Light House Research Articles

OGC API: Ldproxy, an Updated and Contemporary Approach to Geodata Provision in Disaster Mapping

Abstract. Natural disaster occurrences have been rising for the past decades. It causes severe damage both in human properties and lives. To minimize the risk caused by disaster and accelerate the recovery, the accessibility of geospatial data is critical. WebGIS utilizes the internet to make the geospatial data accessible to a wider audience. In addition, the emergence of novel standards from OGC APIs also accelerates the accessibility of geospatial data. However, the abundance of Geospatial data requires a better performance of the webGIS. Ldproxy as a tool that follows OGC API standards could be an alternative to traditional tools such as Geoserver. This study focuses on developing a WebGIS application for accessing disaster-related geospatial data and evaluating the performance of Ldproxy in comparison to Geoserver. The method is to build a Single Page Application (SPA) using open-source data from Google Earth Engine (GEE) and OpenStreetMap (OSM). The functionalities of the webGIS enable users to retrieve OSM and GEE data and examine the impact of the disasters. The performance of Ldproxy and Geoserver is tested using Google Light House for comparison. The parameters that are tested are Speed Index, Total Blocking Time, Time to Interactive, Max Potential First Input Delay, Network Server Latency, and Total Byte Weight. As a result, Ldproxy shows slower performance in NSL compared to Geoserver. However, it offers an mvt feature format that makes the feature data can be loaded more efficiently and quickly.

Wind resource assessment and potential development of wind farms along the entire coast of South Korea using public data from the Korea meteorological administration

The feasibility of a wind farm locations should be evaluated on a thorough analysis and assessment of the available wind resources which necessitates wind data measurement for a minimum period of one year. Nevertheless, several limitations arise during this process, including challenges related to the site selection, cost considerations such as the installation of meteorological masts subsequent to marine physical and geotechnical surveys, and the requirement for ongoing maintenance. Therefore, several studies have been carried out to determine wind energy potential using reanalysis data. However, in areas with distinct terrain characteristics, such as maritime and coastal areas, uncertainties exist in the use of reanalysis data. Therefore, an analysis of wind resources based on measurement data is necessary in such areas. In this study, wind data measured by the Korea Meteorological Administration's automatic weather system and light house automatic weather system for 56 points along the Korean coast is obtained and analyzed. Additionally, the expected annual energy production and capacity factor were predicted when offshore wind turbines are installed using the power curve of a reference model of large offshore wind turbines in the 15–20 MW class. As a results, five points at which a capacity factor of over 35% is predicted as promising sites for future wind farm development. These public data from the Korea Meteorological Administration are also limited in their ability to provide accurate wind resource analysis for wind power generation due to the wind speed measurement instrument's height being lower than that of the wind turbine hub and environmental influences. However, these results can be useful in identifying possible candidate sites for wind farms in South Korea.

Thermal Performance Optimization Simulation Study of a Passive Solar House with a Light Steel Structure and Phase Change Walls

Phase change materials are used in passive solar house construction with light steel structure walls, which can overcome the problems of weak heat storage capacity and poor utilization of solar heat and effectively solve the thermal defects of light steel structure walls. Based on this, on the basis of preliminary experimental research, this study further carried out theoretical analysis and simulation research on the thermal performance of a light steel structure passive solar house (Trombe form) with PCM walls. Through the heat balance analysis of heat transfer in the heat collecting partition wall, the theoretical calculation formula of the phase change temperature of the PCM was obtained, and it verified theoretically that the phase change temperature value should be 1–3 °C higher than the target indoor air temperature. The evaluation index “accumulated daily indoor temperature offset value” was proposed for evaluating the effect of phase change materials on the indoor temperature of the passive solar house, and “EnergyPlus” software was used to study the influence of the phase change temperature, the amount of material, and the thickness of the insulation layer on the indoor air temperature in a natural day. The results showed that there was a coupling relationship among the performance and between of the thickness of the PCM layer and the phase change temperature. Under typical diurnal climate conditions in the northern Tibetan Plateau of China, the optimal combination of the phase change temperature and the layer thickness was 17 °C and 15 mm, respectively. Especially at a certain temperature, excessive increases in the thickness of the phase transition layer could not improve the indoor thermal environment. For this transition temperature, there exists an optimal transition layer thickness. For a Trombe solar house, the thickness of the insulation layer has an independent impact on indoor temperature compared to other factors, which has an economic value, such as 50 mm in this case. In general, this paper studied the relationship between several important parameters of the phase change wall of a solar house by using numerical simulation methods and quantitatively calculated the optimal parameters under typical meteorological conditions, thus providing a feasible simulation design method for similar engineering applications.

