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The disaster resolving on tourism settlements in small islands

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

作者： S Wunas Regional and City Development Engineering Study Program Faculty of Engineering Hasanuddin University Indonesia

The increasing number of tourists visiting small islands has directly affected the development of low-income settlements spontaneously to support the tourists' accommodation, but the development itself has, at the same time, ignored the humanistic environment. Several of cities in Indonesia belong to the high-risk index of disasters, including Samalona Island of Makassar City. Therefore, the planning components to resolving disasters on tourism settlements in small islands are needed as follows: 1) identifying the role of elements in the natural mitigation and in the artificially structural mitigation that is available, and the role of local residents to overcome disasters in the coastline of small islands, 2) analyzing the condition of abrasion disasters like storms, gale, and flood tides towards the houses, gazebos, and stalls in small islands. In order to achieve the purpose, the collected data come from the observations, sketches, and direct interviews with the local people owning the houses, gazebos, or stalls. The analysis with sustainable approaches is to reach the development of small island destinations that are safe, comfortable, environmentally friendly, and able to increase the incomes of the local residents. The results of the research describe several mitigation elements in small islands such as the local vegetation with tree trunk diameter is 1.5-2.0m and the branching system covers 80% of the island area. The coastal areas have no more natural mitigation elements to block gales, wave pressures, and tides. However, the roles of society can be seen in the existence of structural mitigation elements such as locally wooden breakest water conventionally made. The condition of abrasion disasters and gales can be found by the changes of beach sand shape not parallel with the seasons, the site of houses, gazebos, and stalls that are always moved in safe locations temporarily. The planning components to resolving disasters in tourism settlements of small isla

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Performance analysis of ocean water power plant as a renewable power plant for leading regions, outermost areas, underdeveloped region

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Journal of Physics: Conference Series 2019年第3期1402卷

作者： M Subekti Electrical Engineering Study Program Engineering Faculty State University of Jakarta Jakarta Indonesia

This research for performance analysis of ocean water power plant to get design optimization based on research scenarios. The method used is experiment, by conducting a prototype analysis of the initial calculations to be included in the modeling simulation. through research scenarios to get the most optimal prototype performance. The results showed that (1) the greater the pontoon volume used, the greater the pontoon force produced, the pontoon force was not affected by the size of the pump diameter. (2) the larger the diameter of the pump used, the greater the discharge of water produced, the water discharge is not affected by the small volume of the pontoon, (3) the magnitude of the lift system to seawater is not affected by the size of the pump diameter but the size of the pontoon volume, the greater the pontoon volume used, the greater the lift power, (4) the greater the pontoon volume used, the turbine power The result will be even greater with the diameter of the pump, the larger the diameter of the pump used, the greater the turbine power produced. From the results of the study, it can be concluded that the optimal size uses 6 pontoons and 12-inch pump diameters. The implications of this research are that in addition to increasing the value of electrification in Leading Regions, Outermost Areas, Underdeveloped Region, it can also improve the economy of the community while helping the government to succeed the National Medium Term Development Plan

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The effect of sea water soak on asphalt porous characteristics with and without waste of rubber tire waste as an asphalt addictive

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IOP Conference Series: Materials Science and engineering 2019年第1期669卷

作者： O S T Mawarni M Fauziah Civil Engineering Study Program Faculty of Civil Engineering and Planning Universitas Islam Indonesia

The use of rubber tire scraded in the developement of porous asphalt technology as a part of flexible pavement aims to minimize the adverse effects of transportation facilities. The use of rubber tire scraded as an asphalt modifier in the pavement can provide several benefits, including reducing reflective cracking on overlays, reducing maintenance cost, increaseing resistance to new pavement cracking and rutting, increasing skid resistance an pavement age. This paper presents laboratory investigation on the effect of seawater immersion on porous asphalt performance using rubber tire scraded. Method use in laboratory investigation is based on AAPA 2004 and Bina Marga 2010. The results showed the permeability all types of mixture indicator 'moderate drainage'. The results of testing the Marshall characteristics showed a decrease in the value of stability, flow, and MQ in the porous asphalt mixture with Pen 60/70 asphalt and rubber asphalt as the duration of sea water immersion increased. The porous asphalt mixture using Pen 60/70 asphalt and rubber asphalt has Index of Retained Strength values which tend to decrease with increasing sea water immersion duration. Indirect Tensile Stength test results due to seawater submersion indicate a decrease in ITS value in porous asphalt mixtures with Pen 60/70 asphalt and rubber asphalt. The Cantabro test results showed an increase along with the increasing duration of seawater immersion.

