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The potential utilization of natural materials as a wall covering of the building in heat reduction

IOP Conference Series: Materials Science and engineering 2019年第1期523卷

作者： K Jeumpa Doctoral Study Program of Technology and Vocational Education Faculty of Engineering Padang State University Indonesia

This paper aims to examine the potential of natural coco fibre to be utilized as a wall covering in building construction for sun radiation protection. engineering innovation in building construction to control the building's temperature is important. Lowering the building's room temperature can be carried out by modifying the wall construction materials. Thus, the usage of an air conditioner which is not environmentally friendly can be reduced. The wall modification can give more protection and dampen the sun's heat, hence the thermal comfort can be obtained. Natural materials, moreover, can be used in the wall modification to reduce the room temperature. In this study, a comparative analysis was carried out between two materials: (1) the coco fibre coated with cement mixture; (2) the mixture of cement and sand, both were used as materials to plaster the wall. The cement mixture acted to bind the compacted coco fibre sheets. The material was evaluated after the cement mixture had been hardened. The test was carried out by providing heat on one side and measuring the temperature on the other side of the material. The results were significant between the two materials. This indicates the potential of coco fibre as a heat insulation in the wall construction materials that can minimize solar thermal radiation into the room.

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Effect of high rise building against transportation in campus area

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Journal of Physics: Conference Series 2019年第1期1375卷

作者： Djoeffan, S H Burhanidin, H Weishaguna, W Regional and City Planning Study Program Faculty of Engineering Universitas Islam Bandung Bandung Indonesia

Jatinangor is located on the main regional road Bandung – Sumedang. The area which started as a rural area has been transformed to education function. The rapid growth in the region has implications for changes in land use, population increase and various socio-economic activities and most importantly has attracted various investors to conduct high rise building development to accommodate students who are educating in the education area. The emergence of various activities has resulted in increased generation and traffic volume that can cause congestion, increasing fuel consumption, reduced comfort, accidents and air, soil and water pollution which endanger human health in general, animals and plants. Data retrieval using Traffic Counting Method (TC) to identify traffic volumes which is then analyzed by measuring the level of road service based on the calculation by comparing road capacity and traffic volume. The purpose of this study is to find out the level of service road and propose alternative solutions to transportation problems on the Jatinangor highway.

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Perception of the community on the use of biogas as alternative energy (Case study: Jetak Village, Getasan sub district)

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IOP Conference Series: Earth and Environmental Science 2020年第1期481卷

作者： A Putri Purwanto H Purnaweni Study Program of Environmental Science School of Postgraduate Studies Diponegoro University Semarang Indonesia Faculty of Mathematics and Natural Sciences Semarang State University Semarang Indonesia Faculty of Chemical Engineering Diponegoro University Semarang Indonesia Faculty of Social Science and Political Science Diponegoro University Semarang Indonesia

The purpose of this research is to know public perception of biogas users in Jetak Village, Semarang Regency viewed from technological aspect, technical (biogas installation), biogas benefit, economy and environment. The method used qualitative descriptive with qualitative descriptive approach. The technique of determining key informants was done by purposive sampling. Data were obtained from cattle ranchers who lived in the study sites through interviews, observation and documentation. The result of this research is overall the perception about biogas energy get a positive response from user society. However, there are some things that should be considered for the government and others in providing assistance that is necessary to consider the evaluation and monitoring periodically so that the constraints experienced by the user community can be known early and can be found right solutions. In addition, the sustainability of the use of biogas energy can be done from generation to generation not just the aid which in the end becomes only useless materials.

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An Effort to Increase the Potential of Virgin Coconut Oil with Pendawa Technique

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IOP Conference Series: Materials Science and engineering 2019年第1期598卷

作者： E F Sapatra I Yuniarti R A S Imamsyah Industrial Chemical Engineering Technology Study Program Faculty of Vocational School Diponegoro University Indonesia

In order to overcome the disadvantages of conventional method, innovations on how to produce coconut oil were applied with the technique of PENDAWA (Pendayagunaan Asam Jawa). Coconut oil comes from coconut milk which is the substance between oil and water (emulsion). So to get coconut oil, acid is needed as an emulgator to break down emulsifying substances. In this case, Tamarind is used because it is cheap, available, contains a lot of antioxidants, and is efficacious. Coconut oil contains medium chain saturated fatty acids, namely MCT (Medium-chain triglycerides) where MCT provides extraordinary health enhancing properties. We compared three types of coconut oil, namely coconut oil in the traditional way, coconut oil with the addition of tamarind, and packaging oil on the market. The result was coconut oil with the Pendawa method very good in quality and quality with FFA 0.0067% and peroxide number of 1.5 mg ek/kg. In conclusion, this oil production with the PENDAWA method is very effective, efficient, high in quality, and provides high profit for the industry that wants to produce it.

