Mostrando 3,581 - 3,600 Resultados de 99,129 Para Buscar '" metal"', tiempo de consulta: 0.36s Limitar resultados
  1. 3581
    “…We present first-principles density-functional calculations for the structural, electronic, and magnetic properties of substitutional 3d transition metal (TM) impurities in two-dimensional black and blue phosphorenes. …”
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  2. 3582
    “…STATEMENT OF PROBLEM: In recent years, direct metal laser sintered (DMLS) metal-ceramic-based fixed partial denture prostheses have been used as an alternative to conventional metal-ceramic fixed partial denture prostheses. …”
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  3. 3583
    por Lee, Soo Hyun, Kim, Sang Hun, Yu, Jae Su
    Publicado 2016
    “…Metal-semiconductor-metal near-ultraviolet (NUV) photodetectors (PDs) based on zinc oxide (ZnO) nanorods (NRs), operating at λ ~ 380 nm, were fabricated using conventional photolithography and hydrothermal synthesis processes. …”
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  4. 3584
    por Leung, Patrick, Kudrna, James C.
    Publicado 2016
    “…The development of pseudotumors is not uncommon with metal-on-metal total hip arthroplasty. Pseudotumors that dissect into the retroperitoneal space can cause symptoms of nerve compression. …”
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  5. 3585
    “…A new class of dual metal and N doped carbon catalysts with well‐defined porous structure derived from metal–organic frameworks (MOFs) has been developed as a high‐performance electrocatalyst for oxygen reduction reaction (ORR). …”
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  6. 3586
  7. 3587
    “…AIMS: To determine ten-year failure rates following 36 mm metal-on-metal (MoM) Pinnacle total hip arthroplasty (THA), and identify predictors of failure. …”
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  8. 3588
    “…In this paper, a characterization of an AlSiMg alloy processed by direct metal laser sintering (DMLS) is presented, from the analysis of the starting powders, in terms of size, morphology and chemical composition, through to the evaluation of mechanical and microstructural properties of specimens built along different orientations parallel and perpendicular to the powder deposition plane. …”
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  9. 3589
    “…The two recombinant proteins revealed to be very similar in most of their metal binding features. They lacked a clear metal-binding preference for any of the three metal ions assayed—which, to this degree, is clearly unprecedented in the world of Gastropoda MTs. …”
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  10. 3590
  11. 3591
  12. 3592
    “…PURPOSE: The aim of the present study was to record the metal-ceramic bond strength of a feldspathic dental porcelain and a Co-Cr alloy, using the Direct Metal Laser Sintering technique (DMLS) for the fabrication of metal substrates. …”
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  13. 3593
  14. 3594
    “…In article number 1801370, Soon‐Yong Kwon and co‐workers investigate single‐crystalline WTe2 nanobelts from a eutectic metal alloy, which can be a prominent interconnect candidate because of their superior electrical performance and robustness. …”
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  15. 3595
    “…Plant metal tolerance proteins (MTPs) comprise a family of membrane divalent cation transporters that play essential roles in plant mineral nutrition maintenance and heavy metal stresses resistance. …”
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  16. 3596
    “…Each main group was subdivided into two subgroups (n = 5) depending upon the type of metal primer used for metal treatment. All specimens were bonded with resin cements. …”
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  17. 3597
    por Tosato, Marianna, Di Marco, Valerio
    Publicado 2019
    “…Among these compounds, approximately 250 have possible or established metal-chelating properties towards Cu(II), Cu(I), Fe(III), Fe(II), Mn(II), and Zn(II), which are considered to be involved in metal dyshomeostasis during PD. …”
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  18. 3598
    “…This study employs the deposition of an electron transport layer of C(60) and an Ag electrode on CH(3)NH(3)PbBr(3) perovskite crystals to complete a photodetector structure, which exhibits a metal–semiconductor–metal (MSM) type structure. First, CH(3)NH(3)PbBr(3) perovskite crystals were grown by inverse temperature crystallization (ITC) in a pre-heated circulator oven. …”
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  19. 3599
    “…OBJECTIVE: To retrospectively compare the mid-term outcomes of uncemented or cemented total hip arthroplasty (THA) revision for prior primary metal-on-metal (MoM) THA failure. METHODS: Data from 278 patients (278 hips) who underwent uncemented THA (UTHA) or cemented THA (CTHA) for prior primary MoM-THA failure from 2006 to 2016 were retrospectively analysed. …”
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  20. 3600
    por Bahmani, Ahmad, Kim, Woo-Jin
    Publicado 2020
    “…In this study, we tried to review the articles related to DSR and especially the high-ratio DSR (HRDSR) technique that is associated with a high speed ratio between the upper and lower rolls (≥2) and compare the change in microstructure and mechanical properties after HRDSR with the results obtained by using other severe plastic deformation (SPD) techniques to see the potential of the HRDSR technique in enhancing the mechanical properties of metals and metal matrix composites. The reviewed results show that HRDSR is an important technique that can effectively refine the grains to micro or nano sizes and uniformly disperse the particles or reinforcement throughout the matrix, which helps extensively in improving ambient and superplastic mechanical properties of various metals and alloys.…”
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