bluuebunny/crossref_metadata_2025_split huggingface dataset:
Chemical Separation and Antibacterial Activity of Nutmeg seed Essential Oil against Shigella sp. and Escherichia coli ATCC 25922
Authors: Ansory Hery Muhamad , Fitriani Ika Nur , Nilawatii Anita 
Published: May 2020

Abstract
The essential oil of the nutmeg seeds has antibacterial activity and contains some major compounds: sabinene, α-pinene, 2-β-pinene, myristicin, safrole, and 1-4-terpineol. This essential oil was extracted from the nutmeg seeds by separation process using the distillation method. The purpose of this study is to separate compounds in essential oils of nutmeg seed and to evaluate the antibacterial activity against two bacterial species. Nutmeg essential oils compound separation was conducted by distillation at 95 mmHg with different temperature 408, 428, 438, and 503 K. The separation results analyzed physical properties, chemical compounds with GC-MS, and the antibacterial activity test of Shigella sp. and Escherichia coli ATCC 25922 using dilution and diffusion method. The samples antibacterial activity were evaluated by the determination of minimum inhibitory concentration. The GC-MS analysis of nutmeg essential oils shows the presence of 25 compounds. Four fractions of fractional distillation under reduced pressure have 57.12%; 17.00%; 1.40%; and 19.68% of yield with different physical properties as well as the number of different compounds in each fraction. Fraction 1 has 14 compounds with α-pinene (27, 44%), sabinene (23,78%), dan 2-β-pinene ( 18,29%) as major compound. Fraction 2 has 15 compounds with sabinene (16,18%), 2-β-pinene (14,27%), β-phellandrene (12,99%), dan γ-terpinene (14,48%) as major compound. Fraction 3 has 12 compounds with α-terpinene (11,24%), para-cymene (23,74%), limonene (13,23%), γ-terpinene (23,46%), dan α-terpinolene (15,01%) as major compound. Fraction 4 has 12 compounds with 1-4-terpineol (40,65%), safrol (20,34%) danmyristicin (16,06%) as major compound. Results showed that MIC and MBC on Shigella sp. nutmeg essential oils had 12.11mm inhibitory effects at 1.25%; fraction 2 has 5.88mm inhibitory effects at 2.5%, and fraction 4 has 9.67mm inhibitory effects at 1.25%. MIC and MBC in Escherichia coli ATCC 25922 nutmeg essential oils have 10.89mm inhibitory effects at 2.5%; fraction one has 10.22mm inhibitory effects at 10%, and fraction 4 has 10.11mm inhibitory effects at 2.5%.
Improvement Development of Bill Acceptor for Laundry Application with Internet-of-Thing as Notification
Authors: Ismail Edzwan , Abd Gani Shamsul Fakhar , Zainal Abidin Amar Faiz , Tengku Ibrahim Tengku Nadzion , Semail Saifuddin 
Published: May 2020

Abstract
Nowadays, self-laundry kiosk service has been widely available in Malaysia. Although the technology has been progressing rapidly especially the technology of Internet-of-Thing, most of the system used by the self-laundry machines are outdated. One difficulty faced by the owners of the self-laundry kiosk, they need to check frequently by themselves at their cashbox machines in order to check whether the cashbox filled or emptied. This leads to inefficiency and can be addressed if self-laundry machine is integrated with Internet-of-Thing technology. Thus, this project attempts to improvise the current system by developing the bill acceptor that gives the owner to monitoring the flow of current amount inserted by customer in real time by displaying it in apps at owner smartphone. The project uses Arduino Mega as a controller, bill acceptor machine as token receiver, Wi-fi module to send the data to apps, LCD and Blynk apps to display the current amount and Bluetooth module to communicate between the Arduino and the washing machine. A checklist analysis and scenario analysis are implemented to verify the functionality of the proposed prototype. The result shows that the proposed prototype achieve all the objectives required.
The Analysis of Fuzzy Logic Method and Multiple Linear Regression in Determining National Rice Production to Improve Food Self-Sufficiency in Indonesia
Authors: Sari Yulia Retno , Ananda Lidya Rizki , Rani Maha 
Published: May 2020

