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


Tytuł:
Toponimy koreańskie w polszczyźnie – źródła transpozycji, systemy transkrypcyjne i strategie asymilacji fonicznej
Korean toponyms in the Polish language: sources of transposition, transcription systems, and phonic assimilation strategies
Autorzy:
Gwangseok, Kim
Pietrow, Jarosław A.
Tematy:
toponym
onomastics
Korean language
Korean language transcriptions
adaptation
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Wydawca:
Towarzystwo Kultury Języka
Powiązania:
https://bibliotekanauki.pl/articles/3201031.pdf  Link otwiera się w nowym oknie
Opis:
The intensively developing Polish-Korean contacts and direct access to the knowledge of South Korea as one of the major East Asian countries obtained from Internet and media coverage have resulted in Korean toponyms being assimilated in the Polish language to an increasing extent. However, they are adapted in a number of ways, being mediated through two main systems of Latinising the Korean language, i.e. the McCune-Reischauer transcription and the modified MOE transcription, which is officially propagated by Korean authorities. This leads to a certain competition between the two systems, which are, moreover, o en used in the situation of not only lack of command of the source language itself, but also ignorance of the conventional rules of the Latin transcription of Korean geographical names, which are different in both transcriptions. Moreover, toponyms must be assimilated based on various compromises between the phonological system of the source language and the system of the receiving language. Such a helpful compromise might be an additionally used Polonised transcription in the resource of le er symbols, but this requires substantial adjustments and additions as well as unavoidable concessions to make it easier for Polish recipients to decipher texts about Korea. From the perspective of historical standardisation of some characteristic Korean toponyms in Polish publications, various transcription tools, methods of their assimilation and adaptations, as well as the obvious cognitive barriers might become definitely more pronounced and informative for both text authors and recipients.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of an eccentric decoupled charge on rock mass blasting
Autorzy:
Kim, Jung-Gyu
Ali, Mahrous A.M.
Kim, Jong-Gwan
Tematy:
eccentric decoupled charge
fracture pattern
PFC
AUTODYN
decoupling index
wzór pęknięcia
wskaźnik odsprzęgania
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Wydawca:
Główny Instytut Górnictwa
Powiązania:
https://bibliotekanauki.pl/articles/1839045.pdf  Link otwiera się w nowym oknie
Opis:
Experimental and numerical analyses were conducted to investigate the effect of an eccentric loaded contour hole on a rock mass. In the concrete blocks used for the analyses, detonating cords were placed at the centre of the blast hole and eccentrically against the wall of the blast hole. PFC2D and AUTODYN were used for the numerical analyses, and the results of these software showed that an eccentric decoupled charge can result in the directional development of fractures, thereby enabling the control of cracks in the opposite direction. Even though both types of blasting have identical decoupling indexes, the crack and fracture patterns were affected by the location of the explosive, tamping, and other conditions. The results showed that an eccentric charge holder can be applicable to control the fracture direction and the damaged zone. For an eccentric charge, the initial crack was generated at 0.01 ms and expanded in the intended direction. For the eccentric charge, the maximum pressure at the area in contact with the blast hole wall exceeded that for the central decoupled charge by a factor of 5.5. Furthermore, the pressure in the intended direction was twice of that in the opposite direction.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Heat Treatment on the Microstructure and Tensile Deformation Behavior of Oxide Dispersion Strengthened Alloys Manufactured by Complex Milling Process
Autorzy:
Kim, Y.-K.
Kim, J.-H.
Gwon, J.-H.
Lee, K.-A.
Tematy:
ball milling
oxide dispersion strengthening
microstructure
tensile deformation behavior
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Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:
https://bibliotekanauki.pl/articles/352535.pdf  Link otwiera się w nowym oknie
Opis:
This study attempted to manufacture an ODS alloy by combining multiple milling processes in mechanical alloying stage to achieve high strength and fracture elongation. The complex milling process of this study conducted planetary ball milling, cryogenic ball milling and drum ball milling in sequential order, and then the microstructure and tensile deformation behavior were investigated after additional heat treatment. The oxide particles distributed within the microstructure were fine oxide particles of 5~20 nm and coarse oxide particles of 100~200 nm, and the oxide particles were confirmed to be composed of Cr, Ti, Y and O. Results of tensile tests at room temperature measured yield strength, tensile strength and elongation as 1320 MPa, 2245 MPa and 4.2%, respectively, before heat treatment, and 1161 MPa, 2020 MPa and 5.5% after heat treatment. This results indicate that the ODS alloy of this study gained very high strengths compared to other known ODS alloys, allowing greater plastic zones.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selection mining methods via multiple criteria decision analysis using TOPSIS and modification of the UBC method
Autorzy:
Ali, Mahrous A.M.
