bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis of Student Mistakes in Completing Matrix Problems in The Linear Algebra Course
Authors: Hidayanti Nur 
Published: April 2020

Abstract
Linear Algebra is a material that students generally get in high school, but there is no specification regarding sub-chapters in the material. Therefore, students must understand this concept well. Linear Algebra is a preliminary course, in which students will proceed to the Operations Research Engineering course. The research method used was descriptive qualitative research. The subjects of this study were the fourth-semester students of Informatics Engineering, Faculty of Computer Science at Banten Jaya University. Sampling was done purposively because there were significant differences between the other classes. The instrument in this study was a test consisting of 7 problem descriptions. The results of this study indicate that students make some mistakes in solving matrix problems, namely the results of matrix multiplication, the sum of the matrix, the writing of negative signs, and the writing of the matrix form.
Strategies to Overcome the Difficulty of Learning Indonesian Language Affixes for Chinese Students
Authors: Ying Y , Ruomei F , Setiana SM , Darmawan  
Published: April 2020

Abstract
This study discusses the mastery of Indonesian affixes among Chinese learners. For Chinese learners, Indonesian affixes are difficult to understand because the addition of affixes to basic words can change the meaning of words and types of words. In addition, affixes in Indonesian also experience what is called sound fusion in affix letters and basic words. From the survey, respondents are not familiar with the prefixes of me-, ber-, di-, se-, ke-, per-, the suffix of -i, and the confix ke-an, per-an, se-nya. Therefore, at the time of prefix teaching, it should be stated that the sound fusion in prefix of me- will occur if the initial letter of the basic word has the sound of /a/,/e/,/g/,/h/,/i/,/u/,/o/,/k/. When explaining the prefix di-, the learners need to be shown a comparison form and meaning with the preposition di, so that the learner understands the different uses. As for learning prefixes and other confixes, the learners need to be provided with various examples and sentence exercises so that they are accustomed to the sound fusión in prefixes and types of words changes that are formed with the addition of the affix.
Implementation of Asyik Play Model In Enhancing Character Value of Early Childhood
Authors: Watini Sri 
Published: April 2020

Abstract
Early Childhood Period is the most critical period in human life development. All aspects owned such as cognitive, social-emotional, physical-motoric, language, moral and religious values are growing rapidly. The characteristics of children at this time are identification and imitation. For this reason, it needs a good exemplary from the environment through proper education. Habits of character value need to be learned as early as possible through learning. However, in today’s age, early childhood improves the exemplary crisis. Therefore, this study aims to improve character values by applying the “Bermain ASYIK” Model. By applying this model, character values in early childhood will increase. The population in this study were children aged 5-6 years in El-Kasysyaf PAUD South Bekasi. The study was conducted in July- November 2016. The research method used was classroom action research. This method has four stages, 1) Planning stage, 2) Implementation stage, 3) Observation stage and 4) Reflection stage. The implementation of this activity was carried out in three cycles. The results of study indicated by increase character value daily living behavior of children. Percentage of character value generated by the pre cycle was 20%, while percentage from the cycle I was 23%, 28% from cycle II and 29% from cycle III.
The Effect of Multimedia in Increasing the Integers Operation Ability
Authors: Rodiyana R , Santoso E , Puspitasari W Dwi , Miko H 
Published: April 2020

Abstract
This study aims to reveal the effectiveness of multimedia in increasing the ability to calculate integers. This research was conducted in the third class of SDN Cibodas Majalengka. The research method uses quantitative methods with a pre-test post-test control group design. One class uses multimedia and one class uses ordinary learning. After analysing the data, it can be concluded that the ability to calculate integer operations of the experimental class is better when compared to the control class. Other results show that student responses are positive after the use of multimedia learning.
Development of Evaluation tool using Exam view Test Generator to measure students’ critical thinking skills at SMAN 4 Padangsidimpuan
Authors: Ariaji R , Abubakar  , Siregar S A , Harahap A F D , Siregar S , Marpaung F H 
Published: April 2020

Abstract
A learning strategy that is quite varied so that it needs a more practical and creative evaluation tool. Evaluation is still manual, giving students an opportunity to share their answer keys during the exam. This research aims to implement an evaluation tool using electronic media or commonly called electronic test (E-Exam) of chemical material in grade X SMAN 4 Padangsidimpuan. In order to change the teacher’s behavior of the learning pattern/assessment traditionally moved/migrated towards communicative system by utilizing information technology both offline and online. The study aims to develop a Exam View Test Generator Evaluation tool in accordance with BSNP standards, due diligence on expert validator lecturer and chemical teachers, as well as to the critical thinking ability of students of chemistry lessons in X-grade odd semester SMAN 4 Padangsidimpuan. Research and Development (R&D) methods use the Model DDD-E (Decide, Design, Develop, Evaluate). The results of the research with the average of expert validator feasibility test scores of 3.59 are Valid and do not need revision (worth). Based on the results of the hypothesis testing on the critical thinking ability of the students acquired SIG value. < 0.05 ie = 0.46 < 0.05 so that Ha was accepted and Ho was rejected.
The Implementation of Teaching Reading Through Genre Based Approach for University Students
Authors: Daniarti Y , Taufiq R , Sunaryo B 
Published: April 2020

