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Experimental Validation of Metaheuristic and Conventional Modulation, and Hysteresis Control of the Dual Boost Nine-Level Inverter Electronics (IF 2.412) Pub Date : 2021-01-18 Deepak Upadhyay; Shahbaz Ahmad Khan; Mohammad Ali; Mohd Tariq; Adil Sarwar; Ripon K. Chakrabortty; Michael J. Ryan
In this article, various modulation strategies and hysteresis-band control of a recently introduced dual-boost nine-level inverter (DB9LI) are implemented. DB9LI is a switched capacitor based inverter capable of generating symmetrical nine output voltage levels by employing a single DC source. The topology generates a boosted bipolar voltage at the output side without applying end-side H-bridge (usually
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Latencies in Power Systems: A Database-Based Time-Delay Compensation for Memory Controllers Electronics (IF 2.412) Pub Date : 2021-01-18 Alexander Molina-Cabrera; Mario A. Ríos; Yvon Besanger; Nouredine Hadjsaid; Oscar Danilo Montoya
Time-delay is inherent to communications schemes in power systems, and in a closed loop strategy the presence of latencies increases inter-area oscillations and security problems in tie-lines. Recently, Wide Area Measurement Systems (WAMS) have been introduced to improve observability and overcome slow-rate communications from traditional Supervisory Control and Data Acquisition (SCADA). However, there
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Bi-Objective Workflow Scheduling on Heterogeneous Computing Systems Using a Memetic Algorithm Electronics (IF 2.412) Pub Date : 2021-01-18 Yujian Zhang; Fei Tong; Chuanyou Li; Yuwei Xu
Due to the high power bills and the negative environmental impacts, workflow scheduling with energy consciousness has been an emerging need for modern heterogeneous computing systems. A number of approaches have been developed to find suboptimal schedules through heuristics by means of slack reclamation or trade-off functions. In this article, a memetic algorithm for energy-efficient workflow scheduling
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Constant Envelope Multiplexing of Multi-Carrier DSSS Signals Considering Sub-Carrier Frequency Constraint Electronics (IF 2.412) Pub Date : 2021-01-18 Xiaofei Chen; Xiaochun Lu; Xue Wang; Jing Ke; Xia Guo
With the development of global navigation satellite systems (GNSS), multiple signals modulated on different sub-carriers are needed to provide various services and to ensure compatibility with previous signals. As an effective method to provide diversified signals without introducing the nonlinear distortion of High Power Amplifier (HPA), the multi-carrier constant envelope multiplexing is widely used
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Measurements and Computations of Internal Temperatures of the IGBT and the Diode Situated in the Common Case Electronics (IF 2.412) Pub Date : 2021-01-18 Paweł Górecki; Krzysztof Górecki
This article proposes effective methods of measurements and computations of internal temperature of the dies of the Insulted Gate Bipolar Transistor (IGBT) and the diode mounted in the common case. The nonlinear compact thermal model of the considered device is proposed. This model takes into account both self-heating phenomena in both dies and mutual thermal couplings between them. In the proposed
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Adaptive Sliding Mode Neural Network Control and Flexible Vibration Suppression of a Flexible Spatial Parallel Robot Electronics (IF 2.412) Pub Date : 2021-01-18 Qingyun Zhang; Xinhua Zhao; Liang Liu; Tengda Dai
With the goal of creating a flexible spatial parallel robot system in which the elastic deformation of the flexible link causes a rigid moving platform to produce small vibrations, we proposed an adaptive sliding mode control algorithm based on a neural network. To improve the calculation efficiency, the finite element method was used to discretize the flexible spatial link, and then the displacement
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An Optimal Digital Filtering Technique for Incremental Delta-Sigma ADCs Using Passive Integrators Electronics (IF 2.412) Pub Date : 2021-01-18 Hyunmin Park; Hyungil Chae; Jintae Kim
This paper presents an optimal digital filtering technique to enhance the resolution of incremental delta-sigma modulators (incremental DSMs, IDSMs) using a low-power passive integrator. We first describe a link between a passive integrator and its impact on the output of the IDSM. We then show that the optimal digital filter design can be cast as a convex optimization problem, which can be efficiently
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Improving the Prediction Quality in Memory-Based Collaborative Filtering Using Categorical Features Electronics (IF 2.412) Pub Date : 2021-01-18 Lei Chen; Yuyu Yuan; Jincui Yang; Ahmed Zahir
