Field Operational Test Research Articles

Pengembangan Video Animasi Pola Konfigurasi Objek Untuk Pembelajaran Jarak Jauh

Distant learning in COVID-19 pandemic era impact massively to the increasing number of learning videos in Youtube, unfortunately with inaccurate concept and without stimulus to learn. This research aims to develop an animation video for object configuration pattern which has been validated and practical with accurate concept and giving stimulus for constructivist learning. This research and development research uses ADDIE, with a non-test technique, using questionnaire for validity, practicality, and students’ responses. The operational field testing was done to 18 students of distant learning in the year 2020/2021. The validity showed 87,45% and 97,06% in ‘excellent’ category and received positive responses. It is concluded that the video was proper to be used as a distant learning media.

OPERATIONAL FIELD TESTING BAHAN PEMBELAJARAN GENERASI BARU (Studi pada Matakuliah Geografi dan Pelestarian Lingkungan dalam PIPS Universitas Terbuka)

This study aims to carry out Step Operational Field Testing of New Generation Learning Materials at the Universitas Terbuka (UT) in the Geography and Environmental Preservation Course in PIPS. This research was carried out in Conventional, Blended and Fully Online formats referring to steps 12 – 15 of the R & D model developed by Borg, Walter R. and Gall, Meredith D. (1983) for the macro scale, and the R & D model. according to Borg and Gall (2007) for the micro scale. The results of Step 12 Operational Product Revision are editorial improvements, completing pictures, completing study instructions, improving layouts, improving covers and references. The results of Step 13 Operational Field Testing are that the substance does not change, the addition of sources of learning materials in the form of videos and improvements to the appearance of color forms and illustrations from the cover. The result of Step 14 Final Product Revision is on the research activity of New Generation Learning Materials which is focused on printed/conventional materials as the final product. The result of Step 15 Dissemination and Implementation is that dissemination (without implementation) through national or regional seminars with at least 50 participants and stakeholders has not been carried out because they are waiting for leadership policies.

Medical Drone Managing System for Automated External Defibrillator Delivery Service

One of the common causes of a heart attack is fibrillation, a condition that causes an irregular and often abnormally fast heart rate. There is scientific evidence that the survival rate of sudden cardiac arrest patients who are rescued with cardiopulmonary resuscitation (CPR) and with the use of an automated external defibrillator (AED) is significantly increased. Despite the recommendation that automated external defibrillators should be installed in the workplace, along with a proper management system and training for employees on how to use the device, less than 70% of non-residential areas have an AED installed. The situation is even worse in residential areas, with less than 30% having an AED installed. This research concerns the development of a medical drone managing system that can deliver an AED in case of emergency. An application was developed that can be installed on the mobile phone and/or tablet of the patient or the accompanying person. In the event of a heart attack, the patient or the accompanying person can call a medical drone by sending coordinates to the drone station and a notification to medical staff. The drone station administrator can respond by sending the drone, which automatically lands at the patient’s location. After being tested in a simulation situation, the operational field test yielded satisfactory results. The medical drone can land within 1.5 m of the destination. The designed AED drone can be used not only to deliver AEDs, but also first aid kits and prescribed drugs suitable for medical care. Such a system is especially useful in the current context of the COVID-19 pandemic.

Developing Mathematics Teaching Materials on SPLDV Materials by Combining The Scientific Approach And The RME Approach To Improve Metacognitive Ability and Learning Independence of Junior High School Students

This study aims to develop teaching material in the form of a mathematics learning module on SPLDV material and to improve students' metacognitive abilities and also students' learning independence. This research was conducted in four junior high schools as a place for the initial field test, the main field test, and the operational field test. The indicator of the success of this research is seen from the level of validation given by the validator, namely material experts and media experts of 75%. As for the success of learning, it can be seen from the significance obtained from the statistical test results from the results of the metacognitive ability test and student learning independence questionnaire. The results of this development research showed that: 1) The results of the validation test of the two experts found that the teaching materials developed were in good classification with a percentage of 89.4% for material experts and 83.3% for media experts. This means that the teaching materials meet the classification to good practice and implementation. So it is feasible to use and be tested. 2) At the product trial stage, students' responses to the teaching materials were quite good with a percentage of 81.28% for the initial field trial and 83.01% for the main field test. Student responses to learning using the teaching materials that were developed also had good criteria at the time of operational trials with a percentage of 78%, 3) from the results of statistical tests with a significance level of 0.05, metacognitive abilities, and student learning independence using the developed teaching materials had increased. significant. So that the development of teaching materials can affect the mastery of students' mathematical and affective abilities.

