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Analytical Comparison On Inductive Wireless Power Transfer System For Biomedical Devices, Suhad Jasim Aug 2026

Analytical Comparison On Inductive Wireless Power Transfer System For Biomedical Devices, Suhad Jasim

Engineering and Technology Journal

This paper presents a comparative analysis for the four basic topologies of inductive link wireless power transmission, thereby allowing designers to select the most appropriate topology according to the requirements of the application. Wireless energy transfer systems applied for diagnostic or monitoring signals in biomedical devices to eliminate the needs for tethering wires or implantable batteries. Inductive link studied as main technique in wireless power transmission for biomedical devices. In various applications, the maximum delivered power and maximum efficiency of an inductive link system are two important factors to be considered. The efficiency expression for power transfer of the four …

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Optimum Site Selection For Groundwater Wells Using Integration Between Gis And Hydrogeophysical Data, Nadia Aziz, Raghad Hasan, Zaidoon Abdulrazzaq Aug 2026

Optimum Site Selection For Groundwater Wells Using Integration Between Gis And Hydrogeophysical Data, Nadia Aziz, Raghad Hasan, Zaidoon Abdulrazzaq

Engineering and Technology Journal

This paper aim to select the best site to drill a groundwater wells by using of Geographic Information System (GIS) as a tool for decision-making. The study conducted in Fadak farm in Bahr Al-Najaf which is located west and southwest of Najaf city, and extends more than (40 km) away from it, to drill a new wells for irrigations usages. The optimal location selected depending on the available hydrogeophysical data includes resistivity, depth, thickness and transmissivity of aquifer. The weighted factor maps generated for the evidence layers were given weights depending on the significance of each parameter, these parameters were …

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Effects Of Enhancement P+ Layer On Igbt Operation, Inmar Ghazi, Hayder Assafli, Wail Nassir Aug 2026

Effects Of Enhancement P+ Layer On Igbt Operation, Inmar Ghazi, Hayder Assafli, Wail Nassir

Engineering and Technology Journal

IGBT (Insulated-gate bipolar transistor), is used widely in high voltage applications, it is very important to realize the doping profile in order to understand the design and the electrical performances of such devices. The performance depends on the layer, doping, and a carrier distribution among each layer. A specific selected layer can be added with precise properties for enhancing the device and increase the low current operate requirement. In this paper, an IGBT device is an enhanced and better performance achieved by the addition of a heavily positive doped intermediate layer. The collector current is decreased from 0.05 mA to …

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Enhancement Of Thermal Storage Properties Of Phase Change Material By Using Metallic Swarf, Abdulkareem Khudhair, Falah Hatem, Dher Mohammed Ridha Aug 2026

Enhancement Of Thermal Storage Properties Of Phase Change Material By Using Metallic Swarf, Abdulkareem Khudhair, Falah Hatem, Dher Mohammed Ridha

Engineering and Technology Journal

The phase change materials (PCM) is commonly used for storage heat as a latent heat, the main disadvantage of this method is slow response time during charging and discharging; this due to the PCM thermal properties. This work studied experimentally the enhancement of thermal properties of PCM by adding various metallic swarf such as copper, aluminum and iron swarf. Metallic swarf used as thermal conductivity promoter to produce modified paraffin wax samples. The addition of the previous enhancers was conducted with a weight fraction of (7.5%, 12.5% and 17.5%) to the whole weight of the mixture. The experimental results showed …

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Proposed Design Against High-Cycle Fatigue Failure Of Metallic Beams Using Lamination, Riyah Kiter Aug 2026

Proposed Design Against High-Cycle Fatigue Failure Of Metallic Beams Using Lamination, Riyah Kiter

Engineering and Technology Journal

Fatigue analysis helps in predicting life of the component and seeks improvements of the whole process in design phase. Efforts are continually made to combat the fatigue phenomenon, yet certain mechanical components are still failing due to fatigue. The present work proposes a laminated design of beams, which undergo fatigue. The well-known Paris-Erdogan formula was used to theoretically predict fatigue life of the proposed design. The design was shown to enhance fatigue properties through laminating the cross section of the component; Barriers in front of a propagating crack is deliberately included by lamination. Spectacular levels of improvement in the fatigue …

