bluuebunny/crossref_metadata_2025_split huggingface dataset:
Students’ Applying STEM Knowledge in Learning on the STS-STEM Education Wave Learning Unit
Authors: Tupsai Jiraporn , Bunprom Somsak , Saysang Janjira , Yuenyong Chokchai 
Published: October 2019

Abstract
This study aims to explore Grade 11 activity of student on Science Technology Engineering Mathematics (STEM) with the integration of learning about wave based on Science Technology Society (STS) approach [8]. The participants were 50 students in Demonstration Secondary School, Khon Kaen University, Khon Kaen Province, Thailand. The methodology is in the respect of interpretive paradigm. The teaching and learning about wave through STS approach carried out over 5 weeks. The Wave unit through STS approach was developed based on framework that consists of five stages including (1) identification of social issues, (2) identification of potential solutions, (3) need for knowledge, (4) decision making, and (5) socialization stage. To start with, the question “How to change wave energy to electricity” was challenged in the class in order to improve students to find the problem of how to design wave energy to electricity from Clean Energy form force wave. Students were accepted to apply scientific and other knowledge to design of wave energy to electricity. Activity of students on STEM were collected during their learning by participant’ observation and students’ tasks. Them did on STEM were classified when they applied their knowledge for designing the wave energy to electricity. The findings indicated that students cooperatively work to solve the problem when applying knowledge about the content of Science and Mathematics and processing skill of Technology and Engineering. It showed activity that students held the integration of science, technology, engineering and mathematics to design their possible solutions in learning about wave energy to electricity. The paper also discusses implications for science teaching and learning through STS in Thailand.
Development of webquest using Google Site in teaching Circulatory System
Authors: Agad Lea May L. , Pitonang Daryl Jean A. , Terrado Tyra Faye , Salic-Hairulla Monera A. , Gomez Rizalina G. , Nabua Edna B. , Yuenyong Chokchai 
Published: October 2019

Abstract
This study aimed to develop a webquest in teaching circulatory system using Google site for Grade VI pupils. The developed webquest was an instructional material designed to enhance pupil’s performance in engaging learning activities especially in science lessons based from the K-12 Science Curriculum. The developed webquest was evaluated and rated Excellent by the ICT Experts, In-Service Teachers and Pre-Service Teachers. The comments and suggestions were used to improve the developed webquest. The researchers also made use of the Flesh-Kencaid Readablity Test to determine the readability of the developed webquest and the results revealed that it is appropriate for Grade VI pupils.
Implementation of Webquest in teaching Circulatory System
Authors: Salic-Hairulla Monera A. , Agad Lea May L. , Pitonang Daryl Jean A. , Terrado Tyra Faye , Yuenyong Chokchai 
Published: October 2019

Abstract
This study aimed to determine the performance of the respondents in using the developed Webquest in the Google site. The study used the quasi-experimental design method making use of pretest-posttest design. The result of the study showed that there was a significant improvement in the respondents’ conceptual understanding in the concept of Circulatory System. The respondents exposed to the developed webquest had significant high test scores in the post-test as compared to the pre-test. The developed instruction was implemented to 30 Grade 6 Elementary pupils and another 30 pupils for traditional lecture method from selected public schools who were enrolled during the SY 2016 - 2017. Moreover, the result also showed that there is a significant difference between the post test scores of control group and experimental group. Result implies that the developed Webquest has a positive impact in teaching Circulatory System.
Meta-analytic review of studies on the effectiveness of chemistry teaching methods on student transformation
Authors: Sugano Shalom Grace C. , Nabua Edna B. , Barquilla Manuel B. , Buan Amelia T. , Inutan Ellen N. 
Published: October 2019

Abstract
In the hope to provide life-long and quality learning in chemistry education in the Philippines, quality of instruction must be guaranteed first. This calls for exploration and utilization of teaching methods that effectively promote student growth and learning success. In an effort to this, this study utilized the quantitative meta-analysis technique to integrate chemistry research findings that were conducted only in the Philippines covering the period 2005-2016. It aimed to investigate the effectiveness of teaching methodologies in secondary chemistry and their effects on student transformation consisting academic performance and student characteristics. A search procedure and broad literature review were executed in order to identify the potential and qualified chemistry studies from published and unpublished graduate theses, dissertations and journal articles. Meta-analysis was effectively and systematically carried out through study acquisition, study coding, determination of interrater reliability, establishing inclusion criteria, computation of effect size including mean and interpretation of analyses. The meta-analytic review revealed that during the last decade (2005-2016), nine different teaching methods have been implemented and evaluated in chemistry classrooms. It has been determined that incorporation of innovative methods significantly promote positive transformation of students as a whole in secondary chemistry. Moreover, findings provide evidence supporting that academic performance, attitude and motivation can be greatly enhanced if students are placed in an environment in which they can actively connect chemistry instruction to previously learned scientific and chemical concepts and materials through constructivist (inquiry-based and problem-based) and collaborative learning method. The main implication of this research is that it generated empirical evidence supporting the effectiveness of innovative instruction in chemistry.
Grade 11 student’s mental model of the Nature of Light
Authors: Chanserm Tevarit , Tupsai Jiraporn , Yuenyong Chokchai 
Published: October 2019

