bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study of stress-strain behavior of a compressed elastic strip
Authors: Minayeva N V , Gridnev S Y , Skalko Y I , Sabynin D V 
Published: May 2020

AbstractThe paper considers the plane strain of a compressed elastic strip made from incompressible material. The deviation of the cross-section contour from the rectangle, as well as the intensity of the force applied to the upper and the lower edge of the section are known up to small parameters. The authors have carried out a study of the problem solution analyticity with respect to small near zero parameters. With the help of the perturbation method, they have found a solution for a particular case of the function describing the deviations up to the second order of smallness. It has been shown that if an experimental research is carried out and the applied force meets the condition described, the average stress and displacement values will differ from those typical for homogeneous state only by a second order infinitesimal.
Evaluation of the optomechanical effect in coatings made of photopolymers
Authors: Murashkin E V , Popov A L , Kozintsev V M , Chelyubeev D A , Chentsov A V 
Published: May 2020

Abstract
The study on the optomechanical effect (photostriction) in the material used in 3D printing by layer-by-layer photopolymerization is performed. The calculation - experimental model in the form of a steel console plate with the one-sided photopolymeric coating is developed for studying of this effect. The experimental setup including UV source, the set of irradiated identical consoles, part of which had the photopolymer coating, the speckle-interferometer device for registration of bending micro displacements of the consoles called by photostriction shrinkage of the coating, is collected. The temperature bending of the plate during is irradiation by the UF-source was determined. The Magnitude of the optomechanical shrinkage in comparison with the temperature bending of the plate with a photopolymeric coating at the fixed radiation time is experimentally determined. The technique is developed for calculation and allocation of the optomechanical effect against the background of temperature bending of the plate with a photopolymeric coating and value of earlier undetermined coefficient of linear dilatation of the photopolymer is obtained. Also the residual stresses which generate in the coating owing to optomechanical effect are defined.
Waveguide modal analysis of the ultrasonic medical instrument
Authors: Phyo Aung Pyae , Yuri Vsevolodovich Grigoryev 
Published: May 2020

Abstract
Numerical procedure for analysis of eigenfrequencies and eigenfunctions of ultrasonic medical instrument waveguide is presented. A curved beam of variable cross-section is considered as a design scheme for the waveguide with respect to different boundary conditions. Test analysis for clamped-free curved waveguide is developed with MathCAD complex.
A model of dynamic reflection of a longitudinal shear crack from a stressed boundary
Authors: Bykova M I , Verveiko N D , Shashkin A I , Krupenko S E , Nekrasova N N 
Published: May 2020

Abstract
The modeling of the phenomenon of reflection of the front edge of a longitudinal shear crack from a stressed boundary is considered. The front edge of crack is modeled by an extreme along the edge rupture of rates and stresses exceeding the plastic limit propagating as an orthogonal trajectory of a longitudinal wave of plastic loading. The dependence of the intensity of the reflected cracks of a simple shear and detachment (as a function of the angle of incidence of the initiating crack) on the stress at the boundary at the moment of reflection and on the physical constants of the material is investigated. The conditions for the absence of reflected cracks of shear and detachment and criteria for boundary stresses initiating the cracks of various types are obtained.
Calculating stress intensity factor for high-velocity crack
Authors: Belaya L A , Lavit I M 
Published: May 2020

Abstract
In this paper the earlier elaborated finite-element method of calculating the stress intensity factor for stationary cracks at dynamic loading by means of cohesion finite elements and on the basis of the method of lines is generalized for high-velocity cracks. The method in question does not require rearranging the finite-element mesh. The crack growth is modeled by consecutively releasing the nodes located on the crack line. The calculated data are compared with the analytical solutions of other researchers and with the experimental data.
Combining the method of boundary states and the Lindstedt–Poincaré method in geometrically nonlinear elastostatics
Authors: Penkov V B , Levina L V , Novikov E A , Novikova O S 
Published: May 2020

