bluuebunny/crossref_metadata_2025_split huggingface dataset:
Suitability analysis of scrubland for arabica and robusta coffee plants in Aceh Besar Regency
Authors: Fachruddin F , Fadhil R , Syafriandi  , Dahlan D 
Published: February 2021

Abstract
This study aimed to analyze the land suitability for arabica (Coffea arabica) and robusta (Coffea canephora) coffee in scrubland in Aceh Besar Regency. This was implemented because the potential area of scrubs that were not utilized properly in Aceh Besar Regency reached 2,5330.6 ha. The data used in this study were secondary data and primary data, while data processing techniques were carried out by analyzing climate data, determining land map units, and taking soil samples in the field. Stages of combining several parameters were done by using Quantum GIS (QGIS) software using matching between land characteristics and land suitability class criteria. The results showed that the suitability of scrublands for coffee cultivation in the scrublands of Aceh Besar Regency was more suitable for robusta coffee cultivation, where after the improvement process was done, the potential land suitability to be moderately suitable (S2) with an area of 13,240.8 ha (52.3%), according to marginally suitable (S3) covering an area of 11,982 ha (47.3%) and not suitable (N) only an area of 107.8 ha (0.4%). The unsuitability limiting factor (N) for robusta coffee cultivation was only found at SPL 2 with Slope Class inhibition> 40%. As for the suitability of scrubland for Arabica coffee cultivation in Aceh Besar Regency, it had a fairly severe limiting factor on all land map units (SPL), including parameters of average temperature and altitude with no suitable class category (N), so the improvement process could not be done.
Study of changes in physical and chemical properties of corn during drying and storage process using a modified in-store dryer
Authors: Nurba D , Agustina R , Zahara M 
Published: February 2021

Abstract
In-Store Dryer (ISD) is a dryer with a convective system for grain that also serves as a storage. This research was conducted to study the effect of drying and storage—In-Store Dryer (ISD) on maize's physical and chemical properties. Carried out a 200 kg maize capacity test with 60 cm material stack thickness divided into three layers of piles with a thickness of each layer is 20 cm. Drying occurs at the average drying temperature of 38,6°C with an average RH environment of 76,8% and an average RH of dryer space of 52,2%. Drying for 32 hours using ISD can dry the maize with the pre-drying material's initial moisture content of 20.14% to 13.56%, the right water content for storage. The drying process can affect ash, fat, protein, and maize fiber's physical and chemical composition. The chemical composition on the pre-drying are: Ash content 0,72%, Fat content 5,62%, Protein 7,64% and Fiber 2,81%. The maize's chemical components undergo post-drying change to become: Ash content 0,8%, Fat content 5,11%, Protein 7,82%, and Fiber 2,52%. The changing of all components is affected by temperature during the drying process, causing a decrease in water content, affecting other chemical components. The analysis result of maize's nutritional components after drying and storage for 30 days using the In-Store Dryer can maintain maize quality. The analysis result of each component that is the Water Content 11.98%, Ash 1.13%, Fat 5.03%, Protein 8, 05%, and 1.8% fiber, and this is by the provisions of SNI 01-4483-1998 for animal feed.
Study of life cycle assessment in biodiesel production from crude palm oil and its benefits for the sustainability of oil palm industry in Aceh province Indonesia
Authors: Siregar K , Sofyan H , Nasution I S , Ichwana R , Syafriandi S , Sholihati  , Sofiah I , Miharza T 
Published: February 2021

