The Design System for Educational Environment In The Theme of Digital Revolution
text
article
2010
eng
The appearance of digital media (Information and communication), in thetwentieth century and its development during the twenty first century has made noticeable achievements and has clearly inflected our way of life activities. The change from normal activities to digital activities, especially with increased use of the international information network (the internet) suggested a new logic and a different entity to a new community which we can call "Digital community". The digital revolution appeared in all fields of life and affected in a huge way many life activities in form of jumps or shocks in the civilized society. The importance of this research draws its material from the current and future digital revolution ineducational environment and attempts to forecast the future outcomes, so that education policy makers and designers of educational services hear in mind these changes during decisions taken for necessary strategies. The research is based on the analytical syllabus that builds the current and future outlook for educationalenvironment systems, and study's the reality, predictions for near future. The research is divided into five main parts; the first takes an abstract look into digital revolution and its effect in educational environment. The second; involves the analytical study in the methods and goals of the projects. The third; presents a study in two dimensions and they are, the digital education activities as a theme in the age of digital revolution, and the digital education environment in the new age of digital revolution. The fourth; involves discussions of the system of educational environment and its design dimensions. Conclusions and recommendations for future remedies are drawn from the syllabus and listed in the fifth and final part.
Engineering and Technology Journal
University of Technology-Iraq
1681-6900
28
v.
13
no.
2010
604
617
https://etj.uotechnology.edu.iq/article_27777_ebb50b2c5b6c64f0765ba1e9c9b54928.pdf
dx.doi.org/10.30684/etj.28.13.13
Preparation of ELISA Kit for detection of Brucella infection
text
article
2010
eng
Preparation of antigen from Br.melitensis strain Rev1 was done by usingultrasonication, Column chromatography used to analysis of protein component ofantigen; four peaks on chromatography were observed.Electrophoresis techniques used for characterization of antigen, different inmolecular weight (M.W) protein bands were showed in electrophoresis rangedbetween 478630-123060 Dalton.A group of guinea pigs was infected experimentally with virulent strain ofBrucella abortus & Brucella melitensis.Peak that obtained by chromatographywere used to indicate Brucella infection with the 2 virulent strains (Brucellaabortus & Brucella melitensis).The best result obtained by using peak two which have the protein concentration364.2 μg/ml a comparative study was done using a kit prepared by SynbioticsCompany and the result was positive in Brucella abortus infection and negative inBrucella melitensis infection.
Engineering and Technology Journal
University of Technology-Iraq
1681-6900
28
v.
13
no.
2010
618
626
https://etj.uotechnology.edu.iq/article_27778_f090225ededf5de7066b241fabff03d9.pdf
dx.doi.org/10.30684/etj.28.13.14
The Use of Multi Media Filter for removing pollutants from Nineveh Drugs Industry
text
article
2010
eng
Study depending on using of multi media filter consists of activated carbon,ceramic, sand in order to treatment wastewater of Nineveh Drugs Industry whichcontained of many amount of chemicals .Raw effluents passed through filters tofound the efficiency removal of pollutions .Many tests had done for more than 20samples such as ;pH, E.C, COD, T.S, S.S , T.H, Ca-H, PO4,NO3, pb, Cu, Zn , Cd,Ca, Mg .The highest and lowest value of organic load value of the waste havebeen chosen for treatment at rate 5 and 10 m/hr .Comparison carried out between(Activated carbon-sand) filter and(ceramic –sand) filter in order to finding themost effective of removal .The results showed that filter(activated carbon –sand) ismore effective than filter (ceramic-sand).Removal efficiency on to (activated carbon–sand) at lowest and highest organic load respectively reached to(92% and73%) for SS and (%58, % 40) for COD( 85% and 56%) for lead. Lead was themost effective removal from heavy metal. Multi media filter is gave most effectiveremoval efficiency at lowest and highest organic load respectively (95%, 92%) forS.S and (%73 %58 ) for COD and (87.5%, 73%) for lead.The effluent casting to river except cadmium was within limits . COD value waswithin limits of casting to river at low organic load and exceed limits at highorganic load. Current velocity at rate5 m/hr is most effective
Engineering and Technology Journal
University of Technology-Iraq
1681-6900
28
v.
