bluuebunny/crossref_metadata_2025_split huggingface dataset:
Redesigning a sustainable bioenergy system using a multi-platform application
Authors: Nur S M , Ariati R , Yandri E , Adiatmojo G D , Abdullah K 
Published: March 2020

Abstract
This article is a concept that arranges and expands the bioenergy system paradigm that has been widely published by renewable energy experts. The new paradigm is based on the principle of the energy system where all factors must be identified and included because they affect the sustainability of the system’s process, performance and results. The target of this concept is structuring a more holistic and effective analytical technique to guide policymakers, entrepreneurs, and researchers in making decisions and implementing bioenergy projects. The literature review is used as an analytical tool to build this concept and the results of a study indicate that the bioenergy system is all key components that can be grouped into policy and regulation subsystems; the subsystem of the production and bioenergy utilization chain, the bioenergy management subsystem; and the bioenergy infrastructure subsystem. To get sustainability, bioenergy system is necessary to link and identify key materials that are related and interact with the economic, social and environmental pillars that support the sustainable development system. Future prospects are translating the concept of bioenergy system and their constituent components into mathematical models, making a research guide in the future based on agro-industry and regional agro-bioenergy system in Indonesia.
Hyperspectral image remote sensing classification using RotBoost
Authors: D Indradewi I G A A , R Ginantra N L W S , Ariantini M S 
Published: March 2020

Abstract
Hyperspectral images are able to provide more information because this kind of images have hundreds of spectral bands. In machine learning, the classification of hyperspectral data has several challenges, including high number of dimensions, number of output classes, and limited data references. The solution given to overcome the challenge is to use Ensemble Learning. The benefit of using Ensemble Learning is that we can improve the classification performance of hyperspectral data. One of the Ensemble Learning methods is RotBoost, which is a combination of the Rotation Forest and Adaboost methods. To find out the performance of the RotBoost method, this research used hyperspectral data of vegetation area in Indian pines, Indiana, USA that is provided by NASA’s airborne visible infra-red imaging spectrometer (AVIRIS). The RotBoost method then compared with Rotation Forest method to find a better performance. Confusion matrix used to evaluate the accuracy of each method in the classification. The performance measured is overall accuracy obtained by doing 5-fold cross validation. This experiment also conducted to find the most optimal S (number of base classifiers) and T (number of iteration in Adaboost) values. Experimental results showed that RotBoost produces better accuracy than the Rotation Forest. S and T parameter values are also not very influential on RotBoost accuracy.
Automatic high speed photography based microcontroller
Authors: Desnanjaya I G M N , Iswara I B A I , Ekayana A A G , Santika P P , Hartawan I N B 
Published: March 2020

Abstract
High-Speed Photography is a technique to capture a moment that moves very quickly. This technique is commonly used by photographers and scientists for research purposes, especially in the fields of physics, chemistry, and metallurgy. To capture the moment that moves quickly the photographer must squeeze the camera manually, then the camera will tend to shake, and the picture is not taken correctly. Also, there is also a delay between squeezing the camera with the shutter movement that adds error factor. In this study designed a high-speed automatic photography tool using a sound sensor that can freeze objects automatically when the sound is heard. To design and make this High-Speed Photography tool automatically use Microcontroller and FC-04 Voice Sound. The results of the overall test conducted to test all the components contained in the tool High-speed automatic photography. The first test scenario is to put the tool ± 50 cm will work optimally, the second test scenario is the sound sensor response when the balloon object to distinguish the object to photograph. This tool is capable of taking pictures automatically when the sound is heard.
Body mass index measurement system as a desktop-based nutrition monitor
Authors: Ekayana A A G , Hartawan I N B , Desnanjaya I G M N , B Joni I D M A 
Published: March 2020

