bluuebunny/crossref_metadata_2025_split huggingface dataset:
Short-term Traffic Flow Prediction based on Data-Driven Knearest neighbour Nonparametric Regression
Authors: Chen Ken , Zhao Shasha , Zhang Dengyin 
Published: June 2019

Abstract
In order to solve the problem that the KNN algorithm is not accurate enough in the short-term traffic forecasting process and the prediction efficiency is not high caused by the search for past observations, a short-term traffic flow prediction model based on data-driven K-nearest neighbor non-parametric regression is proposed. The model is developed based on two-step search algorithm. Firstly, in the non-predictive period of time, the candidate input data similar to the current state is searched from the historical data for the system. Then, the optimal decision input data for prediction is identified from the candidate input data at the predictive point. Finally, the best decision input data is used to generate the prediction through the prediction algorithm. The simulation results show that the algorithm can effectively reduce the time for searching historical data on the premise of ensuring the accuracy of system prediction, thus reducing the execution time in the process of system prediction and improving the prediction efficiency of the system.
Application of Space Co-location Mining in Urban Construction
Authors: Lv Guoshuai 
Published: June 2019

Abstract
with the continuous development of the world economy, people’s living quality has been improved significantly, but meanwhile a series of urban construction problems have occurred. Due to the increasing population, the number of residential areas, schools, hospitals and other facilities is increasing, and unreasonable distribution will inevitably take place. The main purpose of urban planning is to coordinate the specific arrangement of urban spatial layout and various concrete construction by rationally utilizing the urban land according to the determined nature, scale and development direction of the city. From this point of view, by planning the city to make the population of the city rationally distributed, and fully analyzing the factors of people’s gathering according to the existing layout of the city, these elements can be planned and constructed in a centralized manner so as to solve the problems of transportation, environment, etc. in the city. This paper analyzes the reasonable and advanced urban layout and extracts useful knowledge from the spatial data, thus helping the relevant agencies of the government to plan and develop the new urban area.
Application research of the partial discharge automatic detection device and diagnostic method based on the ultrasonic in long distance GIL equipment
Authors: Wei Xu , Teng Yun , Liu Zi-quan , Deng Jie-qing , Jia Yong-yong 
Published: June 2019

Abstract
Gas-insulated transmission lines are very long with the length over 100 meters for each single chamber and there are no non-metal connection parts between two chambers, which leads to a poor detect effect when using the UHF method. Because of the attenuation of the propagation process, the ultrasonic detection method has many measuring points and a large workload of manual detection. To solve these problems, an automatic detection device and diagnostic location method based on ultrasonic method for the partial discharge of GIL were proposed in this paper. By combining the ultrasonic partial discharge detection device with the inspection robot, the robot performs the partial discharge inspection and transmits the data to the background diagnostic system for analysis. The overall structure of the system, the method of automatic diagnostic and location are introduced. The effectiveness of detection, diagnostic and location of the system is verified by simulation of the discharge signal in the laboratory. The application of the system can avoid the possible limitations of manual inspection in GIL Partial Discharge Ultrasonic testing, improve the work efficiency and guarantee the safe operation of power system.
Optimizing Semiconductor Laser PIDNN Decoupling Control Base on CPSO
Authors: Xia Peng , Lin Yao , Zhang Li-Hua 
Published: June 2019

Abstract
The coupling model of semiconductor laser is established for optical port components. The decoupling controller is designed by PIDNN, which enables the controller to response quickly and set parameter. The initial value of PID parameter is optimized by CPSO, and the appropriate initial value can make the system stable and reach expected value. CPSO can effectively prevent weight parameter search from falling into local optimal, and has a fast search speed.
Fabrication and evaluation of a printhead with integrated electrodes for electrohydrodynamic jet printing on insulating substrate
Authors: Pan Yanqiao , Zeng Liangcai 
Published: June 2019

