Showing 6,141 - 6,160 results of 7,249 for search '"metals"', query time: 0.08s Refine Results
  1. 6141

    Spectroscopic Study on the Species and Color Differences of Gem-Quality Red Garnets from Malawi by Ming Li

    Published 2022-01-01
    “…They both contained the transition metal ions Fe2+, Mn2+, Fe3+, and Cr3+, with Fe2+ and Mn2+ occupying crystal site A and Fe3+ and Cr3+ occupying crystal site B. …”
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  2. 6142

    RESEARCH ON SIZE EFFECT ON FRACTURE TOUGHNESS OF PIPELINE STEEL by ZHEN Ying, YI HaiJiao, CAO YuGuang, ZHANG ShiHua, SHI YongJin

    Published 2019-01-01
    “…It is of both scientific and engineering significance to carry out a thorough study on its size effect.At present,the research on size effect of fracture toughness of metal materials is mainly focused on the linear elastic fracture parameter stress intensity factor K,and mostly only the influence of specimen thickness is considered. …”
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  3. 6143

    An ultra-wideband thin metamaterial linear cross-polarization conversion by Pegah Nochian, Zahra Atlasbaf

    Published 2025-01-01
    “…The CPC consists of two concentric deformed rings on a dielectric substrate backed by a metallic surface. It demonstrates co-polarization and cross-polarization reflection coefficients below − 11 and above − 1.1 dB, respectively, over a wide frequency range of 8.75–17.75 GHz, achieving a 68% bandwidth. …”
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  4. 6144

    Autenticitatea și simulacrele ei în noile contexte culturale, politice și economice by Ștefan Firică

    Published 2017-12-01
    “…Charles Guignon transferred the concept of identity from the “high” territories of elite culture to the “lower” field of pop-culture, from self-help literature and media to punk rock and heavy metal. Somogy Varga followed its trace from the first self-help manual (in mid-19th c.) to the consumerism and counter-culture of the latest decades. …”
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  5. 6145
  6. 6146

    INTERFERÊNCIA DOS PROCESSOS DE MANUTENÇÃO DA FACE DE UM CABEÇOTE DE MOTOR AUTOMOTIVO EM SUA QUALIDADE SUPERFICIAL by Lucas Benini, Guilherme Cola Ramos Rossi, Charles Luiz da Silva

    Published 2019-08-01
    “…Verificou-se que a presença de metal de adição não afeta o acabamento da superfície usinada e que as regiões que receberam preenchimento apresentaram maior ductilidade e defeitos de porosidade. …”
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  7. 6147

    Mechanical and magnetic properties of composite materials with polymer matrix by Grujić A., Talijan N., Stojanović D., Stajić-Trošić J., Burzić Z., Balanović Lj., Aleksić R.

    Published 2010-01-01
    “…Many of modern technologies require materials with unusual combinations of properties that cannot be met by the conventional metal alloys, ceramics, and polymeric materials. …”
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  8. 6148

    Correlation effects in magic-angle twisted bilayer graphene: An auxiliary-field quantum Monte Carlo study by Zhi-Yu Xiao, Shiwei Zhang

    Published 2025-01-01
    “…Our calculations identify correlated metal states and their competition with the insulating Kramers intervalley-coherent state at both half-filling and charge neutrality. …”
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  9. 6149

    Improving the Attractiveness of Waste Steel Cans for Steel Mills by Removing Tin by B.J. Gajda, J. Reterski

    Published 2024-12-01
    “…A considerable proportion of these materials are steel cans made of tin-coated steel sheets. Tin, being a metal with broad applications and limited natural resources, should be recovered from waste materials. …”
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  10. 6150

    Effects of the manufacturing process on fracture behaviour of cast TiAl intermetallic alloys by A. Brotzu, F. Felli, D. Pilone

    Published 2013-12-01
    “…Tests carried out on several samples characterised by different alloy compositions highlighted that solidification shrinkage and solid metal contraction during cooling produce the development of relevant residual stresses that are sufficient to fracture the castings during cooling or to produce a delayed fracture. …”
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  11. 6151

    Nanoparticles in thermotropic and lyotropic liquid crystals by Chung-Hao Chen, Ingo Dierking

    Published 2025-01-01
    “…Several categories of nanomaterials such as metallic, carbon allotropes, nanorod and nanowires will be introduced, together with particles of additional functionality, like ferroelectricity, semiconductors and quantum dots. …”
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  12. 6152

    Decarburization of ferrochrome and high alloy steels with optimized gas and slag phases towards improved Cr retention by Wang H., Nzotta M.M., Teng L., Seetharaman S.

    Published 2013-01-01
    “…Chromium is a high value metal and the retention of the same during the refining of high carbon ferrochrome as well as high alloy steel has significant economic and environmental impacts. …”
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  13. 6153

    The stock market's reaction to the mandatory disclosure of ESG information by Mateus Del Col Lopes, Michele Nascimento Jucá

    Published 2025-01-01
    “…Methodology: This analysis is carried out through an event study, which refers to the publication of the Reference Form (FRE) of companies in the metal and mining sector - that are environmentally sensitive. …”
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  14. 6154

    Characterization and tensile fractography of nano ZrO2 reinforced Copper-Zinc alloy composites by Prasad H. Nayak, H. K. Srinivas, Madeva Nagaral, V. Auradi

    Published 2019-04-01
    “…Nano particulates fortified metal lattice composites are finding extensive variety of utilizations in car and sports hardware fabricating businesses. …”
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  15. 6155

    Improve Efficiency of Photovoltaic/Thermal Systems using Porous Materials: An Experimental Study by H. Farzan

    Published 2025-07-01
    “…This study analyzes a new, affordable method to improve convection in PV/Ts and increase their thermal/electrical efficiency. The use of metallic porous materials with high thermal conductivity is a robust approach to increase the efficiency of PV/Ts by accelerating the cooling rate of PVs. …”
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  16. 6156

    Forensic Examination of Money and Securities by V. S. Sezonov

    Published 2020-09-01
    “…It is noted that the examination of metal money counterfeit requires other examination. …”
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  17. 6157
  18. 6158

    Reliable SRAM using NAND‐NOR Gate in beyond‐CMOS QCA technology by Marshal Raj, Lakshminarayanan Gopalakrishnan, Seok‐Bum Ko

    Published 2021-05-01
    “…Abstract The rise in complementary metal‐oxide semiconductor (CMOS) limitations has urged the industry to shift its focus towards beyond‐CMOS technologies to stay in race with Moore’s law. …”
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  19. 6159

    Methylene Blue Dye Photodegradation during Synthesis and Characterization of WO3 Nanoparticles by Raviteja Surakasi, null Alimuddin, Yenda Srinivasa Rao, Ashitha K. Sanuj, Pravin P. Patil, A. Jayaganthan, Ramana Hechhu

    Published 2022-01-01
    “…FTIR confirms the presence of metal oxides. The pellucid absorption extremity in the UV-Vis region corresponds to the rudimentary absorption of the WO3 semiconductor. …”
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  20. 6160

    Trends in the applications of terahertz radiation in oral oncology treatments by Marwan Al-Raeei

    Published 2024-06-01
    “…Their capacity to pass through non-metallic substances and produce detailed images of objects not visible to the naked eye is highly valuable in industries like pharmaceuticals, telecommunications, and healthcare. …”
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