bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparison of Knowledge-Based Reasoning Methods to Measure the Effectiveness of Diagnostic Results
Authors: Ramadhan Puji Sari , Marsono  , Hutagalung Juniar , Syahra Yohanni 
Published: February 2021

AbstractThis study describes a comparative analysis of methods in knowledge-based reasoning which aims to determine the best and optimal method in producing a diagnosis of a disease. The methods to be compared are Bayes’ Theorem, Certainty Factor, and Euclidean Probability. The three methods were chosen because they can generate hypotheses from several existing possibilities, this can be seen from the many uses of these methods in previous studies. With this research, it can be used as material for consideration or support in producing a diagnosis conclusion. The process of testing the comparison of these methods is carried out by selecting the highest diagnosis result value and performing a comparative analysis using exponential techniques. The results of this test indicate that the Euclidean Probability produces an accuracy value of 75%, then the Bayes Theorem obtains an accuracy value of 62% and the Certainty Factor obtains an accuracy value of 87%. In addition, the results of the comparison of methods using exponential techniques show that Euclidean Probability gets 84%, then Bayes’ Theorem gets 78% and the Certainty Factor gets 87%. With these results, it can be concluded that the Certainty Factor is better than Euclidean Probability and Bayes’ Theorem in diagnosing disease.
Impact of queue tree and layer 7 filtering combination to bandwidth management in 802.3 Network
Authors: Ichsan Aulia , Suherman  , Erna B Nababan , Al-Akaidi Marwan 
Published: February 2021

Abstract
Bandwidth management on commercial local area network should be maintain as efficient as possible so that users connections experience best performances and are treated equally and fairly to support business activities. Unsuitable bandwidth management may cause unstructured user management and lead to bandwidth degradation during busy hours. Some users may occupy network more than the others. Some existing works have proposed bandwidth management approaches. This paper combines queue tree and layer 7 filtering by applying traffic priority, committed information rate (CIR) as well as applying specific data pattern to preserve bandwidth. As results, at the evaluated network, the combined method guarantees in average 2 mbps bandwidth for upload/download traffic with average CIR 250 kbps per client. The ICMP test produces average 20 ms delay which is in excellent category. Average jitter 18 ms and packet loss is zero. Further, specific data pattern implementation is able to preserve the total 20 mbps available bandwidth without omitting the CIR guarantee in each client.
Analysis of Groundwater Quality in Dusun Salam and Randuacir, Argomulyo District
Authors: Vina N , Harling Van , Tobi Markus Dwiyanto 
Published: February 2021

Abstract
Groundwater quality is very much influenced by soil type, soil content, and water flow pattern in the soil. Dusun Salem and Randuacir are hamlets not far from the final garbage dump in Salatiga. This research was conducted to determine the condition of groundwater in Salam and Randuacir hamlets, Randuacir Village, Argomulyo District. The samples were taken as many as 19 wells and the sampling was done randomly by disproportional stratification. To determine water quality, the data from the measurement results of heavy metals [Copper (Cu2+), Manganese (Mn2+), and Zinc (Zn2+], chemical and bacteriological parameters of well water are compared with drinking water quality standards according to Government Regulation No. 82 of 2001 concerning Water Quality Management and Water Pollution Control. Meanwhile, the physical parameters are compared with the Regulation of the Minister of Health of the Republic of Indonesia Number 32 of 2017 concerning Environmental Health Quality Standards and Water Health Requirements for Hygiene, Swimming Pools, Solus Per Aqua, and Public Baths. To determine the level of groundwater pollution, the Pollution Index (IP) is used according to the Decree of the State Minister for the Environment No. 115 of 2003. Based on the results of the study, it can be concluded that: 1) Of the 19 wells in Salam and Randuacir hamlets, there are 3 wells (15.79 %) contaminated with Cu2+, Mn2+, and Zn2+, 2 wells (10.53%) were contaminated with Cu2+ and Zn2+, 6 wells (31.58%) were contaminated with Mn2+ and Zn2+, and the remaining 8 wells (42.10%) were contaminated with Zn2+; 2) Based on the pollution index (IP) of the 19 wells studied that are within a radius of less than 1 km and more than 1 km, all wells are lightly polluted (100%).
Compressive Strength, Permeability and Porosity Analysis of Pervious Concrete by Variation of Aggregate and Compacting Method
Authors: Sanjaya Nico , Saloma  , Hanafiah  , Juliantina Ika , Nurjannah Siti Aisyah 
Published: February 2021