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Students' Competences in Practicums of Various Competencies in Machining engineering

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Journal of Physics: Conference Series 2019年第1期1273卷

作者： Dhany Ardhian Syah Apri Nuryanto Electrical Engineering education Study Program Faculty of Engineering Yogyakarta State University Indonesia

This study aimed at investigating productive practicums of various competencies and the competences of Machining engineering department students of Muhammadiyah 1 Bantul Vocational High School. It is a descriptive study which employed both quantitative and qualitative research designs. The practicums of various competencies consisted of seven stages led by two teachers. Those stages are opening, presenting the introductory theory, demonstrating, conducting productive practicums of various competencies, evaluating, giving feedback, and closing. Based on the data analysis, the percentage of students' response is 70%, and it is categorized as good. The average score of the students' competences is 81.67, and it is also categorized as good. Finally, the percentage of students' activity aspect is 90%, and it is also categorized as very good.

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Environmental assessment of a small power plant based on palm kernel shell gasification

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AIP Conference Proceedings 2020年第1期2296卷

作者： Muhammad Akvis Fauzi Prabang Setyono Sunu Herwi Pranolo 1Magister Study Program of Environmental Science Postgraduate Universitas Sebelas Maret Jl. Ir. Sutami 36A Surakarta 57126 Indonesia 2Magister Study Program of Chemical Engineering Faculty of Engineering Universitas Sebelas Maret Jl. Ir. Sutami 36A Surakarta 57126 Indonesia

A small power plant based on biomass gasification technology is attractive to provide electricity to many remote areas without fossil fuel access because biomass is locally available and contributes to net-zero carbon emissions in the terms of a greenhouse gas component. Palm kernel shell is a potential biomass in Indonesia to provide energy needs. It is available in scattered areas that are economical for a small-scale power plant operation up to 200 kW. The gasification technology converts the shell into combustible gases, which are also known as producer gases with carbon monoxide and hydrogen as the main components for fuelling a gas generator set resulting in carbon dioxide and water in the flue gas. Although palm kernel shell considered carbon-neutral, a power plant based on biomass gasification also emits CO2 indirectly as a result of the fossil fuel combustion during shell generation in a palm oil mill, handling and transportation from the mill to the power plant. A power plant based on the palm kernel shell gasification system produces greenhouse gases and solid residue as char and tarry components in the producer gas. This assessment examined the global warming potential level of a 5-kW power plant based on palm kernel gasification technology using a Gate-to-Gate approach to develop system improvement scenarios. All carbon dioxide emissions were predicted with an openLCA database of Environmental Footprint (MID-point indicator). The mass and energy balance calculations resulted in the amount of generated char. A laboratory experiment was conducted to observe tar content in the producer gas. It was found that the power plant emits 1.69 kg CO2 eq/kWh, produces 0.33 kg char/kWh and the producer gas contains 2.70 × 10−4 kg tar/kWh. It is recommended that when using palm kernel gasification for electricity generation, plant managers should consider char as a solid conditioner in a palm plantation area and implement a tar removal system to minimize gas genset fa

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El Niño driven haze over the Southern Malaysian Peninsula and Borneo

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Science of the Total Environment 2020年 730卷 139091-139091页

