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Journal articles on the topic 'Guided slow-modes'

Author: Grafiati

Published: 20 July 2024

Last updated: 31 July 2025

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1

JIANG, YONG-YUAN, and ZONG-JING SHEN. "GUIDING CHARACTERISTICS OF AN AIR WAVEGUIDE WITH LEFT-HANDED METAMATERIALS CLADDING." Journal of Nonlinear Optical Physics & Materials 17, no. 04 (2008): 465–71. http://dx.doi.org/10.1142/s021886350800441x.

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The characteristics of guided modes of a planar waveguide in which an air core is sandwiched by two left-handed metamaterials are studied. The dispersion relation of the guided modes in this air waveguide is derived where the left-handed metamaterials claddings can be either isotropic or uniaxially anisotropic. We analyze the fast and slow wave characteristics of the guided modes. The problem of whether the dispersion relation of slow wave modes has a solution is explored. The relation between the electromagnetic parameters of the waveguide and the solution of the dispersion relation of the sl

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KURT, H. "ALL-DIELECTRIC PERIODIC MEDIA ENGINEERED FOR SLOW LIGHT STUDIES." International Journal of Modern Physics B 27, no. 27 (2013): 1330020. http://dx.doi.org/10.1142/s021797921330020x.

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The paper presents various novel approaches to implementing slow light media by manipulating the group velocity via dispersion engineering of guided modes. Light is confined and then linked with a low group velocity inside a photonic crystal waveguide (PCW) and at the PC-air interface. We discuss both basic and engineered slow light waveguide structures. The structural changes in PCs greatly modify the spectral characteristics of the dispersion curves. The search for flat bands gives rise to various strategies for slowing the optical pulses. An appropriate and commonly adopted figure of merit

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Liu, Qi, and Qi Chao Liu. "Slow Light Properties of 2D Photonic Crystal Waveguide for Optical Storage in Optical Computers." Advanced Materials Research 452-453 (January 2012): 1210–14. http://dx.doi.org/10.4028/www.scientific.net/amr.452-453.1210.

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Slow light properties of the photonic crystal line-defect waveguide are researched with the plane wave expansion method. The structure of the waveguide is adjusted with several methods mentioned above at the same time and the slow light properties get better. For the structure of dielectric rods, central frequency and the group velocity of the guided modes decrease with the increase of the radii of the defected rods as well as the dielectric constant. Effects on the slow light from the change of the defected rods’ position are also studied, through moving the rods up and down; we get the almos

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Amorntep, W., and P. Wanchai. "Guided Modes of Slow Photon in Silicon Photonic Crystal Waveguide with Honeycomb Lattice." Advanced Science Letters 19, no. 3 (2013): 893–97. http://dx.doi.org/10.1166/asl.2013.4829.

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Li, Guofeng, Junbo Yang, Zhaojian Zhang, et al. "Double Electromagnetically Induced Transparency and Its Slow Light Application Based on a Guided-Mode Resonance Grating Cascade Structure." Materials 13, no. 17 (2020): 3710. http://dx.doi.org/10.3390/ma13173710.

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In recent years, the achievement of the electromagnetically induced transparency (EIT) effect based on the guided-mode resonance (GMR) effect has attracted extensive attention. However, few works have achieved a double EIT-like effect using this method. In this paper, we numerically achieve a double EIT-like effect in a GMR system with a three-layer silicon nitride waveguide grating structure (WGS), using the multi-level atomic system model for theoretical explanation. In terms of slow light performance, the corresponding two delay times reach 22.59 ps and 8.43 ps, respectively. We also invest

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Ballai, Istvan, Fisal Asiri, Viktor Fedun, Gary Verth, Emese Forgács-Dajka, and Abdulrahman B. Albidah. "Slow Body MHD Waves in Inhomogeneous Photospheric Waveguides." Universe 10, no. 8 (2024): 334. http://dx.doi.org/10.3390/universe10080334.

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The present study deals with the investigation of the oscillatory morphology of guided slow body MHD modes in inhomogeneous magnetic waveguides that appear in the solar photospheric plasmas in the forms of pores or sunspots. The eigenvalues and eigenfunctions related to these waves in an isothermal plasma are obtained numerically by solving a Sturm-Liouville problem with Dirichlet boundary conditions set at the boundary of the waveguide. Our results show that the inhomogeneities in density (pressure) and magnetic field have a strong influence on the morphology of waves, and higher-order more a

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Laude, Vincent, Jean Charles Beugnot, Sarah Benchabane, et al. "Simultaneous guidance of slow photons and slow acoustic phonons in silicon phoxonic crystal slabs." Optics express 19, no. 10 (2011): 9690–98. https://doi.org/10.1364/OE.19.009690.

