Qubahan Academic Journal最新文献_第2页

Optimization of Electrical Discharge Machining Process by Metaheuristic Algorithms 用元启发式算法优化放电加工工艺

Qubahan Academic Journal Pub Date : 2024-03-28 DOI: 10.48161/qaj.v4n1a465

Nurezayana Zainal, Mohanavali Sithambranathan, Umar Farooq Khattak, Azlan Mohd Zain, Salama A. Mostafa, Ashanira Mat Deris

{"title":"Optimization of Electrical Discharge Machining Process by Metaheuristic Algorithms","authors":"Nurezayana Zainal, Mohanavali Sithambranathan, Umar Farooq Khattak, Azlan Mohd Zain, Salama A. Mostafa, Ashanira Mat Deris","doi":"10.48161/qaj.v4n1a465","DOIUrl":"https://doi.org/10.48161/qaj.v4n1a465","url":null,"abstract":"Because of its versatility and ability to work with difficult materials, Electrical Discharge Machining (EDM) has become an essential tool in many different industries. It can produce precise shapes and intricate details. EDM has transformed fabrication processes in a variety of industries, including aerospace and electronics, medical implants and surgical instruments, and the shaping of small components. Its capacity to machine undercuts and deep cavities with little material removal makes it ideal for producing complex geometries that would be challenging or impossible to accomplish with conventional machining techniques. Several attempts have been carried out to solve the optimization problem involved in the EDM process. This paper emphasizes optimizing the EDM process using three metaheuristic algorithms: Glowworm Swarm Optimization (GSO), Grey Wolf Optimizer (GWO), and Whale Optimization Algorithm (WOA). The study's outcome showed that the GWO algorithm outperformed the GSO and WOA algorithms in solving the EDM optimization problem and achieved the minimum surface roughness value of 1.7593µm.","PeriodicalId":506292,"journal":{"name":"Qubahan Academic Journal","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140373151","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

Improved Ozone Level Detection through Feature Selection with Modified Whale Optimization Algorithm 利用修改后的鲸鱼优化算法进行特征选择，改进臭氧浓度检测

Qubahan Academic Journal Pub Date : 2024-03-27 DOI: 10.48161/qaj.v4n1a466

Li Yu Yab, Noorhaniza Wahid, Rahayu A Hamid

{"title":"Improved Ozone Level Detection through Feature Selection with Modified Whale Optimization Algorithm","authors":"Li Yu Yab, Noorhaniza Wahid, Rahayu A Hamid","doi":"10.48161/qaj.v4n1a466","DOIUrl":"https://doi.org/10.48161/qaj.v4n1a466","url":null,"abstract":"This study presents a new approach for ozone level detection through feature selection by the modified Whale Optimization Algorithm (mWOA). This study aims to enhance the accuracy and efficiency of ozone level prediction models by selecting the most informative features from the dataset. As air quality deterioration poses significant risks to both human health and ecological equilibrium, pinpointing relevant features becomes essential for boosting prediction accuracy. The scope of the research includes comparing the performance of mWOA with the original WOA in two feature selection techniques: filter-based and wrapper-based. The experiments run proposed approaches on a multivariate time-series dataset with 20 repetitions. The evaluation criteria include processing time, number of features selected, and classification accuracy obtained by the kNN classifier. The statistical results demonstrate the effectiveness of the proposed mWOA approach, outperforming WOA due to the modified control parameter that enables a more precise exploration of the search area. The findings of this study reveal the improved performance of mWOA in selecting informative features, resulting in better prediction on average: 93.75% for filter-based and 94.49% for wrapper-based. In conclusion, the wrapper-based feature selection using the mWOA approach proves to be a valuable asset in enhancing the accuracy and efficiency of ozone level detection models. In the future, the proposed technique can be used for more applications in environmental science and engineering research.","PeriodicalId":506292,"journal":{"name":"Qubahan Academic Journal","volume":"14 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140375134","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

Opportunities to Increase the Efficiency of Universities’ Research and Innovation Activities: Scientometric Evaluation of Researchers' Work under External Information Constraints 提高大学研究与创新活动效率的机遇：外部信息约束下研究人员工作的科学计量评估

