http://repository.rmutp.ac.th/handle/123456789/132 2026-04-04T21:08:59Z http://repository.rmutp.ac.th/handle/123456789/3767 Development of educational media in astronomy using augmented reality technology Lalie, Yanee; ญาณี ละลิ่ว; Janbunna, Thanyarat; ธัญญารัตน์ จันทร์บุญณะ; Meesap, Piyawatt; ปิยะวัฒน์ มีทรัพย์ At present, augmented reality (AR) technology has an essential role in people's daily life. It has widely established in medicine, commerce, education, just to name a few. This work presents the development of educational media in astronomy using augmented reality (AR) technology via website. It supports an inquiry-based learning (IBL), which is the one of pedagogy approaches for the 21st century education. Applying AR in educational media, creating a 3D astronomy environment in the topic of solar systems, making learners more motivated and eager in astronomy inquiry in order to construct scientific knowledge. Furthermore, a post-test is conducted to observe the learning outcome from the educational media. To evaluate the development of educational media in astronomy using augmented reality (AR) technology, the results showed the overall average satisfaction score of the system was 4.63 with a very satisfied level. Moreover, it performs properly according to its mentioned objectives. โครงงานพิเศษ (วท.บ.) -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2562 2022-03-04T00:00:00Z http://repository.rmutp.ac.th/handle/123456789/3766 Wastewater treatment of textile dyes by ozonation process and plastic media coated with rutile tiO2 as a catalyst Wayupha, Peerawit; พีรวิชญ์ วายุพา; Janthacherd, Jirapat; จิรภัทร จันทเชิด; Chaisong, Kiettisat; เกียรติศักดิ์ ชัยสงค์ This research is to study the efficiency of treating wastewater from dyeing fabric by the ozonation process. By using rutile TiO2 coated plastic media to catalyze. Which uses O3 generators with a capacity of 2.62 - 3.10 g/hr. By studying the factors that affect the treatment efficiency of COD and color, such as the pH of the water used in the treatment at pH 3, pH 7 and pH 11, the initial COD concentration of 100%, 50% and 25% which have values in the range of 100 -320 mg/L. O3 exposure time 120 min. From the study, it is found that the efficiency of reducing the impurities in wastewater by the ozonation process in the pH 11 state, the COD concentration at 50%, can reduce the COD. And the maximum color is at 33.3% and 90% from the 550 ADMI color intensity, with a COD of 180 mg/L. For the study of the efficiency of reducing the impurities of wastewater by ozonation process together with 2 g. of TiO2/1 L. of wastewater in the condition of pH 11, concentration COD Beginning at 100%, with the ability to reduce COD values And the maximum color is at 40% and 80% of the 270 ADMI color intensity, with a COD of 190 mg/L. The amount of O3 suitable for treatment has an average value of 0.0374 g/min./10.5 L. of wastewater. The duration of O3 exposure in both processes has a similar approach to the efficiency of COD and color treatment when increasing the duration of O3 exposure. โครงงานพิเศษ (วท.บ.) -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2562 2022-03-04T00:00:00Z http://repository.rmutp.ac.th/handle/123456789/3765 Improvement in ferroelectric properties of 0.93(Bi0.5-x/0.93Smx/0.93Na0.5) TiO3-0.07BaTiO3 for energy storage Imkheaw, Thanapohm; ธนาภรณ์ อิ่มเขียว; Munsamook, Luksana; ลักษณา มันสามุข In this study, we investigated the effects of Sm2O3 addition in ceramics 0.93(Bi0.5- x/0 . 9 3Smx/0 . 9 3Na0 . 5 ) TiO3 - 0 . 0 7 BaTiO3 by mixing solid oxide solutions. The crystalline properties of the X-ray diffraction and ferroelectric properties were studied from the P - E loop. The physical properties showed that BSNT-BT ceramic density increased and the percentage of shrinkage decreased due to the increase of the amount of Sm2O3. Moreover, it was found that the results were consistent with the structural study for sintered samples at a temperature of 950 °C for 7 hours. It can be determined that the BSNT-BT ceramics have a perovskite structure, which is like the main structure of ceramic type BNT. Dielectric properties and dielectric losses at room temperature showed that when increasing the amount of Sm2O3 in BSNT-BT ceramics, the dielectric and low dielectric loss were consistent with reduced material resistance. Further, the ferroelectric test found that BSNT-BT ceramics improved the ferroelectric properties when increasing the amount of Sm2O3 in the BSNT-BT ceramics. โครงงานพิเศษ (วท.บ.) -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2562 2022-03-04T00:00:00Z http://repository.rmutp.ac.th/handle/123456789/3764 Treatment of fabric dye by advance oxidation using ozone with hydrogen peroxide Suksumboon, Khaunta; ขวัญตา สุขสมบุญ; Apirom, Sirinan; ศิรินันท์ อภิรมย์; Tongamiphai, Nounjuta; ณวลจุฑา ทองอำไพ This research is a study on treatment of Water Dyes from textile dyeing industry by Advance oxidation process with Ozone and hydrogen peroxide (H2O2). In this study, Ozone generators with a capacity of 1.0 - 3.0 mg/ hr. were used to study the appropriate factors for treatment with adjusting wastewater conditions (pH 3, pH 7 and pH 11), Ozone exposure distance 120 minute, the initial COD concentration is 250 - 1,000 mg/l. and adding hydrogen peroxide at 4, 8 and 12 ml/l. For the study found that above mentioned factors have an effect on the efficacy of color and COD treatment which the experiment at pH 11 used to Ozone treatment and added 4 ml/l. of H2O2. It makes the highest COD treatment efficiency when compared to pH 3, pH 7 and added more H2O2. it doesn’t affect to the higher of treatment efficiency. In addition, it was found that higher initial COD concentration decreased treatment efficiency which the experimental ability for COD treatment has highest value was 46 percent and the COD concentration was 250 ml/l In order that, when COD concentration in synthetic color water was increased to 500 ml/l and 1,000 ml/l. it was found that the COD efficiency decreased to 31% and 40% respectively. For the treatment of Water Dyes from textile dyeing industry by oxidation process with Ozone together with hydrogen peroxide (H2O2) at pH 7 will has the highest of treatment efficiency. However, the consideration of suitability for pH configuration used to treat both color and COD should choose pH 11 because it can treat both color and COD that makes the waste water quality meet the standards required by law. In addition, if we consider the effectiveness of turbidity and BOD found that the decrease of dirtiness tends to be in the same direction with COD both 2 parameters. โครงงานพิเศษ (วท.บ.) -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2562 2022-03-04T00:00:00Z