作者： Khan, Md Firoz Hamid, Ahmad Hazuwan Rahim, Haasyimah Ab Maulud, Khairul Nizam Abdul Latif, Mohd Talib Nadzir, Mohd Shahrul Mohd Sahani, Mazrura Qin, Kai Kumar, Prashant Varkkey, Helena Faruque, Mohammad Rashed Iqbal Guan, Ng Chee Ahmadi, Seyedeh Parisa Yusoff, Sumiani Department of Chemistry Faculty of Science University of Malaya Kuala Lumpur50603 Malaysia School of Environment Science and Spatial Informatics China University of Mining and Technology Xuzhou China Institute of Climate Change Universiti Kebangsaan Malaysia BangiSelangor43600 Malaysia Department of Civil Engineering Faculty of Engineering and Built Environment Universiti Kebangsaan Malaysia BangiSelangor43600 Malaysia Department of Earth Sciences and Environment Faculty of Science and Technology Universiti Kebangsaan Malaysia BangiSelangor43600 Malaysia Environmental Health and Industrial Safety Program School of Health and Applied Sciences Faculty of Health Sciences Universiti Kebangsaan Malaysia Kuala LumpurJalan Raja Muda Abdul Aziz50586 Malaysia University of Surrey GuildfordGU2 7XH United Kingdom Department of International and Strategic Studies Faculty of Arts and Social Sciences University of Malaya Kuala Lumpur50603 Malaysia Universiti Kebangsaan Malaysia 43600 UKM BangiSelangor Malaysia University of Malaya Kuala Lumpur50603 Malaysia

The Southeast Asian (SEA) region is no stranger to forest fires - the region has been suffering from severe air pollution (known locally as ‘haze’) as a result of these fires, for decades. The fires in SEA region are caused by a combination of natural (the El Niño weather pattern) and manmade (slash-and-burn and land clearing for plantations) factors. These fires cause the emissions of toxic aerosols and pollutants that can affect millions of people in the region. Thus, this study aims to identify the impact of the SEA haze on the Southern region of the Malaysian Peninsula and Borneo region of East Malaysia using the entire air quality observation data at surface level in 2015. Overall, the concentration of PM10 was about two-fold higher during the haze period compared to non-haze period. The concentrations of CO, flux of CO and flux of BC were aligned with PM10 during the entire observation period. The wind field and cluster of trajectory indicated that the Southern Malaysian Peninsula and Borneo were influenced mainly from the wildfires and the combustion of peat soil in the Indonesian Borneo. This study finds that wildfires from Borneo impacted the Southern Malaysian Borneo more seriously than that from Sumatra region. © 2020 Elsevier B.V.

关键词： Fires

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Student cognitive level achievement in the textile chemistry lesson conducted in a blended learning environment

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AIP Conference Proceedings 2021年第1期2331卷

作者： Dewi Suliyanthini Fajar Yulianur Eneng Lutfia Zahra Vivi Radiona Harsuyanti Lubis 1Apparel Design Study Program Faculty of Engineering Universitas Negeri Jakarta Jl. Rawamangun Muka Jakarta Timur 13220 DKI Jakarta Indonesia 2Bina Nusantara University Jl. Pasir Kaliki No.25-27 Bandung Jawa Barat 40181 Indonesia

This study was to identify students’ cognitive level achievement after participating in the Textile Chemistry lesson conducted in a blended learning environment. This study was carried out with a one-group posttest-only design involving 54 undergraduate students of Apparel Design study program Universitas Negeri Jakarta. During the teaching- learning process, the studied group was engaged in teaching-learning activities conducted with various online learning platforms, including LMS Moddle, Youtube, Zoom, and Whatsapp Messenger. At the end of the lesson, the students composed post-experimental reports which were then scored and analysed. The result of this study revealed that in a blended learning environment, 13% students only achieved C3 (applying) with an average score of 71.37, 55.5% students only achieved C4 (analyzing) with an average score of 82.7, and only 31.5% students successfully achieved C5 (synthesizing) with an average score of 88.7.

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Content design: e-learning module for study on cultural tourism information systems based on local wisdom

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Journal of Physics: Conference Series 2020年第1期1516卷

作者： I M Pageh A A J Permana Historical Education Faculty of Law and Social Sciences Ganesha University of Education Singaraja Indonesia Information Technology Department Informatics Management Study Program Faculty of Engineering and Vocational Ganesha University of Education Singaraja Indonesia

Facing the 4.0 industrial revolution, it is necessary to carry out reforms and innovations related to national education. Reforms and innovations in the implementation of components of the education system involve changes in curriculum, graduate competencies and assessments, teacher qualifications, funding, facilities and infrastructure, decentralization and educational autonomy. Bali as a world tourist destination must be maintained and passed on to the younger generation. The younger generation can use information technology to help promote Balinese culture. Bali has a lot of local wisdom that can be implemented in the tourism sector. Therefore to promote those local wisdoms, a module that can be accessed through e-learning is developed to help students develop a cultural tourism package based on local wisdom to be promoted online. The modules developed have been tested by content and media experts, which can be used independently by students. Modules can be accessed online at e-learning and they are ready to use instructions for students so they can work on assignments and projects independently. Modules containing this theory and practice are for making brochures, tour packages, videos, and websites, all of which are connected to promote tourism based on local Balinese wisdom.

