bluuebunny/crossref_metadata_2025_split huggingface dataset:
Laboratory Test and Numerical Simulation for Geotextile Bag with Sand Cofferdam of Immersed Tunnel
Authors: He Zegan , Wei Lixin , Yang Chunshan , Chen Junsheng 
Published: August 2019

Abstract
The mechanical indexes of the geotextile and filling sand were obtained by laboratory test based on geotextile bag with sand cofferdam of Zhoutouzui immersed tunnel in Guangzhou, and a fine calculation model was established. The deformation development law of geotextile bag with sand cofferdam was explored by refined numerical calculation. Combining with the existing research results, the deformation mechanism was determined. Numerical results were verified by theoretical analysis and the control index of design and construction was proposed. The results show that cofferdam moves to the side of dry dock under the action of unbalanced pressure, and the displacement decreases from the top to the bottom. Cofferdam appears settlement under gravity and pumping action as well as the displacement increases with the pumping water level decline. The main reason of cofferdam’s large deformation is density increase caused by dewatering, which increases overlying pressure from upper geotextile bag to lower one and makes geotextile flattening deformation. Foundation soil experiences vertical pressure consolidation, lateral extrusion and local sliding, which causes the maximum and minimum deformation present to the top and toe of geotextile bag. The cofferdam has no sliding failure and is in overall stability as well as the numerical results are consistent with results deduced by theoretical analysis, so the cofferdam should take the height as the control index.
Vacuum Switch Contact Position Detection Based on Labview
Authors: Ma Liting , Wang Zhengqi , Su Chong 
Published: August 2019

Abstract
Arc shape of vacuum switch is one of the main influencing factors of the breaking performance of vacuum switch. The contact opening distance directly affects the development of arc shape. How to accurately detect the real-time position of the contact and calculate the contact distance is of great significance. Therefore, based on Labview virtual instrument technology, a software and hardware system for real-time position detection of contacts for vacuum interrupter is designed. The system collects the arc image during the vacuum switch opening process by high-speed camera, and then uses the virtual instrument development platform Labview as the programming software to process the arc image and analyze the edge features. Finally, the edge information detected is used for fitting, to realize pinpoint of the moving and static contacts. The experimental results show that the detection system can accurately detect the real-time position of the contact. It has the characteristics of high detection efficiency, stable operation and easy operation. The detection results provide technical support for analyzing the vacuum switch arc shape.
Application of New Dressing to Post-operation Skin Flap Necrosis in Breast Cancer Patients Damlms Scot and Vibas Cross
Authors: Qu Liying , Zhou Jianping , Sun Guang 
Published: August 2019

Abstract
Purpose: to discuss the application and effects of new dressing to post-operation skin flap necrosis in breast cancer patients. Method: 20 breast cancer patients with post-operation skin flap necrosis were selected and assigned to the test group and controlled group. Silver ion dressing and moist healing theory were applied in the test group, while a traditional dressing change method was applied to the controlled group. Two groups were compared to each other in terms of incision healing time, number of dressing changes and treatment expense. Results: the test group is better than the controlled group in terms of incision healing time, number of dressing changes and treatment expense. Conclusions: compared to traditional dressing change methods, good effects can be achieved by treating the post-operation skin flap necrosis in breast cancer patients with silver ion dressing and moist healing theory. Skin flap necrosis causes the healing of the incision to be delayed. Necrotic tissues are plenty, number of dressing changes and duration are increased, repeated removal of gauze causes the wound to bleed and relatively large scars remaining after the healing of the wound surface are sometimes accompanied with dysfunction and this causes extremely physical and psychological pains and great economic burden to patients.
Nonlinear Vibration Analysis of Generator Rotor of a Military General Mobile Power Plant
Authors: Li Xiaoquan , He Jiangjiang , Zhao Yuwei , Cheng Yuemeng 
Published: August 2019

Abstract
The generator is the core component of the military general mobile electric power plant. In general, the rotor of generator has different degrees of eccentricity which affect the operation and even cause system failure. To explore the vibration characteristics of the rotor, the rotor of generator is taken as research object. A Jeffcott rotor system with cubic terms is established and reduced to Duffing equation. The multi-scale method is used to solve the first approximate solution of the forced vibration. The amplitude-frequency, phase-frequency response equation and the resonance conditions are obtained. The influence of different mechanical parameters on the lateral vibration and the main resonance of the system are studied: eccentricity and the stiffness have little effect on the amplitude variation, but have a great influence on the stability region; the main resonance frequency and the excitation change the magnitude of the system common amplitude value; the damping not only has a great influence on the common amplitude value, but also changes the response and phase.
Scheduling of Single Machine with Release Date to Minimize Multiple Objective Functions
Authors: Cheachan Hanan A , Ibrhim Manal H , Mohammed Hussam A A 
Published: August 2019