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Analysis of tsunami hazard in the Southern Coast of West Java Province - Indonesia

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IOP Conference Series: Earth and Environmental Science 2020年第1期618卷

作者： W Windupranata N R Hanifa C A D S Nusantara G Aristawati M R Arifianto Research Group of Coastal Ocean and Maritime Engineering Faculty of Earth Sciences and Technology Institut Teknologi Bandung – Indonesia Research Laboratory of Hydrography Faculty of Earth Sciences and Technology Institut Teknologi Bandung Centre for Earthquake Science and Technology Research Centre for Disaster Mitigation Institut Teknologi Bandung Study Program of Geodesy and Geomatics Engineering Faculty of Earth Sciences and Technology Institut Teknologi Bandung

The Southern Coast of West Java Province in the Java Islands is one of prone and exposed area to tsunami hazard. It has about 428 kilometers coastline length, covering 5 administrational regencies (i.e. Sukabumi, Cianjur, Garut, Tasikmalaya, and Pangandaran). It is a strategic area that support many economic activities including tourism, fisheries, electricity power plants, agricultures, markets as well as social factors such as coastal villages, schools and other public facilities. The existence of this strategic area is threatened by the potential for a tsunami disaster mainly from megathrust along the Southern Coast of Java Island. On 2006, a tsunami earthquake of M7.7 occurred off Pangandaran Regency with tsunami height of 5-8 meters and inundated about 500 meters along southern coast of West and Central Java Province. The tsunami caused more than 600 casualties and damage to buildings, public facilities and insfrastructure. Yet, the Indonesia National Earthquake Source and Hazard Map suggest a bigger threat of a plausible M8.7 – M9.2 megathrust earthquake off Java island. This research aims to analyze and map potential areas affected by the tsunami in the South Coast of West Java Province based on numerical modelling carried out with Cornell Multi-grid Coupled Tsunami Model (COMCOT) v1.7 based on the several megathrust earthquake scenarios in southern off West Java. The results of tsunami modelling show that the highest impact is generated in the Sunda Straits & West Java - Central Java Megathrust Scenarios with highest tsunami inundation and the fastest travel time occurred in Cianjur Regency with 26,7 meters height and estimated arrival time of tsunami wave approximately 10 minutes after the mainshock, while the farthest inundation distance is estimated in Sukabumi Regency about 5.8 kilometers from the coast due to existence of river.

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Evaluation of communal wastewater treatment plant based on technical, institutional, and community participation aspects in South Surabaya

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IOP Conference Series: Earth and Environmental Science 2019年第1期259卷

作者： E Purnawanti N I Oktavitri D R M Isnadina N Fitriani Environmental Engineering Study Program Department of Biology Faculty of Science and Technology Universitas Airlangga Indonesia

This study aims to discover the obstacles and provide recommendations on the technical and institutional aspects of the chosen communal WWTP. The methods used in this study were field survey and questionnaire. the data were analyzed using quantitative, qualitative, and SWOT analysis. There are 11 out of 13 communal WWTPs that do not work optimally. The technical obstacle encountered in the operation of the chosen communal WWTPs is the huge building capacity that does not meet the criteria of HRT design. The recommendations for the technical problem include lowering the water level and reducing the number of baffles in communal WWTP. The obstacle faced in the operation of chosen communal WWTPs in terms of institutional and community participation aspects is that the maintenance is only known by few people. The recommendation for the aspects of institutional and community participation is for KPP to arrange a socialization on the maintenance of communal WWTP based on its maintenance module.

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Waste management for achieving sustainable management of water and sanitation in Universitas Sebelas Maret Indonesia 4

Waste management for achieving sustainable management of wat...

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4th International Workshop on UI GreenMetric World University Rankings, IWGM 2018

作者： Karsidi, Ravik Parama Astirin, Okid Astuti, Winny Rector Universitas Sebelas Maret Campus UNS Kentingan Surakarta Indonesia Department of Biology Faculty of Mathematics and Natural Science UNS Green Campus Team Universitas Sebelas Maret Indonesia Study Program of Urban and Regional Planning Faculty of Engineering UNS Green Campus Team Universitas Sebelas Maret Indonesia

Universitas Sebelas Maret (UNS) is the biggest university in Surakarta Central Java Indonesia, which was established on March 11th, 1976 through Presidential Decree No. 10 of 1976. Commitmen of UNS toward Green Campus began in 2012 by Rector Decree 7nd of August 2012. Land size of UNS, whis is only 60 ha becomes constraints in development of Green Campus Initiatives. In 2030 agenda of Sustainable Development Goals gives attention to huge increased of urbanization thus cities and human settlements face the problems of high density, economies of agglomeration link economy, energy, environment, science, technology and social and economic output [2]. The Problem of Water and Sanitation becomes big issues of Sustainable Development Goals (SDGs), which is stated in the Goal 6 out of 17 Goals. Goal 6 not only addresses Clean water sanitation and health but also quality and sustainability of water resources all over the world. Universitas Sebelas Maret is one of Campus in Indonesia, which has awareness toward water and sanitation, especially related to the problem of waste. Liquid waste has become problems for a long time in UNS, when domestic liquid waste has come from residential areas surrounding campus passed through the lake in campus before finally flowing to Bengawan Solo River. This causes euthropication and sedimentation of the lake of UNS, which had impact on extremelly decreased the function of the pond estetically and functionally. By partnership with the Ministry of Public Works anad Spatial Planning in 2017, UNS has built Integrated Waste Water Treatment, which treats domestic liquid waste from residential area surrounding campus and internal campus becomes recycled clean water. In spite of that, UNS also treats organic waste of fall leafs through composting units and manages chemical hazardous waste according to the Indonesian regulation issued by Ministry of Environment. Several efforts of UNS related to Waste Management have contribution to achieving SDGs e

