http://repository.rmutp.ac.th/handle/123456789/102 2026-04-04T15:17:42Z http://repository.rmutp.ac.th/handle/123456789/3641 Development of principle of commucation laboratory simulation program with GUI MATLAB Singkorn, Supanya; สุปัญญา สิงห์กรณ์; Porncharoen, Rungaroon; รุ่งอรุณ พรเจริญ; Chaichan, Anucha; อนุชา ไชยชาญ; Choosiri, Pawana; ภาวนา ชูศิริ With the objective 1) to develop communication system operating simulation program using GUI MATLAB 2) To find the efficiency of communication system simulation program using GUI MATLAB and 3) To compare the calculation results from the developed program with the calculation results The parameters of the high frequency transmission line which were developed to be programmed Classified by type of transmission lines in the air, depending on the frequency and use, including two-wire transmission cables. Twin-plane transmission cables And coax signal transmission lines The program components are divided into 3 screens, namely the main screen, the main program screen And parameter calculation screen Systematic quality and efficiency checks by 5 experts That has specialized expertise The tools used in the research were the quality inspection evaluation form which is divided into 2 parts which are part 1, program testing and part 2, testing the statistical system used for data analysis, including mean, percentage and standard deviation. The research found that 1. The result of the development of communication system simulation program using GUI MATLAB with the structure of the program design Dividing operations into 3 main parts Namely the calculation of two signal transmission lines. The calculation of the twin plane transmission line program And the calculation of the coax transmission line program n each part of the program calculation, there is a working principle of the program. Each part of the calculation of the program has a working principle of the program. Divided into the terms of the scope of the transmission line Calculate capacity Calculate the conductivity Calculate inductance Calculate resistance And calculate the impedance value In which all calculations can show calculation results Select the calculation of various transmission lines. The program that the research team developed The signal transmission line is divided according to the type of usage and frequency. There are 3 signal transmission lines, which are two-wire transmission lines. Twin-plane transmission cables And coax signal transmission lines 2. The result of finding the efficiency of the communication system simulation program using GUI MATLAB is divided into 2 parts. Part 1 Result of the language, order, and ability test for all 5 sub-processes Is correct No errors in the process In which each working process is linked as designed Overall, the system development can work without errors. And when evaluating system acceptance It was found that the developed program could be used as a research tool. When considering each aspect found that Design. Design standards Design quality And the structure that is not complicated design is accepted by experts As a percentage between 82% - 85% Working process, sorting work process Understanding of working language is accepted by experts. As a percentage between 82% - 87% And in front of work, how to work in each work Compliance with user needs is accepted by experts. As a percentage between 80% - 95% And part 2, finding the performance of the communication system simulation program using GUI MATLAB developed, found that the developed program has a high level of performance (x ̅ = 4.16, S.D. = 0.35) 3. Comparison between the calculated results from the developed program and the calculated results With matching calculation results Therefore shows that The developed program can be used in place of efficient calculation by hand. รายงานวิจัย -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2561 2021-08-23T00:00:00Z http://repository.rmutp.ac.th/handle/123456789/3265 Development of learning package with community participation using archaeological site of dusit district to encourage creative learning Julapan, Sunaree; สุนารี จุลพันธ์; Wichiranon, Songsiri; ทรงสิริ วิชิรานนท์; Pornchanroen, Rungaroon; รุ่งอรุณ พรเจริญ The purposes of this research were 1) study basic information on the development of learning package with community participation using archaeological site of dusit district to encourage creative learning 2) development of learning package using archaeological site of dusit district and 3) study the experimental results using development of learning package using archaeological site of dusit district. The sample used in this study consisted of 40 tourists in dusit area by purposive sampling. The data were analyzed by using the dependent t-test. The results showed that 1. The developed learning package has 9 historic sites consisting of Thewarat Kunchorn Temple, Sukhanaram Temple, Benjamabopit Dusit Senaram Temple, New Thong Sen Temple, Rajaphatikaram Temple, Doctor Porn's House, Suan Sunandha Palace, Palace of the day and the temple of Wat Bot Samsen. Each model can be presented in the form of 3D models, along with videos with descriptions of the history of each site. 2.The experiment of learning package using archaeological site of dusit district was significantly higher than before at .01 level. 3. The assessment of the satisfaction from the sample group of users learning package using archaeological site of dusit district were at a high level ( x = 4.13, S.D. = 0.49). รายงานวิจัย -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2562 2020-08-20T00:00:00Z http://repository.rmutp.ac.th/handle/123456789/3190 Product development of light weight concrete wall board mixed with coconut leaf waste for small community enterprise Pakamas,Choosit; ผกามาศ ชูสิทธิ์; Nilamit,Nilas; นิลมิต นิลาศ The objectives of this research are to study the product development of light weight concrete wall board mixed with coconut leaf waste for small community enterprise to find the suitable coconut leaf waste mixed ratio with cement, river sand, coconut leaf waste, water and catalyst accelerator at 1:0.4:0.13:0.33:0.03 ratio. CC13 (1:0.13) at 28 days has density 2,266 kg/m3, bending resistance 3.05 MPa, heat conduction efficiency 0.236 W/m-K. The coconut leaf waste can absorb water inside and the cement board can attach to the concrete wall easily. Suitability to make the big concrete wall. รายงานวิจัย -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2561 2020-02-21T00:00:00Z http://repository.rmutp.ac.th/handle/123456789/3189 Product development of non-flammable gypsum board mixed with corn leaf fiber for using in energy saving building Pakamas,Choosit; ผกามาศ ชูสิทธิ์; Nilamit,Nilas; นิลมิต นิลาศ This research aims to develop the gypsum refractory board mixed with corn leaf coir. The 5 ratios of gypsum plaster: corn leaf coir: tap water: sodium silicate are equal to 1: 0: 1: 0.03, 1: 0.100: 1: 0.03, 1: 0.150: 1: 0.03, 1: 0.200: 1: 0.03, 1: 0.250: 1: 0.03 และ 1: 0.300: 1: 0.03 by weighted. The gypsum refractory boards were produce by casting in normal temperature (30 – 35 degree of Celsius). The properties testing of gypsum refractory board mixed with corn leaf coir followed the TIS 219-2009 standard (gypsum plasterboard) included: breaking load, nail pull resistance, deflection, water absorption, density, and thermal conductivity coefficient. From the results, 1: 150: 1: 0.03 is the most suitable ratio of gypsum refractory board mixed with corn leaf coir. This developed gypsum refractory boards can reduce the quantity of corn leaf waste and get the good thermal insulation gypsum refractory board products. รายงานวิจัย -- มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, 2561 2020-02-21T00:00:00Z