bluuebunny/crossref_metadata_2025 huggingface dataset:
AP-1 activity induced by co-stimulation is required for chromatin opening during T cell activation
Authors: Yukawa Masashi , Jagannathan Sajjeev , Vallabh Sushmitha , Kartashov Andrey V. , Chen Xiaoting , Weirauch Matthew T. , Barski Artem
Published: October 2019

Activation of T cells is dependent on the organized and timely opening and closing of chromatin. Herein, we identify AP-1 as the transcription factor that directs most of this remodeling. Chromatin accessibility profiling showed quick opening of closed chromatin in naive T cells within 5 h of activation. These newly opened regions were strongly enriched for the AP-1 motif, and indeed, ChIP-seq demonstrated AP-1 binding at >70% of them. Broad inhibition of AP-1 activity prevented chromatin opening at AP-1 sites and reduced the expression of nearby genes. Similarly, induction of anergy in the absence of co-stimulation during activation was associated with reduced induction of AP-1 and a failure of proper chromatin remodeling. The translational relevance of these findings was highlighted by the substantial overlap of AP-1–dependent elements with risk loci for multiple immune diseases, including multiple sclerosis, inflammatory bowel disease, and allergic disease. Our findings define AP-1 as the key link between T cell activation and chromatin remodeling.
Drag force on heavy quarks from holographic QCD *
Authors: Xiong Yuanhui , Tang Xingzheng , Luo Zhongjie
Published: October 2019

We study the drag force of a relativistic heavy quark using a holographic QCD model with conformal invariance broken by a background dilaton. The effects of the chemical potential and the confining scale on this quantity are analyzed. The drag force in this model is shown to be larger than that of

supersymmetric Yang-Mills (SYM) plasma. In particular, the inclusion of the chemical potential and confining scale both enhance the drag force, in agreement with earlier findings. Moreover, we discuss how the chemical potential and confining scale influence the diffusion coefficient.
Probing the top quark flavor-changing couplings at CEPC *
Authors: Shi Liaoshan , Zhang Cen
Published: October 2019

We propose to study the flavor properties of the top quark at the future Circular Electron Positron Collider (CEPC) in China. We systematically consider the full set of 56 real parameters that characterize the flavor-changing neutral interactions of the top quark, which can be tested at CEPC in the single top production channel. Compared with the current bounds from the LEP2 data and the projected limits at the high-luminosity LHC, we find that CEPC could improve the limits of the four-fermion flavor-changing coefficients by one to two orders of magnitude, and would also provide similar sensitivity for the two-fermion flavor-changing coefficients. Overall, CEPC could explore a large fraction of currently allowed parameter space that will not be covered by the LHC upgrade. We show that the c-jet tagging capacity at CEPC could further improve its sensitivity to top-charm flavor-changing couplings. If a signal is observed, the kinematic distribution as well as the c-jet tagging could be exploited to pinpoint the various flavor-changing couplings, providing valuable information about the flavor properties of the top quark.
Giant dipole resonance parameters from photoabsorption cross-sections *
Authors: Tian Yuan , Tao Xi , Wang Jimin , Ke Xianbo , Xu Ruirui , Ge Zhigang
Published: October 2019

The structural effect is believed to have no influence on the decay properties of medium and heavy-mass nuclei at excitation energies above the pairing gap. These properties can be described by statistical properties using so-called photon strength functions for different multipolarities, and directly related to the photoabsorption cross-section (

).

is dominated by the electric giant dipole resonance at

energy

MeV. In this study, we construct two kinds of systematic giant dipole resonance parameters by fitting the experimental photoabsorption cross-sections. One is based on the microscopic relativistic quasiparticle random phase approximation approach, whereas the other is estimated by the phenomenological models within the Lorentzian representation. Both of them are demonstrated ot efficiently describe the experimental photoabsorption cross-sections available for medium to heavy-mass nuclei, and they can obtain more reliable predictions for the unknown nuclear system.
A pattern for the flavor dependent quark-antiquark interaction
Authors: Chen Muyang , Chang Lei
Published: October 2019

A flavor dependent kernel is constructed based on the rainbow-ladder truncation of the Dyson-Schwinger and Bethe-Salpeter equations in quantum chromodynamics. The quark-antiquark interaction is composed of a flavor dependent infrared part and a flavor independent ultraviolet part. Our model gives a successful and unified description of the light, heavy and heavy-light ground state pseudoscalar and vector mesons. Our model shows, for the first time, that the infrared enhanced quark-antiquark interaction is stronger and wider for lighter quarks.
Non-relativistic expansion of single-nucleon Dirac equation: Comparison between Foldy-Wouthuysen transformation andsimilarity renormalization group *
Authors: Guo Yixin , Liang Haozhao
Published: October 2019

By following the Foldy-Wouthuysen (FW) transformation of the Dirac equation, we derive the exact analytic expression up to the 1/M
4 order for general cases in the covariant density functional theory. The results are compared with the corresponding ones derived from another novel non-relativistic expansion method, the similarity renormalization group (SRG). Based on this comparison, the origin of the difference between the results obtained with the FW transformation and the SRG method is explored.
Isospin-sensitive observables as a probe of proton transition momentum in the HMT *
Authors: Zhang Fang , Peng Hai-Bo , Zhao Jiang-Tao
Published: October 2019