Abstract
Printhead with integrated electrodes plays an important role in electrohydrodynamic jet (E-jet) printing, which can remove the effect of substrate and may be potentially used in fabrication of microelectrodes for flexible electronics. In this paper, we propose a printhead with integrated electrodes to achieve E-jet printing on insulating substrate. Evaluation of the printhead is performed by E-jet printing tests of ethylene glycol in order to validate correctness of design and feasibility of printing on insulating substrate. The printing tests on silicon indicate that the design of proposed printhead with integrated electrodes is correct which can work normally. However, influence of repulsive force by remaining electric charges on substrate is the main cause for failure tests on PET substrate. This research can provide a lesson to implement E-jet printing on insulating substrate in future.
Computer-Assisted Assessment Model to Decrease Math Anxiety And Increase Mathematical Self Efficacy of Junior High School Students
Authors: Nasution S H , Qohar A , Susiswo  
Published: June 2019

AbstractThe purpose of this research was to produce a computer-assisted assessment model as valid, practice, and effective to decrease math anxiety and increase mathematical selfefficacy of junior high school students. The product that would be gained was assessment computer-assisted that using Moodle and GeoGebra Software. This research referred to ADDIE development model that had five stages, they were Analysis, Design, Develop, Implementation, and Evaluation. The data collection techniques of this research were using students’ anxiety questionnaire and students self-efficacy questionnaire. The validator stated that the product which was developed was valid without revision. Product trials was done to 30 trials subject and gained that there was a decrease in anxiety level from medium anxiety (the anxiety average score 23,73) to lowest anxiety (the anxiety average score 10,3) and there was an increase to the self-efficacy average score from 27,13 (medium self-efficacy) became 37,36 (high self-efficacy).
Students’ Mathematical Communication in Solving Combination Problems
Authors: Sukoriyanto  
Published: June 2019

AbstractThe purpose of this study was to describe students’ mathematical communication ability in solving combination problems. This study involved 27 students majoring in mathematics, Mathematics and natural science faculty who took discrete mathematics subject. Students were asked to solve combination problems. Based on students’ works results, the ability of students were categorized into three categories, namely high ability, medium ability, and low ability. From each ability group, one student was chosen to describe their mathematical communication ability. The research results showed that the student with high ability was able to do written text well, do mathematical expressions well, and gave the correct final answer. while the student with medium ability was only able to do mathematical expressions. The student with low ability was not able to do written text, was unable to do mathematical expressions, and was unable to provide the correct final answer.
Mathematics Learning Difficulties of Slow Learners on A Circle
Authors: Metikasari S , Mardiyana  , Triyanto  
Published: June 2019

Abstract
Slow learners are children who have low intelligence in which these children need more time to study than normal children. The aim of this research was to analyze some mathematics learning difficulties of the slow learner on a circle and the strategies to overcome the difficulties. This exploratory study research used qualitative approach. The subjects were two of the 8th grade’s slow learner students in Islam Diponegoro Junior High School Surakarta. Data collection was done using documentation, testing, and interview method. Based on the data analysis, the results showed that the subjects dominantly had mathematics difficulties on a circle that were categorized in ideognostic dyscalculia, in which they had difficulties in understanding mathematical ideas and relationships towards the circle especially in the new situations (variety of problems), because of difficulty in recalling mathematical ideas after learning it; and operational dyscalculia, in which they got difficulties in performing arithmetic operations and mathematical principle, because they did not comprehend the algebraic concepts. The strategies to overcome these difficulties were encourage the students have clear conception by using teaching aids such as paper-circular or cylindrical cans so that the students could find out the value of phi, circumference, area, radius, diameter of the circle.
Development of Math Comic Learning Media on The Subject of Algebraic Expressions for Seventh Grade of Junior High School Students
Authors: Hidayah I N , Fathimatuzzahra  
Published: June 2019