13
no.
2010
627
641
https://etj.uotechnology.edu.iq/article_27779_eaee5ce43dc5cf0ec82bacf171d1f8c0.pdf
dx.doi.org/10.30684/etj.28.13.15
The Effect of the Cerium Addition on the (Corrosion Fraction Wear) Properties of (Aluminum – Iron) Base Alloy
text
article
2010
eng
The present study deals with the effect of addition cerium in the corrosion–fraction wear behavior of with added (0.25%) cerium element. The solution used;salt solution ( 3%Wt.NaCl ) by weight , acidic solution (3%Vol.HCl ) by volume ,weight loss method ; electrochemical method ( Tafel Extrapolation ) andmicroscopic examination are used for study corrosion behavior of alloy . The resultof weight loss method showed different continues weight loss while the (B) alloyshowed weight loss at the first stage of the test then showed weight gain. The resultof electrochemical method ( Tafel Extrapolation ) showed the corrosion potentialand corrosion current of ( A ) alloy in the salt solution was E Corr.=-641.3 mv;ICorr. = 34.42μA/Cm2 while the corrosion potential and corrosion current for (B)alloy was E Corr. = -681.6 mv ; I Corr.= 51.50 μA/Cm2. The result of weight lossmethod in acid solution showed convergence in the result at first hour of the testafter that (A) alloy showed signification superiority on the ( B ) alloy . The resultof electrochemical method ( Tafel Extrapolation ) showed the corrosion potentialand corrosion current of ( A ) alloy in the acidic solution was E Corr.= -324.7 mv ;I Corr.=19.13 μA/Cm2 while the corrosion potential and corrosion current for ( B )alloy was E Corr. = -697.9 mv ; I Corr.=507.35 μA/Cm2. The result of fractionwear test showed significant superiority of alloy ( A ) on the alloy ( B )
Engineering and Technology Journal
University of Technology-Iraq
1681-6900
28
v.
13
no.
2010
642
657
https://etj.uotechnology.edu.iq/article_27780_d58ef069356b5c0802308d7700cb5bc0.pdf
dx.doi.org/10.30684/etj.28.13.16
Effect of Using Bumps on Wings Aerodynamic Characteristics at Low Reynolds Numbers
text
article
2010
eng
The effect of using bumps on the aerodynamic characteristics of airfoil at low Reynolds numbers is presented in this research. A theoretical study was done on the (NACA 4418) airfoil consist of bumps that have radius (2% c) on the upperand lower surfaces at (Re=25×103). Experimental study was also done on thecontrol of flow around (NACA 0015) airfoil of backward facing step with andwithout bumps inside the step at (Re=4.4×105). Theoretically the (Fluent 6.3)package was utilized for simulating the flow around the airfoils. Experiments weredone in a low-speed wind tunnel in order to obtain the pressure distribution on theairfoil surface and lift and pressure drag coefficients. The airfoils used in theexperimental study were the basic airfoil, airfoil of backward facing step on thelower surface with and without bumps, and airfoil of backward facing step on theupper surface with and without bumps. The theoretical results illustrate the benefitof using bumps on the lower and upper surfaces of the (NACA4418) airfoil. Thelaminar separation bubble was delayed. Also the theoretical and experimentalresults show the benefit of using bumps inside the steps on the lower or uppersurfaces of the airfoil. The (Clmax) was increase by (25.04%) with respect to thebasic (NACA 0015) airfoil and by (7.14%) with respect to the airfoil with smoothstep on the lower surface. When using step and bumps on the upper surface the(Clmax) was increase by (16.85%) with respect to the basic (NACA 0015) airfoiland (5.86%) with respect to the airfoil with smooth step on the upper surface.