Based on the IBUU transport model, the effect of proton transition momentum on collective flows is studied in 40Ca + 40Ca,112Sn + 112Sn, and 197Au + 197Au collisions at an incident beam energy of 400 MeV/A with impact parameter

. It is found that in a neutron rich system, the difference between neutron and proton elliptic flow is largely affected by the proton transition momentum. At beam energies around (and particularly below) the pion production threshold, the

ratio is greatly sensitive to proton transition momentum in asymmetric nuclear matter. This study may help us to understand the nucleon momentum distribution in nuclei, which is important for the equation of state of asymmetric nuclear matter, such as neutron stars.
Chemiluminescence study of the effects of Router radiation on red blood cell volume and Erythrocyte sedimentation rate in Human blood human blood
Authors: Adnan Abdulqader Qahtan , Alhasan Ammar
Published: October 2019

It is in vitro study to examine the effect of electromagnetic radiation from router on human blood samples rheological factors, such as mean red blood cell volume (MCV) and erythrocyte sedimentation rate (ESR). Samples were irradiated for one, ten, twenty four hour, and three with 500 milli-watt. The measurements were done directly after the irradiation, chemilumenscence (CL) signal. MCV and ESR decresed after irradiation for ten hours by 20.6%, 0.41%and 5.3% respectively. This because the effect of radiation on the composition of the plasma that finally effect in ESR of whole blood.
0.006wt.%Ag-Doped Sb2O3 Nanofilms with Various Thickness: Morphological and optical properties
Authors: Haneen Abass Khalid , Haidar Obaid Noor
Published: October 2019

In this work, Antimony trioxide (Sb2O3) nanofilms doped with Ag nanoparticle (0.006 wt.%) are prepared by thermal evaporation technique with thickness of 30, 38, 42, 48, 53 and 60 nm were deposited onto glass substrate. The effect of film thickness on morphological and optical properties were investigated. Morphology of the films are examined via AFM, the surface roughness were affected by low Ag doping. The optical measurements of the films are studied by UV-Visible spectrophotometer in the wavelength range (200- 1100) nm. It was found that the transmittance (T), absorbance (A) and optical band gap (Eg) depend markedly on the films thickness. The transmittance decreased with the increasing of film thickness, while the absorbance increased. The energy gap value decreased with increasing thickness in the Sb2O3:Ag films from 3.6 eV for the film thickness 60 nm to 3.4 eV for the film thickness 30 nm. The refractive index, extinction coefficient, and real and imaginary dielectric constants obtained results show that film thickness strongly affects the optical parameters.
The evaluation and analysing the boron concentration rate in soil of north Basrah city (Iraq) by carmine method
Authors: Salman Thaer M , Fakher Alfahed R K , Badran Hussain A. , Ajeel Khalid I , Jafer Mustefa M , Mohammad Kareem K
Published: October 2019

One of the primary goal of the current research is to estimate the concentration of Boron element

B

5

10

in soil of North of Basrah in Iraq. The evaluation was achieved by analysing the soil samples obtained from 34 locations using carmine method. The estimation range of Boron concentration was between 0.259 ppm to 0.757 ppm corresponding to Al-Huwair, Al-Mhayit and Al-Huwar river EZZ in soil respectively. It can be noticed from the study that all the surface soil samples under the test have a boron ratio within the natural limits for drinking water supplies for the people.
Analysis of Solar Radiation Data from Satellite and Ground Station for PV System Applications in Al-Diwaniyah Location
Authors: Resen Ali K , Mahdi Emad J , Nmr Jawad S
Published: October 2019

Solar radiation power is the fuel for all solar energy production purposes. All sets of activities such as chemical, physical and biological revolving near the ground or in the atmosphere layer. The solar radiation data at ground level and in the atmosphere are an important characteristic in solar energy applications such as photovoltaic (PV) systems. Various meteorological databases are accessible with data acquired from ground measurements, satellite data, or unification of both. In this paper, the comparison between satellite data derived from ground station installed at Al-Diwaniyah location and PVGIS website so as to design the PV system for maximum competence under different climatic conditions.The monthly data for one year (2015) was analyzed and assessed at zero and tilt planes. The results showed that the difference and bias between acquired satellite and ground station data. The annual rate value of solar radiation for selected location is 1423.5 (Kwh/m2/year) for ground data and 1825 (Kwh/m2/year) for PVGIS data, so, this rate is suitable for PV solar system applications.
Physical Properties of indium doped Cadmium sulfide thin films prepared by (SPT)
Authors: Hassan Ehssan S , Mubarak Tahseen H , Chiad Sami S , Habubi Nadir F , Khadayeir Abdulhussain A , Dawood Mohamed O , Al-Baidhany Ismaeel A
Published: October 2019

Various thin films of cadmium sulfide doped with different weight ratios (wt %) of indium (CdS: In), were prepared on glass substrates by Spray pyrolysis technique (SPT), The Microstructural, topography and optical characteristics were studied. Pure films and doped with In 1%. The results obtained revealed that the growth toward single crystalline hexagonal- cubic phases. The dominant reflection is in the direction (101) plane with a crystalline size 47.55 nm, which is calculated utilizing Scherrer equation. The increase in In to 3% tends the structure to be the poly crystalline with the existence of the prevalent reflection in the direction of (101) plane with a the crystal size of 53.89 nm. The topography measurements showed that the surfaces of the nanostructured are in the form of rods with a height of 1.99 nm and a diameter of 50-60 nm. The rod height decreased with the increasing in doping weight ratios, while the diameter of the rod increased. The optical measurements showed lower transmittance with the increasing of doping from T% 95 to T% 64. A decrease in the optical energy gap value was noticed.
The effect of substrate temperature on the physical properties of copper oxide films
Authors: Khadayeir Abdulhussain A , Hassan Ehssan S , Mubarak Tahseen H , Chiad Sami S , Habubi Nadir F , Dawood Mohamed O , Al-Baidhany Ismaeel A
Published: October 2019

