The intensity modulation direct detection (IM/DD) system based on silicon photonic devices stands out as a leading contender for the next generation of short-reach optical communication due to its cost-effectiveness, ...
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An earlier study by authors implemented Corpuscular Particle Method (CPM) for simulations of Pedestrian Protection Airbags (PPA). Present study utilised the CPM to investigate the effect of gas flow on the airbag’s u...
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Zircon ceramics have potential applications in next-generation wireless communication because of their low permittivity and adjustable temperature coefficient at microwave ***,the vast challenge of realizing ultralow ...
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Zircon ceramics have potential applications in next-generation wireless communication because of their low permittivity and adjustable temperature coefficient at microwave ***,the vast challenge of realizing ultralow dielectric loss still ***,we propose a high-entropy strategy to enhance the bonding of the A-site dodecahedron in zircon and design(Nd_(0.2)Eu_(0.2)Y_(0.2)Ho_(0.2)Yb_(0.2))VO_(4) ceramics with a high quality factor(high Q×f,that is,low dielectric loss).The(Nd_(0.2)Eu_(0.2)Y_(0.2)Ho_(0.2)Yb_(0.2))VO_(4) high-entropy ceramics,which belong to the tetragonal zircon structure with the I4_(1)/amd space group,exhibit a low relative permittivity(ε_(r)=11.55),a negative temperature coefficient of resonant frequency(τ_(f)=−37.3 ppm/℃),and a high Q×f of 76,400 GHz(at 12.31 GHz).The high Q×f value can be attributed to the high chemical bond strength and structural ***,the relationship between the crystal structure and the microwave dielectric properties of(Nd_(0.2)Eu_(0.2)Y_(0.2)Ho_(0.2)Yb_(0.2))VO_(4) high-entropy ceramics was analyzed through high resolution transmission electron microscopy(HRTEM),Raman spectroscopy,far-infrared reflection spectroscopy,and chemical bond *** work provides an effective avenue for designing microwave dielectric materials with low loss to meet the demands of passive components.
This work proposes an uncertainty-informed bid adjustment framework for integrating variable renewable energy sources (VRES) into electricity markets. This framework adopts a bilevel model to compute the optimal VRES ...
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Developing efficient catalysts is of great significance in improving the sluggish kinetics and high desorption temperature of Mg H_(2)hydrogen storage ***,ultrathin Ni Ti-layered double hydroxide(Ni Ti-LDH)nanosheets ...
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Developing efficient catalysts is of great significance in improving the sluggish kinetics and high desorption temperature of Mg H_(2)hydrogen storage ***,ultrathin Ni Ti-layered double hydroxide(Ni Ti-LDH)nanosheets are used as precursors to prepare Mg_(2)Ni/TiH_(1.5)composite catalysts to improve the hydrogen storage properties of MgH_(2).The variation of Ni/Ti ratio in LDH plays an important role in regulating the composition,morphology and distribution of Mg_(2)Ni/Ti H_(1.5)catalysts,which significantly affect their synergistic catalytic ***_(2)Ni/TiH_(1.5)composite catalyst exhibits significantly improved catalytic performance compared with conventional Ni-,Ti-and Ni/Ti-based *** optimal Mg H_(2)/Mg_(2)Ni/TiH_(1.5)system shows a significantly reduced desorption temperature of 212℃which is 133℃lower than that of pure MgH_(2)(345℃),and can release 5.97 wt%hydrogen within 300s at 300℃.Further mechanism analysis reveals that the unique flaky morphology and suitable composition of Ni/Ti LDH can significantly enhance the synergistic effect of Mg_(2)Ni and TiH_(1.5),which promotes the fracture of the H–H and Mg-H bonds.
A novel three-layer gated recurrent unit neural network (TL-GRU) equalizer for high-speed intensity modulation direct-detection (IM/DD) PAM-4 systems is *** on this novel equalization scheme, the BER performance of th...
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An increase in fibrinogen, a coagulation factor in blood, enhances erythrocyte aggregation. However, no pre-vious studies have fully investigated erythrocyte aggregation at low plasma fibrinogen concentrations (1/2) i...
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We investigate the chiral edge states-induced Josephson current–phase relation in a graphene-based Josephson junction modulated by the off-resonant circularly polarized light and the staggered sublattice *** solving ...
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We investigate the chiral edge states-induced Josephson current–phase relation in a graphene-based Josephson junction modulated by the off-resonant circularly polarized light and the staggered sublattice *** solving the Bogoliubov–de Gennes equation,a φ_(0) Josephson junction is induced in the coaction of the off-resonant circularly polarized light and the staggered sublattice potential,which arises from the fact that the center of-mass wave vector of Cooper pair becomes finite and the opposite center of-mass wave vector to compensate is lacking in the nonsuperconducting ***,when the direction of polarization of light is changed,-φ_(0) to φ_(0) transition generates,which generalizes the concept of traditional 0–π*** findings provide a purely optical way to manipulate a phase-controllable Josephson device and guidelines for future experiments to confirm the presence of graphene-based φ_(0)Josephson junction.
We present a new method using the combination of the Fast Fourier transform (FFT)-support vector regression (SVR) algorithm for fast spectral demodulation of an optical fiber torsion sensor based on Sagnac interferome...
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A technique using droplets suspended by ultrasound has attracted attention as one of the containerless processing methods. While this can avoid contamination from the container, it is known that ultrasonic levitation ...
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