bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of sintering temperature on structure and morphology of Ca0.95La0.02Bi0.03MnO3 perovskite manganite prepared by sol-gel method
Authors: Faruq U , Kurniawan B 
Published: December 2019

Abstract
The effect of sintering temperature on the structure and morphology of Ca0.95La0.02Bi0.03MnO3 was investigated by X-ray diffraction and Scanning Electron Microscope. The sample was prepared by sol gel method. Their homogeneity was confirmed using X-ray diffraction. Rietveld refinement of X-Ray diffraction results showed that the sample sintered at 1100 °C for 12 h are single phase and have an orthorhombic structure with Pnma space group. While, the samples were sintered at 900 °C and 1000 °C did not show a single phase due to another peak is found. For the lattice parameter, crystal volume increases with increasing sintering temperature. The largest crystal volume was reached at sintering temperature 1100 °C which is equal to 208.7319 Å. For the angle of the Mn-O-Mn bond, the sample was sintered at 1100 °C has the largest value obtained 157.6695° while at 1000 °C is 157.1440° and 900 °C is 157.3655°. For the average Mn-O bond length shows relatively the same value for all sintering temperature. The sample was sintered at 1100 °C had the largest grain size. Sintering temperature does not change the crystal structure of Ca0.95La0.02Bi0.03MnO3 samples
Synthesis of zeolite NaX using elephant grass (pennisetum purpureum) as a silica source and its characterization
Authors: Setiadji S , Sundari C D D , Aprilia V , Sumiyanto E , Novianti I , Ivansyah A L 
Published: December 2019

Abstract
Zeolite NaX is a synthetic zeolite with faujasite framework that has large pores, which it is largely used as adsorbents. Zeolite NaX was synthesized using silica (SiO2) which was extracted from elephant grass (Pennisetum purpureum). The silica was isolated from elephant grass using its ash with conventional ignition method, with NaOH as solvent. The extracted silica purity is 86.33%. Zeolite NaX was synthesized with 3.5 Na2O : Al2O3 : 2.9 SiO2 : 150 H2O as molar ratio in hydrothermal condition at 90 °C for 15 hours. Synthesized zeolite was then characterized using FTIR to confirm the formation of zeolite based on chemical bonding that appears on the spectrum, XRD to confirm the framework structure of the formed zeolite, and SEM to obtain its morphology. Based on those analysis, it is known that the result of synthesis process is zeolite with NaX crystal structure and octahedral morphology with crystal sizes range 1-5 µm.
Characteristic fillet of aloe vera gel as edible coating
Authors: Suriati L , Utama I M S 
Published: December 2019

Abstract
This research aims to know the influence of storage temperatures against characteristics fillet of Aloe Vera that is potential as an edible coating. This study used a randomized complete design. Colour fillet Aloe Vera clear white initially when stored at room temperature turns pink on day 2. While stored at cool temperatures the color change on day 4. The gel is stored at cool temperatures have pH and moisture content are relatively stable, decreased severity is also lower compared to the store at room temperature. Aloe gel fillet show change of characteristic beginning at day 4 when gel is stored at ambient temperatures. A decrease in activity is also evident when the fillet stored refrigerated, even though the rate of activity loss is greatly reduced. The losses of activity appear to be result of enzymatic activity after the leaf is removed from the plant. The characteristic of fillet Aloe Vera gel that storage at cool temperatures better than storage at room temperature, and decreased with the longer storage It can be seen from color characteristics change, lower weight loss, decreased water content and pH of relatively more stable.
Laboratory study influence pore volume in compressive strength foam cement
Authors: Santoso A , Setiati R , Hamid A 
Published: December 2019

