The objective of this work was to study the influence of weight percentage
ratios of (Unsaturated Polyester/Poly vinyl chloride) blends and E-glass
fibre content on the diffusion coefficients of the blends from the
relationship between water weight gain Mt and diffusivity for water
immersed samples. Unreinforced and reinforced ( by one or two layers of
chopped E-glass fibers) samples were prepared by hand lay up method
with the ratios (95%UPE+5%PVC, 90%UPE+10%PVC and
%85UPE+15%PVC), the prepared samples were immersed for 60 days in
water to get the absorption curves. The results of laboratory examinations
show the absorption curves of water gain Mt against the square root of the
immersion timet are gradua
Proliferation of network systems and growing usage of Internet make network
security issue to be more important. Intrusion detection is an important factor in keeping
network secure. The main aim of intrusion detection is to classify behavior of a system
into normal and intrusive behaviors. However, the normal and the attack behaviors in
networks are hard to predict as the boundaries between them cannot be well distinct.
This paper presents an algorithm for intrusion detection that combines both fuzzy C
Means (FCM) and FCM for symbolic features algorithms in one. Experimental results
on the Knowledge Discovery and Data Mining Cup 1999 (KDD cup 99) intrusion
detection dataset show that the average detection rate of
In this paper we study a spectral characterization of the Taylor-Browder spectrum for
a double commuting n − tuple of totally θ −operators, and study relation between the
Taylor- Weyl spectrum, Taylar- Browder spectrum, joint-Weyl spectrum, and joint-
Browder spectrum for commuting n − tuple of totally θ −operators. Also we study a
spectral characterization of the Taylor-Browder spectrum for a doubly commuting
n − tuple of posinormal operators.
This study was conducted to evaluate the effect of discharge of water purification plants ,on the purity of Tigris River water in Baghdad city. The two studied plants were involved in the study : Sharq –Dijla and Al-Karama water purification plants. The study was attempted to focus on probable pollutants. Chemical, physical tests were accomplished on water samples collected from four sites with fact of three replicates for each sample of each site of the river and the plant : before, after, inside the plants and at the pipe. This study started from October 2012 to September 2013. In case of heavy metals Results showed that the highest level of aluminum was 1.08 ppm during (December-January) at Sharq-Dijla plants, while the lowest level
... Show MoreSix Bifidobacterium isolates, isolated from breast – feed infant faces on reduced de Man Rogosa and Sharp medium (MRS - C). Isolates identified to species level on the basis of : microscopical properties, biochemical tests, fructose-6-phosphate phosphoketolase enzyme(F6PPK) activity and carbohydrates fermentation profile. Results showed that B. adolescentis was the predominant species (B4,B5and B6),the other species were B. breve(B3),B. longum (B1), B. dentium(B2).
Strains were screened for their inhibitory effects against pathogenic bacteria shiga toxin producing E.coli(STEC)O157:H7 using agar – well diffusion method.B3 and B6 showed clear inhibitory actions toward STEC,22 mm and 15 mm diameter of inhibition zone srespectively. W
Weibull distribution is one of the most widely used distributions of
lifetime in reliability engineering. It has the ability to provide reasonably
accurate failure analysis and failure forecasts especially with extremely
small samples. Bayesian approach has received a lot of attention along
with the traditional methods of estimation such as maximum likelihood
and moment estimation methods. The object of the present paper is to
compare some Bayes' estimators for the scale Parameter of the Weibull
reliability function using different loss functions, based on Jeffrey prior
information for estimating the scale parameter of Weibull distribution.
