백서의 실험적 치아이동시 osteonectin 및 osteocalcin의 발현

배성렬,김상철 대한치과교정학회 1998 대한치과교정학회지 Vol.28 No.5

백서 전치에 견인력을 가해 비교원단백인 osteonectin 및 osteocalcin의 발현 및 분포 변화를 면역 화학적 염색을 통하여 다음과 같은 결과를 얻었다. 1. 견인력을 가한 후 28일째까지 견인측의 치주인대 섬유는 신장되어 있었고, 압박측의 치주인대 섬유는 압축되어 있었으며 섬유의 배열이 완전히 회복되지 않았다. 2. 대조군의 상아질과 백악질, 골세포에서의 osteonectin 발현은 경미하였지만 조상아세포, 치조골 기질에서는 약양성의 발현을 보였다. 3. 대조군의 상아질, 치수, 치주인대 및 치조골 기질에서의 oseocalcin의 발현은 경미하였지만 치은, 골세포 및 백악질에서는 음성으로 관찰되었다. 4. 실험군의 상이질, 백악질, 치수, 조상아세포에서의 osteocalcin 및 osteonectin의 발현은 견인력 적용기간에 관계없이 대조군과 큰 차이가 없었다. 5. 실험군의 악간봉합에서 osteocalcin의 발현은 치아이동 7일째까지 대조군과 차이 없다가 14일째 이후에 약양성으로 유지되었으나, osteonectin은 7일째까지 증가되어 강양성을 보이다기 14일째부터 감소되었다. 6. 압박측 치주인대에서의 osteonectin의 발현은 대조군과 차이 없이 경미한 양상을 나타냈으나 견인측에서는 14일째까지 시간경과에 따라 증가되었으나 28일째에는 감소되었다. 7. 치주인대에서의 osteocalcin의 발현은 14일째까지 경미했으나 28일째에 견인측이 압박측보다 많은 강양성을 나타냈고 치아측 보다는 치조골측의 섬유가 더 강한 염색도를 보였다. 8. 치조골 기질에서의 osteonectin의 발현은 14일째까지 경미한 반응을 나타내다가 28일째에 중등도의 양성 발현을 보였으나 osteonectin의 발현은 4일째까지 대조군과 차이가 없다가 7일째부터 시간에 따라 증가하였으며 압박측보다 견인측에서 발현의 정도가 많았다. This study was designed to evaluate the expression of non-collagenous protein in periodontal tissue during the experimental movement of rat incisors, by LSAB(labelled streptavidine biotin) immunohistochemical staining for osteonectin and osteocalcin. Twenty seven Sprague-Dawley rats were divided into a control group(3 rats) and 6 experimental groups(24 rats) where 75g of force was applied from helical springs across the maxillary incisors. Rats of experimental groups were sacrificed at 12 hours, 1, 4, 7, 14 and 28 days after force application, respectively. And the tissues of a control group and experimental groups were studied immunohistochemically and histologically. The results were as follows: 1. Until 28days after force application, periodontal fibers had been strectched on tension side and compressed in pressure side of all the experimental groups, and the arrangement of periodontal fibers had not been recovered yet. 2. The expression of osteonectin in control group was rare in dentin, cementum and osteocyte, and was mild in odontoblasts and matrix of alveolar bone. 3. The expression of osteocalcin in control group was negative in gingiva, osteoblasts, osteocyte and cementum, and was rare in predentin, capillaries in pulp and periodontal ligament and the matrix of alveolar bone. 4. There was no difference in the expression of osteocalcin of osteonectin in dentin, cementum, pulp, odontoblasts, between of control and of experimental groups. 5. The expression of osteonectin in intermaxillary suture got the peak in 7-day and was declined after 14-day. The expression of osteocalcin remained in same degree since it became mild in 14-day. 6. The expression of osteonectin in pressure side of periodontal ligament of experimental group was rare, which was similar to control group. But in tension side, it was increased until 14-day after which was declined. 7. The expression of osteocalcin in periodontal ligament was rare in 12-hour to 14-day, but became severe in 28-day, which was greater in tension side than in pressure side, and in the periodontal fiber next to alveolar bone than tc tooth surface. 8. The expression of osteocalcin in alveolar bone was rare until 14-day in pressure side, but became moderate in 28-day. The expression of osteonectin was increased from 7-day by time dependency, which was greater in tension side than in pressure side.

분산모델을 이용한 진동 공급기내에서 고체 입자 혼합특성

朴相瓚,趙炳烈 충주대 2000 한국교통대학교 논문집 Vol.35 No.2

This work has been carried out to study the mixing characteristics of solid in vibrating feeder by dispersion model.The experimental variables were particle size, particle densities, vibration amplitude and vibration frequency etc.The system consisted of two particles such that fine particles were located on the top of the coarse particles before vibratory mixing had started.It was found from this study that dispersion model can effectively explain the mixing characteristics of solid in vibrating feeder.

