จำนวน Repository ( 1139 )
การวิเคราะห์หาปริมาณคลอร์ไพรีฟอสและโลหะหนักที่เป็นพิษบางชนิดในตัวอย่างผักจากแม่น้ำเลย
The research aimed to analyze and compare contents of accumulated residue of chlorpyrifos chromium lead and cadmium in five varieties of vegetables in Loei River Loei Province. Five varieties of vegetables such as Vegetable fern (Diplazium esculentum Limnocharis flava (L.)) Limnocharis flava (L.) Buch Lasia spinosa (L.) Thwaites swamp cabbge (Ipomoea aquatica Forsk) and water mimosa (Neptunia oleracea Lour.) were collected during winter summer and rainy seasons from Phu Luang Mueang Loei and Chiang Khan District. Chlorpyrifos was analyzed by high performance liquid chromatography (HPLC). The results showed that the highest chlorpyrifos contents were found in vegetables in winter and summer season in the amount of 0.04±0.00 mg/kg. Analysis of all three heavy metals were carried out dry ashing at 500C and acid digestion with nitric acid prior to analyzing by flame atomic absorption spectrophotometry (FAAS). The results showed that cadmium accumulation in the highest content among all metals in water mimosa (Neptunia oleracea Lour.) in summer season from Phu Luang District (1.83±0.01 mg/kg). The second highest metal content was lead which has found in swamp cabbge (Ipomoea aquatica Forsk) in summer from Mueang Loei District (1.40±0.08 mg/kg). chromium showed the lowest content in Limnocharis flava (L.) Buch in winter from Mueang Loei District (0.47±0.04 mg/kg). The contents of chlorpyrifos and heavy metals were not exceed the legal limits set by International Standard Food and Ministry of Republic Health No.98 of Thailand except Ipomoea aquatica Forsk which collected in summer that showed the lead content higher than the legal limits.
การใช้เห็ดทดแทนไขมันสัตว์ (มันแข็ง) ในผลิตภัณฑ์หมูยอ
The objective of this study is to survey consumer behavior’s want in using mushroom replace of fat in the vietnamese sausage. The result of this survey is the choosing Phutan oyster mushroom to use replace of fat. Studying the basic method in producing the vietnamese sausage by studying the amount of fat at 40 60 and 80 grams The result of this the vietnamese sausage that has 80 grams fat because emulsion in the fat makes the vietnamese sausage soft and delicious. And study about the amount of mushroom at 80100 and 120 grams replace of fat The result of this the vietnamese sausage that has the mushroom 100 grams because the vietnamese sausage is the softest and springiness has the weakest smell of mushroom. This compare the original vietnamese sausage with the study on fat replacement by mushroom in vietnamese sausage found that the mushroom vietnamese sausage has the fat lower than the vietnamese sausage 12.78 fold and the most fiber 5.33 fold. Studying self life of the mushroom vietnamese sausage at 5-8.C found that Aw color and the moisture content increase and test about microbe TPC in this product is less than 10 cfu/g and lower than the benchmark (it must be lower that 1x103 for 1 gram). Acceptant the most consumers moderately.
