bluuebunny/crossref_metadata_2025_split huggingface dataset:
Automation Process to Support an Information System on Extreme Weather Warning
Authors: Tamamadin M , Susandi A , Pratama A F , Faisal I , Wijaya A R , Firdaus I M , Kuntoro W S 
Published: May 2020

Abstract
Hydrometeorological hazard early warning system has been developed in order to support public society in anticipating the extreme weather in Indonesia. Meanwhile, the early warning system in Indonesia still produced locally and need arduous human resources to process the enormous size data to have a good quality early warning. Therefore, in order to increase the effectivity, efficiency, and efficacy of the early warning system to produce the desired result, the automatic process was needed. This study will explain further the mechanism of process automation from the weather forecast to the output of warning displayed in an information system. The automation process combines several scripting in Python and batch script for GIS processing, as well as process scheduling using task scheduler. The output of extreme weather warning is in form of JSON files stored in organized folder directory. The automated process proven to be more useful in increasing the effectivity, efficiency, and efficacy of the early warning system to produce the desired result and later the automated process could be enhanced further to boost the lead time and reducing the arduous task in producing the early warning system.
The algorithm of diagnosing the development of a skid when driving a two-axle vehicle
Authors: Antonyan A , Zhileykin M , Eranosyan A 
Published: May 2020

Abstract
Vehicle controllability and stability are the most important operational properties and components of active traffic safety, improving these qualities around the world are given great importance. One of the major challenges when designing algorithms for active safetyvehicle systems is obtaining reliable information about the quantitative vehicle parametersvalues, allowing to judge how these parameters match the specified driver, to predict theemergencysituations incident moment and diagnose these situations (e.g., front or rear axles kidding, the tipping risk, etc.). One of the most common parameters used in practice, characterizing themultiaxial wheeled vehiclesmotion conditions, is thevectordeviation angle of the vehicle center of gravity (CoG) actual velocity from the vector of its theoretical (kinematic) speed. However, determining the actual velocity vector direction of the CoGis associated with great computational difficulties due to the need to build complex predictive Kalmanfilters. A method for determining the two-axle wheeled vehiclesmotion parameters to ensure the dynamic stabilization system operation, allowing reliable and economical diagnosis of skid front or rear axles of a two-axle vehicle.
Stabilization of the loading characteristics in the durability analysis of thesuspension components of tracked vehicles
Authors: Dubin D , Gadolina I , Khusnetdinov T 
Published: May 2020

Abstract
For a reasonable and reliable assessment of durability at the design or operation stage of the tracked vehicles, it is required information about the loading process, which is usually obtained by registering the load by various methods, such as strain measurement. For a reliable assessment of loading and, consequently, durability, the question arises about the representative length of the loading process recording. The paper proposes a method for determining the necessary and sufficient realization length using various methods of processing of the recorded random loading realization. The efficiency of the proposed method is demonstrated by the example of the evaluation of the random loading processes in torsion shafts of the suspension systems of a high-speed tracked vehicle. The justification of the necessary and sufficient length of the record of the random loading process is given.
Special aspects of the test of ATV equipped with the electronic engine management system Continental M3C on a dynamometer test bench
Authors: Ilyushin D , Salikin Y , Shekhovtsov V , Diakov A , Evseev K 
Published: May 2020

Abstract
In this article the problems of taking characteristics of the power plant of BRP Can-Am Outlander max 570 at its loading on a dynamometer test bench DynaPack are considered. The possibilities of using input and output electrical signals of sensors and actuators of the electronic engine management system Continental M3C, including the use of third-party electronic engine management unit M74CAN cars VAZ. The schematic solutions for obtaining the value of the engine crankshaft speed of the ATV by the standard software of the DynaPack dynamometric stand are proposed. Based on the analysis of the developed circuit solutions, as well as the features of loading, power plant in general, and the engine in particular, on the dynamometer test bench DynaPack decided to use the fuel injector control signals to determine the speed of the crankshaft engine. To increase the stability of the results of the series of experiments, a method of monitoring the position of the engine throttle valve was proposed. In conclusion, the speed characteristics of the BRP Can-Am Outlander max 570 quad bike power plant at various levels of opening the throttle valve are shown.
Increasing the smoothness of the course of the forage harvester by optimizing the mass-dimensional and inertial parameters of its body
Authors: Zhileykin M , Sirotin P 
Published: May 2020