Engineering and Technology Journal
University of Technology-Iraq
1681-6900
28
v.
13
no.
2010
658
677
https://etj.uotechnology.edu.iq/article_27781_14e7defafe902a0a47067518523c5583.pdf
dx.doi.org/10.30684/etj.28.13.17
Insulating Light Weight Aggregate Concrete
text
article
2010
eng
The weather in Iraq is hot in summer and cold in winter. Therefore , thethermal insulation is of the main problems facing the engineers working inbuilding and housing sectorThe paper presents an experimental investigation, It includes preparation ofseveral concrete mixes using lightweight aggregate (siporex and porcelinite &suwdast ) to obtain light weight concrete of two densities ranging from (350-880kg/m3), which provides a good thermal insulation. Based on the analysis ofexperimental results several graphs and Tables have been prepared and presentedwhich can be used in the mix design of similar siporex concrete of densities from(350-880 kg/m3) . The physical properties of siporex concrete , have been foundwhich included density (765-822kg/m3) , compressive strength (1.51-2.2 N/mm2)& (2.8-3.7 N/mm2) ,thermal conductivity ( 0.19-0.39 W/M.K) for the two groupsrespectively.
Engineering and Technology Journal
University of Technology-Iraq
1681-6900
28
v.
13
no.
2010
678
691
https://etj.uotechnology.edu.iq/article_27782_a5074a13faa7becdfecb91ee54761e84.pdf
dx.doi.org/10.30684/etj.28.13.18
The Effect Of Temperatures and Chemical Solutions on The Elasticity Modulus Of Hybrid Composite Materials
text
article
2010
eng
In this one of the work a hybrid composites materials were prepared whichconsist polymer blend – Phenol formaldehyde – Novolac type and epoxy resinsreinforced by silica, alumina powder and asbestos fibers with two volumefractions (30%, 40%), six hybrids prepared. Bending test was done in order todetermine the Young's modulus in different temperatures and different chemicalsolutions. the result show that Young's modulus decreases with increasingtemperatures and with increasing the immersion times in different chemicalsolutions , and the result show that the samples H6 (Volume fraction 40%) giveshigh values of young modulus while the samples H1 (Volume fraction 30%) giveslow values of young modulus
Engineering and Technology Journal
University of Technology-Iraq
1681-6900
28
v.
13
no.
2010
692
706
https://etj.uotechnology.edu.iq/article_27783_92f357837f32be2ffd379e0e8d17b46b.pdf
dx.doi.org/10.30684/etj.28.13.19
Effect of Gating System Design on Microstructure &Grain Size for Al-Mg Alloys
text
article
2010
eng
The objective of this paper is to study gating system design effect onAl-5%Mgalloy Microstructure Measurement (By Jeffrece's Method) and freezing range,two sand mould were made with different gating systems Practicality (in Runnerlength & Runner depth) to study the effect on freezing ratio & Microstructure, aVBA Program was bulid because Most of result are stored in Microsoft Excel2007Spread Sheet in which Calculation of Grain size were performed for manyspecimens ,Results shown that the gating system with runner length 2.5 cm andtaper sprue gave better results than gating system with a 4cm runner's length andcylindrical sprue .
Engineering and Technology Journal
University of Technology-Iraq
1681-6900
28
v.
13
no.
