Admin Website UNIKOM

Tag: AI-based campus

  • Smart Monitoring of Nutrient Content, pH Condition and Temperature in Vegetable Leaf Grown through Deep Flow Technique

    Smart Monitoring of Nutrient Content, pH Condition and Temperature in Vegetable Leaf Grown through Deep Flow Technique

    Authors: Agis Abhi Rafdhi, Asep Bayu Dani Nandiyanto, Dedeng Hirawan, Eddy Soeryanto Soegoto, Senny Luckyardi, Raiswati Untsa Mega

    DOI: 10.48317/IMIST.PRSM/morjchem-v9i4.29764

    Abstract

    This research aims to develop a hydroponic farming system by utilizing the Internet of Things (IoT) as a medium for monitoring the quality of plant nutrition, pH Condition, and Temperature. The research method used quantitative analysis of plant nutrient content measurements for 26 days with two treatments, namely indoor and outdoor. We used several vegetable leaves (i.e. Bok Choy, Water Spinach, and Lettuce) as these plants are easy to grow, have a low risk of withering, and have a relatively short planting time until harvest (26 days). The findings presented that by implementing IoT in agriculture, the nutritional content of plants can be measured accurately, from pH, plant nutrients (ppm), to temperature. With the monitoring system, we can detect whether the nutrient content is deficient or excessive. The system can also maintain optimum conditions in nutrient content quality, pH condition, and temperature. In conclusion, this research can be used as a reference for developing an optimal hydroponic monitoring system. © 2021. All Rights Reserved.

    Author keywords

    Hydroponic; Internet of Things; Smart monitoring; Vegetables Leaf

    This article can be accessed at https://www.scopus.com/pages/publications/85123265168

  • Research Trends in Farming System Soil Chemical: A Bibliometric Analysis using VOSviewer

    Research Trends in Farming System Soil Chemical: A Bibliometric Analysis using VOSviewer

    Authors: Dedeng Hirawan, Dina Oktafiani, Tegar Ahmad Fauzan, Senny Luckyardi, Nursuriati Jamil

    DOI: 10.48317/IMIST.PRSM/morjchem-v10i3.33145

    Abstract

    This study was conducted to determine (1) the growth of the number of scientific publications in the field of soil chemical farming systems, (2) the productivity of researchers, (3) the number of publications by field/subject, and (4) a map of the development of publications based on keywords. This research used descriptive quantitative methods with bibliometric analysis. Data collection was carried out by searching through the Google Scholar database with the keywords “farming system soil chemical” with the categories “authors, publication name, article title, keywords in the period 2017–2021 using Publish or Perish 8 software. In addition, VOSviewer software was used to analyze the development maps’ publications. The study results show that the growth of scientific publications in the field of soil chemical farming systems shows a decline, and the highest decline occurred in 2021, namely as many as 21 documents (2.1%). In conclusion, the most publications published in 2017 were 420 publications (40.8%). The subjects with the most studies were soil, system, chemical, production, studies, farmers, and agriculture. The connections between topics are grouped into ten clusters, as seen through network visualization. This research is expected to assist researchers in determining the theme to be studied and can also be a reference for research on soil chemistry. © 2022. Moroccan Journal of Chemistry. All Rights Reserved.

    Author keywords

    Farming system soil chemical. publish or perish; Vosviewer

    This article can be accessed at https://www.scopus.com/pages/publications/85132712801

  • Development of Electronic Portfolio-Based Assessment Strategies in Chemistry Learning to Assess Students’ Concept Mastery

    Development of Electronic Portfolio-Based Assessment Strategies in Chemistry Learning to Assess Students’ Concept Mastery

    Authors: Nahadi, Wiwi Siswaningsih, Pupung Purnawarman, Asri Indriani, Tri Lestari, Nuryana, Chepi Nur Albar

