Computer-aided modeling and simulation software programs are essential tools
to predict how an optical communication component, link, or network will function
and perform. This paper aims to investigate the various effects on pulses
propagation in optical transmission systems utilizing the MATLAB program.
Dispersion and Attenuation effects are explored. The simulation of Gaussian pulses
propagation through single mode optical fiber, simplifies the design of optical
communication system and make the design process more efficient, less expensive,
and faster.

The upper of Mukdadiya Formation (Pliocene), which exposed south-east of Badra on the west of the anticline. This part of the Formation ranging between 80m to 120m in the study area. Two sedimentolgical sections were studied in the area. The Formation composed mainly of clastics sediments. These clastics consist of conglomerate, sandstone and mudstone facies.
The conglomerate facies mostly are with trough cross bedding and normal graded bedding. The matrix content decrease upwards within the conglomerate beds. The sandstone facies is mostly of very coarse to coarse sand grains, andmostly with trough cross bedding. The bed thickness of the both above facies varies vertically and laterally from one location to another as well as in th

Sodium atomic beam of limited broadening, of angular divergence of 5.15o was
generated to investigate the hyperfine structure of sodium D2 line. R6G dye laser
was orthogonally interact with Na-atomic beam and recording of fluorescence signal
(λ=5896Ǻ) showed a hyperfine structure of Na-D2 line of 1.03 GHz.

In recent years, Elliptic Curve Cryptography (ECC) has attracted the attention of
researchers and product developers due to its robust mathematical structure and
highest security compared to other existing algorithms like RSA. It is found to give
an increased security compared to RSA for the same key-size or same security as
RSA with less key size. In this paper a new approach is proposed for encrypting
digital image using the arithmetic of elliptic curve algebra. The proposed approach
produced a new mask for encrypt the digital image by use a new convolution
processes based on ECC algebra operations and work as symmetric cryptographic
system instead of asymmetric system. A new approach combined both compression

In this research we concern with the comparison between the two ways of
providing redundant units for a system:-
1. Component redundancy.
2. System redundancy.
The comparison between these ways is carried out by comparing the random
variable representing the lifetime of the system resulted from applying component
redundancy with the random variable representing the lifetime of that resulted from
applying system redundancy using some types of stochastic orderings, namely:
(1) usual stochastic ordering, (2) failure rate ordering, (3) likelihood ratio ordering,
(4) reversed failure rate ordering and (5) mean residual life ordering.

Let R be a commutative ring with identity and let M be a unital left Rmodule.
Goodearl introduced the following concept :A submodule A of an R –
module M is an y – closed submodule of M if is nonsingular.In this paper we
introduced an y – closed injective modules andchain condition on y – closed
submodules.

Let be a Banach space, be a nonempty closed convex subset of , and be self
nonexpansive map. The sequence generated by the iterative method
, where be a contractive mapping
and is a sequence in We generalize the mapping to non-sel -Strongly
Pseudocontractive .

To determine the relationship between celiac disease and reproductive complication, twenty five women with clinically definite unexplained infertility aged (22-35) have been investigated and compared to fifteen apparently healthy women. All the studied groups were subjected to measurement of anti-tissue transglutaminase antibodies IgA and IgG by ELISA technique and anti-endomysial antibodies IgA and IgG by IFAT technique .There was a highly significant elevation (P< 0.01) in the concentration of anti- tTG IgA Abs compared to control group, Also, there was significant elevation (P< 0.05) in the concentration of anti- tTG IgG Abs compared to control group .The results illustrated that the prevalence of anti-EMA IgA and IgG Abs were (

The aim of current study is estimate the ability of low cost adsorbents, which consist of extracted silica from rice husk ash in treatment of Industrial waste water that contains heavy metals (Cd, Co and Pb) with other pollutants by fixed filters technique with determine the best method for that, and study the effect of a number of variables and parameters. This study involved one waste water samples were collected from. State battery manufacturing company (SBMC) (before treatment unit) at 5th and 22th, of the January 2015. Adsorption tests showed that all tested adsorbent materials had a significant heavy metal removal efficiency. pH values showed a significant impact on adsorption process, but best removal efficiency occurred at pH 4.5