Abstract
The first aim of this study investigated how the Genre Based Approach (GBA) can be used to build the university students’ motivation in reading procedure text. The second is how GBA can be used to solve the students’ difficulties in reading procedure text. It used a qualitative approach which involved the case study method. The research participants in this research were 10 of first semester students who took the advanced reading at the Informatics Engineering Department, Faculty of Engineering, UMT. The GBA can be used to build the students’ motivation (by using the extrinsic factors of motivation), and it can be used to solve the students’ difficulties. The researchers implicate, the lecturer should apply GBA to increase the university students’ motivation and helps their challenges in reading procedure text. Based on the observation, there were many students uncaring about it until the lecturer commanded them to read a procedure text. Moreover, we hope that other researchers will conduct further exploration of the teaching reading procedure text using GBA.
Task Technology Fit and Information Quality System through the Study of Naturalistic Research Characteristics Education in PPMD Gontor
Authors: Rokhayati Rosa Ade Tutty 
Published: April 2020

Abstract
The purpose of this study is to discern the direct or indirect influence of Task Technology Fit, System Information Quality through the study of the characteristics of a research at Gontor Modern Islamic Boarding School (PPMD). Using a sample of students in the PPMD Gontor Putra 3 Kediri, East Java. Sampling of purposive sampling totaling 50 respondents, carried out through the management of the characteristics of naturalistic arts education and culture. Research planning, which is a research program containing outlines, is carried out from questions to the final data analysis. This research is contrary to the assumption that social reality is unique, complex, and multiple, meaning that the research is the right approach to reveal the phenomena in the PPMD Gontor environment. The test results prove that Task technology, fit system quality has a significant influence on the naturalistic characteristics of education. Naturalistic research from concrete detailed observations on empirical social reality, so that grounded theory is built. Subsequently developed into substantive theory, middle-range theory, formal theory, finally became a theoretical frame work. This research wants to gain an understanding of educational management efforts related to Information Quality System but in collaboration with the characteristics of naturalistic theories of education.

A post-publication change was made to this article on 20 Apr 2020 as an incorrect version was published.
A numerical study of the effect of a single cylinder and plate deflector toward the Savonius wind turbine performance
Authors: Subekti A , Setiawan PA , Bachtiar  , Ariwiyono N , Prasojo B , Hamzah F , Lukitadi P P S 
Published: April 2020

Abstract
This study has investigated the effect of the circular cylinder placed at the side of advancing and plate deflector placed in front of returning blade. The CFD approach is done to solve the incompressible URANS. The numerical validation is done by comparing the experimental results using torque coefficient data for Cm=0.185 and TSR=1.078. The turbine using conventional Savonius 1 m of diameter and 1 m of height. A circular cylinder have diameter of 0.7D placed at x/D = 0.5D and y/D = 0.7D. The plate deflector is placed at 1D in front and center of turbine by varying the deflector plate on perpendicular free stream in placed in front of returning at distance variations (y/D) of 0, 0.1, 0.2, 0.3 and 0.4 with deflector angle of 30 degree towards the free stream direction and the Reynolds number of 4.32 x105. The study indicates that the deflector and circular cylinder can increase the turbine Performance at y/D of 0.3 in about 9.71 %.
The Influence of Applied Current Strength and Electrode Configuration in Laundry Wastewater Treatment by Electrocoagulation
Authors: Nugroho F.A. , Sani M. M. , Apriyanti F. , Aryanti P.T.P. 
Published: April 2020

AbstractWastewaters generated by domestic laundry processes contained a considerable amount of mineral oils, heavy metals, and other toxic chemicals that can damage the aquatic ecosystems if discarded without treatment. In this paper, the domestic laundry wastewater was treated by electrocoagulation (EC) process. EC reactor was cylindrical with a volume of 70 L and operated continuously at a fixed flow rate of 500 mL/min. The influence of current strengths and aluminum (Al) electrode configurations on EC performances were investigated. It was found that the Al electrode configuration of 3 anodes 1 cathode, which were operated at a current strength of 6 A, provided preferable results compared to the other configurations. The reductions of COD, surfactant, TDS, and turbidity were 80.76%, 27.11%, 17.66%, and 74.12%, respectively.
Aplicationof E-Government Manajemen System in Improving Village Capacity Service to The Community to Support Industrial Revolution 4.0
Authors: Maharani D 
Published: April 2020