Abstract
The aim of this paper is to derive several upper bounds and a lower bound, these bounds to be used in a branch and bound method. Because of the computational complexity of the our problem, optimal and near-optimal solutions are obtained by developed algorithms. All algorithms are tested and computational experiments is given in tables.
The Action of some Subgroups of Symmetric Group S3n on An Invariant Markov basis
Authors: Mohammed Hussein Hussein S. , H. Majeed Abdulrahman 
Published: August 2019

Abstract
In this paper, we will find some subgroups H_1 and H_2 of symmetric group S_3n, n∈N and n≥2, such that the Markov basis B is H invariant for (25n^3-66n^2+41n) ×3×n - contingency tables with fixed two dimensional marginal, where B is the Markov basis. We will get another 3×n - contingency tables have same the Markov basis B by using the action of H on these contingency tables.
Development of the Interfaces for the Nonlinear Reaction-Diffusion equation with Convection
Authors: Abdulla Ugur G. , Aal-Rkhais Habeeb A. 
Published: August 2019

Abstract
We study the initial development and asymptotics of the interfaces and local solutions near the interfaces for the nonlinear reaction diffusion convection equation with compactly supported initial function. Depending on the relative strength of three competing terms such as diffusion, advection or absorption, the interface may shrink, expand or remain stationary. In this paper we focus only on two cases when the diffusion dominates and the interface expands and the other case when absorption term dominates and the interface shrinks. The significant methods that we used are rescaling and blow-up techniques.
Some Estimation Methods for New Mixture Distribution with Simulation and Application[c]
Authors: Mohammed Maysaa Jalil , Hussein Iden Hasan 
Published: August 2019

Abstract
In this paper, we investigate the New Mixture Distribution with discussion its studied mathematical and statistical properties. The classical methods (maximum likelihood, ordinary least square, and rank set sampling methods) are used to estimate the parameters of New Mixture with comparison between them using the mean square error for different sizes of simulation samples generated. Finally, we illustrate the usefulness of proposed by application of complete real data.
Fuzzy Topological Spectrum of a KU-Algebra
Authors: Kareem Fatema F. , Ali Reyadh.D. , Mostafa Samy M. 
Published: August 2019

Abstract
In the present paper, discuss the concept of fuzzy topological spectrum of a bounded commutative KU-algebra and study some of the characteristics of this topology. Also, we show that the fuzzy topological spectrum of this structure is compact and T1 -space.
Semi Eh-b-preinvexity and its applications to optimization problems
Authors: Majeed S N , Enad A A 
Published: August 2019

Abstract
In this paper, the class of semi E

h
-b-preinvex and pseudo E

h
-b-preinvex functions are defined as an extension of E-B-preinvex and h-preinvex functions. In this extension the functions E:ℝ
n
→ ℝ
n
, h: [0,1] → ℝ, and b:ℝ
n
× ℝ
n
× [0,1] → ℝ+ are taken into consideration. Various properties for the new functions as well as some properties and characterizations of quasi semi E-preinvex functions are discussed. Some optimality properties for semi E

h
-b-preinvex nonlinear optimization problems are proved.
On Estimation of the Stress – Strength Reliability Based on Lomax Distribution
Authors: Salman Abbas Najim , Hamad Alaa M. 
Published: August 2019

AbstractThe present paper concerns with the problem of estimating the reliability system in the stress – strength model under the consideration non identical and independent of stress and strength and follows Lomax Distribution. Various shrinkage estimation methods were employed in this context depend on Maximum likelihood, Moment Method and shrinkage weight factors based on Monte Carlo Simulation. Comparisons among the suggested estimation methods have been made using the mean absolute percentage error criteria depend on MATLAB program.
Survey of fungi found in books on the shelves of the libraries of the University of Qadisiyah – Iraq
Authors: Alshibly Majid Kadhim , zamily Ihsan ali al , Fazil Noor 
Published: August 2019

