Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 5281 - 5310 of 5154618

Full-Text Articles in Entire DC Network

Design A Gray Water Treatment System For A Virtual Building Working By Solar Energy, Kheria Essa, Hashim Mahdi, Mohammed Mohammed Aug 2026

Design A Gray Water Treatment System For A Virtual Building Working By Solar Energy, Kheria Essa, Hashim Mahdi, Mohammed Mohammed

Engineering and Technology Journal

This work has showed that gray water can be used in irrigation with great success. It includes the explanation of how water recycling will save water for irrigation and agriculture use, reduce the costs of constructing purification plants, and add natural filters to the environment. It also aspires to invite companies to reduce the proportion of phosphate and other harmful substances in the composition of soap. In addition, it is possible to reduce the amount of suspended solids in a gray water by installing filters on the washing machines themselves, so that the volume of problems in the plankton is …

Go to article

Preparation, Characterization And Utilization Of Polyacrylamid-Kaolin Composite In The Removal Of Nickel Ions From Water, Mahmood Barbooti, Raghad Hilal, Balkees Al-Dabbagh Aug 2026

Preparation, Characterization And Utilization Of Polyacrylamid-Kaolin Composite In The Removal Of Nickel Ions From Water, Mahmood Barbooti, Raghad Hilal, Balkees Al-Dabbagh

Engineering and Technology Journal

A composite material of polymeric matrix Polyacrylamid (PAM) that is reinforced by a certified clay mineral of the Iraqi kaolinite at several weight ratios (10, 20, 30, 40 and 50%) was prepared by mixing the polymer water solution with the clay followed by hand molding method. Some of the mechanical properties of the prepared composite such as tensile strength, impact and hardness Shore A were studied to improve the mechanical capability to be as a sorbent for the removal of heavy metals from water.The results showed an improvement in the mechanical properties as the kaolin content was increased. The powdered …

Go to article

Analytical Characterization And Antimicrobial Activity Of Bismuth Nanoparticles Synthesized Using Laser Ablation Technique, Abdul Hadi Judran Aug 2026

Analytical Characterization And Antimicrobial Activity Of Bismuth Nanoparticles Synthesized Using Laser Ablation Technique, Abdul Hadi Judran

Engineering and Technology Journal

Bismuth nanoparticles were synthesized using laser ablation technique by focusing solid bismuth target in distilled deionized water by 1064 nm and 532 nm laser radiations generated by Q-switched pulsed Nd:YAG laser, respectively. Synthesized nanoparticles were characterized using UV–Vis spectrophotometer, X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), and Atomic Force Microscopy (AFM). The XRD pattern of the synthesized sample was indexed as. UV–Vis spectrophotometer indicated that the peak of absorption spectra of bismuth nanoparticles located in UV-region (230 nm) and increased towards IR region with increase laser energy and laser wavelength. SEM and TEM exhibited spherical shape …

Go to article

Seasonal Variation Of Residual Aluminum Concentration In Drinking Water, Layla Alwan, Ayat Mahdi Aug 2026

Seasonal Variation Of Residual Aluminum Concentration In Drinking Water, Layla Alwan, Ayat Mahdi

Engineering and Technology Journal

Data for aluminum concentration in Baghdad raw and drinking water have been taken from Baghdad Mayoralty for the period of the year (2005-2006) and for six water treatment plants (Al-Karkh, East Tigris, Al-Wathba, Al-Karama, Al-Qadisia and Al-Dora). The available data were analyzed by using statistical programs like (spss, statistica, grapher and excel) .Relation with water quality parameters was obtained like relation with pH and temperature. From the study the pH value was found to be ranged between (7.45-7.85) in supplied water for minimum aluminum residual. From the contour plot results show that an equation has been concluded which connect concentration …

Go to article

Ecological Risk Assessment Of Chromium Pollution In The Soil Of Industrial Area Within Baghdad City, Rawnaq Mahdi, Athmar Al-Mashhady Aug 2026

Ecological Risk Assessment Of Chromium Pollution In The Soil Of Industrial Area Within Baghdad City, Rawnaq Mahdi, Athmar Al-Mashhady