Abstract
LCA is a method used to quantificate impact especially environmental aspect from production of product. The environmental impact that can be calculated by LCA is very diverse, approximately 18 impacts, which called midpoint impact. The most commonly calculated impact is GWP, which is derived from GHG emissions. In Indonesia LCA began to develop and be used by govermnet or industry to calculate impact from their activities especially production of product. One of the industry that use LCA is palm oil industry. Indonesia palm oil is criticsm from both domestic and international level because of the environmental impact and unsustainable. However, production of biodiesel from CPO in Indonesia can reduced emission is 47 % if we compare to diesel fuel. Even though the source of the energy is considered as carbon neutral, the production path can emit various environmentally hazardous gasses. Scientific approach through Life Cycle Assessment can be used as a tool to assess this issue. Number of LCA study on Indonesian biodiesel production come up with different result. This difference could be due to data inconsistency and did not present the actual condition found in the field. According to those aforementioned situations, an effort to address this issue should be conducted by identifying and presenting actual condition of Indonesian palm oil estate. This study is aimed to analyze implementation of life cycle assessment for oil palm industry from oil palm cultivation to biodiesel combustion in vehicle (upstream to downstream) in Indonesia
Palm sugar production from Palm tree in Gerenggam village environment, Aceh
Authors: Yuzan Wardhana M , Hakim Lukman , Afkar Nailil , Sari Ira Mayam , Saiful Bahri T. , Zulkarnain  
Published: February 2021

Abstract
This study aims to determine internal factors (strengths and weaknesses) and external (opportunities and threats) in increasing the production of brown sugar from palm oil and to formulate alternative strategic priorities in increasing palm sugar production in the palm oil palm sugar home industry. The study was conducted in Gerenggam village, Kejuruan Muda District, Aceh Tamiang Regency, in May 2019. The analysis was carried out using IFE/EFE analysis, SWOT analysis, and QSPM analysis. The results of the study indicate that there are internal factors consisting of five strengths and five weaknesses, external factors consisting of five opportunities, and five threats that affect the increase in production in the palm sugar home industry. The strategy obtained to increase the palm sap production is an aggressive strategy (SO) that is using power to get the opportunities available, the results of the QSPM analysis are the priority strategies that must be implemented to establish and enhance cooperation with the government in the use of room processing machines for efficient use of labor with the highest total TAS of 6.160.
Environment control for beef freezing simulation and determination of thermal characteristics
Authors: Iskandar C D , Munawar A A , Lubis T M , Zainuddin  
Published: February 2021

Abstract
Beef is a meat products obtained from cows which is commonly used for food consumption. To determine the optimum freezing, we have to recognize the freezing rate and heat properties of the product during the freezing process. The aim of this study is to simulate the heat properties and determine optimum rate and time of beef freezing. In compiling simulation program, the programming algorithm is based on mathematical models used to control the surrounding environment for beef freezing purpose. The simulation results showed that during freezing, the temperature continues to decrease from the freezing point of water to the desired final freezing temperature. In this process, water undergoes a phase change from a liquid phase to a solid phase which is marked by the formation of ice crystals. It may conclude that the simulation algorithm can predict changes in the thermal properties of beef during freezing where based on changes in its characteristics the freezing of beef begins to change its thermal properties at the initial freezing temperature of -1.5°C.
Study on shallow borehole Water blowout genesis based on geo-chemical properties from affected dug wells water
Authors: Dharma D B , Rizal S , Umar M , Iskandar I , Devianti  , Idroes R 
Published: February 2021

Abstract
This present study aimed to investigate the shallow borehole water blowout genesis based on geochemical properties from affected dug Well. A geochemical study was performed on dug well samples at the local community houses, namely SG-01, SG-02, SG-03, located around the blowout areas. The results showed that those three respective samples clustered onto two groups of water types, namely calcium bicarbonate in SG-01 and SG-02 and mixed types for SG-03, respectively. Moreover, the dissolved metal analysis did not show high concentration anomalies, whilst cation concentrations of the three samples are dominated by calcium, which is suspected from the rock dissolution process. The dominant anion is bicarbonate for SG-01 and SG-02, while the SG-03 sample is dominated by sulfate. The cross plot between the two isotope ratios with the global meteoric water line shows the isotope values of the SG-01 and SG-02 that are right on the global meteoric water line while SG-03 falls slightly above it.
Removal of Cr(III) and other pollutants from tannery wastewater by Moringa stenopetela seed
Authors: Islam M D , Rahaman A , Mahdi M M , Mallik D 
Published: February 2021