AbstractToday, having a healthy body is everyone’s dream, from the age of the children, teenagers to adulthood. Personal health must be maintained to run all the activities that are being done. One of the factors that affect the health condition is the nutritional status of a person, which sometimes decreases or increases too high. Body mass index is the most commonly used indicator to know the nutritional status of a person. This system uses two sensors, the load cell sensor as a weight gauge and ultrasonic sensors as a measure of height. Processing data using Arduino Uno and the results of data processing from microcontroller issued to the LCD and stored on the PC database as data Body Mass Index which further processed and displayed the person’s nutritional status directly. After the test, the system successfully measured the weight and height that will be processed into the value of Body Mass Index. The test of this system is performed by randomly selected respondents, both children and adults. Value of the measurement system is also compared with the value using standard tools for measuring weight and height, and the results have near 100% accuracy.
Gender aspects, overnutrition, and air pollution in relation to asthma severity in adolescents
Authors: Garina L A , Mansoer F A F , Grahadinta M R , Puspitasari I 
Published: March 2020

Abstract
The prevalence of obesity in asthmatic patient has increased, and associated with worse asthma severity and quality of life. This study investigates the effect of gender and overnutrition on asthma severity. Observational study on 41 overnutrition (overweight and obese), and 41 normweight asthmatic adolescents in two primary high schools. Diagnosis and asthma severity based on GINA, ISAAC and Indonesian Paediatrician Association (IDAI). The BMI was converted to z score from WHO, and lung function was measured by spirometer. The statistical analysis was performed with the software SPSS v.20. The mean BMI in female was higher than male. The mean FEV1; FVC; FEV1/FVC in female was lower than male. The mean FEV1; FVC; FEV1/FVC in overnutrition was lower than normweight. Based on asthma severity: 39% intermittent, 39% mild persistent, 17% moderate persistent, and 5% severe persistent. As many as 77% of 47 females had persistent, of 41 overnutrition asthmatic adolescents 85% had persistent asthma. There are an impact of gender and overnutrition on asthma severity (OR:4.4; 95%CI:1.7-11.3; p=0.002 and OR:9.1; 95%CI:3.1-26.5; p<0.001). Among asthmatic adolescents the risk for persistent asthma was greater in females with overnutrition compare to males.
The model for determining location of export coffee’s warehouse distribution in West Java
Authors: Ceha R , Dzikron M , Muhamad C R , Farash M , Riyanto S 
Published: March 2020

Abstract
The objective of this article is to design a solution to coffee supply chain improvement by warehouse distribution center determination of exported coffee in West Java. Determining the distribution warehouse center requires three stages: determining clusters, determining warehouse’s location of each cluster, and determining warehouse’ center; sequentially, each of them has 6, 14, and 5 steps. Several methods used in conducting those stages are Clustering Method (or well-known as Agglomerative Clustering for determining clusters), Model Optimization (P-Median Method) for determining warehouse location in each cluster, and Location Theory for determining the export warehouse center. The first stage results in classifying West Java into 4 clusters. Cluster I consists of 3 Districts and 1 City. Cluster II consists of 4 Districts. Cluster III consists of 4 Districts. Cluster IV consists of 3 Districts and 3 Cities. Furthermore, in determining warehouse’s location of each cluster, central of warehouse distribution at cluster I is located in Bogor District, Cluster II is located in West Bandung District, Cluster III is located in Kuningan District, and Cluster IV is located in Tasikmalaya District. At the final stage of determining warehouse center, Cirebon is selected to be the center of coffee export warehouse in West Java. This study could abridge inefficient coffee supply chain in order to increase the selling price of coffee among farmers, which could increase their profit and prosperity.
Study of ambulance ship design for island services in Indonesia
Authors: Pusaka A , Dewanto Y A , Octaviany F 
Published: March 2020

Abstract
Ambulance ships are one of the ships used to help transport the people who experience pain and are in the islands and are connected to the nearest regional General Hospital. The ship will be used in two concepts, namely the first to transport sick people or due to disasters and when ordinary days are used to transport passengers. This need is a consideration to reach areas that are quite difficult to reach. In this plan, the principal dimension is determined according to the area covered. Ships selected using Fibreglass material. The planning method uses a spiral design with ship planning procedures. The dimensions obtained are based on the results of calculations according to the function and usability of the ship. And the speed of the ship produced as well as the load space for passengers and sick people. This ambulance ship will be used according to the limits of the planning results.
Students’ imitative and creative reasoning ability in solving geometry problems
Authors: Permatasari N , Darhim D , Jupri A 
Published: March 2020