Despite years of evolution of recommender systems, improving prediction accuracy remains one of the core problems among researchers and industry. It is common to use side information to bolster the accuracy of recommender systems. In this work, we focus on using item categories, specifically movie genres, to improve the prediction accuracy as well as coverage, precision, and recall. We derive the user’s
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Novel Dual Beam Cascaded Schemes for 346 GHz Harmonic-Enhanced TWTs Electronics (IF 2.412) Pub Date : 2021-01-16 Ruifeng Zhang; Qi Wang; Difu Deng; Yao Dong; Fei Xiao; Gil Travish; Huarong Gong
The applications of terahertz (THz) devices in communication, imaging, and plasma diagnostic are limited by the lack of high-power, miniature, and low-cost THz sources. To develop high-power THz source, the high-harmonic traveling wave tube (HHTWT) is introduced, which is based on the theory that electron beam modulated by electromagnetic (EM) waves can generate high harmonic signals. The principal
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Robust Adaptive Filtering Algorithm for Self-Interference Cancellation with Impulsive Noise Electronics (IF 2.412) Pub Date : 2021-01-16 Jun Lu; Qunfei Zhang; Wentao Shi; Lingling Zhang; Juan Shi
Self-interference (SI) is usually generated by the simultaneous transmission and reception in the same system, and the variable SI channel and impulsive noise make it difficult to eliminate. Therefore, this paper proposes an adaptive digital SI cancellation algorithm, which is an improved normalized sub-band adaptive filtering (NSAF) algorithm based on the sparsity of the SI channel and the arctangent
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Examination of Abnormal Behavior Detection Based on Improved YOLOv3 Electronics (IF 2.412) Pub Date : 2021-01-16 Meng-ting Fang; Krzysztof Przystupa; Zhong-ju Chen; Tao Li; Michal Majka; Orest Kochan
Examination is a way to select talents, and a perfect invigilation strategy can improve the fairness of the examination. To realize the automatic detection of abnormal behavior in the examination room, the method based on the improved YOLOv3 (The third version of the You Only Look Once algorithm) algorithm is proposed. The YOLOv3 algorithm is improved by using the K-Means algorithm, GIoUloss, focal
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Mobile-Based Sensing Scheme to Minimize Battery Power Consumption for Urban Monitoring Systems Electronics (IF 2.412) Pub Date : 2021-01-16 Sang-Hoon Lee; Taehun Yang; Tae-Sung Kim
In urban monitoring systems, mobile sensing is imperative to acquire data from sensors and relay them to a cloud server. Mobile devices can be used anytime and anywhere, enabling communication with pervasive sensing in various conditions to obtain the data. Reliable data acquisition has been required in urban monitoring systems from the macroscale to the microscale. However, a broadcast method for
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Sentiment Level Evaluation of 3D Handicraft Products Application for Smartphones Usage Electronics (IF 2.412) Pub Date : 2021-01-16 Natinai Jinsakul; Cheng-Fa Tsai; Paohsi Wang
Three-dimensional (3D) technology has attracted users’ attention because it creates objects that can interact with a given product in a system. Nowadays, Thailand’s government encourages sustainability projects through advertising, trade shows and information systems for small rural entrepreneurship. However, the government’s systems do not include virtual products with a 3D display. The objective
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Influence of Active Channel Layer Thickness on SnO2 Thin-Film Transistor Performance Electronics (IF 2.412) Pub Date : 2021-01-17 Do Won Kim; Hyeon Joong Kim; Changmin Lee; Kyoungdu Kim; Jin-Hyuk Bae; In-Man Kang; Jaewon Jang
Sol-gel processed SnO2 thin-film transistors (TFTs) were fabricated on SiO2/p+ Si substrates. The SnO2 active channel layer was deposited by the sol-gel spin coating method. Precursor concentration influenced the film thickness and surface roughness. As the concentration of the precursor was increased, the deposited films were thicker and smoother. The device performance was influenced by the thickness
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A Non-Linear Convolution Network for Image Processing Electronics (IF 2.412) Pub Date : 2021-01-17 Stefano Marsi; Jhilik Bhattacharya; Romina Molina; Giovanni Ramponi
This paper proposes a new neural network structure for image processing whose convolutional layers, instead of using kernels with fixed coefficients, use space-variant coefficients. The adoption of this strategy allows the system to adapt its behavior according to the spatial characteristics of the input data. This type of layers performs, as we demonstrate, a non-linear transfer function. The features
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NDF of Scattered Fields for Strip Geometries Electronics (IF 2.412) Pub Date : 2021-01-17 Ehsan Akbari Sekehravani; Giovanni Leone; Rocco Pierri
