Advances in Engineering Research. Volume 50


Victoria M. Petrova  (Editor)

Series: Advances in Engineering Research
BISAC: TEC000000

One of the multiple approaches employed to monitor older people and check their health status is the use of the Hidden Markov Models (HMM), a statistical model that uses observable facts to model hidden events. Chapter One present a systematic review of using the Prisma Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) that was updated in 2020 to incorporate the latest technologies and techniques. The review aims to establish the state of the art of the subject and presents as a conclusion how the HMM has been used and which are the open issues that need deeper research or new development to get new insights. To achieve this aim, the PRISMA methodology is carried out on Web of Science, PubMed, and Scopus.
Chapter Two focuses on developing processes that provide tools (including soft and hard, analog and digital technologies) to any type of population, to break the inequality gaps in the context of the 4th industrial revolution. Chapter Three provides an overview, applications and challenges of VLC ODFM (orthogonal frequency division multiplexing) systems. In Chapter Four, the authors propose a low-cost, simple, and durable IoT-based system for the following two purposes: 1) predicting crops suitable for a given piece of land based on the soil parameters, namely, soil potential of Hydrogen (pH) and soil temperature and 2) monitoring and automating some of the recurrent processes, i.e., adding fertilizer such as Nitrogen, Phosphorous, and Potassium (NPK) and irrigation of the land. Chapter Five focuses on the effect of noise on the dynamics of natural processes. Chapter Six presents a study regarding the contribution of inrush current to the occurrence of mechanical fatigue in windings of a power transformer and, consequently, the impact of that phenomenon on the equipment’s lifetime. Chapter Seven presents a design for short circuit withstand capability of a transformer. The short circuit test is carried out to verify the integrity of short circuits developed when short circuit current flows through the transformer. In the final chapter, the problem of initial orientation of strapdown navigation system on a movable base is solved using inertial measurements under the most general assumptions about the nature of random angular motion of the base. The solution to the problem is obtained in the form of an extended Kalman filter.

Table of Contents


Chapter 1. A Systematic Review of the Use of Hidden Markov Models to Monitor Older Adults: Approximations, More Used Approaches, and Open Research
Rubén García-Vidal* and Óscar Belmonte-Fernández
Institute of New Imaging Technologies – INIT (Universitat Jaume I – UJI),
Research Group on Machine Learning for Intelligent Environments (Giant),
Castelló de la Plana, Spain

Chapter 2. Problem and Passion – Based Poiesis: Innovation, Cooperation and Design in
the Fourth Industrial Revolution

Jhon Freddy López Medina and Damaris Marcela Sánchez Morales
National University of Colombia, Colombia, US

Chapter 3. VLC OFDM System: Overview, Applications and Challenges
Nishant Sharan, Ajit Kumar and S.K. Ghorai
Dept. of ECE, Vignan’s Lara Institute of Technology& Science, Guntur, A.P, India
Dept. of ECE, School of Engineering, Presidency university, Bangalore, Karnataka., India
Dept. of ECE, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India

Chapter 4. Crop Prediction Based on Soil Parameters Using Internet of Things and Machine Learning Implemented Over Wi-Fi Protocol
T. N. Sharma, Master, and A. Taparugssanagorn†, PhD
School of Engineering and Technology, Asian Institute of Technology, Thailand

Chapter 5. The Effect of Noise on Dynamics of Natural Processes: A Review of Methodology and Engineering Applications
Srđan Kostić1, PhD, Nebojša Vasović2, PhD, and Kristina Todorović3, PhD
1Jaroslav Černi Water Institute, Belgrade, Serbia
2University of Belgrade Faculty of Mining and Geology, Belgrade, Serbia
3University of Belgrade Faculty of Pharmacy, Belgrade, Serbia

Chapter 6. Power Transformers Windings Submitted to Inrush Currents: The Possibility of
Mechanical Failure

Dr. Rafael Mendonça Rocha Barros
Federal Institute of Pernambuco (IFPE), Garanhuns, Brazil

Chapter 7. Design for Short Circuit Withstand Capability of a Transformer
Dr. Geno Peter1 and Dr. Albert Alexander Stonier2
CRISD, School of Engineering and Technology, University of Technology Sarawak, Sarawak, Malaysia
2Department of Electrical and Electronics Engineering, Kongu Engineering College, Tamil Nadu, India

Chapter 8. Nonlinear Estimation of Initial Orientation Parameters of Navigation Systems
on a Movable Base

S.V. Sokolov1, ScD, V.A. Pogorelov1, ScD and M.V. Polyakova1
Department of Informatics and Communication,
Moscow Technical University of Communication and Informatics, Moscow, Russia