Indonesia Conference Directory

Corresponding Author
Iwan Susanto

Institutions
Institute of Road Engineering
Agency for Research and Development
Ministry of Public Works and Housing

Abstract
Indonesia is boosting infrastructure development, including in the connectivity sector and electricity supply, where coal fired power plants are most widely used and spreaded throughout the archipelago. Coal burning activity will produce ash namely, Fly Ash and Bottom Ash (FABA). Indonesia Government considered FABA as Hazardous and Toxic Waste (B3) in category 2 from specific sources, due to its chemical and physical variations and massive volume. By 2019, the production of FABA are predicted around 6.598.493 tons. It is predicted that this volume will increase along with government policies on the 35,000 MW program which must be fulfilled by 2024. Therefore, technical utilization of FABA is needed so that it does not pollute the environment due to improper handling. The purpose of this research is to study the utilization of FABA from Labuan Angin coal fired power plant as a road pavement material that not only fulfill the required specifications, but also has better performance and environmentally safe. The reseach method was laboratory experiment, which consists of FABA characteristics testing, and mixtures for road pavement testing. Criteria for utilization of FABA as a road pavement material, must be carried out with the use of substances that capable to binding FABA so that it does not come off. Waste of FABA will be assessed for use as hotmix asphalt, concrete, and base layers. The test results showed that Fly Ash (FA) of Labuan Angin was type F with levels of CaO more than 10 percent and LoI: 4.27 percent. Characteristics testing of FABA also showed results such as specific gravity of FA 2.64 and BA 2.56, absorption of BA 3.24 percent, and sand equivalent test was 95.35 percent. The results of the study shows that for asphalt and concrete mixtures, FABA from Labuhan Angin was less effective in use. In asphalt mixtures, waste that can be used is fly ash i.e as a filler with a low volume of only 5 percent. For concrete mixtures, results of concrete mortar test shows that the FABA from the Labuan Angin is not suitable for geopolymer concrete because it cannot provide workability in the mixture. In addition, a conventional concrete mixture with OPC cement was experimented but a large amount of water was needed which reached 95% so that the strength at the age of 7 days only reached 8 until 14 MPa. In the utilization for road base layer the results shows that the composition of 75 percent bottom ash, 25 percent fly ash, and 9 percent PCC cement produces a maximum density γd = 1.71 percent, optimum moisture content = 5.84 percent, and Unconfined Compressive Strength (UCS) 33.05 kg per cm2 of the required value of 25 to 40 kg per cm2. Utilization for foundation layer is most effective, because in addition to being able to absorb more waste, the binding process of cement and compaction with heavy equipment can also prevent waste of FABA from released so it is environmentally safe.

Keywords
Base Layers, FABA, Road Pavement, UCS

Topic
Environmental Technology

Link: https://ifory.id/abstract/3JDYv6MKfXzU

Corresponding Author
muhammad zayin Sukri

Institutions
1Departemen of Agricultural Production, State Polytechnic of Jember, Jl. Mastrip, Jember, Indonesia

Abstract
Land is one of the basic needs in agricultural cultivation. Considering the vast land area of the coast, there needs to be an accurate thought in utilizing the land area of the coast for an alternative farming business with all the consequences so that its limitations can be overcome. Puger District is one of the districts that has been central to the development of horticultural crops since 15 years ago by utilizing sand in the coastal areas. The problem of chili cultivation in puger is still not optimal because of some problems such as plant growth that is not optimal because it is not supported by adequate nutrition and sufficient water. Therefore, there is a need for technological applications in increasing soil fertility in sand fields in order to optimize agricultural production of horticultural commodities, including by providing organic material, zeolite sand and sugarcane stem compost. The purpose of this research is to get the best dose of organic fertilizer, zeolite and sugarcane compost in improving water retention, and cation exchange capacity and chilli growth in Puger District sand and to get the best interaction dose between organic fertilizer, zeolite and sugarcane compost. This research activity will be carried out from May to November 2018. The research was conducted at the Green House Laboratory of Plants and Bioscience - POLIJE, Jember East Java at an altitude of 90 m above sea level. The design that will be used is the design of RAK with 3 factors. The first factor is the dose of organic fertilizer with a level of 20 tons ha-1 and 40 tons ha-1, the second factor is the dose of zeolite with a level of 20 tons ha-1 and 40 tons ha-1 and the third factor is the compost dose of sugarcane stems with a level of 20 tons ha-1 and 40 tons ha-1. The total combination of treatments amounted to 8 and repeated 3 times with each unit consisting of 4 plant pots so that a total of 96 unit plant pots. Analysis of the experimental results includes physical analysis of the soil such as specific gravity, water retention, freezing content, field capacity, and porosity.

Keywords
Biology, Physical, Chemistry, Fertile, Sand

Topic
Agriculture Engineering and Biotechnology

Link: https://ifory.id/abstract/pHWXMgLTZx4e

Corresponding Author
Fadjar Goembira

Institutions
Universitas Andalas

Abstract
This research was conducted to evaluate particulate matter 10 (PM10) concentrations in ambient air of West Sumatra Province during rainy season, i.e., in March 2018. Data from four sampling locations were collected. The first one was collected from an air quality monitoring station (AQMS) located at a roadside in the office of West Sumatra Governor. The other locations represent industrial area, i.e., nearby a cement production plant, a campus area that is located nearby an agricultural area, and a background concentration area that is considered unaffected by anthropogenic sources. The measurement results show that the highest PM10 was obtained nearby the cement industry area which was 68.71±10.99 µg/Nm3. This value exceeded World Health Organization (WHO) threshold for 24-hour measurement, although it is still below the Indonesian National Ambient Air Quality Standard (NAAQS). On the other hand, the rest locations still met both WHO and Indonesian NAAQ Standards, i.e. 13.20±3.11, 28.60±13.97, and 33.85±8.41 µg/Nm3, at the background concentration location, Governor-s Office, and the campus area, PM10 concentrations were, respectively.