Engineering and Technology Journal

Thirty-five soil samples were collected from the Tanning Factory Industrial District within Baghdad city to investigate the soil pollution occur through four directions of the tanning plant. The soil samples exhibited high concentrations of Cr than the reported values of worldwide mean of unpolluted soils. The geoaccumulation index showed that the soil samples were moderately polluted by Cr at the north of the factory while the soil sample showed extremely polluted at the south and east of the factory. Moreover, the soil samples collected from west of the factory were strongly polluted. The result of the calculated enrichment factor (64.52-1075.22) …

Go to article

Ultrasonic Technique In Treating Wastewater By Electrocoagulation, Najem Al-Rubaiey, Mohammed Al-Barazanjy Aug 2026

Ultrasonic Technique In Treating Wastewater By Electrocoagulation, Najem Al-Rubaiey, Mohammed Al-Barazanjy

Engineering and Technology Journal

Electrocoagulation Treatment can be considered as a favorable tool for the removal of many pollutants of various forms of wastewater. These pollutants may include the removal of colloidal, the breaking-up of emulsions and heavy metals. This process consists of the disintegration of the anodes (usually iron or aluminum), exciting the creation of coagulant mixtures in wastewater. That will aid to coagulate contaminants and generate bubbles in favor of mixing and elimination of solids suspension by flotation. Recently, the arrangement of using this technique with other treatment tools has turned out to be an interesting subject leading to an improvement in …

Go to article

Environmental Impact Assessment For Brick Factory In Baghdad, Iraq, Saadi Al-Nuzal, Salih Al-Bakri, Sara Zankana Aug 2026

Environmental Impact Assessment For Brick Factory In Baghdad, Iraq, Saadi Al-Nuzal, Salih Al-Bakri, Sara Zankana

Engineering and Technology Journal

The environmental and social impacts of bricks factory based on the information's collected from old brick factories in Al-Nahrawan. This information includes water, air and soil sample analysis, community questionnaire, climate and topography of the region and standards to create model for modern brick factory. Practically the results of the analysis of soil pH, exceed the determinants of the WHO, while some cations such as Ca2+, Mg2+, Zn2+, Cr3+, Ni2+ , carbon content, and TDS were within the limit. High values for volatile organic compounds, PMs, TSP, NO2 and SO2 resulting from the combustion of the fuel used in the …

Go to article

Potential Of Ethylhexyl Ester Oil To Enhance Drilling Of Hthp Wellbores, Lina Jassim, Robiah Yunus, Suraya Abdul Rashid, Amar Salleh Salleh Aug 2026

Potential Of Ethylhexyl Ester Oil To Enhance Drilling Of Hthp Wellbores, Lina Jassim, Robiah Yunus, Suraya Abdul Rashid, Amar Salleh Salleh

Engineering and Technology Journal

Ester-based drilling fluids have been accepted as an alternative to mineral oils in drilling applications and currently being utilized to drill oil or gas wells around the world. However, the ester-based fluids have deficiencies that limit its ability to carry and transfer drilled solids, stabilize the wellbore and drill the extended reach wells. Several approaches have been considered to overcome the ester limitations. Thus, the main aim of this study is to overcome these limitations by developing the high performance ester-based green drilling fluids for deep and ultra-deep wells. The low-pressure technology was applied in the synthesis of the ester …

Go to article

The Role And Important Of Internet Of Things In Building Sustainable City, Nahla Alwan, Muna Al-Nuaimi Aug 2026

The Role And Important Of Internet Of Things In Building Sustainable City, Nahla Alwan, Muna Al-Nuaimi

Engineering and Technology Journal

Every year many people migrate from country to city to live there. This will load a big pressure on the whole living in the city, Baghdad city also suffer from this problem in addition to other found problems like energy consumption , waste accumulate , Traffic congestion, noise, environmental pollution. To offer a good sustainable future living to population without any damage to environment and to solve many problems , one can use internet of things which is the connection network of the things especially with high spread of networks now which Internet of things based on it .the purpose …

