Preferred Language
Sort By
Filters
Filter
Publication
Publication Date
Indexed In
Iraqi Journal of Science College of Science - University of Baghdad
Journal Website
ISSN: 0067-2904
eISSN: 2312-1637
Statistics
No. of publications: 5383
No. of views: 2738161
No. of Scopus citations: 10332
No. of Crossref citations: 2604
SNIP 2024: 0.947
SJR 2024: 0.341
CiteScore 2024: 2.1
CiteScore 2025: 2.4
Publication Date
Fri Nov 15 2024
Journal Name
Iraqi Journal Of Science
MID-CRETACEOUS RADIOLARINS FROM THE BALAMBO FORMATION NE-IRAQ
...Show More Authors

The late Albian-Early Turonian Radiolarians of the Balambo Formation, which were recovered from well Jambur-18 (NE of Iraq) are characterized by their abundance and diversity. They show certain similarities to those from the Tethys and North Atlantic indicating the ongoing opening between the two basins.
Microfacies analysis for the Balambo rocks indicates a basinal depositional environment, where radiolarians thrived. The differences in depositional textures of the carbonate facies with presence of mudstone and shale units indicate relative changes in depth within the same environment. This can interpreted to the relative changes of sea-level, which exhibit transgressive and regressive cycles. Radiolarian-rich intervals correlate w

... Show More
View Publication Preview PDF
Publication Date
Sat Jun 03 2023
Journal Name
Iraqi Journal Of Science
Benthic Foraminiferal biostratigraphy of the Euphrates Formation (Early Lower Miocene-Middle Miocene) in selected sections, Western Iraq
...Show More Authors

Studies of three surface sections of the Euphrates Formation in its type locality Western Iraq, yielded a rich benthic foraminifera. Tabulation of the results showed more or less similar content which are previously studied except for the presence for the first time of Triloculina trigonula Lamark, Triloculina tricarinata D'orbigny in the lower parts and Spirolina cf. cylindracea Lamark in the upper parts. In addition two Biozone established in the studies sections, the lower Ammonia beccarii zone and upper Ammonia beccarii-Borelis melo curdica zone

View Publication Preview PDF
Publication Date
Fri Nov 15 2024
Journal Name
Iraqi Journal Of Science
PCA TRANSFORM FOR IMAGE ENHANCEMENT, COMPRESSION, AND CHANGE DETECTION
...Show More Authors

The Principal-Components-Analysis (PCA) of KL-transform has been utilized as multi operators, (i.e. enhancement, compressor, and temporal change detector). Two images pair (Al-Jaderiya-Baghdad-Iraq) of 3-bands Landsat ETM+ (14.25 spatial-resolution) and Panchromatic Quick-Bird (0.6 meter) images are adopted to perform the PC analysis. Since most of the image band's information are presented in the first PCs, therefore image classification and change detection procedures are performed with little consuming time. The linear “PCA” transformation can be used to translate and rotate data into a new coordinate system that maximizes the variance of the data. It can also be implemented for enhancing the information content.

View Publication Preview PDF
Publication Date
Fri Nov 15 2024
Journal Name
Iraqi Journal Of Science
ON THE EXISTENCE OF THE SOLUTION TO THE HAMILTON- JACOBI EQUATION BY USING THE DUAL DYNAMICAL PROGRAMMING
...Show More Authors

Properties of the value function and dual value function for an optimal control problems of Lagrange and Bolza are described. A main theorem is proved, this theorem deals with the existence of a maximum solution to the Hamilton-Jacobi equation for the Lagrange problem, with satisfies the Lipschitz condition by using the dual dynamic programming method. Finally gives an example which illustrates the value of the main theorem.