Keywords
PM10, ambient air, West Sumatra, rainy season

Topic
Environment, Health, and Safety

Link: https://ifory.id/abstract/dfvR3PXj7hAK

Corresponding Author
Beni Widiawan

Institutions
a) Information of Technology, Politeknik Negeri Jember
Jl. Mastrip PO BOX 164 68101, Jember, Indonesiar
*syamsiar_kautsar[at]polije.ac.id
b) Horticultural Production, Politeknik Negeri Jember
Jl. Mastrip PO BOX 164 68101, Jember, Indonesiar

Abstract
The global population is projected to grow from around 7.3 billion (in 2017) to nearly 9.8 billion in 2050. In low-income countries, the population can double to 1.4 billion. Therefore, a 50 percent increase in food and other agricultural production will be needed from 2012 to the middle of the century. This increase has implications for agriculture and the food system to adapt significantly to becoming more productive and diversifying while overcoming climate change and unpredictable natural disasters. Therefore, the development of integrated agricultural technology has become one of the main research focuses on Indonesia. With integrated agricultural technology, agricultural productivity can also be increased even in limited land. Based on this, in this study a wireless mobile-robot manipulator control system was developed which is designed to support a smart-greenhouse system using Raspberry Pi. Mobile-robot is equipped with 4 DOF manipulator arms which can be used to carry out several treatments on plants. This research stage begins with the design and planning of a system on a mobile-robot manipulator. Furthermore, modeling and system integration is performed so that the mobile-robot manipulator can be controlled wirelessly based on motion recording using sensors. In the final stage, the robot manipulator performance testing is carried out which has been implemented in an online mobile-robot manipulator control system.

Keywords
mobile robot, greenhouse, raspberry pi, manipulator

Topic
IT for Agriculture

Link: https://ifory.id/abstract/YmGTRaEhqWQu

Corresponding Author
Abdul Aziz Nasihuddin

Institutions
a) Faculty of Law, Universitas Jenderal Soedirman
* abdul.azns2019[at]gmail.com
b) Faculty of Social and Political Sciences, Universitas Jenderal Soedirman
c) Faculty of Economics and Business, Universitas Jenderal Soedirman

Abstract
This study aims to explore the role of social capital in promoting sustainable rural development area in Banyumas Regency, Central Java. This study departs from the problem of a lack of community involvement in a rural development area. Community force or social capital has a potential role in determining the future of rural development. Also, Law No 6/2014 on Village, in particular, Section 2 mentions that social participation becomes a key principle of the rural development area. Using three villages in Somagede Subdistrict Banyumas Regency, this study applied legal research approach and qualitative case study to understand the existing community forces in supporting a pilot project of the rural development area in Somagede Subdistrict. Informants were purposively selected representing community leaders, village government, young leaders, and village development cadres. Our results show that various community-based organizations have developed well in three villages. There are at least 4 types of community-based organizations, namely tourism, agriculture, animal husbandry, and small industries. Besides, local wisdom also still exists in three villages including Suran and Sadrana. Klinting Village, which is partly a Hindu community, celebrates Nyepi. In terms of performing arts, all three villages have lumping horse and wayang lengger performing arts. The Tangeran Village specifically has additional performing arts from Beans. In the legal perspective, implementation of rural development area project should take community-based organizations and local wisdom into account. The village law also states that implementation of rural development area will require all elements in the village to have a common perception, common vision, common mission and common purpose. Involvement of social capital elements in rural development will promote the sustainability of rural development area project. Therefore, the findings of this study contribute to an understanding of the role of social capital in promoting sustainable development area.

Keywords
social capital; sustainable rural development area; legal study; Banyumas

Topic
Sustainable Development

Link: https://ifory.id/abstract/K6NDk4P8Buge

Corresponding Author
I Putu Agus Kertawirawan

Institutions
Balai Pengkajian Teknologi Pertanian Bali
Jl. Bay Pass Ngurah Rai Pesanggaran Denpasar
e_mail:agus_kwirawan[at]yahoo.com

Abstract
Research was conducted in Nusa Penida, Klungkung-Bali from January to December 2018 using 21 Bali cattles. The study was design by randomized block design divided into 3 treatment groups. Control group (P0) : cattle were not given additional feed treatment, while group P1 and P2, the cattle was given 1 kg polard/day, for four months (2 months pre and postpartum). P2 group, the cattles was given biocas probiotics as much as 5 ml/ day. Parameters observed were birth weight, weaning weight and postpartum estrus. Data analyzed using variance analysis (ANOVA). The results is, statistically calf birth weight was not significantly as 18.4 kg (P0) and 18.6 kg respectively (P1 and P2). Weaning weights, P2 group showed better performance is 97.7 kg, followed by groups P1 (93.1 kg) and P0 (79.4 kg). that performance make the average calf selling price (P1 and P2) was higher than the control. The highest average was obtained in group P1 which was IDR. 3,941,667, - / calve followed by P2 IDR. 3,716,667, - / calve and P0 IDR. 3,290,000 / calve. The average duration of post partum estrus is shorter on P2 (113.3 days), than P1 (123.7 days) and P0 (138.4 days)

Keywords
Keywords: Bali cattle, feed, and calf performance

Topic
Animal Nutrition, Animal Production, and Veterinary Science

Link: https://ifory.id/abstract/MEYPkC3vzdWw

Corresponding Author
Bondan Rizky Ramadhan

Institutions
a) Departement of Geography, Faculty of Mathematics and Natural Science, Universitas Indoneisa
*astrid.damayanti[at]sci.ui.ac.id

