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3D Stackable Vertical Ferroelectric Tunneling Junction (V-FTJ) with on/off Ratio 1500x, Applicable Cell Current, Self-Rectifying Ratio 1000x, Robust Endurance of 109Cycles, Multilevel and Demonstrated Macro Operation Toward High-Density BEOL NVMs

3D Stackable Vertical Ferroelectric Tunneling Junction (V-FT...

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2023 IEEE Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2023

作者： Lee, J.-Y. Chang, F.-S. Hsiang, K.-Y. Chen, P.-H. Luo, Z.-F. Li, Z.-X. Tsai, J.-H. Liu, C.W. Lee, M.H. National Taiwan Normal University Institute and Undergraduate Program of Electro-Optical Engineering Taiwan National Taiwan University Graduate School of Advance Technology Taiwan National Yang Ming Chiao Tung University Institute of Electronics Department of Electronics Engineering Taiwan National Taiwan Normal University Department of Electrical Engineering Taiwan

ISBN: (纸本)9784863488069

A 1500x ILRS/IHRS with a high cell current of 100 nA/ cell (J = 83 A/cm2) is achieved by antiferroelectric (AFE) vertical ferroelectric tunnel junctions (V-FTJs) that demonstrates multilevel, a self-rectifying rate > 1000x, and macro operation. The stackable 3 D architecture integrating multiple layers of AFE V-FTJs with contact optimization further increases memory density. Robust endurance > 109 cycles at |4V| and stable nonvolatile data retention > 104 sec with extrapolation to 10 years are achieved. The proposed cell contact V-FTJ by AFE is a promising pathway toward BEOL NVMs by a NAND/NOR-based framework. © 2023 JSAP.

关键词： Ferroelectricity

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Design and construction of remote-controlled quad-copter based on STC12C5624AD

Design and construction of remote-controlled quad-copter bas...

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2012 International Conference on System engineering and Technology, ICSET 2012

作者： Jeremia, Stevie Kuantama, Endrowednes Pangaribuan, Julinda Department of Electrical Engineering Faculty of Industrial Technology Universitas Pelita Harapan Undergraduate Program: JL. M.H. Thamrin Boulevard Lippo Karawaci Tangerang 15811 Indonesia Graduate Program: Plaza Semanggi JL. Jend. Sudirman Kav. 50 Jakarta 12930 Indonesia

ISBN: (纸本)9781467323765

Quad-copter is a copter equipped with four motors and propellers, faced to top side, placed vertically and opposite each other propeller. Physically, quad-copter resembles a plus sign form, where each motors placed on edge of the plus sign. The quad-copter design reported in the thesis uses microcontroller STC12C5624AD, electronic speed controllers, brushless DC motors, 3000mAh Lithium-Polymer Battery Packs, propellers, ADXL345 accelerometer module, signal receiver module, and remote controller. Using a 2.4GHz remote controller, the control signal will be received by the receiver module, and then processed by the microcontroller. The accelerometer module acts as balancer of the quad-copter that could reset the quad-copter to its initial position and detects tilt position in 3-axes (x, y, and z axis). After receiving input signal from remote control and accelerometer module, the microcontroller will generate final decision to operate motor stably. Combination of four main motors, accelerometer, and microcontroller produce a cost-effective quad-copter that can fly stably indoor and outdoor. This thesis reports design and construction of the remote-controlled quad-copter. This work, not only applies theories that author have learned, but also could be useful for real life in the future. © 2012 IEEE.

关键词： Brushless DC motors

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Influence of Phototype, Sweating and Moisturizing Lotions on Human Skin Emissivity: A Possible Cause of Screening Errors of Feverish People in Sanitary Barriers 9th

Influence of Phototype, Sweating and Moisturizing Lotions on...

引用

9th Latin American Congress on Biomedical engineering, CLAIB 2022 and 28th Brazilian Congress on Biomedical engineering, CBEB 2022

作者： Ninke, Andriele Lemos, João Thomaz Muniz, Pablo Rodrigues Nunes, Reginaldo Barbosa Campos, Hércules Lázaro Morais Simão, Josemar /Campus Vitória Undergraduate Electrical Engineering Course Vitória Brazil /Campus Vitória Graduate Program in Sustainable Technologies Vitória Brazil /Institute of Health and Biotechnology Federal Coari Brazil /Campus Vitória Electrotechnical Course Vitória Brazil

