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Prediction of Corrosion Inhibition Efficiency Based on Machine Learning for Pyrimidine Compounds: A Comparative Study of Linear and Non-linear Algorithms 基于机器学习的嘧啶化合物腐蚀抑制效率预测:线性和非线性算法的比较研究
Pub Date : 2024-03-07 DOI: 10.18502/keg.v6i1.15350
Wise Herowati, Wahyu Aji Eko Prabowo, Muhamad Akrom, T. Sutojo, Noor Ageng Setiyanto, Achmad Wahid Kurniawan, Novianto Nur Hidayat, S. Rustad
The corrosion of materials poses a significant challenge in various industries, leading to substantial economic impacts. In this context, pyrimidine compounds emerge as promising, non-toxic, cost-effective, and versatile corrosion inhibitors. However, conventional methods for identifying such inhibitors are typically time-consuming, expensive, and labor-intensive. Addressing this challenge, our study leverages machine learning (ML) to predict pyrimidine compounds corrosion inhibition efficiency (CIE). Using a quantitative structure-property relationship (QSPR) model, we compared 14 linear and 12 non-linear ML algorithms to identify the most accurate predictor of CIE. The bagging regressor model demonstrated superior performance, achieving a root mean square error (RMSE) of 5.38, a mean square error (MSE) of 28.93, a mean absolute error (MAE) of 4.23, and a mean absolute percentage error (MAPE) of 0.05 in predicting the CIE values for pyrimidine compounds. This research marks a significant advancement in corrosion science, offering a novel and efficient ML-based approach as an alternative to traditional experimental methods. It shows that machine learning can quickly and accurately determine how well organic chemical inhibitors like pyrimidine stop material corrosion. This method gives the industry a new perspective and a workable solution to a problem that has existed for a long time. Keywords: machine learning, corrosion inhibition, pyrimidine, QSPR model, predictive analysis
材料腐蚀是各行各业面临的一项重大挑战,会对经济产生重大影响。在这种情况下,嘧啶化合物成为一种前景广阔、无毒、成本效益高且用途广泛的腐蚀抑制剂。然而,鉴定此类抑制剂的传统方法通常耗时、昂贵且劳动密集。为了应对这一挑战,我们的研究利用机器学习(ML)来预测嘧啶化合物的缓蚀效率(CIE)。利用定量结构-性质关系(QSPR)模型,我们比较了 14 种线性和 12 种非线性 ML 算法,以确定最准确的 CIE 预测因子。在预测嘧啶化合物的 CIE 值时,袋化回归模型表现出卓越的性能,均方根误差 (RMSE) 为 5.38,均方误差 (MSE) 为 28.93,平均绝对误差 (MAE) 为 4.23,平均绝对百分比误差 (MAPE) 为 0.05。这项研究标志着腐蚀科学的重大进展,提供了一种新颖高效的基于 ML 的方法来替代传统的实验方法。它表明,机器学习可以快速、准确地确定嘧啶等有机化学抑制剂阻止材料腐蚀的效果。这种方法为业界提供了一个新的视角,并为一个存在已久的问题提供了可行的解决方案。关键词:机器学习、缓蚀剂、嘧啶、QSPR 模型、预测分析
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引用次数: 0
Virtual Reality (VR) and Digital Storytelling (DS) Technology to Improve English Speaking Skills of Vocational Students 虚拟现实(VR)和数字故事(DS)技术提高职业院校学生的英语口语技能
Pub Date : 2024-03-07 DOI: 10.18502/keg.v6i1.15380
Ince Dian Aprilyani Azir, Widi Sriyanto, Nurianti Sitorus, Feransi Anggria
In an era characterized by globalization and digitalization, proficiency in English is a vital skill, particularly for vocational students specializing in multimedia fields. This research provides a concise overview of a study that investigates the use of virtual reality (VR) and digital storytelling (DS) technology as innovative tools to enhance the English-speaking skills of vocational multimedia students. This study aims to assess the efficacy of VR and DS technology in improving the English-speaking abilities of vocational multimedia students, exploring their potential to provide