Abstract
An earthquake is a natural disaster that is often found in Indonesia because its geological area is a meeting between three large tectonic plates. Earthquakes have a high level of danger due to unpredictable events. In the Sulawesi region, especially Makassar, in 2017 there was an earthquake measuring 3 SR-6 SR, with a shallow epicenter. Epicenter distance calculation is used to determine the value of peak ground acceleration (PGA) which can then affect the intensity value in the hypocenter. This study aims to analyze the level of earthquake hazard using the PGA value as the basis for the initial reference of earthquake disaster mitigation. Variables used include rock type (geology), slope and the value of peak ground acceleration (PGA). Data on rock types were obtained from the Makassar City BPBD and slope variables were processed from the SRTM DEM. Next, an overlay analysis was conducted to determine the level of earthquake hazard using a GIS application. The results showed that Makassar City had a majority of 94% of its area has a low level of earthquake hazard while 6% of the area that had an earthquake hazard level was quite high in the east of Makassar. The frequency of earthquakes that were felt to be influential by the community (scale III MMI) was only 2 times in the last 3 decades (1996 and 2018).

Keywords
earthquake hazard level, geological structure, Makassar City, PGA, slope

Topic
Environment, Health, and Safety

Link: https://ifory.id/abstract/TWQVN7KULZzu

Corresponding Author
I Putu Agus Kertawirawan

Institutions
Balai Pengkajian Teknologi Pertanian (BPTP) Bali
Jln. Bay Pass Ngurah Rai, Pesanggaran, Denpasar Selatan, Bali
Email : budiariluhde[at]yahoo.co.id

Abstract
This study aim to increase feeder cattle growth in Buleleng Bali has been done in Tulus Bakti livestock group from February - June 2019. Completely Randomized Design (CRD) is used. feed treatments: R0 = Cows given forage + 1 kg /cow / day rice bran, R1 = Cows given forage + 1 kg / cow / day (50% rice bran mixed by 50% peanut skin) and R2 = Cows given forage + 1 kg /cow / day (25% rice bran mixed by 75% peanut skin). Parameters observed were weight gain, feed consumption, and Feed Conversion Ratio. To find out farm feasibility level, Revenue cost ratio analysis is done. Result showed cows given R1 treatment resulted 0.40 kg / day weight gain, not significantly (P> 0.05) from R0 and R2. Ration consumption and FCR also no significant (P> 0.05). Farming analysis results showed three treatments gave benefits, but R2 gave highest benefits, its can be seen from R / C ratio R2 (1.22), R1 (1.21) and R0 (1.20). 75% of rice bran substituion by peanut skin can reduce feed prices untill 52.03% and give profit IDR. 1,340,122 so feasible to apply.

Keywords
Keywords: Feed substitution, peanut shells, growth, feeder cattle.

Topic
Animal Nutrition, Animal Production, and Veterinary Science

Link: https://ifory.id/abstract/JfHKbxPqNr3g

Corresponding Author
Ahmada Dian Nurilma

Institutions
Institut Teknologi Bandung

Abstract
With the increasing number of tourism visitors at Komodo National Park, the economic growth of West Manggarai Regency has increased mainly from sectors related to tourism activities. In Indonesia, the tourism sector is ranked fourth as the countrys largest foreign exchange contributor after oil and gas, coal, and palm oil. The objectives of this research are: (1) to calculate the multiplier effects of direct, indirect and induce economic activities caused by tourism activities in Komodo National Park, and (2) to calculate the income disparity among business communities in area around Komodo National Park. This study used the Keynesian Multiplier Effect to measure the economic impact that occurs in West Manggarai Regency from the existence of tourism activities in the Komodo National Park. The income disparity between business actors is measured by the Gini Ratio and Lorenz Curve Coefficients. The results showed that the Keynesian Multiplier Effect values from tourism activities in Komodo National Park were more than one (>1), meaning that the tourism activities in Komodo National Park had been able to provide economic impact for the people in West Manggarai Regency. Income inequality between tourism business actors in West Manggarai Regency is 0.503, which means that among business actors there is high inequality in terms of income earned.

Keywords
Keynesian Multiplier Effect, Income Disparity, Komodo National Park

Topic
Urban Development and Resilient Community

Link: https://ifory.id/abstract/9ALY7WB6HQqF

Corresponding Author
I Putu Agus Kertawirawan

Institutions
Balai Pengkajian Teknologi Pertanian Bali
Jl. By Pas Ngurah Rai Pesanggaran Denpasar
e_mail:n_adijaya[at]yahoo.com

Abstract
The study was conducted in Sanggalangit Village, Gerokgak Subdistrict, Buleleng-Bali, from May - August 2018. Randomized block design (RBD) was used with 4 replications. Treatments tested were P1 (Bima 20 URI legowo), P2 (Bima 20 URI tegel), P3 (Nasa 29 Legowo), P4 (Nasa 29 tegel), P5 (Bisi 18 tegel) and P6 (Bisi 18 farmers planting). Legowo planting 2: 1 using 100 x 50 x 20 cm spacing with 1 plant /hole, tegel planting (75 x 40 cm) with 2 plants/hole, farmers-s way was by hijacking. Result showed yield components of three corn varieties was significantly different except plant leaves number and cobs number/ plant. P1 and P2 gave highest weight per plant per hectare with 26.75 t / ha and 26.14 t / ha average significantly higher than other except for P5 (24.82 t / ha). P1 (11.01 t / ha) and P5 (10.56 t / ha) treatments gave significantly different than other except P2 (10.30 t / ha). Farming analysis results showed all treatments are feasible. Highest B / C ratio is produced by P1 (0.92). Increasing profit is caused by additional income from plants slash sold as cattle feed with a contribution reaching 33%

Keywords
Keywords: yield performance, feed potential, hybrid corn

Topic
Others (Related to food and agriculture)

