bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of correlation between urban heat islands (UHI) with land-use using sentinel 2 time-series image in Makassar city
Authors: Rauf S , Pasra M M , Yuliani
Published: February 2020

In this study, to analyze the value of the correlation between Urban Heat Island and land-use variables. Y variable used is temperature and some variables X in the form of land use variants, namely road network area (km2), population density / ha, building area (km2), and image index data from sentinel2 and Landsat 8 time-series images in the form of satellite image index namely the normalized difference vegetation index (NDVI), the Normalized Difference Water Index (NDWI) and Moisture Indices (MI) in Makassar City. The method used in this study is the Pearson correlation coefficient to determine the variables that influence the increase in Urban Heat Island in Makassar City. Based on the results of the correlation analysis obtained, variables that influence Urban Heat Islan are Moisture Indices (MI), which have a significant correlation in increasing Urban Heat Island, where the correlation value between temperature and Moisture Indices (MI) is R = - 0.766. Another variable is the road area, where the correlation value R is - 0.655.
Design principle of evacuation route for the pedestrian during a flood event in Borgo village
Authors: Makalew F P , Mandang D J F
Published: February 2020

Flooding in the riverfront area is a danger for pedestrians without appropriate information and facility during the event. This research aims to analyze the principle design of the evacuation route for the pedestrian in Borgo Village. This village is located in Minahasa regency, North Sulawesi Indonesia. Many experiences of flooding followed by a landslide, Borgo Village has faced many destruction and victims during such an event. Therefore, creating a principle design can help improve access for evacuation for the pedestrian. The method of this research is field study with record area using photos and videos. Interview with the community in the area is conducted to support field data. Potential identification data is used to establish an area of evacuation and safety temporary location during evacuation. The result shows that several factors need to be implemented in the region. Such the factors are access from the river to the temporary evacuation building or area. The other one is the symbol and sign of evacuation that needs to be installed to the location, and the facility for the pedestrian pathway need to be constructed based on the standard design. Lastly, regulation for building setback in the riverfront area need to be applied to improve the city for water flow during flooding and flash flooding. There should be more attention to activity in the area as well as understanding land use for the riverfront and other waterfront areas for future research.
Friendliness of route along the home-school journey for less privileged children in old city zone of Makassar
Authors: Asrun A M , Said I , Rusli N
Published: February 2020

The home-school journey is a part of less privileged children’s daily routine in Makassar. Children’s repetitive engagement with elements of the street environment contributes to their growth and development. This study determines the actual friendliness of route for less privileged children along their homeschool journey that lead them to perceive the street as their play space. Participatory observation and behavior mapping were conducted to 10 less privileged children, aged 9 to 11. Their movement, social play, place of visit and preferred route were elicited during their journey from home to school and back. The site was a neighborhood in the old city zone of Makassar. The data was analysis using GIS heat-map. It is found that less privileged children perceive the home-school journey as a route to reach their school as well as a place space especially coming back from school to home. Utilized and shaped affordances of school to home journey were more than those gained from home to school. Boys practiced a longer journey than girls on their way back from school to home. It means that the geography of less privileged children at urban street generates spatial skill through social play.
Model of logistic transport distribution in the urban area
Authors: Putra A A , Magribi L O M , Sharly T , Ngii E , Sukri A S , Sukri A S , Balaka R , Azikin T , Lawalendo  , Sriyani R , Makmur M
Published: February 2020

Logistics Transportation in supporting Logistics movement in urban areas has very limited space for certain road segments, especially for large trucks and container vehicles. The limited space of movement will determine the effectiveness and efficiency of Logistics transportation itself. Logistics travel from to and from trading locations, finally reaching consumers is not a simple matter, but is influenced by the various chain of movements that affect costs, time, security and safety. The factors that influence the pattern of distribution of freight transport in Kendari City, Types of modes of commercial goods transportation, Road networks and supporting infrastructure, Land use Patterns.
Study of HRS-WC mixture performance using the waste of crude palm oil ash as filler
Authors: Daud  , Rachman R , Tanijaya J
Published: February 2020

Filler has an important role in the HRS-WC mixture besides aggregates and asphalt due to its functions to fill the void in the asphalt mixture so that it could produce more friction resistance and high interlocking aggregate. The use of filler in the mixture is limited in number because too much filler will lead to the stiffer and easily cracked mixture. On the contrary, the lower values could lead to the easily deformed and too flexible mixture. Previous researchers have studied the use of the waste of crude palm oil (CPO) ash as a filler. This research aims to study the performance of the HRS-WC mixture using CPO ash as a filler. The asphalt content used was 5.9%; 6.33%; 6.75%; 7.18% and 7.6%, while the proportion of CPO ash waste is 0%, 25%, 50%, 75% and 100%. The mixture gradation is made using a gap-graded and half gap-graded mixture. The results showed that the stability is higher when 25% of CPO ash proportion is used, but it is decreased again when the proportion is larger than 25%. The use of a small asphalt content will increase the value of VIM. The flow value decreases when 32% of CPO ash proportion is used and increases again over the use of 32%. The use of a large amount of CPO ash filler in the mixture will increase VMA. While the VFB will decrease if the larger amount of CPO ash is used. The immersion index of the mixture can still be maintained even when the use of CPO ash is increased. The use of CPO ash as a substitute for filler in the HRS mixture - WC must be balanced with the increasing of asphalt mixture.
Walkability index of real estate housing in Makassar
Authors: Arifin M , Rasyid A R , Osman W W
Published: February 2020