Abstract
Pervious concrete is one of the innovation from conventional concrete which has interconnected void, thus enabling it to drain water. Compared to conventional concrete, pervious concrete has different physical and mechanical characteristics, but composed by the same material which is Ordinary Portland Cement (OPC), coarse aggregate, water, fine aggregate, and admixture. The use of fine aggregate in pervious concrete mixture is limited due to the fine aggregate can block the interconnected pores thus lowering the permeable ability of the pervious concrete. The objective of this research is to analyze the characteristics of the pervious concrete which is compressive strength, permeability, and porosity with variation of aggregate and compacting method. The pervious concrete mixture consists of 15%, 20%, and 25% of fine aggregate variations and standard rodding, proctor Hammer, and concrete vibrator as the compacting methods used. The amount of cement used on each mixture is 360 kg/m3, w/c = 0.3, and admixture as much as 2.8% of the cement used. The slump, compressive strength, and porosity test is based on ASTM Standard, while the permeability test is based on ACI Standard. The maximum compressive strength test result is 13.103 N/mm2 achieved by the mixture with 25% fine aggregates and compacted using concrete vibrator. The permeability test result ranged from 0.053 cm/s to 1.192 cm/s, and porosity ranged from 2.261% to 41.083%.
Prototype Design of Wireless Electric Energy Transmission System and Distance Electric Recording Record System Using PZEM004T and NRF24L01 Module
Authors: Tobi Markus Dwiyanto , Van Harling Vina N 
Published: February 2021

Abstract
Electrical energy can not be separated from the name kWh Meter, a tool used to measure and record the amount of electrical energy usage has a shortage of kWh meters can not be monitored remotely how much energy is used, so it is rather inconvenient for PLN officials to check the use of electricity for postpaid customers. This research was conducted to design a prototype of a wireless electrical energy transmission system and design a wireless electrical energy recording system using the NRF24L01 wireless transmitter module and the PZEM004T kWh meter module. The design in this study uses the principle of electromagnetic induction to transfer electrical energy at close range, while to transmit data, the authors use the NRF24L01 module. Besides, the authors use the PZEM004T module to measure various magnitudes. Based on the results of observations and measurements of the design of the tool, the authors found that the transmission of electrical energy using electromagnetic induction is not effective for longer distances because the energy lost in the air is getting bigger. So this technology needs to be further investigated. Besides, the measurement of electrical quantities using the PZEM module has a small difference (under 2%) with measurements using a multimeter, so it can be said that the measurement with the PZEM004T module is effective
Transient Voltage Programming in Electric Power Grounding System
Authors: Syafruddin R , Herawati YS , Ramady Givy Devira , Hidayat Wisnu , Lestari Ninik Sri , Anung  
Published: February 2021

Abstract
Liner equations with n variables can be solved if there are n equations, the matrix is formed n x n square matrix, using the inverse matrix method. In this research, the linear equation used comes from the rod and mesh grounding system method, which is solved by the finite element method to calculate the grounding impedance, from the results of other research researchers. Here the researcher wants to inform in this study how to solve the linear equation with a calculation program. And the research results are plotted in Cartesian coordinates V = V (t). The results of this calculation program can be used to estimate how much the transient voltage is in the ground rod / mesh in the place where the electrical power system substation will be built when lightning strike with an amplitude of 34 kA/switching with a current of 34 kA/step with a current of 34 kA crash it. To adjust the transient voltage by adjusting the length of the finite element, required in accordance with the applicable safety level, while the subsequent arrangement can by increasing the number of mesh or increasing the length of the mesh.
Quality Control of Frame Production Using DMAIC Method in Plastic PP Corrugated Box Manufacturer
Authors: Tannady Hendy , Purwanto Edi 
Published: February 2021