The effect of the substrate temperature of the deposition of copper oxide prepared by chemical spray pyrolysis technique was studied. The XRD measurements show that all the films are polycrystalline structure with predominant phase(-111). The crystallite size increase with increasing substrate temperature. The AFM images in 1-D and the 2-D shows that the CuO nanostructure were in the shape of curly sticks growing in a vertical column at an average height of 2.00 nm and an average radius of 40 - 50 nm. These nanostructures of the 3% sample gets higher up to 9.00 nm. The value of the optical energy gap was calculated through the UV-Vis spectrometer and found to decrease with increasing the substrate temperature from 1.93 eV to 1.68 eV. Transmittance values also decreased from 79.5% to 36%.
Noise removal from medical image using fusion technique based on DWT coefficient
Authors: Russell A H
Published: October 2019

This paper introduces new manner for removing noise from medical images using wavelet transform based on fusion technique. The main goal of this research is restaurant the medical image based on peak signal to noise ratio value. This paper contains of three key stages are discrete wavelet transform, denoising wavelet and fusion technique. The new idea is compared each sub band of wavelet with other sub band depend on PSNR value and is selected the higher value of measure. First, perform 2level of discreet wavelet transform on the noisy medical images. Then, perform denoising wavelet techniques (soft and hard thresholding) that achieved by threshold value for detail coefficient and compared it with wavelet coefficients for detail sub band. Second, select sub band that contains the higher peak signal to noise ratio value that has less amount of noise from each image and it is merged to form the fused image. Finally, perform inverse discrete wavelet transform to convert the output image (fused image) from frequency domain to spatial domain. The outcomes of the work showed that soft thresholding is better than hard thresholding based on higher PSNR value. The fusion process gives better results than wavelet denoising technique.
Reconstruction the illumination pattern of the optical microscope to improve visibility and number of tracks on the CR-39 detector
Authors: Faez Hassan Saja , Tarik Al-Alawy Iman , Gati Daway Hazim
Published: October 2019

In this study, the usual light source (Tungsten) used in the optical microscopy with intensity (924W/mm2) was changed to another light source (LED) of intensity 1049W/mm2). Eight pieces of the CR-39 (SSND) track detector with dimensions (1cm×1cm) and thickness (500μm) were irradiated with the Am-241 source, has radioactivity 12μci, for different irradiation times (30:30:270 sec) and direct contact with track detectors. After etched and drying the track detectors, they were read under the optical microscope (Pro-Way) before and after the source of light changed. The number of tracks in using the intensity of the Fluorescence and LED cases of lighting through the optical microscope was calculated using software via digital camera (HDEC-50B) through the calculator screen. The results showed an increase in the visibility of the track boundary with a significantly higher number of visible tracks.
Multi-Forked Microstrip Patch Antenna for Broadband Application
Authors: Godaymi Wa’il A , Shaaban Raed M , Al-Tumah  , Tahir Akeel S , Ahmed Zeki A
Published: October 2019

In this paper, a new design simulation of multi-forked microstrip patch antenna is presented. The proposed antenna design consists of rectangular patch structure loaded multi-slotted forked with Arlon AD320A (tm) dielectric, direct coaxial probe feed technique, and microstrip edge feed, the novel forked shaped patch. The composite effect of integrating these multi-shapes forked patches techniques and by introducing the new multi-slotted patch.The best result of proposed antennas was a wide impedance bandwidth of 114 % at 10.31 GHz resonance frequency for microstrip line feed approach, and maximum achievable gain is 6.3 dB for coaxial probe feed approach. The return loss, directivity gain, and voltage standing wave ratio are simulated results using HFSS 13.0 software.
Synthesis and characterization of ZnO nanoparticles using sol gel technique for dye sensitized solar cells applications
Authors: Musleh H , Zayed H , Shaat S , Tamous H M , Asad J , Al-Kahlout A , Issa A , Shurrab N , AlDahoudi N
Published: October 2019

ZnO nanoparticles were synthesized using sol gel technique at different calcination temperature. The effect of calcination temperature on the structure and optical properties of ZnO NPs were studied in detail by using different techniques, X-ray diffraction, high-resolution transmission electron microscope, UV-VIS spectroscopy and photoluminescence spectroscopy. X-ray diffraction analysis revealed that the ZnO NPs were crystalized in a wurtzite structure and the estimated average particle size increased from 24.7 to 40.4 nm with increasing calcination temperature. In addition, the d spacing increased from 0.28196 nm to 0.28213 nm. High-resolution transmission electron microscopy analysis image showed spherical ZnO NPs were formed. UV-VIS absorption measurement was employed to evaluate the absorption edge and the optical band gap using Tauc plot. Energy gap revealed a red shift from 3.15 to 2.96 eV when the calcination temperature was increased. Dye sensitized solar cells were fabricated using synthesized ZnO NPs as a semiconducting layer that were dyed with different Xanthene (CH2[C6H4]2O) dyes separately; (Eosin B, Eosin Y and Rhodamine B) which are low cost dyes. Thin layer of ZnO were deposited on transparent fluorine doped tin oxide conductive glass using doctor blade method. Eosin Y exhibited the best photosensitizing. The conversion efficiency showed a significant improvement from 0.1% to 1.08%.
Study Effective Atomic Numbers and Attenuation Cross-Section of Caprylic Acid by Using Gamma Ray Sources.
Authors: Hussein Faraj Ali , Yahya Hadi Mohammed , Adil TAldalawi Ali
Published: October 2019

