This article discusses the design of a web-based portfolio and catalog integration system as a medium for learning and promoting the work of Polymedia Broadcasting Study Program students. The systems entitled ’Nakula’ and ’Sadewa’ are designed in an integrated manner to meet the needs of the distribution and promotion process of student work. There are three main needs in managing audio-visual works in the broadcasting study program: (1) The need for a work archive system. (2) Open access to works for students as a learning medium. (3) Showcase student work so that it can be accessed on a limited basis by stakeholders or sponsors. These findings can complement the findings of previous studies which have been able to use the E-portfolio system as a promotional medium and the E-Catalog as a student learning medium. These two systems are then combined into an integrated system that can answer the three main needs for the distribution and archiving of works in the broadcasting study program. The method used in this research is the development research method (DRM). This method tries to map the problem at a locus and find a solution based on the problem found. Apart from that DRM also prioritizes the involvement of each actor in these activities so that it can maximize the role of each actor. The findings in this article are a platform called Nakula-Sadewa, which has features including a showcase of student assignments that can be accessed in full version for polymedia students so that it can be maximized as a learning medium, limited access by sponsors or external parties, work archive facilities, and writing practice for students. Keywords: Nakula-Sadewa, promotion, learing, media, platform
{"title":"E-Portfolio and E-Catalog Integration System as Learning Media and Promotion of Broadcasting Study Program","authors":"Syahyuni Srimayasandy, Freddy Yakob, Adryans Adryans","doi":"10.18502/keg.v6i1.15377","DOIUrl":"https://doi.org/10.18502/keg.v6i1.15377","url":null,"abstract":"This article discusses the design of a web-based portfolio and catalog integration system as a medium for learning and promoting the work of Polymedia Broadcasting Study Program students. The systems entitled ’Nakula’ and ’Sadewa’ are designed in an integrated manner to meet the needs of the distribution and promotion process of student work. There are three main needs in managing audio-visual works in the broadcasting study program: (1) The need for a work archive system. (2) Open access to works for students as a learning medium. (3) Showcase student work so that it can be accessed on a limited basis by stakeholders or sponsors. These findings can complement the findings of previous studies which have been able to use the E-portfolio system as a promotional medium and the E-Catalog as a student learning medium. These two systems are then combined into an integrated system that can answer the three main needs for the distribution and archiving of works in the broadcasting study program. The method used in this research is the development research method (DRM). This method tries to map the problem at a locus and find a solution based on the problem found. Apart from that DRM also prioritizes the involvement of each actor in these activities so that it can maximize the role of each actor. The findings in this article are a platform called Nakula-Sadewa, which has features including a showcase of student assignments that can be accessed in full version for polymedia students so that it can be maximized as a learning medium, limited access by sponsors or external parties, work archive facilities, and writing practice for students. \u0000Keywords: Nakula-Sadewa, promotion, learing, media, platform","PeriodicalId":106635,"journal":{"name":"KnE Engineering","volume":"12 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140258941","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}
Besse Irna Tawaddud, Muliaty, Abdul Gunaldi Muin, Siti Nur Alifa
The incidence of sexual crimes against children and the prevalence of health-risk behaviors resulting from a lack of reproductive health education media have been identified from an early age as problems that must be followed up immediately. Instilling conception from an early age in children regarding reproductive health education, which is still taboo in most Indonesian societies, is an indication of research achievements that are relevant to be applied in social sciences and humanity. This research aims to test the feasibility of the pop-up book with the title “Yours” (Reproductive Health Education Book) for the age group of children over 6 years. The research method applied in this study is the research and development (R&D) method with the 4D flow (define, design, development, and dissemination). The pop-up book product with the title Pop Up Yours is a product created by the author and has never been tested for feasibility before. The results showed that the Pop Up Book “Yours” can be a medium for reproductive health education in children with the results of testing on 30 children(n=30) aged 9 years, an increase in knowledge of 93.3% was observed. Based on the results of the feasibility test, it can be seen that the “Yours” Pop Up Book is suitable for use by groups of children over 6 years old with the important concern of using this pop-up book under parental guidance. Keywords: pop-up book, child, reproductive health
