Faculty of Applied Science: Recent submissions

Now showing items 61-80 of 384

ASSESSING THE SURFACE WATER QUALITY IN ANURADHAPURA, SRI LANKA

Fonseka, G.K.D.; Amarathunga, A.A.D.; Pemarathna, S. (Faculty of Applied Science, University of Vavuniya, 2023-10-25)

The major tanks in Anuradhapura district such as Kalawewa, Rajanganaya, Nachchaduwa, Nuwarawewa, Tissawewa are interconnected as cascade system. These tanks mainly receive water from Mahaweli river diverted towards the ...
RICE HUSK CHARCOAL WASTE TO TREAT THE WASTEWATER DISCHARGED BY RUBBER RECLAMATION INDUSTRY

Thilanka, C.; Devaisy, S. (Faculty of Applied Science, University of Vavuniya, 2023-10-25)

This study addresses the substantial environmental challenges associated with the rubber reclamation process, characterized by the generation of two prominent waste streams: wastewater and waste burnt rice husk, termed ...
TREATMENT OF COIR MILL WASTEWATER USING ACTIVATED CHARCOAL

Amarasuriya, A.P.S.D.; Karunarathne, D.; Devaisy, S. (Faculty of Applied Science, University of Vavuniya, 2023-10-25)

The coir mill industry plays a significant role in the national economy, but its wastewater poses a substantial environmental challenge due to its high electrical conductivity (EC), high chemical oxygen demand (COD) and ...
Mangifera indica LEAVES AS A BIOSORBENT TO TREAT MUNICIPAL WASTEWATER IN VAVUNIYA DISTRICT

Rishaya, N.M.; Devaisy, S. (Faculty of Applied Science, University of Vavuniya, 2023-10-25)

The rapid urbanization in Vavuniya town resulted in high volumes of urban drainage which collectively entered into Vavuniya tank located in the heart of Vavuniya town area. The existing treatment system for urban drainage ...
SMART FIRE ALARM SYSTEM: AN IOT IMPLEMENTATION FOR ENHANCED SAFETY AND MONITORING

Srivathsan, S. (Faculty of Applied Science, University of Vavuniya, 2023-10-25)

This study explores the transformative possibilities of the Internet of Things (IoT) by introducing an innovative fire alarm system that redefines safety protocols and emergency response mechanisms through the synergistic ...
PARITY CONSTRAINTS IN GRAPH LABELINGS: INVESTIGATING THE INCOMPATIBILITY OF ODD HARMONIES IN GRAPHS WITH ODD LOOPS

Dilshan, M.M.C.; Perera, A.A.I. (Faculty of Applied Science, University of Vavuniya, 2023-10-25)

This paper introduces a fundamental theorem concerning the existence of odd harmonies labeling in graphs. The theorem investigates the properties of graphs with odd loops and provides insight into the relationship between ...
A NOVEL GRAPH THEORY TECHNIQUE TO SOLVE ASSIGNMENT PROBLEMS

Niluminda, K.P.O.; Ekanayake, E.M.U.S.B. (Faculty of Applied Science, University of Vavuniya, 2023-10-25)

The Assignment Problem (AP) is a mathematical optimization problem that has to do with allocating resources to projects in the best possible way. Subject to limitations like resource availability or task requirements, the ...
THE INFLUENCE OF INDOOR AIR QUALITY ON EMPLOYEE PRODUCTIVITY IN GREEN BUILDING INTERIORS: A CASE STUDY OF THE APPAREL INDUSTRY AT MAS THURULIE, SRI LANKA

Kariyawasam, T.; Samarasinghe, A. (Faculty of Applied Science, University of Vavuniya, 2023-10-25)

This study delved into the crucial relationship between Indoor Air Quality (IAQ) and employee productivity, specifically within the Apparel Industry of Sri Lanka, with a notable focus on the renowned MAS Thurulie. Employing ...
REMOVAL OF WATER HARDNESS FROM GROUNDWATER USING LEMON PEEL DERIVED BIOCHAR

Hafsa, H.N.F.; Devaisy, S. (Faculty of Applied Science, University of Vavuniya, 2023-10-25)

Water hardness is the amount of dissolved calcium and magnesium ions in the water. Problems with hardwater include toughening of skin and hair, spots on sinks and clothes, scaling in boilers, washing machines, and pipes, ...
DETECTION OF UAV-BASED ESTUARINE MORPHODYNAMICS IN SOUTH EASTERN COAST OF SRI LANKA

Nijamir, K.; Iyoob, A.L.; Rinos, M.H.M.; Zahir, I.L.M.; Ameer, M.L.F.; Kaleel, M.I.M.; Madurapperuma, B. (Faculty of Applied Science, University of Vavuniya, 2023-10-25)

Morphological changes in beaches occur when a river breaches and migrates alongshore. The present study investigates the movement of the ephemeral river channel across the Oluvil beach, forming a shallow pool and foredunes, ...
EFFECT OF DIFFERENT LENGTH OF CUTTING AND ANGLE OF PLANTING ON ROOTED CUTTING PRODUCTION OF SELECTED ORNAMENTAL PLANTS