Multistate Pilot Study Evaluating the Short-Term Efficacy of a Smartphone-Based Older Driver Support System on Modifying Risky Driving Behaviors

Older drivers are most at risk of serious and fatal injury in crashes per vehicle mile driven compared with other age groups owing to a combination of cognitive decline and increased fragility. A smartphone coaching application targeting risky driving behaviors (e.g., speeding, hard braking), was iteratively designed to ensure older driver acceptance and usability. A 12-week field operational test examined driving performance of 28 drivers aged 65 to 78 from Kansas and Minnesota using the RoadCoach app and an ABA reversal design. Participants’ baseline driving behaviors were recorded for 3 weeks, followed by a 6-week experimental phase of real-time app coaching, and concluded with a 3-week baseline phase with no feedback provided. Compared with the pretreatment phase, there was a significant reduction in the rates of hard braking and stop sign violations associated with system use. A protection effect was observed through the posttreatment phase. Excessive speeding violations were not significantly different across the phases; however, there were modest declines in the proportion of miles traveled 15 mph above the speed limit in the posttreatment phase compared with the prior two phases. No significant effect was found for excessive acceleration and aggressive turning measures posttreatment, despite an observed increase in both rates during the treatment phase compared with pretreatment. Overall, the results indicate that the RoachCoach app may be an effective intervention to reduce several risky driving behaviors while in use and may result in prolonged behavior changes (i.e., reduced hard braking and stop sign violations) after treatment cessation.

Correction to: Comparison of Proactive Braking Intervention System Acceptability via Field Operation Tests in Different Regions

Correction to: Comparison of Proactive Braking Intervention System Acceptability via Field Operation Tests in Different Regions

Metode Pengembangan Potensi Wirausaha Ekonomi Produktif Di Kabupaten Bima Dan Kota Bima Untuk Mendukung Tahun Pariwisata Provinsi Ntb 2021

The purpose of this study is to encourage an increase in business activity and creativity in community groups in Bima Regency and Bima City, Obtain information related to the economic potential of the region, Obtain information related to various obstacles faced by the community, especially related to the development of productive economic enterprises, Explore information related to local government policies in Bima Regency and Bima City, especially those related to the development of productive economic enterprises. The methodology of this research is a research and development (RD) approach covering ten stages starting from (1) research and information collecting; (2) planning; (3) develop preliminary form of product; (4) preliminary field testing; (5) main product revision; (6) mainfield testing; (7) operational product revision; (8) operational field testing; (9) final product revision; (10) dissemination and implementation. The results of the study show that the Agriculture, Forestry, and Fisheries Sector is still the largest contributor to the economy of Bima Regency. According to BPS data, in 2019 this sector contributed 43.50 percent to the economic posture of Bima Regency and the Bima City Economy was mostly contributed from the trade sector where, in 2019 this sector contributed 25.11 percent to the economic structure of Bima City

Verification of Merging Support Information Provision System (DAY1 System) through Field Operational Test in the Tokyo Waterfront Area

Verification of Merging Support Information Provision System (DAY1 System) through Field Operational Test in the Tokyo Waterfront Area

Analysis of Residents' Awareness in Automated Driving Transportation Service Field Operational Test Sites and Suggestion for Full Scale Deployment

Analysis of Residents' Awareness in Automated Driving Transportation Service Field Operational Test Sites and Suggestion for Full Scale Deployment

Exploring the associations between driving volatility and autonomous vehicle hazardous scenarios: Insights from field operational test data

