จำนวน Repository ( 71 )

การใช้ประโยชน์จากเศษถนนยางมะตอยเก่าสำหรับผลิตภัณฑ์แผ่นกระเบื้องคอนกรีตปูพื้นที่ต้านทานแรงดัดสูงเพื่อลดผลกระทบต่อสิ่งแวดล้อม
การใช้ประโยชน์จากเศษถนนยางมะตอยเก่าสำหรับผลิตภัณฑ์แผ่นกระเบื้องคอนกรีตปูพื้นที่ต้านทานแรงดัดสูงเพื่อลดผลกระทบต่อสิ่งแวดล้อม

The objective of this research is to develop the concrete flooring tile product from old asphalt road waste. The 6 ratios of Portland cement type1: coarse sand: old asphalt road waste: water reducer type A: tap water were designed including: 1: 5: 0: 0.02: 0.4 1: 4.5: 0.5: 0.02: 0.4 1: 4: 1: 0.02: 0.4 1: 3.5: 1.5: 0.02: 0.4 1: 3: 2: 0.02: 0.4 and 1: 2.5: 2.5: 0.02: 0.4 by weight. The concrete flooring tile casted with the compressive machine. The property tests followed the TIS.378 - 1988 (concrete flooring tiles). According to the result it was found that the 1: 2.5: 2.5: 0.02: 0.4 was the proper ratio of the concrete flooring tile. The increasing of old asphalt road waste in concrete flooring tile effected to decrease the water absorption and thermal conductivity properties. In term of the density and bending strength properties there were not many differences. The developed concrete flooring tile product from old asphalt road waste can use as same as the common concrete flooring tile product in market.

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การพัฒนาผนังบ้านดินสำเร็จรูปที่ต้านทานการชะล้างสูงและเป็นฉนวนป้องกันความร้อนที่ดีสำหรับอาคารอนุรักษ์พลังงานและสิ่งแวดล้อม
การพัฒนาผนังบ้านดินสำเร็จรูปที่ต้านทานการชะล้างสูงและเป็นฉนวนป้องกันความร้อนที่ดีสำหรับอาคารอนุรักษ์พลังงานและสิ่งแวดล้อม

The objective of this research is to develop the precast adobe wall panel with high corrosion resistance and good thermal insulation. The ratio of Portland cement type1 clay rice husk ash straw rice husk waterproofed liquid and tap water was mixed and casted as same as the common concrete and reinforced by bamboo. From the results the proper prototype ratio of precast adobe wall panel was Portland cement type1: clay: rice husk ash: straw: rice husk: waterproofed liquid: tap water which equal to 1: 3: 0.3: 0.02: 0.02: 0.02: 0.4 by weight. The properties of the precast adobe wall panel prototype included density 1797 kg/m3 water absorption 16.70% bending strength 2.61 MPa compressive strength 21.40 MPa thermal conductivity coefficient 0.314 watt/m.Kelvin. Moreover the precast adobe wall panel prototype also was verified by TIS.2226-2548 with properties of impact resistance deflection and hardness in medium duty (MD) level. These straw and rice husk effected the precast adobe wall panel to decrease the density bending strength thermal conductivity coefficient and increase the compressive strength and water absorption.

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ชุดกรองน้ำอย่างง่ายในครัวเรือนสำหรับกำจัดสนิมเหล็กและความกระด้างถาวรของระบบน้ำประปาหมู่บ้านเพื่อการอุปโภคและบริโภค
ชุดกรองน้ำอย่างง่ายในครัวเรือนสำหรับกำจัดสนิมเหล็กและความกระด้างถาวรของระบบน้ำประปาหมู่บ้านเพื่อการอุปโภคและบริโภค

The objective of this research was to determine and estimate the quality of ground water for producing village-tap water without pre-treatment in 3 districts Samchuk Nongyasai and Dermbangnangbuat districts Suphanburi province. Villagetap water was collected from 88 boreholes covered 17 sub-districts in June 2014 and January 2015 using standard method and then correctly preserved before analysis process. The result showed that pH conducted in filed using pH meter found in the range 7.0 to 9.2. Total hardness was found in the range of 110 to 590 mg/L as CaCO3. The concentration of Mn Fe Pb was found in the range of 0.08 - 0.88 mg/L nd - 1.88 mg/L and nd - 0.07 mg/L respectively. The concentration of Cd was to be non-detectable for all samples. The result found that total hardness was found higher value than standard quality water according to publish by Ministry of Natural Resources and Environment Thailand. The contamination of Mn and Fe in some samples was higher value than maximum allowable concentration. The problem of Fecontamination can extremely affect to physical properties of quality water. The production of household-water filtration in this work was modified from Bureau of Community Technology Department of Science Service Ministry of Science and Technology. The technology communication of the production household-water filtration was conducted by workshop procedure. The production household-water filtration was conducted step-by-step. All participants can produce the household-water filtration by themselves.

