Indonesia Conference Directory

Corresponding Author
MUCHAMAD TAUFIQ ANWAR

Institutions
Universitas Stikubank, Satya Wacana Christian University, Universitas PGRI Semarang

Abstract
Particle Swarm Optimization (PSO), one of the versatile nature-inspired optimization algorithm, continue to suffer from premature convergence regardless of the rigorous amount of research. Many research had tried to address this issue but often use a complex algorithm which tax on computational time and complexity. This research introduced a novel perturbation method to mitigate premature convergence / to increase exploration while keeping the computational cost at a minimum. The particles memories (i.e the position of personal and global best) are modified by a random multiplier which in turn will -perturb- the particles- velocity. The implementation of this novel perturbation method in early iterations had resulted in 100% success rate in finding global optima in our benchmark tests (Sphere, Schwefel 2.22, Rosenbrock, Rastrigin, and Ackley problem) – whereas the original PSO failed in all benchmark tests – without adding a significant amount of computational complexity and time.

Keywords
PSO, premature convergence, perturbation, exploration

Topic
Information Technology

Link: https://ifory.id/abstract/uDafVZrCFGz9

Corresponding Author
Tri Hastono

Institutions
Universitas PGRI Yogyakarta

Abstract
A country is said to be progressing, if all regions of the country prosper. In Indonesia, the smallest area that runs the government function is the village. The legal basis regarding the village government itself is stated in Law No. 6 of 2014 Republic of Indonesia. In carrying out its functions as a government, the village is supported by village funds. Village funds sourced from the state budget are intended for the development and improvement of the welfare of rural communities. Village funds can go down based on the proposal submitted. The proposal for submitting village funds is processed by a work team called Tim 11. So far, the determination of village funds is still manual and less transparent. Therefore we need a system that can overcome the problem of determining village funds. This research provides alternative solutions regarding the determination of recipients of village funds using the weight product method. There are four criteria in this research, namely the number of residents in an RT area, the standard of living of an RT area, the extent of the area, the level of geographical damage in an RT area. And the object of the research chosen was Kasihan sub-district, Tamantirto village. the results obtained are a priority submission in writing the proposal submitted.

Keywords
Decision Support System;Village Funds;Weight Product

Topic
Computer Engineering

Link: https://ifory.id/abstract/nQLbpjBmKV8A

Corresponding Author
Megumi Akai-Kasaya

Institutions
An animate brain consists of interconnected complex biological networks of locally active components. The informational processing exploits massive parallelism with low energy consumption, utilizing the multiplicity and stochasticity of signals. Recently, utilization of desiglees random networks of inanimate matter for computation or informational processing has started to be proposed. Here we introduce two nanomaterial networks, which show complex response showing potency for advanced future signal processing.

Abstract
We succeeded in showing experimental evidence to prove Coulomb blockade taking place on Two-dimensional organic conducting polymer films. Electrical conductivity of hexylthiophene monolayer showed temperature-dependent threshold voltage in temperature range of 150K—4K and increased in power law of the current-voltage beyond the threshold. The onset of two-dimensional Coulomb blockade in the organic thin film was theoretically verified through the calculation of the delocalization of electric charge in the molecular film. This system meets the criteria to be a suitable building block for the physical realization of a cellular neural network. We further found a neuromorphic device that consist of extremely dense and random single-walled carbon nanotube (SWNT) complexed with polyoxometalate molecule generating spontaneous spikes similar to nerve impulses of neurons. A simulation calculation of the random molecular network model, which are able to store electric charges, replicate spikes generated from the network. This molecular model would very likely become a component of reservoir computing that is anticipated as next-generation artificial intelligence. These results indicate the possibility that complex functional networks can be constructed using molecular devices, and contribute to the development of neuromorphic devices.

Keywords
Nanomaterial Molecular Device Neuromorphic Neural Network

Topic
Information Technology

Link: https://ifory.id/abstract/qyPJN4QLxpnt

Corresponding Author
Sekreningsih Nita

Institutions
University PGRI Madiun

Abstract
The definition of an algorithm is to describe a problem into a sequence of systematic steps in solving problems. Arranging the algorithm in sequence from beginning to end so that it can solve the problem. The results of the implementation of the algorithm are programs. So the purpose of making an algorithm is to facilitate the making of the program. There are 2 types of algorithms, 1) Text (narration and pseudocode), 2) Visual / image (flowchart). Comparison between the two, students understand it which is higher between the text or visual model. This study aims to see how much infuence the value of students understands the algorithm in text or in an image. In conclusion, students are easier to understand the types of algorithms in an image. The test uses the sample T test, with a 5% significance level obtained value = 0.5. This means that the t count is greater than t table of 2.06390

Keywords
algorithm, pseudocode, flowchart, t test

Topic
Information Technology

Link: https://ifory.id/abstract/p7ExeNwKUrtd

Corresponding Author
Yohanes Agung Cahyono

Institutions
Chemical Engineering Department, 17 Agustus 1945 University, Pawiyatan Luhur Bendan Dhuwur, Semarang 50233, Indonesia