{"title":"Development of Pop-up Book Illustrations as Educational Media for Child Reproductive Health","authors":"Besse Irna Tawaddud, Muliaty, Abdul Gunaldi Muin, Siti Nur Alifa","doi":"10.18502/keg.v6i1.15371","DOIUrl":"https://doi.org/10.18502/keg.v6i1.15371","url":null,"abstract":"The incidence of sexual crimes against children and the prevalence of health-risk behaviors resulting from a lack of reproductive health education media have been identified from an early age as problems that must be followed up immediately. Instilling conception from an early age in children regarding reproductive health education, which is still taboo in most Indonesian societies, is an indication of research achievements that are relevant to be applied in social sciences and humanity. This research aims to test the feasibility of the pop-up book with the title “Yours” (Reproductive Health Education Book) for the age group of children over 6 years. The research method applied in this study is the research and development (R&D) method with the 4D flow (define, design, development, and dissemination). The pop-up book product with the title Pop Up Yours is a product created by the author and has never been tested for feasibility before. The results showed that the Pop Up Book “Yours” can be a medium for reproductive health education in children with the results of testing on 30 children(n=30) aged 9 years, an increase in knowledge of 93.3% was observed. Based on the results of the feasibility test, it can be seen that the “Yours” Pop Up Book is suitable for use by groups of children over 6 years old with the important concern of using this pop-up book under parental guidance. \u0000Keywords: pop-up book, child, reproductive health","PeriodicalId":106635,"journal":{"name":"KnE Engineering","volume":"42 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140259263","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}
In this work, we have implemented an eco-friendly method for synthesis of zinc oxide nanoparticles (ZnO NPs) using potato extracts (Solanum tuberosum) as the natural bio-reductants and stabilizing agent. Meanwhile the zinc nitrate octahydrate (Zn[NO3] 2.6H2O) and ammonium hydroxide (NH4OH) were used as the precursor of ZnO NPs. The sediment of Zn(OH)2 was separated from the solvent using centrifuge, and further calcinated at the temperature of 500ºC so that formed ZnO nanoparticles. SEM micrograph of ZnO NPs shows the hexagonal shapes with particles size around 50–100 nm. The XRD spectra confirms that ZnO NPs exhibited well crystalline nature, however, there were impurity peaks caused by the potato extracts addition. From the FTIR analysis, we obtained the existence of another chemical compounds, denoting the presence of stabilizing and reducing agent from potato extract. Keywords: ZnO nanoparticles, green synthesis, antibacterial and active packaging
{"title":"Green Synthesis of ZnO Nanoparticles Using Potato Extracts (Solanum tuberosum) As an Antibacterial Agent in the Active Packaging For Food Products","authors":"Supardianningsih, Susiani Susiani, M. Nugraha","doi":"10.18502/keg.v6i1.15410","DOIUrl":"https://doi.org/10.18502/keg.v6i1.15410","url":null,"abstract":"In this work, we have implemented an eco-friendly method for synthesis of zinc oxide nanoparticles (ZnO NPs) using potato extracts (Solanum tuberosum) as the natural bio-reductants and stabilizing agent. Meanwhile the zinc nitrate octahydrate (Zn[NO3] 2.6H2O) and ammonium hydroxide (NH4OH) were used as the precursor of ZnO NPs. The sediment of Zn(OH)2 was separated from the solvent using centrifuge, and further calcinated at the temperature of 500ºC so that formed ZnO nanoparticles. SEM micrograph of ZnO NPs shows the hexagonal shapes with particles size around 50–100 nm. The XRD spectra confirms that ZnO NPs exhibited well crystalline nature, however, there were impurity peaks caused by the potato extracts addition. From the FTIR analysis, we obtained the existence of another chemical compounds, denoting the presence of stabilizing and reducing agent from potato extract. \u0000Keywords: ZnO nanoparticles, green synthesis, antibacterial and active packaging","PeriodicalId":106635,"journal":{"name":"KnE Engineering","volume":"25 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140259773","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}
