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Articles by Jiewei Chen
A clinically-oriented foundation model for intraoperative pathology
Abstract Intraoperative pathology is pivotal to precision surgery, yet its clinical impact is constrained by diagnostic complexity and the limited availability of high-quality frozen-section data. While computational pathology has made significant strides, the lack of large-scale, prospective validation has impeded its routine adoption in surgical workflows.
Single-crystalline CoSi semimetals with high conductivity and reliability
Abstract As the size of state-of-the-art copper interconnects shrinks to the nanoscale, carrier scattering greatly increases their resistance, causing signal delay and reliability issues. Alternative conductors are therefore needed to sustain interconnect scaling beyond conventional charge-transport mechanisms. Here we demonstrate CoSi semimetal for highly scalable, conductive and reliable interconnects.
Growth of rhombohedral-stacked single-crystal WS2/MoS2 vertical heterostructures - Nature Communications
Abstract Vertical van der Waals heterostructures (vdWHs), formed through layer-by-layer stacking of two-dimensional materials, offer appealing opportunities for exploring novel physics and potential applications. However, the conventional approach of mechanical exfoliation followed by manual stacking faces significant challenges in achieving atomically clean interfaces and large size, severely limiting practical applications.
Horn‐Inspired Hierarchical Tubular Composites for Recoverable High‐Energy Absorption
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Fabrication and characterization of optoelectronic in-sensor computing devices - Nature Protocols
Abstract Bioinspired in-sensor computing devices can process information at sensory terminals by leveraging physical principles, thereby reducing latency and energy consumption during computation while simultaneously enhancing the efficiency of data processing and real-time analysis.
AxSpA joint tissue is characterised by HLA-DR+ tissue resident memory (TRM) and killer cell immunoglobulin-like receptor (KIR)+ CD8+ T cell subsets
Abstract Objective: Axial Spondyloarthritis (AxSpA) is a common inflammatory arthritis with HLA-B*27 as the major genetic risk. Recent discoveries of AxSpA-specific T cell receptor (TCR) motifs and the self and bacterial peptides that they recognize support a pathogenic role of CD8+ T cells. Despite of previous work on synovial fluid, the characteristics of CD8 cells in joint tissue are currently unknown.
Adaptive Quantization Mechanism for Federated Learning Models Based on DAG Blockchain
1. Introduction With the deep integration of internet of things (IoT) technology and the power grid, the intelligent development of power IoT has gradually attracted people’s attention. Coordinated scheduling between the power generation side, user side, and distribution network is the key to the development of power systems. The scenarios include intelligent inspection, power load forecasting, and demand-side response.
TRIM29 acts as a potential senescence suppressor with epigenetic activation in nasopharyngeal carcinoma
ORIGINAL ARTICLE Caifeng Yue, Yuanmin Qian, and Chang Wang contributed equally to this work. Abstract Epigenetic alterations marked by DNA methylation are frequent events during the early development of nasopharyngeal carcinoma (NPC). We identified that TRIM29 is hypomethylated and overexpressed in NPC cell lines and tissues. TRIM29 silencing not only limited the growth of NPC cells in vitro and in vivo, but also induced cellular senescence, along with reactive oxygen species (ROS) accumulation.
Optoelectronic graded neurons for bioinspired in-sensor motion perception - Nature Nanotechnology
Abstract Motion processing has proven to be a computational challenge and demands considerable computational resources. Contrast this with the fact that flying insects can agilely perceive real-world motion with their tiny vision system. Here we show that phototransistor arrays can directly perceive different types of motion at sensory terminals, emulating the non-spiking graded neurons of insect vision systems.
An in-memory computing architecture based on a duplex two-dimensional material structure for in situ machine learning - Nature Nanotechnology
Abstract The growing computational demand in artificial intelligence calls for hardware solutions that are capable of in situ machine learning, where both training and inference are performed by edge computation. This not only requires extremely energy-efficient architecture (such as in-memory computing) but also memory hardware with tunable properties to simultaneously meet the demand for training and inference.
A Truthful and Reliable Incentive Mechanism for Federated Learning Based on Reputation Mechanism and Reverse Auction
Abstract : As a distributed machine learning paradigm, federated learning (FL) enables participating clients to share only model gradients instead of local data and achieves the secure sharing of private data. However, the lack of clients’ willingness to participate in FL and the malicious influence of unreliable clients both seriously degrade the performance of FL.
Room-temperature valley transistors for low-power neuromorphic computing - Nature Communications
Device fabrication We prepared Te flakes by hydrothermal methods32 and transferred them to a Si substrate with 300 nm thick SiO2. The thickness of Te flakes is more than 10 nm, which can retain the band structure similar to bulk Te and exhibit magnetotransport signatures of the Weyl point51. Electron beam lithography was used to define the pattern of metal electrodes in a Hall bar configuration with a side gate.
Field‐Effect Chiral Anomaly Devices with Dirac Semimetal
Research Article Jiewei Chen, Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China Search for more papers by this author Ting Zhang, Department of Physics, Hong Kong University of Science and Technology, Hong Kong, P. R. China Institute of Advanced Study, Hong Kong University of Science and Technology, Hong Kong, P. R.
Erratum to “α4 contributes to bladder urothelial carcinoma cell invasion and/or metastasis via regulation of E-cadherin and is a predictor of outcome in bladder urothelial carcinoma patients” [Eur J Canc 50 (2014) 840-851] - European Journal of Cancer
Jianye Liu 1 Author Footnotes 1 These authors contributed equally to this work. Jianye Liu Footnotes 1 These authors contributed equally to this work.
Optoelectronic resistive random access memory for neuromorphic vision sensors
Abstract Neuromorphic visual systems have considerable potential to emulate basic functions of the human visual system even beyond the visible light region. However, the complex circuitry of artificial visual systems based on conventional image sensors, memory and processing units presents serious challenges in terms of device integration and power consumption.
Metal-Catalyst-Free Access to Multiwall Carbon Nanotubes/Silica Nanocomposites (MWCNT/SiO2) from a Single-Source Precursor
Metal-Catalyst-Free Access to Multiwall Carbon Nanotubes/Silica Nanocomposites (MWCNT/SiO2) from a Single-Source Precursor Gabriela Mera, Peter Kroll, Ilia Ponomarev, Jiewei Chen, Koji Morita, Moritz Liesegang, Emanuel Ionescu and Alexandra Navrotsky Abstract The present study introduces a facile single-source precursor preparative access to bamboo-like multiwalled carbon nanotubes (MWCNTs) highly dispersed within a mesoporous silica-rich matrix.
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