Solving inverse scattering problems by numerical methods requires investigating the number of independent pieces of information that can be reconstructed stably. To this end, we address the evaluation of the Number of Degrees of Freedom (NDF) of far-zone scattered fields for some strip geometries under the first-order Born approximation. The analysis is performed by employing the Singular Value Decomposition
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Full Digital Control of an All-Si On-Board Charger Operating in Discontinuous Conduction Mode Electronics (IF 2.412) Pub Date : 2021-01-17 Davide Cittanti; Matteo Gregorio; Fabio Mandrile; Radu Bojoi
This paper deals with the design, tuning and implementation of a digital controller for an all-Si electric vehicle (EV) on-board battery charger operated in discontinuous conduction mode (DCM). This charger consists of two cascaded conversion stages: a front-end power factor corrector (PFC) with two interleaved legs and an isolated phase-shifted full bridge DC/DC converter. Both stages operate in DCM
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Algorithmic-Level Approximate Tensorial SVM Using High-Level Synthesis on FPGA Electronics (IF 2.412) Pub Date : 2021-01-17 Hamoud Younes; Ali Ibrahim; Mostafa Rizk; Maurizio Valle
Approximate Computing Techniques (ACT) are promising solutions towards the achievement of reduced energy, time latency and hardware size for embedded implementations of machine learning algorithms. In this paper, we present the first FPGA implementation of an approximate tensorial Support Vector Machine (SVM) classifier with algorithmic level ACTs using High-Level Synthesis (HLS). A touch modality
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An MPPT Strategy Based on a Surface-Based Polynomial Fitting for Solar Photovoltaic Systems Using Real-Time Hardware Electronics (IF 2.412) Pub Date : 2021-01-17 Catalina González-Castaño; Leandro L. Lorente-Leyva; Javier Muñoz; Carlos Restrepo; Diego H. Peluffo-Ordóñez
This paper presents an optimal design of a surface-based polynomial fitting for tracking the maximum power point (MPPT) of a photovoltaic (PV) system, here named surface-based polynomial fitting (MPPT-SPF). The procedure of the proposed MPPT-SPF strategy is based on a polynomial model to characterize data from the PV module with a global fit. The advantage of using polynomials is that they provide
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Autonomous Operation Control of IoT Blockchain Networks Electronics (IF 2.412) Pub Date : 2021-01-17 Jae-Hoon Kim; Seungchul Lee; Sengphil Hong
Internet of Things (IoT) networks are typically composed of many sensors and actuators. The operation controls for robots in smart factories or drones produce a massive volume of data that requires high reliability. A blockchain architecture can be used to build highly reliable IoT networks. The shared ledger and open data validation among users guarantee extremely high data security. However, current
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A Fast Lock All-Digital MDLL Using a Cyclic Vernier TDC for Burst-Mode Links Electronics (IF 2.412) Pub Date : 2021-01-15 Dongjun Park; Sungwook Choi; Jongsun Kim
An all-digital multiplying delay-locked loop (MDLL)-based clock multiplier featuring a time-to-digital converter (TDC) to achieve fast power-on capability is presented. The proposed MDLL adopts a new offset-free cyclic Vernier TDC to achieve a fast lock time of 15 reference clock cycles while maintaining a wide detection range and high resolution. The proposed offset-free TDC also uses a correlated
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ESD Design and Analysis by Drain Electrode-Embedded Horizontal Schottky Elements for HV nLDMOSs Electronics (IF 2.412) Pub Date : 2021-01-15 Shi-Zhe Hong; Shen-Li Chen
Electrostatic discharge (ESD) events can severely damage miniature components. Therefore, ESD protection is critical in integrated circuits. In this study, drain-electrode-embedded horizontal Schottky diode contact modulation and Schottky length reduction modulation were performed on a high-voltage 60-V n-channel laterally diffused metal-oxide–semiconductor transistor (nLDMOS) element. The effect of
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Empirical Analysis of Rank Aggregation-Based Multi-Filter Feature Selection Methods in Software Defect Prediction Electronics (IF 2.412) Pub Date : 2021-01-15 Abdullateef O. Balogun; Shuib Basri; Saipunidzam Mahamad; Said Jadid Abdulkadir; Luiz Fernando Capretz; Abdullahi A. Imam; Malek A. Almomani; Victor E. Adeyemo; Ganesh Kumar
Selecting the most suitable filter method that will produce a subset of features with the best performance remains an open problem that is known as filter rank selection problem. A viable solution to this problem is to independently apply a mixture of filter methods and evaluate the results. This study proposes novel rank aggregation-based multi-filter feature selection (FS) methods to address high