With the promising development and deployment trends of autonomous vehicles (AVs), AVs’ operation safety has become a key issue worldwide. Studies have been conducted to reveal the risk factors of AV operation safety based upon AV-involved crash reports. However, the crash data sample size was limited and the crash reports only recorded static information, thus it failed to identify crash contributing factors and further provide feedbacks to AV algorithm development. In this study, the risk factors were investigated based upon hazardous scenarios, which were claimed to possess consistent causal mechanisms with crash events. First, contributing factors were extracted from both vehicle kinematics and traffic environment aspects, and their volatility features were obtained. Then, path analysis models were developed to reveal the concurrent relationships between scenario volatility and hazardous scenario occurrence probability. Besides, to understand the varying risk factors for hazardous scenarios caused by human drivers and AVs, a logit regression model was further established. The modeling results showed that large volatility of space headway held direct impacts on increasing the AV driving risks. And the volatility of the drivable road area had no significant impacts on AV driving risks while it indirectly influenced human driving risks. Finally, result implications for AV driving behavior improvements have been discussed.

PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK (LKPD) BERBASIS PROBLEM BASED LEARNING DALAM PEMBELAJARAN MATEMATIKA KELAS IV SEKOLAH DASAR

This study was conducted to determine the development and feasibility of learning media student worksheets (LKPD) based on Problem Based Learning in learning mathematics for grade IV elementary schools. The research method used in this study is research and development (Research and Development) which uses four stages of the Borg and Gall research and development model, namely: 1) research and information collecting, 2) Planning, 3) develop preliminary form a product, 4) preliminary field testing 5) main product revision, 6) main field testing 7) operational product revision 8) operational field testing, 9) final product revision, 10) desimination. The result of this research and development is a problem based learning LKPD product in the fourth grade elementary school mathematics learning. The feasibility level based on the results of the percentage assessment of material experts, learning media experts, and linguists respectively got 90.47%, 82.28%, and 73.3% with the criteria of "very feasible". Furthermore, the response of students to the product when it was tested in the main field testing stage of the LKPD problem based product also did not require improvement and got a percentage of 95.17% with the criteria of "very good". Based on the results of interviews with fourth grade teachers, teachers are interested in using problem-based learning LKPD products in mathematics learning activities in the classroom. Based on this, it can be concluded that problem-based learning LKPD is appropriate to be used as one of the mathematics teaching materials in geometry learning.

Comparing Different Levels of Technical Systems for a Modular Safety Approval—Why the State of the Art Does Not Dispense with System Tests Yet

While systems in the automotive industry have become increasingly complex, the related processes require comprehensive testing to be carried out at lower levels of a system. Nevertheless, the final safety validation is still required to be carried out at the system level by automotive standards like ISO 26262. Using its guidelines for the development of automated vehicles and applying them for field operation tests has been proven to be economically unfeasible. The concept of a modular safety approval provides the opportunity to reduce the testing effort after updates and for a broader set of vehicle variants. In this paper, we present insufficiencies that occur on lower levels of hierarchy compared to the system level. Using a completely new approach, we show that errors arise due to faulty decomposition processes wherein, e.g., functions, test scenarios, risks, or requirements of a system are decomposed to the module level. Thus, we identify three main categories of errors: insufficiently functional architectures, performing the wrong tests, and performing the right tests wrongly. We provide more detailed errors and present examples from the research project UNICARagil. Finally, these findings are taken to define rules for the development and testing of modules to dispense with system tests.

Comparison of Proactive Braking Intervention System Acceptability via Field Operation Tests in Different Regions

To evaluate the generalities of acceptability of a proactive braking intervention system, which anticipates an imaginary pedestrian rushing out from occluded areas, and driving environmental dependencies, we conducted field operation tests (FOTs), where 146 elderly drivers participated at three evaluation sites with different urban characteristics. Analyses regarding the coexisting traffic participants illustrate driving environmental characteristics at each evaluation site. Evaluations via TMT-J, DSQ, and WSQ compare the characteristics of experimental participants. Based on these results as premises, we analyze questionnaire answers regarding the proposed system. As a result, we confirm the generalities that more than half of the participants at each evaluation site expressed a desire to introduce the proposed system into their own vehicle.