Abstract
Indonesia in 2023 targets rice self-sufficiency. To be included in the category of rice self-sufficiency, Indonesia’s total rice production should be 82 million tons in accordance with Government Regulation No.2 of 2015. The amount of rice production is uncertain. One way to calculate uncertainty in forecasting is by using the Fuzzy Logic of the Mamdani method and the Linear Regression of the Least Squares method. In the Fuzzy Logic Mamdani method there are 4 steps namely; 1) Fuzzy set formation; 2) Application of Implication functions; 3) Composition of Rules; and 4) Defuzzification. Rice Harvested Area, Rice Production and National Rice Consumption are the input variables and National Rice Production is the output variable. The data used are secondary data from the Central Statistics Agency (BPS) and the Ministry of Agriculture Annual Report 2006 - 2017. The data analysis process also uses matlab and minitab software. From the research results obtained that the Fuzzy Logic of the Mamdani method and the Linear Regression of the Smallest Square method can be used to predict the amount of national rice production. For the results of predictions of Fuzzy Logic the Mamdani method has a relatively large error compared to the Linear Regression of the Smallest Squares method. Furthermore it is also known that there is a significant relationship between harvested area and consumption. These two variables will be the determining factors for realizing rice self-sufficiency in Indonesia.
The Implementation of IoT (Internet of Things) for Controlling Cow Health
Authors: Prabowo Cipto , Mauliadi Rafki , Afdal  , Johan  , Zurnawita  , Alanda Alde , Rozi Fazrol 
Published: May 2020

Abstract
Livestock health management is a major factor in the sustainability of cattle farms. However, health care for livestock by veterinarian costs lots of time and money. The purpose of this study was to develop an android IoT device for cow physiological health management through detection of cow temperature, heart rate and breathing rhythm. This device is built based on a microcontroller. By using the concept of IoT to send data, then the information generated on the device will be displayed directly to the android application. Three adult cows were measured using android IoT device compared to conventional measurement methods as controls. This procedure was carried out for morning (06:30-09:30 am), afternoon (11:00-01:00 pm) and evening (04:30-05:30 pm). Independent sample t-test was used to determine whether there were significant differences between Android IoT device and conventional measurement method. The results show that there is no significant difference between the two methods for temperature (t(58) = -0.191, p = 0.849) and heart rate (t(58) = -0.459, p = 0.648). Utilization of device makes it easy for cattle farmers to monitor cow health regularly at economical prices and provide remote information. Furthermore, this device needs to be tested on types of ruminants such as goats, sheep and buffaloes.
Study on Impedance Matching of 2.4 GHz Dipole Antenna
Authors: Firdaus  , Monica Larra , Yustini  
Published: May 2020

Abstract
Understanding on matching impedance between feedline and load is important in many aplication. Theoritically, matching impedance can be calculated easily if charateristic impedances both load and line is known. Practically, when we do impedance matching at certain frequency we face a problem if the impedance of the feedline and antenna are unknown. by using vector network analyzer and anechoic chamber we tried to study and to approach the impedance match through measurement of return loss, VSWR, and antenna radiation pattern. The results of studies have shown that adjusting dipole antennas to lines can be done by optimizing antenna and lines length and subsequently optimizing the use of balun. In this reasearch we optimized 2.4 GHz dipole antenna and matched it to feedline by using bazooka and balun 1 : 1. To achieve good matching, the antenna length is 0.35 λ and the feedline length multiplies 0.5 λ. The length of the bazooka and balun for the best impedance adjustment are 0.25 λ and 0.2λ.
Implementation Of Wireless Sensor Network For Four sensors On Natural Disaster Early Warning System
Authors: Suryadi  , Zuradi Marta , Angraini Tuti , Devy Laxsmy 
Published: May 2020

