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Analysis of Composite Panels of Profiled Steel Sheet with Ferrocement by Using Finite Element Method 用有限元法分析钢筋混凝土压型钢板复合板
Pub Date : 2020-08-28 DOI: 10.32792/utq/utj/vol14/4/9
M. A. Jennam
This paper concerns with the application of finite element technique to the nonlinear analysis of the behavior of profiled steel sheet ferrocement (PSSF) composite panels. The composite panels were analyzed using nonlinear three dimensional finite element models. The constitutive models of the nonlinear material behavior for ferrocement matrix, PSS, and steel wire mesh were used. ANSYS version 16.1 program code was used to analyze the three dimensional model. Ferrocement was modeled by using the 8-noded isoperimetric brick elements (SOLID65) with three degrees of freedom, while the profiled steel sheet was modeled as SHELL181 element with four-node element with six degrees of freedom at each node: translations in the x, y, and z directions, and rotations about the x, y, and z-axes. A nonlinear spring element, COMBIN14, was used to represent the mechanical connectors, while to simulate the adhesive epoxy layer solid element SOLID185 was used. It was defined by eight nodes having three degrees of freedom at each node: translations in the nodal x, y, and z directions. The wire mesh reinforcement was modeled as a volume ratio distributed within the ferrocement brick elements. The analytical results of load-deflection response have been compared with available experimental works.
本文研究了将有限元技术应用于异形钢板复合材料板的非线性性能分析。采用非线性三维有限元模型对复合材料板进行了分析。采用铁基、PSS和钢丝网的非线性材料特性本构模型。采用ANSYS 16.1版程序代码对三维模型进行分析。钢筋混凝土采用3个自由度的8结点等距砖单元(SOLID65)建模,型钢钢板采用4结点单元(SHELL181)建模,每个结点有6个自由度:x、y、z方向的平移和x、y、z轴的旋转。采用非线性弹簧单元COMBIN14代表机械连接件,采用固体单元SOLID185模拟胶粘剂环氧层。它由八个节点定义,每个节点有三个自由度:节点x, y和z方向的平移。钢丝网钢筋被建模为在铁砖单元内分布的体积比。将荷载-挠曲响应的分析结果与已有的实验结果进行了比较。
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引用次数: 0
Contaminants of Nasiriyah thermal power station and its impact on the Euphrates River in Thi Qar city 塔尔市纳西里耶热电厂污染物及其对幼发拉底河的影响
Pub Date : 2020-08-28 DOI: 10.32792/utq/utj/vol14/4/3
A. Y. M. AL-Ardy, A. G. Al-Shatravi, R. A. Ali, Al-Fatlawi
: The research included the study of environmental pollution in the Euphrates River in the vicinity of the power plant in Thi Qar city and its impact on the quality and environment of the river water. The study showed the high values of most physical and chemical properties in the river water, which confirms the effect of the electric station. The samples were taken during the months of February and April of 2019. Six stations were chosen along the river in the study area, two stations before the electric station and two stations next to the station and two stations after the electrical station. The samples were taken from the edge of the river and from the middle and at a depth of (30) cm. The laboratory tests were conducted to calculate the electrical conductivity ,PH and the calcium and magnesium ion rates. The study of properties showed that all levels except PH are not in accordance with the Iraqi and global determinants of potable water as shown in Table (2). We also noticed that these rates were higher in February than in April due to the rain that swept the country and consequently the rise in the water level of the river, which led to a decrease in the percentage of pollutants.