Go to article

Green Synthesis, Characterization And Antimicrobial Activity Of Titanium Dioxide Nanoparticles Using Laser Ablation Technique, Azhar Haleem, Ruaa Abbas, Abdulhadi Kadhim Aug 2026

Green Synthesis, Characterization And Antimicrobial Activity Of Titanium Dioxide Nanoparticles Using Laser Ablation Technique, Azhar Haleem, Ruaa Abbas, Abdulhadi Kadhim

Engineering and Technology Journal

Titanium dioxide nanaoparticles (TiO2 NPs) were prepared using laser ablation technique by ablation of titanium target immersed in distilled de-ionized water (DDW) by Q-switched pulsed Nd:YAG laser of 1064 nm, 1 Hz, (490) mJ and 700 pulse. UV-visible spectrophotometer and Transmission Electron Microscopy (TEM) were used to characterize the optical and morphological properties of prepared nanoparticles, respectively. The absorption spectrum of TiO2 NPs was at ultraviolet-region (214 nm) due to Surface Plasmon Resonance (SPR), and the particles size distribution of the prepared nanoparticles ranged from 30 to 100 nm. The antifungal activity ofTiOR2R NPs was carried out against Microsporum canis. …

Go to article

The Use Of Photocatalytic Cementitious Coatings To Reduce Nitric Oxide From Ambient Air, Ayat Hussian, Riyad Al Anbari, Maan Hassan Aug 2026

The Use Of Photocatalytic Cementitious Coatings To Reduce Nitric Oxide From Ambient Air, Ayat Hussian, Riyad Al Anbari, Maan Hassan

Engineering and Technology Journal

Titanuim dioxide represents a novel photocatalyst material that can be used in different ways for air pollutants remediation. Air pollutants that are spreaded in the surrounding air could be transferred to more complex materials, especially in the presence of sunlight. To study the possibility for the reduction of these pollutants a laboratory tests have been conducted on the coated specimen substrate by using nitric oxide as pollutant gas, and there efficiency in gas removal was monitored with time. Two different particle sizes of TiO2 have been used; micro with particle size range between 150-200 nm and nano PC105 with particle …

Go to article

Studying The Effect Of Ambient Temperature On Wastewater Degradation In Simulated Self-Purification Aerated Sewer System, Tala Al-Khateeb, Riyad Al-Anbari, Kareem Al-Jumaili Aug 2026

Studying The Effect Of Ambient Temperature On Wastewater Degradation In Simulated Self-Purification Aerated Sewer System, Tala Al-Khateeb, Riyad Al-Anbari, Kareem Al-Jumaili

Engineering and Technology Journal

Designing and operating a simulated gravity sewer system had been accomplished in the current research. The design had been provided with aeration system in order to deliver oxygen to microorganisms presented in sewage water. The system had been used in three different seasons in order to investigate the ambient temperature effect on treating wastewater. The results revealed that ambient temperature had a significant role in organic waste degradation powered by the presence of air into sewage pipes and level tanks. Maximum degradation measured in terms of chemical oxygen demand removal (RCOD) was recorded to be 14.28 under 30 OC ambient …

Go to article

Potential Of Alfalfa For Use In Phytoremediation Of Soil Polluted With Total Petroleum Hydrocarbons, Abdul Hameed Al-Obaidy, Riyad Al-Anbari, Sara Hassan Aug 2026

Potential Of Alfalfa For Use In Phytoremediation Of Soil Polluted With Total Petroleum Hydrocarbons, Abdul Hameed Al-Obaidy, Riyad Al-Anbari, Sara Hassan

Engineering and Technology Journal

Remediation technology is a promising technique decrease pollutant like hydrocarbons from the environment. An experimental work was made at green house of University of Technology in order to study the effect of crude oil on the vegetate growth and to measure the decrement which happened on shoot height, germination rate and the reduction of total petroleum hydrocarbon (TPH), which result, by this phytoremediation technique. The samples of soil were measured for TPH reduction and removal by Horiba model (oil content analyzer) OCMA–350. Five doses were used in this experiment (0 control, 10x103, 30 x103, 50 x103, 75 x103) (mg crude …