Link: https://ifory.id/abstract/3RwUzk7BN6Vg

Corresponding Author
Himawan Himawan

Institutions
Postgraduate Program of Sebelas Maret University Surakarta Indonesia

Abstract
Lead pollution of soil is a serious global problem due to risk of entering food chain and ground water contamination. Anthropogenic activities such as mining, smelting, agriculture and industry have played an important source of Pb in soil. Cinangka is a Pb-polluted area impacted from the processing of used batteries since the 1990s. Although serious government efforts have been made, the remediation has not yet been completed because of insufficient resources. Therefore, it needs periodical monitoring and follow up. This research aimed to study the condition of lead pollution in soil and groundwater in the former battery recycling in Cinangka Bogor. Specifically the study was focused on Pb level in topsoil, Pb geochemical fraction distribution and environmental risk assessment, Pb profile on the soil horizon, and groundwater contamination. The geochemical fractions of Pb were determined by sequential extraction with a modified BCR method followed by AAS measurement. The results showed that the soil in the former recycling center contained Pb above 10,000 ppm which was dominated by reducible fraction (F2) and acid soluble fraction (F1) having moderate environmental risk. Vertically until 45 cm depth, the deeper the soil the lower the Pb content and the ground water in the study site did not show any lead contamination. We recommended immediate sustainable remediation of the contaminated site.

Keywords
lead, soil contamination, risk, ground water, cinangka

Topic
Environment, Health, and Safety

Link: https://ifory.id/abstract/XzreFUNCABG6

Corresponding Author
Andik Irawan

Institutions
Politeknik Negeri Jember

Abstract
Utilization of natural fiber can be used as an automotive component product with structural and composite strength that is in accordance with ASTM standards. The purpose of this study is to measure bending, tensile, and microstructure using Scanning Electron Microscopy (SEM) as an analysis of the composite structure between rubber composites made from ramie reinforced and banana fibers with latex. The material use is agro fiber form banana tree and ramie, mixing with latex. The Variation are 10%, 20% and 30% reinforce,and latex start from 70% to 90%. Mechanical Properties of Composite Strengthened Rubber Ramie Fiber and Banana Fiber with latex used for sample prototype replacement Automotive Rubber Installation (Synthetic rubber). This research method is by making samples according to ASTM with each of 3 specimen samples in each fiber composition and rubber composite, a total of 30 specimen samples. 15 specimens were subjected to tensile tests, 15 bending test specimens and specimens with optimal results in each composite composition were subjected to SEM tests. The results of this research are expected that the material properties of each variation of the composite can be used according to load requirements.

Keywords
ASTM, SEM, Bending, Composites

Topic
Others (Related to food and agriculture)

Link: https://ifory.id/abstract/6Arp2EZxYNBD

Corresponding Author
Dwi Martha Romadhona

Institutions
a) Student Department of Geography, Faculty Mathematics and Natural Science, Universitas Indonesia, Depok, 16424, Indonesia
* dwi,martha.dmr[at]gmail.com
b) Lecturer Department of Geography, Faculty Mathematics and Natural Science, Universitas Indonesia, Depok, 16424, Indonesia
*dewi.susiloningtyas[at]sci.ui.ac.id
c) Lecturer Department of Geography, Faculty Mathematics and Natural Science, Universitas Indonesia, Depok, 16424, Indonesia
* ysupris[at]yahoo.com
d) Lecturer Department of Geography, Faculty Mathematics and Natural Science, Universitas Indonesia, Depok, 16424, Indonesia
*hafid.setiadi[at]gmail.com

Abstract
The motivation of youth in recreation has a variety of factors that vary according to the characteristics of the region. Banyakan and Ngasem are Sub-Districts which border directly with the City of Kediri. The two Sub-Districts have different regional groupings. Therefore, this study aims to describe and analyze whether there are differences in adolescent recreation motivation based on local characteristics. The variables used in this study are motivation, activity, destination, distance, cost, and frequency. The results of this study are the Classification of urban youth motivation tend to have a Physical Motivation classification where the activities carried out are physical needs activities, such as walking, relaxation, or just relaxing. Whereas adolescents in rural areas tend to have a Social Motivation classification, this is influenced by the external motivation of youth rural who tend to be due to the invitation of friends. Teenagers in urban and rural areas viewed from Internal Motivation does not have a significant difference wherein the two regions are more likely to reason for costs as internal motivation. When seen from External Motivation, adolescents in urban areas consider more facilities in choosing destinations, while adolescents in rural areas are more likely to invite friends as motivation. Adolescents in urban areas have a smaller range of recreation than rural adolescents, and this is because the distance to the center of urban facilities is closer than that of rural areas.

Keywords
Motivation for Recreation, Youth, Regional Characteristics, Urban, Rural

Topic
Urban Development and Resilient Community

Link: https://ifory.id/abstract/2mXFRvUG3Dag

Corresponding Author
Alamsyah Sutantio

Institutions
Politeknik Negeri Jember

Abstract
Regional economic development strategies can be through the development of regional natural resource potential. One of the villages that has great potential in Jember Regency is Karangpring Village, Sukorambi District, Jember Regency which has the potential in the form of rose flower cultivation which is carried out massively by the villagers and becomes one of the largest supplier of roses in the Tapal Kuda area. The higher potential for abundant roses provides an opportunity for the community to innovate to produce processed products from roses. However, in its development, processed products of roses cannot develop due to factors. Thus, the purpose of this study is to support supply chain management of processed rose products in Karangpring Village, Sukorambi District, Jember Regency. The method used in this study is in-depth interviews to be able to explore the analysis of supply chain management. The analysis technique used is qualitative and value chain analysis. The results in this study indicate that the problems underlying the development of processed rose products are found in the raw material supplier system. This is caused, roses at certain times have a high price because of the demand for roses that exceed supply. This condition indicates that farmers will have a greater advantage when roses are sold directly compared to being sold as processed product ingredients, so that roses farmers prefer to sell their roses directly. The solving this problem, the solution that can be done is to increase production when the price of roses is still relatively low and reduce production when the price of roses starts to increase dramatically.

