 11
1641-7739
Pojawia się w:: Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: O podatności na wykwity współczesnych murów licowych
The susceptibility to efflorescence of contemporary facing walls
Autorzy:: Wesołowska, M.
Powiązania:: https://bibliotekanauki.pl/articles/217764.pdf
Data publikacji:: 2009
Wydawca:: Stowarzyszenie Konserwatorów Zabytków
Tematy:: wykwit
mur licowy
efflorescence
facing wall
Opis:: Niniejsza praca porusza temat estetyki murów licowych. Przeanalizowano obecnie obowiązujące polskie normy dotyczące doboru zapraw do elementów murowych. Na podstawie obserwacji przeprowadzonych na stanowiskach badawczych ustalono czynniki wpływające na powstawanie wykwitów.
The paper presents the aesthetic aspects of facing walls. The current Polish standard requirements were analyzed in relation to the selection of mortars for masonry units. The factors determining the development of efflorescence were established on the basis of observations made on test positions.
Źródło:: Wiadomości Konserwatorskie; 2009, 26; 115-124
0860-2395
2544-8870
Pojawia się w:: Wiadomości Konserwatorskie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Review of the Hard-Facing Technology Application for Reparation of the Given Parts in Various Branches of Industry
Autorzy:: Lazić, V.
Arsić, D.
Mutavdžić, M.
Nikolić, R.
Meško, J.
Radović, L.
Ilić, N.
Powiązania:: https://bibliotekanauki.pl/articles/2064968.pdf
Data publikacji:: 2018
Wydawca:: STE GROUP
Tematy:: regeneration
hard-facing
friction
wear
machine parts
Opis:: This paper deals with the problem of defining the optimal procedure for reparation of the machine parts of large dimensions and complex shapes. The procedure consists of establishing the causes of the part's damages, definition of the reparation technology, with selection of its parameters and ways of execution. The reparation is done by hard-facing, with heat treatment that consists of preheating, additional heating and the post hard-facing tempering. The process parameters' selection includes choosing the right filler metal(s), ways and order of depositing the hard-faced layers, ways of reaching and maintaining the preheating temperatures, checking of the base metal's chemical composition and mechanical properties and deciding on the post-process heat and mechanical processing of the executed hard-facing. The executed reparation of the forging hammer's mallet, presented in details, serves as an example how the reparation can successfully serve as a substitute for procuring the new part and thus producing the savings both directly in lower costs and indirectly in shortening the down-time of the damaged part operation.
Źródło:: Multidisciplinary Aspects of Production Engineering; 2018, 1, 1; 279--285
2545-2827
Pojawia się w:: Multidisciplinary Aspects of Production Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Never forget where you come from: Critical diversity literacy and structure-facing virtue among first-year students
Autorzy:: Conradie, Marthinus
Lasocka-Bełc, Olga
Powiązania:: https://bibliotekanauki.pl/articles/37257797.pdf
Data publikacji:: 2024-06-25
Wydawca:: Akademia Pedagogiki Specjalnej. Language and Society Research Committee
Tematy:: critical diversity literacy
structure-facing virtue
racism
Opis:: This article investigates tensions that arose when a group of Learning Facilitators (LFs) and students collaboratively examined the socially constructed nature of racial identity. These discussions transpired in a South Africa Department of English, in an introductory module in postcolonial literature designed for first-year students. The core contribution of the article lies in conjoining critical diversity literacy (CDL) and structure-facing virtue to theorise this tension. It also produces suggestions for deepening the emancipatory potential of such discussions about identity and power in ways that are intended to be relevant to other settings in which comparable discussions are occurring between students and contractually appointed university teachers like LFs.
Źródło:: Language, Discourse & Society; 2024, 12, 1 (23); 73-92
2239-4192
Pojawia się w:: Language, Discourse & Society
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Research methodology proposed for resilience of contemporary facing walls
Propozycja metodyki badań prognozująca trwałość współczesnych murów licowych
Autorzy:: Kaczmarek, A.
Wesołowska, M.
Powiązania:: https://bibliotekanauki.pl/articles/402633.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:: efflorescence
facing wall
mortar
methodology
wykwit
przeciwległa ściana
moździerz
metodologia
Opis:: The article refers to proposition of research methodology for durability prognosis for facial walls. In present fast technology development there are new materials introduced to construction, and although their properties are known there is not necessary experience regarding their durability and resistance to influences of environmental impact for many years. In authors research there is possibility of migration of soluble compounds originating from the same ceramic material as well as from mortars in laboratory and field tests. After the analysis of European construction regulations the authors stated that they have not been prepared in such state to be a sufficient base for evaluation of durability of a facial wall. This element was left for designers decision, which results often in accidental choice of compound materials.
