Digital Commons Network^™

Workability Of Hybrid Fiber Reinforced Self-Compacting Concrete, Tareq Al-Attar, Samer Daoud, Anmar Dhaher

Engineering and Technology Journal

The aim of this work is to evaluate the effect of adding different types of fibers on the fresh properties of the self-compacting concrete, SCC. The used types of fibers were steel (with volume ratios of 0.75, 1.0 and 1.25 %) and polypropylene fibers (0.10 and 0.15 %) and a hybrid system of these fibers (0.65 % steel and 0.10 % polypropylene). The conducted tests in the fresh state were slump flow, T500, V-funnel and L-box. It was noticed that increasing the volume fraction of fibers would lead to decrease in the workability of SCC. According to EFNARC requirements for …

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 …

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 …

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 …

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 …

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 …

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. …

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 …

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 …

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 …

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 …

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.

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 …

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) …

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.

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 …

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 …

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 …

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 …

Effect Of Polymer Additives On Permeability Of Asphalt Concrete Mixtures, H.H. Jony, M.M. Hilal, D.S. Helan

Engineering and Technology Journal

The presence of water in the pavement structure causes early deterioration and leads to less pavement durability as a result of loss of bond between aggregate and binder and may causes loss of strength and stability in mixture, The main goal of this study was to investigate the effect of various polymer additives on permeability of asphalt concrete mixture. The surface wearing coarse type IIIA was chosen in this study. Three types of polymer additives were used in this study; (7% Latex Emulsion (LE), 7% Poly Vinyl Acetate with 4% Styrene Butadiene Styrene (PVA + SBS) and 8% Ethylene Diamine …

Composition Design Modeling And Experimental Verification Of (Co Ni Al) Shape Memory Alloys, M.N. Arbilei

Engineering and Technology Journal

The most important concepts to apply a shape memory alloy in manyindustrial applications is the composition design that controls thetransformation temperatures. In this paper, two mathematical models werecreated to predict the transformation temperatures for poly-crystalline (Co-Ni-Al) alloys. The data that was depend on to find the relation between chemicalcomposition and transformation temperatures were concluded from previouswork and approved by preparing samples in investigation practically. Fourdifferent alloys were prepared to verify this relation. It was indicated that thebest criteria that present the chemical composition is the (e/a) and make thealloy applicable for different applications. These suggested chemicalcompounds could be controlled and …

Bio And Mechanical Evaluation Of An Enhanced Bio Glass, J.T. Al-Haidary, M.N. Arbilei, J.S. Kashan

Engineering and Technology Journal

These Tap casting and powder metallurgy methods used to produce the 45S5 Bioglass. This study revealed that the bioglass modified with 0.2% Y2O3 has about 700% increases in hardness. The modification of bioglass with 0.2% Y2O3 leads to a 44% increase in fracture toughness values. This study revealed that the 0.2% Y2O3 bioglass composition-modification improves the fracture strength by almost 150%. The laboratory histological sections showed that 45S5 bioglass (original composition materials showed nether systemic nor local inflammation with new bone formation at site of implantation. The Y2O3 modified the 45S5 bioglass showed no inflammation reactions as well, but no …

Aluminum Concentration Drives The Structural Evolution Of Magnetron Sputtering (Ti, Al) C Thin Film, A. Al-Ghaban

Engineering and Technology Journal

The effect of deposited Al on the structural evolution of TiC films with a chemical composition variation has investigated during combinatorial magnetron sputtering of binary ceramic (Ti, Al) C. The here produced thin films have been investigated by energy dispersive X-ray spectroscopy (EDX) and X-ray diffraction technique XRD. The structural evolution of combinatorial magnetron sputtered Ti-Al-C system deposited at room temperature fined to be located in the extent of: Ti at.%= 36.74-60.55, Al at.%= 12.05-30.61 and C at.%= 22.53-47.69. XRD results show that films are constituted of mostly cubic (Ti, Al) C phase as well as an X-ray amorphous region …

A Multiband Printed Slot Antenna Loaded With Trapezoidal Slots For Wlan And Wimax Applications, H.T. Ziboon

Engineering and Technology Journal

In this paper, a multiband printed antenna has been proposed. The antenna structure is inspired from that of the classical multi-cavity magnetron resonator. The antenna structure is composed of a slot annular ring structure etched on the ground plane of a substrate. The outer circle of the annular ring is loaded with radially arranged small trapezoidal slots. While on the other side of the substrate, the antenna is fed with a 50-Ohm microstrip line. A parametric study has been conducted to explore the effect of the different antenna dimensions on its performance. The results show that the proposed antenna offers …

Characterization Of Liquid Produced From Catalytic Pyrolysis Of Mixed Polystyrene And Polyethylene Terephthalate Plastic, R.S. Almukhtar, S.I.H. Abduallah