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Device and Circuit Exploration of Multi-Nanosheet Transistor for Sub-3 nm Technology Node Electronics (IF 2.412) Pub Date : 2021-01-15 Yoongeun Seon; Jeesoo Chang; Changhyun Yoo; Jongwook Jeon
A multi-nanosheet field-effect transistor (mNS-FET) device was developed to maximize gate controllability while making the channel in the form of a sheet. The mNS-FET has superior gate controllability for the stacked channels; consequently, it can significantly reduce the short-channel effect (SCE); however, punch-through inevitably occurs in the bottom channel portion that is not surrounded by gates
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Design and Implementation of Deep Learning Based Contactless Authentication System Using Hand Gestures Electronics (IF 2.412) Pub Date : 2021-01-15 Aveen Dayal; Naveen Paluru; Linga Reddy Cenkeramaddi; Soumya J.; Phaneendra K. Yalavarthy
Hand gestures based sign language digits have several contactless applications. Applications include communication for impaired people, such as elderly and disabled people, health-care applications, automotive user interfaces, and security and surveillance. This work presents the design and implementation of a complete end-to-end deep learning based edge computing system that can verify a user contactlessly
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Memristors as Candidates for Replacing Digital Potentiometers in Electric Circuits Electronics (IF 2.412) Pub Date : 2021-01-15 Ivo Marković; Milka Potrebić; Dejan Tošić
Digital potentiometers are substantial components for the design of many mixed-signal electronic circuits and systems. Their capability to program resistance value almost instantly provides hardware designers an additional level of freedom. Unfortunately, this feature is limited to DC and lower frequencies, due to parasitic effects. Nowadays, memristors as continuously tunable resistors are becoming
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Assessment of Cable Length Limit for Effective Protection by Z-Source Circuit Breakers in DC Power Networks Electronics (IF 2.412) Pub Date : 2021-01-15 Ruiyun Fu; Sagar Bhatta; Joseph M. Keller; Yucheng Zhang
This paper introduces groundbreaking research on how to assess the cable length limit (CLL) to ensure effective protection by Z-source Circuit Breakers (ZCBs) in DC power networks. It has been revealed that the line parameters of power cables have a significant impact on the cutoff performance of ZCBs. The question of assessing the CLL has been raised as an unsolved problem. In this paper, a method
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Internet of Things (IoT) Based Indoor Air Quality Sensing and Predictive Analytic—A COVID-19 Perspective Electronics (IF 2.412) Pub Date : 2021-01-15 Rafia Mumtaz; Syed Mohammad Hassan Zaidi; Muhammad Zeeshan Shakir; Uferah Shafi; Muhammad Moeez Malik; Ayesha Haque; Sadaf Mumtaz; Syed Ali Raza Zaidi
Indoor air quality typically encompasses the ambient conditions inside buildings and public facilities that may affect both the mental and respiratory health of an individual. Until the COVID-19 outbreak, indoor air quality monitoring was not a focus area for public facilities such as shopping complexes, hospitals, banks, restaurants, educational institutes, and so forth. However, the rapid spread
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A Web-Based Tool for Simulating Molecular Dynamics in Cloud Environments Electronics (IF 2.412) Pub Date : 2021-01-15 Gonzalo Nicolas-Barreales; Aaron Sujar; Alberto Sanchez
Molecular dynamics simulations take advantage of supercomputing environments, e.g., to solve molecular systems composed of millions of atoms. Supercomputers are increasing their computing and memory power while they are becoming more complex with the introduction of Multi-GPU environments. Despite these capabilities, the molecular dynamics simulation is not an easy process. It requires properly preparing
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Android Malware Detection Based on Structural Features of the Function Call Graph Electronics (IF 2.412) Pub Date : 2021-01-15 Yang Yang; Xuehui Du; Zhi Yang; Xing Liu
The openness of Android operating system not only brings convenience to users, but also leads to the attack threat from a large number of malicious applications (apps). Thus malware detection has become the research focus in the field of mobile security. In order to solve the problem of more coarse-grained feature selection and larger feature loss of graph structure existing in the current detection
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On-Line Learning and Updating Unmanned Tracked Vehicle Dynamics Electronics (IF 2.412) Pub Date : 2021-01-15 Natalia Strawa; Dmitry I. Ignatyev; Argyrios C. Zolotas; Antonios Tsourdos