Abstract
Microbial fuel cell (MFC) is a technology developed to obtain new sources of renewable energy to produce electricity. It can be an alternative for wastewater treatment and bioenergy producers of renewable electricity. This method requires bacteria to convert substrate in wastewater into electrical energy. The mechanism of MFC were oxidation of substrate by bacteria to produce electrons and protons at the anode. The proton in anode chamber passes through a membrane exchange to the cathode chamber, however the electrons couldn-t through. It caused accumulation of electron in anode chamber and then both of electrode had a potential difference, so electron in anode chamber passed through membrane exchange to cathode chamber. In this study used dual-chambers reactors with each compartment having 8 cm × 10 cm × 10 cm of dimensions and 5 mm of thickness. This study was subjected to evaluate the performance of MFC in soybean washing wastewatertreatment with bacteria of EM4 to analyze the potentials production of electricity energy.The focus of this study was to evaluate the effect of time to electricity. MFC system was observed for 40 hours, measurement of voltages and electric currents performed every 2 hours. The results showed that there was potential of electricity production from soybean wastewater treatment by MFC. The maximum electricity reached in soybean wastewater media were voltage 441 mV (at 24 h), the electric currents 170 µA and the power density 51, 35 mW/m2(at 24 h after acclimatization). Increasing of time effect to decreasing of electricity produced.

Keywords
bioenergy, electricity, microbial fuel cell, membrane, wastewater soybean

Topic
Polymer

Link: https://ifory.id/abstract/FvzfkaCA7HY2

Corresponding Author
Retno Ambarwati Sigit Lestari

Institutions
Chemical Engineering Department, University of 17 Agustus 1945 Semarang, Indonesia

Abstract
This study tried to explore characterization of biodegradable plastic from jackfruit seeds and rice waste. Jackfruit seeds and rice waste contain starch, so it can be used for plastic material with addition of several additives such as polyvinyl alcohol (PVA), glycerol, chitosan and sorbitol. Starch is one of polysaccharides that be used as raw material for biofilms. Polyvinyl alcohol is the most important plastic in making water-soluble films. It was ability to form films, emulsifiers, and its adhesive properties. Polyvinyl alcohol has high tensile strength, good flexibility, and good oxygen barrier. Sorbitol and glycerol are also an additive in the manufacture of biodegradable plastics from starch, which is a plasticizer that increase elasticity. Chitosan have effects to bioplastic, such as biodegradable, hydrophilicity, and anti bacterial. This research aims to determine the effect of addition of PVA, glycerol, chitosan and sorbitol to optimum characteristics of bioplastic. The parameters to be examined bioplastic include thickness, moisture content, tensile strength, and % elongation. Increasing of glycerol added to the plastic material effect to decrease of tensile strength of bioplastic and elongation, lower water resistance and more easily degraded. Increasing of chitosan added to the plastic material effect to higher tensile strength, lower elongation, higher resistance to water and lower degradation. Increasing of PVA added to the plastic material effect to increasing of the tensile strength of the bioplastic and decreasing of elongation of bioplastic, but the increasing of sorbitol effect to decreasing of tensile strength and increasing of elongation of bioplastic.

Keywords
biodegradable plastic, elongation, jackfruit, starch, tensile strength, waste of rice.

Topic
Polymer

Link: https://ifory.id/abstract/WmYnJgPNt3F8

Corresponding Author
Ferdy Semuel Rondonuwu

Institutions
Department of Physics, Faculty of Science and Mathematics, Universitas Kristen Satya Wacana, Jl. Diponegoro 52-60, Salatiga, Indonesia

Abstract
Introduction The study focuses on the light-harvesting function of carotenoids. How carotenoids capture the photon energy and efficiently transfer its singlet energy to the neighboring bacteriochlorophyll in the pigment-protein antenna complexes (LH2) has been studied. The 11Bu- state in the light-harvesting function are critically investigated, tracing the excited-state dynamics of carotenoids free in solution and bound to the LH2. Aim of the study The goal of this study is to reveal the detailed mechanisms of light-harvesting function. The research focuses on the roles of the 11Bu- state in the light-harvesting function of Cars. A series of investigations were carried out to critically examine the roles of the 11Bu- state in the light-harvesting function. Method The internal conversion processes in Cars were investigated by the use of subpicosecond time-resolved absorption spectroscopy for a series of Cars in solution and bound to the pigment-protein antenna complexes. including neurosporene (n = 9), spheroidene (n = 10), lycopene (n = 11), anhydrorhodovibrin (n = 12) and spirilloxanthin (n = 13). The SVD and global fitting were applied to of spectral-data matrices. Results The results lead to a branched relaxation scheme of energy deactivation including (1) the singlet internal conversion in the sequence of 11Bu- 11Bu- > 21Ag- > 11Ag- (ground), and (2) the singlet-to-triplet conversion of 11Bu- > 13Ag followed by triplet internal conversion of 13Ag > 13Bu. The relaxation scheme took place in subpicosecond to decapicosecond time scales. Conclusion The 11Bu- state plays essential roles in light-harvesting mechanisms as a mediator state in the process of internal conversion, an acceptor state in the Car-to-BChl singlet-energy transfer and a precursor state for the rapid formation of the Car triplet state.