Abstract
The study considers a statement of geometrically non-linear problems of isotropic theory of elasticity for a simply connected bounded body. The Lindstedt–Poincaré method reduces the problem to a weakly non-linear variation containing a small parameter. The solution is then effected at each step of the perturbations method through the means of the method of the boundary states with perturbations (MBSP). Each iteration is accompanied by a generation of fictitious volume forces of a polynomial nature. The study proposes a strict particular solution and a solution of an elasticity problem for iteration. The approach is also applicable to thermoelasticity problems. The method is tested on classical axially symmetrical bodies, i.e., cylinders subjected to uniaxial tensioning or twisting. The study confirms the applicability of flat section hypotheses to linear engineering calculations. Nonlinear distortions mostly happen at the first iteration, followed by a weak correction. We also provide a calculation for and an illustration of a stress-strain state (SSS) of a semicylinder under unbalanced axial loads and a concentration of compression stresses in extended bodies’ middle areas that are remote from load-free surfaces.
Determining the type of initial anisotropy of elastic material from a series of experiments
Authors: Khristich Dmitrii , Sy Toan Nguyen , Sukhorukov Dmitrii 
Published: May 2020

Abstract
An experimental program has been developed to identify the type of initial elastic anisotropy of the material. The program includes a series of compression experiments to determine the orientation of the principal axes of anisotropy of the material and additional experiments to find the orientation of the canonical axes of anisotropy. In order to distinguish isotropic and cubic materials, it is necessary to fulfill an experiment on biaxial tension-compression in the direction of two canonical axes of anisotropy, and a shear experiment in the same plane. Similar experiments make it possible to identify trigonal, tetragonal and hexagonal materials. To identify triclinic, monoclinic, and rhombic materials, three shear experiments in planes determined by the canonical axes of anisotropy are required.
One example of image digital processing of experimental data obtained by the method of photoelasticity
Authors: Kosygin A N , Kosygina L N , Usacheva V N 
Published: May 2020

Abstract
The article is devoted to the digital processing interferograms (isochromatic fringe patterns) obtained by the photoelasticity method. The application to interpretate the isochromatic fringe patterns allows us to automate image processing, gets to avoid the routine and time-consuming work. The features of the developed software package are described in detail by means the problem of stretching plate with two symmetrical edge notches. The application’s algorithm includes following main steps: image pre-processing, localization interference fringe, fringe tracing. The application creates a text file containing all the necessary data to further determine the stress-strain state (isochromatic fringe’s number and locus of fringes).
Betweenness centrality in corona product of Knand Cmgraph
Authors: Haryadi T I , Susilowati L 
Published: May 2020

AbstractThe concept of betweenness centrality is currently widely used in network analysis such as computers network and social network. Betweenness centrality is one of the concepts developed in graph theory. The concept of betweenness centrality discusses the magnitude of the potential of a point in influencing a network. A pointxhas the potential to affect the network if it is in the shortest path between a pair of two other points. In this paper, the concept of betweenness centrality will be integrated with the product of corona operation in graph. Corona is one of the operations in graph theory. This operation works between two graphs by multiplying the second graph and connecting with the first graph. This paper will investigate the concept of betweenness centrality in graph resulting from corona operations ofKnandCmgraph.
Hp-discontinuous Galerkin Finite Element Method for Incompressible Miscible Displacement in Porous Media
Authors: Abdul-Khaliq Kashkool Hashim , Jaaywel Saadoon Jawad 
Published: May 2020

Abstract
We used (hp-DGFEM) for solving the coupled system of incompressible miscible displacement problem in porous media. Flow and transport equations are solved by hp-symmetric interior penalty Discontinuous Galerkin (hp-SIPG) method. We prove the error analysis in the energy norm to the coupled system of incompressible one-phase flow problem.
Design and development of a web traffic analyser
Authors: Ali Salim M , Neamah Mustafa A 
Published: May 2020