View Publication Preview PDF
Publication Date
Fri Nov 15 2024
Journal Name
Iraqi Journal Of Science
SHORT PULSE LASER GENERATION USING PHASE SHIFTED FIBER BRAGG GRATING
...Show More Authors

Short pulse laser generation using phase shifted fiber Bragg grating (FBG) is a theoretical demonstration and investigation in this paper. The specified refractive index can be photo-written in an optical fiber using UV laser with a standard phas mask scanning techniques. Two Bragg gratings were specially designed to spectrally filtering the edges of the input puise. When the FBGs are fabricated in the core of the optical fiber, most of the power travels in the core with a smock part corresponding to the evanescent wave that travels outside near the core in the cladding. The results show the desired full width at half maximum (FWHM) of the pulse propagation in the core of the optical fiber is 5,025 nm, which corresponds to frequency FWHM

... Show More
View Publication Preview PDF
Publication Date
Fri Nov 15 2024
Journal Name
Iraqi Journal Of Science
INHIBITORY EFFECT OF Cinnamomum zeylanicum OIL EXTRACT ON Aspergillus flavus GROWTH AND AFLATOXIN B1 PRODUCTION
...Show More Authors

The chemical analysis for active groups in oil extract of Cinnamomum zeylanicum was indicated the presence of Glycosides, Alkaloids, Resins, Saponins, Coumarins, Flavonoids, Terpens and Steroids. But the water extract contains Glycosides, Tanins, Resins, Saponins,and phenpls.The oil extract appeared high inhibitory effect on growth and aflatoxin B1 production for Aspergillus flavus locally isolate. The detection of aflatoxin B1 has been done using TLC and HPLC techniques.
The total inhibitory effect of oil extract on the growth of A. flavus and aflatoxin B1 production was at the concentrations up to 350ppm using YES medium, while inhibited the growth of the same isolate on PDA medium at the levels up to 650ppm.

View Publication Preview PDF
Publication Date
Fri Nov 15 2024
Journal Name
Iraqi Journal Of Science
COMBINATION EFFECT OF NITROGEN LASER ANDCHLOROHEXIDINE ON THE VIABILITY OF Pseudomonas aeruginosa
...Show More Authors

To evaluate the Combination effect of Nitrogen laser and chlorohexidine on the viability of Pseudomonas aeruginosa that isolated from burns, the samples of bacteria were irradiated with 337.1 nm Nitrogen laser using 5 and 10 pulses/second repetition rates , at 1 , 5, 10 ,15, 25 minutes exposure times . The irradiation was done with and without treatment with chlorohexidine respectively. The results showed that there is a noticeable effect of Laser on the viability of bacteria with the presence of chlorohexidine. The viability of bacteria decreased with increasing the exposure time and pulse repetition rate.

View Publication Preview PDF
Publication Date
Fri Dec 30 2022
Journal Name
Iraqi Journal Of Science
Distribution and Enrichments of Abundant and Trace Elements in Al-Khassa Sub Basin Soil, Kirkuk, Northeastern of Iraq
...Show More Authors

     This study focused on the soil  of the Al-Khassa Sub Basin,  thirty-four soil samples were collected from different areas of land use and differences in human activity.

 Physicochemical properties of the soil were examined Hydrogen Potential (pH), Organic Matter (O.M), Loss Of  Ignition (L.O.I), Total Organic Carbon (TOC), Cation Exchange Capacity (CEC) and Total Hydrocarbon (THC).

  Hydrogen Potential (pH)  showed that the soil is alkaline above seven with  a mean 7.98.

Organic Matter (O.M) of the study area with a mean  1.28 % and high value found in Agricultural areas.Cation Exchange Capacity (CEC)  with a mean  42.64  (cmol/kg) that is proportional to the granular size of the soil that silty c

... Show More
View Publication Preview PDF
Crossref (2)
Crossref
Publication Date
Sun Apr 29 2018
Journal Name
Iraqi Journal Of Science
Modified Artificial immune system as Feature Selection
...Show More Authors

Feature selection algorithms play a big role in machine learning applications. There are several feature selection strategies based on metaheuristic algorithms. In this paper a feature selection strategy based on Modified Artificial Immune System (MAIS) has been proposed. The proposed algorithm exploits the advantages of Artificial Immune System AIS to increase the performance and randomization of features. The experimental results based on NSL-KDD dataset, have showed increasing in performance of accuracy compared with other feature selection algorithms (best first search, correlation and information gain).

View Publication Preview PDF
Publication Date
Wed Mar 30 2022
Journal Name
Iraqi Journal Of Science
s-Compressible and s-Prime Modules
...Show More Authors

   Let R be a ring with identity and Ą a left R-module. In this article, we introduce new generalizations of compressible and prime modules, namely s-compressible module and s-prime module. An R-module A is s-compressible if for any nonzero submodule B of A there exists a small f in HomR(A, B). An R-module A is s-prime if for any submodule B of A, annR (B) A is small in A. These concepts and related concepts are studied in as well as  many results consist properties and characterizations are obtained.  

