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Designing talent pool information systems at managerial level at PT. Pindad Enjiniring Indonesia

IOP Conference Series: Materials Science and engineering 2020年第4期830卷

作者： P Renosori B Wijaya O Rukmana Industrial Engineering Study Program Faculty of Engineering Islamic University of Bandung (UNISBA) Bandung Indonesia

The background of this study is to determine human factors as key factors that are very important in increasing company competitiveness. The way the company manages this factor is by applying the concept of talent management. PT. Pindad Enjiniring Indonesia (PT PEI) is one of the companies that is implementing the concept, but obstacles are found at managerial level in the company, where the performance appraisal and potential are very slow. Meanwhile, the results of the assessment are needed to determine the right management for the employee's career. Therefore, companies need what is called a Talent Pool. The term Talent Pool in Talent Management is a tool used as a talent centre to classify, recommend, and develop employee talent used by several companies or experts. In this tool, the classification process uses the HAV 5X5 Matrix which will be developed into an information system design using the FAST method. The Talent Pool design is expected to be a tool to present performance and potential assessments, speed up the assessment process to present the results of the assessment, classify results to determine employee competencies, and be able to be the best recommendation tool in determining an employee's career path.

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Reaction pathways design based on the associative property of addition

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AIP Conference Proceedings 2023年第1期2975卷

作者： Fitri N. Febriana Siti N. Nafisah Lusia S. P. Boli Rizka N. Fadilla Wun F. Mark-Lee Ira Puspitasari Febdian Rusydi Research Center for Quantum Engineering Design Faculty of Science and Technology Universitas Airlangga Jl. Mulyorejo Surabaya 60115 Indonesia Theoretical Physics Research Group Department of Physics Faculty of Science and Technology Universitas Airlangga Jl. Mulyorejo Surabaya 60115 Indonesia Department of Chemistry Faculty of Science Universiti Teknologi Malaysia 81310 UTM Johor Bahru Johor Malaysia Information System Study Program Faculty of Science and Technology Universitas Airlangga Jl. Mulyrejo Surabaya 60115 Indonesia

The associative property of addition facilitates the change of the group member. If the group members are molecules, can we apply this property to study a chemical reaction? The aim of this paper is to use the associative property of addition to design reaction pathways of methyl acetate hydrolysis in the acid environment. The reaction is found in Alzheimer’s Disease. We evaluate the designed pathways using activation energy obtained from density functional theory calculation. The results show the associative property of addition can be used to design four reaction pathways of the hydrolysis. The calculations show the acidity significantly affected the activation energy. This result agrees with the common knowledge. Hence, we have demonstrated the usefulness of the associative property of addition in designing chemical reaction pathways.

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Aluminium Recovery from Water Treatment Sludge as Coagulant by Acidification

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IOP Conference Series. Earth and Environmental Science 2020年第1期448卷

作者： Ruziqna, D P Suwartha, N Moersidik, S S Adityosulindro, S Environmental Engineering Study Program Department of Civil Engineering Faculty of Engineering Universitas Indonesia Depok 16424 Indonesia

Aluminium in water treatment sludge can be recovered as coagulants by acidification method. However, there are some factors that affect efficiency in recovering aluminium, such as stirring speed during acidification, pH, and sludge characteristic. This study aims to find the optimum acidification stirring speed in recovering alum and to evaluate the performance of recovered coagulant compared to a pure coagulant. Aluminium recovery is carried out by adding sulphuric acid until the pH of the sludge reaches 2.5. The acidic sludge is stirred for 30 minutes, with acidification stirring speed is varied from 240–720 rpm, and left for settling until the supernatant is formed. The supernatant was used as a recovered coagulant, examined using a jar test to determine the optimum dose, and compared with the pure coagulant. The results show that the optimum acidification stirring speed was obtained at 540 rpm, where mass balance shows aluminium recovery efficiency of 16.5%. The optimum dose for recovered coagulant was 25 ppm, with a turbidity reduction of 93.38% in jar test. While the optimum dose for pure alum was 20 ppm, with turbidity reduction of 93.26%. Though potentially reduced higher turbidity, the recovered coagulant has slightly lower quality than the pure coagulant, which required a higher optimum dose.