Increasing levels of autonomy impose more pronounced performance requirements for unmanned ground vehicles (UGV). Presence of model uncertainties significantly reduces a ground vehicle performance when the vehicle is traversing an unknown terrain or the vehicle inertial parameters vary due to a mission schedule or external disturbances. A comprehensive mathematical model of a skid steering tracked
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Multi-Objective Optimization of Joint Power and Admission Control in Cognitive Radio Networks Using Enhanced Swarm Intelligence Electronics (IF 2.412) Pub Date : 2021-01-15 Ayman A. El-Saleh; Tareq M. Shami; Rosdiadee Nordin; Mohamad Y. Alias; Ibraheem Shayea
The problem of joint power and admission control (JPAC) is a critical issue encountered in underlay cognitive radio networks (CRNs). Moving forward towards the realization of Fifth Generation (5G) and beyond, where optimization is envisioned to take place in multiple performance dimensions, it is crucially desirable to achieve high sum throughput with low power consumption. In this work, a multi-objective
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Design of Multi Standard Near Field Communication Outphasing Transmitter with Modulation Wave Shaping Electronics (IF 2.412) Pub Date : 2021-01-15 Žiga Korošak; Nejc Suhadolnik; Anton Pleteršek
The aim of this work is to tackle the problem of modulation wave shaping in the field of near field communication (NFC) radio frequency identification (RFID). For this purpose, a high-efficiency transmitter circuit was developed to comply with the strict requirements of the newest EMVCo and NFC Forum specifications for pulse shapes. The proposed circuit uses an outphasing modulator that is based on
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Dynamic Task Migration Combining Energy Efficiency and Load Balancing Optimization in Three-Tier UAV-Enabled Mobile Edge Computing System Electronics (IF 2.412) Pub Date : 2021-01-15 Wu Ouyang; Zhigang Chen; Jia Wu; Genghua Yu; Heng Zhang
As transportation becomes more convenient and efficient, users move faster and faster. When a user leaves the service range of the original edge server, the original edge server needs to migrate the tasks offloaded by the user to other edge servers. An effective task migration strategy needs to fully consider the location of users, the load status of edge servers, and energy consumption, which make
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An Efficient Indexing Scheme for Network Traffic Collection and Retrieval System Electronics (IF 2.412) Pub Date : 2021-01-15 Chao Jiang; Jinlin Wang; Yang Li
Historical network traffic retrieval, both at the packet and flow level, has been applied in many fields of network security, such as network traffic analysis and network forensics. To retrieve specific packets from a vast number of packet traces, it is an effective solution to build indexes for the query attributes. However, it brings challenges of storage consumption and construction time overhead
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RCVC: RSU-Aided Cluster-Based Vehicular Clouds Architecture for Urban Areas Electronics (IF 2.412) Pub Date : 2021-01-15 Mohamed Ben bezziane; Ahmed Korichi; Chaker Abdelaziz Kerrache; Mohamed el Amine Fekair
As a promising topic of research, Vehicular Cloud (VC) incorporates cloud computing and ad-hoc vehicular network (VANET). In VC, supplier vehicles provide their services to consumer vehicles in real-time. These services have a significant impact on the applications of internet access, storage and data. Due to the high-speed mobility of vehicles, users in consumer vehicles need a mechanism to discover
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A Study on the Effect of Bond Wires Lift-off on IGBT Thermal Resistance Measurement Electronics (IF 2.412) Pub Date : 2021-01-15 Dan Luo; Minyou Chen; Wei Lai; Hongjian Xia; Xueni Ding; Zhenyu Deng
Bond wire lift-off will cause an increase of remaining wires’ power dissipation, which usually is ignored for healthy modules. However, only partial wires’ power dissipation transfers through thermal path from junction to case, which will lead to overestimate the whole power dissipation from collector to emitter pole and underestimate the calculated thermal resistance using the proportion of temperature
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Active Contour Model Using Fast Fourier Transformation for Salient Object Detection Electronics (IF 2.412) Pub Date : 2021-01-15 Umer Sadiq Khan; Xingjun Zhang; Yuanqi Su
The active contour model is a comprehensive research technique used for salient object detection. Most active contour models of saliency detection are developed in the context of natural scenes, and their role with synthetic and medical images is not well investigated. Existing active contour models perform efficiently in many complexities but facing challenges on synthetic and medical images due to
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Empirical Assessment of Machine Learning Techniques for Software Requirements Risk Prediction Electronics (IF 2.412) Pub Date : 2021-01-14 Rashid Naseem; Zain Shaukat; Muhammad Irfan; Muhammad Arif Shah; Arshad Ahmad; Fazal Muhammad; Adam Glowacz; Larisa Dunai; Jose Antonino-Daviu; Adel Sulaiman