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We demonstrate theoretically that photons and acoustic phonons can be simultaneously guided and slowed down in specially designed nanostructures. Phoxonic crystal waveguides presenting simultaneous phononic and photonic band gaps were designed in perforated silicon membranes that can be conveniently obtained using silicon-on-insulator technology. Geometrical parameters for simultaneous photonic and phononic band gaps were first chosen for optical wavelengths around 1550 nm, based on the finite element analysis of a perfect phoxonic crystal of circular holes. A plain core waveguide was then def

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Djuve, Vilde Lunnan, Carl Henrik Knutsen, and Tore Wig. "Patterns of Regime Breakdown Since the French Revolution." Comparative Political Studies 53, no. 6 (2019): 923–58. http://dx.doi.org/10.1177/0010414019879953.

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We present a temporally fine-grained data set on regimes, defined as the formal and informal rules essential for selecting leaders. The data set comprises more than 2,000 regimes from 197 polities, 1789 to 2016. We highlight how the frequency of breakdowns and particular modes of breakdown have followed cyclical rather than monotonic patterns across modern history. The most common breakdown modes, overall, are coups and incumbent-guided regime transformations. Furthermore, we report robust evidence that low income, slow or negative growth, and intermediate levels of democracy predict a higher

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Fayard, Nikos, Adrien Bouscal, Jeremy Berroir, et al. "The comb waveguide: a new tool for strong interaction between atoms and light." EPJ Web of Conferences 266 (2022): 08002. http://dx.doi.org/10.1051/epjconf/202226608002.

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Coupling quantum emitters and nanostructures, in particular cold atoms and waveguides, has recently raised a large interest due to unprecedented possibilities of engineering light-matter interactions. However, the implementation of these promising concepts has been hampered by various theoretical and experimental issues. In this work, we propose a new type of periodic dielectric waveguide that provides strong interactions between atoms and guided photons with an unusual dispersion. We design an asymmetric comb waveguide that supports a slow mode with a quartic (instead of quadratic) dispersion

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Kumari, Sheelu, Vibha Rani Gupta, and Shweta Srivastava. "Analysis of Narrow Slot Loading on a Half Guided Wavelength Folded Substrate Integrated Waveguide." ECTI Transactions on Electrical Engineering, Electronics, and Communications 19, no. 2 (2021): 174–81. http://dx.doi.org/10.37936/ecti-eec.2021192.241655.

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In this paper, effects due to variation in positioning, width and length of a narrow slot loaded on central metal septum of a half guided wavelength Folded Substrate Integrated Waveguide (FSIW) segment is presented. The study shows that the most significant effect is due to variation in slot length. It was observed that the slot loading can be used both for slow wave structure and filter depending on the length of the slot. The smaller lengths of the slot provide the slow wave effect, whereas the longer lengths result in filtering effect. Both the phenomena are explained with the help of field

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Yu, Pengchao, Volodymyr I. Fesenko, and Vladimir R. Tuz. "Dispersion features of complex waves in a graphene-coated semiconductor nanowire." Nanophotonics 7, no. 5 (2018): 925–34. http://dx.doi.org/10.1515/nanoph-2018-0026.

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AbstractThe dispersion features of a graphene-coated semiconductor nanowire operating in the terahertz frequency band are consistently studied in the framework of a special theory of complex waves. Detailed classification of the waveguide modes was carried out based on the analysis of characteristics of the phase and attenuation constants obtained from the complex roots of characteristic equation. With such a treatment, the waves are attributed to the group of either “proper” or “improper” waves, wherein their type is determined as the trapped surface waves, fast and slow leaky waves, and surf

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Claes, N., and R. Keppens. "Thermal stability of magnetohydrodynamic modes in homogeneous plasmas." Astronomy & Astrophysics 624 (April 2019): A96. http://dx.doi.org/10.1051/0004-6361/201834699.

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Context. Thermal instabilities give rise to condensations in the solar corona, and are the most probable scenario for coronal rain and prominence formation. We revisit the original theoretical treatment done by Field (1965, ApJ, 142, 531) in a homogeneous plasma with heat-loss effects and combine this with state-of-the-art numerical simulations to verify growth-rate predictions and address the long-term non-linear regime. We especially investigate interaction between multiple magnetohydrodynamic (MHD) wave modes and how they in turn trigger thermal mode development. Aims. We assess how well th

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Huthwaite, P. "Improving accuracy through density correction in guided wave tomography." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 472, no. 2186 (2016): 20150832. http://dx.doi.org/10.1098/rspa.2015.0832.

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The accurate quantification of wall loss caused by corrosion is critical to the reliable life estimation of pipes and pressure vessels. Traditional thickness gauging by scanning a probe is slow and requires access to all points on the surface; this is impractical in many cases as corrosion often occurs where access is restricted, such as beneath supports where water collects. Guided wave tomography presents a solution to this; by transmitting guided waves through the region of interest and exploiting their dispersive nature, it is possible to build up a map of thickness. While the best results

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ALTMAN, C., and K. SUCHY. "Alfvén modes in a two-species magnetoplasma with anisotropic perturbation pressure-fluid and kinetic calculations." Journal of Plasma Physics 73, no. 4 (2007): 455–71. http://dx.doi.org/10.1017/s0022377806004764.

