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Drilled wells water level data recording system for irrigation of rainfed rice using Arduino and pressure sensor

IOP Conference Series: Earth and Environmental Science 2021年第3期807卷

作者： Muhammad Tahir Sapsal Suhardi Ahmad Munir Dewi Pratiwi Sasmito Agricultural Engineering Study Program Faculty of Agriculture Hasanuddin University Makassar Indonesia

The use of groundwater is one of the alternatives used to increase productivity in rainfed rice fields. Various researches and technologies have been developed to suppress the negative effects of overuse of groundwater. One important parameter is the change in the water level around the well during the pumping process, which is observed through the observation well. For that, we need an instrument to measure changes in water level in real-time. This instrument was developed using the HDL 300 submersible liquid level sensor, which utilizes pressure changes from the water level. To connect the sensor with the Arduino Uno microcontroller module using the HW685 Module. The calibration results show that the linearity of the change in the sensor value to the change in the water level reaches 99% following the equation y = 86.297x + 73.522.

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Developing an engaging whiteboard animation video for vitamins

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Journal of Physics: Conference Series 2021年第1期2111卷

作者： S Purwaningsih A A Anggraeni Culinary Science Study Program Faculty of Engineering Universitas Negeri Yogyakarta Indonesia

Whiteboard animation videos are engaging learning media for Generation Z. This study aimed to develop and assess the feasibility of a whiteboard animation video for vitamin in the Nutrition Science subject for class X culinary vocational school. This study was research and development using a 4D approach (define, design, develop, disseminate). The define stage analyzed the curriculum, material, student character, learning media, and school facilities. The design stage included the writing and assessing the material, the writing and assessing of storyboards, and production team selection. The develop stage was making a video and assessing the feasibility. Animation images were created using Paint Tool Sai. Image conversion from JPEG to SVG was performed with Inkscape. The dubber's voice was recorded with Universal Audio using the Apollo Twin audio interface and Avantone CV12 microphone. The audio was edited in Pro Tools 2020.9. To produce a whiteboard animation video, animation images, captions, dubber's voice, and back sound were combined with VideoScribe. Videos used mpg format. In order to maintain video duration below 10 minutes, the video was divided into two parts. The assessment of video feasibility was carried out by one media expert and two content experts. The assessment of feasibility at the disseminate stage was carried out to 30 users. Based on the feasibility assessment, this video was very suitable to be applied as a learning medium.

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A study of Eye Lens Radiation Dose Reduction During Head CT Scan Examination

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Journal of Medical Imaging and Radiation Sciences 2022年第4期53卷 S25-S25页

作者： Nur Istiqomah, Anisa Dewi, Sofie Nornalita Mufida, Widya Radiology Study Program Faculty of Health Sciences Universitas ‘Aisyiyah Yogyakarta Sleman DI Yogyakarta 55292 Indonesia Biomedical Engineering Program Department of Electrical Engineering Faculty of Engineering Universitas Indonesia Depok West Java 16424 Indonesia Diagnostic Imaging Program Master of Applied Science Health Polytechnic of Semarang Semarang City Central Java 50268 Indonesia

BackgroundHead CT is the most frequently performed examination in every hospital in Indonesia. Considering of the large radiation dose of head CT produces and eye which is one of the most sensitive organs, radioprotection is should be done for every patient of head CT. The aim of this study is to determine the radiation dose of eye lens during head CT compared to the dose limit value determined by ICRP No. 87 of 2000 and provides recommendations for examination protocols that prioritize radiation protection in order to reducing eye lens radiation dose. MethodsRadiation dose measurement of eye lens were performed on 10 patient samples using two different scanograms for every 5 patients. The first five patients had a scanogram parallel to the Orbitomeatal line (OML) and the other 5 patients had a scanogram parallel to the Supraorbitomeatal line (SOML). Radiation dose measurement is done by placing the Thermoluminescent Dosimeter 100-chip on one of the patient's eyelid surfaces. The results of the radiation dose measurements are presented and compared with the standard dose CT scan according to ICRP No. 87 2000. ResultsThe research showed that the procedure using scanogram parallel to OML get eye lens radiation dose 53.889 mGy, 50.729 mGy, 60.407 mGy, 70.952 mGy, 70.952 mGy and the other procedure which is using scanogram parallel to SOML get eye lens radiation dose 7.265 mGy, 6.944 mGy, 8.747 mGy, 6.411 mGy, 6.944 mGy. ConclusionThe procedure using scanogram parallel to the OML produces a higher dose of eye lens and it exceeds the standard head CT eye lens dose according to ICRP No. 87 of 2000. While the another procedure using scanogram parallel to SOML produces a lower radiation dose. Head CT is advised to use a scanogram parallel to SOML to reduce the eye lens radiation dose.