Keywords
Carotenoid singlet energy, relaxation scheme, SVD, Light-harvesting

Topic
Biology

Link: https://ifory.id/abstract/HRLQzm7qNCtg

Corresponding Author
Teruyuki Toba

Institutions
1 Department of Advanced Materials Science, Graduate School of Engineering, Kagawa University, 2217-20 Hayashi-cho, Takamatsu, Kagawa 761-0301, Japan

2 Department of Chemistry, Faculty of Science, Okayama University of Science, , 1-1 Ridaicho, Kita-ku, Okayama 700-0005, Japan

Abstract
We introduce SuperAtom, which is called a modern alchemy and has been studied around the world. The SuperAtom is a nanocluster composed of multiple atoms, for example Al13. But very interestingly, the “SuperAtom” can mimic the chemical properties of “atom”, for example, the Al13 exhibits the halogen atom Cl. If this SuperAtom is constructed to an appropriate size and can be synthesized freely, there is the possibility to be placed as an "artificial atom" in a three-dimensional periodic table such as the conventional two-dimensional periodic table. In recent years, the exhaustion of rare metals has become a big problem, so that in the next generation of materials and devices, the SuperAtoms play as an important role, and it is expected to be used for various materials or as a substitute for expensive metal catalysts such as Pt. From these points of view, the SuperAtoms have been studied all over the world up to now, but there is not much studies on their electronic structures. Therefore, in this study, we have analyzed the electronic state of the chalcogen-inclusive type SuperAtom M@Al12 (M = Be, Mg, Ca, Sr) by means of DV-Xα molecular orbital calculation. Our analysis revealed that the electronic configuration of the SuperAtom, which changed only the central atom, depends largely on the kind of doped atom. And we can also confirm the “SuperAtomic hybrid orbital” composed of SuperAtomic orbitals, and chalcogen characteristics.

Keywords
SuperAtom, SuperAtomic Hibrid Orbital

Topic
DV-Xa Method

Link: https://ifory.id/abstract/U8T6JGYCWK3w

Corresponding Author
Yasuji Muramatsu

Institutions
University of Hyogo

Abstract
To analyze the local structure of non-benzenoid rings in graphitic carbons by soft X-ray absorption spectroscopy, CK-XANES of aromatic compounds having pentagonal or heptagonal rings were theoretically analyzed by the first principle calculations. Edge-carbon atoms split the π* peak into two peaks in CK-XANES. Pentagonal rings in polycyclic aromatic hydrocarbon structure disturb delocalization of π electrons in hexagonal rings. Hence, pentagonal rings split the π* peak into two peaks in CK-XANES. It is also confirmed that heptagonal rings play a role of a hole in hexagonal carbon layer, and the heptagonal carbon atoms can be regarded as edge carbon atoms. Hence heptagonal rings also split the π* peak into two peaks. Consequently, edge-carbon atoms and non-benzenoid rings make the π* peak wider than hexagonal rings.

Keywords
Soft X-ray, XANES

Topic
Polymer

Link: https://ifory.id/abstract/PnDFCXfEGteH

Corresponding Author
Takeyoshi Oguma

Institutions
a. Department of Advanced Materials Science, Faculty of Engineering, Kagawa University
2217-20 Hayashi-cho, Takamatsu, Kagawa 761-0369 JAPAN

b. Department of Chemistry, Faculty of Science, Okayama University Science

c. Department of Chemistry, School of Science and Technology, Kwansei Gakuin University

Abstract
Metal complexes exhibit significant physical properties such as electrical conductivity, magnetism and optical properties. They can be controlled by changing the ligand field splitting of the d-orbital of the central metal ion. We have investigated the reversible spin crossover phenomenon by changing the ligand field splitting in six-coordinated metal complexes ML6. In this study, we focused on the change of the spin states by JahnTeller distortion in the case of an octahedral hexa-coordinated metal complexes ML6, involving 2 types of different ligand molecules. In addition, we have used DV-Xα and DVME methods in order to calculate the electronic state. In order to reproduce the effect of the JahnTeller distortion in the calculation, a uniaxial anisotropic distortion has been applied into the octahedral hexa-coordinate metal complex. The purpose of this research is to study the mechanism and phenomenon of the spin state changing by studying the spin crossover phenomenon.

Keywords
Complex

Topic
DV-Xa Method

Link: https://ifory.id/abstract/ZPvbBCL4xenD

Corresponding Author
Alexander Ogurtsov

Institutions
National Technical University “KhPI”, Kyrpychova Str. 2, Kharkov 61002, Ukraine

Abstract
The exciton-photon interaction leads to the formation of polaritonic states energetically positioned at both sides of the initial exciton. In a large ideal crystal of cubic symmetry, where the interval of the longitudinal-transverse splitting does not contain excitonic levels, the polaritonic dispersion branches lie beyond this interval at both sides of its boundaries. On the contrary, in a crystalline grain comparable or less in size than the wavelength in the substance, the interval of the longitudinal-transverse splitting is filled in continuously by excitonic states intercepting a significant part of the oscillator strength of the excitonic transition. The photoluminescence spectra of atomic cryocrystals (solid Xe and Kr) were measured at the Superlumi experimental station at HASYLAB, DESY, Hamburg. Unlike previous works, where the red polaritonic shift was small commensurably with a weak inelastic polariton-photon scattering, a large polaritonic shift of luminescence is not due to energy dissipation, the energy conservation law being met due to equal probabilities for opposite-sign energy shifts. Such effect is possible if the crystalline grains are comparable in size with light wavelength, which provides the filling in the interval of the longitudinal-transverse splitting by excitons with sufficient oscillator strength. And the sample structure must be perfect enough to lowering the exciton scattering rate with respect to the rate of the polariton formation through exciton-photon coupling. For the first time the excitation spectra of free-exciton luminescence band were recorded simultaneously below the bottom of excitonic band E and within the interval of the longitudinal-transverse splitting. The luminescence of non-equilibrium polaritons was observed both within the longitudinal-transverse splitting interval and at photoexcitation below E. The excitation spectrum below the bottom of excitonic band is determined by competition of two processes. The first one is the creation of excitons by photons with energy E at the Lorenz tail of excitonic absorption. The second process is a competing absorption related to the direct formation of two-site excitonic polarons (self-trapped excitons). Both excitation spectra of polaritonic luminescence below E and within the longitudinal-transverse splitting interval show high sensitivity to crystal quality of the samples.