Abstract
The scientific-methodical substantiation and practical recommendations on stabilizing the movement of forage harvesters are proposed. Calculation of optimal mass and inertial parameters of the hull, as well as elastic properties of tires as the main element of the combine suspension system is theoretically grounded. The developed technique on the example of the combine prototype shows the possibility of calculating the optimal stiffness of tyres and weight of additional counterweights installed in the base of the machine to ensure the equality of natural frequencies of front and rear axle oscillations on elastic tyres. The modeling of the combine’s movement on the subsoil road and asphalt concrete highway with different speeds has been carried out on the basis of mathematical and imitation model of the combine developed by the authors earlier. In the order to evaluate the efficiency of the proposed method of improving the smoothness of running the comparison of peak and mean square values of the pitch angle of the hull, as well as the levels of vertical vibroaccelerations in the cabin on the floor under the seat of the operator of the combine in its basic design and improved version due to the use of counterweights of a given mass and optimized stiffness of tires. A simulation was used to perform an octave analysis of the workplace vibration load. It is shown that optimization of mass and inertial parameters of the body, as well as elastic properties of the combine harvester tires on the main driving modes provides improvement of comfort of the operator’s working place, especially in the most dangerous for human frequency range. The driving modes are defined, on which the best effect of rework is achieved. The stabilization process is described. The conclusions on the direction of further research are presented.
Vehicle vibration safety estimation area
Authors: Zheglov L , Fominykh A 
Published: May 2020

Abstract
It is known that the problem of mathematical modeling of the car vibration isolation system can be solved in the frequency and time domain. As the primary vehicle vibration isolation system has non-linear elements, the question arises: how does the linearized dynamic system solution in the frequency domain corresponding to the calculations of the accepted parameters in the time domain? The problem is solved at random kinematic perturbation from the road surface. Therefore, when working in the time domain to estimate the adequacy of solutions, it is necessary to make a choice of the method of statistical linearization from the known in practice design of automatic control systems. Four methods of statistical linearization are considered, using which calculations in the frequency domain have been carried out. For the chosen dynamic system with initial and statistically linearized nonlinear elements similar actions in the time domain were carried out. It is shown that the first method of statistical linearization is the most flexible, according to the amplitude-frequency response of the system. Such calculations were carried out for two surfaces corresponding to the cobblestone and subsoil roads at different speeds of the vehicle movement. The results of the research are separate-frequency and integral parameters. The last ones do not give any priority in the choice of the calculation field, under the condition of vehicle movement safety, i.e. there is no tire contact loss with the supporting surface.
The study of parametric optimization algorithms on example of vehicle bumper crashworthiness
Authors: Goncharov R , Zuzov V 
Published: May 2020

Abstract
Different algorithms of parametric optimization (implemented in the program LS-OPT) to solve high-speed and high-nonlinear problems of impact character on the example of vehicle bumper optimization are considered and compared. Different algorithms of response surface optimization such as linear polynomial model, quadratic polynomial model, Feedforward, Radial Basis Function, Kriging and Support Vector Regression were studied and analyzed; algorithms of choosing point selection scheme were considered. The analysis of optimization results allowed us to determine which of these algorithms are most effective in terms of accuracy and computational time. The problem of impact on the vehicle’s bumper is solved in the paper, the optimization is based on the application of metamodel (RBF). The method provided a reduction of its mass by 16% while maintaining the initial parameters of crashworthiness.
Fabrication by Electrospinning Technique and Characterization of Curcuma Mangga Val Reinforced PVA Fibrous Membranes
Authors: Sosiati Harini , Rianto Muhammad Dirga , Nugroho Aris Widyo , Sudarisman  
Published: May 2020