Makassar is considered a metropolitan city with about 1.469.601 residents. Therefore, there is a need to upgrade quality, especially the basic needs. The desire to make the city world-class should be a motivating factor towards quality improvement. Walkability Index (WI) is used as an indicator for implementing sustainable development of infrastructure in the era of industrial revolution 4.0. This is the reason why the study about the walkability index of Real Estate housing in Makassar was important to be conducted. To be a livable city, Makassar needs to have pedestrian infrastructure bolstering the mobility of its citizens. This study, therefore, was meant to determine the extent of Real Estate housing in Makassar as supported by pedestrian pathways and Walkability Index. Both Quantitative and qualitative methods with spatial analysis and Walkability Index were used. The result showed that only 9 (3%) out of 272 housing had pedestrians while 97 % had no pedestrian. From 9 housing, 5 were considered very good housing, 2 quite good, and 2 worst. The walkability Index had an average score of 54.55, indicating it was good for pedestrians.
A Study on-resistance characteristics and turbulent structure properties of hyper-concentrated sediment-laden flow
Authors: Hendratta L A , Sukarno  , Ohmoto T
Published: February 2020

Sediment laden flows of high density occur in most natural environments in the world. A certain amount of particles in hyper-concentrated sediment-laden flow plays an important role and has a great effect on the behavior of the flow. Significant erosion and siltation associated with hyper-concentrated floods give rise to many problems. Mudflows that contain large concentrations of clay particles suspended in water are considered to have non-Newtonian hydrodynamic properties but remain largely unknown. In this experimental study, the flow field over a square ribs roughness in an open channel was investigated in detail through comparison with clear water flow by using sodium polyacrylate (PSA) solutions that have viscosity characteristics similar to those of hyper-concentrated sediment-laden flow and applying PIV (Particle Image Velocimetry) measurement system to current meters. The experimental results stressed that the total resistance coefficient for the highly viscous PSA solution reached a maximum of 1.76 times the total resistance coefficient in clear water due to the shear-thinning effect of a non-Newtonian fluid.
Development of flood forecasting model and warning systems at Way Ruhu – Ambon
Authors: Marasabessy M , Pallu M S , Lopa R T , Thaha M A
Published: February 2020

Way Ruhu has a river with the slope of the land is steep. The heavy rains that often occur in the city of Ambon resulted in floods and landslides in several places thus to give a big loss to the people in the city of Ambon both the loss of property and lives. This study was conducted with the aim to determine the magnitude and time of flooding in the Way Ruhu watershed, the modeling results will be applied in android so that people can evacuate early because information can be received more quickly and the Government can prepare better mitigation programs. Modeling methods are carried out using 2D software HEC-RAS 5.0.7 which requires hydrological and topographical data as the main inputs. The output from HEC-RAS is a flood map, flood height, and duration of the flood. The results of this study indicate that the time between the upstream river rise and the arrival of floodwater in the downstream is less than one hour, with flood characteristics as high as 1-5 meters and receding within 4 to 11 hours.
Distribution pattern of water salinity analysis in Jeneberang river estuary using ArcGIS
Authors: Bakri B , Sumakin A , Widiasari Y , Ihsan M
Published: February 2020

Interaction between freshwater and saltwater is a natural phenomenon in river estuaries, with no exception for Jeneberang estuary. This interaction will affect the distribution of salinity. Due to the difference in the density of saltwater and freshwater, blending will occur in between the two types of fluids. In another perspective, the existence of a driving factor such as the tidal routines affects the level of salinity. The purpose of this research was to describe the distribution of salinity at Jeneberang River Estuary both on high and low tide conditions. The results show that the salinity in Jeneberang River estuary in high tide conditions is distributed to distance as far as 2.63 km from the mouth of the estuary, while at low tide conditions the distances reach 2.12 km to the upstream. The salinity would decrease in line with the increase of the distance towards the headwaters of the river. The Salinity would also decrease in the same trends with increasing distance towards the surface of the river. While the value of salinity between the high tide and low tide is not too significant at depth of 0.8H. This is caused by the difference in the depth of the River at each point of sampling and a low stream at low tide conditions, so that the salt sediment washed from the sea at high tide did not return at low tide. Based on water classification, the kind of water in the Jeneberang River estuary could be categorized as freshwater to brackish.
Evaluation on sabo dam construction planning Matakabo River at East Seram island
Authors: Malik R , Pallu M S , Thaha M A , Hatta M P
Published: February 2020

