จำนวน Repository ( 2131 )
การวิเคราะห์แรงดันไฟฟ้าตกในแบบจำลองระบบจำหน่ายไฟฟ้า
Voltage drop is one of the power quality problems affecting power users. This happens due to the higher demand for electric power. Or a short circuit in the transmission system. This causes a voltage drop is one of the power quality problems affecting power users. This happens due to the higher demand for electric power. Or a short circuit in the transmission system. This results in drop in Solving of voltage drop problems in power distribution model with distributed generator were presented with MATLAB program by installing a generator in the distribution system. Therefore simulated a case study 5 case 1 simulation by not installing a generator at any bus case 2 simulation by installing a Generator at bus 1 case 3 Simulation by installing a Generator at bus 18 case 4 simulation by Generator installed at bus 33 and case 5 simulation by Generator installed at bus 13 17 21 31 to study the suitable location of generator installation to solve the problem of voltage drop.
การประยุกต์ใช้เทคโนโลยีเพื่อศึกษาและพัฒนาระบบลงเวลาออนไลน์
The system of recording time in - out through the online system will help facilitate those who enter - leave the agency. That can record the time to attend activities anywhere and help people work easier by bringing information from a central database to connect with users. Nowadays the way of work has begun to go into a digital format that only requires fast accurate and convenient data linking. Entering or importing more than necessary data will result in delays. Authentication when entering and exiting an agency is useful in identifying identity and location by storing it as a database for further analysis. Therefore this research presents the application of technology to study and develop an online time attendance system. instead of scanning this hand clock machine and signing of time stamps
ภูมิคุ้มกันหมู่กับการฉีดวัคซีน: การวิเคราะห์ความสัมพันธ์โดยใช้ทฤษฎีกราฟ
Analysis of the connection between herd immunity and vaccination uses a model for spreading infectious diseases with injections vaccines in three forms. The results were analyzed using complete graph to determine the relationship of group immunity to vaccination under the three forms hypothesis of vaccinations against the spread of infectious diseases and drawing a graph from Gephi program. The results showed that herd immunity was directly related to the number of people vaccinated. If the number of people vaccinated is high herd immunity will occur. But if the number of people vaccinated is low herd immunity will be difficult.
นวัตกรรมสารสกัดน้ำมันกระเทียมบนกระดาษชั้นในเครื่องกรอง PM2.5 ในการกำจัดมลพิษจุลินทรีย์ปนเปื้อนในอากาศ เพื่อก้าวผ่านสถานการณ์ COVID-19
Garlic is an ancient food and medicinal plant that has been used for centuries. The research team was interested in creating a garlic oil extract that could help reduce microbial contamination in the air during the prolonged period of the COVID-19 situation. A prototype sugarcane leaf paper filter was treated with garlic oil extract to improve its air purification properties and to reduce the number of microorganisms. This study investigated garlic oil extracts that were produced by a garlic fermentation process with isolated lactic acid bacteria. The oil was then extracted using steam distillation or maceration with 80% ethyl alcohol. Both these methods demonstrated that they were effective in inhibiting pathogenic microorganisms contaminating isolated from air (Fungi: Penicillium sp. Aspergillus spp. and Rhizopus sp. and Bacteria: E. coil Bacillus subtilis and Staphylococcus sp.) by Agar Diffusion method. It was found that the garlic oil extract distilled from steam was the best choice for further development as a coating for filter paper. Garlic oil extract can be stored at room temperature for at least 15 days after being coated on filter papers. After that the filters with garlic extract-coated filters made by sewing together four folded filter papers could remove the dust of 2.5 sizes as well as HEPA filters but had a disadvantage in filtering dust that was at least 10 PPM. This paper filter prototype was environmentally friendly because it could decompose on the ground within 12-15 days and reduce the spread of infection problems. From overall the prototype of the garlic oil extraction process can be developed at a commercial industrial level to produce large quantities of garlic extract with desired quality tracking features. It helps reducing environmental problems in a sustainable way; reducing waste conserving energy and using environmentally friendly materials.
การแสดงข้อมูลเชิงโต้ตอบสำหรับข้อมูลวัดไทยในสถานการณ์โควิด 19
Data visualization technology is going to grow in importance in the short term. This technology is a concept that describes any effort to help people understand the significance of data by placing it in a visual context. Patterns trends and correlations that may go unnoticed in text-based data can be more easily exposed and recognized data visualization software. The purpose of this research is to develop the interactive dashboard of Thai temple data in Nonthaburi province and finding out the users’ satisfaction with the dashboard. The tools used in the research were Data Studio software online questionnaires mean and standard deviation statistics. The results of the overall satisfaction evaluated by participants of 100 users who were people living in Nonthaburi province is at the highest level at a mean of 3.80. Therefore the results of this research can be applied to any Office of Buddhism that face with similar issues of data analytics