bluuebunny/crossref_metadata_2025_split huggingface dataset:
Kahoot On Thematic Learning
Authors: Hakim A R , Rahayu S , Affida R 
Published: November 2019

Abstract
Thematic learning, especially in elementary schools, requires a supporting component in the form of learning media. The applicable learning media needs are needed in an effort to facilitate the teaching and learning process. The purpose of this study was to describe students’ responses to the Kahoot application for students at SD Kedungkandang 1 Malang.This research was a descriptive narrative study with a qualitative approach. The subjects in the study were all fourth grade students of Kedungkandang 1 Elementary School in Malang City, amounting to 32 people. The data collection procedure employed observation, interviews, questionnaires and documentation. The results showed that a positive response was given to the fourth grade students of Kedungkandang I SDN Malang City to the Kahoot application. This can be seen from the results of student questionnaire responses to aspects of expression by 70%, aspects of interest by 31%, active involvement aspects by 38%, accessbility aspects by 69%, and aspects of attractiveness of 82%
Implementation of ID3 algorithm classification using web-based weka
Authors: Fitrani A S , Rosid M A , Findawati Y , Rahmawati Y , Anam A K 
Published: November 2019

Abstract
The Bangil District Court is an IB class court that handles a large number of case cases. Every year more and more case cases are included in the Bangil District Court, but not all case cases are in a mutation status. By using classification techniques that can process large amounts of data to find patterns that occur in case data. Data processing is used to predict case minutation with the decision tree method using ID3 algorithm. Case data has 8 attributes and has been classified into 6 parts, namely division based on Case Type, Register, Case Classification, Length of Process, Public Prosecutor and Decision with a goal of Mutation Status. Weka 3.6 is an API that is used to build rules / rule bases. The rule that was formed was then implemented in the making of a case status prediction application in the web-based Bangil District Court.
Game education for child with disabled handle based on multimedia
Authors: Taurusta C , Fitrani A S , Suryawinata M , Dijaya R , Astutik M W D 
Published: November 2019

Abstract
Learning media is very influential on the interest of learning in children, especially in students. Many kinds of learning media, one of them using internet technology, computers and even mobile phones or smartphones that have a positive impact and have a negative impact. Learning media is also very influential in early childhood. Education at an early age is very important, especially for handicapped children who need more attention. Improving the effectiveness of learning should be improved to be easy to understand and not boring, then parents should improve in various ways. it includes academic education and creativity. The development of interactive multimedia learning technology allows the introduction of speech recognition technology into the application. Speech recognition is a voice command to operate a computer. Because speech recognition is a process for converting acoustic signals (sound) through a microphone as a computer operation command or writing a word (dictation). So in operation, users no longer need to use the cursor or press the keyboard. Through voice commands, users can operate the learning media..
Classification Of Dengue Hemorrhagic Disease Using Decision Tree With Id3 Algorithm
Authors: Rosid M A , Fitrani A S , Findawati Y , Winata S , Firmansyah V A 
Published: November 2019

Abstract
Dengue Hemorrhagic Fever (DHF) is a disease caused by the dengue virus which is transmitted by Aedes Aegypty, and Aedes Albopictus (DHF) mosquitoes is a disease caused by the dengue virus transmitted by mosquitoes Aedes Aegypty and Aedes Albopictus. There are three categories of DHF with different symptoms; the first category is called Dengue Fever (DF), the symptoms of DF are characterized by fever, these symptoms are almost the same as symptoms of typhoid or Typhoid Fever (TF). The second category is Dengue Hemorrhagic Fever (DHF) symptoms of DHF characterized by fever, nausea, vomiting, red spots, and nosebleeds. The last category is dengue shock syndrome (DSS) the advanced category of DHF. To determine the level of DHF disease experienced by patients with a background of various symptoms, the DHF disease classification study was conducted using the ID3 algorithm. It is hoped that this study can help doctors diagnose DHF disease. The achievement of predictions from research using the ID3 algorithm can produce an approach in the form of symptoms that affect the level of DHF disease with an accuracy rate of 82%.
A Review on Cryptography Protocol for Securing Data
Authors: Rahim Robbi 
Published: November 2019