Abstract
The study included a survey of the fungal pollutants prevalent in the libraries of the University of Qadisiyah. The study included the Central Library and the Library of the Faculty of Science, Education, Literature, Veterinary Medicine, Law, Administration and Economics. For the purpose of study swabs were taking from Books on the library shelves. Wipes were cultured on the Sabouraud Dextrose Agar (SDA) medium and incubated at 25 ° C for one week to observe and diagnose growth. The results showed that there was contamination in the books in the libraries mentioned above. The Faculty of Science library was the most polluted, followed by the Central Library. The dominant fungi were Aspergillus, followed by Pnicillium, Rhizopus, Alternara and Fusarium. The effect of antiseptics on this isolated exhibited in the libraries mentioned above was examined by using Formalin, Dettol, Hydrex, Povidon and Povidon-Iodine. The results shows that there is a danger to the workers and those who return to the libraries, which confirms the existence of an urgent need to prevent the danger of these fungi and find effective solutions.
Physiological study of the effect Astaxanthin (shrimp extract ) on some biochemical markers in male rats induced by Formaldehyde
Authors: Abd AL-Shaybany Thafar Najim , AL-Dujaili Arshad Noori 
Published: August 2019

Abstract
The present study was conducted to show the protective and treated effects of astaxanthin in male rats induced by formaldehyde. The total numbers of male rats include ninety one (91) males, weighing (190-300) mg, aged (15-17) weeks. The animals were housed in animal house of college of science / University of Kufa from period February 2018 to July 2018. The animal were divided into two groups protective group total male rats were (36) and treated group (55) male rats.
The result sowed a significant increase (p< 0.05) in Asparatate tranasaminase(AST), Alanine transaminase(ALT) and Alkaline phsphatase (ALP) levels in formaldehyde group whene compared with control group and significant decrease (p< 0.05) in protective and treated groups of astaxanthin 250 and 500 mg/kg as compared with control group and formaldehyde groups. The study of biomarkers also showed a significant increase (p< 0.05) in Regucalcin(RUG), 8-hydroxy-2 deoxyguanosine(8-OHGD) and Myeloperoxidase(MPO0 levels in formaldehyde group as compared with control group and showed a significant decrease (p< 0.05) in all biomarkers when compared of astaxanthin & formaldehyde with formaldehyde group and non-significant difference (p<0.05 when compared with control group. The present study roles of Astaxanthin asprotective and treatment were documented by decrement by liver enzyme AST,ALT and ALP also some biomarkers also Creatinine after increment by formaldehyde.
Estimation of chemical components and caloric values for muscles of some local fish in Karbala province, Iraq
Authors: AL-Muhanna Mohammed W.H. , Mansour Akeil Jameil , AL-Asadi Sarmad A. M. 
Published: August 2019

Abstract
The present work aimed at conducting a comparative study of the chemical components of the muscles of four teleosts in two different regions of each Coptodon zillii belonging to the Cichlidae and members of Cyprinidae, Carabarbus luteus, Cyprinus carpio and Cyprinion macrostomum. This study concentrated on the determination of differences in the values of the chemical components of the muscles and calories for protein and lipid contents. In addition to this, it concentrated on the determination of the nutritional value of the studied fish. Samples were collected between November / 2018 and January / 2019 from Al-Hindiyia market in Karbala province, Iraq. The results showed that the protein content was higher in the region 1 (R1] compared to the region 2 (R2] while the lipid content of the R2 was higher than that for the R1. These results were associated with the red muscle ratio in the two regions. The total protein content was recorded 19.69% in C. zillii, 25.42% in C.luteus, 21.92% in C. carpio and 23.51% in C.macrostomum while the total lipid content was 4.25% in C. zillii, 2.23% in C. luteus, 4.10% in C. carpio and 6.42% in C. macrostomum. Therefore, the statistical results indicated significant differences (P<0.05] between the studied species in protein and lipid contents, while the differences were not significant (P>0.05] among the C.zillii, C.luteus and C.carpio in the values of moisture content and between the C.luteus and C.macrostomum in ash content values. According to the lipid content values in the studied fish muscles, the C. luteus fish (2.23%] were in a low-lipid fish while the C.carpio (4.10%], C.zillii (4.52%] and C.macrostomum fish(6.24%] were in a medium-lipid fish.
Effect of use aggregation pheromone to reducing the amount of pesticides that needed to control American cockroaches Periplaneta Americana (L). ( Blattodea : Blattidae)
Authors: Jawad Al-Qazwini Yarab Modhar , Al - Essa Rafid Abbas 
Published: August 2019