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An assessment of high carbon stock and high conservation value approaches in mining area

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IOP Conference Series: Earth and Environmental Science 2021年第2期807卷

作者： S H Larekeng M Nursaputra Nasri A S Hamzah A S Mustari A R Arif A P Ambodo Y Lawang A Ardiansyah Laboratory of Biotechnology Forestry Engineering Study Program Faculty of Forestry Universitas Hasanuddin Makassar 90245 Indonesia Laboratory of Forestry Planning and Information System Forestry Science Study Program Faculty of Forestry Universitas Hasanuddin Makassar 90245 Indonesia Laboratory of Conservation of Forest Resources and Ecotourism Forestry Science Study Program Faculty of Forestry Universitas Hasanuddin Makassar 90245 Indonesia Faculty of Engineering Universitas Hasanuddin Gowa 91711 Indonesia Faculty of Mathematics and Natural Sciences Universitas Hasanuddin Makassar 90245 Indonesia Vale Indonesia Sorowako East Luwu 92983 Indonesia

The impact of forest degradation due to open-pit mining activities causes sustainable ecological damage. Mining activities that are not organized due to the mineral exploration process have resulted in many forest areas experiencing degradation. This degradation certainly reduces the level of carbon sequestration in the area, impacting the sustainability of environmental functions around the mining area. The high carbon stock (HCS) approach is a way to help companies implement their 'no deforestation' commitments. The high carbon stock approach will identify forests that must be protected and land that can be developed. Forests with high carbon stocks are maintained because they function as carbon stores, habitats for biodiversity, and provide the necessities of life for local communities. Therefore, this study aims to obtain data on the potential for carbon stocks and create a spatial model for distributing carbon content in the concession area of PT. Vale Indonesia can later be determined as high conservation value (HCV) areas using the high carbon stock approach. Measurement of carbon content in the study used an allometric equation that has been developed, then the distribution of carbon was made using the spatial vegetation index model obtained from Sentinel 2 imagery. The results showed an area of 30,526.49 (42.97%), which had high carbon stock with an average carbon stock of 106.09 ton/ha, which needed to be maintained as an area of high conservation value in the mining area of PT. Vale Indonesia.

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Application of Online Science Practicum by Using Microsoft Teams and Learning Management System (LMS) During the Covid 19 Pandemic

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Journal of Physics: Conference Series 2021年第1期2019卷

作者： W A Pertiwi L A Sanjaya Nadiyah Hasirah M Haramen A S Budi E Zarvianti R W D Puspa L K Sianipar W Qoiriyah H Sitompul Islamic Education Management Study Program Faculty Islamic of Education and Teacher Training Muhammad Azim Institute Jambi Indonesia Department of Physics Faculty of Mathematics and Natural Science Universitas Negeri Jakarta Indonesia. Sharia Economics Study Program Faculty of Sharia and Law Muhammad Azim Islamic Institute Jambi Indonesia Physics Education Study Program STKIP Muhammadiyah Sungai Penuh Indonesia Kartika VIII-1 Senior High School Jakarta Indonesia Department of Physics Education Universitas Pelita Harapan Tangerang 15811 Indonesia Informatics Engineering study program Faculty of Engineering Sheikh Yusuf Islamic University Tangerang Indonesia

The research objective of this is to see how to apply science practicum online using Microsoft Teams and Learning Management System (LMS). The form of this research is classroom action research which aims to apply the online science practicum during the Covid 19 pandemic. Therefore, it is carried out using two cycles in the application of online science practicum. The subjects of this study were students of the seventh semester in the Natural Science practicum course. Through observation and evaluation, it is shown that in the cycle I the percentage of practicum implementation which includes aspects of preparation, process and data and practicum results is 87.5%, in cycle II it has increased to 92.5%. In the assessment aspect of the practicum report, the average practicum assessment obtained in the first cycle was 3.09 from the highest score of 4 and in the second cycle was 3.7, while the aspect of student knowledge about the use of the Microsoft team which was taken using google form was 93%. In the aspect of student knowledge about the use of Learning Management System (LMS) by 75% and aspects of student understanding in the implementation of online science practicum using Microsoft Teams by 75%.

