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<![CDATA[Water Quality and Performance Assessment of Porous Asphalt Mix Modified Using Charcoal Powder ]]>
<![CDATA[Kavya Mariya Thomas]]>;
<![CDATA[Noel Varghese Mathew]]>;
<![CDATA[Rajalekshmi P R]]>;
<![CDATA[Rajalekshmi Suresh Kumar]]>;
<![CDATA[Reebu Zachariah Koshy]]>
<![CDATA[ Journal of Sustainable Engineering: Proceedings Series Vol 1 No 2 (2019) ]]>
Publisher : <![CDATA[Fakultas Teknik Universitas Sam Ratulangi ]]>
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DOI: 10.35793/joseps.v1i2.17
<![CDATA[Porous pavements are used to allow infiltration of water for increasing ground water storage. Bio char (Charcoal) is a low cost adsorbent used for the removal of heavy metals and other contaminants. This project examines the possibility of using bio char in porous asphalt mixes and efficiency of the asphalt layer modified with charcoal in removing contaminants from typical storm water. Bio char is added by partial replacement of fine aggregates of size less than 2.36 mm. Preliminary Marshall tests indicated that bio char content of about 1to 2 % is not seriously affecting the properties of porous asphalt mix. Marshall test without charcoal has given the optimum binder content as 5 %. Therefore for the study, samples for Marshall tests were prepared keeping the optimum binder content as 5 % and varying the charcoal content as 1, 1.5 & 2 %. From the drain down, air void, flow and stability requirement it was seen that 1.5 % of charcoal is the optimum. Subsequently for the water quality analysis of water infiltrating through the porous asphalt layer samples are prepared using 1.5 % charcoal. Typical storm water is prepared by adding nitrate & chromium to deionized water. Water quality analysis revealed that charcoal modified asphalt layer can remove 97.2 % nitrate, 56 % of chromium from the storm water, and improve the quality of ground water.]]>
<![CDATA[Design System Energy Sustainable Using Wind Turbine For Public Fish Cages Lightning at Belang Village in Southeast Minahasa ]]>
<![CDATA[Verna Y.P. Bokau]]>;
<![CDATA[Kristian Dame]]>;
<![CDATA[Victory Polly]]>;
<![CDATA[Steven Pandelaki]]>
<![CDATA[ Journal of Sustainable Engineering: Proceedings Series Vol 1 No 2 (2019) ]]>
Publisher : <![CDATA[Fakultas Teknik Universitas Sam Ratulangi ]]>
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DOI: 10.35793/joseps.v1i2.18
<![CDATA[These paper present the designing system of wind turbine for public fish cages lighting at Belang Village in Southeast Minahasa. Belang is one of popular destination to find a fresh fish in north sulawesi, but the problem is the efficiency of electricity is not sufficient for the fish farmer. Propeller helps in the motor to generating electricity. Comprehensive research studies are carried out in order to measure the lighting resistances. The generated data from wind turbine can be seen using LCD 2x16 which connected with microcontroller Arduino Uno. Finally, conclusions are fully drawn.]]>
<![CDATA[Identifying Students' Pre-Classroom Behaviors in a Flipped Learning Environment ]]>
<![CDATA[Daniel Febrian Sengkey]]>;
<![CDATA[Sary Diane Ekawati Paturusi]]>;
<![CDATA[Alwin M. Sambul]]>
<![CDATA[ Journal of Sustainable Engineering: Proceedings Series Vol 1 No 2 (2019) ]]>
Publisher : <![CDATA[Fakultas Teknik Universitas Sam Ratulangi ]]>
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DOI: 10.35793/joseps.v1i2.19
<![CDATA[Advancements in Information Technology have lead the world to new ways of life including in the education field. Nowadays we have various types of computer and Internet-assisted learning. With the booming of blended learning, here comes the flipped classroom environment, where students are expected to learn even before the conventional class meetings started. In this study, we address the question of how students behave toward various learning materials packaged in 3 types of media: text and images, slide shows with audio narration, and slide shows with the appearance of the lecturer. Based on our samples the findings are surprising: some students never made access before the class; and on the other hand, the text-and-image-based learning materials have the highest number of pre-classroom access.]]>
<![CDATA[Digital Image Processing Application on Shallots Quality Determination ]]>
<![CDATA[Jane I. Litouw]]>;
<![CDATA[Feisy D. Kambey]]>;
<![CDATA[Pinrolinvic D.K. Manembu]]>
<![CDATA[ Journal of Sustainable Engineering: Proceedings Series Vol 1 No 2 (2019) ]]>
Publisher : <![CDATA[Fakultas Teknik Universitas Sam Ratulangi ]]>
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DOI: 10.35793/joseps.v1i2.21
<![CDATA[Shallot is a horticultural vegetable commodity that has high economic value. North Sulawesi is one of the central production of shallots which has several onion varieties developed and marketed. Technology that can help determine the quality of shallots is needed to simplify the marketing process. This study aims to simulate a system for determining the quality of shallots based on their color and size. The shallot bulb image of several different varieties is input for this system to be able to provide good and bad shallot marks.]]>
