bluuebunny/crossref_metadata_2025_split huggingface dataset:
Investigation Adsorption Mechanism of Methane Gas in Graphene and Copper Doped Nano-ribbon Using Density Function Theory
Authors: Al-Seady Mohammed A. , Grmasha Ruqayah Ali , Al-Aaraji Noor Al-Huda , Abduljalil Hayder M. 
Published: May 2021

Abstract
In this study, density function theory was used to evaluate geometrical and electronic properties for pure and doped system as well as adsorption energy. Pure graphene nano-ribbon appeared in plane surface during adsorption energy to have low sensitivity to methane gas. Its energy gap changed only in distance 1A because of the chemical adsorption. Doping mechanism enhanced the proprieties of graphene nano-ribbon. In geometrical structure, copper (Cu) atom stretching the nano system and it is a sign of modification. Additionally, energy gap was decreasing by doped in transition metal atom and become opening. Adsorption energy of doped system was higher than pure nano-ribbon. It was noticed that the doped transition metal enhanced the sensitivity of the system 6 times greater than pure graphene nano-ribbon. Doping graphene nano-ribbon by copper atom revealed to be a key to design chemical and physical gas sensor for methane gas.
Study the Relationship between Beta Decay Stability of Nuclide and its Shape for Some even-even Isobars
Authors: Jarallah Naz T , Nayyef Murtadha S 
Published: May 2021

AbstractThe aim of this work is to learn the relationship of the stability of (β) emitter isobars with their shape for some isobaric elements with even mass number (A=152 - 162). To reach this goal firstly the most stable isobar have been determined by plotting mass parabola (plotting the binding energy (B.E) as a function of the atomic number (Z)) for each isobaric family. Then three-dimensional representation graphics for each nucleus in these isobaric families have been plotted to illustrate the deformation in the shape of a nucleus. These three-dimensional representation graphics prepared by calculating the values of semi-axis minor (a), major (b) and (c) ellipsoid axis’s. Our results show that the shape of nuclides which is represented the most stable isobar in mass parabola are not spherical but they have some deformation in their shape, and need to emit a gamma ray to a chive more stable status and get spherical shape. The stable nuclides, which are determined from mass parabola, are different from the nuclides, which have less value of deformation.
Studying the nuclear structure of the (

66162Dy96

) deformed nucleus by using (IBM-1) and (VAVM) Models
Authors: Al-Kubaisi Ektefaa Adnan , Ali Kalaf Aobaid 
Published: May 2021

Abstract
In this paper, the nuclear structure of the deformed even-even

66

162

D

y

96

nucleus was studied using the first interacting boson model (IBM-1) to calculate the energy levels E(L) and the transitional energy (Eγ
). The energy bands, as well as the quadrupole moment (QL
) can be calculated to know the shape of the nucleus and the moment of inertia model, energy levels E(L), transitional energy (Eγ
) and the bands intersection. The current study showed that at dynamic symmetry SU (3), there is no effect of inertia moment on the shape of the rotational nuclei due to the absence of the phenomenon of back bending that belongs to this dynamic symmetry, through calculating the energy levels ratios found that

66

162

D

y

96

nucleus belongs to the rotational dynamic symmetry SU (3). A comparison of the available practical results with the results calculated by (VAVM) and (IBM-1) showed that the (VAVM) model are better than the results calculated by (IBM-1).
Effect of deposition time on the structure, direct and indirect energy gap of nanoparticles CdO thin films deposited by chemical bath deposition technique
Authors: Jassim Salah Abdul-Jabbar , Ali Nassar Eman Mohammed 
Published: May 2021