Abstract
Cryptography is one type of protection that is widely used to secure information, encryption and decryption and the use of keys is a common process used to secure information; and also the cryptographic processes have a classic problem that is the distribution of keys that are vulnerable to interception when the key is sent by the sender to the receiver, the cryptographic protocol (Authentication) could be used to minimize key distribution problem because there is no need for key exchanges. Shamir’s Three-Pass Protocol, Secret Splitting, Bit-Commitment Protocol and Blind Signature are few cryptographic protocols that can be used to help with key distribution issues, this article performs systematic approach to protocol cryptography for security level and the using other algorithms to combine with protocol.
Data Security On RFID Information Using Word Auto Key Encryption Algorithm
Authors: Rahim Robbi , Lubis Syamsuddin , Nurmalini N , Dafitri Haida 
Published: November 2019

Abstract
RFID technology is a technology that is commonly used, one of the problems that exist in RFID is the information contained in RFID Tags are not encrypted and easily read by others. Word Auto Key Encryption (WAKE) is one of the cryptographic algorithms that can be used to secure data on RFID Tag. Experiments resulted in the process of reading and writing encrypted data on RFID Tags can be done well and data more secure than before.
Enhancement IDEA Algorithm with Digital Image as Key Encryption and Decryption
Authors: Rahim Robbi , Siregar Helmy Fauzi , Sitanggang Delima 
Published: November 2019

Abstract
Cryptography is one type of protection that is widely used to secure information, encryption, and decryption and the use of keys is a common process used to secure information; and also the cryptographic processes have a classic problem that is the distribution of keys that are vulnerable to interception when the sender sends the key to the receiver, the cryptographic protocol (Authentication) could be used to minimize key distribution problem because there is no need for key exchanges. Shamir’s Three-Pass Protocol, Secret Splitting, Bit-Commitment Protocol and Blind Signature are few cryptographic protocols that can be used to help with key distribution issues, this article performs systematic approach to protocol cryptography for security level and the using other algorithms to combine with protocol.
DC-DC Hi-Voltage Converter in application of multi-stage coil gun power charger
Authors: Winarno B , Putra R G , Yuwono I , Sumantri B , Gunawan A I 
Published: November 2019

Abstract
The multi-stage coil gun is a coilgun with many coils as launchers. Coil gun requires a lot of power to work. High voltage and large currents are needed. Sources of energy to support the coil gun arelimited. Alternatives that are often used by using high voltage capacitors bank. To store energy in a capacitor bank from a battery, a charging device is needed. High voltage DC to DC converter is required. In this article, a high voltage capacitor bank charging device is discussed to supply a multi-stage coil gun. The device has been successfully implemented to support six coilgun levels with the ability to increase the voltage from 12 V to 1.1 kV DC.
Ecological function of green open space as water infiltration: study in kalijodo green open space, north jakarta
Authors: Mbarep D P P , Herdiansyah H 
Published: November 2019

Abstract
Kalijodo Green Open Space is a green open space set by the DKI Jakarta Provincial Government in 2017. Related to the ecological function of green open space as water infiltration, a literature study was conducted to analyze the condition of Kalijodo green open space based on supporting data sources using descriptive analysis techniques. The results of the analysis show that the Kalijodo green open space has not been able to carry out ecological functions as well as water absorption. Based on the imagery in Google Earth, it is seen that Kalijodo’s green open space is very minimal vegetation and looks barren. This condition has implications for hardening the soil, so that water is difficult to seep into the soil. In the last 5 years, the average rainfall intensity from October 2013 to March 2014 was 134.97 mmph and was a very high level of rainfall intensity. Green open space is included in flood-prone areas. With the condition of the Kalijodo green open space and the high intensity of rainfall, the ecological function of green open space as water infiltration has not been maximized.
A new model of open end yarn twist using torus coordinate based on dynamical mechanics
Authors: Putra V G V , Rohmah S 
Published: November 2019