Measured the effective atomic number(Z
eff
), effective electron density (N
eff
), atomic cross-section (бt
)and electronic cross-section (бe
)depending on the amount of mass attenuation coefficient, the mass attenuation coefficients (μ
m
)measured for fatty acid “Caprylic” C8H16O2by using Gamma ray radiation(γ), emitted from sources Co57, Ba133, Na22, Cs137, Mn54, and Co60with energies from 122 to1330 keV. We used scintillation NaI(Tl) detector with resolution 8.2% (at 662keV ). The attenuation coefficient data were then used to obtain the effective atomic numbers (Z
eff
), and effective electron densities (N
eff
), atomic cross-section (бt
)and electronic cross-section (бe
) off atty acids. It was observed that the effective atomic number (Z
eff
) and effective electron densities (N
eff
) initially decrease and tend to be almost constant as a function of gamma-ray energy. Z
eff
and N
eff
experimental values showed good agreement with the theoretical. Data on interaction of photons of energy (below 1500 keV) with biological compounds are used in radiation therapy, especially for dose calculations.
Electron Emission in Ion-Alkali Atoms Collision Process: Three Body Effect
Authors: Hamza Hussein Salman , Selman T A , Easa S I
Published: October 2019

Double differential scattering cross section for emitted electron from ground and excited states when the Ar+18 (75, 85 and 95 Mev/u) scattered off Alkali atom have been calculated within Born approximation following Stolterfoht et al, theoretical model. The emitted electrons from the excited state give large differential cross section comparison with the ground state. Many features of the scattering process are also discussed.
Comparison of Ureteroscopic Holmium Laser lithotripsy and ESWL in Treatment of Ureteric Stones
Authors: Ali Obaid Ahmed , Mahdi Ali Falah , Abdul Ameer Alwan Ahmed
Published: October 2019

The urologists have several options for treating ureteral stones in the range of 8-15mm. Of that range, this study makes a comparison between ESWL and ureteroscopic holmium laser lithotripsy in the treatment of ureteric stone. In spite of that ureteroscopy and ESWL are invasive procedures, still there is controversy which of them is more suitable for treating ureteral stones condition. Study Aim: This study conducts a review to compare the effectiveness, safety and complications of using ureteroscopic holmium laser lithotripsy and ESWL in treating of ureteral stones. Study Methods: Eighty ureteroscopic holmium laser lithotripsy or ESWL-treated patients between April 2016 and April 2017 in Al-Diwaneyah teaching hospital who is having 8–14mm single radiopaque ureteral stone, were assessed. All of the patients in the study sample were subjected to follow-up period of seven months using ultrasonography. Then, comparison was made to identify stone clearance rate, potential complications and cost. Study Results: Results show that There is resemblance in treatment time and stone clearance rate between the two treatments. Generally, the total cost, the procedural time and analgesia requirements and were noticeably variant. Additionally, gross hematuria and renal colic were more frequent with ESWL procedure, while the voiding symptoms show more frequency with ureteroscopy procedure. The two procedures that were applied for the treatment of 8-14mm range ureteral stones proved to be the least invasive and secure.
Enhance the Optical Properties of the Synthesis PEG/Graphene- Based Nanocomposite films using GO nanosheets
Authors: Abdelamir Ahmed I , Al-Bermany Ehssan , Sh Hashim Fouad
Published: October 2019

Graphene is one of the most interesting and attracting nanofillers. The investigation focused on the effect of two significant factors using graphene nanosheets and polymer molecular weights (Mw) on the optical properties of polymer graphene-based nanocomposites. New sonication-mixing-aquatic methods were applied using the three Mw, 4k, 8k and 20k of polyethylene glycol (PEG), as a polymer model, with low loading ratio graphene oxide nanosheets (GONSs) to synthesise the nanocomposites. Fine distribution and good homogeneity of GONSs were successfully presented in the PEG matrix as examined applying the optical microscope (OM). The results presented an enhance in the most optical properties, which shows significantly in the ultraviolet region (∼300 nm in wavelength), such as, absorbance, absorption coefficient, real and imaginary dielectric constants up to 71%, 355%, 37% and 41% after increasing the Mw, except the allowed and forbidden indirect optical energy gap were reduced to 18% and 29%, respectively. Moreover, the contribution of GO with Mw of PEG exhibited a notable improvement of the optical properties up to 100%, 440%, 48% and 61%, whereas the allowed and forbidden indirect optical energy gap were reduced to 43% and 86%. These results illustrated significant roles of the effect of MW and GO in the optical properties that give rise to better photovoltaic performances of heterojunction solar cells and may use as filters and antireflection coating in the substantial applications.
Structural, Optical, Morphological Properties of ZnO Nanoparticle/ZnO Nanorods
Authors: Hadi Al-Weally Dhufr , Mebdir Holi Araa , Abdullah AL-Zahrani Asla
Published: October 2019