关键词： Head CT scan Radiation Dose Orbitomeatal line Supraorbitomeatal line TLD

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Product quality improvement model considering quality investment in rework policies and supply chain profit sharing

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Journal of Industrial engineering International 2019年第4期15卷 637-649页

作者： Sofiana, Amanda Rosyidi, Cucuk Nur Pujiyanto, Eko Department of Industrial Engineering Faculty of Engineering Universitas Jenderal Soedirman Jl. Prof. Dr. HR. Boenyamin No. 708 Purwokerto 53122 Indonesia Master Study Program of Industrial Engineering Faculty of Engineering Universitas Sebelas Maret Jl. Ir. Sutami No. 36A Surakarta 57126 Indonesia

The aim of this paper is to develop an optimization model for quality improvement by considering quality investment in rework policies and supply chain profit sharing. To improve product’s quality, the decision of process target and its tolerance is important since it directly affects the defective rate, manufacturing cost, and loss to customer due to the deviation of product from its specification. In this research, two rework policies are considered. In the first policy, the rework is done by using the same manufacturing facility, while in the second policy a new process facility was added for rework. Quality improvement in the supply chain environment is also necessary. Hence, profit sharing system is added in the model to strengthen the commitment of the suppliers in improving component quality. In the system, the manufacturer shares the profits to the supplier if the supplier can meet or exceed the quality target specified by the manufacturer. A comparison is given to determine the best quality improvement policy between those two policies considering profit sharing system. From the results of the optimization, the managers can make economic investment decision economically to correct a defective product through cost optimization model and to choose the best option toward the goal of least unit production cost. By using this model, the decision-maker can evaluate any quality investment in order to achieve significant financial return. © 2019, The Author(s).

关键词： Profit sharing Quality improvement Quality incentive Quality investment Rework Variance reduction

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Characterization of crystal structure and mechanical properties of polycaprolactone-hydroxyapatite-collagen nanofiber for scaffold anterior cruciate ligament (ACL) applications

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AIP Conference Proceedings 2022年第1期2663卷

作者： Faika Hanum Salsabilah Djony Izak Rudyardjo Sofijan Hadi Tahta Amrillah Aminatun Aminatun 1Program Study of Biomedical Engineering Department of Physics Faculty of Science and Technology Universitas Airlangga Surabaya 60115 Indonesia 2Program Study of Physics Department of Physics Faculty of Science and Technology Universitas Airlangga Surabaya 60115 Indonesia 3Program Study of Chemistry Department of Chemistry Faculty of Science and Technology Universitas Airlangga Surabaya 60115 Indonesia 4Program Study of Nanotechnology Faculty of Advance technology and Multidiscipline-Universitas Airlangga Surabaya 60115 Indonesia

Recently, it was found that the case of knee injuries could reach a prevalence of 48 per 1000 peoples in one year, with 9% being categorized as Anterior Cruciate Ligament (ACL) injuries. The most common cause of ACL injuries is sports activities. Several strategies were used to heal this injury, such as a treatment, up to autographs bone graft surgery. Current research developments lead to the use of artificial ligaments to heal the ACL injuries which have many advantages over autografts. Thus, this present study aims to fabricate the artificial ligament using hydroxyapatite (HA)/collagen/polycaprolactone (PCL) nanofiber composites. Here, we try to determine the effect of variations of HA, collagen, and PCL compositions in the nanofiber composites by studying their crystal structure and mechanical properties (tensile strength). We use variations of PCL: HA: collagen compositions about of 50:45:5, 50:40:10, 50:35:15, 50:30:20, and 50:25:25 wt%, respectively, in the 10% w/v of solution concentrations. In this present research, the nanofiber was fabricated by using electrospinning method with a voltage of 23 kV, while, the distance between the needle and the collector of about of 15 cm. The XRD and tensile strength tests were used to study the effects of PCL: HA: collagen compositions. In the XRD test, we found that the PCL peaks were detected at 2θ = 21° and 23° and HA was found at 2θ = 31°. The PCL crystal size is found to be 47.82-86.87 nm and the degree of crystallinity is 24.31-36.87%. In the mechanical test, the Ultimate Tensile Strength (UTS) value was obtained in the range of 0.942 MPa-2.864 MPa. It was found that the PCL could increase the tensile strength. However, the obtained UTS value is still far from the UTS of the original human ACL value.

