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Search Results: 1 - 10 of 6520 matches for " Alex Kyaruzi "
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Visions, Scenarios and Action Plans Towards Next Generation Tanzania Power System
Santos Kihwele,Kyeon Hur,Alex Kyaruzi
Energies , 2012, DOI: 10.3390/en5103908
Abstract: This paper presents strategic visions, scenarios and action plans for enhancing Tanzania Power Systems towards next generation Smart Power Grid. It first introduces the present Tanzanian power grid and the challenges ahead in terms of generation capacity, financial aspect, technical and non-technical losses, revenue loss, high tariff, aging infrastructure, environmental impact and the interconnection with the neighboring countries. Then, the current initiatives undertaken by the Tanzania government in response to the present challenges and the expected roles of smart grid in overcoming these challenges in the future with respect to the scenarios presented are discussed. The developed scenarios along with visions and recommended action plans towards the future Tanzanian power system can be exploited at all governmental levels to achieve public policy goals and help develop business opportunities by motivating domestic and international investments in modernizing the nation’s electric power infrastructure. In return, it should help build the green energy economy.
Cyanobacteria Composition and Impact of Seasonality on their In Situ Nitrogen Fixation Rate in a Mangrove Ecosystem Adjacent to Zanzibar Town
JJ Kyaruzi, MS Kyewalyanga, MHS Muruke
Western Indian Ocean Journal of Marine Science , 2003,
Abstract:
Power and Control in Knowledge-Intensive Firms: Post-Bureaucratic Firms and Enterprise Culture  [PDF]
Samuel Osei-Nimo, Imani Silver Kyaruzi
Open Access Library Journal (OALib Journal) , 2015, DOI: 10.4236/oalib.1101952
Abstract: This paper discusses the notions of “entrepreneurialism” and enterprising culture. In particular, it examines the significance of such discourses on the contemporary workplace and consequent impact on the individual worker’s identity and behaviour. Previous studies on Knowledge-Intensive Firms suggest that organisations are not entirely synonymous with post bureaucratic organisations, but mainly overlap it. It is revealed that majority of firms rely on “cultural or professional forms of control”. These forms of control are regarded to have dependence on an ideology of entrepreneurialism and enterprising culture. Thus, the issues of power relations and discourses in Knowledge-Intensive firms are primarily investigated in this study to expose and understand how the drive by organisations for the “enterprising” individual produces a worker who is self-regulating and self-disciplined. The paper includes an assessment of discourses from various organisational actors to shed light on the roles played by “an enterprise” as a principle of control or government in creating autonomous and productive subjects in the workplace and wider society.
Qualititative Analysis of Interface Behavior under First Phase Transition  [PDF]
Alex Guskov
Journal of Crystallization Process and Technology (JCPT) , 2012, DOI: 10.4236/jcpt.2012.21005
Abstract: At present there is no explanation of the nature of interface instability upon first order phase transitions. The well-known theory of concentration overcooling under directed crystallization of solutions and Mullins-Sekerka instability cannot account for the diversified liquid component redistribution during solid state transition. In [1-3], within the framework of the nonequilibrium mass transfer problem, it has been shown that there are regimes of the interface instability, which differ from the known ones [4-6]. Moreover, the instability theory of works [1-3] demonstrates a complete experimental agreement of the dependence of eutectic pattern period on interface velocity. However, it is difficult to explain interface instability within the framework of a general setting of the mass-transfer problem. This paper is de-voted to qualitative analysis of the phenomena that are responsible for interface instability. The phenomena are connected by a single equation. Qualitative analysis revealed a variety of different conditions responsible for instability of flat interface stationary movement upon phase transition. The type of instability depends on system parameters. It is important that interface instability in the asymptotic case of quasi-equilibrium problem setting is qualitatively different from interface instability in the case of nonequilibrium problem setting.
Social Media and Political Participation: An Investigation of Small Scale Activism in Greece  [PDF]
Alex Afouxenidis
Advances in Applied Sociology (AASoci) , 2014, DOI: 10.4236/aasoci.2014.41001
Abstract:

This paper discusses the possibilities and limitations of online activism. The example used to illustrate the above point provides some evidence that, on some occasions, civil society maybe mobilized through the use of the internet and the online public sphere, to organize more coherent and practical political demands. At the same time, it is also shown that the capacity of individuals to fully participate depends on previous offline experiences as well as a relatively higher degree of technical competence.

On Linear Analysis of the Movement of the Interface under Directed Crystallization  [PDF]
Alex Guskov
Advances in Chemical Engineering and Science (ACES) , 2014, DOI: 10.4236/aces.2014.42014
Abstract:

We present a detailed discussion of the boundary conditions of the directed crystallization problem, a formulation of the model considering temperature fields of external sources, the mechanism of attachment of particles to the growing solid surface, the influence of interphase component absorption on the phase distribution ratio of the components as well as the calculation of the period of the morphological interface instability which is made with due regard of all the aforementioned conditions.