The paper comprise comparative palynological study of (11) species belong to the genus Echinops L. in Iraq i.e( E.armatus Boiss. & Hausskn ، E.bicolor Nabelek. ، E.cephalotes DC., E.haussknetchii Boiss. ، E.mosulensis ، Rech. ،
E.nitens Bornm. ، E.orientalis Trautv., E.parviflorous BOISS & BUHSE ،
E.spinossisms Turra . ، E.tenuisectus Rech. ، E.viscosus DC.، Pollen grain were found to be Tricolporate and with spherical shaped ,in polar view the grain found to be Interangular , while in equatorial view the grain found to be ellipsoid .

The aim of this research , Principal component Is to find orthognal sets of vectors that maximize the variance of the projected dat, pca seeks a transformation nation of the data into another from of reference with as little error as possible, using fewer factors than the original datat. and find the connection among the student’s degrees through an applicative study on accountancy department for the afternoon studied who graduated in 2002- 2003 in Management and Economy- Baghdad University.
After taking their marks for the last year downward to the third year , second and first year far of the fail years with using of the model of artificial neural network and the statistical model (principle component), to compared the results b

Secure Shell (SSH) is a secure remote login program which can be used in place of regular telnet. It has become the default remote access method for administration of UNIX systems. It is very common for public Internet facing servers to experience attacks that attempt to brute force username and password combinations via SSH to gain access. This paper examines these attacks depending on SSH log file to find unsuccessful logins then blocks IP addresses of unsuccessful logins for a period of time that is decided by administrator and then send an e-mail to administrator to consider whether the addresses blocked belong to users failed to access or by an attacker, finally the administrator will block attacker's IP address forever. Some attack

The OSPF cost is proportionally indicated the transmitting packet overhead through a certain interface and inversely proportional to the interface bandwidth. Thus, this cost may minimized by direct packet transmitting to the other side via various probable paths simultaneously. Logically, the minimum weight path is the optimum path. This paper propose a novel Fuzzy Artificial Neural Network to create Smart Routing Protocol Algorithm. Consequently, the Fuzzy Artificial Neural Network Overlap has been reduced from (0.883 ms) to (0.602 ms) at fuzzy membership 1.5 to 4.5 respectively. This indicated the transmission time is two-fold faster than the standard overlapping time (1.3 ms).

The Moroccan socio-economic context is more and more weakened by a dynamic of accelerated measures aimed at redressing the financial deficits of the state. The first emotionally impacted by this dynamic are parents and therefore their children who begin to live in a universe dominated by fluctuations and unforeseen events.
This article will therefore explore the emotional situation of Moroccan pupils at the beginning of schooling and identify their needs in this area, in order to initiate a dynamic of engineering emotional intelligence in primary school.
The study was carried out in 3 school groups in Casablanca on a mixed population of 160 pupils and was spread out over a month. The used tools comprised interviews with survey fill

Our article seeks to understand how perceptions of social and societal responsibility of brands influence the process of consumer engagement. For this, we are interested in the specific expectations of consumers in terms of the social responsibility of the citizen brands they consume.
Our results indicate that a consumer perceives a brand as socially responsible if it assumes, in addition to its environmental and philanthropic responsibility, a health responsibility for the respect of the health of its consumers. Our results confirm the influence of social responsibility perceptions on consumer engagement with the brand and offer a new understanding of the relationship process at work.