Abstract
This study aims to explore Grade 11 Student’s Mental model of the Nature of Light with the integration of learning about light. The participants were 50 students in Ban Tha Muang School, Buriram, Thailand, Province Thailand. The methodology is in the respect of interpretive paradigm by opened question about Nature of light and interview. The results were student could to explain primary light sources more than secondary light sources because they could students easily find primary light sources in everyday life. Student could to model of understanding mental model about moving light. They could to explain light travels straight out of the light source and travel because its intermediaries because light was electric wave including understanding Mental Model. They could to draw and explain light travels straight from the sun through the vacuum and the atmosphere of the earth and there are some students who paint a wave of light by drawing a wave like a wave in a rope. They could to explain mental model of visibility as see with our eyes, however, there are only some students who associate the impact and reflection to explain the vision. This paper also discusses teaching science about the student’s mental model of Nature of Light in physics as a guideline for those who are involved in the development of learning, focusing on learners who learn to light.
A new approach for comparability of two- and three-bladed 20 MW offshore wind turbines
Authors: Anstock Fabian , Schütt Marcel , Schorbach Vera 
Published: October 2019

Abstract
Wind energy plants are subject to a vast optimization process with a multitude of design parameters. While one specific three-bladed turbine type dominates the on- and offshore market, two-bladed turbines offer promising, but not yet quantified, potentials for cost savings during manufacturing, erection, and maintenance, offshore. Nevertheless, the comparability of two- and three-bladed turbines is challenging, causing an ongoing discussion within research and industry about which alternative to prefer. A new approach could be to reduce the important changes made by maintaining the exact same energy yield. This results in an increase of design changes of the two-bladed rotor, due to slightly (about 2%) longer blades to counterbalance the inevitable losses of aerodynamic efficiency. Nevertheless, it has the great advantage that subsequent comparisons of loads, masses and costs do not have to be associated with a loss of power. This could serve as a solid basis to allow drawing conclusions and considering differences in dynamical loads, masses and costs more directly and hopefully more expediently, when comparing two- and three-bladed wind turbines.
Heuristics-based design and optimization of offshore wind farms collection systems
Authors: Peréz-Rúa Juan-Andrés , Minguijón Daniel Hermosilla , Das Kaushik , Cutululis Nicolaos A. 
Published: October 2019

Abstract
A parallel-based algorithmic framework for automated design of Offshore Wind Farms (OWF) collection systems is proposed in this paper. The framework consists basically on five algorithms executed simultaneously and independently, followed by a combined analysis aiming to generate the best results in terms of different objective functions. The main inputs of the framework are the location coordinates of the Wind Turbines (WT) and the Offshore Substation (OSS), wind power production time series, and the set cables considered for the collection system design. Four heuristics and one metaheuristic algorithm are considered. The heuristics are based on modified versions of well-known graph-theory algorithms: Kruskal (KR), Prim (PR), Esau-Williams (EW), and Vogel’s Approximation Method (VAM); all of them coded in a unified framework with quartic time complexity. The metaheuristic is built upon a Genetic Algorithm (GA) designed using a hierarchical-restricted penalization system. Comparisons between all of these methods are performed from different perspectives, taking into consideration the particular constraints treated for OWF practical applications. In general, primals from heuristics lead to faster and better results when only a single cable is available, and provide collection systems with lower electrical power losses for multiple cables choice, whilst the GA shows better results when the initial investment is prioritized and several cable types are considered.
Hydrodynamic characteristics of the modified V-shaped Semi-floating offshore wind turbine with heave plates
Authors: Shi Wei , Zhang Lixian , You Jikun , Karimirad Madjid , Michailides Constantine 
Published: October 2019

Abstract
In recent years, there is a great need to develop offshore wind energy on a global scale due to the greenhouse effect and energy crisis. Great efforts have been devoted to developing a reliable floating offshore wind energy technology to take advantage of the large amount of wind energy resources that exist in deep water. In this paper, a novel concept of a floating offshore wind turbine (FOWT), namely, the modified V-shaped semi-floating with heave plate, is proposed, and its hydrodynamic characteristics are studied. A numerical model based on ANSYS/AQWA is used to investigate the dynamic motion, response characteristics and mooring performance of the new concept. Moreover, the response amplitude operators (RAOs) of the different response quantities are also elaborated. A comparative study of the dynamic response of the different response quantities of the modified V-shape and original V-shaped semi-floating is carried out for operational environmental conditions. It is found that the modified V-shape semi-floating shows relatively better performance in platform motion and mooring line response.
A tool to simulate decommissioning offshore wind farms
Authors: McAuliffe F Devoy , Desmond C , Chester R , Flannery B , Judge F , Lynch K , Murphy J 
Published: October 2019