研究内容包括:研究塔尔市电厂附近幼发拉底河的环境污染及其对河水质量和环境的影响。研究表明,河水中大多数物理和化学性质的值都很高,这证实了电站的效果。这些样本是在2019年2月和4月采集的。研究区沿河流选择了6个站点,电站前2个,电站旁2个,电站后2个。样本取自河的边缘、中部和(30)cm的深度。进行了电导率、PH值和钙镁离子速率的实验室测试。属性研究表明,除PH值外,所有水平都与表(2)所示的伊拉克和全球饮用水决定因素不一致。我们还注意到,由于降雨席卷全国,导致河水水位上升,这些比率在2月份高于4月份,这导致污染物百分比下降。
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引用次数: 0
The Frequency and Sensitivity Pattern of Pseudomonas aeruginosa among Otitis Media patients in Nasiriyah City 纳西里耶市中耳炎患者铜绿假单胞菌感染频率及敏感性分析
Pub Date : 2020-08-28 DOI: 10.32792/utq/utj/vol14/4/2
A. Fadhel
Otitis Media considered as one of the most common types of ear infections, as well as the most blamed etiology is bacterial. Pseudomonas aeruginosa is the most diagnosed pathogens causing these infections. P. aeruginosa has virulence factors that lead to damage to the mucosa of the middle ear. A total of two hundred and ten (210) samples collected from Otitis media patients whom consulting the Ear, Nose, and Throat (ENT) section in AL-Habbobi Teaching Hospital in Al-Nasiriyah City, Southern-Iraq. During the period from August 2018 to January 2019. P. aeruginosa accounted for 65 samples (30.95%). Almost of isolates were sensitive to Carbapenem. The present study concludes females constitute a high percentage of infection with Otitis media (P-value= 0.01) and younger ages are more exposed to the risk of Otitis media (P-value = 0.36). The present study aimed to detect the relationship between the prevalence of Otitis media and the parameters associated with patients like gender, age, housing, and the study period. Also studying the pattern of antibiotics Sensitivity for the targeted bacteria and detection of some virulence factors.
中耳炎被认为是最常见的耳部感染之一,也是最常见的病因是细菌。铜绿假单胞菌是引起这些感染的诊断最多的病原体。铜绿假单胞菌具有导致中耳粘膜损伤的毒力因子。从伊拉克南部纳西里耶市AL-Habbobi教学医院耳鼻喉科就诊的中耳炎患者中收集的210个样本共210个。在2018年8月至2019年1月期间。铜绿假单胞菌65份(30.95%)。几乎所有分离株对碳青霉烯敏感。本研究得出结论,女性中耳炎感染率较高(p值= 0.01),年龄越小,中耳炎风险越大(p值= 0.36)。本研究旨在检测中耳炎的患病率与患者的性别、年龄、住房和研究时间等参数之间的关系。同时研究了目标菌对抗生素的敏感性及部分毒力因子的检测。
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引用次数: 1
Investigation of Refrigerant R134a Two Phase Flow Heat Transfer in Vertical Heat Exchanger Channel 制冷剂R134a在垂直换热器通道内的两相流换热研究
Pub Date : 2020-08-28 DOI: 10.32792/utq/utj/vol14/4/8
Abdullah Adel Ibrahim, Ahmed J. Hamad, J. Johain, Faraj
Two phase flow boiling heat transfer and pressure drop in the vertical evaporator tube section of refrigeration system have been experimentally investigated using refrigerant R134a as a working fluid. The objective of the present work is to investigate experimentally the effect of heat flux, mass flux, vapor quality and saturation temperature on refrigerant flow boiling heat transfer characteristics in the evaporator of refrigeration system. These investigated parameters have significant impacts to enhance the thermal performance of the evaporator. The experimental investigations were conducted in smooth copper tube with inner diameter 5.8 mm and 600 mm length under different test conditions. The test conditions considered in this study were, for heat flux of 7.718-32.78 kW/m 2 , mass flux of 97.3-148.7 kg/m 2 .s , saturation temperature of 20.58 to -15.68 ̊C and vapor quality of 0.3-1. It can be concluded from the results that, the average heat transfer coefficient at relatively greater mass flux 148.7 kg/m 2 .s was higher in range of 21% compared to other mass fluxes at constant test conditions. The relatively higher value of heat transfer coefficient was observed at heat flux 32.78 kW/m 2 with average increase of 19% compared to the relatively lower value 23.38 kW/m 2 . The enhancement in local heat transfer coefficient at saturation temperature University of Thi-Qar Journal Vol.14 No.3 SEP 2019 Web Site: https://jutq.utq.edu.iq/index.php/main Email: utj@utq.edu.iq 2 15.68 ̊C was higher by about 12% than that for the relatively lower temperature -20.58 ̊C. The effect of increase in mass flux and heat flux on pressure drop in the evaporator tube was about 9% and 7.5% respectively.