AbstractIn this research, cadmium oxide (CdO) nanoparticle thin films have been prepared at room temperature using a chemical bath deposition (CBD) technique, and the effect of the deposition time were studied.CdOthin films have been deposited on glass substrate from cadmium chloride (CdCl2) ascd+2ions source and sodium hydroxide NaOH asO−2ions source. The pH value (acidity level) of the chemical bath was fixed at about 11. TheCdOthin films structures were analyzed by X-ray diffraction. It shows that all the prepared thin films have a cubic polycrystalline structure with a preferential orientation along (111) plane. All structural parameters were calculated. Particle size for the preferential orientation is calculated between (19.1-35.5 nm). It is found that the grain size increased with increasing the deposition time. UV-Vis spectrophotometer was used to study the optical properties, and a blue shift in the absorption peaks was noticed. The energy gap values (direct transition and indirect) calculated from the absorption spectrum located between (3.026-3.409 eV) for direct transitions and (2.197-2.917 eV) for indirect transitions, and this indicates that allCdOthin films prepared nanoparticles. We found that the energy gap decreased with increasing the deposition time.
Evaluation the reactions of production the radioactive Iodine-124
Authors: Hussein Aeshah Ali , Jarallah Naz T , Saied Mohamed Bashair 
Published: May 2021

Abstract
Nowadays, the field of radionuclide treatment is enjoying an exciting stage and preparing for further growth and progress in the future. For instance, in Asia, the large spread of liver and thyroid diseases has resulted in several new developments/clinical trials using molecular radiotherapy (i.e. targeted radionuclide therapy). Iodine-124 has unique physical properties including long half-life that adding an advantage for pharmacokinetics and radiopharmaceutical analysis. One of its applications in nuclear medicine is in Positron Emission Tomography (PET). The aim of the present work is to evaluate the production yield of 124I via calculated the excitation functions/stopping power for the reactionsnatTe(P, X)124I, 121 Sb(A, N)124I,natSb(A, X)124I and 123Sb(A,3N)124I in the energy range ( 3.87-62.95)MeV by using Mat-lab and SRIM programs.
Study of Pb Ions Removal from Aqueous Solutions by a Novel Sodium Formate-Coated Magnetite Nanoparticles
Authors: Mustafa Hanan J. , Al-Saadi Tagreed M. 
Published: May 2021

AbstractOne of the problems that continuously happen from the past ages till the present time is the contamination of the water sources with heavy metal ions; as a continuation of the many studies have been done so far to solve this problem. Novel magnetite nanoparticles (NPs) coated with sodium formate (SF-Ni0.31Mg0.15Ag0.04Fe2.5O4)have been prepared using co-precipitation method. Characterization of the prepared SF-magnetite NPs was done by using the spectroscopic devices (XRD), (SEM), (EDX), (FT-IR), and (AAS). From the XRD spectrum it was found that the crystal structure of the prepared SF-magnetite NPs is a cubic inverse spinel structure, which has average crystallite size, the lattice constant, and X-ray density of 28.57 nm, 8.33 Å, 5.29 g/cm3, respectively. SEM images have shown that the prepared NPs have a sphere-like shape with a measured average crystallite size of 25.93 nm. By EDX spectrum the presence of the constituent elements was confirmed by giving their energy peaks (O: Kα=0.525), (Fe: Kα=6.4, Lα=0.705), (Ni: Kα=7.84, Lα=0.85), (Mg: Kα=1.25), and (Ag: Lα=2.98, Lβ=3.35). The attachment of the SF molecules to the magnetite NPs was proven by the FT-IR spectrum through appearing the absorption peaks in the SF-magnetite NPs spectrum at 1600cm−1and 3400cm−1return to the bonds (C=O) and (C-H stretch) in SF. By ASS results, adsorption of Pb ions was clearly influenced by SF coating giving removal rate (93%) at equilibrium time (10min) in the prepared solution of Pb(NO3)2salt, while for the wastewater samples the removal rate was (55%) - (100%).
Electrical and optical properties of ZnO, CuO thin films and fabrication of (ZnO/CuO) heterojunction solar cell by thermal treatment
Authors: Kashkool I.N. , Afanasjev V.P. , Mukhin N.V. 
Published: May 2021

Abstract
Electrical properties (carrier concentration, mobility, resistivity) of zinc oxide thin films deposited on glass substrates by (LPCVD) has been studied. Thermal annealing in air showed that ideal annealing temperature is about 250°C. Films of copper oxide (CuO) and (CuO/ZnO) solar cell were prepared by vacuum deposition of copper films followed by thermal annealing. structural properties of the CuO films and I-V characteristics were studied upon thermal annealing and showed that a photosensitive (ZnO/CuO) heterojunction may be obtained by thermal treatment temperature about 500°C.
Measurement of outdoor Radon Concentrations in Soil Samples collected from Karabuk University in Turkey by using CR-39 Detector
Authors: Mahdi Khalid H , Erer A Mustafa , Kanbur Ulvi , Ağduk Savaç , Oguz Serkan , Çakmak Necla 
Published: May 2021

