จำนวน Repository ( 194 )

ผลการใช้นาโนเทคโนโลยีของเครื่องแต่งกายเชฟที่มีผลต่อความปลอดภัยในอาหาร
ผลการใช้นาโนเทคโนโลยีของเครื่องแต่งกายเชฟที่มีผลต่อความปลอดภัยในอาหาร

The research regarding effect of nanotechnology use in making chef apparel on safety of food had the objectives to study about the result of using nano materials coating on yarn and fabric; to study about the use of nano materials which are suitable for fabric to be sewn for being chef apparel and to study the effect of using of nanotechnology for chef apparel on smell and the inhibition of pathogenic bacteria growth using three types of nano materials including Zinc oxide nano Silver nano and Titanium dioxide nano to be coated on four samples including cotton thread T/R thread cotton fabric and T/R fabric. The researcher tested the fabric sample for inhibiting growth of pathogenic bacteria and found that Zinc oxide nano and Silver nano were not different in inhibiting growth of pathogenic bacteria. But the coating on the fabric is more convenient and cheaper. And effective against Gram-positive bacteria. A bacterium that is often found in personal hygiene unclean conditions better than or equal to SS.S3%. Then Four kinds of fabric were sewn to be chef apparel. Actual chef tried wearing to test effectiveness in resisting bacteria. When the apparel was used for two times it was found that T/R fabric which was coated with Zinc oxide nano and Silver nano had different ability to resist gram-positive bacteria and gram-negative bacteria. Fabric T/R Silver nano coating remains effective against bacteria as well and proper to be sewn as chef apparel.

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ผลการจัดกิจการรมทางด้านศิลปะประดิษฐ์ กรณีศึกษา : สถานสงเคราะห์เด็กหญิงบ้านราชวิถี กรุงเทพมหานคร
ผลการจัดกิจการรมทางด้านศิลปะประดิษฐ์ กรณีศึกษา : สถานสงเคราะห์เด็กหญิงบ้านราชวิถี กรุงเทพมหานคร

This pre-experimental research presented by one -shot case study design aimed to study the effects of arts and crafts activities for Rajvithi Home for Girls in Bangkok. The target group was teenagers between the age of 15 and 18 years old living in Rajvithi Home for Girls in Bangkok. Purposive sampling method was used for the informant selection which was a classroom with 15 students. The research tools were 8 arts and crafts activities consisting of 1) chic hair band 2) hair pin 3) camphor 4) tulip-shaped key ring 5) sandals 6) decoupage bag 7) coin wrapping and 8) bead garland. Data collection was performed by a performance skill test and the target group’s satisfaction on the arts and crafts activities. Data were analyzed by descriptive statistics. The results were found as follows: 1) For the performance skill test female teenagers aged 15-18 years old got the good scores. 2) For the target group’s satisfaction on the arts and crafts activities female teenagers aged 15-18 years old satisfied with arts and crafts lecturer duration materials arts and crafts activities and activity topics at high levels.

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การสร้างและหาประสิทธิภาพหนังสืออิเล็กทรอนิกส์เรื่อง วิศวกรรมการออกแบบแม่พิมพ์ฉีดตามหลักสูตรอุตสาหกรรมศาสตร์บัณฑิตสาขาวิชาเทคโนโลยีการผลิตเครื่องมือและแม่พิมพ์ พ.ศ. 2555 มหาวิทยาลัยเทคโนโลยีราชมงคล
การสร้างและหาประสิทธิภาพหนังสืออิเล็กทรอนิกส์เรื่อง วิศวกรรมการออกแบบแม่พิมพ์ฉีดตามหลักสูตรอุตสาหกรรมศาสตร์บัณฑิตสาขาวิชาเทคโนโลยีการผลิตเครื่องมือและแม่พิมพ์ พ.ศ. 2555 มหาวิทยาลัยเทคโนโลยีราชมงคล

This research aims to develop and calculate the efficiency of electronic books injection mold design engineering for Plastic Mold Technology1 (04-812-313) The participants of this research were 40 third year students who enrolled in Plastic Mold Technology1 subjects in first semester 2013. The research tools were 1) an electronic books 2) a questionnaire for measure an efficiency of electronic books 3) an achievement test. Data were analyzed by using difficulty discrimination validity index of consistency The result showed that quality of electronic books injection mold design engineering was in a very good level with higher sufficiency mean = 1.13 than criteria at mean = 1 and was very useful for Plastic Mold Technology1 (04-812-313)

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ปัจจัยที่มีผลต่อความพึงพอใจสำหรับการใช้งานระบบสารบรรณอิเล็กทรอนิกส์ : กรณีศึกษา มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
ปัจจัยที่มีผลต่อความพึงพอใจสำหรับการใช้งานระบบสารบรรณอิเล็กทรอนิกส์ : กรณีศึกษา มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร

This research had the objectives to 1) study of the achievement in electronic document system for using in Rajamangala University of Technology Phra Nakhon 2) study the factors what they affect to satisfaction for electronic document system in Rajamangala University of technology Phra Nakhon 3) suggestion an improvement plan for these achievement system to develop and improve the relevant systems. The official workers in Rajamangala University of Technology Phra Nakhon were concerned in electric document system as 238 persons. The analytical data were Frequency Percentage Mean Standard Deviation t-test analysis Reliability of questionaires and One Way Analysis of Variance. The results shown as the satisfactions level in efficiency system Information system quality control system and management system were very good. The comparison of 2 samples groups by t-test at 95% confidence as the group who need the hard copy documents and useless documents with t-test at. The results were not different in the efficiency level information technology system and data management. The results more than 2 sample groups were analyzed by ANOVA at 95 % confidence. The result showed the satisfaction in the present position working of the samples as the instructors document official or relevant official and the other official was not different whereas the satisfaction in information technology was different. In addition the satisfaction of electronic document system was not different for the official in general education and management duty.

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The Effect of chain extender on rheological properties of recycledpoly (ethyleneterephthalate)
The Effect of chain extender on rheological properties of recycledpoly (ethyleneterephthalate)

The effect of chain extender on the improvement of molecular structure and rheological properties in shear and elongation of recycled poly (ethylene terephthalate) was studied. The results suggested that addition of chain extender increased the molecular weight and broader molecular weight distribution of recycled poly (ethylene terephthalate). A gel fraction of cross-linked material was formed and the amount of gel content was dependent on the amount of chain extender used. Moreover it was found that the addition of chain extender increased the shear and elongational viscosities of recycled poly(ethylene terephthalate). The increases of viscosities were explained that the extension of poly (ethylene terephthalate) chains caused a reduction in chain mobility. As for the tensile properties at the molten and solidified state it was seen that the increase of tensile properties resulting from chain extender rose up to 0.6 wt% before it reduced at the chain extender loading of 0.9 wt%.

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