University of Technology-IraqEngineering and Technology Journal1681-6900361B20180101Text File Hiding Randomly Using Secret Sharing Scheme1617534010.30684/etj.36.1B.1ENYossra H.AliUniversity of Technology, Department of Computer Sciences Baghdad, IraqHussein J.MankhiUniversity of Technology, Department of Computer Sciences Baghdad, IraqJournal Article20160408Exchange of information through the channels of communication can be<br />unsafe. Communication media are not safe to send sensitive information so it is<br />necessary to provide the protection of information from disclosure to unauthorized<br />persons. This research presented the method to information security is done<br />through information hiding into the cover image using a least significant bit (LSB)<br />technique, where a text file is encrypted using a secret sharing scheme. Then,<br />generating positions to hiding information in a random manner of cover image,<br />which is difficult to predict hiding in the image-by-image analysis or statistical<br />analyzes. Where it provides two levels of information security through encryption<br />of a text file using the secret sharing and the generating random positions of hiding.<br />This method has been in hiding a text file and recovered without loss of<br />information, as well as not noticing any deformation of the image. Where it was<br />hiding a text file size of 20 KB in image cover (250x250) pixels, the result of MSE<br />is 0.696 and PSNR is 49.211.https://etj.uotechnology.edu.iq/article_175340_c0a78e73b1737d6949c5236c75cf42da.pdfUniversity of Technology-IraqEngineering and Technology Journal1681-6900361B20180101Re-Use of Glass Wool Fiber as New Composite Polyester System71117534110.30684/etj.36.1B.2ENRaghad U.AbassUniversity of Technology, Applied Science Department, Baghdad, Iraq.Journal Article20170408Four different ratios of composites were prepared by varying the<br />wool glass, at different additive weight percentages (0, 0.2, 0.4, 0.6 wt. %)<br />in order to study the effect of glass wool reinforcement on mechanical and<br />chemical properties of GW-reinforced polyester composites. The vacuum<br />bagging technique was adopted for the fabrication of hybrid composite<br />materials. Afterword many mechanical properties as hardness, impact<br />resistance, and compression resistance for these hybrid composites were<br />evaluated according ASTM Standards. The mechanical properties were<br />improved as the fibers reinforcement content increased in the matrix<br />material. The chemical properties were improved as increased the weight of<br />glass wool. The chemical and mechanical properties have been increased<br />for maximum value when glass wool fiber has reached 0.6% wt.https://etj.uotechnology.edu.iq/article_175341_486e4f9879a3e079fa4f70ed9a86d1f0.pdfUniversity of Technology-IraqEngineering and Technology Journal1681-6900361B20180101Preparation and Investigation of Flexural Strength and Impact Strength for Nano Hybrid Composite Materials of the Tri- Polymeric Blend used in Structural Applications122417534210.30684/etj.36.1B.3ENSihama I. SalihDepartment of Materials
Engineering, University of
Technology, Baghdad, Iraq.Wleed B.SalihDepartment of Physics, University of Anbar, Anbar, Iraq.Mustafa S.MohammedDepartment of Physics, University of Anbar, Anbar,
Iraq.Journal Article20170228Current work is aimed to preparation the nanocomposites laminates<br />of low density and good durability to use in structural applications. So, in this<br />paper, the preparation and compare of some mechanical properties of two<br />groups of tri-polymer blends composites consisting of ((93% unsaturated<br />polyester resin (UP)+(5%PMMA) (Poly methyl methacrylate)+2%NR<br />(Natural Rubber)) as the matrix materials. Added the reinforce materials<br />(silica (SiO2) and zirconia (ZrO2) nanoparticles) individually, with different<br />volume fraction of (0, 0.5, 1, 1.5%) to the ternary polymer blends according<br />to the following formula:- [((100-X) (93%UP)+2%NR+5%PMMA): (X%SiO2<br />or X% ZrO2)] The first group is composed of matrix material reinforced with<br />zirconia (ZrO2) nanoparticles with average diameter of nanoparticles<br />(56.88nm) and the second group is composed of matrix material reinforced<br />with silica (SiO2) nanoparticles with average diameter of nanoparticles<br />(24.59nm). Then used as a matrix material for the preparation of hybrid<br />laminar composites materials, reinforcement