จำนวน Repository ( 37 )
การศึกษาผลกระทบการสึกหรอจานเบรกแบบดิสก์ที่มีผลต่อระยะทางการเบรก
A disc brake is one of important auto parts for automotive industry which effected directly to life safety. The wear of brake rotor war affected to the brake efficiency. Lf the wear of rotor was discovered while operating the risk of accident shall be reduced. Therefore a study of disc wear affected to brake distance was the one of alternative for the brake efficiency testing. From this reason the aim of project is to test brake efficiency from the wear of brake rotor with the experiment conditions from JASO C 406 [1]. By the test conditions are focused on 3 cases of the wear: rotor little roughness rotor and abundant roughness rotor. The conditions of experiment consist of 100 200 และ 3000C on the rotor surface operating pressure 2 4 and 6 MPa initial speed before brake applied 50 and 80 km/hr. Based on the result of experiment was revealed that the braking distance deceleration and the brake ability with deceleration per unit of area. The result of experiment shown that the ordinary rotor at 6 MPa 300 0C and 50 km/hr. is given to the shortest of braking distance 69.7 m. Although the average of deceleration and the brake ability is take up on little roughness rotor. In case of the longest braking distance was occurred on the abundant roughness rotor. However from this study is discovered to the high temperature and the high pressure is significant to the braking distance shortened.
ปัจจัยด้านบุคคลที่มีผลต่อการเป็นองค์กรแห่งการเรียนรู้ (วินัยแห่งการเรียนรู้ 5 ประการ) ของมหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
This research has been aimed to study learning organization levels on five learning disciplines at Rajamangala University of Technology Phra Nakhon and individuals factors affecting the five learning disciplines. the samples were 400 Rajamangala University of Technology Phra Nakhon lectures and staff selected by stratified random sampling. Questionnaires were administered to collect data which were statistically analyzed and compared using the percentage standard deviation and hypothesis testing by t-test and One-Way ANOVA. the statistical significance level was set at the 0.05 The result of the study indicated that the level of the learning organization (five learning disciplines) of Rajamangala University of Technology Phra Nakhon (RMUTP) in the overall as well as the individual aspect was high. the highest aspect was mental models followed by systems thinking and team learning respectively. the hypothesis testing revealed that the personnel working at the organization with different educational levels positions and work tenure did not differ at the significance level of 0.05 in terma of RMUTP learning organiattion (five learning disciplines) Conclusinos from the hypothesis testing yielded that personal factors including work units deucational levels positions and work tenure rejected every hypothesis due to the fact that RMUTP employees no matter differences in terms of work units educational levels job titles or duration of operation were always active to improve their work ability. The research results also suggested that RMUTP personnel always kept on learning improving themselves and tracking down the information and knowledge. they were also able to transfer that through information technology stystem which could be accessed easily via various channels. strong teamwork was also an organizational culture. executives vision had been transferred to the staff members which could be seen form the overall highly-ranked results in every aspect. they commented that the knowledge management center was effective. moreover.every work unit had organized its own work content and stored it on the websites to be easily accessible for other involving units. the universith encouraged the staff by giving rewards to any outstanding units for their best practices as this could signify as a model for other units to apply the knowledge in their respective departments for achieving continuously sustainable learning organization in the future.
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.
เทคนิคการหลอมภาพมัลติสเป็คทรัลกับภาพแพนโครเมติคด้วยวิธีพีซีเอร่วมกับดิสครีตเว็บเล็ตอัลกอรึทึม
The data fusion is implement to take the survey data remotely from difference sources and have various looks to be combined to get a new agent. To get better quality of data we will present a method of fusion by wavelet transform with IHS Transformation method or PCA Transformation method. From the results showed that both IHS and PCA Transformation method able to be gotten high quality but the specifications of wave from damage is different.
ปัจจัยที่ส่งผลต่อการเปิดเผยข้อมูลทางการบัญชีตาม TFRS บริษัทกลุ่มธุรกิจพลังงานและสาธารณูปโภค ในตลาดหลักทรัพย์แห่งประเทศไทย
This research aim to study disclosure of accounting comply with TFRS were collected from Factors affecting disclosure of accounting comply with TFRS : Case Study the listed Companies in the Energy and Utilities Section in stock exchange of Thailand. The data 24 companies by using annual Financial Statement and Notes to Financial Statements. From 2009-2013 fiscal year. Statistical tools use for analyzing is multiple regression analysis at 0.001 and 0.05 significant level. The results Found that company size capital structure and year of changing to Financial Reporting Standards. Correlated with the level of disclosure at the 0.01 significant level. Furthermore The size of the audit firm correlated with the level of disclosure at the 0.05 significant level. The results suggested that the Changes from accounting standards to financial reporting required to disclose more information.