จำนวน Repository ( 62 )

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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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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ผลิตภัณฑ์ลดความชื้นที่เป็นมิตรต่อสิ่งแวดล้อมด้วยการใช้สารสกัดซิลิกาใบไผ่
ผลิตภัณฑ์ลดความชื้นที่เป็นมิตรต่อสิ่งแวดล้อมด้วยการใช้สารสกัดซิลิกาใบไผ่

Silica is an amorphous and nanometer scale voids and porous form of silicon dioxide. As long known for its high specific surface area synthetic silica has been used to adsorb water readily and applied for keeping many biological products dry protecting equipment from moisture damage. In the study the researchers have interested in making the tentative eco-friendly dehumidifying products based on the silica extract from bamboo leaves. The extraction procedures were performed by boiling dry bamboo leaves with various concentrated hydrochloric acid (HCl) at 1 2 3 and 4 M then burning them at 650oC for 4 hr before analyzing the purity of the biosilica with the X-ray Fluorescence Method. The results showed that the highest purity of the biosilica sample at 96% could be obtained after treated with 4 M HCl comparing with the control commercial silica. By hygroscopic test the extracted biosilica with 2 M HCl showed the highest moisture absorption properties close to the commercial silica. While the highest adsorption capacity was found in the biosilica sample treated with 3 M HCl. The dehumidifying efficiencies of all HCl treated biosilica power were not much different comparing to the commercial silica gel. Instead of using synthetic silica therefore this high environmentally friendly and cheaper biosilica from bamboo leaves can preferably be decent and further applied in green industry.

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