고등교육기관 컨설팅의 가능성 탐색

이길재 한국교육행정학회 2022 한국교육행정학회 학술연구발표회논문집 Vol.2022 No.6

생물적 요인과 환경 요인이 지능에 미치는 영향 및 지능과 학업 성취도와의 관계 분석

이길재,이귀연 韓國生物敎育學會 1999 생물교육 Vol.27 No.2

The purpose of this study is investigating the relations between IQ and the scholastic achievements of each subject and KSAT(Korean Scholarship Ability Test). The influence of biological and environmental factors, which include parents' academic background, birth order, number of siblings, parents' age at birth, physical constitution and strength, on intelligence was also investigated. The results of this study are as follows: 1. Intelligence and scholastic achievement of each subject is correlated clearly by r=.4-, 6(p$lt;.0l). Korean(r=.610), mathematics(r=.595) and physics(r=.592) are correlated distinctly, but physical exercise(r=.269), art(r=.274), biology/earth science(r=.278), second foreign languages(r=.379) are less correlated. As the whole subjects are correlated by r=.576, the scholastic achievement is strongly correlated by intelligence(IQ). 2. Intelligence and KSAT are related distinctly(r=.663), but each category of KSAT is less related (r=.2- .4). The degree of correlation is mathematical study II, language, mathematical study I and foreign language in order(p$lt;.01). As a whole, KSAT is correlated by IQ, because the integrative curricular abilities are tested in KAST, each category of that is less correlated. 3. The intelligence was somewhat correlated by parents' academic background (r=.207, p$lt;.01), but it was correlated by other biological and environmental factors, As the result of regression through putting the various elements stepwise, the correlation of the father's academic background and physical strength have an influence on intelligence(p$lt;.001), and the other factors are not correlated. As a result, deciding the intelligence of his children influenced by father's academic background about 4.3% and physical strength about 3.4%. As students who are valued high in physical strength have good intelligence, it is important that the high intelligence is related to the well-nourishing and good physical condition. Through this study we can also find out that the scholastic achievement is much correlated by intelligence, and deciding intelligence is influenced by the father's academic background and physical strength.

Variables that explain changes in institutional rank in U.S. News & World Report rankings

이길재,Thomas Sanford,이정미 한국교육개발원 2014 KEDI Journal of Educational Policy Vol.11 No.1

The growing influence of the U.S. News & World Report rankings has contributed to the competitive environment of higher education, in which institutional survival is contingent on an institution’s ability to acquire and maintain resources. There are academic and financial incentives for institutions to increase their rank. As a result, institutions are altering their behavior in an attempt to increase their rank. These shifts in institutional behavior warrant ongoing research examining the ranking methodology, the costs/benefits of an institution’s change in rank, and the factors that explain changes in rank. This study examines the variables that are most important in explaining changes in institutional ranking from 2006-2008 in the U.S. News & World Report’s America’s Best Colleges issues, and how the variables that are most important in explaining change in institutional rank vary by public and private institutions.