Keywords
Qualitative, Value Chain Analysis, Deep Interview, Rose-Processed Products

Topic
Agroindustry and Agribusiness

Link: https://ifory.id/abstract/7LNctjFemAnP

Corresponding Author
Yogi Yogaswara

Institutions
Universitas Pasundan

Abstract
PD. Kebersihan Kota Bandung has been facing one of the problems related to vehicle routing since the route used for waste transport by the company currently does not pay attention to the location and distance of the TPS to be visited, resulting in a longer total distance of 564, 30 km. With the current routes, the company does not have a definite schedule of waste transport, this problem concern involve for waste heap. Therefore, VRP research was conducted to determine the transportation of waste routes in West Bandung area by producing solutions that can be proposed to reduce the total distances. The research was solved using the Tabu Search method, the application of this method requires the initial solution. In this study, the saving and sequential method insertion used to create the initial solution, then the initial solution was done repair by using the Tabu Search algorithm. The result of data processing with tabu Search generates 15 routes with the total mileage for each day of 448.48 km. Total distance generated by Tabu Search resulted in a decline of 115.82 km or give a savings of 20.53% from total distance with the current route.

Keywords
Tabu Search, VRP, waste transportation problem

Topic
Sustainable Development

Link: https://ifory.id/abstract/mYGT4ebJDq8L

Corresponding Author
Siti Djamila

Institutions
a) Departement of Agricultural Engineering
Politeknik Negeri Jember
jalan Mastrip 164
a*) umi.djamilasy[at]gmail.com

Abstract
Harvested oyster mushrooms with high moisture content are easily damaged by enzyme and microorganism. Drying the mushroom into flour using sun drying or artificial dryer can extend the storage time. Rotary vacuum dryer, an artificial dryer, works on vacuum conditions with automatic material reversal technology. The vacuum conditions can reduce boiling point and minimize the nutrition damage. The purpose of this study is to compare the physical and chemical characteristics of oyster mushroom flour produced by rotary vacuum dryer and sun drying. Rotary vacuum dryer works at 60 o C for 8 hours while sun drying requires 6 hours for 4 days. Next, 80 mesh hammer mill is used to grind the dried oyster mushroom. The process includes physical and chemical test analysis with the statistical results followed by t test to understand the two treatments average differences. The results show that all chemical characteristics: moisture content, protein, ash, dietary fiber, produced by rotary vacuum dryer is not significantly different from sun drying. The physical characteristic: color (lightness) and the water activity are not significantly different but the water holding capacity and bulk density are significantly different.

Keywords
oyster mushroom , rotary vaccum dryer , physical and chemical characteristics

Topic
Agriculture Engineering and Biotechnology

Link: https://ifory.id/abstract/Pu8Vy2wWZDn6

Corresponding Author
Yowan Embuai

Institutions
a) Master Student of Health Promotion Program
b) Faculty of Public Health, Diponegoro University

Abstract
This study aims to analyze individual, occupational, and occupational health and safety behavior factors for decompression events in traditional diver fishermen in Ambon. Decompression is a disease in the form of an abnormality due to the release of gas bubbles in the blood due to decreased air pressure under the sea. This research was conducted on traditional diver fishermen using the case control research design and using nonprobability sampling techniques. Data collection tools in the form of questionnaires, interviews with respondents, and direct observation, using a measuring instrument. Data analysis used in the form of univariate, bivariate and multivariate with the use of SPSS statistical program. The results were obtained: there was a significant relationship between the length of work with decompression disease, there was a significant relationship between depth of diving and decompression disease, there was a significant relationship between duration of diving and decompression, there was a significant relationship between the frequency of diving and decompression, there is no significant relationship between safety and health behavior of water consumption and decompression disease, there is a significant relationship between occupational health and safety behavior using personal protective equipment with decompression sickness, the existence of a relationship which is not significant between occupational safety and health behavior of cigarette consumption and decompression disease, there is an insignificant relationship between occupational safety and health behavior of alcohol consumption and see the risk of each variable.

Keywords
Decompression sickness, occupational safety and health behavior, traditional fishermen, diving risk factors.

Topic
Environment, Health, and Safety

Link: https://ifory.id/abstract/wbjZAUaXGVpz

Corresponding Author
I Komang Damar Jaya

Institutions
Faculty of Agriculture University of Mataram
Jl. Majapahit 62 Mataram, Lombok, West Nusa Tenggara
*)ikdjaya[at]unram.ac.id

Abstract
Recent climate change causes rainfall variability. This study aimed to report maize yield in a dryland area of North Lombok as affected by rainfall variability. A three-year study was conducted during a period of maize growing season (December to April) in 2015/2016, 2016/2017 and 2017/2018 in Gumantar village, North Lombok. Daily rainfall data was collected from a rain gauge installed in one of maize farmers- land. Estimation of drain upper limit (DUL) and crop lower limit (CLL) was done based on gravimetric method. Hand-held core kits were used to collect soil samples at 0-15cm, 15-30cm, 30-60cm depth at sowing, fast vegetative growth stage (35 days after sowing=DAS), grain filling stage (85 DAS), and at harvest. Maize yield data were collected from 20 farmers that all grew maize as main crop and legume crop (ground nut or mung bean) as secondary crop. The study revealed that there was a great rainfall variability in term of the beginning of rainy season, volume and distribution of the rain as well as the occurrence of dry-spell period. The rainfall variability had caused a great maize yield variability, not only between the growing seasons but also within a growing season. The highest maize yield recorded was 8.4 ton/ha and the lowest was 0.6 ton/ha. Timing in sowing the seeds and the ability of the crops to escape the dry-spell determined the crops yield. Growing legume crop in addition to maize can be a good practice in dryland area to avoid total yield loss.