Abstract
Pore volume of foam cement is a main factor affected compressive strength in the addition axial load design. Foam agent material used in this research is Sika-aer as a replace the nitrogen gasses. This research study used mix composition cement 1 : silica sand 0.25 : water 0.5and foam agent 0.03% - 0.15% BWOC. The purpose of this study is providing alternative cementing product beside lightweight cement in oil and gas industry with foam cement to mitigate loss circulations. Compressive strength testing was carried out with different time periods and pore volume testing were carried out on each addition/change in foam agent concentrations every cement slurry mixture. Characteristics of bubbles on cement slurry is one of many factors that influences compressive strength parameters. Compressive strength foam cement depends on size, diameters and relationship between bubbles on the cement slurry. This laboratory study produced compressive strength values between 1078 psia – 3745 psia and pore volume values between 15 cc – 17 cc in 5 samples core foam cement with different foam agent concentrations Sika-aer.
Synergistic effect of a cobalt dopant and Au nanoparticles on the photocatalytic activity of ZnO nanorods
Authors: Putri A E , Fauzia V , Roza L 
Published: December 2019

Abstract
The photocatalytic performance of zinc oxide nanorods (ZnO NRs) still needs improvement. In this regard, the addition of noble-metal nanoparticles (NPs) and doping with transition metals can be employed. In this study, nanocomposites of ZnO NR/Au and Co-doped ZnO NR/Au NPs were synthesized by ultrasonic spray pyrolysis and hydrothermal method and subsequently used as photocatalysts for the degradation of methylene blue. Results revealed that pure ZnO NRs exhibit a degradation rate of only 28.8%, while ZnO NR/Au NPs exhibit a degradation rate of 37.3%, and Co-doped ZnO NR/Au NPs exhibit the highest degradation rate of up to 46.5%. Based on these results, the presence of Au on the ZnO NR surface can enhance the photocatalytic activity due to its key role as an electron sink, which reduces the recombination rate of electrons and holes, while the incorporation of Co into ZnO NRs can also enhance the number of crystal defects, which can widen the visible-light absorption spectrum.
Novelty Luther-Sutopo method for game development
Authors: Satwika I P , Untoro W , Ardyanti A A A P , Sujarwo W 
Published: December 2019

Abstract
This research proposed a new Luther-Sutopo method to create multimedia product. The old Luther-Sutopo method was successfully used to create a multimedia product like a movie, video or interactive multimedia application and game. But there was missing maintenance step as one of important step to successfully develop a game. On the other side, Luther-Sutopo method only suitable for short term game development without considering the sustainability of multimedia development. In this paper, we aimed to create a framework that modify basic Luther-Sutopo concept. The new framework has been tested to create Bedugul Forest game. The study found that the framework successfully applied to create the game and the development process more suitable for game development with limited resources.
Enhancement three-pass protocol security with combination caesar cipher and vigenere cipher
Authors: Rahim R , Rosid M A , Fitrani A S , GS A Daengs , Ginantra N L W S R 
Published: December 2019

Abstract
Key-based security is still the most widely used form of security today with a key distribution process between senders and receivers that is commonly perform and also it is a classic problem in cryptography where key must be share to other parties (sender or receiver) and its maybe known when third parties do sniffing process or man in the middle attack. Three-Pass Protocol is one solution that can be used to overcome the problem of key distribution, because the sender and receiver can encrypt and decrypt without need to exchange keys. Security in Three-Pass Protocol uses XOR logic so that the resulting ciphertext will be very easy to decrypt by those who are not responsible, to improve data security in the Three-Pass Protocol process which is use Caesar Cipher and Vigenere Cipher algorithms in the encryption and decryption process in the Pass Protocol scheme, and ciphertext encryption results are quite difficult to read and require a long time to decrypt them.
“Hijaiyah” interactive learning for pre-school students
Authors: Pradibta H , Nurhasan U , Pramesti T D , Suryadi S B 
Published: December 2019