การออกแบบและพัฒนาเครื่องแต่งกายสำหรับคนพิการทางการเคลื่อนไหว (วีลแชร์) กลุ่มสถานสงเคราะห์เด็กพิการและทุพพลภาพปากเกร็ด (บ้านนนทภูมิ)
The purposed of this research the design and development of disabled clothing who sit on wheelchair to solve of wearing and removing their clothes and increase their confident to stay in normal societies for them. Research processes was to collect primary data by disabled sample measurement observed and interviewed about their requirement of the clothes analyzed and designed clothing for disability people who sit on wheelchair selected the designs to make as; 3 men clothes and 3 women clothes. Then took disability sample of 10 men’s wear and 10 women’s wear to try on clothes and corrected data to satisfied assessment of disability people for 20 samples. Statistic tools were percentage standard average and standard deviation. Research result found that disabled clothing who sit on wheelchair which selected by experts. Experts choosed prototype#1 prototype#3 and prototype#4 for Men’s wear and prototype#1 prototype#2 and prototype#4 for Women’s wear. Satisfied assessment of disabled boy who effect with clothes of Pretty Outlook Trendy Neatly Comfortably found ; In Men section as Men prototype#3 Men prototype#4 Men prototype#1 could reach satisfies as high-scored (Average scored 4.5 4.5 and 4.1). In women section as women prototype#1 Men prototype#2 Men prototype#4 could reach satisfies as high-scored (Average scored 4.4 4.2 and 4.1). of 10 sample people whom aged between 10-20 years old educated in primary school incomed less than 2000 bahts Almost care giver was female who went out to normal societies for 1-2 times per month and wanted to buy new cloth. Satisfied assessment of disabled boy who effect with clothes of Pretty Outlook Trendy Neatly Comfortably found ; In Men section as Men prototype#3 Men prototype#4 Men prototype#1 could reach satisfies as high-scored (Average scored 4.5 4.5 and 4.1). In women section as women prototype#1 Men prototype#2 Men prototype#4 could reach satisfies as high-scored (Average scored 4.4 4.2 and 4.1). It found Men prototype#1 Men prototype#3 as highest scored of satisfaction (Average scored 4.85 and 4.65 ) Men prototype#4 as high scored of satisfaction (Average scored 4.40 ). Which effected to women’s wear found that Women prototype#4 as highest scored of satisfaction (Average 4.90 ) and Women prototype#1 and #2 as high scored of satisfaction (Average 4.40 ).
สโตแคสติกเพื่อวิเคราะห์สถานะบีบอัดของแสงในวงแหวนสั่นพ้องแพนด้า
The stochastic process and the squeezed state representation of photons was applied to study the propagation of the entangled photons produced in a nonlinear micro PANDA ring resonator. The four-wave mixing process for generating entangled photon is also analyzed to get the stochastic equation of motion of the entangled photon states. The external spectrum correlation for entangled photon generation is also achieved in analytic form. The results are appropriate to be a quantum processing device to use in quantum computer.
การผลิตวัสดุดูดซับเสียงจากวัสดุผสม ยางโฟมธรรมชาติและเส้นใยธรรมชาติ
This research work was to study the effect of surface treatment of natural fiber and the effects of type and content of natural fiber on the development of acoustic material from natural rubber foam /natural fiber composites. The surface treatment used for this research work was sodium hydroxide (NaOH) treatment. NaOH Concentrations and treatment times were varied from 0 to 15 %wt. and 0 to 30 min respectively. Natural fibers used for this work were bagasse fiber (BF) and oil palm fiber (OPF). The suitable condition for surface treatment was estimated by fiber length and diameter (L/D) ratio and morphology of natural fiber. The result suggested that L/D ratios tended to increase when NaOH concentrations and/or treatment times increased except for NaOH concentration of 15 %wt. L/D ratios of OPF after surface treatment were changed more than those of BF. The suitable conditions of NaOH treatment for BF and OPF were NaOH concentration of 10 %wt. and surface treatment times of 30 and 10 min respectively. The effects of fiber type and content on sound absorption properties of natural rubber foam /natural fiber composites were investigated by cell characteristics sound absorption coefficient DMA analysis and bulk density. Both treated BF and OPF with suitable treatment condition were varied from content of 0.0 to 10.0 %wt. The result showed that the cell size of composites tended to decrease with addition of natural fiber whereas number of foam cell per unit volume increased. After adding natural fiber more than 2.5 %wt. cell size of composite foam and number of foam cell per unit volume tended to change the inverse direction. Natural fiber in composites enhanced the sound absorption efficiency. Sound absorption coefficient of composites adding BF was more than that of composite adding OPF. The addition of natural fiber enhanced the elasticity of composites and that increased sound absorption efficiency. NaOH treatment led to creation of strong interfacial bonding between natural fiber and natural rubber and enhanced the sound absorption efficiency. Density of NR composite foam increased with increasing natural fiber content.