    DOI: 10.48317/IMIST.PRSM/morjchem-v10i1.31714

    Abstract

    This study aims at developing an electronic portfolio-based assessment strategy as valid and reliable assessment for learning on colloidal system material to measure student concept mastery. This study used a Design-Based Research (DBR) with a 4D development model that is carried out until stage 3 (Define, Design, and Development). The participant in this study were 10 students of class XI in one of High Schools in Bandung who were involved in the limited trial phase. The concept mastery ability measured in this study used the Revised Bloom’s Taxonomy framework. However, the researcher only used the cognitive level of applying (C3) and analyzing (C4) based on the analysis of Core Competence and Basic Competence in the syllabus for colloidal system material. The tasks developed in this electronic portfolio assessment consist of three tasks, namely a concept map of the types of colloids; papers on the properties of colloids, the application of the properties of colloids in life, and how to make colloids; and a practical simulation report on the colloidal properties of the Tyndall effect. The results showed that the instrument was valid with a CVR value of 0.6 – 1.0 and reliable with a Cronbach Alpha value of 0.679 – 1.000. Based on the results of a limited trial of the developed electronic portfolio-based assessment strategy, it can measure student concept mastery on colloidal system material. Overall, the average level of student concept mastery is categorized as good. With details in the category of very good (30%), good (50%) and sufficient (20%). © 2022

    Author keywords

    Colloidal System; Concept Mastery; Electronic Portfolio Assessment

    This article can be accessed at https://www.scopus.com/pages/publications/85131324288

  • The Influence of Applying Green Marketing Mix by Chemical Industries; VOSviewer Analysis

    The Influence of Applying Green Marketing Mix by Chemical Industries; VOSviewer Analysis

    Authors: Senny Luckyardi ; Ratih Hurriyati ; Disman ; Puspo Dewi Dirgantari

    DOI: 10.48317/IMIST.PRSM/morjchem-v10i1.31754

    Abstract

    Marketing mix is a form of strategy in combining various kinds of marketing activities in order to create a maximum combination so that the most satisfying results will appear. Green marketing mix emphasizes the consideration of environmental and development friendly aspects sustainable (sustainability). Chemical industries are often the root cause of environmental damage, therefore the influence of applying green marketing in chemical industries is become interesting theme to be analyzed. To provide a better mapping in this research area, the using of VOSviewer is recommended. Having the purpose to systematically analyzing and demonstrating bibliometric data, VOSviewer enable to identify directions and symptoms of research and growth of knowledge in various disciplines. It’s described step-by-step analysis to create an easier utilization of VOSviewer for the first-time user. This study provides data analysis regarding the green marketing application in chemical industries throughout five years (2017-2021) by utilizing mapping tools in the VOSviewer. Qualitative descriptive was used to describe the bibliometric analysis performance by producing network visualization of this topic. 988 relevant published journals were found ranging from 2017-2021, which were then grouped into seven clusters. After grouping the journal data, we discovered that the total number of articles published on the topic of green marketing mix in chemical industries from 2017 to 2021 is 192. The conclusion resulted that the novelty in green marketing mix topic is still wide open to learn, since it’s related to various field. © 2022

    Author Keywords

    Bibliometric; Chemical Industries; Green Marketing Mix; VOSviewer

    This article can be accessed at https://www.scopus.com/pages/publications/85131324708?

  • Teaching the Principle of Sunscreen Material using ZnO, TiO2, SiO2, Al2O3, and CeO2 to Elementary School Students

    Teaching the Principle of Sunscreen Material using ZnO, TiO2, SiO2, Al2O3, and CeO2 to Elementary School Students

    Authors: Yusup Maulana ; Wahyu Sopandi ; Asep Kadarohman ; Asep Bayu Dani Nandiyanto ; Natasha Puspa Dewi

    DOI: –

    Abstract

    This study aims at analyzing the experimental demonstration teaching method using video on elementary school students’ science learning outcomes and identifying the principle of sunscreen using various materials against the sun. The principle of sunscreen is taught using photo paper smeared with a light-sensitive liquid. After that, the sunscreen material is dripped on the paper, coated with transparent plastic, exposed to sunlight, and observed for changes. To analyze the physical properties in the morphology of the sunscreen material observations with SEM and XRD. Students’ understanding is assessed through a 20-pretest posttest question supported by a learning video, where the research subjects are 23 elementary school students in Indonesia. The results show that the principle of sunscreen material using ZnO, TiO2, SiO2, Al2O3, and CeO2 can keep the light-sensitive paper from changing color after being exposed to sunlight. There was an increase in students’ understanding of the principle of sunscreen material after being given a learning video. This study shows and useful for informing the principle of sunscreen using various materials and students’ understanding of it. © 2022

    Author Keywords

    Elementary school; Sunscreen material; Teaching; Ultraviolet rays

    This article can be accessed at https://www.scopus.com/pages/publications/85131332572?