학교자체평가모형개발을 위한 예비적 연구

김성렬 서원대학교 교육연구소 1995 敎育發展 Vol.1995 No.14

The purpose of this study was to search some guidelines for developing the new model of school self-evaluation. The characteristics of school organization were identified in terms of academic papers. And some evaluation models were reviewed for seeking their major viewpolints. Following guidelines were suggested: 1.The main purpose and function of school self-evaluation should be focused on formative evaluation. 2.Every member of school should be participated in evaluation activities as evaluation. 3.Every evaluator should only evaluate the areas related to him(her) self. 4.Every member of school should evaluate him(her)self. 5.School member's satisfaction on his(her) job and services received from others in school should be contained in evaluation content. 6.Goal-free evaluation should be used in school self-evaluation. 7.Non-comparative evaluation should be stressed. 8.More considerations should be given to extrinsic criteria than intrinsic criteria. 9.In evaluation areas, more weight should be given to process than input and output. 10.Evaluation methods should be simple and reasonable.

비정질(Fe1-xNix)77Si10B13 합금의 Mossbauer 효과 연구

홍성열, 유성초, 이효원 忠北大學校 1986 論文集 Vol.32 No.-

-본문참고-

학교의 학습조직화를 위한 연구

김성렬 서원대학교 교육연구소 1998 敎育發展 Vol.17 No.1

To Build School into Learning Organization It is important that school organizations become learning orgranizations to survive and thrive in the rapidly changing and unpredictable world. Learning organization supports both individuals and teams in continuous learning and improvement of their performance. This activity is energized by strong values and clear vision. A learning organization function close to its consumers. Reacts rapidly to change. Learns from others continuously questions its mode of operation. Accepts error and learns from it. A learning organization is able to maintain a process which ensures the creation of new know how. The learning organization is a community which is willing and able to question its habits and its outcomes. Thus providing creative conflict. Management can support the organizational strategies which build a learning organization by ① changing the image of learning. ② recognizing the need for learning. ③ developing systemic thinking. ④ improving the ability for unlearning, ⑤developing and encouraging the team learning, ⑥ supporting experimentation and risk-taking, ⑦ diagnosing the organizational problems, ⑧ learning from others, ⑨ sharing informations, ⑩ empowering employees, ⑪ being manager as leader encouraging organizational learning, ⑫ developing strong vision, and ⑬ getting rid of bureaucracy.

분무형 나트륨 연소시 온도 및 압력 특성 연구

박상찬,조병렬 충주대학교 1998 한국교통대학교 논문집 Vol.33 No.2

The high temperature liquid sodium as a coolant of liquid metal reactor is subject to be accompanied with fire in contact with the air when there is a leakage from piping and components. It is necessary to understand the characteristics of sodium fire with the various types of leakage. In connection with understanding the characteristics of sodium fire, safety technologies such as emergency measure against sodium fire, protection from fire and fire propagation, and extinguish could be reflected in design of the liquid metal reactor. It is very important to make an establishment of safety measure for sodium fire. Results of experimental data are as follows: 1) Peak gas pressure decreases significantly when the droplet diameter increases. This effect appears sharphly at high oxygen concentration. 2) Peak gas pressure increases almost linearly with initial oxygen concentration. This relationship is about 0.4 psi/O₂%. 3) Peak gas pressure is a linear function of the sodium quantity. This relationship is about 0.07 psi/gram of Na. 4) The sodium temperature exhibits no significant effect for average gas temperature and pressure.

學校組織의 效果性 提高와 再構造化를 위한 變革指向的 指導性

金成烈 서원대학교 교육대학원 1997 교육논총 Vol.1 No.-

It is important for successful performance of educational objectives to enhance the organizational effectveness of school. Some approaches for assessment of organizational effectiveness were reviewed. They are goal model, system resource model, participants' satisfation model, process model, and integrative model. And researcher's views of criteria of school organizational effectveness were examined. Restructuring schools may be considered as a way of enhancement of the school organizational effectiveness. Restructuring affects the schooling process in four fundamental ways. First, administrative authority is redefined. The school principal is perceived more as a facilitator of a democratic process of problem solving than as a manager or director of activities. Second, the teaching role is solving than as manager or director of activities. Second, the teaching role is changed. Teachers become the source of the urriculum, creating, modifying, or otherwise manipulating texts for the conditions of their particular classroom. Third, parents and communities are more actively involved in the schooling process, under the premise that different communities have different needs and a school should be responsive to them. Fourth, the role of central or district administration is substantially altered. Central office takes on the role fo an agency designed to aid individual efforts rather than to control them. In sum, restructuring is the attempt to improve student achievement and sense of civic responsibility by altering by goverance structures of public schooling. Restructuring empowers teachers, involves community, and localized curricula. Restructuring can occur at every level of schooling: from the classroom to the school, to the district, to the nation. Transformational school leaders pursue three fundamental goals: first, the stimulation and development of a collaborative climate within the school: second, contribution to the continuous professional development of the teachers; and, third, expansion of problem-solving capacity of the school. In order to expand the innovative capacity of schools, it is important to train school leaders on the aspects of transformational leadership. School leaders must develop in such a manner that they can disseminate a mission, do this in interaction with those involved in the school, and provide the necessary support for individual teachers. In this way leadership can be developed that contributes to a greater innovative capacity for the school.