This paper sets out the additional value of peci, a hat usually worn by Muslim males in Jakarta during the celebration of Eid al-Fitr, as a symbol of Indonesian cultural identity and modesty. It is common practice for individuals to store money (angpau) in the peci for easy access, however, there is a problem with the existing traditional peci design. Money will scatter when the peci falls off, thus, compromising user comfort and safety. The peci design was explored by introducing an additional wallet feature with a zipper that allows customization and versatility. Additionally, the use of Betawi traditional ornaments further enhances the peci value, making it suitable as an iconic souvenir from Jakarta. This research applied the design thinking approach of the Hasso Platner Institute (HPI) Stanford model with five steps comprised of empathize, define, ideate, prototype, and test as a problem-solving tool to provide a better understanding of the needs and perspectives of peci users. The results show that pecipaw innovation could cater to the added value of traditional peci products as an iconic souvenir of Jakarta. Further research will help to expand more explorative design and conduct user evaluation to establish objective measurements of the final prototype. Keywords: peci, gigi balang, betawi, ornament, wallet
{"title":"Pecipaw (Peci Angpaw): Adding a Wallet in Traditional Peci with Enhancement of Betawi Gigi Balang Ornament","authors":"Pratiwi Kusumowardhani, Pingki Indrianti, Hesti Nurhayati","doi":"10.18502/keg.v6i1.15421","DOIUrl":"https://doi.org/10.18502/keg.v6i1.15421","url":null,"abstract":"This paper sets out the additional value of peci, a hat usually worn by Muslim males in Jakarta during the celebration of Eid al-Fitr, as a symbol of Indonesian cultural identity and modesty. It is common practice for individuals to store money (angpau) in the peci for easy access, however, there is a problem with the existing traditional peci design. Money will scatter when the peci falls off, thus, compromising user comfort and safety. The peci design was explored by introducing an additional wallet feature with a zipper that allows customization and versatility. Additionally, the use of Betawi traditional ornaments further enhances the peci value, making it suitable as an iconic souvenir from Jakarta. This research applied the design thinking approach of the Hasso Platner Institute (HPI) Stanford model with five steps comprised of empathize, define, ideate, prototype, and test as a problem-solving tool to provide a better understanding of the needs and perspectives of peci users. The results show that pecipaw innovation could cater to the added value of traditional peci products as an iconic souvenir of Jakarta. Further research will help to expand more explorative design and conduct user evaluation to establish objective measurements of the final prototype. \u0000Keywords: peci, gigi balang, betawi, ornament, wallet","PeriodicalId":106635,"journal":{"name":"KnE Engineering","volume":"23 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140259841","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}
For nearly 14 years of existence, Politeknik Negeri Media Kreatif (Polimedia) through entrepreneurship courses has been producing the output of various businesses carried out by students. However, there is no business platform that accommodates all student businesses so that they become businesses that many do not continue. Currently, the digital world is a part that cannot be separated from various lines of life. Since the pandemic, most activities were carried out online. It takes significant strides to stay in the middle of big competition. Customer Relationship Management (CRM) is a term used in business in the form of steps or procedures related to customers in a website. Departing from this, in this research proposal the proposer submits the development of an integrated digital business platform as a customer embodiment relationship management for Polimedia’s Student Entrepreneurship Platforms. It is used to accommodate all student-run businesses as well as an effort to market it widely. Keywords: business platform, customer relationship management, entrepreneurship, students
Politeknik Negeri Media Kreatif（Polimedia）成立近 14 年来，通过创业课程，学生们开展了各种业务。然而，没有一个商业平台可以容纳所有的学生企业，使它们成为许多人无法继续的企业。目前，数字世界是各行各业不可分割的一部分。自大流行病以来，大多数活动都在网上进行。要想在激烈的竞争中立于不败之地，就必须大步前进。客户关系管理（CRM）是一个商业术语，是网站中与客户相关的步骤或程序。有鉴于此，在本研究提案中，提案人提出开发一个综合数字业务平台，作为波利多媒体学生创业平台的客户体现关系管理。该平台用于容纳所有学生经营的企业，并努力将其广泛推向市场。关键词：商业平台、客户关系管理、创业、学生
{"title":"Development of an Integrated Digital Business Platform as a Realization of Customer Relationship Management for Polimedia Student Entrepreneurship","authors":"Tipri Rose Kartika, Tri Fajar Yurmama Supiyanti","doi":"10.18502/keg.v6i1.15367","DOIUrl":"https://doi.org/10.18502/keg.v6i1.15367","url":null,"abstract":"For nearly 14 years of existence, Politeknik Negeri Media Kreatif (Polimedia) through entrepreneurship courses has been producing the output of various businesses carried out by students. However, there is no business platform that accommodates all student businesses so that they become businesses that many do not continue. Currently, the digital world is a part that cannot be separated from various lines of life. Since the pandemic, most activities were carried out online. It takes significant strides to stay in the middle of big competition. Customer Relationship Management (CRM) is a term used in business in the form of steps or procedures related to customers in a website. Departing from this, in this research proposal the proposer submits the development of an integrated digital business platform as a customer embodiment relationship management for Polimedia’s Student Entrepreneurship Platforms. It is used to accommodate all student-run businesses as well as an effort to market it widely. \u0000Keywords: business platform, customer relationship management, entrepreneurship, students","PeriodicalId":106635,"journal":{"name":"KnE Engineering","volume":"7 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140259975","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}