The comparison was based on a Monte Carlo study. Through the
simulat
The reservoir characterization of Lower Qamchuqa (Shu'aiba) Formation (Aptian) is studied at the well BH-86 of Bai- Hassan Oilfield in Kirkuk area, Northern Iraq. The lithological study (of 91 thin sections) revealed that the formation consists of shaly limestone, a thin bed of marl within the limestone, and dolomitic limestone. Four petrographic microfacies were noticed Lime mudstone microfacies, Dolomudstone microfacies, Lime wackestone microfacies, subdivided into benthonic foraminifera lime wackestone submicrofacies and bioclasts lime wackestone submicrofacies, and the last microfacies is the Lime packstone microfacies, which is subdivided into pelloidal lime packstone submicrofacies and Orbitolina lime packstone microfaci
... Show MoreThe use of varied quantities of orphenadrine to protect stainless steel against corrosion in an acidic media at 298 K has been investigated. It was observed that when the drug's concentration is increased, the drug's speed of corrosion lowers. The data of inhibition efficiency (percent IE) in the presence of orphenadrine drug and corrosion resistance showed that the highest protection efficiency was achieved with the best concentration, and that the corrosion rate decreased with increasing orphenadrine drug concentrations, making it a good inhibitor for stainless steel in an acidic environment. The theoretical investigation proved the efficiency of the drug for inhibition, as the drug is absorbed on the surface of the stainless st
... Show MoreOne of the most common means of smoking tobacco is Water Pipe (WP); it’s called (Arghile or Narghile) in the Middle East countries. It represents one of the causes of indoor air pollution. During the last few year’s this method of smoking spread among the young Iraqies. Some of the previous studies confirmed that WP smoking has a negative health effects more than those of Cigarettes smoking.
In this research study , mice were exposed to water pipe smoke using a special inhalation glass chamber (whole body exposure).This smoke consist of a respirable particulate matter in which are (less than 2.5μm ) in diameter . Mice exposed daily to 100 puffs of WP smoke on the bases of (1hr exposure per day), the exposure experiment continue
Amygdalin was extracted from apricot kernels, the chemical characteristics of amygdalin are: white, crystalline, and inodorous powder, slightly soluble in cold water, very soluble in hot water, alcohol and acetone, and insoluble in ether. It has a pH of 7 in saturated aqueous solution. Amygdalin purity in the extract was estimated to give 99.5%. Amygdalin was identified in the extract by FT-IR.
The sensitivity of some species of pathogenic bacteria included Pseudomonas aeruginosa, Serratia marcescens, Staphylococcus aureus, and Streptococcus pyogenes to different concentration of amygdalin (2%, 4%, 6%, 8%, and 10%) was tested to find out the role of amygdalin as antibacterial agent.
The experimental results of bacterial sensiti
A non-zero module M is called hollow, if every proper submodule of M is small.
In this work we introduce a generalization of this type of modules; we call it prime
hollow modules. Some main properties of this kind of modules are investigated and
the relation between these modules with hollow modules and some other modules
are studied, such as semihollow, amply supplemented and lifting modules.
Agriculture is one of the major sources of livelihood for the Iraqi people as one-third of Iraq population resides in rural areas and depends upon agriculture for their livelihoods. This study aims to estimate the impact of temperature variability on crops productivity across the agro-climatic zones in Salah Al-Din governorate using climate satellite-based data for the period 2000 to 2018. The average annual air temperature based on satellite data was downloaded from the GLDAS Model NOAH025_M v2.1, and interpolates using Kriging interpolation/spherical model. Thirteen strategic crops were selected which is Courgette, garlic, Onion, Sweet Pepper, Watermelon, Melon, Cucumber, Tomato, Potato, Eggplant, Wheat, Barley
... Show MoreThe purpose of this study is to calculate the effect of the elastic wall of a hollow channel of Jeffrey's fluid by peristaltic flow through two concentric cylinders. The inside tube is cylindrical and the outside is a regular elastic wall in the shape of a sine wave. Using the cylindrical coordinates and assuming a very short wavelength relative to the width of the channel to its length and using governing equations for Jeffrey’s fluid in Navier-Stokes equations, the results of the problem are obtained. Through the Mathematica program these results are analysed.
Human beings are greatly inspired by nature. Nature has the ability to solve very complex problems in its own distinctive way. The problems around us are becoming more and more complex in the real time and at the same instance our mother nature is guiding us to solve these natural problems. Nature gives some of the logical and effective ways to find solutions to these problems. Nature acts as an optimized source for solving the complex problems. Decomposition is a basic strategy in traditional multi-objective optimization. However, it has not yet been widely used in multi-objective evolutionary optimization.