Abstract
Corrugated carton boxes as a storage for products is common use in industry nowadays, corrugated carton box has many advantages, hardiness, air resistance, more neat and strong. To produce this corrugated box, it needed a frame to support the edge of the carton to make it stronger. This study was conducted at one of the pp corrugated manufacturers in Indonesia. The company oftenly receive complaints caused of quality problems of the frame. Research aimed to provide quality improvement using DMAIC (defining-measuring-analyzing-improving-control) as analysis method. The results of study concluded that the causes of defect consist of several factors, human factors, poorly trained of machine operators. The second cause is the engine factor, the barrel screw used has an incorrect temperature and rotation speed of the screw is inappropriate. The third cause is the material factor, dirty materials that was entered the machine affected the size of materials produced. Improvements carried out using design of experiment and standard operation procedures.
Compressive Strength and Microstructural of Palm Oil Fuel Ash-Fly Ash Based Geopolymer Mortar
Authors: Humaedi Muhammad Dwi Caesar , Saloma  , Hanafiah  , Iqbal Maulid M. 
Published: February 2021

Abstract
The infrastructure develops very rapidly, along with the increase of market demand for cement, but there is a problem of cement production. Cement production can produce hazardous wastes of CO2. CO2 can cause greenhouse effect. The amount of CO2 produced by cement production is equal to the amount of cement produced. To overcome these problems, it needed to look for alternative materials for cement substitution. Geopolymer is an alternative material that can be a replacement or substitution for cement. Geopolymer can reduce CO2 wastes generated by cement production and also can reduce industrial generated waste such as fly ash and palm oil fuel ash. In the manufacturing of geopolymer, this study used fly ash and palm oil fuel ash acting as precursor and also Na2SiO3 and NaOH as activator solution. This study aimed to examine the effects of the ratio of alkali activator in this case is Na2SiO3 and NaOH to microstructure of geopolymer mortar with fly ash and palm oil fuel ash precursor. This study used a variation of 75%:25%, 50%:50%, 25%:75% precursor compositions and variation of alkali activator ratios of 1.5, 2.0, and 2.5. This study used the concentration of NaOH of 14 M. The results showed that along with the increase in concentration of Na2SiO3 and NaOH, the structure seen on the mortar becomes denser and the greater fly ash content in the mortar precursor mixture the structure also become denser.
BCM PIN Read Conversion Application on Intelligent key Vehicle registration on Android Based
Authors: Sujana Ahmad , Mahardika Andrew Ghea , Herawati  , Muntiyono  , Afiyah Salamatul , Hidayat Rahmad 
Published: February 2021

Abstract
Intelligent-key registration is a process of registering smart remote vehicles so that the vehicle security system is not misused. The application of the conversion of pin-read BCM has been designed to run on android with a smart device that uses the media app developer inventor. This application made to allow intelligent-key registration was a conventional stage in registration in the process. But, using this application registration intelligent-key so more efficient and effective. Developed with an evolutionary prototyping method of development. With a model test in testing and behavior of testing was definitely black box uml. An application that is built enough to fulfill its sales target in the spare part, help when processing intelligent-key registration, and easily used for emergency service.
The Relationship Between the Electromagnetic Field Amplitude and its Frequency in a Single Photon
Authors: Goenawan Stephanus Ivan 
Published: February 2021

Abstract
The current theory in physics states that amplitude, namely the amplitude of the electric and magnetic fields, is continuous. It is proposed in this paper that these two types of amplitude can be quantized. This study reports that the amplitude of the electromagnetic field is discrete. Two methods were used to generate an equation of the discrete amplitude of the electromagnetic field, namely the Maxwell’s theory of Electromagnetic Field and the Einstein’s theory of the photoelectric effect. According to the results of the theoretical analysis, the lowest amplitude of the electric field and the lowest amplitude of the magnetic field depend on the magnitude of frequency of the electromagnetic field. The study concludes that in a photon containing an electromagnetic field amplitude equal to the E-Goen or B-Goen constant is multiplied by the square of its frequency.
Role of using some Hybrid Nano-Fillers on the Strength and Creep Resistance of Fiberglass/Epoxy Composit
Authors: AL-Hassan Raad Abd , Al-Ameen Ehsan Sabah , Nassir Layla M. 
Published: February 2021