Abstract
In the face of the industrial revolution 4.0, the village government needs to review the governance system in facing the digital era to increase the capacity of the village government to the community. Today information systems are very easy to reach by utilizing technology as a means of providing services to the community. The main thing is to provide maximum service and make it easier for the community to fulfill their daily needs. Increasing the capacity of human resources in the village government in managing government systems needs to be improved and adjusted to the development of the times in line with the era of village autonomy in accordance with Undang-undang number 06 of 2014 concerning villages. Weak capacity of human resources in managing technology-based information systems is considered to be a major factor in the failure of the village government to provide services that lead to poor development in the village. This study used qualitative research methods. The unit of analysis of this research is the government of Sukamukti Village, Cikijing District, Majalengka Regency. This research was conducted for 3 years (in 2017, 2018, 2019). Based on the research findings in the last four months in the first year of the study, Sukamukti Village government showed good performance in the administration of village governance in the era of village autonomy. The village government is able to carry out village development planning, village administration, and village financial management properly. However, the human resources of the village government face a quite serious problem, namely the lack of village officials who are able to create a technology-based village government management system. For this reason, the research team conducted a FGD to design an e-government based government system as a means of village government in organizing an effective and efficient governance system. Furthermore, as the main suggestion in this study submitted to the village government is to design regulations that govern technology-based public service systems. The regulation contains one of them is to get people used to the internet to get various information relating to village government services.
Partial Business Process Re-engineering in New Generation Cooperatives Enterprise Architecture Implementation
Authors: Dwipriyoko Estiyan , Widjajani  
Published: April 2020

Abstract
Every enterprise have Business Process Re-engineering (BPR) phase in their Enterprise Architecture implementation transitions. One of best practices in BPR is to have not more then 5 years for transitions phase. Enterprise that in transitions phase condition would experience gradual change in BPR, from partial unit change, until it has fully structural and functional change. But there was one successful New Generation Cooperatives Enterprise, that has experiencing more than 5 years time for Partial BPR phase. This research problem is about a case of successful Malaysian Collective Investment Cooperatives, that implemented SAP information systems and technology, but not change their business structure and only partially change their business strategies, for more than 5 years time. Enterprise historical data and annual reports were used for quantitative research data collections, to be analyzed in this research. Enterprise Architecture Planning framework approach were used as qualitative research method to describe and analyzed the New Generation Cooperatives Enterprise Architectures and the implementation process. This research found that Partial BPR in New Generation Cooperatives Enterprise Architecture were proven successful, because of the business profit were substantial, and the cooperatives enterprise still has the same expenditures for their remaining unchanged business structure. This Research concluded that Partial BPR could be noneffective successful, depends on how high the profit that been generated from the business process.
Analysis of Causes Damage in Flight Compartment Windows Due to Heating System Failure in Boeing 737-800 Airport Using Weibull Analysis Distribution
Authors: Jamaludin  , Sumarno  
Published: April 2020

Abstract
An aircraft is a means of transportation used to transport people or cargo from one place to another with a shorter travel time than using land and sea transportation modes. The relatively short travel time and affordable ticket prices make this mode of transportation increasingly desirable by people who want to travel from one place to another with the distance to many days if using land and sea transportation modes.The window on the airplane was installed in order to enable the crew (captain and first officer) to see the conditions outside the aircraft that support the aircraft control process. Windows must be designed as strong and lightweight as the window in the cabin. Windows must withstand the pressure generated by the pressurized cabin. The pressurized cabin is very important for aircraft flying at altitudes of more than 10,000 feet because it will affect the comfort of passengers during the flight. Additional requirements that must be possessed by the windows are that they must be able to provide clear vision to pilots in certain natural conditions such as rain, must be able to be opened so that it can be a way out for the crew during an emergency, and be able to withstand bird strikes so that flight safety and security can reached.From the results of the calculation of the analysis by the method of Weibull Flight Compartment Windows components on Boeing 737-800 aircraft, it is known that the best maintenance effectiveness for Windows Flight Compartment components is gradual degradation with a value (β)> 1,0 (1,305) is a type of wear out (wear out). While the resulting b value is 0.766. In accordance with the provisions that for b = 0,1 (probability 0,1%) is categorized as a serious failure, so special attention needs to be paid to the Flight Compartment Windows component.
Comparative analysis combustion chamber cleaners use carbon cleaner on performance engine type 16 3SZ-VE IL,-4 cylinder valve, DOHC,VVT-i, 1500cc Daihatsu Astra cars
Authors: Rosyidin A , Effendi Y , Efrizal  , Amir  
Published: April 2020

