Showing 581 - 600 results of 1,022 for search '(((pina OR ming) OR spinge) OR (((spinga OR (rings OR ring)) OR (sspinea OR sspingea)) OR pin))', query time: 0.21s Refine Results
  1. 581
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  10. 590

    Synthesis of curvulone B and allahabadolactone, and the development of a diastereoselective Tsuji-Trost cyclisation by Wang, Kongchen

    Published 2017
    “…The first chapter describes the synthesis of curvulone B featuring a strategy of cross metathesis and oxa-Michael addition in the construction of the desired cis-THP ring. This strategy is one of the most effective tools in the synthesis of THP rings containing natural products. o-Chlorobenzyl ether was developed as a new protecting group for alcohols and proved to be a reliable protecting group under Lewis acidic condition. …”
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    Thesis
  11. 591

    On the total synthesis of complex alkaloids by Shennan, BDA

    Published 2024
    “…This strategy hinges upon a Michael addition followed by a Claisen rearrangement and ring-closing metathesis to establish three rings.…”
    Thesis
  12. 592

    An atomtronic experimental setup for engineering quantised circulations by Gan, Koon Siang

    Published 2022
    “…Persistent currents in ring structures play an important role in Atomtronics as it forms the basis of many interesting Atomtronic systems such as ring lattices and stacked rings. …”
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    Thesis-Doctor of Philosophy
  13. 593

    Fast depth-sensitive fluorescence measurements in turbid media using cone shell configuration by Ong, Yi Hong, Liu, Quan

    Published 2014
    “…Depth-sensitive fluorescence spectroscopy in a two-layered epithelial tissue phantom was demonstrated using a cone shell configuration implemented by an axicon lens and a fiber assembly including five rings of collection fibers. Each collection fiber ring was located at a different radial distance away from the center, for which fluorescence measurements from all rings showed a larger range of sensitivities to the top and bottom layers compared to the previously reported cone shell configuration. …”
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    Journal Article
  14. 594

    Stereoselective cyclisation cascades mediated by carbon electrophiles to access novel polycyclic scaffolds by Aynetdinova, DA

    Published 2023
    “…The cation-initiated polyene cyclisation to form carbocyclic rings, as well as heterocyclisation to form novel lactones, has been explored. …”
    Thesis
  15. 595

    Ladder Polyether Synthesis via Epoxide-Opening Cascades Using a Disappearing Directing Group by Simpson, Graham L, Heffron, Timothy P, Merino, Estíbaliz, Jamison, Timothy F

    Published 2024
    “…The combination of a trimethylsilyl group, a Brønsted base, a fluoride source, and a hydroxylic solvent enables the first construction of the tetrad of tetrahydropyran rings found in the majority of the ladder polyether natural products by way of a cascade of epoxide-opening events that emulates the final step of Nakanishi's proposed biosynthetic pathway. …”
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    Article
  16. 596

    Roles of the actin cytoskeleton in structuring the cortical endoplasmic reticulum. by Huang, Daniel Wenwei.

    Published 2011
    “…The ER is a dynamic structure that undergoes constant rearrangement through tubule branching, ring closure and tubule sliding. This rearrangement is thought to be dependent on actin cytoskeleton in yeast. …”
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    Thesis
  17. 597

    Cooperative field localization and excitation eigenmodes in disordered metamaterials by Papasimakis, Nikitas, Jenkins, Stewart D., Savo, Salvatore, Zheludev, Nikolay I., Ruostekoski, Janne

    Published 2019
    “…We investigate numerically and experimentally the near-field response of disordered arrays comprising asymmetrically split ring resonators that exhibit a strong cooperative response. …”
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    Journal Article
  18. 598

    Studies on the main group-based aromatic compounds : 1,4,2-Diazaborole and Germanium(0) species by Su, BoChao

    Published 2018
    “…In this thesis, a new family of aromatic five-membered B,N-heterocyclic rings, namely 1,4,2-diazaboroles, were introduced and fully characterized. …”
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    Thesis
  19. 599

    Asynchronous wood formation in young Acacia mangium planted in Malaysia by Ogata, Yoshiyuki, Nobuchi, Tadashi, Fujita, Minoru, Sahri, Mohammed Hamami

    Published 2002
    “…In general, tropical trees have less-distinct growth rings. Even if the trees have some concentric structures, there is little information on the timing of their formation. …”
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    Article
  20. 600

    Development of a counter-UAV system by Tang, Wen Yue

    Published 2022
    “…The parachute deployment system consists of a rotating ring that locks four petals in place. When deployed, the petals are forced outwards, releasing the parachute. …”
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    Final Year Project (FYP)