bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development of Android-based mobile learning modules on the immune system for Madrasah Aliyah Negeri (MAN) 9 Jakarta
Authors: Wulaningsih R D , Rusdi R , Erawati D 
Published: March 2021

Abstract
The 21st century is marked by the use of technology in learning. One example is the use of smartphones as learning media in the form of Mobile Learning Modules, which are expected to make it easier for students to learn biology material. This study aims to develop biology learning media in the form of Android-based Mobile Learning Modules on the Immune System material. The research method used is Research and Development (R&D). Research procedures include concepts, design, material collection, product manufacture, product testing, and distribution. The study was conducted at MAN 9 Jakarta. The research involved media experts, material experts, students, and biology teachers. Data analysis using Kolmogorov Smirnov, statistical tests using Paired Sample t-Test. The results showed that the Android-based Mobile Learning Module for the Immune System material was rated by an average score of 91.4%. The average pretest and post-test scores were 57 and 78.8. The conclusion of this study shows that this Android-based Mobile Learning Module has fulfilled the requirements as a learning medium and can improve student learning outcomes on the Immune System material.
Acid mine drainage removal by mixed bacteria culture of Pseudomonas aeruginosa and Brevibacterium sp.
Authors: Putri A N , Ratnaningsih R , Rinanti A 
Published: March 2021

Abstract
Acid mine drainage is a problem faced by the mining industry in Indonesia has a negative impact on the environment because it is very acidic and contains heavy metals. This bioremediation research to determine the ability of a mixed bacteria culture of Pseudomonas aeruginosa and Brevibacterium sp. in removal acid mine water. The study began with an allowance test in liquid media using artificial growth media Stone Mineral Salt solution (SMSs) with the tested parameters namely contact time (hours) and concentration of acid mine water pollutants (% v/v). Parameter variation consists of contact time (hours) 24 to 240 and concentration of acid mine pollutant water (% v/v) 10 to 25. Mixed culture are resistant to the presence of acid mine water as a substrate that is xenobiotic because no inhibition zones are formed around paper discs that have been exposed to acid mine pollutant water and can grow on Nutrient Agar (NA) media added with acid mine pollutants. The pH of the liquid media increased from 2.14 to 5,87 with optimum contact time 144 hours with a temperature of 30 °C and optimum pollutant concentration 10%.
Digital assessment tools for public area practices in the Hospitality Industry
Authors: Jubaedah Y , Rinekasari N R , Rohaeni N 
Published: March 2021

Abstract
Various assessment tools used for competency judgment are not referring to the demands of Standard Operating Procedures in the Hospitality Industry. The study investigated the production of digital assessment tools based on digital application in the public area practices and the measuring of interns’ achievement in public area practice using SmartRubrics. The data were collected through this applications that produce the objective of job performance competency from 33 participants. The finding showed that (i) digital assessment tools of public area practice has the advantages in both the application system and the display features including the preparation stage, the process and the results of the practice that accordance with the Standard Operating Procedures in the Hospitality Industry; (ii) most of the interns were declared competent based on the results of tests from internal and external examiners through the digital assessment process. Recommendations were made to the policy-makers that digital assessment tools of public area practice become the appropriate reference to be implemented in a briefing before carrying out internship and in implementing internship in the Hospitality Industry.
The contribution of the Internet of Things and smart systems to agricultural practices: A survey
Authors: Setiaji T , Budiyanto C , Yuana R A 
Published: March 2021

Abstract
The growing demand for agriculture products contradicts the challenges associated with the decline in farming land size and labour workforce. Recent literature acknowledges that the Internet of Things (IoT) plays a crucial role in enhancing the smart aspects already deployed in agriculture. Smart farming is an emerging concept because of IoT sensors capable of aggregating information about their agriculture fields under real-life circumstances. The paper aims to survey the recent implementation of IoT based monitoring systems applied in agriculture worldwide. A systematic literature review carried out to investigate the extent of IoT adoption in agriculture industries. The understanding of Reason to adopt IoT, the Scale of adoption and the cost and benefit of IoT adoption were drawn from papers published in SCOPUS, Web of Science, and DOAJ between 2010 up to early 2020. Twenty-eight most relevant articles extracted from the search. This paper recommends strategies to adopt an IoT-based monitoring tool pertinent to irrigation systems implementation in Indonesia.
Web of Things to control planting seeds and watering plants for indoor smart farm
Authors: Sulistyanto M P T , Febriawan E , Sulistiyowati I 
Published: March 2021