Abstract
The tanneries release a substantial amount of trivalent chromium with wastewater that bring about serious environmental pollution problem and health hazards without proper treatment. Therefore, the chromium concentration should be kept permissible in tannery effluent. In this study, the dried Moringa stenopetela seed was used as bio-adsorbent for the removal of Cr(III) from tannery effluent. Different adsorption parameters viz. pH, adsorbent dosage, initial chrome concentration, etc. were studied for optimizing the adsorption process. The sorption mechanism was described by various isotherm models and physicochemical parameters like turbidity, conductivity and TDS were also tested after treatment. The analyses showed that the percentage of Cr(III) removal (82.93%) was obtained at pH 3, adsorbent dosage 20g(mg/l), initial concentration 1123.3mg/l, for contact time 12hours at ambient temperature. The adsorption process followed Langmuir isotherm model. Additionally, the reduction in physicochemical parameters e.g. turbidity (67.68%-72.70%), conductivity (72.88%-80.99%) and TDS (71.96%-83.33%) was found satisfactory and the values were closed to the permissible limit set by DoE. Therefore, dry Moringa stenopetela seeds can be successfully used as a low-cost tannery effluent treatment agent to reduce the environmental threats caused by harmful tannery effluents.
Fast and contactless assessment of intact mango fruit quality attributes using near infrared spectroscopy (NIRS)
Authors: Kusumiyati  , Munawar A A , Suhandy D 
Published: February 2021

Abstract
In recent decades, the development of fast, non-destructive and robust methods to determine agricultural products quality parameters become interesting and gaining more attentions in term of their potential applications in many field. One of those methods is near infrared spectroscopy (NIRS) which is works based on the interaction of biological matter with light radiation. The main purpose of this present study is to employ the NIRS method in assessing mango fruit quality parameters in form of soluble solids content (SSC) and vitamin C. Spectra data of absorbance NIR were acquired in wavelength range from 1000 to 2500 nm with optical gain 4x and resolution windows 0.02 nm. Prediction models were developed using partial least square regression (PLSR) followed by 10-fold cross validation. The results showed that both SSC and vitamin C of mango fruit can be determined simultaneously with maximum correlation coefficient are 0.88 and 0.87 for SSC and vitamin C respectively. Judging from its predictive abilities, it may conclude that NIRS can be used as fast and contactless method in assessing mango fruit quality parameters like SSC and vitamin C.
Motion and postural risk analysis for agricultural soil pivot type trailer hitching system on two-wheel tractor
Authors: Dhafir M , Safrizal  , Idkham M , Munawar A A 
Published: February 2021

Abstract
The operation of a conventional trailer on a two-wheeled tractor shows that it is ergonomically risky, especially during turns, where the Rapid Upper Limbs Assessment (RULA) analysis shows a very high level of risk, namely the level of action 4, which requires immediate investigation and repair because it can cause injury to the operator. Modifications that have been made are the design of the pivot-type trailer towing system on two wheels that can improve operator comfort. This study aims to analyse the motion and posture of the operator in the operation of a pivot-type trailer on a two-wheeled tractor using the RULA method. The sample consisted of 4 operators representing the 5th, 50th and 95th percentiles of Indonesians, the operator video recording data when operating the tractor and trailer with various track conditions, loads, speed, straight motion or turns were collected. Analysis of the operators was carried out quantitatively, namely the RULA method. The results of the RULA analysis show that in the operation of the pivot-type trailer hitching system, it has a score of 3 for straight motion and a score of 4 for turning movements, so the level of action required is 2 which means further investigation is needed. The RULA analysis shows that the pivot-type trailer hitching system has succeeded in improving the RULA score compared to conventional trailers so as to reduce the risk of musculoskeletal disorder (MSD) to the operator.
Morphological and physiological change of rice (Oryza sativa L.) under water stress at early season
Authors: Ichsan Cut Nur , Bakhtiar  , Efendi  , Sabaruddin  
Published: February 2021