Abstract
Wireless Sensor Network (WSN) is likely to be implemented as a long-range transmission network for sensor data to detect potential natural disaster like flood, landslide, and soil liquefaction. The sensor parameters: for example rainfall, soil humidity, vibration, type of soil, and so forth were sent from the location at which natural disaster potentially occurs and were forwarded to data center in real time for further analysis and observation. Therefore, the natural disaster which potentially occurs in the area was easily detected by the parameter of nodes that were gathered in server. When sensor detected the sign of natural disaster, the information would be conveyed through WSN to information center and was broadcasted to society as an early warning of natural disaster such as flood, landslide, soil liquefaction, etc. Such information was automatically broadcasted to society and was adjusted to the impending circumstance e.g. secure, cautious, and warning. By the implementation of WSN technology as an early warning system, it is expected to information concerning natural disaster is broadcasted accurately and rapidly to society, hence society can take quick action and response to natural disaster.
Computational study of action potential initiation and action potential backpropagation in mitral cell of the olfactory bulb
Authors: Yuniati A , Ardiyanti A D 
Published: May 2020

Abstract
A neuron sends information in the form of electrical activity called an action potential. The action potential propagates along the axon to all parts of the cell body. The opposite phenomena of this mechanism were observed in the neurons from various brain area as action potential backpropagation. We studied computationally the action potential initiation and action potential backpropagation in the model of a mitral cell of the olfactory bulb that consists of soma, primary dendrite, secondary dendrite, tuft dendrite, axon hillock, and initial segment. The neuronal activity was constructed with voltage-dependent sodium channels and potassium channels. In the results, we provide that the action potential initiation occurs in soma with an amplitude of 40 mV and the action potential propagation decrease as the distance gets farther from the soma. By plotting the amplitude as a function of the distance from the soma, we obtain the magnitude of action potential backpropagation amplitude has an average of about 42.7 mV. This result consistent with observations in experiments where the normalization of action potential backpropagation amplitude of the mitral cell as a function of the distance from the soma is constant.
Smart City Recommendations Using the TOPSIS Method
Authors: Nasution Nurliana , Bhawika Gita Widi , Wanto Anjar , Ginantra Ni Luh Wiwik Sri Rahayu , Afriliansyah Teuku 
Published: May 2020

Abstract
This study aims to recommend a city that is suitable as a Smart City on the island of Sumatera. This study uses a Decision Support System with the TOPSIS (Technique For Others Reference by Similarity to Ideal Solution) Method. The TOPSIS method is one method that is often used for ranking problems. The research data used are data from 10 major cities on the island of Sumatera. with the largest population in 2019 obtained from the Wikipedia Website (https://www.wikipedia.org/wiki/Sumatra) and the Central Statistics Agency website (https://www.bps.go.id/) as a reference in determining the assessment of each Alternative later. The 10 major cities are Medan, Palembang, Bandar Lampung, Pekanbaru, Batam, Padang, Jambi, Bengkulu, Banda Aceh, and Pematangsiantar. To be able to determine and recommend cities in the islands of Sumatera that are eligible to become Smart Cities, there are 4 criteria as an assessment of each Alternative, namely, Infrastructure, Population, Area, and Economic Level. Based on calculations using the TOPSIS method, the results obtained that the city of Medan has the highest value in the eligibility to become a Smart City.
Improved of Smart Vacuum Flask with Beverage Identifier and Temperature Indicator
Authors: Apok Mario Anak , James Wilzy Anak , Abidin Amar Faiz Zainal , Hasim Saipol Hadi , Omar Nor Haizat , Ibrahim Tengku Nadzion Tengku 
Published: May 2020

Abstract
Vacuum flask has been an essential part of the everyday life of a working person. Nowadays, vacuum flask is not the only function as a liquid carrier but also has been equipped with technology to diversify its function from the essential function. This paper proposes to create a smart vacuum flask that able to classify the beverage type and indicate the temperature range of the beverage. This is attempted to address the user difficulty in remembering the type and temperature of the beverage inside the vacuum flask. This project is built using Arduino as the microcontroller, while LM35 is used to read the temperature sensor. A simple concept of tomography using LDRs and LEDs is used to determine the beverage type. The flask is tested to test nine scenarios: 1) cold and clear beverage; 2) warm and clear beverage; 3) hot and clear beverage; 4) cold and juice beverage; 5) warm and juice beverage; 6) hot and juice beverage; 7) cold and milk beverage; 8) warm and milk beverage; 9) hot and milk beverage. The result obtained indicates that the prototype able to classify all nine scenarios correctly.
The Design Of Wheelchair Systems With Raspberry Pi 3-Based Joystick Analog And Voice Control
Authors: Madona Putri , Nisa Husna Khairun , Wijaya Yusmar Palapa , Akhyan Amnur 
Published: May 2020