Abstract
With the emergence of the Web of Things (WoT) as Internet of Things (IoT) enhancement in web application, the Industrial Revolution 4.0 has developed very rapidly. Its technology has been commonly used in various fields of life, especially in agriculture. One of the crop plants is often achieved by vegetable farming, as vegetables are the staples of daily life. Aim this study is for plating mustard green seeds and watering plant using WoT. This method begins by doing literature review, requirement analysis, design and implementation. The result shows the developing of prototype to planting mustard seeds and watering plant is successful that it can be remotely operated through WoT. The planting and watering process uses Gcode command to carry out seed picks, planting seeds, and water plants.
Implementation of User Centered Design methodology for designing information systems introduction to culture based on mobile applications
Authors: Dwanoko Y S , Arin F F S 
Published: March 2021

Abstract
Design and build an information system really require a method that can produce a reliable information system, this is evident from the system design process that comes from the user’s needs. The design of information systems that are not based on the needs of users directly involved will result in a software crisis. The purpose of this research is to implement an information system design method based on user needs that can produce a software requirements specification document (SRS). The research method used in making this information system design is User Centered Design (UCD) which consists of 5 stages, namely the plan the human centred Process, Specify the content of use, specify the user and organization requirements, produce design solution, and evaluating the design. The results of this study are the SRS document information system introduction to culture based on mobile applications with the UCD method, it is hoped that this research can also be used as a reference for designing information systems.
How to manage scope, time and cost of project management plan to develop manufacture information system
Authors: Susilowati M , Kurniawan Y , Prasetiya H P , Beatrix R , Dewa W A , Ahsan M 
Published: March 2021

Abstract
The information system project must be built with the right processes as especially the project management. The Right Management Project will create a good and right product. And also will reach optimal satisfy users. So we must management the project very well. In management project have triple constraints that are scope, time and cost management. In this research manage scope, time and cost of project management plan to develop manufacture information system with study case on a company that manufacture plastic bag because the stakeholder want to know how complete the application will be built and how long it will be take and how much it will be cost to develop manufacture information system. It is done to minimize project failures before start to develop. So the researches focus to manage scope, time and cost of project management to develop manufacture information system. This paper present outputs from our research such as product scope, project scope, work breakdown structure (wbs), project duration which are equipped with predecessor and milestones, Gantt chart tables, as well as project cost estimates.
The effect of alkali type on IFT value for surfactant-alkali injection
Authors: Latief F W , Setiati R , Mardiana D A 
Published: March 2021

Abstract
The aim of this research is to acknowledge alkali effect on surfactant-alkali on IFT value and to acknowledge temperature on surfactant-alkali IFT stability. There are six surfactant-alkali solutions utilized in this research. Meanwhile solution compatibility test in this research consist of Aquos Stability, CMC, IFT, phase behaviour test by utilizing micro emulsion observation for 24 hours and thermal stability on reservoir temperature (60o C) for 7 days. There are two surfactant-alkali solution type that pass selection stage, which are 5% salinity OGEP 400 OLEAT with 0.3% concentrate and NaOH with 0.1% concentration with surface tension of 5.176x10-3 dyne/cm, phase behaviour reading in phase 1, unstable thermal stability test with IFT measurement after thermal as much as 1.385×10-2 to 2.416×10-2 dyne/cm, filtration ratio of the filtration test is as much as 1.2 ml/second and recovery factor of imbibition result is as much as 75.5%. Meanwhile for alkali Na2CO3 in 0.5% concentration with surface tension test result of 3.379×10-3 dyne/cm, phase behaviour reading in phase 1, a relatively stable thermal stability test with IFT measurement after thermal of 2.42×10-2 to 2.871×10-2 dyne/cm, filtration ratio of filtration test as much as 1.17 ml/second and recovery factor from imbibition result as much as 57.8%. The obtained result shows that alkali addition is proven to be able to lower surfactant IFT to 10-3 dyne/cm. This finding can be utilized as a basic of EOR application in sand stone formation.
Characteristics of galvanized, graphene oxide and aluminum waste powder for coating on medium carbon steel
Authors: Tjahjanti P H , Fahruddin A , Iswanto I , Firdaus R , Jofalo Z N , Abdullah F 
Published: March 2021