Go to article

Generalized Dependent Elements Of Generalized Reverse Derivation On Semiprime Rings, Shaimaa Yass Aug 2026

Generalized Dependent Elements Of Generalized Reverse Derivation On Semiprime Rings, Shaimaa Yass

Engineering and Technology Journal

Let R be an associative ring, and Š:RR be a map, if there existsan element eR such that Š(u)e= [u,e]e, for every uR, in this case e is calledGeneralized Dependent Element of Š, and Ğ-D(Š) denote the set of allGeneralized Dependent Elements of Š. In this paper the result proved, let R besemiprime ring, and F : RR is a generalized reverse derivation, related withderivation d, then eĞ-D(F), iff, eZ(R) and eF(u) =0 for every uR.

Go to article

Effect Of Laser Pulses On Characterization Of Zincoxide Thin Film Prepared By Pld, Suaad Shaker, Asma Mohammed, Majid Khalaf Aug 2026

Effect Of Laser Pulses On Characterization Of Zincoxide Thin Film Prepared By Pld, Suaad Shaker, Asma Mohammed, Majid Khalaf

Engineering and Technology Journal

In this work, ZnO thin films have been deposition using pulsed laserdeposition (PLD) method on glass and Si (111) substrates at different laserpulsed. Some properties of ZnO thin films were studied, the results of XRDexplain Zinc oxidethin films with hexagonal wurtzite structure with thicknessabout 155and 200 nm. FTIR spectrum shows the existence of Zn – O bond thatappear the texture of ZnOnanostructures. The root mean square of thin filmswere explained with the range 8.31–15.2 nm with particle size about 41.6 -45.41and was only slightly dependent on number of laser pulses. Zinc oxide thinfilms showed transmittance of over 80% .The photovoltaic …

Go to article

Analysis Of Image Noise Reduction Using Neural Network, Mohanad Abdulwahed Aug 2026

Analysis Of Image Noise Reduction Using Neural Network, Mohanad Abdulwahed

Engineering and Technology Journal

Noise adding methods (impulse and Gaussian) are using in thiswork, adding this type of noise employ to mensuration the image quality asresult, therefore transform of (RGB) colors to another type of colorimpersonation that easy to deal with it, also sensitivity of human eyes to detectthe colors. Applying Noise reduction (mean method, mode method, medianmethod) ,By using a test image, we demonstrate that the filtering structureyields an output image which is significantly better than those of median,weighted median .The program of this work is written with Delphi Language,which have some flexibility to deal with image that's not found in otherlanguage. The …

Go to article

Antioxidant Activity Of Linalool, Majid S. Jabir, Ali Taha, Usama Sahib Aug 2026

Antioxidant Activity Of Linalool, Majid S. Jabir, Ali Taha, Usama Sahib

Engineering and Technology Journal

In recent years, Essential oils from their various aromatic plants hadbeen reported to be used in treating of many types of cancer due to their antitumoractivity. In addition, numerous studies had investigated the highest capability ofchemopreventive phytochemicals compound to act as anticancer drugs. In thepresent research, the antioxidant activity of Linalool on free radicals compoundswas studied. The Antioxidant activity was performed using two methods, DPPHand Hydrogen Peroxide (H2O2) Scavenging Capacity. The DPPH scavengingactivity demonstrated that Linalool had antioxidant activity comparing withascorbic acid. Linalool demonstrated moderate antioxidant activity with50.57471% compared with ascorbic acid that showed 86%. Meanwhile, H2O2scavenging capacity methods investigated …

Go to article

Assessment Of Some Heavy Metal Concentrations In Drilling Mud Samples In Az Zubair Oil Field, Basra, Iraq, Sahar Amin, Abdul Hamid Al- Obiady, Rana Alani, Athmar Al-Mashhady Al-Mashhady Aug 2026