This application is designed to assist Quran memorizers or prayer leaders (Imams) in recalling their memorization. The aim of this research is to develop an Android-based Al-Qur’an assistant application with real-time voice command features. The waterfall method is used as a reference during the application development stages, including system analysis, system design using UML, implementation, and testing with blackbox testing technique. This Al-Qur’an assistant application utilizes Google Speech API to recognize user’s voice and match it with the requested surahs and verses. The result of this research is an Al-Qur’an assistant application that helps users easily search for Quranic verses through real-time voice commands. The benefits of this application include saving time and facilitating users in interacting with the Al-Qur’an. Keywords: voice command, Google speech API, realtime, waterfall, Al Qur’an
{"title":"Development of Assistant Quran Application With Real-time Voice Commands","authors":"Suhendra, Siti Aisyah, Dewantoro Lase","doi":"10.18502/keg.v6i1.15412","DOIUrl":"https://doi.org/10.18502/keg.v6i1.15412","url":null,"abstract":"This application is designed to assist Quran memorizers or prayer leaders (Imams) in recalling their memorization. The aim of this research is to develop an Android-based Al-Qur’an assistant application with real-time voice command features. The waterfall method is used as a reference during the application development stages, including system analysis, system design using UML, implementation, and testing with blackbox testing technique. This Al-Qur’an assistant application utilizes Google Speech API to recognize user’s voice and match it with the requested surahs and verses. The result of this research is an Al-Qur’an assistant application that helps users easily search for Quranic verses through real-time voice commands. The benefits of this application include saving time and facilitating users in interacting with the Al-Qur’an. \u0000Keywords: voice command, Google speech API, realtime, waterfall, Al Qur’an","PeriodicalId":106635,"journal":{"name":"KnE Engineering","volume":"20 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140261015","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}
Fitriani Halik, S. Suardi, Lukytta Gusti Acfira, Najmawati Sulaiman
As the study of mathematics is quite vast, the lecturer requires open interactive materials so that students can better understand, especially in the process of solving problems in learning mathematics. This can be overcome by improving learning materials supporting students problem-solving abilities, one of which is using an e-module. This research aims to determine the validity, practicality, and effectiveness of e-modules for applied mathematics courses for students. This research used a 4D development model. The development procedure in this research consists of 4 stages namely define, design, develop, and disseminate. This research uses several collection instruments, namely validation sheets, lecturer response questionnaires, student response questionnaires, lecturers’ ability observation sheets in managing learning, student activity observation sheets, and student achievement test. The research results show that the validity of the e-module shows a score of 4.8 which is in the very valid category. The lecturer response questionnaire showed a score of 95% and the student response questionnaire showed a score of 94.5% so it was in the very positive category. The lecturer’s ability sheet in managing learning is at a score of 4.85, the student activity sheet shows a score of 80.2% and the learning achievement test is 93%. So, it can be concluded that the e-module is valid, practical, and effective. Keywords: valid, practical, effective
{"title":"Validity, Practicality and Effectiveness of E-module Teaching Materials in the Learning Subject Applied Mathematics in Students","authors":"Fitriani Halik, S. Suardi, Lukytta Gusti Acfira, Najmawati Sulaiman","doi":"10.18502/keg.v6i1.15364","DOIUrl":"https://doi.org/10.18502/keg.v6i1.15364","url":null,"abstract":"As the study of mathematics is quite vast, the lecturer requires open interactive materials so that students can better understand, especially in the process of solving problems in learning mathematics. This can be overcome by improving learning materials supporting students problem-solving abilities, one of which is using an e-module. This research aims to determine the validity, practicality, and effectiveness of e-modules for applied mathematics courses for students. This research used a 4D development model. The development procedure in this research