  • Development of Minimum Competency Assessment (AKM) on Chemical Materials

    Development of Minimum Competency Assessment (AKM) on Chemical Materials

    Authors: Nahadi, W. Siswaningsih, P. Purnawarman, T. Lestari, A. Ekaputri Febriani, T. Rohmawati

    DOI: 10.48317/IMIST.PRSM/morjchem-v10i3.33067

    Abstract

    This study aims to produce a Minimum Competency Assessment (AKM) instrument on quality reaction rate material in terms of reliability, distinguishing power, validity, and difficulty level. The method used development and validation. The participants were 25 class XII students at Senior High School in Bandung, Indonesia. This research resulted in a minimum competency assessment instrument on response rate material, which consists of six complex multiple-choice questions, five multiple-choice questions, two matching questions, and seven essay questions. The development results of the validity test on the AKM instrument based on the 14 items were declared valid. The empirical validity test results obtained from 8 objective questions and seven descriptive items were declared valid. The test reliability value was calculated using the IBM SPSS 25 Cronbach Alpha application, namely in the objective question of 0.625 with high criteria. In the description question, the score was 0.613, with high criteria. The results of difficulty level analysis items obtained in the objective questions are five questions included in the moderate criteria of 0.30-0.69 and 8 items included in the difficult criteria of 0.00-0.29. The description of 5 items included in the medium criteria of 0.30-0.69 and 2 items included in the difficult criteria of 0.00-0.29. However, the test’s difficulty level has not increased proportionately because there are no easy criteria items. The analysis of the discriminatory power items on the objective questions obtained very good criteria, namely nine items of 0.40-1.00. Besides, the description questions that have distinguishing power with very good criteria are four items of 0.40-1.00 and good criteria, namely two items of 0.30-0.39. © (2022), (University Mohammed Premier Oujda). All Rights Reserved.

    Author Keywords

    Analysis; Minimum Competency Assessment (AKM); Reaction rate; Reliability; Validity

    This article can be accessed at https://www.scopus.com/pages/publications/85164522334?

  • Development of Minimum Competency Assessment (AKM) on Chemical Materials

    Development of Minimum Competency Assessment (AKM) on Chemical Materials

    Authors: Nahadi, W. Siswaningsih, P. Purnawarman, T. Lestari, A. Ekaputri Febriani, T. Rohmawati

    DOI: 10.48317/IMIST.PRSM/morjchem-v10i3.33067

    Abstract

    This study aims to produce a Minimum Competency Assessment (AKM) instrument on quality reaction rate material in terms of reliability, distinguishing power, validity, and difficulty level. The method used development and validation. The participants were 25 class XII students at Senior High School in Bandung, Indonesia. This research resulted in a minimum competency assessment instrument on response rate material, which consists of six complex multiple-choice questions, five multiple-choice questions, two matching questions, and seven essay questions. The development results of the validity test on the AKM instrument based on the 14 items were declared valid. The empirical validity test results obtained from 8 objective questions and seven descriptive items were declared valid. The test reliability value was calculated using the IBM SPSS 25 Cronbach Alpha application, namely in the objective question of 0.625 with high criteria. In the description question, the score was 0.613, with high criteria. The results of difficulty level analysis items obtained in the objective questions are five questions included in the moderate criteria of 0.30-0.69 and 8 items included in the difficult criteria of 0.00-0.29. The description of 5 items included in the medium criteria of 0.30-0.69 and 2 items included in the difficult criteria of 0.00-0.29. However, the test’s difficulty level has not increased proportionately because there are no easy criteria items. The analysis of the discriminatory power items on the objective questions obtained very good criteria, namely nine items of 0.40-1.00. Besides, the description questions that have distinguishing power with very good criteria are four items of 0.40-1.00 and good criteria, namely two items of 0.30-0.39. © (2022), (University Mohammed Premier Oujda). All Rights Reserved.

    Author Keywords

    Analysis; Minimum Competency Assessment (AKM); Reaction rate; Reliability; Validity

    This article can be accessed at https://www.scopus.com/pages/publications/85164522334?