with one and two layers of<br />woven carbon fibers The research included the study of the influence of<br />volume fraction of nanoparticles on some of mechanical and physical<br />properties like flexural strength, flexural modulus impact strength, and impact<br />fracture toughness, in addition to test infrared spectroscopy (FTIR) and all of<br />these tests were carried out at laboratory temperature. Search results have<br />shown that the values of (flexural modulus and impact strength and fracture<br />toughness) increases with the increase of the nanoparticles ratios in polymer<br />blend nano composite of prepared samples. While flexural strength value<br />decreases with the increase in the volume fraction of nanoparticles in polymer<br />blend nano composite. The fracture energy of the of hybrid laminar<br />composites is higher than those containing only the nanoparticles powders.<br />Morphology test by scanning electron microscope indicates that a good<br />adhesion or interfacial interactions between the Nano powders particles,<br />carbon fibers and components of ternary polymer blend. Which results in<br />higher the carbon fibers efficiency factor, and hence higher mechanical<br />strength. So, the hybrid laminar nano composites, which appear high flexural<br />modulus and impact strength and fracture toughness, can be foreseen to<br />provide valuable contribution to high performance structural applications.https://etj.uotechnology.edu.iq/article_175342_03c2d64be514cde612a2af5fce85dd7f.pdfUniversity of Technology-IraqEngineering and Technology Journal1681-6900361B20180101Proposed Video Watermarking Algorithm based on Edge or Corner Regions253217534310.30684/etj.36.1B.4ENNidaa F.HassanComputer Science, Department, University of Technology, Baghdad, Iraq.Rusul N.AbbasComputer Science Department, University of Technology, Baghdad, IraqJournal Article20151208In this research, a watermark algorithm is proposed to embed a secret<br />message in a digital video. The proposed algorithm exploits edges and corners<br />regions in images, to be hosts for hiding secret bits. Embedding in these regions<br />is consider optimal since these regions featuring with colors variation, so<br />embedding will not effect on uniform distribution of colors, and on transparency<br />requirement. The process of embedding and extracting watermarked massage is<br />implemented by decomposition digital video to several images (frames), then<br />selecting the edges and corners regions to be host locations, Least Significant<br />Bit (LSB) techniques are used to embed watermarked message in images of<br />digital video. Investigations results proved that number of hidden bits in corner<br />region is small in comparison with edges regions, but it is harder to detect. Text<br />message before embedded in video frames is encrypted by Advanced Encryption<br />Algorithm (AES) to increase security and robustness of watermarking process.https://etj.uotechnology.edu.iq/article_175343_a1ffb03573c04116d826ae5975cb9c6f.pdfUniversity of Technology-IraqEngineering and Technology Journal1681-6900361B20180101Effects of Electrode Geometry on Energy Transfer Characteristics of Electrolytic Cells Used for Production of Metallic Nanostructures333617534410.30684/etj.36.1B.5ENNoor I.NajiApplied Sciences Department, University of Technology, Baghdad,
IRAQ.Journal Article20160703In this work, the effects of geometries of stainless steel electrodes used in<br />electrolytic analysis cells were studied. These cells are used for preparation of<br />metallic nanostructures. These effects can be observed by studying energy transfer<br />characteristics of electrolytic cell as the electric field and current density are<br />determined by its electrode geometry. Four electrode geometries were used in this<br />work.https://etj.uotechnology.edu.iq/article_175344_650c10bb566992f7b7c3f9b5a9fa8091.pdfUniversity of Technology-IraqEngineering and Technology Journal1681-6900361B20180101Theoretical Study of comparative between the speed of penetration and cutting using a laser beam374317534510.30684/etj.36.1B.6ENEkhlas J.MahmoodKufa University, College of Education for Girls Dept. of Physics, Najaf, Iraq.Journal Article20170219This research is devoted to study the effect of a laser beam<br />power TEA-CO2 , Nd- YAG laser, and thermal properties of the materials<br />when it is constant once and varying another once with the time on the<br />penetration and cutting speeds. It is concluded that the processes of<br />penetration and cutting by using laser Nd-YAG is the best comparative<br />with using of laser TEA-CO2, penetration speeds when (P = P0, C = C0,<br />and ρ = ρ0) by using laser Nd-YAG greater than penetration speeds by<br />using of laser TEA-CO2 by 15.5 approximately while penetration speeds<br />when (P = P(t), C = C0, and ρ = ρ0) by using laser Nd-YAG greater than<br />penetration speeds by using of laser TEA-CO2 by 8.519 approximately. In<br />addition, the temperature of the evaporation of material plays an<br />important role in the processes of penetration and cutting and whenever<br />temperature of the evaporation of material less the cutting and<br />penetration speeds are greater. (MATLAB 8) program was implemented<br />for all simulation processes are related.https://etj.uotechnology.edu.iq/article_175345_93f6b6688c574fff897e6b8739fb976c.pdfUniversity of Technology-IraqEngineering and Technology Journal1681-6900361B20180101C-Reactive Protein as a Marker in the Iraq Patients with Poisoning Thyroid Gland Disease444717534610.30684/etj.36.1B.7ENMaryam D.KamelBiotechnology, Applied Science
Department, University of
Technology, Baghdad, Iraq.Abbas A.MohammedBiotechnology, Applied Science
Department, University of
Technology, Baghdad, Iraq.Ali A.IbrahimCollege of Business Economics,
Al-Nahrain University,
Baghdad, IraqJournal Article20170713The present study aimed to investigate the possibility of using Creactive<br />protein (CRP) and the level of CRP in serum sample as a marker<br />for patients with poisoning thyroid gland disease. In addition, the<br />relationship between inflammation and poisoning thyroid gland. About 21<br />of serum samples were examined from patients with poisoning thyroid gland<br />(aged between 14 and 60 years old). Qualitative test was done to detect the<br />presence of CRP in the patient’s serum. The qualitative test showed that<br />21(100%) patients with poisoning thyroid gland give positive result to CRP.<br />The HPLC analysis done to determine the concentration of CRP in patient's<br />serum. The HPLC analysis showed that the level of concentration for CRP<br />in serum between (6.4-9.49mg/l). According to the results of the present,<br />the significant changes in the levels of CRP for the patients with thyroid<br />disorders observed in current study confirm that inflammation has an<br />important role on pathogenesis of thyroid dysfunctions regardless of their<br />thyroid dysfunction type. As well as the present study shown that, the CRP<br />is a useful marker for patients with poisoning thyroid gland.https://etj.uotechnology.edu.iq/article_175346_a1a32d8942ddda7b25afd4366c7946d3.pdfUniversity of Technology-IraqEngineering and Technology Journal1681-6900361B20180101Propose an Arabic CAPTCHA System based on Chaotic Maps485217534710.30684/etj.36.1B.8ENMariam T.SulaimanComputer Science Department
University of Technology,
Baghdad, IraqNidaa F.HassanComputer Science, Department, University of Technology, Baghdad, Iraq.Journal Article20170703CAPTCHA is the facility that prevents web bots from accessing<br />the web services by generating tests to check whether the user is human or<br />computer program. In this paper, a new pseudo-random bits generator based<br />on chaotic system is offered to generate Arabic letters and numbers for<br />CAPTCHA system. The proposed generator uses two Jacobian elliptic<br />Chebyshev rational maps that are combined in the algorithm to produce a<br />block of 32bits in each iteration. A specified number of bits are selected from<br />the resulted blocks to be converted to a set of Arabic letters and numbers.<br />National Institute of Standards and Technology (NIST) statistical test suite<br />are used to assess the generator randomness, all tests has been passed except<br />Longest Run of Ones in a Block Test, Binary Matrix Rank Test and Random<br />Excursions Test.https://etj.uotechnology.edu.iq/article_175347_9f68d7e7d9d03b1d9f993e12140eea6f.pdfUniversity of Technology-IraqEngineering and Technology Journal1681-6900361B20180101Optical and Structural Properties of (In2O3:ZnO:Au) Nanocomposite Thin Films Prepared by Spray Pyrolysis Method535817534810.30684/etj.36.1B.9ENAbdul Hadi K.JudranUniversity of Technology - IraqFarah T.M.NooriCollege of science, Physics
department, university of
Baghdad, Baghdad, Iraq.Nawres D.HamzaLaser and Optoelectronics Eng.
