Spektrum Industri https://journal3.uad.ac.id/index.php/spektrum <table class="data" style="height: 378px;" width="628" bgcolor="#f0f0f0"> <tbody> <tr valign="top"> <td style="text-align: justify;">Journal Name</td> <td style="text-align: justify;"><strong>SPEKTRUM INDUSTRI</strong></td> </tr> <tr valign="top"> <td style="text-align: justify;">Journal Initials</td> <td style="text-align: justify;"><strong>SI</strong></td> </tr> <tr valign="top"> <td style="text-align: justify;">Journal Abbreviation</td> <td style="text-align: justify;"><strong>Spek Ind</strong></td> </tr> <tr valign="top"> <td style="text-align: justify;">Frequency</td> <td style="text-align: justify;"><strong>2 issues per year (April and October)</strong></td> </tr> <tr valign="top"> <td style="text-align: justify;">DOI</td> <td style="text-align: justify;"><strong>prefix <a href="https://search.crossref.org/?q=2442-2630" target="_blank" rel="noopener">10.12928</a></strong><strong><br /></strong></td> </tr> <tr valign="top"> <td style="text-align: justify;">Print ISSN</td> <td style="text-align: justify;"><strong><a href="http://issn.lipi.go.id/issn.cgi?daftar&amp;1180428044&amp;1&amp;&amp;" target="_blank" rel="noopener">1693-6590</a></strong></td> </tr> <tr valign="top"> <td style="text-align: justify;">Online ISSN</td> <td style="text-align: justify;"><strong><a href="http://issn.lipi.go.id/issn.cgi?daftar&amp;1419302723&amp;1&amp;&amp;" target="_blank" rel="noopener">2442-2630</a></strong></td> </tr> <tr valign="top"> <td style="text-align: justify;">Editor-in-chief</td> <td style="text-align: justify;"><strong><a href="https://www.scopus.com/authid/detail.uri?authorId=57210820117&amp;eid=2-s2.0-85071534480" target="_blank" rel="noopener">Agung Kristanto</a></strong></td> </tr> <tr valign="top"> <td style="text-align: justify;">Managing Editor</td> <td style="text-align: justify;"><strong><a href="https://www.scopus.com/authid/detail.uri?authorId=55443114200&amp;eid=2-s2.0-84868219923" target="_blank" rel="noopener">Fatma Hermining Astuti</a></strong></td> </tr> <tr valign="top"> <td style="text-align: justify;">Publisher</td> <td style="text-align: justify;"><strong>Universitas Ahmad Dahlan In collaboration with <a href="https://app.powerbi.com/view?r=eyJrIjoiYzhlYjMyZTMtMzVmMS00YzNmLTkyY2YtZWMyNzBmZjY5YjUyIiwidCI6IjM0NjI3ODc0LWVkM2EtNDk3Yy04ZmI5LTE2Y2U3ZTk3NjRmMSIsImMiOjEwfQ%3D%3D&amp;pageName=ReportSection">BKSTI</a> (Badan Kerjasama Penyelenggara Pendidikan Tinggi Teknik Industri)</strong></td> </tr> </tbody> </table> <table style="height: 526px;" width="635"> <tbody> <tr> <td> <p style="text-align: justify;">Spektrum Industri <a href="http://u.lipi.go.id/1180428044">ISSN 1693-6590(print)</a>; <a href="http://u.lipi.go.id/1419302723">ISSN 2442-2630(online)</a> is a Journal that publish scientific articles in the science scope related to engineering and/or industrial management both research and theoretical. Literature review will be considered if it is written by an expert. Spektrum Industri is published twice a year, every April and October.</p> <p style="text-align: justify;">This journal has been indexed by DOAJ, Crossref, Google Scholar, Indonesian Publication Index (IPI) (formerly Portal Garuda Indonesian Publication Index), Indonesian Scientific Journal Database (ISJD), and Science and Technology Index (SINTA). Since September 2019, the journal has been ACCREDITED with SINTA 3 by the Ministry of Research, Technology and Higher Education (RistekDikti) of The Republic of Indonesia as an achievement for the peer-reviewed journal which has excellent quality in management and publication. The recognition published in Director Decree No 28/E/KPT/2019 September 26, 2019 effective until 2023.</p> <p style="text-align: justify;">All submitted manuscripts will be initially reviewed by editors and are then evaluated by minimum <strong>two reviewers</strong> through the <strong>double-blind review</strong> process. This is to ensure the quality of the published manuscripts in the journal.