Abstract
Medium carbon steel is one of the components vulnerable to corrosion although it has been coated. The purpose of this study is to measure the rate of corrosion penetration on low carbon steel coated galvanized penetration, graphene oxide, and aluminum waste powder. The process used is the use of hot dip galvanizing, where steel samples with temperature variations are immersed in hot liquid aluminum waste powder. Corrosion Penetration Rates (CPR) using dipped weight loss method in NaCl solution, the results obtained do not exceed the usual corrosion rate (0.5 mm / year) needed.
Effect of Natrium Carbonate (Na2CO3) on porosity and hardness in the melting of aluminium canned
Authors: Endramawan T , Sifa A , Dionisius F , Rifai A B 
Published: March 2021

Abstract
The smelting process is a process to form a product that resembles the original, one way to recycle products or household waste include melting aluminium cans of refreshing drinks to reduce waste, melting the cans into ingot specimens as raw material for making fishing boat propellers in order to reduce high production costs and to find out good quality, the method of melting aluminium cans mixed with Sodium Carbonate as much as 2.5%, 5%, and 7,5% into aluminium ingots which results are tested by hardness testing and digital microscope to see porosity and find out the hardness of each specimen, from experimental smelting mixed with 2,5% Sodium Carbonate has a hardness value of 56.44 and a mixing of Sodium Carbonate of 5% has a hardness value of 52.66 and a mixing of Sodium Carbonate of 7,5% has a hardness value of 55, 32. As for the porosity itself, the result of mixing 2,5% Sodium Carbonate has a porosity of 0.70 mm and a mixing of Sodium Carbonate of 5% has a large Porosity of 0.45 mm and a mixing of Sodium Carbonate of 7,5% has a large porosity of 0.21 mm.
Silica addition effect on optical properties of halide perovskite-PMMA composite film
Authors: Mahen E C S , Nuryadin B W , Irham M A , Aimon A H , Suprijadi S , Iskandar F 
Published: March 2021

Abstract
The effect of silica (SiO2) addition on optical properties of organometal halide perovskite PMMA composite film was studied. The organometal halide perovskite, MAPbBr3, was synthesis using ligand assisted re-precipitation (LARP) method, and then was compose to PMMA and SiO2 directly to make composite films. The absorbances, transmittances, and photoluminescence (PL) spectrum of the samples were characterised using UV Vis and PL spectroscopy. The result shows that the addition of silica leads blueshift on photoluminescence and absorbance spectra. The blue shift reveals one-dimensional confinement effect in perovskite.
Utilization of Bacillus circulans to improve the nutrient quality of rice straw biomass
Authors: Sasongko W T , Mulyana N , Fidara N , Yunita E , Wahyono T 
Published: March 2021

