Journal Articles
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Item Data analysis and artificial intelligence in the marine sector /(REST Publisher, 2024-09-06) Sivasami, K.; Thangalakshmi, S.This paper investigates the revolutionary influence of data analysis and artificial intelligence (AI) in the maritime sector, with a focus on cargo handling, ship route planning, and fuel efficiency optimisation. By integrating modern data analytics, cargo operations may be monitored and managed in real-time, which improves safety measures, decreases operational delays, and increases inventory management accuracy. AI-driven algorithms optimise ship route planning by analysing large datasets such as weather patterns and marine traffic, reducing travel time and operational expenses. Furthermore, predictive analytics and machine learning models are used to improve fuel efficiency by optimising engine performance and detecting maintenance issues before they cause costly downtime. This paper conducts a thorough analysis of these technologies' uses, assessing their influence on operational efficiency, cost savings, and environmental sustainability. The paper emphasises the crucial role of data analysis and AI in revolutionising old marine processes, eventually propelling the industry towards a more efficient and ecologically conscious future, through a series of case studies.Item Innovative solar pv array design: mitigating partial shading for optimal performance index /(Taylor & Francis, 2024-08-27) Sivasami, K.Photovoltaic arrays are popular for green energy but suffer productivity loss from module faults and partial shading conditions (PSC). These two faults must be distinguished to avoid a permanent shutdown. Hence, this article presents two Novel 4 X 4 array structures with fewer tie-lines to address mismatch power loss under these abnormal conditions. The performances of these novel arrays are compared with Total-Cross-Tied (TCT), Honey-Comb (HC), and Bridge-Link (BL) under three PSC categories, with six cases falling into each category. PSCs are analysed at constant and varying temperatures, along with row and column module faults. Thirteen performance indices, including the Overall Performance Index (OPI), are addressed. The percentage reduction of tie-lines in novel topologies, along with their strengths and limitations, and variation of the performance indices of all the topologies are analysed. The obtained results reveal that the Novel-1 and Novel-2 arrays capture the global maximum power point (GMPP) in 67% and 78% of the analysed situations, respectively, outperforming standard arrangements and decreasing tie-lines. These findings support the efficacy and economic benefits of the novel array configurations, which provide considerable increases in PV system performance and reliability across a variety of environmental circumstances.Item Intelligent vessels with robotic gesture control /(Springer Nature, 2023-09-28) Sivasami, K.; Thangalakshmi, S.; Kumar, Bandi RakshithThe crew’s safety is the most important aspect of any ongoing vessel. Many tasks on the ship are unsafe to the crew, so robots may be used to ensure the crew’s safety without compromising work quality. This lets self-driving ships to be designed lightweight and with fewer crew members, thereby lowering the use of fuel and their ecological impact. It is planned to use a gesture control robot for this purpose, which could control some ship operations from shore with a confined crew on-board a vessel. When working on these gesture control robots, internet of things (IoT) will be used for signal transmission from shore to ship as well as ship to shore. Arduino or Raspberry Pi controllers can be used to capture and transmit a signal, and a sequence of commands can be given ahead of time to overcome serious emergency situations. A signal transmission station and a signal transmitting suit may be required to accomplish this, which propagates a signal to the IoT cloud server, where the signal is further transferred to the centralised receiver plant onboard, which contains a receiver and a decoder and sends signal to the robot comprised of a micro-controller like Raspberry Pi or Arduino, which controls a motor and mimics our gesticulations. This paper presents a detailed study of a multi-degree autonomous ship, as well as an examination of recent literature and the various gesture control mechanisms with numerous applications.Item Nodes performance improvement uasn by using biological inspired algorithm /(IEEE, 2023-06-01) Sivasami, K.; Thangalakshmi, S.Underwater Acoustic Sensor Network (UASN) routing is difficult for several reasons. First, the UASN's energy consumption rises because the distance between nodes changes as it moves with the water current. The gathered scientific data packets are sent from the acoustic network to a receiving station on land. Second, there are difficulties with the underwater acoustic network, such as longer propagation delays and lower capacity because of danger. The biggest hurdle is inefficient data packet transfer between the UASN node and the onshore sink node. Finding a method that uses less