Abstract
In this work, radon gas concentration in (35) samples of soil collected from Karabuk University in Turkey was measured by using nuclear track detector (CR-39). The content of radium, the rate of surface exhalation and the rate of mass exhalation have been assessed. The concentrations of radon were varied from (16.348 Bq.m−3) to (196.988 Bq.m−3). Results indicate that the equivalent content of radium varied from (0.386245 Bq.kg−1) to (4.654255 Bq.kg−1). The exhalation rate for surface varied from (0.002007 Bq.m−1.h−1) to (0.023031 Bq.m−1.h−1). The exhalation rate for mass varied from (0.000319 Bq.kg−1.h−1) to (0.00366 Bq.kg−1.h−1). All the obtained results found to be less than the corresponding limits for the world. Thus, based on the radon gas concentration and radiation, the equivalent content of radium (CRa), exhalation rate for the area (EArea) and exhalation rate for the mass (EMass) in this area have no risk to the human’s health.
The Effect of Adding SiC on Some of the Mechanical Properties of the Cu-Al2O3 System Using Powder Metallurgy
Authors: Ghareeb Suha M. , Allah Sabah Mahmoud Aman , Darweesh Salih Y. 
Published: May 2021

Abstract
Powder metallurgy is one of the simple ways employed to produce alloys that are used in many technological applications. In the recent work, different contents (0, 5, 10, 15 and 20%) of silicon carbide (≥ 63μm) were used as a reinforcement material on matrix ((90, 85, 80, 75 and 70) % Cu-10% Nano-Al2O3). The mixture was milled by a locally made mill for three consecutive times (2, 4 and 6) hours. After that, a compressor with the highest compaction capacity (20 tons) was used to compact the mixture. The mixture was compacted in a steel die through applying pressure of 5 tons for one minute. After sintering samples at 900°C for two hours, mechanical tests including Vickers hardness, diametric compressive strength and wear were applied as a function of the grinding time. The results showed that the best hardness of (119.4 Hv) is reached for the grinding time of six hours and the reinforcement of (20% SiC), while the highest compressive strength was obtained for same time of grinding with a reinforcement of (53.3 Mpa). Concerning the rate of wear, its value decreased to the lowest value at the same conditions above (1.10368*10-7 g/cm). Accordingly, the best characteristic parameters of the results appeared at 900°C, the grinding time of six hours, and reinforcement content of 20%.
Anatomical and chemical study on the growing Eriobotrya japonica in Anbar Governorate
Authors: Awad Lubab Mohamed , Hameed Ashwaq Talib 
Published: May 2021

Abstract
current research consists of an anatomical find out about of the Eriobotrya japonica from the Rosaceae in Anbar Governorate, which is in the structure of planted trees. The anatomical features of the s, leaf blade and market have been studied and its traits and floor have taxonomic significance in keeping apart and diagnosing this type. Appearance qualities can be linked with anatomical qualities to achieve an built-in classification. The quantity of layers and thickness of every organ, vascular bundles characteristics, wide variety of vessels, the traits of epidermal cells and cross-section structure are all studied contributing to taxonomic significance. The current study also dealt with the phenotypic characteristics of the stem, leaf and stalk, and it became clear through this study that the stems of the type Eriobotrya japonica were cylindrical and hard with many branches and were distinguished by a greenish-brown color. It is not a fixed characteristic of the single type in addition to the shape of the leaf, which is one of the important features in the classification. The stalk is characterized by being short and covered with hairy and green or yellowish green color, and these characteristics are important in the classification of this type. The fatty acids were detected in the hexane extract of Eriobotrya japonica in the gas chromatography device - GC, and the results indicated that this type contains fatty acids, the highest percentage of linoleic acid was 60% and the lowest Linolenic acid by 0.17%.
Research on the Design of Cutting Table Mechanism of Leafy Vegetable Harvester Based on Computer Technology
Authors: Yin Haifang , Wang Zhenhua 
Published: May 2021