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Stability Analysis Of An Earth Dam Using Geo-Slope Model Under Different Soil Conditions, Usama Mishal, Thair Khayyun Aug 2026

Stability Analysis Of An Earth Dam Using Geo-Slope Model Under Different Soil Conditions, Usama Mishal, Thair Khayyun

Engineering and Technology Journal

Numerical models are used to check the stability of earth dams and to simulate the effects of all the parameters, which affect its safety. The physical properties of the materials used in the construction of an earth dam are one of these important parameters. The finite element analysis software used for numerical modeling in this study is GeoStudio 2007(SEEP/W and SLOPE/W). The total number of finite elements used to simulate the standard model is 13508 (triangular elements with global size = 2m), while the total number of nodes is 6939. The selected case study is Al-Adhaim dam, which is an …

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Investigate The Effect Of Different Kinds Of Discontinuous Fibers On The Mechanical Properties Of Epoxy Matrix Composite Materials, Ahmed Muhammad, Ibrahim Atiyah, Hamza Kamal, Ahmed Al-Mukhtar Al-Mukhtar Aug 2026

Investigate The Effect Of Different Kinds Of Discontinuous Fibers On The Mechanical Properties Of Epoxy Matrix Composite Materials, Ahmed Muhammad, Ibrahim Atiyah, Hamza Kamal, Ahmed Al-Mukhtar Al-Mukhtar

Engineering and Technology Journal

The composite manufacturing has been a wide variety of applications. The low density, stiffness, and weight to strength ratio giving these materials significant mechanical properties in aerospace, and automotive industries. In this work, the specimens of fiber reinforced composites have been prepared by adding different percentage of two types of fibers in epoxy resins matrix. So, the aim of this study is to evaluate the effect of additives on the mechanical properties according to Standard Test Method for Tensile Properties ASTM D3039. The tensile and hardness testing show that the carbon fibers improve the hardness and tensile strength due to …

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Dcf With Fbg For Dispersion Compensation In Optical Fiber Link At Various Bit Rates Using Duobinary Modulation Format, Hussein Mahmood Aug 2026

Dcf With Fbg For Dispersion Compensation In Optical Fiber Link At Various Bit Rates Using Duobinary Modulation Format, Hussein Mahmood

Engineering and Technology Journal

Dispersion is one of the very important parameters that effect on the performance of optical fiber communication systems. It causes pulse broadening, limiting of transmission distance and the number of channels on optical fiber link and low Bit rate. Dispersion compensation fiber (DCF) based on Fiber Bragg Grating (FBG) is widespread used in the dispersion compensation scheme. In this work, the proposed dispersion compensation fiber is included (pre – post–symmetrical) schemes with Fiber Bragg Grating and duo-binary modulation format. These are at various bit rates (10 Gbit/s, 20 Gbit/s, 30 Gbit/s and 40 Gbit/s) and different input laser power from …

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Experimental Study Of Mechanical Properties Of Type Linear Low Density Polyethylene And Mold Design, Samir Amin, Ali Hassan Aug 2026

Experimental Study Of Mechanical Properties Of Type Linear Low Density Polyethylene And Mold Design, Samir Amin, Ali Hassan

Engineering and Technology Journal

In general, the manufacture of plastic materials is commonly in the world due to their applications. Plastic is light weight, cheap, and able to be used in different industries, for example parts of automotive and home tools. This research represents a challenge on how to design and manufacture a changeable mold. First, a mold was designed by the Auto CAD program and then manufactured in the workshop. The mold consists of three parts, the middle part has changeable cavity. The mold was cooled by worm net pipes embedded into the third part. All specimens were manufacture in this mold. The …