     This investigation aims to determine whether it is feasible to use the limestone rocks found in the Al-Samawa stone quarry in southern Iraq as the stationary phase in column chromatography separation. Together with the chromatographic application, the physical and chemical characteristics of the rocks are examined. SiO₂, SO₄, PO₄, NO₃, and Cl are the negative ions, while Ca, Mg, Na, K, and Li are the positive ions. The limestone samples are characterized via chromatographic analysis. The results suggest that limestone samples could be used as an adsorbent material for chromatographic separation techniques. Additionally, samples from the Nasiriyah refinery's crude oil can be used to sep

In the current research work real time gamma correction (contrast balancing) procedure were performed. The motivation behind this research work is to reproduce an accurate image on the monitor for an uncorrected image on a particular computer system. But, in the real world, it isn't quite this simple, especially when an image needs to look good on different systems, or platforms because most computers, or more specifically, most computer systems, do not work in exactly the same way. However, the current work exploit the advantage that the most monitors work in about the same way with respect to gamma correction to reproduce correction image. Different images from real world were tested using current procedure to illustrate efficiency of

كمحاولة لتعيين موقع الحد الفاصل بين النطاق المستقر والنطاق غير المستقر ثم اج ا رء تحليل ود ا رسة
44 ) شرقاً وبين دائرتي 11 42 و 45 56 لخارطة شواذ بوجير للمنطقة التي تقع بين خطي طول ( 45
33 ) شمالاً. 19 31 و 21 43 عرض ( 36
تضمن البحث اج ا رء تحليل نوعي وكمي للمعطيات الجذبية حيث اخذت الق ا رءات الجذبية من خارطة شذوذ
5) كيلومت ا رً. شمل التحليل النوعي × بوجير الجذبية والتي بلغ عددها ( 896 ) ق ا رءة، وبفاصلة شبكية مقدارها ( 5
ل

Qa'a Selma (as a playa) is located on the northern basaltic flow of northeast Jordan, about 35 km northeast of the Safawi town. The present climate of the region is characterized by seasonal rain (during winter) and it has mild winter and temperate dry summer. Late Pleistocene palaeoclimatic and palaeohydrologic conditions of Qa'a Selma are deduced based on lake level changes. One palaeoshoreline was delineated at 745m a.s.l. and 4m above the present one (1m above the bottom of Qa'a). The Qa'a is located at 740m a.s.l. The present Qa'a area is calculated to equal 18 km2, where its area has increased during the Late Pleistocene pluvial period and calculated to reach 36 km2. The Drainage basin area is calculated as well to equal 15000 km2.

Dust grain in plasma is charged up by collecting electrons and ions from the
plasma, this charging process has been studied for laboratory dusty plasma. The
Orbital Motion Limited theory predicts the electron and ion currents toward the
grain, the discrete charging model uses these current values and converts it to
probabilities for collecting individual electrons and ions, this model assumed that
discrete charges will be collected at random intervals in a random sequence.
A program with FORTRAN programming language has been built to translate the
discrete model to simulate the charging process. Then, the value of the charge
number and their fluctuations as a function of time, charging time and mea

Virus is a program which is able to replicate with little or no user intervention,
and the replicated program(s) are able to replicate further. Writing a good virus is
challenging, the best viruses are written in C language, and building as executable
file from C source code to plant virus code into another executable. The result either
prohibitively large, or very dependent on the completeness of the target installation.
Real viruses approach the problem from the other end. They are aggressively
optimized for code size and do only what's absolutely necessary. However, this has
some limitations and the solution to these limitations is complicated and makes the
virus more likely to fail. This paper

Four N-substituted maleisoimides were prepared via dehydration of the corresponding maleamic acids usingNN,- dicyclohexylcarbodiimide as dehydrating agent. The prepared maleisoimides were introduced in free radical copolymerization with three selected vinylic monomers including acrylonitrile, methylmethacrylate and methylacrylate producing new copolymers having different physical properties. Moreover three maleisoimide homopolymers were prepared via free radical polymerization of N-substituted maleamic acids followed by their dehydration with ethyl chloroformate/Et3N.
The new homopolymers and copolymers are of great importance since it contain isoimide ring in their repeating units which rearrange gradually with time and use to t

