Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "(IK)." wg kryterium: Wszystkie pola

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 44
Tytuł:
Applicability Study of Co and Eu Extraction Using Solvent from Ca Rich HCl Solution
Autorzy:
Oh, Maengkyo
Lee, Keunyoung
Foster, Richard I.
Kim, Ik-Soo
Lee, Chang-Ha
Powiązania:
https://bibliotekanauki.pl/articles/2203724.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
solvent extraction
radioactive wastewater
waste valorization
Cyanex 272
Cyanex 301
Opis:
This study was conducted to treat radioactive acidic wastewater, which contained radioactive 60Co and 152Eu. The wastewater can be generated during a decommissioning project to reduce the volume of radioactive concrete waste from nuclear facilities. With a variety of methods for separating the radioactive nuclides available, we evaluated the separation applicability of the solvent extraction method. From our results, Co and Eu could be easily extracted from the Ca rich wastewater using Cyanex301 (Co extraction (%) 99.8, Eu extraction (%) 99.6) without Ca extraction. On the other hand, Eu could be selectively separated by Cyanex272 (Eu extraction (%) 99.1) without Co and Ca extraction at pH 2~3. Therefore, the extraction method can be tailored according to the target radionuclides present in the wastewater and be selectively applied to the overall treatment process. By extracting radioactive Co and Eu from acidic wastewater to below the discharge criteria, treated wastewater could be regarded as non-radioactive industrial waste, to be economically and easily handled. Moreover, it may be possible to reuse separated Co and Eu for research and industrial applications by realizing waste valorization.
Źródło:
Archives of Metallurgy and Materials; 2023, 68, 1; 123--126
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Consolidation and Oxidation of Ultra Fine WC-Co-HfB2 Hard Materials by Spark Plasma Sintering
Autorzy:
Park, Hyun-Kuk
Oh, Ik-Hyun
Kim, Ju-Hun
Hong, Sung-Kil
Lee, Jeong-Han
Powiązania:
https://bibliotekanauki.pl/articles/2049178.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
WC cemented carbide
hafnium diboride
spark plasma sintering
oxidation
mechanical property
Opis:
In this study, a novel composite was fabricated by adding the Hafnium diboride (HfB2) to conventional WC-Co cemented carbides to enhance the high-temperature properties while retaining the intrinsic high hardness. Using spark plasma sintering, high density (up to 99.4%) WC-6Co-(1, 2.5, 4, and 5.5 wt. %) HfB2 composites were consolidated at 1300°C (100°C/min) under 60 MPa pressure. The microstructural evolution, oxidation layer, and phase constitution of WC-Co-HfB2 were investigated in the distribution of WC grain and solid solution phases by X-ray diffraction and FE-SEM. The WC-Co-HfB2 composite exhibited improved mechanical properties (approximately 2,180.7 kg/mm2) than those of conventional WC-Co cemented carbides. The high strength of the fabricated composites was caused by the fine-grade HfB2 precipitate and the solid solution, which enabled the tailoring of mechanical properties.
Źródło:
Archives of Metallurgy and Materials; 2021, 66, 4; 997-1000
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of Transition Metal Carbides on Microstructure and Mechanical Properties of Ultrafine Tungsten Carbide Via Spark Plasma Sintering
Autorzy:
Lee, Jeong-Han
Oh, Ik-Hyun
Park, Hyun-Kuk
Powiązania:
https://bibliotekanauki.pl/articles/2048887.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
WC cemented carbide
transition metal carbide
spark plasma sintering
grain growth inhibitor
hardness
Opis:
WC-Co cemented carbides were consolidated using spark plasma sintering in the temperature 1400°C with transition metal carbides addition. The densification depended on exponentially as a function of sintering exponent. Moreover, the secondary (M, W)Cx phases were formed at the grain boundaries of WC basal facet. Corresponded, to increase the basal facets lead to the plastic deformation and oriented grain growth. A higher hardness was correlated with their grain size and lattice strain. We suggest that this is due to the formation energy of (M, W)Cx attributed to inhibit the grain growth and separates the WC/Co interface.