Abstract
Rice straw was an agricultural by product that has potential to be used as forage for ruminant. Ammoniated is technology, commonly to improve the nutrient quality of rice straw. Adding microorganisms to improve the process of rice straw ammoniation could be applied. The aim of this study was to improve the quality of ammoniated rice straw by adding Bacillus circulans and to know the best concentration of B. circulans in ammoniation process. Completely Randomized Design with five treatments and four replications: 1) rice straw (control, RS); 2) ammoniated rice straw with 0% B. circulans (ARS); 3) ammoniated rice straw with 0.075% B. circulans (ARS 0.075): 4) ammoniated rice straw with 0.1% B. circulans (ARS 0.1) and 5) ammoniated rice straw with 0.125% B. circulans (ARS 0.125). Incubation process was applied for 21 days. Results showed that ammoniated rice straw with B. circullans had improved the quality of rice straw such as increased ammonia (NH3). Ammoniated rice straw with 0.1% B. circulans was the best treatment by increased organic matter (OM) and decreased Neutral Detergent Fiber (NDF) content. Added 0.1% B. circulans also increased crude protein (CP), RFV index and ammonia (NH3). Rice straw ammoniated by adding 0.1% B. circulans could improve nutrient quality and fiber utility of rice straw biomass.
Electrodeposition of Ni-Nitride composite coatings: A review of recent study
Authors: Budi E , Sugihartono I , Indrasari W , Prayitno T B , Nasbey H 
Published: March 2021

Abstract
This work point to a wide potentially on performance improvement of transition metal-based coating system especially Ni-TiN-AlN and Ni-TiN-AlN/Si3N4 composite coatings by using electrodeposition process. Electrodeposition is widely used in metal matrix composite for many industrial applications due to a relatively cheap solution to enhance the composite performance. The aim of this work is to study the influence of various current density and nitride particles concentration on corrosion behaviour of composite coatings. The corrosion test was performed by immersing the deposited composite samples into acid solution for 2 hours. The results showed that the corrosion rate of Ni-TiN-AlN and Ni-TiN-AlN/Si3N4 composite coatings tend to increase as the current density was increased. While, the corrosion rate of Ni-TiN-AlN composite coatings at various nitride (TiN, AlN) particles concentration tend to decrease as the nitride (TiN, AlN) particles concentration was increased. It was shown that corrosion resistance of Ni-TiN-AlN/Si3N4 composite coatings at various Si3N4 was excellent due to the effectively incorporation of the Si3N4 particles as the corrosion barrier.
Analysis of type insect in Javanese Edelweiss (Anaphalis javanica) at Tegal Bungbrun Papandayan Mountain
Authors: Hernawan H , Abdussalam R , Taofik D B I , Susila A A R 
Published: March 2021

Abstract
This research is raining to find out the insect species, diversity index, abundance value, evenness value, dominance index, and insect density value on Javanese Edelweiss (Anaphalis javanica) in Tegal Bungbrun, Mount Papandayan. In this study the method used was purposive sampling using quadratic and Pitfal-trap techniques. The results obtained as many as 13 species belonging to 10 families and 5 orders with a total number of individuals is 235. The calculation results obtained, namely the diversity index at Tegal Bungbrun, Mount Papandayan of 1.0216, including at a moderate level, the highest abundance of insect species among 13 species, namely Apis andreniformis species with a value of 0.1957 are at abundant levels. Evenness value is 0.9171 which means that the insect evenness is in a stable condition. Insect dominance value of 1.9969 included in low dominance, dominated by Apis andreniformis of 0.3915. A density value of 9.4 is included in the low density category.
Reduced graphene oxide-based Transparent Conductive Films: The preliminary review of reductant materials agent
Authors: Iasha V , Wahyudiana E , Sumantri M S , Marini A , Setiawan B , Rahmawati D 
Published: March 2021

Abstract
This review aims to present reductant materials that can be used to reduce the oxygen content of graphene oxide which supports the manufacturing of TCF so the development of TCF increases in the future. Reducing agents are separated into two types i.e. toxic materials and green materials. The method that was used to make TCF based on graphene oxide reduction in this paper review was drop-casting, spray coating, vacuum filtration, and spin coating. From the results of the study, it was found that the resistance sheet for each reductant material ranged from 3.4×109 to 52.2 Ω/sq. Besides, the use of toxic reductant materials still dominates as a reducing agent because it has a lower sheet resistance than the green reductant materials. Although there are still many challenges in the study of the transparent conductive film based on reduced graphene oxide, the information in this review is expected to contribute to the development of various optoelectronic devices, especially for the development of flexible, portable, and smart device.
Aniline concentration-dependent surface area of emeraldine salt polyaniline
Authors: Ayuningsih A , Budi S , Paristiowati M , Fahdiran R , Handoko E , Sugihartono I 
Published: March 2021