Abstract
Antimicrobial and anti-diabetic of Curcuma mangga Val properties have attracted research interest. Curcuma mangga Val extract (CME) and poly (vinyl alcohol) (PVA) were blended and fabricated to the fibrous membranes by the electrospinning method. The effects of CME concentration on the fiber morphology and tensile properties of CME/PVA membranes are the goal of the current study. Scanning electron microscopy (SEM) of the membranes revealed bead-free fibers with straightly/continuously orientation formed in all CME/PVA membranes. The average fiber diameter increased from 186 nm to 297 nm, with the CME concentration from 0 to 3 wt.%, respectively. The addition of 1% CME resulted in a relatively high tensile strength of 24.96 ± 0.20 MPa, which is the highest among the CME/PVA membrane specimens. However, very high tensile modulus and low elongation showed in these results lead to reducing the functionality of the CME/PVA fibrous membrane due to the brittleness. The CME properties may contribute to those shortages.
Sub chronic diagnosis of administration with Scurrula atropurpurea to blood biochemichal analysis
Authors: Athiroh N , Purnomo Y , Mubarakati N J 
Published: May 2020

Abstract
This research is to evaluate whether Scurrula atropurpurea has a protective effect on the liver caused by its sub-chronic treatment. The rats consist of four groups: normotensive group and three groups administered methanolic extract of S. atropurpurea (MESA) at a dosage of 250; 500; and 1000 mg/kg BW. Serum liver and kidney function were assayed. Serum cholesterol was checked. Histopathology of the brain, liver, cardiac, lung, and kidney was identified using hematoxylin-eosin staining. The administration of MESA250, MESA500 and MESA1000 caused no differences among the groups compared with the control group. Structural evaluations on the brain and lungs showed that the MESA administration carried no changes. In liver and heart, MESA1000 led to repair tissue damage. But for the kidney, MESA250 was safe for the tissue. The results of this study revealed that the methanolic extract of S. atropurpurea at antihypertension dose is safe even when taken for a more extended period. At a higher dose, the extract may have the potential to increase some hematological indices but may induce tissue repair in the liver and heart. The lowest dose is safe for kidney tissue.
Measurement of 2.4 GHz Access Point Antenna
Authors: Firdaus  , Fatimah Afida Nurul , Yulindon  , Dewi Ratna 
Published: May 2020

Abstract
Antenna research on various wireless system applications has been carried out by many R & D telecommunications equipment vendors and academic. In academic researchs, antenna design are not tested on devices but are only based on the requirements and weaknesses of previous studies. In this study we developed an antenna for wireless LAN by first testing a conventional wireless antenna. based on knowledge of conventional antennas then we did a new antenna design. The antenna we tested was the antenna used on the TP LINK WA701ND access point device. In this paper we report the measurement results of the antenna. Measurements were made using antenna measuring devices at the State Polytechnic of Padang to obtain important antenna parameters including radiation pattern, polarization, and frequency response. The measurement results obtained the antenna is omnidirectional, linear polarization and 2.34 - 2.74 GHz frequency band with a center frequency of 2.43 GHz. The minimum return loss is -20.3 dB and the SWR is 1.14.
Mobile Applications For Gas Finding
Authors: Afyenni Rita , Idmayanti Rika , Refni  , Kirana Intan Pratama , Nova Fitri 
Published: May 2020

Abstract
Current conditions show that almost all Indonesian households use gas as fuel for cooking, but the availability of Liquid Petroleum Gas (LPG) is not proportional to the number of user needs. This condition makes it difficult for the community to get it. Sometimes they have to search directly to each gas station to get information about the availability of gas. Mobile applications for gas finding that have been made, help the community especially in Padang city to find a gas station that still has a stock of gas. This application is equipped with the name of the Gas Station and location map feature. This application can be accessed using an Android smartphone.
Implementation of Average Filter and Median Filter for OCR Pre Processing of Incoming Letters Image
Authors: Mahawan I Made Avendias , Darma Udayana I Putu Agus Eka 
Published: May 2020