Abstract
In view of the fact that vegetable harvesting in my country is still manual harvesting, with large labor force and low efficiency, a universal harvesting machine for stem and leaf vegetables has been developed. This machine has the advantages of simple operation and high efficiency. This article focuses on the machine design, working principle and technical situation of the harvester for stem and leaf vegetables. The modified machine has been verified by practice and realized the predetermined design function.
Research on Oil Painting Creation Based on Computer Technology
Authors: Liu Fangfei 
Published: May 2021

Abstract
Painting art can bring us the experience of life. The art of painting is the crystallization of thousands of years of Chinese culture. Many people like oil painting. This traditional art form can transform people’s thinking into a physical picture. In the process of oil painting creation, artistic conception needs to be rendered. With the rapid progress of science and technology, people found that computer technology can help the creation of oil painting[1]. This paper mainly describes the reference of computer technology to oil painting creation. This paper puts forward the indirect application of image processing technology and computer aided technology in oil painting creation.
RETRACTED: Research on Intelligent Transportation Construction Model Based on Computer Technology
Authors: Chen Chen , Jia Yandang 
Published: May 2021

Abstract
With the continuous progress of the society, people’s living standard has been continuously improved, which is obviously reflected in the way people travel. More and more people begin to use cars as a means of transportation in daily production and life. Computer technology has been widely used in the construction of vision in intelligent transportation. So-called visual traffic means the use of computer image processing function, the analysis of image processing, and the image obtained mainly from traffic monitoring system, in the main city of placed in a large number of surveillance cameras, real-time monitoring of traffic, through the analysis of the collected image processing, to timely learn about the way of real-time traffic, thereby to shunt of key crossroads, reduce the pressure of main road traffic. In the establishment of intelligent transportation, the traffic signal lamp is an indispensable and important part, and the traffic signal lamp is also an effective way of traffic management. In the establishment of intelligent transportation, the vehicle positioning and navigation requirements are high, so the real-time positioning and real-time navigation of the vehicle is particularly important. In this paper, the construction of intelligent transportation as a starting point, from the computer technology in the construction of intelligent transportation in the process of various advantages were analyzed, the feasibility of the construction of intelligent transportation for in-depth analysis.
Research on the Application of Foreign Literature Based on Computer Retrieval
Authors: Zhu Fenfen 
Published: May 2021

Abstract
With the popularization of the utilization of foreign literature in China, the relevant literature researchers and readers put forward higher requirements for the utilization of literature, especially strengthen the research and analysis of the role of foreign literature corpus. Based on this, this paper first analyses the concept and connotation of computer retrieval, then studies the concept and connotation of computer retrieval, and finally gives the utilization of foreign literature based on computer retrieval.
Research on Power Motor Test System of Energy Vehicle Based on Computer Control
Authors: Liu Lesheng 
Published: May 2021

Abstract
With the increasingly serious problem of energy shortage, new EV (hereinafter referred to as EV) research has become an important research field, which can help alleviate the energy crisis and environmental pollution. New EV is a way based on electric energy as the power source, which is a kind of vehicle with motor as the core. Therefore, the performance of the motor is directly related to the operating efficiency, which requires us to test the motor. Therefore, this paper designs an automatic test method, which can simulate the running time and load of new EVs, which can better ensure the stability under different working conditions. With the development of computer, can bus technology has been applied to various industries, especially in the automotive field. Firstly, this paper analyzes the CAN bus technology of new EVs. Then, this paper analyzes the motor model and file ion battery model. Finally, this paper puts forward the motor test scheme.
Research on Application of Intelligent Prestressed Construction Technology Based on Computer Software Analysis
Authors: Shi Dong , Zhang Limei 
Published: May 2021

Abstract
The important process of prestressing work is prestressing tension, which can directly affect the safety and durability of prestressed structure and frame. The role of prestressing tension is to ensure the quality of the bridge, which is related to the safety and durability of the bridge structure. This article mainly analyzes the intelligent tension technology, studies the specific application of the intelligent tension technology in construction, and does a little research on the future development of the intelligent tension technology. Practice has proved that the elongation value of the tension force of the intelligent tension system is accurate in operation, has good performance, high safety performance, simple operation and quality control.
Research on the strategy of auto paint repair system based on computer 3D modeling
Authors: Li Xiahui , Wang Zhe 
Published: May 2021