ZnO nanoparticles/ZnO nanorods (ZnO NPs/ZnO NRs) were prepared via Chemical methods: dip-coating/sol-gel method (DC/SG-M) and hydrothermal method (HT-M). The structure of ZnO NPs/ZnO NRs was studied utilizing X-ray diffraction (XRD). The UV-Visible spectrometer was used to analyze the absorption spectra. Surface morphology of prepared ZnO NPs/ZnO NRs was studied via field-emission scanning electron microscopy (FE-SEM). Starting with (XRD) study, it confirms that the prepared ZnO NPs/ZnO NRs has the hexagonal phase structure. Moreover, the average crystallite size of the ZnO NPs/ZnO NRs was 22.7 nm and 51.5 nm, respectively. FE-SEM result reveals that the prepared ZnO NPs/ZnO NRs samples have shown the nanoparticles-shape of the first prepared layer via dip-coating and radial hexagonal-shape of the second prepared layer via the hydrothermal method. The absorption spectra of ZnO NPs and ZnO NRs were around at (382 and 400) nm with the estimated direct band gaps energy were (3.24 and 3.10) eV, respectively.
Giant Net Modal Gain of plasmonic quantum dot nanolaser
Authors: Jabir Jamal N , Ameen Sabah M M , Habbeb Al-Khursan Amin
Published: October 2019

This work studies the net modal gain from plasmonic quantum dot (QD) nanolaser. A metal/semiconductor/metal (MSM) structure was considered to attain plasmonic nanocavity with active region contains: QDs, wetting layer (WL) and barrier layers. Band alignment between layers was used to predict their parameters. Momentum matrix element for transverse magnetic (TM) mode in QD structure was formulated. Waveguide Fermi energy was introduced and formulated, for the first time, in this work to cover the waveguide contribution (Ag metal layer) in addition to the active region. Giant net modal gain was obtained when the waveguide Fermi energy was taken into account which means that the increment comes from the material gain not from the confinement factor. The change in waveguide Fermi energy in the valence band explained the high net modal gain, where the valence band QD states are fully occupied referring to an efficient hole contribution.
Generalized Hyers-Ulam Stability Of Mixed Type Additive-Quadratic Functional Equation Of Random Homomorphisms In Random Normed Algebras
Authors: Alshybani Shaymaa , Mansour Vaezpour S , Jaafar Mahmood Sahar
Published: October 2019

In this paper, by the fixed point method, we prove the generalized stability of random homomorphisms of the following additive-quadratic functional equation f(2 + y) + f(2 − y) = 2[f(x + y) + f(x − y)] + 2[f(x) + f(−x)] − [f(y) + f(−y)], in random normed algebras.
Impulsive Pressure Activity on MHD Flux Generalized Burgers Fluid
Authors: Ibraheem Ghada H , Qasim Hanan F
Published: October 2019

The main purpose of the work is to analyse studies of themagnetohydrodynamic “MHD” flow for a fluid of generalized Burgers’ “GB” within an annular pipe submitted under impulsive pressure “IP” gradient. Closed form expressions for the velocity profile, impulsive pressure gradient have been taken by performing the finite Hankel transform “FHT” and Laplace transform “LT” of the successive fraction derivatives. As a result, many figures are planned to exhibit the effects of (different fractional parameters “DFP”, relaxation and retardation times, material parameter for the Burger’s fluid) on the profile of velocity of flows. Furthermore, these figures are compared the flow without MHD.
Integral transforms defined by a new fractional class of analytic function in a complex Banach space
Authors: Esa Abdulnaby Zainab , Abdul-Nabi Ahmed E
Published: October 2019

In this effort, we define a new class of fractional analytic functions containing functional parameters in the open unit disk. By employing this class, we introduce two types of fractional operators, differential and integral. The fractional differential operator is considered to be in the sense of Ruscheweyh differential operator, while the fractional integral operator is in the sense of Noor integral. The boundedness and compactness in a complex Banach space are discussed. Other studies are illustrated in the sequel.
Trigonometrically fitted fifth-order explicit two-derivative Runge-Kutta method with FSAL property
Authors: Abbas Hussain Kasim
Published: October 2019

A new trigonometrically fitted two-derivative explicit Runge-Kutta (TFTDRK) method of order five with FSAL property for solving system of first-order ordinary differential equations (ODEs) with oscillatory solutions are derived. The new method is derived using the property of First Same As Last (FSAL). This method has the advantageous to merge totally first-order ordinary differential systems which their solutions are linear composition of the set of functions {e (u );e (−u)}, or equivalently {s (u );c (u)} when u > 0 is the dominant frequency of the problem. We analyzed the stabilityof our method. The numerical results are presented to illustrate the competence of TFTDRK method compared with some well-known TFRK methods.
The combined effectiveness of magnetic force and heat\mass transfer on peristaltic transportation “Hyperbolic Tangent” Nanofluid in a Slopping Non-Regular Non-symmetric Channel.
Authors: Sh Ahmed T
Published: October 2019

in the present article, we present the peristaltic motion of “Hyperbolic Tangent nanofluid” by a porous area in a two dimensional non-regular a symmetric channel with an inclination under the impact of inclination angle under the impact of inclined magnetic force, the convection conditions of “heat and mass transfer” will be showed. The matter of the paper will be further simplified with the assumptions of long wave length and less “Reynolds number”. we are solved the coupled non-linear equations by using technical analysis of “Regular perturbation method” of series solutions. We are worked out the basic equations of continuity, motion, temperature, and volume fraction particles for the recently fluid. The impact of incoming parameters on the inflow features have been studied and painted.
Asymptotic Behaviour of the Uniform Random Dynamical Systems
Authors: Jabbar Kadhim Ihsan , Talib Mohsin Sundus
Published: October 2019

