치과 임플란트용 골융합 측정기의 설계 및 평가

이주희,김창일,백종후,조정호,전명표,정영훈,이영진,이정배,이승대,Lee, Joo-Hee,Kim, Chang-Il,Paik, Jong-Hoo,Cho, Jeong-Ho,Chun, Myoung-Pyo,Jeong, Young-Hun,Lee, Young-Jin,Lee, Jeong-Bae,Lee, Seung-Dae 한국전기전자재료학회 2011 전기전자재료학회논문지 Vol.24 No.3

The osseointegration of dental implant is influenced by many factors such as surface geometry, loading and the amount of bone. Thus, stability of the dental implant should be checked periodically. In order to test the stability of dental implant by using resonance frequency analysis, we designed a structure of transducers and fabricated a piezoelectric devices. Using finite element analysis, the thickness and length of piezoelectric device and transducers were tailorized and the optimized frequency of 10 kHz was obtained. The resonance frequency from simulation analysis and evaluation was estimated to be similar as 10 kHz. The osseointegration was further enhanced with increasing frequency from the evaluation result of the finite element analysis.

치과용 초음파 골수술기 설계 및 평가

이주희,오정민,홍연우,김세기,백종후,이영진,이정배,이승대,Lee, Joo-Hee,Oh, Jung-Min,Hong, Younwoo,Kim, Seiki,Paik, Jonghoo,Lee, Young-Jin,Lee, Jeong-Bae,Lee, Seung-Dae 한국전기전자재료학회 2012 전기전자재료학회논문지 Vol.25 No.12

A piezoelectric ultrasonic bone surgical instrument, usually used to remove the tartar out of teeth or to cut the dentine of the tooth, is a recently popular instrument for dental treatment due to its several merits such as small size, low-electric power and precision control of surgical operation. It has typically two parts of a tip and vibration system which is also composed of head, piezoelectric elements and tail-mass. In order to improve the performance of the instrument, it is important to standardize the size of the vibration system without tip for high performance. In this study, a Finite Element Analysis (FEA) was utilized to optimize the structure of ultrasonic instrument in vibration system. Consequently, this study revealed that influence of several tips on property were minimized and it showed good property at the frequency range of 22~32 kHz.

담음(痰飮)에 대(對)한 문헌적(文獻的) 고찰(考察) -호흡기(呼吸器) 질환(疾患)을 중심(中心)으로-

이주희,오태환,정승기,이형구,Lee, Ju-Hee,Oh, Tae-Hwan,Jung, Sung-Gi,Rhee, Hyung-Koo 대한한방내과학회 1992 大韓韓方內科學會誌 Vol.13 No.1

This study has been carried out to investigate the cause and symptom treatment of Dam-Hum (痰飮) by referring to 41 literatures. The results were as follows; 1. The factors causing Dam-Eum (痰飮) divided into 3 groups. The 1st outer factors are six dirty (六淫), 2nd week and yanghu (陽虛), 3rd mental. 2. The symptom of Dam-Eum (痰飮) is as follows. (1) dam(痰) : cough, retching, pain of sub-ribs, vomiting, crazy, coma, dizziness. (2) eum(飮) : edema, stimulus feeling in throat, cough with pain, cough, hemoptysis indigestion. 3. The treatment of Dam-Eum (痰飮) is as follows. gudam(祛痰), sungi(順氣), bobipaesin(補脾肺腎), chungyul(淸熱), jesep(除濕). 4. The drugs of Dam-Eum (痰飮) is as follows. gudam (祛痰): ejintang (二陳湯), dodamtang (導痰湯), gunghatang (芎夏湯). sungi (順氣) : chilgitang (七氣湯), gamisachiltang (加味四七湯). babi (補脾) : gwibitang (歸脾湯), sagunjatang (四君子湯). bopae (補肺) : bapaetang (補肺湯), yunpaeeum (潤肺湯), saeumjun (四飮煎). bosin (補腎) : yukmihwan (六味丸), palmihwan (八味丸), singihwan (腎氣丸).

