ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY最新文献_第10页

Efficient Kinect Sensor-based Kurdish Sign Language Recognition Using Echo System Network 基于Kinect传感器的回声系统网络库尔德手语识别

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ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY Pub Date : 2021-10-13 DOI: 10.14500/ARO.10827

Samia Mirza, Abdulbasit K. Al-Talabani

{"title":"Efficient Kinect Sensor-based Kurdish Sign Language Recognition Using Echo System Network","authors":"Samia Mirza, Abdulbasit K. Al-Talabani","doi":"10.14500/ARO.10827","DOIUrl":"https://doi.org/10.14500/ARO.10827","url":null,"abstract":"Sign language assists in building communication and bridging gaps in understanding. Automatic sign language recognition (ASLR) is a field that has recently been studied for various sign languages. However, Kurdish sign language (KuSL) is relatively new and therefore researches and designed datasets on it are limited. This paper has proposed a model to translate KuSL into text and has designed a dataset using Kinect V2 sensor. The computation complexity of feature extraction and classification steps, which are serious problems for ASLR, has been investigated in this paper. The paper proposed a feature engineering approach on the skeleton position alone to provide a better representation of the features and avoid the use of all of the image information. In addition, the paper proposed model makes use of recurrent neural networks (RNNs)-based models. Training RNNs is inherently difficult, and consequently, motivates to investigate alternatives. Besides the trainable long short-term memory (LSTM), this study has proposed the untrained low complexity echo system network (ESN) classifier. The accuracy of both LSTM and ESN indicates they can outperform those in state-of-the-art studies. In addition, ESN which has not been proposed thus far for ASLT exhibits comparable accuracy to the LSTM with a significantly lower training time.","PeriodicalId":8398,"journal":{"name":"ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY","volume":"9 1","pages":"1-9"},"PeriodicalIF":0.6,"publicationDate":"2021-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42935007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Chemical Characterization and Antidiabetic Activity of Essential Oils from Pelargonium graveolens Leaves 天竺葵叶精油的化学性质及抗糖尿病活性研究

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ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY Pub Date : 2021-06-30 DOI: 10.14500/aro.10791

Javed Ahamad, Subasini Uthirapathy

{"title":"Chemical Characterization and Antidiabetic Activity of Essential Oils from Pelargonium graveolens Leaves","authors":"Javed Ahamad, Subasini Uthirapathy","doi":"10.14500/aro.10791","DOIUrl":"https://doi.org/10.14500/aro.10791","url":null,"abstract":"Pelargonium graveolens (Geranium) is a source of the finest quality of fragrance and its essential oils are used as antibacterial, and antifungal agents. The aim of the current research is to determine chemical constituents in the essential oil of P. graveolens by GC-MS and evaluate its antidiabetic activity via α-glucosidase inhibition assay. The chemical composition of P. graveolens essential oil was determined by GC/MS and its antidiabetic activity was assessed through inhibition of α-glucosidase enzyme in in-vitro models. GC-MS analysis determines 36 chemical components in the essential oil of P. graveolens leaves, and citronellyl isovalerate (10.41 %), menthol (9.61 %), linalool (8.63 %), p-menthone (6.31 %), and geranyl tiglate (4.99 %) were recorded as major constituents. The essential oil of P. graveolens leaves showed concentration dependant inhibition of α-glucosidase enzyme ranging from 28.13±1.41 to 74.24±2.53 µg/mL for concentration ranging from 31.25 to 1000 µg/mL. The IC50 values for of P. graveolens and acarbose were found as 93.72±4.76 and 80.4±2.17 µg/mL, respectively against the α-glucosidase enzyme. The study finding explores the chemical components of P. graveolens growing in the Iraqi Kurdistan region and scientifically supported its possible use in diabetic patients for controlling postprandial hyperglycemia.","PeriodicalId":8398,"journal":{"name":"ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY","volume":"180 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76946065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

A Comparative Study of Electrical Characterization of P-Doped Distributed Bragg Reflectors Mirrors for 1300 nm Vertical Cavity Semiconductor Optical Amplifiers 1300nm垂直腔半导体光放大器中掺p分布Bragg反射镜电学特性的比较研究

IF 0.6

ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY Pub Date : 2021-06-03 DOI: 10.14500/ARO.10741

F. Chaqmaqchee

引用次数: 3

Evaluation of Flying Ad Hoc Network Topologies, Mobility Models, and IEEE Standards for Different Video Applications 针对不同视频应用的飞行Ad Hoc网络拓扑、移动性模型和IEEE标准的评估

IF 0.6

ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY Pub Date : 2021-05-08 DOI: 10.14500/ARO.10764

