자가 블록골을 이용한 치조골수평증강술과 임프란트 식립

안지연,김영균,윤필영,황정원,Ahn, Ji-Yeon,Kim, Young-Kyun,Yun, Pil-Young,Hwang, Jung-Won 대한악안면성형재건외과학회 2007 Maxillofacial Plastic Reconstructive Surgery Vol.29 No.5

In general, labiolingual or buccolingual widths of residual alveolar bone are insufficient in edentulous area, because of alveolar resorption. Horizontal augmentation is bone graft procedure with a view to reinforcing horizontally insufficient bone quantity for installation of implants. The standard method is taking appropriate amount of block bone from intraoral or extraoral autogenous bone, and solid fixation with screws or mini-plate on labial or buccal side of residual alveolar bone. The purpose of this study is to discuss clinical usefulness of horizontal augmentation with autogenous block bone by observation and analysis of course of 41 implants installed to 12 patients by horizontal augmentation in Seoul National University Bundang Hospital from July, 2002 to December, 2005. The mean age of patients is 52.7, from 19 to 70, and the number of men and women is each 2 and 10. Block bone was taken from symphysis, body, ramus of mandible or iliac bone. And 6 types of implants were installed simultaneously or not, the diameters of implants are from 3.3 to 5.5mm, the lengths are from 8 to 15mm. The operator added artificial bone grafting material and optionally covered with membrane. The mean periods of observation after operation and final prosthetics were 28.6 and 17.0 months. As a result, 40 among 41 implants survived, the survival rate was 97.6%. Average 0.9mm crestal resorption was observed at final point of time by periapical view of each patients. Major complication related to the procedure was numbness in 7 patients.

Cephalometric Characteristics of TMD Patients based on RDC/TMD Axis I Diagnosis

안지연,김용우,김영구,이정윤,Ahn, Ji-Yeon,Kim, Yong-Woo,Kim, Young-Ku,Lee, Jeong-Yun Korean Academy of Orofacial Pain and Oral Medicine 2011 Journal of Oral Medicine and Pain Vol.36 No.1

The aims of this study were to investigate whether the facial skeletal patterns previously reported to be related to temporomandibular disorder (TMD) in other studies could be consistently observed in the TMD patients diagnosed according to Research Diagnostic Criteria for Temporomandibular Disorder (RDC/TMD) Axis I and evaluate its usability in the orthodontic clinics to examine the patients with TMD related symptoms. The clinical records and radiographs of female patients who visited the TMD and Orofacial Pain Clinic of Seoul National University Dental Hospital and were diagnosed as TMD were consecutively filed for this study. Patients were clinically examined and diagnosed according to the revised diagnostic algorithms of RDC/TMD Axis I and the lateral cephalogram, panoramic orthopantomogram, temporomandibular joint (TMJ) orthopantomogram, and transcranial radiograph of each patient were taken and digitalized. The data of patients who were under 18 years of age or had any systemic disease, trauma history involving the TMJ, or skeletal deformity at the time of the first examination were excluded. The remaining data of 96 female patients were finally analyzed. The obtained results were as follows: 1. There are no significant differences of cephalometric measurements between RDC I (muscle disorders) diagnostic groups. 2. Only the articular angle of the RDC group IIc (disk displacement without reduction without limited opening) patients was larger than patients of the no diagnosis of RDC II group (disk displacement). 3. Larger articular angle and smaller facial height ratio were observed in RDC IIIc group (osteoarthrosis) compared to IIIa group (arthralgia). Larger articular angle, larger Bjork sum, smaller posterior facial height, and smaller facial height ratio were observed in RDC group IIIc compared to no diagnosis of RDC III group (arthralgia, arthritis, and arthrosis). 4. According to the results of cephalometric analysis in simplified RDC groups, smaller overjet was observed in muscle disorders (MD) group. Facial height ratio and IMPA were smaller and articular angle was larger in disk displacements (DD) group than in no diagnosis of DD group. In arthrosis (AR) group, posterior facial height, and facial height ratio were smaller, and articular angle, gonial angle, facial convexity, FMA, Bjork sum, and ANB were larger than in no diagnosis of AR group. In joint pain (JP) group, only posterior facial height was smaller than no diagnosis of JP group. In conclusion, Facial morphologic patterns showing posterior-rotated mandible and lower posterior facial height is related to RDC group II and III diagnosis of the TMJ in female TMD patients. RDC/TMD Axis I diagnosis can provide a good clinical diagnostic tool for the standardized examination of the TMJ in orthodontic clinics.