Abstract
This research aims to analyse students’ imitative and creative reasoning in solving geometry problems. The reasoning is essential for students. The reasoning in the context of learning mathematics is needed to understand mathematical concepts, build a mathematical idea and provide evidence of the truth of the idea. The reasoning divided into imitative and creative. Indicators of creative reasoning consist of creativity, anchoring, and plausibility. The method of this research was qualitative descriptive research. The subjects in this research were thirty-four students in ninth grade around fourteen to fifteen years old who have studied about cube and cuboid. Data collection was done by tests and interviews. The results of the data analysis show how students solve geometry problems using imitative and creative reasoning. The student answers are categorized into three groups, student answers by imitative and creative reasoning, student answers by imitative without creative reasoning, and the last student answers by creative without imitative reasoning.
The effect of Process Oriented Guided Inquiry Learning (POGIL) on mathematical problem solving abilities
Authors: Muhammad M , Purwanto J 
Published: March 2020

Abstract
This research aimed to identify the effect of POGIL model on the students’ mathematical problem-solving ability. The variables involved in this research were mathematical problem-solving abilities as an independent variable, and the POGIL model as a dependent variable. Based on the observations of researchers through interviews with mathematics subject teachers and students at Junior High School 2 Kalibagor, showed that the mathematical learning process that took place was still dominated by learning that did not involve the active role of students. The learning used is still teacher-centered and limited to information transfer, especially in the form of theoretical and mathematical equations. The population of this study was the students at seventh grade in Junior High School 2 Kalibagor, even semester in the school year 2017/2018 consist of 8 classes and amounted to 219 students. Sampling was done randomly, selected as an experimental class is 66.91 with 30 students and 55.91 as control class with 30 students. This test was validated by two mathematicians, then it was tested to a group of seventh-grade students to fulfill the validity and reliability criteria. The data were analyzed by using t-test after conducting a series of normality and homogeneity tests. It was concluded that t-test for equality of means was used for hypothesis testing that shows a significant value = 0.000 less than alpha 0.05. So that H0 is rejected, it means that students’ mathematical problem-solving ability taught by using POGIL model is better than students’ mathematical problem-solving ability taught by conventional learning. In other words, POGIL model influences or effects on students’ mathematical problem-solving abilities.
Turbulent modelling analysis of saturated steam flow in curved convergent divergent nozzle
Authors: Pujowidodo H , Siswantara A I , Daryus A , Gunadi G G R 
Published: March 2020

Abstract
The objective of this study is to analyze turbulent flow characteristics of turbulence modeling in Steam Curved Converging Diverging Nozzle. The three turbulence models have been conducted to simulate flow characteristics using k-ε standard, k-ε Renormalization Group (RNG), and Reynolds Stress Model (RSM). Fluid dynamics parameters such as pressure, velocity, and/or density have been analyzed graphically to know the more suitable model. The k- k-ε STD and RNG show give the similar profile of the turbulent kinetic energy (k) and energy dissipation rate (ε) that is differ with the RSM model. After throat position (position 0.67 m) the k-k-ε STD and RNG give the magnitude more than 1200 (m2/s2) for its turbulent kinetic energy and more than 3.2E06 (m2/s3) for its energy dissipation rate. The RSM model give the lowest values which far below 200 (m2/s2) for turbulent kinetic energy and below 2E05 (m2/s3) for energy dissipation rate. The turbulence modeling analysis of steam saturated flow in plane-curved nozzle present the increasing steam velocity about 3 Ma for 200 kPa steam inlet.
The analyse of the automotive alternator as a generator in Picohydro system: Laboratory experiment test
Authors: Adibowo S , Uyun A S , Nur S M , Abdullah K , Yandri E , Adiatmojo G D 
Published: March 2020

