bluuebunny/crossref_metadata_2025_split huggingface dataset:
Optimization of Metal Inert Gas Welding with Taguchi Method
Authors: Prasetyo Teguh , Muzakki Hakam , Lumintu Ida , Hartanto Dwi 
Published: July 2020

Abstract
Welding parameters affected to weld joint performance. Optimize welding parameter of Metal Inert Gas (MIG) welding is not many studied. This study discussed Optimization from welding parameter of MIG welding used Taguchi Method. Tensile strength of weld joint was affected by welding speed significantly. Factor level welding current 100A, wire speed 65 inch/min, welding speed 6 mm/sec could get the optimize tensile strength. The value of tensile strength optimize when the average 44.07 kg/mm2 of Confirmation experimental and an average value 43.79 kg/mm2 based on Taguchi experiment.
Profile of Antibiotic Use and Germ Map in Pneumonia Patients in Pulmonary Space (Case Study at RSUD dr. Iskak. Tulungagung)
Authors: Ilmi T , Restyana A , Kadir M B A , Yuniarto P F 
Published: July 2020

Abstract
Pneumonia is an infection of lung tissue caused by bacteria, fungi, viruses or parasites. Antibiotics is a major therapy in pneumonia. The aim of this study was to determine the amount of antibiotic use in DDD / 100 patient-days and to know the profile of germs map in pneumonia patients in Pulmonary Room Dr. Iskak Hospital, Tulungagung during January-June 2017.The design of this research is observational research method with retrospective data retrieval from patient medical record data and antibiotic usage data from Pharmacy Installation and microbiology culture result data of patient, then analyzed descriptively. The results showed the total amount of antibiotic in 130 unspecified pneumonia patients non ICU inpatient in Pulmonary Room Dr. Iskak Hospital, Tulungagung during January-June 2017 was 51.28 DDD/100 patient-days. The most antibiotic types are levofloxacin iv 40, 14 DDD/100 patient-days and ceftriaxone 8.71 DDD/100 patient-days. The profile of the pneumonia-causing germs map cannot be determined because there is no data on microbiological culture test results from the patient.
Misty Image Repair System with Dark Channel Prior and CLAHE
Authors: Joni K , Alfita R , Dewi H A 
Published: July 2020

AbstractThe aim of this study is to remove the influence of weather factors in order to improve the visual effects of the image and provide benefit to post-processing. Images captured in hazy or foggy weather conditions can be seriously degraded by scattering of atmospheric particles, which reduces the contrast, changes the color, and makes the object features difficult to identify by human vision and by some outdoor computer vision systems. Therefore image dehazing is an important issue and has been widely researched in the field of computer vision. Image haze removal based on dark channel prior can perform very well. But it didn’t deal with sky region and brightness objects because dark channel prior is not established in these regions. To solve the problem and enhance the contrast, this paper propose to restored the hazy image by adding the contrast limited adaptive histogram equalization. With the contrast limited adaptive histogram equalization method, the results of the dark channel prior results can be contrasted so that the image becomes clearer and more specific. Experimental results showed that such method is MSE 0.256 is equal to PSNR of 54,043 With this research, it is expected that a clean image after processing can provide maximum information to humans.
Comparison of Automatic Water Taps Using Ultrasonic Sensors and PIR Sensors
Authors: Widyaningrum Vivi Tri 
Published: July 2020

Abstract
Water is vital for all living things on the earth, so there must be an effort to save water. One effort to save on water use is by making automatic water taps. Automatic water taps which are meant here are water taps on the sink and also water taps for ablution. The working principle of the two taps is the same, that is, the water tap will open if there is an object (human) detected in front of the water tap. In this automatic faucet system the arduino mega 2560 microcontroller is used as data processor obtained from ultrasonic sensors and Passive Infrared Receiver (PIR) sensors. The two sensors are used interchangeably and the results are compared to determine the difference in response time. Based on the tests that have been done, it is found that the time needed for the ultrasonic sensor to open or close the water tap is faster than the PIR sensor. When opening the tap the time needed by the two sensors is almost the same, which is only 4ms difference. Whereas when closing the tap the time needed for the PIR sensor is much longer, which is more than 4s. This is because the process of returning the sensor to return to normal is not detecting the presence of humans or in other words the sensor does not detect infrared rays tend to require a longer time. As for the ultrasonic sensor because what is detected is the distance, so the object moves from the front of the tap then the distance detected will change immediately so that the tap will immediately close again.
Leader-Follower Formation Tracking Of Multiple Mobile Robots With Constant Leader Velocity
Authors: Latif M. 
Published: July 2020