In this paper we state the definition of uniform random set in a uniform random dynamical system and give some properties of such sets. Also the concepts of Transitivity and sensitivity of a uniform random dynamical system are introduced and studied where some new properties of such systems that analogues to that in deterministic dynamical systems are given.
Influence of MHD Peristaltic Transport for Jeffrey Fluid with Varying Temperature and Concentration through Porous Medium
Authors: Hussien Al-Aridhee Ahmed A , Salih Al-Khafajy Dheia G
Published: October 2019

This paper is intended for investigating the effects of heat and mass transfer on the peristaltic motion of Magnetohydrodynamic of a non-Newtonian transport of Jeffrey fluid through a cylindrical porous medium channel. The flow is investigated in a wave frame of reference moving with the velocity of the wave. Governing equations for the problem under consideration have been simplified under the assumptions of long wavelength and low Reynolds number approximation. The distribution of temperature and concentration are discussed for various parameters governing the flow with the simultaneous effects of. The analytical formulas of the velocity and temperature have been obtained in terms of Bessel function of first and second kinds. In addition, it has been illustrated graphically for significant various parameters such as, magnetic, permeability, Radiation, Reynolds number, Prandtl number, Schmidt and Soret numbers on these velocity are discussed and illustrated graphically.
Recovery of temporal coefficient for heat equation from non-local overdetermination conditions
Authors: Sabah Hussein Mohammed
Published: October 2019

Recovery of time-dependent thermal conductivity has been numerically investigated. The problem of identification in one-dimensional heat equation from Cauchy boundary data and mass/energy specification has been considered. The inverse problem recasted as a nonlinear optimization problem. The regularized least-squares functional is minimised through lsqnonlin routine from MATLAB to retrieve the unknown coefficient. We investigate the stability and accuracy for numerical solution for two examples with various noise level and regularization parameter.
On the geometric pictures of the non-equivalent smallest images of (k;n)-arcs for n = 2,3 in PG(2,5)
Authors: Shehab Hamed Zainab
Published: October 2019

In this paper, the smallest images sets in the PGL(2,5)-orbits of (k;n)-arcs in the projective plane of order 5, for n = 2,3 are classified. Also, this paper presents the incident structure of the orbits for the non-equivalent lexicographically least sets of k-arcs and (k;3)-arcs. Then the geometric pictures for the most interesting group orbits of these images are given.
E-Duality Results For E-Differentiable E-Invex Multiobjective Programming Problems
Authors: Abdulaleem Najeeb
Published: October 2019

In this paper, a class of E-differentiable multiobjective programming problems with both inequality and equality constraints is considered. The so-called vector Mond-Weir E-dual problem and vector mixed E-duality problem are defined for the considered E-differentiable multiobjective programming problem with both inequality and equality constraints and several Mond-Weir and mixed E-duality theorems are established under (generalized) E-invexity hypotheses.
Derivation of Probability Distribution Function for Noisy Signal
Authors: Oleiwi Zahraa Ch. , Al-Mayahi Noori F. , Jasim Sabib Donya , Kamil Hadi Nagham
Published: October 2019

The work in this paper produces mathematically derivation for Probability density function (PDF) of proposed noisy signal model. Two types of noise are considered: zero mean Gaussian multiplicative noise and phase noise. Cramer-Rao bound (CRB) expression of frequency estimator for single tone sinusoidal signal under zero mean Gaussian multiplicative noise and additive Gaussian noise (AWGN) are derived. The obtained simulation results support investigating mathematical and comparative study.
Reliability Allocation and Optimization for(ROSS) of a Spacecraft by using Genetic Algorithm
Authors: Abbas Abed Saad , Kareem Sulaiman Hatem , Abdul Haddi Hassan Zahir
Published: October 2019

This paper focuses on the reliability of Reduction Oxygen Supply System (ROSS) of a Spacecraft which was calculated as a complex system using probability theory. The reliability of this system was assigned to study the possible approaches of the allocation of reliability values based on the minimization of the total cost in this system. The original results was included:

(i) a critical point is a fixed purpose of a appropriate application.

(ii) Using the reduction oxygen supply system of a spacecraft of with the cost of exponential behavior model.

(iii) The results also obtained by genetic algorithim to solve the optimization problems of the given reliability network.
Deblurring X-Ray Digital Image Using LRA Algorithm
Authors: Abdulmunem Ashwan A. , Hassan Ahmed K.
Published: October 2019

Deblurring of X-rays digital images has always been a problem of crucial interest. A specific solution to the problem of image restoration is generally determined by the nature of degradation phenomena. So, it is highly dependent on the nature of the noise present there. In this work Lucy Richardson algorithm (LRA) is implemented on the X-ray image and deblurring is processes is observed. Deblurring is an important step of image processing especially when the diagnosis needs to be classified based on the result of X-ray image. LRA is an iterative procedure in which the pixels of the observed image are represented using the PSF. Image restoration is an emerging field of image processing in which the focus is on recovering an original image from a degraded image. The blurred image can be a result of a known degradation or unknown degradation. Hence image deblurring can be defined as a process of recovering a sharp image from a degraded image which is blurred by a degradation function, commonly by a Point Spread Function (PSF). The Point Spread Function describes the response of an imaging system to a point source or point object.
Survey of Hand Gesture Recognition Systems
Authors: Kadem Hamed Al-Saedi Ahmed , Hassin Al-Asadi Abbas H
Published: October 2019