View Publication Preview PDF
Scopus Crossref
Publication Date
Wed Mar 30 2022
Journal Name
Iraqi Journal Of Science
Modeling Social Networks using Data Mining Approaches-Review
...Show More Authors

     Getting knowledge from raw data has delivered beneficial information in several domains. The prevalent utilizing of social media produced extraordinary quantities of social information. Simply, social media delivers an available podium for employers for sharing information. Data Mining has ability to present applicable designs that can be useful for employers, commercial, and customers. Data of social media are strident, massive, formless, and dynamic in the natural case, so modern encounters grow. Investigation methods of data mining utilized via social networks is the purpose of the study, accepting investigation plans on the basis of criteria, and by selecting a number of papers to serve as the foundation for this arti

... Show More
View Publication Preview PDF
Scopus (6)
Crossref (1)
Scopus Crossref
Publication Date
Tue Nov 30 2021
Journal Name
Iraqi Journal Of Science
Hydrogeological Conditions of Qazaniyah Sub-basin in Diyala / Iraq
...Show More Authors

The study area is located in the eastern part of the Diyala Governorate close to the Iraqi-Iranian border. This study was set to investigate the hydrogeological calculations of northeast of Qazaniyah wells where the groundwater moves in directions of from the northeastern parts towards the southwestern par, that is, the same direction of the topography and the same direction of the tendency of the layers t. The study‘s region is characterized by visible geological layers or those that can be penetrated to a reasonable depth by wells which are sedimentary rocks deposited in continental or semi-continental conditions in the bays. From the study of the hydraulic properties of the two hydrogeological and exemplary systems, the values of tr

... Show More
View Publication Preview PDF
Scopus Crossref
Publication Date
Thu Jan 14 2021
Journal Name
Iraqi Journal Of Science
Bibliographic Analysis on the Financing of Education Reform in Morocco
...Show More Authors

The National Charter for Education and Training in 1999 defined the principles, pillars and main objectives of the Moroccan education system, building on the various reforms of the early twenty-first century and the attempt to breathe new life into this reference document. Through partial and incremental changes, a total inability to tackle the root causes of the Moroccan education system and training has been revealed. This research has been conducted to answer the questions of education in the foreground national concerns and priorities in the discourse of the main political actors in Morocco that have been raised and remain interesting and can be expressed in the following question: Morocco still fails to meet the challenge of educati

... Show More
View Publication Preview PDF
Crossref
Publication Date
Thu Jan 14 2021
Journal Name
Iraqi Journal Of Science
Efficiently-managed Cloudly-Secured Mobile User Data Sharing Code Implementation
...Show More Authors

Increasing Mobile Device on Cloud Technology will dominate the various industries. Cloud has different data storage and data protecting techniques that based on Data User (DU) and industry’s needs. In this paper, an efficient way of managing user data sharing via Mobile Agent (MA) also called Mobile Proxy (MP) is proposed. The role of Mobile Agent Authorize User to collect the data from Cloud like Proxy and supply data to another Client due to this missing of cloud data is not possible. Instead of access data for all clients, the proxy hold required data and share the customer because of this network reliability, Network Bandwidth, User Congestion, Data Security. Also, this proposed scheme have more functionality like Cloud Authen

... Show More
View Publication Preview PDF
Scopus Crossref
Publication Date
Sat Jan 30 2021
Journal Name
Iraqi Journal Of Science
Solving Systems of Non-Linear Volterra Integral Equations by Combined Sumudu Transform-Adomian Decomposition Method
...Show More Authors

     This paper is used for solving component Volterra nonlinear systems by means of the combined Sumudu transform with Adomian decomposition process. We equate the numerical results with the exact solutions to demonstrate the high accuracy of the solution results. The results show that the approach is very straightforward and effective.