Artykuł dotyczy propozycji metodyki badawczej prognozowania trwałości murów licowych. Przy obecnym szybkim rozwoju technologii wprowadza się do budownictwa coraz to nowe materiały, których chociaż właściwości są znane, to nie ma jednak wystarczających doświadczeń co do ich trwałości i odporności na wpływy wieloletniego oddziaływania środowiska. W dotychczasowych badaniach autorki rozpatrzyły możliwość migracji rozpuszczalnych związków pochodzących z samego materiału ceramicznego jak również z zapraw w warunkach laboratoryjnych i poligonowych. Po analizie europejskich przepisów budowlanych stwierdziły, że nie zostały dotychczas przygotowane w takim stopniu, aby mogły być wystarczającą podstawą do oceny trwałości muru licowego. Ten element pozostawiono w gestii projektantów, w konsekwencji czego dobór materiałów składowych jest często dziełem przypadku.
Źródło:: Budownictwo i Inżynieria Środowiska; 2016, 7, 2; 81-86
2081-3279
Pojawia się w:: Budownictwo i Inżynieria Środowiska
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: R&D on divertor plasma facing components at the Institute for Plasma Research
Autorzy:: Patil, Y.
Khirwadkar, S.
Belsare, S. M.
Swamy, R.
Khan, M. S.
Tripathi, S.
Bhope, K.
Powiązania:: https://bibliotekanauki.pl/articles/146770.pdf
Data publikacji:: 2015
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: divertor
plasma facing material
high heat fl ux test
transient IR thermography
Opis:: This paper is focused on various aspects of the development and testing of water cooled divertor PFCs. Divertor PFCs are mainly designed to absorb the heat and particle fluxes out flowing from the core plasma of fusion devices like ITER. The Divertor and First Wall Technology Development Division at the Institute for Plasma Research (IPR), India, is extensively working on development and testing of divertor plasma facing components (PFCs). Tungsten and graphite macro-brush type test mock-ups were produced using vacuum brazing furnace technique and tungsten monoblock type of test mock-ups were obtained by hot radial pressing (HRP) technique. Heat transfer performance of the developed test mock-ups was tested using high heat flux tests with different heat load conditions as well as the surface temperature monitoring using transient infrared thermography technique. Recently we have established the High Heat Flux Test Facility (HHFTF) at IPR with an electron gun EH300V (M/s Von Ardenne Anlagentechnik GmbH, Germany) having maximum power 200 kW. Two tungsten monoblock type test mock-ups were probed using HHFTF. Both of the test mock-ups successfully sustained 316 thermal cycles during high heat fl ux (HHF) tests. The test mock-ups were non- -destructively tested using infrared thermography before and after the HHF tests. In this note we describe the detailed procedure used for testing macro-brush and monoblock type test mock-ups using in-house transient infrared thermography set-up. An acceptance criteria limit was defined for small scale macro-brush type of mock-ups using DTrefmax value and the surface temperature measured during the HHF tests. It is concluded that the heat transfer behavior of a plasma facing component was checked by the HHF tests followed by transient IR thermography. The acceptance criteria DTrefmax limit for a graphite macro-brush mock-up was found to be ~3centi grade while for a tungsten macro-brush mock-up it was ~5centi grade.
Źródło:: Nukleonika; 2015, 60, 2; 285-288
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Overview of processing technologies for tungsten-steel composites and FGMs for fusion applications
Autorzy:: Matějíček, J.
Nevrlá, B.
Vilémová, M.
Boldyryeva, H.
Powiązania:: https://bibliotekanauki.pl/articles/148904.pdf
Data publikacji:: 2015
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: plasma-facing components
functionally graded materials (FGMs)
tungsten
steel
plasma spraying
powder metallurgy
Opis:: Tungsten is a prime candidate material for the plasma-facing components in future fusion devices, e.g. ITER and DEMO. Because of the harsh and complex loading conditions and the differences in material properties, joining of the tungsten armor to the underlying construction and/or cooling parts is a complicated issue. To alleviate the thermal stresses at the joint, a sharp interface may be replaced by a gradual one with a smoothly varying composition. In this paper, several techniques for the formation of tungsten-steel composites and graded layers are reviewed. These include plasma spraying, laser cladding, hot pressing and spark plasma sintering. Structure, composition and selected thermal and mechanical properties of representative layers produced by each of these techniques are presented. A summary of advantages and disadvantages of the techniques and an assessment of their suitability for the production of plasma-facing components is provided.