Abstract
Water stress is a major factor affecting rice production. Water stress causes changes in physiology and morphology for plant tolerance to water stress. In this study, six varieties were examined for their tolerance to water stress. The check varieties for comparisons of tolerant, moderate tolerant and sensitivity to water stress, namely Situ Patenggang, Towuti and IR 64; while the test varieties in this study are three Aceh rice traditional varieties. Water stress significantly influences the number of tillers, length of internode, proline, chlorophyll a, b and the total content, leaf rolling, drying score and leaf recovery, in which the changes occur varies among varieties, in vegetative stages. Chlorophyll is the main indicator of rice tolerance to drought in the early season of the rice growing season. Varieties that have good adaptation to water stress are able to maintain their chlorophyll content. Leaf rolling, drying score and recovering from water stress show a small difference between three comparative varieties and three rice traditional varieties of Aceh in vegetative stage. To overcome water stress, it is necessary to change rice cultivation by adjusting planting time, planting season, using water stress tolerant varieties, traditional varieties and national superior varieties; changes in irrigation and fertilization management.
Verification of Experimental Hysteresis Loops for Exterior Beam-Column Joint Under Lateral Cyclic Load
Authors: Hadi N D , Hamid N H 
Published: February 2021

Abstract
This paper presents the verification of experimental to modelled hysteresis loops for exterior beam-column joint tested under lateral cyclic loading. The reinforced concrete exterior beam-column joint was designed using Eurocode 8 and equipped with fuse bars as energy dissipators. The specimen was tested under lateral cyclic loading under controlled displacement (drift). The purpose of this study is to ensure a good agreement from both works is achieved. The exterior beam-column joint modelled hysteresis loops were carried out using HYSTERES Program which is one of the modelling programs under the Ruamoko 2D program. The verification was done by comparing the parameters of experimental hysteresis loops to modelled hysteresis loops. The response of the specimen was compared in terms of equivalent viscous damping, stiffness and ductility. Low percentage differences indicate good agreement between the two hysteresis loops.
Packaging strategies in Gayo arabica ground coffee
Authors: Safrizal  , Fadhil R , Nurba D 
Published: February 2021

Abstract
Coffee has become a distinctive feature of the Province of Aceh, so many shops have made coffee a commodity that is traded, packaging is one of the things that are attractive to consumers to buy coffee that is available. The packaging has several parameters that are considered, including writing design, packaging form, trademark, packaging color, packaging material and other parameters. The purpose of this study is to obtain a sequence of packaging parameters that are important to consider when making coffee packaging so that it attracts consumers. The research was conducted by direct interview with the owner and shopkeeper and questionnaires. The results showed that the trademark is the coffee consumer's first consideration in choosing packaged coffee, further researched, the trademark which included the name of a place famous for coffee became the first consideration.
Advisory innovation model on Indonesian farmers corporation’s development
Authors: Mardiharini M , Hanifah V W , Dewi Y A 
Published: February 2021

AbstractIndonesian agriculture development requires the effort to accelerate adoption of innovation and increase farm productivity. One approach through farmers corporation’s development had been carried out by the Assessment Institute of Agricultural Technology (AIATs). This study aimed to identify the performance of advisory innovation and to formulate alternative models for accelerating the adoption process. The research was conducted from June to December 2019 through e-survey addressed to the implementing team in 33 provinces (64 respondents), and qualitative data collections in four provinces. Data were analyzed using Partial Least Square. The results showed that advisory activities have referred to government regulations by prioritizing locations and commodities. Implementation of advisory activities were still focused on improving cultivation and post-harvest technology, and did not address specifically on institutional innovation to build farmers corporations. Characteristics of advisory activities varied among locations, relating to the budget allocation. There was an increase in adoption and diffusion innovations, and farm productivity. The role of AIATs has not been seen in the development of a broader scale. Fit model (AVE > 0.5 and CR > 0.7) in advisory showed the importance of improved internal management at AIATs, the need for synchronizing programs, and the policy support.
Comparative analysis of coffee preference in Jatinangor
Authors: Rasmikayati E , Saefudin B R , Wardhana M Y , Baihaqi A 
Published: February 2021