농산물 탄소배출량 평가

이길재 한국토양비료학회 2010 한국토양비료학회 세미나 Vol.2010 No.10

교류망과 정체성 표지의 사회적 기능 : 인월지역 언어사회를 중심으로

이길재 국어문학회 1999 국어문학 Vol.34 No.-

한국형 대학기관연구의 발전 방향

이길재,김희성 한국교육행정학회 2022 敎育行政學硏究 Vol.40 No.4

우리나라 고등교육 기관은 학령인구의 감소로 인해 효율화와 특성화 요구를 받고 있고, 따라서 대학차원의 전략계획 수립 및 정책적 의사결정을 위한 대학기관연구(Institutional Research)의 역할이 강화되고 있다. 최근 대학기관연구는 학생 중심으로의 고등교육 패러다임 전환에 따라 전통적인 서비스 제공 기능에서 벗어나 혁신적인 모델로 진화하고 있다. 우리나라에서는 2014년 전후로 대학기관연구 조직 설립에 대한 논의가 시작되었고, 이후 많은 대학들이 대학기관연구 조직을 구축하였다. 그러나 대학기관연구에 대한 전반적인 인식 제고에 비한 학술 연구 및 발전방향에 대한 논의는 여전히 미흡한 실정이다. 이에, 본 연구에서는 대학기관연구의 개념과 기능에 대한 문헌을 검토하여 고등교육의 환경변화에 따른 대학기관연구의 변천과정을 조망하고, 혁신적인 대학기관연구의 모델과 적용 사례를 분석하여 우리나라의 대학기관연구가 나아가야할 방향을 제시하고자 하였다. 분석결과를 바탕으로 우리나라 대학기관연구의 방향성을 제시하면 다음과 같다. 첫째, 지속가능하고 안정적인 IR 조직 구축이 필요하고, 둘째, 매트릭스 네트워크 IR 모델을 적용한 우리나라 IR 조직의 혁신이 필요하며, 셋째, 학생성공(Student Success)에 대한 근본적인 질문에서 대학 성과관리의 의의를 찾아야 하고, 마지막으로 우리나라 고등교육의 여건, 상황, 혁신적인 방향성을 총체적으로 반영하는 우리나라 고등교육 공동 성과관리시스템 구축이 필수적이다. 대학별로 학생성공을 정점에 둔 최적의 IR 조직을 구축하고 혁신적인 성과관리를 실현함으로써 현재 우리나라 고등교육이 마주하고 있는 위기를 기회로 만드는 전기를 마련해야 할 시점이다. Higher education institutions in South Korea are facing the request for being efficient and distinctive which in turn resulted in emphasizing the role of Institutional Research (IR) establishing strategic planning and supporting policy decision making at the university level. With the student-centered paradigm change of higher education, IR is evolving into an innovative model from traditional function in recent years. In case of South Korea, many colleges and universities have established IR office since the beginning of discussion about it. However, the research and discussion for IR and future direction of it still remains further studied compared to the general progress of its understanding. With this on mind, the current study tries to review the developmental phases of IR, analyze innovative models and instances, and suggests the future directions of IR in South Korea based on the comprehensive review on the relevant studies. Relying on the results of the analysis the major suggestions are recommended as follows. First, it is required to construct sustainable and stable IR unit on the campus, second, matrix network IR model needs to be considered to be applied, third, the final destination of IR should be the success of college students, and, lastly, common performance management system needs to be designed reflecting the current situation of higher education institutions and innovative future directions for them. By setting the final goal of colleges and universities at the success of students and realizing innovative common performance management system, higher education institutions might make a turning point in overcoming the current crisis that universities are facing.

접촉각 측정을 통한 Alkanethiol로 표면 처리한 은 분말의 표면 특성 연구

이길재,신승일,오성근 한국공업화학회 2004 공업화학 Vol.15 No.1

은 분말을 alkanethiol로 표면 처리한 후, alkanethiol의 탄소 개수 변화에 따른 은 입자의 표면 특성변화를 접촉각 측정을 통해 연구하였다. 이때 은 입자 표면에 alkanethiol의 흡착여부를 DRIFT (diffuse reflectance infrared fourier transform) spectrum를 통해 확인하였다. 접촉각은 Washburn 식을 바탕으로 한 liquid penetration 방법으로 측정하였고, 이 측정법의 보완을 위해 분말에 압력을 가하여 원판형태로 만들어 그 표면에서 접촉각을 측정하는 sessile drop 방법을 함께 사용하였다. 그 결과 순수한 은 입자의 물에 대한 접촉각은 두 가지 방법에 대해 각각 58°, 40° 나왔고, 다양한 탄소개수(C_(4)-C_(12))의 alkanethiol로 표면 처리한 입자는 모두 90° 이상의 결과를 얻었다. 즉 alkanethiol로 처리한 은 입자의 표면이 소수성으로 변했음을 의미한다. 여기서 처리한 alkanethiol의 탄소개수가 증가할수록 접촉각은 계속 증가했으나, 접촉각의 증가 폭은 상대적으로 점차 감소하였다. Contact angles of silver powders were measured for investigation of surface properties of silver particles as changing alkyl chain length of alkanethiol. Silver powders were modified by various alkanethiol (C4∼C12). Adsorption of alkanethiol on silver particles was confirmed by DRIFT (diffuse reflectance infrared fourier transform) spectrum. Contact angles were measured by liquid penetration method based on Washbum equation and sessile drop method on tablet of compressed powder. In result. the value of contact angles on water were 53°, 40°about two method. Contact angles of surface treated particles by alkanethiol of varied alkyl chain length were larger than 90°. Because of bonding between silver and sulfur in alkanethiol, silver surface was surrounded by alkyl groups of alkanethiol. Surface properties of silver particles were increased on hydrophobicity with alkyl chain length of alkanethiol. In comparison with increase of contact angle accordingto increase of alkyl chain length of alkanethiol. the widths of increasing contact angle were relatively decreased.