Źródło:
Archives of Metallurgy and Materials; 2021, 66, 4; 1029-1032
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluating the Durability of SiC-Coated Carbon Composites Under Thermal Shock Conditions
Autorzy:
Lee, Ji Eun
Bae, Soo Bin
Cho, Nam Choon
Lee, Hyung Ik
Meng, Zicheng
Lee, Kee Sung
Powiązania:
https://bibliotekanauki.pl/articles/2049309.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
durability
carbon composites
silicon carbide coating
chemical vapor deposition
chemical vapor reaction
Opis:
Oxidation and indentation properties of silicon carbide-coated carbon composites were investigated to analyze its durability under atmospheric thermal shock conditions. The silicon carbide-coated samples were prepared either with chemical vapor deposition or chemical vapor reaction/chemical vapor deposition hybrid coating. The remnant weight of uncoated and coated samples was investigated after each thermal shock cycle. The surface and cross-section of coated samples were then analyzed to confirm morphological changes of the coating layers. The spherical indentation test for uncoated and coated samples were also performed. As a result, silicon carbide coating improved the oxidation resistance, elastic modulus, and hardness of carbon composites. Hybrid coating drastically enhanced the durability of samples at high temperature in atmospheric conditions.
Źródło:
Archives of Metallurgy and Materials; 2021, 66, 3; 777-782
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of Superior Thermal Protective Coating on Carbon Composites
Autorzy:
Bae, Soo Bin
Lee, Ji Eun
Paik, Jong Gyu
Cho, Nam Choon
Lee, Hyung Ik
Powiązania:
https://bibliotekanauki.pl/articles/354076.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
composite
silicon carbide
CVR
CVD
Opis:
A superior SiC based thermal protection coating process for carbon composite, which can be especially effective in a hot oxidizing atmosphere, was established in this study. A multi-coating process based on a combination of Chemical Vapor Reaction (CVR) and Chemical Vapor Deposition (CVD) was developed. Various protective coating layers on carbon composite were tested in hot oxidizing surroundings and the test results verified that the thermal ablation rate could be dramatically reduced down to 3.8% when the protective multi-coating was applied. The thermal protection mechanism of the coating layers was also investigated.
Źródło:
Archives of Metallurgy and Materials; 2020, 65, 4; 1371-1375
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Does silicon increase the tolerance of a sensitive pepper genotype to salt stress?
Autorzy:
Altuntas, O.
Dasgan, H.Y.
Akhoundnejad, Y.
Kutsal, I.K.
Powiązania:
https://bibliotekanauki.pl/articles/12711848.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Opis:
We evaluated the growth performance, ion regulation, osmotic potential, and chlorophyll content of two pepper (Capsicum annuum) genotypes with different salinity tolerance levels (Karaisali is tolerant and Demre is sensitive to salinity) under saline conditions with the application of silicon (Si). Plants were grown in pots filled with vermiculite in control or saline conditions [150 mM sodium chloride (NaCl)] with or without 2 mM Si from potassium silicate for 60 days after sowing. Better growth effects due to Si application were observed in the sensitive pepper Demre than in Karaisali, particularly, the root and fruit growth were remarkably enhanced in Demre. Furthermore, Si application reduced sodium (Na) and chloride (Cl) concentrations and increased potassium (K) and calcium (Ca) concentrations in the leaves and roots. The reduction in Na concentration in the leaves due to Si application was 9% and 2% in Demre and Karaisali, respectively. Under saline conditions, the increase in K concentration due to Si application in the leaves was 11% and 14% in Demre and Karaisali, respectively. In addition, Si application resulted in an increase in K/Na ratios in the leaves by 22% and 17% in Demre and Karaisali, respectively, in the presence of 150 mM NaCl. The increase in Ca concentration in the roots due to Si application was 55% in Demre compared with only 9% in Karaisali. The addition of NaCl decreased the chlorophyll concentration in both the genotypes, but Si application increased it. This increase in chlorophyll concentration was higher in Demre than in Karaisali. Si application allowed both the genotypes to maintain higher osmotic potentials than those in untreated plants. As a result, it may be claimed that under salt stress, Si application has a more alleviative effect on the susceptible pepper genotypes (Demre) than on the tolerant one (Karaisali). This information could be useful for the practical application of Si under saline conditions.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2020, 19, 2; 87-96
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Economic efficiency of community-based flood risk management: An empirical study from Indonesia
Autorzy:
Sedyowati, Laksni
Chandrarin, Grahita
Nugraha, Ginanjar I.K.