Keywords
adaptation, climate change, dry-spell, silking, water

Topic
Others (Related to food and agriculture)

Link: https://ifory.id/abstract/4ZvhLT8patq2

Corresponding Author
Burhannudin Ichsan

Institutions
a: Student of Public Health Doctoral Program, Universitas Sebelas Maret Surakarta; Lecturer of Faculty of Medicine, Universitas Muhammadiyah Surakarta
Email: bi268[at]ums.ac.id
b: Lecturer of Public Health Doctoral Program, Universitas Sebelas Maret Surakarta; Department of Public Health, Faculty of Medicine, Universitas Sebelas Maret Surakarta
c: Lecturer of Public Health Doctoral Program, Universitas Sebelas Maret Surakarta; Professor of Department of Pediatric, Faculty of Medicine, Universitas Sebelas Maret Surakarta

Abstract
Breastfeeding is the best nutrition for infants since it gives benefits not only for infants, but also for mothers. Exclusive breastfeeding makes infants have better growth and development. WHO recommends six months of exclusive breatfeeding, which is breastfeeding without food or other drinks. One of the obstacles for exclusive breatfeeding is of the infants grandmother. Hence, specific materials for educating mothers and grandmothers on breastfeeding is needed. We developed a module for educating exclusive breastfeeding for the mothers and grandmothers by the 4-D method (define-design-develop-disseminate). The findings showed that the module could be used by health cadres to address issues related to exclusive breastfeeding among mothers and grandmothers.

Keywords
exclusive breastfeeding, module, mother, grandmother, cadres.

Topic
Environment, Health, and Safety

Link: https://ifory.id/abstract/tcQv4L9jA2Mk

Corresponding Author
Syamsiar Kautsar

Institutions
a) Information Technology Departement, Politeknik Negeri Jember
Jalan Mastrip PO BOX 164, Jember, Indonesia
*syamsiar_kautsar[at]polije.ac.id
b) Agricultural Production Departement, Politeknik Negeri Jember
Jalan Mastrip PO BOX 164, Jember, Indonesia

Abstract
The Central Statistics Agency (BPS-Indonesia) reports that agricultural land area continues to decline. Their notes in 2018, the land area of ​​7.1 million hectares, down compared to 2017 which is still 7.75 million hectares. The land area figure was obtained by the Area Sample Framework (KSA) methodology using data from satellite images of the National Aeronautics and Space Institute (LAPAN) and Geospatial Information Agency (BIG). The decrease in the land area was triggered by the incessant conversion of agricultural land. To overcome the decline in the area of ​​agricultural land, many agricultural innovations were carried out on limited land, including farming systems on the roof, greenhouses and/or hydroponics. With the high rate of urbanization, the agricultural system on limited land is one of the solutions that is much favored by urban residents. In this study, a precision farming system was created using Computer Numerical Control (CNC) technology based on microcontroller. CNC is a machine tool automation system that is operated by randomly programmed commands and stored in storage media. By using CNC technology, it allows the machine to follow the coordinate points that are entered into the system accurately. The accuracy of the machine motion can reach 1mm. The system is made, similar to the control system on a 3D Printer machine with a wider work area. Work area in the form of a box with a size of 1mx1.5m with planting media in the form of burning husk. The machine that was made was given the name "Farming-BOT", short for the robot for farming. With Farming-Bot technology, the process of planting seeds, watering, applying fertilizer, and monitoring the condition of the land can be done automatically 24/7.

Keywords
precision agriculture, CNC, microcontroller

Topic
IT for Agriculture

Link: https://ifory.id/abstract/xmDdqpH2jbkf

Corresponding Author
Mulyanto Mulyanto

Institutions
Sociology Study Program, Faculty of Social and Political Sciences
Universitas Sriwijaya

Abstract
Environmental risk analysis is predicting the possibility of the occurrence of a risk from an activity and determining the impact of the activity. Oil mining by the society has high risk, i.e. environmental degradation. Based on environmental risk identification, there are 12 environmental components which become impact sources. The present study was aimed to describe, analyze and interpret the environmental risk of illegal oil mining. The present study used critical theory paradigm. Based on analysis using qualitative matrix on the environmental components of oil mining by the society, there were high environmental risk scores in almost all environmental components, except increase in people-s income which had a low score. Therefore, the environmental risks of oil mining by people in the research location had massive environmental risks and environmental impacts.

Keywords
Oil mining, Environmental risk, Impact source

Topic
Environment, Health, and Safety

Link: https://ifory.id/abstract/DEkxwRyr7YfC

Corresponding Author
Sri Sundari

Institutions
Politeknik Negeri Jember

Abstract
Nowadays, Mocaf (modified cassava flour) is a kind of popular snack. It can be found in some souvenir or gift shop with various flavor. Mocaf snacks also consumed in casual condition or working time. Dian Nita is leading mocaf snacks production as an innovation of Modified Cassava Flour products in a simple method. Some issues were found before the partnership program such as mocaf dough was produced by manual method that only created small capacity with slow rate production; unattractive packaging design; short-time product durability; don-t have P-IRT authorization; difficult to count the cost of goods manufactured and determine the sales cost that caused inaccurate to counting net profit from this mocaf business. With this program the issues can be solved by (1) Implementing more efficient technology with multipurpose mixer to improve capacity and productivity; (2) Using modern oven that equipped with temperature control to make products maturity more distributed; (3) Redesign packaging and put information about expired date, P-IRT number and halal label; (4) Completing Business Registration Number, industrial business permit, and perform nutrition test; (5) Improving business management by applying small medium enterprises accountancy, upgrading the operational production method, market segment and marketing, both online and offline stores