immersive language learning experiences and foster creativity and engagement. The integration of VR and DS technology into English language instruction can play a pivotal role in improving the speaking skills of vocational multimedia students. These technologies offer immersive experiences and creative opportunities that not only enhance language skills but also prepare students for success in a digitally driven, globally connected workforce. Keywords: virtual reality, business model, entrepreneurial mindset
在以全球化和数字化为特征的时代,熟练掌握英语是一项至关重要的技能,尤其是对于多媒体专业的职业学生而言。本研究简要概述了一项调查虚拟现实(VR)和数字故事(DS)技术作为创新工具用于提高多媒体职业学生英语口语技能的研究。本研究旨在评估虚拟现实和数字故事技术在提高职业多媒体学生英语口语能力方面的功效,探索它们在提供身临其境的语言学习体验、培养创造力和参与度方面的潜力。将 VR 和 DS 技术整合到英语教学中,对提高职业多媒体学生的口语能力具有举足轻重的作用。这些技术提供了身临其境的体验和创造机会,不仅能提高语言技能,还能帮助学生为在数字驱动、全球互联的劳动力大军中取得成功做好准备。关键词:虚拟现实、商业模式、创业心态
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引用次数: 0
Mobile-augmented Reality for Improving Student Entrepreneurial Mindset By Business Model Canvas 通过商业模式画布改善学生创业心态的移动增强现实技术
Pub Date : 2024-03-07 DOI: 10.18502/keg.v6i1.15400
Maria Ulfah Catur Afriasih, Rina Watye, Rahmi Annissa, Dwi Mandasari
Modern humans’ existence is characterized by advances in information, communication, and technology. In the current digital era, augmented reality is one method that can be utilized to encourage learning. This study aims to establish how quickly The Business Model Canvas should be introduced through augmented reality to promote an entrepreneurial mindset for student. The methodology used is a survey of the literature, with a particular emphasis on cellular AR for learning and its use in cultural preservation. The exploratory mixed method is used. Researchers investigated data using a qualitative approach and analyzed it using a quantitative technique to generate measurements linked to the efficacy of augmented reality. Exploratory use is thought to be appropriate for developing new theories as well as testing existing ones. The method is called a systematic literature review (SLR). The SLR process includes the processes of problem formulation, information collecting and analysis, interpretation, arranging, and presentation. Using the Search Method Process (SP), data was gathered. Based on the findings of student trials, it is evident that the mobile-augmented reality produced increases student learning outcomes, which is consistent with the findings of Hsu, Wenting, and Hughes’ research. Therefore, mobile-augmented reality has the potential to boost interest in entrepreneurship education. Mobile-augmented reality is expected to increase student attention in entrepreneurship. Keywords: mobile augmented reality, business model, entrepreneurial
现代人类生存的特点是信息、通信和技术的进步。在当前的数字时代,增强现实技术是一种可以用来鼓励学习的方法。本研究旨在确定应如何通过增强现实技术快速引入 "商业模式画布",以促进学生的创业思维。本研究采用的方法是文献调查法,特别强调增强现实技术在学习和文化保护中的应用。研究采用了探索性混合方法。研究人员使用定性方法调查数据,并使用定量技术分析数据,从而得出与增强现实技术的功效相关的测量结果。探索性方法被认为适用于发展新理论和检验现有理论。这种方法被称为系统文献综述(SLR)。系统文献综述过程包括问题提出、信息收集和分析、解释、整理和展示。利用搜索方法过程(SP)收集数据。根据学生的试验结果,移动增强现实技术明显提高了学生的学习效果,这与 Hsu、Wenting 和 Hughes 的研究结果一致。因此,移动增强现实技术有可能提高人们对创业教育的兴趣。移动增强现实技术有望提高学生对创业的关注度。关键词:移动增强现实、商业模式、创业
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引用次数: 0
Enhancing English Competence Based on TOEFL Result with the Use of the Expert System with Forward Chaining Method 利用前向连锁法专家系统提高基于托福成绩的英语能力
Pub Date : 2024-03-07 DOI: 10.18502/keg.v6i1.15352