Źródło:: Nukleonika; 2015, 60, 2; 267-273
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: MHD forced convection using ferrofluid over a backward facing step containing a finned cylinder
Autorzy:: Toumi, Meriem
Bouzit, Mohamed
Bouzit, Fayçal
Mokhefi, Abderrahim
Powiązania:: https://bibliotekanauki.pl/articles/2106228.pdf
Data publikacji:: 2022
Wydawca:: Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:: fin positions
forced convection
nanoparticles
heat transfer
finned cylinder
magnetohydrodynamic
backward facing step
Opis:: In this paper, a numerical study of forced convection on a backward facing step containing a single-finned fixed cylinder has been performed, using a ferrofluid and external magnetic field with different inclinations. The partial differential equations, which determine the conservation equations for mass, momentum and energy, were solved using the finite element scheme based on Galerkin’s method. The analysis of heat transfer characteristics by forced convection was made by taking different values of the Reynolds number (Re between 10 and 100), Hartmann number (Ha between 0 and 100), nanoparticles concentration (φ between 0 and 0.1) and magnetic field inclination (γ between 0° and 90°); also, several fin positions α [0°–180°] were taken in the counter clockwise direction by a step of 5. After analysing the results, we concluded that Hartmann number, nanoparticles concentration, Reynolds number and magnetic field angles have an influence on the heat transfer rate. However, the fin position on the cylinder has a big impact on the Nusselt number and therefore on heat transfer quality. The best position of the fin is at (α = 150°), which gives the best Nusselt number and therefore the best heat trans-fer, but the fin position at (α = 0°) remains an unfavourable case that gives the lowest Nusselt values.
Źródło:: Acta Mechanica et Automatica; 2022, 16, 1; 70--81
1898-4088
2300-5319
Pojawia się w:: Acta Mechanica et Automatica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Numerical Analysis of Turbulent Flow over a Backward-facing Step in an Open Channel
Autorzy:: Saleem, Bala Kawa M.
Mustafa, Andam
Kareem, Dalshad Ahmed
Yuce, Mehmet Ishak
Szydłowski, Micchał
Al-Ansari, Nadhir
Powiązania:: https://bibliotekanauki.pl/articles/31340451.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:: open channel
backward-facing step
reattachment length
expansion ratio
Kɛ- model
Kω- model
Opis:: Computational examinations of the flow field in an open channel having a single Backward- -Facing Step (BFS) with a constant water depth of 1.5 m were performed. The effects of the expansion ratio, and the flow velocity along the reattachment length, were investigated by employing two different expansion ratios of 1.5 and 2, and eight various flow velocities of 0.5, 1, 2, 3, 4, 5, 7.5 and 10 m/sec in the Computational Fluid Dynamic (CFD) simulations. Commercially available CFD software, ANSYS FLUENT, was used for calculations. The simulation outcomes were verified using experimental results. Moreover, analyses were performed by using two equation turbulence closure models, K-ε family (standard, RNG and realizable), and K-ω family (Wilcox’s and SST K-ω). The analyses have revealed that the reattachment length increases with an increase in the expansion ratio, the flow velocity and the Reynolds number. The results obtained for two expansion rates and eight different flow velocities have shown insignificant differences between one turbulence closure model and the others. Furthermore, it was observed that both velocity and expansion ratios have an effect on the reattachment zone size.
Źródło:: Archives of Hydro-Engineering and Environmental Mechanics; 2023, 70, 1; 49-69
1231-3726
Pojawia się w:: Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Investigating the thermal and structural responses in hard-facing application with the GTAW process
Autorzy:: Savaş, Atilla
Powiązania:: https://bibliotekanauki.pl/articles/1839673.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: hard-facing
moving heat source
two-way coupling
gas tungsten arc welding (GTAW)
FEM
Opis:: The gas tungsten arc welding (GTAW) process is an excellent way of performing quality hard- -facing applications. The residual stresses and distortions are encountered in hard-facing. There are several methods to decrease residual stresses. Changing the welding pattern, changing thickness and preheating can be mentioned for this purpose. In this work, the influence of the welding pattern, plate thickness and preheating was investigated. The temperature distribution with the same welding conditions was used for validation of the numerical model. The total deformation in a 2mm plate was 15 times higher than in a 6mm plate with the same welding conditions.
Źródło:: Journal of Theoretical and Applied Mechanics; 2021, 59, 3; 343-353
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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