View Publication Preview PDF
Scopus (6)
Crossref (1)
Scopus Crossref
Publication Date
Wed Dec 30 2020
Journal Name
Iraqi Journal Of Science
Gastropods of Aptian- Cenomanian of Qamchuqa Formation from Northern Iraq
...Show More Authors

Gastropod species belonging to Qamchuqa Formation (Aptian-Cenomanian) in the North of Iraq are studied. These species  are Harpagodes nodosus (J.de C. Sowerby,1823),  Ampullina sp.1 (Hannaa and Furisch, 2011), Ampullina sp.2 (Hannaa and Furisch, 2011), Tylostoma pallaryi (Peron and Fourtau, 1904), Calliomphalus orientalis (Douville,1916), and Pyrgulifera (Meek, 1871). They are recorded in the Upper Cretaceous succession of Northern Iraq for the first time. Most of these species are internal moulds and not abundant at any stratigraphic level but irregularly scattered in the formation.

View Publication Preview PDF
Scopus (1)
Scopus Crossref
Publication Date
Sat Feb 27 2021
Journal Name
Iraqi Journal Of Science
Magnetic Liquid Switching Using Rodlike Ferronematic 6CHBT Liquid Crystal Mixture Depending on the Diffraction Patterns
...Show More Authors

Diffraction patterns formed by a ferronematic sample, which contains 4-(trans-4-n-hexylcyclohexyl)-isothiocyanatobenzene (6CHBT) liquid crystal doped with Fe3O4 rodlike magnetic nanoparticles, was studied. The studied mixture can be applicated as a liquid magnetic switch. The diffraction patterns were observed from the micro-lines scribed on the polymer layer, which was contained by the liquid crystal mixture cell, with dimensions of 4 nm for depth and 0.32 µm for width and 5000 line per 1 mm2 in the case of absence and presence of the DC magnetic field. From the experimental results, it was observed that the application of the magnetic field caused more than 17% expansion in the diffraction patterns a

... Show More
View Publication Preview PDF
Scopus (4)
Crossref (2)
Scopus Crossref
Publication Date
Fri Aug 28 2020
Journal Name
Iraqi Journal Of Science
Effects of Hematocrit on Blood Flow Through A Stenosed Human Carotid Artery
...Show More Authors

In this paper, the effects of hematocrit of red blood cells on blood flow through a stenosed human carotid artery was considered by taking blood as a Newtonian fluid. The governing equations on blood flow were derived. The mathematical content involved in the equations are the variables of interest such as number of stenosis , percentage of hematocrit  of red blood cells in the blood, flow rate, wall shear stress, and viscosity of the blood. Guided by medical data collected on the constraint of blood flow in stenosed human carotid arteries, the governing equations were used to check the effects of pressure gradient, wall shear stress, velocity, and volumetric flow rate of blood in the human carotid arteries. Also, the one-dimensiona

... Show More
View Publication Preview PDF
Scopus (1)
Crossref (1)
Scopus Crossref
Publication Date
Sat Feb 27 2021
Journal Name
Iraqi Journal Of Science
Some Results on mX-N-connected Space
...Show More Authors

In this essay, we utilize m - space to specify mX-N-connected, mX-N-hyper connected and mX-N-locally connected spaces and some functions by exploiting the intelligible mX-N-open set. Some instances and outcomes have been granted to boost our tasks.

View Publication Preview PDF
Scopus (3)
Scopus Crossref
Publication Date
Sat Dec 30 2023
Journal Name
Iraqi Journal Of Science
Screening of bread wheat cultivars (Triticum aestivum L.) to water deficit stress under field conditions
...Show More Authors

Field trial was conducted during the growing season of 2011-2012 at the Research
Field, Department of Biology, College of Science, Baghdad University to test the
performance of wheat cv Rabyaa, Latifiya, Al-Iraq, Tummose 2, Abu-Graib 3, IPA
99 and Sham 6 grown under different soil water deficit stresses. Several agronomic
and physiological traits and yield and yield components of the test cultivars were
determined. The experiment was conducted in split plot design with five replications
for each treatment. The cultivars were kept in the sub plot while water stress
treatment was assigned as main plot. Water stress was applied by irrigated the plots
to the soil field capacity (FC) then withheld next irrigation until

... Show More
View Publication Preview PDF
Publication Date
Fri Dec 30 2022
Journal Name
Iraqi Journal Of Science
Fully Prime Semimodule, Fully Essential Semimodule and Semi-Complement Subsemimodules
...Show More Authors

      The concept of semi-essential semimodule has been studied by many researchers.