Department, University of
Technology, Baghdad, Iraq.Journal Article20170608Indium Oxide (In2O3) and Zinc Oxide (ZnO) nanoparticles were<br />mixed carefully with gold nanoparticles, which were synthesis, by turkevich<br />method. By using the method of spray pyrolysis different concentrations<br />(5:5:0 ml, 5:4:1 ml, 5:3:2 ml, 5:2:3 ml, 5:1:4 ml and 5:0:5 ml) from these<br />chemical compounds were used to preformed nanocomposite thin films of<br />thickness of (250-300) nm. The structural properties were studied for all<br />nanocomposite thin film samples with different concentrations. The existence<br />of Miller indices conforms to (211), (222), (400), (333), (440) and (622) major<br />lattice planes of the cubic spinel phase of In2O3 at 2θ =20.17, 33, 44.66, 50.95,<br />59.02, 72.48 and 73.12. While secondary lattice planes of (100) and (002) of<br />ZnO at 2θ = 31.5582 and 34.1617, also lattice planes of (111) and (200) of<br />Au were found at 2θ = 38.5799 and 45.6016. The work also extended to study<br />the optical properties, which included the transmission spectrum, absorption<br />spectrum, absorption coefficient, attenuation coefficient and estimation of<br />optical energy gap for all samples. The results of optical properties were<br />clearly demonstrated that the increasing of gold concentration is decreasing<br />the transmission, and decreasing the optical band gap from 3.10 to 3.05 eV,<br />but increasing the absorption coefficient and attenuation coefficient. Finally<br />The real and imaginary part of dielectric constant of (In2O3:ZnO:Au)<br />nanocomposite thin film with different concentrations decrease withhttps://etj.uotechnology.edu.iq/article_175348_3d6b755afb59b00c678b936acce04b84.pdfUniversity of Technology-IraqEngineering and Technology Journal1681-6900361B20180101Transesterification of Castor Oil by Using Methanol and Ethanol (50/50) Mixture596317534910.30684/etj.36.1B.10ENMuna M.KhudhairMinistry of Science and
Technology, Directorate of
Materials Research, Baghdad,
Iraq.Sajeda A.HusainMinistry of Science and
Technology, Directorate of
Materials Research, Baghdad,
Iraq.Zahraa M.JassimMinistry of Science and
Technology, Directorate of
Materials Research,
Baghdad, Iraq.Shefaa M.SalihMinistry of Science and
Technology, Directorate of
Materials Research,
Baghdad, Iraq.Journal Article20160920Biodiesel is gaining considerable attention as a renewable source<br />of energy, as an alternative to petroleum fuel and can be used in engine<br />without modification in this paper, the profile of preparation of fatty acid<br />methyl ethyl ester from castor oil via a base-catalyzed transesterification was<br />investigated.. The variables chosen for the study were reaction time, oil to<br />(methanol and ethanol) mixture ratio, and reaction temperature at constant<br />concentration of KOH(catalyst) .The effects of these variables on viscosity and<br />specific gravity were studied.https://etj.uotechnology.edu.iq/article_175349_d3dca827d2a74f067a383bd47b9d314b.pdfUniversity of Technology-IraqEngineering and Technology Journal1681-6900361B20180101Antioxidant activity of Linalool646717535010.30684/etj.36.1B.11ENMajid S. JabirUniversity of Technology-Applied science
University of technology
Baghdad, IraqDepartment of Applied Science, Baghdad-IRAQ.Ali A.TahaApplied science
University of technology
Baghdad, IraqUsama I.SahibApplied science
University of technology
Baghdad, IraqJournal Article20170521In recent years, Essential oils from their various aromatic plants had<br />been reported to be used in treating of many types of cancer due to their antitumor<br />activity. In addition, numerous studies had investigated the highest capability of<br />chemopreventive phytochemicals compound to act as anticancer drugs. In the<br />present research, the antioxidant activity of Linalool on free radicals compounds<br />was studied. The Antioxidant activity was performed using two methods, DPPH<br />and Hydrogen Peroxide (H2O2) Scavenging Capacity. The DPPH scavenging<br />activity demonstrated that Linalool had antioxidant activity comparing with<br />ascorbic acid. Linalool demonstrated moderate antioxidant activity with<br />50.57471% compared with ascorbic acid that showed 86%. Meanwhile, H2O2<br />scavenging capacity methods investigated that Linalool exhibited moderate<br />scavenging activity 56.36% comparing with ascorbic acid that showed 65%. The<br />results of this study investigated that the Linalool can be used as easily accessible<br />source of natural antioxidants. It can able to be used in the treating several types<br />of cancers as a result of antioxidant activity of it.https://etj.uotechnology.edu.iq/article_175350_e9ae81d90e75cd56824439e82e742636.pdfUniversity of Technology-IraqEngineering and Technology Journal1681-6900361B20180101Assessment of Some Heavy Metal Concentrations in Drilling Mud samples in Az Zubair Oil Field, Basra, Iraq687517535110.30684/etj.36.1B.12ENSahar A.AminEnvironmental Research Center, University of Technology, Baghdad, IraqAbdul Hamid M. J.Al- ObiadyEnvironmental Research Center