Abstract
This paper focuses on web traffic analysis; we explore the complexity of modern web pages by tracing network packets for the types of objects requested when loading a web page. Furthermore, web pages are not analogous to each other, their design and implementation relies on the purpose of the website. Similarly, web pages that are designed for a specific area, say e-commerce, would have the same development process, which then reflects on the code and objects used to develop such websites. This will lead us to a speculation that web surfers who have similar intention of browsing, they will have similar web traffic in terms of number of different objects and the total size of data transferred through the network. Conversely, inspecting the type, size and number of objects within the browsing session will show us an approximate of what the users’ intention to browse or like to browse next.
Effects of Impulse Noise on Massive MIMO
Authors: Yousif Dawod Adnan , Fakhrulddin Abdulqader Mohammed , Saad Hameed Saif 
Published: May 2020

Abstract
The usage range of nowadays wireless communications become wide, all of the develop applications uses wireless communication which improve the mobility and improve the mobility of the network subscribers. As known that the antenna diversity scheme developed from “SISO” to “MIMO” that has a maximum capacity and ability to improve the communication quality with a good shields among the fading effects and other impairments. In this research work study and analysis to the antenna systems and antenna schemes was done taking into consideration the central antenna system and the distributed antenna system “CAS” and “DAS”. A Matlab simulation was developed to test antenna configuration system in term of effeteness of fading channel while using different modulation order.
On J–Lifting Modules
Authors: Kabban Ali , Khalid Wasan 
Published: May 2020

Abstract
Let R be a ring with identity and M is a unitary left R–module. M is called J–lifting module if for every submodule N of M, there exists a submodule K of N such that

M
=
K
⊕

K
′

,

K
′

⊆
M

and

N
∩

K
′

≪
J

K
′

. The am of this paper is to introduce properties of J–lifting modules. Especially, we give characterizations of J–lifting modules.We introduce J–coessential submodule as a generalization of coessential submodule . Finally, we give some conditions under which the quotient and direct sum of J–lifting modules is J–lifting.
Early Prognosis of Human Renal Cancer with Kaplan-Meier Plotter Data Analysis Model
Authors: Almansouri Saif , Zwyea Susan 
Published: May 2020

Abstract
Clinical data analysis is one of the powerful learning methods in cancer research. Several analysis methods have been used for detection purposes in computational pathology. However, little information is known about the model features. Here, we described Kaplan-Meier plotter analysis model as a powerful tool with new features. The model combines fellow up threshold, disease stage, and race to ensure better validation for genes as prognostic biomarkers in early disease stages. The proposed model is evaluated for the relevance role of Rab1A, an oncogene, in renal cancer early prognosis on the benchmark datasets from The Human Protein Atlas. We found Rab1A overexpression in human renal cancer has potential role in early prognosis of the disease and it is associated with poor prognosis (p<0.05). Our model results were also confirmed in an independent dataset in The Human Protein Atlas. Together, our studies emphasize the role of Rab1A in human malignancies and identify Rab1A as a new prognostic predictor for human renal cancer.
On small (T-extending) module
Authors: Rzaij Mohammad Zainab , Mahmood Yassin Sahira 
Published: May 2020

Abstract
Let R be associative ring with identity and let N be a left R-module . We introduce the concept of small T-extending module. Let T be a submodule of a module N. We say that N is ST-extending module (ST-extending), if every submodule of N which is contains T is small T-essential in a T-direct summand of N. And some basic properaties of this concept.
On Micro-α-Open Sets and Micro-α- Continuous Functions in Micro Topological Spaces
Authors: Rasheed Reem O. , Jasim Taha H. 
Published: May 2020

Abstract
The principle point ofithis paper is to present new type of topologicalispaces are introduced by nano topology and so on Nano topology introduced by Thivagar using this nano topology we introduced micro topology and also introduce new type of open sets namely of Micro-α-open sets furthermore, a portion of their properties are researched. As application to Micro-α-open sets we introduce Micro-α-continuous functions also, get a portion of their essential properties
Coarse WDM in Metropolitan Networks: Challenges, Standards, Applications, and Future Role
Authors: Maad Hamdi Mustafa , Audah Lukman , Abduljabbar Rashid Sami , Al-Mashhadani Mohammad A. 
Published: May 2020