Keywords
exciton-photon interaction, longitudinal-transverse splitting, inelastic polariton-photon scattering

Topic
DV-Xa Method

Link: https://ifory.id/abstract/R94qHUJam2hw

Corresponding Author
Suyitno tri

Institutions
Universitas PGRI Semarang

Abstract
The background of this study is the difficulty of Javanese high school language teachers in implementing the 2013 Local Content Java Language Curriculum. The problem discussed is how the application of the Damarjati application in the development of HOTS-based Javanese language learning in high school. The objective to be achieved is to describe the standard operating procedures of the Damarjati application in the development of HOTS-based Javanese language learning in high school. The object of this research is the application of the Damarjati application in the development of HOTS-based Javanese language learning with a population of Javanese language teachers and high school students in Central Java. The phenomenological approach applied in this research is carried out by developing products in the learning process with the Content Management System (CMS) format. Based on in-depth studies it was concluded that: 1) the Damarjati application was opened through damarjati.upgris.ac.id .; choose classes and semesters; choose themes and sub-themes, and provide corrections and comments; and 2) the application of the Damarjati application can develop HOTS-based Javanese language learning in high schools through the nggatekake menu, tetakon, naliti, nyoba, ngatonake, and gladhen. Our gratitude goes to the In the 7th International Conference on DV-X melalui Method Committee, through Ms. Mega Novita for her willingness to give our team the opportunity to join this highly qualified international conference.

Keywords
Javanese,Learning

Topic
Information Technology

Link: https://ifory.id/abstract/e4q8TZEBcVgf

Corresponding Author
Munaf Ismail

Institutions
Universitas Islam Sultan Agung

Abstract
Cases of vehicles theft in the Central Java region occurred 869 cases, the percentage was 57.86% against other crimes. To prevent vehicles theft, the police need public participation by increasing awareness of their vehicles. Vehicle theft can occur due to owner negligence and lack of safety locks on the vehicle. This study aims to create data mining application as monitoring vehicle position. The transmitter WiFi 2.4 GHz placed on a vehicle, then measured the RSSI signal by an android application based on fuzzy logic. Indication of theft is that the vehicle is positioned away from the owner, so the signal RSSI is less than -90 dBm. Fuzzy logic monitors this change in distance. When the membership function is lost, fuzzy logic instruct android to activated the alarm . Fuzzy logic was able to make decision give a alarm to user when RSSI signal less than -90 dBm. RSSI signal is less than -90 dBm when the distance is 20 meters if there is a wall barrier, without obstacle the distance is up to 80 meters. RSSI signal is influenced by the measurement environment.

Keywords
Data mining application, Fuzzy Logic, Monitoring vehicle position

Topic
Information Technology

Link: https://ifory.id/abstract/PERM47mFTWAr

Corresponding Author
Setyoningsih Wibowo

Institutions
Faculty of Engineering and Informatics Universitas PGRI Semarang

Abstract
Generally, the museum ambassador is based on various criteria from several assessment stages. The evaluation criteria for the audition stage are: interview, communication, appearance. Criteria for evaluating the quarantine stage are: creativity, ability, activity, loyalty, responsibility, and written test. Final stage assessment criteria: ideas, communication, and appearance. In the selection process, the committee uses the manual method so it is prone to errors. From these problems to the process of selecting the museum for ambassadors. The decision support system is using Topsis method. SDLC (System Development Life Cycle) is used as a design method. Research shows a score of 100 which means that the system is accepted by the user. While in testing the user test obtained from four respondents got a percentage of 89.24% which means that the system is worth of use. The system is developed in the web. So that is need more research to be developed in mobile.

Keywords
dss, museum, topsis

Topic
Computer Engineering

Link: https://ifory.id/abstract/RdXCVyNWbMnU

Corresponding Author
Rahmat Robi Waliyansyah

Institutions
a) Faculty of Engineering and Informatics Universitas PGRI Semarang
Dr. Cipto, Jl. Sidodadi Timur No.24, Karangtempel, Kec. Semarang Tim., Kota Semarang, Jawa Tengah 50232
*rahmat.robi.waliyansyah[at]upgris.ac.id

Abstract
An understanding of animal classification based on the type of food, is one of the sub themes in the subject of Natural Sciences. In school learning activities an understanding of the classification is conveyed through cooperative approaches such as presentations, group activities and tests. By doing the delivery method it is less attractive for students to pay attention and study in school, as well as to understand it themselves outside of teaching activities by reading books, can reduce students interest in learning it. With the existence of a different alternative in the form of an educational game, it can help in supporting the process of understanding animal classification based on the type of food carried out during teaching activities and outside of school hours. Coupled with the application of augmented reality technology on learning features that can increase user interest in learning, and for the application of learning in the form of interactive games. This educational game uses the ADDIE model and uses the design of the Unified Modeling Language (UML) which consists of Use Case Diagrams, Activity Diagrams, Squares Diagrams and as a programming language in making the application is expected to help solve existing problems. Furthermore, this application will be tested using the Black Box and User Acceptance Test. Based on the results of testing using the User Acceptance Test obtained a percentage of 86%. Then the test results using Black Box Testing obtained a 100% valid percentage.