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Performance Evaluation Of The V–Basin Tube Solar Collector By Using .Different Nanoparticles And Base Fluids, Ibtisam Hasan, Khaliid Sultan Aug 2026

Performance Evaluation Of The V–Basin Tube Solar Collector By Using .Different Nanoparticles And Base Fluids, Ibtisam Hasan, Khaliid Sultan

Engineering and Technology Journal

This research discuss the performance and evaluation of V –basin collector in heating systems of solar with different nanofluids and base fluids, where metal nanofluids [Ag (20nm) + DW + EG], and metal oxide nanofluid [TiO2 (40nm) + DW + EG]are the used operating fluids with flow rate of 25 lit/hr, 50 lit/hr and ratios of concentration (i.e. 1, 2, 3 and 5 % vol). The base fluids employed in these experiment is distilled water and ethylene glycol. The metal and oxide metal nanofluids are shown a significant improvement in the performance of V –basin tube solar collector with higher …

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Study Of Some Mechanical Properties And Erosive Behavior By Taguchi Method For Hybrid Nano Composites, Reem Mohammed Aug 2026

Study Of Some Mechanical Properties And Erosive Behavior By Taguchi Method For Hybrid Nano Composites, Reem Mohammed

Engineering and Technology Journal

The aim of this research is study the effect Nano TiO2 powder on impact strength, fracture toughness, hardness shore (D) and erosive wear behavior of polymer composites materials are prepared by simple hand lay-up technique. The specimens was prepared by adding (1%, 2%,3%,4%,5% & 6%) weight fraction of nano powder (TiO3) has average size of (16 nm) to unsaturated polyester resin reinforcement with (5%) weight fraction of carbon fiber. The value of erosive wear rate for polymer composite materials can be obtaining after (15 hours) and under effect various parameters such as impingement angle (30 º, 45 º, 60 º, …

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Effect Of Dem And Land Cover Resolutions On Simulated Runoff Of Adhaim Watershed By Swat Model, Mahmoud Saleh Al-Khafaji, Fouad Saeed Aug 2026

Effect Of Dem And Land Cover Resolutions On Simulated Runoff Of Adhaim Watershed By Swat Model, Mahmoud Saleh Al-Khafaji, Fouad Saeed

Engineering and Technology Journal

Accurate estimation of surface runoff by using Soil and Water Assessment Tool (SWAT) model is highly depends on the accuracy of the Digital Elevation Model (DEM), Land Cove and Land Use (LC/LU), soil and weather data as input variables. The interactive and complementary effects of the DEM and LC/LU resolutions on the estimated runoff were not taken into consideration in previous studies. This research aims to study these effects on the accuracy of runoff estimation of Adhaim Watershed by using SWAT Model. Twenty surface runoff estimation SWAT models of Adhaim Watershed were implemented using five DEMs with spatial resolution of …

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Design Of Compact Dual-Mode Bpfs Based On Cantor Fractal Geometry With U-Shaped Capacitive Coupling, Seevan Abdulkareem Aug 2026

Design Of Compact Dual-Mode Bpfs Based On Cantor Fractal Geometry With U-Shaped Capacitive Coupling, Seevan Abdulkareem

Engineering and Technology Journal

This study displays two microstrip bandpass filters using dual mode loop and patch resonators in form of Cantor geometry. The proposed filters exhibits one and two bands frequency responses for each of them respectively. The microstrip filter using Cantor loop has been tested by AWR 12 software package at resonances of 4.55 and 4.58 GHz, whereas for Cantor dual band patch filter has been simulated at band frequencies of 3.6 and 6.84 GHz respectively. RT/ Duroid 6010 substrate has been adopted for filter designs with thickness and relative permittivity of 1.27 mm and 10.8, respectively. The simulated filters have notable …

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Effect Of Nano Carbon Tube On The Mechanical And Physical Properties Of Composites Based On Resin Route, Aseel Abdul-Hussein, Emad Al-Hassani, Marwa Atallah Aug 2026