Abstract
In this study, an electric wheelchair that combines two controls: joystick analog and voice control is designed. IC MCP3008 is used to navigate wheelchairs by using Josytick, where joystick analog data will be converted into digital data. The movements resulted from the joystick analog on the xAxis axis (horizontally) are the right turn and left turn, and on the yAxis axis (vertically) are forward and backward. The movements on the yAxis and xAxis axes set by the user affects the speed of the wheelchair. Meanwhile, the AMR-Voice application on Android is used to navigate wheelchairs by using sound. There are five commands in this voice control: “Forward”, “backward”, “left”, “right”, “stop”. The order will be sent to Raspberry Pi 3 via the HC-06 module to then be recognized for the command. If the voice commands are received accordingly, Raspberry Pi 3 will provide an activation signal to the motor driver to move the wheelchair in the direction corresponding to the command given by the user. Voice control testing on wheelchairs is tested in quiet rooms and noisy rooms. The results of the wheelchair control testing with sound indicate that the accuracy and speed of the wheelchair response rely heavily on Internet connection and room conditions. The average response when the condition of the room is quiet is 0.16 s and when the condition of the room is noisy is 5.18 s. Wheelchairs with joystick control and the voice made can be used for the disabled, whether for those who can move their fingers or not, at a low cost so that they can be an alternative in developing countries.
Intratextual Factors in Source Text Trimming for Indonesian-English Machine Translation
Authors: Mujiyanto Yan 
Published: May 2020

Abstract
Source text analysis is a crucial phase in the translation process. Several issues are proposed by experts in this particular field of study. Nord [1], for instance, proposes that this phase may be constrained by two types of factors, i.e. extra-textual and intra-textual ones, the latter consisting of eight factors which need consideration, i.e. subject matter, content, presuppositions, text composition, non-verbal elements, lexis, sentence structure, and suprasegmental features. This paper aims to consider the importance of each of the eight factors as the basis of trimming academic manuscripts in Indonesian before their mechanical rendering to English for international publication. The object of this study was 50 manuscripts in Indonesian prepared for the publication. The manuscripts were analyzed taking the eight factors into account. The trimming process, which refers to a process of making a text tidier for inter-lingual rendering, is applied to the texts considering the issues so as to be more ready for the translation. The effectiveness of the process is shown by means of comparing the results of rendering the original texts and the trimmed ones assuming that the latter is more qualified than the former. Given that the intra-textual factors are relatively influential in source text analysis for trimming purposes, it is suggestible to consider them as a supplementary procedure for the mechanical rendering of academic manuscripts in Indonesian prior to their translation to English.
Capacitor discharging calculation application based on android
Authors: Kartika Wisnu , Loniza Erika , Safitri Meilia 
Published: May 2020

Abstract
At this time, there were many small components to make electronic equipment such as TVs, smartphones and others. This electronic equipment uses passive components and active components. The physical size of the capacitor decreases gradually becoming smaller. Capacitors store energy in the form of charge. If there are two equal charges (for example a positive charge and a positive charge) then both charges will refuse. Conversely, if there are two different charges, they will attract each other. The purpose of this research is to create an Android-based software that can calculate the remaining charge after the discharging process. The method used is to use the calculation method of discharging capacitors. The results of this study found that the calculation can be done well and also the presence of errors in the software design process.
Seismic microtremor experiment to determine seismic vulnerability of North Aceh
Authors: Banyunegoro V H , Muksin U , Idris Y 
Published: May 2020