Abstract
Decommissioning is an emerging practice for the offshore wind industry. To date, the Yttre Stengrund and Vindeby Offshore Wind Farms are the only installations to have been fully dismantled. While every project requires a decommissioning plan to gain consent; they are high-level estimates of the expected strategy, time required and costs. This is due to the lack of reliable data or experience. However; if underestimated, decommissioning may result in significant and unexpected outgoings at the end of a farm lifecycle. Simulation is an effective way to test a plan is both executable and cost-effective, as well as optimising activities for an individual site. Therefore, a stochastic tool was developed to simulate a wide range of decommissioning methods, considering the impact of uncertain factors such as weather and costs on time and expenditure. It is the first detailed simulation model developed for this crucial project phase. This paper describes the scope of the model; documents the validation activities undertaken; and demonstrates the model’s capabilities. It was found that while further validation against real-case scenarios is necessary, the model can indicatively forecast costs and time for a given strategy as well as optimise scenarios and mitigate risks.
Improving Community Services and Infrastructure in Remote Areas by utilizing Community Need Assessment (CNA) Approach. (Case Study: Kampung in Mahakam Ulu Regency)
Authors: Vidianti R A , Istiqomah R N , Hidayat A R T 
Published: October 2019

Abstract
The remote area is defined as a remote (rural / settlement) location within an area One of the remote area locations is Mahakam Ulu Regency. One of the problems faced in remote areas locations selected by researchers is the availability of commnunity services and infrastructure. This research explores the condition of commnunity services and infrastructure in the Kampung Lutan, Long Hurai and Muara Ratah which are being the priority villages in the Mahakam Ulu Regency. Exploration results are expected to provide input for determining the needs and hopes of village commnunity services and infrastructure by involving community participation. Community Need assessment (CNA) approach was applied in this study involving process of collecting, analyzing and reporting information about community needs and the amount of capacity or strength that exists in the community to fulfill those needs. By understanding the needs and hopes of village community service and infrastructure, it can facilitate the government in establishing the priorities of village development to observe the social aspects of the community. CNA analysis addressing a number of facilities and infrastructures in the three villages tended not to require additional units, but to improve the quality of the commnunity services and infrastructure.
Spatial Pattern of Land Cover Change in The Coastal Area of Gresik Regency, Indonesia Using Land Change Modeler
Authors: Hasyim A W , Sianturi R E P , Hidayat Ar R T 
Published: October 2019

Abstract
Industrial activities could cause multiplier effects; one of them is increasing other supporting activities such as housing, trade and services, and transportation. The rapid growth of the industrial sector in Gresik Regency and the existence of the Java Integrated Industrial Port Estate (JIIPE) can trigger new activities, that could led the change in land use and land cover. This study aims to observe the patterns of land cover change before and after the implementation of the regional spatial plans (RTRW) from 2002 to 2012. The results indicated that, in 2002 to 2007 there was an increase in built-up area by 6016 ha while green open space and empty land decreased by 6416 ha. The implementation of the shifts towards the border areas has no longer occurred in urban areas.
Urban Population Growth and Their Implication to Agricultural Land in the Process of Metropolitanization: The case of Kabupaten Sukoharjo, in Metropolitan Surakarta
Authors: Mardiansjah F H , Sugiri A , Sari G P 
Published: October 2019

Abstract
Extended urban spatial formation has been a major phenomena in many cities’ development, in Indonesia, including big, medium and smaller size of cities. Using the case which occurred in the Kabupaten Sukoharjo, an adjacent kabupaten of the City of Surakarta, this paper discusses the process of population growth, land expansion and their impact on the agricultural land outside the city’s perimeter, in the metropolitanization process of Surakarta as a secondary metropolitan growth in Java based on a medium city size as the core of the metropolitan. The analysis applies time-serial statistical data gathered from the kabupaten’s monographs. It also applies comparative analysis among the kecamatan (districts) in the kabupaten that are classified into two types of kecamatan: the adjacent and the non-adjacent. The analysis indicates a dramatic changing of urban land, which confirmed the impact of uncontrolled urbanization into agricultural land in the peripheries in terms of losing of fertile agricultural land. It also indicates that the process leads to the needs to develop other agricultural land to substitute the loss of fertile agricultural land. Therefore, the analysis indicates the double impacts of metropolitanization process into agricultural land, such as: the loss of fertile agricultural land in its peri-urban and the implication of efforts in producing fertile land in other areas.
Milk Production Curve on Various Test Day Patterns (Case in BBPTU-HPT Baturraden)
Authors: Indrijani H , Anang A , Tasripin D , Salman L B 
Published: October 2019