The Matakabo River is one of the major rivers in Maluku Province that crosses the Eastern Seram Regency. The Matakabo River is currently used for the Matakabo Irrigation Area through Matakabo Weir, with an area of + 3,050 Ha. Considering the number of tributaries entering the Matakabo River system and the risk of changes in land conversion in upstream, the development of Sabo Dam is seen as crucial for securing the water supply to irrigation as well as functioning as flood control. The location of 6 Sabo Dam is in Wai Sop, Wai Mol, Wai Sol, Wai Bemis, Wai Jana, and Wai Ines areas were based on visuals in the field where these areas are vulnerable to erosion and sedimentation. The calculation of flood discharge uses two methods, namely Nakayasu and ITB. Based on the highest river flow and flood capacity in the Q2: 401.68 m3 / second field which is close to the results of the synthetic discharge calculation from the ITB Method. Evaluation of 6 Sabo Dam with 1 Groundsill in Matakabo based on the calculation of the Van Rijn and Meyer Peter Muller (MPM) method will be able to accommodate sediment beds and suspended load around 1,275,958.63 m3 / year or around 0.581 mm / year. With 6 unit additional Sabo Dam locations (vol: 9,563,750 m3) equipped with groundsill, the estimated useful life of the river will not be disturbed by the sediment for about 7.5 years.
Feasibility evaluation of water supply infrastructure in Luwuk district
Authors: Fatahuddin S , Selintung M , Bakri B
Published: February 2020

Water is an essential factor in determining human needs. Society has increased or not in a city or region can be seen from the availability of clean water that available whenever we need it. Provision and development of clean water is an activity directly related to one of the basic needs of the community. The availability of clean water is a necessity, which, if neglected, will have a significant effect on the sustainability of human life. Clean water infrastructure functions to empower water resources for the community. The availability of adequate and enough clean water infrastructure has a significant influence on clean water services. Luwuk District receives a clean water supply from the PDAM sourced from the water treatment plants (WTP) of Keles and WTP of Mangkio. This study aims to (1) Analyze the existing conditions of the clean water infrastructure of Luwuk District, (2) Evaluate the performance of the clean water infrastructure of Luwuk District. The object of research is the PDAM clean water infrastructure. The results showed that the physical condition and performance of the WTP Keles clean water infrastructure was not good while in Mangkio was quite good. It is necessary to have regular and periodic maintenance of the clean water infrastructure in the two water treatment plants to maintain the continuity of the existing infrastructure and maximize the economic life of the support in supply the freshwater needs of the community. The first section in your paper
Stability of breakwater armour using rock pockets on transition wave
Authors: Rohani I , Thaha M A , Hatta M P , Paotonan C
Published: February 2020

Breakwater, which is one of the coastal protection systems that is often used in Indonesia, has a major component of the armour/protection layer. Breakwater armour on the coast has three possibilities for wave attack, are shallow waves, transition waves, and deep waves. Using rock pockets as armour in transition waves has significant characteristics and influences on the coefficient of damage value. This study aims to obtain the Coefficient of damage breakwater armour using rock pockets in transition wave conditions. This research is experimental with physical tests conducted in the 2-D wave channel at the Laboratory of Marine Engineering, Faculty of Engineering, Hasanuddin University. Making with several waves, and weight of armour configurations. Transition waves are obtained by plotting and eliminating the wave classification graph. The scale model used is 1: 10, with three water depth variations, are 25 cm, 20 cm, and 15 cm. The results showed that coefficient of damage armour at the end (head) of the breakwater for the transition wave for slope device 45˚, coefficient of damage value is 3.92, at the slope device 60˚ Coefficient of damage value is 4.52.
Stratification model of seawater mass structure at the estuaries of Jeneberang River and Tallo River and the influences to current pattern in Makassar coastal areas
Authors: Karamma R , Pallu M S , Thaha M A , Hatta M P
Published: February 2020

The influences of periodically continuous tides and river discharges flowing from upstream will be responded by basic morphological form and geometry of estuaries and resulting in current pattern in estuaries. The current induced by tidal effect creates turbulences in estuaries which influence the change of configuration of stratification of seawater mass structure and suspended sediment. The intrusion of seawater from estuaries upstream in Jeneberang River and Tallo River will affect the pattern of water mass mixing which later generate patterns of current and sediments on the river. Mathematical model is a useful method to predict structural stratification of seawater mass flowing from estuaries upstream. The stages were to develop mathematical model of tidal current and mathematical model of water flow downstream.
The prediction of flood damage in coastal urban areas
Authors: Pariartha G , Goonetilleke A , Egodawatta P , Mirfenderesk H
Published: February 2020

