จำนวน Repository ( 1852 )

การรับรู้และการจดจำสื่อโฆษณากับการตัดสินใจซื้อเครื่องสำอางประทินผิว  : กรณีศึกษาผู้บริโภคในกรุงเทพมหานคร
การรับรู้และการจดจำสื่อโฆษณากับการตัดสินใจซื้อเครื่องสำอางประทินผิว : กรณีศึกษาผู้บริโภคในกรุงเทพมหานคร

Cosmetics current role a step along the way is. Media that comes with the product. Researchers are interested in education awareness and recognition with advertising media buying decisions cosmetic skin care : a case study of consumers in Bangkok. The purpose of the research was to determine the relationship between population factors that influence the decision to buy cosmetics skin care products. The quantitative research questionnaires were used to collect data. Sample of 385 people living in Bangkok. And a quota sample using a specific classification by age group. By focusing on the awareness and recognition of the media. The results showed that the decision to buy cosmetics skin care. With a focus on advertising. TV Radio media magazines newspapers online media and media at the point of purchase moderate (34.00) analysis test t-test to test the F-test and test different pairs by way of (Scheffe Method) found demographic factors and the cost to buy cosmetics and skin care. Age education occupation and income per month. As a result the decision to buy it. From measurements with statistics Eta found that the perception of the media are related to the cost of purchasing cosmetics skin care at a low level (0.94) and measurements with statistics Eta found recognition. Media are related to the cost of purchasing cosmetics skin care is low (0.11) were also suggested. Entrepreneurs do not have the media hype

2560
พฤติกรรมการมีวินัยในตนเองของนักศึกษาคณะบริหารธุรกิจ มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
พฤติกรรมการมีวินัยในตนเองของนักศึกษาคณะบริหารธุรกิจ มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร

The research studies self-discipline behaviour of business administration student of Rajamangala University of Technology Phra Nakhon Pha Nakorn. There are 2 main points in objective: 1) To study the power to predict student’s self-discipline behaviour by psychological characteristic psycho-situational characteristic and social characteristic in collected group and subgroups. 2) To examine the interaction between psychological characteristic psycho-situational characteristic and social characteristic that relates to self-discipline behaviour in collected group and subgroups. The survey of 400 undergraduates was conducted to assess self-discipline behaviour of students. Moreover there are 6 independent variables in this research including 2 variables of psychological characteristic (future orientation and self-control and achievement motivation) 2 psycho-situational characteristic variables (perceived self-efficacy and attitude toward self-discipline behaviour and 2 variables of social characteristic (good role model from family and supportive rearing while the dependent variable is self-discipline behaviour. Basic statistics multiple regression analysis and two-way ANOVA were used to analyse. All of the analysis was also used in both collected group and subgroup according to socio-demographic characteristic. The results of this research are as follow: 1. 6 variables in term of psychological characteristic psycho-situational characteristic and social characteristic can predict self-discipline behaviour in collected group accounting for 59.5 per cent while subgroups are between 32.1 to 44.8 per cent. The most prediction is female group. Furthermore the most significant predicting factor is attitude toward self-discipline behaviour which is in equation in collected group and subgroups and it is the first significant predicting factor in collected group and male group as well as the student group who study in first and second years in bachelor’s degree. 2. Students who have high level of future orientation and self-control and good role model from family will have great self-discipline behaviour. In fact it is found that future orientation and self-control and good role model from family disconnect with student’s self-discipline behaviour at the level of significance of 0.05. However when analysing each independent variable self-discipline behaviour varies with future orientation and self-control. It appears on collected group and 4 subgroups which consist of male group female group the first and second year undergraduate group and the third and fourth year undergraduate group. In addition good role model from family influences self-discipline behaviour that can be found in collected group and 4 subgroups such as male group female group the first and second year undergraduate group and the third and fourth year undergraduate group. 3. The students who have high achievement motivation and supportive rearing are estimated to have great self-discipline behaviour. Whereas it is apparent that achievement motivation and supportive rearing do not interact with self-discipline behaviour at the level of significance of 0.05. On the contrary when considering each independent variable achievement motivation affects self-discipline behaviour in collected group and subgroups (male group female group the first and second year undergraduate group and the third and fourth year undergraduate group). At the same time self-discipline behaviour is also determined by supportive rearing that presents in both of collected group and subgroups which include male group female group the first and second year undergraduate group and the third and fourth year undergraduate group.

