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Improve the Positioning Accuracy for Indoor Applications Based on Hyperbolic Method with Optimum Measurement 基于最优测量的双曲线法提高室内定位精度
Q4 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-04-02 DOI: 10.51173/jt.v5i1.812
Noor N. Abed, Mahmood F. Mosleh, Faeza A. Abed, Ali A. Abdullah, Atta Ullah
The localization for indoor environments is faced by problems related to high error rates. To address this problem, a hyperbolic method is chosen which is a suitable for such environments. Also, such methods give a significant error when depending on RSS values, which suffer from unstable reading. To overcome this phenomenon, a proposed method is presented in this research to choose a suitable value of RSS. The idea is to install 4TXs in the chosen case study building and select the best two reading of 2TXs lying on the same side of the square case study building among four values of RSS measured from the 4TXs. The results show that, a significant reduction of error is achieved using the proposed method as the range of achieved error is between (0.1091, 0.0061) to (1.7162, 1.6593). While, the such range are from (0.0114, 0.0472) to (1.2685, 2.3207) by using 2TXs. Finally, a validation of achieved error is applied for the results of proposed method applied by real measurements. The results of such validation show that a close measurement to the simulation result is achieved.
室内环境的定位面临着误差率高的问题。为了解决这个问题,选择了一种适合这种环境的双曲方法。此外,当依赖于RSS值时,这种方法会产生很大的误差,因为RSS值的读数不稳定。为了克服这一现象,本研究提出了一种选择合适RSS值的方法。我们的想法是在选定的案例研究大楼中安装4TXs,并在从4TXs测量的四个RSS值中选择位于方形案例研究大楼同一侧的2TXs的最佳两个读数。结果表明,该方法的误差范围在(0.1091,0.0061)~(1.7162,1.6593)之间,误差显著减小。而使用2TXs,该范围从(0.0114,0.0472)到(1.2685,2.3207)。最后,通过实际测量对所提出方法的误差进行了验证。验证结果表明,测量结果与仿真结果非常接近。
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引用次数: 0
Design a Dual Polarizations MIMO Antenna Based on Decoupling Elements for 5G Smart-Phones 基于解耦元件的5G智能手机双极化MIMO天线设计
Q4 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-04-01 DOI: 10.51173/jt.v5i1.901
Haider Saad, Mahmood F. Mosleh, Raed Abd-Alhameed
This paper suggests a compact linear and circular polarization MIMO antenna for sub-6 GHz 5G smartphones. The proposed design can be divided into three parts: Firstly, a linear polarized dipole antenna is presented with dimensions of 1×33.7×32.5mm3 and exhibits an impedance bandwidth (IBW) of 3.24GHz ranging from 3.3GHz to 6.6GHz at S11˂-10dB. The second part includes a circular polarization CPW-Fed antenna with dimensions of 1×23.2×30mm3. The IBW of the CPW antenna is more than 4GHz, starting from 3.9GHz to more than 8GHz at an S11˂-10dB. The 3-dB axial ratio for the CP CPW antenna ranges from 4GHz to 7.38GHz. Finally, a combination of LP and CP antennas is presented to form a dual polarization MIMO system. A MIMO system consists of 5 elements; 4 elements are LP and 1 element is a CP antenna. The size of the MIMO system is 1×82.5×150mm3 printed on an FR-4 substrate. Two impedance bandwidths are found due to the use of two antenna types. The first one (S11, S22, S44, S55) equals 3.44GHz while the second (S33) equals 4.33GHz. HFSS is used for designing and simulating the proposed structures, while CST is used for verifying the results.