An optimization and refinement of the whole-gut transit assay in mice.

Gastrointestinal motility measurements in mice are currently performed under suboptimal conditions, as these nocturnal animals are measured during light conditions. In addition, other stressors, like individual housing, placement in a new cage during observation, and lack of bedding and cage enrichment cause animal discomfort and might contribute to higher variability. Here we aimed to develop a refined method of the widely-used whole-gut transit assay. Wildtype mice (N = 24) were subjected to the standard or refined whole-gut transit assay, either with or without a standardized slowing in gastrointestinal motility induced by loperamide. The standard assay consisted of a gavage with carmine red, observation during the light period and individual housing in a new cage without cage enrichment. For the refined whole-gut transit assay, mice were gavaged with UV-fluorescent DETEX®, observed during the dark period, while pairwise housed in their home cage with cage enrichment. Time until excretion of the first colored fecal pellet was assessed, and pellets were collected to assess number, weight, and water content. The DETEX®-containing pellets were UV-detectable, allowing to measure the mice in their active period in the dark. The refined method caused less variation (20.8% and 16.0%) compared to the standard method (29.0% and 21.7%). Fecal pellet number, weight, and water content was significantly different between the standard and refined method. This refined whole-gut transit assay provides a reliable approach to measure whole-gut transit time in mice in a more physiological context, with reduced variability compared to the standard method.

Isolated attosecond pulse generation from the interaction of intense laser pulse with solid density plasma

This article gives an overview on recent progress in the generation of isolated attosecond pulse and isolated half-cycle attosecond pulse. As an isolated attosecond pulse is preferred in the pump-probe experiments for the dynamics of electrons in atom, molecule, or solid, we focus on the isolated attosecond pulses generation from the intense laser pulses interaction with solid density plasma, which have higher intensity and narrower pulse width than that generated in the interaction of laser pulse with gas target. We have firstly discussed the physical mechanism of isolated attosecond pulse generation, such as polarization gating, two-color laser pulses, attosecond light houses, and capacitor target mechanism. In the polarization gating mechanism, we have discussed the physical mechanism that the higher-order harmonic efficiency decreases with the increase of ellipticity. Both the coherent synchrotron radiation mechanism and the relativistic oscillation mechanism can control the intensity of high-order harmonic generation by controlling ellipticity of the incident laser pulse. We also discussed other mechanism to enhance the isolated attosecond pulse bursts in detail. Secondly, we focus on the isolated half-cycle attosecond pulses, which can also be generated from the intense laser pulses interaction with solid density plasma by double foil target mechanism, gas-foil target mechanism, cascaded generation mechanism, microstructured target mechanism, and three-color laser pulse mechanism. The half-cycle attosecond pulses can be useful for probing ultrafast electron dynamics in matter via asymmetric manipulation. Accordingly we discussed the physcial mechanism, experimental feasibility, calibration measurement, and application prospect of half-cycle attosecond pulse in this article. The above mechanism can directly generate ultra-intense isolated attosecond pulses in the transmission direction without requiring extra filters and gating techniques. The dense electron sheet is crucial for the generation of intense attosecond pulses in different mechanisms, such as coherent wake emission (CWE), relativistic oscillating mirror (ROM) and coherent synchrotron emission (CSE). In this article, all the mechanism for half-cycle attosecond pulses generation can ensure only one electron sheet contributing to the transmitted radiation. We discuss the theoretical model of nanobunching of the electron sheet, which shows that the relativistic oscillation is crucial for the formation of electron sheet.

Intelligent Fire Resistance Testing and Calculation of Precast Modular House by Computer Numerical Simulation

Through the fire resistance tests of fourteen components and one full-scale flat-packed modular house, the fire resistance limits of both steel components under standard fire curve and modular house entirety under real fire were studied. Test results showed that the fire safety could be guaranteed for applying light steel modular houses in low-rise buildings. In addition to structural fire protection design, fire performance simulation should also be combined with the measures of smoke alarm, spray, smoke diffusion simulation, evacuation simulation, fuel control and rescue response to ensure the fire safety. The research results of this paper can provide references for fire protection design of light steel modular houses.