Abstract
The effect of adding hybrid nanomaterials (multi-walled carbon nanotubes (MWCNT) with calcium carbonate (CaCO3)) was studied and compared with the effect of adding only one of those nanomaterials and without any addition on creep behavior at 40 ° C and constant applied load. Two different additives weight ratios were studied (1% and 2%) from the weight of epoxy. Three layers of Bi-directional (0-90) glass fibers used as reinforce material the epoxy matrix. vacuum bag technology and sound wave device were used for samples preparation according to the standards. The Samples were tested with crawl tester designed and manufactured according to engineering specifications and standards. The results showed that there was an improvement in the creep behavior and a high creep resistance of the samples with the hybrid nanocomposites compared to the neat samples.
Compared with Angle –ply and Cross-ply Natural Fiber Orientation Pipe under Thermal Load
Authors: abdulla Fadhel Abbas , Bader Sura Thaar 
Published: February 2021

Abstract
Experimental and analytical Solution using classical shell theory solve by Matlab software was used to found thermal stresses under thermal load for natural composite materials pipe. Jute fibres were used in this work and reinforcements with polyester-resin. The experimental work including the manufacturing of the test samples (jute fibres/polyester) with different types of fibres orentiation (0°, 45°, 90°) by resin casting method. The volume fraction is 40%. Tensile and thermo-mechanical test were performing to find the mechanical properties of the specimens The results showed that Angle –ply fiber orientation natural composite had the highest strain and stress compared with cross-ply fiber orientation natural composite.
Cracks Evaluation of Reinforced Concrete Structure: A Review
Authors: Zaki Ahmad , Murdiansyah Lukman , Jusman Yessi 
Published: February 2021

AbstractMany reports state how serious the problems associated with cracking in reinforced concrete (RC) structures worldwide. The cracking can cause damage and destruction to RC structures. The cracks are the damage to RC structures that require repair or replacement. Analysis of the damage level as early as possible on the RC structure cracks can reduce the greater impact and streamline the cost of repairing the concrete structure. Therefore, non-destructive testing (NDT) method is needed on the RC structure, namely: visual inspection technique. The image obtained from the visual inspection is then analyzed using image processing. After that, the concrete structure with cracks is tested for quality (compressive strength) using the rebound hammer technique with a rebound index. From the image processing and rebound index results, the damage from the cracks that occurred can be concluded so that the repairs become more effective and efficient.
Remote Sensing Analysis of Lineaments using Multidirectional Shaded Relief from Digital Elevation Model (DEM) in Olele Area, Gorontalo
Authors: Abduh A G , Usman F C A , Tampoy W M , Manyoe I N 
Published: February 2021

AbstractThe Gorontalo fault zone is an active fault that crosses Gorontalo Province with a movement of about 11 mm/year. The existence of this fault zone affects the morphological lineaments and offsets along its path and increases the potential of geological disaster hazards. The Olele area is located in the Gorontalo fault zone that makes it potential to landslide disaster. This study aims to analyze the lineaments of the Olele area and its surroundings. The results of this analysis will help to determine the geological structures distribution pattern that develops in the study area and its impact on the mitigation of landslide disasters in the study area. This study uses a spatial analysis method using Digital Elevation Model (DEM) image to analyze slope and lineaments data in the study area. The results of the analysis will be correlated with regional geological structures and give recommendations for geological disaster mitigation that can be implemented. The results showed that the slope class in the study area was dominated by the range of 16-35° and even in several places with a slope of 35-55°. The results of the extraction and processing of lineaments data get 203 data. The lineaments direction is relatively NNW - SSE. This direction indicates that mostly the morphologies are influenced by the existence of the Gorontalo fault zone. The existence of the Gorontalo fault zone makes this area prone to landslide disasters in the case of Gorontalo fault movement. Some prevention recommendations are to increase the slope stability level.
On Vertice and Edge Regular Anti Fuzzy Graphs
Authors: Nusantara Toto , Rahmadani Desi , Hafiizh Mochammad , Dia Cahyanti Elita , Bin Gani Abdullah 
Published: February 2021

