Because school administrators play an important role in the management of schools to achieve their objectives effectively. This research aims to study leadership of school administrators factors relating to leadership leadership and relationship between leadership and factors affecting leadership of school administrators. The research design was based on the correlation research . The samples used in the study were 185 of the school administrators and deputy director. The research instrument was a questionnaire. Statistics used in data analysis were frequency percentage mean standard deviation and pearson correlation. Research results found that 1) The administrators of the schools in the secondary education area 1 had the form of four types of leadership. The results showed that the patterns of leadership reflected in the supportive leadership style. The highest average was followed by participatory leadership. Leadership focused on success. 2) The results of the study on the level of factors related to the leadership of the school showed that the four factors were the opinions of the target group. It is important to have leadership in mind. The average score on the highest level of leadership was followed by group characteristics organizational characteristics and external environment. And 3) the relationship between leadership and related factors of the leadership of the school administrators was found to be positively correlated in all aspects.

The research project investigated the effects of CoO additive on dielectric ferroelectric physical and mechanical properties of modified Bi0.5(Na0.81K0.19)0.5TiO3 ceramics were investigated. The samples were synthesized by solid state reaction technique where powders were calcined at 850 °C for 4 h and ceramics were sintered at 1050 °C for 4 h which difference heating rate controlled i.e. 100 300 and 600 °C/h for. The ceramics of BNKT/x wt.% CoO was added CoO by various x=0.00 0.10 0.20 0.30 0.60 and 0.90. Phase formation was determined by X-ray diffraction technique (XRD). The X-ray diffraction analysis of the ceramics suggests that all samples exhibited a perovskite structure. The dielectric properties under room temperature and various temperatures were also determined. Dielectric measurement data showed that the additive and heating rate controlled influenced dielectric constant and dielectric loss. Furthermore the hysteresis loop behaviors slightly changed with increasing the CoO contents.

The objective of this work was to study the adsorption efficiency of natural clay and its surface modified with manganese oxide for removal of Pb( II) ion. The adsorption of Pb( II) from aqueous solution onto raw natural clay (NC) and manganese oxide-modified natural clay (MnO-NC) was evaluated based on batch experiment. The adsorption efficiency of MnO-NC onto Pb( II) was investigated as a function of the initial pH of 6 equilibrium time of 30 min adsorbent concentration of 5 g/L and initial concentration of Pb(II) solution in the range of 50- 500 mg/L. The adsorption isotherms of Langmuir Freundlich and Dubinin-Radushkevich were used to describe the equilibrium isotherm. It is observed that the data from MnO-NC adsorbents fitted well to the Langmuir isotherm. The maximum monolayer adsorption capacities of MnO-NC were estimated as 38. 76 mg/ g. By comparing with NC the amount of Pb( II) adsorbed onto MnO-NC was more than NC by about 38 times under the optimized adsorption condition. According to Dubinin-Radushkevich isotherm the adsorptive mechanism of Pb(II) onto MnO-NC was chemisorption whereas the NC showed the mechanism as physical in nature. The kinetic studies of Pb( II) demonstrated that the adsorption of Pb( II) onto MnO- NC and NC adsorbents followed a pseudo second- order model with a good correlation. The adsorption mechanism was processed via chemical ion exchange between H+ and bonded MnO groups and Pb(II) ions in solution.

Changing in the present era led Rajamangala University of Technology Phra Nakhon needed to emphasize on its policies to comply with the national policy related to the creative ideas for the development of innovations internet learning forming Smart Farmer & Smart Startup and the specialist labors. Thus this was for the Thai society to step into the “innovation driven economy.” In response to the national policy it aimed at the university development toward basic changes in persons and organization adjustment to become university 4.0 together with the academic line to answer for the needs of problem solution and develop to become equivalent with other universities. According to this significance the researcher interested to study on the relationship among transformational leadership the follower’s adjustment and the follower’s performance. The research objectives were 1) to study on the relationship between the transformational leadership and the follower’s adjustment and; 2) to study on the relationship between the follower’s adjustment and the follower’s performance. Thus this would be used as the guideline to develop the administrative tasks in the organization and any units for the effectiveness and efficiency. This quantitative research adopted questionnaire as the research instrument. Data was collected from 270 samples. Data analysis was done through the use of CFA to seek for the relationship of the variables and the hypotheses were tested by the Structural Equation Modeling: SEM. The result of the research shows that transformational leadership with ideology forming inspiration intellectual stimulation and individual consideration had lesser than 5 p-value in all aspects. Thus it can be concluded that all 4 forms of the transformational leadership had the positive relationship with the follower’s adjustment while the follower’s adjustment also had the positive relationship with the follower’s performance. Therefore according to the research results the organization leader shall forsee and aware on the significance of leadership in form of leader with ideology vision ability in emotional management and good ethic motivated for the work inspiration forming attitude and stimulate the soul of followers to have creative ideas and new innovations amid the condition of changes in the present era.

The hybrid materials of lead sulfide with montmorillonite were synthesized by a solid-solid reaction between lead-exchanged montmorillonite and sodium sulfide at ambient condition. The hybrids were characterized by powder X-ray diffraction (XRD) thermogravimetric-differential thermal analysis (TG-DTA).The basal spacing of heat-treated lead sulfide-montmorillonite-sodium sulfide (200oC) was 1.20 nm. The formation of lead sulfide in the hybrid confirmed by the non-resolved absorption band and absorption onset at 328 and 508 nm respectively for heat-treated lead sulfide-montmorillonite-sodium sulfide. The dramatic blue-shifted in the absorption onset relative to that of bulk was observed.The heat treated lead sulfide-montmorillonite-sodium sulfide showed an emission peak at 367 nm. The removal of adsorbed water resulted in the increasing intensity of the hybrid.