以R134a制冷剂为工质,对制冷系统垂直蒸发器管段的两相流沸腾换热和压降进行了实验研究。本文的目的是通过实验研究热流密度、质量通量、蒸汽质量和饱和温度对制冷系统蒸发器内制冷剂流动沸腾换热特性的影响。这些参数对提高蒸发器的热性能有重要影响。在内径为5.8 mm、长度为600 mm的光滑铜管中进行了不同试验条件下的实验研究。试验条件为热流密度7.718 ~ 32.78 kW/ m2,质量通量97.3 ~ 148.7 kg/ m2 .s,饱和温度20.58 ~ -15.68℃,蒸汽质量0.3-1。结果表明,在恒定试验条件下,较大质量通量148.7 kg/ m2 .s时的平均换热系数较其他质量通量高21%。换热系数在热流密度为32.78 kW/m 2时较高,比热流密度为23.38 kW/m 2时平均提高19%。饱和温度下局部换热系数的增强比较低温度-20.58℃时提高了约12%。新疆维吾尔大学学报Vol.14 No.3 SEP 2019 Web Site: https://jutq.utq.edu.iq/index.php/main Email: utj@utq.edu.iq 2 15.68℃。质量通量和热流密度的增加对蒸发器管内压降的影响分别为9%和7.5%左右。
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引用次数: 1
An analytical study of some trace elements in water and plants using an atomic absorption spectrophotometer in Thi-Qar governorate 用原子吸收分光光度计分析齐喀尔省水和植物中某些微量元素
Pub Date : 2020-08-28 DOI: 10.32792/utq/utj/vol14/4/7
Sajid. H. Guzar, Hawraa Chassib Bukhaibukh
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引用次数: 0
Measuring the Effect of the Follow-up Evaluation of the Training Exercises for the Tension of Supraspinatus Muscle Animation Injury and Some Physical and Functional Variables 测量训练练习对冈上肌张力动画损伤的随访效果及一些物理和功能变量
Pub Date : 2020-08-28 DOI: 10.32792/utq/utj/vol14/4/12
Ali jasim Swadi
: The research included one of the injuries that most athletes fusser from while practicing various games which is the injury of Supraspinatus muscle animation of the shoulder joint. The study aimed to prepare training exercises for this type of injury according to the functional and physical aspects of the injured athletes, as well as evaluating these exercises according to different stages of applying. The researchers used the experimental approach and design an experimental group of different stages that is suitable for the problem. The population of the study included the players of shoulder joint injury coursed by musculoskeletal inflammation, premier league participant and participants of the qualifying for the premier league of 2017-2018, in Thi-Qar city. The total of the research community is 12 players. However, the researchers concluded that the praxis of various exercises has a positive effect on the inflammation of supraspinatus muscle animation. Thus, the evaluation of training exercises during different stages showed the amount of improvement through the successful application of these exercises, which reflected on the work of the muscle physically and functionally.