Abstract
Yarn structure and its relationship with the properties have attracted many researchers and scientist in textile science. The importance of this subject has increased due to the need of yarn with best possible quality. In this study, we have established a new equation to relate open end (OE) yarn count number in metric count (Nm
) toward yarn twist on OE spinning. Based on this research, twist has been determined and formulated by analyzing the movement of fibre inside yarn using tensor calculus on torus coordinate based on dynamical mechanics.
Numerical Analysis of the Reynolds Number Effect on the Aerodynamic Performance Wing Airfoil Eppler 562 with Wingtip Fence
Authors: Hariyadi S , Sutardi S , Widodo W A , Pitoyo B J , Pambudiyatno N , Sonhaji I 
Published: November 2019

Abstract
Wings are a very important part of aircraft. In that section, most of the lift forces are generated on the airplanes. The aerodynamic performance produced by the wing greatly determines how optimal the cruising range of an aircraft. To improve the performance of the wings, researchers have been competing to make wing modifications of an aircraft. One modification that is used at this time is by adding end wall which is often referred to as a winglet. Winglets function as a barrier to fluid flow jumps from the lower surface to the upper surface. This fluid flow jumps is often called as a tip vortex. One type of winglet discussed in this study is the wingtip fence. This study took wing objects on unmanned aerial vehicle with numerical simulation using Ansys 19.0 software with turbulent model k-ω SST. The freestream flow rate to be used are 10 m/s (Re = 2,34 x 104) and 45 m/s (Re = 1 x 105). The angle of attack used are (α) = 0°, 2°, 4°, 6°, 8°, 10°,12°,15°, 17°, and 19°. The wing model is an Eppler 562 (E562) airfoil with and without a winglet. From this study, it was found that wing aerodynamic performance with Eppler 562 (E562) airfoil was higher at Re = 2,34 x 104 Delay of the stall is more effective at Re = 1 x 105 compared to the Re = 2,34 x 104 But, the aerodynamic performance Re = 2,34 x 104 better than Re = 1 x 105.
Optimization of Blade Curve of Pump as Turbine for Piko Hydro Power Plants
Authors: Mustafa M , Hantarum H , Suryono S 
Published: November 2019

Abstract
The use of the NS 50 water pump that functions as a turbine for the PikoHidro Power Plant was an idea in finding simple and easy alternative energy in its assembly. In this application a water pump was used as a turbine so the working principle was reversed, where water from a certain height will move the pump, so that the pump impeller rotates and continues to rotate the generator and will generate electrical energy. This study emphasizes the experimental pump functioned as a turbine (PAT) by modifying the same in and out angles on the PAT blade. An NS-50 pump water pump with a capacity of 563.22 liters / minute and a total head of 20 m was tested. The variables used were water level (H) was 3 meters and variations in the different entry and exit angles of the impeller in the 7 specimens used. The pump was then connected to a generator and the result was electricity. The results showed that the best variation was in variations in the exit and entry angles of 30/30, rotation was 810 rpm and the power produced was 90 watts. The experimental results show good results theoretically.
Design Tools for ControllingBrown Planthopper Pests Using Ultrasonic Waves
Authors: Utama S N , Setyaningrum H , Sholeh B , Taufiqurrahman T 
Published: November 2019

Abstract
The brown planthopper pest is a main pest of rice production in East Java and mostly Indonesia areas. The main controls of brown planthopper are mostly using chemical pesticides, which caused resistance on pest. Resistant varieties are the main choice for overcoming attacks of planthopper. However, resistant varieties had limitations because brown planthopper adapted to new biotypes. Conventional Integrated Pest Management (IPM) is reactive to pest attacks and often continues to rely on insecticides. One of the promising ecofriendly technologiesis ultrasonic waves. This study the aim was to design a planthopper pest control system in a room using the HC-SR04 ultrasonic sensor with a frequency of 40 KHz. The trial in the first stage was limited to testing the functionality to the system and testing the range of tools carried out to determine the area covered by the wave ultrasonic. The results of testofthe system are all system components are working properly. The ranges of the tools area maximum range is three meters in surrounding of the ultrasonic sensor.
Supply chain risk assessment of cotton shirt production uses the house of risk method
Authors: Nalhadi A , Kurniasari A , Djamal N , Suryani S , Supriyadi S 
Published: November 2019