The Development of Video on Pickled Fruit Production for Flipped Classroom

Undergraduate students are categorized as Generation Z. They prefer learning using video rather than the book. Demonstration videos are suitable for productive courses because they show step by step of product making. This study aimed to 1) develop a video of pickled fruit production for the Food Preservation Technology course, Universitas Negeri Yogyakarta (UNY), Indonesia and 2) determine the video's feasibility. This study was a research and development (R&D) performed by ten steps, namely information collecting, planning, developing initial products, preliminary field testing, main product revision, main field testing, operational product revision, operational field testing, final product revision, as well as dissemination and implementation. Data analysis was performed descriptively. The video feasibility analysis was conducted by one material expert, one media expert, two teachers, two peer reviewers, four students in one-on-one testing, and 36 students in classroom testing. Based on the feasibility test, the video was declared very feasible as learning media. Text, images, animations, and effects appeared in several parts of the video, making it easier for the students to understand the content. This video can be embedded in the learning management system (LMS) such as Google Classroom, Moodle, and others to facilitate mobile learning, and implemented in a flipped classroom design. Pre-test and post-test were then performed on 29 students in operational field testing. The post-test was significantly higher than the pre-test (p<0.05), so the video was able to improve the students' cognitive skills.

GAME-BASED SOCCER TRAINING MODELS FOR CHILDREN AGED 6-8 YEARS

The purpose of this study was to produce and develop a game-based soccer training model for children aged 6 - 8 years and to test its effect on improving children's basic abilities. This study uses the Research and Development (R&D) method from Borg and Gall with 10 stages; 1) research and information; 2) planning; 3) developing superior product forms; 4) preliminary field testing; 5) major product revisions; 6) main field testing; 7) operational product revisions; 8) operational field testing; 9) final product revision, and 10) dissemination and implementation. The subjects in the small group trial were 12 students of SSB Ina Football Soccer School Ciganjur, South Jakarta, and the subjects in the large group trial were 30 students, each consisting of 15 students of SSB Garuda Muda Batipuah, Tanah Datar, and 15 students of SSB Padang Laweh, Agam. . Whereas in the effective test using the subject as many as 30 students of SSB PS Marapi Batu Palano. The strength test of the game-based football training model for children aged 6 - 8 years using a basic motion test instrument, namely TGMD-2, consists of locomotor and manipulative basic motion tests. Data analysis obtained the mean value of the initial test 19.8 for basic locomotor motion and 7.4 for manipulative, and the final test mean value 34.9 for locomotor basic motion and 10.93 for manipulative. The significance test gets a t-count value of 26.87 for locomotor and 12.89 for manipulative, where each is greater than the t-table value of 1.699 at the 0.05 level so it can be denied that the game-based soccer training model has a positive impact and significant to the improvement of the locomotor and manipulative basic development of children aged 6 - 8 years. So that the conclusion that there are 33 game-based football training models is effective and significant for improving the basic motion of children aged 6 - 8 years and the training model is feasible to use and disseminate.

Analysis of sea ice parameters for the design of an offshore wind farm in the Bohai Sea

Offshore wind power has gained much attention as a clean and renewable source of energy. In cold regions, offshore wind farms (OWFs) face many challenges due to sea ice cover. In response to these challenges, this paper establishes a scheme to evaluate sea ice parameters for the design of wind power projects. We have successfully applied this scheme to the OWF in the Bohai Sea. The scheme is based on data from sea ice satellite images, operational forecasting systems and field tests. The ice period, joint probability distribution function of ice velocity and thickness, and return period (RP) of thickness are investigated. Moreover, we determine the air temperature relationship between the OWF and Laizhou city. Then, the effective ice temperature is calculated for the OWF based on the air temperature. Combining the RPs of ice temperature and thickness, we compute the RPs of bending and compression strengths, which are two key parameters for the ice load design of wind turbine towers. Our scheme is feasible to implement and can provide complete sea ice information for OWFs from the stages of design and construction to operation.