</p> <p style="text-align: justify;"><strong>Before Submission<br /></strong>Author has to <strong>make sure</strong> that the manuscript has been prepared using the <a href="https://drive.google.com/file/d/1l_xNx95qdb5OWmUBnCaFMCrfC7WquLd8/view?usp=sharing"><strong>Spektrum Industri's template</strong></a> following the<a href="http://journal.uad.ac.id/index.php/Spektrum/about/submissions#authorGuidelines"> author guidelines</a>. The manuscript should also have been carefully proofread. Any manuscript which <strong>does not</strong> meet the template requirement will be rejected</p> </td> </tr> </tbody> </table> en-US agung.kristanto@ie.uad.ac.id (Dr. Agung Kristanto) wandhansari.sekar@ie.uad.ac.id (Wandhansari Sekar Jatiningrum) Sun, 29 Oct 2023 00:00:00 +0000 OJS 3.2.1.4 http://blogs.law.harvard.edu/tech/rss 60 Emotion Detection for Health and Well-being in Short Messaging Systems https://journal3.uad.ac.id/index.php/spektrum/article/view/139 <p>The exposure to unpleasant emotions or content in messages can lead to health complications, including high blood pressure and several heart-related disorders. Hence, the identification of unpleasant emotions in written content can serve as a beneficial instrument in addressing certain health-related issues. Emotions can be communicated through diverse modalities, including written text, spoken language, and facial gestures. The objective of this work is to create a Text-based emotion detection system that possesses the capability to accurately identify emotions within text messages. The use of message filtering mechanisms that detect and block content containing negative emotions can serve as a preventive measure to shield users from accessing messages that have the potential to adversely impact their well-being. Conversely, messages that convey positive or neutral emotions remain accessible for comprehension. In order to accomplish this objective, a combination of three machine learning algorithms, namely Naive Bayes, Support Vector Machine, and Logistic Regression, were employed, adhering to the CRISP-DM approach. The Logistic Regression technique achieved the greatest accuracy rate of 98.4% and was employed in the construction of the detection system. The Graphical User Interface (GUI) of the system was developed utilizing HTML and CSS, with the integration of diverse components to establish a comprehensive and operational interface for the user.</p> Emeka Ogbuju Copyright (c) 2023 Emeka Ogbuju https://creativecommons.org/licenses/by-sa/4.0 https://journal3.uad.ac.id/index.php/spektrum/article/view/139 Sun, 29 Oct 2023 00:00:00 +0000 Prevalence of Work Musculoskeletal Disorder in Patients Handling Tasks Among Nursing Staff in Critical Care-Unit https://journal3.uad.ac.id/index.php/spektrum/article/view/154 <p>Awkward postures imposed by nursing duties are a main source of work-related musculoskeletal disorders among nursing staff. The purpose of this article is to describe the prevalence of work-related musculoskeletal disorders among critical care nurses, in two patient handling tasks, transferring and repositioning of patients, and assess their training level and acquaintance of ergonomics rules and principles in patients’ handling tasks. Results of the study revealed a large number of nurses in intensive care unit exhibit musculoskeletal disorders symptoms. Nurses knowledge of safe patients handling technics are superficial and lacking basic human factors /ergonomics principles. The study recommended the immediate hiring of an adequate number of physically able nursing staff and providing the necessary work equipment to assist nurses perform patient handling tasks. In the near future, a human factors/ergonomics intervention program should be launched, incorporating a "Safe Patient Handling Training Program” for the critical care-unit staff</p> Bouhafs Mebarki, Brahim Zaoui, Mohamed Mokdad, Imed Eddine Mebarki Copyright (c) 2023 Bouhafs Mebarki, Brahim, Mohamed, Imed https://creativecommons.org/licenses/by-sa/4.0 https://journal3.uad.ac.id/index.php/spektrum/article/view/154 Sun, 29 Oct 2023 00:00:00 +0000 Analyzing Thermal Processes in Laser Welding of Multi- Component Heat-Resistant Alloy Thin-Walled Butt Joints: A Comprehensive Modeling Approach https://journal3.uad.ac.id/index.php/spektrum/article/view/151 <p>Niobium-based alloys are vital in high-temperature environments due to their unique chemical composition, phase structure, high density, and oxidation resistance. These alloys find extensive applications in industries such as medicine, engine manufacturing, and space technology. This study delves into the complexities of modeling laser welding processes, necessitated by the multitude of dynamic parameters specific to each surface configuration. Finite element modeling was conducted using COMSOL Multiphysics to analyze the heat transfer in butt joints between Nb-15W-5Mo-1Zr alloy plates under 400 W laser radiation power. The research employed finite element modeling to analyze heat transfer in Nb-15W-5Mo-1Zr alloy plates, considering non-uniform movement at the start and end of the welding process, Gaussian heat