Abstract
Limited time allocation for Islamic education in primary schools is an obstacle for the students to understand the lesson. The core of Islamic education is to understand reading and to write letters Hijaiyah. The concept of traditional learning patterns and lack of time made the level of understanding of students is low. Hence, learning media are needed to attract student’s attention. Especially in children of the present era who are challenged with various types of technology, including mobile phones, televisions, and computers. The role of IT-based media can be a solution in current learning. In the learning process, especially for children, is learning that gives birth to a pleasant atmosphere. Images and sounds that appear will make children not get bored quickly so that they can stimulate learning in children. In learning that involves the media in the process of learning certainly must consider aspects of early childhood development. Augmented Reality can be utilized in various fields, including education. In learning, there are Quantum Learning theories, which explain visual, audio, and kinesthetic (VAK) methods. From here, Augmented Reality and Quantum Learning theories are interconnected. In this application, there will be Hijaiyah letters that are simulated in the form of AR with a sound and how to pronounce it. This application is to help the learning process of Hijaiyah letters, only by scanning the Hijaiyah letters from the Android camera.
Smart tourist guide application for the introduction of Malang city tourism potential using hybrid technology
Authors: Nurhasan U , Pradibta H , Suryadi S B , Alfinda A 
Published: December 2019

Abstract
Tourism in Malang City with Strategic City Branding (Beautiful Malang) is one sector that contributes significantly to efforts to increase regional income. The variety of types of tourism that exist, it needs to be supported by the existence of a good information dissemination system. The existence of this system makes it easy for women to get access to regional tourism information. In this study, two technologies were used, namely geographic information systems and augmented reality. The use of GIS technology aims to provide information that is geographically related to a tourism object. While Augmented reality is used to bring up 3D objects along with information relating to the tourism object. In its application, this application was successfully used with 90% of respondents expressed satisfaction with the performance of the application. The rest complained about the delay when scanning the tourism object markers. The use of this hybrid technology is expected to be able to provide tourism information with more attractive packaging as well as an educational media for tourism promotion. For further development, it is necessary to apply an efficient data parsing concept so that there is no delay when there is a data request.
Classification of stamps and handmade batik based on pattern recognition
Authors: Firdaus M D , Nugroho H 
Published: December 2019

AbstractBatik is a traditional cloth made by painting motifs with Indonesian culture nuance on plain cloth. It has always been used by the people, from their birth until marriage, even someone who died using batik cloth as a cover. Batik cloth made with philosophy and symbolic meaning. Every region in Indonesia has a characteristic according to the circumstances and character of the man himself. There are three ways to make batik, such as using stamps, handmade, printing. Every type of batik has different types of patterns, and there is a repetition of a pattern and a combination of several patterns. Based on the type of batik, handmade batik has the highest price, and printing batik has the lowest prices. For batik lovers, handmade batik would want to have, but not everyone knows how to characterize the stamps batik and often mistaken in the detection of the type of batik. Thus, only a few people can distinguish the differences between the three types of batik. It is difficult for ordinary people to recognize a batik pattern. The purpose of this research is to create a prototype system that can detect the patterns of batik motifs created by handmade or stamps. Cosine similarity is used in this research to recognize the pattern and classified handmade or stamps batik. The results of this research is 95% in detecting handmade and stamp batik, then 91% in detecting sum of pattern in stamps batik.
Design of human resource information system for micro small and medium enterprises
Authors: Baswardono W , Cahyana R , Rahayu S , Nashrulloh M R 
Published: December 2019

Abstract
The articles aim to analyze and design of human resource information system (HRIS) for micro small and medium enterprises in Indonesia. The problem some times occurred happen in human resource when the business starts to grow. To solve this start with analyzing and design in this HRIS system using RUP (Rational Unified Process) to handle a problem such as attendance, payroll, manage employee and other Human resource problem in the scope of small or medium business. The result is a design of HRIS that can be a start for a blueprint and can be implemented for micro small and medium enterprises with condition and regulation that fit in Indonesia and also will provide the results of a design document analyzing the business needs of the process and the design of the HRIS system using the RUP method.
Design a web-based asset management information system using the straight line method for private universities
Authors: Uriawan W , Alam C N , Rifa’i A A 
Published: December 2019