The increase of impervious surfaces in the urban area triggers a flood. A flood occurs area with a dense population that will result in a lot of damage. The flood simulation itself is not adequate to calculate the flood damage, as it only shows the flood depth and extent. It needs the capability of mapping software to map the vulnerable area. Accordingly, the research study’s aim is to propose the methodology to predict the flood damage on the coastal urban area by combining the flood simulation model with GIS mapping software. MIKE FLOOD and ArcGIS were used to represent the flood simulation model and mapping software. The flood depth and inundation area were calculated with MIKE FLOOD; meanwhile, the residential house was mapped using ArcGIS. Both of MIKE FLOOD and ArcGIS were then combined to obtain the flood depth in each residential house. Moreover, to value the flood damage in monetary terms, the depth-damage curve and average house prices were applied. The result shows that the majority of the inundation caused by riverine flood and coastal area is the place where the largest inundation area occurs. As the flood appears in a residential area, the flood damage of the residential building in terms of annual average damage (AAD) was obtained with the amount of $8,716,227.67 calculated from six AEPs (50%, 20%, 10%, 5%, 2%, and 1%).
Type of mixing confluence between Mahakam and Karang Mumus Rivers based on temperature and salinity distribution tidally
Authors: Nur A , Suriamihardja D A , Thaha M A , Hatta M P
Published: February 2020

Observations of physical oceanographic parameters including temperature and salinity were carried out in Estuary Mahakam and Karang Mumus Rivers, on July 8, 2018, and July 14, 2018, to determine the vertical distribution patterns of temperature and salinity used to identify the type of estuary confluence Mahakam and Karang Mumus Rivers. Observations were conducted at 9 points and 11 points when the neap tide and the spring tide conditions were in the estuary area to enter the Karang Mumus river at the surface, middle and bottom layers. Temperature and salinity parameters were measured using the CTD Minos sensor system equipment. X PDC-B0900 which can simultaneously record profiles of temperature and salinity parameters lowered to the bottom of the water while the point position was determined using GPS. The results of the observation of temperature distribution showed that in the Estuary between Mahakam and the Karang Mumus Rivers did not have a thermocline layer. This was because of the depth of the water under study including shallow water. Salinity distribution was obtained with a relatively homogeneous salinity towards depth water. Homogeneous salinity is an indication of a well-mixed vertical process between seawater and freshwater.
The effect of channel roughness to the flow velocity (Case Study: secondary channel of the Saddang irigation area, Pinrang Regency)
Authors: Syamsuddin S G H , Maricar F , Lopa R T
Published: February 2020

The channel roughness phenomenon can result in changes in flow velocity. The research is aimed to analyze the magnitude of the speed of the flow that is made out of some roughness channels are different. Research is carried out in line Secondary Regional Irrigation Alitta village Bentenge Subdistrict Paleteang district Pinrang. Channels that are reviewed are the channel secondary which is made of some roughness channel are different by opening the doors as deep as 20 cm, 30 cm, and 40 cm. The results of the study indicate that happens changes the speed of each roughness channel. It is caused by the difference in the roughness of each channel and the sedimentation of each channel.
Activity-based – risk breakdown structure as an initial stage in formulating OHS unit cost analysis in the construction project
Authors: Kusumo E , Arifuddin R , Latief R U
Published: February 2020

Implementation of occupational health and safety in a construction project must be applied, referring to existing regulation. Previous research indicates that budget planning is one of the most basic aspects of OHS implementation problems in a construction project. Effective approach to formulating appropriate OHS cost models still needs further effort. This research tries to develop an activity based-risk breakdown structure as an initial stage in formulating the OHS unit analysis model based on the existing unit cost analysis model referring to Regulation of Ministry of Public Work and Human Settlement number 28/2016 about Unit Cost Analysis in Construction Project in Public Work Field. The methodology used in this research is archive analysis and expert judgment on activity based-risk breakdown structure analysis using HIRADC (hazard identification risk assessment determining and controlling) theory that attached to the workers and the project method used in each work unit. This research tries to deliver a simple job risk analysis method as an initial stage in formulating a reference for making a cost safety analysis formula in a construction project.
Performance evaluation indicators for implementing occupational safety and health management policy in small qualified construction services business entities
Authors: Prasetio R H , Arifuddin R , Maricar F
Published: February 2020

One of the successes of a construction operation is determined by the service provider as the executor of construction activity so that the competency of the service provider will determine the implementation of construction activities. The performance of construction work is said to be good if it meets the time, quality and costs following the contractual agreement that has been agreed with the service user. The Occupational Health and Safety Management System is one of the determining factors in construction work that is still not considered by a Construction Services Business Entity in Indonesia. Existing regulations and laws have heavily regulated performance appraisal indicators related to the implementation of the Occupational Health and Safety Management System. This study tries to look at the effect of the assessment indicators on the implementation of the Occupational Health and Safety Management System that has been regulated in existing regulations to small business entities to be able to see the effectiveness of existing regulations and can be input to existing regulations related to the assessment of construction services small qualification construction services business entity.
Analysis of effectiveness aeration time with biofilter and ras combination systems on bulking parameters
Authors: Mursalim I A , Pallu M S , Selintung M , Rahim I R
Published: February 2020