Abstract
With the rapid development of the auto repair industry, the continuous use of painting robots, auto paint repair automatic painting has also made progress. In this paper, firstly, the development of automotive paint technology and the main content of auto paint repair and auto paint spraying are described, and the strategy of auto paint repair and auto paint spraying system based on computer three-dimensional modeling is studied for readers’ reference.
Application of Computer Vision in 3D Film
Authors: Yi Zhenghui 
Published: May 2021

Abstract
As a form of entertainment in our daily life, movies have been a luxury at the beginning and become a normal form now. With the continuous development of The Times, film production technology is also constantly challenging innovation. Especially in recent years, high-end technology has been added to film production in order to make the audience have a better movie experience. The operating principle of 3D movies is simply to make use of the visual differences formed by people’s eyes when watching objects, record these differences respectively, and then project them onto people’s eyes with computer image technology, so that the audience can have a stereoscopic viewing effect. In the actual film shooting, due to the setting requirements of the scene modeling, a large amount of financial and material resources and manpower are often needed in the production process to create a desired scene, which also increases the production cost of the film, consumes a large amount of shooting time, and even wastes the actor’s modeling degree gratuitously. As for the movie scene space, it is actually divided into two parts. One is the real space environment, that is, the scene space in which actors need to perform, and the other is the psychological space of actors in the movie. This paper starts from the computer image processing technology, analyzes the application advantage of this technology in 3D film production, and thoroughly the modern society audience for the ultimate pursuit of the film, from multiple aspects of the development of 3D film and the application of computer image processing technology in 3D film for a detailed explanation.
Research on The Design of Table Tennis Training System Based on Computerized Body Sensing Technology
Authors: Sun Xiaomei 
Published: May 2021

Abstract
Table tennis is a sport that is easy to learn, difficult to master, and fun to play, and is arguably one of the most brain-burning sports in sports. As grip training is the foundation of table tennis training, it is important to study intelligent grip training methods for table tennis in order to improve the level of competition and training. Based on this, this paper combines computerized somatosensory technology to build a table tennis grip training system, so as to realize the optimal design of table tennis grip training system.
Application Research of Integrated Prefabricated Module Computer Room Solution Based on Computer Communication
Authors: Zhu Lei , Chen Li , Dong Tianbo , Cui Weihong , Yu Shaofeng 
Published: May 2021

Abstract
Modular machine room is to divide the whole machine room into several independent areas. The scale, power load and configuration of each area are customized according to the requirements [1]. A module is a single, independent, small data center. With the continuous expansion of business demand, independent modules are added, which can be combined flexibly to meet the different requirements of different customers for reliability level, power density and security level, so as to realize the purpose of rapid construction.
Research on the Reform of College Public English Teaching Management Based on Computer Network
Authors: Jia Liangyan 
Published: May 2021

Abstract
Many universities offer public English courses. Today’s society requires the continuous improvement of the level of English talents. The structure of Public English teaching management needs to be reconstructed. The teaching system of College English should be constantly strengthened and reformed. In order to meet the needs of today’s social development, universities should also strive to cultivate applied English talents[7]. With the continuous progress of network technology, the research on the reform of Public English teaching management based on network has become a hot topic for scholars. This paper describes the characteristics of English Teaching under the network environment. Finally, this paper mainly describes the main strategies of teaching management reform.
Research on Supply and Demand Forecast of Regional Integrated Energy System Based on Computer Internet of Things Technology
Authors: Yuchao Luo , Qiu Wang , Xiao Li , Yue Yuan , Zhixin Fu 
Published: May 2021

Abstract
With the development of technology, the demand of integrated energy is increasing in our country. However, the corresponding energy consumption rate and energy utilization rate are too different. Therefore, an intelligent energy management and control system has been proposed, which is based on he Internet of Things technology. This paper also gives the system structure and main functional modules so that energy efficiency can be improved better.