จำนวน Repository ( 1574 )
การพัฒนาบรรจุภัณฑ์เพื่อสิ่งแวดล้อมจากวัสดุคอมโพสิตเส้นใยผักตบชวา แกลบ และใยมะพร้าว สำหรับรักษาอุณหภูมิ
The research was to develop environmental packaging from composite materials hyacinth fiber rice husk and coconut fiber for temperature preservation to replace the use of foam packaging that cannot be degraded naturally. In the composite materials water hyacinth fiber rice husk and coconut fiber at the ratios 7: 1: 2 1 : 1 : 2 and 1: 1: 1 were extruded by heat using isocyanate glue as a solder and testing the physical and biological properties of composite materials as fiberboard. For testing of temperature preservation of the bio packaging heat transfer test to obtain the bio-packaging for the environment the composite materials of fiber water hyacinth rice husk and coconut fiber at the ratio of 7 : 1 : 2 was the most appropriate type. Since it had a density of 0.7 grams per cubic centimeter strength of 26.76 MPa moisture content of 3.8 percent ages and swelling of 26.63 percent ages. In dry condition at room temperature it could store heat for 2 hours and could retain the cold temperature as shown for the temperatures rising from 4 to 30.7 degree Celsius within 2 hours. This research therefore presents a new alternative method of natural fiber composite materials application for temperature preservation in order to reduce the use of foam containers and increase cost value to natural bio waste materials.
การตรวจสอบความเสียหายของถังเก็บน้ำมันด้วยการตรวจสอบแบบไม่ทำลายโดยใช้เทคนิคการปลดปล่อยคลื่นเสียง
Non-destructive test with Acoustic Emission technique was used for monitoring of the corrosion in the above ground oil storage tank. In the analytical characteristics of acoustic emission wave however Acoustic Emission test has to be prior used for the location detection of corrosion especially indication of the severity of corrosion. In this research the relationship between the corrosion rate and the sound wave energy was studied. The corrosion and damage detected on the surface of the aboveground storage tank was determined by the Acoustic Emission Test. Nine pieces of low carbon steel grade SS400 was soaked in sodium chloride solution in simulated tanks at concentrations of 1.5 3.5 and 5.5 wt%. Next the corrosion activity was checked by performing with the Acoustic Emission Testing for 1 hour and thus calculating the corrosion rate of the test specimens. From the experiment it was found that the rate of corrosion affects the Acoustic Emission Energy. The corrosion rate was increased with the concentrations of the solution increasing from the corrosion process. The corrosion rate was also increased with the sound wave power increases. Therefore in order to achieve the corrosion rate and the position of the defects on the inner surface of the tank non-destructive testing with acoustic emission technique can be factually chosen for this specific application.
การพัฒนาผลิตภัณฑ์สารสกัดจากผลกล้วยและเปลือกมะละกอทดแทนสารเคมีเพื่อยับยั้งเชื้อจุลินทรีย์ในครีมทาส้นเท้า
At present most human-related products contain a mixture of chemicals for inhibiting microorganisms polluting the environments and harming the users. The purpose of this research was to develop a product using banana and papaya peel extracts as replacers for the chemicals inhibiting microorganisms in heel cream. By extracting raw bananas and papaya peels with coconut oil the studying the efficacy of inhibition on E. coli S. aureus Aspergillus sp. and S. cerevisiae with Disk Diffusion method at the protein concentration were performed as follows: 25 50 100 and 150 micrograms per milliliter. The observation of clear zone to observer clear zone of inhibition. and the Turbidity method using light absorption at a length of 600 nm was also were shown the corresponding results of microbial inhibition. observed and showed the consistent results. Especially the papaya extract having the protein concentration at least of 150 micrograms per milliliter could inhibit all 4 microbe species but could not inhibit S. cerevisiae that indicated a good trend of no harm on human. When mixing the extract in the heel cream it was found that Heel cream containing banana extract papaya and both mixtures displayed the density of 0.9674 0.9103 and 0.8057 gram per cubic meter respectively. They could be stored at room temperature for more than 45 days and still maintained the properties of microbial inhibition by up to 80 percentages. When studying the satisfaction of consumers collected randomly from teenagers to elders at both sexes of 40 people more than 80 percentages of the customers were satisfied with the heel cream from all extracts. These all creams could make the feet soft and moisturized within 1 week. More suggestions were to improve the smell of heel cream products to be suitable for all age of consumers. Therefore this research could be concluded that banana and papaya peel extracts inhibiting microorganisms could be used as a heel cream for further continuously developing at the industrial level.
ปัจจัยที่มีความสัมพันธ์ต่อการตัดสินใจซื้ออาหารเสริมเกี่ยวกับรูปร่างที่ได้รับรองมาตรฐานจากสำนักงานคณะกรรมการอาหารและยา (อย.)
The objectives of the study were 1) To Study Related Demography to Dietary Supplement Product Certified by the Food and Drug Administration (FDA) 2) To Study Related Demography to Marketing Communication Tool for Social Media 3) To Study Related Marketing Communication Tool for Social Media to Dietary Supplement Product Certified by the Food and Drug Administration (FDA). The study was a quantitative research. A sample was selected from people who bought Dietary Supplement Product Certified by the Food and Drug Administration (FDA). The sample group was 400 graduation. Representative sample the instruments in the study were 1) the questionnaire 2) the frequency percentage and mean were the parameters used for statistical analysis and Chi-square Correlation. The findings indicated that single females age between 19 - 29 years old. Monthly income between 10000 – 20000 baht. Objectives of using social media To Communicate through Facebook. Social media exposure time is 1.00 - 6.59 PM. Convenience is the reason for buying Dietary Supplement Product through social media. And Find Dietary Supplement Product through social media information manually. The hypothesis test was found Factors of Age Education Career Objectives of social media Duration of use Social Media Marketing Communication Tool for Social Media correlated to Dietary Supplement Product Certified by the Food and Drug Administration (FDA) and Factors of Sex Age Career correlated to Marketing Communication Tool for Social Media. Was statistically significant at .05 level
การศึกษาส่วนประสมทางการตลาดที่มีความสัมพันธ์ต่อความพึงพอใจของผู้ใช้บริการร้านซักอบรีด กรณีศึกษาผู้ใช้บริการในเขตเทศบาลตำบลเสาธงหิน จังหวัดนนทบุรี
This research aimed to study impact of demographic factors on laundry service consuming and the relationship between marketing mix and satisfaction of laundry service. Sample group were 384 laundry service customers residing in Sao Thong Hin Sub district Municipality Nonthaburi. A questionnaire was a tool which reliability of Cronbach alpha coefficient showed 0.955 with statistical analysis of Frequency Distribution Percentage Mean Standard Deviation Chi-Square and Pearson Correlation. The results shown that; The customers express their opinions on the scale of high towards every marketing mix including staff places processes prices service quality physical factors of services and marketing promotions respectively. The customers satisfy with overall marketing mix on the scale of very high ranking first the fact that staff were attentive to details. Education levels affect satisfaction level on the topic of inside and outside cleanliness of the shops. And occupation did vary satisfaction on the topic of loss and damaged garments guarantees. The factors of marketing mix including services price places marketing promotions staff processes and physical aspects of services did affect satisfaction on the marketing mix on laundry services.