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98 articles for “cluster analysis”
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Research ArticleOpen accessIn the abstractEnhanced Clustering Techniques for Hyper Network Planning using Minimum Spanning Trees and Ant-Colony AlgorithmLamiaa Fattouh IbrahimProblem statement: The process of network planning is divided into two sub steps. The first step is determining the location of the Multi Service Access Node (MSAN). The second step is the construction of subscriber network lines from MSAN to subscribers to satisfy optimization criteria and design constraints. Due to the complexity of this process artificial intelligence and clustering techniques … …Journal of Computer Science, Vol. 7, Issue 3 · 9 Mar 2011 · 6,813 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffects of an Educational Scenario Exercise on Participants' Competencies of Systemic ThinkingSimon BurandtProblem statement: Education for sustainable development (ESD) aims to shape key competencies of individuals and therefore needs methods to enable learners to acquire these competencies. Systemic thinking can be regarded as a meta-competency in ESD, because it contains many important aspects found in most key competencies of ESD. Scenario analysis is described as a learning environment that fosters the acquisition … …Journal of Social Sciences, Vol. 7, Issue 1 · 18 Dec 2010 · 8,738 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Ethical and Non Ethical Mutual Funds ComparisonRosa Adamo, Angela Coscarelli, Domenica Federico, Antonella NotteProblem statement: One of the astonishing new developments in the financial community is the rise of ethical investments during the last decade. Particularly, the recent financial crisis has determined a major attention towards an ethically oriented finance based on social investments and environmental benefits that can create greater corporate crisis prevention. Because of the sheer size and importance of the … …American Journal of Economics and Business Administration, Vol. 2, Issue 4 · 28 Nov 2010 · 9,508 accessesView PDFCite
Research ArticleOpen accessIn the abstractVegetation Analysis of Sutan-Chay Basin in ArasbaranT. Ebrahimi Gajoti, V. Haciyev, A. Javanshir et al.Problem statement: Plants associations differ in relation to environmental gradients. Therefore, it is necessary to study the interaction between ecological factors and vegetation. Approach: In this study vegetation and flora of Sutan-Chay Basin in Arasbaran was investigated using Braun Blanquet method as physiognomic floristic. Sampling of soil and vegetation was carried out by selecting areas with homogenous plant compositions. The … …American Journal of Agricultural and Biological Sciences, Vol. 5, Issue 3 · 30 Sep 2010 · 7,879 accessesView PDFCite
Research ArticleOpen accessIn the abstractExperimental Investigation of Cluster Bed-Form Formation Over Uniform SedimentMasoud Karbasi, Mohammad H. Omid, Javad FarhoudiProblem statement: Cluster microforms are a type of small scale bed-form found in the surface layer of some gravel bed rivers. These bed-forms are comprised of discrete, organized groupings of particles that sit above the average elevation of the surrounding bed. As part of the structural organization of the bed, clusters are believed to impact the local dynamics of the … …American Journal of Applied Sciences, Vol. 7, Issue 8 · 31 Aug 2010 · 7,874 accessesView PDFCite
Research ArticleOpen accessIn the abstractApplication of Statistical Procedures for Analysis of Genetic Diversity in Domestic Animal PopulationsM. R. Nassiry, A. Javanmard, Reza TohidiProblem statement: A wide range of studies for the assessment of genetic diversity in livestock breed were conducted using genetic distance. For high-accuracy and unbiased estimation sampling methods, criteria of choosing type of DNA markers, distance measurement strategies, cluster analysis will be important for any genetic diversity projects. Approach: Main objective of this short review is focusing on application statistical … …American Journal of Animal and Veterinary Sciences, Vol. 4, Issue 4 · 31 Dec 2009 · 7,646 accessesView PDFCite
Research ArticleOpen accessIn the abstractReducing Broadcast Overhead Using Clustering Based Broadcast Mechanism in Mobile Ad Hoc NetworkN. Karthikeyan, V. Palanisamy, K. DuraiswamyProblem statement: Network wide broadcasting is an important function in Mobile Ad Hoc Networks (MANET), which attempts to deliver packets from a source node to all other nodes in the network. Broadcasting is often very useful for route discovery, naming, addressing and helping multicast operations in all kinds of networks. For designing broadcast protocols for ad hoc networks, one of … …Journal of Computer Science, Vol. 5, Issue 8 · 31 Aug 2009 · 7,031 accessesView PDFCite
Research ArticleOpen accessIn the abstractMolecular Characterization of Fusarium Oxysporum F. Sp. Cubense of BananaS. K. Leong, Z. Latiffah, S. BaharuddinProblem statement: Morphological characterization of Fusarium species which emphasize on microscopic and cultural characteristics are not sufficient to characterize Fusarium Oxysporum F. sp. Cubense (FOC) from banana as these characteristics could easily influence by environmental factors. As an alternative molecular methods were used to characterize and to assess genetic variation of FOC from different banana cultivars. Knowledge on the genetic … …American Journal of Applied Sciences, Vol. 6, Issue 7 · 31 Jul 2009 · 9,267 accessesView PDFCite
Research ArticleOpen accessIn the abstractGenetic Diversity of Red Chittagong Cattle Using Randomly Amplified Polymorphic DNA MarkersMohammad Masud Rana Mufti, Mst. Parvin Mostari, Gautam Kumar Deb et al.Problem statement: Red Chittagong Cattle (RCC) is a potential genetic resource in Bangladesh having dairy potentialities, high resistance to disease and survive harse environmental condition while require low input supply. This resource is now disappearing due to indiscriminate crossing with other local and exotic cattle. To conserve this resource, find out the genetic diversity of RCC is prime concern. Approach: … …American Journal of Animal and Veterinary Sciences, Vol. 4, Issue 1 · 17 Mar 2009 · 8,680 accessesView PDFCite
Research ArticleOpen accessIn the abstractGeographic Distribution and Genetic Analysis of Physiological Racesof Setosphaeria turcica in Northern ChinaJingao Dong, Yongshan Fan, Xiumei Gui et al.Five hundreds and forty-six isolates of Setosphaeria turcica, the causal agent of Northern Corn Leaf Blight, were collected in 61 corn-growing locations throughout six provinces of Northern China during 2000-2002, to determine their pathogenicity on two sets of host differentials: OH43/Huangzao4, OH43Ht1Huangzao4Ht1, OH43Ht2/Huangzao4Ht2, OH43Ht3/Huangzao4Ht3 and OH43HtN/Huangzao4HtN. The isolates were grouped into 13 different physiological races (0, 1, 12, 3, 13, … …American Journal of Agricultural and Biological Sciences, Vol. 3, Issue 1 · 31 Mar 2008 · 8,806 accessesView PDFCite