Liza Amalia Putri, H. Nurrahmi, Xirui Chu
This article delves into a progressive approach for enhancing English competence based on TOEFL results through the utilization of an expert system employing the forward chaining method. As a benchmark for English proficiency, TOEFL necessitates a strategic and personalized approach to address individual weaknesses. The proposed expert system analyzes TOEFL performance, identifies specific areas of improvement, and tailors learning pathways accordingly. By employing forward chaining, the system can effectively guide learners through a logical progression of targeted exercises, tailored study plans, and recommended resources to fortify identified language skill deficits. This article sheds light on how this innovative integration of technology and pedagogy can significantly bolster English language competence for TOEFL success and the overall English language proficiency. Keywords: expert system, forward Chaining, TOEFL
本文深入探讨了一种基于托福考试成绩的渐进式英语能力提升方法,该方法采用了前向连锁法的专家系统。作为英语水平的基准,托福考试需要一种战略性和个性化的方法来解决个人的薄弱环节。拟议的专家系统分析托福成绩,确定需要改进的具体领域,并据此调整学习路径。通过采用前向链条,该系统可以有效地引导学习者通过有针对性的练习、量身定制的学习计划和推荐资源的逻辑进展来强化已确定的语言技能缺陷。本文揭示了这一技术与教学法的创新整合如何能显著提高英语语言能力,从而帮助学生在托福考试中取得成功,并全面提高英语语言能力。关键词:专家系统、前向链、托福考试
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引用次数: 0
UI/UX Textbook Development Using ADDIE and E-learning in the Multimedia Study 在多媒体研究中使用 ADDIE 和电子学习进行用户界面/用户体验教科书开发
Pub Date : 2024-03-07 DOI: 10.18502/keg.v6i1.15370
Sanjaya Pinem, Herly Nurahmi
Education at colleges is frequently discovered to be independent, therefore learning managed may differ from materials taught. UI/UX is an important topic in multimedia. This study aims to create a learning system that is integrated with educational publications based on UI/UX courses. Agile is the strategy used to design the learning system, and ADDIE is the method used to develop educational materials. Every level of development and education is carried out simultaneously, beginning with planning and design, followed by implementation, and ending with evaluation. The research collaborator is PT. Impactbyte of Educational Technology. The findings from the assessment conducted on the production of textbooks indicate that students exhibit a favorable response toward the generated textbook. Additionally, the evaluation of eLearning, carried out through black-box testing, demonstrates that all the implemented functionalities perform effectively. Keywords: addie method, e-learning, textbook
高校的教育往往是独立的,因此所管理的学习可能与所教授的教材不同。用户界面/用户体验是多媒体领域的一个重要课题。本研究旨在根据用户界面/用户体验课程创建一个与教育出版物相结合的学习系统。敏捷是设计学习系统的策略,ADDIE 是开发教材的方法。开发和教育的各个层面同时进行,首先是规划和设计,然后是实施,最后是评估。研究合作方是 PT.Impactbyte 教育技术公司。对教科书制作的评估结果表明,学生对生成的教科书反应良好。此外,通过黑盒测试对电子学习进行的评估表明,所有已实施的功能都能有效运行。关键词:阿迪法、电子学习、教科书
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引用次数: 0
A Study on the Impact of Environmental Awareness on Sustainable Consumption Behavior in Maternity Wear 环保意识对孕妇装可持续消费行为的影响研究
Pub Date : 2024-03-07 DOI: 10.18502/keg.v6i1.15343
Yuting Sun, Zainu Din Bin Md Nor