2560
ความสัมพันธ์เชิงสาเหตุของรูปแบบภาวะผู้นำและความฉลาดทางสังคมที่มีอิทธิพลต่อรูปแบบการจัดการความขัดแย้ง ของผู้บริหารระดับสูงในองค์การธุรกิจที่ถูกจัดอันดับใน 100 อันดับแรกของตลาดหลักทรัพย์แห่งประเทศไทย
ความสัมพันธ์เชิงสาเหตุของรูปแบบภาวะผู้นำและความฉลาดทางสังคมที่มีอิทธิพลต่อรูปแบบการจัดการความขัดแย้ง ของผู้บริหารระดับสูงในองค์การธุรกิจที่ถูกจัดอันดับใน 100 อันดับแรกของตลาดหลักทรัพย์แห่งประเทศไทย

งานวิจัยเรื่องความสัมพันธ์เชิงสาเหตุของรูปแบบภาวะผู้นำและความฉลาดทางสังคมที่มีอิทธิพลต่อรูปแบบ การจัดการความขัดแย้งของผู้บริหารบริาทที่จดทะเบียนในตลาดหลักทรัพย์แห่งประเทศไทย มีตถุประสงค์ของการวิจัยคือ 1) เพื่อพัฒนาโมเดลความสัมพันธ์เชิงสาเหตุของรูปแบบภาวะผู้นำแห่งการเปลี่ยนแปลงและความฉลาดทางอารมณ์ที่มีอิทธิพลต่อรูปแบบการจัดการความขัดแย้งของผู้บริหารบริษัทที่จดทะเบียน ในตลาดหลักทรัพย์แห่งประเทศไทย และ 2) เพื่อตรวจสอบความสอดคล้องของโมเดลที่พัฒนาขึ้นกับข้อมูลเชิงประจักษ์ ผลการวิจัยพบว่า โมเดลความสัมพันธ์เชิงสาเหตุของรูปแบบภาวะผู้นำแห่งการเปลี่ยนแปลงและความฉลาดทางอารมณ์ที่มีอิทธิพลต่อรูปแบบการจัดการความขัดแย้งของผู้บริหารบริษัทที่จดทะเบียนในตลาดหลักทรัพย์แห่งประเทศไทยไม่มีความสอดคล้องกับข้อมูลเชิงประจักษ์ อย่างไรก็ตามผลการวิจัยพบว่า รูปแบบภาวะผู้นำแห่งการเปลี่ยนแปลงมีอิทธิพลทางตรงเชิงบวกต่อความฉลาด ทางสังคมและรูปแบบการจัดการความขัดแย้ง รูปแบบภาวะผู้นำแห่งการเปลี่ยนแปลงมีอิทธิพลทางอ้อมเชิงบวกต่อรูปแบบการจัดการความขัดแย้งผ่านความฉลาดทางสังคม และความฉลาดทางสังคมมีอิทธิพลทางตรงเชิงบวกต่อรูปแบบการจัดการความขัดแย้ง

2560
การใช้เถ้ากะลามะพร้าวเป็นมวลรวมน้าหนักเบาในคอนกรีตบล็อกเพื่อการประหยัดพลังงาน
การใช้เถ้ากะลามะพร้าวเป็นมวลรวมน้าหนักเบาในคอนกรีตบล็อกเพื่อการประหยัดพลังงาน

The objectives of this research are to study the production step proper ratio physical properties mechanical properties thermal insulation and sound insulation efficiency of concrete blocks mixed with coconut shell ash. The ratios of concrete block mixed with coconut shell ash include Portland cement type1: quarry dust: coconut shellash which equal to 1: 6.8: 0.2 1: 6.7: 0.3 1: 6.6: 0.4 1: 6.5: 0.5 and 1: 6.4: 0.6 by weight. Water per cement ratio are 0.6 by weight. The concrete block samples were casted by the general production as same as the ordinary concrete blocks and were tested follow TIS.58. From the results the best amount of coconut shell ash which put into concrete block is 1: 6.7: 0.3 of ratio. The proper ratios of coconut shell ash can decrease the density or weight and increase the thermal insulation and sound insulation efficiency of concrete blocks. However the high amounts of coconut shell ash effect to decrease the mechanical properties concrete blocks that are lower than TIS.58 standard.

