จำนวน Repository ( 1174 )
ความสัมพันธ์ของการกระจายตัวของสารป้องกันกำจัดศัตรูพืชตกค้างในดินเพาะปลูกข้าวและระดับการปนเปื้อนในเมล็ดข้าว
The effect of pesticides on farmers and the distribution of residual pesticides in rice plants and rice grain was studied in rice farming area covered in Samchuk district Suphanburi province. The situation and health effects related to pesticides was conducted using an individual interview and filled-form questionnaire with 126 samples. The participants were male of 68.3% and female of 31.7%. Educational level of participants was to be 36.5% and 24.6% for primary and elementary levels respectively. One-third of farmers (33.3%) reported a monthly income in the range of 5000 to 10000 Baht. A quarter of farmers (25.4%) got higher a monthly income with 10001 to 15000 Baht. Family members was found to be 4 persons (54%) 5 persons (19.8%) and over 5 persons (11.1%). All participants concerned the behavior and perception related pesticides for their highly toxicities and extremely dangerously death. A half of herbicide (50%) was glyphosate. Seriously paraquat (commercial name of Gramoxone) was found to be 22%. On the other hand the most of insecticide (55%) was an abamectin and carbofuran (commercial name of Furadan) was found to be 15%. A 20 samples of rice plants and rice grain was collected by random sampling. The residual carbofuran and glyphosate in rice plants and rice grain was determined using standard method. It was found that carbofuran was found in the range of ND-0.05 μg/kg and ND-0.08 μg/kg for rice plants and rice grain respectively. Glyphosate was found in the range of ND-0.26 μg/ kg and ND– 0 . 2 2 μg/ kg for rice plants and rice grain respectively. The residual levels of carbofuran and glyphosate in rice plants and rice grain depended on a spray period time their decomposition and the concentration of carbofuran and glyphosate. The residual levels of carbofuran and glyphosate did not significantly quantitative correlation between rice plants and rice grain.
ศาสตร์พระราชากับการพัฒนาสถานศึกษาระดับอุดมศึกษา
The article “King’s wisdom for the development in higher education Institution” aims to follow in the footsteps of the King Bhumipol Aduyadej Rama 9 and to be grateful for the mother land the application the King’s wisdom to be framework for the development in higher education plan in accordance with the 15 years long-term plan N๐. 2 (BE 2551-2565) and the National Economic and Social Development Plan N๐. 12 (BE 2560-2564) which adheres to the guideline “philosophy of sufficiency economy.” The results of the analysis of the King’s wisdom in accordance with the framework of the Higher Education Development Plan and the National Economic and Social development Plan for the development of four main missions: men working goals and organization. Summary King’s wisdom is a science of development that can be develop in every area perfectly in science technology research and innovation by focusing on people as the center with developing people to have knowledge skill social responsibility with ethics and morality to be a perfect person in order to be ready to live in a modern world and world trend which being aware of moderation reasoning and having good self-immunity and not abandoning the cultivation of morality as well as being able to live happily and living together in peace.
แอปพลิเคชันแชทบอทเพื่อการส่งเสริมการท่องเที่ยวเชิงเกษตรและวัฒนธรรม
The Chabot application aims to promote Ecotourism in Bang Phae District Ratchaburi. The application has been developed by modern information technologies such as Artificial Intelligence (AI) and Natural Language Processing (NLP) via Dialogflow program and LINE application. The application consists of three main components: User interface Entities and Fulfillment engine and Intent. A usability test was conducted to evaluate the user experience in terms of effectiveness efficiency and satisfaction with which participants perform tasks when using the application. Consequently the participants were asked to complete the survey. The result shows that the overall user satisfaction score remains high (x̅ = 3.80). However the ability to communicate effectively scored lowest (x̅ = 3.66)
การศึกษาเชิงเปรียบเทียบระหว่างโรงไฟฟ้าโออาร์ซีแบบซับคริติคัลโรงไฟฟ้าโออาร์ซีแบบซุปเปอร์คริติคัล และโรงไฟฟ้าแรงคินไซเคิลแบบไตรแลทเตอรัลสำหรับแหล่งความร้อนที่อุณหภูมิ 210-250 องศาเซลเซียส
The performance investigations of subcritical ORC supercritical ORC and trilateral Rankine cycle (TLC) power plants with the heat source temperatures of 210-250°C were conducted and compared in this study. Several working fluids were evaluated. A MATLAB code was developed and used in this study. The thermodynamic properties of the working fluids were calculated by using NIST REFPROP program. The justification of the code was validated with a result taken from the literature. The optimal operating conditions were searched using the golden-section technique. The maximum net output power of 141.72 kW was obtained when using the supercritical ORC plant with R141b as its working fluid and the heat source temperature was at 250°C. The corresponding cycle efficiency was 16.25%. When using the subcritical plant at the same heat source temperature the maximum net output power of 133.40 kW and cycle efficiency of 15.70% are obtained when pentane is used as the working fluid. Furthermore the net output power of 133.82 kW and cycle efficiency of 14.90% are obtained when using R141b as the working fluid in the TLC power plant. According to the off-design simulations an appropriate adjustment of the working fluid flow rate can mitigate the variation of the net output power.
ศักยภาพและการประยุกต์ใช้งานเครื่องมือวัดการแทรกสอดพลาสโมนิก
In this research the design of plasmonics interference using micro PANDA ring resonator as the source of single photon and entangled photon generation from the four-wave mixing process was studied. The coincidence of photons from Hong Ou Mandel effect between a wave guide and a micro PANDA ring resonator layer was detected. The whispering gallery mode of interference at the central top inducing the plasmonics signals at the outer nano gold coating PANDA layer was used to analyze from micro particles. Its quality factor was found at 106 of order magnitude and became appropriately to apply this plasmonics interference to be biosensor.