With the relaxation of China’s birth policies and the dual independence gained by Chinese women in both mental and economic aspects, maternity wear, as an essential item for pregnant women, has an enormous design space and a growing consumer market, attracting increasing attention from all quarters [1]. However, due to the continuous changes in pregnant womens body shapes and the fact that most women need to continue working and socializing during the early and middle stages of pregnancy [2], maternity wear has a short wearing cycle and rapid turnover [3] leading to the current unsustainable consumption of maternity wear. This study aims to explore the impact of environmental awareness on the sustainable consumption behavior of maternity wear. Specifically, the study objective is to use Grounded Theory to analyze sustainability issues within maternity wear consumption and identify the factors and stages influencing sustainable consumption behavior through online searches for relevant reports and comments. We address 2 research questions. RQ1: How to improve the sustainability of maternity wear to reduce unsustainable consumption? RQ2: How does environmental awareness influence sustainable consumption behavior in maternity wear? This article, based on Grounded Theory, to ensure the timeliness of comments and reports, conducted sample data collection from 2019 to 2022. We conducted searches using keywords such as “sustainable maternity wear,” “ecofriendly maternity wear,” “sustainable fashion,” “maternity wear consumption,” and “postpartum clothing consumption.” We obtained a total of 1086 relevant articles and materials. After careful screening, we narrowed down our searches and organized 45 feasible textual materials for our study. Through online searches for relevant reports and comments regarding sustainable consumption of maternity wear, it identified consciousness-related influencing factors and three stages of sustainable maternity wear consumption behavior. Furthermore, it proposed reference recommendations for promoting sustainable consumption of maternity wear through management practices. Keywords: environmental awareness, maternity wear, sustainability, consumer behavior, grounded theory
随着我国生育政策的放宽,以及中国女性在精神和经济上的双重独立,孕妇装作为孕妇的必备用品,具有巨大的设计空间和日益增长的消费市场,越来越受到各方面的关注[1]。然而,由于孕妇体型的不断变化,以及大多数女性在孕早期和孕中期需要继续工作和社交[2],孕妇装穿着周期短、周转快[3],导致目前孕妇装消费的不可持续性。本研究旨在探讨环保意识对孕妇装可持续消费行为的影响。具体来说,研究目标是运用基础理论分析孕妇装消费中的可持续发展问题,并通过在线搜索相关报告和评论,找出影响可持续消费行为的因素和阶段。我们要解决 2 个研究问题。问题 1:如何提高孕妇装的可持续性,减少不可持续的消费?问题 2:环保意识如何影响孕妇装的可持续消费行为?本文基于基础理论(Grounded Theory),为保证评论和报告的时效性,从 2019 年到 2022 年进行了样本数据收集。我们使用 "可持续孕妇装"、"生态环保孕妇装"、"可持续时尚"、"孕妇装消费"、"产后服装消费 "等关键词进行检索。我们共获得了 1086 篇相关文章和资料。经过仔细筛选,我们缩小了搜索范围,整理出 45 份可行的文本资料供研究使用。通过在线搜索有关孕妇装可持续消费的相关报道和评论,确定了与意识相关的影响因素和孕妇装可持续消费行为的三个阶段。此外,还提出了通过管理实践促进孕妇装可持续消费的参考建议。关键词:环保意识、孕妇装、可持续发展、消费行为、基础理论
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引用次数: 0
Awareness of Gig Economy in Malaysia: Study At International University of Malaya-Wales 马来西亚对 "千兆经济 "的认识:马来亚威尔士国际大学的研究
Pub Date : 2024-03-07 DOI: 10.18502/keg.v6i1.15416
Amina Syarfina Abu Bakar, Noor Hafizah Hassan
Digitalization has transformed the world of business tremendously. The world of employment has shifted from a conventional method to a more flexible and seamless way. A gig economy has opened secondary careers that have created more opportunities that consequently have boosted the country’s economy. This secondary career is referred to as “freelancing”, or work on a job basis. In Malaysia, awareness and knowledge on this matter is still lacking and needs more studies and investigation. Past studies in Malaysia found that