Abstract
North Aceh is an area in Aceh, Indonesia, which is crossed by the active Lhokseumawe Fault. The existence of Lhokseumawe fault makes North Aceh relatively vulnerable to seismic hazard. The seismic vulnerability consists of two main components, natural frequency and amplification factor. Microtremor measurement is necessary in order to obtain natural frequency and amplification factor of certain area. A microtremor experiment has been conducted to understand the seismic vulnerability in north Aceh. The seismic microtremor has been measured at 30 sites which are located relatively evenly in the Lhokseumawe City. The measurement result is processed using Horizontal to Vertical Spectral Ratio (HVSR) method to obtain the main components of seismic vulnerability. The natural frequency and amplification factor are able to be calculated. The seismic vulnerability index calculated form natural frequency and amplification factor is also successfully calculated. The area located in the south of the Lhokseumawe Fault is seismically more vulnerable which is also correlated with the rock’s formation of the area. The results are still preliminary that needs more information from the seismic wave velocity representing the characteristics of rocks or soils.
First-Order Fuzzy Time Series based on Frequency Density Partitioning for Forecasting Production of Petroleum
Authors: Wulandari R. , Farikhin  , Surarso B , Irawanto B 
Published: May 2020

Abstract
Forecasting method based on fuzzy time series has been widely developed in recent years. In this paper, we propose a new improvement at determining universe of discourse, variation historical data and partitioning stage. At early stage, we define the universe of discourse then calculate the basis value to find out how much interval should be used with variatin historical data. Secondly, we are partitioning the main intervals into several numbers of sub-intervals. The empirical analysis shows that sub-interval caused the fuzzy number getting closer to crisp value. It causes the better forecasting value. We use the data of yearly production petrolium Indonesia for simulation. We compare the forecasting results and error value of the method with previous existing methods The modifications give better forecasting results than previous methods indicated with smaller The Means Squared Error (MSE) and Average Forecasting Error (AFER).
The Integration of Retention Pond And Composite Sluice in Flood Prevention in Makassar City
Authors: Singgih Hanna 
Published: May 2020

Abstract
in 2018, Badan Pengkajian dan Penerapan Teknologi (BPPT) has developed composite sluice for controlling flood goals. The integration of retention pond and composite sluice deemed necessary to be analyzed as the integrated system as a flood disaster mitigation effort. This study aims to give a brief overview of the suitable retention pond capacity, which is integrating with composite sluice as a flood prevention effort. The retention pond designed in this study requires rainfall data, land use data and topography map. This study method uses empirical formulation based on statistical parametric on hydrology analyze and hydraulic analyze as a basis of retention pond capacity calculation and composite sluice as flood controller. The result of this study are; the maximum flood discharge in 10 years return period is 103,28 m3/s, while the riverbed discharge capacity with 8 meters width is 68,29 m3/s. To prevent flooding the retention pond volume with capacity volume in 1.117.214,24 m3 has required. In sluice practical width calculation for the retention pond, the resulting amount is 28,70 meters. It takes 32 units of composite sluice if the current needs to be maintained. The side composite sluice width has obtained 1 meter while the total composite sluice building width with four units for the retention pond is 6,4 meters.
What is Effective Use of Big Data? The Consensual Definition of Effective Use of Big Data
Authors: Sejahtera Surbakti Feliks P 
Published: May 2020

Abstract
Big Data has attracted significant attention in recent years due to its potential. The use of Big Data is believed to be another source of competitive advantage for organizations. A leading organization in the future is an organization that can use Big Data effectively. However, what constitutes effective use of Big Data remains elusive and evidence suggests that most Big Data projects fail to deliver on their expectations and that executives are slow to adopt Big Data. Existing Engineering Management and Information Systems research have explored effective use in a variety of contexts; however, it is yet to specifically consider the unique characteristics of Big Data. Accordingly, there is a need for rigorous study on what the core of the concept of effective use of Big Data. The aim of the study is to understand better the effective use of Big Data. A multiple case studies approach is followed in the investigation. Eight organizations from private and public organizations were investigated. Data were gathered primarily using semi-structured interviews and through document analysis. The study results show the core of the concept of effective use of Big Data.