consists of 4 stages namely define, design, develop, and disseminate. This research uses several collection instruments, namely validation sheets, lecturer response questionnaires, student response questionnaires, lecturers’ ability observation sheets in managing learning, student activity observation sheets, and student achievement test. The research results show that the validity of the e-module shows a score of 4.8 which is in the very valid category. The lecturer response questionnaire showed a score of 95% and the student response questionnaire showed a score of 94.5% so it was in the very positive category. The lecturer’s ability sheet in managing learning is at a score of 4.85, the student activity sheet shows a score of 80.2% and the learning achievement test is 93%. So, it can be concluded that the e-module is valid, practical, and effective. \u0000Keywords: valid, practical, effective","PeriodicalId":106635,"journal":{"name":"KnE Engineering","volume":"11 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140258195","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}
Hydrogen peroxide (H2O2) is a widely used chemical as an eco-friendly oxidizing agent, with water being the only byproduct of oxidation in applications like bleaching pulp and paper, making electronic semiconductors, chemical and detergent synthesis, and wastewater treatment. The direct synthesis approach is preferred to provide the environmentally friendly production of H2O2 for market requirements. Bimetallic PdNi nanocatalysts were chosen for this study because of their catalytic activity and the structural characteristics of the material system. First, for the development of order-structured bimetallic PdNi nanocatalysts based on mesoporous carbon template after hydrogen-assisted heat treatment at 750∘C. The transformation of the disordered structure into ordered intermetallically structured PdNi alloys with higher alloying extents was confirmed by X-ray absorption spectroscopy (XAS) and high-resolution transition electron microscopy (HR-TEM). Then, to improve the oxygen oxidation reaction, two-electron pathway selectivity was used by TiO2-C as a support-ordered structure material to facilitate strong metal-support interactions. XAS and X-ray photoelectron spectra (XPS) techniques show more clear evidence of metal-support interactions with electron transfer from defects in the TiO2-C support to the ordered alloyed PdNi nanocatalysts, resulting in record productivity and selectivity of H2O2 production at ambient conditions. The results demonstrated in this study will enlighten a reliable design of new heterogeneous nanocatalysts with ordered structure. Electron transfer between hybrid support and active sites can clarify the catalytic behavior and prompt further research during the direct synthesis of hydrogen peroxide. Keywords: hydrogen peroxide, direct synthesis, heterogeneous nanocatalysts PdNi, TiO2-C
{"title":"New Design PdNi Heterogeneous Nanocatalysts for the Direct Synthesis of Hydrogen Peroxide","authors":"Tan-Thanh Huynh, Thi Tran Anh Tuan, M. Nugraha","doi":"10.18502/keg.v6i1.15344","DOIUrl":"https://doi.org/10.18502/keg.v6i1.15344","url":null,"abstract":"Hydrogen peroxide (H2O2) is a widely used chemical as an eco-friendly oxidizing agent, with water being the only byproduct of oxidation in applications like bleaching pulp and paper, making electronic semiconductors, chemical and detergent synthesis, and wastewater treatment. The direct synthesis approach is preferred to provide the environmentally friendly production of H2O2 for market requirements. Bimetallic PdNi nanocatalysts were chosen for this study because of their catalytic activity and the structural characteristics of the material system. First, for the development of order-structured bimetallic PdNi nanocatalysts based on mesoporous carbon template after hydrogen-assisted heat treatment at 750∘C. The transformation of the disordered structure into ordered intermetallically structured PdNi alloys with higher alloying extents was confirmed by X-ray absorption spectroscopy (XAS) and high-resolution transition electron microscopy (HR-TEM). Then, to improve the oxygen oxidation reaction, two-electron pathway selectivity was used by TiO2-C as a support-ordered structure material to facilitate strong metal-support interactions. XAS and X-ray photoelectron spectra (XPS) techniques show more clear evidence of metal-support interactions with electron transfer from defects in the TiO2-C support to the ordered alloyed PdNi nanocatalysts, resulting in record productivity and selectivity of H2O2 production at ambient conditions. The results demonstrated in this study will enlighten a reliable design of new heterogeneous nanocatalysts with ordered structure. Electron transfer between hybrid support and active sites can clarify the catalytic behavior and prompt further research during the direct synthesis of hydrogen peroxide. \u0000Keywords: hydrogen peroxide, direct synthesis, heterogeneous nanocatalysts PdNi, TiO2-C","PeriodicalId":106635,"journal":{"name":"KnE Engineering","volume":"2 27","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140258589","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}