the gig economy faces challenges in terms of job security and safety, protection policies, proper platforms and dissemination, etc. Due to this, more studies are required to examine better development and implementation for gig communities. The findings will facilitate the development of better platforms and communities for a gig economy. Thus, this study aims to understand the awareness and knowledge of Malaysian private higher education staff and students on the gig economy. As such, this study specifically gathers data at the International University of Malaya-Wales. The findings will provide insights to lecturers, students, even alumni on how this kind of economy will benefit them and other stakeholders. These findings will also enrich the current data and information for policymakers, employers, and practitioners. Keywords: gig economy, private university, human resource, awareness, knowledge
数字化极大地改变了商业世界。世界就业已从传统方式转变为更加灵活和无缝的方式。打工经济开辟了第二职业,创造了更多机会,从而推动了国家经济的发展。这种第二职业被称为 "自由职业",即按劳分配工作。在马来西亚,对这一问题的认识和了解仍然不足,需要更多的研究和调查。马来西亚以往的研究发现,"打工经济 "在工作保障和安全、保护政策、适当的平台和传播等方面面临挑战。因此,需要进行更多的研究,以探讨如何更好地发展和实施 "打工社区"。研究结果将有助于为 "演出经济 "开发更好的平台和社区。因此,本研究旨在了解马来西亚私立高等教育机构的教职员工和学生对 "零工经济 "的认识和了解。因此,本研究专门在马来亚威尔士国际大学收集数据。研究结果将为讲师、学生甚至校友提供见解,让他们了解这种经济将如何惠及他们和其他利益相关者。这些发现还将丰富决策者、雇主和从业人员的现有数据和信息。关键词:打工经济、私立大学、人力资源、意识、知识
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引用次数: 0
Antioxidant Analysis of Sukun (Artocarpus Altilis (Parkinson) Fosberg) Leaves Using DPPH and IC50 Methods 用 DPPH 法分析苏昆(Artocarpus Altilis (Parkinson) Fosberg)叶片的抗氧化性叶片的抗氧化性分析
Pub Date : 2024-03-07 DOI: 10.18502/keg.v6i1.15355
Suryani Manurung, Khairun Nida, Muntikah
Sukun (Artocarpus altilis (Parkinson) Fosberg) are abundantly found in Indonesia. However, the usage of it was very limited. This research was conducted to analyze the antioxidant activity of Sukun leaves as one of the underused plants in Indonesia. Mature Sukun leaves were extracted using maceration method where 96% technical ethanol was used as the solvent. DPPH analysis was conducted using Burdan and Olezek method (2001). IC50 method was performed to analyze Vit C content of Sukun leaves. The analysis was performed on 2, 3, 4, 5, and 6 ppm concentrations. By using the DPPH method, it was found that the total antioxidant activity of the extract was 45.79; 48.11; 49.38; 50.95; and 51.70 respectively. IC 50 analysis shows that the vitamin C content of the extract was 54.82; 57.72; 60.64; 63.94; and 65.49 respectively for every concentration. It can be concluded that Sukun leaves showed strong antioxidant activity. Keywords: antioxidant analysis, Sukun (Artocarpus altilis), nutrition analysis, underused plant
印度尼西亚盛产苏昆(Artocarpus altilis (Parkinson) Fosberg)。然而,其使用量却非常有限。本研究旨在分析印尼未充分利用的植物之一苏昆叶的抗氧化活性。成熟的苏昆叶采用浸渍法提取,溶剂为 96% 的工业乙醇。采用 Burdan 和 Olezek 方法(2001 年)进行 DPPH 分析。采用 IC50 法分析苏昆叶的维生素 C 含量。分析的浓度分别为 2、3、4、5 和 6 ppm。通过 DPPH 法,发现提取物的总抗氧化活性分别为 45.79、48.11、49.38、50.95 和 51.70。IC 50 分析表明,每种浓度的提取物中维生素 C 的含量分别为 54.82、57.72、60.64、63.94 和 65.49。由此可以得出结论,苏昆叶具有很强的抗氧化活性。关键词:抗氧化分析、苏昆(海芋)、营养分析、未充分利用的植物
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引用次数: 0
An Exploration of Issues in China Art Portfolio Training Institutions 中国艺术作品集培训机构问题探讨
Pub Date : 2024-03-07 DOI: 10.18502/keg.v6i1.15444
Huajin Zhang, Noor Azly Mohammed Ali, Saiful Akram Che Cob, Yanying He, Gang Li, Yifei Li