The present study was conducted to detect the susceptibility of six microorganisms isolated from patients suffering from urinary tract and wound infections against native honey, by the agar-well diffusion method. These isolates included: Pseudomonas sp., Klebseiila sp., Escherichia coli, Proteus sp., Staphylococcus aureus and Candida albicans. The results showed that the bacteria isolates were resistant against most of the antibiotics uesd. Two isolates were sensitive to Amikacin and Co- trimoxazole, while all isolates were resistant to Gintamycin and Cephotaxime. In contrast, honey at 5% concentration was able to inhibit the growth of most microorganisms tested, with the exception of only Pseudomonas sp., which was inhibited at concentr

In this paper sufficient conditions for oscillation of bounded and all solutions of
linear third order neutral delay differential equation are studied. Examples are
inserted to illustrate the obtained results

The parametric programming considered as type of sensitivity analysis. This
paper is concern on the study the effect of the variations objective function
coefficients on the optimal solution. Of the parameter value (-5 ≤ θ ≤ 50) is taken the
result, of the objective function equal zero and the decision variables are non basic,
when the parameter (θ = -5).The objective function have value maximum when the
parameter (θ= 50) and the decision variables are become basic. Whenever the
parameter value increase, the objective function value increase too.

The Shalair Metamorphic Rock Group (SMRG) is northern exposure of variety lithological units in Iraq, and forms part of the western margin of the active Iranian plate. The SMRG consists of metasedimentary sequences, whereas the Katar Rash Volcanic Group (KRVG) consists of basic to acidic metaigneous rocks. The petrological and geochemical studies showed that the SMRG is characterized by three lithological units, these are metapelite, metacarbonate, metaarenite, and KRVG is characterized by metaigneous series including metabasalt, metaandesite, and metarhyolitic dacite. All these rocks are regionally metamorphosed into low grade metamorphism of green schist facies – chlorite zone. Thermal conditions of metamorphism are suggested about 3

Entamoeba histolytica was isolated from bloody mucoid stools of patients with amebic dysentery and cultivated on Lock-egg medium to which human serum was added. The parasites were maintained in culture for two weeks during which separate subcultures were prepared.
The effect of a water extract and of an alcoholic extract of seeds of Peganum harmala and leaves of Artemisia herba-alba on the viability of E. histolytica was tested. The effect of a combination of the water extracts and of the alcoholic extracts of both plants on amebic viability was also tested at concentrations of 1000 mg / ml and at 1500 mg / ml for two hours. The results showed a marked effect of both combinations of water extracts and of alcoholic extracts on viabil

The present study includes the evaluation of petrophysical properties and lithological examination in two wells of Asmari Formation in Abu Ghirab oil field (AG-32 and AG-36), Missan governorate, southeastern Iraq. The petrophysical assessment was performed utilizing well logs information to characterize Asmari Formation. The well logs available, such as sonic, density, neutron, gamma ray, SP, and resistivity logs, were converted into computerized data using Neuralog programming. Using Interactive petrophysics software, the environmental corrections and reservoir parameters such as porosity, water saturation, hydrocarbon saturation, volume of bulk water, etc. were analyzed and interpreted. Lithological, mineralogical, and matrix recogniti

       Th  goal of the pr s nt p p r is to obt in some differ tial sub rdin tion an  sup r dination the rems for univalent functions related b  differential operator  Also, we discussed some sandwich-type results.

In this research, the effect of electrode material on the parameters of the produced DBD plasma was investigated. First, a non-thermal plasma was created by applying a 15 kV AC voltage between two electrodes and using a glass plate as a dielectric barrier in the design Dielectric Barrier Discharge (DBD) plasma system. The obtained plasma spectrum was analyzed using optical emission spectroscopy to calculate plasma parameters by the Boltzmann plot method. Electrodes made of copper, aluminium, and stainless steel were employed in this research. Electron temperature ( ) for copper, aluminium, and stainless steel was found to be (1.398 eV), (1.093 eV) and (1.009 eV), respectively.