Experimental investigation of impact response of composite plates/panels by Gan, Jia Li

“…Damage patterns in the acrylic sheet include radial and ring cracks and, together with slight delamination at the interface, which may cause peeling-off of acrylic material from the sandwich plate. …”
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Indefinite metamaterials for optical applications by Bisht, Ankit

“…Using full-wave Finite-difference time-domain (FDTD) simulations with diffraction limited trimer, quadrumer and ringed objects etched on thin perfect electric conductor (PEC) films, we show that the hyperlens model can achieve magnification factors of up to 10X in the far-field (~4.5λ from object’s surface) under a light source with a wavelength of 1 μm, with successful resolution down to 220 nm (~λ/5). …”
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Two kinds of phase transition in photonic systems with application to optical isolation by Zhou, Xin

“…We study three representative designs: (i) a waveguide array implementing a nonlinear 1D Su-Schrieffer-Heeger model, (ii) a waveguide array implementing a nonlinear 2D Haldane model, and (iii) a 2D lattice of coupled-ring waveguides. In the first two cases, we find a correspondence between the topological transition of the underlying linear lattice and the power threshold of the transmittance, and show that the transmission behavior is attributable to the emergence of a self-induced topological soliton. …”
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Controlling selectivity in the reductive activation of CO2 by mixed sandwich uranium(iii) complexes by Tsoureas, N, Castro, L, Kilpatrick, A, Cloke, FGN, Maron, L

“…The nature of the R group on the cyclopentadienyl ring in the former has a significant effect on the outcome of CO2 activation: when R = Me, the products are the bridging oxo complex {U[η8-C8H6(1,4-SiMe3)2](η5-CpMe5)}2(μ-O) and the bridging oxalate complex {U[η8-C8H6(1,4-SiMe3)2](η5-CpMe5)}2(μ-η2:η2-C2O4); for R = Et or iPr, bridging carbonate {U[η8-C8H6(1,4-SiMe3)2](η5-CpMe4R)}2(μ-η1:η2-CO3) and bridging oxalate complexes {U[η8-C8H6(1,4-SiMe3)2](η5-CpMe4R)}2(μ-η2:η2-C2O4) are formed in both cases; and when R = tBu the sole product is the bridging carbonate complex {U[η8-C8H6(1,4-SiMe3)2](η5-CpMe4tBu)}2(μ-η1:η2-CO3). …”

Distinct Circle of Willis anatomical configurations in healthy preterm born adults: a 3D time-of-flight magnetic resonance angiography study by Greggio, J, Malamateniou, C, Baruteau, KP, Reyes-Aldasoro, CC, Huckstep, OJ, Francis, JM, Williamson, W, Leeson, P, Lewandowski, AJ, Lapidaire, W

“…This study aims to explore potential differences in the Circle of Willis (CoW), a key arterial ring that perfuses the brain, of healthy adults born preterm. …”

Design and Synthesis of Stimuli-Responsive Polymers with Programmable Cleavability by Zafar, Hadiqa

“…The fourth chapter thus provides detailed background on the current plastic waste outlook, vinyl polymers and their synthesis, radical ring-opening polymerization, and current approaches to cleavable comonomers and the end-of-life options they offer commodity polymers. …”
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Structural analysis and insights into the glycon specificity of the rice GH1 Os7BGlu26 β-D-mannosidase by Robinson, Robert Charles, Tankrathok, Anupong, Iglesias-Fernández, Javier, Luang, Sukanya, Kimura, Atsuo, Rovira, Carme, Hrmova, Maria, Ketudat Cairns, James R.