University of Technology,
Baghdad, IraqRana R.AlaniEnvironmental Research Center
University of Technology,
Baghdad, IraqAthmar A.Al-MashhadyEnvironmental Research Center
University of Technology,
Baghdad, IraqJournal Article20170508Analysis of eight heavy metal concentrations (Cd, Cr, Cu, Fe, Mn,<br />Ni, Pb and Zn) of 14 drilling mud samples collected from oil well at different<br />depths which is located in AZ Zubair oil field-Basra was done in this study .<br />The samples were measured using atomic absorption spectrophotometry.<br />Obtained results indicated that the heavy metal concentrations range from the<br />lowest value of 1.66mg/kg for Cd to the highest value of 1235.86mg/kg for<br />Fe. The abundance trend for the heavy metals concentration was in the<br />descending order of Fe, Mn, Ni, Cu, Cr, Zn, Pb, and Cd. Four parameters:<br />Enrichment Factor (EF), Contamination Factor (CF), Geo-accumulation<br />Index (Igeo) and Pollution Load Index (PLI) were assessed in order to<br />evaluate the degree of contamination.https://etj.uotechnology.edu.iq/article_175351_938d946a70296f5e718260861a9dc997.pdfUniversity of Technology-IraqEngineering and Technology Journal1681-6900361B20180101Analysis of Image Noise Reduction Using Neural Network768717535210.30684/etj.36.1B.13ENMohanad N.AbdulwahedMaterials Engineering
Department, University of
Technology, Baghdad, Iraq.Journal Article20170622Noise adding methods (impulse and Gaussian) are using in this<br />work, adding this type of noise employ to mensuration the image quality as<br />result, therefore transform of (RGB) colors to another type of color<br />impersonation that easy to deal with it, also sensitivity of human eyes to detect<br />the colors. Applying Noise reduction (mean method, mode method, median<br />method) ,By using a test image, we demonstrate that the filtering structure<br />yields an output image which is significantly better than those of median,<br />weighted median .The program of this work is written with Delphi Language,<br />which have some flexibility to deal with image that's not found in other<br />language. The great feature of this language and the ability to process the<br />image in memory (so the processing will be faster and easier), easy to access<br />the parameters through the subroutines (however the size of it), showing the<br />stored images that in memory to the displayer through one instruction.https://etj.uotechnology.edu.iq/article_175352_a552a148aba3967813a816d7f6f2980c.pdfUniversity of Technology-IraqEngineering and Technology Journal1681-6900361B20180101Generalized Dependent Elements of Generalized Reverse Derivation on Semiprime Rings889217535310.30684/etj.36.1B.14ENShaimaa YassMaster of Science in
Mathematics from University
of Baghdad, College of
Science, Baghdad, Iraq.Journal Article20160907Let R be an associative ring, and Š:RR be a map, if there exists<br />an element eR such that Š(u)e= [u,e]e, for every uR, in this case e is called<br />Generalized Dependent Element of Š, and Ğ-D(Š) denote the set of all<br />Generalized Dependent Elements of Š. In this paper the result proved, let R be<br />semiprime ring, and F : RR is a generalized reverse derivation, related with<br />derivation d, then eĞ-D(F), iff, eZ(R) and eF(u) =0 for every uR.https://etj.uotechnology.edu.iq/article_175353_ad925f84a3d90f0fc5a2ce5e1c21f7ec.pdfUniversity of Technology-IraqEngineering and Technology Journal1681-6900361B20180101Effect of Laser Pulses on Characterization of Zincoxide Thin Film Prepared by PLD939817535410.30684/etj.36.1B.15ENSuaad S.ShakerResearch Centre of
Nanotechnology and
Advanced Materials,
University of Technology,
Baghdad, IraqAsma H.MohammedDepartment of Physics, Al
Mustansyriah University,
Baghdad, Iraq.Majid S.KhalafDNA Research Center, Al
Nahrain University,
Baghdad, Iraq.Journal Article20160408In this work, ZnO thin films have been deposition using pulsed laser<br />deposition (PLD) method on glass and Si (111) substrates at different laser<br />pulsed. Some properties of ZnO thin films were studied, the results of XRD<br />explain Zinc oxidethin films with hexagonal wurtzite structure with thickness<br />about 155and 200 nm. FTIR spectrum shows the existence of Zn – O bond that<br />appear the texture of ZnOnanostructures. The root mean square of thin films<br />were explained with the range 8.31–15.2 nm with particle size about 41.6 -<br />45.41and was only slightly dependent on number of laser pulses. Zinc oxide thin<br />films showed transmittance of over 80% .The photovoltaic characteristics<br />indicated an increase the short circuit current-open circuit voltage with<br />illumination power as increased number of laser pulses resulted increasing of<br />film thickness.https://etj.uotechnology.edu.iq/article_175354_44396cc0dea18c34199661d490765ff8.pdf