Abstract
Coarse Wavelength Division Multiplexing (CWDM) denotes a technology of diaphanous transport which aids to transmit simultaneously a large number of services across a single optical fiber. This technology relies on the usage of optical channels which are 20 nm from each other. These channels are employed in the CFO OPX products, which ranged from 1270 nm until 1610 nm, had been set in ITU-T G - 694.2 recommendations. ITU-T managed to determine 18 optical channels together, though 16 only are used in reality, in the case of using the two lowest channels which are avoided because of the excessive-high attenuation of glass. However, the review study presented in this paper deals with the CWDM technique as the best choice in decreasing capital expenditure after taking into consideration the simplicity of design, the capability of expanded transmission, low cost of components and reduction in operational cost. The paper also focused on the standards, applications and future role of the CWDM technique.
Solving Three-Dimensional Groundwater Recharge Based on Decomposition Method
Authors: Kareem Z H , Tawfiq L N M 
Published: May 2020

Abstract
In this paper the mathematical model of moisture content in soil have been designed in the form of three-dimensional nonlinear PDEs. The analytical solution of model equation has been obtained by using the combine LA-transform with decomposition method. The accuracy and efficiency of suggested method is illustrated by three problems.
Capacity analysis & performance comparison of SISO, SIMO, MISO & MIMO systems
Authors: Alrubei Mohammed A. T. , Alshimaysawe Ihsan A. , Hassan Ashwaq N. , Khwayyir Ali H. K. 
Published: May 2020

Abstract
Today trade wireless communication systems are wanted to equip reliable communication and bigger data rates. Two considerable challenges in system design are the restricted fading and spectrum due to multipath components in the wireless system. Multiple transmission and reception can be used to form (MIMO) multiple input multiple output channels to raise the data rate and capacity. The advantages of utilizing multiple antennas are to get reliable performance and a higher data rate. In this paper, an attempt is made to design and simulate SISO, SIMO, MISO and MIMO systems. We have analyzed and compared the performance of these systems based on SNR and channel capacity in a different number of an antenna. The effect of the number of an antenna (4, 8, and 16) on the channel capacity over a range of SNR (0-30db) for the systems is examined. The system performance is simulated in Matlab. The results of the simulation show that as significant improvement in the capacity of systems reached dramatically to 214 (bits / Hz / Sec) when SNR = 30 and (16X16) MIMO is used.
Simulate a first-order Bézier curve in image encoding
Authors: Abdul Hameed Jassim Al-kufi Mohammed , Kadhim Ola N. , Saleem Razaq Eman 
Published: May 2020

Abstract
Bézier curve of the first rank is a simple equation in terms of form, but it is characterized by the nature of private transactions making it difficult to use in image encryption because the dispersion of color values is not enough, this results in an encrypted image that gives clear references to the original image. This weakness in the equation does not exist in the case of text encryption where enough to change the numerical values of the components of the text to get a digital matrix representing the encrypted text.Through this algorithm we have used the Bézier curve technique from the first order of image coding we used a new method to generate the coefficients of the equation where we simulated the Bazier equation where it became as follows:
• y=x_1*(t-1)+x_2*t
• Where 0<t<1
To illustrate the work of this technology in image encoding the core of our work is in choosing a vector (1 × 4) with four numerical components )k_1, k_2, k_3, k_4 ( So that k_1<k_2 and k_3 <k_4, k_1 and k_2 have the same signal, as well as k_3 and k_4 also have the same reference to give them t_1 and t_2 Where t_1=k_1/k_2 and t_2=k_3/k_4 which will ensure that both have t_1 and t_2 have positive values less than 1. We have thus designed the equation of Bézier curve suitable for a scattering of color values of the image process, as well we’ll see it by explaining the way in detail below and tables of readings and global standards that have been inferred by the application of the algorithm
Two Reliable Iterative Methods for Solving Chaos synchronization
Authors: Gani Sayl 
Published: May 2020