Software risk prediction is the most sensitive and crucial activity of Software Development Life Cycle (SDLC). It may lead to the success or failure of a project. The risk should be predicted earlier to make a software project successful. A model is proposed for the prediction of software requirement risks using requirement risk dataset and machine learning techniques. In addition, a comparison is
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Leveraging Machine-Learning for D2D Communications in 5G/Beyond 5G Networks Electronics (IF 2.412) Pub Date : 2021-01-14 Sherief Hashima; Basem M. ElHalawany; Kohei Hatano; Kaishun Wu; Ehab Mahmoud Mohamed
Device-to-device (D2D) communication is a promising paradigm for the fifth generation (5G) and beyond 5G (B5G) networks. Although D2D communication provides several benefits, including limited interference, energy efficiency, reduced delay, and network overhead, it faces a lot of technical challenges such as network architecture, and neighbor discovery, etc. The complexity of configuring D2D links
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Multiclass ECG Signal Analysis Using Global Average-Based 2-D Convolutional Neural Network Modeling Electronics (IF 2.412) Pub Date : 2021-01-14 Muhammad Wasimuddin; Khaled Elleithy; Abdelshakour Abuzneid; Miad Faezipour; Omar Abuzaghleh
Cardiovascular diseases have been reported to be the leading cause of mortality across the globe. Among such diseases, Myocardial Infarction (MI), also known as “heart attack”, is of main interest among researchers, as its early diagnosis can prevent life threatening cardiac conditions and potentially save human lives. Analyzing the Electrocardiogram (ECG) can provide valuable diagnostic information
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Research on Optimization Measures of Zigbee Network Connection in an Imitated Mine Fading Channel Electronics (IF 2.412) Pub Date : 2021-01-14 Yang Yang; Zhihai Liu; Yuxuan Wang; Zhenrui Dai
Based on the background of a mine, this study aimed to improve underground wireless communication. The study selected Zigbee technology from many wireless technologies as the basis, expounded the technical advantages and disadvantages, and addressed its disadvantages. First, the modulation technology of Zigbee was improved. This article selects and describes O-QPSK technology from three modulation
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Leveraging a Genetic Algorithm for the Optimal Placement of Distributed Generation and the Need for Energy Management Strategies Using a Fuzzy Inference System Electronics (IF 2.412) Pub Date : 2021-01-14 Sunny Katyara; Muhammad Fawad Shaikh; Shoaib Shaikh; Zahid Hussain Khand; Lukasz Staszewski; Veer Bhan; Abdul Majeed; Madad Ali Shah; Leonowicz Zbigniew
With the rising load demand and power losses, the equipment in the utility network often operates close to its marginal limits, creating a dire need for the installation of new Distributed Generators (DGs). Their proper placement is one of the prerequisites for fully achieving the benefits; otherwise, this may result in the worsening of their performance. This could even lead to further deterioration
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Research and Analysis of Permanent Magnet Transmission System Controls on Diesel Railway Vehicles Electronics (IF 2.412) Pub Date : 2021-01-14 Lili Kang; Dongjie Jiang; Chaoying Xia; Yongjiu Xu; Kaiyi Sun
As the energy crisis and environmental pollution continue to be a gradual threat, the energy saving of transmission systems has become the focus of railway vehicle research and design. Due to their high-power density and efficiency features, permanent magnet synchronous motors (PMSM) have been gradually applied in railway vehicles. To improve the efficiency of the transmission system of diesel railway
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How Augmented Reality Could Improve the Student’s Attraction to Learn Mechanisms Electronics (IF 2.412) Pub Date : 2021-01-14 Răzvan Gabriel Boboc; Rareș-Lucian Chiriac; Csaba Antonya
Mechanics, along with electronics, is a basic field for the development of high technologies. However, learning mechanics is not an easy task. To meet and adapt to the requirements of students in the digital age, teachers must provide them significant ways to incorporate the latest technologies and applications for their studies. In this study, we explored the application of augmented reality (AR)
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Multi-Objective Sizing Optimization of Hybrid Renewable Energy Microgrid in a Stand-Alone Marine Context Electronics (IF 2.412) Pub Date : 2021-01-14 Wenqiang Zhu; Jiang Guo; Guo Zhao