Abstract
Universities cannot be separated from the existence of assets owned, therefore an information system is needed that functions as a tool in the asset management process. Most asset management in the private university still using Spreadsheet besides that the management of its assets is also not centralized. These problems can be solved by creating a web-based asset management information system. The purpose of this research is for design and build an asset management information system at the private university. The method used is straight line where this method is used for problems in calculating the depreciation of assets and knowing the useful life of the asset. This system can help private university administrative staff in managing assets and calculating asset value.
KNN (K-Nearby Neighbor) for identifying agricultural land
Authors: Syahminan S , Maknunah J , Dijaya R , Hindarto H 
Published: December 2019

Abstract
Agricultural land in Malang Regency is a vital element because most of the population are farmers and working in the agricultural sector. The agricultural land area of Malang Regency is around 15.74% (49,593 hectares) which is paddy fields and 31.31% (98,641 hectares) are fields. Not all types of crops can flourish on each of these farms because every land and plant has different characteristics. Therefore, to help determine the type of food crops that are suitable for a land, a method system for identifying land for food crop cultivation using the KNN (K-Nearest Neighbor) method was developed. With the existence of a land identification decision system for food crop cultivation, this method approach makes it easier to determine which plants are in accordance with the conditions of the land, in order to increase agricultural productivity in the southern part of Malang Regency.
Local potency mapping-project using iMindMap
Authors: Della R N , Endah A 
Published: December 2019

Abstract
The results of previous studies confirm that there are several learning models that have the potential to improve students’ competencies in reviewing Creative Products and Entrepreneurship Products (PKK). Through iMindmap media presented by the teacher, students of Vocational Middle School (Vocational School) have the opportunity to develop project scenarios based on local potential using a business map. This experimental study aims to determine the effectiveness of the mapping-project learning model by using iMindmap based on local potential media to improve the competency of student entrepreneurship. The mapping-project instrument was developed by researchers and validated by experts. The results indicate that the mapping-project learning model using iMindmap based on local potential could improve student competence in analyzing business opportunities using analysis of strengths, weaknesses, opportunities, threats (SWOT), and designing prototypes of superior products based on local potential using a business map. This study recommends that with the mapping-project model, students’ ability to explore Creative Products and Entrepreneurship Products material becomes more profound, meaningful, and student-centered. Future research is needed to analyze the contribution of mapping-projects using iMindmap media on exact lessons.
Use of Naïve Bayes classifier algorithm to detect customers’ interests in buying internet token
Authors: Prehanto D R , Indriyanti A D , Nuryana K D , Soeryanto S , Mubarok A S 
Published: December 2019

Abstract
Determining possible technology used in calculating customer buying interest is important for the company as it relates to marketing strategies and policies. The Naïve Bayes Classifier is a possible method to measure customer buying interest. This study aims to analyze the accuracy of this method in calculating customer buying interest of internet token. Data were obtained from past sales and then analyzed using the Naïve Bayes Classifier to predict future opportunities by defining the class of attributes. The classifications used were operator, internet quota, token active period, and product price. This study found that the Naïve Bayes Classifier was provably accurate in calculating customer buying interest as well as comparing the prediction with actual results aside the data training. Results showed that this method successfully classifies 10 products of 858 transactions as data training and 10 products of 115 transactions as data test. Here indicates that all data test and data training analysis showed eight of the tenth meaning that eight of ten predictions were correct or it had 80% accuracy. This study is expected becoming a reference in analyzing data sales and predicting future sales conditions, so it will help to determine appropriate strategy of product development.
Simple Additive Weighting algorithm to aid administrator decision making of the underprivileged scholarship
Authors: Indriyanti A D , Prehanto D R , Prismana I G L E P , Soeryanto  , Sujatmiko B , Fikandda J 
Published: December 2019