Keywords
Educational Game; Augmented Reality; Android; ADDIE

Topic
Information Technology

Link: https://ifory.id/abstract/JZRwaEVnfbFW

Corresponding Author
adhi kusmantoro

Institutions
(a)Faculty of Engineering and Information, University of PGRI Semarang, Jl. Sidodadi Timur No.24, Central Java 50232,Indonesia
*adhiteknik[at]gmail.com
(b)Faculty of Engineering and Information, University of PGRI Semarang, Jl. Sidodadi Timur No.24, Central Java 50232,Indonesia
(c)Faculty of Mathematics and Natural Sciences Information Technology, University of PGRI Semarang, Jl. Sidodadi Timur No.24, Central Java 50232,Indonesia

Abstract
The source of electricity in each university building in PGRI Semarang is obtained from each distribution transformer or power transformer. The power transformer used to distribute electricity in the central building (GP) has a capacity of 400 KVA, while the power transformer used in the main building (GU) has a capacity of 160 KVA. In the previous study, identification of the quality of electrical power in the PGRI University Semarang building, obtained a low power data factor and a large electrical network harmonics. The problem was solved by designing and installing bank capacitors and harmonic filters. To avoid dependence on PLN electricity and not using a generator when PLN electricity goes out, the source of electrical energy is designed by using solar energy sources through Photovoltaic. Solar Panel as an important component of solar power plants, converts sunlight into electricity. Generally we calculate the maximum amount of sunlight that is converted into electricity throughout the day is 5 hours. Electricity in the morning is stored in the battery, so electricity can be used at night, where without sunlight. Based on the identification of the load in the GP is 26.12 KW, then in the design using solar energy as many as 27 solar panels are needed. As for the storage system uses 44 batteries 100Ah battery. Off-grid solar panel systems are only used when PLN electricity goes out or can be used at night. The research method used is observing the amount of electrical load, calculating the capacity of solar panels and batteries, and simulating the model using a Power Simulator.

Keywords
Solar Panel, Battery, PLTS off-grid, Charger Controller

Topic
Computer Engineering

Link: https://ifory.id/abstract/t7GvhbHCc2mB

Corresponding Author
Marti Widya Sari

Institutions
(a,b,c,d) Department of Mechanical and Industrial Engineering
Universitas Gadjah Mada
Yogyakarta, Indonesia

(a) Department of Informatics
Universitas PGRI Yogyakarta
Yogyakarta, Indonesia

*marti.widya.sari[at]mail.ugm.ac.id

Abstract
The application system in the industrial era 4.0 is currently growing rapidly. One of them is the implementation of smart manufacturing in the industrial sector. In smart manufacturing, production processes can be monitored automatically and real time, starting from material selection, then the production process to the planned product. In this study discussed the design of a monitoring system on smart manufacturing based on internet of things technology. Smart technology is implemented on material scans automatically based on color sensors, then from the material it will also be known that with these materials produce certain products and require any material. In addition, the system will also automatically detect through the initial material to find out which processes will be passed. The methods used include literature studies, system requirements analysis, system design and system testing. The results of this study are in the form of a hardware system design and display of production process monitoring system applications. In the system that is made also a notification is displayed if a bottle neck occurs in the production process.

Keywords
product, desgin; monitoring; smart manufacturing; internet of things

Topic
Information Technology

Link: https://ifory.id/abstract/nXw2NRfzHur8

Corresponding Author
Nugroho Dwi Saputro

Institutions
a) Engineering and Informatics Faculty, Universitas PGRI Semarang, Jalan Lontar No. 1, Semarang, Indomesia
*nugputra[at]upgris.ac.id
b) Engineering and Informatics Faculty, Universitas PGRI Semarang, Jalan Lontar No. 1 Semarang, Indomesia

Abstract
The lack of appropriate supporting media in learning at the age of children makes the young generation now less familiar and still having difficulty learning Javanese script (Aksara Jawa called in indonesia). For this reason, we need appropriate media in the introduction of Javanese script, one of which is through interesting educational games and can provide information about Javanese script. Games are forms of application that can be used as learning media where the process can be done with the concept of learning while playing for children. In this study the algorithm used was the Shuffle Random Algorithm. With this randomization algorithm, it is expected to avoid repetition of the problem so that the learning process can run effectively. Furthermore, this application was tested using the Black Box, White Box and User Acceptance Test. With the Black Box and White Box testing get a percentage of 100% while with the User Acceptance Test this application has an average of 86%, so it can be concluded that this educational game is feasible to be used as a learning medium for Javanese script.

Keywords
Javanese script, Educational Game, Randomization, Android, Shuffle Random

Topic
Information Technology

Link: https://ifory.id/abstract/mkUvbZPDJnyp

Corresponding Author
Noora Qotrun Nada

Institutions
Faculty of Engineering and Informatics
Universitas PGRI Semarang
Jalan Sidodadi Timur 24 Semarang Indonesia
*noora[at]upgris.ac.id

Abstract
The Open Group suggests that Enterprise Architecture (EA) can produce an IT blueprint that can be used to determine business, technology and information to support the achievement of the vision and mission of an organization. EA can also be seen as a model, a set of principles and methods used to produce an actual enterprise organizational structure with business processes used covering business operations, business planning, information technology and information systems. EA is also in the form of models, graphs and narratives that will explain the scope of business processes and designs of an enterprise. The purpose of this study is to design EA, especially in Koperasi Karyawan TEKAD Semarang using TOGAF framework. In other words, this architecture is created by emphasizing the relationship between IT and business. EA model is intended to maximize business alignment with IT in all situations, but depends on the nature of business and capacity in business and IT management in cooperatives.