Abstract
In this article we proposed two reliable iterative methods for solving Chaos synchronization. The iterative methods are the Adomain Decompustion method (ADM) and Variational Iteration Method (VIM). The ADM and VIM are solved several problems in different areas which accuracy and efficiency in the results. The solution which get is an approximate solution is accuracy as we well show that in figures and tables for the analysis of maximum error reminder various. The software which used in the study for the calculations was MATHEMATICA 11.
Inserting Virtual Static Object with Geometry Consistency into Real Video
Authors: Sami Ibrahim Abdul-Wahab , Mhamed Taher Sarab 
Published: May 2020

Abstract
Given the importance of augmented reality in recent years and its wide spread in many fields of media industries, practical fields such as medicine, education, and others. This study present a methodology in order to insert virtual static object into a real video environment for improve the reality with a virtual information that was not actually present. There are several problems needs to be overcome during the process of merging the virtual object such as geometry of shapes, registration, and illumination. The aim of this study is to make the virtual static objects look like it actually exists in the same real video environment in terms of dimensions, sizes and consistency of shapes. The following steps of the proposed method are: Firstly convert original video file into frames. Secondly separate the background from foreground by rebuilding the background model, then obtain the foreground objects by subtract original frames of the video from background. Thirdly apply the background segmentation. Then extracting the features for every one of the segments and extracting the features of virtual static object. Fifthly selecting a suitable segment (area) for insert the virtual object.
Spectrum of Soft Compact Linear Operator with Properties
Authors: Khaleefah Sabah A , Ahmed Buthainah A A 
Published: May 2020

AbstractSoft operators defined on soft normed spaces are relatively modern concepts. Many properties of these operators have not been thoroughly studied. We have introduced in this paper some new concepts related to the soft compact operators such as spectrum of soft compact operator, null space of soft compact operator and rang of soft compact operator. Many important theorems related to these concepts were introduced.
Hyper AT-ideal on AT-algebra
Authors: Tawfeeq Hameed Areej , Kareem Fatema F. , Hussein Ali Saba 
Published: May 2020

Abstract
In this paper is to introduce the concept of hyper AT-algebras is a generalization of AT-algebras and study a hyper structure AT-algebra and investigate some of its properties. “Also, hyper AT-subalgebras and hyper AT-ideal of hyper AT-algebras are studied. We study on the fuzzy theory of hyper AT-ideal of hyper AT-algebras hyper AT-algebra”. “We study homomorphism of hyper AT-algebras which are a common generalization of AT-algebras.
Fuzzy α-translation AB-ideal of AB-algebras
Authors: Hameed Ghazi Israa , Hameed Dr. Areej Tawfeeq , Abed Dr. Ahmed Hamzah 
Published: May 2020

Abstract
In this paper, we present the idea of fuzzy (normalized) fuzzy translaition and enlarged mysterious extensions of semi-foggy AB and fuzzy AB-ideal on AB-algebra and examine their characteristics and related matters.
Use Information Standards methods to select the best linear regression model of digital image
Authors: Chachan Fathala A. 
Published: May 2020

Abstract
In this paper, several models of digital linear regression were proposed to test the effect of digital treatments on the image, and then choose the relatively better model among the appropriate models and test their quality by adopting special criteria (Akaike Information criteria, Bayesian information criteria BIC, Hannan – Quinn criteria HQC) In this research it was found that the image was processed and underwent its work (rotate, change its background, minimize it, and improve its contrast) it has better quality compared to other pictures for having lowest value (AIC, BIC, HQC)
Determination the optimum orbit for low Earth satellites by changing the eccentricity
Authors: Ibrahim R H , Saleh A H 
Published: May 2020

Abstract
The main objective of this paper is to determine an acceptable value of eccentricity for the satellites in a Low Earth Orbit LEO that are affected by drag perturbation only. The method of converting the orbital elements into state vectors was presented. Perturbed equation of motion was numerically integrated using 4th order Runge-Kutta’s method and the perturbation in orbital elements for different altitudes and eccentricities were tested and analysed during 84.23 days. The results indicated to the value of semi major axis and eccentricity at altitude 200 km and eccentricity 0.001are more stable. As well, at altitude 600 km and eccentricity 0.01, but at 800 km and eccentricities (0.01, 0.05 and 0.1) the stability of the orbit was not depending strongly on eccentricity value, because the effect of the drag is too small.