비색증과 알레르기비염에 관한 문헌적 고찰 -(원인과 증상을 중심으로)-

이주희,김현,최영철,정희재,오태환,정승기,이형구,Lee, Ju-Hui,Kim, Hyeon,Choe, Yeong-Cheol,Jeong, Hui-Jae,O, Tae-Hwan,Jeong, Seung-Gi,Lee, Hyeong-Gu 대한한방내과학회 1993 大韓韓方內科學會誌 Vol.14 No.1

정책-한국 우주인 배출사업, 어떻게 진행되고 있나

이주희,Lee, Ju-Hui 한국항공우주산업진흥협회 2006 航空宇宙 Vol.91 No.-

JY-Pol 접합백신으로 유도된 항페렴구균 항체의 보호효과

이주희,한용문,Lee, Jue-Hee,Han, Yong-Moon 대한약학회 2004 약학회지 Vol.48 No.6

We previously reported that Streptococcus pneumoniae capsule attached to the surface protein (JY-Pol) was protective to systemic pneumococcal infection. The JY -Pol antigen induced IgM, IgG, and IgA in mice and provoked cell-mediated immunity. In this current study, we investigated the effect of anti JY-Pol antiserun and monoclonal antibody C2 (Mab C2) specific for the JY-Pol antigen against the pneumococcal disease. Mice that were given the antiserum survived longer than mice that received antiserum pre-absorbed with S.pneumoniae cells or DPBS as a negative control. Heat-treated anti JY-Pol antiserum resulted in survival rates similar to intact fresh JY-Pol antiserum. Mab C2 isolated from JY-Pol-immunized mice also enhanced resistance of naive mice against the pneumococcal diseaser. This protection by Mab C2 appeared to be mediated by opsonization as determined in a RAW 264.7 monocyte/macrophage cell line. Epitope analysis showed that Mab C2 epitope consisted of glucuronic acid and glucose that blocked the interaction of JY-Pol to the C2. Taken together, these data indicate that the antiserum induced by the JY-Pol, a naturally pneumococcal conjugate formula, mediated the protection by passive transfer, which was confirmed by protective effect of Mab C2.