Keywords
Enterprise Architecture, TOGAF, Koperasi

Topic
Information Technology

Link: https://ifory.id/abstract/2Ezam36kjyJV

Corresponding Author
MUCHAMAD TAUFIQ ANWAR

Institutions
Universitas Stikubank, Satya Wacana Christian University

Abstract
The presence of the internet and the rapid growth of social media had given rise to the blossoming of hoax creation and distribution through it. A hoax can cause anxiety and reactivity to its readers and could harm a certain party. Thereby, it is important to detect and report hoaxes to stop its spreading as soon as possible. This research aims to utilize the K Nearest Neighbor (KNN) classification algorithm to detect whether a piece of news is a hoax or not. Experiments were done by using 74 hoaxes compiled from Indonesian hoax-debunking community websites and were being compared against 74 real news from various reputable news websites in Indonesia. The result showed that the model could give detection/classification accuracy up to 83.6% and that the model is prone to false positives detections. The characteristics of the resulted model and further research directions are then discussed.

Keywords
hoax detection, fake news detection, Indonesian hoaxes, hoaxes in Bahasa, K Nearest Neighbor, KNN, Term Frequency, Term Document Matrix

Topic
Information Technology

Link: https://ifory.id/abstract/Mr9F8Gn4mUZw

Corresponding Author
Yoshiki Fujikawa

Institutions
Department of Advanced Materials Science,
Graduate School of Engineering,
Kagawa University

Abstract
Metal complex indicates the significant physical properties such as magnetism, electrical conductivity and an optical property due to the electronic interaction between the ligand molecule and the central metal ion. We have evaluated the magnetism of the metal complex by controlling the ligand field splitting, which is the energy splitting of the d-orbitals. The magnetic phenomenon of such compounds are realized as a result of the electronic state based on the transition metal coordination complexes, and which can be switched between high spin (HS) and low spin (LS), that is called a spin-crossover (SCO) phenomenon. Our group have been investigated the way how to control the spin state according to the concept of a distortion. The five-coordinated metal complex ML5 has been experimentally confirmed to be a molecular distortion called the Berry pseudorotation (BPR). In the BPR process, both the axial and equatorial ligands can move at the same rate of increasing the angle between the other axial or equatorial ligands in five-coordinated metal complex. The classical BPR mechanism changes its molecular symmetry between two independent trigonal bipyramidals (TBPs) of D3h symmetry via a square pyramidal (SP) of C4v symmetry. The distortion parameters 5 are proposed in order to represent the distortion of the BPR process quantitatively. In this work, we predicted the possibility of the SCO phenomenon in intramolecular exchange mechanism through the BPR process in a five-coordinated metal complexes. 　

Keywords
Spin-crossover, Berry pseudorotation, Five-cooridnated Metal complexes

Topic
DV-Xa Method

Link: https://ifory.id/abstract/jQVuDGtFEhe6

Corresponding Author
Takaki Nishimura

Institutions
1 Master course student, 1,2 Department of Advanced Materials Science, Graduate School of Engineering, Kagawa University, 2217-20 Hayashi-cho, Takamatsu, Kagawa 761-0301, Japan,
E-mail : s18g576[at]stu.kagawa-９u.ac.jp, Tell : +81-87-864-2414

3 Faculty of Engineering, Niigata University, 8050 Ikarashi 2 nocho, Nishi-ku, Niigata, 950-2181, Japan

4 Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama 700-0005, Japan

Abstract
Considering our lives, novel energy production is so required, and many scientists have been investigated this problem from a lot of views. One of the ways for the new energy productions is the solar power thermochemical production by an oxidation-reduction reaction of the ceramics CeO₂ (ceria). In this research, the ceria is used for obtaining an H₂ gas in vapor reaction in high-temperature thermal equipment which has a heat production system consisting by focused sun light. Nowadays technology has been also developed to keep a human living, not to harm the Earth environment. From these points, it is realized that how the H₂ gas is important for our lives, so we are trying to improve the thermochemical H₂ gas production by means of a ceria as a catalyst. Our purpose in this study is, to point out what effects occur in doped ceria-s thermal reduction (TR) reaction by using DV-Xα method. Comparing the models between the pure ceria and the Mn doped ceria, we have realized the difference by the reaction. In this appearance, one of the considerations is a view from p-DOSs (partial-Density of States), in which there are different O-2p DOSs by different crystal structures. From this view, we considered that the ceria structure would become more stable and more flexible to cut the Ce-O bonding to keep the stable cyclic thermal reaction in Mn doped ceria.

Keywords
Ceria, H₂ gas, Thermal reduction (TR) , Mn doped ceria

Topic
DV-Xa Method

Link: https://ifory.id/abstract/zyGu7n8MtBjf

Corresponding Author
Yoshiyuki Kowada

Institutions
a) Hyogo University of Teacher Education
942-1 Shimokume, Kato-shi, Hyogo 673-14, JAPAN
* ykowada[at]hyogo-u.ac.jp
b) Department of Applied Chemistry, Osaka Prefecture University
Gakuen-cho 1-1, Nakaku, Sakai 599-8531, JAPAN

Abstract
All-solid-state batteries are expected as the next generation secondary batteries for their higher energy density, in-flammable properties, and so on. In order to develop these batteries, there are several problems to improve. One of them is the lower ionic conductivities of the solid-state electrolyte. In order to improve the ionic conductivity, electronic states of the sulfide-based alkali-ion conducting solid-state electrolyte were calculated by the DV-Xα cluster method. The cluster models were constructed by the coordination number reported by experimental methods and the bond length estimated from the ionic radii of each ion. The movement of the Li ion was simulated by several model clusters with different positions of the moving ion. The relationship between ionic conductivity and the differential total bond overlap population (DBOP) of the moving ion was discussed for the sulfide-based solid-state electrolytes in the several different systems. In any cases, the smaller change of DBOP of the moving cations played an important role for the fast ion movement in the solid-state electrolytes. This bonding state of the moving cations is one of the characteristics of the electronic state in the sulfide-based solid-state electrolytes.