Abstract
This research presents a tracking formation by multiple mobile robots. The formation used is leader follower approach. Formation control is designed based on the robot kinematics model. Follower is controlled to track the position of the specified formation. Triangle shape is used to the goal formation. Experiments carried out with two scenarios. First, leader moves to a point with linear motion. Second, leader moves along the circular trajectory. Leader motion is constantly with the aim that the formation is rigidly formed while moving towards the goal. Experiments show that robots can perform and maintain formation while achieving goals.
Comparison of Partial Discharge Characteristics Detected by RC Detector and Rectangular Antenna
Authors: Laksono Deni Tri , Laksono Dedi Tri , Khayam Umar 
Published: July 2020

Abstract
This study discusses the method of measuring and detecting Partial Discharge (PD) in high voltage electrical equipment that has the characteristics of being veiled with metal. This research uses the UHF (Ultra High Frequency) method based on IEC 60270 and RC Detector to detect and measure PD. This method uses electromagnetic wave energy emitted by PD sources from the metal box. Use this method to get detection and measure without having to activate the test object. Then the sensors used in testing in this study are rectangular spiral antennas and RC detectors. In addition, various stresses will be tested. The measurement results then compare when evaluating the PD between the Rectangular Spiral antenna and the RC Detector to determine the sensitivity level of the rectangular spiral antenna. The test results show the measurement of partial release of rectangular spiral antenna is greater than outside the metal box and measurement using RC Detector is more sensitive than using a rectangular spiral antenna sensor.
Quadcopter Surveyor Drone Wind Velocity Data Characteristic for Optimal Hotwire Sensor Position
Authors: Rudiyanto Bayu , Hariono Budi , Budiprasojo Azamataufiq 
Published: July 2020

Abstract
In a research and survey sector, drone usually equipped with extra measuring equipment depends on needed. The purpose is to make a survey tools with extra ability to collect data in a wide area with fast and remotely. This type of drone known as a modified drone or a surveyor drone.
One of surveyor drone type is a quadcopter wind velocity surveyor drone. The problem is, drone also knowing have a turbulent air effect surround its propellers, and its suspected to affect the ability of the anemometer collecting the correct data.
This research will investigate that phenomenon, focused on the data of wind velocity with a variety of drone propeller rotation speed. Wind velocity anemometer sensor position places surrounding the drone. The drone use in this research is a prototype drone which is equipped with hot wire anemometer data logger. hot wire anemometer memory card data logger type uses in this research is a regular type and already modified to installed it on a drone.
Research will be focused on the search of an answer about how big the deviation of wind velocity data affected by drone propeller wind turbulence.
Home Electrical Energy Management System Using DijCostMin Algorithm
Authors: Akbar Adhiel , Halomoan Junartho , Silalahi Desri Kristina 
Published: July 2020

Abstract
In the afternoon until night, an electrical load is increased, it happened because to increase the usage of electrical devices by customers. These conditions in which increased electricity consumption by buyers at the same time with the quantity a large power have not been able to handle properly by PLN as the supplier of electrical energy in Indonesia. The impact is the occurrence of the power outage in rotation, to reduce these all, needs to be setting the use of electric power appropriate, in order to achieve the purpose of balance between demand and supply for electricity energy; especially on the household sectors. One of the tricks is enacting the management of the load on the side of their customers or well known as Demand-Side Management (DSM) and apply dynamic pricing on electricity tariff from the peak time and non-peak time. Home Electrical Energy Management System (HEEMS) is a system for managing electrical energy-based method DSM and apply dynamic pricing. HEEMS allows users to manage and monitor the usage of electricity. HEEMS serves to do scheduling on the use of an electrical device DijCostMin Algorithm based on data planning the use of devices electricity or load forecasting entered by users. The method that proposed is a success and effective to reduce energy demand is about 22.69% when peak time and reduce bills of electricity is about 8.38%.
Precipitation Rate Investigation on Precipitated Magnesium Carbonate by Ultrasonic of Magnesium Bicarbonate
Authors: Rhamdani A R , Sulistyono E , Yunita F E , Natasha N C , Firdiyono F. , Priyanti A D 
Published: July 2020