Nugroho, Bambang
Powiązania:
https://bibliotekanauki.pl/articles/292291.pdf
Data publikacji:
2020
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
community participation
cost benefit analysis
economic efficiency
flood resilience
flood risk management
urban drainage
Opis:
Flood risk management are considerably influenced by several factors, such as all sources of flooding, social circum-stances, policy and even the potential for local economic growth. To encourage government, business, community and other parties to continue investing in flood risk management projects, it is necessary to give understanding that the projects can also provide economic benefits through systematic predictions and assessments of costs, benefits and social values, especially on flood-affected communities. This study aims: (1) to develop knowledge and understanding on small-scale flood risk management project in Malang City, Indonesia, and; (2) to assess the economic efficiency of the project investment considering all benefits, both monetary and non-monetary. The research method is a mixed method combining quantitative questionnaires (N = 53 from 162 families) with qualitative in-depth interviews (N = 10) and field observations. The runoff discharge and the inundation depth were calculated using hydrology and hydraulic analysis, while the economic efficiency was analysed using cost benefit analysis (CBA). The results show that the community-based flood risk management system can reduce the flood risk up to 30% compared to before the implementation of that system. This system also provides direct financial benefits through the use of drainage channels for fish and vegetables farming. It causes the increase of the net social benefit about 70–90% and the net present value (NPV) greater than zero (NPV > 0). Therefore, the project investment is recommended to be proceeded.
Źródło:
Journal of Water and Land Development; 2020, 46; 200-208
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of Si Addition on Microstructure and Mechanical Properties of the Al Alloys with High Cr Content Prepared by Gas Atomization and SPS Processes
Autorzy:
Kim, Yong-Ho
Oh, Ik-Hyun
Yoo, Hyo-Sang
Park, Hyun-Kuk
Lee, Jung-Han
Son, Hyeon-Taek
Powiązania:
https://bibliotekanauki.pl/articles/354961.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Al-Cr-Si
gas atomization
spark plasma sintering
powder
rapid solidification
Opis:
This research describes effects of Si addition on microstructure and mechanical properties of the Al-Cr based alloys prepared manufactured using gas atomization and SPS (Spark Plasma Sintering) processes. The Al-Cr-Si bulks with high Cr and Si content were produced successfully using SPS sintering process without crack and obtained fully dense specimens close to nearly 100% T. D. (Theoretical Density). Microstructure of the as-atomized Al-Cr-Si alloys with high contents of Cr and Si was composed multi-phases with hard and thermally stable such as Al13Cr4Si4, AlCrSi, Al8Cr5 and Cr3Si intermetallic compounds. The average hardness values were 703 Hv for S5, 698 Hv for S10 and 824 Hv for S20 alloy. Enhancement of hardness value was resulted from the formation of the multi-intermetallic compound with hard and thermally stable and fine microstructure by the addition of high Cr and Si using rapid solidification and SPS process.
Źródło:
Archives of Metallurgy and Materials; 2020, 65, 3; 1045-1049
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gods Covenants and the Sacraments of Christian Initiation
Przymierze Boże i sakramenty chrześcijańskiej inicjacji
Autorzy:
Ugwuanyi, Faustinus Ik.
Powiązania:
https://bibliotekanauki.pl/articles/2035165.pdf
Data publikacji:
2020-02-17
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
Tematy:
przymierza Boga
sakramenty inicjacji chrześcijańskiej
Chrystus − mądrość i moc Boga
God's covenants
the Sacraments of Christian initiation
Christ−God's wisdom and power
Opis:
Katechetyczne wyjaśnienie Pisma Świętego i jego związku z liturgią stało się pilne, szczególnie w dzisiejszym świeckim społeczeństwie, w którym większość doktryn i praktyk religijnych Kościoła jest zagrożonych utratą znaczenia lub niewłaściwą interpretacją. Twierdzono również, że istnieje związek między przymierzami Boga a sakramentami inicjacji chrześcijańskiej w Nowym Testamencie. Artykuł ma na celu ukazanie biblijnej relacji sakramentów wtajemniczenia chrześcijańskiego z przymierzami Boga. Badanie to prowadzi nie tylko do wyjaśnienia ze względu na rosnącą świadomość i ciągłe pogłębianie rozumienia, ale także potwierdzenie znaczenia tych sakramentów i zasadniczej natury Chrystusa, który jest mądrością i mocą Boga.
A Catechetical explanation of the Scriptures and their relation to liturgy has become urgent, especially in today's secular society where most of the Church's doctrines and faith-practices are under threat of either losing their meaning or misinterpreted. Also, it has been contended that there is a connection between God's covenants and the New Testament Sacraments of Christian initiation. The article aims to explain the Scriptural relationship of the Sacraments of Christian initiation with God's covenants. The relevance of the study is not only to provide an explanation because of the growing awareness and the constant search for explanations of things but also to reaffirm the importance of these Sacraments and the essential nature of Christ who is God's wisdom and power.