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AbstractThe octic fluid dispersion equation, the kinetic Boltzmann–Vlasov equation and the MHD (scalar pressure) analysis, programmed for a two-species collisionless magnetoplasma in a form permitting direct comparison between them, have been applied to the study of the Alfvén modes in both low- and high-β plasmas. In the low-βregime all methods give essentially the same solutions for the isotropic fast magnetosonic and the field-guided shear Alfvén modes. The real part of the refractive index of the field-guided slow magnetosonic acoustic mode is almost identical in the fluid and kinetic anal

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15

Ofman, Leon, and Tongjiang Wang. "Excitation and Damping of Slow Magnetosonic Waves in Flaring Hot Coronal Loops: Effects of Compressive Viscosity." Astrophysical Journal 926, no. 1 (2022): 64. http://dx.doi.org/10.3847/1538-4357/ac4090.

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Abstract Slow magnetosonic waves associated with flares were observed in coronal loops by Solar and Heliospheric Observatory/Solar Ultraviolet Measurements of Emitted Radiation, Solar Dynamics Observatory/Atmospheric Imaging Assembly in various EUV bandpasses, and other instruments. The excitation and damping of slow magnetosonic waves provides information on the magnetic, temperature, and density structure of the loops. Recently, it was found using 1.5D models that the thermal conduction is suppressed and compressive viscosity is enhanced in hot (T > 6 MK) flaring coronal loops. We model t

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Belloncle, Gaël, Francine Luppé, Hervé Franklin, and Jean-Marc Conoir. "Influence of the slow wave on the relation between the angular resonances and the leaky guided modes properties for a poroelastic plate embedded in water." Ultrasonics 42, no. 1-9 (2004): 511–14. http://dx.doi.org/10.1016/j.ultras.2004.01.098.

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17

Boko, Margaret Nampitjinpa, Rosalyn Boko, and Lisa Stefanoff. "Winimaku ara papa wiimatjaraku and other stories." Australian Journal of Anthropology 35, no. 1-2 (2024): 117–34. http://dx.doi.org/10.1111/taja.12488.

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AbstractThis audio‐visual essay invites readers to enter a new intermedial archive of documentary paintings and stories by a celebrated and prolific multilingual Central Australian Aboriginal woman artist. Addressing our written text to intimate family and audiences from elsewhere, in multiple voices and modes of address, we offer an opportunity to consider the dynamics of creating, keeping and caring for memory through the affordances of digital co‐creativity. These include what we term ‘painting remix animation’, a form of what co‐author Rosalyn Boko calls mixamilani (‘mixing together’ of di

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18

Stuckenschneider, Lisa, and Peter L. Graumann. "Localization and Single Molecule Dynamics of Bacillus subtilis Penicillin-Binding Proteins Depend on Substrate Availability and Are Affected by Stress Conditions." Cells 14, no. 6 (2025): 429. https://doi.org/10.3390/cells14060429.

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We have used single molecule tracking to investigate dynamics of four penicillin-binding proteins (PBPs) in Bacillus subtilis to shed light on their possible modes of action. We show that Pbp2a, Pbp3, Pbp4, and Pbp4a, when expressed at very low levels, show at least two distinct states of mobility: a state of slow motion, likely representing molecules involved in cell wall synthesis, and a mode of fast motion, likely representing freely diffusing molecules. Except for Pbp4, all other PBPs showed about 50% molecules in the slow mobility state, suggesting that roughly half of all molecules are e

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19

Wang, Jiayu, Guangyi Zhang, Qiaoli Wang, et al. "Improved Thin-Kerf Processing in Cf/SiC Composite by Waterjet-Guided Nanosecond Laser Decreases Oxidation and Thermal Effect." Materials 18, no. 7 (2025): 1560. https://doi.org/10.3390/ma18071560.

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As a hard and brittle material, the processing of Cf/SiC ceramic matrix composites (CMCs) faces significant challenges, especially in the processing of small-sized shapes. To address this challenge, laser processing with gas-assisted nanosecond laser (GNL) and waterjet-guided nanosecond laser (WNL) modes were applied to fabricate thin kerfs in the Cf/SiC composite. The surface morphology, microstructure, and chemical composition of the processed Cf/SiC composite were investigated comparatively. The results revealed that the coupling of helium in the GNL mode laser processing could make full us

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20

Kazys, Rymantas Jonas, Liudas Mazeika, and Justina Sestoke. "Development of Ultrasonic Techniques for Measurement of Spatially Non-Uniform Elastic Properties of Thin Plates by Means of a Guided Sub-Sonic A0 Mode." Applied Sciences 10, no. 9 (2020): 3299. http://dx.doi.org/10.3390/app10093299.

