จำนวน Repository ( 137 )
การวิจัยเพื่อการพัฒนาปฏิบัติการเคมีวิเคราะห์ : การวิเคราะห์กึ่งจุลภาคเพื่อเป็นมิตรต่อสิ่งแวดล้อม
Analytical chemistry laboratory manual was developed for the student in the Division of Enviromental Science and Technology Faculty of Science and Technology Rajamangala University of Technology Phra Nakhon with the aim of promising the laboratory skill of the student in the preparation and standardize the solution gravimetric analysis volumetric analysis and finally spectroscopy analysis. Traditionally in the analytical laboratory pricey analytical grad of the reagent with large amounts and quantities is required. Moreover some of them are toxic and harmful to the environment. These can cause a problem for the university in which the budget is limited. In this work the idea of the small but powerful experiment was conducted. All the chemical and reagent was reduced to 50%. In the final laboratory instead of costly and toxic reagent some substances were replaced with the natural material such as water extraction from purple cabbage. According to the results the developed experiments were accurate enough for practicing the student except for the precipitation titration experiment. In order to evaluate the understanding a mini-project was assigned to the student in the group. By using the developed manual the student can overcome the problem in the lab and the awareness of the environment was also improved.
การวิเคราะห์ผลทางเศรษฐศาสตร์สำหรับติดตั้งสถานีจำหน่ายไฟฟ้าย่อย
This research study is the application of Geographic Information System (GIS) for distribution substation. The main purpose is to satisfy user by planning to support the increase of load at present and in the future. Moreover increase in creditability of distribution system by increasing new substation or expand the area of exist substation. Then Geographic Information System is necessary for the mentioned reason. Geographic Information System is the process of geographical data in computer system that defined useful information and related to spatial data such as residential property house number location latitude and longitude. Geographic Information System consists of capture store manipulate analyze manage and present all types of geographical data according to user’s objective. So Geographic Information System is the utility that be useful for distribution substation project. The research is planning to use Geographic Information System for finding Break-even point between increasing new substation or expand the area of exist substation which is 2 case studies.
การวิเคราะห์แรงดันตกคร่อมหัวสายเคเบิลใต้ดินที่ใช้รูปแบบการจัดวางสายของการไฟฟ้าส่วนภูมิภาค
System of The Provincial Electricity Authority using the grounding wire connected between the cable end and Surge arrester format it is connect the cable from the end of the cable set to the end of the Surge arrester and grounded wire that splits the ground between the cable connecting point and the Surge arrester format it is a separate grounding connecting point to the cable end and Surge arrester on both sides of cable riser pole by Computer program. Resulting from computer analysis and the comparison of line setting found that if setting line lead to ground and join with ending cable line and Surge arrester lead in to line voltage drop less than setting line to ground with separate line and Surge arrester.
การพยากรณ์ภัยแล้งในประเทศไทย โดยใช้การวิเคราะห์เชิงพื้นที่ด้วยแบบจำลองผสมเชิงเส้นวางนัยทั่วไปแบบเบย์
The objectives of this research were to propose a spatial analysis using Bayesian generalized linear mixed model for predicting drought in Thailand. The spatial effect was assumed to be a conditional autoregressive model (CAR model). The dependent variables was a drought or non-drought occurrence which was assumed to have a Bernolli distribution with logistic link function. Factors considered were rain temperature number of rainy days number of large reservoirs and number of medium reservoirs. The results show that the rain temperature number of rainy days number of large reservoirs and number of medium reservoirs influence on the drought occurrence. This study is useful for planning making decision preventing and remedying the drought problem.
การวิเคราะห์ลิงค์เว็บไซต์ของคณะวิศวกรรมศาสตร์ มทร.พระนคร
This research aims to study the website link analysis of Faculty of Engineering RMUTP both of the internal link or the external link via the HTTP standard response code of all 9 under graduate departments web pages. From reasons of the web developers create and modify some part of content such as to include more the pieces of information or to exclude its. The website data collection period started from February 2018 to May 2018 via several directory paths or link-paths and the author found 404 (Not Found) most often than 405 (Method Not Allowed) and 504 (Gateway Timeout) in order on average 78 percent. Totally the links into and out of the engineering faculty website approximately 7500 connections.