Thẻ: SDG9-Công nghệ – sáng tạo và phát triển hạ tầng

Abstract Temporal knowledge graphs (TKGs) represent real-world facts evolving over time by incorporating the multirelational structure of knowledge graphs with temporal dimensions. While extensions of graph convolutional networks, such as relational and composition-based variants, have demonstrated strong capabilities in modeling graph-structured data, effectively capturing both symmetric and asymmetric relational dependencies, their application to TKG reasoning...

Abstract  Transition-metal oxide memristors are promising for neuromorphic computing, yet most SPICE models overlook material-specific effects such as oxygen stoichiometry and non-pinched hysteresis. Here, we systematically study CrOx/TiOy memristors fabricated under controlled oxygen concentrations (10%–50%) and propose an improved SPICE-compatible model. The devices exhibit oxygen-dependent resistive switching, retention, and pulse-driven plasticity, with optimal performance at 40%...

Abstract The mechanism of thermally enhanced luminescence (TEL), such as thermally activated delayed fluorescence (TADF) and thermally stimulated delayed phosphorescence (TSDP), is of fundamental importance in the molecular design of emissive transition-metal complexes, as it can enable bright emission with enhanced radiative rate for high-performance organic light-emitting diodes (OLEDs). It is essential to resolve the...

Abstract Social media has emerged as a prominent factor in shaping public perceptions. However, significant gaps remain in our understanding of the complex interplay between social media and human-nature relationships, including for mangrove ecosystems. We assessed how mangroves have been discussed and perceived on social media by analysing 649,495 Twitter/X posts between 2010 and 2022....

Abstract The current paradigm of plasmon-enhanced up-conversion photoluminescence (PE-UCPL) lays in intimate coupling domains of noble metal and lanthanide-doped nanoparticles. An increase of incident electromagnetic field and radiative emission rates is the key reason for the UCPL enhancement by the primitive plasmonic architectures of metal nanospheres/nanorods/nanoshells. Based on the hypothesis of precise tuning surface plasmon...

Abstract Ethnobotanical relevance Morus alba L. has been reported to exhibit various pharmacological effects, including antipyretic, hepatoprotective, nephroprotective, antihypertensive, and anti-inflammatory activities, as well as benefits for sore throat relief and eyesight improvement in traditional medicine. Aim of the study This study investigates the anti-inflammatory potential of two prenylated flavonoids isolated from the twigs of Morus...

Abstract Fine particulate-bound mercury (PBM2.5) is being recognized as a public health and environmental issue owing to its high capacity to bioaccumulate and long-range transport. This study investigates PBM2.5 at two urban sites Nguyen Van Cu (NVC) and Linh Trung (LT) and one rural site Can Gio (CG) in Ho Chi Minh City (HCMC) to assess...

Abstract This study presents a hardware countermeasure that integrates two distinct types of random number generators. Recently, several effective time-based countermeasures against side-channel analysis (SCA) have relied on FPGA-specific primitives, such as Xilinx Digital Clock Managers (DCM) and Mixed-Mode Clock Managers (MMCM). However, these solutions lack portability to ASIC platforms. To address this, we propose...

Abstract The Tam Ky–Phuoc Son Ocean in Central Vietnam, a southern branch of the Prototethyan Ocean, holds critical evidence of Early Paleozoic subduction processes in Southeast Asia. However, the polarity and tectonic evolution of its subduction system remain controversial. Here we present new petrographic observations, zircon U-Pb geochronology, in situ zircon Hf isotopes and whole-rock...