Effect Of Nano Carbon Tube On The Mechanical And Physical Properties Of Composites Based On Resin Route, Aseel Abdul-Hussein, Emad Al-Hassani, Marwa Atallah

Engineering and Technology Journal

In this work, the physical and mechanical properties of nano composites are investigate. The nano composites consist of matrix was polyester resin and 3% volume fractions of glass fibers as reinforcement with (0.5%, 1%, 1.5%, 2 %( volume fractions of carbon nanotube as filler. Samples of nano composite materials in this research have been prepared by hand – layup. The results showed that the sample (UP+3% GF) has higher water absorption than sample net polyester. As can be noted from the results that the sample (UP+3% GF+2% CNTs) has higher value water absorption than other samples. Also can be observed …

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Using Polyethylene Glycol To Produce Self Cured Cement Mortar, Rasha Rawdhan, Awham Hameed, Shakir Salih Aug 2026

Using Polyethylene Glycol To Produce Self Cured Cement Mortar, Rasha Rawdhan, Awham Hameed, Shakir Salih

Engineering and Technology Journal

The capacity of self-curing admixture is to reduce the evaporation of water from mortar, and subsequently they increase the ability of water retention from mortar contrasted with those traditionally cured mortar. Polymeric phase is disperse in cement causing diminish in water absorption and Likewise its connection with hydrating cement create further bond formation which lead to the increment in strength. In this study two group of mortar samples were prepared, first group consist reference and fly ash mortar, second group prepare with admixtures of polymer were PEG 400 used as self-curing agent in this study. Flow test and setting time …

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Comparison Of The Behavior For Free Standing Pile Group And Piles Of Piled Raft, Awf Al-Kaisi, Falah Rahil, Mohanned Waheed Aug 2026

Comparison Of The Behavior For Free Standing Pile Group And Piles Of Piled Raft, Awf Al-Kaisi, Falah Rahil, Mohanned Waheed

Engineering and Technology Journal

The intended task of this paper is studying the behavior of free standing pile groups and piles of piled raft driven in clayey soil under axial loading. The raft-piles interaction is investigated as well through the two series of tests. Each one of these series includes twelve tests, the two series are conducted with the same configuration, spacing, size of piles and undrained shear strength of soil except that in the free standing group there is a gap of about (20-25 mm) between the raft and the soil surface to have the applied load transferred to the piles only in …

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Effect Of Laser Surface Melting On Chromium Carbide Of 304 Stainless Steels, Sami Jafar, Mohammad Kadhim, Sameer Faayadh Aug 2026

Effect Of Laser Surface Melting On Chromium Carbide Of 304 Stainless Steels, Sami Jafar, Mohammad Kadhim, Sameer Faayadh

Engineering and Technology Journal

In the present study, the effects of laser surface melting (LSM) on chromium carbide of heat treated (AISI 304) austenitic stainless steels (ASS) was studied with the aim to suppress sensitization of 304SS. Austenitic stainless steels were heated (aging) up to (800) ºC at constant holding time for two hours. LSM was conducted by using a (600 W) Yb-YAG laser. The microstructure was characterized by using optical microscopy (OM), scanning electron microscopy (SEM) and X-ray diffraction (XRD). Results shows, refined and homogeneous microstructure which contains austenite (γ) as basically phase and delta ferrite (δ) as the secondary phase, however, chromium …

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H-Infinity Based Full State Feedback Controller Design For Human Swing Leg, Hazem Ali, Azhar Abdulridha Aug 2026

H-Infinity Based Full State Feedback Controller Design For Human Swing Leg, Hazem Ali, Azhar Abdulridha

Engineering and Technology Journal

In this paper, the robustness properties of H-infinity control to produce a dynamic output feedback controller is applied to a human swing leg system. The double pendulum structure is usually used to model this system. The pendulum links will represent the thigh and shank of a human leg. The upper body will be connected to the thigh and then the shank via hip and knee joints. The muscles of thigh and shank are moved by applied two external (servomotor) torques at the hip and knee joints. The mathematical model of the system is developed. The results show that the proposed …