Abstract
Indonesia has a lot of dolomite reserves. Magnesium carbonate can be synthesized from dolomite. One of the main steps that requires a lot of energy are magnesium bicarbonate thermal decomposition. Magnesium bicarbonate solution are heated to make magnesium carbonate as precipitate. One of the ways to improve this process are by using ultrasonic waves as energy carrier. The purpose of this study is to find the effect of ultrasonic waves heating (sonochemistry) to thermal decomposition of magnesium bicarbonate. In this work, the author conducted ultrasonic heating with the amplitude of the waves varied around 20 µm and 30 µm for 35 minutes. Conventional heating using heat plate was also conducted and compared with ultrasonic heating. Higher decomposition ratio was reached on samples heated using ultrasonic waves with the value of 85.70% compared to conventional heating with decomposition ratio of only 50.08%. Amplitude effect on decomposition ratio were also observed. Higher amplitude made decomposition rate faster.
Logit Model for Transportation Mode Choice in Berau Regency East Kalimantan
Authors: Agustaniah Rosa , Wicaksono Achmad 
Published: July 2020

Abstract
In big cities thousands of public transportation is very easy to find because it fills the streets and can cause traffic jams. Another case that occurred in Berau District, public transportation was almost non-existent. On the streets private vehicles and transport companies dominate. The number of public transport fleets such as city transportation and buses, is very small in number. Berau Regency has many attractions, but tourists will find it difficult to find public transportation. This study aims to determine the selection of transportation mode choice in Berau Regency using the logit model with the assumed road users choose to use public transport or private transportation. Travel attributes that influence mode choice in Berau district are travel time, transportation costs, space availability, comfort and safety. The cost of private transportation is the same as the cost of public transportation, which is about 79% of people who will still choose to use private transportation. This condition will be achieved if the cost of public transportation is 1.4 times cheaper than the cost of private transportation.
Effect of HDPE Based Wastes on the Performance of AC-WC Mixture with RAP as coarse aggregate substitute
Authors: Mahardi P , Risdianto Y , Wibisono E , Karismanan  
Published: July 2020

Abstract
One attempt to avoid early pavement damage is to enhance asphalt quality as an aggregate binder. The addition of polymeric materials is frequently used to improve asphalt quality, particularly asphalt rigidity. Increased rigidity will enhance pavement performance against rutting, bleeding, and swelling, particularly in summer with a relatively elevated temperature. This study uses High Density Polyethylene (HDPE) polymer waste as a modifier in a mixture of Asphalt Concrete-Wearing Course (AC-WC) which also utilizes RAP waste as a coarse aggregate substitute. The aim of this study is to analyse the to analyse effect of waste materials on the AC-WC performance. Analysis was carried out after the Marshall test to obtain the values of air void, Void in Mineral Aggregate (VMA), Void Filled with Asphalt (VFA) stability, flow and Marshall Quotient (MQ). Marshall samples prepared with dry method modified HDPE asphalt binder, given a limit on the specifications of the number of each specimen. The percentage of HDPE as asphalt mixture is 0%, 1.6%, 1.8%, 2.0%, 2.2%, and 2.4% asphalt weight. The optimum asphalt level (KAO) used is 5.25%. Marshall test shows that the addition of 1.6% of HDPE in the AC-WC mixture and RAP can increase mixture stability by 1.74% and flow by 3.69%.
Model of Passengger Satisfaction on the Service Performance of the Gapura Surya Nusantara Passenger Port PT. Pelabuhan Indonesia III Branch Tanjung Perak Surabaya
Authors: Supriyatno D , Widayanti F R 
Published: July 2020

