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The developing hairpiece module of the students at vocational secondary schools

Journal of Physics: Conference Series 2021年第1期1833卷

作者： N Marliati M Agrevinna Cosmetology Study Program Faculty of Engineering Universitas Negeri Yogyakarta Indonesia

This study aims to analyze the validity and effectiveness of the hairpiece module. The research method used is development or known as the Research and Development method. The stages in the research process are the analysis, design, development, implementation, and testing stages. Tests carried out in the form of validation were carried out by expert judgments or media and material experts, then the media was tested by students. The results of this study get the assessment of media experts in the very feasible category and material experts in the very feasible category. The results of student trials in small group trials were in the good category and large group trials were included in the good category. The analysis of the pre-test and post-test results showed a gain of 0.53 in the experimental group with moderate criteria and a gain of 0.42.

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UNP Extinct Metric for Bilih Fish (Mystacoleucus padangensis Bleeker) 1

UNP Extinct Metric for Bilih Fish (Mystacoleucus padangensis...

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1st International Conference on Environmental Sciences, ICES 2018

作者： Razak, Abdul Ganefri Barlian, Eri Dewata, Indang Biology Department FMIPA Universitas Negeri Padang Indonesia Department of Electrical Engineering Faculty of Engineering Universitas Negeri Padang Indonesia Environmental Science Study Program Postgraduate Program Universitas Negeri Padang Indonesia

This paper write about UNP Extinc Metric. It is new approach and methods how to calculate extinc condition for wild animals especially bilih fish from Lake Singkarak. We introduce new criteria and ombine to seven categories from IUCN. For bilih fish we can calculate number extinc 49 and the meaning is endangered We conclude after that result we can conserve bilih fsh soon as soon for our life in biosfer. © 2019 Published under licence by IOP Publishing Ltd.

关键词： Fish

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The obstacles of green building implementation in Semarang city

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IOP Conference Series: Earth and Environmental Science 2021年第1期700卷

作者： D N A Nugradi Study Program of Architecture Department of Civil Engineering Faculty of Engineering Universitas Negeri Semarang Indonesia

The Semarang City Government has issued a Mayor Regulation on Green Buildings since 2019. Since then the construction of buildings with a certain floor area in Semarang City must follow this regulation. Evaluating implementation constraints related to green building construction based on the experience of the development actors, is an important thing to do. This study aims to identify obstacles in realizing green buildings in the city of Semarang. Data collection was carried out through a questionnaire survey of respondents from development actors involved in green buildings such as contractors, consultants and project owners and bureaucratic officials related to green building licensing. Data analysis was performed using descriptive analysis to reach agreement between respondents. Next, a hierarchy of these constraints will be sought. Constraints found in realizing green buildings are: lack of socialization from the city government, alternative materials, lack of best practices, experts, and financing. For this reason, a strategy is needed to overcome these obstacles from every aspect or based on a combined consideration of all aspects.

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Exploring non-conventional techniques in biodiesel production: A brief review

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Molecular Catalysis 2025年 584卷

作者： Didik Krisdiyanto Karna Wijaya Akhmad Syoufian Aldino Javier Saviola Riska Astin Fitria Puji Wahyuningsih Bayu Wiyantoko Remi Ayu Pratika Won-Chun Oh J.V. Shanmukha Kumar Department of Chemistry Faculty of Mathematics and Natural Sciences Universitas Gadjah Mada Yogyakarta 55281 Indonesia Chemistry Study Program Faculty of Science and Technology UIN Sunan Kalijaga Yogyakarta 55281 Indonesia Department of Chemistry Faculty of Engineering Universitas Samudra Aceh 24354 Indonesia Department of Chemistry Faculty of Mathematics and Natural Sciences Universitas Islam Indonesia Yogyakarta 55584 Indonesia Study Program of Chemistry Faculty of Mathematics and Natural Sciences Universitas Palangka Raya Palangka Raya 73111 Indonesia Department of Advanced Materials and Engineering Hanseo University Seosan-si Chungcheongnam-do 31962 Republic of Korea Department of Chemistry Koneru Lakshmaiah Education Foundation Vaddeswaram Guntur Andhra Pradesh 522502 India

Biodiesel represents a renewable and sustainable alternative to fossil fuels, offering notable environmental advantages such as reduced greenhouse gas emissions, lower toxicity, and biodegradability. However, its conventional production, primarily via the transesterification of vegetable oils or animal fats, faces considerable challenges, including high production costs, limited feedstock availability, energy intensive processes, and competition with food resources, all of which impede its large-scale implementation. This review critically evaluates the potential of emerging non-conventional feedstocks and production methods to address these limitations and enhance the overall feasibility of biodiesel. Alternative feedstocks such as waste cooking oil, lignocellulosic biomass, and microalgae are highlighted for their abundance, cost effectiveness, and minimal competition with food production, with microalgae particularly notable due to their rapid growth and high lipid content, making them a promising third generation source. Concurrently, advanced production technologies including enzymatic catalysis, supercritical fluids, microwave-assisted, ultrasound-assisted, and photothermal transesterification are examined for their capacity to increase reaction efficiency, reduce energy consumption, and process low quality feedstocks. Noteworthy advancements, such as microwave assisted systems that reduce reaction time by over 99 % and achieve biodiesel yields exceeding 96 % under ambient conditions, underscore the potential for industrial scale application. By comparing conventional and non-conventional approaches, this review underscores the pivotal role of innovation in overcoming technical and economic barriers, offering a comprehensive synthesis of recent developments to inform future research, industrial practices, and policy initiatives aimed at fostering a more sustainable biodiesel industry.