<![CDATA[Analysis of Overall Equipment Effectiveness in Fanuc Line 1 Machines by Minimizing six big losses ]]>
<![CDATA[Sukanta]]>;
<![CDATA[Burhan N.]]>;
<![CDATA[Setiawan]]>;
<![CDATA[Dessy Agustina Sari]]>
<![CDATA[ Journal of Sustainable Engineering: Proceedings Series Vol 1 No 2 (2019) ]]>
Publisher : <![CDATA[Fakultas Teknik Universitas Sam Ratulangi ]]>
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DOI: 10.35793/joseps.v1i2.22
<![CDATA[The company produces several automotive components in Karawang. For the production process using Fanuc machines on Line1, but the results of evaluating the performance of the engine Fanuc Line1 engine effectiveness is not optimal. It was alleged that due to the planning and maintenance of the management machinery was not good, so that the frequency of damage to the machine was still high, which gave the effect that the production was not achieved. For this reason, the effectiveness of the use of Fanuc line1 is done by using the Overall Equipment Effectiveness (OEE) method with the Six big losses calculation approach so that the level of efficiency can be known. The results showed that the magnitude of the OEE value on Fanuc line1 machines in April – August 2018 amounted to 78.82%, this value is still below the JIPM standard of 85%. The amount of Losses is influenced by reduced speed loss of 57.47% and breakdown loss of 22.79%.]]>
<![CDATA[Bananas Muli as a product fruit leather through using microwave and oven dryers ]]>
<![CDATA[Dessy Agustina Sari]]>;
<![CDATA[Nurcahyo Widyodaru Saputro]]>;
<![CDATA[Azafilmi Hakiim]]>;
<![CDATA[Sukanta]]>
<![CDATA[ Journal of Sustainable Engineering: Proceedings Series Vol 1 No 2 (2019) ]]>
Publisher : <![CDATA[Fakultas Teknik Universitas Sam Ratulangi ]]>
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DOI: 10.35793/joseps.v1i2.24
<![CDATA[Post-harvest processing of bananas Muli local Karawang – Loji area became a research study on a breakthrough the kind of food products. Previously, this fruit only sold to consumers in the roadside, and the rest was thrown away or not utilized. Users prefer to consume directly and fresh. After that, its medium size with a diameter 3 to 4 cm caused this raw material did not display to be a selling outcome such as “sale” or chips. Bananas Muli has never received further food processing compared to other types of bananas (such as bananas Kepok, bananas Raja, bananas Tanduk, bananas Ambon, and others). The term of fruit leather gave the development and novelty for product fruit categories in the form of sheets. Furthermore, the process that occurred was decreasing water content used microwave and oven dryers, then temperature range between 60-80oC with constant sample thickness in three suitable stabilizers. Utilization of oven dryers to produce banana leather products without stabilizers was more likely to choose a temperature of 70oC as the best condition for decreasing water content in the ingredients. Meanwhile, the use of microwaves was able to produce electromagnetic waves and caused collisions between molecules owned by the sample. The results indicated a positive effect. Carrageenan and starch were more capable of binding the water molecules. This way helped the process of reducing water content much faster from the surface (free water) to the area in the sample (water bound to the equilibrium water content). This research resulted in a decrease in water content in the example by 10,5701-12,8639% within 3 hours of the drying process at the optimum conditions]]>
<![CDATA[Effects of different size of fly ash as cement replacement on self-compacting concrete properties ]]>
<![CDATA[Dilan Rantung]]>;
<![CDATA[Steve W.M. Supit]]>;
<![CDATA[Seska Nicolaas]]>
<![CDATA[ Journal of Sustainable Engineering: Proceedings Series Vol 1 No 2 (2019) ]]>
Publisher : <![CDATA[Fakultas Teknik Universitas Sam Ratulangi ]]>
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DOI: 10.35793/joseps.v1i2.25
<![CDATA[This paper aims to investigate experimentally the influence of replacing cement with different fineness of fly ash based on flowability, passing ability, compressive strength, tensile strength (splitting). Concretes with 15% fly ash (passed a number 100 sieve) and fine fly ash (passed a number 200 sieve) as cement replacement were cast and tested at 7, 14, 28 days after water curing. A superplasticizer in the form of viscocrete 3115 N was constantly used for each concrete mixtures as much as 1% by weight of cement. The results show that the use of fly ash does not significantly increased the compressive strength and tensile strength of SCC mixtures. However, concrete with 15% fine fly ash its self and combined 7.5% fly ash with 7.5% fine fly ash show better flowability and passing ability when compared to concrete with cement only indicating the performance of using smaller particle sizes of fly ash could lead better properties of SCC that can be potentially used for building construction application.]]>