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การพัฒนาวิธีสำหรับวิเคราะห์แกมมา-โอริซานอบในรำข้าวด้วยตัวทำละลายที่เป็นมิตรกับสิ่งแวดล้อม
การพัฒนาวิธีสำหรับวิเคราะห์แกมมา-โอริซานอบในรำข้าวด้วยตัวทำละลายที่เป็นมิตรกับสิ่งแวดล้อม

This research project aim to develop method for analysis of gamma-oryzanol in rice bran with environmental friendly solvent. The total content of gamma-oryzanol in rice bran was investigated using the combination between partial extraction method with ethyl lactate solvent and the study of factors on partial extraction. The parameters that effect the amount of gamma-oryzanol with partial extraction method consist of weight of rice bran volume of solvent and extraction time were conducted. The result shown the maximum content of gamma-oryzanol that extracted with 50 milligrams of rice bran 5 milliliters of ethyl lactate and 2 minutes of extraction time. The quantity of gamma-oryzanol in rice bran that observed using partial extraction method with ethyl lactate solvent and classical extraction method were 4.23 and 4.32 milligram per gram rice bran respectively. The results from both extraction methods were well agreement. When the extracted rice bran was separated with High Performance Liquid Chromatography the result shown the main compositions of extracted rice bran including cycloartenyl ferulate 24-Methylene cycloartanyl ferulate and campestanyl ferulate. The develop method for analysis of gamma-oryzanol in rice bran using partial extraction with ethyl lactate solvent is easy use only small apparatus in laboratory cheap short-time consuming and use environmental friendly solvent.

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การศึกษาและออกแบบสภาพแวดล้อมทางกายภาพเพื่อตอบสนองต่อการใช้งานสำหรับเด็กพิการ กรณีศึกษา: การปรับปรุงสภาพแวดล้อม ของสถานสงเคราะห์เด็กพิการปากเกร็ด  จังหวัดนนทบุรี
การศึกษาและออกแบบสภาพแวดล้อมทางกายภาพเพื่อตอบสนองต่อการใช้งานสำหรับเด็กพิการ กรณีศึกษา: การปรับปรุงสภาพแวดล้อม ของสถานสงเคราะห์เด็กพิการปากเกร็ด จังหวัดนนทบุรี

This research is the study and design of the physical environment to cater for children with disabilities to use a case study: improving the environment. Children of disabled Pak Nonthaburi study to improve the environment. Children of disabled Pak In order to create jobs and public benefits in the form of a physical environment that is suitable for use for children with disabilities who have a lot of current. The standard test for standards in the design of the physical environment in response to applications for children with disabilities. The study and design of the physical environment of the orphanage for disabled children in Pak Kret. Nonthaburi Interview Design Specialist Concluded in the production and design of the model the researchers examined the experts as appropriate. The researcher has taken the form of physical environment of the area for correction. Then the residents living in the questionnaire about the usage patterns of 200 people which is as follows. The front living An average of 4.85 more convenience average of 4.55 more security average is 4.75 the design average is 4.95 the highest overall satisfaction is at the highest level. Then test the furniture Found that the test kit furniture The tests of static force acting on the seat. And static force acting on the backrest. In the qualifying test. Testing criteria of the static pressure exerted on the cantilever side and the wing stays static head. In the qualifying test. The tests of static force acts pressing down armrest. In the qualifying test. The tests of force exerted on the toggle switch and the force acting on the seat backrest. In the qualifying test. The force exerted on the test criteria. In passing the test Testing criteria regarding the impact on the seat cushion and the armrest. In the qualifying test. Testing criteria for lifting the one side and then released into freedom. In the qualifying test.

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