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cheen » chien (Expand Search), chuen (Expand Search), chern (Expand Search)
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cher » chern (Expand Search), her (Expand Search), chew (Expand Search)
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2721
Design and investigation of block copolymers for dispersion of carbon nanotubes in polymer matrices
Published 2018“…To further improve the tensile properties of the SWNTs/epoxy nanocomposites, we fabricated another series of PI-derived block copolymers via ring-opening polymerization initiated from hydroxyl-terminated polyimide of lactide and allyl-bearing 2-methyl-2-(allyloxycarbonyl)propylene carbonate) (MAC) to produce PLA-b-PI-b-PLA (TB1) and PMAC-b-PI-b-PMAC (TB2) which are polyester and poly(ester-carbonate)-derived, respectively. …”
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Thesis -
2722
Synthesis of heavy cyanide analogs for the design of novel Prussian blue analogs
Published 2023“…In order to provide illustrative points of comparison, analogous metal complexes bearing various strong-field ligands are also synthesized and analyzed using the same approach.…”
Thesis -
2723
Electrospun carbon-silica composite nanofibers for selective removal of oil and water
Published 2016“…The microstructure of CNF is turbostratic with the carbon atomic sheets stacked together randomly. Despite non-crystalline structure, the CNFs could withstand a temperature as high as 500°C. …”
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Thesis -
2724
Bacteria-mediated anti-cancer therapy
Published 2019“…However, IB significantly inhibited the growth of the tumors and improved the survival rate of immunocompetent CT26 tumor-bearing mice. Histological analysis showed that IB increased the necrotic area in HCT116 tumors. …”
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Thesis -
2725
Synthesis of epoxidized poly(ester carbonate)-b-polyimide-b-poly(ester carbonate) : reactive single-walled carbon nanotube dispersants enable synergistic reinforcement around multi...
Published 2020“…Herein, PI-derived block copolymers are synthesized via ring-opening copolymerization of lactide (LA) (a control monomer) and allyl-bearing 2-methyl-2-(allyloxycarbonyl)-propylene carbonate (MAC) from the OH-terminal ends of the PI block to produce PLA-PI-PLA (TB1, a control) and PMAC-PI-PMAC (TB2). …”
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Journal Article -
2726
Modelling and characterization of membrane fouling in osmotically-driven membrane processes (ODMPs)
Published 2021“…Performance of neural networks bears strong relationship with learning rate, number of hidden layers and number of nodes in hidden layer. …”
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Thesis-Doctor of Philosophy -
2727
新加坡华人对中国的贡献 :新加坡城市规划之父刘太格个案研究 = Contributions of Singaporean Chinese to China : a case study on Singapore’s father of city planning Liu Thai Ker...
Published 2019“…However, in the fields of urban planning and development which bears the origins to the establishment of diplomatic relations between the two countries was left unexplored by the academic circles. …”
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Final Year Project (FYP) -
2728
Topochemical manipulation of some complex transition metal oxides
Published 2016“…This phase is composed of sheets of apex-linked Ni<sup>1+</sup>O<sub>4</sub> and Ru<sup>2+</sup>O<sub>4</sub> squares in a checkerboard ordered arrangement. …”
Thesis -
2729
Fabrication and characterization of graphene and carbon nanotube reinforced bioceramic nanocomposites
Published 2020“…Bioceramics play an important role in the replacement and regeneration of human tissues, but their intrinsic brittleness and low wear resistance make the monolithic bioceramics still problematic for load-bearing applications. The two dimensional (2D) graphene and one dimensional (1D) carbon nanotube (CNT), as the secondary strong and tough biocompatible nanofillers, are popular nanocarbons to reinforce bioceramics. …”
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Thesis-Doctor of Philosophy -
2730
Engineered terahertz emission from spintronic heterostructures: amplitude, phase and chirality
Published 2023“…To summarize, the thesis aims to contribute to the synergies of spintronics and photonics for advanced applications in developing scalable devices bearing low-cost fabrication with on-chip compatibility.…”
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Thesis-Doctor of Philosophy -
2731
Amino-functionalised β-diketiminate ligands (N-nacnacs): Synthesis and coordination chemistry with Main Group elements
Published 2018“…The establishment of a library of germylenes and stannylenes bearing different N-bound aromatic substituents with varying degrees of steric bulk allows for a systematic study of the steric effects of the flanking aryl groups on the overall molecular metrics of these complexes. …”
Thesis -
2732
Stability improvement and control optimization of isolated two-stage AC-DC-DC converter systems
Published 2020“…The analysis results offer instructive implications to fine-tune the design rules of the DAB converters. Bearing the mind that the impedance model of the DAB converter is closely related to the modulation schemes, the impacts of three typical modulation methods on the DAB impedances are analyzed and compared. …”
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Thesis-Doctor of Philosophy -
2733
Topochemical fluorination of some Ruddlesden-Popper phases
Published 2017“…The introduction of a cooperative octahedral tilt around the crystallographic z-axis leads to a local breaking of the inversion symmetry of the host lattice on fluorination, although the global inversion symmetry of the lattice is retained due to an alternation in the z-tilt direction in adjacent perovskite sheets.</p> <p>The substitution of Sr<sup>2+</sup> with Ca<sup>2+</sup> cations in YSr<sub>2</sub>Mn<sub>2</sub>O<sub>7</sub> led to an increasing distortion of the metal-oxide framework, resulting in the formation of an orthorhombic symmetry in space group <em>Pnnm</em> adopted by YSr<sub>0.5</sub>Ca<sub>1.5</sub>Mn<sub>2</sub>O<sub>7</sub>. …”
Thesis