本文提出了一种适用于sub-6 GHz 5G智能手机的紧凑型线性和圆极化MIMO天线。提出的设计可分为三个部分:首先,提出了一个尺寸为1×33.7×32.5mm3的线性极化偶极子天线,在S11小于-10dB时,其阻抗带宽(IBW)为3.24GHz,范围为3.3GHz ~ 6.6GHz。第二部分包括尺寸为1×23.2×30mm3的圆极化CPW-Fed天线。CPW天线的IBW大于4GHz,从3.9GHz开始,在S11的小于-10dB的情况下,IBW大于8GHz。CP - CPW天线的3db轴比范围为4GHz ~ 7.38GHz。最后,提出了LP天线和CP天线的组合构成双极化MIMO系统。MIMO系统由5个要素组成;4个单元是LP, 1个单元是CP天线。MIMO系统的尺寸是1×82.5×150mm3打印在FR-4基板上。由于使用两种天线类型,发现了两种阻抗带宽。第一个(S11, S22, S44, S55)等于3.44GHz,第二个(S33)等于4.33GHz。采用HFSS对所提出的结构进行设计和模拟,采用CST对结果进行验证。
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引用次数: 0
Hybrid Lossless Compression Techniques for English Text 英文文本的混合无损压缩技术
Q4 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-04-01 DOI: 10.51173/jt.v5i1.1059
Jannat Tariq, Mahmood F. Mosleh, Maha Abdulameer, Huthaifa A. Obeidat, Omar A. Obeidat
Since the demand for data transfer and storage is always increasing, sending data in its original form will take a long time to send and receive. Compression is an important issue for digital communications systems because it imposes an important rule while reducing complexity and power requirements. The goal of compression is to reduce the file size without compromising the quality of the information, which leads to more capacity saving and reduces the required bandwidth in terms of the communications system. This paper proposes a system that consists of a hybrid of two lossless techniques, including a concatenation of Huffman and LZ4 in order to enhance the traditional techniques. The result of the proposed system demonstrates that the proposed combination techniques reduce the file size significantly, achieving between 73.649 % and 79.708 % in terms of average saving ratio (SR). The above would give us credible, cost-effective, and affordable lossless encoding systems for electronic communication systems.
由于对数据传输和存储的需求不断增加,以原始形式发送数据需要很长时间才能发送和接收。压缩是数字通信系统中的一个重要问题,因为它在降低复杂性和功耗要求的同时施加了重要的规则。压缩的目标是在不影响信息质量的情况下减小文件大小,这样可以节省更多的容量,并减少通信系统所需的带宽。本文提出了一种由两种无损技术的混合组成的系统,包括霍夫曼和LZ4的连接,以增强传统技术。系统结果表明,所提出的组合技术显著减小了文件大小,平均存储量(SR)在73.649% ~ 79.708%之间。以上将为电子通信系统提供可靠、经济、实惠的无损编码系统。
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引用次数: 0
Evaluation of Water Quality at the Confluence Region of Diyala and Tigris Rivers Based on the Weighted Arithmetic Method 基于加权算法的迪亚拉河与底格里斯河汇流区水质评价
Q4 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-04-01 DOI: 10.51173/jt.v5i1.1088
Khadeeja G. Sabeeh, Mustafa T. Mustafa, Alhassan H. Ismail, Corina Boncescu
This study is conducted to assess the water quality index (WQI) of the Diyala and Tigris River confluence region south of Baghdad (Al-Tuwaitha), based on the Weighted Arithmetic method. Sixteen samples of water were collected from different location in the region through two periods 5/11/2021 and 13/3/2022. Water quality parameters such as (PH, EC, TDS, TH, Ca, Mg, Cl, Turbidity, ALK, SO4, HCO3, Na, and K) were used to evaluate WQI in the study area.The final results showed that the water was not suitable for drinking due to the high concentration of water quality parameters. In the 5 November 2021, the water quality in the study area was classified into (good, poor, very poor, and polluted) where the percentages of the above classes were 4%, 6%, 39%, and 51% respectively, while the percentages for the season 13thMarch 2022 were 1%, 41%, and 58% with very poor, polluted, and very polluted class, respectively.The water was not suitable for drinking due to the high concentration of water quality parameters in most locations in the study area.  There are many sources of pollution in the region that dump their harmful waste into the river, which led to increase the concentrations of water quality parameters in most locations of study area.
