2016-2017

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    NUMERICAL SIMULATION OF FORCED CONVECTION IN OIL SANDS USING LATTICE BOLTZMANN METHOD
    (2016) Fernandes, Ignatius
    Lattice Boltzmann method is used to simulate forced convection in oilsands (low permeable porous geometries). Fluid flows through a sandstone look alike square geometry with left wall of the geometry kept at higher temperature compared to other walls. Investigation is carried out to study influence of increased temperature on flow properties by observing the variation in velocity and temperature profiles for various permeability and porosity values, which were varied to match the geometrical properties of oil sands. Boundary conditions and the relaxation parameter are suitably defined to achieve convergence for low values of permeability. Simulation was carried out at low Reynolds number, which however, can be extended to higher values of Reynolds number
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    On nearly distance magic graphs
    (2017) Godinho, Aloysius
    Let G = (V, E) be a graph on n vertices. A bijection f ∶ V → {1, 2, . . . , n} is called a nearly distance magic labeling of G if there exist a positive integer k such that ∑x∈N(v) f(x) = k or k +1 for every v ∈ V . The constant k is called magic constants of the graph and the graph which admits such a labeling is called a nearly distance magic graph. In this paper we present several basic results on nearly distance magic graphs and compute the magic constant k in terms of the fractional total domination number of the graph.
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    Some distance antimagic labeled graphs
    (2016) Godinho, Aloysius
    Abstract. Let G be a graph of order n. A bijection f : V (G) −→ {1, 2, . . . , n} is said to be distance antimagic if for every vertex v the vertex weight defined by wf (v) = P x∈N(v) f(x) is distinct. The graph which admits such a labeling is called a distance antimagic graph. For a positive integer k, define fk : V (G) −→ {1 + k, 2 + k, . . . , n + k} by fk(x) = f(x) + k. If wfk (u) 6= wfk (v) for every pair of vertices u, v ∈ V , for any k ≥ 0 then f is said to be an arbitrarily distance antimagic labeling and the graph which admits such a labeling is said to be an arbitrarily distance antimagic graph. In this paper, we provide arbitrarily distance antimagic labelings for rPn, generalised Petersen graph P(n, k), n ≥ 5, Harary graph H4,n for n 6= 6 and also prove that join of these graphs is distance antimagic.
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    Lattice Boltzmann Simulation of Forced Convection in Non-Newtonian Fluid Through Low Permeable Porous Media
    (2016) Fernandes, Ignatius
    Numerical simulation is carried out to study forced convection in non-Newtonian fluids flowing through low permeable porous media like sandstones and sand. Simulation is carried out using lattice Boltzmann method for both shear-thinning and shear-thickening, by varying the power-law index from 0.5 to 1.5 in Carreau-Yasuda model. Parameters involved in lattice Boltzmann method and Carreau model are identified to achieve numerical convergence. Permeability and porosity are varied in the range of 10 10
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    Socio-Economic Contribution of Beach Shacks in Goa to the Shack Owners – An Empirical Study
    (2016) Barretto, Helic
    Goa, the smallest State of India by area, attracts each year millions of tourists both domestic as well as foreign. The inflow of tourists provides employment, income and a higher standard of living to the people of Goa. It also promotes investment and infrastructural development in the State. A few industries in the State are totally dependent on tourism for their survival and one of them is beach shacks. Beach shacks in Goa are ‘temporary restaurants, located on the beach, serving predominantly Goan food and beverages to the tourists every year’. They are erected by using locally available eco-friendly materials and are open for business during the tourist season each year. The present paper is based on a study conducted during the month of April and May 2016. The sample size considered are 32 shacks located at Baga, Batalbatim, Benaulim, Calangute, Colva, Mobor and Palolem beaches in Goa. The data was personally collected by preparing and administering a structured questionnaire to the shack owners. The Statistical tools used are crosstab and Multiple Regression Analysis. The results suggest that, shack improves communication skills, contributes in acquiring capital assets and helps in improving the standard of living of the shack owners.