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Development Bearing Capacity Of Piles Embedded In Clayey Soil, Awf Al-Kaisi, Falah Rahil, Mohanned Waheed Aug 2026

Development Bearing Capacity Of Piles Embedded In Clayey Soil, Awf Al-Kaisi, Falah Rahil, Mohanned Waheed

Engineering and Technology Journal

The load carrying capacity of piles resulting from base resistance and shaft resistance, the load transfer mechanism of piles is complicated since the mode of failure of these components is different in addition to the effect of pile installation on the soil surrounding of piles .The intended task of this paper is studying the behavior of pile group model driven in clayey soil subjected to vertical axial loading, and the assessment of the development of resistance of each of the two components, tip resistance and skin friction of the piles of during loading. Twelve piles group tests are conducted at …

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Tuning Of A Pid Controller By Bacterial Foraging Algorithm For Position Control Of Dc Servo Motor, Manal Jasim Aug 2026

Tuning Of A Pid Controller By Bacterial Foraging Algorithm For Position Control Of Dc Servo Motor, Manal Jasim

Engineering and Technology Journal

Controlling the position of Direct Current servo motor is the first aim of this paper, by Bacterial Foraging Algorithm (BFA), the best Proportional – Integral - Derivative (PID) controller parameters were obtained through Mat-Lab application, including the simulation and modeling of Direct Current servo motor, BFA controller and conventional PID Controller as benchmark to the performance of BFA. Proportional – Integral - Derivative controller is a closed loop system, the error made by the Direct Current motor was corrected and determine the correct position to the desired point were controlled By integrating the Proportional – Integral - Derivative controller. Kp, …

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Investigation The Effect Of Nano–Particles And Recycling Mortar Additives On Physical And Mechanical Properties Of Concrete, Alaa Abdul-Hamead, Farhad Othman, Raeid Mohammed Aug 2026

Investigation The Effect Of Nano–Particles And Recycling Mortar Additives On Physical And Mechanical Properties Of Concrete, Alaa Abdul-Hamead, Farhad Othman, Raeid Mohammed

Engineering and Technology Journal

In this paper a lower ratio of nano powder were used from (Al2O3 and ZrO2) (0.5, 1.5and 2. 5 wt %) from cement weight, the average particle size of nano-powder were (20nm). These powders were used in fabrication of Concrete with recycle fine aggregate was replaced Natural fine aggregate(sand) in order to be used in construction application and studies the effect on the concrete. Investigation were done on the concrete including dry density, water absorption%, porosity%, compression strength, and wear rate. The results shows that The nano-Al2O3, nano-ZrO2, and recycle aggregate were adding causes difference effect in the physical and …

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Study The Characteristics Thermal And Mechanical For Unsaturated Polyester Resin Forced By Asbestos Fiber, Zainab Mohsein Aug 2026

Study The Characteristics Thermal And Mechanical For Unsaturated Polyester Resin Forced By Asbestos Fiber, Zainab Mohsein

Engineering and Technology Journal

In this work prepared and study a polymer composite, where use polyester resin with asbestos fiber ratio (5%, 10% and 15%). First study effect of changing reinforcement percentage by asbestos fiber on coefficient thermal conductivity (k) of polymer composite. Result show decrease in the coefficient thermal conductivity (k) of composite materials with increase of weight percentage of asbestos fiber. Second, study effect of it above reinforcement ratio on the some of mechanical properties (Impact, tensile, fracture and hardness) for polymer composite. The result indicate increase value of mechanical properties with increase weight percentage of asbestos fiber. The impact strength was …

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Effect Of Impact Hot- Dry Weather Conditions On The Properties Of High Performance Lightweight Concrete, Hisham Ahmed, Wasan Khalil, Nada Jumaa Aug 2026

Effect Of Impact Hot- Dry Weather Conditions On The Properties Of High Performance Lightweight Concrete, Hisham Ahmed, Wasan Khalil, Nada Jumaa