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Air-coupled ultrasonic guided A0 mode is already used for material characterization. By measuring the phase velocity of the A0 mode the elastic properties, such as the Young’s modulus, can be determined. The objective of this work was the development of measurement methods and corresponding signal processing procedures enabling the acquisition of spatial distributions of non-uniform elastic properties of thin films and plates. Those methods are based on the excitation of a slow sub-sonic A0 Lamb wave mode in a plate, the measurement of normal displacements at different distances from the sourc

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Kehrer, Andreas, Paul I. Heidekrueger, Daniel Lonic, et al. "Technical Aspects of High-Resolution Color-Coded Duplex Sonography for the Design of Perforator Flaps." Journal of Reconstructive Microsurgery 38, no. 03 (2022): 181–92. http://dx.doi.org/10.1055/s-0041-1740956.

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Abstract Background Technical aspects are of utmost significance for an efficient execution in designing perforator flaps with high-resolution color-coded Duplex sonography (CCDS). The following study evaluates decisive factors for a successful microvessel examination conducted by the microsurgeon. Methods Technical knowledge presented in this study was based on a series of more than 200 perforator flaps planned with CCDS. Flap reconstructions were performed at the University Hospital Regensburg, Germany, from July 2013 to January 2021. Standard high-resolution ultrasound (US) devices with lin

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Korneev, Valeri, Ludmila Danilovskaya, Seiji Nakagawa, and George Moridis. "Krauklis wave in a trilayer." GEOPHYSICS 79, no. 4 (2014): L33—L39. http://dx.doi.org/10.1190/geo2013-0216.1.

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The Krauklis wave is a slow dispersive wave mode that propagates in a fluid layer bounded by elastic media. The guided properties of this wave and its ability to generate very short wavelengths at seismic frequency range predict possibility of resonances in fluid-filled rock fractures. Study of Krauklis wave properties at laboratory scales requires evaluation of its propagation velocities in models with finite and thin elastic walls. Analysis of an exact solution for a fluid-filled trilayer with equal thickness plates reveals existence of the Krauklis waves in such a model, as well as another

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Schmitt, Denis P., Michel Bouchon, and Guy Bonnet. "Full‐wave synthetic acoustic logs in radially semiinfinite saturated porous media." GEOPHYSICS 53, no. 6 (1988): 807–23. http://dx.doi.org/10.1190/1.1442516.

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The wave field generated by a point source in an axisymmetric fluid‐filled borehole embedded in a saturated porous formation is studied in both the spectral domain and time domain. The formation is modeled following Biot theory modified in accordance with homogenization theory. When the borehole wall is permeable, guided waves can be significantly affected by the permeability of the formation. Whatever the formation, fast or slow, Stoneley‐wave phase velocity and energy decrease and attenuation (in the sense of [Formula: see text]) increases with increasing permeability. These effects are more

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Ghanekar, A., R. Kapadia, and M. L. Povinelli. "Directional control of absorptivity with quasi-localized guided modes." Applied Physics Letters 121, no. 20 (2022): 201701. http://dx.doi.org/10.1063/5.0123685.

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We present a guided mode resonance grating that exhibits high-Q resonances with highly selective directional absorption around 3.7 μm. The grating is designed to create slow guided mode resonances with near-flat dispersion relation. Weakly coupled resonators enable such resonances with small dispersion characteristics. We study the dynamic control of directional absorption using the design presented. We show that weaker dispersion of resonance frequency allows a strong sensitivity concerning the directionality of resonance. Our results indicate that the directionality of absorption can be tune

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Ryskin, Nikita. "Modulational instability of space-charge waves." Izvestiya VUZ. Applied Nonlinear Dynamics 2, no. 3 (1994): 93–100. https://doi.org/10.18500/0869-6632-1994-2-5-93-100.

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Modulational instability of space-charge waves in a strongly magnetized cylindrical charge-neutralized electron beam in a cylindrical wave guide is investigated. For slowly varying amplitudes of fast and slow space-charge modes a system of coupled nontinear Schrodinger equations is derived. It is shown, that because of the interaction between the fast and slow modes, waves of almost all wave numbers are modulationally unstable.

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KIRINO, Hideki, Kazuhiro HONDA, Kun LI, and Koichi OGAWA. "A Waffle-Iron Ridge Guide with Combined Fast- and Slow-Wave Modes for Array Antenna Applications." IEICE Transactions on Communications E101.B, no. 2 (2018): 349–56. http://dx.doi.org/10.1587/transcom.2017isp0013.

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27

Dargaville, Peter A. "Respiratory Support in Meconium Aspiration Syndrome: A Practical Guide." International Journal of Pediatrics 2012 (2012): 1–9. http://dx.doi.org/10.1155/2012/965159.

