구조적 문서의 효율적인 순수 구조 질의 처리를 위한 알고리즘의 설계와 평가

김현주,류시국,김영자 慶南專門大學 2001 論文集 Vol.29 No.1

남녀 대학생의 성역할 모델과 취업 및 결혼관

김현주,이동원,김모란 이화여자대학교 한국문화연구원 1995 韓國文化硏究院 論叢 Vol.66 No.1-3

This study examines the differences in the expectations of employment and marriage among Korean university students. We focus on the gender differences among students. The data were collected through self-reported questionnaires in 1994. The sample size is 894 cases. Because the sexual division of labor is still a prominent pattern in Korea, we expect that the ideals and preparations, in the male-oriented employment area and in the female-oriented marriage area would show differences among female and male students. We found no difference in the employment area but significant differences in the marriage area. Rather, sex role models were found having significant implications in the male-female differences. Major findings related to marriage show that the gender effects are overlapping with the sex role model effects. However, the differences in employment area which do not show the gender difference depends on the sex role model. The results show that most university students eager to and prepare well to have a job. Although most students expect to marry, and increasing proportion of female students decide not to marry. Major reasons of the negative perspective for marriage seem to be related to the perception that the present marriage system is unfavorably constructed for women. Even if many of university students show the sign on egalitarian perspectives, the pace of changes toward egalitarianism among male students lags far behind that of among women. Based on these findings we can see many students try to maximize their interests. They would like to enjoy the stability of the preexisting sexual division of labor as well as the fruit of egalitarian division of labor.

만곡 근관에서 삼각 혹은 장방형 단면 구조의 니켈-티타늄 파일 응력 분포에 관한 3차원 유한요소 연구

김현주,이찬주,김병민,박정길,허복,김현철 대한치과보존학회 2009 Restorative Dentistry & Endodontics Vol.34 No.1

이 연구의 목적은 3차원 유한요소 모형 분석을 이용하여 삼각 대칭형과 S형태의 단면 및 변형된 사각 형태인 장방형 단면으로 분류되는 네 종류의 니켈티타늄 파일이 만곡 근관 적용 시의 응력 분포를 비교하는 것이다. 삼각 대칭형 단면 구조의 ProFile #30 / .06과 HeroShaper #30 / .06,장방형 단면구조의 Mtwo #30 / .05와 NRT #30 / .06 파일을 마이크로컴퓨터 단층촬영을 하고 reverse engineering을 통하여 파일의 구조를 얻고 삼차원 유한요소모형을 제작하였다. 모형 근관 내에서 파일이 근관장 끝까지 진입하여 회전할 때 발생하는 von Mises 응력 분포 및 파일의 제거후의 잔류 응력의 분포양상을 ABAQUS 프로그램을 이용하여 비교하였다. 근관 내 회전 시에 발생하는 응력을 관찰하였을 때 NRT 파일에서 가장 큰 응력을 나타냈으며 , 각 파일에서의 최고 응력과 최저 응력을 비교하였을 때 Mtwo파일에서 가장 큰 차이가 나타났다. 응력의 내부 분포 경향을 보았을때 장방형 구조의 단면을 가진 Mtwo 및 NRT 파일에서 불연속적인 응력의 집중 부위가 관찰되었으며 , 근관 외부로 파일을 제거하여 탄성 회복이 일어난 후의 잔류 응력도 NRT 파일에서 가장 높게 나타났다. 이상의 결과로 유추할 때, 삼각대칭 단면 구조를 가진 파일보다 S-형태의 단면과 변형된 사각 형태의 단면 등의 장방형 단면 구조의 파일이 파절의 위험성이 더 클 것으로 사료된다. The purpose of this study was to compare the stress distributions of NiTi rotary instruments bascd on their cross-sectional geometries of triangular shape-based cross-sectional design. S-shaped cross-sectional design and modified rectangular shape-based one using 3D FE models. NiTi rotary files of S-shaped and modified rectangular design of cross-section such as Mtwo or NRT showed larger stress change while file rotation during simulated shaping. The stress of files with rectangular cross-section design such as Mtwo, NRT was distributed as an intermittent pattern along the long axis of file. On the other hand, the stress of files with triangular cross-section design was distributed continuously. When the residual stresses which could increase the risk of file fatigue fracture were analyzed after their withdrawal, the NRT and Mtwo model also presented higher residual stresses. From this result, it can be inferred that S-shaped and modified rectangular shape-based files were more susceptible to file fracture than the files having triangular shape-based one.

Ta 상·하부 전극을 가진 Ta₂O_(5) 박막 커패시터의 전기적 특성

김현주,송재성,김인성,박문흠,김상수 昌原大學校 基礎科學硏究所 2003 基礎科學硏究所論文集 Vol.15 No.-

The electrical characteristics of Tazodtantdum pentoxide) films sputtered on Ta/Ti/SiO₂/p-Si substrate were investigated. Ta(tantalum1 was used for the bottom and top electrode for the purpose of simplifying the manufacturing process in IPD's(integrated passive devices). Dielectric materials deposited on Ta/Ti/SiO₂/p-Si were annealed at 700 ℃ for 60 sec in vacuum. The XRD results showed that as-deposited Ta had a highly preferred orientation, but Ta₂O_(5) film possessed amorphous structure, which was transformed to crystalline by rapid thermal annealing. We compared the C-F, C-V, and 1nJ-E of both as-deposited and annealed dielectric thin films deposited on Ta bottom electrode. From this results, we concluded that the leakage current could be reduced by heat treatment and dielectric constant was high than Ta₂O_(5) deposited on Pt, Au, etc.. Therefore, Ta as electrode material is thought that is suitable as material to replace the precious metal electrodes and to simplity the fabrication process of the Ta₂O_(5) MIM capacitor.