Abstract
The purpose of this study is to mitigate risks in supply chain activities in the production of cotton shirts. The method used in this research is the House of Risk (HOR) approach based on the Supply Chain Operation Reference (SCOR) model. The House of Risk (HOR) offers a framework for effectively controlling risks in managing risks from risk agents. Aggregate Potential Risk (ARP) is used to determine the priority of risk sources that need to do in the design of mitigation strategies. The research results identify as many as 26 Risk Events and 21 Risk Agents. Three Risk Agents based on ARP values are Procedures for Delivery of Less Organized Raw Materials, limited and Sudden Product Demand from consumers Mitigation actions used to prevent the causes of risk from occurring are creating standard operating procedures for raw material delivery activities. Also, a contract system establishes between suppliers of raw materials and freight forwarding services. Migration in human resources is evaluating employee performance. Empowerment of the community around the company, subcontracting to other similar companies, reviewing raw material stock is an act of meditation in sudden product demand.
Analysis study of nonwoven pineapple leaf fibre, nonwoven pineapple layered double weave and tricot knitting fabric as absorber material
Authors: Khasanah N I , Makki A I 
Published: November 2019

Abstract
Sound pollution can be minimized by noise intensity using sound absorbing material. Nonwoven fabrics are the material most widely used for acoustic applications. This research investigated about absorption coefficient of nonwoven pineapple leaf fiber (PNW), and its layered combination with double weave (PDW) and tricot knitting fabric (PTK). The variation of fabric will be tested for sound absorption coefficient using an impedance tube. Absorption coefficient test results showed there was an effect in absorption coefficient on nonwoven with layered.
Acoustic absorptive properties of Kapok fiber, Kapok fiber layered tricot fabric and Kapok fiber layered double weave fabric
Authors: Makki A I , Oktariani E 
Published: November 2019

Abstract
Kapok fiber was one of the natural cellulosic fiber that can be found widely in Asia’s forest especially in Indonesia. Kapok fiber was short and smooth surface causing poor inter-fiber cohesion that could not be processed in spinning. This fiber could be utilized to be accoustic sound proofing material. This research investigated about absorptive properties of non woven kapok fiber (SK) and its layered combination with tricot knitted fabric (TC) and double weave fabric (DWK). Combination of various kind of fabric’s type improved thickness and air cavity that impact absorptive properties of fabric. Impedance tube were used to characterization sound absorptive properties at low until normal frequency on 100 until 5000 Hz. The optimum sound absorptive were showed by combination of non woven kapok fiber with double weave fabric with thicknes 11,25 mm. It shows thickness impact to air cavity and gave significant effect to sound absorptive properties.
Method of measuring vibratory condition of a drill string
Authors: Bashmur K A , Petrovsky E A , Bogachev V V , Tsygankova V V , Tynchenko V S , Bukhtoyarov V V 
Published: November 2019

Abstract
The article discusses issues related to the improvement of the operational reliability of downhole measurement systems. The circumstances of insufficient readings accuracy due to severe operating conditions are shown. The inherent negative factors are given, which jointly affect the reliability of the systems and measuring instruments in use. In particular, special attention is paid to vibration loads and the need for their measurement. The urgency of development and research of new reliable systems is demonstrated. A developed method for measuring the vibratory condition of a drill stem and a developed device for the implementation of this method are presented, and operation of the latter is analyzed.
Analysis of the mixture of rare earth elements by atomic spectroscopy
Authors: Dzhevaga N V , Lobacheva O L 
Published: November 2019