Abstract
Infrastructure is one of the supporting activities of transportation, such as airports, halte, terminals, and port buildings. The port terminal is one of the transportation infrastructure buildings used by passengers when they travel. The port terminal is expected to be able to provide good facilities for passengers while waiting for transportation. For this reason, it is necessary to do a model of passenger satisfaction on the performance of the passenger terminal in order to know what factors influence passenger satisfaction. The measurement of passenger satisfaction uses the classic assumption test method, and also tests the validity and reliability of the questionnaire submitted to the passenger. From the research that has been done, we get the final model of Passenger Satisfaction on the Service Performance of the Gapura Surya Nusantara Passenger Terminal as follows: Y1 = 62.325 + 0.714X1 + 0.020X2 + 0.040X5 + 0575X6 + 0.218X8 + 0.134X9 + 0.356X11 + 0.550X13 + 0.476 X14 + 0.488X17 - 0.658X19, the model is influenced by nine variables.
Housing Drainage Network Evaluation in Education Teacher Road Merauke
Authors: Utary C , Akbar M , Kakerissa Y 
Published: July 2020

Abstract
Increasing population, residential and land development of the narrow lead to flooding or waterlogging during the rainy season. Based on the author’s observation that this occurs as a result of population growth and settlement. Areas that were once as a rain water reservoir and the water reservoir tidal inland transformed into residential areas and development centers of economic activity, and social services. The residential area of Merauke teacher education road is low-lying areas and densely populated, thus increasing the flow of water entering the waste stream. Based on the calculation of discharge, obtained Qk = 79,586,978.48 m3 / sec. The magnitude of the flood Q Qb = 24,488,511, 58 m3 / sec obtained high discharge may cause flooding in the residential area of teacher education path Merauke. So it is necessary to increase the dimensions of the existing channels in order to cope with flooding during the rainy season.
Bamboo Pile Installed Into Soft Ground to Increase Required Reinforcement Force for Coastal Dike
Authors: Suyuti  , Sabaruddin  , Hakim Raudha 
Published: July 2020

Abstract
There are three thousand kilometers of six thousand three hundred kilometers were occured abrasion in coastal area, in North Maluku. Those accidents caused by natural disaster such as big waves from seashore. In order to avoid that risk natural disaster for living safe, local government must to construct a dike. However that construction is often built on the deposit soft soils in lowlands. In which, a required stability of it’s dike on the soft ground must be satisfied to support loads. Recently, the traditional way is mostly familiar to increase soil stiffness for embankments, which used local material such bamboo pile. It is pile material installed into soft ground before construct an embankment. Therefore, the study aims is focused on observation of the required renforcement force of the ground after installed with bamboo piles which investigated by full-scale test. Finally, the reliability performance of required reinforcement force of soft ground with bamboo pile, which is derived by several empirical equations.
Measurement of standard glucose solution using silver nanoparticle
Authors: Maarebia R Z , Nurvitasari E , Sumanik N B 
Published: July 2020

Abstract
This study aims to determine the effect of using silver nanoparticles on electrodes to measure standard glucose solutions using the voltammetry method. In this study, silver nanoparticles were used which have been present and have been synthesized and characterized by using the extract agent of water extract of Myrmecodia pendans and AgNO3 as metal precursors. Detection of glucose with variations in concentration characterized by limit detection obtained a concentration of detection limit of 4.53 mM and sensor sensitivity of 1.91 A.mM−11.mm−2.
Statistical reasoning levels of high school students in solving statistics related problems
Authors: Setianingsih R , Rahmah DA 
Published: July 2020