Keywords
Mocaf accompaniments, Processes technology, Product packaging

Topic
Others (Related to food and agriculture)

Link: https://ifory.id/abstract/FNwQtpKBxb9v

Corresponding Author
Arum Siwiendrayanti

Institutions
a) Environmental Health Division, Public Health Science Department, Universitas Negeri Semarang
b) Health Promotion Division, Public Health Science Department, Universitas Negeri Semarang
c) Pekalongan Regency Health Office

Abstract
Pekalongan City is a filariasis endemic area in Central Java, Indonesia with Mf-rate >1%. It had held Mass Drug Administration (MDA) in 2011-2015. The evaluation result recommended it to re-hold MDA. This study aimed to compose filariasis vulnerability zonation based on environmental and behavioral aspects in Pekalongan City. The observed environmental aspects were the location of shrubs, cattle pen and tidal flood. The surveyed behavioral aspects were applicating mosquito repellent and hanging clothes habits. Filariasis cases data were collected from health office. This was a descriptive quantitative study with spatial approach. The environmental and behavioral aspects were observed and surveyed in 6 urban villages (38 RWs) with 387 households as samples which were chosen with proportional random sampling. The instruments were checklist sheets, Global Positioning System (GPS), satellite imagery and GIS software. Data were analyzed with scoring, buffering and overlaying procedures. Results indicated some areas were categorized as highly vulnerable where shrubs, cattle pen, tidal flood and hanging clothes habit were present. It was concluded that all urban villages in this study had highly vulnerable RWs which are very potential for filariasis transmission. Applicating mosquito repellent habit was not potential aspect for controlling filariasis transmission in the studied areas.

Keywords
filariasis; environment; behavior; vulnerability zonation

Topic
Environment, Health, and Safety

Link: https://ifory.id/abstract/nkdCGYKv4NWw

Corresponding Author
Dedy Eko Rahmanto

Institutions
a) Renewable energy Engineering, Politeknik Negeri Jember, Jalan Mastrip POBox 164 Jember
* dedy_eko[at]polije.ac.id

Abstract
Gunung Pasang plantation is located in Panti-Jember. The Gunung Pasang plantation actually already has a Francis type microhydro turbine with a power output of around 30 kW. However, this power is still too small when compared to energy needs in plantations which can reach 90 kW. A study is needed to find out the potential of micro-hydro energy in the Gunung Pasang plantation as a reference for developing micro-hydro energy in the plantation. Potential studies are carried out by measuring the discharge using a current meter and measuring the difference of elevation using a automatic level and altimeter. The result of measurement of potential river flow discharge in the dry season is 0.202 cms. The difference in elevation measured at the first point is 54.19 meters and the second point is 113.09 meters. Microhydro power potential based on the results of calculations by taking a discharge of 0.18 cms for the first point is 69.61 kW and for the second point 145.27 kW. Utilitation of potential power in the second point will be able to meet the electricity needs of the plantation. Economic feasibility analysis is needed if the micro hydro potential is to be developed.

Keywords
energy; Gunung Pasang; microhydro

Topic
Renewable and Novel Energy Sources

Link: https://ifory.id/abstract/GqYzmEt9jwb6

Corresponding Author
Sudirah Sudirah

Institutions
Universitas Terbuka

Abstract
In tourism development, an analysis of the development of creative tourism potential is an interesting study. The core of tourism development, among others, is the development that prioritizes local wisdom, and the preservation of art culture (batik). Development of batik creative tourism potential, should consider aspects of tourism support, and the characteristics of creative tourism. Batik creative tourism offers the opportunity for tourists to develop creativity by learning with local residents in the process of making batik. This study from an economic sociological perspective is motivated by the powerlessness of the tourism sector in developing the potential for creative tourism in batik. Creative tourism requires the development of potential for the advancement of batik creative tourism. This article examines the development of batik creative tourism potential in the village of Paoman, Indramayu district, West Java, 2018. Data collection was carried out through observation, documents and interviews with tourists, batik center owners, batik makers, and related agencies. Data analysis uses triangulation. The results of the study show the supporting aspects of tourism, and the characteristics of creative tourism are important factors that need to be considered in developing the potential of batik creative tourism. The Paoman batik center has the potential to become a batik creative tourism destination, but it needs further development of authentic tourist experiences, active involvement of tourists, participatory learning involving tourists, direct contact with tourists, creating their own products by tourists, and availability of work practices.

Keywords
supporting aspects of tourism, characteristics of creative tourism, identification of potential for creative tourism in batik, development of potential for creative tourism in batik

Topic
Innovations in tourism and hospitality

Link: https://ifory.id/abstract/eYpg9NABdFcK

Corresponding Author
Danastri Parimitha Ruziqna

Institutions
1) Environmental Engineering Study Program, Department of Civil Engineering, Faculty of Engineering, Universitas Indonesia, Kampus UI Depok, Depok 16424, Indonesia

Abstract
Aluminum in water treatment sludge can be recovered as coagulants by acidification method. However, there are some factors that affect efficiency in recovering aluminum, such as stirring speed during acidification, pH, and sludge characteristic. This study aims to find the optimum acidification stirring speed in recovering alum and to evaluate the performance of recovered coagulant compared to pure coagulant. Aluminum recovery is carried out by adding sulphuric acid until the pH of the sludge reaches 2.5. The acidic sludge is stirred for 30 minutes, with acidification stirring speed is varied from 240–720 rpm, and left for settling until the supernatant is formed. The supernatant was used as recovered coagulant, examined using jar test to determine the optimum dose, and compared with the pure coagulant. The results show that the optimum acidification stirring speed was obtained at 540 rpm, where mass balance shows aluminum recovery efficiency of 16.5%. The optimum dose for recovered coagulant was 25 ppm, with turbidity reduction of 93.38% in jar test. While the optimum dose for pure alum was 20 ppm, with turbidity reduction of 93.26%. Though potentially reduced greater turbidity, the recovered coagulant has slightly lower quality than the pure coagulant, which required higher optimum dose.

