Mostrando 2,501 - 2,520 Resultados de 109,865 Para Buscar '"Ringe"', tiempo de consulta: 0.31s Limitar resultados
  1. 2501
  2. 2502
  3. 2503
    “…Penile strangulation following placement of metallic rings is a rare clinical entity that needs urgent attention to avoid potentially severe clinical consequences. …”
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  4. 2504
    “…We compare the performance and function of the new mixed electrolyte system with a variety of ionic liquid/cosolvent electrolyte systems developed in previous studies. The ring-chain synergy takes advantage of the availability of both high permittivities based on the ring-like components and low viscosities based on the chain-like components in the mixed electrolyte system and causes the electrolyte to exhibit a good overall performance in safety, ion transport and compatibility with electrodes.…”
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  5. 2505
    “…We study theoretically the electronic transport and quantum fluctuations in single-molecule systems using thiophene rings as integrated elementary functions, as well as the dependence of these properties with the increase of the coupled rings, i.e., as a quantum wire. …”
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  6. 2506
    “…This paper presents a plasmon-induced transparency (PIT) using an easy-fabricating metamaterial composed of three pieces of metallic arc-rings on top of a dielectric substrate. The transmission of the transparent peak of 1.32 THz reaches approximately 93%. …”
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  7. 2507
  8. 2508
    “…Here, we find a way to obtain concentric circles, a dendritic pattern, and a lattice pattern by pinning the edge of droplets using the coffee ring effect; only aggregates of crystallites are seen in the absence of pinning. …”
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  9. 2509
    “…The electronic states in GaAs-Al(x)Ga(1−x)As elliptically-shaped quantum rings are theoretically investigated through the numerical solution of the effective mass band equation via the finite element method. …”
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  10. 2510
    “…Ring vaccinations create a zone of immune contacts around a case to prevent further disease transmission and have been successfully employed in the eradication of smallpox and the control of other infections. …”
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  11. 2511
    “…[Image: see text] The topology of twisted molecular rings is characterized by the linking number, which is equal to the sum of the twist—a local property of the molecular frame—and the writhe—a global parameter, which represents the bending of the molecular ring. …”
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  12. 2512
    “…Our successful work for the synthesis of cyclopropanated vinblastine and its derivatives by the Simmons–Smith reaction was followed to build up further three-membered rings into the 14,15-position of the vindoline part of the dimer alkaloid. …”
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  13. 2513
    “…The cationic ring-opening polymerization reaction of tetrahydrofuran at 20 °C was catalyzed by H(3)PW(12)O(40)·13H(2)O as solid acid catalyst. …”
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  14. 2514
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  16. 2516
    “…The molecular stability of the hemiaminal intermediates results from both the 1,2,4-triazole moiety and electron withdrawing substituents on the phenyl ring, so no further stabilisation by intramolecular interaction is required. …”
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  17. 2517
    “…Based on our initial design, we synthesized two series of coumarin ring-opening derivatives by the reactions of hydrolysis and methylation. …”
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  18. 2518
  19. 2519
    por Zhong, Yongliang, Tong, Rong
    Publicado 2018
    “…Biodegradable poly(α-hydroxy acids) can be synthesized by means of ring-opening polymerization (ROP) of O-carboxyanhydrides (OCAs). …”
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  20. 2520
    por Schönke, Johannes, Fried, Eliot
    Publicado 2019
    “…Here, we present “Möbius kaleidocycles,” a previously undiscovered class of single-internal degree of freedom ring linkages containing nontrivial examples of spatially underconstrained mechanisms. …”
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