2010
707
722
https://etj.uotechnology.edu.iq/article_27784_40a5b252a9cf19dbeeb519f6551b5793.pdf
dx.doi.org/10.30684/etj.28.13.20
Preparation and Characterization of Polymer- Ceramic Composite Bio-material
Rabab
Asim Abdul-Aziz
author
Waleed
Asim Hanna
author
Kahtan
Khalaf Al-khazraji
author
text
article
2010
eng
This work focuses on studying the addition effect of the prepared HA powder asa filler material before and after the calcination process with different volumefractions (2.5, 5, 7.5, 10, 12.5, 15) vol% to the unsaturated polyester resin matrix.Many mechanical and physical tests were used to determine the properties of theprepared composite material which involved tensile strength, the modulus ofelasticity, the elongation percentage at break, compression strength, compressionmodulus, bending strength, impact strength, fracture toughness, hardness and waterabsorption percentage. For the prepared HA powder, the Ca/P ratio was increasedafter the calcination process from 2.45 to 2.51. X- ray diffraction patterns for theprepared HA powder before and after the calcination process revealed an increasein the HA peak intensity after the calcination process. Secondary phases alsoappeared after the calcination process like (α- Ca3(PO4)2 ) and (β- Ca2P2O7). For theprepared composite material with both groups of HA filler particles, the results hadshown that the mechanical properties which included: tensile strength, modulus ofelasticity, compression strength, compression modulus, bending strength, fracturetoughness and hardness have been increased with increasing volume fraction ofHA filler particles and reached their maximum value at (7.5 vol%). Furthermore,the increasing in volume fraction revealed a decreasing in the evaluated properties.Both the elongation percentage at the break point and the impact strengthdecreased with increasing volume fraction of HA filler particles. The waterabsorption percentage as a physical property for the prepared composite materialshowed an increase with increasing volume fraction of HA filler particles. Theimprovement of unsaturated polyester resin with calcined HA filler particles hadshown greater values for the fore-mentioned properties than the improvement ofunsaturated polyester resin with uncalcined HA filler particles.
Engineering and Technology Journal
University of Technology-Iraq
1681-6900
28
v.
13
no.
2010
2497
2515
https://etj.uotechnology.edu.iq/article_27726_f3ab674c652f2bf70cd4f345042918cb.pdf
dx.doi.org/10.30684/etj.28.13.1
Multivariate Multisite Model MV.MS. Reg for water Demand Forecasting
Rafa
H.Shaker.Al-suhaili
author
Muhannad,
J.Al-Kazwini
Building and Constriction Engineering Department, University of Technology/Baghdad
author
Cheleng
A.Arselan
Engineering College, University of Kirkuk/ Kirkuk
author
text
article
2010
eng
A new multivariate multi site MV.MS.Reg model is developed in thisresearch depended on regression analysis mixed with Auto regressive multisiteMatalas model (AMMM)and used for water demand forecasting .This developedmodel was applied to Kerkuk city as a case study for long term forecasting ofwater demand for different types such as domestic demand,industrial,commercialand public demand.This was done by dividing the city into four sites anddividing the total water demand in each site into three types ofdemand(domestic,industrial with commercial and public demand) .Each type ofwater demand in each site was analyzed by multivariate regression base then thecross correlation between this type of demand for the four sites were included inthe model using multi site Matalas model.Many explanatory variables wereconcluded to be most effective factors affecting different types of demands suchas monthly temperature,monthly evaporation ,number of residential units,number of industrial and commercial units and number of public units whichwere forecasted successfully using Stochastic weather generation (SWG)method.
Engineering and Technology Journal
University of Technology-Iraq
1681-6900
28
v.
13
no.