Abstract
In this paper, we have reported a study on the surface area of emeraldine phase polyaniline prepared from different concentration of aniline. Polyaniline was prepared using oxidative polymerization at low temperature. A Fourier infrared spectrometer and X-ray diffractometer were used to confirm the formation of the conductive phase of polyaniline. The Brunner-Emmet-Teller (BET) surface area of polyaniline was obtained at a relatively low concentration of aniline. The highest BET value was 611.88 m2/g.
Waste of rice straw as renewable energy: An overview of the potential availability, content, and production process
Authors: Ana A , Khoerunnisa I , Muktiarni M , Dwiyanti V , Maosul A 
Published: March 2021

Abstract
Indonesia’s crude oil balance has been in deficit during the last decade. The increase in domestic crude oil consumption is inversely proportional to its production. New crude oil reserves are needed to anticipate a prolonged energy crisis. This study examines the potential of agricultural waste as a renewable energy source that can be produced in terms of availability, content, and production process. A systematic literature review was chosen as the method of this study. The biomass content in agricultural was can be used as bioenergy raw material, one of which is lignocellulose. Rice waste is an agricultural waste that is available in large quantities and contains high lignocellulose. Through biochemical processes, lignocellulose is broken down into lignin in the pre-treatment process. Cellulose is converted into glucose using acids in the process of hydrolysis. The conversion of glucose into ethanol is carried out in the fermentation process. Bioethanol is purified by a distillation process to increase the ethanol content. The high content of lignocellulose in rice waste and high annual production in various regions in Indonesia is a major potential. A comparison of the availability of agricultural waste as raw material for bioethanol is discussed.
Crystallinity and surface morphology of the Poly Ethylene Glycol-added cholesteryl acrylate-ITO composites
Authors: Afrizal A , Budi S , Ismail M , Gracia G , Intan I , Bryan B 
Published: March 2021

Abstract
Composite of cholesteryl acrylate-ITO nanoparticle was synthesized with the addition of polyethylenegycol (PEG). The crystallinity and surface morphology of the composites were investigated. XRD pattern of that product showed peaks in 2θ at 21° and confirmed a nematic phase. Therefore, added PEG could be changed the structures liquid crystal of cholesteryl acrylate. Percent crystallinity of the composites with different PEG variations of 0.001, 0.002, 0.003, 0.004, and 0.005 are0.001 is 8.14%, 12.41%, 14.85%, 7.11, and 8.66%, respectively. SEM image of the composite with PEG 0,003 indicated showed the formation of rods and chains crosslinking indicating successful photopolymerizations process. Those conditions made polymer to be micelle that affect their conductivity due to aggregation.
Fire ignition of NYM cable shield vapor on excessive electric current in multi core cables
Authors: Setyadi P , Kusumohadi C S , Triyono T , Yoga N G , Sutrisno H H 
Published: March 2021

Abstract
People oftenky use electrical appliances exceeds the technical specifications, but if done technically prevention of the manufacture of the cable to prevent the occurrence of fire, the fire risk will be minimized. Under the rules of SNI, heated wires or fed by the overcurrent, to be able to not burn. However, in some ocassions, electrical wires burned and turned into a heat source for fires. NYM cable flame characteristics in the event of overload currents, laminar diffusion flame occurs, the process of liquefaction, pyrolysis, diffusion, and combustion clearly seen. NYM cable flame propagation patterns in the incidence of overload start happening at that point reaches ignition temperature, which occurs due to an electric wire heat reaching the melting temperature of copper. Flame propagates in all directions where their fume and oxygen along the cable and around the cable. In certain circumstances, occur splash / explosion of the fuel to evaporate.