Assessment Of Some Heavy Metal Concentrations In Drilling Mud Samples In Az Zubair Oil Field, Basra, Iraq, Sahar Amin, Abdul Hamid Al- Obiady, Rana Alani, Athmar Al-Mashhady Al-Mashhady

Engineering and Technology Journal

Analysis of eight heavy metal concentrations (Cd, Cr, Cu, Fe, Mn,Ni, Pb and Zn) of 14 drilling mud samples collected from oil well at differentdepths which is located in AZ Zubair oil field-Basra was done in this study .The samples were measured using atomic absorption spectrophotometry.Obtained results indicated that the heavy metal concentrations range from thelowest value of 1.66mg/kg for Cd to the highest value of 1235.86mg/kg forFe. The abundance trend for the heavy metals concentration was in thedescending order of Fe, Mn, Ni, Cu, Cr, Zn, Pb, and Cd. Four parameters:Enrichment Factor (EF), Contamination Factor (CF), Geo-accumulationIndex (Igeo) and …

Go to article

Transesterification Of Castor Oil By Using Methanol And Ethanol (50/50) Mixture, Muna Khudhair, Sajeda Husain, Zahraa Jassim, Shefaa Salih Salih Aug 2026

Transesterification Of Castor Oil By Using Methanol And Ethanol (50/50) Mixture, Muna Khudhair, Sajeda Husain, Zahraa Jassim, Shefaa Salih Salih

Engineering and Technology Journal

Biodiesel is gaining considerable attention as a renewable sourceof energy, as an alternative to petroleum fuel and can be used in enginewithout modification in this paper, the profile of preparation of fatty acidmethyl ethyl ester from castor oil via a base-catalyzed transesterification wasinvestigated.. The variables chosen for the study were reaction time, oil to(methanol and ethanol) mixture ratio, and reaction temperature at constantconcentration of KOH(catalyst) .The effects of these variables on viscosity andspecific gravity were studied.

Go to article

Optical And Structural Properties Of (In2o3:Zno:Au) Nanocomposite Thin Films Prepared By Spray Pyrolysis Method, Abdul Hadi Judran, Farah Noori, Nawres Hamza Aug 2026

Optical And Structural Properties Of (In2o3:Zno:Au) Nanocomposite Thin Films Prepared By Spray Pyrolysis Method, Abdul Hadi Judran, Farah Noori, Nawres Hamza

Engineering and Technology Journal

Indium Oxide (In2O3) and Zinc Oxide (ZnO) nanoparticles weremixed carefully with gold nanoparticles, which were synthesis, by turkevichmethod. By using the method of spray pyrolysis different concentrations(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 thesechemical compounds were used to preformed nanocomposite thin films ofthickness of (250-300) nm. The structural properties were studied for allnanocomposite thin film samples with different concentrations. The existenceof Miller indices conforms to (211), (222), (400), (333), (440) and (622) majorlattice planes of the cubic spinel phase of In2O3 at 2θ =20.17, 33, 44.66, 50.95,59.02, 72.48 and 73.12. While secondary lattice …

Go to article

Propose An Arabic Captcha System Based On Chaotic Maps, Mariam Sulaiman, Nidaa Hassan Aug 2026

Propose An Arabic Captcha System Based On Chaotic Maps, Mariam Sulaiman, Nidaa Hassan

Engineering and Technology Journal

CAPTCHA is the facility that prevents web bots from accessingthe web services by generating tests to check whether the user is human orcomputer program. In this paper, a new pseudo-random bits generator basedon chaotic system is offered to generate Arabic letters and numbers forCAPTCHA system. The proposed generator uses two Jacobian ellipticChebyshev rational maps that are combined in the algorithm to produce ablock of 32bits in each iteration. A specified number of bits are selected fromthe resulted blocks to be converted to a set of Arabic letters and numbers.National Institute of Standards and Technology (NIST) statistical test suiteare used to …

Go to article

Theoretical Study Of Comparative Between The Speed Of Penetration And Cutting Using A Laser Beam, Ekhlas Mahmood Aug 2026