“…Docking of the 1S3, 1S5, 2SO and 3S1 pyranose-ring conformations of 4NPMan and 4NPGlc substrates into the active site of Os7BGlu26 indicated that the lowest energies were in the 1S5 and 1S3 skew-boat conformations. …”
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100 THz optical switching with plasmonic metamaterial by Venkatram, Nalla, Stefano, Vezzol, João, Valente, Sun, Handong, Nikolay, Zheludev

“…In this paper we evaluate the effect of plasmonic finite response time on the coherent perfect absorption process for a plasmonic metamaterial absorber, based on asymmetric split ring resonators. We study the coherent modulation of the total energy as a function of the pulse duration, down to 6 fs. …”
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Interplay of Transition Metals and Noncovalent Interactions in C–H Activation Catalysis by Vennelakanti, Vyshnavi

“…These enzymes catalyze a variety of reactions including C–H halogenation, hydroxylation, epoxidation, and ring closures, several of which are mediated with the help of noncovalent interactions such as hydrogen bonds (HBs). …”
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Circularly polarized antennas and phased arrays for 5G applications by Hu, Yiyun

“…This unit is improved based on the off-center fed folded long dipole by introducing the half-ring structure, which could make the unit more suitable for beam scanning arrays. …”
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Early detection of reduced artemisinin susceptibility in plasmodium falciparum using novel phenotypic indicators by Xiong, Aoli

“…Currently the most widely used methods for the detection of artemisinin resistance include parasites clearance rate measurements, the ring-stage survival assay (RSA) and DNA based approaches to detect mutations in the K13-propeller gene. …”
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Design and investigation of block copolymers for dispersion of carbon nanotubes in polymer matrices by Liu, Chengyin

“…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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Structure and functions of a metallo-beta-lactamase- like hypothetical protein bleg1_2437 from alkali-tolerant soil bacterium Bacillus lehensis G1 by Tan, Soo Huei

“…However, the emergence of antibiotic resistance mechanism among pathogenic bacteria has downsized the efficacy of antibiotics via the production metallo-β-lactamase (MBL) which enables pathogens to destroy the β- lactam ring of β-lactam antibiotics. Although MBL is not ubiquitously found in all pathogenic bacteria, its presence is a public health concern. …”
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Synthesis of epoxidized poly(ester carbonate)-b-polyimide-b-poly(ester carbonate) : reactive single-walled carbon nanotube dispersants enable synergistic reinforcement around multi... by Liu, Bo, Liu, Chengyin, De Luca, Hugo G., Raman Pillai, Suresh Kumar, Anthony, David B., Li, Jianghua, Bismarck, Alexander, Shaffer, Milo S. P., Chan-Park, Mary Bee Eng

“…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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Solution-processed lead halide perovskite single crystal scintillators by Xie, Aozhen

“…Simple linear alkyl and small bulky ring-containing cations tend to introduce (100) type which typically exhibits narrow emission and more likely to show negative thermal quenching behavior (stronger emission upon higher temperature). …”
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Discrete geodesic graphs by Fang, Zheng

“…The computational domain shrinks to a local patch as the basis function decays to zero outside one-ring neighbors of the patch. I introduce an optimization scheme to solve the localized harmonic B-spline equation and compute the discrete Green's function quickly, which is a better simulation of ground truth on synthetic models according to experimental results. …”
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Structure and interaction of telomeric and telomerase RNA G-quadruplexes. by Martadinata, Herry.

“…Our studies show that the dissociation constant (Kd) of DNA-RNA hybrid G-quadruplexes is virtually independent on the sequences of DNA but instead depends on the number of G-repeats of the DNA and RNA sequences. The sugar-ring chemistry (deoxyribose vs. ribose) was found to affect the Kd of inter-molecular G-quadruplex (DNA-DNA vs. …”
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Investigating the EM performance of building materials for mid-band 5G in urban built environment: an exploratory study by Ng, Sean Jake Peng

“…The thesis is concluded with the investigation of material loading on an evolved antecedent hexagonal-stubbed complementary split-ring resonator (CSRR)-loaded electrically small antenna (ESA) designed to cover the 3.5 GHz 5G frequency band. …”
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Investigations into high resolution imaging of the aqueous outflow system and cornea by Hong, Jesmond Xun Jie

“…The imaging probe is an assembly of a circular ring array of four light emitting diodes tilted at an angle and a micro color charged coupled device camera. …”
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