     In this paper, we will develop these results by setting appropriate conditions, and defining new properties, relating to our concept, for example (fully prime semimodule, fully essential semimodule and semi-complement subsemimodule) such that: if for each subsemimodule of -semimodule  is prime, then  is fully prime. If every semi-essential subsemimodule of -semimodule  is essential then  is fully essential. Finally, a prime subsemimodule  of  is called semi-relative intersection complement (briefly, semi-complement) of subsemimodule  in , if , and whenever  with  is a prime subsemimodule in , , then .  Furthermore, some res

... Show More
View Publication Preview PDF
Scopus (1)
Scopus Crossref
Publication Date
Fri Dec 30 2022
Journal Name
Iraqi Journal Of Science
Regeneration of Engine Used Oils by Solvent Extraction
...Show More Authors

    The regeneration of used oil is one of the essential processes for economical, industrial and environmental targets. Used oil is rich of hydrocarbons, metals (such as: aluminium, chromium, copper, iron, lead, manganese, nickel, silicon and tin), gasoline, water and antifreeze. Due to the high increasing rate of the number of cars, there is a huge quantity of used oil. In this study, different brands of used oil were involved in extraction and adsorption processes as a regeneration process of these used oils. The optimum conditions were determined such as solvents composition, solvent: oil ratio, KOH concentration and temperature. The solvent mixture of 40% of petroleum ether, 11% of 1-butanol and 4% of 2-propanol has shown the bes

... Show More
View Publication Preview PDF
Scopus (3)
Crossref (1)
Scopus Crossref
Publication Date
Mon May 15 2023
Journal Name
Iraqi Journal Of Science
Isolation and identification of fungi from two hospitals in Baghdad city and effect of disinfectants on some fungi
...Show More Authors

Swabs from two hospitals at Baghdad city were collected from the period 28-October-2013 to 31-March-2014, to found out the prevalence and distribution of fungi. These isolates were collected from hospitals' environment and most of the items used for hospital work in order to detect the nosocomial pathogens persistent. All fungal isolates were identified depending on the morphological and microscopic examinations as well as biochemical tests. Out of 220 environmental samples, 146 fungal isolates was obtained, Aspergillus flavus was more frequency and occurrence 23.29% and 15.45% respectively, followed Aspergillus niger was 15.57% and 10.45% then Penecillium spp. was 13.27% and 8.64%. In Al -Yarmouk Teaching Hospital more places contaminat

... Show More
View Publication Preview PDF
Publication Date
Thu Jun 30 2022
Journal Name
Iraqi Journal Of Science
Determining the Best Rainwater Harvesting System in Al-Muthanna Governorate, Iraq
...Show More Authors

     Rainwater harvesting is one of the available solutions to overcome water scarcity in arid and semi-arid regions with highly variable rainfall and unexpected periods of drought or floods. This study aims to identify the best rainwater harvesting system in Al-Muthanna governorate using Remote Sensing (RS) and Geographic Information System (GIS) techniques. Landsat 8 images were used to produce the land use map which shows five different classes: water (0.2%), bare soil (82.11%), built-up (15.71%), forest (0.27%), and farmland and grass (1.71%). The results revealed that the rainwater harvesting system can be applied only in the north and north-eastern parts of the study area which consists of residential and agricultural areas and

... Show More
View Publication Preview PDF
Scopus (4)
Crossref (1)
Scopus Crossref
Publication Date
Fri Sep 30 2022
Journal Name
Iraqi Journal Of Science
A Class of Harmonic Multivalent Functions for Higher Derivatives Associated with General Linear Operator
...Show More Authors

    The main goal of this paper is to introduce the higher derivatives multivalent harmonic function class, which is defined by the general linear operator. As a result, geometric properties such as coefficient estimation, convex combination, extreme point, distortion theorem and convolution property are obtained. Finally, we show that this class is invariant under the Bernandi-Libera-Livingston integral for harmonic functions.