Engineering and Technology Journal

The aim of this investigation is to produce high performance lightweight aggregate concrete in actual hot- dry weather conditions, and then study the combined effect of hot-dry weather conditions on the fresh properties of high performance lightweight aggregate concrete such as workability, initial and final setting time, measuring concrete temperature, and hardened concrete properties (compressive strength, splitting tensile strength and flexural strength, modulus of elasticity). The experimental program including the use of fixed mix proportions and was carried out in a typical Iraqi summer days (under actual conditions) of different times during the day, where the mean maximum temperature in …

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Study The Effect Of Traditional Iraqi Stabilizers (Cement And Lime) On Some Properties Of Iraqi Clay Soils, Husam Baqir, Aqeel Al-Adili, Ali Shareef Aug 2026

Study The Effect Of Traditional Iraqi Stabilizers (Cement And Lime) On Some Properties Of Iraqi Clay Soils, Husam Baqir, Aqeel Al-Adili, Ali Shareef

Engineering and Technology Journal

This study provides practical results in the use of the composite from sulfate resistance Portland cement (PC) and Quicklime (LQ) to improve and stabilize of soils in Al - Zaafaraniya site in Baghdad governorate and the Garma Ali site in Al Basra governorate, Iraq. PC and LQ were added in percentages of 2,4,6,8 and 10% and 2 and 4%, by dry weight, respectively. Laboratory tests to determine Atterberg,s limits, standard proctor test, USC test and UUU test (unconsolidation, undrained and unsaturated) were conducted. The results achieved a significant improvement in workability, unconfined compressive strength and shear strength. The results of …

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The Effects Of Sputtering Time On Cds Thin Film Solar Cell Deposited By Dc Plasma Sputtering Method, Azhar Sadkhan, Sabah Sabeh, Mohammed Khalaf Aug 2026

The Effects Of Sputtering Time On Cds Thin Film Solar Cell Deposited By Dc Plasma Sputtering Method, Azhar Sadkhan, Sabah Sabeh, Mohammed Khalaf

Engineering and Technology Journal

CdS thin films of different thickness have been prepared by dc sputtering technique on glass slides for a window layer of solar cells. The CdS target were sputtered in different sputtering times (1,1.5,2.5,3) hrs, working pressure (2×10-2) mbar and discharge voltage(2) kV.The structure of the nanoparticles films was investigated of CdS thin films by X-ray diffraction (XRD).The XRD patterns showed that the films were hexagonal (wurtzite) structure having strong preferential orientation along the (002) plane with particle size in the range of (41.04-41.46-41.88-42.53) nm, the peak at (002) preferred orientations of the films are shifted a little from left to …

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Measurement Of Radon Gas Concentrations And Hazard Effects In Underground Water Samples In Karbala Governorate Of Iraq, I. Al-Alawy, A. Hasan Aug 2026

Measurement Of Radon Gas Concentrations And Hazard Effects In Underground Water Samples In Karbala Governorate Of Iraq, I. Al-Alawy, A. Hasan

Engineering and Technology Journal

One of the most characterizations of social health is the existence availability of sources irrigation water. Since the main source of water, contamination is radon gas. Six regions in Karbala province in Iraq were chosen to evaluate Radon level in underground water-samples by using (SSNTD-CR-39) Detector. The current measurements showed that highest level was in Al-Horr region to be 4.152±2.2Bq/L, where lowest concentration was in Hay-Rumdan 2.165±1.6Bq/L. The maximum Annual-Effective Dose (AED) was found in Al-Horr to be 14.34±3.5μSv/y, whereas the minimal value indicated at Hay-Rumdan 8.66±3.1μSv/y. In general, it has been found that Radon-level concentration, in the studied groundwater-samples, …

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Determination Of Radon Concentrations In Soil Around Al-Tuwaitha Site Using Cr-39 Detector, Khalid Mahdi, Auday Subhi, Najlaa Sharif, Ghuzlan Ahmed Ahmed Aug 2026