ACCEPTABILITY OF MOTION GRAPHIC ANIMATION

Educators contribute in the academic growth of the learners. They serve as the light house of the education system. Teachers create, develop and utilize appropriate tools and strategies to make learning possible and ensure a quality education. The teachers also facilitate and adapt positively in every changes they may encounter. As the technology inevitably change and develop, the learners also do. Teachers are continually adapting to this rapid change that learners are experiencing. A question on how they will provide effective and quality education are always a priority. As cited by Amali (2020) lack of students’ interest and attention to learn influence their learning process inside the classroom. Teachers who are used to apply traditional teaching found out that students are bored and uninterested especially those who belong to the low performing learners of the class (Ran, 2021).There are also several studies showing that the use of technology as an intervention in mathematics influences students’ outcomes, motivation to learn, and attitude about learning (Higgins, 2017). In the teaching learning process, the teacher can use or create various techniques and materials for the different learners. But the use of appropriate, reliable and valid materials is a must. In order to find the answers on how valid a video lesson is in teaching mathematics, the researcher comes up with the research study to develop and validate a video lesson in mathematics to provide a more motivating, interesting and informative MELC- based video lesson for the learners.

Daytime Light Deficiency Leads to Sex- and Brain Region-Specific Neuroinflammatory Responses in a Diurnal Rodent.

Seasonal changes in peripheral inflammation are well documented in both humans and animal models, but seasonal changes in neuroinflammation, especially the impact of seasonal lighting environment on neuroinflammation remain unclear. To address this question, the present study examined the effects of environmental lighting conditions on neuroinflammation in a diurnal rodent model, Nile grass rats (Arvicanthis niloticus). Male and female grass rats were housed in either bright (brLD) or dim (dimLD)light during the day to simulate a summer or winter light condition, respectively. After 4weeks, microglia markers Iba-1 and CD11b, as well as pro-inflammatory cytokines TNF-α and IL-6, were examined in the anterior cingulate cortex (ACC), basolateral amygdala (BLA), and dorsal hippocampus (dHipp). The results revealed that winter-like dim light during the day leads to indicators of increased neuroinflammation in a brain site- and sex-specific manner. Specifically,relatively few changes in the neuroinflammatory markers were observed in the ACC, whilenumerous changes werefound in the BLA and dHipp. In the BLA, winter-like dimLD resulted in hyper-ramified microglia morphology and increased expression of the pro-inflammatory cytokine IL-6, but only in males. In the dHipp, dimLD led to a higher number and hyper-ramified morphology of microglia as well as increased expression of CD11b and TNF-α, but only in females. Neuroinflammatory state is thus influenced by environmental light, differently in males and females, and could play a role in sex differences in the prevalence and symptoms of psychiatric or neurological disorders that are influenced by season or otherenvironmental light conditions. Diurnal Nile grass rats were housed under bright or dim light during the day for 4weeks, simulating seasonal fluctuations in daytime lighting environment. Dim light housing resulted in hyper-ramified morphology of microglia (scale bar, 15μm) and altered expression of pro-inflammatory cytokines (TNF-α) in a sex- and brain region-specific manner.

In Adan Tradition the Personality Traits about Father and Son

‘Otha padhithru pathu’ It is the Book belongs to the ‘Etthu Thogai’ literature and it tells about the outer life. In this literature it denotes the special about the ancient tamilians ruling power, war victories and donations. This book is a historical document only about the King’s of cherans. Kadalpiragottiya Senguttuvan is the son of Immayavaramban Neduncheralathan is the song leader of Second of the ten songs. In this Padhitru Pathu fifth ten part songs tells about the personality traits, straight forward way of victories, good rule for the people and they donated every thing to the people without saying the word No. Both of the leader for father and son did above thing. They lead the country for the people like the light house. It is the description’s of above research.

Time of Day-Dependent Alteration of Hippocampal Rac1 Activation Regulates Contextual Fear Memory in Rats.