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An econometric analysis of energy input in the agricultural sector and its impact on co2 emissions: a case of Indonesia

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IOP Conference Series: Materials Science and engineering 2019年第1期508卷

作者： Charles O.P. Marpaung Electrical Engineering Study Program Faculty of Engineering Universitas Kristen Indonesia Jalan Mayjen Sutoyo No. 2 Jakarta Indonesia

This study analyzes the impact of the energy input on the total production in the agricultural sector in Indonesia by using an econometric approach. Unlike in other studies, the total production in this study was measured in monetary unit (i.e., value added). The results show that if the energy input in the agricultural sector was increased by 1%, the agricultural productivity (the value added) would increase by 0.45%. This study also examines the factors which affect the total CO2 emissions due to the energy use in the sector by applying the extended Kaya model during 1990-2005. The results show that the value added was found to increase the total CO2 emissions during the periods of 1990-1995, 1996-2000, and 2001-2005. The energy intensity effect also contributed towards increasing CO2 emissions at each period except at the period of 2001 – 2005, while the contribution of the energy mix effect to the total CO2 emissions was neglible at all periods.

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Perceptions and adaptation strategies of the community against flood risk at the estuary riverbank of Bone River, Gorontalo Province

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IOP Conference Series: Earth and Environmental Science 2019年第1期235卷

作者： S Maryati S Eraku M Kasim Geography Education Study Program Department of Earth Science and Engineering Faculty of Mathematics and Natural Sciences Universitas Negeri Gorontalo 96128 Indonesia Engineering Geology Study Program Department of Earth Science and Engineering Faculty of Mathematics and Natural Sciences Universitas Negeri Gorontalo 96128 Indonesia

Indonesia is a country prone to natural disasters that are influenced by natural factors and human factors. Natural disasters that commonly occur in Indonesia are floods, sea tides, landslides, earthquakes, volcanic eruptions, hurricanes, and drought. Among these disasters, floods are the most frequent natural disasters in various parts of Indonesia. During 2015 there was 1732 incidence of disasters in Indonesia, 92.67% of the disasters are landslides, tornado, and flood (Indonesian National Disaster Management Agency – BNPB, (2016). Refer to BNPB (2018), during 2017, 979 incidences of flood disaster occurred in Indonesia where 2.518.578 people were affected by the flood disaster. Considering that flood is a common disaster in Indonesia, people should have flood preparedness. This research was conducted at the estuary of Bone River Gorontalo Province. The Bone River is one of the longest rivers in Gorontalo Province that cross Bone Bolango Regency and Gorontalo City. There are many communities are living in river estuaries that belong to densely populated areas, so this research is very important to understand perception and adaptation strategy of society to flood disaster. This research was conducted by distributing questionnaires to the community and analyzed quantitatively. The results show that most respondents know that they live in flood-prone areas, floods can cause various impacts, and floods can be prevented and minimized. The research result is expected to be useful in the decision-making process for decreasing flood disaster risk at the estuary of Bone River Gorontalo Province.

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The study of Area Infiltration Rate by Using Biopori Holes as an Effort to Reduce Water Level and Groundwater Conservation

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IOP Conference Series: Materials Science and engineering 2019年第1期506卷

作者： Yulia Effendi Nurzal Civil Engineering Faculty of Engineering Muhammadiyah University 23245 Banda Aceh Indonesia Architecture Architecture Study Program Faculty of Engineering Muhammadiyah University 23245 Banda Aceh Aceh Indonesia

The expansion of land development for settlement and other infrastructure has impact for lessen of green open space that serves to absorb rainwater. Accordingly to that, there is a need of effort to increase the absorbtion rate of rainwater into the ground; one of the methods is using biopori holes. The area that uses as a sample to observe the infiltration rate using biopori holes is Kopelma Darussalam, Banda Aceh. The aim of this study is to measure the infiltration rate before and after the application of biopori holes, find out the amount of holes that required, discover the differences of ground water level every 2, 5, and 10 years return period and find out the amount of water that absorbed to ground water. The data which uses to calculate the water level is the annual maximum daily rainfall, land area under forest cover and texture, and infiltration rate. Meanwhile, the data which uses in order to calculate the volume of water infiltrated into the soil in each month is monthly rainfall data, land area which classified by the cover and texture and infiltration rate. Inundation height at annual maximum rainfalll plan for 2, 5, and 10 years return period with using 100, 160 and 400 holes for each 100 m2 is lower from 9.01% to 77.43% compared to not using biopori holes. In addition, the amount of water that infiltrated after using biopori holes is increasing up to 4120 m3 for each month.

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