A. 高校 科學 (生物·地球科學) 및 數學科 探究學習의 評價模型 定立과 評價紙 開發

李相協,權炳奎,林在圭,孫文求,吳岱燮,楊洪準,梁承榮,姜用熙,林成圭,金正遠,金吉民,兪正在 경북대학교 과학교육연구소 1982 科學敎育硏究誌 Vol.6 No.-

Currently the evaluation of high school science and mathematics learning has been too much knowledge-centered without concerning the inquiring ability or scientific attitude. This study, therefore, was made for the purpose of establishing of evaluation model for high school science (biology and earth science) and mathematics learning and its evaluation items. In this paper, the research was done about three fields, biology, earth science and mathematics. 1. For the biology, the evaluation methods of inquiry learning were studied with the foreign references, and proper evaluation items were suggested. 2. For the earth science, after analizing 5 kinds of earth science textbook of current using in high school, essential 19 items were selected. 5 of them were tested in test group and control group, then, the results were analized. 3. For the mathematice, the teaching elements of「Set」and「Flow chart」in mathematics (Ⅰ) were selected and structured. Detailed teaching objects were established and evaluation items were introduced.

하프변환을 이용한 도형벡터 검출 알고리즘 개선

정양권,이정재 東新大學校 1997 論文集 Vol.9 No.-

영상에서 하프변환을 이용하여 타원형 경계를 검출하기 위해서는 5개의 파라미터를 결정해야 한다. 5차원 하프변환은 계산시간과 기억용량을 지나치게 낭비함으로 여기에서는 타원의 기하학적 성질을 이용한 2차원 이하의 하프변환만으로 기억용량과 계산시간을 크게 감소시키는 방법을 제안한다. 접선의 기울기로부터 중심파라미터와 나머지 2개 파라미터를 결정하고 이로부터 나머지 1개 파라미터를 결정해야 하는데 접선의 기울기가 모든 파라미터의 정확도에 크게 영향을 미치므로 접선의 기울기를 정확히 구해야 한다. 본 연구에서는 기울기를 구하고자 하는 접점 전후 몇 개의 화소를 2차 다항식으로 근사시켜 위치에 관계없이 필요한 점에서 기울기를 계산할 수 있는 방법을 제안한다. 제안된 알고리즘은 상당히 결손된 타원도 잘 검출 할 수 있었다. Elliptical boundaries detection using Hough Transform in an images is determined five parameters. Five-dimensional Hough Transform requires excessive computal time and memory capacity, In this paper we presented the method decreasing computal time and memory capacity using ellipses geometric properity for two-dimensional hough transform. we determined centre parameters and remain two parameters from tangent of slope, In this paper we proposed to compute the slope of method quadratic polynomial approximated hough transform, proposed algorithm well detected heavily occuluded ellipses.

호텔기업간 전략적 제휴의 성과에 영향을 미치는 요인에 관한 연구

양정영,정노재 문화관광연구학회 2002 문화관광연구 Vol.4 No.4

In the age of globalization and limitless competition, strategic alliance is a necessary strategic tool for business survival and internationalization. Theoretical study empirical research have been written under the framework of hotel company, but mainly have focused on the motives and forms of strategic alliance. The purpose of this study examine the determinants of partnership and performance in the strategic alliances among hotel companies. The results of this paper were found that relation oriented factors, operation oriented factors, strategy oriented factors, structure oriented factors each have a significant positive influences on the performance of strategic alliance.

고감도 CaSO_4 : Dy TL 분말의 TL 특성 및 고감도 TL 소자 제작 Dy TL powder and development of high sensitivity CaSO_4 Dy TL pellet

