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47 results for “Umar A. Umar”
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Research ArticleOpen accessIn the author namesAnalysis of The Heat Island Phenomenon in Makassar, South Sulawesi, IndonesiaRosmini Maru, Ichsan Invanni Baharuddin, Ramli Umar et al.Urban Heat Island phenomenon (UHI) is one of the city micro-climate phenomenon that mostly hit many big cities in the World, including Makassar, Indonesia. Therefore, this study aimed to analyze the phenomenon of UHI and UHII in Makassar and the surrounding areas. The method used in this study is the analysis of primary data through measurements taken directly to the … …American Journal of Applied Sciences, Vol. 12, Issue 9 · 23 Sep 2015 · 8,055 accessesView PDFCite
Research ArticleOpen accessIn the author namesPhysic-Geographic Factors of Oil Development in the Chechen RepublicUmar Tashadievich Gayrabekov, Alexey Nikolaevich Gunja, Tumisha Khamidovna BachaevaOil development in the Chechen Republic for a long time has led to formation of widespread and inwardly heterogeneous area of oil development business impact on the natural complexes in the neighborhood. Therefore, authors have set the goal of detecting physic-geographical factors of the area where oil has been intensively developed for almost two centuries. The research made by the … …American Journal of Environmental Sciences, Vol. 10, Issue 6 · 16 Jan 2015 · 7,622 accessesView PDFCite
Research ArticleOpen accessIn the author namesCOMPARATIVE STUDY ON ENERGY CONSUMPTION IN DYNAMIC WINDOW SECURED IMPLICIT GEOGRAPHIC FORWARDING ROUTING PROTOCOLAbubakar Idris Umar, Zurina Mohd HanapiAn Ideal WSNs should operate with the least possible energy required in order to increase the lifetime of the sensor nodes and at the same time, ensure network connectivity. But the Inherent power limitation makes power-awareness a critical requirement for WSN, this calls for the need to manage energy in sensor nodes. Also In order to ensure successful transmission of … …Journal of Computer Science, Vol. 10, Issue 9 · 9 Apr 2014 · 6,859 accessesView PDFCite
Research ArticleOpen accessIn the author namesA SURVEY: PARTICLE SWARM OPTIMIZATION-BASED ALGORITHMS FOR GRID COMPUTING SCHEDULING SYSTEMSFaruku Umar Ambursa, Rohaya LatipBio-inspired heuristics have been promising in solving complex scheduling optimization problems. Several researches have been conducted to tackle the problems of task scheduling for the heterogeneous and dynamic grid systems using different bio-inspired mechanisms such as Genetic Algorithm (GA), Ant Colony Optimization (ACO), Particle Swarm Optimization (PSO). PSO has been proven to have a relatively more promissing performance in dealing … …Journal of Computer Science, Vol. 9, Issue 12 · 25 Nov 2013 · 6,656 accessesView PDFCite
Research ArticleOpen accessIn the author namesImproving Client Internal Capability to Monitor Public-Private Partnerships Projects: A ReviewNoor Amila Wan Abdullah Zawawi, Arazi Idrus, Abdullahi Ahmed Umar, Mohd Faris KhamidiPublic-Private Partnerships (PPP) or Private Finance Initiatives (PFI) are increasingly becoming very popular with governments across the globe for the provision of public infrastructure and services. When contracted, the public sector client believing the private sector will act in accordance with ‘bounded rationality’, ignores the constant monitoring and review process which is an integral part of any project. However, the … …American Journal of Engineering and Applied Sciences, Vol. 5, Issue 4 · 12 Feb 2013 · 7,887 accessesView PDFCite
Research ArticleOpen accessIn the author namesInfluence of Oil Contamination on Geotechnical Properties of Basaltic Residual SoilZulfahmi Ali Rahman, Umar Hamzah, Mohd. Raihan Taha et al.Problem statement: Oil contamination due to accidental spillage or leakage brings hefty damage to the environments. It percolates steadily into subsurface environments and contaminates the soil and water system. Hydrocarbon contamination has not just affected the quality of the soil but will also alter the physical properties of oil-contaminated soil. Approach: This study presented the geotechnical properties of oil-contaminated soils … …American Journal of Applied Sciences, Vol. 7, Issue 7 · 31 Jul 2010 · 10,265 accessesView PDFCite
Research ArticleOpen accessIn the author namesWellbore Surveying While Drilling Based on Kalman FilteringMahmoud ElGizawy, Aboelmagd Noureldin, Jacques Georgy et al.Problem statement: Oil and gas are global fuels obtained primarily from drilling wells in underground terrestrial reservoirs. Vertical drilling is preferred because of its simplicity and therefore low cost, but subsurface targets can often be procured only by directing the wellbore along predefined non-vertical trajectories. For instance, directional drilling must be employed to reach locations inaccessible to the drilling rig, … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 2 · 30 Jun 2010 · 8,577 accessesView PDFCite
Research ArticleOpen accessIn the author namesReport on Mammalian Fossils of Chinji Formation, Dhulian, PakistanMuhammad Akbar Khan, Abdul Ghaffar, Zulfiqar Ali et al.Twenty mammalian fossil specimens of varying preservational state are described from the Chinji Formation of Dhulian, Pakistan. The remains described in this study are all teeth and represent the Proboscidea, Perissodactyla and Artiodactyla. All the dental specimens are new variants recorded here for the first time. Pliotriplopus dhulianensis is new to science having small size and absence of crista than … …American Journal of Applied Sciences, Vol. 2, Issue 12 · 31 Dec 2005 · 7,274 accessesView PDFCite
Research ArticleOpen accessIn the author namesCytotoxicity Evaluation of Curcumin-FITC Conjugates in Granulosa Cells Isolated from Ovarian Follicles of Kampung Chicken (Gallus gallus domesticus)Sukarman Hadi Jaya Putra, Mansur S, UmarudinLinking curcumin to fluorescein isothiocyanate (FITC) results in a hybrid fluorescent marker (curcumin-FITC) that exhibits improved stability and sensitivity in detection. This study sought to evaluate the biological safety and cytotoxic effects of curcumin-FITC on granulosa cells obtained from ovarian follicles (2-5 mm, F1-F4 stage) of Kampung chickens. Following fluorescent labeling with different concentrations of curcumin-FITC (0-100 μg/mL), cell viability … …OnLine Journal of Biological Sciences, Vol. 26, Issue 2 · 14 May 2026 · 1,497 accessesView PDFCite
Research ArticleOpen accessIn the author namesOn the Design and Construction of a Dual Axis Solar Tracker Prototype for a Dish Concentrator using ATMega3298P MicrocontrollerAlbright Abu Edet, Samaila Umaru, Isah IbrahimThe desire for reliable power supply is the reason for further research into alternative sources of power. Although solar tracking is not a new technology, yet solar harvesters still suffer low efficiency due to the intermittence of solar insolation. Thus many smart systems have been designed to maximise solar harvesters. Among the systems is the dual axis solar tracking system. … …Journal of Mechatronics and Robotics, Vol. 5, Issue 1 · 21 Apr 2021 · 7,248 accessesView PDFCite