Keywords
all-solid-state battery, solid-state electrolyte, bonding state analysis, DV-Xα method

Topic
DV-Xa Method

Link: https://ifory.id/abstract/HBXYje3qzkW6

Corresponding Author
Aris Tri Jaka Harjanta

Institutions
Universitas PGRI Semarang

Abstract
Sentiment Analysis is now very important and very useful in machine learning technology where a contextual mining of text to identify and extract subjective information in the source, and in helping to understand social sentiment from comments In general, sentiment analysis can be classified into three broad categories namely sentiment positive and negative. One method of machine learning is the Deep Belief Network (DBN). DBN which is included in the Deep Learning method, is by stacking several algorithms with several extraction features that utilize all resources optimally. This research has two points. First, it aims to classify positive, negative, and neutral sentiments for the test data. The following experiments provide a system of sentiment analysis through the naive Bayes algorithm to calculate sentiment and to improve accuracy by reducing noise in words applied in Indonesian language.

Keywords
Sentiment Analysis, Machine Learning, Naive Bayes

Topic
Computer Engineering

Link: https://ifory.id/abstract/pkNtAQ47FgRc

Corresponding Author
Benjamin Walker

Institutions
University of Missouri - Kansas City

Abstract
Computation of highly-localized multiplet energy levels of transition metal dopants is essential to the design of materials such as laser host crystals. A purely first-principles density functional theory-configuration interaction (DFT-CI) hybrid computational method has been developed to accurately compute multiplet energy levels for single atoms of carbon, nitrogen, oxygen, sodium, aluminum, silicon, titanium, and chromium. The multiplet energy levels have been computed with close experimental agreement in terms of magnitude and degeneracy, and the method does not depend on empirical information (i.e. Racah parameters). The computed multiplet energy level results are distributed according to term symbols, which are then compared to experimentally-observed multiplet energy levels. The hybrid method consists of analytic computation of two-electron integrals via the DFT-based orthogonalized linear combination of atomic orbitals (OLCAO) method, which are subsequently used as input for the CI-based discrete variational multi-electron (DVME) method to obtain the multiplet energy values.

Keywords
exchange-correlation; elecron repulsion integral; multiplet; DVME; OLCAO; density functional theory; configuration interaction

Topic
DV-Xa Method

Link: https://ifory.id/abstract/XJfKkQVz7WAE

Corresponding Author
Khoiriya Latifah

Institutions
Universitas PGRI Semarang

Abstract
Bamboo is an environmentally friendly material. Many benefits of bamboo that we can get. For example, as an environmentally friendly fiber for textile materials, other craft construction materials. Bamboo has fiber content, including fiber length, inter-fiber adhesive, namely lignin and the higher diameter of bamboo fiber, making bamboo stems stronger and stiffer, so bamboo quality is getting better Image processing is an objective method for classification of bamboo. Segmentation is the most important step in image processing. In this study the authors used segmentation using color segmentation. From the color texture, it will be known the shape of the bamboo fiber, what is the size of the fiber in the bamboo. This study uses 3 types of bamboo for classification based on color segmentation on bamboo using fuzzy c means clustering.

Keywords
Bamboo, Segmentation, Fuzzy C Means Clustering

Topic
Computer Engineering

Link: https://ifory.id/abstract/jMGt4C67NXFZ

Corresponding Author
Takuhiro Yamamoto

Institutions
Department of Advanced Materials Science,
Graduate School of Engineering
Kagawa University

Abstract
The physical properties of metal complexes that are present in many places are due to the ligand field splitting of the d-orbital of the central metal ion, and the series representing the relationship of the ligand field splitting is called a spectrochemical series. This spectrochemical series represents the relationship of the ligand field splitting in the octahedral hexa-coordination structure, but no equivalent index has been shown in the tetrahedral four-coordination complex. In this study, we have investigated the creation of a novel spectrochemical series in tetrahedral four-coordinated metal complexes. As a result, it is possible to accurately understand the ligand field splitting of the tetrahedral four-coordinated metal complex, and to more effectively apply the energy for obtaining a spin crossover phenomenon in which the magnetic spin state reversibly changes. As a research flow, first, a tetrahedral structural model is created, and then the ligand field splitting is calculated using the DV-Xa method to create a spectrochemical series. As a result, we succeeded in creating a spectrochemical series of tetrahedral metal complexes. It has been found that the spectrochemical series of tetrahedral four-coordination complexes tend to hold as they are in octahedral hexa-coordination complexes to some extent, but there are cases where the series does not hold according to the peculiarity in the case of the four-coordinated metal complex.