2010
2516
2529
https://etj.uotechnology.edu.iq/article_27728_e6b94ee05bca4ad1f8f26b892c9215ce.pdf
dx.doi.org/10.30684/etj.28.13.2
Image Denoising Using Framelet Transform
Ali
K. Nahar
author
Hadeel
N. Abduallah
author
text
article
2010
eng
In many of the digital image processing applications, observed image ismodeled to be corrupted by different types of noise that result in a noisy version.Hence image denoising is an important problem that aims to find an estimateversion from noisy image that is as close to the original image as possible. In thispaper, introduces firstly was applied method of computing one and twodimensionalframelet transform .The applying method reduces heavily processingtime for decomposition of image keeping or overcoming the quality ofreconstructed images. In addition, it cuts heavily the memory demands .Also, theinverse procedures of all the above transform for multi- dimensional casesverified. Secondly, many techniques are proposed for denoising of gray scale andcolor image. A new threshold method is proposed and compared with the otherthresholding methods. For hard thresholding, PSNR gives (13.548) value whilethe PSNR was increased in the proposed soft thresholding, it gives (14.1734)PSNR value when the noise variance is (20). Some of the above denoisingschemes are tested on Peppers image to find its effect on denoising application.The noisy version with SNR is equal to (11.9373 dB), the denoising image usingWT with SNR is equal to (17.4661 dB), the denoising image using SWT withSNR is equal to (18.1459 dB), the denoising image using WPT with SNR is equalto (19.3640 dB), the denoising image using FT with SNR is equal to (21.9138dB). Finally the denoising image for color image using FT with SNR is equal to(27.3443 dB).
Engineering and Technology Journal
University of Technology-Iraq
1681-6900
28
v.
13
no.
2010
2530
2550
https://etj.uotechnology.edu.iq/article_27729_dd6d6b0036b3a0efe4868f2b4ca0d29a.pdf
dx.doi.org/10.30684/etj.28.13.3
An Efficient Technique for Information Recovery of Erroneous Medical Image Blocks Transmitting Over Error Prone Networks
Ekhlas
H. Karam
author
Media
Abdul Razak Ali
author
Fatimah
S. Abdulsattar
author
Khamis
A. Zidan
author
text
article
2010
eng
Imperfect transmission of block-coded images often causes lost blocks.These blocks may contain very important information of image. In thispaper, an efficient method of error concealment scheme is proposed forrestoring lost blocks and lines in medical images that are transmitted overerror prone network such as the internet and wireless networks. It adoptedthe idea of data hiding that can be implemented in the DCT domain. Thealgorithm determines the most important information in each block oforiginal image and rotated one by 900 clockwise and embeds this informationinto another block that is not adjacent to it, since adjacent blocks have highprobability to be lost at the same time. Simulation results show that thevisual quality and the PSNR evaluation of a reconstructed image aresignificantly improved using the proposed scheme with respect to othertechniques.
Engineering and Technology Journal
University of Technology-Iraq
1681-6900
28
v.
13
no.
2010
2551
2559
https://etj.uotechnology.edu.iq/article_27730_cc3c9ca7977016d6d53f62cf0b5e8d48.pdf
dx.doi.org/10.30684/etj.28.13.4
Hyperelastic Constitutive Modeling of Rubber and Rubber- Like Materials under Finite Strain
Hassan
M. Alwan
author
Muhsin
N. Hamza
author
text
article
2010
eng
This paper is concerned with determining material parameters forincompressible isotropic hyperelastic strain–energy functions. A systematicprocedure analysis is implemented based on the use of least squares optimizationmethod for fitting incompressible isotropic hyperelastic constitutive laws toexperimental data from the classical experiments of Treloar [3] on natural rubber.Two phenomenological constitutive models are used to fit the experimental dataof natural rubber, these are Mooney-Rivlin and Ogden models. The materialparameters using Mooney-Rivlin are obtained using the linear least squaresmethod, while for Ogden model the material coefficients are nonlinear,consequently the nonlinear least squares approach has been used. In this work thenonlinear least squares method with trusted region TD have been used usingMATLAB Ver. 7 to find these coefficients. The comparison shows that the presentmathematical formulations are correct and valid for modeling rubbery materials.Also it was found that Mooney-Rivlin model is suitable when the deformation isnot to exceed 100%, while Ogden model is more appropriate when deformationexceed 100%. In addition, as the degree of non-linearity in material behaviourincreases more material coefficients are required.
Engineering and Technology Journal
University of Technology-Iraq
1681-6900
28
v.
13
no.
