จำนวน Repository ( 644 )

การพัฒนาและผลิตอิฐบล็อกมวลเบาโดยการผสมเส้นใยธรรมชาติ
การพัฒนาและผลิตอิฐบล็อกมวลเบาโดยการผสมเส้นใยธรรมชาติ

In this study we investigated on the mechanical properties and physical properties of light weight block mixed with banana fibers. For the cost effective purpose and environmental friendly product banana fibers which is rich in fiber was used as a precursor in producing light weight block. In this framework a series of blocks were fabricated using banana fibers for instead different raw material involve cement and sand for 28 days incubation. The result show that the block with mix banana fiber was replaced cement in 2.5 %wt has the density value and compressive strength is 1376 kg/m3 and 62.25 kg/cm3 respectively. While water absorption and the maximum shrinkage limit value are 32.86 % and 0.12 % respectively were obtain from the samples mixing 7.5% of banana fibers. After examination of of Thai Industrial Standard (TIS 1505- 2541) the result illustrated the value are standard. It can be concluded that the light weight block mixed banana fibers in ratio of sand: cement: lime: gypsum: aluminum powder: banana fibers are 50: 27.5 : 9 : 9 : 2 : 2.5 will also be used as an alternative precursor materials for producing the light weight block by natural raw materials for cost effective purpose.

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การพัฒนาเงื่อนไขขอบเขตของแบบจำลองน้ำตื้นเพื่อขยายการทำนายมรสุมตะวันออกเฉียงเหนือ
การพัฒนาเงื่อนไขขอบเขตของแบบจำลองน้ำตื้นเพื่อขยายการทำนายมรสุมตะวันออกเฉียงเหนือ

The shallow water model is a mathematical model was developed from the shallow water equations. It consists of the continuous flow and the momentum equation of non-linear in the x-axis and y-axis. The boundary conditions of the model is the cyclic continuity from east to west and the open boundary conditions from north to south. The northeast monsoon forecast by the shallow water model can’t be predicted in a long time period because the boundary conditions of the model has a problem. Thus improvement the boundary conditions of shallow water model by using wall boundary condition from north to south. The results of this research to found that the shallow water model can correctly forecast the northeast monsoon period in the long term.

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การพัฒนาผลิตภัณฑ์จากผลสับปะรดเพื่อส่งเสริมรายได้สาหรับนักเรียนมัธยมศึกษา อำเภอเมือง จังหวัดชัยภูมิ
การพัฒนาผลิตภัณฑ์จากผลสับปะรดเพื่อส่งเสริมรายได้สาหรับนักเรียนมัธยมศึกษา อำเภอเมือง จังหวัดชัยภูมิ

The development of processed pineapple product for export to promote extra income of high school students in Muang district Chaiyaphum province. The purpose of this research is to develop the quality of processed pineapple products which has been tested by Randomized Complete Block Design (RCBD) method at 95% trusted evaluated by 9 point Hedonic scale sensual quality tasting by 70 people compared the means difference by Duncan’s New Multiple Range Test (DMRT) and analyzed the results by the statisticcomputer software. The processed pineapple products are pineapple filling cookies instant pasteurized pineapple juice and chocolate coating dried pickled pineapple. These products are subjected to simple preparation and advantageous for high school students to earn extra income from the production. The chemical quality analysis of pineapple filling cookies consists of 15.6 percent of humidity 4.21 percent of protein 15.6 percent of fat 0.99 percent of ash 1.98 percent of fiber and 67.6 percent of carbohydrate. The total energy is 428 kilocalorie total microbe (TPC) is microbe<10 CFU/g or less than 1x103 colony per 1 gram of example. The storage lifetime extends up to 2 weeks from the production date. The instant pasteurized pineapple juice has total 57.6 kilocalories of energy 13.6 percent of carbohydrate 0.34 percent of protein 0.04 percent of fiber 0.39 percent of ash and 85.7 percent of humidity. The high level of humidity which contains individual liquid quantity in the product will increase the risk of spoilage from microbe. The total microbe (TPC) has microbe <10 CFU/g and specified the number of total microbe must be lessened than 1x103 colony per 1 gram of example. Conclusion the instant pasteurized pineapple juice can be stored at 8-10 degree Celsius for 2 weeks from the production date. The study of dried pickled pineapple physical quality indicates that color components are as followings; brightness (L*) equals 49.79 which is in high level color balance (a*) equals 11.44 which means the dried pineapple has yellow color tasty represents in green section and color balance (b*) equals 33.50. The procession of the product by coating chocolate onto dried pickled pineapple has 16 percent humidity of total weight. The total microbe (TPC) has microbe <10 CFU/g and specified the number of total (3) microbe must be lessened than 1x103 colony per 1 gram of example. Conclusion chocolate coating dried pickled pineapple can be stored at room temperature for 2 weeks from the production date. The research respondents have the most satisfaction for the study to apply the information to utilization in the mean of 4.80. Secondary the value compared to time and cost in the both mean of 4.50 which has the most total average mean in the high level of 4.33.

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ความต้องการพัฒนาตนเองเพื่อรองรับการเข้าสู่ประชาคมอาเซียนของนักศึกษา คณะเทคโนโลยีคหกรรมศาสตร์ มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
ความต้องการพัฒนาตนเองเพื่อรองรับการเข้าสู่ประชาคมอาเซียนของนักศึกษา คณะเทคโนโลยีคหกรรมศาสตร์ มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร

The survey research aimed to: 1) study the levels of self-development needs in preparation to enter AEC; 2) make a comparison of the students’ needs levels in aspects of personal data; and 3) propose appropriate forms of activities to be used in the development. The subject obtained through stratified random sampling consisted of 321 first-fourth year undergraduates of the Faculty of the Home Economic Technology Rajamangala University of Technology Phra Nakhon. The tool was a questionnaire. To analyse data the frequency percentage mean standard deviation t- test and ANOVA were used. The results were as follows: 1) The overall level of self-development needs was high ( X = 3.75). The needs for selfdevelopment in line with the Thai Qualifications Framework for Higher Education were high ( = 3.89). Moreover the level of needs conforming to Thai Graduate Preferable Qualifications for the ASEAN Community was moderate ( X = 3.46). 2) There was no statistically significant difference ( p<0.05) of the self-development needs level when genders educational levels or academic performances were considered 3) As for the activities it was rated best to use training for the development of cognitive skills numerical analysis communication and information technology skills domain of psychomotor skills and knowledge on ASEAN Community rules and regulations; lecturing for knowledge on ASEAN Community rules and regulations; study touring for knowledge development; camping for ethics and moral interpersonal skills responsibility and language skills; and student inter institutional exchanging for neighbouring countries knowledge development.

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