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    Opinion of Students of Goa (India) Towards Advertisements: An Investigational Report
    (2016) Costa, Juao
    Television advertisements are powerful tools which influences the public. Most advertisements portray glamorous or larger than life scenario which the teenagers end up watching and comparing with their own lives. These advertisements only generate false values and propagate lifestyles inconsistent with real life. The study was undertaken to find out the opinion of Goan ( India) students towards advertisements. It was observed that there is no significant difference among the students in their opinion towards advertisements. Study was conducted on more than 2000 students from Goa ( South and North) using frequencies, mean score and t test. . It was seen that students in general are not carried away by the exaggerated, deceptive and any other form of advertising. The students have showed a great deal of maturity
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    A Study on the Attitude of Goan (India) Students Towards Advertising
    (2016) Costa, Juao
    The purpose of advertisements is to enhance buyer’s response to products or services offered by the firm, thus increasing its profitability. Attitude is a learned predisposition to respond in the consistently favorable or unfavorable manner to advertising in general” While the influence of advertising on consumer behavior is inevitable, consumers generally hold quite negative attitudes towards it. The main objective of the artical is to study the attitude of the students towards advertisements. By using the Likert scale modified suitably, the data was collected. In all 2108, students from all over Goa were surveyed. It was seen that the attitude of the students towards advertisements is positive and matured. The statistical tools such as Independent sample ‘t’test and One way ANOVA were used to find out the validity of the statements and whether there is an association between the different categories of sample and the attributes. In spite of it being severely criticized, students still felt that advertisements should not be taken away from the TV
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    Tiatr: A New Form of Entrepreneurship in Goa – Problems and Prospects
    (2016) Costa, Juao
    Tiatr, which has a history of more than 100 years, is a type of musical theatre popular in the state of Goa onthe West coast of India as well as in Mumbai and with expatriate communities in the Middle East, London and other cities where Konkani speakers have a considerable presence. The dramas are performed mainly in the Roman Konkani dialects and include music, dancing and singing. Tiatr today revolves around social, religious and political themes. It is considered to be a mirror of Goan culture. The first original tiatr script was written and directed by JoãoAgostinhoFernandes, entitled “Belle de Cavel” or “SundoriCavelchi” in 1895 in Bombay and for all his consistent devotion and encouragement over fifty years, he was conferred the title “PaiTiatrist” (Father Tiatrist).Tiatr as a form of entrepreneurship has created direct as well as indirect employment for many artists as well as back stage support staff. Some families are fully dependent on this form of entrepreneurship for their livelihood. The economy of the state to a large extent is supported by this form of entertainment. Realizing its importance in the Goan economy, the government of Goa has devised various schemes financial as well as non-financial for the development of tiatr. However, it still needs the attention of policy makers as it has bright prospects, Goa being a tourist destination. The article tried to find out over a period of time how this form of entertainment evolved based on secondary data and through personal interaction with the producers of Tiatr.
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    Advertisements Through Student’s Point of View: A Study of Goan (India) Students
    (2016) Costa, Juao
    Advertiser’s primary mission is to reach prospective customers and influence their awareness, attitude, and buying behavior. They spend lot of money to keep individuals interested in their products. To succeed, they need to understand what makes potential customers to behave the way they do. The advertiser’s goal is to get enough relevant market data to develop accurate profile of buyers and to find the common group for communications. The main objective of the study was to understand the views of Goan students on advertisements. More than 2000 students across Goa from different classes were surveyed to collect the data. It was noticed that in general the views of the students towards advertisements is positive.
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    Advertising: Two Sides of the Same Coin – Experiential Reactions to T.V. Advertisements at Different Levels
    (2016) Costa, Juao
    The purpose of advertisements is to enhance buyer’s response to products or services offered by the firm, thus increasing its profitability. Attitude is a learned predisposition to respond in the consistently favorable or unfavorable manner to advertising in general” While the influence of advertising on consumer behavior is inevitable, consumers generally hold quite negative attitudes towards it. The main objective of the artical is to study the attitude of the students towards advertisements. By using the Likert scale modified suitably, the data was collected. In all 2108, students from all over Goa were surveyed. It was seen that the attitude of the students towards advertisements is positive and matured. The statistical tools such as Independent sample „t‟ test and One way ANOVA were used to find out the validity of the statements and whether there is an association between the different categories of sample and the attributes. In spite of it being severely criticized, students still felt that advertisements should not be taken away from the TV
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    A Case Study of the Economic Impact of Mining in Goa: Perceptions of the Reserved and General Population of a Mining Dependent Locality
    (2016) Falleiro, Savio P.
    Mining has been an important industry in Goa for years. Operations of the industry were suspended due to orders of the Hon. Supreme Court of India. Much has been documented on the positive and negative effects of mining-the same often done by extreme pro and anti mining activists. The present paper is based on a field-based study involving households of a locality substantially dependent on mining being in close proximity to mining centres. Considering that the locality has a large number of people from ‘reserved’ backgrounds, the paper attempts to find if there was any significant association between the economic issues related to mining and the SC/ST, OBC and General backgrounds of the residents. The study which makes use of chi-square analysis, lists very significant findings, including those concerning the ‘reserved’ sections of population, and involving issues related to net economic effect of mining, health problems, government assistance for SC/ST and OBC sections etc.
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    Economics of Yoga: Multi-Level Healthy Gains
    (2016) Falleiro, Savio P.
    Yoga has invariably been looked at as a healthy practice. While there is much literature available on the benefits of yoga in terms of health and wellness, the present article is an attempt to find the economic gains of yoga. The same are brought out in three parts: (i) in the context of ‘self’, i.e. in terms of curative and preventative benefits for a yoga practicing individual; (ii) in terms of benefits to the ‘workplace and/or organization’ promoting yoga, and (iii) in terms of commercial opportunities, i.e. benefits gained by serving yoga to ‘others’. The article concludes with suggestions for the healthy development of yoga.
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    Nature of Mobile Phone Usage Among College Students
    (2016-05) Falleiro, Savio P.
    Mobile phones have become an intrinsic part of the lives of a very large number of people, with ownership and usage ever increasing. Through a select review of literature, and with the help of findings of a field study involving randomly chosen college students in Goa (India), this paper brings forth insights related to mobile phone usage among students. Chi-square analysis has been done wherever appropriate. In spite of its limited scope, the field-study brings some interesting findings such as: (a) boys spend significantly more on mobile phones (usage bills) than girls; (b) students from self-financed programmes spend significantly more on mobile phone usage bills as well as on internet every month than students from government–aided programmes; and (c) Muslim respondents play significantly fewer games on mobile phones as compared to Hindus and Christians.