本文采用加权算法对巴格达以南迪亚拉河与底格里斯河汇合处(Al-Tuwaitha)水质指数进行了评价。在2021年5月11日和2022年3月13日两个时期,从该地区的不同地点收集了16个水样。采用PH、EC、TDS、TH、Ca、Mg、Cl、浊度、ALK、SO4、HCO3、Na、K等水质参数评价研究区WQI。最终结果表明,由于水质参数浓度过高,水质不适合饮用。2021年11月5日,研究区水质分为好、差、极差、污染4个等级,以上等级所占比例分别为4%、6%、39%、51%;2022年3月13日,研究区水质所占比例分别为1%、41%、58%,为极差、污染、严重污染。研究区大部分地点水质参数浓度较高,不适合饮用。区域内污染源较多,将有害废弃物排入河道,导致研究区大部分地点水质参数浓度升高。
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引用次数: 1
Automated Computer Vision System for Urine Color Detection 尿液颜色检测的自动计算机视觉系统
Q4 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-04-01 DOI: 10.51173/jt.v5i1.896
Ban Shamil Abdulwahed, Ali Al-Naji, Izzat Al-Rayahi, Ammar Yahya, Asanka G. Perera
Urine color analysis is one of the most helpful indicators of health status, and any changes in urine color might be a symptom of serious disease, dehydration of the body, or caused by drugs. To get better assistance for urine color detection in the proposed system, a urine color automatic identification has been developed based on computer vision. The proposed system uses a web camera to capture an image in real-time, analyze it, and then classify the color of urine by using the random forest (RF) algorithm and show the result via the Graphical User Interface (GUI). In addition, the proposed system can send the results to the mobile phone of the patient or care provider by using an Arduino microcontroller and GSM module. Moreover, sending a voice message about the color of urine is related to pathological conditions. The results showed that the proposed system has high accuracy (approximately about 97%) in detecting urine color under different light conditions, with low cost, short time, and easy implementation. In the comparison with the current methods the proposed system has maximum accuracy and minimum error rate. This methodology can pave the way for an additional case study in medical applications, particularly in diagnosis, and patient health monitoring.
尿液颜色分析是健康状况最有用的指标之一,尿液颜色的任何变化都可能是严重疾病、身体脱水或药物引起的症状。为了更好地辅助尿液颜色检测,本文开发了一种基于计算机视觉的尿液颜色自动识别系统。该系统利用网络摄像头实时采集图像,对图像进行分析,然后利用随机森林(RF)算法对尿液颜色进行分类,并通过图形用户界面(GUI)显示结果。此外,本文提出的系统可以通过Arduino单片机和GSM模块将检测结果发送到患者或医护人员的手机上。此外,发送有关尿液颜色的语音信息与病理状况有关。结果表明,该系统在不同光照条件下检测尿液颜色具有较高的准确率(约97%),且成本低、时间短、易于实现。与现有方法相比,该方法具有最高的准确率和最小的错误率。这种方法可以为医学应用中的额外案例研究铺平道路,特别是在诊断和患者健康监测方面。
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引用次数: 1
Connect, Collaborate, and Succeed: The Ninth Annual Meeting of the Southeastern Association of Shared Resources (SEASR) Nashville, TN, USA, June 8-10, 2022. 连接、协作和成功:第九届东南共享资源协会年会(SEASR)将于2022年6月8日至10日在美国田纳西州纳什维尔举行。
Q4 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-03-31 DOI: 10.7171/3fc1f5fe.283433d3
Pritha Bagchi, Nawal M Boukli, Natasha Browner, Deidre Daria, Lyra Griffiths, Tania E Mesa, John Phipps, Aaron Pitre, Jenny Schafer, Thayumanasamy Somasundaram, Tiffany N Seagroves

[audio element].