View Publication Preview PDF
Scopus Crossref
Publication Date
Fri Apr 26 2024
Journal Name
Iraqi Journal Of Science
Three Dimensional Information Extraction of Buildings Using ShadowFrom A Single Image
...Show More Authors

The three dimensional information of buildings is an important issue in urban
monitoring, planning, management and various economic activities, and as a result
of the tremendous development in the devices and remote sensing sensors, there is a
need to obtain information about geographical locations with less cost, therefore the
goal of this research is to extract the three dimensional information of buildings
using shadow analysis appears in the 2D image and solving for the slope of view for
this shadow without the need for additional data (another overlapping image or
digital elevation model).

View Publication Preview PDF
Publication Date
Tue Feb 13 2024
Journal Name
Iraqi Journal Of Science
Fuzzy Linear Discriminant Analysis Clustering With Its Application
...Show More Authors

Many fuzzy clustering are based on within-cluster scatter with a compactness measure , but in this paper explaining new fuzzy clustering method which depend on within-cluster scatter with a compactness measure and between-cluster scatter with a separation measure called the fuzzy compactness and separation (FCS). The fuzzy linear discriminant analysis (FLDA) based on within-cluster scatter matrix and between-cluster scatter matrix . Then two fuzzy scattering matrices in the objective function assure the compactness between data elements and cluster centers .To test the optimal number of clusters using validation clustering method is discuss .After that an illustrate example are applied.

View Publication Preview PDF
Publication Date
Mon Mar 04 2024
Journal Name
Iraqi Journal Of Science
PRODUCING HIGH RESOLUTION SPECTRAL BANDS FROM LOW RESOLUTION MULTI-BANDS IMAGES, USING PRINCIPAL COMPONENT ANALYSIS “PCA” TECHNIQUE
...Show More Authors

Image data fusion is the process of setting together information gathered by
different heterogeneous sensors, mounted on different platforms. This research
presents an effective multi-resolution image data fusion methodology, which is
based on utilizing the Principal Component Analysis “PCA”. The first principal
component “PCA1” involves much of the variability in the spectral data; while the
reminder PCAs contain the remaining variability in a descend order. The low
resolution multispectral bands are, firstly, resized (i.e. enlarged) into the high
resolution “panchromatic” image size, then transformed into several PCAs. As first
step the panchromatic image is normalized to have the same number of gray

... Show More
View Publication Preview PDF
Publication Date
Fri Jan 26 2024
Journal Name
Iraqi Journal Of Science
Synthesis of new 9H-Carbazole derivatives
...Show More Authors

The aim of the present work is to synthesis of new 9-ethyl carbazole derivatives .The 3-acetyl-9-ethyl carbazole was achieved by the reaction of compound (1) with acetyl chloride in the presence of aluminum chloride to give compound (2). Reaction of compound (2) with a ppropriate aromatic aldehyde yielded 3-(3-Phenyl -1-Oxy propen-1-yl)9-Ethyl carbazole(3a-3h).The reaction of (3) with hydrazine hydrate gave 3-(5-aryl-4, 5-Dihydro-3-pyrozolyl)9-Ethyl carbazole(4a-4h). Also compound (3) reacted with phenyl hydrazine gave 3-(1-phenyl-5-aryl-4-pyrozoline-3-yl)9-Ethyl carbazole (5a-5h). The reaction of compound (3) with guanidine carbonate in presence of NaOH (40%) gave the 3-(2-amino-6-aryl-4-pyrimidinyl)9-Ethyl carbazole (6a-6h). The prepar

... Show More
View Publication Preview PDF
Publication Date
Thu Nov 29 2018
Journal Name
Iraqi Journal Of Science
Calculation the Venus orbital properties and the variation of its position
...Show More Authors

Venus orbit around the Sun is an ellipse inside the Earth orbit. The elements of Venus orbit and its position are affected by the gravitational force of near planets therefore the elements were determined with Julian date through ten years 2011-2020. The orbital elements used to calculate Venus distance from the Sun, the heliocentric and geocentric equatorial coordinates. From the results the orbit of Venus and its position were described and show the gravity effect of near planets on it. The results get the values and their variation through ten years for the eccentricity, semi-major axis, inclination, longitude of ascending node, argument of perihelion, mean anomaly and distance from the Sun. The variation is very small through 10 year

... Show More
View Publication Preview PDF