Abstract
This development research aimed to 1) know the development process of mathematical comic learning media on the subject of algebraic expression that was valid, practical, and effective for grade VII of Junior High School students, 2) obtain mathematical comic learning media on the subject of algebraic expression which was valid, practical, and effective for grade VII of Junior High School students. The development model was using a modification of 4-D development model from Thiagarajan, Dorothy S. Semmel, and Melvyn I. Semmel became a 3-D development model. The procedure of this development consisted of three stages, namely 1) define, 2) design, and 3) develop. The results of this study were 1) The process of developing comic learning media that was valid, practical and effective was found. 2) The mathematical comic learning media products on the subject of algebraic expression that was valid. From the validity data analysis, a validity of learning media score is 3,3, lesson plans obtain a validity of lesson plan score is 3,66. a validity of knowledge assessment instrument score is 3,46, a validity of the students’ responses questionnaire score is 3,84. 3) The mathematical comic learning media products on the subject of algebraic expression was practical with practicality score is 3.3214 and 4) The mathematical comic learning media products on the subject of algebraic expression was effective were obtained. The products produced were two comic books with the subject of introduction to algebraic expressions and addition, subtraction and multiplication operations of algebraic expressions. The subject was presented in the form of stories with illustrations of black-and-white images and was equipped with practice questions.
CAKA as Physics Learning Media Based on Android Apps on Smartphones
Authors: Kurniawan H D , Kuswanto H 
Published: June 2019

Abstract
In this research, we aimed to design physics learning media based on Android apps on smartphones. The media were tested to ensure their validity, practicality and efficiency for learning activities. We used the Analysis, Design, Development, Implementation and Evaluation (ADDIE) model as the model of development. The media were tested through three steps: peer, expert and small group test. Data were collected via questionnaires, interviews and observations. This research produced physics learning media based on an application named CAKA (Becak Fisika). CAKA contains some senior high school physics topics such as work and energy, Newton’s laws and circular motion. The results showed that the CAKA learning media had good compatibility and there were no significant problems when they were used. The CAKA application was tested, and the result was found to be valid, practical and efficient for learning activities.
Students’ Energy Awareness Profile of High, Mid, and Low Levels Junior High School Student in Sragen
Authors: Nugroho W A , Sajidan  , Maridi  
Published: June 2019

Abstract
Energy awareness needs to be owned by students because environmental and energy problems in the 21st century become more complicated. This research was conducted to describe the profile of students’ energy awareness. The descriptive analysis method was used as the research method. Eighty-four junior high school students in Sragen Regency were selected as the subject. The subjects were selected through purposive sampling technique. The energy awareness instrument was adapted from Climate Literacy and Energy Awareness Network (CLEAN) by National Science Foundation and modified based on energy awareness model from Muhammad G. Hassan which included Environmental Concern, Visibility of Consumption, and Educational aspects. The results showed that the students’ energy awareness on visibility consumption was 52.72% with enough category acquisition while 23.76% on the environmental concern and 21.41% on the education aspects indicate quite low criteria. Based on the results, it can be concluded the students’ energy awareness in Sragen was relatively low, so need to be improved.
Climatic factors, Habitat Conditions and Nesting Behavior of White-Headed Munia (Lonchura maja) Birds
Authors: Ciptono  , Pramudihasan Aghnan , Aji Pangestu Wicak , Surya Fathoni Alfian 
Published: June 2019