Qubahan Academic Journal Pub Date : 2024-03-25 DOI: 10.48161/qaj.v4n1a258

E. Akhmetshin, Sergey Makushkin, Ilyоs Abdullayev, Alexey Yumashev, Artemiy Kozachek, R. Shichiyakh, Denis Shakhov

{"title":"Opportunities to Increase the Efficiency of Universities’ Research and Innovation Activities: Scientometric Evaluation of Researchers' Work under External Information Constraints","authors":"E. Akhmetshin, Sergey Makushkin, Ilyоs Abdullayev, Alexey Yumashev, Artemiy Kozachek, R. Shichiyakh, Denis Shakhov","doi":"10.48161/qaj.v4n1a258","DOIUrl":"https://doi.org/10.48161/qaj.v4n1a258","url":null,"abstract":"The development of research and innovation should be a strategic direction of state policy in the sphere of education. This imposes additional functions connected not only with fundamental and applied research, which is the traditional type of research work of universities, but also with the inclusion of universities' research activities into the unified innovation process of the creation and practical application of new knowledge to obtain new goods or services with new properties. The aim of the article is to determine the ability of international scientometric databases to assess the research and innovation activity of Russian universities. The key research method is regression analysis used to establish the relationship between the Hirsch index values for research papers in the Scopus and Google Scholar databases. The paper shows the possibility and expediency of using Google Scholar to evaluate the results of research and innovation activities of medical universities' faculty. This allows increasing the efficiency of the scientometric evaluation of researchers under external information constraints. This corresponds well to the principles of functioning of an entrepreneurial university. The advantage of Google Scholar is the consideration of Russian-language publications in the indexing.","PeriodicalId":506292,"journal":{"name":"Qubahan Academic Journal","volume":" 42","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140384362","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

Exploring Teachers’ Perceptions of EFL Students’ Engagement in Collaborative Learning: Implementation Issues and Suggestions 探索教师对 EFL 学生参与协作学习的看法：实施问题与建议

Qubahan Academic Journal Pub Date : 2024-03-25 DOI: 10.48161/qaj.v4n1a383

Ali Abbas Falah Alzubi, Mohd Nazim, Jalal Ahmad

{"title":"Exploring Teachers’ Perceptions of EFL Students’ Engagement in Collaborative Learning: Implementation Issues and Suggestions","authors":"Ali Abbas Falah Alzubi, Mohd Nazim, Jalal Ahmad","doi":"10.48161/qaj.v4n1a383","DOIUrl":"https://doi.org/10.48161/qaj.v4n1a383","url":null,"abstract":"The evolving landscape of collaborative learning in English education for the last two decades has witnessed a notable research surge in diverse contexts. Nevertheless, empirical evidence suggests a noticeable dearth of attention or very limited emphasis, particularly within the setting of Arabic-native speaking countries on exploring English teachers’ perceptions concerning students' engagement in collaborative learning. Therefore, this study aims to identify teachers’ perceptions of EFL students’ engagement in collaborative learning with a special reference to implementation issues and solutions to address the challenges. The descriptive survey design was employed to attain the study objectives. A sample of (45) EFL teachers chosen following the convenient sampling method answered a closed-item questionnaire and did an interview. The results revealed that EFL teachers highly perceived implementing collaborative learning among university students in EFL classrooms. Also, the respondents’ teaching experiences did not impact their perceptions of implementing collaborative learning in EFL classrooms. In addition, gender did not play any role in affecting the respondents’ answers to implementing collaborative learning in EFL classrooms. Finally, the analysis of interview contents showed that the problems that teachers face in implementing collaborative learning include diverse language proficiency, cultural differences, impartial participation, personal conflicts, limited class time, access to resources, and lack of professional development. Additionally, the participants suggested differentiated teaching, encouraged participation, efficient time management, language skill grouping, and EFL-specific teacher training to make a collaborative learning environment effective.","PeriodicalId":506292,"journal":{"name":"Qubahan Academic Journal","volume":" September","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140383354","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

Neuro-linguistic Programming and Its Relationship with Psychological Flexibility Among Secondary School Students in Najran Region 神经语言程序学及其与纳季兰地区中学生心理灵活性的关系

Qubahan Academic Journal Pub Date : 2024-03-24 DOI: 10.48161/qaj.v4n1a379

Ahmed Mohamed Bani Ismail, Faisal Jaber Al-Ajmi

{"title":"Neuro-linguistic Programming and Its Relationship with Psychological Flexibility Among Secondary School Students in Najran Region","authors":"Ahmed Mohamed Bani Ismail, Faisal Jaber Al-Ajmi","doi":"10.48161/qaj.v4n1a379","DOIUrl":"https://doi.org/10.48161/qaj.v4n1a379","url":null,"abstract":"There is an increasing interest in Neuro-linguistic Programming (NLP) and its impact on teaching and learning. Exploring its use as a supportive method to enhance students' capabilities is crucial. Through the literature review concerning NLP, its role in PF, and student learning, it is evident that it has not been examined. The current study aims to investigate the relationship between Neuro-linguistic Programming (NLP) and Psychological Flexibility (PF) levels among high school students in Najran region. The study sample consisted of 634 male and female students, selected using convenience sampling. The NLP scale by Abu-Ruman [1] and the PF scale by Singh and Nan yu [2] were utilized after ensuring their validity and reliability. The study results revealed a low level of NLP and a high level of PF among high school students in Najran Region. In addition, the results indicated a significant correlation between NLP (as a whole and its dimensions) and PF. Studying NLP and its connection to PF in secondary school students can contribute to improving educational programs and psychological interventions aimed at supporting students in developing language skills and psychological adaptation. This connection can help students enhance their communication and adaptability to psychological and social challenges. In addition, this relationship can lead to the development of more effective educational and psychological support strategies for students in this crucial stage of their lives.","PeriodicalId":506292,"journal":{"name":"Qubahan Academic Journal","volume":" 13","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140385448","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