역세권내 역 인접 소공원의 유형별 이용행태분석을 통한 활성화 방안 연구

이주희,박진아,Lee, Joo-Hee,Park, Jin-A. 한국조경학회 2008 韓國造景學會誌 Vol.36 No.3

2005년 3월 31 일 도시공원 및 녹지 등에 관한 법률 개정으로 도시공원 분류체계에서 소공원과 주제공원을 세분화하여 추가하였으나, 기능, 규모, 유치거리가 명확한 개념이 정립되어 있지 않은 상태이다. 특히, 조성 과정상의 확실한 설계되어 있지 않으며, 최근 법제화된 '도시공원 , 녹지의 유형별 세부기준 등에 관한 지침'(2007.2)에서도 유형을 공원의 설치위치 빛 성격에 따라 근린, 도심소공원으로 구분하였으나, 유형별 공원의 지정은 되어 있지 않은 상태이다. 본 연구에서 보고자 하는 역세권내 위치한 소공원은 설치위치 및 지역의 성격에 따라 그 특성이 다르게 나타나므로 법에서 명시하고 있는 유형에서의 설치위치 및 지역적 특징을 분석하여 궁극적으로 유형별 특성에 따른 공원의 활성화 방안을 제시한다. 유형화를 위한분석기준은 각각의 공원은 인접한 역의 성격과지역의 성격이 다르므로 첫째, 법에서 명시하고 있는 정의에서의 지역적 특성과 이용자 특성에 따른 유형분류로서 근린소공원과 도심소공원의 분류체계에 따라 공원유형분류 한다. 소공원 주변 용도배분비율과 기존의 소공원 설치 당시 공공에서의 설치목적을 각 구청의 담당자의 문의를 통하여 파악하고, 이용자의 거주특성의 경우는 이용자를 대상으로 설문을 거주지와 거주동에 대한 질의응답을 통하여 각 공원의 주 이용자의 거주특성을 파악하여 최종 대상지 근린소공원 3개소, 도심소공원 3개소를 선정하였다. 둘째, 각 유형 관찰조사를 통하여 이용자들의 이용행태특성을 파악하고, 설문조사를 행하여 유형별 대상지의 이용실태 및 이용특성의 차이점과, 어떤 측면에서 각기 다른 특성을 가지고 있는지에 대해 이용실태 및 공원시설에 대한 중요도 및 만족도, 공원 환경적 측면의 만족도에 대한 의견을 조사한다. 셋째, 관찰조사와 설문분석에 따른 결과와 관리 공무원과 공원설계자와의 인터뷰 결과를 종합하여 추후 계획시 고려하여야할 점으로 공원이용 활성화를 위한 시설 및 설계적 측면과 이용행태적 측면, 관리 및 운영적 측면에서 시사점을 도출한다. The government is planning to link a small park with the soon to be ready subway line 9 as a part of Seoul's policy, "The standard or plan for making a water-friendly space by water use" (2007). However, the specified concepts and instructions of the small parks need further work. Therefore, the policy is expected to expand to neighboring small parks near the subway station, but these are not supported by research or data which suggests the needs or actual user behavior and utilization of small parks. our country added the specified concept of small parks and theme parks to the classification of urban parks in the Urban Park Act Revision (2005.3.31), but the concept of small parks is not clearly settled in the law in the scopes of its function, scale, promotion nor particularly defined plans for small park projects. This study examines as small park near a subway station. The characteristics of there region and users vary from the characteristics of the station and region. In the "directions for concrete standards under the types of urban parks and green zones" (2007.2) the types of small parks are classified by "regional characteristics" and "user characteristics". Therefore, this study classifies the subject of neighboring small parks near subway stations as the neighborhood and small urban parks according to the Urban Park Act. The study was paralleled with observation and questionnaires on the analysis of the neighborhood and small urban parks. The actual conditions of park utilization and user behavioral characteristics were deducted by observation, while the questionnaire determined actual user utilization, importance and satisfaction level as well as the small park environment. This study largely focused on three aspects: park facility, design of this sentence isn't even complete. The second aspect isn't finished and the third isn't here.

성인 심장수술 후 중환자실에 입실한 환자의 계획된 발관 후 비계획적 기관 재삽관 위험요인과 임상결과

이주희,최혜란,Lee, Ju-Hee,Choi, Hye-Ran 한국중환자간호학회 2022 중환자간호학회지 Vol.15 No.3

Purpose : This study aimed to identify risk factors for unplanned reintubation after planned extubation and to analyze the clinical outcomes in patients admitted to the intensive care unit after cardiac surgery. Methods : The study examined patients who underwent intubation and planned extubation admitted to the intensive care unit after cardiac surgery between January 1, 2017, and December 31, 2021. The reintubation group comprised 58 patients underwent unplanned reintubation within 7 days of planned extubation. The maintenance group comprised 116 patients who did not undergo reintubation and were matched with the reintubation group using the rational for matching criteria. Data were collected retrospectively from electronic medical records. We used the independent t-test, Mann-Whitney U test, 𝑥²-test, Fisher's exact test, and logistic regression analysis with SPSS/WIN 27.0. Results : The multivariate logistic regression analysis demonstrated that albumin (odds ratio [OR]=0.38, 95% confidence interval [CI]=0.20-0.72), surgery time (OR=1.54, 95% CI=1.20-1.97), PaO₂ before extubation (OR=0.85 per 10 mmHg, 95% CI=0.75-0.97), postoperative arrhythmia (OR=2.82, 95% CI=1.22-6.51), reoperation due to bleeding (OR=4.65, 95% CI=1.27-17.07), and postoperative acute renal failure (OR=2.97, 95% CI=1.09-8.04) were risk factors for unplanned reintubation. The reintubation group had a higher in-hospital mortality rate (𝑥²=33.74, p<.001), longer intensive care unit stay (Z=-7.81, p<.001), and longer hospital stay than the maintenance group (Z=-8.29, p<.001). Conclusion : These results identified risk factors and clinical outcomes of unplanned reintubation after planned extubation after cardiac surgery. These findings should be considered when developing and managing an intervention program to prevent and reduce the incidence of unplanned reintubation.