방사선 영상을 이용한 탄약신관 안전상태 자동인식기술 개발

안지연,An, Ji Yeon 한국군사과학기술학회 2015 한국군사과학기술학회지 Vol.18 No.3

This paper presents the development of the automatic safety inspection technique for the ammunition fuzes using radiography images. The technique inspects 49-ammunition fuze by detecting the X-ray or neutron radiographic images to check whether the fuze is unintendedly armed or/and some major assembled parts are at right place. To execute the program, we loads the image(s) for under test. After reading images, the program conducts a series of pre-image processing, and then starts inspecting input images by using the detection algorithms which are designed distinctively for each fuze. After completing the detection process, the program displays the final result of the fuze status: "safety or danger." Through this program, we can cut off the fuzes which have any doubt about safety, and can only provide absolutely safe fuzes, compared with the current naked eye inspection method.

공간정보를 이용한 옥상녹화 가용면적 추정

안지연 ( Ahn Ji-yeon ),정태웅 ( Jung Tae-woong ),구지희 ( Koo Jee-hee ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2016 한국환경복원기술학회지 Vol.19 No.5

The purposes of this research are to estimate area of greenable roof and to monitor maintaining of green roofs using World-View 2 images. The contents of this research are development of World-View 2 application technologies for estimation of green roof area and development of monitoring and maintaining of green roofs using World-View 2 images. The available green roof areas in Gwangjin-gu Seoul, a case for this study, were estimated using digital maps and World-View 2 images. The available green roof area is approximately 12.17% (2,153,700㎡) of the total area, and the roof vegetation accounts for 0.46% (80,660㎡) of the total area. For verification of the extracted roof vegetation, Vworld 3D Desktop map service was applied. The study results may be used as a decision-making tool by the government and local governments in determining the feasibility of green roof projects. In addition, the project implementer may periodically monitor to see whether roof greening has maintained for efficient management of projects, and a vast amount of World-View 2 images may be regularly used before and after the projects to contribute to sharing of satellite images information.

지역사회 재가노인의 건강수준과 주관적 기대여명

안지연(An, Ji Yeon) 노인간호학회 2018 노인간호학회지 Vol.20 No.1

Purpose: This study was done to investigate levels of health and subjective life expectancy for community-dwelling elders and to identify factors affecting subjective life expectancy. Methods: For the data of this study were used from the Korean Longitudinal Study of Aging (KLoSA), a national panel data set. From the 2014 data set, data on 2,362 participants over 65 years of age and within normal cognitive levels were analyzed using t-test, ANOVA, and multiple regression analysis. Subjective life expectancy was defined as the individuals estimate of their possibility of living another 10~15 years by age group. Results: Subjective life expectancy for the total participants was 51.85 out of 100 points. More than 50% participants rated their perceived health status as above the level fair . Subjective life expectancy were different depending on perceived health status, vision, hearing, chewing, number of chronic diseases, depression, and ADL. Significant factors for subjective life expectancy were identified as perceived health status, vision, number of chronic diseases, and depression. Conclusion: The results indicate that positive perception of health status and integrated care for health conditions (depression and chronic disease) is needed to increase subjective life expectancy.

안전성 증대를 위해 솔레노이드를 적용한 신관 안전장전장치 설계

안지연(Ji Yeon An),정명숙(Myung Suk Jung),김기륙(Ki Lyug Kim) 대한전자공학회 2014 전자공학회논문지 Vol.51 No.10