Recognition of human gestures is an important subject in computer science, especially in computer vision and sign language. It aims at interpreting human gestures by mathematical models. Gestures originate from different parts of the human body, but the most common ones emerge from the hand or face. Gestures recognition is a method to enable computers to understand and interpret the language of the human body in the best way possible and to build a bridge between humans and machines from uncomplicated user interfaces that have been command-line to graphical user interfaces GUI, so far they limit the common input on the keyboard and mouse. In this paper, we have reviewed and analyzed several methods of recognition for hand gestures including, Artificial Neural Networks (ANN), Histogram based feature, a Fuzzy Clustering algorithm, Hidden Markov Model (HMM), Condensation algorithm and Finite-State Machine (FSM).
Task Scheduling for cloud computing Based on Firefly Algorithm
Authors: Ahmed Saleh Ibrahim , Ibrahim Alsaif Omar , Abduttalib Muhamed Sundus , Ibrahim Essa Essa
Published: October 2019

In this paper a new method proposed, to solve the problem of scheduling resources in cloud computing, it is using a parallel scheduling model which can enhance parallel tasks scheduling while the relationship among serial tasks stay constant. The important feature of dynamic tasks is provided by users to sub-tasks in serial sequences and arranged as scheduling queue, these tasks have different and equal priorities according to running order. In this paper firefly algorithm (FA) have been introduced for scheduling the subtasks in cloud computer to prove a progress in short delay time. The most important features that can be considered are fairness and efficiency characteristics. Delay time Shortest and Fairness firefly algorithm (DSFFA) applied to solve task scheduling problem that realized the shortest delay time, which improving the user satisfaction. Experimental results show that DSFFA algorithm is better than the task scheduling –Firefly algorithm (TS-FA) algorithm in fairness, efficiency and task delay time, therefor it can be realized for the optimal scheduling in cloud computing.
Oxidative coupling of Amoxicillin using 4-Aminoantipyrine: Stability and higher sensitivity.
Authors: Aljeboree Aseel M , Noor Alshirifi Abbas
Published: October 2019

Amoxicillin (AMX) is a semi-synthetic β-lactam antibiotic belonging to the group of penicillins. When ingested, it is partially (about 80–90%) excreted as chemically unchanged via faeces and urine into the domestic sewage and thence discharged to the wastewater treatment plants, which subsequently, removing this substance from the aqueous solution is important. Therefore, the aim of current study was to determine the effects of different optimum conditions of the oxidative coupling calorimetric methods for the quantitative determinations of Amoxicillin. Methods: Amoxicillin was determined via using colorimetric spectrophotometric method in the alkali medium and adding 4-aminoantipyrine to give a panic-colored chromophore which is spectrophotometrically estimated at 509 nm, at room temperature in the presence of ferricyanide ion. Beer’s law is observed in a concentration range 5-100 mgL−1 and linearity(r2=0.9994) according to the proposed conditions. Results: The best concentration of 4AAP was 0.3gm/100 ml and that of the oxidant was 0.3gm/100 ml at the same order. Conclusion: the best results of reagent 4AAP is 0.3g/ml to give high stability indeed highly more absorptivity to enhance measurements and reduce error.
Novel Cyclic Voltammetry Behavior Of 3-((Benzothiazol-2-Diazenylnaphthalene-2,7-Diol And Use It For Spectrophotometric Determination Of Iron (III )In Blood Sample
Authors: Khazal Fatma –A- , Jasem Mohammed Hussain , Khazal Hana
Published: October 2019

The azo reagent 3-((benzothiazol-2-diazenylnaphthalene-2,7-diol] was synthesized and characterized by FT-IR, 1H-NMR and 13CNMR spectral techniques. The electrochemical behavior of the azo reagent and its complex with Fe (III) has been studied at glassy carbon disk GCE electrode in different supporting electrolyte at concentration (1M) and scan rate (100mvs-1). Spectrophotometric determination of Iron (III ) is based on the formation of a 2:1 complex with above reagent. The complex has λmax at (576) nm and εmax of( 1.6451*104)L.mol-1.cm-1. A linear correlation (0.1 – 4.0 μg. ml-1) was found between absorbance at λmax and concentration. The effect of diverse ions on the determination of Iron (III) to investigate the selectivity of the method were also studied. The stability constant of the product was (3.098*108 ). The proposed method was successfully applied to the analysis of blood samples
Synthesis, Characterization and study biological activity of some Schiff bases derivatives from 4-amino antipyrine as a starting material.
Authors: Mahmood Yousif Al-Labban Hutham , Mohammed Sadiq Hawraa , Abduljabbar Jaloob Aljanaby Ahmed
Published: October 2019