Drawing on the “Lived Experience” —An Investigation of Perception, Ideation and Praxis  [PDF]
Alex Ashton
Art and Design Review (ADR) , 2014, DOI: 10.4236/adr.2014.23007
Abstract:

“When we do not have the words to say something, drawing can define both the real and unreal in visual terms” (Kovats, 2007: p. 8). The paper addresses the question: what is the relationship be- tween perceptual experience and its interpretation through drawing? It is proposed that drawing, as knowledge and experience, is a particular way of coming to know the world that is explicated within artistic practice. The research examines how drawing, through its expression of the con- crete and the imaginary, provides interconnected ways of orientating knowledge that contribute to a multifaceted understanding of the “lived experience” (Dilthey, 2010). The study draws on phi- losophy, in particular the writings of Maurice Merleau-Ponty, to consider the complexities and in- terconnections of mind, object and body that are experienced through drawing. A central tenet of the research is an examination of the role of the body in constituing and explicating experience. In considering how we, as objects, are integral to the world and its phenomena, it is proposed that our “sense experience” (Sentir) (Heidegger, 1962) furnishes us with the ability to enter into this world as sensate beings; to interact, affect and engage with the world in both time and space. Mau- rice Merleau-Ponty in an essay entitled “Eye and Mind”, first published in 1961 (Johnson, 1993), contends that it is through contemplating a connection between the “seer and the seen”, in a direct reference to artist and viewer, that our experience of the world is “opened up more fully” (Johnson, 1993: p. 124). That is, by being immersed in the visible, the concrete, through the body, the visible is not appropriated, but is instead revealed by the act of “looking”. The practice of drawing is a means through which the act of looking is evinced in a tangible form. Investigating

A t-Norm Fuzzy Logic for Approximate Reasoning  [PDF]
Alex Tserkovny
Journal of Software Engineering and Applications (JSEA) , 2017, DOI: 10.4236/jsea.2017.107035
Abstract: A t-norm fuzzy logic is presented, in which a triangular norm (t-norm) plays the role of a graduated conjunction operator. Based on this fuzzy logic we develop methods for fuzzy reasoning in which antecedents and consequents involve fuzzy conditional propositions of the form “If x is A then y is B”, with A and B being fuzzy concepts (fuzzy sets). In this study, we present a systemic approach toward fuzzy logic formalization for approximate reasoning. We examine statistical characteristics of the proposed fuzzy logic. As the matter of practical interest, we construct a set of fuzzy conditional inference rules on the basis of the proposed fuzzy logic. Important features of these rules are investigated.
A Fuzzy Logic Based Resolution Principal for Approximate Reasoning  [PDF]
Alex Tserkovny
Journal of Software Engineering and Applications (JSEA) , 2017, DOI: 10.4236/jsea.2017.1010045
Abstract: In this article, we present a systemic approach toward a fuzzy logic based formalization of an approximate reasoning methodology in a fuzzy resolution, where we derive a truth value of A from both values of B → A and B by some mechanism. For this purpose, we utilize a t-norm fuzzy logic, in which an implication operator is a root of both graduated conjunction and disjunction operators. Furthermore by using an inverse approximate reasoning, we conclude the truth value of A from both values of B → A and B, applying an altogether different mechanism. A current research is utilizing an approximate reasoning methodology, which is based on a similarity relation for a fuzzification, while similarity measure is utilized in fuzzy inference mechanism. This approach is applied to both generalized modus-ponens/modus-tollens syllogisms and is well-illustrated with artificial examples.
Distance Education at the Grassroots and Assessment Procedures. The Case of the University of Cape Coast, Ghana  [PDF]
Kwao Alex
Creative Education (CE) , 2019, DOI: 10.4236/ce.2019.101006
Abstract: Distance education is an innovative learning experience which focuses on learning technology with the aim of creating human capital by using delivery of lessons from highly accredited source to the learner. At the University of Cape Coast in Ghana, individuals from diverse backgrounds and organizations embark on distance learning who under normal circumstances would not have had access to attend classes in the mainstream. The compelling need to determine their success in various centres is determined by effective assessment procedures and programme evaluation. This depends on types, structures, tools, mode of delivery and assessment records. This paper therefore examines the academic underpinnings of what precisely occurs at the University of Cape Coast. The paper instigates an inquiry to draw attention to learning outcomes of the “new” academic environment which stakeholders are benefitting from. The investigation was a case study from selected centres of the Eastern region. It adopted the mixed approach with sample selection which involved 50 students, 30 course tutors and 5 course coordinators. Semi-structured interview and group discussion were used as validation tools. Analytical processes were through sequencing and concurrent procedures using descriptive statistics and discursive method as basis for generating data. Respondents claimed that assessment procedures were superb. However, both students and course tutors complained about continuous assessment component of Teacher Made Test which is entirely ignored. The recommendation was to adopt well defined assessment and evaluation strategies.
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