Abstract
The results indicated the effectiveness of Aggregation pheromone to reducing the amount of toxic substance to environment by mixing the pesticides with pheromone and less than recommended rates and gave effective results. The results indicated that the treatment of adult foods with Maxforce,insect growth regulator( Applaud)and Neem oil in different concentrations had an inverse relation between the concentrations used and the time duration needed to adult mortality. The results confirmed that the addition of the Pheromone Extract to the Pesticides had the effect of reducing the amount of the toxic substance entering the environment as well as reducing the time required for killing. The results indicate the adult mortality percentage of american cockroches when using 1 g of Maxforce reached to 100% after 12 days compare with two days when added 0.5ml.aggregation pheromone with pesticide that used.
TiO2 Nanoparticles Sensitized by Safranine O Dye using UV-A Light System
Authors: Jasim Khlowd Mohammed , Ahmed Luma M. 
Published: August 2019

Abstract
This study examined the photocatalytic decolorization of safranine O dye by using TiO2 nanopowder as a photocatalyst, under illumination with using artificial UV-A-light. The behavior of this reaction was pseudo first order and the maximum of removal was 88.176% in 100 min. at 30°C. The increased of reaction temperature enhances the photoreaction, with positive ΔH that equal to 20.552 kJ mol−1 and given low activation energy reach to 22.609 kJ mol−1. The Fenton reaction was applied in aqueous solution of this dye with the using TiO2 nanopowder and given maximum photo decolorization efficiency.
Vertical Growth Multi- Walled Carbon Nanotubes by the Catalytic Chemical Flame Deposition Method from Coal/Kerosene
Authors: Mohamed A. J. , Ibtesam A. , Firas H. A. 
Published: August 2019

Abstract
Multi- walled carbon nanotubes MWCNT were synthesized with vertical aligned V-MWCNT from mixture coal/kerosene/sulfur by the catalytic chemical flame deposition method CCFD with using homemade reactor. The condition of precipitation was accrued at 413 K in limited atmospheric oxygen with using sulfur as catalyst to enhance precipitation. The process of synthesis showed mixture of Coal/Kerosene did not produce MWCNTs without using sulfur. The product were characterized by X-ray diffraction analysis XRD, Raman spectroscopy, and scanning electron microscopy SEM. The analysis showed that multi-walled carbon nanotubes were growth vertically with length reach to more than 1.75 μm and diameter 4053 nm.
Influence of Some Nano-Inorganic Oxides on the Mechanical Properties of Epoxy Based Nano Composites
Authors: Shayea Iman Shuaib , Ugal Jalil R. 
Published: August 2019

Abstract
Epoxy nano composites were prepared using CuO, Fe2O3, and MgO as additives. Some mechanical properties (Tensile strength, Elongation%, Impact and Hardness) were measured These additives are capable to improve the mechanical properties for the resulting nano composites (in low percentages) such as tensile, impact, and hardness, while at the higher percentages the mechanical properties were reduced due the agglomeration of the additives.
Electropolymerization of N-Salicyly tetrahydro phthalamic acid for anticorrosion and antibacterial action applications
Authors: Ali Mayasa I. , Saleh Khulood A. 
Published: August 2019

Abstract
Poly (N-salicyly tetrahydrophthalamic acid) (PSP) synthesized from corresponding monomer N-salicyly tetrahydrophthalamic acid (NSP) in aqueous solution by using electrochemical polymerization process at room temperture. The polymeric film formed on stainless steel (316) surface (working electrode) and its structure examined by Fourier Transmission Infrared Region (FTIR). The anticorrosion action of the polymeric film on stainless steel (S.S316) was studied by using electrochemical polarization method in 0.2M HCl solution and temperature range (293-323)K. Kinetic and thermodynamic of activation parameters for corrosion process of S.S were calculated. The biological activity of polymeric film determined toward gram positive bacteria which is Staphylococcus aureus (Staph.Aure) and negative bacteria which is Escherichia coli (E.Coli). The effect of nanomaterials was studied by adding to the monomer solution in different concentrations to increase the efficiency of polymeric film as anticorrosion and antibacterial. The nanomaterials used in this study which are Graphene (G) and Zinc Oxide (nano) (ZnOn).
Enhance the Growth of Multi- walled Carbon Nanotubes from Coal by Catalytic Chemical Flame Deposition
Authors: Yassin Safa A. , Al khazraji Abdulqadier H. , Abdulrazzak Firas H. 
Published: August 2019