本研究包括了大多数运动员在练习各种运动时最容易受到的损伤之一,即肩关节冈上肌的损伤。本研究旨在根据受伤运动员的功能和身体状况,为这类损伤准备训练练习,并根据不同的应用阶段对这些训练进行评价。研究人员采用实验方法,设计了适合该问题的不同阶段的实验组。该研究的人群包括由肌肉骨骼炎症引起的肩关节损伤的球员、英超联赛的参与者和2017-2018年英超联赛预选赛的参与者。整个研究界共有12名参与者。然而,研究人员得出结论,各种运动的练习对冈上肌的炎症有积极的影响。因此,对不同阶段训练练习的评估显示了通过这些练习的成功应用所带来的改善程度,这反映了肌肉在身体和功能上的工作。
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引用次数: 0
Theoretical study for Coronene and Coronene-Al, B, C, Ga, In and Coronene-O interactions by using Density Functional theory 用密度泛函理论研究电晕烯与电晕烯- al、B、C、Ga、In和电晕烯- o相互作用
Pub Date : 2020-08-28 DOI: 10.32792/utq/utj/vol14/4/6
Sadiq Kh. Ajeel, Mohammed L. Jabbar
Molecular structure geometry have been investigated for Coronene and Coronene-Al, B, C, Ga, In and Coronene-O by using Gaussian software at basis set 3-21G, B3LYP level, density functional theory (DFT). Adding the atoms Al, B, C, Ga, In or Oxygen to Coronene change electrons density distribution. Study of the magnetic characterstics shows that some systems like Coronene-Carbon and Coronene-oxygen has the antiferromagnetic charactersti, this type of magnetic properties stands for open shel system which has two type of orbital α and β orbitals. Individual atoms calculations was achieved in order to make a comparison between Coronene and the atoms to demonstrate which of them will behave as a donor or an acceptor. E HOMO , E SOMO , E LUMO , total energy electronegativity and electrophilicity were evaluated for all paradigms under the study. Using DFT to study the symmetry shows that there are two types of point group symmetries C 6h /C 1 and Cs/C 1 . Coronene-Corbon posseses the highest dipole moment value among the samples, it has the value (5.5873 Debye), dipole moment credit is very important to give sight about the internal structure of substances. Calculations of chemical potential shows clearly Al, Ga and In behave as donors, while B, C and O behave as acceptors. Also binding energy study exhibits that Coronene is going to physisorbe on the surface of the atoms B, C and O.
利用高斯软件在基集3-21G、B3LYP水平和密度泛函理论(DFT)上研究了Coronene和Coronene- al、B、C、Ga、In和Coronene- o的分子结构几何。在冕烯中加入Al、B、C、Ga、In或氧原子会改变电子密度分布。磁特性的研究表明,冕-碳和冕-氧等体系具有反铁磁特性,这种磁特性代表了具有α和β两种轨道的开壳体系。实现了单个原子的计算,以便在冕烯和原子之间进行比较,以证明它们中的哪一个将作为供体或受体。评价了E HOMO、E SOMO、E LUMO、总能量电负性和亲电性。利用离散傅立叶变换(DFT)对点群对称性进行了研究,发现点群对称性有两种类型:c6h / c1和Cs/ c1。其偶极矩值最高,达5.5873德拜(Debye),偶极矩信用值对观察物质内部结构具有重要意义。化学势的计算清楚地表明,Al、Ga和In是供体,而B、C和O是受体。同时,结合能研究表明,冕烯在B、C和O原子表面会被物理吸收。
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引用次数: 4
Privacy Preserving Scheme for Online Image Sharing 在线图像共享的隐私保护方案
Pub Date : 2020-08-28 DOI: 10.32792/utq/utj/vol14/4/10
Suhad Abbas Yassir
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引用次数: 0
Counting of Total and Differential White Blood Cells in Cutaneous Leishmaniasis Patients in Nassiryha city Thi-qar Province 青海省纳西里哈市皮肤利什曼病患者白细胞总数和差异计数
Pub Date : 2019-09-17 DOI: 10.32792/utq/utj/vol14/3/3
A. H. Oleiwi, Fadhial Abbas Munshad, A. Salman
The present study was carried out on 50 cutaneous Leishmaniasis patients  , without taken  treatments and they were having sore skin infection diagnosed by dermatologist as Cutaneous Leishmaniasis   and clinical diagnosis and 25 control groups , attended  five  main hospitals  in Thi-Qar province ,there are  Imam Hussein Teaching Hospital , Shattra  general hospital, Rifya  general hospital , Suq Al-Shayokh general hospital and Al-Chibayish general hospital, during the period from the beginning of January  2017 to end in June in the same year. The statistical analysis were P≤ 0.05 considered statistically significant. There was significant decrease at p≤ 0.05 in mean of total WBCs in CL patients(6.36) compared to (controls groups) (7.80), also there was significant differences in mean of basophiles,  monocytes , in CL patients(0.75 and 5.65) compared to (controls groups)  (1.18 and 6.92) and there was increase and no significant differences were observed in mean of eosinophil’s in CL patients compared to (controls groups)( 2.31and 2.08)  .There was significant were observed increase in mean of neutrophils and  lymphocytes in CL patients (65.92 and 32.53)compared to controls groups (58.27 and 25.08).