Ghassan A. QasMarrogy

{"title":"Evaluation of Flying Ad Hoc Network Topologies, Mobility Models, and IEEE Standards for Different Video Applications","authors":"Ghassan A. QasMarrogy","doi":"10.14500/ARO.10764","DOIUrl":"https://doi.org/10.14500/ARO.10764","url":null,"abstract":"Nowadays, drones became very popular with the enhancement of the technological progress of moving devices with a connection to each other, known as Flying Ad Hoc Network (FANET). It is used in most worldwide necessary life scenarios such as video recording, search and rescue, military missions, moving items between different areas, and many more. This leads to the necessity to evaluate different network strategies between these flying drones, which are essential to improve their quality of performance in the field. Several challenges must be addressed to effectively use FANET, to provide stable and reliable transmission for different types of data during vast changing topologies, such as different video sizes, different types of mobility models, recent Wireless Fidelity standards, types of routing protocols used, security problems, and many more. In this paper, a fully comprehensive analysis of FANET will be done to evaluate and enhance these challenges that concern different video types, mobility models, and IEEE 802.11n standards for best performance, by measuring throughput, retransmission attempt, and delay metrics. The result shows that Gauss–Markov mobility model gives the highest result using Ad Hoc On-Demand Vector and lowest delay, whereas for retransmission attempts, 2.4 GHz frequency has the lowest as it can reach more coverage area than 5 GHz.","PeriodicalId":8398,"journal":{"name":"ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY","volume":"9 1","pages":"77-88"},"PeriodicalIF":0.6,"publicationDate":"2021-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47442392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Design and Construction of Zana Robot for Modeling Human Player in Rock-paper-scissors Game using Multilayer Perceptron, Radial basis Functions and Markov Algorithms 基于多层感知器、径向基函数和马尔可夫算法的Zana机器人设计与构建

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ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY Pub Date : 2021-03-08 DOI: 10.14500/ARO.10757

Maryam Ghasemi, A. Roshani, Peshawa Jamal Muhammad Ali, F. F. Nia, Ehsan Nazemi, G. Roshani

{"title":"Design and Construction of Zana Robot for Modeling Human Player in Rock-paper-scissors Game using Multilayer Perceptron, Radial basis Functions and Markov Algorithms","authors":"Maryam Ghasemi, A. Roshani, Peshawa Jamal Muhammad Ali, F. F. Nia, Ehsan Nazemi, G. Roshani","doi":"10.14500/ARO.10757","DOIUrl":"https://doi.org/10.14500/ARO.10757","url":null,"abstract":"–In this paper, the implementation of artificial neural networks (multilayer perceptron [MLP] and radial base functions [RBF]) and the upgraded Markov chain model have been studied and performed to identify the human behavior patterns during rock, paper, and scissors game. The main motivation of this research is the design and construction of an intelligent robot with the ability to defeat a human opponent. MATLAB software has been used to implement intelligent algorithms. After implementing the algorithms, their effectiveness in detecting human behavior pattern has been investigated. To ensure the ideal performance of the implemented model, each player played with the desired algorithms in three different stages. The results showed that the percentage of winning computer with MLP and RBF neural networks and upgraded Markov model, on average in men and women is 59%, 76.66%, and 75%, respectively. Obtained results clearly indicate a very good performance of the RBF neural network and the upgraded Markov model in the mental modeling of the human opponent in the game of rock, paper, and scissors. In the end, the designed game has been employed in both hardware and software which include the Zana intelligent robot and a digital version with a graphical user interface design on the stand. To the best knowledge of the authors, the precision of novel presented method for determining human behavior patterns was the highest precision among all of the previous studies.","PeriodicalId":8398,"journal":{"name":"ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY","volume":"9 1","pages":"67-76"},"PeriodicalIF":0.6,"publicationDate":"2021-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44573459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Assessment of Acoustical Characteristics for Recent Mosque Buildings in Erbil City of Iraq 伊拉克埃尔比勒市近期清真寺建筑声学特性评价

IF 0.6

ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY Pub Date : 2021-03-01 DOI: 10.14500/ARO.10784

D. A. A. Masih, Nawzad K. Jalal, Manar N. A. Mohammed, Sulaiman A. Mustafa

{"title":"The Assessment of Acoustical Characteristics for Recent Mosque Buildings in Erbil City of Iraq","authors":"D. A. A. Masih, Nawzad K. Jalal, Manar N. A. Mohammed, Sulaiman A. Mustafa","doi":"10.14500/ARO.10784","DOIUrl":"https://doi.org/10.14500/ARO.10784","url":null,"abstract":"The study of mosque acoustics, concerning acoustical features, sound quality for speech intelligibility, and additional practical acoustic criteria, is commonly overlooked. Acoustic quality is vital to the fundamental use of mosques, in terms of contributing toward prayers and worshippers’ appreciation. This paper undertakes a comparative analysis of the acoustic quality level and the acoustical characteristics for two modern mosque buildings constructed in Erbil city. This work investigates and examines the acoustical quality and performance of these two mosques and their prayer halls through room simulation using ODEON Room Acoustics Software, to assess the degree of speech intelligibility according to acoustic criteria relative to the spatial requirements and design guidelines. The sound pressure level and other room-acoustic indicators, such as reverberation time (T30), early decay time, and speech transmission index, are tested. The outcomes demonstrate the quality of acoustics in the investigated mosques during semi-occupied and fully-occupied circumstances. The results specify that the sound quality within the both mosques is displeasing as the loudspeakers were off.","PeriodicalId":8398,"journal":{"name":"ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY","volume":"9 1","pages":"51-66"},"PeriodicalIF":0.6,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44405481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of the Upstream Slope Stability of Darbandikhan Rockfill Dam during Drawdown Darbandikhan堆石坝下游边坡在溃坝过程中的稳定性评价