flux distribution along the laser spot radius, and temperature-dependent reflection coefficient. The models accounted for non-uniform movement, Gaussian heat flux distribution, and temperature-dependent reflection coefficient. The study demonstrated that thin plates of Nb-15W-5Mo-1Zr alloy can be effectively welded using specific laser processing modes, leveraging their high initial cooling rate of 1.2-1.3 s. Successful welding of Nb-15W-5Mo-1Zr alloy plates requires careful consideration of laser processing parameters. While the alloy's thermodynamic properties allow for effective welding, ensuring weld quality mandates additional production processes aimed at preventing potential part failure.</p> Mykola Sokolovskyi, Artemii Bernatskyi, Oleksandr Siora, Valentyna Bondarieva, Yurii Yurchenko, Nataliia Shamsutdinova, Oleksandr Danyleiko Copyright (c) 2023 Mykola Sokolovskyi, Artemii Bernatskyi, Oleksandr Siora, Valentyna Bondarieva, Yurii Yurchenko, Nataliia Shamsutdinova, Oleksandr Danyleiko https://creativecommons.org/licenses/by-sa/4.0 https://journal3.uad.ac.id/index.php/spektrum/article/view/151 Sun, 29 Oct 2023 00:00:00 +0000 Designing the Decision Support System to Determine the Major and Higher Education Institution based on Preferences of Prospective Students https://journal3.uad.ac.id/index.php/spektrum/article/view/157 <p>There are several factors considered by students toward determining the major and higher education institution. As a result, determining the best choices for further studies becomes difficult. Moreover, there are many choices of higher education. This study contributes to developing a decision support system (DSS) to help students determine the major and higher education institution considered several criteria based on Analytical Hierarchy Process (AHP). Several criteria and subcriteria were chosen by distributing 186 questionnaires to final grade students. Based on the result, criteria and subcriteria used were tuition fee, scholarship, infrastructure (library, classroom, laboratory, transportation, teaching staff), curriculum, quality (accreditation, study period, achievement), reputation, and international collaboration. According to these criteria and sub-criteria, a DSS was built to help students determine their major and higher education institution according to their preferences. The algorithm used was AHP, which was then built with Borland Delphi. Context Diagram, Data Flow Diagram (DFD), and Entity Relationship Diagram (ERD) were made as a guide to design the DSS. This DSS was tested using black box test, beta test and compatibility test with manual calculations. The black box test showed that the DSS has performed the functions according to the design. Later, the beta test resulted in a correctness score of 20.4, reliability of 16.8, usability of 25.5, which means they were in the very good category and integrity of 3.4, which means good. Meanwhile, based on manual calculations, the DSS provides output in accordance with the results of manual calculations. Finaly, he DSS was proven to be used as a decision-making tool in determining the major and higher education institution for students</p> Siti Supri Astutik, Wandhansari Sekar Jatiningrum Copyright (c) 2023 Siti Supri Astutik, Wandhansari Sekar Jatiningrum https://creativecommons.org/licenses/by-sa/4.0 https://journal3.uad.ac.id/index.php/spektrum/article/view/157 Wed, 29 Nov 2023 00:00:00 +0000 Analysis of Productivity Measurement in CPO Production Using OMAX Method https://journal3.uad.ac.id/index.php/spektrum/article/view/145 <p>The primary focus of this research revolves around the measurement of productivity and the factors that impact Crude Palm Oil (CPO) production which currently faces challenges in assessing whether existing productivity falls into the 'satisfactory' category. The contribution of this study is conducting a comprehensive productivity assessment, focusing on metrics and identifying the causes of productivity decline, especially potential points of failure. The measurement indicators use the Objective Matrix (OMAX) method which includes five ratios, including raw material utilization, energy consumption, labor efficiency, optimization of production targets, and production capacity utilization. The Analytical Hierarchy Process (AHP) is used to assign relative weight to factors that contribute to overall productivity. In addition, Failure Modes and Effects Analysis (FMEA) functions as a tool to determine the causes of decreased productivity by considering the potential for failure to occur. The research