本研究对50名皮肤利什曼病患者和25名对照组进行了研究,这些患者未经治疗,皮肤医生诊断为皮肤利什曼病和临床诊断为皮肤利什曼病,他们在Thi-Qar省的五家主要医院就诊,分别是Imam Hussein教学医院、Shattra综合医院、Rifya综合医院、Suq Al-Shayokh综合医院和Al-Chibayish综合医院。在2017年1月初至同年6月底期间。以P≤0.05为差异有统计学意义。淋巴细胞癌患者白细胞总数(6.36)与对照组(7.80)相比有显著性降低(p≤0.05),嗜碱性细胞、单核细胞、CL患者嗜酸性粒细胞的平均值(2.31)与对照组(2.08)比较,差异无统计学意义。CL患者中性粒细胞和淋巴细胞的平均值(65.92)与对照组(58.27)比较,差异有统计学意义(32.53)。
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引用次数: 1
The effectiveness of mixed learning in the acquisition of physical concepts and the development of knowledge motivation among students in the fifth grade scientific / biological 混合学习在五年级科学/生物学生物理概念习得和知识动机发展中的有效性
Pub Date : 2019-09-17 DOI: 10.32792/utq/utj/vol14/3/5
S. Haddood
The aim of the research is to find out the effectiveness of mixed learning in the acquisition of physical concepts and the development of cognitive motivation among students in the fifth grade of science / bio, through the following two zero hypotheses: 1-There were no statistically significant differences at the level of significance (0.05) between the average scores of the experimental group students who studied the blended education and the control group studied in the usual way in the test of the acquisition of physical concepts . 2-There was no statistically significant difference at the level of significance (0.05) between the average scores of the experimental group students who studied the blending education and the control group studied in the standard method of cognitive motivation .         The current research was determining  to the fifth grade scientific / biological students in the day schools of the Directorate of Education Dhi Qar for the academic year 2018/2017.                         The experiment was applied in the second semester. The sample consisted of (90) students divided into two divisions randomly divided into two groups (44) and (b) to be the control group and the number of its members (46) students, the two groups were rewarded in the age of the month of months and intelligence, the physics degree of the fourth grade scientific and the previous information test and the measure of cognitive motivation .        The researcher prepared the requirements of the experiment by identifying the scientific material and formulating the behavioral purposes and preparing the teaching plans .               The experimental group studied the use of mixed learning and studied the control group in the usual way for a period of one semester, and then applied the test of acquisition of physical concepts and the measure of cognitive motivation.            To obtain the results, the data was statistically treated using the TEST for two independent samples. The results showed that the experimental group was superior to the control group in the test of the acquisition of physical concepts and the measure of cognitive motivation. In light of this, the researcher made a number of recommendations and suggestions related to the results of the research.
本研究的目的是通过以下两个零假设,探讨混合学习在科学/生物五年级学生物理概念习得和认知动机发展中的有效性:1 .在物理概念习得测试中,采用混合教育的实验组学生与采用常规学习方式的对照组学生的平均分比较,差异无统计学意义(0.05)。2 .采用混合教育的实验组学生的平均成绩与采用认知动机标准方法学习的对照组学生的平均成绩差异无统计学意义(0.05)。目前的研究正在确定2018/2017学年迪加尔教育局走读学校的五年级科学/生物学生。本实验应用于第二学期。本样本由(90)名学生分为两组随机分为两组(44名)和(b)组为对照组及其成员数(46名)名学生组成,两组分别在年龄、月、智力、四年级物理科学程度和以前的信息测验以及认知动机方面进行奖励。研究者通过确定科学材料、制定行为目的和制定教学计划来准备实验要求。实验组对混合学习的使用进行了为期一个学期的研究,对照组在此基础上进行了常规学习,然后进行了物理概念习得测试和认知动机测试。为了得到结果,对两个独立样本的数据使用TEST进行统计处理。结果表明,实验组在物理概念习得测试和认知动机测试中均优于对照组。鉴于此,研究人员提出了一些与研究结果相关的建议和建议。
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引用次数: 0
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University of Thi-Qar Journal
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