Search Results - Rings, D. M.~
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The influence of inter-ring pressures on piston-ring/liner tribological conjunction
Published 2012Get full text
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A 2D hydrodynamic solver of the Reynolds equation for the piston ring-liner conjunction
Published 2016Get full text
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3-D printed bandpass filters with coupled vertically extruded split ring resonators
Published 2019Subjects: Get full text
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The influence of piston ring geometry and topography on friction
Published 2013Get full text
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Nonlinear ring waves in a two-layer fluid
Published 2016“…Surface and interfacial weakly-nonlinear ring waves in a two-layer fluid are modelled numerically, within the framework of the recently derived 2+1-dimensional cKdV-type equation. …”
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Influence of boundary conditions on starvation of piston ring conjunction
Published 2017“…This is also true of piston compression ring as well. A 2D hydrodynamic solver using Reynolds equation is to analyse the differences between predicted conditions with a flooded inlet and that arising from a more realistic determined zero-reverse boundary condition for lubricant flow post inlet wedge stagnation point. …”
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Multilayer aperture ring frequency selective surface modelling
Published 2005“…This paper describes the design ofa low loss quasi-optical beam splitter, which is required to provide efficient diplexing of the bands 316.5-325.5 GHz and 349.5-358.5 GHz with at least 20dB ofisolation. …”
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Transient behaviour of a 3-phase slip-ring induction motor with external impedance in the rotor circuit
Published 1979Get full text
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Fully quantum-mechanical model of a SQUID ring coupled to an electromagnetic field
Published 2001Get full text
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Pillared MOFs: structure and ring opening polymerization of cyclic esters
Published 2022“…Similar solvothermal reactions of Co(NO3)·6H2O, Mn(NO3)·4H2O and Cd(NO3)·4H2O with 5-aminoisophthalate and the potential linkers 4,4′-bipy, 2-di(4-pyridyl)ethylene (DPE), and 4,4′-azopy afforded the porous 3-D structures {[Co2(NO3)2(5-AIP)(4,4′-bipy)2]·2EtOH}n (3·2EtOH), {[Co(5-AIP)(DPE)]·2DMF}n (4·2DMF), {[Co(5-AIP)(4,4′-azopy)]·2DMA}n (5·2DMA), {[Mn(5-AIP)(4,4′-bipy)]·2DMA}n (6·2DMA), {[Mn(5-AIP)(DPE)]·6DMF}n (7·6DMF), {[Mn(5-AIP)(4,4′-azopy)]·2.5DMF}n (8·2.5DMF), the previously reported {[Cd(5-AIP)(4,4′-bipy)]·3DMF}n (9·3DMF), {[Cd(5-AIP)(DPE)]·DMF}n (10), and {Cd(5-AIP)(4,4′-azopy)(DMF)}n (11), with structures 4–10 bearing the same network topologies with metal atoms and 5-AIP ligands in sheets, bipy ligands acting as pillars, and solvent molecules of crystallisation located around the bipy ligands. …”
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Implementing the Orwell ATM protocol over an optical fibre ring
Published 1993Get full text
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Mathematical modelling of nonlinear ring waves in a stratified fluid
Published 2015“…We solve the derived 2+1-dimensional cKdV-type equation numerically using a finite-difference scheme. …”
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Nonlinear multilevel dynamics of a coupled SQUID ring-resonator system in the hysteretic regime
Published 1999Get full text
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On the Hamming distance of linear codes over a finite chain ring
Published 2000“…Let R be a finite chain ring (e.g. a Galois ring), K its residue field and C a linear code over R. …”
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Strong Gröbner bases for polynomials over a principal ideal ring
Published 2001“…Gröbner bases have been generalised to polynomials over a commutative ring A in several ways. Here we focus on strong Gröbner bases, also known as D-bases. …”
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A multi-physics, multi-scale investigation of the piston ring pack
Published 2017“…It is essential for the automotive industry to improve efficiency and mitigate frictional losses in IC engines. About 20-25% of these frictional losses arise as a result of the piston ring pack-liner assembly. …”
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Novel synthetic routes towards polycyclic alkaloids and tetracycline ring systems
Published 2008“…Also described in this thesis is the first asymmetric synthesis of the dodecahydrobenz[α]indolo[3,2-h]quinolizine ring system (E), a common sub-structure of several bioactive indole alkaloids. …”
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Adiabatic modulation of a superconducting quantum interference device (SQUID) ring by an electromagnetic field
Published 1998Get full text
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Energy downconversion between classical electromagnetic fields via a quantum mechanical SQUID ring
Published 2005Get full text
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Investigation of reciprocating conformal contact of piston skirt and ring-pack to cylinder liner under transient condition
Published 2003Get full text
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Quantum statistics and entanglement of two electromagnetic field modes coupled via a mesoscopic SQUID ring
Published 2001Get full text
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Pinch resonances in a radio-frequency-driven superconducting-quantum-interference-device ring-resonator system
Published 2001Get full text
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Long internal ring waves in a two-layer fluid with an upper-layer current
Published 2020“…We consider a two-layer fluid with a depth-dependent upper-layer current (e.g. a river inflow, an exchange flow in a strait, or a wind-generated current). …”
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Routes to chiral N-acyliminium ion precursors for the synthesis of optically active pure ring-fused pyrroloisoquinoline alkaloids.
