Showing 401 - 420 results of 770 for search '"silver"', query time: 0.04s Refine Results
  1. 401
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    The relationship between the countries' performances at the major sport events with their performance at the Olympic Games by Bahman Asgarı, Shahab Bahramı

    Published 2015-03-01
    “…The results showed that there is positive and significantly relationship between the number of medals of gold, silver, bronze and total medals won by countries at former Olympic Games, world championships, Asian and Pan-American Games with the number of Medals of gold, silver, bronze and total medals won at upcoming Olympic Games, However, there is not significantly relationship between the number of medals of gold, silver, bronze and total medals won at all-African Games with the number of medals of gold, silver, bronze and total medals won at Olympic Games.…”
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  3. 403

    The effect of iron and oxidizing flux addition on the fire assay of low grade pyritic refractory gold ores by Turan A., Yucel O.

    Published 2011-01-01
    “…Correlation between the quantity of additional iron and the recovery of gold-silver were investigated. Various quantities of Na2O2, as an oxidizing flux, were added to the smelting charge with iron additions, from which the highest gold and silver recoveries were obtained from previous experiments. …”
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  4. 404

    Influences of Different Preparation Conditions on Catalytic Activity of Ag2O-Co3O4/γ-Al2O3 for Hydrogenation of Coal Pyrolysis by Lei Zhang, Sha Xiang-ling, Lei Zhang, Wang Rui, Zhang Lixin, Shu Xinqian

    Published 2014-01-01
    “…The results showed the following: (1) at the same preparation condition, when silver loading was 8%, the Ag2O-Co3O4/γ-Al2O3 showed higher catalyst activity, (2) the catalyst activity had obviously improved when the cobalt loading was 8%, while it was weaker at loadings 5% and 10%, (3) the catalyst activity was influenced by different calcination temperatures of silver, but the influences were not marked, (4) the catalyst activity can be influenced by calcination time of silver, (5) different calcination times of cobalt can also influence the catalyst activity of Ag2O-Co3O4/γ-Al2O3, and (6) the best preparation conditions of the Ag2O-Co3O4/γ-Al2O3 were silver loading of 8%, calcination temperature of silver of 450°C, and calcinations time of silver of 4 h, while at the same time the cobalt loading was 8%, the calcination temperature of cobalt was 450°C, and calcination time of cobalt was 4 h.…”
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  5. 405
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    Preparation and Characterization of Nickel Ferrite-SiO2/Ag Core/Shell Nanocomposites by I. G. Blanco-Esqueda, G. Ortega-Zarzosa, J. R. Martínez, A. L. Guerrero

    Published 2015-01-01
    “…Magnetic composites with silver nanoparticles bonded to their surface were successfully prepared using a simple chemical method. …”
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    INVESTIGATION OF RATIONAL BUBBLES AND VOLATILITY SPILLOVERS IN COMMODITY MARKETS: EVIDENCES FROM PRECIOUS METALS by İsmail Çelik, Hilmi Tunahan Akkuş, Nazlıgül Gülcan

    Published 2019-12-01
    “…As a resultof the analysis, price bubbles were found in gold, silver and platinum, whereasno bubbles were found in palladium prices. …”
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  11. 411

    AG-Based Thick-Film Front Metallization of Silicon Solar Cells by M. Prudenziati, L. Moro, B. Morten, F. Sirotti, L. Sardi

    Published 1989-01-01
    “…The evolution of microstructure and electrical properties of silver-based thick-film metallizations of silicon solar cells prepared by infrared firing processes has been investigated. …”
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  12. 412

    OCCURRENCE AND DISTRIBUTION OF SOME POTATO DISEASES AFTER WINTER STORAGE PERIOD by Manuela Hermeziu, Lorena Adam, Diana Petre

    Published 2024-05-01
    “…Incidence of some tuber diseases like, dry rot, silver scurf, common scab and black scurf were monitored. …”
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  13. 413
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    Color Stability of Glass Ionomer Cement after Reinforced with Two Different Nanoparticles by Sharat Chandra Pani, Moath Tofik Aljammaz, Abdullah Mohammed Alrugi, Abdulaziz Mohammed Aljumaah, Yazeed Minahi Alkahtani, Abdulaziz AlKhuraif

    Published 2020-01-01
    “…This study aimed to compare the staining characteristics of a commercially available restorative glass ionomer cement to a formulation reinforced by the addition of carbon nanotubes and another formulation reinforced by the addition of silver nanoparticles to the powder of the same cement. …”
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  15. 415

    Un service de table en bronze et argent soigneusement rangé dans une cave à Reims/Durocortorum by Michaël Brunet, Fabienne Médard, Magalie Cavé, Stéphane Sindonino

    Published 2022-11-01
    “…With the exception of the four solid silver spoons, the rest are bronze dishes, either completely or partially coated with silver leaf, sometimes only the upper portion of the vessel. …”
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    Green Nanoparticles for Mosquito Control by Namita Soni, Soam Prakash

    Published 2014-01-01
    “…Here, we have used the green method for synthesis of silver and gold nanoparticles. In the present study the silver (Ag) and gold (Au) nanoparticles (NPs) were synthesized by using the aqueous bark extract of Indian spice dalchini (Cinnamomum zeylanicum) (C. zyelanicum or C. verum J. …”
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  19. 419

    Does Indian Commodity Futures Markets Exhibit Price Discovery? An Empirical Analysis by Upananda Pani, Ştefan Cristian Gherghina, Mário Nuno Mata, Joaquim António Ferrão, Pedro Neves Mata

    Published 2022-01-01
    “…The Granger causality test results show bidirectional causality between the spot and futures returns for gold, silver, aluminum, lead, nickel, and zinc. The Johansen cointegration test shows that spot and futures prices are in the long-run equilibrium path for silver, aluminum, lead, nickel, zinc, crude oil, and natural gas. …”
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  20. 420