One of the environmental pollution of the waters is caused by the disposal of industrial liquid waste that has not been treated properly. The solution to overcome this problem is controlling the processing of industrial wastewater to produce a good effluent, secondary treatment is the heart of wastewater treatment. The problem that often occurs is bulking. Various research books have been done. One of the previous studies by Aryani M.I (2004))[1]. The optimal aeration time is 3 hours to eliminate bulking of mixed liquor caused by S.Natans bacteria. This research is a continuation of research and aims to analyze the effectiveness of aeration time with a combination of biofilter systems and variations of Return Activated Sludge (RAS) against the bulking parameters. The method used is an experimental method in the laboratory. The research design uses a completely randomized design. The test that will be carried out is a time test for giving aeration to find out the optimal time in handling bulking with a combination of biofilter systems and variations in the Return Activated Sludge (RAS) against the bulking parameters namely SVI (Sludge Volume Index), DO, MLSS (Mixed Liquor Suspended Solid), BOD, pH & Temperature. The expected result is optimal time effectiveness with a combination of biofilter systems and Return Activated Sludge variations on bulking parameters to handle bulking.
Study of noise level at roundabouts in Maminasata area
Authors: Hustim M , Ramli M I , Nabila M F
Published: February 2020

The rapid growth of a country affects one of many fields, such as transportation, which is important for development and as public facilities. This research was conducted at the Mandai Roundabout, Riburane Roundabout, and the Samata Roundabout. This study aims to analyze the noise level at 3 observation points, as well as noise prediction by using the CoRTN method (Traffic Noise Calculation) based on Vissim Software in 2019-2023. Data collected for 12 hours from 07.00 until 19.00 by taking samples for 10 minutes per hour using the Sound Level Meter (SLM) type TM-103. While for the prediction results, the number of vehicles and vehicle speed are used. For vehicle speed predictions, the number of vehicles are added by 7% per year then run the program Vissim. The results are divided into 3 locations, the Mandai Roundabout about 76.21 dB; Riburane Roundabout about 75.82 dB; and the Samata Roundabout about 80.09 dB where the noise level is higher than the standard from government, Minister of Environment No.48 on 1996 which stated the standard for noise level in trading and service area is 70 dB. The estimated result based on the CoRTN model on the roundabout in the Maminasata area using the Leq formula is 73.47 dB for the Mandai Roundabout; 70.07 dB for Riburane Roundabout; and 73.40 dB for the Samata Roundabout. There has been a difference in predicted results from 2019-2023. In 2019 there has been a difference of about ≥ 3 dB, which is 4.1 dB at the Mandai Roundabout so that improvements need to be made to this region.
The reduction of heavy metals Cd and Cr levels in wastewater using bagasse charcoal as an adsorbent
Authors: Selintung M , Mangarengi N A P , Zubair A , Sulviani
Published: February 2020

The utilization of charcoal from bagasse as adsorbent is an alternative way to reduce heavy metal of Cd and Cr in Wastewater. Bagasse is one of the agricultural wastes that potentially obtained with an abundant amount. This research aims to identify the full time and the adsorption capacity of charcoal with a continuous column method and downflow. Activation of charcoal used is Chloride Acid 2N in 24 hours soaking. Metal solution concentration of Cd and Cr were 2 ppm and 5 ppm, respectively. The results of this study are that full time for charcoal for Cd occurred on minutes of 480 for 2 ppm and minutes of 300 for 5 ppm. Meanwhile, saturated time for Cr occurred on minutes of 360 for 2 ppm and minutes of 240 for 5 ppm. The significant efficiency of metal ion adsorption to Cd concentrations for 5 ppm and 2 ppm were 28,05% and 26,75%.
Application of principle component Analysis in differentiating the three types of Amaranthus based on their photoperiodic flowering response
Authors: Andini R , Sulaiman M I , Moulana R , Hmon K P W , Ohsawa R
Published: February 2020

Response of flowering has become an attracting field for plant breeders and is pre-requisite in plant introduction process from different ecogeographical origins. Time of flowering is mostly induced by the day-length or photoperiod and temperature. Amaranth (Amaranthus sp.) is known as multipurpose plants and utilized as grains or as vegetables. Under tropical environment, likewise in Indonesia, the requirement of day-length to induce flowering in amaranths is unrevealed as the day-length remains always constant with approximately 12 hours per day. During the introduction of amaranth to Japan, we would like to confirm the type of amaranth, which in general has been theoretically classified as short day plants. Under the variation of day-length ranging from 9 up to 15 hours during the four seasons in Japan, thus, we confirmed that amaranth as short day plants. Although, the vegetable ones required day-length up to 12 hours. Such conclusion was obtained from the flowering response of 69 accessions representing amaranth’s eco-geographical variations within two consecutive years. Seeds were sown in two replicates. Plant nursery was conducted on the Norin-Ijutsu Centre belongs to the University of Tsukuba. Mean values from two replicates were obtained and the average was then further subjected to Principle Component Analysis (PCA) [JMP ver. 7.0 (SAS Institute, USA)]. Thus, PCA was able to differentiate the flowering tendency within the three types of amaranths in the form of three ellipsoids.