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Disaster Robot Navigation using Behavior-based Systems 3

Disaster Robot Navigation using Behavior-based Systems

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3rd International Conference on Applied Science and Technology, iCAST 2020

作者： Kuswadi, Son Tamara, Mohamad Nasyir Brahmantio, Bagoes Taufiq Sugiharto, Debynata Mohammad, N.U.H. Mechatronic Study Program Machanical and Energy Department Politeknik Elektronika Negeri Surabaya Surabaya Indonesia Mechatronic Study Program Machanical and Energy Department Politeknik Negeri Banyuwangi Banyuwangi Indonesia PT Prima Nurjwan Samudera Indonesia Group Jakarta Indonesia PT Pabrik Kertas Tjiwi Kimia APP Sinar Mas Group Sidoarjo Indonesia Biomedical Engineering Department Faculty of Inteliigent Electrical and Informatics Technology Institut Teknologi Sepuluh Nopember Surabaya Indonesia

ISBN: (纸本)9781728195674

In a natural disaster, it is often necessary to have an autonomous system capable of moving in an irregular and unpredictable area. This paper proposes a robot that is mechanically capable of moving in a disaster area and equipped with a navigation using behavior-based systems. Its mechanical, electronic and computing systems are described. The development of the primitive behavior that has been made is explained in detail. Several experiments have been carried out to show the performance of the proposed robotic systems. © 2020 IEEE.

关键词： Disasters

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Analysis Quality of Soft Cheese Cottage with Additional of Pineapple Juice (Ananas Comusus (L.) Merr) and Lactobacillus Fabifermentans

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IOP Conference Series: Earth and Environmental Science 2021年第1期709卷

作者： Andi Sukainah Ratnawaty Fadilah Reski Praja Putra Akifah Agricultural Technology Education Study Program Faculty of Engineering Universitas Negeri Makassar Makassar Indonesia Alumni of Agricultural Technology Education Study Program Faculty of Engineering Universitas Negeri Makassar Makassar Indonesia

Soft cheese that has been produced with the addition of three types of coagulant namely pineapple juice, lactic acid bacteria Lactobacillus fabifermentans (Lactobacillus fabifermentans culture in isolation from the results of corn flour fermentation), and a mixture of pineapple juice and Lactobacillus fabifermentans. The best soft cheese obtained from the treatment of a mixture of pineapple juice 40% with lactic acid bacteria Lactobacillus fabifermentans 8%. Furthermore, to improve the quality of soft cheese produced, then add 1% salt. The quality of the resulting cheese includes curd yield 23.17%. water content 68.03%, protein content 8.27%, fat content 5.46%, pH 4.14%, total acid 1.66%. Based on the results of the organoleptic test on the resulting soft cheese obtained the taste, aroma, texture, and color preferred by the panelists.

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Community empowerment through development of biogas installation with fixed dome plant technology in Kenteng Village, Nogosari District, Boyolali Regency

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IOP Conference Series: Earth and Environmental Science 2022年第1期1001卷 012029页

作者： S Emawati W Swastike I N Saputro A I Sari Food Nutrition and Public Health Research and Development Center Sebelas Maret University Indonesia Animal Science Study Program Faculty of Agriculture Sebelas Maret University Indonesia Building Engineering Education Study Program Faculty of Teacher Training and Education Sebelas Maret University Indonesia