Islands are the main platforms for exploration and utilization of marine resources. In this paper, an island hybrid renewable energy microgrid devoted to a stand-alone marine application is established. The specific microgrid is composed of wind turbines, tidal current turbines, and battery storage systems considering the climate resources and precious land resources. A multi-objective sizing optimization
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A Mixed-Integer Conic Formulation for Optimal Placement and Dimensioning of DGs in DC Distribution Networks Electronics (IF 2.412) Pub Date : 2021-01-14 Federico Molina-Martin; Oscar Danilo Montoya; Luis Fernando Grisales-Noreña; Jesus C. Hernández
The problem of the optimal placement and dimensioning of constant power sources (i.e., distributed generators) in electrical direct current (DC) distribution networks has been addressed in this research from the point of view of convex optimization. The original mixed-integer nonlinear programming (MINLP) model has been transformed into a mixed-integer conic equivalent via second-order cone programming
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Fully Integrated High Gain S-Band Triangular Slot Antenna for CubeSat Communications Electronics (IF 2.412) Pub Date : 2021-01-13 Mohamed El Bakkali; Moulhime El Bekkali; Gurjot Singh Gaba; Josep M. Guerrero; Lavish Kansal; Mehedi Masud
Among other CubeSat subsystems, Antenna is one of the most important CubeSat components as its design determines all the telecommunication subsystems’ performances. This paper presents a coplanar wave-guide (CPW)-fed equilateral triangular slot antenna constructed and analyzed for CubeSat communications at S-band. The proposed antenna alone presents high gain and ultra-wide band while its radiation
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Parallel Multiphysics Simulation of Package Systems Using an Efficient Domain Decomposition Method Electronics (IF 2.412) Pub Date : 2021-01-13 Weijie Wang; Yannan Liu; Zhenguo Zhao; Haijing Zhou
With the continuing downscaling in feature sizes, the thermal impact on material properties and geometrical deformations can no longer be ignored in the analysis of the electromagnetic compatibility or electromagnetic interference of package systems, including System-in-Package and antenna arrays. We present a high-performance numerical simulation program that is intended to perform large-scale multiphysics
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A Study of Integrated Signal and Power Transfer for Compact Isolated SiC MOSFET Gate-Drivers Electronics (IF 2.412) Pub Date : 2021-01-13 Jorge Garcia; Sarah Saeed; Emre Gurpinar; Alberto Castellazzi
This work discusses a novel set of alternate implementations of isolated gate driver circuits for power electronic transistors. The proposed topologies for the driver have been designed specifically for SiC power MOSFET. Three different solutions are discussed, all of them providing the required gate turn-on and turn-off command signal with galvanic isolation, but also supplying power to the secondary
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Design of a Resonant Converter for a Regenerative Braking System Based on Ultracap Storage for Application in a Formula SAE Single-Seater Electric Racing Car Electronics (IF 2.412) Pub Date : 2021-01-13 Alberto Dolara; Sonia Leva; Giacomo Moretti; Marco Mussetta; Yales Romulo de Novaes
Electric mobility can represent a game changing technology for the long-term sustainability of the transportation sector. Pursuing this target, a model to simulate an Electric Vehicle (EV) for Formula SAE Electric competition is herein proposed: all the subsystems of the EV and the hybrid storage of the Li-ion batteries and Ultra-Capacitors (UCs) are implemented, in order to store the kinetic energy
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A High Conversion Gain Envelope Detector with Wide Input Range for Simultaneous Wireless Information and Power Transfer System Electronics (IF 2.412) Pub Date : 2021-01-13 Yan Li; Xin Liu; Xiaosong Wang; Qian Su; Shuaipeng Zhao; Zhiqiang Wang; Yu Liu
Wireless sensors networks (WSN) have been gradually facilitating the pervasive connectivity of wireless sensor nodes. A greater number of wireless seneors have been used in different aspects of our life. However, limited device battery life restricts the applications of large-scale WSN. This paper presents a batteryless envelope detector with radio frequency energy harvesting (RFEH) for wireless sensor
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Development of an Ethernet-Based Heuristic Time-Sensitive Networking Scheduling Algorithm for Real-Time in-Vehicle Data Transmission Electronics (IF 2.412) Pub Date : 2021-01-13 Hyeong-jun Kim; Min-hee Choi; Mah-ho Kim; Suk Lee
The rapid development and adaptation of advanced driver assistance systems (ADAS) and autonomous driving increases the burden of in-vehicle networks. In-vehicle networks are now required to provide a fast data rate and bounded delay for real-time operation, while conventional protocols such as controller area networks, local interconnected networks, and FlexRay begin to show limitations. Ethernet-based