Shalomitha, L.; Selvaskanthan, S. (Faculty of Applied Science, University of Vavuniya, 2023-10-25)

Floriculture industry is popular throughout the world and it is high income generating agribusiness in Sri Lanka. The key floriculture product varieties exported from Sri Lanka are decorative foliage and rooted or unrooted ...
EFFECT OF STOCKING DENSITIES ON SURVIVAL RATE AND GROWTH PERFORMANCE OF ENDEMIC OLIVE BARB (Systomus spilurus) POST-LARVAE IN CEMENTED TANKS

Susanthi, D.; Susruthan, V.; Mudalige, A.R. (Faculty of Applied Science, University of Vavuniya, 2023-10-25)

Certain Sri Lanka’s fishes are currently considered as endangered due to increased anthropogenic pressure on natural ecosystems. The present study aimed to study the effect of stocking density on survival and growth ...
SPENT MUSHROOM SUBSTRATE AS A GROWING MEDIA FOR CHILI (Capsicum annum) SEEDLINGS

Sathyapriya, S.; Vijitha, V.; Wimalachandra, R.D.M.R.K. (Faculty of Applied Science, University of Vavuniya, 2023-10-25)

Mushroom can be cultivated with different substrates, while the disposal of Spent Mushroom Substrate (SMS) is one of the major problems found in this cultivation. Improper methods of SMS disposal may contribute to several ...
DEVELOPMENT AND QUALITY EVALUATION OF COOKIES INCORPORATED WITH BLACK SEED (Nigellasativa)

Abdullah Mohamed Arkam, A.A.H.; Thenabadu, M. (Faculty of Applied Science, University of Vavuniya, 2023-10-25)

This study aimed to develop and assess physicochemical and sensory attributes of cookies enriched with black seed (Nigella sativa) oil. Black seed oil contains polyunsatu rated fatty acids, tocopherol, and bioactive ...
DETERMINATION OF OPTIMUM APPLICATION RATES OF BIOCHAR FOR IMPROVED MACRONUTRIENT RETENTION IN COCONUT-GROWING SOILS

Udumann, S.S.; Shamila, S.K.; Dissanayaka, D.M.N.S.; Nuwarapaksha, T.D.; Dissanayake, D.K.R.P.L.; Atapattu, A.J. (Faculty of Applied Science, University of Vavuniya, 2023-10-25)

This study aimed to determine the optimal biochar application rates to improve soil nutrient reserves and fertility in coconut-growing soils in Sri Lanka. The experiment utilized two soils commonly associated with ...
CATCH COMPOSITION AND SEASONAL VARIATIONS OF SHRIMP TRAWL LANDINGS WITH NEW SPECIES RECORDS OFF GURUNAGAR COAST, NORTHERN SRI LANKA

Samanthi, I.; Arthiyan, S.; Harichandra, K.; Ragavan, N.; Kuganathan, S. (Faculty of Applied Science, University of Vavuniya, 2023-10-25)

The present study aimedtoidentify and assess the shrimp species diversity in the marine trawl fishery of Jaffna, Sri Lanka, where detailed investigations were lacking. The research was conducted through fortnightly field ...
Solar energy as a sustainable source of energy for industrial applications in Sri Lanka: a conceptual mini-review

Kannan, N.; Asharp, T. (Faculty of Applied Science, University of Vavuniya, 2023-08)

The world’s primary energy demand has increased significantly due to the industrial revolution and population growth, which create the demand for primary energy. The COVID-19 pandemic situation significantly damages the ...
Regular and Normal Spaces for certain Generalized Open Sets in Ideal Topological Spaces

Rajitha, M.; Elango, P. (Faculty of Applied Science, University of Vavuniya, 2023-08)

In this paper, we study four types of generalized open sets: Pre-I-open sets, Semi-I-open sets, α-I-open sets, and b-I-open sets, in ideal topological spaces and define the regular and normal spaces for these generalized ...
An Actuarial Comparison of Loss-Ratio-Bornhuetter-Ferguson and Classical Chain Ladder Techniques in Insurance Loss Reserving: A Computational Approach

Michael, O.G. (Faculty of Applied Science, University of Vavuniya, 2023-08)

An insurance firm promises to reimburse benefits to the insured when unforeseen events evolve. When such contingencies arise, the underwriter has a liability to pay the claim through loss reserving techniques. The estimation ...
Land Evaluation and Crop Suitability Analysis – A Case Study on Karachchi Divisional Secretariat, Kilinochchi District, Sri Lanka

Aginthini, A.; Udayakumara, E.P.N.; Arasakesary, S.J.; Banujan, K. (Faculty of Applied Science, University of Vavuniya, 2023-08)

Agricultural development in any region needs knowledge about the soils, their properties, and spatial distribution. Crop-land maps created using land evaluation are essential for land management. The research was conducted ...

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