Abstract In this work, a novel platform for surface-enhanced Raman spectroscopy (SERS)-based chemical sensors utilizing three-dimensional microporous graphene foam (GF) decorated with silver nanoparticles (AgNPs) is developed and applied methylene blue (MB) detection. The results demonstrate that significantly enhance cascaded amplification of SERS effect on multilayer (GF). enhancement factor AgNPs/GF sensor found to be four orders magnitude larger than AgNPs/Si substrate. addition, the...

This paper presents the first multiobjective microarchitectural floorplanning algorithm for high-performance processors implemented in two-dimensional (2-D) and three-dimensional (3-D) ICs. The floorplanner takes a netlist determines dimension as well placement of functional modules into single- or multiple-device layers while simultaneously achieving high performance thermal reliability. traditional design objectives such area wirelength are also considered. 3-D considers following...

Mobility and ambient conditions are key factors in urban environments, affecting well-being quality of life. In this context, sensors, smart mobility, networks, connectivity can play a significant strategic role, being exploited with the aim improving data information available to public administration each citizen. way, they be supported having more sustainable aware behaviours getting useful services, their daily activities. paper, we present prototype bike eco-system, designed collecting,...

We propose a method for early fire detection based on the Lucas-Kanade optical flow algorithm that is able to detect in real time video stream from monocular camera. The works both indoors and open areas. It detects at beginning of burning process, enabling an earlier response than would be possible with conventional detector. performs background subtraction identify moving pixels scene then filters colors consistent fire. Growth rate analysis applied contours identified previous step....

Road accidents are one of the major causes human deaths. Among different types road accidents, motorcycle common and cause severe injuries. The helmet is motorcyclist's main protection. Most countries require use helmets by motorcyclists, but many people fail to obey law for various reasons. We present development a system using image processing deep convolutional neural networks (CNNs) finding motorcyclists who violating laws. comprises detection, vs. no-helmet classification, license plate...

Background: Thyroid nodules are commonly identified through ultrasound imaging, which plays a crucial role in the early detection of malignancy. The diagnostic accuracy, however, is significantly influenced by expertise radiologists, quality equipment, and image acquisition techniques. This variability underscores critical need for computational tools that support diagnosis. Methods: retrospective study evaluates an artificial intelligence (AI)-driven system thyroid nodule assessment,...

Through automated agricultural inspection, farmers can potentially achieve better productivity and accurately predict yields crop quality. A variety of sensors be used for but the cheapest most information-rich is video camera. We collect data in field from a monocular camera fixed to mobile inspection platform. For purposes pineapple mapping yield prediction, we propose an image processing framework in-field fruit detection, tracking, 3D reconstruction. perform series experiments on feature...

As process technology migrates to deep submicron with feature size less than 100nm, global wire delay is becoming a major hindrance in keeping the latency of intra-chip communication within single cycle, thus decaying performance scalability substantially. An effective floorplanning algorithm can no longer ignore information dynamic patterns applications. In this paper, using profile acquired at architecture/microarchitecture level, we propose "profile-guided microarchitectural floorplanner"...

In this work, an ultra-sensitive and highly-specific electrochemical immunosensor was developed based on three-dimensional graphene/nickel foam (GF) decorated with gold nanoparticles (AuNPs) for the detection of Neutrophil Gelatinase-Associated Lipocalin (NGAL), a biomarker Acute Kidney Injury (AKI). A low NGAL limit (LOD) 42 pg/ml linear range (LR) 0.05–210 ng/ml were achieved. Though several electrode platforms have been proposed, either LOD or LR are limited each method. Our platform can...

Virtualization technology starts becoming more and widespread in the embedded space. The penalties incurred by standard software-based virtualization is pushing research towards hardware-assisted solutions. Among existing commercial off-the-shelf technologies for secure virtualization, ARM TrustZone attracting particular attention. However, it often seen with some scepticism due to dual-OS limitation of state-of-the-art This letter presents implementation a TrustZone-based hypervisor...

Virtualization has been used as the de facto technology to allow multiple operating systems (virtual machines) run on top of same hardware platform. In embedded domain, virtualization research focused coexistence real-time requirements with non-real-time characteristics. However, existent standard software-based solutions have shown negatively impact overall system, especially in performance, memory footprint and determinism. This work progress paper presents implementation an architecture...

Road fatality rates are very high, especially in developing and middle-income countries. One of the main causes road fatalities is not using motorcycle helmets. Active law enforcement may help increase compliance, but ubiquitous requires many police officers cause traffic jams safety issues. In this paper, we demonstrate effectiveness computer vision machine learning methods to helmet compliance through automated violation detection. The system detects riders passengers wearing helmets...

The performance of turbo-generators significantly depends on the design power turbine. In addition, thermoelectric generator can convert waste heat into another source energy. This research aims to and optimize an integrated turbo-generator for diesel engines. goal is generate electricity from vehicle exhaust gas. Electrical energy derived generators using flow, pressure, temperature gases combustion engines heat-waste. case generators, system automatically adjusts provided by inverter....

Camera system is widely used as a road traffic monitoring nowadays but if using the speed camera, an additional sensor required. In this work, we demonstrate novel method to estimate of vehicle in video without sensor. We implement two measurement models including measuring moving distance given unit time and traveling distance. To get parameters models, define four virtual intrusion lines on camera view. Then, YOLOv3, DeepSORT, GoodFeatureToTrack,and Lucas-Kanade pyramidal optical flow...

This paper introduces a compiler orchestrated prefetching system as unified framework geared toward ameliorating the gap between processing speeds and memory access latencies. We focus scope of optimization on specific subsets program dependence graph that succinctly characterize pattern both regular array-based applications irregular pointer-intensive programs. illustrate how embedded precomputation via speculative execution can accurately predict effectively prefetch future references with...

A thyroid nodule, a common abnormal growth within the gland, is often identified through ultrasound imaging of neck. These growths may be solid- or fluid-filled, and their treatment influenced by factors such as size location. The Thyroid Imaging Reporting Data System (TI-RADS) classification method that categorizes nodules into risk levels based on features size, echogenicity, margin, shape, calcification. It guides clinicians in deciding whether biopsy other further evaluation needed....

In this paper, we propose two methods used in 3-D IC placement that efficiently exploit the die-to-die thermal coupling stack. First, through-silicon vias (TSVs) are spread on each die to reduce local power density and vertically aligned across dies simultaneously increase conductivity heatsink. Second, move high-power logic cells location has higher heatsink while moving TSVs upper so overlapping below TSVs. These employed a force-directed successfully outperform several state-of-the-art...

This paper aims to optimise the vibration frequency that produces highest temperature difference between crack location and non-defect location. The optimisation was based on thermoelastic damping analysis, analytical frequencies were varied 10 Hz 100 kHz. result of 20 kHz for this study. In experiments, effects amplitude studied. experimental 4.7, 20, 24 28 piezoelectric disc used as a sensor measure Then, measured amplitudes read in terms output voltage from 2, 4, 6 Vrms. maximum locations...

In the new Internet of Things (IoT) era, embedded Field-Programmable Gate Array (FPGA) technology is enabling deployment custom-tailored IoT solutions for handling different application requirements and workloads. Combined with open RISC-V Instruction Set Architecture (ISA), FPGA provides endless opportunities to create reconfigurable devices accelerators coprocessors tightly loosely coupled processor. When connecting Internet, secure communications data exchange are major concerns. However,...