ISBN: (纸本)9783031494093

Due to the Coronavirus Disease 2019 (Covid-19) pandemic scenario, the implementation of sanitary barriers to screening feverish individuals in places of large circulation of people was adopted, aiming to contain the disease spread. Since contamination by the virus occurs through contact and one of the most common symptoms is fever, measuring the temperature of passers-by through non-contact infrared thermography has been a technique used in sanitary barriers. One of the main factors that significantly change the temperature value indicated by thermal imagers is the emissivity of the inspected surface. Skin emissivity, a dimensionless quantity, is found in the literature with a recurrent value of 0.98. The objective of this study is to investigate whether this value is also valid for skin with sweating or using moisturizing lotions, as well as, for different phototypes. Thus, tests and evaluation of emissivity with volunteers in laboratory can answer these questions. The partial results include 37 volunteers of five skin tones of the Fitzpatrick scale, which has six phototypes. Volunteer’s thermographic images were obtained in different situations: dry skin, using moisturizing lotion, and sweaty skin. From the analysis of these images by software and using the tape method, it was possible to estimate the skin emissivity value for each situation. With the emissivity data in hand, a statistical analysis was carried out to assess whether the influence of the conditions studied is significant for the emissivity value and consequently for the temperature measured by the instruments based on the principle of infrared thermography. © 2024, The Author(s), under exclusive license to Springer Nature Switzerland AG.

关键词： Thermography (imaging)

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Color recognition robot

Color recognition robot

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International Conference on Communication Software and Networks, ICCSN

作者： Jessie Darma Frederick Leonardy Setyawan Endrowednes Kuantama Graduate Program in Electrical Engineering University of Pelita Harapan Tangerang Indonesia Undergraduate Program in Electrical Engineering University of Pelita Harapan UPH Tower Lippo Village Tangerang 15811 Universitas Pelita Harapan Tangerang Banten ID

The advance of robotic technology will bring ease to human life not only in the industrial sector but also the education and entertainment sector. In this research, an idea of a robot that can classify objects according to their color is proposed. The classification process depends on several sensors such as light sensor, color sensor, and touch sensor. The designed robot is able to tell the difference out of three colors that show different intensity in a short time. The objects consist of three balls with different colors that need to be classified into three different places. This robot uses a 12 volt battery as a supply and a dc motor to move around. To collect the object, this robot is using a vacuum tube instead of a "hand", which is more frequently used in this type of robot.

关键词： Robot sensing systems Sensitivity Color Humans

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Optimal Indirect Power Predictive Controller in the Alpha-Beta Reference Frame for Grid-Connected Converters

Optimal Indirect Power Predictive Controller in the Alpha-Be...

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FISE-IEEE/CIGRE Conference on Living the energy Transition (FISE/CIGRE)

作者： D. Murillo-Yarce J.J Marulanda-Durango A. Escobar Mejía A. Alzatc-Gómez Doctorate in Engineering Systems Faculty of Engineering Universidad de Talca Curicó Chile Electrical Engineering Graduate and Undergraduate Program Universidad Tecnológica de Pereira Pereira Colombia

ISBN: (纸本)9781728142319

This article presents an indirect power predictive optimal controller applicable to grid-connected converters. The VSI converter is used as an interface between distributed generators, energy storage systems and the ac-grid. The objective of the research project is to develop a controller with high static and dynamic features, that performs with low computational burden and low switching stress. The first step to develop the controller is to select the appropiate reference frame. The αβ frame is used for its simple structure and easy implementation. Then, the proposed methodology consider the controller performance to define the sampling period, the prediction horizon and the switching pattern. Results show that an increment in the sampling period results in a major harmonic content, and if the prediction horizon increases, the number of calculations is higher without improving the controller performance. The main features of the proposed controller are: low sampling times and a two-steps prediction horizon. With these features the VSI efficiency rises, while the systems's losses and harmonic distortion are reduced.

关键词： Power control Predictive control Cost function Switches Inverters Reactive power

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Generalized Predictive Controller Applied in a Bidirectional DC-DC Converter

Generalized Predictive Controller Applied in a Bidirectional...

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Brazilian Power Electronics Conference, COBEP

作者： Daniel Abreu Macedo da Silva André Cavalcante do Nascimento Rejane de Barros Araújo Rogério José de Souza Melo Electrical Engineering Graduate Program Federal University of Pará Belém Brazil Federal Institute of Pará Belém Brazil Undergraduate Electrical Engineering Estácio CollegeBelémBrasil

ISBN: (纸本)9781665421300

This work proposes the project of the Generalized Predictive Controller (GPC), this is applied to a bidirectional converter, whose topology is the non-isolated Buck and Boost derived bidirectional DC-DC, present on a DC Nanogrid. The system consists of a primary bus, represented by Vdc, with high voltage, which is feeded by a renewable energy source that generates 175 V and a secondary source, represented by VBatt, with low voltage from a 48 V battery. The objective is to develop robustness and performance analysis, and ensure reference tracking and rejection of disturbance of this predictive controller when used in a bidirectional converter present in the aforementioned situation. In addition to analyzing how the control weighting factor interferes in the robustness and performance of this controller in this situation.

关键词： Renewable energy sources Low voltage Visualization DC-DC power converters Static power converters Robustness Time measurement

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Robust decoupling control synthesis

Robust decoupling control synthesis

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2014 American Control Conference, ACC 2014

作者： Siqueira, Marianna A. S. Silva, Luiz F. G. Goncalves, Eduardo N. Palhares, Reinaldo M. Takahashi, Ricardo H. C. Graduate Program of Electrical Engineering UFSJ/CEFET-MG Brazil Undergraduate Program of Electrical Engineering CEFET-MG Brazil Department of Electrical Engineering Centro Federal de Educação Tecnológica de Minas Gerais CEFET-MG Av. Amazonas 7675 Belo Horizonte MG Brazil Department of Electronic Engineering Universidade Federal de Minas Gerais - UFMG Av. Antônio Carlos 6627 Belo Horizonte Brazil Department of Mathematics Universidade Federal de Minas Gerais - UFMG Av. Antônio Carlos 6627 Belo Horizonte Brazil

ISBN: (纸本)9781479932726

The control of multivariable industrial processes is frequently performed using a multiloop configuration, in which several PID controllers are committed to control different channels of the plant. A difficulty with such a strategy arises due to the interaction among the control loops, which may cause the control action in a loop to give rise to significant disturbances in other loops. In some cases, it is mandatory to consider a decoupling control that includes a decoupling precompensator, or decoupler, to guarantee acceptable decoupling among the control loops. This paper presents a new robust decoupling control synthesis procedure for multiloop control systems which aims to decouple the different channels of the multivariable system and to guarantee the tracking response performance. The control problem is stated as a non-convex optimization problem which is formulated directly in the space of the PI/PID controllers and precompensator parameters. Polytopic models represent the system uncertainty. An application example is developed for the control of a quadruple-tank process with emphasis in dealing with the control decoupling when the system is working on a non-minimum phase operating point. © 2014 American Automatic Control Council.

关键词： Three term control systems

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Location Analysis Probing Rockets in Ground with Telemetry Data

Location Analysis Probing Rockets in Ground with Telemetry D...

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International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)

作者： Nilton Rodrigues Cantanhede Ewaldo Eder Carvalho Santana Paulo Fernandes da Silva Júnior Raimundo Carlos Silvério Freire Tiago Pereira Santana Lúcio Flávio de Albuquerque Campos Gabrielle Muniz Fernandes Maria Tereza Cunha de Albuquerque Sophia Viana Macedo Graduate Program in Electrical Engineering Federal University of Maranhão São Luís Brazil Graduate Program in Computer and System Engineering State University of Maranhão São Luís Brazil Graduate Program in Electrical Engineering Federal University of Campina Grande Campina Grande Brazil Graduate Program in Computational Engineering and Systems State University of Maranhão São Luís Brazil Undergraduate Program in Computational Engineering State University of Maranhão São Luís Brazil Graduate Program in Electrical Engineering Federal University of Paraiba João Pessoa Brazil

ISBN: (数字)9798350350869

ISBN: (纸本)9798350350876

Rocket launch centers are crucial in technological development across various fields, including meteorology, long-distance real-time communications, geoprocessing, and satellite operations. However, one of the challenges in tracking probing rockets is accurately identifying their position from the moment of launch until the initial seconds, due to ground noise that interferes with traditional radar location systems. In this study is proposed an innovative method to precisely determine the distance between the rocket and the ground telemetry station. We utilize onboard telemetry signals processed by the Acquisition and Processing Data Trajectory (APDtraj) system, developed by Delsis Aerospace for the Launch Center. This system enables the identification of the rocket's position both on the ground and during the early stages of flight, using telemetry data processed by APDtraj. This monitoring equipment alone calculated the distance between the Telemetry Station and the rocket just moments before launch lift-off with an error of only 16.844 meters from the actual position of origin. Based on our studies, we were able to measure the radial distance and location between the rocket and the telemetry station just four seconds after launch, even without reliable radar information, which is often disrupted by ground noise. This technological advancement not only enhances the efficiency of rocket launch operations but also expands overall tracking capabilities.