In recent years, a large number of Chinese students have travelled overseas to study art, which has spawned a new industry, albeit only about eight years old, Art Portfolio Training Institutions, and this study focuses on these institutions. Through qualitative analyses, the researcher interviewed educators and students in these art institutions to collect data from different perspectives. The main purpose of this study was to reveal the problems that exist in these portfolio institutions. There are still several issues within China’s portfolio guidance institutions that impact the success rate of students’ applications to foreign universities, varying teacher standards, false advertising, and indiscriminate fees. The study gives suggestions for portfolio institutions in choosing teachers and other aspects. Keywords: portfolio industry, international art education, development strategies
近年来,大量中国学生前往海外学习艺术,这催生了一个新的行业,尽管只有大约八年的历史,即艺术组合培训机构,本研究主要关注这些机构。通过定性分析,研究者采访了这些艺术机构的教育者和学生,从不同角度收集数据。本研究的主要目的是揭示这些作品集机构存在的问题。中国的组合指导机构仍存在一些问题,如教师水平参差不齐、虚假宣传、乱收费等,影响了学生申请国外大学的成功率。本研究对作品集机构在选择师资等方面提出了建议。关键词:作品集产业;国际艺术教育;发展策略
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引用次数: 0
Designing Aesthetic and Visual Perception Textbook in Photography: Integrating Theory and Practice for College Students 设计摄影中的审美和视觉感知教科书:大学生理论与实践相结合
Pub Date : 2024-03-07 DOI: 10.18502/keg.v6i1.15425
Yuda Syah Putra, Irpan Riana, Dyama Khazim Setiyadi
The textbook for the course of Aesthetics and Visual Perception in Photography was developed to address the lack of available reference books for the subject at the Politeknik Negeri Media Kreatif. The objective of this textbook is to provide comprehensive and structured teaching materials on aesthetics and visual perception in photography, enabling students to understand and apply these principles in their photographic works. The research methodology involved literature study, data collection, textbook design, testing, and evaluation. The creation of this textbook benefits students by facilitating their learning and comprehension of the subject matter, while also offering a comprehensive and structured reference on aesthetics and visual perception in photography. The research was conducted over a period of approximately nine weeks. It is expected that this textbook will serve as a solution to the lack of reference materials and assist students in understanding and applying the principles of aesthetics and visual perception in photography. The results of this research indicate that aesthetics and visual perception play a vital role in creating captivating and meaningful photographs for the viewers. The integration of theory and practice within the textbook aids students in developing their photography skills more effectively. Keywords: textbook, photography, aesthetics, visual perception
摄影中的美学与视觉感知》课程教材的编写是为了解决媒体创意学院缺乏该课程参考书的问题。这本教科书的目的是提供有关摄影美学和视觉感知的全面、结构化教材,使学生能够理解并在摄影作品中应用这些原则。研究方法包括文献研究、数据收集、教科书设计、测试和评估。这本教科书的编写有利于学生学习和理解主题内容,同时也为学生提供了关于摄影美学和视觉感知的全面而有条理的参考资料。研究历时约九周。希望这本教科书能解决参考资料缺乏的问题,帮助学生理解和应用摄影美学和视觉感知原理。研究结果表明,美学和视觉感知在为观众创作迷人而有意义的摄影作品中起着至关重要的作用。教科书将理论与实践相结合,有助于学生更有效地提高摄影技能。关键词:教科书、摄影、美学、视觉感知
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引用次数: 0
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KnE Engineering
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