Źródło:
Roczniki Teologiczne; 2019, 66, 11; 35-50
2353-7272
Pojawia się w:
Roczniki Teologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Why Aquinas Stopped Commenting on Boethius’s De Trinitate
Autorzy:
Ugwuanyi, Faustinus Ik.
Powiązania:
https://bibliotekanauki.pl/articles/507300.pdf
Data publikacji:
2020-03-30
Wydawca:
International Étienne Gilson Society
Tematy:
Aquinas
Boethius
De Trinitate
Trinity
Neoplatonism
Opis:
The article is an attempt to answer the question of why Aquinas stops his commentary on Boethius’s De Trinitate at question six, article four, whereas this is before the point in the treatise where Boethius gets to the heart of the subject matter. The author shows that Aquinas (1) decides to do so because the treatise cannot afford him the means of demonstrating the existence of the Trinity, (2) holds that, although rational explanations could be given in terms of proof of God’s existence, one cannot come to the knowledge of the truth of the existence of the Trinity by reason alone, and (3) concludes that, although we cannot prove the doctrine of the existence of the Trinity through philosophical demonstration, we can, however, show that this doctrine and other doctrines known through the light of faith are not contradictory.
Źródło:
Studia Gilsoniana; 2020, 9, 1; 167-188
2300-0066
Pojawia się w:
Studia Gilsoniana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Process Variables on Friction Stirred Microstructure and Surface Hardness of AZ31 Magnesium Alloy
Autorzy:
Kim, Jae-Yeon
Hwang, Jung-Woo
Lee, Seung-Mi
Hyun, Chang-Young
Park, Ik-Keun
Byeon, Jai-Won
Powiązania:
https://bibliotekanauki.pl/articles/355106.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
friction stir process
AZ31 alloy
diamond particle
process variable
grain size
Opis:
Effects of various friction stir processing (FSP) variables on the microstructural evolution and microhardness of the AZ31 magnesium alloy were investigated. The processing variables include rotational and travelling speed of the tool, kind of secondphase (i.e., diamond, Al2 O3 , and ZrO2 ) and groove depth (i.e., volume fraction of second phase). Grain size, distribution of second phase particle, grain texture, and microhardness were analyzed as a function of the FSP process variables. The FSPed AZ31 com-posites fabricated with a high heat input condition showed the better dispersion of particle without macro defect. For all composite specimens, the grain size decreased and the microhardness increased regardless of the grooved depth compared with that of the FSPed AZ31 without strengthening particle, respectively. For the AZ31/diamond composite having a grain size of about 1 μm, microhardness (i.e., about 108 Hv) was about two times higher than that of the matrix alloy (i.e., about 52 Hv). The effect of second phase particle on retardation of grain growth and resulting hardness increase was discussed.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 3; 907-911
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Exact Solutions and Conservation Laws of the Bogoyavlenskii Equation
Autorzy:
Inc, M.
Hashemi, M.
Isa Aliyu, A.
Powiązania:
https://bibliotekanauki.pl/articles/1029868.pdf
Data publikacji:
2018-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
02.30.Ik
02.30.Jr
47.35.Fg
Opis:
In this paper, the Lie symmetry analysis method is performed for a Bogoyavlenskii equation. The symmetries and exact invariant solutions for the equation are retrieved for the first time. The conservation laws of the Bogoyavlenskii equation are constructed using the conservation laws theorem introduced by Ibragimov.
Źródło:
Acta Physica Polonica A; 2018, 133, 5; 1133-1137
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Current status of intestinal parasitic infections among inhabitants of the Ghazni and Parwan provinces, Afghanistan
Autorzy:
Korzeniewski, Krzysztof
Chin Chung, Won
Augustynowicz, Alina
Lass, Anna
Jong IK, Kim
Powiązania:
https://bibliotekanauki.pl/articles/553070.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Przyjaciół Medycyny Rodzinnej i Lekarzy Rodzinnych
Tematy:
intestinal parasites
helminths
protozoa
Afghanistan.
Źródło:
Family Medicine & Primary Care Review; 2017, 1; 23-28
1734-3402
Pojawia się w:
Family Medicine & Primary Care Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stanimir Zvezdov, Bágaro-vizantijskite otnošenija pri car Petár I, IK Ogledalo, Sofija 2016, ss. 100
Autorzy:
Leszka, Mirosław J.
Powiązania:
https://bibliotekanauki.pl/articles/689039.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
-
Opis:
-
Źródło:
Przegląd Nauk Historycznych; 2017, 16, 1
1644-857X
2450-7660
Pojawia się w:
Przegląd Nauk Historycznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 44

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies