Absence Seizures Detection Based On Embedded Machine Learning,
2023
Faculty of Engineering
Absence Seizures Detection Based On Embedded Machine Learning, Pimchanok Chatchavalvong
Chulalongkorn University Theses and Dissertations (Chula ETD)
Epilepsy is a common neurological disorder, affecting around 50 million people worldwide. One type of seizure is absence seizures, which are typically short, sudden lapses of consciousness, often going unnoticed and delaying diagnosis. Most absence seizure detection methods involve machine learning and deep learning techniques but are rarely implemented on an ultra-low-power microcontroller as an edge device. This paper presents the implementation of absence seizure detection algorithms on an ultra-low-power STM32L432KC microcontroller based on the Long Short-Term Memory network using an EEG database from the Faculty of Medicine at Chulalongkorn University. The algorithm was designed using 21 channels with a …
Task Assignment And Path Planning Of Multiple Unmanned Aerial Vehicles Using Integer Linear Programming,
2023
Faculty of Engineering
Task Assignment And Path Planning Of Multiple Unmanned Aerial Vehicles Using Integer Linear Programming, Imran Saeed Mirza
Chulalongkorn University Theses and Dissertations (Chula ETD)
วิทยานิพนธ์ฉบับนี้นำเสนอสูตรโปรแกรมเชิงเส้นจำนวนเต็มเพื่อการมอบหมายงานและการวางแผนเส้นทางให้กับอากาศยานไร้คนขับหลายลำกลุ่มโดรนจะได้รับมอบหมายให้เยี่ยมภารกิจให้ครบทุกเป้าหมายและเดินทางกลับไปยังตำแหน่งเริ่มต้นโดยมีเป้าหมายให้ได้ผลรวมของระยะทางที่โดรนทุกตัวเดินทางมีค่าน้อยที่สุดในขณะเดียวกันไม่อนุญาตให้มีทัวร์ย่อยใดๆเพื่อให้ได้ผลลัพธ์ที่มีประสิทธิภาพมากที่สุดมีการทดลองทดสอบเพื่อตรวจสอบความถูกต้องของสูตรที่ได้นำเสนอโดยใช้จำนวนโดรนและจำนวนงานที่หลากหลายผลการทดสอบแสดงให้เห็นว่าการเพิ่มจำนวนโดรนโดยทั่วไปสามารถช่วยลดระยะทางรวมและลดระยะเวลาในการทำภารกิจให้เสร็จสิ้นได้ข้อดีของวิธีที่เสนอคือให้ผลเฉลยที่เหมาะสุดแต่ใช้เวลาในการคำนวณเพื่อค้นหาผลเฉลยก็นานด้วยดังนั้นจึงได้ทำการทดลองโดยกำหนดจำนวนโดรนและภาระงานที่ขนาดแตกต่างกันจากการทดสอบโดยใช้คอมพิวเตอร์โน้ตบุ๊กที่มีหน่วยประมวลผลเพนเทียม10หน่วยความจำแรม8GBและหน่วยความจำเอสเอสดีขนาด256GBพบว่าระบบที่มีงานไม่เกิน27การหาผลเฉลยเหมาะสมที่สุดทำได้ภายในไม่กี่นาทีโดยไม่ขึ้นกับจำนวนโดรนที่ใช้งานแต่สำหรับงานจำนวนมากที่เกินขีดจำกัดนี้จะไม่สามารถได้ผลเฉลยแม้ว่าจะใช้เวลาจำลองไปแล้วเกินหนึ่งชั่วโมงก็ตาม
Single Image Super Resolution Using Deep Attention Network,
2023
Faculty of Engineering
Single Image Super Resolution Using Deep Attention Network, Jagrati Talreja
Chulalongkorn University Theses and Dissertations (Chula ETD)
This thesis introduces two innovative frameworks for Single Image Super Resolution (SISR) that enhances image quality while optimizing computational efficiency. The motivation for this research is driven by the need to overcome the limitations of current SISR techniques like capturing long-range dependencies, enhancing multi-scale feature learning, mitigating over-smoothing, and managing computational demands. The choice to incorporate attention mechanisms in both frameworks is motivated by their proven ability to allow the model to focus on the most relevant parts of the image, thereby improving the reconstruction of high-resolution details from low-resolution inputs. By integrating attention mechanisms with inception blocks, the proposed …
Wireless Environmental Weather Monitor,
2023
The University of Akron
Wireless Environmental Weather Monitor, Joel Christie-Millett, Nathan Schroeder, Sylvester Wilson, Matthew Szijarto
Williams Honors College, Honors Research Projects
The goal of this senior design/honors project is to create a device that monitors environmental conditions in order to detect a wildfire. This device should notify a user of the status of the environment. The device should also last for 6 months without any human interaction. My role on the team is to design the power supply system that maximizes efficiency and uses renewable energy.
Realtime Monitoring System Of Solar Panel Performance Based On Internet Of Things Using Blynk Application,
2022
ITSNU Pekalongan
Realtime Monitoring System Of Solar Panel Performance Based On Internet Of Things Using Blynk Application, Inayatul Inayah, Nur Hayati, Aflah Nurcholis, Achmad Dimyati, Muhammad Ghofinda Prasetia
Elinvo (Electronics, Informatics, and Vocational Education)
Renewable energy is one of the options to meet the increasing energy needs. As a tropical country, Indonesia has great potential for solar energy development. At this time, solar panels have been built in places exposed to direct light. However, monitoring solar panels is still performed manually using a multimeter by operators or field officers, so it cannot be performed in real-time. Real-time tracking is carried out to prevent damage and decreased performance of solar panels. Hence, we designed a real-time solar panel monitoring system based Internet of Things (IoT) using the Blynk application on a smartphone. Based on the …
Design And Development Of Aluminum Frame Unmanned Aerial Vehicle Hexacopter Configuration To Support Heavy Payload,
2022
Universitas Negeri Semarang, Indonesia
Design And Development Of Aluminum Frame Unmanned Aerial Vehicle Hexacopter Configuration To Support Heavy Payload, Ulfah Mediaty Arief, Pramudyo Wicaksono, Indah Novi Yarman
Elinvo (Electronics, Informatics, and Vocational Education)
Previous research has proven that the use of Unmanned Aerial Vehicles (UAVs) can increase the efficiency of human work. However, the design of the usefulness of UAV is considered to be limited. This limitation, for example, is that the UAV's lifting capacity is only capable of lifting 3-5 kilograms of load on average. In addition, the main material of the UAV frame also uses carbon fiber produced by build-up factories abroad, this makes the UAV design less economical. Furthermore, this study discusses the development of the UAV's lifting capacity of 25 kilograms to be able to lift the pesticide liquid …
Human Blood Grup And Rhesus Detection Tool Prototype Design Based On Iot,
2022
Politeknik Sukabumi
Human Blood Grup And Rhesus Detection Tool Prototype Design Based On Iot, Trisiani Dewi Hendrawati, Inzaghi Hasanudin
Elinvo (Electronics, Informatics, and Vocational Education)
Currently, medical practitioners carry out blood type and rhesus examinations by directly observing the agglutination reaction and depending on the examiner's eye. Meanwhile, the effects of eye fatigue and saturation will cause inaccurate data. Therefore, a detection device was made which aims to display information about reading human blood type and rhesus on a digital display which can also store the data into a database. The ABO and rhesus systems were used in this study. This research was made using a real-time method based on the internet of things (IoT). sending data in real-time using WiFi Module ESP-01 and other …
A Genetic Algorithm Approach To Optimal Sizing And Placement Of Distributed Generation On Nigerian Radial Feeders,
2022
Ibadan Electricity Distribution Company, Osun Region, Osogbo, Osun, NIGERIA
A Genetic Algorithm Approach To Optimal Sizing And Placement Of Distributed Generation On Nigerian Radial Feeders, Adelowo Balogun
Tanzania Journal of Engineering and Technology (TJET)
Mitigating power loss and voltage profile problems on radial distribution networks has been a major challenge to distribution system operators. While deployment of distributed generation, as compensators, has made a suitable solution option, optimum placement and sizing of the compensators has been a concern and it has thus been receiving great attention. Meta-heuristic algorithms have been found efficacious in this respect, yet the use of the algorithms in addressing problems of radial feeders is still comparatively low in Nigeria where analytical and numerical programming methods are common. Hence; the use of genetic algorithm to site and size distributed generator for …
Nondirect Line-Of-Sight Free-Space Optical Communications And Networks,
2022
New Jersey Institute of Technology
Nondirect Line-Of-Sight Free-Space Optical Communications And Networks, Paa Kwesi Affir Esubonteng
Dissertations
Nondirect Line-of-Sight Free-Space Optical Communications (NLoS-FSOC) uses diffuse reflected light to establish communication between two or more stations that are with or without line-of-sight (LoS) to each other. Different from free-space optical communications (FSOC), NLoS-FSOC uses a diffuse reflector (DR) between a transmitter and a receiver so that LoS is not required between them but between the station and the DR. Unlike a mirror, the DR reflects the incident light to all directions and except to itself. That multidirectional reflection broadcast the optical transmission to all receivers with LoS to the DR. The optical broadcast channel establishes a true optical …
Damage Stability Study Of A 500 Dw Ro-Ro Ferry Vessel,
2022
Departement of Industrial Technology, Vocational School, Universitas Diponegoro, Semarang 50275, Indonesia
Damage Stability Study Of A 500 Dw Ro-Ro Ferry Vessel, Zulfaidah Ariany, Budhi Santoso, Sarwoko Sarwoko, Nauval Abdurrahman Prasetyo
Makara Journal of Technology
The development of the crossing transportation industry is currently increasing in the island areas. The use of Ro-Ro type ferry boats is extremely efficient in moving people, goods, and vehicles. The current research focuses on the damage stability of the 500 DWT Ro-Ro ferry, which aims to meet the needs of the Ro-Ro ferry in the archipelago area. The previously existing initial design of a barge hull with a main size Lpp = 40.15 m, B = 12 m, H = 3.2 m, and T = 2.15 m was used to analyze the damage stability condition further. First, the drawings …
An Efficient Integrated Circuit Simulator And Time Domain Adjoint Sensitivity Analysis,
2022
Southern Methodist University
An Efficient Integrated Circuit Simulator And Time Domain Adjoint Sensitivity Analysis, Jiahua Li
Electrical Engineering Theses and Dissertations
In this paper, we revisit time-domain adjoint sensitivity with a circuit theoretic approach and an efficient solution is clearly stated in terms of device level. Key is the linearization of the energy storage elements (e.g., capacitance and inductance) and nonlinear memoryless elements (e.g., MOS, BJT DC characteristics) at each time step. Due to the finite precision of computation, numerical errors that accumulate across timesteps can arise in nonlinear elements.
In Band Full Duplex For Wireless Communication, A Medium Access Control Perspective,
2022
Southern Methodist University
In Band Full Duplex For Wireless Communication, A Medium Access Control Perspective, Yazeed Alkhrijah
Electrical Engineering Theses and Dissertations
In-band full duplex (IBFD) for wireless communication is defined as the ability of a node to send and receive data simultaneously by using the same frequency band. IBFD has the potential to double the spectral efficiency of wireless networks. In addition, IBFD improves security by mystifying any eavesdropper with multiple transmitted signals in a single frequency. Also, IBFD reduces the end-to-end transmission delay and solves the hidden terminal and exposed terminal problems. However, IBFD suffers from self-interference. Canceling self-interference (SI) is the main challenge in enabling IBFD. Another challenge for IBFD is to manage access to the network. IEEE802.11 are …
Data-Driven Power System Stability Analysis And Control,
2022
University of Central Florida
Data-Driven Power System Stability Analysis And Control, Jian Xie
Electronic Theses and Dissertations, 2020-2023
In recent years, with the expansion of power system size, the increase of interconnection and the use of large-scale renewable energy, power system stability and safe operations have become more prominent, causing challenges to the normal operation of power grid. Traditional analysis rely on detailed models of the system. But for real power systems, the operating state of the system is variable, and the model-based analysis methods may not accurately reflect the real operating state of the system. Therefore, this dissertation is focused on data-driven stability analysis and control. First, a method for locating the oscillation source of multi-machine systems …
Distributed Detection In Energy Harvesting Wireless Sensor Networks,
2022
University of Central Florida
Distributed Detection In Energy Harvesting Wireless Sensor Networks, Ghazaleh Ardeshiri
Electronic Theses and Dissertations, 2020-2023
A conventional wireless sensor networks (WSN), consisting of sensors powered by nonrechargeable batteries, has a strictly limited lifetime. Energy harvesting (EH) from the environment is a promising solution to address the energy constraint problem in conventional WSNs, and to render these networks to self-sustainable networks with perpetual lifetimes. In EH-powered WSNs, where sensors are capable of harvesting and storing energy, power control is necessary to balance the rates of energy harvesting and energy consumption for data transmission. In addition, wireless communication channels change randomly in time due to fading. These together prompt the need for developing new power control strategies …
Television White Space Based Broadband Network’S Coverage And Capex Performance For Rural Areas Connectivity In Tanzania,
2022
Department of Electronics and Telecommunications Engineering, University of Dar es Salaam
Television White Space Based Broadband Network’S Coverage And Capex Performance For Rural Areas Connectivity In Tanzania, Moses Ismail
Tanzania Journal of Engineering and Technology (TJET)
This study compared the CAPEX requirements for a television white space (TVWS) based broadband network and that of deploying the UMTS based mobile broadband networks to deliver broadband connectivity in areas with sparse population which characterize most of Tanzania rural. Like many developing countries, Tanzania has low Internet penetration, with penetration of just over 46% when multiple subscriptions are taken into account. The affected communities are mostly rural due to low population densities which make deployment of the mobile broadband to be much expensive in terms of costs. This limits the economic development potential in these areas given that the …
A Low-Cost, Low-Power, Scada Testbed Solution For Secure Remote Monitoring,
2022
Kennesaw State University
A Low-Cost, Low-Power, Scada Testbed Solution For Secure Remote Monitoring, Connor Berger
Symposium of Student Scholars
Similar to software application systems adopted by companies and businesses for product logging, payroll, human resources, Supervisory Control and Data Acquisition (SCADA) systems control the distributed processes with multiple components located on different machines that communicate and coordinate actions in order to appear as a single coherent system. SCADA systems severely lack the appropriate security and hack prevention measures. We propose a low cost, low power SCADA testbed solution for secure remote monitoring. The goal of this research is to implement and test the testbed’s security by emulating attack vectors on both hardware components and communication channels to probe the …
Diy Cell Incubator,
2022
California Polytechnic State University, San Luis Obispo
Diy Cell Incubator, Hayden James Jeanor
Electrical Engineering
The purpose of creating a cell Incubator is for the development of cell and tissue production in laboratory settings. Large scale research projects and the medical community grow cells for various reasons, including experiments and creating tissue for patients. However, they cannot simply depend on growing cells in a petri dish that sit on a rack at room temperature. To grow heathy cells in the fastest way possible, they use cell incubators. Cell incubators create an atmosphere within the incubation bay that is designed to promote cell growth. The three main components that need to be constantly regulated, using a …
Domain Aware Deep Learning For Wireless Physical Layer,
2022
University at Albany, State University of New York
Domain Aware Deep Learning For Wireless Physical Layer, Shuvam Chakraborty
Legacy Theses & Dissertations (2009 - 2024)
Wireless receiver design for OFDM systems is well investigated with classical signal processing tools, which lack the capacity to extract intrinsic channel effects in received signal and lead to high decoding error in receiver. Current deep learning techniques have shown improvement in such cases. But these models are mostly being developed as black box without any anchor to the theory of wireless signal propagation, which leads to surface level information gain and lacks generalizability. We propose deep learning models where the hyperparameters and learning objectives are derived from domain knowledge of wireless signal propagation. These models not only increase the …
An Integrated Electronic-Skin Patch For Real-Time And Continuous Monitoring Of A Panel Of Biomarkers Combined With Drug Delivery,
2022
University of Texas at Tyler
An Integrated Electronic-Skin Patch For Real-Time And Continuous Monitoring Of A Panel Of Biomarkers Combined With Drug Delivery, Tanzila Noushin
Electrical Engineering Theses
Inflammatory biomarkers present in the human body play a vital role in medical field by guiding the clinician in decision-making for many diseases. The levels of these inflammatory biomarkers are associated with the severity and progress of several diseases. Researchers have found that increasing severity of many diseases such as cardiovascular disease, after surgery infection, and adverse clinical outcomes due to infectious diseases, results in the elevation of the level of inflammatory biomarkers in human sweat. Furthermore, the inflammatory cytokines indicate the pathophysiology and prognosis of critically ill SARS‑CoV‑2 patients. In this thesis work, different sensors have been developed for …
Permanently-Installed Distributed Pressure Sensors For Downhole Applications,
2022
Clemson University
Permanently-Installed Distributed Pressure Sensors For Downhole Applications, Xuran Zhu
All Dissertations
Technology advancements (e.g., hydraulic fracturing and horizontal drilling) to recover unconventional oil and gas (UOG) resources are critical in maintaining future U.S. oil and gas production levels. Permanently installed distributed downhole pressure sensors could monitor fracture propagation, assess the effectiveness of hydraulic fracturing, and optimize hydraulic fracturing placement so that overall UOG recovery efficiency can be increased. However, the harsh environment (high temperatures, high pressures, strong vibration, and presence of brine, mud, debris, hydrate, and various gases), the long data telemetry distance, and the requirements of reliability and service lifetime make the downhole monitoring a very challenging task. To combat …