Kenteng Village has the potential for beef development due to its high cattle population. However, cow dung waste produced by farmers has not been optimally used, hence its additional benefits have not contributed to the community's economy. This has also led to environmental pollution due to improper waste management. Therefore, empowerment efforts are needed to improve farmers' knowledge and skills in managing livestock manure to increase their income and create environmentally friendly conditions through training activities on the manufacture of organic bio-slurry fertilizer as well as maintenance and construction of biogas installations using fixed dome plant technology. Furthermore, the training was held from August 15-September 26, 2021, in Kenteng Village, Nogosari District, Boyolali Regency. The empowerment program is implemented through Focus Group Discussion (FGD), extension, training, demonstration plots on the production technology of organic fertilizer and biogas for fuel production. Materials used in producing the fertilizer include slurry obtained from biogas waste and agricultural lime/dolomite. The dome plant constructed contains a digester with 6 main parts, namely inlet, reactor, gas reservoir, outlet, gas transport system and compost pits for degassed animal manure/bio-slurry. The training result shows an increase in farmers' knowledge and skills on the application of bio-slurry organic fertilizer production technology and the construction of biogas installations as a fuel producer. There was also an increase in their income, which improved their standard of living. Conclusively, the community in Kenteng Village was more empowered by the existence of a biogas installation development program.

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The development of environmental knowledge and the use of solar energy using environmental responsibility behavior in Central Java

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IOP Conference Series: Materials Science and engineering 2021年第4期1098卷

作者： H Hamiyati M Subekti I A Rahardjo Family Welfare Education Study Program Faculty of Engineering Universitas Negeri Jakarta Jakarta Indonesia Electrical Engineering Education Program Faculty of Engineering Universitas Negeri Jakarta Jakarta Indonesia

Energy has an essential meaning in life to continue to develop and support economic and environmental activities. Every year energy in Indonesia increases rapidly in line with human growth. To supply energy needs, renewable energy sources must be developed. Renewable energy potentials such as solar energy have never been used on a large scale even though Indonesia has enormous energy potential. Solar energy can be used in the form of solar cells for electricity generation. The utilization of solar cells can help people who live in remote areas far from the electricity network. This research was conducted in Central Java by using descriptive qualitative methods and using research and development (R&D) methods. The technique used is an expressive qualitative analysis technique. The result solution implemented is to meet the increasing electrical energy needs of the community. This research produces renewable energy that can be used as a solution to solving the electrical energy crisis at an affordable cost and can increase the independence of the community so that it does not depend on government electricity supply and improve environmental responsibility behavior.

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Hypothetical scenarios for circular bioeconomy preferences in the Bali metropolitan area

Waste Management Bulletin

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Waste Management Bulletin 2025年第3期3卷

作者： Koko Suryawan, I Wayan Suhardono, Sapta Rahman, Ari Thuy Phan, Thi Thanh Lee, Chun-Hung Department of Environmental Engineering Faculty of Infrastructure Planning Universitas Pertamina Jalan Sinabung II Terusan Simprug Jakarta 12220 Indonesia Department of Natural Resources and Environmental Studies College of Environmental Studies and Oceanography National Dong Hwa University Hualien 97401 Taiwan Center for Environmental Solution (CVISION) Universitas Pertamina Jalan Sinabung II Terusan Simprug Jakarta 12220 Indonesia Center for Interdisciplinary Research on Ecology and Sustainability College of Environmental Studies and Oceanography National Dong Hwa University Hualien 97401 Taiwan Environmental Sciences Study Program Faculty of Mathematics and Natural Sciences Universitas Sebelas Maret Surakarta 57126 Indonesia Faculty of Natural Resources & Environment Dong Nai Campus Vietnam National University of Forestry Dong Nai Bien Hoa 810000 Viet Nam

This study investigates the preferences and willingness of residents, including local and foreign residents, in the Bali metropolitan area to participate in various waste management initiatives aimed at promoting a circular bioeconomy. Bali, a major tourist center in the Global South, presents unique challenges and opportunities for sustainable waste management. Using a choice experiment framework, we explored preferences for managing paper, food, and garden waste through different scenarios. Scenario 1 focused on collecting and separating waste to support existing infrastructure, Scenario 2 emphasized source reduction and participation, and Scenario 3 integrated a comprehensive circular economy approach. The study reveals significant support for comprehensive waste management practices, with high marginal willingness to participate values for initiatives such as collecting and processing paper waste for energy conversion, independent composting of food waste, and community-based composting of garden waste. These findings highlight the importance of community engagement and tailored strategies in developing sustainable waste management programs. The results provide valuable insights for policymakers and stakeholders to design effective circular bioeconomy policies that enhance local economic self-sufficiency and contribute to sustainable development goals. © 2025 The Authors

关键词： Circular bioeconomy Community engagement Environmental sustainability Waste management Waste-to-value initiatives

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