จำนวน Repository ( 1574 )
The social responsibility of students in the faculty of management technology Rajamangala University of Technology Isan surin campus
The purpose of this research is to study the social responsibility of students in the faculty of technology management Rajamangala University of Technology Isan Susin campus. The samples used are Faculty of Management students of Rajamangala University of Technology Isan Surin campus in 2011 315 students. Tools used such as questionnaire. Results showed that Most of the samples are studying in Information Systems Management Accounting and the others. The social responsibility family responsibilities about their care and concern for all members of the family and Responsibility to the nation about the performance of their duties as good citizens by carrying an ID card at the highest level. Responsibility friend about respect and honor all sincere friends Responsibility for the school about praise honor and university is very proud Responsibility to the community about participating and helping to organize the annual event in the community such as Songkran Buddhist etc. at a high level. Samples with different gender age and disciplines. With social responsibility Responsibility for the school difference is statistically significant at the 0.05 level. The other four areas. Such as Family Responsibilities Responsibility friend Responsibility to the community and responsibility to the nation. No difference. Samples at different levels of education and grade levels. With social responsibility the difference is statistically significant at the .05 level. The 5 areas.
Compensation of low frequency oscillation on power system using flexible ac transmission systems devices
This paper presents a study of low-frequency oscillations in compensated electric power systems with Flexible AC Transmission System of the power system frequency using PSAT Tool box To assist in the analysis of the stability of the system When the power transients in power systems is simulated By using standard IEEE 14 bus system as a case study. The Equipment that used to control the swing frequency of the is a flexible electrical power control devices or FACTS are two kinds of serial and parallel. The analysis showed that two models are compared with the time (Time Domain) and see the effect of the Eigen (Eigen Value) of the simulation results show work to see that controls are electrical flexible compensation. of low frequency oscillations in power systems in acceptable coordinates
Dry reforming of methane reaction for hydrogen and syngas production using cobalt catalysts and nickel-cobalt bimetallic catalysts
The cobalt catalysts (cobalt content by weight: 7% 10% and 15%) and cobalt-nickel bimetallic catalysts (cobalt-nickel content by weight: 3.5%-3.5% 5%-5% and 7%-7%) were studied in dry reforming of methane for hydrogen and syngas production. All catalysts were synthesized by the wetness impregnation method. The dry reforming of methane was carried out at 700oC atmosphere pressure using a mixture; CH4 and CO2 in ratio 1:1. The result showed that the good activity and stability depend on metal content in catalysts and the combined 2 metals as bimetallic catalysts. The optimum amounts of catalysts are 10wt% Co for mono-metallic catalysts 75%CH4 and 75%CO2 conversion and 7wt% Ni-7wt% Co for bimetallic catalysts 87%CH4 and 89%CO2 conversion.
Biomass potential of 56 accessions of leucaena as animal and biofuel feedstocks
Biomass yield between 56 accessions of leucaena were observed at Suwanvajokkasikit Field Crops Research Station Nakhonratchasima province. Randomized block design was used with 3 replications and 56 accessions as treatments. Leucaena was harvested at 2 years of age. Plant length wood yield branch yield and leaf yield were collected. Averaged plant length was in range of 6.84-11.87 meters with KU19 was highest in length. Five accessions that produced more wood yield were KU15 KU38 KU1 KU19 and KU10. Yield of these accessions were 24.07 21.96 16.71 15.36 and 14.95 t/rai with ash content at 1.43 1.04 1.76 3.66 and 1.34 percent respectively while native leucaena (KU20) had the lowest yield (0.91 t/rai). Branch yield among the accessions; KU1 KU10 KU38 KU 15 and KU19 had the greatest branch yield averaged 3.04 2.76 1.62 1.42 and 1.38 t/rai respectively. While top five in leaf yields were in KU15 KU56 KU45 KU39 and KU19 at 1.12 1.11 0.88 0.87 and 0.86 t/rai respectively.
Consumer acceptance and quality of ready to drink mahajanaka mango juice
Mahajanaka mango juice was health benefits and was a source of vitamins especially vitamin A in the form of beta carotene which a potent antioxidant. The purpose of this study was to consumer acceptance and quality of ready to drink mahajanaka mango juice the optimum ratio of mango pulp and water at 1:2 and 1:2.5 to 1:3. Result showed that the optimum ratio of mango pulp to water was 1:2. The mango juice contain of malic tartaric citric succinic and ascorbic acid at 0.005 0.053 0.180 0.005 and 0.138% respectively. The selected juice had 3.49 12.20oBrix 62.25 7.71 59.24 and 5.26 micrograms per gram of pH total soluble solids L * a * b * color values and beta-carotene content respectively. Sensory evaluation result revealed that the selected mango juice was accepted by 30 panelists which was medium like in color appearance odor taste and overall acceptability. Result of consumer test had shown that 97 % of 100 consumers from Lampang province were accepted and 65 % decided to buy the product.