양정선,박재우,김두영,김장렬,장시영 제주대학교 방사능이용연구소 2002 연구보고 Vol.16 No.-

CaSO_4 : Dy series TL material is widely used as a personal dosimeter because of its high sensitivity to radiation. KAERI(Korea Atomic Energy Research Institute) has been produced CaSO_4 TL powder activated by Dy(rare earth elements) for several years and continually tried to improve its sensitivity having more than that of commercialized Teledyne CaSO_4 : Dy TL powders(USA). The TL powder is prepared by adding 0.1mol% Dy as an activator and by the acid evaporation method at first. And new step of washing this powder by distil-water is appended to separate non-crystalized powder in the initial crystal of CaSO_4 : Dy powder. CaSO_4 : Dy crystal TL powder which is produced by applying this new method has higer sensitivity than before washing step, and it has also higher sensitivity than that of Teledyne CaSO_4 : Dy TL powder. This CaSO_4 : Dy TL powder shows good TL characteristics such as dose response, energy response and fading. It is not possible to make solid detectors of only CaSO_4 : Dy TL phosphor without any binding material. Until now widely used sintered pellets. which were made from a mixture of CaSO_4 : Dy TL phosphor and Teflon. But, due to reduction in content of CaSO_4 : Dy TL phosphor in pellets(15∼20wt%) the TL sensitivity of pellets was reduced correspondingly. To variously use the CaSO_4 : Dy TL phosphor, research for preparing detectors by mixing CaSO_4 : Dy TL phosphor with different binding substances has been conductedThis paper described development of a new type of CaSO_4 : Dy pellets by using P-compounds as a bonding material(KCT-300), and compared the TL sensitivity with that of the commercialized Teledyne CaSO_4 : Dy pellets. Sensitivity of a new developed KCT-300 shows about 6 times than Teledyne ones, and can be used to measure very low radiation dose.

공공정보화사업의 사전평가 모형 구상 : 예산과의 연계와 사업 실효성 확보방을 중심으로

양재진,정명주,정진우 한국정보사회진흥원 2003 정보화정책 Vol.10 No.3

공공정보화사업은 다른 사업보다 파생효과가 큼 국가적으로 중요한 사업이나, 생애주기가 짧고 변화가 심한 정보기술을 활용하는 특성을 가지고 있어, 사업 실패의 가능성이 큰 문제를 안고 있다. 그리고 업그레이드 비용 등 유지비가 많이 소요되는 특징을 가기고 있다. 따라서 예산편성시부터 사전평가의 강화를 통해 국가자원의 낭비를 막고 동시에 사업의 효과성을 높이는 과제를 안고 있다. 이러나 인식하에, 본 논문은 사후평가 위주의 현행 한국 정보화사업평가체제의 문제점을 지적하고, 사전평가 도입의 필요성을 제기하였다. 구체적으로 정보화사업 2 단계 사전평가 모형을 제시하였는데, 제 1 단계 사전평가는 국가과학기술위원회의 국가연구개발사업 사전조정 모형을 바탕으로 예산과정과의 연계를 담보할 수 있는 제도화 방안을 다루었고, 제 2 단계 ㅅ전평가는 정보화지원사업의 구체화 단계에서 한국전산원의 역할을 바탕으로 사업계획서 검토와 사업자 선정에 관련된 제도화 방안을 다루었따. 제 1 단계 사전평가의 실효성 확보를 위하여 본 논문은 정보화추진위원회를 대통령 산하로 개편하고 정보화 예산심의 권한을 법제화할 것을 주장하였고, 기타 사전평가와 조정의 합리화 방안 등을 제시하였다. 제 2 단계 사전평가와 관련하여서는 대상사업과 전문기관의 인증문제 그리고 그리고 사업계획서 검토와 계약관련 사항에 대해 논의하였다. Public informatization projects(PIPs) are strategically important government's works due to their far-reaching spon-off effects. But PIPs have inherent shorcomings since they have to rely on information technolgies characterized by short life cycle and barely predictable developmental path. Moreover, PIPs once in place require a high level of maintenance costs incurred by continuous upgrades and operation staffs. Therefore, a systematic ex-ante evaluation of PIPs should be built-in in the budgeting process. With this point in mind, this paper prposes a two-step ex-ante evaluation model. Based on the national R&D budget prescteening by the National Science and Technology Council the first step pre-screens competing PIP proposals and notifies the results to the national budgetary agency. The second step seeks to maximizes funded PIPs' performance by doing front-end analyses and providing technical assistanies before the launch of PIPs, as seen in the National Computerization Agency's activities for PIPs funded by the information promotion fund.