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Analysis of chemical compound in essential oil from clove stem using the FTIR and GCMS methods

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AIP Conference Proceedings 2023年第1期2738卷

作者： Hermin Pancasakti Kusumaningrum Galih Wiji Agung Fakhri Santo Khoirudin Lailatul Khoiriyah Ardian Fikri Amrullah Farah Hanifah Handika Arya Listyanto Muhammad Zainuri I. Nyoman Widiasa Indra Gunawan Biotechnology Study Program Biology Department Faculty of Science and Mathematics Diponegoro University Jl. Prof. Soedharto SH. Tembalang Semarang 50275 Indonesia Department of Chemical Engineering Faculty of Engineering Diponegoro University Jl. Prof. Soedharto SH. Tembalang Semarang 50275 Indonesia Chemistry Department Faculty of Science and Mathematics Diponegoro University Jl. Prof. Soedharto SH. Tembalang Semarang 50275 Indonesia Marine Laboratory Faculty of Fisheries and Marine Sciences Diponegoro University Jl. Prof. Soedharto SH. Tembalang Semarang 50275 Indonesia

Clove (Syzigium aromaticum) is an essential oil-producing plant which is widely found in Indonesia. Essential oil was made from it flower buds, leaves and stems for toothpaste, soaps, cosmetics, perfumes and cigarettes industries. Clove oil has been used in medicinal purposes for relieving pain, treating infection, easing digestive upset, dental and topical application. The objectives of the GC-MS analysis is to measure the type and content of compounds present in the clove stem sample, while the FT-IR analysis is to obtain the infrared spectrum on the clove stem sample through emission or absorption of solids, liquids. and gases in the sample. The chemical functional groups that were read through FT-IR on stem clove oil indicated that it contained aromatic compounds in the form of eugenol and eugenol acetate. The eugenol compound was the main component of the clove stem. The results of GC-MS analysis showed the chemical composition of clove oil consists of 28 compounds with the dominant components of clove oil are eugenol and caryophyllene (93% and 4.80%).

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Thermogravimetric investigation of Reutealis Trisperma (Blanco) airy shaw and iron sand as bed material at different heating rates pyrolysis

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Journal of Physics: Conference Series 2020年第1期1450卷

作者： Rajendra, I M Winaya, I N S Ghurri, A Wirawan, I K G Department of Mechanical Engineering Politeknik Negeri Bali Kampus Bukit Jimbaran Bali Indonesia Study Program of Mechanical Engineering Faculty of Engineering University of Udayana Bali Indonesia Study Program of Mechanical Engineering Faculty of Engineering University of Udayana Bali Indonesia

This study observed the effect of bed material in the pyrolysis process. Also, other parameter such as the heating rate have been observed. The biomass studied is Sunan Candlenut cake. This biomass is a potential commodity as a producer of biodiesel. Through the method of mechanical press and esterification, it will leave waste in the form of a cake that still contains crude oil. Trapped oil can be converted into bio-oil through the pyrolysis technique. Parameters that affect the pyrolysis process include the addition of bed material and heating rate. Pyrolysis of this candlenut cake has been tested to determine the amount of activation energy. Heating rates are varied to 5, 10 and 20 K per minute and bed material used is iron sand. The testing instruments uses Thermogravimetric Analysis (TGA). The results show that the lowest activation energy of 15.497 [KJ/mol] is achieved when added iron sand at the heating rate of 10 K per minute.

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The study of Coastline Changing and Total Suspended Solid Distribution Based on The Remote Sensing Data in Teluk Lamong Multipurpose Port Terminal

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IOP Conference Series: Earth and Environmental Science 2021年第1期698卷

作者： Widi Agoes Pratikto Ahmad Fitriadhy Muhammad Ilham Maulana Abiyani Choirul Huda Destyariani Liana Putri Liany Ayu Simatupang Nazariano Rahman Wahyudi Rendatiyarso Laksono Anggie Vibriyanti Rossari Dewi Ocean Engineering Departement Faculty of Marine Technology Institut Teknologi Sepuluh Nopember Surabaya 60111 Indonesia Department of Maritime Technology Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu Malaysia Ocean Engineering Study Program Institut Teknologi Kalimantan Kalimantan Timur 76127 Indonesia