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Hydroxyapatite-gelatin-HPMC composite as injectable bone substitute with alendronate variation for osteoporotic bone

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AIP Conference Proceedings 2020年第1期2314卷

作者： Novita Sari Alfian Pramudita Putra Siswanto Muhammad Fajar Faliasthiunus Pradipta Dyah Hikmawati 1Department of Physics Faculty of Science and Technology Universitas Airlangga Surabaya Indonesia 2Biomedical Engineering Study Program Department of Physics Faculty of Science and Technology Universitas Airlangga Surabaya Indonesia

The treatment of bone with osteoporosis could be done by filling the bone defect with Injectable Bone Substitute (IBS). IBS could be functioned as drug delivery system by associating a drug inside the IBS, such as alendronate for osteoporosis case. In this study, IBS has been synthesized and characterized with the alendronate variations. The IBS was synthesized by stirring hydroxyapatite and gelatin 5% (w/v) with a ratio of 45:55. The alendronate was added to the solution with composition of 0%, 5%, 10%, 15% and 20%. The mixture was mixed with 2% (w/v) HPMC. FTIR test results indicated the formation of hydroxyapatite-gelatin bonding (Ca2+--COO−) at wavenumber of 1560.54 cm−1. The acidity test result indicated that the sample had a pH of 7 and was able to remain stable. The IBS could be set in 3 hours and 38 minutes when injected to HA substrate and capable of enveloping the surface of HA substrate. The pore size of the substrate decreased from range of 153 to 625.8 µm into 247.4 to 480.8 µm. The XRD test results indicated that degree of crystallinity decreased from 76.81% to 75.13%. The best alendronate composition in IBS was 10% compared to the mass of hydroxyapatite.

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The nature of ultramafic rocks from Sulawesi, Indonesia and their suitability for CO2 sequestration

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IOP Conference Series: Earth and Environmental Science 2020年第1期589卷

作者： Sufriadin S Widodo M Thamrin A Maulana A Ito T Otake Department of Mining Engineering Faculty of Engineering Hasanuddin University Jl. Poros Malino KM.6 Gowa 92171 South Sulawesi Indonesia Department of Geological Engineering Faculty of Engineering Hasanuddin University Jl. Poros Malino KM.6 Gowa 92171 South Sulawesi Indonesia Environmental Geology Laboratory Division of Sustainable Resources Graduate Study of Engineering Hokkaido University Sapporo 060-8628 Japan

Petrological and geochemical characterization of some ultramafic rock samples from Sulawesi has been conducted with the aim at deciphering physico-chemical properties in relation to their potential use as carbon dioxide storage. Mineralogical analysis was performed by means of optical microscopy and whole rock chemical compositions of the samples were determined by X-ray fluorescence (XRF) spectrometry. Results of analyses show that lizardite is predominant serpentine mineral present, followed by chrysotile and trace amount of magnetite. Remnants of olivine and pyroxene were detected in some samples but they have been pseudomorphically replaced by serpentine. Serpentinization of Sulawesi ultramafic rocks has led to transformation of olivine and lesser pyroxene become secondary phases mainly lizardite and minor chrysotile. This process also has changed the properties of rocks such as reduction in grain size and decreasing in density. Relatively higher MgO concentration combined with fine grained and porous rocks indicate that some Sulawesi ultramafic rocks are good candidate as the host for mineral carbonation. Fosteritic olivine and serpentine (lizardite) are the most soluble Mg-rich minerals in acid. Carbonation may occurs where Mg2+ readily reacts with CO2 forming thermodynamicly stable magnesite (MgCO3)

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