가상대학에서 컴포넌트에 대한 참여도 기반 출석 평가 시스템

김현주,최길림,김삼룡 慶南專門大學 2001 論文集 Vol.29 No.1

놀이중심의 인지행동치료를 통한 아동의 인터넷 게임중독행동 및 자기효능감 개선효과에 관한 사례연구

김현주 대구대학교 특수교육재활과학연구소 2007 再活科學硏究 Vol.25 No.2

The present study is to examine the effects of a play-based cognitive behavior therapy program for the children who play in excessive internet games. A play-based cognitive behavior therapy program was conducted for five weeks, twice a week, and 80-90 minutes per each program. To examine changes in the children’s self‐efficacy, we compared the scores of the self-efficacy test conducted before and after the program, and to examine changes in behaviors related to self-efficacy, we analyzed children’s behaviors observed in free play situation. To examine changes in game addiction behavior, we compared the results of the game addiction diagnosis test conducted before and after the treatment, and monitored changes in the children’s behavior by measuring game playing two or tree or above hours in a week. The results showed that: First, play-based cognitive behavior therapy program improved self-efficacy in the children addicted to Internet games and, consequently, increased the children’s 'self-confidence', 'self-control efficacy' and 'preference of subject difficulty' behavior. Second, the play-based cognitive behavior therapy program reduced the score of game addiction and game playing two or tree or above hours in the children addicted to internet games. There results suggest that play-based cognitive behavior therapy is effective in improving self-efficacy and decreasing addiction behavior in children addicted to internet games. 본 연구는 과도한 인터넷 게임사용으로 인해 어려움을 보이는 아동들을 대상으로 놀이중심의 인지행동치료 프로그램을 실시하여 그 효과를 검증한 연구이다. 놀이중심의 인지행동치료 프로그램은 5주 동안 매주 2회, 80-90분간 실시하였으며, 대상 아동의 자기효능감 변화를 알아보기 위해 프로그램 사전/사후에 자기효능감 척도의 점수를 비교하였으며, 자기효능감과 관련된 행동변화를 알아보기 위해 자유놀이 상황에서 관찰된 아동의 행동 변화를 제시하였다. 또한 게임중독행동의 변화를 알아보기 위해 프로그램 사전/사후에 게임중독진단 척도의 점수를 비교하였으며, 일주일간의 게임 사용시간을 측정하여 대상 아동의 행동변화를 관찰하였다. 연구결과 첫째, 놀이중심의 인지행동치료 프로그램을 통해 인터넷 게임중독 아동의 자기효능감이 향상되었고, 자기효능감 향상에 따른 아동의 '자신감', '자기조절효능감', '과제난이도선호' 행동이 증가하였다. 둘째, 놀이중심의 인지행동치료 프로그램을 통해 인터넷 게임중독 아동의 게임중독 점수와 게임 사용시간이 감소하였다. 본 연구는 놀이중심의 인지행동치료가 인터넷 게임중독 아동의 낮은 자기효능감을 향상시키고 게임중독행동을 감소시키는데 효과가 있는 것으로 나타났다.

만곡 근관에서 엔진 구동용 Ni-Ti File과 초음파 기구에 의한 근관셩형 능력의 비교

양규호,오원만,김현주 大韓齒科保存學會 1995 Restorative Dentistry & Endodontics Vol.20 No.2

才子佳人小說의 전래·수용 양상 비교 연구

김현주 문창어문학회 2009 문창어문논집 Vol.46 No.-

유럽 공동주택 사적 외부공간의 공간구성 특성에 관한 연구

김현주 水原大學校 2019 論文集 Vol.33 No.-

This study derives the characteristics of the private external space planning in multi-family housing through the analysis of the good case built after 2000 in Europe. First, the cases were categorized into block/ block perimeter, linear and point type to examine the relationship between the type of building in urban planning and the private external space. In block/ block perimeter, linear type, private external spaces are planned in the inner courtyards or open space between buildings used as common space for residents, inducing exchanges between neighbors. The open space around housing classified as point type belong to the urban space, so a private external space is planned which has the characteristics of mitigating the conflict between the private and public spaces. In the most of the cases, unit households are divided into collective and private areas, and at least one private external space could be planned for each area. In the classification as point type, there are many cases, where private external spaces are arranged in all directions connected almost all interior spaces.

災害 發生時 避難 危險度 算定 기준에 관한 硏究

姜良錫,金賢珠 弘益大學校 科學技術硏究所 1999 科學技術硏究論文集 Vol.10 No.1

Urban disasters such as earthquake or explosion cause fire and collapses, and the residents of the affected region happen to evacuate. The factors that influence the effectiveness of evacuation include the population as well as the street conditions and the surrounding physical environments of the region. While the size of the population, either residing or commuting, is basically determined by the region's land-uses, the street condition is dependent on its width, traffic volume, and the fixed or movable obstacles installed. The surrounding environments are a comprehensive consequence of the land-use planning and the general development patterns that dominate the uses, materials, structures, sizes, and densities of the buildings. Above three are in essence the primary factors that determine the effectiveness of evacuation in case of urban disasters. This study suggests the methods to evaluate the riskiness of evacuation in terms of these three factors. The riskiness thus measured could provide fundamental data to determine the priority of investments on urban facilities and to formulate the planning guidelines for rearrangement and maintenance of such facilities.