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Meconium aspiration syndrome (MAS) is a complex respiratory disease of the term and near-term neonate. Inhalation of meconium causes airway obstruction, atelectasis, epithelial injury, surfactant inhibition, and pulmonary hypertension, the chief clinical manifestations of which are hypoxaemia and poor lung compliance. Supplemental oxygen is the mainstay of therapy for MAS, with around one-third of infants requiring intubation and mechanical ventilation. For those ventilated, high ventilator pressures, as well as a relatively long inspiratory time and slow ventilator rate, may be necessary to a

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Andersson, Nils, and Fabian Gittins. "Formulating the r-mode Problem for Slowly Rotating Neutron Stars." Astrophysical Journal 945, no. 2 (2023): 139. http://dx.doi.org/10.3847/1538-4357/acbc1e.

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Abstract We revisit the problem of inertial r-modes in stratified stars, drawing on a more precise description of the composition stratification in a mature neutron star. The results highlight issues with the traditional approach to the problem, leading us to rethink the computational strategy for the r-modes of nonbarotropic neutron stars. We outline two strategies for dealing with the problem. For moderate to slowly rotating neutron stars the only viable alternative may be to approach the problem numerically from the outset, while a meaningful slow-rotation calculation can be carried out for

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Thompson, Christopher. "Radio Emission of Pulsars. I. Slow Tearing of a Quantizing Magnetic Field." Astrophysical Journal 933, no. 2 (2022): 231. http://dx.doi.org/10.3847/1538-4357/ac501f.

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Abstract The pulsed radio emission of rotating neutron stars is connected to slow tearing instabilities feeding off an inhomogeneous twist profile within the open circuit. This paper considers the stability of a weakly sheared, quantizing magnetic field in which the current is supported by a relativistic particle flow. The electromagnetic field is almost perfectly force free, and particles are confined to the lowest Landau state, experiencing no appreciable curvature drift. In a charge-neutral plasma, we find multiple branches of slowly growing tearing modes, relativistic analogs of the double

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Nicolaidou, Evangelia, Thomas L. Hill, and Simon A. Neild. "Detecting internal resonances during model reduction." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 477, no. 2250 (2021): 20210215. http://dx.doi.org/10.1098/rspa.2021.0215.

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Model order reduction of geometrically nonlinear dynamic structures is often achieved via a static condensation procedure, whereby high-frequency modes are assumed to be quasi-statically coupled to a small set of lower frequency modes, which form the reduction basis. This approach is mathematically justifiable for structures characterized by slow/fast dynamics, such as thin plates and slender beams, and has been shown to provide highly accurate results. Nevertheless, selecting the reduction basis without a priori knowledge of the full-order dynamics is a challenging task; retaining redundant m

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Roberts, B. "Waves in Magnetic Flux Tubes." Symposium - International Astronomical Union 142 (1990): 159–74. http://dx.doi.org/10.1017/s0074180900087891.

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The basic aspects of wave propagation in a magnetic flux tube are reviewed, with particular emphasis on the types of flux tube that occur in the solar atmosphere. Two fundamental speeds arise naturally in a description of wave propagation in a flux tube: the slow magnetoacoustic (cusp) speed cT, which is both subsonic and sub-Alfvénic, and a mean Alfvén speed ck. Both surface and body modes are supported by a tube. It is stressed that a flux tube may act as a wave guide, similar to the guidance of light by a fibre optic, or sound in an ocean layer, or seismic waves in the Earth's crust.

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Chen, Hongting, Zhaojian Zhang, Xiao Zhang, Yunxin Han, Zigang Zhou, and Junbo Yang. "Multifunctional Plasmon-Induced Transparency Devices Based on Hybrid Metamaterial-Waveguide Systems." Nanomaterials 12, no. 19 (2022): 3273. http://dx.doi.org/10.3390/nano12193273.

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In this paper, we design a multifunctional micro-nano device with a hybrid metamaterial-waveguide system, which leads to a triple plasmon-induced transparency (PIT). The formation mechanisms of the three transparent peaks have their own unique characteristics. First, PIT-I can be switched into the BIC (Friedrich–Wintge bound state in continuum), and the quality factors (Q-factors) of the transparency window of PIT-I are increased during the process. Second, PIT-II comes from near-field coupling between two bright modes. Third, PIT-III is generated by the near-field coupling between a low-Q bro

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Smith, Eliot R., and Jamie DeCoster. "Dual-Process Models in Social and Cognitive Psychology: Conceptual Integration and Links to Underlying Memory Systems." Personality and Social Psychology Review 4, no. 2 (2000): 108–31. http://dx.doi.org/10.1207/s15327957pspr0402_01.