Abstract
Multi- walled carbon nanotubes were synthesized by catalytic chemical flame deposition CCFD by magnesium as a catalyst for growth from coal/kerosene/sulfur with ratios 4 / 1.3 / 1 respectively. The CFD was more efficiency with the magnesium as a catalyst, which led to increasing MWCNTs growth as compare with growth without a catalyst. The synthesized MWCNTs were characterized by X-ray diffraction, Raman spectroscopy and scanning electron microscopy which showed high dense with length growth. The diameters of tubes were more homogenous when precipitation on the surface of Mg with diameter 39-57nm while 31-64 nm without a catalyst.
Study the Effect of Cyperus Rotundus Extracted as Mouthwash on the Corrosion of Dental Amalgam
Authors: Abbas Hayfaa Abdulameer , Saleh Alsaade Khulood Abid , Yousif AlMAshhdan Haider Abdulkareem 
Published: August 2019

AbstractMany extracted material were used as mouthwash to settle different kinds of oral fungi and bacteria. In this study an extractive of Cyperus rotundus plant E.C.R. which is very active as a mouthwash, was used in concentration range (10-25) ppm in artificial saliva at pH=6.4 and temperature range (288-318) K, to study it’s inhibitory effect on the corrosion of dental amalgam. Potentiostatic and cyclic polarization were used to follow this study. The presence of E.C.R. lead to shift the corrosion potential to the active direction and decreased the corrosion rate to about 98.87%, the inhibition action of E.C.R. resulting from the adsorption of C.R.E. layer between amalgam and saliva as FTIR spectrums shows, where the variety of FTIR adsorption of many group were noticed for the free E.C.R. and adsorbed E.C.R. layer. Thermodynamic of adsorption, corrosion kinetic parameters were also investigated.
Synthesis of New Aromatic Azo-Schiff Compound as Carbon Steel Corrosion Inhibitor in 1 M H2SO4; High Efficiency at Low Concentration
Authors: Salman Hamida Edan , Balakit Asim Alaa. , Abdulridha Ali Ahmed , Makki Sajjad Q. 
Published: August 2019

Abstract
Schiff base derivative (AS) namely (4-((E)-(4-hydroxy-3-((E)-(phenylimino) methyl) phenyl)diazenyl)benzonitrile) was synthesized and tested as corrosion inhibitor for the carbon steel alloy in 1M sulphuric acid at different concentration (0.005, 0.01, 0.02, 0.04 and 0.08 mM) over temperature rang (303-333) K. Potentiodynamic polarization, weight loss, atomic force microscopy (AFM) and scanning electron microscopy (SEM) techniques have been used in the study. The results revealed that the inhibition efficiency increases as inhibitor concentration increases and decreases with the increasing the temperature. The maximum inhibition recorded efficiency 98% and 97.5% by potentiodynamic polarization and weight loss methods respectively at 303 K in the presence of 0.08 mM of AS.
Ecorr
values Proof that AS act as mixed type inhibitor. Adsorption isotherm of AS on the carbon steel surface obeys Langmuir adsorption isotherms model.
Study of the Corrosion Inhibitive Effect and Adsorption Process of Two Azo-Aldehydes on Carbon Steel in 1 M H2SO4
Authors: Salman Hamida Edan , Balakit Asim A. , Albo Hay Allah Mahmood A. 
Published: August 2019

AbstractTwo aromatic aldehydes with azo linkage(AS1andAS2)were assessed for their inhibitive effect on carbon steel corrosion in 1 M H2SO4. The inhibition efficiency was studied by gravimetric and electrochemical analysis. The effects of concentration and temperature on the inhibition efficiency have also been studied. The obtained results showed that both of the used compounds can be considered as efficient carbon steel corrosion inhibitors. The compound which has methyl group in its structure(AS2)has higher inhibition efficiency (93.11% with 0.2 mM at 303 K by electrochemical analysis) than the one with cyano group(AS1).The adsorption isotherms of the inhibitors were studied; it was found that the adsorption of the two compounds obeys Langmuir isotherm. The studied inhibitors are mixed type inhibitors and adsorbed onto the surface of the carbon steel by a physisorption process. SEM and AFM techniques were used to study the effect of the aggressive solution on the morphology of the metal surface in the absence and presence of the used inhibitors.