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Search Results: 1 - 10 of 2296 matches for " Amin Alqudah "
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Survey of Surface Reconstruction Algorithms  [PDF]
Amin Alqudah
Journal of Signal and Information Processing (JSIP) , 2014, DOI: 10.4236/jsip.2014.53009
Abstract:

Surface reconstruction is a problem in the field of computational geometry that is concerned with recreating a surface from scattered data points sampled from an unknown surface. To date, the primary application of surface reconstruction algorithms has been in computer graphics, where physical models are digitized in three dimensions with laser range scanners or mechanical digitizing probes (Bernardini et al., 1999 [1]). Surface reconstruction algorithms are used to convert the set of digitized points into a wire frame mesh model, which can be colored, textured, shaded, and placed into a 3D scene (in a movie or television commercial, for example). In this paper, we discuss some computational geometry preliminaries, and then move on to a summary of some different techniques used to address the surface reconstruction problem. The coming sections describe two algorithms: that of Hoppe, et al. (1992 [2]) and Amenta, et al. (1998 [3]

Adaptive Control of DC-DC Converter Using Simulated Annealing Optimization Method  [PDF]
Amin Alqudah, Ahmad Malkawi, Abdullah Alwadie
Journal of Signal and Information Processing (JSIP) , 2014, DOI: 10.4236/jsip.2014.54021
Abstract: The purpose of this paper is to present a new adaptive control method used to adjust the output voltage and current of DC-DC (DC: Direct Current) power converter under different sudden changes in load. The controller is a PID controller (Proportional, Integrator, and Differentiator). The gains of the PID controller (KP, KI and KD) tuned using Simulated Annealing (SA) algorithm which is part of Generic Probabilistic Metaheuristic family. The new control system is expected to have a fast transient response feature, with less undershoot of the output voltage and less overshoot of the reactor current. Pulse Width Modulation (PWM) will be utilized to switch the power electronic devices.
Erratum to “Adaptive Control of DC-DC Converter Using Simulated Annealing Optimization Method” [Journal of Signal and Information Processing, (2014), 5, 198-207]  [PDF]
Amin Alqudah, Ahmad Malkawi, Abdullah Alwadie
Journal of Signal and Information Processing (JSIP) , 2015, DOI: 10.4236/jsip.2015.62013
Abstract: The purpose of this paper is to present a new adaptive control method used to adjust the output voltage and current of a DC-DC (DC: Direct Current) power converter under different sudden changes in load. The controller used is a PID controller (Proportional, Integrator, and Differentiator). The gains of the PID controller (KP, KI and KD) tuned using Simulated Annealing (SA) algorithm which is part of Generic Probabilistic Metaheuristic family. The new control system is expected to have a fast transient response feature, with less undershoot of the output voltage and less overshoot of the reactor current. Pulse Width Modulation (PWM) will be utilized to switch the power electronic devices.
Hands-On Open Access Broadband Wireless Technology Lab Mapping Course Outcomes to Lab Experiments
Yazan Alqudah
International Journal of Interactive Mobile Technologies (iJIM) , 2012, DOI: 10.3991/ijim.v6i4.2161
Abstract: The unprecedented growth in wireless communication is offering opportunities and challenges for educators. Thanks to technology advances and job opportunities, more and more students are interested in wireless communications courses. However, bridging the gap between classroom and real-world experience remains a challenge. Advanced undergraduate communications courses typically focus more on theory. Some courses are given online, and lack hands-on experiments. Driven by feedback from industry and students, we propose practical laboratory experiments that attempt to bridge the gap between classroom and real world. The laboratory exercises take advantage of the infrastructure of deployed wireless networks and allow students to measure, and analyze data, as well as to interact. The proposed labs can be used even in online courses. This paper describes the experiments proposed, the procedures and typical results. The experiments are tied to course objective.
Historical Phases of the Science of Hadith and its Most famous Categories
Ali Alqudah
Historical Kan Periodical , 2009,
Abstract: . . .
