The Dirac point (DP) with a double-cone structure for optical fields can be realized in optically homogenous media. condition the realization of DP systems is varying refractive index from negative to zero and then positive. Our analysis verify that, similar electrons graphene, light field near possesses pseudodiffusive property obeying 1/L scaling law, where L propagation distance inside

This study examines the evolution of China's environmental protection policies from a sustainable development perspective, analyzing their across five distinct stages 1972 to present. Through comprehensive analysis policy transformation, stakeholder dynamics, and institutional changes, research reveals complex interplay between domestic international factors shaping governance. The identifies key transitions in approach: passive response active participation, single pollution control...

A Monte Carlo (MC) model was developed and implemented to simulate the thermalization of electrons in inorganic scintillator materials. The incorporates electron scattering with both longitudinal optical acoustic phonons. In this paper, MC applied CsI, pure doped a range thallium concentrations. inclusion internal electric fields shown increase fraction recombined electron-hole pairs broaden distance time distributions. simulations indicate that thermalization, following γ-ray excitation,...

Abstract Nonlinear quenching of electron–hole pairs in the denser regions ionization tracks created by γ‐ray and high‐energy electrons is a likely cause light yield non‐proportionality many inorganic scintillators. Therefore, kinetic Monte Carlo (KMC) simulations were carried out to investigate scintillation properties pure thallium‐doped CsI as function pair density. The availability recent experimental data on excitation density dependence following ultraviolet allowed for an improved...

A guided Bloch surface wave resonance (GBR) configuration is introduced for label-free biosensing. The GBR realized by coupling the first-order diffraction of a subwavelength grating with at interface between 1D photonic crystal slab and bio-solution. In addition to sustaining mode, provides design freedom simultaneously increasing quality decreasing sideband transmissions spectrum. low high-quality features along large sensitivity rising from strong overlap mode bio-solution make suitable...

We propose a novel strategy to optimize sensing performance of the Bloch surface wave (BSW) biosensor. First all, one-dimensional photonic crystal with an omnidirectional bandgap is designed. Except for sustaining BSW, guarantees tiny full width at half maximum (FWHM=0.84 nm) reflection dip induced by BSW resonance. Then, specific dependence wavelength sensitivity on incident angle obtained impedance-matching method. Study shows that increases decreases in (larger than critical angle). At...

Developing a comprehensive understanding of the processes that govern scintillation behavior inorganic scintillators provides pathway to optimize current and allows for science-driven search new scintillator materials. Recent experimental data on excitation density dependence light yield presents an opportunity incorporate parameterized interactions between excitations in models thus enable more realistic simulations nonproportionality scintillators. Therefore, kinetic Monte Carlo (KMC)...

The aim of the study was to investigate state-of-the-art performance critical value reporting and provide recommendations for laboratories setting time frames.The National Centre Clinical Laboratories in China initiated a investigation 2015. A questionnaire related policy sent 1589 clinical online. consisted set questions timeliness reporting. survey data were collected between March April 2015.A total response rate 61.2%. unreported rate, timely unacknowledged more than half participants...

We investigate the ground-state phase diagram of a binary mixture Bose-Einstein condensates (BECs) with competing interspecies s-and p-wave interactions.Exploiting pseudopotential model for l = 1 partial wave, we derive an extended Gross-Pitaevskii (GP) equation BEC that incorporates both interactions.Based on it, study miscible-immiscible transition in presence interaction, by combining numerical solution GP and Gaussian variational analysis.Our uncovers dual effect-either enhance or reduce...

We investigate the band structure and topological phase transition of photonic time crystals (PTC)-systems in which physical parameter varies periodically time. find that PTC system can be revealed by wave vector gap (k-gap) size, was induced temporal refraction reflection. Interestingly, a zero-averaged refractive index k-gap is obtained when includes dispersive medium. This special invariant with modulation scaling at given frequency.

The existing theories for the thermal boundary conductance (TBC) of solid–solid interfaces lead to diverse values deviating from experimental measurements. In this paper, we propose a simple mechanism evaluate TBC contributed by phonons at room temperatures, where microscopic structure interface layers between two dissimilar solids is treated as amorphous taking into account mismatches elastic modulus, atomic masses, and lattice spacing. Our theory explains well observed magnitude TBCs...

We propose a scheme to induce transparency in one-dimensional disordered multilayers which are composed of negative permittivity and permeability metamaterials. First, analytical expressions for condition derived exactly, providing us picture that complete tunneling such kind multiple-resonance system can be achieved if exponentially growing waves compensate decaying waves. Second, compensating method is used realize this idea, both simulations experiments performed the microwave regime...

The Green's function method is extended to deal with the propagation problem of surface plasmon polaritons (SPPs) in metal-dielectric-metal (MDM) waveguide network, which a new application area involving discontinuous impedance and complex architecture. By employing method, spatial distributions magnitude phase field network are obtained analytically. agreement numerical simulations confirms that this approach can completely describe transmission properties SPP MDM readily apply structure,...

Nonzero mean value of phonon angular momentum (PAM) in chiral materials can be generated when a temperature gradient is applied. We find that both diagonal and off-diagonal terms PAM contribute to by using the Kubo formula where elements heat current operator are considered. The calculation results show term dominant scattering strong enough. This finding reveals quantum transition between different modes induced strongly affects local atomic rotation. Our discovery provides an explanation...

The chromatographic peak located inside another in the time direction is called an embedded or inner contradistinction with embedding peak, which outer peak. chemical components corresponding to and peaks are components, respectively. This special case of co-eluting chromatograms was investigated using chemometric approaches taking GC-MS as example. A novel method, named chromatogram projection (ICP), for resolution data derived. Orthogonal first utilized obtain profile component. Projection...

The synergistic effects of rare earth (RE) and Mg elements on the high‐temperature oxidation resistance Fe–20Cr–6Al alloy are investigated in‐depth. scale RE–Mg codoped mainly consists α‐Al 2 O 3 /MgAl 4 , with many pores caused by spinel transition. Owing to segregation RE ion at grain boundaries, there is a significant refinement effect oxide grains, which improves spallation offers more boundary diffusion pathways for transport, resulting in an obvious increase weight gain. findings...

Although charity has been developed in China for decades, its basic value attributes have not truly stimulated Chinese society. If we look at the development of philanthropy alone, will only fail to touch core problem, but also deviate from it. Based on a brief analysis early history, this paper finds that problem foreshadowed earliest historical development. Through combination qualitative research methods, realizes key improving and even solving problems field public welfare society does...

We investigate the ground-state phase diagram of a binary mixture Bose-Einstein condensates (BECs) with competing interspecies $s$- and $p$-wave interactions. Exploiting pseudopotential model for $l=1$ partial wave, we derive an extended Gross-Pitaevskii (GP) equation BEC that incorporates both Based on it, study miscible-immiscible transition in presence interaction, by combining numerical solution GP Gaussian variational analysis. Our uncovers dual effect -- either enhance or reduce...

The optical nonlinear properties of an effective anisotropic slab made metal-dielectric lamellar gratings with a small grating-period-to-wavelength ratio Λ/λ → 0 is studied. It shown that when transverse magnetic electromagnetic wave obliquely illuminates such slab, whose normal permittivity much smaller than its tangential one, the vector inside medium extremely sensitive to fluctuation permittivity. Based on this characteristic, obvious modifications phase delay and step-like transmission...