Although computational strategies for taking care of Multi-objective Optimization Problems (MOPs) h
... Show MoreThin films of pure yttrium oxide (Y2O3) and doped with cerium oxide (CeO2) were prepared by the chemical spray pyrolysis(CSP)method. The structural, optical and electrical properties of the prepared films were investigated. The analysis of X-ray diffraction (XRD) thin films revealed that the undoped and doped Y2O3 were amorphous with a broad hump around 27o and narrow humps around 48o and 62o for all samples. Except for the Y2O3:6wt.%CeO2 thin film, all had signal preferential orientation along the (100) plane at 2θ=12.71o which belongs to CeO2, Field emission scanning electron mic
... Show MoreThis paper discusses Ree–Eyring fluid’s peristaltic transport in a rotating frame and examines the impacts of Magnetohydrodynamics (MHD). The results deal with systematically (analytically) applying each of the governing equations of Ree–Eyring fluid, the axial and secondary velocities, flow rate due to auxiliary stream, and bolus. The effects of some distinctive variables, such as Hartman number, heat source/sink, and amplitude ratio, are taken under consideration and illustrated through graphs.
The study includes 23 isolates of Pseudomonas aeruginosa isolated from wound
infections .The Minimum Inhibitory Concentration (MIC) to each of Levofloxacin
and Ceftazidime for these isolates were determined. The results showed 11(47.8%)
isolates sensitive to both antibiotics, 5(21.7%) isolates resistant to each one of the
antibiotics and 7(30.5%) isolates appeared resistance to one of them and sensitive to
the other. Mutant Prevention Concentration (MPC) to both Levofloxacin and
Ceftazidime alone and in combination were determined to the 5 sensitive and 5
resistant isolates to both antibiotics. Mutant Selection Window (MSW) was
calculated according to the data of MPC and MIC to both levofloxacin an
β -galactosidase enzyme was extracted from the new born sheep brain by nine
solutions, It was found that the0.2 M sodium acetate and 0.2M NaCl give a highest
specific activity of crude enzyme. This enzyme was concentrated by four methods,
includes: concentration by ammonium sulfate (20-60%); old acetone; ethanol (30%-
60%) and by ultra filtration. It was found that the cold acetone was the better. The
purification folds were about 124.78 times and yield about 77.39%. The molecular
weight of this enzyme about 185.942 Kilo Dalton.
Effects of Trebon (Etofenprox) and its residues in Gambusia affinis were investigated .The fish were exposed to various doses of the insecticide during aperiod of 96 hours. The LC50 was 0.027 mg / l . Residues of Trebon in tissues of fishes weighting 0.35 g exposed to high concentration of the insecticide in water which killed 100% of the fish was 0.02696 mg/g fish as analysed by the UV-visible spectrophotometer.
An idea of a colored glaze is presented in this study to hide and dispose all the obstacles of using solar systems as facades integrated with buildings. This aim is achieved by designing multilayer optical interference filters by using Mat lab program . Appropriate dielectric materials, namely NdF3 of high refractive index (nH =1.6) and ThF4 of low refractive index (nL =1.5143) were employed. Quarter wave thicknesses of high (H) and low (L) refractive index were deposited on a microscopic slide substrate with n=1.513 and 550 nm design wavelength (l°). Two optical models were designed, which are Air//HL//glass and Air//LH//glass, for even numbers of layers (2-32 lay
... Show MoreForty five volunteers aged between 25 and 65 years ,were exposed for at least 10 years to electromagnetic fields (EMFs) induced by transmission power lines in their residential area and 15 male of similar age unexposed, away from the transmission power lines as a control group were used in this study. The electromagnetic fields (with range of 50 to 60 Hertz) were beside the homes of the volunteers. This study carried out in three different region of Baghdad and included Al –Bladyat, Hay Al-Adel and Al-Dorra region, The groups of this study were divided into three sub- groups according to the distance away from the towers of transmission power lines, (1) range: from 1 to 25 meter (2) from 25 to 50 meter (3) from 50 to 75 meter. The resu