조경설계공모의 문제점 및 요소별 중요도 분석

이주희,조세환,Lee, Joo-Hee,Cho, Se-Hwan 한국조경학회 2013 韓國造景學會誌 Vol.41 No.6

본 연구는 현재 조경 설계공모 과정에서 발생되고 있는 문제점을 AHP 기법을 활용하여 분석 및 고찰함으로써 조경설계 공모제도 개선을 위한 기초자료 제시를 목적으로 수행하였다. 본 연구 결과, 첫째, 조경설계공모 제도의 문제점을 이루고 있는 1계층 항목에서는 '당선작 선정과정'이 가장 중요한 문제점으로 나타났고, 그 뒤를 따라 '당선작 이후 설계변화', '조경설계 공모 지침', '조경설계 공모 방식' 순으로 중요도가 나타났다. 둘째, 계층 1을 구성하고 있는 하위 항목에서는 '비 조경전문가의 심사 참여'가 가장 심각한 문제로 의견이 모아졌으며, '심사위원의 전문성 결여', '심사배점방식의 문제' 항목 등 '당선작 선정과정'에 해당하는 하위 요소가 전체 12개의 요소 중 가장 높은 순위를 차지하고 있는 것으로 나타났다. 또한 조경설계공모 당선이 이루어진 후에 일어나는 '발주자의 임의 설계변경 현상'에 대한 중요도도 높게 나타남으로써 조경설계공모의 문제점에서 간과할 수 없는 사항으로 분석되었다. 본 연구는 조경설계공모상 과정에서 발생하는 문제점의 우선순위를 선정함으로써 향후 제도 개선 시 선행적으로 검토가 이루어져야 할 부분을 찾았다는 점에 의의가 있었으며, 이러한 문제점을 근거로 향후 제도개선 방안에 대한 후속연구가 있어야 할 것임이 제안되었다. This study is conducted for the purpose of analyzing and contemplating the problems with the competition in current landscape design, with the goal of improving the landscape design competition system by using the AHP technique. The result of this study, first describe the Landscape design competition system that formed the problems and show the most important problem followed by other problems shown in order of importance, which are 'design changes after winning', 'Guidelines for design competition' and 'Landscape design competition manner'. Secondly, in the low rank article make up the level one -From a total 12 elements from the low rank article corresponding in 'process of winner selection' the 'Unprofessional landscape participate the screening' collected comments for the biggest problem, 'lack of expertise in judgement', 'problems with the examination scoring system' and other articles, the corresponding in 'process of winner selection' appears at the highest ranks. It also happens that after making the choice in the landscape design competition, the importance of 'client's design change symptoms' appears high. As a result the overlooked details of the landscape design competition's problems were analyzed. This study has prioritized the problems by problems which landscape design competition institutions most frequently have. Based on this ranking, there is significance purpose to create proactive system improvements in the future. By analyzing these problems, we will be better able to develop improvements to the future system.

유한요소법을 이용한 고온용 초음파 유량센서의 설계 및 평가

이주희,김창일,백종후,조정호,정영훈,이영진,남산,Lee, Joo-Hee,Kim, Chang-Il,Paik, Jong-Hoo,Cho, Jeong-Ho,Jeong, Young-Hun,Lee, Young-Jin,Nahm, Sahn 한국전기전자재료학회 2011 전기전자재료학회논문지 Vol.24 No.11

An operation temperature of $Pb(Zr,Ti)O_3$ based piezoelectric ultrasonic flowmeter was generally restricted to below 200$^{\circ}C$ due to a low depoling temperature of its ceramic material. Thus, a new designed piezoelectric ultrasonic flowmeter was fabricated in order to protect from the extremely hot fluid. Its structure is optimized by a finite element method to effectively stop heat flowing along a waveguide. Various materials such as Cu, Al, SUS were examined as a multi-plate radiation shield to enhance the performance of piezoelectric ultrasonic flowmeter. The SUS was evaluated as the most effective material to enhance the performance of piezoelectric ultrasonic flowmeter. As the number of plates of the radiation shield increased, the temperature at piezoelectric transducer away from the hot fluid was constantly decreased with a ratio of 3.12$^{\circ}C$ per the plate number.