Abstract
The aim of this article is to evaluate the feasibility of using an automotive alternator as a Pico water turbine (Picohydro). The automotive alternator system is examined by the pump as a turbine, using water energy in the simulator system to generates the automotive alternator. The simulator equipment that has been made is used to see the performance of the automotive alternator as a generator and recorded a few parameters in the closed-loop system. From this evaluation, the greater the water flow or water pressure that drives the pump as a turbine, the higher the power is produced from the automotive alternator. The Study shows that automotive alternator can be used as a generator and an alternative to generating electricity.
Chronic pesticides exposure on the farmers in Tanjung Wangi Village: Focus on Alpha-Synuclein as a Biomarker of Parkinson-sporadic
Authors: Yulianti A B , Tresnasari C , Widayanti W 
Published: March 2020

Abstract
The study aim was to analyze the effect of chronic pesticide exposure on farmers in Tanjung Wangi village. Observational study with male adult farmer as respondents. 100 questionnaires were given to farmers and 56 returned. The average age of respondents was 46.5 years, education was primary school, length of work/day was 4-6 hours, length as farmer was more than 10 years. The results were no respondents have Parkinson symptoms with a median score were 57, 61, and 67.5 on 1 to 5, 5 to10, and more than 10 years pesticide exposure respectively. From 56 respondents selected 30 persons randomly for physical examination (PE) and blood examination Parameters measured were PE, concentration of glutathione-total and alpha-synuclein in erythrocyte membranes. Data analysis was performed with IBM SPSS 21. The results were no respondents have digestive and balance disorders. Alpha-synuclein concentrations were not significantly different between the length of exposure as well as total glutathione concentrations. PE significant correlation with alpha-synuclein (rho=0.366, p=0.044). Pesticides cause oxidative stress in erythrocytes. Alpha-synuclein has the potential as a biomarker for Parkinson-sporadic disease.
Estimation of the magnitude of the Ruderman-Kittel interaction in 3d and 2d GaAs crystals
Authors: Gribakin B F , Cherbunin R V , Kavokin K V 
Published: March 2020

Abstract
In this paper, estimates are made of the Ruderman-Kittel interaction in a gallium arsenide crystal and in GaAs quantum wells of varying widths. The calculation results indicate that this interaction may be weaker than the magnetic dipole-dipole interaction by an order of magnitude. Also discovered was a relatively strong dependence of this interaction on the level of doping.
Optical studies of wide-bandgap HgCdTe material used in potential-and quantum-well structures
Authors: Andryushchenko D A , Bazhenov N L , Mynbaev K D , Mikhailov N N , Remesnik V G 
Published: March 2020

Abstract
Optical transmission and photoluminescence were used for the study of wide-bandgap (0.8-1.1 eV) HgCdTe (MCT) material grown by molecular-beam epitaxy. The material, including layers used as spacers and barriers in potential-and quantum-well structures, showed a considerable degree of alloy disorder similar to narrow-gap MCT grown by the same method. In some samples, defect states in the bandgap were found. Optimization of the growth technology for wide-bandgap material should help improving the quality of MCT-based potential-and quantum-well structures designed for various applications.
Structural properties of ZnSe/InSe/ZnSe heterostructures grown by molecular beam epitaxy on GaAs(001) substrates
Authors: Avdienko P S , Kirilenko D A , Sedova I V , Sorokin S V 
Published: March 2020

Abstract
The paper reports on molecular beam epitaxy of ZnSe/InSe/ZnSe quantum well (QW) heterostructures grown on GaAs(001) substrates as well as studies of their structural properties. The structures were characterized by reflection high energy electron diffraction, scanning electron microscopy, and high-resolution transmission electron microscopy techniques. The evolution of surface morphology of QW heterostructures as a function of the InSe thickness has been studied. The quasi van der Waals growth of ZnSe on the InSe(0001) surface has been demonstrated, with the ZnSe(111) plane being oriented parallel to the (0001) plane of InSe because of a small lattice mismatch between InSe and ZnSe(111).
Some features of controlling the composition of a porous silicon surface with the use of “simplest” post-treatment techniques
Authors: Lenshin A S , Kaskarov V M , Seredin P V , Belorus A O , Moshnikov V A 
Published: March 2020

