The major purpose of the study was to determine duties of selected junior high school principals in Indiana to accomplish identified responsibilities for instructional evaluation and improvement, staff evaluation, and public relations.Methods and procedures used to determine the duties of junior high school principals in the identified areas involved construction of a focused interview guide based on the survey of research for the study. The population to be interviewed included six junior high school principals, ten teachers and ten students from each of the six selected junior high schools. The responses were then organized by area and presented in three categories, responses of principals, perceptions of teachers, and perceptions of students relative to the duties performed by the principals.Conclusions were drawn from the findings of the study, and research reviewed as part of the study, and the experiences gained in conducting the study.Instructional Evaluation and Improvement1. Principals in general spent little time on program evaluation and improvement.2. Much of the responsibility for evaluation and improvement of the school program rested with the department chairmen.3. Teachers were involved mainly through the individual departments.4. The larger the school the less time the principal had time to devote to the program.5. It appeared principals delegated the responsibility for evaluation to department chairmen and relied on the judgment and evaluation recommended.6. Classroom visitation by the principal was limited to a few brief periods of time.7. The leadership function of the principal in motivating staff self-evaluation and improvement rested primarily on suggestions to the teachers rather than in-service programs.8. Orientation programs were classified by principals as in-service training.9. Principals did attempt to improve personal abilities and understandings of new approaches in education.10. Staff and students were seldom utilized in evaluation and changing the curriculum.11. Staff and students perceived the principal as involved in improving in instruction.Staff Evaluation and Improvement1. Teachers perceived the principal as one who would help with problems when requested.2. Teachers perceived principals as undertaking the necessary duties for staff evaluation including limited classroom observation, written evaluations, and conferences.3. Teachers perceived principals as utilizing department chairmen in the evaluation process.4. Teachers viewed the principal as available to aid the teacher in educational problems.Public Relations1. Principals did little to utilize the staff or students in a specific public relations program for the school.2. The staff and students perceived the principal as doing an adequate job in creating a favorable public relations attitude toward the school.3. Principals were perceived as providing a communication system within the school.4. Parent contact with the school was limited to infrequent visits.5. Principals were active within the community civic organizations.Recommendation for Further StudyRecommendations for further study were gained from the limitations placed on the present study.1. Expand the present study to include more schools to achieve a broader view of the duties undertaken by the principal.2. Study the differences between what the authorities in the field of educational administration advocate relative to the duties of the principal and what duties principals actually do.3. Study the causes and reasons why principals are not completing the tasks indicated by the authorities in the field of educational administration which principals should be doing.

This study investigated the ego development of a group of dropouts who had returned to school. The specific purpose was to explore and evaluate, systematically, the ego development of the former dropouts, and to compare their levels of ego development and their school performance to a group of students who were considered to be at risk to drop out of school. A group of students who were not considered to be at risk to drop out served as a control group. Seventeen high school students served as the subjects in this investigation. The main sources of data were: the results of the Washington University Sentence Completion Test for Ego Development that was developed by Dr. Jane Loevinger, grade and attendance reports, and interviews with the students and their teachers. The findings indicated that while the former dropouts had levels of ego development that were higher than the at risk subjects, the difference was not great enough to be statistically significant. The interviews were examined for indications of the subjects' levels of ego development in the manner in which they spoke about their experiences. The limitations of this investigation are considered, and some suggestions for further research are offered.

Fuel flexibility in gas turbines is of particular importance because of the main fuel source, natural gas. Blends of methane, ethane, and propane are big constituents in natural gas and consequently are of particular interest. With this level of importance comes the need for baseline data such as laminar flame speed of said fuels. While flame speeds at standard temperature and pressure have been extensively studied in the literature, experimental data at turbine-like conditions are still lacking currently. This thesis discusses the theory behind laminar flames; new data acquisition techniques; temperature and pressure capability improvements; measured flame speeds; and a discussion of the results including stability analysis. The measured flame speeds were those of methane, ethane, and propane fuel blends, as well as pure methane, at an elevated pressure of 5 atm and temperatures of 298 and 473 K, using a constant-volume, cylindrical combustion vessel. The current Aramco mechanism developed in conjunction with National University of Ireland Galway compared favorably with the data, while the literature data showed discrepancies at stoichiometric to rich conditions. An in-depth flame speed uncertainty analysis yielded a wide range of values from 0.5 cm/s to 21.5 cm/s. It is well known that high-pressure experiments develop flame instabilities when air is used as the oxidizer. In this study, the hydrodynamic instabilities were restrained by using a high diluent-to-oxygen ratio. The thermal-diffusive instabilities were inhibited by using helium as the diluent. To characterize this flame stability, the Markstein length and Lewis number were calculated for the presented conditions. The resultant positive Markstein lengths showed a low propensity of flame speed to flame stretch, while the larger-than-unity Lewis numbers showed the relatively higher diffusivity of helium to that of nitrogen.

The high speed deformation behavior of a commercially available dual phase (DP) steel was studied by means of split Hopkinson bar apparatus in shear punch (25m/s) and tension (1000s-1) modes with an emphasis on the influence of microstructure. The cold rolled sheet material was subjected to a variety of heat treatment conditions to produce several different microstructures, namely ferrite plus pearlite, ferrite plus bainite and/or acicular ferrite, ferrite plus bainite and martensite, and ferrite plus different fractions of martensite. Static properties (0.01mm/s for shear punch and 0.001s -1 for tension) of all the microstructures were also measured by an MTS hydraulic machine and compared to the dynamic properties. The effects of low temperature tempering and bake hardening were investigated for some ferrite plus martensite microstructures. In addition, two other materials, composition designed as high strength low alloy (HSLA) steel and transformation induced plasticity (TRIP) steel, were heat treated and tested to study the effect of alloy chemistry on the microstructure and property relationship. / A strong effect of microstructure on both static and dynamic properties and on the relationship between static and dynamic properties was observed. According to the variation of dynamic factor with static strength, three groups of microstructures with three distinct behaviors were identified, i.e. classic dual phase (ferrite plus less than 50% martensite), martensite-matrix dual phase (ferrite plus more than 50% martensite), and non-dual phase (ferrite plus non-martensite). Under the same static strength level, the dual phase microstructure was found to absorb more dynamic energy than other microstructures. It was also observed that the general dependence of microstructure on static and dynamic property relationship was not strongly influenced by chemical composition, except the ferrite plus martensite microstructures generated by the TRIP chemistry, which exhibited much better dynamic factor values. This may suggest that solid solution strengthening should be more utilized in the design of crashworthy dual phase steels.

Typescript. / Thesis (Ed. D.)--University of Hawaii at Manoa, 1990. / Includes bibliographical references (leaves 164-170) / Microfiche. / xiv, 170 leaves, bound ill. 29 cm

Thesis (Ed. D.)--University of South Carolina, 2006. / Includes bibliographical references (leaves 176-186). Also available online (PDF file) by a subscription to the set or by purchasing the individual file.

Thesis (Ed. D.)--University of South Carolina, 2006. / Includes bibliographical references (leaves 176-186).

Thesis (M.S.)--Rochester Institute of Technology, 2007. / Typescript. Includes bibliographical references (leaves 58-60).

Thesis (Ph.D.)--Tufts University, 1989. / Submitted to the Dept. of Physics. Includes bibliographical references (leaves 192-204). Access restricted to members of the Tufts University community. Also available via the World Wide Web;

Thesis (Ph. D.)--Ohio State University, 2007. / Title from first page of PDF file. Includes bibliographical references (p. 185-190).