Search Results - Weiwei Chen

In-bed posture classification plays a crucial role in health monitoring. In this paper, we explore in-bed posture classification using FT-Transformer, a model that employs 1D tabular inputs instead of the commonly used 2D pressure heatmaps. However, the Feature Tokenizer in FT-Transformer suffers fr...

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In-bed posture classification plays a crucial role in health monitoring. However, existing research on classification involves a limited range of in-bed postures. Meanwhile, in classification tasks, Kolmogorov–Arnold networks (KANs), as an emerging neural network architecture, have research gaps in...

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An electrically controlled metaswitch is demonstrated by integrating passive metamaterial (metallic-slot array) with well-established nonvolatile flash memory technology [floating-gate (FG) structure]. In this hybrid configuration, the metamaterial acts as its control-gate layer while a monolayer gr...

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The escalating demand for high-performance and energy-efficient electronics has propelled 3D integrated circuits (3D ICs) as a promising solution. However, major obstacles have been the lack of specialized electronic design automation (EDA) software and standardized design flows for 3D chiplets. To...

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BackgroundDeep vein thrombosis (DVT) is the third most common cardiovascular disorder and can lead to high mortality and morbidity. This study aimed to clarify the molecular and immune characteristics of circular RNAs (circRNAs) and messenger RNAs (mRNAs) in DVT progression.MethodsDVT-associated dat...

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The increasing rate of community-associated Staphylococcus aureus (CA-SA) worldwide has aroused global public concern for decades. Although ST121 clone is one of the prevalent CA-SA in China, there is still limited knowledge about it. In this study, we conducted a genomic analysis of 28 CA-SA ST121...

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In this paper, a compact integrated flexible-grid 1 × 2 wavelength-selective switch is proposed. The device is designed by utilizing a structure with nine reconfigurable add-drop silicon microring resonators. Using thermal tuning, the transmission spectra of silicon microring resonators a...

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ABSTRACT Gut microbiota dysbiosis critically contributes to colitis-associated colorectal cancer (CAC) pathogenesis, positioning microbial modulation as a promising therapeutic strategy. Weissella cibaria (W. cibaria) is an emerging probiotic with potential cancer-inhibiting effects. This study inve...

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AimsSodium-glucose co-transporter 2 (SGLT2) inhibitors are novel oral hypoglycemic agents strongly endorsed in the treatment guidelines for heart failure due to their cardioprotective benefits. However, their specific impact of SGLT2 inhibitors on arrhythmias incompletely understood. This systematic...

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Objective: To evaluate the prognosis of benign ovarian tumors and develop a postoperative surveillance strategy for children based on the findings. Methods: The clinical data of children with benign ovarian tumors treated in the hospital from January 2014 to December 2021 were retrospectively analyz...

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Interferon regulatory factor 4 (IRF4) is a critical transcription factor that governs the differentiation of cluster of differentiation 4+ (CD4+) T cells. The pathogenesis and progression of psoriasis are primarily attributed to an immune imbalance stemming from the overproduction of interleukin-17A...

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In this paper, a plasmonic Feynman gate based on suspended graphene nano-ribbon waveguides at THz wavelengths is proposed and numerically investigated. The proposed plasmonic Feynman gate is composed of two cascaded microring resonators. The resonant states of microring resonators are flexibly contr...

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In this paper, a design of a silicon mode (de)multiplexer based on cascaded counter-tapered couplers is proposed and investigated. By using the particle swarm optimization algorithm and finite difference time domain method, structural parameters of each counter-tapered coupler in our proposed mode (...

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Ogura cytoplasmic male sterility (Ogura CMS) was first identified in wild radish (Raphanus sativus) and resulted in complete pollen abortion. However, the molecular mechanism of Ogura CMS in Chinese cabbage remains unclear. A cytological analysis confirmed nuclear degradation during the late uninucl...

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A switchable polarization beam splitter utilizing GST-on-silicon waveguides is introduced and comprehensively investigated in this paper. Based on the phase matching and mode hybridization, structural parameters of the presented device are optimized by using the particle swarm optimization algorithm...

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Elderly individuals infected with SARS-CoV-2 are at higher risk of developing cytokine storms and severe outcomes, yet specific biomarkers remain unclear. In this study, we investigated the alteration of primary bile acid metabolism in elderly patients with severe COVID-19 using untargeted metabolom...

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PurposePortable metabolic systems are used as the “gold standard” for measuring energy expenditure (EE) in the development and validation of wearable devices. This study aimed to compare EE measurements obtained using the COSMED K5 (K5) and CORTEX METAMAX 3B (M3B) during the resting state and submax...

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