energy is just the first step in reaching maximum efficiency. The underwater routing protocol has to be resilient in the face of connection failure brought on by extreme weather or power outages. The Modified Buffalo Optimization Algorithm is a novel optimization technique inspired by nature. The issues listed above may be avoided by using the Modified Buffalo optimization Algorithm that has been presented in this study. It was implemented in the NS2 simulator to evaluate the program's effectiveness and through its paces against the Chimp optimization method. In terms of throughput, packet delivery ratio, and power efficiency, the simulated results shows that the MBOA algorithm out performs COA Algorithm.Item Climate change over south indian coast due to aerosol and air pollution /(IARJSET, 2022-06-16) Thangalakshmi, S.; Sivasami, K.The two most serious dangers to nearly 60 percent of the world's population living in Asian monsoon zones are the growing severity of droughts/floods and decreasing air quality from increased aerosols. These simultaneous challenges have driven a huge amount of study on the effects of aerosols in influencing Asian monsoon weather and climate during the last decade. An aerosol is a colloid of small solid particles or liquid droplets suspended in air or another gas. The excess volume of aerosol in a certain place will have an impact on the health of living organisms as well as the regional climate. The Asian monsoon area is a major source of aerosol emissions from both man - made and natural sources. Aerosol loading patterns are extensively controlled by diverse meteorological and climatic regimens, which in turn are modified by aerosol impacts. Shipping emissions have garnered attention due to their harmful impact on regional climate and air quality at ports and along coasts across the world. As a result, recognising the aerosol in a certain place is critical. CO2, NOX, and SOX emissions from air pollution cause cloudiness and accelerate climate effect 'Radiative Forcing' (RF). Positive RF causes heat, while negative RF causes cooling. These also have an indirect influence on weather due to the Cloud Condensation Nuclei (CCN) ability of clouds, which has a significant impact of gases and particles. An increase in Sulphur may result in a decrease in Negative RF. Several techniques are applied to assess the range of aerosols, such as LIDAR, photometers, particle analysing methods, and so on; in this case, we utilise a particulate analyser to determine the amount of aerosol. To find out, we maintained the particle counter and analyser on the ship's top deck and examined the aerosol concentration over the atmosphere of the south Indian coast.Item Ship recycling : the need of a life cycle approach /(IEEE, 2022-02-21) Chockalingam, Gopikrishna; Sivasami, K.; Thangalakshmi, S.Having identified the potential hazard during the Ship recycling process, the Hongkong Convention mandates the inventory of hazardous materials for Ships above 500 GT. It also mandates the Ship recycling facility to have a Ship Recycling Plan based on the inventory of hazardous material. The Hongkong convention although addresses most of the issues in the ship recycling industry in the beaching method of ship recycling, it is silent over the issues pertaining to the downstream waste management. India has ratified the Hong Kong convention on 29th November 2019, has enacted the Ship Recycling Act, 2019 in line with the requirements of the Hong Kong convention. This paper analyses the key issues of concern in the ship recycling industry especially which employs the beaching method of recycling and the dire need of a Life cycle assessment approach in ship recycling, the process improvement of hazardous waste handling in the Ship recycling industry to prevent the accident occurrences, reduce the health issues to the workers in the ship recycling industry in addition to the pollution prevention aspects in the adjacent coastal areas.Item Waste-to-energy: a promising maritime transport technology /(IJOEST, 2022-05-21) Thangalakshmi, S.; Sivasami, K.Everything in the world, including the shipping industry, is powered by energy. There are numerous advanced energy-generation strategies, but it would be greatly valued if energy could be consistently derived from ship waste. Waste disposal is a difficult task in the shipping industry, so many studies are being conducted to find better ways to dispose of waste. According to regulatory agencies, India has a large source of both industrial and urban organic waste. The shipping industry, like any other, necessitates massive amounts of energy. On a daily basis, a massive amount of waste is generated, ranging from small crafts to ultra-large vessels (aerobic as well as anaerobic). So, there is a significant opportunity for capturing the energy from these waste, and both the difficulty of waste disposal and the depletion of conventional energy sources can be effectively addressed concurrently. This paper examines various means of generating energy from waste. Furthermore, the current state of Waste-to-Energy (WTE) in our country and around the world is discussed.