Enhancing IoT Network Security Through Digital Object Architecture-Based Approaches 通过基于数字对象架构的方法增强物联网网络安全

Qubahan Academic Journal Pub Date : 2024-03-24 DOI: 10.48161/qaj.v4n1a413

M. Al-Bahri, Wasin AlKishri, Falah Y. H. Ahmed, Marwan Alshar’e, Sanad Al Maskari

{"title":"Enhancing IoT Network Security Through Digital Object Architecture-Based Approaches","authors":"M. Al-Bahri, Wasin AlKishri, Falah Y. H. Ahmed, Marwan Alshar’e, Sanad Al Maskari","doi":"10.48161/qaj.v4n1a413","DOIUrl":"https://doi.org/10.48161/qaj.v4n1a413","url":null,"abstract":"The Internet of Things (IoT) encompasses a network of different devices, both stationary and mobile, that may interact with the physical world. Ensuring the security of the Internet of Things (IoT) is of utmost importance in a world where devices are interconnected at various levels, including wearables, home automation, smart cities, industrial sectors, and more. Ensuring the security of this interconnected network of \"things\" and devices is imperative, leaving no space for mistakes or inadequacies. The purpose of this article is to present an approach that utilizes Digital Object Architecture (DOA) to identify Internet of Things (IoT) devices and applications within communication networks. This study investigates various methodologies for incorporating the DOA identifier into Internet of Things (IoT) devices that are equipped with a range of wireless data transmission modules. Furthermore, this study presents a security model that aims to strengthen the resolution system based on data transmission security. The objective is to reduce the number of service messages exchanged between internetwork parts and decrease network latency. The essay finishes by examining some strategies for modernizing DOA in order to improve the quality of service.","PeriodicalId":506292,"journal":{"name":"Qubahan Academic Journal","volume":" 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140385638","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

Navigating Innovation Highways: Unraveling the Entrepreneurial Culture's Role with Knowledge Management as the Mediator in Automotive Technology Innovations 驾驭创新高速公路：以知识管理为中介，揭示创业文化在汽车技术创新中的作用

Qubahan Academic Journal Pub Date : 2024-02-29 DOI: 10.48161/qaj.v4n1a290

K. Sumathi, Prabir Chandra Padhy

{"title":"Navigating Innovation Highways: Unraveling the Entrepreneurial Culture's Role with Knowledge Management as the Mediator in Automotive Technology Innovations","authors":"K. Sumathi, Prabir Chandra Padhy","doi":"10.48161/qaj.v4n1a290","DOIUrl":"https://doi.org/10.48161/qaj.v4n1a290","url":null,"abstract":"The electric vehicle (e-vehicle) automotive sector in India has been undergoing substantial expansion and metamorphosis, propelled by reasons like governmental regulations, ecological considerations, and technological progress. The objective of this study is to determine the impact of entrepreneurial Culture on technical innovation in the e-vehicle automobile business, while also examining the role of knowledge management as a mediator. Employing a cross-sectional design, data for analysis were gathered using a questionnaire technique from managers and employees of six e-vehicle automobile industries in India. Despite distributing 500 questionnaires, the study received responses from 53 managers and 332 employees. Utilizing the PLS-SEM approach, the research reveals the positive influence of an entrepreneurial culture on technological innovation. Moreover, it highlights the partial mediation effect of knowledge management in the relationship between entrepreneurial culture and technology innovation. These findings carry substantial implications for businesses in the e-vehicle sector aiming to enhance their innovation capabilities by fostering an entrepreneurial culture and implementing effective knowledge management techniques.","PeriodicalId":506292,"journal":{"name":"Qubahan Academic Journal","volume":"13 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140412850","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 Antecedents of Online Purchase Intention During Covid-19: A Serial Mediation Approach Covid-19 期间网购意向的前因：串联调解法

