จำนวน Repository ( 110 )
การลดปริมาณการปล่อยก๊าซเรือนกระจกด้วยเทคโนโลยีการผลิตที่สะอาด
This study aims to determine the management approach for organization greenhouse gas emissions reduction and decreased them from the production per unit in a case study of food and beverage company. Due to the cleaner technology was applied for greenhouse gas emissions reduction within scope 1 (Fuel Oil) and scope 2 (Electric Power). Greenhouse gas emissions shows a positive prospect with downward trend from 1.73 TonCO2e/unit in year 2016 to 1.44 TonCO2e/unit in year 2017 (16.8%). In addition it less than greenhouse gas emitted in year 2015 (1.59 TonCO2e/unit or 9.4%). These Results reveal that cleaner technology is an appropriated method for greenhouse gas emissions reduction in Food And Beverage Company.
การรับแรงกระแทกของคอนกรีตผสมดินขาวและเถ้าลอย
This research to study the possibility of material pozzolan as binder by replacment cement by fly ash (FA) and meta kaolin (MK) some for testing compressive strength flexural strength and impact strength of concrete vary the ratio of water to binder (w / b) of 0.40 and 0.45 and the amount of fly ash to replace cement some 15 % 30 % MK and 35% for 10% 15% and 20% by weight of cement. The sample consisted of a cylinder diameter of 10 x 20 cm beam sizes 10 x 10 x 40 cm and 4 x 4 x 16 cm from the test results showed that the concrete samples at 28 days and w/ b of 0.40 to greater than 0.45 all mixed. the compressive strength by replacing cement with FA increase up to 30 % compression of 382 ksc higher than the 20 percent replace by MK were equal to 354 ksc and 32.48 ksc compared to replace cement with FA 15 % is equal to 31 ksc 30% were equal to 30 ksc and 45% were equal to 23.85 ksc while the MK was replaced by 10% were equal to 40.10 ksc higher than to 15% and 20% respectively. The control sample was replaced with MK by 10% is equal to 111 joules maximum replaced by fly ash more than 30% were equal to 110 joules and MK were 15% fly ash 15 and 45 percent respectively.
อิทธิพลของของวัสดุปอซโซลานโดยระบบสามประสานต่อกำลังและความต้านทานคลอไรด์ของคอนกรีต
This objective research to study the possibility of used pozzolan material in the ternary blend by fly ash metakaolin and silica powder by replacement cement partially on the strength and resistance to chloride migration. Consideration of concrete with compressive strength in the range of 240-350 kg per sq. cm by varying the ratio of water/binder (w/b) there are three values are 0.4 0.45 and 0.50 and variable amounts of replacement cement some. The ternary blend of the fly ash metakaolin and silica powder of percentage of 0 2.5 5 10 15 20 and 25 by weight of cement. and the control specimens (w/b) without contain fly ash kaolin and silica powder the slump test in the range of 3-5 cm and the use superplasticizer to control the slump test of concrete. By casting specimens of cylindrical diameter 10x20 cm cube 10x10x10 cm and the beam size 10x10x35 cm after curing 28 days and test compressive tensile and flexural strength of concrete all specimens each ingredient by Chloride Migration Test method and the results showed that concrete is a mixture with pozzolan such as silica powder metakaolin and fly ash with amount increase replacement. The increase will help improve the quality of the concrete physical properties. The increased of compressive and Tension strength as the percentage increase especially to replacement cement increased by fly ash metakaolin and silica powder reduces the penetration of chloride in concrete respectively As a result of the porosity of the concrete with lower amounts of tightness concrete has increased
อิทธิพลของคุณสมบัติเชิงกลของใยสังเคราะห์ต่อคานปอซโซลานคอนกรีต
This research aims to study the possibility of steel fibers plastic fiber (polypropylene) fly ash and metakaolin mixed into the concrete. The concrete used in the research of the w / c 0.42 By 0.5 percent in the volume of steel fiber and poly propylene fiber in the amount of 0.25 percent by weight of the concrete. Concrete example of this test consisted of plain concrete(OPC).Concrete mixing materials pozzolan fly ash mixed plastics synthetic fibers of the type poly propylene fiber(FA/PP)concrete mixing materials pozzolan fly ash mixed plastics synthetic fibers of the type steel fibers (FA/ST) concrete mixing materials pozzolan meta kaolin mixed plastics synthetic fibers of kind polypropylene fiber(MK/PP) and concrete mixing materials pozzolan meta kaolin mixed plastics synthetic fibers of the typesteel fibers (MK/ST) by casting a cylindrical sample size 10 x 20 cm. Sample size 10x10x10 cm. cube and sample size 10x10x35 cm. beam. After 28 days and cure water concrete examples to test the strength of the pull compressive strength and flexural strength. And to test the movement of chloride through the concrete with Chloride Migration Test. Then bring the strength of the pull compressive strength flexural strength and the chloride permeability of concrete. Bringing concrete materials pozzolan mixed with synthetic fibers to develop the quality of concrete with improved efficiency and also reduces the porosity of the concrete. And permeability of chloride formed in the concrete (Only in landscape with the sea). The test can tell. Concrete mixing materials pozzolan with synthetic fibers to make a significant impact on the properties of concrete is improved as well. Depending on the type of polyester and the amount of material to pozzolan blended.
พฤติกรรมการบริโภคก๋วยเตี๋ยว และความพึงพอใจต่อผลิตภัณฑ์ของร้านจำหน่ายก๋วยเตี๋ยว ของบุคลากร ศูนย์ราชการเฉลิมพระเกียรติ 80 พรรษา 5 ธันวาคม 2550
The purposes of this study were 1.The purpose is to study the consumption of noodles personnel Government Complex 80th December 5 2550. 2.To determine your satisfaction with the products of the noodle shops personnel Government Complex 80th December 5 2550. 3.To compare satisfaction with the products of the noodle shops personnel by sex age. Education level the average income per month sample used in the study. Customers noodle shop run by the Government Complex instruments used in the study was a questionnaire with the reliability ranged from 0.70 to 0.80. The statistics used to analyze the frequency percentage average standarddeviation and statistical t-test and F-test. Results found that consumers had a habit of consuming noodles. The factor affecting decision to consume any kind of noodles is the taste .The most popular type was pork noodles. Food most eaten with noodles were fresh vegetables. The number of people eating together was 4-6.The time most used for consumption was 11:01 - 13:00. The number of times consumed was 1-2 times per week. Each time most consumers consumed 1 bowl. Satisfaction difference were statistically significant at the 0.05 level by age and average income per month. Education did not affect difference in satisfaction.