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Achieving Balanced Load Distribution with Reinforcement Learning-Based Switch Migration in Distributed SDN Controllers Electronics (IF 2.412) Pub Date : 2021-01-13 Sangho Yeo; Ye Naing; Taeha Kim; Sangyoon Oh
Distributed controllers in software-defined networking (SDN) become a promising approach because of their scalable and reliable deployments in current SDN environments. Since the network traffic varies with time and space, a static mapping between switches and controllers causes uneven load distribution among controllers. Dynamic migration of switches methods can provide a balanced load distribution
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Development of Decision Support Software for Deep Learning-Based Automated Retinal Disease Screening Using Relatively Limited Fundus Photograph Data Electronics (IF 2.412) Pub Date : 2021-01-13 JoonHo Lee; Joonseok Lee; Sooah Cho; JiEun Song; Minyoung Lee; Sung Ho Kim; Jin Young Lee; Dae Hwan Shin; Joon Mo Kim; Jung Hun Bae; Su Jeong Song; Min Sagong; Donggeun Park
Purpose—This study was conducted to develop an automated detection algorithm for screening fundus abnormalities, including age-related macular degeneration (AMD), diabetic retinopathy (DR), epiretinal membrane (ERM), retinal vascular occlusion (RVO), and suspected glaucoma among health screening program participants. Methods—The development dataset consisted of 43,221 retinal fundus photographs (from
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A Current Monitor System in High-Voltage Applications in a Range from Picoamps to Microamps Electronics (IF 2.412) Pub Date : 2021-01-13 Rabí Soto-Camacho; Sergio Vergara-Limon; María Aurora Diozcora Vargas-Treviño; Guy Paic; Jesús López-Gómez; Marciano Vargas-Treviño; Jaime Gutierrez-Gutierrez; Fermín Martínez-Solis; Miguel Enrique Patiño-Salazar; Victor Manuel Velázquez-Aguilar
In this article, we present a system to measure current in the range of 0 to 10 μA with high-voltage isolation up to 5 kV. This current monitor consists of three ammeters connected in series, to improve the resolution in the measurement. The design features several innovative elements such as using low voltage to provide power to the devices to measure the current and digitize it with a sampling frequency
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Infinity Shell Shaped MIMO Antenna Array for mm-Wave 5G Applications Electronics (IF 2.412) Pub Date : 2021-01-13 Mian Muhammad Kamal; Shouyi Yang; Xin-cheng Ren; Ahsan Altaf; Saad Hassan Kiani; Muhammad Rizwan Anjum; Amjad Iqbal; Muhammad Asif; Sohail Imran Saeed
In this paper, a novel single layer Multiple Input–Multiple Output (MIMO) antenna for Fifth-Generation (5G) 28 GHz frequency band applications is proposed and investigated. The proposed MIMO antenna operates in the Ka-band, which is the most desirable frequency band for 5G mm-wave communication. The dielectric material is a Rogers-5880 with a relative permittivity, thickness and loss tangent of 2.2
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Networked VR: State of the Art, Solutions, and Challenges Electronics (IF 2.412) Pub Date : 2021-01-13 Jinjia Ruan; Dongliang Xie
The networking of virtual reality applications will play an important role in the emerging global Internet of Things (IoT) framework and it is expected to provide the foundation of the expected 5G tactile Internet ecosystem. However, considerable challenges are ahead in terms of technological constraints and infrastructure costs. The raw data rate (5 Gbps–60 Gbps) required achieving an online immersive
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Improvement of Identity Recognition with Occlusion Detection-Based Feature Selection Electronics (IF 2.412) Pub Date : 2021-01-13 Jaeyoon Jang; Hosub Yoon; Jaehong Kim
Image-based facial identity recognition has become a technology that is now used in many applications. This is because it is possible to use only a camera without the need for any other device. Besides, due to the advantage of contactless technology, it is one of the most popular certifications. However, a common recognition system is not possible if some of the face information is lost due to the
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Resonant Frequency and Bandwidth of Superconducting Microstrip Antenna Fed through a Slot Cut into the Ground Plane Electronics (IF 2.412) Pub Date : 2021-01-12 Ahmed Mahamdi; Siham Benkouda; Skander Aris; Tayeb A. Denidni
In this work, an efficient analysis is presented to accurately predict the resonant frequency and bandwidth of superconducting microstrip antenna fed through a slot cut into the ground plane. The effect of the superconductivity of the rectangular patch is introduced in the Full-wave analysis based on Gorter-Casimir two fluid model together with London brothers equations. In order to check the accuracy
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