의류제품 구매에 있어서 유통채널갈등과 가격단서 지각

양원정;서민정;박재옥;이규혜 한양대학교 2006 韓國 生活 科學 硏究 Vol.26 No.2

Differentiated On Off line channel strategies are getting more attention due to conflicts between Off line channel and active E commerce. Choosing an appropriate channel strategy can prevent apparel products from clashing in market and manage each channel more efficiently. In fashion industry, product prices are flexible because of the short product life cycle and different distribution channels. It is essential to understand consumers’ apparel price cue perception when purchasing apparel in both On line and Off line. The objectives of this study was to examine the effects of apparel price cues on perceived savings and purchase intention in On line versus Off line retail channel. 303 quetionnaires from internet experienced women were used for the data analysis. Statistical analyses employed in this study were descriptive statistics, reliabilities conjoint analysis and regression. Overall, the perceived importance of apparel price cues were different between On line and Off line channels and each apparel price cue affected perceived savings and purchase intention differently according to distribution channels. Therefore, by considering characteristics of apparel price cue in On line versus Off line channels, differentiated channel strategies should be imposed to implement more effective marketing strategies.

과량의 방사선에 노출된 흰쥐 소뇌외측핵의 미세구조

정재삼,양남길,안의태,고정식,박경호,김진국 대한해부학회 1992 Anatomy & Cell Biology Vol.25 No.3

선천성 결손치에 관한 임상적 연구

정해경,양연미,김재곤,백병주,정진우,김하나,김미아 大韓小兒齒科學會 2009 大韓小兒齒科學會誌 Vol.36 No.2

The congenital missing of teeth is common, which takes place since the proliferation and differentiation are not allowed in that tooth bud fail to start development. The purpose of this study is to research incidence rate, number, and missing part of congenital missing teeth, and to study whether a person who has missing teeth has other abnormality of teeth or not. For this study, 1,520 subjects(aged 2.9~17) who had visited pediatric dentist department of Chonbuk national university dental hospital within 2 years were examined with an panoramic radiograph ; exempting third molar missing state. The obtained results are as follows. 1. 8.88% among total subjects show missing teeth ; male 9.05%, female 8.64% 2. The most frequently missing permanent teeth were the mandibular second premolars(22.3%). The most frequently missing primary teeth are mandibular lateral incisors(50%). 3. 43.3% patients have one permanent missing tooth, 34.3% have two, and 10.4% have more than six, respectively. In primary teeth, 86.7% patients have one missing tooth, and 13.3% have two missing teeth. 4. 18 patients(13.3%) have missing teeth as well as hyperdontia, while some patients have microdont, ectopic eruption, and fusion teeth. 치아의 선천성 결손은 치배의 발육이 시작되지 못하여 치아의 증식, 분화가 일어나지 못함으로서 발생하는 흔한 치아의 발육 이상이다. 이 연구의 목적은 선천성 결손치의 발생률, 결손치의 수, 발생부위와 결손치 환자에게서 나타난 다른 치아이상의 발생여부를 조사하는 것이다. 본 연구는 2006년 7월부터 2008년 6월까지 전북대학교 소아치과에 내원하여 파노라마를 촬영한 1,520명의 환자(2.9~17세)를 대상으로 제 3 대구치를 제외한 선천성 결손치의 분포를 조사하여 다음과 같은 결과를 얻었다. 1. 전체 1,520명 중 총 8.88%에서 결손치가 관찰되었으며, 남자가 9.05%, 여자가 8.64%에서 결손치가 관찰되었다. 2. 총 350개의 영구 결손치 중 하악 제 2 소구치가 22.3%로 가장 발생률이 높았고, 하악 측절치, 상악 제 2 소구치, 하악 중절치, 상악 측절치 순이었다. 또한 총 18개의 유치 결손치 중 하악 유측절치가 가장 높은 발생률(50%)을 보였다. 3. 1개의 영구치 결손치를 가지는 환자는 43.3%, 2개는 34.3%, 3개는 6,7%, 4개는 1.5%, 5개는 3.7%, 6개 이상은 10.4%이었다. 또한 유치 결손치의 수는 1개는 86.7%, 2개는 13.3%이었다. 4. 결손치가 있는 환자 중 과잉치를 가지는 환자는 18명(13.3%)이 있었으며, 왜소치, 이소맹출, 융합치 등의 치아이상을 지닌 환자도 관찰되었다.

