PENGEMBANGAN AUTOMATIC LESSON PLAN GENERATOR

Penelitian ini berangkat dari permasalahan tingginya kesenjangan antara perencanaan pembelajaran yang disusun oleh guru dengan pelaksanaannya. Tujuan dari penelitian ini adalah mengembangkan Automatic Lesson Plan Generator, yaitu perangkat lunak dalam bentuk prototypeang dapat menyediakan perencanaan pembelajaran yang paling tepat untuk kondisi yang dihadapi oleh guru. Penelitian ini adalah penelitian pengembangan (Research and Development) yang menggunakan metode Plomp. Metode penelitian yang digunakan adalah penelitian kualitatif. Pengumpulan data dilakukan melalui observasi, wawancara dan FGD, kemudian di validasi dengan triangulasi sumber dan teknik. Analisis data dalam penelitian ini menggunakan teknik Miles dan Huberman. Hasil penelitian berupa prototype model Automatic Lesson Plan Generator. Model automatic lesson plan generator dikembangkan dengan memperhatikan karakteristik siswa, bahan ajar, capaian pembelajaran, kondisi fisik kelas, sehingga output dari model ini adalah dapat menghasilkan RPP yang sesuai dengan kebutuhan dan kondisi guru, siswa, dan lingkungan belajar. Berdasarkan hasil analisis data dan mekanisme kerja model automatic lesson plan generator, maka dapat diketahui bahwa model ini memudahkan guru dalam menyusun RPP sekaligus meminimalkan kegagalan realisasi dari RPP yang dibuat. Kegiatan penyaringan dan penilaian metode menjadikan RPP yang disusun sesuai dengan kebutuhan dan kondisi dari guru, siswa, dan lingkungan belajar di mana hal tersebut sering kurang diperhatikan oleh guru. Terdapat 5 langkah kerja dari model automatic lesson plan generator yang dikembangkan, yakni: tahap pengisian data pembelajaran, tahap analisis dan pengelompokan data pembelajaran, tahap penyaringan metode, tahap penilaian metode, dan tahap penyusunan RPP.

Electromechanical Coupling Characteristics Analysis and Research of Rotation-Parallel Flexible Robot Manipulator

RP(Rotation-Parallel) flexible robot as a typical electromechanical system. The complex electromechanical coupling effect in the system has a significant impact on the dynamic characteristics and stability of the flexible manipulator. This article investigates the electromechanical coupling dynamics and vibration response characteristics of flexible robot manipulator driven by AC(Alternating Current) servo motor with considering the start-up dynamic characteristics of the motor. Firstly, the physical model including the coupling of electromagnetic and mechanical system is established, and the dynamic model of the whole system is derived based on the global electromechanical coupling effect and Lagrange-Maxwell equations. Secondly, the virtual simulation platform is constructed with the help of MATLAB/Simulink, and the output speed characteristics of the motor drive end and the motion of the moving base are analyzed. Finally, through the joint simulation of MATLAB/Simulink dynamic simulation model and ADAMS/Controls virtual prototype model, the vibration characteristics of flexible manipulator under electromechanical coupling are obtained. The result demonstrates that the electromechanical coupling effect at the motor driving end has an obvious influence on the dynamic characteristics of the flexible manipulator, which is manifested in the increase of the vibration displacement amplitude of the flexible manipulator. With the increase of motor speed, the change of elastic vibration of flexible manipulator becomes larger, which shows that the electromechanical coupling effect of motor driving end has a greater impact on the dynamic characteristics of flexible manipulator at high speed. The analysis results are of great significance to improve the dynamic performance of motor-driven flexible robot manipulator.

Expanded (Black) Cork for the Development of an Eco-Friendly Surfboard: Environmental Impact and Mechanical Properties

Based on global needs for sustainable development, finding new sustainable materials that can replace oil-based ones for mass products is crucial nowadays. This paper focuses on employing an expanded cork-based composite to produce a surfboard. To evaluate the mechanical properties, uniaxial tensile and compression tests were performed on the skin and core materials, respectively. Bending tests were performed on the entire representative composite structure. Numerical models of the tests were arranged and validated from experimental results. From that, a surfboard prototype model was used to simulate some experimental conditions, permitting us to draw promising conclusions. An actual prototype was also produced. It was found that expanded cork performs very well when sandwiched between wood and polyester resin/glass fibre, being able to hold substantial loads and at the same time reduce weight and the environmental footprint of the composite by 62.8%. It can be concluded that expanded cork is an excellent candidate to replace oil-based foams in surfboard manufacturing. Despite a slight increase in weight, this sustainable material aligns with all the philosophies of surf practice worldwide.

Backstepping sliding mode control strategy of non-contact 6-DOF Lorentz force platform

With the development of aerospace technology, more and more scientific activities are carried out in the universe. Due to the microgravity environment of space, the control of the 6-DOF platform is different from those on the earth. First, a virtual prototype model of the 6-DOF non-contact platform was built in ADAMS. The dynamics model was developed based on the Newton–Euler method. Then, the 6-DOF backstepping sliding mode controller and disturbance observer were designed in MATLAB/Simulink. Finally, by combining the virtual prototype model in ADAMS and the control system in MATLAB, the co-simulation model was proposed. According to the simulation results, the 6-DOF backstepping sliding mode controller can well complete the positioning, 3D trajectory tracking, and vibration isolation tasks of non-contact 6-DOF platform. Quantitatively, the spatial error of backstepping sliding mode controller’s 3D trajectory tracking is only 50% of the ordinary sliding mode control and it is 20% of the nonlinear propotional-derivative-integral.