시맨틱 텐서공간모델 기반 텍스트데이터 증식기법

이길재,김한준 한국정보과학회 2019 데이타베이스 연구 Vol.35 No.3

Data augmentation is the process of generating new data with little variation to existing data. Data augmentation helps to prevent model's overfitting and improve performance in machine learning by ensuring data diversity. While data augmentation is actively used in computer vision, the use of data augmentation is limited in text mining. This is because, due to the nature of text data requiring embedding, there is a risk that data having a completely different meaning from the original is generated during the augmentation process. In this paper, we propose a text data augmentation technique based on semantic tensor space model. The proposed augmentation technique does not cause the augmentation problem of text data, and unlike the existing augmentation techniques, it can be easily performed because it uses only simple operations. This paper verifies the validity of the proposed augmentation technique by showing that the data generated by the proposed technique leads to the performance improvement of the model. 데이터 증식은 기존의 데이터에서 약간의 변형을 갖는 새로운 데이터를 생성하는 과정이다. 데이터 증식은 데이터의 다양성을 확보함으로써 기계학습에서 모델의 과적합을 방지하고 성능을 향상시키는 데 도움을 준다. 컴퓨터 비전 분야에서 데이터 증식이 활발히 활용되는 데 반해, 텍스트마이닝 분야에서는 데이터 증식의 사용이 제한적이다. 이는 임베딩을 필요로 하는 텍스트데이터의 특성상, 증식 과정에서 원본과 전혀 다른 의미를 갖는 데이터가 생성될 위험이 있기 때문이다. 이에 본 논문은 시맨틱 텐서공간모델을 활용한 텍스트데이터 증식기법을 제안한다. 제안하는 증식기법은 텍스트데이터가 갖는 증식문제에서 자유롭고, 기존의 증식기법들과 달리 간단한 연산만을 활용하기 때문에 간편하게 수행할 수 있는 장점이 있다. 본 논문은 문서분류 실험을 통해 제안한 증식기법으로 생성한 데이터들이 모델의 성능향상을 이끌어냄을 보임으로써 제안기법의 유효성을 검증한다.

복강경 창상탈장 교정술 후 발생한 Mesh 감염의 치료

이길재,정민 대한내시경복강경외과학회 2012 Journal of Minimally Invasive Surgery Vol.15 No.4

Laparoscopic repair using mesh is a standard technique for ventral hernia repair. Complications of laparoscopic ventral hernia repair increase according to the increment of laparoscopic repair. Subcutaneous emphysema and mesh infection are major complications of laparoscopic repair of ventral hernia. The principle of management of infection is removal of a foreign body. However, in the case of repair with mesh,removal of infected mesh induces recurrence of hernia. Preservation of mesh is the best option for treatment of infected mesh. We have experienced treatment without removal of mesh in a case of infected subcutaneous emphysema after laparoscopic ventral hernia repair. The infection spread slowly to mesh and seroma. Drainage and debridement of infected tissue and evacuation of infected seroma resulted in healing of the infection without removal of mesh.

근치적 절제술을 시행한 대장암 환자에서 복강경 수술과 개복수술의 중기 결과

이길재,이정남,오재환,백정흠 대한대장항문학회 2008 Annals of Coloproctolgy Vol.24 No.5

Purpose: The aims of this study were to assess the oncologic safety of laparoscopic colorectal surgery compared to that of conventional open surgery and to compare the disease- free survival (DFS) rates between laparoscopic and open colorectal surgery for radical treatment of colorectal cancer. Methods: From January 2001 to December 2005, 583 patients underwent laparoscopic or conventional open surgery. To address only radical treatment of colorectal cancer, we excluded subjects who had undergone emergency or palliative operation. Four hundred ninety patients were identified for this study. The laparoscopic (LG) and open group (OG) had 74 and 166 patients, respectively, for colon cancer, and 92 and 158 patients, respectively, for the rectal cancer. Results: No difference was noted in the lengths of the distal margins of the resected bowels between the LG and the OG for rectal cancer (P>0.05). In addition, no significant difference was found in DFS rates between the LG and the OG for both colon and rectal cancer (P>0.05). Conclusions: The laparoscopic technique does not seem to present any disadvantages and is safe and feasible for the treatment of colorectal cancer. No difference was found between laparoscopic and open surgery in terms of DFS for colorectal cancer.