Abstract
The concept of regular fuzzy graphs has many applications, especially in jobs that involve network distribution, such as electricity, gas, and energy. In this article, we introduce the degree of vertices, the total degree of vertices, the degree of edge, the total degree of edge, the regular anti fuzzy graphs, and the total regular anti fuzzy. We derived some basic properties of regular and total regular anti fuzzy graphs, included the comparison of both troughs some various examples. We also showed the necessary and sufficient conditions under which their equivalence. We described some properties of regular anti fuzzy graphs and examined for totally regular anti fuzzy graphs.
Improving Students’ Mathematical Argumentation Skill Through Infusion Learning Strategy
Authors: Tristanti Lia Budi , Nusantara Toto 
Published: February 2021

Abstract
This study aimed to develop infusion learning strategy to improve students’ mathematical argumentation skill. One problem of mathematical learning in college was that students had low competence to solve problems, particularly in argumentation. To cope with that issue, therefore, infusion learning strategy was developed. It aimed to assist students in improving their argumentation skills. The stages of infusion learning strategy were based on theory of argument by Walton. This study applied Research & Development (R&D) method with procedures of development by Borg & Gall which had been modified into 10 stages, but it was restricted to 6th stage. The instrument of this study used validation sheet, test of mathematical argumentation, and interview guidelines. The result referred to a valid product of infusion learning strategy which implementation could improve students’ mathematical argumentation. Another result of this study found that students’ argumentation skill progressed/improved.
Analysis of Intensity, Duration, and Frequency Rain Daily of Java Island Using Mononobe Method
Authors: Faradiba  
Published: February 2021

Abstract
The importance of analyzing rainfall is expected to help in handling disaster-prone areas, so that the consequences can be minimized. This study aims to determine the intensity of rain in the short term. The data used in this study is the annual rainfall data in Java for 2005 - 2019 for each province. The method used in this study is the Mononobe Method to see the intensity of daily rain and its daily return period. The results of this study indicate that the intensity of rain during the duration of one hour to three hours decreases quite significantly, but at the duration of four to eight hours the decrease in rain intensity is not as big as the decrease in the duration of one hour to three hours. The highest rainfall intensity is in the one hour duration in West Java Province. However, the intensity for the five to eight hour duration tends to be the same for 6 provinces in Java. The rainfall threshold in Java is included in the category of heavy rain. High rainfall intensity lasts for a short duration, on the other hand, rainfall with low intensity tends to occur over a relatively long duration.
Problem Based Learning using Open Educational Resources to enhance Higher Order Thinking Skills in Physics Learning
Authors: Sulisworo Dwi , Fakhrunisyah  , Basriyah Khusnul 
Published: February 2021

Abstract
This research aimed to find out the difference of higher-order thinking skills in terms of learning motivation and ICT literacy between students experiencing PBL (Problem Based Learning) assisted with open educational resources and those experiencing PBL without open educational resources. This research is a quasi-experimental with a pretest-posttest control group design. The population was eighth-grade students. The sampling technique used cluster random sampling. Variables in this research included an independent variable of the PBL model assisted with open educational resources, a dependent variable of higher-order thinking skills, and covariates of learning motivation and ICT literacy. Data collection used tests in the forms of question instruments, learning motivation questionnaires, and ICT literacy questionnaires. The data analysis technique used N-Gain and ANCOVA. The result of the research shows the difference of higher-order thinking skills between students in the experimental class that implemented the PBL model assisted with open educational resources and those in the control class that implemented the PBL model without open educational resources. This can be seen from the average score of the N-Gain test of the experimental class that is 0.35 with a moderate category while the average score of N-Gain of the control class is 0.29 with a low category. Therefore, there is an influence of the PBL model assisted with open educational resources on higher-order thinking skills.