Looking forward to the abovementioned conditions, this research is needed to elaborate on the effects of the reclamation to the marine resources in Teluk Lamong Multipurpose Port Terminal as the reclaimed product. In order to describe the impact of the port development, this study will analyze the shoreline changing, the current pattern modeling, as well as the Total Suspended Solid (TSS) modeling using the remote sensing data. The several numbers of expected objectives through this study are to get the set of scientific information on the shoreline changing in Teluk Lamong Multipurpose Port Terminal in the year of 2012 and 2020, to get the figure of current pattern in Teluk Lamong Multipurpose Port Terminal in the year of 2012 and 2020, and to elaborate TSS concentration through the modeling approach in Teluk Lamong Multipurpose Port Terminal in the year of 2012 and 2020. Hence, there is a set of methodologies and tools to cooperate with the information before and after the reclamation. The use of the Digital Shoreline Analysis System (DSAS) software to analyze coastline conditions. The using of Mike 21 to analyze the current pattern and TSS concentrations. In addition to the TSS analysis, it will also need a set of remote sensing data from the Google Earth Engine (GEE). The modeling and calculation give information about the End Point Rate (EPR) values and TSS values. The EPR values are 107.5 m/year, 59,625 m/year and 10,375 m / year. The TSS values are 0-20 mg/L, 20.1-40 mg/L, 40.1-80 mg/L, 80.1-120 mg/L and >120.1 mg/L. Moreover, the result shows the different values among the length of coastline, the current pattern, and TTS in the years 2012 and 2020. The difference in the coastline reaches 950 m at this latest 8 years. While it also brings the changing to the current pattern and sediment transport which show through its current velocity and sediment content per liter of seawater during high and low tide accordingly.

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Development of microcontroller trainer kit as a teaching aid for electronics course

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AIP Conference Proceedings 2024年第1期3115卷

作者： Adhan Efendi Armansyah Maria Mahardini Sakanti Ary Surjanto C. Bambang Dwi Kuncoro Graduate Institute of Precision Manufacturing National Chin-Yi University of Technology No. 57 Section 2 Zhongshan Rd Taiping District Taichung City Taiwan Mechanical Engineering Study Program Faculty of Engineering Universitas Pembangunan Nasional Veteran Jakarta Jalan RS. Fatmawati Raya Pondok Labu Cilandak South Jakarta City Jakarta 12450 Indonesia Department of Refrigeration and Air Conditioning Engineering Politeknik Negeri Bandung Polban Jl. Gegerkalong Hilir Ciwaruga Kec. Parongpong Kabupaten Bandung Barat Jawa Barat 4001 Indonesia Department of Refrigeration Air Conditioning and Energy Engineering National Chin-Yi University of Technology No. 57 Section 2 Zhongshan Rd Taiping District Taichung City Taiwan

This research aims to develop educational and learning support facilities by developing teaching aids for instructors and practical training to enhance the capabilities of laboratories. The developed exercise materials will be used in the electronics laboratory activities to equip vocational students (Diploma 3 and Diploma 4) with practical skills and knowledge of applied electronics. Microcontroller-based teaching materials designed systematically and interactively developed to support the applied electronic system. As a result, the students learn quickly while installing and programming applied electronic hardware applications. There are exercise manuals for up to seven exercise competencies of electronics laboratory activities. Based on the evaluation results from the expert group member and the laboratory chairman, the developed teaching aids are convenient for electronics laboratory classes. Based on student responses using the developed teaching aids, 43% of students mentioned that the microcontroller teaching laboratory kit and hands-on instructions were interactive, easy to use, understandable, and practical, along with the required electronic instructions. They indicated that the material was presented continuously. Meanwhile, 64% of students report that the microcontroller teaching laboratory kit and hands-on instructions motivate, contribute to comprehension, provide convenience, and increase student attention in electronics laboratory activities.

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Analysis of Crude Palm Oil Supply Chain using Food Supply Chain Network (FSCN): A Case study

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IOP Conference Series: Materials Science and engineering 2020年第1期1003卷

作者： Nazaruddin Matondang Juliza Hidayati Buchari Erik Permana Arifin Jeffrey Panama Industrial Engineering Master and Doctoral Study Program Faculty of Engineering Universitas Sumatera Utara Department of Industrial Engineering Faculty of Engineering Universitas Sumatera Utara

Palm oil industry is one of the leading industrial sectors in Indonesia. In order to fulfill CPO demand as well as increasing of CPO sales, a research to analyse the supply chain flow of CPO was conducted. This research was conducted in ABC company, which is a privately owned business entity engaged in oil palm plantations located in South Tapanuli Regency, Indonesia. Analysis of supply chain had been done by using Food Supply Chain Network (FSCN) to define the integration of key business processes provided by original suppliers that provide products, services, and information from end users to customers and other stakeholders. Result of this research clearly defined the supply chain process with a clear flow of material, information and finance. The key process of CPO supply chain is the distribution of raw materials of CPO, namely fresh fruit bunches (FFB) which were collected from privately owned oil palm plantations and nearby community gardens, then processed in mills, deliver to storage tank, and export to customers. Analysis of this case study provided a clear description of CPO supply chain and may let further researchers to easily examine the potential risks at each stages and actors of CPO supply chain.

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