Abstract
Letters are one of the tools to communicate through writing and are useful for conveying information. STMIK STIKOM Indonesia campus (called STIKI Indonesia) receives letters from other institutions reaching an average of 50 letters a month, an automatic system is needed that can help manage the incoming letters and can determine the purpose of the letter. OCR (Optical Character Recognition) is one of the ways that can be used to find a text contained in an image, but to get good results in the OCR process requires a pre-process in order to reduce noise in letter images, combining average filters and median filters be an option because it succeeded in reducing noise and smoothing the image of the organization’s stamp and signature that piled on the name of the sender of the letter. The results obtained from OCR after going through pre-processing are an array of words from letters. The accuracy achieved based on the date of the letter, letter number, subject of the letter and the sender of the letters from 50 test images reached 90%.
RETRACTED: Removal of nitrate from groundwater by column using pumice as adsorbent as an effort for water resources conservation
Authors: Helard Denny , Indah Shinta , Kiflia Dhea Pratiwi 
Published: May 2020

Abstract
As an effort for water resources conservation, a fixed-bed column was applied to remove nitrate from groundwater using pumice as adsorbent. The column performances were evaluated by varying the influent concentration (50 mg/L dan 80 mg/L) and influent flow rate (2 - 3 gpm/ft2 equal to 43–65 mL/min) with 85 cm of adsorbent bed depth. The results indicated that the increase in influent concentration increased the amount of nitrate and cause the earlier breakthrough time. Furthermore, the increase in influent flow rate caused the column exhaustion time to occur earlier resulted in the shortened lifespan of the column. The column system with a bed depth of 85 cm and flow rate of 2 gpm/ft2 (43 mL/min) for 80 mg/L of influent concentration showed the best nitrate uptake performance in this study with a total removal of 31.42% and adsorption capacity of 1.394 mg/g. The results revealed that the pumice in column has potential for nitrate removal from groundwater.
The Role of the Change Order on Time Performance in Construction Project
Authors: Susilowati Fajar , Temi Ariati Budi 
Published: May 2020

Abstract
This research was conducted to determine how the conditions change order and time performance on a construction project. The population in this study were employees of one project in Jakarta with a sample of 30 employees. Analysis of the data used in this research is descriptive analysis. The results obtained showed that the change order is including in the not good category with a percentage value of 49.79%. While the time performance included in the category is also not good with a percentage value of 42.67%. Based on the results of calculations in the regression analysis, the results show that change order has a positive effect on increasing the time of implementation of construction project work (time performance). The most dominant change order indicator influencing time performance is the lack of information when planning a project. Based on the calculation of the Pearson Product-Moment Correlation, the change order gives a strong relationship to time performance equal to 0.556. So we can be explaining that the change order affects the time performance equal to 30.9% and the rest influenced by other variables.
Double Seasonal ARIMA for Forecasting Electricity Demand of Kuaro Main Gate in East Kalimantan
Authors: Azka M , Wiradinata SA , Faisal M , Suhartono  
Published: May 2020

Abstract
This study uses intraday electricity load demand data from Kuaro Main Gate data in East Kalimantan as the basis of an empirical comparison of Double Seasonal ARIMA models for prediction up to a day ahead. For the purpose of this study, a one-year hourly Kuaro Main Gate data load demand from 1 January 2018 to December 2018 measured in Megawatt (MW) is used. In multiple times of load demand data, in addition to intraday and intra week cycles, and intra year seasonal cycle is also apparent. We extend the Double Seasonal ARIMA methods in order to accommodate the Intra year seasonal cycle. The mean absolute percentage error (MAPE) is used as the measure of forecasting accuracy. A notable feature of the time series is the presence of both an intraweek and an intraday seasonal cycle. We also propose that a Double Seasonal ARIMA model with the one-step-ahead forecast as the most appropriate model for forecasting the two-seasonal cycles Kuaro Main Gate data load demand time series. We use the Statistical Analysis System package to analyze the data. Using the least-squares method to estimate the coefficients in a Double Seasonal ARIMA model, followed by model validation and model selection criteria, we propose the ARIMA (1,1,1)(0,1,1)24(0,1,1)168 within-sample MAPE of 0.000992 as the best model for this study. Comparing the forecasting performances by using k-step ahead forecasts and one-step-ahead forecasts, we found that the MAPE for the one-step ahead out-sample forecasts from any horizon ranging from one week lead time to one month one week lead time are all less than 5%. Therefore we propose that a double seasonal ARIMA model with a one-step-ahead forecast must be considered in forecasting time series data with two seasonal cycles.
Improving Productivity and Quality of Medium Voltage Cable Production
Authors: Pratama A T , Saraswati T , Prianggara F , Savitri T 
Published: May 2020