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Models postulating 2 distinct processing modes have been proposed in several topic areas within social and cognitive psychology. We advance a new conceptual model of the 2 processing modes. The structural basis of the new model is the idea, supported by psychological and neuropsychological evidence, that humans possess 2 memory systems. One system slowly learns general regularities, whereas the other can quickly form representations of unique or novel events. Associative retrieval or pattern completion in the slow-learning system elicited by a salient cue constitutes the effortless processing

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Liebich, Alina, Shenglin Zheng, Theresa Schachner, et al. "Non-pharmaceutical interventions and epigenetic aging in adults: Protocol for a scoping review." PLOS ONE 19, no. 8 (2024): e0301763. http://dx.doi.org/10.1371/journal.pone.0301763.

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Introduction Aging is the strongest risk factor for most chronic diseases. The rising burden of an aging population and non-communicable diseases (NCDs), contributes to escalating costs for society. Several non-pharmaceutical interventions can lower the risk of NCDs, including common mental disorders (CMDs), and may slow down biological aging, as evidenced by outcome markers such as epigenetic clocks. However, a comprehensive overview of whether and which non-pharmaceutical interventions may impact human epigenetic aging is missing. Synthesizing evidence of interventions on epigenetic aging th

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Xu, Zhen, and Shudan Zheng. "Research on the "multi-agent co-governance" system of unfair competition on internet platforms: Based on the perspective of evolutionary game." PLOS ONE 19, no. 4 (2024): e0301627. http://dx.doi.org/10.1371/journal.pone.0301627.

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Unfair competition on internet platforms (UCIP) has become a critical issue restricting the platform economy’s healthy development. This paper applies evolutionary game theory to study how to utilize multiple subjects’ synergy to supervise UCIP effectively. First, the "multi-agent co-governance" mode of UCIP is constructed based on the traditional "unitary supervision" mode. Second, the government and internet platform evolutionary game models are built under two supervision modes. Finally, MATLAB is used to simulate and analyze the evolutionary stage and parameter sensitivity. In addition, we

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Zou, Jiexin, Ning Han, Jiangyan Yan, et al. "Electrochemical Compression Technologies for High-Pressure Hydrogen: Current Status, Challenges and Perspective." Electrochemical Energy Reviews 3, no. 4 (2020): 690–729. http://dx.doi.org/10.1007/s41918-020-00077-0.

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Abstract Hydrogen is an ideal energy carrier in future applications due to clean byproducts and high efficiency. However, many challenges remain in the application of hydrogen, including hydrogen production, delivery, storage and conversion. In terms of hydrogen storage, two compression modes (mechanical and non-mechanical compressors) are generally used to increase volume density in which mechanical compressors with several classifications including reciprocating piston compressors, hydrogen diaphragm compressors and ionic liquid compressors produce significant noise and vibration and are exp

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Kroon, Sjaak, and Massimiliano Spotti. "L1 Education in Times of Globalization, Digitalization and Super-Diversity." L1-Educational Studies in Language and Literature 24, no. 2 (2024): 1–19. http://dx.doi.org/10.21248/l1esll.2024.24.2.673.

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This introduction first briefly sketches the (history of the) International Mother Tongue Education Network (IMEN). IMEN was founded in 1981 as an information and research network that over the years initiated an empirical-interpretive research program focusing on comparative analyses of the rhetoric and practices of L1 education across a dozen of European countries. Main elements of IMEN’s methodology that will be discussed below were the development of different types of research collaboration, a theoretical framework for comparative analysis, and a method for international triangulation. It

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Elgammal, Ramez Ahmed, Carla Cecilia Fraenza, Thomas A. Zawodzinski, and Steven Greenbaum. "Lithium Ion Battery Electrolytes Based on Deep Eutectic Solvents." ECS Meeting Abstracts MA2023-01, no. 2 (2023): 547. http://dx.doi.org/10.1149/ma2023-012547mtgabs.

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Deep eutectic solvents (DESs) have emerged as an alternative to both common organic solvents and ionic liquids (ILs). DESs share physicochemical properties with ILs such as low vapor pressure, high thermal stability, while offering advantages such as low toxicity, lower cost, and ease of preparation. Moreover, DESs are attractive candidates for electrochemical applications due to their large voltage windows and solubility properties. DESs as a solvent class share a general composition of a hydrogen bond donor (HBD), typically a polyol, amide, or acid, and a hydrogen bond acceptor (HBA), usuall

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Elgammal, Ramez A., Carla Cecilia Fraenza, Steven Greenbaum, and Thomas A. Zawodzinski. "(Digital Presentation) Fundamentals of Deep Eutectic Solvents As Electrolytes for Lithium-Ion Batteries." ECS Meeting Abstracts MA2022-02, no. 46 (2022): 1719. http://dx.doi.org/10.1149/ma2022-02461719mtgabs.

