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259 results for “angle”
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Research ArticleOpen accessEvery word in the titleThe -863 TNF-α Polymorphism and Primary Open Angle Glaucoma in EgyptiansWalaa Bayoumie Abdulwahhab El Gazzar, Shaymaa Mohamed Abd El Rahman, Mohamed Nagy Elmohamady et al.Growing evidence indicates that TNF-alpha is involved in the pathogenesis of POAG in several ways, primarly by induction of retinal ganglion cells apoptosis and therefore optic nerve degeneration. TNF-alpha and POAG relationship has been studied at the genetic level with variable results in different populations. The transcription rate and the release of the TNF-alpha cytokine have been reported to be … …American Journal of Biochemistry and Biotechnology, Vol. 13, Issue 2 · 1 Jun 2017 · 7,356 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Performance of Maximum Likelihood, Spectral Angle Mapper, Neural Network and Decision Tree Classifiers in Hyperspectral Image AnalysisHelmi Zulhaidi Mohd Shafri, Affendi Suhaili, Shattri MansorSeveral classification algorithms for pattern recognition had been tested in the mapping of tropical forest cover using airborne hyperspectral data. Results from the use of Maximum Likelihood (ML), Spectral Angle Mapper (SAM), Artificial Neural Network (ANN) and Decision Tree (DT) classifiers were compared and evaluated. It was found that ML performed the best followed by ANN, DT and SAM with … …Journal of Computer Science, Vol. 3, Issue 6 · 30 Jun 2007 · 142,381 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleNumerical Investigation on Performance Improvement in Tube Inserted with Delta Winglets on Discrete Right-Angled Triangular PlatesAmnart Boonloi, Withada JedsadaratanachaiNumerical investigations on flow topology and heat transfer behavior in a round tube heat exchanger inserted with Delta Winglets (DW) on Discrete Right-angled Triangular Plates (DRTP) are performed. The influences of DW heights; b/D or BR = 0.05-0.25 and flow directions; DW with V-Downstream (DWVD) and DW with V-Upstream (DWVU), are studied for turbulent flow; Re = 3000-10,000. The finite … …Journal of Mathematics and Statistics, Vol. 13, Issue 1 · 16 Mar 2017 · 7,049 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleTracking Algorithm for Estimating the Orientation Angles of the Object Based on the Signals of Satellite Radio Navigation SystemAlexandr PerovIn the article, the theory of optimal filtering of information processes is used to synthesize optimal one-stage estimation algorithm for the object orientation angles using the signals of the satellite navigation system. The article also provides equations of optimal filtering, as well as their representation in the form of the tracking system comprising of an orientation angles discriminator and a … …American Journal of Applied Sciences, Vol. 12, Issue 12 · 7 Dec 2015 · 6,474 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Diesel Engine Converted to Sequential Port Injection Compressed Natural Gas Engine on the Cylinder Pressure vs Crank Angle in Variation Engine SpeedsSemin, Abdul Rahim Ismail, Rosli Abu BakarThe diesel engine converted to compressed natural gas (CNG) engine effect is lower in performance. Problem statement: The hypothesis is that the lower performance of CNG engine is caused by the effect of lower in engine cylinder pressure. Are the CNG engine is lower cylinder pressure than diesel engine? This research is conducted to investigate the cylinder pressure of CNG … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 1 · 31 Mar 2009 · 8,243 accessesView PDFCite
Research ArticleOpen accessIn the keywordsSenior Expertise and Peer Consensus: A Comparative Analysis of AI and Clinician Measurements in Multi-Curve Scoliosis AssessmentFrank Ibañez Elijorde, Joselito F. Villaruz, Ma Beth S. Concepcion, Mylo N. SoriasoGiven the scarcity in the literature, this study explored the use of AI for multi-curve scoliosis assessment. Its performance was analyzed through comparison against a group of clinicians composed of one senior and five non-senior orthopedic surgeons. The analysis focused on Cobb angle measurement and identification of vertebral endplates across three curve regions, namely Main Thoracic (MT), Proximal Thoracic (PT), … …Journal of Computer Science, Vol. 22, Issue 3 · 9 Mar 2026 · 1,390 accessesView PDFCite
Research ArticleOpen accessIn the keywordsExploring the Impact of Incorporating Fine-Grained Materials on the Resistance Characteristics of Cement-Reinforced ClaySayed Amirhossein Hosseini Chaleshtori, Mohammad Alibabaei ShahrakiThis study, conducted with meticulous attention to detail, examined the influence of fine-grained materials on the resistance components of clay, with and without cement reinforcement. Micro-silica, perlite, crystal barite, gypsum, silica and talc were added to investigate this matter and samples were created and modeled under standard laboratory conditions. The current study aimed to examine the effectiveness of organic granules … …American Journal of Engineering and Applied Sciences, Vol. 17, Issue 3 · 13 Aug 2024 · 5,579 accessesView PDFCite
Research ArticleOpen accessIn the keywordsTransverse Velocity, Transverse Boundary Shear Stress and Flow Deviation in Meandering Open ChannelsYoussef Ismail HafezThis study presents a novel approach for characterizing the mechanics of flow in mildly meandering open channels, specifically focusing on the development of a new vertical distribution equation for transverse velocity. Unlike existing equations in the literature that rely on complex logarithmic or integral forms or infinite series forms, which are impractical for hydraulic engineers, the proposed equation employs ordinary … …American Journal of Environmental Sciences, Vol. 20, Issue 1 · 25 Jul 2024 · 5,058 accessesView PDFCite
Research ArticleOpen accessIn the keywordsRadar Cross Section Modelling and Analysis of Static and Dynamic Targets using MATLABPunam Pande, Sreemathy R, Mousami TurukRadar Cross Section (RCS) is an important characteristic of the electromagnetic system for target detection. This study presents detailed modelling of Radar Cross Section (RCS) of static simple objects like sphere, cylinder, triangular plate, circular flat plate, truncated cone and complex objects using MATLAB Radar toolbox. The RCS modelling of simple objects is also done with MATLAB POFACET GUI 4.3 … …Journal of Aircraft and Spacecraft Technology, Vol. 6, Issue 1 · 21 Mar 2022 · 11,024 accessesView PDFCite
Research ArticleOpen accessIn the keywordsController Design for Steer-by-Wire SystemSalahaddin M. Sahboun, Abdulrahman A. A. EmhemedThis study would address the suitability, adaptability and the efficiency of the electronically - controlled Steer-by-Wire (SbW) technology. Future steering technology heading for a fault tolerant and fail-safe steering system with enviable recoverability; electronically - controlled SbW with a back-up would be the best option to meet these demands. With mechanical connections between the hand wheel and front axle gradually … …Journal of Mechatronics and Robotics, Vol. 6, Issue 1 · 24 Jan 2022 · 6,794 accessesView PDFCite