关键词： Rockets Transducers Satellites Radar measurements Spaceborne radar Noise Radar tracking Real-time systems Trajectory Telemetry

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Cognitive priority model for advanced telemedical support in Limited Bandwidth Applications

Cognitive priority model for advanced telemedical support in...

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IEEE Canadian Conference on electrical and Computer engineering

作者： Thomas E. Doyle David. M. Musson Taralyn Schwering McMaster eHealth Graduate Program Electrical and Computer Engineering School of Biomedical Engineering McMaster University Hamilton Ontario Canada Undergraduate Medical Education Northern Ontario School of Medicine Thunder Bay Ontario Canada Electrical and Computer Engineering McMaster University Hamilton Ontario Canada

Telemedicine offers the ability to provide real-time medical support, education, and care to remote and austere locations under limited bandwidth restrictions. These types of communication channels can easily be overwhelmed and delays or interruptions make communication difficult, if not impossible. These interruptions destroy the temporal orientation of communication resulting in significant cognitive loading. The objective of this research was to lower cognitive load and minimize digital communication bandwidth by developing a priority model from perceptual quality and content focus of telemedical video. H.264/AVC encoding was used to encode two types of medical context with varying bitrates, frame rates, and frame sizes. Telemedical video contexts were room awareness, and medical procedure. Objective quality and subjective quality tests were performed using Structural Similarity (SSIM) and perceptual feedback, respectively. The objective of this research is to develop context specific telemedicine communication models for the highest perceptual quality for available bandwidth for the purpose of increased temporal orientation and decreased cognitive load. Our research presents a method to select the best encoding parameters (maximum bitrate, frame rate and frame size) for the medical context to minimize bandwidth and maintain diagnostic and education quality.

关键词： Biomedical Telemetry Telemedicine Telematics Medical Information Systems Medical Services Temporal Orientation Cognitive Load

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Superlattice HfO2-ZrO2 based Ferro-Stack HfZrO2 FeFETs: Homogeneous-Domain Merits Ultra-Low Error, Low programming Voltage 4 V and Robust Endurance 109 cycles for Multibit NVM

Superlattice HfO2-ZrO2 based Ferro-Stack HfZrO2 FeFETs: Homo...

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International Electron Devices Meeting (IEDM)

作者： C.-Y. Liao Z.-F. Lou C.-Y. Lin A. Senapati R. Karmakar K.-Y. Hsiang Z.-X. Li W.-C. Ray J.-Y. Lee P.-H. Chen F.-S. Chang H.-H. Tseng C.-C. Wang J.-H. Tsai Y.-T. Tang S. T. Chang C. W. Liu S. Maikap M. H. Lee NTNU Institute and Undergraduate Program of Electro-Optical Engineering Taipei Taiwan Department of Electronic Engineering CGU Taoyuan Taiwan NYCU Institute of Electronics Hsinchu Taiwan Graduate School of Advance Technology NTU Taipei Taiwan Department of Electrical Engineering NTNU Taipei Taiwan Department of Electrical Engineering NCU Taoyuan Taiwan Department of Electrical Engineering NCHU Taichung Taiwan

ISBN: (纸本)9781665489607

Superlattice (SL) HfO 2 -ZrO 2 with physical thickness of 5 nm and low phase fraction ratio 0.101:1 of monoclinic-phase (m-phase) to orthorhombic-phase (o-phase) investigated by geometrical phase analysis (GPA) is demonstrated. The homogeneous and congruous of SL-HfZrO 2 (HZO) with sufficient ferroelectric-domain is integrated as ferro-stack FeFETs for multibit NVM with low |V PG/ER | = 4 V, ultra-low error rate = 7.5×10 -16 , record high 2-bit endurance for 10 9 cycles, and stable data retention > 10 4 s. The device-to-device (D2D) variation of nanoscale 3D FeFETs is also improved with the proposed SL-HZO. The superlattice technique for FE-HZO is a promising concept with elevating the coherence of domain access due to high o-phase toward emerging memory applications.

关键词： Voltage fluctuations Three-dimensional displays Nonvolatile memory Superlattices Switches programming Nanoscale devices

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