results show that productivity reached its highest point in March at 219.93% and the lowest in July at -67.33%. Based on the score assessment, this decline was mainly caused by the lack of optimal achievement of production targets, symbolized by a ratio of 4 to a score of 45. Potential causes for this ratio include non-compliance in selecting FFB that meets standards, and production standards that are too ambitious. targets, and mental and physical fatigue and stress. To improve overall performance, proposed improvements include the application of Internet of Things (IoT) technology, such as the use of sensors and automation systems in production processes, as well as investment in agricultural technology as a monitoring system. This increase is aimed at achieving higher production targets and overall efficiency.</p> Ade Dwi sakti, Misra Hartati , Muhammad Nur , Harpito Harpito Copyright (c) 2023 Ade Dwi sakti, Misra Hartati , Muhammad Nur , Harpito Harpito https://creativecommons.org/licenses/by-sa/4.0 https://journal3.uad.ac.id/index.php/spektrum/article/view/145 Sun, 29 Oct 2023 00:00:00 +0000 Patient Experience Management as a Tool for Internationalization in Foundation Cardiovascular of Colombia https://journal3.uad.ac.id/index.php/spektrum/article/view/163 <p>Medical tourism, also known as healthcare tourism or medical travel, refers to traveling to a foreign country to receive medical treatment. Medical tourism has recently become increasingly popular, with millions traveling abroad for healthcare services yearly. However, medical tourism is not without its challenges. Patients must carefully research and select healthcare providers and facilities, considering factors such as accreditation, quality of care, and patient safety. Patients may also face cultural and language barriers when seeking treatment in a foreign country. The present work aims to establish the bases and knowledge to determine the importance of patient satisfaction as a factor of competitiveness. This work presents a study case centralized in the institutions providing health services (IPS in Spanish): Cardiovascular Foundation of Colombia (FCV) and a detailed analysis of the internationalization processes established by the Cardiovascular Foundation. For this, each of the processes was categorized and detailed in such a way that it would allow identifying which are the determining factors in the patient's experience and how to improve them. Each proposed strategy consists of a theoretical framework of the topic to be developed, objectives, approach, methodology, and development. Finally, the results obtained are the product of the analysis of surveys applied to the objective users, theoretical verifications, interviews, and work groups with directors of the Cardiovascular Foundation of Colombia.</p> Juan León-Becerra, Jorge Martinez Sanchez, Andres Morales Adarme Copyright (c) 2023 Juan León-Becerra, Jorge Martinez-Sanchez, Andrés Morales-Adarme https://creativecommons.org/licenses/by-sa/4.0 https://journal3.uad.ac.id/index.php/spektrum/article/view/163 Sun, 29 Oct 2023 00:00:00 +0000 Determining The Optimal Milk Distribution Route Using The Ant Colony Optimization Method on Milk Industry https://journal3.uad.ac.id/index.php/spektrum/article/view/92 <p>A good distribution system will ensure the availability of products or goods needed by the community. The objective of this research is to identify the most efficient route for distributing UHT milk on Milk Industry, with the goal of minimizing the overall distance traveled during distribution. The contribution of this study is to determine the optimal distribution route for UHT milk on Milk Industry. Data analysis or data calculation is done using Ant Colony optimization. The independent variables used are the initial distribution route data of the company, agent location data, product demand data, and distance data between agents. The results of this study found that the company's route resulted in a total route distance of 251.95 km while for the optimal total distance Ant Colony Optimization method is the total route distance of 230.2 km. Thus, the optimal route of the distribution of Ant Colony Optimization method is better than the initial route of the company with a total route distance savings of 21.75 km with a percentage of savings of 8.63%.</p> Mohamad Lukman Hakim Gusti, Enny Aryanny Copyright (c) 2023 Mohamad Lukman Hakim Gusti, Enny Aryanny https://creativecommons.org/licenses/by-sa/4.0 https://journal3.uad.ac.id/index.php/spektrum/article/view/92 Sun, 29 Oct 2023 00:00:00 +0000