Abstract
Information about milk production in dairy cows is obtained most accurately by daily recording, but with consideration, such as time and cost. This study aimed to obtain accurate and efficient recording patterns to estimate milk production in dairy cows. This research used recording of milk production in BBPTU-HPT Baturraden. The data used is the record of milk production of Test Day (TD) from the year 2014-2017 as many as 8696 records of TD that derived from 213 head of cows on first lactation. The record of TD milk production is the recording of milk production performed only on certain days during a lactation period. The milk production expectant curve used is the Ali-Schaeffer. The result of this research that Ali-Schaeffer equation with correlation between estimated and actual value (r) 0.991, standard error (se) 0.64, and standard deviation (stdv) 0,01. Recording of milk production Pattern 5, namely the recording of milk production in TD 1, 2, 5, 8, and 11, showed the highest correlation value (r=0.998). It is recommended to record the milk production in the early months of lactation and combined with the recording of TD milk production periodically every three months, from mid to late production.
Correlation Between Fruit Characters with Capsaicin Content in F2 Population of Chili
Authors: Yenny R F , Rostini N , Hersanti  , Anas  
Published: October 2019

Abstract
Chili is one of the most important vegetable spice crop valued for its aroma, flavor, and pungency for Indonesian food. An experiment on chili (Capsicum annuum L) was undertaken to study the genetic correlation and relationship of morphological and fruit characters on capsaicin content using path analysis. The F2 population was developed from the cross between the high capsaicin content of cayenne pepper CF02 inbred line and curly chili K15 inbred line. Capsaicin content was negatively associated with fruit surface, fruit length, fruit diameter, fruit weight, and fruit weight per plant. Based on path analysis, these characters had direct effect and indirect effect on capsaicin content. Direct selection may be executed considering these traits as the primary selection criteria to reduce the indirect effect of other characters during the development of high yielding chili variety.
The Effect of Liquid Organic Fertilizer of Vegetable Waste and Planting Media on Growth and Yield of Strawberry (Fragaria spp.) Earlibrite Cultivar
Authors: Ginandjar S , Frasetya B , Nugraha W , Subandi M 
Published: October 2019

Abstract
Strawberry becomes one of the popular plants in agro-tourism by combining strawberry plantation with culinary tourism. Increasing growth and yield of strawberry plant can be achieved by applying liquid organic fertilizer (LOF) of vegetable waste and planting media. This research was conducted to study interaction between LOF and planting medium (PM) and to inquire about the best dosage of LOF and planting medium for the growth and yield of strawberry. This research was conducted in the sub-district of Cibiru, Bandung City, West Java. The research design was Randomized Block Design with two factors and three replications. The first factor was vegetable waste of LOF with four treatments level respectively: p0: without LOF application, p1:250 ml, p2: 500 ml, and p3: 750 ml. The second factor was planting media with three treatments level respectively : m0: without husk charcoal, m1: (1:1) soil and husk charcoal, m2: (1:2) soil and husk charcoal. The research finding came up by the existence of interaction in leaf width with the highest number by 835.42 cm2 in combination of p2m2 treatment.
Performance of Rice Production and Pest in Riau Province
Authors: Rustam  
Published: October 2019

AbstractProduction of rice plants is affected by pest attacks. This study aimed to (i) analyze the trend of rice production and pest in Riau Province over the past 10 years, (ii) to predict the trend of pests and rice production of Riau Province for the next 5 years, and (iii) to formulate policy alternatives in order to increase rice production and pest attack control in Riau Province. Secondary data covering production data and paddy pests were obtained from related institutions. For validation and completion of some secondary data, the primary data was collected from direct observation and various competent sources. The data were analyzed in tabulative, regression and simple descriptive to answer the research objectives. The results showed that there has been a decline in rice production in Riau Province for the last 5 years was quite high (23.0%). The decline in production is mainly due to a decrease in harvested area. The decline in production is also caused by pest attacks. The type and extent of rice pest attack show a fluctuating trend. There are 8 types of pests causing rice crop failure (puso), namely bird, rice bug, golden apple snail, stem borer, brown spot disease, blast, and bacteria leaf blight. The total area of rice pests attack by category of puso 161.4 ha. In the next 5 years, Riau rice production is predicted to increase every year while pest attack will decrease every year. Rice production can be increased through increasing harvested area, reducing land conversion, water availability. While pest attack can be suppressed through the use of resistant varieties, early detection, simultaneous control, and intensify counseling.