This study aims to design, manufacture, and implement virtual reality as an alternative for immersive campus socialization for SMA/SMK students in South Sulawesi. The target of this study was to assess the level of acceptance and readiness of students in SMA/SMK to use virtual reality as an alternative medium for campus outreach. This study used descriptive quantitative techniques with data sources based on direct observation and data from the online questionnaires. The main stages of the research method start from topic identification, literature study, research design, data preparation, application development, implementation of applications that have been made, data collection, analysis and interpretation of data, preparation of results reports, and dissemination. The results of this study obtained data that, of the total respondents who were examined, 71.4% of the total respondents said they had never heard of the Makassar PSDKU polymedia campus; 75% of the total respondents stated that they felt as if they were walking around the Polimedia campus; meanwhile, 78.6% of the total respondents stated that they were interested in the campus using socialization media as an alternative to using a campus virtual tour. Based on the results of the study, it was concluded that virtual reality can be recommended as an alternative media for campus outreach at Polimedia PSDKU Makassar which is immersive for SMA/SMK students. Keywords: virtual reality, immersive, media socialization
{"title":"``Virtual Reality as an Alternative Media for Socialization of Polimedia PSDKU Makassar CAMPUS''","authors":"Syahrir Nawir, Muh Sakir, Najmawati Sulaiman, Adlin, Anggie Novita Rizky","doi":"10.18502/keg.v6i1.15360","DOIUrl":"https://doi.org/10.18502/keg.v6i1.15360","url":null,"abstract":"This study aims to design, manufacture, and implement virtual reality as an alternative for immersive campus socialization for SMA/SMK students in South Sulawesi. The target of this study was to assess the level of acceptance and readiness of students in SMA/SMK to use virtual reality as an alternative medium for campus outreach. This study used descriptive quantitative techniques with data sources based on direct observation and data from the online questionnaires. The main stages of the research method start from topic identification, literature study, research design, data preparation, application development, implementation of applications that have been made, data collection, analysis and interpretation of data, preparation of results reports, and dissemination. The results of this study obtained data that, of the total respondents who were examined, 71.4% of the total respondents said they had never heard of the Makassar PSDKU polymedia campus; 75% of the total respondents stated that they felt as if they were walking around the Polimedia campus; meanwhile, 78.6% of the total respondents stated that they were interested in the campus using socialization media as an alternative to using a campus virtual tour. Based on the results of the study, it was concluded that virtual reality can be recommended as an alternative media for campus outreach at Polimedia PSDKU Makassar which is immersive for SMA/SMK students. \u0000Keywords: virtual reality, immersive, media socialization","PeriodicalId":106635,"journal":{"name":"KnE Engineering","volume":"43 18","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140260336","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}
M. Nugraha, Supardianingsih, Susiani, Tan-Thanh Huynh
The rapidly growing population in the world demands an increase in the support of human life by providing massive production of food and medicine. As a result, the catalyst used in the production of the material plays a key role leading to intensive research. Synthesis of nanomaterials is becoming an important way to discover new catalysts by changing sizes and combining two or more metals on the nanoscale. Pd-based catalysts are well-known catalysts such as Pd-Pt, Pd-H, and Pd-Au for many chemical reactions such as the direct synthesis of hydrogen peroxide. Therefore, the provision of nanocluster bimetallic catalysts offers more benefits such as the rearrangement of surfaces to suit characteristics and lower material costs. However, the stability of the catalyst challenges researchers beyond reactivity and selectivity. In this paper, we predict the structural stability of Pd-based catalysts using a density functional theory approach. We use the 38-atom model in the M6@Pd32 core shell, where M is Hg, Pt, Au, Cu, Ni, Cu, Zn, Ag, Pd, and Cd, Pt. We prepared and investigated a series of structures such as truncated octahedral (TO) and polyhedral (PH) by calculating the excess energy. Based on our calculations and placing the monometallic Pd38 nanocluster as a reference, the TO structure is more stable than that of PH. The Zn6@Pd32 system showed the most stable followed by Cd6@Pd32 and Hg6@Pd32 was the worst. Keywords: structural stability, core-shell, nanocluster, Pd-based catalyst
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