... Show MoreCopper tin sulfide (CTS) thin films were deposited on glass substrates using the spray pyrolysis technique. The solution mixture was sprayed onto the glass substrate at 310°C. The CTS thin films have a monoclinic crystal structure based on XRD analysis. FTIR confirmed Cu, Sn, and S chemical bonding, whereas the Scherrer formula predicted nanoscale particle size. The AFM analysis revealed a surface roughness measurement of 42 nm. Substrates coated with CTS film showed uniformity, which revealed the coated surface shape and design. A precise measurement of the substrate temperature was made. EDX confirmed Cu-Sn-S composition. For solar collector applications, thin films deposited in CTS were treated with a blue laser source with a 405 nm
... Show MoreGeotechnical soil problems underneath foundation of hydraulic structures occurs due to engineering soil properties, geological setting and hydraulic properties of the projects. Two finite element programs of Geoslope 2012 software, SIGMA/W and SEEP/W, were used for analysis of in situ stresses, load deformation behavior, seepage quantity and vertical gradient below Teeb weir foundation, to compute factors of safety against seepage uplift. The site soil is a granular (gravel, sand and silt), weakly cemented soil cohered by gypsum and clay materials. The area has low lying topography, with slightly tectonic activities. The model results show that the upstream side stresses are reduced while the pore pressure are in
... Show MoreLet be an R-module, and let be a submodule of . A submodule is called -Small submodule () if for every submodule of such that implies that . In our work we give the definition of -coclosed submodule and -hollow-lifiting modules with many properties.
This paper introduced a hybrid technique for lossless image compression of natural and medical images; it is based on integrating the bit plane slicing and Wavelet transform along with a mixed polynomial of linear and non linear base. The experiments showed high compression performance with fully grunted reconstruction.
Any research focusing on the teaching-learning process must focus on the learner, by mobilizing the various devices to facilitate and optimize learning. In this context, we introduce the integration of educational technologies into a personal learning environment (PLE). The PLE has significant potential for learning; namely self-construction and self-management of knowledge. According to Attwel (2007b), the development and improvement of PLE will lead to drastic changes in the way we use educational technology, as well as in the organization and ethics of education. With the present contribution, we try to modelize the PLE of students within institutions of higher education in Morocco. Based on data from a questionnaire put online using
... Show MoreThe concept of St-Polyform modules, was introduced and studied by Ahmed in [1], where a module M is called St-polyform, if for every submodule N of M and for any homomorphism ð‘“:N M; kerð‘“ is St-closed submodule in N. The novelty of this paper is to dualize this class of modules, the authors call it CSt-polyform modules, and according to this dualizations, some results which appeared in [1] are dualized for example we prove that in the class of hollow modules, every CSt-polyform module is coquasi-Dedekind. In addition, several important properties of CSt-polyform module are established, and other characterization of CSt-polyform is given. Moreover, many relationships of CSt-polyform modules with other related concepts are
... Show MoreThis study included extraction, physiochemical and partial purification of some crud alkaloide compounds in berries, leaves and roots of (Solanum nigrum) Solanaceae plants, which is locally named ( ANAB Al-THEA'B ) . It's the most important medicinal herb, which is widely distribution in IRAQ and used in folklore medicine. The phytochemical investigation of the plant was designed to evaluate alkaloid contente in berries, leaves and roots. Four major crud alkaloid were isolated and partially purified as follows, ( a, b, c and d ). The yield was 8.73%, 9.5%, 0.9% and 0.33% respectively. Acid hydrolysis was performed using limited concentration of HCl or H2SO4 to obtain the aglycon part of the previously separated component as ( A, B, C and
... Show MoreThe efficacy chlorofert 48% Ec under field and laboratory condition at 0.5, 1.0
and 1.5 on eggs, nymphs and adults of Aleuroclava Jasmine was investigated in
Baghdad region. the result of laboratory show the insecticide give killing percentage
100% on adults after one day from treatment at 0.5 with efficacy 100% and the high
killing percentage on nymphs and eggs after one weak from treatment the killing
percentage on nymphs 95.3 with efficacy 87.00 at 0.5 and on eggs the killing
percentage 61.25 with efficacy 78.00 at 0.5 the result in filed show the high killing percentage after one weak treatment, 1.5 gave 97 killing percentage with efficacy
95% on eggs and 96% killing percentage with efficacy 95 on n