Whole Exome Sequencing: Novel Genetic Polymorphisms in Saudi Arabian Attention Deficit Hyperactivity Disorder (ADHD) Children  [PDF]
Neda Mostafa Bogari, Amr Ahmed Amin, Ashwag Aljohani, Ghida Dairi, Mahmoud Zaki El-Readi, Anas Dannoun, Udaya Raja, Mohammad Adil, Nermeen Qutub, Suhair Alhelfawi, Amal Alobaidi, Derar Alqudah, Hussain Banni, Safaa Yehia Eid, Huda Balto, Faisal Al-Allaf, Mohiuddin Taher, Hiba Saed Al-Amoodi, Ahmed Fawzy
Natural Science (NS) , 2019, DOI: 10.4236/ns.2019.112007
Abstract: Background: Attention-deficit hyperactivity disorder (ADHD) is a widespread and debilitating disorder with relatively high prevalence in Saudi Arabia. Neuropsychological and radiological investigations have revealed that there are some differences in the components of the brain regions in children with and without ADHD. In this study we have performed whole exome sequencing (WES) in four non-familial cases of ADHD from Makkah Region to identify the genetic polymorphisms associated with the disease in our Saudi population. Methods: Exome sequencing was carried out using Ion Proton with AmpliSeq Exome library methods, and the data were analysed by Ion Reporter 5.6 software. Results: A total of 33 variants were identified from 222 genes selected from the GWAS catalogue for ADHD associated genes. However, the SNPs we identified in these genes were not reported to be associated with ADHD in previous studies. We have identified 2 novel missense variants; one in c.3451G > T; p. (Ala1151Ser) in ITGA1 gene and another is c.988G > A; p. (Ala330Thr) in SPATA13 genes. The variants rs928661, rs11150370 and rs386792899 were the only three variants that appeared on all the 4 patients studied. Six missense variants, rs16841277, rs2228209, rs2230283, rs3741883, rs1716 and rs2272606, were found in 3 different patients, respectively. However, the three documented variants are rs13166360 with bipolar disorder, rs920829 with neuropathic pain, and rs6558702 with schizophrenia. Conclusion: We have identified 2 novel variants in ADHD children. SIFT score of all variants indicates that these substitutions have damaging effects on the protein function. Further screening studies are recommended for confirmation.
Jacobi-weighted orthogonal polynomials on triangular domains
A. Rababah,M. Alqudah
Journal of Applied Mathematics , 2005, DOI: 10.1155/jam.2005.205
Abstract: We construct Jacobi-weighted orthogonal polynomials 𝒫n,r(α,β,γ)(u,v,w),α,β,γ>−1,α
Bivariate Chebyshev-I Weighted Orthogonal Polynomials on Simplicial Domains
Mohammad A. AlQudah
Mathematics , 2015,
Abstract: We construct a simple closed-form representation of degree-ordered system of bivariate Chebyshev-I orthogonal polynomials $\mathscr{T}_{n,r}(u,v,w)$ on simplicial domains. We show that these polynomials $\mathscr{T}_{n,r}(u,v,w),$ $r=0,1,\dots,n;$ $n\geq 0$ form an orthogonal system with respect to the Chebyshev-I weight function.
Characterization of the generalized Chebyshev-type polynomials of first kind
Mohammad A. AlQudah
Mathematics , 2015, DOI: 10.14419/ijamr.v4i4.4788
Abstract: Orthogonal polynomials have very useful properties in the solution of mathematical problems, so recent years have seen a great deal in the field of approximation theory using orthogonal polynomials. In this paper, we characterize the generalized Chebyshev-type polynomials of the first kind $\mathscr{T}_{n}^{(M,N)}(x),$ then we provide a closed form of the constructed polynomials in term of the Bernstein polynomials $B_{k}^{n}(x).$ We conclude the paper with some results on the integration of the weighted generalized Chebyshev-type with the Bernstein polynomials.
Generalized Chebyshev I-Bernstein bases transformation
Mohammad A. AlQudah
Mathematics , 2015,
Abstract: We provide a closed form for the matrix transformation of the generalized Chebyshev of the first kind (Chebyshev-I) polynomial basis into Bernstein polynomial basis, and the matrix transformation of Bernstein polynomial basis into generalized Chebyshev-I polynomial basis. Also, we provide an explicit closed from of The generalized Chebyshev-I polynomials of degree $r\leq n$ in terms of the Bernstein basis of fixed degree $n.$
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