Abstract
The growth of coffee shops in Jatinangor continues to increase along with the higher public interest to consume coffee. The competition between coffee shops has become tighter. The coffee shops use various marketing mix strategies to increase customer satisfaction. This study aims to analyzing and comparing the consumers behavior and the level of consumer satisfaction to the marketing mix strategy of two coffee shop. The study is designed quantitatively by comparing two coffee shops i.e. long-running and newer coffee shops. The location of the study is determined purposively, namely Belike Coffee and Balad Coffee Works with samples size of 50 people at Belike Coffee and 60 people at Balad Coffee Works. Data were analyzed using crosstabulation analysis and scoring techniques. The results showed that the segmentation of Belike Coffee consumer is mostly college students who visited to enjoy the delicious taste of coffee while watching live shows together, meeting or doing assignments. While the consumers behavior of Balad Coffee Works is mostly college students who want to enjoy the delicious taste of coffee and a comfortable coffee drinking atmosphere. The level of customer satisfaction of Belike Coffee is better than Balad Coffee Works in aspect of affordability of prices, while Balad Coffee Works is better at Belike Coffee in the aspect of products and services. Meanwhile, from the aspects of location strategic, promotion, process, and physical evidence, both have the same level of customer satisfaction in the range of good to very good.
Environmental friendly packaging based on rice liquid as edible film: a feasibility study
Authors: Ratna  , Rizkinazar P , Sari S P 
Published: February 2021

Abstract
Rice liquid is the water obtained from the process of washing rice. This waste is easy to get because Indonesian people tend to eat rice as their main staple food which results in a lot of rice liquid. The rice liquid waste can be used as the main ingredient of an edible film. This study aims to determine the effect of the addition of sorbitol concentration on the characteristics of the edible film from rice liquid waste which includes thickness, tensile strength, elongation and water vapor transmission rate. The method used in this study is one-way ANOVA completely randomized design (CRD) with 3 variations of sorbitol concentrations, they are: 2%, 4%, and 6% and was carried out three times. The data obtained from the research were then analyzed at a significant level of P<0.05. The parameters tested include thickness, tensile strength, elongation and water vapor transmission rate. The research data shows that the thickness values obtained are between 0.01367 mm - 0.2453 mm, tensile strength values range from 180.61 kgf.cm−2 -159.28 kgf.cm−2, elongation between 190.613% - 186.920%, and water vapor transmission rates between 1.3004 g.m−2.h−1- 4.6444 g.m−2.h−1. The addition of sorbitol variation does not have significant effect (P>0.05) on the tensile strength, elongation and water vapor transmission rate, but had a significant effect (P<0.05) on the thickness of the edible film. A good variation of sorbitol by producing a good edible film made from rice liquid waste is a variation of sorbitol with a sorbitol concentration of 2%.
Development of e-journal system in South Aceh Polytechnic using web based application
Authors: Asmaidi  , Ihsan M A , Putra D S , Zulfa M , Rusnanda R , Kartawijaya M 
Published: February 2021

Abstract
Student publication organizing application is an application used to assist officers in the process of managing web-based student publication journals. The mechanism of this research was made iteratively from the process of making software requirements specifications, analyzing system requirements, then proceed to the system design stage, use case and flowchart design, database design, and interface design, then followed by developing applications and closed with testing. The programming languages used are PHP, HTML, and MySQL databases. The results of this study are the document design and application organizing of student publications. The application of this student publication organizing application can improve the quality of the scientific journal organizing process at the South Aceh Polytechnic more systematic and organized to achieve efficiency and improve publication to be global.