Fear memory in species varies according to the time of the day. Although the underlying molecular mechanisms have been extensively explored, they remain largely unknown. Here, we report that hippocampal Rac1 activity undergoes a time of day-dependent alteration both in nocturnal rats and diurnal tree shrews and that training at the lower hippocampal Rac1 activation period during the night leads to better contextual fear memory in rats. Furthermore, day and night reversion by 24 h darkness/24 h light housing inverses the external clock time of hippocampal Rac1 activation, but the better contextual fear memory still coincides with the lower Rac1 activation in rats during the night. Interestingly, exogenous melatonin treatment promotes hippocampal Rac1 activity and impairs better contextual fear memory acquired at the lower Rac1 activation period during the night, and Rac1-specific inhibitor NSC23766 compromises the effect of melatonin. These results suggest that the time of day-dependent alteration of hippocampal Rac1 activation regulates contextual fear memory in rats by forgetting.

The Study of Shallot Seedling from TSS (True Shallot Seed) on LCAC (Low-Cost Aeroponic Chamber)

True Seed Shallot (TSS) is the planting material beside bulbs that farmers in Indonesia have used. TSS give some benefit for farmer technically and economically. However, the farmer’s utilization of TSS is not used widely yet because there are constraints on the provision of shallot seeds from TSS, such as low seed growing percentage and seedling performance. This study aims to obtain the best seedling performance of shallot from TSS with LCAC (Low-Cost Aeroponic Chamber) technology. The experiment was conducted at the Plant Factory and Screen House, Leuwikopo, Department of Mechanical and Biosystems Engineering, IPB University, July to October 2021. The germination was carried out for seven days. After that, the shallot seedlings have given light source treatments. The factor was light sources, i.e., screen house (sunlight; as a control; used wick system hydroponic), white light, red-blue light, and custom light (LED in a controlled room with LCAC). The performance shallot seedling on sunlight source treatment gave the average plant height, the number of leaves higher than white, red-blue, and custom light on 3 and 4 weeks after sowing. The white light treatment gave the chlorophyll-a, chlorophyll-b, and total chlorophyll-a & b higher than the other light source treatments.

A comparative evaluation of cardiac and neurological safety status of two commonly used oral hypoglycaemic agents in T2-DM Swiss albino mice model

BackgroundDiabetes mellitus (DM), along with its associated complications, including diabetic neuropathy and hyperlipidemia, has become a global concern in the last few decades. The main objective of our study is to evaluate the comparative neuro-safety status, serum plasma glucose, and lipid-lowering potential of two widely recognized antidiabetic drugs named metformin and glimepiride. MethodsThe neurological evaluation was done by open field test, hole board test, forced swimming test, dark and lighthouse test, and elevated plus maze test by employing diazepam as standard. Serum blood glucose level of streptozotocin (STZ)-induced diabetic mice was determined by glucose oxidizing method using a glucometer. Total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), and very-low-density lipoprotein cholesterol (VLDL-C) levels were estimated by using the reference method where atorvastatin was used as standard. ResultsIn neurological evaluation, both drugs produce almost the same anxiolytic activity in the open field test, hole board test, light and dark house test, and elevated plus maze test. However, in the forced swimming test, glimepiride produced more antidepressant activity than metformin. Glimepiride was found to remarkably reduce serum glucose and VLDL-C levels more than metformin, whereas, for other parameters, metformin takes over glimepiride sometimes took over the standard atorvastatin. ConclusionsThe results of our study indicate that both oral hypoglycaemic drugs alter the lipid index while producing some anxiolytic effects on the central nervous system. Thus, recommended to be carefully administered to patients with low BMI and might be beneficial to patients suffering from peripheral nerve function and anxiety.

Virgina Woolf ve Arnold Bennett’in Derlem Temelli Analizi

Corpus linguistics analysis is founded on the use of electronic collections of naturally occurring texts and it provides analysis of a great quantity of data not only in linguistic studies but also in literature by uncovering meanings of literary texts that have not been discussed or detected before. As a complement of feminist stylistics theory, this study aimed at examining the discourses of Woolf and Bennett in terms of sexist language through a corpus-based analysis. Virginia Woolf’s The Voyage Out, Mrs. Dalloway, To the Light House and Arnold Bennet’s Anna of the Five Towns, The Old Wives Tale, Helen with the High Hand were analyzed using corpus linguistics methods. The concordance lines of the gendered binary oppositions girl-boy, woman-man, lady-gentleman, female-male were analyzed in terms of sexist language aspect and the results were evaluated under feminist literary criticism theories.

Plant diversity of Point Calimere Wildlife Sanctuary and fodder species grazed by the Blackbuck Antilope cervicapra L.