A Quantitative Study of Waterfall and Agile Methodologies With the Perspective of Project Management

Software engineering is used in order to develop larger and complex software products. As software product is needed in almost all the industries, software engineering becomes really important. Software development can be done through various software development life cycle (SDLC) models like waterfall model, agile model, spiral model, prototype model, etc. SDLC is a framework that defines the tasks that to be performed at each step in the development process. Authors are mainly focusing on two models (i.e., waterfall and agile model). Waterfall model is a serial model which follows a strict sequence. Agile methodology can be divided into scrum methodology and extreme programming. Scrum methodology mainly focuses on how to manage tasks in a team-based environment. Scrum consists of three main roles. They are scrum master, product owner, and scrum team. While comparing both the models, the main difference obtained is waterfall does not allow any customer involvement while agile does allow it.

Design and Implementation of an Intelligent Blade Pitch Control System and Stability Analysis for a Small Darrieus Vertical-Axis Wind Turbine

A few studies have been conducted recently in order to improve the aerodynamic performance of Darrieus vertical-axis wind turbines with straight blades (H-type VAWTs). The blade pitch angle control is proposed to enhance the performance of H-type VAWTs. This paper aims to investigate the performance of an H-type VAWT in terms of its power output and self-starting capability using an intelligent blade pitch control strategy based on a multi-layer perceptron artificial neural network (MLP-ANN) method. The performance of the proposed blade pitch controller is investigated by adding a conventional controller (PID) to the MLP-ANN controller (i.e., a hybrid controller). The dynamics of an H-type VAWT is mathematically modeled in a nonlinear state space for the stability analysis in the sense of Lyapunov. The effectiveness of the proposed pitch control system is validated by building an H-type VAWT prototype model that is extensively tested outdoors under different conditions for both fixed and variable pitch angle configurations. Results demonstrated that the blade-pitching technique enhanced the power output of an H-type VAWT by approximately 22%. The hybrid controller that used a high percentage of the MLP-ANN controller achieved a better control performance by reducing the overshoot of the control response at high rotor speeds.

Development of Prototypes of Exercise Aids (Glow in the dark gate and ball) in an Effort to Increase the Success of Training Programs for Pre-porprov Athletes in Woodball Sports, Klaten Regency

The objectives of the research were to: (1) produce a prototype design of tools in training for beginner and advanced male woodball athletes, (2) test the design of a prototype tool that could be effectively used by athletes to improve skills in training at night, (3) the prototype could used to anticipate training schedule constraints for woodball athletes. The steps used in the development procedure are: (1) Potential and Problems, (2) Develop the initial product, (3) Product Design, (4) Design Validation 2 woodball experts and 2 equipment experts, (4) Design improvement, (5) Product Trial for 6 athletes, and (6) Usage Trial for 10 athletes. The final product is a prototype model of an exercise aid (glow in the dark gate and ball) that can be used for training at night. The results of tool validation from the assessment rubric of woodball experts and equipment experts can answer complaints about the tight schedule of activities for athletes, while the effectiveness of the tool model can help coaches in maximizing training programs with experimental assessments by woodball experts on small-scale trials and large-scale trials getting an average score average after doing the test.

Piezoelectric Configuration for Generating Electricity Using Waves Power

This study is aimed at determining the piezoelectric configuration for generating electricity from wave power through the design of a prototype model named Cov-TOTal. The study was carried out in Tomini Bay, Lopo Village, Batudaa Pantai District, Gorontalo Regency, located at approximately ±50 meters from the shoreline, while the piezoelectric construction was arranged in parallel with varying numbers of 28, 70, and 90 pieces. The result showed that the amount of piezoelectric configuration affects the value of the voltage and electric current generated by the Cov-TOTal model. Furthermore, the average electric voltage values were 17.58, 20.76, and 29.85 volts, while the average current was 1.16, 1.73, and 2.01 mA for each piezoelectric amount. Therefore, the largest values of power and electrical energy for each piezoelectric are 16.65 mW and 0.56 joules, 31.82 mW and 1.20 joules, and 44.59 mW and 1.77 joules, respectively. This study concluded that the amount of piezoelectric configuration has a significant effect on the voltage, current, power, and electrical energy produced.

Development of TRINETRA : A Sensor Based Vision Enhancement System for Obstacle Detection on Railway Tracks

The authors have developed a prototype, which promises easy passage for trains in unknown environments such as zero visibility situations, fog, smog, and heavy rain. The prototype is based upon the integration of a camera, Radio Detection and Ranging (RADAR), and Infrared (IR) Light Amplification by Stimulated Emission of Radiation (LASER).The camera used in the prototype catches a long-range view of the track and presents it live on a mini screen fixed in the loco pilot cabin. A combined short, mid, and long-range radar sensor system is used to detect obstacles continuously in loco pilot blind spots on the track, particularly for collision avoidance assistance at high speed. The present work proposes a long-range laser IR illuminator with a wide range of color and mono cameras to aid clear and precise monitoring in zero visibility conditions, which is fixed on the front portion/engine of the locomotive/engine. The prototype experimental results for 2 m - 2 km distances have been performed on a live running train, which shows that the developed prototype tracks obstacles effectively during fog and smog conditions. The design concept, observation, prototype model, and other technical specifications have been presented, and satisfactory results were found.