<![CDATA[Effects of Coconut Sawdust on Mechanical Properties and Porosity of Concrete Mixtures ]]>
<![CDATA[Edoardo E. Kumendong]]>;
<![CDATA[Steve W.M. Supit]]>;
<![CDATA[Helen Mantiri]]>
<![CDATA[ Journal of Sustainable Engineering: Proceedings Series Vol 1 No 2 (2019) ]]>
Publisher : <![CDATA[Fakultas Teknik Universitas Sam Ratulangi ]]>
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DOI: 10.35793/joseps.v1i2.26
<![CDATA[The presence of coconut sawdust in North Sulawesi is very potential to be utilized as an alternative material for application in construction field. This paper aims to investigate experimentally the effect of coconut sawdust as an addition on concrete mixtures based on compressive strength, flexural strength and volume permeable voids tests. In this study, coconut sawdust with percentage of 2.5%, 5% and 7.5% by weight of cement was added into concrete mixture. The results show that concrete containing 5% of coconut sawdust exhibited highest compressive strength at 7 days with average value is 25.71 MPa while at 28 days the compressive strength is 30.50 MPa and there is no significant difference compared with 2.5% variation. When comparing the results of flexural strength test between 5% and normal cement concrete, the highest result is achieved by normal concrete reaching the value 6.78 MPa while for the concrete with 5% of coconut sawdust addition is only on 4.82 MPa. In terms of the volume of permeable voids, the results show that the porosity of concrete with coconut sawdust increased with the increase of percentage of coconut sawdust at 7 days but the values decreased as the age of curing increased.]]>
<![CDATA[Implementing Support Vector Machine Sentiment Analysis to Students' Opinion toward Lecturer in an Indonesian Public University ]]>
<![CDATA[Daniel Febrian Sengkey]]>;
<![CDATA[Agustinus Jacobus]]>;
<![CDATA[Fabian Johanes Manoppo]]>
<![CDATA[ Journal of Sustainable Engineering: Proceedings Series Vol 1 No 2 (2019) ]]>
Publisher : <![CDATA[Fakultas Teknik Universitas Sam Ratulangi ]]>
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DOI: 10.35793/joseps.v1i2.27
<![CDATA[Student feedback is an important evaluation tool for quality improvement. Moreover, in Indonesian higher education system there is an assessment regulation that puts special attention to the availability of the student feedback system. However, parts of the questionnaire are in the form of descriptive text that requires more effort for analysis. This situation leads to a very tiresome work in case of the number of documents reaches several hundred or even thousands. There were some efforts to apply computer-assisted classification by utilizing machine learning, however, most of them only analyzed English documents. Only a handful that studied the classification of documents in Bahasa Indonesia. In reality, we found some cases where the students used mixed languages while filling the evaluation forms. Therefore, in this study, we expand the application of text classification by using Support Vector Machne (SVM) to cases of student feedback in mixed languages. The model was built computationally and from the test, we get 74% accuracy and 0.46 Kappa value.]]>
<![CDATA[Strategies to achieve economic sustainability in a city with limited space (Case Study Cimahi Municipality) ]]>
<![CDATA[Pingkan Ketzia Tulangow]]>
<![CDATA[ Journal of Sustainable Engineering: Proceedings Series Vol 1 No 2 (2019) ]]>
Publisher : <![CDATA[Fakultas Teknik Universitas Sam Ratulangi ]]>
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DOI: 10.35793/joseps.v1i2.28
<![CDATA[New Urban Agenda (NUA) is the agreement of 197 countries in UN Habitat III Conference. NUA represents a shared vision for a better and more sustainable future. NUA has 3 principles, one of them ensure sustainable and inclusive urban economies. Cimahi Municipality is has many limitation to build the city physically. Cimahi in 2017 has 601.099 people (BPS, 2018), while the area of city only 40.20 km2 and the density 14.953 people/km2. In physical development, Cimahi limited by Kawasan Bandung Utara regulation for building coverage ratio and also by Kawasan Keselamatan Operasi Bandar Udara Husein Sastranegara regulation for floor area ratio. This research would formulate strategy to achieve the economic sustainability. SWOT analysis and 5C strategy are the method to formulate the strategy. Creative industry is the economic sector that should be develops base one condition that Cimahi had the people with good quality, but had a limited space to build the new production place and had limited natural resource. Based on SWOT analysis there are 12 strategies to develop creative economic. The core strategy is to encourage people to become entrepreneur]]>