A post-publication change was made to this article on 11 Mar 2020 to correct the conference title in the PDF header.
Study on the impact of the existence of drinking water plant on the water availability in Kebonpeuteuy village (study in Kebonpeuteuy village, regency of Cianjur)
Authors: Abdurrahman F , Muhammad A , Ihsan M , Karebet W
Published: February 2020

Kebonpeuteuy Village is located at the foot of Mount Gede Pangrango. The existence of a Bottled Drinking Water Plant in this region raises a crucial issue dealing with the decrease of clean water supplies for the villagers, especially in hamlet 1. This study produces a number of confirmations: (1) during this time the distribution of the availability of clean water in this village has been ensured with a reservoirs system or water tanks and pipelines; (2) the existence of this plant does not have a direct influence on the sustainability of clean water availability in this village because the plant only takes ground water instead of surface water; (3) there is a significant change related to safeguarding the sustainability of the availability of clean water after the application of the recommendations from LKMM research, in the form of making water banks, planting trees along the watershed, making bio-pores and several other infiltration wells; and (4) related to the status of the operation of the drinking water business according to Islamic law, the drinking water plant only takes ground water from a depth of 60-90 meters and does not obstruct the rights of other parties who also want to access the groundwater source in other locations. For this result, it is recommended that the involvement of all village development stakeholders, including the educational institutions and drinking water plants to educate all the villagers to strengthen the independent mental attitudes, self-assessment capabilities and problem solving so that the availability of clean water can be carried out independently. Especially, the plant managers of the drinking water are required to increase transparency in the groundwater extraction process to settle the issue of the exploitation of surface water by the drinking water plant and to prevent the emergence of things considered counterproductive from the community.
Potential and opportunities for utilization of crown flower plants (Calotropis gigantea) in Dusun Bunot Desa Alue Naga Kecamatan Syiah Kuala Banda Aceh
Authors: Akhir J , Tarman A
Published: February 2020

The community of Dusun Bunot, Desa Alue Naga, Kecamatan Syiah Kuala, Banda Aceh Indonesia, considers the crown flower plant with the Latin name “Calotropis gigantea” which is known as “Bak Rubee” as weeds. These plants spread from the coast, garden fields, to the road, flourishing around 80% on vacant land. This study aims to determine the potential and utilization of crown flower (Calotropis gigantea) in Dusun Bunot. This study used a survey method with closed questionnaires totaling 6 questions studied on 10 respondents or around 15% of the number of family heads. The data obtained were analyzed descriptively and displayed in the form of table data with pie charts. The results showed that as many as 100% of respondents knew of this plant, as many as 80% of respondents knew there was a benefit, as much as 60% of respondents said that there were parts of plants that were liked by goats, although 70% of respondents knew the benefits of drugs in plant parts, but as much as 100% stated that the existence of this plant was felt as a pest, then the rate of growth of the growth around 7 days after cutting the base was able to grow again, so 100% of respondents answered the growth of crown flower fast category. In conclusion, crown flower is very potential and useful as a medicine and has the potential to be used as an additional source of income for residents of Dusun Bunot.
Consumers purchasing decisions on local and national retail bakery products based on price
Authors: Nilda C , Erfiza N M , Yasqi M F
Published: February 2020

Purchase decision is the thought process that leads a consumer from identifying a need, generating options, and choosing a specific product and brand. One of the important factors in the decision to purchase a product is the price. Price is the amount of money needed to get some combination of goods along with services. The purpose of the study is to know the influence of price towardsthe consumers decision purchase of local and national retail bakery products. The population of this research are undergraduate students who are active in Universitas Syiah Kuala. The samples are taken 374 students based on systematic random sampling method. Linear regression analysis technique is used to get result. The results showed that price effect significantly to the purchasing decisions of packaging bread. The magnitude of the influence of these variables about 42,6%.
Consumer shopping behavior through online store for food and beverages
Authors: Wahyudin M , Azali F Nahar
Published: February 2020

The new behavior has emerged in the era of information and digital communication. it covers many aspects of life, including sale and purchase transaction. Currently, shopping activities are no longer done by going directly to the seller in order to get the products we need. it is also very rare for the consumer to use cash for the payment. they can hold the sale and purchase transaction whenever and wherever it is needed by utilizing an application which is available accessed by mobile phone. This study has involved 209 respondents who were actively engaged in shopping activities through online stores. from those 209 respondents, there were 21% respondents stated using an online store to buy daily needs, and the one which is more interesting is there are 30.47% of respondents said that they ever bought food and beverages by online store application. These indicated that consumer shopping behavior for food in the era of information and digital technology became a new-interesting trend to be further observed and researched.
Optimizing the sterilization process of canned yellowfin tuna through time and temperature combination
Authors: Anwar S H , Hifdha R W , Hasan H , Rohaya S , Martunis
Published: February 2020