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LoRaWAN Intelligent Outdoor Smart Street Lighting

LoRaWAN Intelligent Outdoor Smart Street Lighting

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IEEE International Conference on Communication, Networks and Satellite (ComNetSat)

作者： Pandapotan Siagian Erick Fernando Faculty of Informatics and Electrical Engineering Computer Engineering Study Program Del Institute of Technology North Sumatera Indonesia School of Information Systems Bina Nusantara University Jakarta Indonesia

ISBN: (数字)9780738125176

ISBN: (纸本)9781665418614

Nowadays, The roads have increased the number of streetlights for the roads vehicles/pedestrians, which raises investment and energy. Observations made to obtain most of the road lights are always active at night, even when there are no vehicles or pedestrians on the road. The problems that occur are the waste of energy sources that are used in streetlights. This research designs the concept of intelligent traffic flow based (LED) for energy optimization, maximum efficiency. This concept uses intelligent light architecture using the LoRaWAN Mesh network. The application of this concept offers system reliability, reduces costs, and makes user satisfaction. The results of this study are demonstrated by experimenting with comparing conventional LED lights. The proposed system, resulting in 33% to 62% energy savings depending on when the usage process in streetlights. Smart lighting LEDs with LoRaWAN provide a remote-control mechanism that can be dynamically adjusted based on environmental conditions, distance, and automatic motion.

关键词： Lighting Sensors Light emitting diodes Intelligent sensors Sensor systems Batteries Roads

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Risk impact on cost and time from the factors of contractor's managerial and operational 8

Risk impact on cost and time from the factors of contractor'...

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8th Annual International Conference 2018 on Science and engineering, AIC-SE 2018

作者： Husin, S. Abdullah Riza, M. Afifuddin, M. Engineering Doctoral Study Program Univ. of Syiah Kuala Banda Aceh23111 Indonesia Faculty of Engineering Univ. of Syiah Kuala Banda Aceh23111 Indonesia

Aceh Province over the last 20 years has experienced different events that can be divided into 3 (three) phases. 1st Phase is the phase of the conflict (2000-2004), 2nd Phase is the post-earthquake and tsunami rehabilitation and reconstruction phase of Aceh (2005-2009), and 3rd Phase is the post-rehabilitation and reconstruction phase (2010-present). Events that occurred during the last 20 years are certainly likely to provide risks to community activities in the province of Aceh. One of the activities affected by the event is the construction project work. The implementation of construction works affected by events in Aceh Province over the last 20 years is highly vulnerable to risks that impact on achieving project objectives such as cost and time. This study analyzes the impact of the contractor and operational managerial risk factors on the cost and timing of construction. Data were obtained from questionnaires distributed to 15 large qualification companies in Aceh Province. Testing data is done by using the validity test and reliability test. Data that has been valid and reliable then analyzed by using Severity Index (SI). The variables of a managerial risk factor with SI to the highest cost in 1st Phase are F5 (incompetent Engineer), 2nd Phase is F3 (lack of contractor experience), and 3rd Phase is F5 (incompetent Engineer). From the operational risk factor, the highest cost SI in each phase is the G3 variable (electrical disorder). The managerial risk factors with the highest time SI in 1st Phase are F6 (lack of top management support), 2nd Phase is F5 (incompetent engineer), and in 3rd Phase is F3 (lack of contractor experience ). From the operational risk factor, the highest time SI at each phase is G3 (electrical disorder). © Published under licence by IOP Publishing Ltd.

关键词： Contractors

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Livelihood strategies of cocoa farmer households in Polewali Mandar district, West Sulawesi

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AIP Conference Proceedings 2024年第1期3098卷

作者： P. Astaman A. N. Hikmah M. Dassir A. R. Siregar H. Hariyadi St Aisyah Agriculture Science Program Graduate School Hasanuddin University Makassar Indonesia Faculty of Agriculture Muhammadiyah University of Sinjai Sinjai Indonesia Agribusiness Study Program Muhammadiyah Institute of Technology and Business Polewali Mandar Indonesia Faculty of Forestry Hasanuddin University Makassar Indonesia Faculty of Animal Husbandry Hasanuddin University Makassar Indonesia Engineering Faculty Muhammadiyah University of West Sumatera Medan Indonesia Faculty of Agriculture University of State Gorontalo Gorontalo Indonesia

Cocoa farming households carry out various livelihood strategies to maintain their survival. The decline in cocoa production is caused by pests and diseases, climate change, bad seeds, and the farmers’ cocoa plants are old. These constraints will affect the condition of cocoa farmer households. This study aims to identify the livelihood strategies and structures carried out by cocoa farming households. The method used in this study uses a quantitative approach using a questionnaire supported by a qualitative approach through in-depth interviews. The research respondents consisted of 30 cocoa farming households in Polewali Mandar Regency. The results of this study show that the livelihood strategies used by cocoa farmer households are engineering income sources and income diversification. The average livelihood structure of cocoa farmer households comes from the non-farm sector.