Abstract
Scaly-breasted and white-headed Munia bird (Lonchura maja), is one of three species of Lonchura birds that live arround UNYcampus. Life habit and behavior is not well known. This study was done by observing the natural behavior without giving treatment to the object of research. The process of observations conducted from June to August 2017. This study aims to determine the condition of vegetation and climatic environment arround UNY and the behavior of Lonchura birds, and determine ideal conditions for nesting. All data collected by visual observation. These results indicate that the vegetation condition arround UNY related to Lonchura wildlife on campus, divided into 6 different locations. Each location has climatic conditions and different environmental carrying capacity resulting in species of birds that inhabit it any different. Scaly-breasted bird requires fairly dry location with an ideal temperature for the activity in the range of 27ºC, humidity is above 50% and the intensity of light that tends to light. Nesting sites of Lonchura made amid a clump of tree stands with a height at the top of the half-height of the tree. The most ideal conditions for Lonchura is the availability of feed such as grass seeds, the availability of dry grass for nest materials and also stands at over 4 meters high as nesting sites.
Population dynamics of Auricularia delicata fruit bodies in Bingungan forest, Turgo
Authors: Prasetiya D. , Aminatun T. 
Published: June 2019

Abstract
We have already done describing clearly enough about the particular substrates as Auricularia delicata habitat. Along with that research, another study was population dynamics of Auricularia delicata fruit bodies, among density and all measured environmental factors (temperature, air humidity, light intensity, pH, and water content of the substrates) which were carried out in Bingungan forest for eight months, 136 sampling from rainy season began to early dry season. Those data were analyzed using time series analysis which visualized in FIR (Finite Impuls Response) graphs and discriminant analysis (LDA) to classify similarity among plots and samplings. The population dynamics of Auricularia delicata fruit bodies might be modeled using GEE (Generalized Estimating Equation) analysis for forecasting purpose. Therefore, we have representation about when the best timing of Auricularia delicata did fruiting process in what conditions really were.
Fern Diversity in Taman Nasional Gunung Merapi and Its Potency as a Biology Learning Resource
Authors: Ayu Din Illahaqi Aza , Aloysius Suyitno 
Published: June 2019

Abstract
In the kingdom of Plantae, fern (Pteridophyte) is one of the largest and diverse plant group. They are dominant on the forest floor in warm temperatures and high humidity. This research aims: (1) to present the diversity of fern in Taman Nasional Gunung Merapi (TNGM), (2) to analyze the potency of fern diversity in TNGM as biological learning resources and (3) the feasibility of Pteridophyte Photo Sequence as learning media. The research was carried out through observation for identifying anykinds of fern and analyzing the potency of fern diversity as a learning resource, especially to study the Pteridophyte. In order to develop media photo sequence, this research used the ADDIE model (Analysis, Design, Development, Implementation, and Evaluation), but it was limited to the step of Development. The result showed that seventy five species of fern have been found in TNGM which is included in the 3 of 4 classes i.e. Lycopsida (8 species), Equisetopsida (1 species), and Pteropsida (66 species). It could be used as learning resource on subtopic of Pteridophyte for high school students in 10th grade based on Biology Curriculum 2013. The feasibility value for media photo sequence of pteridophyte in TNGM showed “very good” category.
Development of Bio-Monopoli of Human Musculoskeletal System as Learning Media for High School Students
Authors: Suwarno R N , Suratsih  
Published: June 2019

Abstract
The purpose of this study are: (1) to develop Bio-Monopoli, an educational game as learning media of Human Musculoskeletal System topic for High School students; (2) to find out the appropriateness of the Bio-Monopoli; and (3) to identify whether there is any difference in student’s learning motivation pra-experimental and post-experimental using Bio-Monopoli. This was a ‘Research and Development’ (R & D) study referring to 10 Borg & Gall’s stages (1983). The study’s subjects are theorist, Biology teacher, media experts, and students of XI IPA of MAN 1 Sleman. Data collected by purposive random and incidental sampling technique using questionnaire. The data of the media’s appropriateness were analyzed descriptively. The data of student’s learning motivation were analyzed by Wilcoxon Signed Rank Test and N-gain calculation. The result shows that Bio-Monopoli is very good and effective according to the respondents based on media engineering, visual communication, and learning aspect. There is a significant difference of student’s learning motivation pra-and post-experimental using Bio-Monopoli. Learning motivation’s increase included in moderate criteria with 0.424 in N-gain score.
Instructional technique questions in the planning phase of project based learning to increase the score of concept map
Authors: Arya Widatama Dita , Widoretno Sri , Dwiastuti Sri , Sajidan  , Maridi  
Published: June 2019