Experimental study on isolated operation of hydro-turbine governing system of Lunzua hydropower station in Zambia

This paper focused on the stable operation and control strategy of the hydro-turbine governing system (HTGS) in an isolated-grid operation mode. The stable operation of a hydropower station in isolated-grid operation mode is important for the safe operation of a power system. A regional power grid can be isolated from a main grid due to factors such as natural disasters, grid failures, and human errors. The Lunzua hydropower station in Zambia is often forced to operate as an isolated grid. To ensure its safe and stable operation, we conducted isolated-grid regulation tests in conjunction with field testing of HTGS and determined the parameters of the HTGS for stable operation of the isolated grid. In the field test, we first set the no-load and initial parameters for the isolated-grid mode through the no-load disturbance tests. Through simulated isolated-grid operation tests, we verified and further tuned the initial parameters. Meanwhile, we propose a control strategy for the transition between large-grid and isolated-grid modes. Through operational tests, we determined the parameters for stable operation in isolated-grid mode. During testing, we found that the water flow inertia time constant Tw was too large and the inertial time constant Ta of the impulsive generator was too small, which resulted in a narrow stability range of proportional–integral–derivative (PID) controller parameters for isolated-grid operation. The governing stability for isolated-grid operation was thus sensitive to the PID parameters. Since the isolated-grid field operation test of the HTGS of the Lunzua hydropower station was completed in August 2016, the generator units have maintained safe and stable operation in large-grid and isolated-grid modes, which validated the isolated-grid operation parameters and control strategy for the transition between large-grid and isolated-grid modes as determined by our test method. The methods of field test and control strategies used for isolated-grid operation have important practical value for the isolated grid operation of hydropower stations.

Evidence for the Crash Avoidance Effectiveness of Intelligent and Connected Vehicle Technologies.

The Intelligent and Connected Vehicle (ICV) is regarded as a high-tech solution to reducing road traffic crashes in many countries across the world. However, it is not clear how effective these technologies are in avoiding crashes. This study sets out to summarize the evidence for the crash avoidance effectiveness of technologies equipped on ICVs. In this study, three common methods for safety benefit evaluation were identified: Field operation test (FOT), safety impact methodology (SIM), and statistical analysis methodology (SAM). The advantages and disadvantages of the three methods are compared. In addition, evidence for the crash avoidance effectiveness of Advanced Driver Assistance Systems (ADAS) and Vehicle-to-Vehicle communication Systems (V2V) are presented in the paper. More specifically, target crash scenarios and the effectiveness of technologies including FCW/AEB, ACC, LDW/LDP, BSD, IMA, and LTA are different. Overall, based on evidence from the literature, technologies on ICVs could significantly reduce the number of crashes.

Canva Application Development for Distance Learning on Arabic Language Learning in MTs Thawalib Tanjung Limau Tanah Datar

This study aims to find out the effectiveness and practicality of Canva applications that can be used online in Video format. The video is developed as a learning medium during distance learning for Arabic language learning. The method used in this study is the R & D (Research and Development) method by following the Borg and Gall models. This research model has ten steps of development, these are: 1) Research and information collection, 2) Planning, 3) Develop a preliminary form of product, 4) Preliminary field testing, 5) Main product revision, 6) Main field testing, 7) Operation product revision, 8) Operational field testing, 9) Final product revision, 10) Dissemination and implementation. This study only comes to the sixth step which at that step focuses only on field trials. The results of the field trials are the results of content verification on audiovisual learning media using the Canva application for distance learning with an average of 4.66 or in an excellent category with a maximum score of 5.00. While the average field test score on students' responses to learning media using the Canva app for distance learning is 3.78 and the maximum score is 5.00.

Precision Control of Spraying Quantity Based on Linear Active Disturbance Rejection Control Method

Current methods to control the spraying quantity present several disadvantages, such as poor precision, a long adjustment time, and serious environmental pollution. In this paper, the flow control valve and the linear active disturbance controller (LADRC) were used to control the spraying quantity. Due to the disturbance characteristics in the spraying pipeline during the actual operation, the total disturbance was observed by a linear extended state observer (LESO). A 12 m commercial boom sprayer was used to carry out practical field operation tests after relevant intelligent transformation. The experimental results showed that the LADRC controller adopted in this paper can significantly suppress the disturbance in practical operation under three different operating speeds. Compared with the traditional proportional–integral–differential controller (PID) and an improved PID controller, the response speed of the proposed controller improved by approximately 3~5 s, and the steady-state error accuracy improved by approximately 2~9%.