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419 articles for “R-Tree”

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Research ArticleOpen accessIn the abstractA Robust Recognition System for Pecan Weevil using Artificial Neural NetworksSaleh Mufleh Al-SaqerProblem statement: Pecan Weevil is a widely found pest among pecan trees and these pests are known to cause significant damage to the pecan trees resulting in enormous annual losses to pecan growers. Traditional identification techniques for pecan weevil include traps with pheromones to detect the infestation of these pests. However, these traditional methods require expensive labor hours to set-up … …American Journal of Applied Sciences, Vol. 9, Issue 9 · 14 Jul 2012 · 6,836 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Reliable Identification System for Red Palm WeevilSaleh Mufleh Al-SaqerProblem statement: Red Palm Weevil (RPW) is a widely found pest among palm trees and is known to cause significant losses every year to palm growers. Existing identification techniques for RPW comprise of using traps with pheromones to detect these pests. However, these traditional methods are labor-intensive, expensive to implement and unreliable for early detection of RPW infestation. Early detection … …American Journal of Applied Sciences, Vol. 9, Issue 8 · 18 Jun 2012 · 7,020 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Water Demand Management by Monitoring the Technology Performance and the Water Use EfficiencyFraj ChemakProblem statement: Given the climate constraints and the limited resources, Tunisia has developed the irrigated sector in order to diversify the agricultural production and to meet the food needs of the population. Today the policy of water supply reaches its limits and the efforts should be turned to the management of the water demand. Within this context, this research aims … …American Journal of Environmental Sciences, Vol. 8, Issue 3 · 23 Apr 2012 · 7,162 accessesView PDFCite
Research ArticleOpen accessIn the abstractSupport Vector Machine Based Red Palm Weevil (Rynchophorus Ferrugineous, Olivier) Recognition SystemGhulam Mubashar Hassan, Saleh Mufleh Al-SaqerProblem statement: Red palm weevil (Rynchophorus Ferrugineous, Oliveir) is an insect which threatens the existence of palm trees. The proposed research is to develop a RPW identification system using Support Vector Machine method. The problem is to extract image features from an image and using SVM to find out the existence of RPW in an image. Approach: Images are snapped … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 1 · 24 Jan 2012 · 7,737 accessesView PDFCite
Research ArticleOpen accessIn the abstractSecondary Metabolite Changes in Pecan (Carya illinoensis) Tissue Damaged by Euplatypus segnis Chapuis and Associated FungiRamon Alvidrez-Villarreal, Francisco Daniel Hernandez-Castillo, Oswaldo Garcia-Martinez et al.Problem statement: The borer insect Euplatypus segnis Chapuis is associated to Fusarium solani, Fusarium oxysporum, Alternariaalternata and Botryodiplodia theobromae fungi which produce regressive death in pecan (Carya illinoensis) trees. In the Mexico northern have been reported loses estimatesof more than 20% in production by the combination of insects and phyto-pathogen organisms. It also has been observed that some trees can … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 4 · 31 Dec 2011 · 8,179 accessesView PDFCite
Research ArticleOpen accessIn the abstractSeasonal Population Dynamics of the Asian Citrus Psyllid, Diaphorina citri Kuwayama in SarawakStephen Leong Chan Teck, Abang Fatimah, Andrew Beattie et al.Problem statement: Effective control of phytophagous pests requires a thorough understanding of their seasonal population dynamics, dispersion behavior, natural enemy activity and climate. To date, although very little detail information had been published on the ecology of Diaphorina citri. The objective of this investigation was to test through field experiment the hypothesis that the major factors influencing local D. citri … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 4 · 27 Dec 2011 · 9,553 accessesView PDFCite
Research ArticleOpen accessIn the abstractRed Palm Weevil (Rynchophorus Ferrugineous, Olivier) Recognition by Image Processing TechniquesSaleh Mufleh Al-Saqer, Ghulam Mubashar HassanProblem statement: Red palm weevil is the most destructive insect for palm trees all over the world. This research is part of developing an automated wireless red palm weevil detection and control system. The focus for this study was to develop red palm Weevil recognition system which can detect RPW in an image and can be used in wireless image … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 3 · 4 Aug 2011 · 9,103 accessesView PDFCite
Research ArticleOpen accessIn the abstractArtificial Neural Networks Based Red Palm Weevil (Rynchophorus Ferrugineous, Olivier) Recognition SystemSaleh Mufleh Al-Saqer, Ghulam Mubashar HassanProblem statement: The most dangerous insect for the existence of palm trees in entire world is Red Palm Weevil (scientifically named as Rynchophorus Ferrugineous, Oliveir). The proposed research is conducted to develop an identification system for Automated Wireless Red Palm Weevil Detection and exterminated. The core idea of the proposed research is to develop software that can utilize image processing … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 3 · 4 Aug 2011 · 9,190 accessesView PDFCite
Research ArticleOpen accessIn the abstractForest Structure Assessment of a Rehabilitated ForestRoland Kueh Jui Heng, Nik Muhamad Abd. Majid, Seca Gandaseca et al.Problem Statement: Forest structure assessment provides information on forest succession, dynamics, biodiversity and health which are important but only few information is available on rehabilitated forest. The objective of this study was to assess the forest structure of selected age stands at a rehabilitated forest situated in Universiti Putra Malaysia Bintulu Sarawak Campus, Sarawak, Malaysia. Approach: Four 20×20) m plots … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 2 · 6 Jun 2011 · 9,098 accessesView PDFCite
Research ArticleOpen accessIn the abstractNitrogen Fixing Legumes in the Plant CommunitiesMohammed A.A. Al-FredanProblems statement: Numerous authors have used energetic to explain the ecological success of N-fixing plants. Legume biodiversity assessment, species dynamics, nitrogen fixation monitoring and environment impact assessment of these ecological events in Al-Hassa Oasis, Saudi Arabia are rare and need to be continuous and more frequent. Approach: Thus the objectives of this study were to analyze legume abundance within and … …American Journal of Environmental Sciences, Vol. 7, Issue 2 · 26 May 2011 · 7,402 accessesView PDFCite