Dielectric resonator magnetoelectric dipole (DRMED) arrays with enhanced isolation, reduced cross-polarization, and backward radiation are proposed for base station (BS) applications. The antenna comprises an elevated dielectric (DRA) on a small metal plate above sizeable common ground plane. DRA is designed in its TE <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">δ11</inf> mode, acting like magnetic dipole. surface current excited by the...

A surrogate-assisted defected ground structure (DGS) design is proposed to suppress <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">E-</i> and xmlns:xlink="http://www.w3.org/1999/xlink">H-</i> plane couplings simultaneously in a 2 × microstrip antenna array at 2.45 GHz. The DGS designed analyzed based on the magnetic current mode theory. Machine learning employed sweep parameters within defined limits fine-tune them obtain optimal design,...

A very small focal-to-diameter (F/D) ratio transmitarray for compact antenna test range (CATR) application is proposed in this article. The comprises a feed antenna, metasurface phase modulation (MPM), and another one amplitude modification (MAM). MPM MAM are implemented using the same cell but with different selections arrangements. holistic phase-only design method determines whether or modulation. CATR collimator an overall low profile realized through joint of MPM. technique overcomes...

Abstract Modern radiotherapy frequently employs radiosensitizers for radiation dose deposition and triggers an immunomodulatory effect to enhance tumor destruction. However, developing glioma‐targeted sensitizers remains challenging due the blood–brain barrier (BBB) multicomponent instability. This study aims green‐synthesize transferrin–bismuth nanoparticles (TBNPs) as biosafe X‐ray absorption by tumors stimulate immune response glioma therapy. The proposed protein‐based strategy provides...

We apply transformer models and feedforward neural networks to predict Frobenius traces $a_p$ from elliptic curves given other $a_q$. train further $a_p \bmod 2$ $a_q 2$, cross-analysis such as Our experiments reveal that these achieve high accuracy, even in the absence of explicit number-theoretic tools like functional equations $L$-functions. also present partial interpretability findings.

Sugarcane is primarily propagated for large-scale agricultural production through vegetative reproduction by planting stem cuttings. Development of sprout and sett root from the cuttings essential sugarcane plant to adapt field environment. We observed asynchronous development during sprouting in two sibling cultivars sharing same parent cross breeding: axillary buds cultivar ZZ2 (ZZ2B) earlier, while roots ZZ9 (ZZ9R) emerge sooner. Comparison architecture, soluble sugar content, hormone...

Purpose The purpose of this paper is to provide the high-pass (HP) negative group delay (NGD) circuit based (RL) network. Synthesis and experimental investigation HP-NGD are developed. Design/methodology/approach research work methodology organized in three phases. definition ideal specifications introduced. synthesis method allowing determine RL elements validation results discussed with comparison between calculated model, simulation measurement. Findings This shows a theory responses...

An array with large element spacing is designed for wide scanning. The to suppress the grating lobe by combining two radiation modes. modes are <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$\mathrm{T}{\mathrm{E}_{\boldsymbol{1}\delta 1}}$</tex-math></inline-formula> mode of a square dielectric resonator antenna (DRA) and TM <sub xmlns:xlink="http://www.w3.org/1999/xlink">011</sub> monopole. proper phase...

Up to now, most researchers have been paying attention the negative transfer of mother tongue second language writing. Few studies, if any, touched upon positive transfer. Therefore, purpose this study is investigate Chinese 26 first-year university students’ English writing holistically and segmentally in use words, grammar, coherence, content organization. The result Pearson correlation coefficient turned out be 0.43 at 5% significance level, indicating a relationship between...

A novel wideband self-decoupled loop-coupled antenna element is proposed for the fifth-generation (5G) multiple-input multiple-output (MIMO) smartphones. The generates two resonance modes of 0.75 and 1 λ. With help these modes, a wide bandwidth achieved. performance realized by loading loop with coupled lines. common/differential mode theory used to analyze guide design clarify self-decoupling principle. At same time, miniaturization also studied. provides good isolation...

In multipath environments, multiple-input multiple-output (MIMO) terminals typically suffer from non-zero correlations due to limited handset space and power imbalances different antenna efficiencies or partial hand blockage. These antenna–channel impairments can lead significant throughput performance degradation of MIMO terminals. The multiplexing efficiency was proposed quantitatively assess this degradation. Previous work only derived the analytical expression throughput-based two-port...

Abstract Point‐to‐point (P2P) flexible transceivers are the key technical enabler to cost‐effectively offer fast, dynamic, and ‘just‐the‐right‐size’ ultra‐dense P2P connectivity for various applications including remote equipment control distributed fibre networks. However, existing originally designed hub‐and‐spoke traffic patterns sub‐optimal. To effectively address such issue, a transceiver incorporating cascaded inverse fast fourier transform/fast transform‐based multi‐channel...

Abstract The disc cutter, which is essential to pipe-jacking break rock, the main tool used in this crucial method of tunnel building. present research focused on force cutter and how well it breaks rock. This paper uses medium-weathered granite Xinjing Mountain Substation - Beifeng as an example study effects penetration cutting speed rock-breaking efficiency cutter. It does by using ABAQUS analyze cutter’s operating state under various speeds find ideal efficiency. findings demonstrate...

The exploration of Internet-of-things has led to widespread short-range multiple-input multiple-output (MIMO) communications. However, traditional throughput models, limited by the far-field propagation assumptions, often fail accurately evaluate spatial multiplexing capability and performance in line-of-sight (LOS) scenarios. Against this backdrop, letter reveals limitations conventional plane wave model (PWM) based from perspective effective degree freedom (EDOF) develops a MIMO for LOS...

We train machine learning models to predict the order of Shafarevich-Tate group an elliptic curve over $\mathbb{Q}$. Building on earlier work He, Lee, and Oliver, we show that a feed-forward neural network classifier trained subsets invariants arising in Birch--Swinnerton-Dyer conjectural formula yields higher accuracies ($> 0.9$) than any model previously studied. In addition, develop regression may be used orders this not seen during training apply rank 29 recently discovered by Elkies...

The throughput performance of the multipleinput multiple-output (MIMO) system is often affected by antenna imperfections (power imbalance and correlation), especially at mobile station side. In this paper, original model extended so that it can be used in systems adaptively change modulation coding scheme (MCS) data streams (layers) according to channel quality. addition, derived multiplexing efficiency (ME) previous work only applicable evaluation peak with fixed MCS number layers. A mean...

Cascaded inverse fast Fourier transform/fast transform (IFFT/FFT)-based multi-channel aggregation/de-aggregation offers a promising solution in constructing highly desirable flexible optical transceivers for considerably improving networks' elasticity, flexibility, and adaptability. However, the aggregation operation unavoidably results generated signals having high peak-to-average power ratios (PAPRs). To solve this technical challenge, paper first explores PAPR characteristics of...

Throughput modeling in multiple-input multiple-output (MIMO) systems has attracted widespread attentions. Nevertheless, the current throughput model is confined to case of fixed data streams (layers) and modulation coding scheme (MCS). In proposed study, we expand conventional based on transmit selection diversity threshold translation mapping techniques enable its use systems, where MCS layers are adaptively modified depending channel quality. Excellent agreement between simulation...

The deposition process for Be atoms on substrate is studied using molecular dynamic simulations. morphologies of the deposited films are distinctly different under incident energies. In a specified range, surface roughness film decreases with increase energy. However, over-high energy unfavourable reducing film. distributions coordination numbers and potential single atom used to analyze structure With bigger density distribution more continuous. At same time, atomic stress Finally,...