(音频元素)。
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引用次数: 0
Computer Vision System for Facial Palsy Detection 面瘫检测的计算机视觉系统
Q4 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-03-31 DOI: 10.51173/jt.v5i1.1133
Ali Saber Amsalam, Ali Al-Naji, Ammar Yahya Daeef, Javaan Chahl
Facial palsy (FP) is a disorder that affects the seventh facial nerve, which makes the patient unable to control facial movements and expressions with other vital activities. It affects one side of the face, and it is usually diagnosed by the asymmetry of the two sides of the face through visual inspection by a doctor. However, the visual inspection is human-based, which is prone to errors because the doctor is exposed to omission due to fatigue and work stress. Therefore, it is important to develop a new method for detecting FP through artificial intelligence and use a more accurate computerized system to reduce the effort and cost of patients and increase the accuracy of diagnosis. This work  aims to establish a safe, useful and high-accuracy diagnostic system for FP that can be used by the patient and proposes to detect FP using a digital camera and deep learning techniques automatically. The system could be used by the patient himself at home without needing to visit the hospital. The proposed system trained 570 images, including 200 images of FP palsy. The proposed FP system achieved an accuracy of 98%. This confirms the effectiveness of the proposed system and makes it an efficient medical examination tool for detecting FP.
面瘫(FP)是一种影响第七面神经的疾病,使患者无法控制面部运动和其他重要活动的表情。它影响一侧面部,通常由医生通过目视检查通过两侧面部的不对称来诊断。但是,目视检查以人为基础,医生容易因疲劳和工作压力而出现遗漏,容易出现错误。因此,开发一种通过人工智能检测FP的新方法,并使用更精确的计算机化系统来减少患者的工作量和成本,提高诊断的准确性是很重要的。本工作旨在建立一个安全、实用、高精度的FP诊断系统,并提出使用数码相机和深度学习技术自动检测FP。该系统可以由病人自己在家使用,而不需要去医院。该系统训练了570张图像,其中包括200张FP麻痹图像。所提出的FP系统达到了98%的准确率。这证实了该系统的有效性,并使其成为检测FP的有效医学检查工具。
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引用次数: 2
Formability, Mechanical and Chemical Properties Assessment for High Strength AA7075 Subjected to Annealing Heat Treatment 高强度AA7075退火热处理的成形性、力学和化学性能评价
Q4 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-03-31 DOI: 10.51173/jt.v5i1.1107
Naseer Malik Abbas, Zahraa Thamer Abdulwahid, Asmaa Ali Hussien, S.V. Konovalov, Hamid M. Mahan
The current study examined how the annealing process affected the formability, mechanical and chemical characteristics of 7075 alloy. The formability was achieved during the bending test. Tensile, hardness, microstructure and corrosion tests represent mechanical and chemical properties. The test specimens for each test were prepared then followed by annealing heat treatment by heating them to 200 and 300°C in an electrical furnace for two hours. Then, the specimens were allowed to cool in the furnace to a room temperature. The results indicate that the tensile strength and hardness were decreased for about 50%. Bending strength was increased by approximately 30%, where the specimens bent at a very high angle without cracking or breaking in comparison to base metal. Annealing heat treatment with a proper selected procedures and temperatures was able to stabilize the microstructure and release the second phase precipitate particles. Annealing process contributed in improving formability, ductility and corrosion resistance of the Al 7075 alloy.