Qubahan Academic Journal Pub Date : 2024-02-29 DOI: 10.48161/qaj.v4n1a359

S. Dheepalakshmi, R. Geetha

引用次数: 0

Rejection of the Covid-19 Vaccination in Community Sidourip Village-Beringin District 贝宁地区 Sidourip 村拒绝接受 Covid-19 疫苗接种的情况

Qubahan Academic Journal Pub Date : 2024-02-24 DOI: 10.48161/qaj.v4n1a209

Nanda Novziransyah, Budi Kurniawan, Mayasari Rahmadhani, Ira Aini Dania, Dewi Pangestuti, M. R

{"title":"Rejection of the Covid-19 Vaccination in Community Sidourip Village-Beringin District","authors":"Nanda Novziransyah, Budi Kurniawan, Mayasari Rahmadhani, Ira Aini Dania, Dewi Pangestuti, M. R","doi":"10.48161/qaj.v4n1a209","DOIUrl":"https://doi.org/10.48161/qaj.v4n1a209","url":null,"abstract":": Covid-19 is currently a global concern, with the number of cases increasing daily. Indonesia has the highest rate of confirmed cases in Southeast Asia. The Covid-19 vaccine is one of the government's breakthroughs in the control and management of Covid-19. The aim of Covid-19 vaccination is to reduce spread, morbidity and mortality, achieve immunity and protect the public. However, there are still many groups of people who refuse to be vaccinated. The main objective is to determine the factors associated with community refusal of Covid-19 vaccination in Sidourip village, Beringin district in 2021. Methods are observational-analytical studies with cross-sectional design. Sample size was determined using a convenience sampling method with a sample of 83 people. Relationship between age and community refusal of Covid-19 vaccine p value = 0.003 (p≤0.05). Relationship between work and community refusal of Covid-19 vaccine p value = 0.007 (p≤0.05). Relationship between level of education and community refusal of Covid-19 vaccine p value = 0.000 (p≤0.05). The conclusion is that there is a relationship between age, occupational status and level of knowledge with community rejection of Covid-19 vaccine in Sidourip village, Beringin district in 2021.","PeriodicalId":506292,"journal":{"name":"Qubahan Academic Journal","volume":"6 s1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140434944","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

Active Compounds of Red Ginger as Antioxidant Activity in the Supplementation and Treatment of Depression 红姜活性化合物在补充和治疗抑郁症中的抗氧化作用

Qubahan Academic Journal Pub Date : 2024-02-24 DOI: 10.48161/qaj.v4n1a208

Ira Aini Dania, Rusdiana Rusdiana, Aldy S. Rambe, Urip Harahap, E. Effendy, Nanda Novziransyah

{"title":"Active Compounds of Red Ginger as Antioxidant Activity in the Supplementation and Treatment of Depression","authors":"Ira Aini Dania, Rusdiana Rusdiana, Aldy S. Rambe, Urip Harahap, E. Effendy, Nanda Novziransyah","doi":"10.48161/qaj.v4n1a208","DOIUrl":"https://doi.org/10.48161/qaj.v4n1a208","url":null,"abstract":"This study examined compound active of red ginger related for supplementation and treatment of depression. Depression prevalence in Indonesia from the national population survey 6.9% had severe depression symptoms, 21.8% moderate to severe. Red ginger provided gold potential and demonstrated prominent natural phenomena and coexistence, abundant benefits. Standard herbal medicine and phytopharmaceuticals as one effort in dealing with depression disorder. Problem Statement. The use of medicines for depression disorder in the long term becomes a serious problem affecting various sectors and needs to be thought of side effects and complications. Objective. Antioxidants in red ginger (Zingiber Officinale Rosc. Var Rubrum has a secondary metabolite considered for treatment or supplementation in depression disorders. This study was experimental analytical study for analyzing secondary metabolism using phytochemical screening tests and examining active compounds with the combination of liquid chromatography with tandem mass spectrometry (LCMS/MS).Red ginger extracts contain secondary metabolic flavonoids of 48.79 mgQE/g, phenol 92.73 mgGAE/G and antioxidants of 39.96 ppm. Establishment of the active compound that has an effect as an antioxidant α-Eleostearic acid (C18 H30 O2) chemspider result 10, mzcloud 96, L Histidine (C6 H9 N3 O2) chemspiders result 6, mzcloud 94,8. Tetrahydrocurcumin (C21 H24 O6) chemspider result 41, mzcloud 92,5. Active compounds of red ginger antioxidants are diarylheptanoid, phenylbutenoid, flavonoid, diterpenoide, sesquiterpenoid, gingerol and shogaol. Red ginger extract content of active flavonoid compounds and has an effect as an antioxidant is potentially used as a supplement in the treatment of depression disorders.","PeriodicalId":506292,"journal":{"name":"Qubahan Academic Journal","volume":"63 11‐12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140434146","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