Determination Of Radon Concentrations In Soil Around Al-Tuwaitha Site Using Cr-39 Detector, Khalid Mahdi, Auday Subhi, Najlaa Sharif, Ghuzlan Ahmed Ahmed

Engineering and Technology Journal

In this work radon concentration in 37 soil samples collected from 17 regions surround the (Al Tuwaitha) were measured by using solid-state nuclear track detector (SSNTD.s) CR-39 with natural exposure of one month, and by comparison with standard samples. The radon concentration in the soil samples was about (9.583 ± 0.36928.029 ± 0.631) Bq/m3 in locations one (Rotate Salman) and eight (An area agricultural near high-voltage towers) respectively, with rate of (20.939 ± 0.541) Bq/m3. The specific activity of radium (Ra) dissolved during generate radon were ranging between (9.857 – 3.37) Bq.kg-1, with rate of (7.393) Bq.kg-1, surface emission of …

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Effect Of Temperature And Concentration On The Optical Properties Of Pvc Solutions, Esam Tawfiq, Shams. Abdul Kareem Aug 2026

Effect Of Temperature And Concentration On The Optical Properties Of Pvc Solutions, Esam Tawfiq, Shams. Abdul Kareem

Engineering and Technology Journal

In this paper, effects of temperature and concentration on theabsorption spectra for Polyvinyl chloride solutions are studied at wavelengthsfrom 200 to 400 nm and with the range of temperature 20, 30, 40, 50, and 60degrees (Co). Electronic absorption spectra were examined over thewavelength range 200-400 nm by different concentrations (1x10-3, 8x10-4,6.5x10-4, 5x10-4 and 3x10-4)[M]. The UV spectra shifted slightly towardslarge wavelength with increasing the temperature. The values of the energygap of polyvinyl chloride are decreasing as concentration and temperatureincreased. The data shows that the refractive index of the polymer decreaseswith increasing the wavelength and temperature. The relationship between theabsorption coefficient …

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A Proposed Alzheimer's Disease Diagnosing System Based On Clustering And Segmentation Techniques, Sarah Mohammed Aug 2026

A Proposed Alzheimer's Disease Diagnosing System Based On Clustering And Segmentation Techniques, Sarah Mohammed

Engineering and Technology Journal

Alzheimer's-disease (AD) is one of the prevalent diseases that afflict theelderly. The medical field defines Alzheimer is the destruction of brain cells sothat the person loses knowledge and perception, afflict both sexes and is calleddementia. The medical field often suffers from accurate diagnosis and detection ofthe disease in the early stages. This paper presents a diagnostic approach ofAlzheimer based on K-mean clustering algorithm with Markov random fieldsegmentation on Magnetic Reasoning Images (MRI) to build software able to helpthe medical staff identifying and diagnosis the disease. The experimental resultshows that 91% accuracy is achieved, which demonstrate the system's reliabilityin the medical …

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Evaluation Of Purified Urease Activity From Proteus Mirabilis Using Iron Oxide Nanoparticles And Measurement Of Urea Concentration In Blood, Hadeel Dawud, Entesar Ali Aug 2026

Evaluation Of Purified Urease Activity From Proteus Mirabilis Using Iron Oxide Nanoparticles And Measurement Of Urea Concentration In Blood, Hadeel Dawud, Entesar Ali

Engineering and Technology Journal

The activity of urease purified from Proteus mirabilis bacteria wasestimated using gamma iron oxide nanoparticles (γ-Fe2O3) which were obtained asstandard in size (20- 40)nm, purity 99%. The enzyme activity was estimated byincubating the pure enzyme with various concentrations of nanoparticles rangedbetween (1- 6) μg/ml. The results indicates a decrease in enzymatic activity withincreasing of nanoparticles concentration. After that, the concentration of bloodurea was measured using urease obtained from a standard kit, urease purified fromProteus mirabilis and the urease- gamma iron nanoparticles solution. Thecomparison was then made among the results of urea concentrations by statisticalanalysis using T-test. The results showed that …

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