  • Environmental Quality Analysis on Jatiluhur Reservoir

    Environmental Quality Analysis on Jatiluhur Reservoir

    Authors: Lia Warlina ; Senny Luckyardi ; Agis Abhi Rafdhi ; Herry Saputra ; Natasha Puspa Dewi

    DOI: –

    Abstract

    This study aims to examine the air quality in the Jatiluhur reservoir and observe the surrounding area by analyzing the water and air quality. The study of air quality is used as a reference for policy analysis to measure the air quality that is a source for the surrounding community. The research method used a descriptive analysis using a qualitative approach based on the parameters studied. Some of the parameters studied included the degree of acidity (pH), temperature (oC), Total Dissolved Solid (TDS), and Electrical Conductivity (EC). A total of three water and soil samples from three different locations were taken along the flow of the Jatiluhur reservoir dam. Meanwhile, checks were carried out for air quality measurements at one point by taking data twice. The results show that the air quality is in a safe status starting from TDS, EC, pH, and temperature parameters. While for soil quality, the relative humidity parameter does not enter the normal range because the water content is higher (wetter) even though the content is generally still safe. In conclusion, air quality is still very safe, starting from PM 10, PM 2.5, TVOC, and HCHO levels, all of which are in “Good” status. Based on the measurement of several air, soil, and air quality parameters, it can guarantee that the air quality content in Jatiluhur reservoir is in a safe status for use in daily community activities. © 2022

    Author Keywords

    Air Quality; Jatiluhur Dam; Water and Soil Quality

    This article can be accessed at https://www.scopus.com/pages/publications/85131317727?

  • VOSviewer Application Analysis: Computational Physical Chemistry Case Study

    VOSviewer Application Analysis: Computational Physical Chemistry Case Study

    Authors: Alif Finandhita, Raiswati Unsta Mega, Rizky Jumansyah, Agis Abhi Rafdhi, Dina Oktafiani

    DOI: https://doi.org/10.48317/IMIST.PRSM/morjchem-v10i1.31756

    Abstract

    Computational physics chemistry is a branch of chemistry which in its application uses the results of theoretical chemistry. It is then translated into a computer program to be able to calculate the properties of molecules and their changes. Computational chemistry can also simulate large systems such as liquids, gases, liquid crystals, and solids, then apply these programs to real chemical systems. The purpose of this research is to conduct a bibliometric analysis using computational physics chemistry as a case study by combining mapping analysis using VOSviewer software. The bibliometric and descriptive quantitative approach were applied in this research. The data obtained is a search result based on the keyword “computational physics chemistry” in Google Scholar. From the search results, 1000 articles published were found ranging from 2016-2021. The results show that computational physic chemistry research with term study was identified as the most studied in the 2016–2021 period. In conclusion, this study shows the importance of conducting a bibliometric analysis, especially in the field of computational physics chemistry. It is expected that this research can be a reference for future research in conducting and determining research themes.

    Keywords: Bibliometric, Computational Physical Chemistry, Data Analysis, VOSviewer

    This article can be accessed at https://revues.imist.ma/index.php/morjchem/article/view/31756

  • Computational Analysis of Waste Management and Entrepreneur using VosViewer application

    Computational Analysis of Waste Management and Entrepreneur using VosViewer application

    Author: Eddy Soeryanto Soegoto ; Senny Luckyardi ; Agis Abhi Rafdhi ; Dina Oktafiani

    DOI: 10.48317/IMIST.PRSM/morjchem-v10i3.33142

    Abstract

    This study aims at analyzing waste management and its relationship with entrepreneurs through research mapping analysis using the VOSviewer application. This research method used descriptive analysis with a bibliometric quantitative approach based on research terms. The research data obtained is based on search results through Google Scholar by using Publish or Perish software with “Waste Management and Entrepreneur” as the keywords. From the data generated in the last five years (2017-2022), 997 scientific articles were obtained. The study results show that research regarding the “Waste Management and Entrepreneurs” topic in the range of 2018-2019 is numerous. However, the trend of research on this topic began to decline in the following years. In conclusion, research with the “Waste Management and Entrepreneur” topic is currently still a relevant field of research to be studied and it is not a research field that has been widely discussed. Therefore, this research is expected to be a reference for researchers in determining the research topic to be studied. © 2022. Moroccan Journal of Chemistry. All Rights Reserved.

    Author keywords

    Bibliometric; Data analysis; Vosviewer; Waste management.

    This article can be accessed at: https://www.scopus.com/pages/publications/85132771598