Abstract
Statistical reasoning is one of the focus of statistical learning at this time. Statistical reasoning is needed by students to understand the concept of statistics, to process information, and to draw conclusions both in statistical learning and in daily life. This research is a descriptive study with a qualitative approach that aims to describe the level of statistical reasoning of high school students who have low mathematical abilities in solving statistics related problems in each statistical process, namely the process of describing data, the process of organizing and reducing data, the process of representing data, as well as the process of analyzing and interpreting data. The subjects in this study were two high school students of grade XII who had low mathematical abilities based on the math skills tests that had been given. The results showed that both subjects in the process of describing data successively reached level 2 (Verbal Reasoning) and level 4 (Procedural Reasoning). Meanwhile, in the process of organizing and reducing data and the process of representing data, the first and second subjects both reached level 1 (Idiosyncratic Reasoning), while in the process of analyzing and interpreting data, the first and second subjects both reached level 1 (Idiosyncratic Reasoning).
Online-based Learning to Train Students Critical Thinking in Physics Teacher Training Programs
Authors: Kustijono R , Hakim SR 
Published: July 2020

Abstract
The research objective is to describe the effectiveness of online-based learning to train students’ critical thinking in physics teacher training programs. The elements of critical thinking are: analyzing, evaluating, implementing, generating ideas, and expressing ideas. This type of research is quasi-experimental with a time-series design. Effectiveness is seen from the ability to train the elements of critical thinking and student responses. Manipulation variable is online-based physics learning and the dependent variable is an element of critical thinking. The research subjects were 40 students of the Physics teacher training program at Universitas Negeri Surabaya. The elements of critical thinking and student responses are assessed using a Likert scale. Descriptive statistics are used to analyze data. Learning is effective if the average value of critical thinking elements ≥ 3.1 (scale 0-5) for each module is discussed with a fixed or upward trend. Student responses are effective if the percentage is ≥ 61%. The results obtained: 1) the average score of critical thinking elements ≥ 3.1 2) The percentage of student responses ≥ 61%. These results indicate that online-based learning can effectively train students’ critical thinking in the Physics Teacher Training Program and get a positive response.
Implementation of software geogebra on triangles
Authors: Nurhayati  , Palobo Markus , Nur’aini Khumaeroh Dwi , Natsir Irmawaty , Meirista Etriana , Munfarikhatin Anis 
Published: July 2020

AbstractMathematics teaching is a learning process gives an understanding of mathematical concepts for students. The basic concepts of mathematics must be embedded well in each student so that understanding concepts at an advanced level can be easily mastered. Mathematics teachers play an important role regarding the problems faced by students when learning mathematics in class. A math teacher in addition to having the ability to master mathematical concepts well, is also required the ability to manage the class so that students can understand the concept well and learning achievement is in the high category. Mathematics is a subject consisting of great ideas that are connected to each other so that understanding cannot be separated because each concept will contribute to the other concepts. Most students still say that mathematics is a difficult and uninteresting lesson, therefore, a teacher needs to apply specific strategies used in the mathematics learning process so that it can change students’ perceptions of mathematics into an interesting and easy lesson. The use of technology can help teachers and students learn mathematics, for example the use of GeoGebra software. GeoGebra software has the benefit of being able to make geometric paintings that are fast and precise compared to using paper and pencil and the existence of animation facilities provides a clear visual experience for students and teachers. One of the geometry concepts is to construct a flat triangle, in this study the discussion is to determine the special lines on the triangle using GeoGebra software and then determine the intersection of the special lines of the triangle.
Impact of Organic Matter on The Phytoaccumuloation Technology of Copper in Soils by Ipomea reptans
Authors: Muliadi  , Liestianty D , Nafie N La , Irdhawati  , Yanny  , Mamun S Al 
Published: July 2020

Abstract
Heavy metal contamination in soil is often a problem in living organisms. The efforts to control heavy metal contamination in soils can be done by using living organism. The phenomenon of the uptake, accumulation and storage of heavy metals in the plants’ body is known as phytoaccumulation. Phytoaccumulation research of copper metal has been carried out with application of material waste i.e. sawdust, charcoal and compost used by Ipomea reptans. The analytical method used is atomic absorption spectrophotometry (AAS). The results showed that the impact of the application of organic waste material curbed the influx of copper into Ipomea reptans with the phytoaccumulation ability to control plants, sawdust, charcoal and compost of 231.1, 229.7, 196.1, and 152 mg/kg. The bioaccumulation factor value in each application is 0:33, 0:26, 0:34 and 0:19 respectively. There were significant differences between the phytoaccumulation ability of copper metals done by Ipomea reptans.