Abstract
The article is concerned with the investigation of techniques of the post-treatment of porous silicon. To study the features of changing the composition of the chemical bonds of the surface of porous silicon, we used the method of infrared spectroscopy.
Near-infrared optical absorption in GaN/AlN quantum wells grown by molecular-beam epitaxy
Authors: Vinnichenko M Ya , Fedorov A D , Kharin N Yu , Panevin V Yu , Firsov D A , Nechaev D V , Ivanov S V , Jmerik V N 
Published: March 2020

Abstract
Optical absorption of s- and p-polarized light was studied in GaN/AlN quantum wells in the near-infrared spectral range. An absorption peak associated with intersubband electron transitions in quantum wells was observed near a wavelength of 1.55 μm. Optoelectronic devices based on these structures can be used in fiber-optic telecommunication technologies.
Electromagnetic realization of topological states in one-dimensional arrays of bianisotropic particles
Authors: Bobylev D A , Smirnova D A , Baryshnikova K V , Gorlach M A 
Published: March 2020

Abstract
We propose a strategy to realize one-dimensional electromagnetic topologically protected states by modifying on-site properties of particles keeping linear equidistant geometry of the array. Based on the discrete dipole approximation, we demonstrate the existence of non-trivial topology of photonic bands and mapping to the Su-Schrieffer-Heeger model. We investigate the properties of an isolated ceramic disk to optimize its electromagnetic response, namely, the splitting of electric and magnetic dipole resonances due to bianisotropy. Using full-wave simulations we demonstrate the presence of the topological interface state in the microwave spectral range.
Functional properties of tempe protein isolates derived from germinated and non-germinated soybeans
Authors: Astawan M , Wresdiyati T , Subarna  , Rokaesih  , Yoshari R M 
Published: March 2020

Abstract
Tempe is an indigenous Indonesian soybean fermented food. Tempe is a source of protein which can be used as a raw material for making protein isolate. In this study, the tempe was produced from Grobogan local soybeans with two types of treatment, germinated and non-germinated. The two types of tempe produced were then processed into protein isolates, namely tempe protein isolate from non-germinated soybeans (NGTI) and tempe protein isolate from germinated soybeans (GTI). This research aimed to measure the functional properties of NGTI and GTI and then compared them to CSI (commercial soy protein isolate). The results of this study showed that the functional properties of GTI and NGTI were not significantly different. Still, GTI had significantly higher values (p < 0.05) than CSI on the parameters of water absorption capacity (5.86 and 1.57 g water/g sample), oil absorption capacity (2.48 and 1.19 mL oil/g sample), foam capacity (133.50 and 120.00%), foam stability, emulsion stability, and gel strength. From this study, it can be concluded that GTI and NGTI have good functional properties that have an opportunity to be applied in the food industries as a substitute for CSI.
Effect of storage temperature and type of packaging on physical and chemical quality of carrot
Authors: Asgar A 
Published: March 2020

AbstractCarrot can get damaged during harvesting or during storage which can reduce the quality. The research was conducted in the laboratory of post-harvest Vegetable Crops Research for the month of May-July 2016. The research aimed to analyze the effect of storage temperature and type of packaging on the characteristic of carrot. Factorial randomized block design with 4 x 4 and 2 replications was used in the study. The first factor was storage temperature consisted of 5 °C, 10 °C, 15 °C and room temperature. The second factor was the packaging comprised of polypropylene, polyethylene, wrapping, and non-packaging. Results showed that storage temperature affected water content, respiration rate, hardness, and weight loss in 3 weeks and 4 weeks of storage. Packaging affected on water content, vitamin C, respiration rate, and weight loss in 3 weeks, and 4 weeks. The temperature of 5 °C was the storage temperature that could maintain changes in the characteristics of the carrot. Polypropylene plastic type was an excellent package in maintaining changes in the characteristics of carrots during the storage process.