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Deep eutectic solvents (DESs) have emerged as an alternative to both common organic solvents and ionic liquids (ILs). DESs share physicochemical properties with ILs such as low vapor pressure, high thermal stability, high viscosity while offering advantages such as low toxicity, lower cost, and ease of preparation. Moreover, DESs are attractive candidates for electrochemical applications due to their large voltage windows and solubility properties. DESs as a solvent class share a general composition of a hydrogen bond donor (HBD), typically a polyol, amide, or acid, and a hydrogen box acceptor

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Djuanda, Lyon Ambrosio, Muthia Nis Tiadah, Ananda Hisma Putra Kristianto, Fatih Akbar Alim Putra, Aufa Putra Wicaksono, and Florentina Yuni Arini. "Analisis Pengalaman Pengguna dari Segi Fitur "Search for a Pickup" dan "Search for a Destination" pada Gocar dalam Aplikasi Gojek." Jurnal Ilmiah ILKOMINFO - Ilmu Komputer & Informatika 8, no. 1 (2025): 72–86. https://doi.org/10.47324/ilkominfo.v8i1.287.

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Abstrak: Layanan GoCar pada aplikasi Gojek memberikan kemudahan bagi pengguna dalam mencari moda transportasi mobil. Penelitian ini menganalisis layanan GoCar pada aplikasi Gojek dengan fokus pada fitur "Search for a Pickup" dan "Search for a Destination" menggunakan metode studi literatur dan System Usability Scale (SUS) sebagai alat ukur penilaian kegunaan, dengan SPSS sebagai tool untuk menganalisis hasil pengukuran. Kajian ini meninjau berbagai literatur yang relevan terkait pengalaman pengguna, dengan analisis menggunakan parameter SUS yang mencakup aspek pengalaman pengguna, kemudahan pe

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Bell, Lauren, Claire Garnett, Tianchen Qian, Olga Perski, Elizabeth Williamson, and Henry WW Potts. "Engagement With a Behavior Change App for Alcohol Reduction: Data Visualization for Longitudinal Observational Study." Journal of Medical Internet Research 22, no. 12 (2020): e23369. http://dx.doi.org/10.2196/23369.

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Background Behavior change apps can develop iteratively, where the app evolves into a complex, dynamic, or personalized intervention through cycles of research, development, and implementation. Understanding how existing users engage with an app (eg, frequency, amount, depth, and duration of use) can help guide further incremental improvements. We aim to explore how simple visualizations can provide a good understanding of temporal patterns of engagement, as usage data are often longitudinal and rich. Objective This study aims to visualize behavioral engagement with Drink Less, a behavior chan

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Raab, Marc S., Jonathan L. Kaufman, Shambavi Richard, et al. "Hdp-101, an Anti-BCMA Antibody-Drug Conjugate with a Novel Payload Amanitin in Patients with Relapsed Multiple Myeloma, Initial Findings of the First in Human Study." Blood 142, Supplement 1 (2023): 3334. http://dx.doi.org/10.1182/blood-2023-182480.

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Introduction Several antibody-drug conjugates (ADCs) are currently being evaluated in clinical trials in a variety of malignancies. The vast majority of these are based on a few toxic compounds, largely limited to microtubule- or DNA-targeting toxins which impact proliferating cells and have limited efficacy in diseases with a low proliferative fraction such as multiple myeloma. Thus, new compounds with alternative modes of action and the ability to actively induce cell death in non-proliferating tumor cells could enhance the therapeutic potential of ADCs. We are currently developing amanitin

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Gomez-Urrea, Hernan Alejandro, Jose Gerardo Cardona, Francisco Jose Caro-Lopera, and Miguel Eduardo Mora-Ramos. "Photonic band gaps and waveguide slow-light propagation in Bravais-Moiré two-dimensional photonic crystals." Journal of Optics, November 7, 2022. http://dx.doi.org/10.1088/2040-8986/aca0aa.

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Abstract Photonic band gap widths and slow-light optical guided modes are theoretically investigated for Bravais-Moiré photonic crystals made of cylindrical dielectric cores which are formed from the combination of two square Bravais lattices. Moiré pattern forms due to a commensurable rotation of one of these lattices with respect to the other. The analysis of gap maps is made versus the radii of dielectric cores -both rotated and unrotated- contained in the Bravais-Moiré unit cell. Guided modes are considered within the framework of coupled-resonator optical waveguides, built from the genera

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Madiot, Guilhem, Omar Florez, and Clivia Sotomayor Torres. "Brillouin light scattering spectroscopy of cavity optomechanical crystals." APL Photonics 10, no. 3 (2025). https://doi.org/10.1063/5.0240489.

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We present a detailed study of Brillouin light scattering (BLS) spectroscopy applied to phononic waveguides embedded within optomechanical crystal structures. By comparing numerical simulations with experimental spectra, we validate the capability of BLS to probe GHz mechanical modes, including acoustic slow modes at 6.7 GHz, in silicon-on-insulator platforms at room temperature. Our results highlight the potential of BLS to characterize mechanical dispersion, guided modes, and acoustic bandgaps in cavity optomechanics, where photons and phonons are colocalized. This work provides critical ins

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Madiot, Guilhem, Marcus Albrechtsen, Søren Stobbe, Clivia M. Sotomayor-Torres, and Guillermo Arregui. "Multimode optomechanics with a two-dimensional optomechanical crystal." APL Photonics 8, no. 11 (2023). http://dx.doi.org/10.1063/5.0170883.