Differences in can dimension, filled volume and type of sterilization equipment affect the heat penetration rate, temperature and time required for sterilization process in canned food. Thus, careful calculation and decision for those factors are critical to determine the final product quality. Therefore, this research aimed to investigate the quality of canned yellowfin tuna in a specific can dimension using a 24 L pressure canner by applying different time and temperature combination i.e., sterilization at 121°C for 20 minutes and at 115°C for 50 minutes. Two type of mediums used were palm oil and brine. Heat penetration study and calculation of sterilization time (Fo value) were conducted using thermocouple data logger for both methods. The results showed that the protein content decreased slightly from 24.6% (fresh tuna) to 23,57% (canned tuna sterilized at 121°C for 20 min) and to 13,31% for canned tuna sterilized at 115°C for 50 min. There was a sharp increment obtained for fat content of canned tuna in palm oil (0.54% to 10.6%). Heat penetration study indicated that the Fo for canned tuna in brine were longer (30.13 minutes) than tuna in oil (20.09 minutes). This research suggests that sterilization of canned tuna is recommended to be done at 121°C for 20 minutes with regards to the nutritional content of the final product, particularly the protein content.
Quality assessment of chilies (Capsicum annuum L.) by using a smartphone camera
Authors: Khuriyati N , Nugroho D A , Wicaksono N A
Published: February 2020

This study aims to determine the image parameters that can the chili quality and arrange the best Artificial Neural Networks (ANN) architecture in order to classify the quality into several groups. The image was taken and analyzed by means of image processing and ANN. Samples of chilies were divided into 2 groups, 75% for training data and 25% for network testing. The sample was placed in a black box and the image was captured using smartphone camera for both sides. The sample image was converted to binary to get the color value. Value color of image processing results using Matlab were used as input parameters for color group identification of ANN. Subsequently, color used as variable for classification using ‘if then’ logic. The results showed that the color elements of the image that could be the quality identity of chili were red, green, a*, and intensity. The ANN input layer that consisted of 4 input cells, 9 hidden layer cells, and 1 output layer cell could classify chilies into 4 color groups i.e.green, tinge of red, red and dark red with an accuracy of 90.43%.
Chemical profiling of western Indonesian single origin robusta coffee
Authors: Marsilani O N , Wagiman  , Sukartiko A C
Published: February 2020

The majority of coffee plantations in Indonesia is dominated by Robusta coffee. Some of them have a distinctive quality with a strong relation to their origin, in which the coffee has been cultivated. These are known as single-origin coffee. Most of the coffees are produced in the western part of the country. This study aimed to profile the chemical quality parameters of robusta single-origin coffee in the western part of Indonesia. Green coffee bean from various regions of the western part of the country, namely Empat Lawang, Menoreh, and Gunung Kelir, which were cultivated at various elevation ranges, were collected and analyzed in their chemical quality parameters such as caffeine, sucrose, total fat, and fatty acids. ANOVA was then performed on the collected data, and the results are discussed in this paper.
Production cost approach and material flow cost accounting as a step towards increasing responsibility, efficiency, and sustainability (RES): the case of palm oil mill in Banten Indonesia
Authors: Kurniawan M P , Guritno A D , Purwantana B , Supartono W
Published: February 2020

Based on Indonesia Program for Pollution Control, Evaluation and Rating (PROPER), palm oil industries are more likely to care about hazardous waste management rather than resource efficiency. It is very important to balance and achieve economic and ecological targets by identifying material and energy inefficiencies with significant economic impact. The application of standard and sustainable production also plays important role for oil palm companies which so far have more than 70% of biomass energy materials such as shells, powders, fibres, and dried empty bunches. This study used the production cost approach and material flow cost accounting to reduce material consumption and waste minimization. Identifying resource efficiencies were used to determine area for improvement. The results show that palm oil company more likely to manage total waste, hazardous waste, and raw materials consumed than material efficiencies. In terms of financial factors, cost ratio and profitability are likely to affect firm decisions regarding to manage the material flow for reducing hazardous waste ratio. This could support long-term business relationships which can be established and negotiated between the palm oil industry as organic waste supplier and the bioenergy producer, revealing economic and environmental benefits for both actors while contributing to the development of responsibility, effectiveness and sustainable (RES).
Increasing of rumen fermentation products and digestibility of diets through urea-zeolite supplementation in-vitro
Authors: Bata M , Rimbawanto E A , Rahayu S
Published: February 2020