Keywords
Spectrochemical Series, Four Coordination Complex

Topic
DV-Xa Method

Link: https://ifory.id/abstract/3m7w2c9UMHyQ

Corresponding Author
Rika SEKINE

Institutions
Department of Chemistry, Faculty of Science, Shizuoka University
836 Ohya, Shizuoka, 422-8529, Japan

Abstract
Structure and stability of the gold cluster ions of which skeleton are synthesized as a complex was analyzed using the Hückel method based on graph theory. Hückel Energy (HE) and Topological Resonance Energy (TRE) were determined for neutral, positive ion, and negative ion clusters, where all the isomers of the gold cluster up to octamer were considered. Since some graphically designed isomers include bonds that can not be realized in three-dimensional space, the screening was carried out by a molecular force field calculation with LAMMPS (lammps.sandia.gov/.). Among the isomers thus obtained, both HE and TRE were most stable when the tetramer was Au_4^{2+} with a tetrahedral structure, and with the hexamer, Au_6^{2+} with two tetrahedrons sharing one side. The complexes with these structures have actually been synthesized. On the other hand, there is no reported synthetic example of the most stable cluster of octamer Au8 with TRE and HE.

Keywords
Graph Theory, Hückel method, Gold Cluster

Topic
DV-Xa Method

Link: https://ifory.id/abstract/43NxJGtwh9rm

Corresponding Author
Mei Sulistyoningsih

Institutions
Universitas PGRI Semarang

Abstract
Duck is one of the food sources consumed by Indonesians from all levels as an enormous source of protein and fat for all ages. This research aims to recognize the interaction between a variety of ginger (Zingiber officinale) in both automatic feeder and manual by observing the level of glucose and cholesterol. The research applied RAL experiment design using 2 x 2 factorial pattern with factor A as providing Zingiber officinale and Zingiber officinale Rosc. while factor B as using automatic feeder and feeding manually with 3 repetition. The treatments used in the experiment are J1P1 (feed + Zingiber officinale 2% + automatic feeder), J1P2 (feed + Zingiber officinale + manual feeder), J2P1 (feed + Zingiber officinale Rosc. 2% + automatic feeder), J2P2 (Feed + Zingiber officinale Rosc. 2% + manual feeder). The subject of the research was DOD (Day Old Duck) from Magelang which was raised since three days old up until the age of 8 weeks for sampling. The result of the research showed no interaction between feeding the ducks with Zingiber officinale or Zingiber officinale Rosc. using both automatic and manual feeder to the level of glucose and cholesterol in the ducks- blood (P > 0.05). The highest level of glucose came from J2P2 which consisted of feed + Zingiber officinale Rosc. + manual feeder reaching an average of 186 mg/dl. Meanwhile, the highest level of cholesterol was also reached in J2P2 with an average of 125.67 mg/dl.

Keywords
Zingiber officinale, Zingiber officinale Rosc., feeder, glucose, cholesterol

Topic
Biology

Link: https://ifory.id/abstract/Uc29GWk6LgbT

Corresponding Author
SULISTYANING KARTIKAWATI

Institutions
Universitas PGRI Madiun

Abstract
Interaction Analysis Application of Arduino Industrial Automation Trainer Based on Project to Improve Cognitive Ability and Bodily Kinesthetic Ability S. Kartikawati1, 2, S. Nita,3 1Program Studi Pendidikan Teknik Elektro, FKIP, Universitas PGRI Madiun Jl. Setiabudi No. 85 Madiun 2kartikawati@unipma.ac.id 3Program Studi Teknik Informatika, FT, Universitas PGRI Madiun Jl. Setiabudi No. 85 Madiun Abstract: This research aims to determine the interaction/influence of the application of Arduino Industrial Automation trainer based on projects to enhance cognitive abilities and bodily kinesthetic abilities. college student This research is in the form of quantitative descriptive research. The sample used in this study is one class taken using Saturated Sampling techniques. The research class was treated by using a project-based Arduino Industrial Automation trainer. The independent variables in this study are project-based Arduino Industrial Automation trainer, while the dependent variable is cognitive abilities and bodily kinesthetic abilities.. There are 3 kinds of analysis techniques, namely instrument analysis techniques, prerequisite analysis techniques, and hypothesis analysis techniques. The measured research data are cognitive ability data and bodily kinesthetic ability data. The analysis of the hypothesis test of this study used the T-Test with a significance level of 5%. T-Test Criteria are as follows, Ho is accepted / H1 is rejected if T count is smaller than T table and Ho is rejected / H1 is accepted if T count is greater than T table. From the results of the instrument test, namely the validation test, there are 75% questions stated valid. For the prerequisite test for the normality of cognitive abilities and bodily kinesthetic abilities on the pretest and posttest obtained L count < L table means the sample is normally distributed. For the prerequisite test for homogeneity of cognitive abilities and bodily kinesthetic abilities obtained F count < F table means the sample is homogeneous. The results of the T test for the first dependent variable cognitive ability obtained T count = 24.41 and T table = 1.697, because T count is greater than T table then Ho1 is rejected, meaning that there is an interaction/influence of the implementation of the Arduino Industrial Automation trainer based on projects in improving cognitive abilities. While the results of the T test for the dependent variable bodily kinesthetic ability obtained T count = 18.33 with T table = 1.697, because T count is greater than T table then Ho2 is rejected, it means that there is an interaction/influence of the application of the Arduino Industrial Automation trainer based on the project in increasing bodily kinesthetic abilities. So that it can be concluded that there is an interaction/influence of the application of the Arduino Industrial Automation trainer based on projects in improving cognitive abilities and bodily kinesthetic abilities. Keywor

Keywords
Industrial Automation Trainer, Arduino, Project, Cognitive, Bodily Kinesthetic.

Topic
Information Technology

Link: https://ifory.id/abstract/mzgacGRHwNZQ