Abstract
The study aimed to improve student’s Concept map (CM) scores through the application of instructional techniques questions in the form of planning investigation according to driving questions (planning) in Project Based Learning. Research is a Class Action Research with 3 Cycles, including: planning to compile the lesson plan and its completeness, implementation of actions, observation, reflection and construct of expert CM. The research subjects consist of 35 high school students. Validation data use triangulation method: verification of CM scores suitability and documentation based on CM experts and interviews. Data analysis is done with qualitative descriptive: reducing, presenting data and drawing conclusions based on complete CM data. The results showed that the teacher’s questions functioned as instructional techniques that increased the CM scores of students but variation presented in component CM.
Development of Biology Learning Media Based on Adobe Flash to Increase Interest and Conceptual Understanding
Authors: Astuti Esti , Nurcahyo Heru 
Published: June 2019

Abstract
This research aims to know the feasibility and effectivity of interactive biology learning media product of human reproduction system based on adobe flash and to know the influence of application of learning media developed to increase interest and conceptual understanding. This development research refers to the developmental step by Borg & Gall. The field trial subjects in the experimental and the control class consisted of 35 students science second grade 5 and 3 Kota Mungkid High School. Collecting data used questionnaires, interview guides, evaluation media product sheets, interest questionnaire sheets, and concept comprehension tests. Quantitative data analysis techniques used independent t-test. The results showed that the learning media viewed from media experts and material experts categorized good. The result of independent t-test significance value is <0,05 and interest learners have increased was categorized as medium, the early learning interest is 65.1 and the final learning interest is 83.7 in treatment class . So it can be concluded that the learning media used is feasible and effective for use in biology learning process to increase interest and conceptual understanding.
Problems in learning biology for senior high schools in Lombok Island
Authors: Hadiprayitno G , Muhlis  , Kusmiyati  
Published: June 2019

Abstract
This survey was aimed to assess the student’s difficulties in senior high school for learning particular topics in Biology and the problems in the learning process. The survey was conducted in senior high school all around the Lombok island by using questionnaire and surveyed 568 students and 24 biology teachers which then analyzed by using qualitative and quantitative statistics. This survey revealed the difficult topics are bacteria and viruses (18.64%), endocrine system (10.63%), cell structure (8.81%), genetics (8.41%), and nervous system (8.28%). The student’s major problems in learning the topics are the use of the scientific name, the complexity of the topics, and the students learning habits. The survey also revealed the teacher’s problems in the teaching process in the planning stage (23.27%), implementation stage (48.63%) and evaluation stage (28.10%).
Misconceptions on Photosynthesis and Plant Respiration Topics Based on Thinking Styles
Authors: Pamungkas M S H , Saputro S , Mulyani S 
Published: June 2019

Abstract
Photosynthesis and plant respiration is an important science concept included in the curriculum in many countries, one of which is Indonesia. This topic is repeatedly taught at different age levels from elementary until tertiary education. Students who have misconceptions will assume that the concept they believe is true, but in reality does not conform to the existing scientific concept. Misconceptions will affect students’ knowledge. This knowledge will then be brought continuously to the next level of education and affect the learning achievement. Students’ thinking styles are one of the factors causing misconceptions. This study aimed to identify misconceptions based on the thinking styles of the seventh grade students about photosynthesis and plant respiration. The method used in this study was survey method. The data were collected by employing Matching Familiar Figure Test (MFFT) and Four Tier Test in three schools with high, medium, and low grades. The result showed that the students with impulsive and slowly imprecise thinking style had a higher percentage of misconception than those with reflective and quickly precise thinking styles. This study can be used as a reference to do remediation of misconceptions to improve the quality of learning.