Danh mục: Story

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...

Abstract An efficient and innovative method is presented for the stress-related structural topology optimization (TO) in coupled mechanical-pressure systems by leveraging flexible polygonal meshes. With a polytopal composite finite element approach, the volumetric locking in nearly incompressible materials is reduced. A fluid-flow-based model is built, in which a design-dependent pressure variable is introduced to capture...

Abstract In recent years, the development of low-cost and flexible optoelectronic devices with minimal chemical usage has attracted increasing attention for sustainable development. This study introduces our development of a flexible visible photodetector based on a nanohybrid of copper oxide nanoflakes (2D-CuO) and reduced graphene oxide thin film (rGO), using just five initial materials. Particularly,...