This study includes formation Schiff bases compounds [A1- A3] were synthesis from raction4-aminoantipyrine with many aromatic aldehydes [4- chloro benzaldehyde, 4-bromo benzaldehyde and 2-hydroxy1-naphthaldehyde] in absolute ethanol. These compounds [A1-A3] has been characterized by melting points, [FT.IR] spectroscopy, thin layer chromatography technique (TLC) has been used for reactions steps and sequence by using solvent (ethyl acetate:toluene, 1:4). Antibacterial activity test was done according to agar well diffusion method against two types of multi-drug resistance of bacteria isolated from patients with infection of urinary tract. Three concentrations were prepared for each compound (50, 100 and 150) mg/ml. The results proved that derivative compound A3150 mg/ml provided the best antibacterial activity against K.pneumoniae with inhibition zone diameter 21± 0.25mm and against C.freundii 22± 0.5mm as compared with other derivatives compounds.
Environmental Assessment of Polycyclic Aromatic Hydrocarbon Concentrations in soil at AL - zubaidiya Thermal Power Plant.
Authors: Al-Rudaini Thamera K. M. , Almousawi Israa M. H. , Al-Sammarraie Abdulkareem M. A.
Published: October 2019

Polycyclic aromatic hydrocarbons (PAHs) were measured in soil samples, which collected for the period from January to August 2017, in Baghdad city, at AL-zubaidiya Thermal Power Plant. Soil samples were extracted by the soxhlet apparatus using mixture of acetone and hexane (1:1), and analyzed by GC/FID apparatus.The results show that the sixteen polycyclic aromatic hydrocarbon concentrations were varied in the two seasons. The most abundant compound in winter was naphthalene, while in summer season were naphthalene, acenaphthene, fluorene, pyrene and benzo[a]anthracene. The distribution of PAHs that have different aromatics ring, where the 2-rings are dominant in the winter season, while 2-rings, 3-rings, 4-rings are exists in summer season.
Effect of Kidney Dialysis on Some Biochemical Variance
Authors: Aljebory Abdulhussien M. K. , Al-Salman Tamadhur J. M. , Wahhab Razooqi Alasedi Halla , Yaseen Ali Beyi Alyaa
Published: October 2019

This study was conducted in Merrjan hospital in Babylon city during the period from September 2017 to march 2018. The patients were diagnosed as having renal failure for both sex based on the history, clinical examination and taking renal function test and need to under gowning haemodialysis. The control groups were volunteers; they were collected from medical staff and relatives, who were free from signs and symptoms of renal disease,

Fasting blood samples were taken from the patients (8-12) hours after night meal, the study shows the following results, a significant change in most biochemical variables and duration of dialysis
Synthesis and Spectroscopic study of some transition metal complexes with 2-(4-Iodo Phenyl Azo)-4,5- Diphenyl Imidazol
Authors: Ali Abid Allah M , Alabidi Hawraa M
Published: October 2019

This work deals with the preparation and identification of azo dye, 2-(4-Iodo phenyl azo)- 4.5-diphenyl imidazole (4-IPAI).The characterization of this ligand was done by elemental analysis is (C.H.N) mass spectra, Uv-vis. and IR techniques. The complexes of Co(II), Ni(II), and Cu(II) with (4-IPAI) have been prepared. The preparation were performed after fixing the optimum conditions of pH and molar concentration using Uv-Vis spectra of mixed solutions of the above ions with (4-IPAI). A wide range of pH and molar concentration in the ranges obeyed Lambert-Beers law were studies, and the stability (stability constant) were studied at optimum conditions of pH, molar concentration and mole ratio for all complex. The structure of these complexes were deduced according to the mole ratio method which were obtained from the spectroscopic studies of the complex solutions of the above ions. However ratio 1:2 metal: ligand were obtained. Uv-Vis absorption spectra of ethanol solution of the studied complexes showed bathochromic shift in the visible region compared with that of the ligand. The IR. Spectra of these complexes showed some changes in the band shape and density compared with those of the free ligands. New bands have been observed which may indicate that the coordinated with the metal ions. The elemental analysis (C.H.N) agreed with our results, the flame atomic absorption spectroscopy has also been used to determine the metal ion percentages. The percentages of metal ions were determined using flame atomic absorption spectroscopy, good agreement were obtained between the found and calculated percent values. Conductivity measurements have shown non-ionic character of complexes in ethanol and DMF solution. From all above observations the proposed geometrical structures of these complexes were octahedral [M(4-IPAI)2Cl2].
Physiochemical Studies of Some Amino Acidsin Aqueousand Acidic Mediaat Four Temperatures
Authors: Mahmoud Zeena Sh. , Salman Taghried A.
Published: October 2019

This work is concerned with the study of solute-solvent interaction of amino acids: [DL-Valine, DL-Methionine and L-Arginine] as solutes in water and in hydrochloric acid solution (0.1 mol.L.−1) as solvents. This study covered experimental measurements of partial molal volume from precise density measurements using Anton Paar (DMA 60/602) densimeter, as well as theoretical calculations concerning partial molal volume, and some related parameters, a comparison and discussion was made in the light of these measurements. Measurements of the dynamic viscosities of amino acids solutions have been done over concentration variation from (0.04-0.2 mol.L.−1) at four temperatures in the range of (293.15-308.15)K. The resulting data have been utilized to verity the validity of Jones and Dole equation, and the viscous behaviour of the systems have been interpreted with regard to the contributions of the various viscosity components and the arrangements of solvent molecules. It was found that B-coefficient of amino acids in this study flow the order: Methionine >Valine > Arginine > This study clarifies that each of B-Coefficient, Partial Molal Volume, Van der Waal’s Volume and Effective Flow Volume can be considerd as parameters to account for solute-solvent interaction