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Single microtremor method for estimating site fundamental frequency at a site in the historical city of Byblos-Lebanon 8

Single microtremor method for estimating site fundamental fr...

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8th Annual International Conference 2018 on Science and engineering, AIC-SE 2018

作者： Tumur-Uyal, N. Setiawan, B. Oucherif, M.S. Department of Geology and Geophysics National University of Mongolia Mongolia Mongolia Program Study of Geological Engineering Faculty of Engineering Syiah Kuala University Indonesia Geoexplo Cheraga Algiers Algeria

A single ambient noise measurement has been found to be useful in investigating the near-surface geology in particularly for estimating site fundamental frequency. This single microtremor method is very attractive and has been successfully applied in many projects as the method is non-destructive, low cost, feasible for urban environments, fast, and deep penetration. Furthermore, this single microtremor method has been successfully applied in many projects. This paper presents the application of the single microtremor method to estimate the site fundamental frequency at a site in the historical city of Byblos, Lebanon. Pre-processing of industrial origin detection was carried out. Several durations of the measurements were investigated to obtain the most stable results. The site fundamental frequency was validated using one-dimensional site response analysis. The results are presented in this paper. © Published under licence by IOP Publishing Ltd.

关键词： Deep penetration

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The impact of climate change on community, culture, and gender in Central Kalimantan 1

The impact of climate change on community, culture, and gend...

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1st International Symposium of Earth, Energy, Environmental Science and Sustainable Development, JESSD 2020

作者： Marlina, Sari Supriyono Lautt, Bambang Usup, Aswin Sunaryati, Revi Environmental Engineering Study Program School of Environmental Sciences Postgraduate School of Palangkaraya University Palangkaraya73111 Indonesia Head of Environmental Sciences Doctoral Program in Palangkaraya University Palangkaraya73111 Indonesia Head of LPPM Palangkaraya Univesity Palangkaraya University Palangkaraya73111 Indonesia Lecturer of Economics Social Faculty of Agriculture Palangkaraya University Palangkaraya73111 Indonesia

The impacts of climate change in the last decade are tropical storms, rising sea levels, and forest fires. These impacts damage human health, natural resources, and gender equality. This study aimed to identify the effects of climate change in the community, cultural development, and gender roles in addressing climate change in Central Kalimantan. This study used a cross-sectional design with questionnaires. Data collection was carried out using interview and observation techniques with a purposive sampling method. Interviews were conducted with 30 respondents in each district. The results of the study showed that the community has long felt climate change in Central Kalimantan. Still, they do not yet understand that changes in rainfall and temperature patterns reduce environmental conditions and forests' function to support daily life. The openness of access to natural resources for women gives the responsibility of maintaining families during climate change, for example, utilizing plants to be used as weaving material in managing wet and dry forest ecosystems that increase deforestation rates. In the future, stakeholders, including regional government, will issue policies that protect women's rights and interests to ensure that women get the same access and benefits related to information and decision-making, especially in natural resources management. © The Authors, published by EDP Sciences, 2020.

关键词： Climate change

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Decision Support System to Determine the Student Achievement Scholarship Recipients Using Fuzzy Multiple Attribute Decision Making (FMADM) with SAW 7

Decision Support System to Determine the Student Achievement...

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7th International Conference on Cyber and IT Service Management, CITSM 2019

作者： Kurniawan, Helmi Swondo, Ashari P. Sari, Eka Purnama Ummi, Khairul Yufrizal Agustin, Fhery Faculty of Engineering and Computer Science Universitas Potensi Utama Medan Indonesia English Education Study Program Universitas Potensi Utama Medan Indonesia Manajement Study Program Universitas Potensi Utama Medan Indonesia

ISBN: (纸本)9781728129099

Higher education is an education unit that organizes higher education. College students are called students, while college educators are called lecturers. Higher education as a place of learning and self-development Students provide facilities to improve student achievement in the form of student achievement scholarships. This scholarship program is expected to stimulate students' interest in learning to be better. In determining scholarship recipients, the student division selects prospective scholarship recipients based on existing criteria. In the selection process, the student division has difficulty choosing the data of prospective recipients. Because each type of scholarship criteria and has different criteria weights. Calculation of the value of weighting criteria requires precision. Based on the problems that occur, the author designed a decision support system to determine the recipients of achievement scholarships using the SAW method. This system can help student affairs to carry out criteria for recipients of achievement scholarships based on administrative data of prospective scholarship recipients in determining criteria for weighting value calculations. With this system, it can minimize errors to determine prospective scholarship recipients who excel. After testing the use of support systems for deciding scholarship decisions using the SAW method, it can be concluded that a decision support system can assist the student's part in carrying out their duties. © 2019 IEEE.

关键词： Decision support systems

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