The aim of this study was to find the optimal level of urea-zeolite supplementation in the substrate on rumen fermentation products and digestion in vitro. Testing the solubility level of urea-zeolite at a ratio of 1: 1 and 1: 2 in rumen fluid based on N-NH3 levels was carried out at the fermentation time of 0, 1, 2, 3, 4, and 5 hours. Completely randomized design was used in this research with urea-zeolite supplementation treatment (0.2, 4, 6, 8, and 10% of dry matter (DM) substrate). Substrate composed of corn sugarcane silage and concentrate with DM ratio was 70%: 30%. The variables measured were rumen fermentation products (pH, VFA, and N-NH3), DM and organic matter (OM) digestibility. The results showed that the solubility of urea-zeolite in rumen fluid at the same ratio of 1: 1 and 1: 2, the highest at 4 hours fermentation time of 40.81% and 39.13% and after 4 hours was stable. Urea-zeolite supplementation (ratio 1: 2) on the substrate has no effect (P> 0.01) on the pH of the liquid. N-NH3 fermentation products increased (P <0.01) linearly with increasing levels of urea-zeolite supplementation. The total VFA product and the degradation of dry matter were highly significant (P <0.01) influenced by urea-zeolite supplementation and were optimal at 6% and 4% DM substrate supplementation, respectively. DM and OM digestibility was highly significant (P <0.01) influenced by urea-zeolite supplementation and was optimal at the 6% BK substrate level. It was concluded that the use of urea-zeolite as a supplement in the substrate could increase fermentation products and digestibility in vitro
Morphological characteristics and yields of several sweet potato (Ipomoea batatas L.) tubers
Authors: Hayati M , Sabaruddin  , Efendi  , Anhar A
Published: February 2020

This study aims to evaluate certain tubers of new sweet potato clones for their morphological characters of and yield under low input conditions in the middle highland. This study was conducted at Saree, Aceh Besar, the Province of Aceh (485 m ASL) from February to July 2015. The study used a Completely Randomized Block Design of non-factorial with 12 sweet potato clones consisting of nine clones passed by CIP-SEA Bogor, Indonesia (CIP-LSQ, CIP-1945, CIP-MAN, CIP-513, CIP-BDG, CIP-WHI-5, CIP-W86P, CIP-B9, and CIP-204), one national variety (Antin-1), and two local clones (Orange Saree and Purple Saree). The results showed that there were differences in the characters of 12 sweet potato clones in terms of their tuber shapes, skins and flesh colors. Sweet potato tuber shape being studied consisted of an oval, round and long. Tuber flesh color generally was white, cream, yellow, orange and purple. Meanwhile, CIP-1945, CIP-W86P, Local Orange Saree clones, and Antin-1 variety have orange tuber flesh. CIP-WHI5 clone has the highest number of tubers, while CIP-204 clone has the largest diameter and length of tubers, and the highest in tuber yield.
The potency of mushrooms as food alternative in the forest park of Pocut Meurah Intan, Saree, Aceh Besar
Authors: Fitra M A , Thomy Z , Samingan  , Harnelly E , Kusuma H I
Published: February 2020

The research, potential of mushrooms as food alternatives to obtain information about mushrooms species which potentially as food and their nutritional content found in the forest park of pocut meurah intan, Aceh Besar. The research used an exploratory survey method by exploring a lot of mushrooms on each track in the region for collecting mushrooms sample and several physical factors. The nutritional analysis was carried out using Kjeldahl for protein, Luff Schoorl for carbohydrate, soxhlet for fat and gravimetric for fiber, ash and moisture content. Fifteen species of mushrooms were identied as alternative food, but only ve species had been examined for nutrition analysis tests, including Lentinus polychrous, Lentinus sajor-caju, Ischnoderma resinosum, Marasmiellus ramealis, and Thelephora ganbanjun. L. polychrous was contained the highest rate of proteins (6.12%), carbohydrates (10.27%), bers (4.73%) and fat (1.26%). M. ramealis contained the highest moisture content (89.01). The highest ash content (1.63%) was in T. ganbanjun. These ve species of mushrooms were potentially alternative food because they contained a good level of nutritional content and can be used as a cultivation commodity that can improve the economic level of society.
Organoleptic characteristic of goat milk kefir modified by fruity taste to improve early childhood nutrition
Authors: Zuraini  , Indani  , Dzarnisa  , Zaudhatul
Published: February 2020

Research on the use of various fruits (lychees, strawberries, oranges, and grapes) to add nutritional value in kefir was conducted to 28 toddlers in early childhood age 4-5 years old. The study was carried out at Catering Laboratory FKIP Unsyiah, Dairy Science Production Technology and Laboratory and Al-Azhar Kindergarten Banda Aceh, Indonesia. The parameters observed in the first 3 months were to obtain a good kefir product. Data collection techniques used were sensory evaluation (observation test) conducted on 5 panelist and acceptance test (hedonic scale) by 28 toddlers as consumer panelists. Data was analysed using one way ANOVA with a significance level of 0.05. The results of the study based on observational tests by panelist noted that grape flavored kefir (M18) had the following characteristics: color 24.75, aroma 24.25, texture 24.5 and taste 24.25. The results of analysis on consumer acceptance showed that the preferred goat milk kefir was the orange flavored (M16) having an average value of 23.5 in color, 23.25 in aroma, 24 in texture, and 23 in taste. Consistency of fruit flavored kefir product was assessed. Also, based on the syneresis test, the kefir was popular in public especially at early childhood consumers.