Abstract
Car transportation tools are widely used in Indonesia. The car is experiencing rapid technological development, including a family car made by Daihatsu astra with 1500 Cc. Engine Type 16 3SZ-VE IL,-4 Cylinder Valve, DOHC,VVT-I) (Toyota New Avanza type Veloz, Toyota New Avanza type G, Toyota Rush and Daihatsu Terios, production is much loved by the public 2012-2015, because it is loaded with many people affordable prices but has sophisticated technology so it is comfortable when driving. affordable prices but has sophisticated technology so it is comfortable when driving. As you use, the longer the car will experience a decrease in performance, this is caused by the engine combustion chamber experiencing crust, which results from incomplete combustion and poor fuel quality then care needs to be taken so that the car remains in top shape, Toyota’s official workshop has a new innovation that is the engine combustion chamber cleaner using Camber Cleaner. Toyota’s official workshop has a new innovation that is the engine combustion chamber cleaner using Camber Cleaner. The performance of the car will be excellent after the engine combustion chamber is cleaned using Camber Cleaner, The performance of the car will be excellent after the engine combustion chamber is cleaned using Camber Cleaner, many effects such as better acceleration, more efficient fuel, the combustion chamber will remain clean so that the combustion results released into the air will be less harmful material contentmany effects such as better acceleration, more efficient fuel, the combustion chamber will remain clean so that the combustion results released into the air will be less harmful material content. This also helps reduce air pollution caused by the large number of motorized vehicles.
Assessment and evaluation procedure of existing industrial building structure based on ASCE 41-17
Authors: Wijaya Usman , Putra I Gede E.A. , Tavio  
Published: April 2020

Abstract
Both the building structure and infrastructure in Indonesia today has increased in line with the development of planning and design regulations. Learning from the past, the concept of planning and design continues to be improved to ensure the safety of the surrounding environment. The completed building needs to be evaluated for the development of the existing structure. In terms of examining the quality of the material on the existing structural elements, a test is divided into two types, namely destructive and non-destructive. In concrete destructive test was done by coring tests while for non-destructive test the Ultrasonic Pulse Velocity (UPV) test method was used, Brinell Hardness test was used in steel. In this case industrial building were built in the 1990s. The workflow refers to ASCE 41-17 including examining existing buildings which are divided into three tiers namely Tier 1: Screening, Tier 2: Deficiency-Based Evaluation and Retrofits, Tier 3: Systematic Evaluation and Retrofits. In this paper was limited only in tier 1. From the results in both the ASD and LRFD methods obtained data that some steel members that were reviewed need to be carried out further analysis at tier-2 level where It was needed to do retrofit.
Identification of Madura Tobacco Leaf Disease Using Gray- Level Co-Occurrence Matrix, Color Moments and Naïve Bayes
Authors: Damayanti Fitri , Muntasa Arif , Herawati Sri , Yusuf Muhammad , Rachmad Aeri 
Published: April 2020

Abstract
Indonesia is one of the world’s biggest tobacco crop producers. By tobacco farmer, this plant is often even dubbed “green gold”. Madura Island is one of the best tobacco-producing areas in Indonesia. Tobacco is a significant trading crop in the eastern part of Madura Island, specifically in Pamekasan and Sumenep. The decline in tobacco yields is usually caused by pests and diseases that attack tobacco plants. Experts can easily detect conditions in plants (including tobacco) with their eyes, but this is very suitable and requires expensive operational costs when the size of the planting area is vast, and the distance of the planting area is far from the location of the expert. So that digital image processing techniques need to be applied to detect tobacco plant diseases earlier. By using data in the form of photographs of tobacco plant leaves, the condition will be identified. The method used in this research is GLCM (Gray Level Co-Occurrence Matrix) texture feature extraction, while CM (Color Moment) colour feature extraction and Naïve Bayes method are used for classification. The results of testing tobacco identification obtained the best accuracy of 82.2% for Pamekasan tobacco and 84.4% for Sumenep tobacco. The best results are obtained by using the colour feature extraction.
Layers Modification of Convolutional Neural Network for Pneumonia Detection
Authors: Setiawan Wahyudi , Damayanti Fitri 
Published: April 2020

Abstract
Pneumonia is a bacterial, virus and fungi infection that attacks respiratory function. The disease causes air sacs in the lungs inflamed and swollen. It conditions produce lungs filled with fluid and mucus. Generally, the detection of pneumonia was done by chest x-ray images. This study discusses the detection of pneumonia through x-ray images using Convolutional Neural Network. The CNN model was Visual Group Geometry VGG16 and VGG19. As a comparison, we used the modified CNN 35 layer. The experiment using public data from Chest X-Ray Images - Kaggle. Data consist of 2 classes: normal and pneumonia with a total of 624 images. The results using VGG16 show a performance measure of sensitivity 92.75%, specificity 96.8%, and accuracy 94.1%. The result of VGG19 has sensitivity 96.6%, specificity 94.3%, and accuracy 95.7%. For CNN 35 layer has sensitivity 95.1%, specificity 98.5%, and accuracy 96.3%.