A rapid but intense survey was conducted using visual landmarks in the Point Calimere Wildlife Sanctuary to enumerate the flora and foraging habits of the Blackbuck Antelope cervicapra. The area was divided into various segments such as the sanctuary entrance, Maattu muni kovil, Savukku plot or Casuarina plantation, S-Bend road and the old light house for precise enumeration. A total of 111 plant species that include 50 herbs, 16 climbers/lianas, 30 shrubs and sub-shrubs, and 15 trees belonging to 39 plant families were recorded in this study. Visual observations showed that Blackbucks grazed on grasses such as the Mangrove Grass Aeluropus lagopoides (L.) Thwaites, Dog’s Tooth Grass Cynodon barberi Rang. & Tadul., Indian Durva Grass Cynodon dactylon (L.) Pers., Feather Finger Grass Chloris virgata Sw., and a sedge, the pointed fimbristylis Fimbristylis acuminata Vahl during the day time. They were also observed browsing on the leaves and pods of Algaroba Prosopis juliflora (Sw.) DC. in the evenings. Our observation on the presence of feral horses and stray cattle in the Point Calimere Wildlife Sanctuary shows that they compete for food and water with the Blackbuck. The spread of invasive alien plant species competes with and reduces the space for native species.

A Comparative Study on the Life Cycle Assessment of New Zealand Residential Buildings

In New Zealand, housing is typically low density, with light timber framing being the dominant form of construction with more than 90% of the market. From 2020, as a result of the global pandemic, there was a shortage of timber in New Zealand, resulting in increased popularity for light steel framing, the main alternative to timber for housing. At the same time, the New Zealand government is committed to sustainability practises through legislation and frameworks, such as the reduction of whole-of-life carbon emissions for the building industry. New Zealand recently announced reducing its net greenhouse gas emissions by 50% within 2030. Life cycle assessment (LCA) is a technique for assessing the environmental aspects associated with a product over its life cycle. Despite the popularity of LCA in the construction industry of New Zealand, prior research results seem varied. There is no unified NZ context database to perform an LCA for buildings. Therefore, in this paper, a comprehensive study using LCA was conducted to quantify and compare the quantity of carbon emissions from two commonly designed houses in the Auckland region, one built from light timber and the other from light steel, both designed for a lifespan of 90 years. The cradle-to-cradle system boundary was used for the LCA. From the results of this study, it was found that the light steel house had 12.3% more carbon in total (including embodied and operational carbons) when compared to the light timber house, of which the manufacturing of two houses had a difference of 50.4% in terms of carbon emissions. However, when the end-of-life (EOL) analysis was included, it was found that the extra carbon could be offset due to the steel’s recyclability, reducing the amount of embodied carbon in the manufacturing process. Therefore, there was no significant difference in carbon emissions between the light steel and the light timber building, with the difference being only 12.3%.

The Light Houses of Kashmir

Abstract: Home is a basic necessity for everyone and becomes one the critical challenges faced by the developing countries. India is currently facing a shortage of about 17.6 million houses and the situation is no different in Kashmir if not more prominent owing to the geographical and climatic conditions of the valley. Presently in Kashmir, We witness that the Middle income groups, low income groups and economically weaker sections of the society, which are growing in size, are struggling to have their own houses. Concrete and steel housing cost a fortune so low cost and sustainable buildings are much needed in Kashmir. Low Cost Housing’ refers to those housing units which are affordable by that section of society where income is below MHI (Median Housing Income). It includes the use of construction methods that are cost effective, innovative and environment friendly and allow for a speedy construction. The paper deals with the present and the future trends about low cost housing materials and technologies in Kashmir. These technologies & materials, if implemented, can reduce the present housing problems up to some extent. Keywords: AAC, GFRG, filler slabs, SPW, CEB

Numerical models for the analysis of shear walls in light steel residential buildings

AbstractIn recent years, the use of steel light housing structural solutions made of cold‐formed thin‐walled profiles (CFS) is becoming increasingly popular. Lightness, high structural efficiency, durability, rapidity and simplicity of erection of the building and its finishes are some of the main advantages of these systems, which make them attractive and competitive with respect to more traditional constructional solutions. In these buildings, which do have a skeleton made of cold‐formed steel profiles completed by sheathings made of various materials, the key role of transmission of both vertical and horizontal loads from the floors to the foundation, is played by the shear walls. Recently, the University of Trento carried out a project aimed to develop an industrialized housing system made of CFS members. In this framework, experimental and numerical studies of the in‐plane lateral response of shear walls were performed. In particular, this paper summarizes first the experimental program and then it focuses on the main features of numerical models and on their validation in both monotonic and cyclic regime. The critical parameters governing the response of these complex systems are finally identified and discussed.