Abstract
Underprivileged scholarships are assistance provided by government or institutions to students from poor families. Scholarships can be given to all students at the education level from elementary school to higher education with certain conditions and criteria. However, in reality many scholarships are given that are not on target. This is because of the number of students who register as scholarship recipients. Therefore, it is necessary to have a decision support system in order to aid the selection process. This study aims to find appropriate system to aid the underprivileged scholarship selection. This study proposed a system which was built using PHP for programming languages and using MySQL as its database using the Simple Additive Weighting method. Data is taken from SMK Sultan Agung 1 Jombang. Data is then analyzed and tested using the Blackbox testing method. Results of this research obtained a list of the best ranks of prospective scholarship recipients which are result of processing from system. The results obtained from system will be validated by means of comparisons with manual calculations as in Table 1. The validation results show same results, so that system can be said to be valid and can replace process that is done manually.
The counting game uses the fuzzy Tsukamoto method
Authors: Ekojono E , Cahyaningrum R , Batubulan K , Rahmanto A N 
Published: December 2019

Abstract
Learning to count on elementary school students must be trained in how to memorize, many practice questions are done repeatedly. This counting exercise needs to be stimulated so that students have the motivation to learn, this kind of training is mostly done by the teacher to students by giving questions in turns in one class as if the students are in a game playing condition. Counting exercises can be applied in the form of games with applied counting operations learning to train students to count quickly. The approach with attractive application visualization is expected to be able to help the learning of elementary school level students, especially class 1. Tsukamoto Method, in each rule is represented using a fuzzy set, using a monotonous membership function. To be able to determine the value of crisp output or firm results. By using the Unity 3D game engine that is capable of making 2D games, the Fuzzy Tsukamoto method is used to determine the final game score. Tests that have been done show that the results of the questionnaire that game 2d on the functionality aspect get a result of 3.97 on a scale of 5.
Design and implementation of keycode encryption for electric door lock embedded system using cryptography algorithm
Authors: Ariyanto Y , Batubulan K S , Aji D K P , Sutrisno N A 
Published: December 2019

Abstract
In this digital era the usage of locks is no longer only relies on traditional key systems, but also relies on usage of electronic sensors that can improve security system. Now the threat to keyless locking system does not only come from physical sources but also come from non-physical or digital sources. This treat can be prevented by using cryptography to hide digital data in the system. In this research utilizing a raspberry pi and a servo motor as a locking device, a web server as a data storage center, a mobile device software application as a user interface. Raspberry pi is a mini computer that can be used for various needs. The password will be sent over internet from mobile device to web server and raspberry pi will give a command to the servo to unlock and lock. This study will compare between combination of RSA, 3DES, AES 128 bit, and 256bit AES algorithms to obtain an algorithm that could be operated optimally on the system based on encryption and decryption speed. The final result of this study is a method to implement cryptographic algorithms on smart key systems to obtain better security.
Mobile Digital Education (MDE) for increasing competence of students based on E-Characters Mental Revolution (E-CMR)
Authors: Wibowo F C , Budi A S , Iswanto B H , Suherman S , Darman D R , Guntara Y 
Published: December 2019

Abstract
The purpose of this research is to develop a new web-based Mobile Digital Education (MDE) design to measure character education using as an effort to face the era of disruption. E-Character Mental Revolution (E-CMR) Based on Mobile Digital Education (MDE) for Student Competency Improvement in Facing the Disruption. The research method used was a mixed method with the research subject being 80 students in Islamic boarding schools and 80 students in one of the state colleges in Banten, Indonesia of aged 19-22. The scores were analysed using both qualitative and quantitative methods. The results obtained that MDE-based E-CMR can improve the cognitive competence of students in Islamic boarding schools with an N-gain <g> score of 0.74 high categories and improve cognitive competence of students of colleges with an N-gain <g> score of 0.76 high categories. It can be concluded that the MDE-based E-KRM is significant in increasing the competence of students and facing of the disruption.