Abstract
The authors of this paper give the characteristic and the principle of operation of the ICPE-9000 spectrometer, proposed for the chamber residue analysis that is one of the products of ion flotation, for individual rare earth elements and their mixture content by atomic spectroscopy. The chamber residue was obtained by conducting the ion flotation from nitrate solutions, containing individual rare earth elements of the cerium group and their mixture. The results of the analysis of the solutions by optical emission spectroscopy are shown in the form of molar concentration. According to the obtained experimental data, a tendency for the change of distribution coefficients, separation factors and pH values of maximum recovery at the different values of equilibrium aqueous phase pH value was identified. The possibility of the most effective separation of rare earth elements of the cerium group at different concentrations of indifferent ions was revealed, as well as the forms of recovered compounds were determined.
Determination of the composition of chalcogenid glasses ASxSE1-x by the method of X-ray fluorescent analysis
Authors: Egorova A Yu , Lomakina E S , Popova A N 
Published: November 2019

Abstract
The features of X-ray fluorescence analysis of chalcogenide glassy semiconductors are considered in the research. The standard method was used to determine the concentrations of arsenic and selenium AsxSe1-xalloys. The use of this method allows determining the quantitative composition of glasses with an accuracy of ± 0.0002.
Development of the dialogue skills in a foreign language in comparing of oil benchmarks
Authors: Goman I V 
Published: November 2019

Abstract
The aim of research is to develop skills of dialogue on professional topics in a foreign language. The objectives of the research are the following: analyze professional goals in programs; identify language skills used in the dialogue; investigate the role of self-study in developing the skills of professional communication; suggest ways of improving the dialogue skills (stimulate asking of questions, giving extended answers). Methods of research include literature analysis on the topics of oil benchmarks, methods of teaching professional communication as well as the interview with an expert in teaching foreign languages. The outcomes of research are planned to be a set of recommended exercises for developing of the dialogue skills.
Evaluation of the applicability of measurement techniques to determine the quality of drinking and industrial water used in galvanic production
Authors: Grichukha M I , Kremcheev E A 
Published: November 2019

Abstract
The scientific project «Evaluation of the applicability of measurement techniques to determine the quality of drinking and industrial water used in galvanic production» is devoted to the problems of improving the structure of the methodological base in the production laboratories of enterprises, ensuring its uniformity and efficiency. The paper presents a multi-criteria analysis of measurement methods.
Review of applicability of using indicator gas coefficients for determining the temperature of the place of spontaneous combustion of coal
Authors: Gromyka D S , Kremcheev E A , Nagornov D O 
Published: November 2019

Abstract
Spontaneous combustion of coal beds is considered to be one of the most hazardous effects of coal mining. The most dangerous factor of this process is its abruptness due to several types of coal possible emergence of reaction at low-temperature conditions and subtle reaction behavior at initial stage of the process, which may turn into environmental disaster. Therefore, on many mines and strip mines, in terms of occupation health and safety program and fire- preventing measures realization, fire monitoring system are introduced, as well as spontaneous combustion source monitoring system to apply fire-preventing measures. The most effective type of monitoring systems is gas monitoring, at which cause in many countries, including Russia, spontaneous combustion source indication methods based on fire gases concentration measurement are developed. Those methods are based on sharp increase of some specific gases, such as carbon monoxide and methane, at some point of spontaneous combustion source temperature, which differs depending on coal type and coal deposit. However, the application of those methods does not always allow the advance detection of coal spontaneous combustion areas, due to its low accuracy and dependence of fire-indication gases from external exposure. For that reason, many authors are advising ratios of fire gases or indicator gases ratios as a means of higher-precise spontaneous combustion sources indication method. In this paper, the analysis of those ratios applicability is conducted as well as existing underground fires indication methods.
Automated defect detection in oil-lubricated parts and units of D30KP/KP-2 aircraft gas turbine engines by results of microwave plasma method
Authors: Hodunaev A Y , Drokov V G , Drokov V V , Murishenko V V 
Published: November 2019

Abstract
Classifier between states of “normal/high maintenance/defective” for oil-lubricated parts and units of D30KP/KP-2 aircraft gas turbine engines is developed. The classifier is based on “random forest” machine learning algorithm. It is trained on results of microwave plasma measurements of metallic admixture in oil filter wash samples of engines. Technical state for train set was determined earlier by expert method and was confirmed by factory disassembly study. Classifier result for states “normal/high maintenance/defective” matches expert method in 73 %, 52 %, 66 % respectively.