2010
2560
2575
https://etj.uotechnology.edu.iq/article_27732_72a046cbd0fb7577c801ef33d82f4a8e.pdf
dx.doi.org/10.30684/etj.28.13.5
Using Genetic Algorithm in Image Clustering
Muna
Y. Saghir
author
Saad
K. Majeedd
author
text
article
2010
eng
The aim of this work is to optimize gray scale image clustering using twotraditional methods, these are thresholding technique and genetic algorithm (GA).The clustering optimization is achieved by applying three features (gray value,distance, gray connection) based thresholding technique and genetic algorithm. Inthis work clustering optimization includes segmenting the image to find regionsthat represent objects or meaningful parts of objects depending on the abovementioned three features which base on gray value of image and two standardmathematical theories these are chessboard distance and breshenham's algorithm.There are many recent researches in this subject some of them depending on grayvalue feature to clustering images, but in this research depended on three featureswhich is making the clustering operation more accuracy.
Engineering and Technology Journal
University of Technology-Iraq
1681-6900
28
v.
13
no.
2010
2576
2591
https://etj.uotechnology.edu.iq/article_27770_264b8fcfccf2f1d39ffc63829606988f.pdf
dx.doi.org/10.30684/etj.28.13.6
A New Algorithm for Less Distortion and High Capacity Steganography Model Using Blocks-Based Method
Wathiq
L. Abd Ali
author
Salah
Mahdi Saleh
author
text
article
2010
eng
Most steganography methods suffer from many problems that effect ontheir efficiency and performance. Some of these are the capacity of cover media,the distortion of cover media, and etc. In this paper we are proposed a new methodto hide audio file (WAV format) in image (BMP format) that overcomes most ofthese problems. Also the proposed method aims to meet most the requirements ofany steganography system (like capacity, security and undetectability). It dependson finding the similarity between the embedded data blocks and others in thecover-image. It can be used as a powerful tool to get a high capacity dataembedding and a less distortion stego-image, where the PSNR for the stego-imageis large.
Engineering and Technology Journal
University of Technology-Iraq
1681-6900
28
v.
13
no.
2010
2592
2607
https://etj.uotechnology.edu.iq/article_27771_dbbc3e8272b37b2dc5e9548e0754ab7d.pdf
dx.doi.org/10.30684/etj.28.13.7
Effect of Hold Time Periods at High Temperature on Fatigue Life In Aluminum Alloy 2024 T4
Mahir
H. Majeed
author
Dhafir
S. Al-Fattal
author
Husain
J. Al-alkawi
author
text
article
2010
eng
In some applications, the aluminum alloy 2024 T4 may be subjected to aninteraction of fatigue and creep effects at high temperature. This paper investigatesthe effect of this interaction by studying the effect of constant amplitude fatigue(CAF) and creep separately, and then fatigue-creep interaction is introduced bytesting the alloy under constant amplitude with some holding time periods throughthe test at high temperature (150 oC). The results showed that the life time of thealloy decreases due to fatigue-creep interaction as compared to creep alone inabout 77%, and in about 80% as compared with fatigue alone. This is a result ofaccumulated fatigue damage superimposed on creep damage. Creep allows morefree spaces for fatigue cracks paths that accelerate failure. A theoretical model tocalculate the time to failure due to fatigue-creep interaction has been proposed.This theoretical interaction model predicts very close time to failure values to theexperimental results.
Engineering and Technology Journal
University of Technology-Iraq
1681-6900
28
v.
13
no.
2010
2608
2621
https://etj.uotechnology.edu.iq/article_27772_aa64ab956f9616fef81fe19b0e1fa2f1.pdf
dx.doi.org/10.30684/etj.28.13.8
Simulation of Aircraft Control Using Bond Graph Techniques and Matlab/Simulink Software
Usama
Staar Kazem
author
Assim
Hameed Yousif
author
text
article
2010
eng
to develop the nonlinear transformer that is required for particularimplementation of a complex aircraft control system. Aircraft longitudinal and lateralmotions are presented by studying and analyzing the aircraft dynamics. The equationsof motion are covered both forces and moments exerted on the aircraft using Newton'ssecond law with the assumption that at each equation the aircraft is regarded as a rigidbody. Six equations were classified, three equations for the longitudinal motion andthree equations for the lateral motion. The matrix for the differential equationsvectors for each force and moment were found with the aid of the computer aidedmodern bond graph program (CAMP-G) including symbolic manipulation.MATLAB/SIMULINK offered additional simulation capability.