Published 2003“…We recognised that a suitably substituted bicyclic lactam (A) could act as a precursor in an intramolecular N-acyliminium mediated cyclisation reaction in a stereoselective approach to the core of the erythrinane target ring system....cont'd…”
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Development of a dual Fries-Claisen rearrangement strategy
Published 2012“…This novel methodology was applied towards the synthesis of benzodifuran compounds (D). Our work was extended by developing, for the first time, a mixed Fries-Claisen rearrangement strategy which furnishes template (F), a key intermediate in the synthesis of pyranonaphthoquinones (G). …”
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Half mode corrugated substrate integrated waveguide (HM-CSIW) band-stop filter using hexagonal ring resonators
Published 2024“…A simulated insertion loss < 1 dB is shown for the passband of the HM-CSIW with a rejection > −30 dB for the stop-band at 26.5 to 33.5 GHz. …”
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Wideband half-elliptical ring slot array loaded leaky wave antenna on a half-mode corrugated substrate integrated waveguide
Published 2024“…This paper presents a leaky-wave antenna with elliptical ring slot array loaded on a half-mode corrugated substrate integrated waveguide (HM-CSIW) operating at 25 to 36.5 GHz. …”
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A d.c. magnetic metamaterial
Published 2008“…Applications for this metamaterial may include non-intrusive screening of weak d.c. magnetic fields.…”
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Ring opening polymerization of lactides and lactones by multimetallic alkyl zinc complexes derived from the acids Ph2C(X)CO2H (X = OH, NH2).
Published 2017“…The reaction of the dialkylzinc reagents R2Zn with the acids 2,2-Ph2C(X)(CO2H), where X ¼ NH2, OH, i.e. 2,20-diphenylglycine (dpgH) or benzilic acid (benzH2), in toluene at reflux temperature afforded the tetranuclear ring complexes [RZn(dpg)]4, where R ¼ Me (1), Et (2), 2-CF3C6H4 (3), and 2,4,6-F3C6H2 (4); complex 2 has been previously reported. …”
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Multimetallic lithium complexes derived from the acids Ph 2 C(X)CO 2 H (X=OH, NH 2 ): Synthesis, structure and ring opening polymerization of lactides and lactones
Published 2017“…Similar reaction of LiOPh afforded [Li8(PhO)4(dpg)4(MeCN)4] (5). Complexes 1 - 5 were screened for their potential as catalysts for ring opening polymerization (ROP) of ε-caprolactone (ε-CL), rac-lactide (rac-LA) and δ-valerolactone (δ-VL). …”
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3D-printed flat lens for microwave applications
Published 2015“…Measurement results show that the realised gain of the lens is 8 to 10 dB over the frequency band ranging from 12 to 18 GHz.…”
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Functional polyesters for drug delivery and 3D printing
Published 2016“…PCL and PLA films were cast as films and subsequently aminolysed using 1,6-hexamethylene diamine in aqueous media at pH = 11.5. …”
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3D vision assisted flexible robotic assembly of machine components
Published 2015“…However, the currently established vision-guided assembly systems use 2D vision, which is limited to three degrees of freedom. …”
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Atomic force microscopic measurement of a used cylinder liner for prediction of boundary friction
Published 2018“…Results are reported for the Top Dead Centre, Mid-stroke and Bottom Dead Centre locations. The measurements are subsequently used with 2D Reynolds Solution for a top compression ring-liner contact, where it is found that accurate localised predictions of generated friction and power loss can be made instead of the usual average value approach reported in literature.…”
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Mesoscopic structure features in synthetic graphite
Published 2018“…We suggest that a 7 member carbon ring leaves a cavity representing an arm-chair graphite edge contributing to the Raman spectra D peak.…”
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Design and fabrication of 3D-printed planar Fresnel zone plate lens
Published 2017“…These slides give the design principle about the 3D-printed planar Fresnel zone plate lens. CST was used for simulate the lens. …”
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Multiple-feature-based zero-watermarking for robust and discriminative copyright protection of DIBR 3D videos
Published 2022“…Existing approaches extract features of both 2D frames and depth maps via a single mechanism to protect them simultaneously. …”
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A Fourier-series-based virtual fields method for the identification of 2-D stiffness distributions
Published 2014Get full text
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