Keywords
Acidification; aluminum recovery; recovered coagulant; water treatment plant

Topic
Environmental Technology

Link: https://ifory.id/abstract/PwTVvjEtBqK7

Corresponding Author
Rinda nurul Karimah

Institutions
1Health Department, Politeknik Negeri Jember
2Departement of Information Technology, Politeknik Negeri Jember

Abstract
Abstract. Banyuwangi is one of the Regencies under National Priority Rural Area. The potential being developed by Banyuwangi Government is the development of tourism village by exploring its resources. Tamansari village, Licin district has become the best tourism village on the category of business network utilization. Several obstacles were found along with the increase on number of tourists, tourists- activities and insensitivity of its community to change: 1) littering on the road, river at ecotourism location 2) lack of environmental cleanliness as wastes were at large volume 3) cleanliness at ecotourism location was not maintained 4) waste transported to landfill did not run well 5) environmental pollution due to community-s behavior that stored wastes in excavation of soil pit 6) odor pollution and diseases 7) lack of knowledge and skill in processing wastes 8) the village potential has not been utilized to improve its economic growth. In overcoming these problems, creative industry on labor-intensive referring waste processing and management was established through technology product activities disseminating to community. Waste processing was done by converting organic wastes to compost through aerated static pile system which was useful for coffee plant and flower cultivations. Plastic wastes were processed into high-quality paving blocks; and some were processed into semi-raw material for plastic processing industry/collector.

Keywords
organic waste, plastic waste, compost, paving blocks, integrated waste processing, creative industry

Topic
IT for Agriculture

Link: https://ifory.id/abstract/HrAFdJPUkza3

Corresponding Author
Dwi Putro Sarwo Setyohadi

Institutions
a)Information Technology Department, State Polytechnic of Jember, Indonesia
b)Marine Electrical Engineering, Shipbuilding Institute Polytechnic of Surabaya, Indonesia

*dwi.putro[at]polije.ac.id

Abstract
Improving production system quality, especially in the efficiency of coal combustion, is a must to optimize the electric energy production of a power plant. To maintain customer trust, towards an international standard distribution process, it needs innovation in combustion monitoring. Overheating conditions frequently occur and could break the camera due to limited information on combustion temperatures received by the user. From these problems, this study aims to design a classification system for monitoring the combustion process in the boiler or furnace. Combustion area captured by the Adafruit AMG-8833 IR camera and continued with the extraction and segmentation of thermography analysis and neural network (NN). This study utilizes the features of temperature conversion in each image segment in the form of HSV (Hue, Saturation, Value). Hue parameters (H) and value (V) parameters are used in the classification process for its large degree of red to green differences with a significant range at each temperature. Those parameters are the input of the Artificial Neural Network along with the average & overheating temperature as the classification target. The average error of this system is 0.08559% for the image classification with training data of 64x45 inputs, 16 neurons, and the best performance at 10th repetition.

Keywords
Boiler Furnace, overheating, IR-Thermal camera Adafruit amg-8833, thermography analysis

Topic
Renewable and Novel Energy Sources

Link: https://ifory.id/abstract/wAa9Nr4R3ej6

Corresponding Author
I Putu Dody Lesmana

Institutions
Politeknik Negeri Jember

Abstract
This article presents implementation and assesment of food safety system in a small dairy plant located in Kaligondo Area, Banyuwangi, East Java, Indonesia. A small dairy plant has developed by two groups of dairy cow farmers, Sumber Lumintu and Sido Makmur, and produces pasteurized fresh milk and its derivatives. There are some steps to implement food safety system including a diagnosis of prerequisites based on BPOM requirements, implementation of good manufacturing practices (GMPs), sanitation standard operating procedures (SSOPs), and hazard analysis and critical control point (HACCP). Assessment results of initial diagnosis showed that conformity of 59 items observed achieved 76,1%. GMP, SSOP, and HACCP had met requirements for Kaligondo dairy plant. However, the main difficulties encountered for the implementation of food safety system were related to the implementation of actions established in the flow chart and to the need for constant training/adherence of the workers to the system. Despite this, the implementation of the food safety system was shown to be challenging, but feasible to be reached by small-scale food industries in Kaligondo area.

Keywords
GMP, SSOP, HACCP, CCP, BPOM

Topic
Food Safety

Link: https://ifory.id/abstract/x8BVDycMudL7

Corresponding Author
Arif Hidayat

Institutions
Universitas Muhammadiyah Metro

Abstract
This study aims to determine the ability of the brain in elementary school children. This type of research is experimental research. This application user is a class teacher once a primary school student facilitator. It is very natural for teachers to want their students to grow up to be healthy, intelligent, clear-minded, and noble children. Classroom learning by the teacher is like a thought process or in other words, is the process of using and using the brain optimally. The human brain consists of two parts, the right brain, and the left brain. Each hemisphere has specialized in certain abilities. The thinking process of the left brain is logical, sequential, linear, and rational. This side is very regular. Although based on reality, the left brain is able to carry out abstract and symbolic interpretations. The way of thinking is appropriate for regular tasks of verbal expression, writing, reading, auditory associations, placing details and facts, phonetics, and symbolic

Keywords
Expert System,Brain Capability Identification

Topic
Information Engineering

Link: https://ifory.id/abstract/7LkuWzUy42JM