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Chip-scale multimode optomechanical systems have unique benefits for sensing, metrology, and quantum technologies relative to their single-mode counterparts. Slot-mode optomechanical crystals enable sideband resolution and large optomechanical couplings of a single optical cavity to two microwave-frequency mechanical modes. Still, previous implementations have been limited to nanobeam geometries, whose effective quantum cooperativity at ultralow temperatures is limited by their low thermal conductance. In this work, we design and experimentally demonstrate a two-dimensional mechanical–optical–

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Kiefer, Daniel A., Sylvain Mezil, and Claire Prada. "Beating resonance patterns and extreme power flux skewing in anisotropic elastic plates." Science Advances 9, no. 51 (2023). http://dx.doi.org/10.1126/sciadv.adk6846.

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Elastic waves in anisotropic media can exhibit a power flux that is not collinear with the wave vector. This has notable consequences for waves guided in a plate. Through laser-ultrasonic experiments, we evidence remarkable phenomena due to slow waves in a single-crystal silicon wafer. Waves exhibiting power flux orthogonal to their wave vector are identified. A pulsed line source that excites these waves reveals a wave packet radiated parallel to the line. Furthermore, there exist precisely eight plane waves with zero power flux. These so-called zero–group-velocity modes are oriented along th

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Fung, Kit-Man, Shu-Jung Lai, Tzu-Lu Lin, and Tien-Sheng Tseng. "Antigen–Antibody Complex-Guided Exploration of the Hotspots Conferring the Immune-Escaping Ability of the SARS-CoV-2 RBD." Frontiers in Molecular Biosciences 9 (March 22, 2022). http://dx.doi.org/10.3389/fmolb.2022.797132.

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The COVID-19 pandemic resulting from the spread of SARS-CoV-2 spurred devastating health and economic crises around the world. Neutralizing antibodies and licensed vaccines were developed to combat COVID-19, but progress was slow. In addition, variants of the receptor-binding domain (RBD) of the spike protein confer resistance of SARS-CoV-2 to neutralizing antibodies, nullifying the possibility of human immunity. Therefore, investigations into the RBD mutations that disrupt neutralization through convalescent antibodies are urgently required. In this study, we comprehensively and systematicall

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Li, Lixia, Wanlu Li, Xueyang Zong, and Yufang Liu. "Self-hybridized exciton-polaritons in perovskite-based subwavelength photonic crystals." New Journal of Physics, August 15, 2022. http://dx.doi.org/10.1088/1367-2630/ac89a5.

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Abstract Self-coupled photonic resonators made of exciton materials have recently provoked great interest in the context of light–matter interactions due to their ability to produce large normal mode splittings. In order to obtain giant Rabi energy, it is rather necessary to ensure large electromagnetic fields within exciton materials. Here, using two independent numerical algorithms, namely, the finite-element method and the rigorous coupled wave analysis, we demonstrate that, even with a moderate oscillation strength, giant Rabi splittings in excess of 250 meV can be achieved in subwavelengt

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Bedrosian, Austin D., Andrew Hrymak, Gisela Lanza, and Michael R. Thompson. "Understanding a frequency shifting phenomenon interfering with in-line acoustic monitoring of an extrusion compounding process for polymer composites." Journal of Thermoplastic Composite Materials, March 11, 2025. https://doi.org/10.1177/08927057251321492.

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This study investigated an anomalous frequency shift observed in collected spectra from an inline monitoring system based on guided ultrasonic waves, with the changing flow rate of an extrusion compounding process for fiber-reinforced thermoplastics. Three possible process parameters to explain the ultrasonic peak shifting, namely melt temperature, velocity, and fiber length were evaluated. The unlikely potential of a doppler moment due to melt velocity, was readily dismissed in the analysis since fluid flow through the die was too slow and while resonance frequency variation may be possible f

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Jeong, Byeongha, Jin Hee Hong, Hyun Kim, Han Kyoung Choe, Kyungjin Kim, and Kyoung J. Lee. "Multi-stability of circadian phase wave within early postnatal suprachiasmatic nucleus." Scientific Reports 6, no. 1 (2016). http://dx.doi.org/10.1038/srep21463.

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Abstract The suprachiasmatic nucleus (SCN) is a group of cells that functions as a biological master clock. In different SCN cells, oscillations of biochemical markers such as the expression-level of clock genes, are not synchronized but instead form slow circadian phase waves propagating over the whole cell population. Earlier studies presumed that their spatio-temporal structure is a fixed property set by the anatomy of a given SCN. Here, we show that this is not the case in early postnatal SCN. Based on bioluminescence imaging experiments with Per2-Luciferase mice SCN cultures which guided

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