2560
Molecular weight polyethylene composites for high wear resistance under temperature changes and lubricant to apply for use in industrial machinery parts
Molecular weight polyethylene composites for high wear resistance under temperature changes and lubricant to apply for use in industrial machinery parts

The objective of this research is a study to determine optimum forming condition of semi-finished bulk UHMWPE by using ram extruder that obtain maximum yield strength and minimum wear rate for apply to use in area of medical and mechanical application. Experimental extrusion specified forming condition consists of the temperature of 140 150 and 160 ºC and pressure of 3 5 8 and 10 MPa with the temperature exposure time of 30 minutes. After known optimum forming condition of UHMWPE powder thus forming UHMWPE filled with different kind of filler to study and determine optimum weight fraction of various types of filler that affect onto wear resistance property of UHMWPE composites. Result extruded condition at the temperature of 1 5 0 ºC under pressure of 5 MPa with exposure time of 30 minutes is an optimum extruded condition due to specimen shown a maximum yield strength ultimate tensile strength and elongation of 20.43 ± 1.21 MPa 28.33 ± 1.53 MPa and 285.60 ± 6.41 % respectively and obtain minimum wear rate of 3.02  10-9 ± 5.27  10-10 mm3/Nm. Its mechanical properties and wear resistance property higher than imported bulk UHMWPE by 23.3 % and 4.75 times respectively due to the formation of cross-linking are occurred in polymer chain and also its degree of crystallinity is high equal to 61.52%. For bulk UHMWPE IR-spectrum shown a variation peak of carbonyl group (C=O) are occurred that that it indicated the oxidation reaction at the end of polymer chain and tis degree of crystallinity is equal to 53.31% which result to decrease strength of polymer. In the case of UHMWPE filled with filler optimum weight fractions of various types of filler are as follows. 1. The filling of 0.3 wt. % Al2O3 particle size 0.05 μm shown yield strength ultimate tensile strength and elongation of 23.17 ± 3.35 MPa 34.78 ± 2.80 MPa and 229.00 ± 6.09% respectively that its mechanical properties was increased by 18.55% (increasing of ultimate tensile strength). For the wear rate is equal to 2.09  10-9 ± 3.39  10-10 mm3/Nm or its wear resistance was increased by 1.44 times in compared with initial bulk UHMWPE. 2. The filling of 0.4 wt. % Al2O3 particle size 0.3 μm shown yield strength ultimate tensile strength and elongation of 21.93 ± 0.51 MPa 25.40 ± 0.69 MPa and 267.67 ± 22.03% respectively that its mechanical properties was increased by 11.54% (increasing of ultimate tensile strength). For the wear rate is equal to 2.32  10-9 ± 4.78  10-10 mm3/Nm or its wear resistance was increased by 1.30 times in compared with initial bulk UHMWPE. ฉ 3 . The filling of 0.4 wt. % Al2O3 particle size 1 μm shown yield strength ultimate tensile strength and elongation of 23.93 ± 1.89 MPa 26.77 ± 1.20 MPa and 296.54 ± 7.51% respectively that its mechanical properties was increased by 5.83% (increasing of ultimate tensile strength). For the wear rate is equal to 2.14  10-9 ± 3.16  10-10 mm3/Nm or its wear resistance was increased by 1.41 times in compared with initial bulk UHMWPE 4 . The filling of 4 wt. % Al2O3 particle size 5 μm shown yield strength ultimate tensile strength and elongation of 22.57 ± 2.01 MPa 26.31 ± 3.11 MPa and 136.66 ± 11.67% respectively that its mechanical properties was increased by 7.68% (increasing of ultimate tensile strength). For the wear rate is equal to 2.37  10-9 ± 5.71  10-10 mm3/Nm or its wear resistance was increased by 1.27 times in compared with initial bulk UHMWPE

2560