Kim, Jong-Gwan
Tematy:
TOPSIS
UBC method
mining method selection
multiple criteria decision making
metoda UBC
wybór metod wydobycia
wielokryterialne podejmowanie decyzji
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Wydawca:
Główny Instytut Górnictwa
Powiązania:
https://bibliotekanauki.pl/articles/1839056.pdf  Link otwiera się w nowym oknie
Opis:
Mine designers often face difficulties in selecting an appropriate mining method; however, such a method should be selected based on ore and rock characteristics. The selection of mining methods can be considered a type of multi-criteria decision making, and this depends on many factors used in the selection process. The general method used in this field is the University of British Columbia (UBC) method, which determines the criteria of the properties that are compared to determine the best and worst of several mining methods. In this paper we used as new technique which defines as Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS). The criteria considered in the UBC method include general shape, ore thickness, ore plunge, and grade distribution, beside the rock quality designation (RQD), and the rock substance strength (RSS). This paper presents an improved TOPSIS method based on experimental design. Additionally, this paper will introduce a modified version of the UBC method that can be employed based on Excel sheet. The best mining methods is cut and fill stoping and top slicing with the same rank equal 0.72, and the second-best mining method is square set stoping with rank equal 0.65.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A study of the local entropy generation rate in a porous media burner
Autorzy:
Mohammadi, I.
Esfahani, J. A.
Kim, K. C.
Tematy:
porous media burner
chemical kinetics
volumetric heat transfer
axisymmetric combustion
local entropy generation
excess air ratio
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Wydawca:
Instytut Podstawowych Problemów Techniki PAN
Powiązania:
https://bibliotekanauki.pl/articles/38597672.pdf  Link otwiera się w nowym oknie
Opis:
In this paper, the work and performance of the premixed methane-air porous axisymmetrical burner have firstly been simulated numerically using the CFD tools. For this purpose the set of governing equations has been enriched by an additional energy equation in porous solid, and the chemical species transport has been extended onto the multi-step mechanism (GRI-2-11). This numerical model has been verified on the base of available benchmark experiments. Next, we have studied the local entropy generation problem taking into account not only classical contributions like viscous and turbulent dissipation but also, the porous combustion of gases. The results showed that the greatest portion of entropy generation in the porous medium burner is related to chemical reactions, followed by heat transfer, mass diffusion (mixing) and friction (viscous dissipation), respectively. According to the results, as the excess air ratio increases, the local entropy generation rate due to heat transfer and friction increases and the local entropy generation rate due to chemical reactions is decreased. Also, by increasing the volumetric heat transfer coefficient, the local entropy generation rate due to heat transfer decreases and the local entropy generation rate due to friction and chemical reactions increases. Also, the local entropy generation rate due to mixing does not show a significant change with the changing excess air ratio and volumetric heat transfer coefficient.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiz sredstv mekhanizacii poluchenija semjan bakhchevykh kultur
Analysis of mechanization obtain seeds of melons
Autorzy:
Gorbenko, E.
Norinskaya, A.
Gorbenko, N.
Kim, N.
Tematy:
seed
melon
separation
rotary separator
allocation
agricultural mechanization
analysis
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Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Powiązania:
https://bibliotekanauki.pl/articles/78147.pdf  Link otwiera się w nowym oknie
Opis:
After analyzing the existing domestic and foreign technology and equipment for the isolation of seed melons that ispolzyvayutsya in agriculture. The article describes the structure - technological scheme of allocation of seeds melons, as well as the production line for the allocation of seeds melons.
Dostawca treści:
Biblioteka Nauki
Artykuł

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