Theoretical Study Of Comparative Between The Speed Of Penetration And Cutting Using A Laser Beam, Ekhlas Mahmood

Engineering and Technology Journal

This research is devoted to study the effect of a laser beampower TEA-CO2 , Nd- YAG laser, and thermal properties of the materialswhen it is constant once and varying another once with the time on thepenetration and cutting speeds. It is concluded that the processes ofpenetration and cutting by using laser Nd-YAG is the best comparativewith using of laser TEA-CO2, penetration speeds when (P = P0, C = C0,and ρ = ρ0) by using laser Nd-YAG greater than penetration speeds byusing of laser TEA-CO2 by 15.5 approximately while penetration speedswhen (P = P(t), C = C0, and ρ = ρ0) …

Go to article

C-Reactive Protein As A Marker In The Iraq Patients With Poisoning Thyroid Gland Disease, Maryam Kamel, Abbas Mohammed, Ali Ibrahim Aug 2026

C-Reactive Protein As A Marker In The Iraq Patients With Poisoning Thyroid Gland Disease, Maryam Kamel, Abbas Mohammed, Ali Ibrahim

Engineering and Technology Journal

The present study aimed to investigate the possibility of using Creactiveprotein (CRP) and the level of CRP in serum sample as a markerfor patients with poisoning thyroid gland disease. In addition, therelationship between inflammation and poisoning thyroid gland. About 21of serum samples were examined from patients with poisoning thyroid gland(aged between 14 and 60 years old). Qualitative test was done to detect thepresence of CRP in the patient’s serum. The qualitative test showed that21(100%) patients with poisoning thyroid gland give positive result to CRP.The HPLC analysis done to determine the concentration of CRP in patient'sserum. The HPLC analysis showed that …

Go to article

Effects Of Electrode Geometry On Energy Transfer Characteristics Of Electrolytic Cells Used For Production Of Metallic Nanostructures, Noor Naji Aug 2026

Effects Of Electrode Geometry On Energy Transfer Characteristics Of Electrolytic Cells Used For Production Of Metallic Nanostructures, Noor Naji

Engineering and Technology Journal

In this work, the effects of geometries of stainless steel electrodes used inelectrolytic analysis cells were studied. These cells are used for preparation ofmetallic nanostructures. These effects can be observed by studying energy transfercharacteristics of electrolytic cell as the electric field and current density aredetermined by its electrode geometry. Four electrode geometries were used in thiswork.

Go to article

Preparation And Investigation Of Flexural Strength And Impact Strength For Nano Hybrid Composite Materials Of The Tri- Polymeric Blend Used In Structural Applications, Sihama I. Salih, Wleed Salih, Mustafa Mohammed Aug 2026

Preparation And Investigation Of Flexural Strength And Impact Strength For Nano Hybrid Composite Materials Of The Tri- Polymeric Blend Used In Structural Applications, Sihama I. Salih, Wleed Salih, Mustafa Mohammed

Engineering and Technology Journal

Current work is aimed to preparation the nanocomposites laminatesof low density and good durability to use in structural applications. So, in thispaper, the preparation and compare of some mechanical properties of twogroups of tri-polymer blends composites consisting of ((93% unsaturatedpolyester resin (UP)+(5%PMMA) (Poly methyl methacrylate)+2%NR(Natural Rubber)) as the matrix materials. Added the reinforce materials(silica (SiO2) and zirconia (ZrO2) nanoparticles) individually, with differentvolume fraction of (0, 0.5, 1, 1.5%) to the ternary polymer blends accordingto the following formula:- [((100-X) (93%UP)+2%NR+5%PMMA): (X%SiO2or X% ZrO2)] The first group is composed of matrix material reinforced withzirconia (ZrO2) nanoparticles with average diameter of nanoparticles(56.88nm) and …

Go to article

Proposed Video Watermarking Algorithm Based On Edge Or Corner Regions, Nidaa Hassan, Rusul Abbas Aug 2026

Proposed Video Watermarking Algorithm Based On Edge Or Corner Regions, Nidaa Hassan, Rusul Abbas