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ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY Pub Date : 2021-03-01 DOI: 10.14500/ARO.10678

Sirwan Gh. Salim, K. M. Noori

引用次数: 1

Determination of Multi-performance Characteristics in Electric Discharge Machining of DIN 1.2767 Steel Using Grey Relational Analysis 用灰色关联分析法确定DIN 1.2767钢电火花加工的多性能特性

IF 0.6

ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY Pub Date : 2021-03-01 DOI: 10.14500/ARO.10718

Abubaker Y. Fatatit, A. Kalyon

{"title":"Determination of Multi-performance Characteristics in Electric Discharge Machining of DIN 1.2767 Steel Using Grey Relational Analysis","authors":"Abubaker Y. Fatatit, A. Kalyon","doi":"10.14500/ARO.10718","DOIUrl":"https://doi.org/10.14500/ARO.10718","url":null,"abstract":"Electric discharge machining (EDM) is one of the most important unconventional machining processes, which can cut hard materials and complex shapes that are difficult to machine by conventional machining processes easily and with high accuracy. In this study, L18 orthogonal array combined with gray relational analysis (GRA) is implemented to investigate the multiple performances characteristics in EDM of DIN 1.2767 Tool Steel. Machining process parameters selected were discharge current (Ip), pulse-on time (Ton), pulse-off time (Toff), and electrode material (copper alloys [NSS and B2]). The investigated performances characteristics were tool wear rate (TWR) and material removal rate (MRR). Analysis of variance (ANOVA) and Taguchi’s signal-to-noise ratio with the help of Minitab-17 software were used to analysis the effect of the process parameters on TWR and MRR. The experimental results and data analysis reveal that TWR and MRR are more affected by Ip and Ton. The minimum TWR was obtained at parametric combination Ip (6A), Ton (800 μs), and Toff (800 μs) and the maximum MRR attained at Ip (25A), Ton (800 μs), Toff (200 μs), and NSS electrode. After applying GRA, the optimal parametric combination for MRR and TWR was determined as Ip (25A), Ton (800 μs), Toff (200 μs), and NSS electrode. The study also exhibited the occurrence of an interaction between the variables on the responses. In addition, scanning electron microscopy images showed that the metal surface was affected with the increase in Ton and Toff.","PeriodicalId":8398,"journal":{"name":"ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY","volume":"9 1","pages":"1-7"},"PeriodicalIF":0.6,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45471824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Sand Percentage on the Compaction Properties and Undrained Shear Strength of Low Plasticity Clay 掺砂量对低塑性粘土压实特性及不排水抗剪强度的影响

IF 0.6

ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY Pub Date : 2021-03-01 DOI: 10.14500/ARO.10748

Iyad Alkroosh, Ali Al-Robay, P. Sarker, Saif Alzabeebee

引用次数: 2

Corrosion in Crude Oil Distillation Unit Overhead: A recent Case Study 原油蒸馏装置顶部腐蚀:最近的一个案例研究

IF 0.6

ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY Pub Date : 2021-03-01 DOI: 10.14500/ARO.10711

Arif Ahmed

{"title":"Corrosion in Crude Oil Distillation Unit Overhead: A recent Case Study","authors":"Arif Ahmed","doi":"10.14500/ARO.10711","DOIUrl":"https://doi.org/10.14500/ARO.10711","url":null,"abstract":"Despite all the technological advances and the control mechanisms that exist today to achieve the control of corrosion in overhead systems in atmospheric crude oil distillation units, there is still a high level of difficulty in predicting the phenomenon due to the complexity of the chemical compounds involved in the entire process. The study of this practical case aims to determine what control mechanisms should be optimized in a refinery located in the Autonomous Region of Iraqi Kurdistan to prevent corrosion phenomena’s in this specific system and how it should be done to achieve these improvements. It has been suggested that the corrosion mechanisms by hydrochloric acid and by ammonium chloride have been those that have acted in the operational context of the mentioned facility. To test this hypothesis, a study of the unit’s operational conditions and analytical tests were carried out on the construction material of various components and the products (sediments) found inside the tower. The results show that a lack of control in the salts and sediments content of the feed crude have caused an increase in the hydrolysis process of certain components upstream of the tower and thus the generation of acids and salts was promoted. On this basis, it is necessary to optimize the primary treatment of crude oil and update the chemical treatments and washing water systems to adapt to the new conditions of the feed of the refinery.","PeriodicalId":8398,"journal":{"name":"ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY","volume":"9 1","pages":"21-27"},"PeriodicalIF":0.6,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46453611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3