액체폐기물 저장조 lagoon의 자연증발에 관한 연구

朴相瓚,趙炳烈 충주대학교 1997 한국교통대학교 논문집 Vol.32 No.2

The objective of this study is keeping up radiation safty control from uranium material contamination. Accordingly, the check and radiation monitoring of the lagoon has been perfomed periodically. The liquid waste in lagoon will be vaporized mostly into the atomosphere by spontaneity of natural pheonmeunm after about four years.The uranium concentration in the liquid waste of lagoon reduced considerably to about 40 ppm from 2 g/l quantities of this early year due to uranium precipitation.

생성이론의 교육행정학적 의의

김성렬 서원대학교 교육연구소 2001 敎育發展 Vol.20 No.1

There are major themes of emergence theory: (1) Contrary to the instrumentally rational view in which thought, gives rise to, and orients action, it is action that precedes conscious thought. Thus, organizational action, like all other forms of human action, is most appropriately conceived as a process of retrospective sense making, that is, of understanding what we have done after we have done it. (2) Social purposes emerge from social processes. processes, therefore, are not mainly instrumental means for the attainment of pregiven purposes ; rather, social processes are chiefly important insofar as they generate rather than achieve social purposes. (3) Change is more natural than stability in organizations. The chief problem for people in organizations is identify and remove the blockages to change, not try to create chance. (4) Organizations and organizing are logically, as well as historically, prior to politics. A trully democratic theory of politics can only be derived from a humane theory of organizing. (5) Responsible administrative action is fundamentally a matter of self-awareness, rather than one of assuring institutionally or objectively correct action. (6) Theorizing is a valuable means for facilitating self-aware action, both individually and organizationally. Organizing and theorizing entail essentially similar process in that both are sense-making activities enabling self-aware action. In educational administration, the impotance of democratic and responsible administration is suggested by the idea - concensus and self-awareness- of emergence theory. And the development of new educational administration theories which are not based by instrumental rationality is needed.

저수온기 돔류의 녹간증 혈청성분

최혜승,박승렬,정춘구 한국어병학회 2002 한국어병학회지 Vol.15 No.1

본 연구는 2001년 3월에서 5월까지 어류 해상가두리 양식장에서 사육하고 있던 찰돔, Pagrus major, 감성돔, Acanthopagrus schlegeli 및 돌돔, Oplegnathus fasciatuas과 육상에서 사육한 강담돔, Oplegnathus punctatus의 혈청성분을 분석하여 월동시기 이후에 돔류의 폐사원인으로 판단되는 녹간증을 나타내는 병어의 혈청생화학성분을 분석하여 생화학적특성을 조사하고자 하였다. 조사한 어류는 양식자의 그물 가장자리에서 균형을 잃고 옆으로 눕거나 뒤집어져 유영하는 개체들을 수집하여 혈액을 체취, 혈청을 분리한 후 생화학분석기(DRI-CAM 3000)으로 Albumin 의 9가지의 혈청성분을 분석한 결과, GOT, GPT값이 정상어에 비해 매우 높아 돔류의 정상적인 간기능에 장애가 생긴 것으로 판단되었다. 또한 Albumin, Ca, Glucose 값에는 뚜렷한 영향을 주지 않았으나 NH_3는 기준값에 비해 다소 높았다. TBIL, TP, UA는 정상어에 비해 매우 낮은 수치였다. 따라서 이러한 돔류에는 겨울철 저수온으로 사료를 정상적으로 먹지 못하여 어체에 영향결핍을 초래하고 있어 저수온 스트레스 등의 생태습성 부적합에 의하여 논간현상이 발생하는 것으로 판단되었다 A blood biochemical analysis was carried out for the serum of wintering sea bream (red sea bream Pagrus major, black sea bream Acanthopagrus schlegeli, rock bream Oplegenathus fasciantuas) with green liver syndrome. GOT and GPT were significantaly elavated in the diseased sea bream. The value of NH_3 was slightly higher but those of TBIL. TP and UA were lower than the control. But there were no differences in albumin. Ca and glucose between the diseased and the control. These results suggent that a green liver syndrome in the sea bream might be related with nutritional defects and the stress of low water temperature during the winter.