Engineering and Technology Journal

In this research, a watermark algorithm is proposed to embed a secretmessage in a digital video. The proposed algorithm exploits edges and cornersregions in images, to be hosts for hiding secret bits. Embedding in these regionsis consider optimal since these regions featuring with colors variation, soembedding will not effect on uniform distribution of colors, and on transparencyrequirement. The process of embedding and extracting watermarked massage isimplemented by decomposition digital video to several images (frames), thenselecting the edges and corners regions to be host locations, Least SignificantBit (LSB) techniques are used to embed watermarked message in images ofdigital video. Investigations results …

Go to article

Re-Use Of Glass Wool Fiber As New Composite Polyester System, Raghad Abass Aug 2026

Re-Use Of Glass Wool Fiber As New Composite Polyester System, Raghad Abass

Engineering and Technology Journal

Four different ratios of composites were prepared by varying thewool glass, at different additive weight percentages (0, 0.2, 0.4, 0.6 wt. %)in order to study the effect of glass wool reinforcement on mechanical andchemical properties of GW-reinforced polyester composites. The vacuumbagging technique was adopted for the fabrication of hybrid compositematerials. Afterword many mechanical properties as hardness, impactresistance, and compression resistance for these hybrid composites wereevaluated according ASTM Standards. The mechanical properties wereimproved as the fibers reinforcement content increased in the matrixmaterial. The chemical properties were improved as increased the weight ofglass wool. The chemical and mechanical properties have been increasedfor …

Go to article

Text File Hiding Randomly Using Secret Sharing Scheme, Yossra Ali, Hussein Mankhi Aug 2026

Text File Hiding Randomly Using Secret Sharing Scheme, Yossra Ali, Hussein Mankhi

Engineering and Technology Journal

Exchange of information through the channels of communication can beunsafe. Communication media are not safe to send sensitive information so it isnecessary to provide the protection of information from disclosure to unauthorizedpersons. This research presented the method to information security is donethrough information hiding into the cover image using a least significant bit (LSB)technique, where a text file is encrypted using a secret sharing scheme. Then,generating positions to hiding information in a random manner of cover image,which is difficult to predict hiding in the image-by-image analysis or statisticalanalyzes. Where it provides two levels of information security through encryptionof a text …

Go to article

Density And Ultrasonic Pulse Velocity Investigation Of Self-Compacting Carbon Fiber- Reinforced Concrete, G.A. Salman Aug 2026

Density And Ultrasonic Pulse Velocity Investigation Of Self-Compacting Carbon Fiber- Reinforced Concrete, G.A. Salman

Engineering and Technology Journal

comprehensive research has been carried out to understand the effect of adding carbon fibers to density and ultrasonic pulse velocity of self-compacting concrete. Fifteen SCC mixes were prepared with two types of mineral admixtures and carbon fibers. Metakaoline and silica fume were used as mineral admixtures while carbon fibers were used as fiber inclusions. Two different fiber length (6mm and12mm) and fiber fraction (0.1 % and 0.5 %) was used. Different parameters such as slump flow diameter, T500 time, V-funnel time, blocking ratio and filling height difference were used to evaluate fresh state properties. Air-dry density and Ultrasonic Pulse Velocity …

Go to article

Design A Fuzzy Pid Controller For Trajectory Tracking Of Mobile Robot, M.J. Mohamed, M.Y. Abbas Aug 2026

Design A Fuzzy Pid Controller For Trajectory Tracking Of Mobile Robot, M.J. Mohamed, M.Y. Abbas

Engineering and Technology Journal

In this paper, a trajectory tracking control for a non-holonomic differential wheeled mobile robot (WMR) system is presented. A big number of investigations have been used the kinematic model of mobile robot which is a nonlinear model in nature, thus a hard task to control it. This work focuses on the design of fuzzy PID controller tuned with a firefly optimization algorithm for the kinematic model of mobile robot. The firefly optimization algorithm has been used to find the best values of controller's parameters. The aim of this controller is trying to force the mobile robot tracking a pre-defined continuous …

Go to article

First Prev Next Last