จำนวน Repository ( 580 )
การพัฒนาและสร้างเครื่องมือในการช้อนเนื้อเยื่อใบสับปะรด
Currently the pineapple leaf paper that is produced by using local wisdom is 50 centimeters wide and 64 centimeters long. Therefore the product of the Cooperative is small. And because the size of the paper is limited they cannot be used for producing room divider big umbrella or big painting as per customer’s demand and the members of the cooperative cannot produce large sheet of paper. The researchers therefore designed the Pineapple fibrous leaf sieving Equipment in order to produce large sheet of paper. The equipment consists of a square basin for washing leaf fiber sized 185 centimeters 10 centimeter deep with a 90-centimeter high stand to support the basin and installed the mechanism to lift up the sieve that is used to take up the pineapple leaf fiber. The sieve is 150 centimeters x 150 centimeters which is the largest size possible because the leaf fiber washing must is done by hand. If the sieve is bigger we will not be able to reach to the leaf fiber in the center. Base on the experiment of pineapple leaf paper production by using the new equipment as compared to the paper production as per local wisdom by using 2.5 kilograms pineapple leaf fiber and the paper thickness shall be fixed at 0.35 millimeters it is found that the production that use pineapple fibrous leaf sieving equipment takes 647 second on average and the production as per local wisdom takes 1421 second on average. In other words the equipment can help to reduce the time in paper production of 774 second or 54 %. Apart from that the researcher produced the paper with different thickness by increasing the pineapple leaf fiber by 0.5 kilograms per one sheet of paper so that there are more options to choose in order to match with various products. The amount of leaf fiber used in the production starts from 3 kilograms to 7.5 kilogram per sheet and the thickness of the paper is from 0.36 millimeters and the thickest paper is 1.2 millimeters thick using approximately 7.5 kilograms of leaf fiber. If we use more leaf fiber for paper production the paper will be overweight and it will be sagging.
การวิเคราห์ความน่าเชื่อถือได้ในการทำงานของเครื่องจักร และหาสาเหตุของเครื่องจักรเสีย: กรณีศึกษาโรงงานผลิตชิ้นส่วนรถยนต์
This research proposes reliability analysis in order to find the probability that a machine will work properly the failure rates of a machine and the factors related to the failure rates. The data were collected from 8 types of machines in an autoparts manufacturing factory. They consist of the times measured from the first day of the study until the machine produces defective product workers and production steps. The study duration is 90 days. The results show that the probability that the machine type 4 will work properly more than days is 0.40 machine type 5 more than 68 days is 0.32 machine type 6 more than 72 days is 0.31 machine type 8 more than 85 days is 0.26 machine type 9 more than 109 days is 0.80 machine type 10 at more than 52 days is 0.38 machine type 11 more than 71 days is 0.32 and the probability that the machine type 12 will work properly more than 85 days is 0.26. The failure rate of the machine type 4 at day 51 is 6.61 machine type 5 at day 68 is 1.61 machine type 6 at day 72 is 0.77 machine type 8 at day 85 is 1.26 machine type 9 at day 109 is 1.31 machine type 10 at day 52 is 0.92 machine type 11 at day 71 is 1.24 and the failure rate of the machine type 12 at day 85 is 2.15. The factors influencing on the failure rates are worker group 2 and production step 3 at the significance of 0.05.
การพัฒนาชุดกระโปรงติดกันที่ตกแต่งด้วยผ้าปักม้งสำหรับวัยรุ่น
The objectives of this research were to develop dress decorated with Hmong cross - stitch for teenagers and to study customer satisfactions towards dress decorated with Hmong cross- stitch for teenagers. Sampling groups are 400 teenage ladies aged from 15 years old up to 25 years old living in Chiang Mai. Tools used are questionnaires and dress decorated with Hmong cross- stitch prototype in the amount of 9 different models by using random sampling. The collected data were analyzed by using statistics on percentage mean and standard deviation. The results of the research showed that most of the respondents aged from 21-23 years old which their educations were in bachelor level and occupations as students earning income less than 10000 Baht/month. Most of them interested in Hmong cross- stitch and used to use products from Hmong cross- stitch and the objective of the purchasing is to give as souvenir in most cases. The drawback found from using the products made of Hmong cross- stitch was thread lint. Easy- care remained the reason of buying products derived from Hmong cross- stitch and beauty was the reason to buy dress. The price range to buy dress was 301฿ – 500 ฿. In addition the result declared that the majority of respondents interested in dress decorated with Hmong cross- stitch as the result of promoting Hmong cross- stitch and enhancing the opportunities for teenagers to experience clothing made from Hmong cross- stitch. The analysis of respondent satisfaction towards dress decorated with Hmong cross- stitch for teenagers revealed that all models gained high level of satisfaction.
Potential of extracts of Ficus hispida linn for controlling germination and Growth of Weed in Rice Field for Increase the value of biodiversity and its sustainable use
The potential of extracts of the Ficus hispida Linn to inhibit germination and growth of barnyardgrass (Echinochloa crus-galli) a common weed in rice. The bark leaves and fruit of F. hispida isolated by the Maceration and extracted by the polarity of the solvent (Sequential Extraction) with organic solvents such as hexane ethyl acetate and methanol when each part of the crude extract was tested the type of phytochemical tested for germinate inhibition root length inhibition stem length inhibition and dry weight inhibition of barnyardgrass and selected extracts with highest inhibition to separation using column chromatography the fractions tested repeating. The results showed that 1. Crude methanolic extracts from the bark leaves and fruit of barnyardgrass at a concentration of 3000 ppm showed highest inhibited percentage of germinate inhibition root length inhibition stem length inhibition and dry weight inhibition. 2. Fractions methanolic extracts from the bark leaves and fruit of barnyardgrass on a separate with column chromatography found that fractions extracts F5 F8 and F2 showed highest inhibited percentage of germinate inhibition root length inhibition stem length inhibition and dry weight inhibition.
Development of vegetables and fruits tablet
Study to process of vegetable and fruit tablet which study about 2 types such as banana and kale. The first step; drying banana and kale by thermal processing with hot air oven at 605C for 30 min. Next grinded dried banana (DB) and dried kale(DK) to become powder size 80 mesh Aw 0.270.26 0.290.31 and 0.330.28. After that mixed %DB 25 %DK 37 %DC 37 %grinded sugar 32 %thickness agent 4 and %lubricant agent 2. The physical of V&FT has thickness 1.50.02 mm. diameter 10.03 cm. and weight 2.60.05 g. The resulted about sensory test was accepted by the panelists with the score above 7 (like moderately; 7.320.52) and was accepted all characteristic of V&FT. And V&FT was not found microorganisms that cause food to be rotten.