Engineering and Technology Journal
University of Technology-Iraq
1681-6900
28
v.
13
no.
2010
2622
2637
https://etj.uotechnology.edu.iq/article_27773_83e9884cd4b3977569bfc6768ac7a3aa.pdf
dx.doi.org/10.30684/etj.28.13.9
Effect of Masonry Units Type and Concrete Grouting on Compressive Strength of Prisms
Ali
A. Jaber
author
text
article
2010
eng
Masonry is a well proven building material possessing excellent properties interms of appearance, durability and cost in comparison with alternatives.However, the quality of the masonry in a building depends on the materials used,and hence all masonry materials must conform to certain minimum standards. Thebasic components of masonry are block, brick and mortar, the latter being in itselfa composite of cement, lime and sand.Two types of masonry units (brick and concrete block) were used to construct theprism and some of them were grouted by concrete. The uniaxial compressivestrength test was done and stress-strain behavior has been obtained. Using linearregression analysis, a simple empirical equation has been proposed for obtainingthe compressive strength for masonry that can be used in the analysis and designprocedures.
Engineering and Technology Journal
University of Technology-Iraq
1681-6900
28
v.
13
no.
2010
2638
2653
https://etj.uotechnology.edu.iq/article_27774_91d288d404bfa67d06a1bebf42dc7152.pdf
dx.doi.org/10.30684/etj.28.13.10
Analytical Solution for Anthropomorphic Limbs Model, (IK of Human Arm)
M.
Z.Al-Faiz
Engineering College, University of Al- Nahrain/ Baghdad
author
Y.
I. Al-Mashhadany
author
text
article
2010
eng
This paper considers a proposed algorithm for computation of the inversekinematics(IK) model of the human arm. This algorithm introduces a new IK methodsuitable for reaching tasks performed by autonomous and interactive virtual humans.The basic problem is to pose the character in such a way that arm hand reaches thetarget ( position and orientation ) in space. The algorithm is composed of two phases.The first phase is the limitation of real task which concerning the human armmovement and the second phase presents the analytical solution for inverse kinematicsproblem (IKP) by trigonometric relations and algebraic solution according tolimitation of joints. This algorithm is simulated by using MATLAB Ver. R2008a, andsatisfied results are obtained, that explains the ability of the proposed algorithm tosolve the inverse kinematics problem for real human arm.
Engineering and Technology Journal
University of Technology-Iraq
1681-6900
28
v.
13
no.
2010
2654
2665
https://etj.uotechnology.edu.iq/article_27775_b6ab29cc98d9332e8afdd28e2872e31a.pdf
dx.doi.org/10.30684/etj.28.13.11
Optical Flow Estimation Based on Curvelet Transform and Spatio-temporal Derivatives
Atheer
A. Sabri
author
text
article
2010
eng
AbstractOptical flow estimation is still one of the key problems in computer vision.When estimating the displacement field between two images, it is applied as soonas correspondences between pixels are needed. The choice of the transform is animportant tool in optical flow estimation. So in this paper curvelet transform isproposed to estimate the optical flow. it is found that the proposed algorithm ismuch better than most recently previous work based on multiwavelet. This isbecause curvelet transform can be efficient in finding estimates along curves.
Engineering and Technology Journal
University of Technology-Iraq
1681-6900
28
v.
13
no.
2010
2666
2276
https://etj.uotechnology.edu.iq/article_27776_be4556315f4db5d6bbbc5c5056d54e37.pdf
dx.doi.org/10.30684/etj.28.13.12