Concept of Time in Virginia Woolf’s To the Lighthouse: Bergsonian Study

Time is an important element in modern literature, has always been one of the most important themes of Virginia Woolf’s novels. The purpose of this paper is to look at Woolf treatment of the movement of time within the conscious mind in the novel in title of To the Light House by Virginia Woolf. One conclusion drawn from this study is that Woolf began to use time as a literary element, thereby decreasing her development of plot and characterization. A second conclusion is that she was greatly influenced by the philosophy of Henri Bergson and that consequently her writing increasingly reflects the fluid movement of time within consciousness. This paper demonstrates that Virginia Woolf used time as a formal element of narrative to show the relationship of time to human consciousness; and she never overlooked the fact that time moves human beings toward death. For Woolf, life is characterized by endless variety and movement. Its exquisite beauty is enhanced by knowing that we humans live short lives and lose everything when we die.

Evaluation and Development of Human Rights on National and International Levels

One of the perennial issues of politics has been the problem of striking a right balance between the rights of the individual and the authority of the State. While authority or sovereignty of the State is essential to maintain order and stability in the nation State (which is benevolent to its each and all individual citizens), the rights of theindividuals are essential for enabling them to develop their personality and to lead a happy and prosperous life enjoying their human rights. “Rights” and “authority” are not opposed to each other. In other words, human rights complement the authority of the State. In fact, they shape each other’s nature, importance and the content. Thus human rights can find better protection in an orderly and stable political system. The relationship that exists between individuals and their governments, at a given point of time, determines the very nature and content of human rights. Also, the type of political system a country has determines the extent of human rights protection available. Therefore, most modern political systems are generally labelled as democratic or authoritarian depending on the degree and kind of human rights guaranteed to the citizens. In an ideal democratic political system, the individual’s personal liberties and restraints, or rights and duties would be so organized that the rights and duties of others are not jeopardized. In other words, in such apolitical system, every individual should enjoy the maximum freedoms to do as he pleased, compatible with the rights of others to do the same. In authoritarian political system, the individual political rights are compromised, allegedly to serve the collective or social human rights of the nation. There are many reasons why governments are created by human beings. Social and political theorists and politicians have answered this perennial issue. Among the many useful functions that governments serve in modern times many of them are concerned directly or indirectly with promoting and protecting human rights of the individuals. Governments serve many functions, such as community and nation building, protecting property and other rights, promoting economic efficiency and growth, promoting other public goods like public parks, roads, light houses, etc., protecting environment, ensuring national defense and advancing social justice. Modern governments promote social justice by redistributing wealth and other resources between citizens. Some states like India have established a huge corpus of protective discrimination laws.

A Comparative Social Study among Artisanal Subsistence Marine Fishers of Sundarbans, Paradeep and Chennai

This paper does a comparative study of the socio-economic condition of the artisanal subsistence marine fishers of the three locations of India namely Sundarbans, Chennai and Paradeep. The small-scale artisanal marine fishers of Chandrapur, Gobindapur, Kalinagar, Ganeshpur villages of Kakdwip Subdivision, Sundarbans along with that of Badakalikhada, Bijaychandrapur, Light House and Kharinali, of Paradeep and Nochi Nagar, Light House, Foreshore Estate, Mandaveli, Mylapore of Chennai were asked the standardised questions. Sundarbans, Paradeep and Chennai have three distinct socio-economic conditions prevailing due to the privatisation of the fishery industry and the distinct difference in income.The purpose of this study is to find the socio-economic condition of the artisanal marine fishers of the Sundarbans, Paradeep and Chennai. A descriptive rapid sampling method has been followed, where the fishers have been questioned about their respective socio-economic status. The paper studies the income difference and the effect of the usages of motorised boats in two three-year slots 2015-2018 and 2018-2020 affluence due to more exposure to the technical changes. The study found that the Chennai fishers were more adept to take the advantage of the new technologies of marine fishing thus far more economical stable, the Paradeep fishers were second in economic stability due to their comparative adaptability. The Sundarbans fishers were least adept with the technological changes in marine fishing, consequently they are least affluent.