研究了退火工艺对7075合金成形性能、力学性能和化学性能的影响。在弯曲试验中获得了成形性。拉伸,硬度,微观结构和腐蚀测试代表机械和化学性能。每个试验的试样都准备好,然后在电炉中加热到200°C和300°C两小时进行退火热处理。然后,试样被允许在炉中冷却到室温。结果表明,合金的抗拉强度和硬度降低了50%左右。与母材相比,弯曲强度增加了约30%,其中试样以非常高的角度弯曲而不会开裂或断裂。选择适当的退火热处理工艺和温度可以稳定组织,释放出第二相析出颗粒。退火工艺有助于提高Al 7075合金的成形性、延展性和耐腐蚀性。
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引用次数: 1
Article Watch: April, 2023. 文章观察:2023年4月。
Q4 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-03-31 DOI: 10.7171/3fc1f5fe.d658481f
Clive Slaughter

This column highlights recently published articles that are of interest to the readership of this publication. We encourage ABRF members to forward information on articles they feel are important and useful to Clive Slaughter, AU-UGA Medical Partnership, 1425 Prince Avenue, Athens GA 30606. Tel: (706) 713-2216; Fax: (706) 713-2221; Email: cslaught@uga.edu or to any member of the editorial board. Article summaries reflect the reviewer's opinions and not necessarily those of the Association.

本专栏重点介绍本出版物的读者感兴趣的最近发表的文章。我们鼓励ABRF成员将他们认为重要和有用的文章信息转发给Clive Slaughter, AU-UGA医疗伙伴关系,1425 Prince Avenue, Athens GA 30606。电话:(706)713-2216;传真:(706)713-2221;电子邮件:cslaught@uga.edu或任何编委会成员。文章摘要反映的是审稿人的意见,而不一定是协会的意见。
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引用次数: 0
Computer-Aid System for Automated Jaundice Detection 黄疸自动检测计算机辅助系统
Q4 Biochemistry, Genetics and Molecular Biology Pub Date : 2023-03-31 DOI: 10.51173/jt.v5i1.1128
Ahmad Yaseen Abdulrazzak, Saleem Latif Mohammed, Ali Al-Naji, J. Chahl
At the beginning of their lives, newborns may have a widespread condition known as Jaundice or Hyperbilirubinemia. High levels of bilirubin in the blood are the primary cause of jaundice. Severe cases of jaundice may cause acute bilirubin encephalopathy due to the toxicity of bilirubin to the cells of the brain, which may lead to kernicterus. Kernicterus causes several symptoms, including a permanent upward look, loss of hearing, and repetitive and uncontrolled movements. Therefore, diagnosing this condition at the appropriate time helps to prevent chronic effects. In this study, jaundice or hyperbilirubinemia is diagnosed using a computer vision system based on a random forest algorithm. The system comprises a digital HD camera, a computer device with a Matlab application installed to analyze and detect the skin color changes of the infant, and an Arduino Uno microcontroller to control an LED ultraviolet light. A set of neonate images were collected to train the random forest algorithm, including 374 for normal and 137 for jaundiced infants. |The experimental results using the random forest algorithm for classification reached an accuracy of 98.4375%. The results of this study are promising and open doors for new monitoring applications in various medical diseases detection with a high degree of accuracy.
在他们生命的开始,新生儿可能会有一种被称为黄疸或高胆红素血症的普遍状况。血液中高水平的胆红素是黄疸的主要原因。由于胆红素对大脑细胞的毒性,严重的黄疸可引起急性胆红素脑病,从而可能导致核黄疸。核黄疸会引起一些症状,包括永久性向上看,听力丧失,重复和不受控制的运动。因此,在适当的时候诊断这种情况有助于预防慢性影响。在本研究中,使用基于随机森林算法的计算机视觉系统诊断黄疸或高胆红素血症。该系统包括一个数字高清摄像机,一个装有Matlab应用程序的计算机设备,用于分析和检测婴儿的肤色变化,以及一个Arduino Uno微控制器来控制LED紫外线灯。收集一组新生儿图像用于训练随机森林算法,其中正常婴儿374张,黄疸婴儿137张。|使用随机森林算法进行分类的实验结果达到了98.4375%的准确率。这项研究的结果是有希望的,并为新的监测应用在各种医学疾病的检测中打开了大门。
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引用次数: 1
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Journal of Biomolecular Techniques
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