Abstract
A cable manufacturer has produced varieties of products, such as low voltage cables, medium voltage cables, telephone cables, and fiber-optic cables. The main goal this company is to achieve ultimate customers satisfaction through timely delivery, consistency in product quality, and best service. The company faces a problem where daily production cannot reach 6, 000 meters/day as requested by management. Moreover, defects have been found in certain processes. A method of countering those problems is proposed by integrating OEE, SMED, and HFACS. Based on the analysis results, the OEE from insulation and screening machines are not meet the company target which is below 60%. In addition, visual defect shown as the most frequent type of defect that occurred in the medium voltage cable production process with 56%. SMED has been utilized to separate the internal task and external task, then the daily production can achieve 6, 165 meters/day by reducing the setup time based on the simulation result. In addition, HFACS has been used to analyze the main problem due to human factor aspects, then it is recommended to add extra operator, extra material handling for lifting/moving products, and a re-data checking procedure in the business process.
Determining optimum eco paving block compositions by using factorial design method
Authors: Purwandari A T , Ratnamirah A , Parwati N , Tanjung W N 
Published: May 2020

Abstract
Some plastic waste processing into economically valuable recycle products has been done. By using a plastic waste processing machine, a variety of products made from plastic waste can be made, one of which is a paving block that is commonly used as building material. This paving block is called as eco paving block to show the ecology side by using plastic waste as raw material. It has been produced with various compositions and type of plastics, but the optimal composition is not yet known to produce good quality. So, this experiments were carried out using the factorial design as one of the Design of Experiment (DOE) methods to determine the effect of type of plastics and compositions ratio to the eco paving block compressive strength and also it can be obtained optimal composition of the eco paving block. The result showed that the ratio of compositon is 2:3 of sand and plastic can produce optimum eco paving block based on compressive strength. This paving block has an average compressive strength 9.91 MPa. It can be classified into D quality classification that can be used for yards, parks, and others.
Production quality improvement of Yamalube Bottle with Six Sigma, FMEA, and Data Mining in PT. B
Authors: Fitriana Rina , Saragih Johnson , Larasati Dea Prameswari 
Published: May 2020

Abstract
PT. B is one of the manufacturing company engaged in the field of plastic packaging. One of the products produced by companies that bottle Yamalube to customer PT. Yamaha. Based on daily reports of production companies, found that the percentage of disability have an average of 14% per month in which the company standard is 5% per month. It is necessary for Six Sigma to improve the quality of the bottles with the steps Define-Measure-Analyse-Improve-Control (DMAIC). In the define phase diagram created SIPOC and Quality Plan Yamalube bottle production process. In the measure phase created Sigma level. At this stage the known value of 0.16 DPU, DPMO of 250, 000 and the results showed that the conversion DPMO sigma level Yamalube bottle production process is equal to 2.17. In the analyze phase using a decision tree is known that bottles attributes that influence the decision of rejection is the position of the label, the number of labels, colours and perforated. By using FMEA method is known that improvements will be prioritized on the label of disability are not two sides to the root cause of the wear rubber. Repairs carried out by making the inspection SOP rubber, checksheet and proposals in the form of anti-static vacuum tool.