안동지역의 전통민속마을을 이용한 관광상품 개발에 관한 연구

양정영,이재만 문화관광연구학회 2003 문화관광연구 Vol.5 No.2

Traditional folk village has a great significance because it possesses cultural and touristic resources. However for its utilization as touristic resources existence of considerable obstacles must be recognized. What is most important for traditional cultural experience of the region is service to the visitors and attraction luring their re-visitation but currently general attitude is viewing the place merely as an object for sightseeing and such mentality should be transformed. At this juncture what is urgently demanded is transformation of residents’ mentality toward tourists. It is necessary to instill impression on noble style of traditional culture to visitors, providing allurement for revisiting and opportunity for tourists to experience traditional houses personally as touristic product. What is truly required for publicizing Andong is developing traditional touristic products by grafting concept of traditional cultural tourism to the place so that tourists can experience the heritage of traditional folk village and open their eyes to the charm of our unique culture.

제1대구치의 석회화와 맹출 양상

정해경,양연미,김재곤,백병주,소유려 大韓小兒齒科學會 2010 大韓小兒齒科學會誌 Vol.37 No.3

Among the permanent teeth, the first permanent molars play the greatest role in occlusion and function. So, early diagnosis for congenital missing, abnormal eruption and abnormal formation is very important to the first permanent molars in the course of arch development. The aim of this study is to analyse the differences between right and left first permanent molar's formation and eruption and between upper and lower one. A total of 545 children were selected am ong children who had visited our clinic, investigate eruption and calcification stage of permanent first molar, based on Gleiser and Hunt criteria for this study. 1. Gingival emergence of mandibular first molar is faster than maxillary first molar by 0.75~0.8 years, gingival emergence of maxillary first molar in girls faster than boys by 0.45 years, and that of mandibular first molar in girls faster than boys by 0.5 years. 2. There is the significant difference between right and left first molar on the eruption score and the calcification stage ; 5 year old children show the significant difference on the eruption score. 7 year old children show the significant difference on both the eruption score and calcification stage. 3. It shows the most active eruption movement of crown on the maxilla while the root is rapidly widening its furcation and completing root formation to 2/3, on the other hand, the most active crown emerging on mandible is shown when the root formation completed to 1/4 to 1/2. 제1대구치는 치열의 교합 및 발육에 중요하게 관여하며 기능적, 형태적으로 건전한 교합의 발육 및 유지에 필수적인 치아이다. 치열의 발육과정에 있어서 제1대구치의 형성, 맹출 및 형태의 이상이나 선천결손의 발생여부를 조기에 진단하는 것은 매우 중요하다. 이 연구의 목적은 제1대구치의 맹출과 석회화 양상에 대해 조사하여 형성과 맹출의 상, 하악과 좌, 우 차이에 대해 평가하는 것이다. 2007년 7월부터 2008년 6월까지 전북대학교 치과병원 소아치과에 내원하여 파노라마 방사선사진을 촬영한 545명의 어린이를 대상으로, 제1대구치의 맹출 위치와, Gleiser and Hunt의 석회화단계의 분류를 이용하여 제1대구치의 석회화에 대해 연구한 결과 다음과 같은 결론을 얻었다. 1. 제1대구치의 구강내 출은은 하악 제1대구치의 구강내 출은이 상악 제1대구치의 출은보다 0.75~0.8년 빠르게 일어났으며, 여성은 남성에 비해 상악은 약 0.45년, 하악은 약 0.5년 먼저 출은했다. 2. 제1대구치의 석회화단계와 맹출 정도의 좌, 우 차이는, 5세에서 상악 좌, 우측 맹출 정도와, 7세에서 상악 좌, 우측 맹출정도, 하악 좌, 우측 석회화단계가 유의한 차이를 보였다. 3. 상악은 치근 분지부의 급속한 확대단계와 치근 2/3완성단계 사이에서, 하악은 치근 1/4완성단계와 치근 1/2완성단계 사이에 가장 많은 맹출 이동량을 보였다.