Engineering and Technology Journal

Plastic wastes accumulation increased each year in the environment. Plastics types are different such as polystyrene (PS), polyethylene terephthalate (PET), polypropylene (PP), low-density polyethylene (LDPE), high-density polyethylene (HDPE) and polyvinyl chloride (PVC). In this paper, catalytic pyrolysis of Polystyrene and Polyethy terephthalate were studied to find the effect of PET on the pyrolysis of PS. The reaction took place in stainless batch tubular reactor to determine the effect of temperature and residence time. The maximum liquid products yield at optimum temperature and heating time(60 min) was 77% , 67.56%, 54% and 37.48% for PS, 10%PET + PS, 20%PET + PS …

Accuracy Assessment Of World View-2 Satellite Imagery For Planimetric Maps Production, A.Z. Khalaf, I.A.K. Alwan, T.A. Kadhum

Engineering and Technology Journal

A planimetric map of scale 1:10,000 meets the requirements of a large segment of user’s maps for instance urban city planners and various GIS implementations. Nowadays, a very high-resolution satellite images, such as World View02 (WV02) with spatial resolution of 0.5 m, are very important to produce planimetric maps or update existing ones. Main aim of this research is the assessment of WV02 image for production of the planimetric photomap of scale 1:10,000 with class 1 according to ASPRS standards (ASPRS give accuracy tolerances for map scales at 1:20,000 or larger, this accuracy reported as Class 1, 2, or 3). …

Debt Financing Cost And Green Innovation: The Conditioning Role Of Financing Dependence Structure In Chinese Manufacturing Firms, Hongzhuo Chen, Mohd Faizal Basri, Hazianti Abdul Halim

International Journal of Management, Finance and Accounting

Debt-financing costs are generally considered to be restrictive for corporate innovation; however, their role in green innovation may be conditional rather than uniformly negative. Based on a sample of A-share listed companies from 2012 to 2023, this study examines whether this cost is related to green patenting and, more importantly, how this relationship varies with firms’ financing dependence structure. Green innovation can be reflected in the scale of total green patent applications and the depth of green invention applications. Based on the estimates, both indicators are positively correlated with the cost of debt, and the impact is relatively stronger for …

“When I’M Not Heard, I Feel Like I Don’T Matter”: Advancing Equity In Disability Policy Through Critical Participatory Action Research With People With Intellectual Disability, Cris Marchionne

Student Theses

People with intellectual disability deserve a system that offers flexible, timely, and person-centered support — one that is innovative, sustainable, and holistic in enabling them to live fulfilling lives. This qualitative study, grounded in Critical Participatory Action Research (CPAR), examines how people with intellectual disability experience participation in decision-making within New York State's disability service system. By centering lived experience, the study identifies factors that facilitate or hinder participation in decision-making and examines structural, social, and policy-related barriers that limit agency. Through six focus groups and a Photovoice project with self-advocates receiving OPWDD services, participants described systemic barriers that limited …

The Influence Of Exercise On Cardiometabolic Risk In Perimenopause: A Systematic Review, Bibha Gautam, Deborah J. Clegg, Mary Madeline Rogge, Jeni Page

International Nursing Research Congress (INRC)

Purpose: Perimenopause is a biologically vulnerable period characterized by hormonal fluctuations, visceral fat accumulation, and increasing insulin resistance, factors that elevate cardiometabolic risk and contribute to the development of cardiometabolic syndrome (CMS), defined as the presence of three or more metabolic abnormalities. These changes reflect a continuum of metabolic vulnerability that may emerge before CMS becomes clinically detectable. Although regular exercise can mitigate this risk, limited evidence clarifies which exercise modalities are most effective in reducing metabolic risk and CMS prevalence among women undergoing the perimenopausal transition. Despite facing a distinct and often underrecognized vulnerability to CMS, perimenopausal women remain …

Tending To Emotional Wellness Needs In A Baccalaureate Second-Degree Accelerated Nursing Program, Paulette Dorney, Shirley Guider, Elise M. Colancecco, Taylor L. Grube, Karen Diance Groller, Shelly Strauss

International Nursing Research Congress (INRC)

Background: Baccalaureate second-degree accelerated nursing (ABSN) programs have grown substantially as a response to needs for a qualified workforce. These programs are designed to prepare prelicensure nurses to enter the workforce in as little as 11 to 18 months. To maintain the rigor of traditional nursing programs, ABSN programs have demanding, compressed schedules. Recent literature has brought attention to the impact of academic demands on the emotional wellness experienced by traditional four-year prelicensure nursing students (Bernier-Carney, 2025; Vo et al., 2023) but has failed to review its impact in ABSN cohorts.

Aim: This qualitative descriptive research study aimed to describe …