신관 안전장전장치는 비행체의 수송, 저장, 취급 중의 안전을 절대적으로 보장하도록 설계되어야 한다. 본 논문에서는 비행체에 적용되는 신관 안전장전장치의 안전성을 증대시키기 위한 솔레노이드 조립체와 솔레노이드 조립체를 구동하기 위한 솔레노이드 구동회로를 포함한 신관 안전장전장치 설계에 대해 기술한다. 솔레노이드 조립체는 신관 안전장전장치에 적용한 추가적인 안전장치로서, 코일 조립체, 복원스프링, 코어 등으로 구성된다. 솔레노이드 조립체의 코어는 평상시에는 1차 안전장치를 구속하고 있어 1차 안전장치가 작동하는 것을 저지해줌으로써 비행체의 취급이나 수송 시 안전을 확보해주게 되며, 발사를 위한 비행체 배터리 전원이 인가 및 활성화되어 신관 안전장전장치에 공급되면, 솔레노이드 구동회로가 코어를 작동시켜 신관 안전장전장치의 1차 및 2차 안전장치를 해제시키는 역할을 한다. 또한, 솔레노이드 구동회로는 비행체 발사 이후, 신관 안전장전장치의 기계적 장전이 완료되어 장전스위치가 turn-on되면 솔레노이드 조립체에 인가되는 전원을 자동 차단시켜 비행 중의 전원 소모량을 줄일 수 있도록 하였다. The safety and arming device(SAD), one of the components of the fuzes, shall provide safety that is consistent with handling, storage, transportation, use, and disposal. In this paper, we describes the design of the SAD which includes the solenoid assembly and the solenoid driving circuit to improve the safety of the fuzes. The solenoid assembly consists of a coil assembly, a restoring spring, and a core. The solenoid assembly is added in the SAD as an additional safety device. In case of the normal circumstances, the core of the solenoid assembly restrains the 1st and 2nd safety devices of the SAD for those devices not to operate at all, so that the SAD can secure safety for storage, transportation, and use. In contrast, when the battery power is provided to the solenoid driving circuit just before the flight, the core confirms the power level and starts removing the restraint from the 1st and 2nd safety devices of the SAD, and then the SAD is able to change its mode from safety mode to armed mode. After firing, once the SAD’s operations complete, the turned-on arming switch stops providing the power to the solenoid assembly automatically. It can reduce the power consumption at solenoid assembly. Therefore, the proposed solenoid driving circuit for the solenoid assembly not only unlocks the restrained solenoid assembly from the safety devices, but also saves the power consumption during the flight.

직장인의 역경지수가 조직적응에 미치는 영향

안지연(Ji-Yeon An),김혜진(Hye-Jin Kim) 한국콘텐츠학회 2015 한국콘텐츠학회논문지 Vol.15 No.9

본 연구는 직장인의 역경지수가 조직적응에 영향을 미치는지를 파악하기 위해 시도되었다. 조직적응은 기업측면에서 개인의 성공을 예측할 수 있는 결정인자로써 다차원적인 조직적응을 설명할 수 있는 중범위 이론으로 역경지수의 영향을 알아보고자 하였다. 연구대상자는 중소 이상의 기업에 근무하는 서울경기 지역 직장인을 대상으로 연구목적에 대해 서면 동의한 총 202명이다. 자료수집은 2013년 8월~10월까지 구조화된 자가 보고식 설문지를 활용하였다. 역경지수의 도구는 Adversity Quotient Profile(AQP)를 이용하였고, 수집된 자료는 상관관계와 회귀분석을 이용하여 분석하였다. 연구결과, 역경지수는 감성지능 및 복원력과 유의한 상관관계를 가지는 것으로 나타났고, 회귀분석에서는 역경지수, 감성지능, 복원력이 조직적응을 19.9% 설명하는 것으로 나타났으며 회귀계수에서는 역경지수만이 유의성을 보였다. 본 연구결과를 토대로 직장인의 조직적응을 높일 수 있는 방안으로 역경지수가 중요 변수임이 확인되었다. The study examined the adversity quotient to determine the organizational adaptation among office workers in Korea. Participants were 202 adults who work in general offices in Seoul and Gyeonggi-do. Data were collected from August to October in 2013. Adversity quotient was measured using Stoltz’s Adversity Quotient Profile(AQP) and Correlation analysis and multiple regression analysis were done. In result, adversity quotient was significantly related with emotional intelligency and resilience. Multiple regression revealed that adversity quotient emerged as the most significant predictor of organizational adaptation. Adversity Quotient Profile could be a useful tool to measure the capacity of overcoming the adversity and applied to develop the education contents or program strategies.

『예기(禮記)』의 희생제의 이론에 대한 예비적 고찰 : 로버트슨 스미스(W. Robertson Smith)의 이론과의 비교를 중심으로

안지연 ( Ahn Ji Yeon ) 한국종교학연구회 2022 宗敎學硏究 Vol.40 No.-

This is a preliminary attempt to bring the Liji (禮記), one of the Confucian classics, into contemporary discussions on ritual theories. By viewing the Liji not as an object of religious studies but as a repository of theories for research, this paper aims to compare the theories of sacrifice found in the Liji with W. Robertson Smith’s theory of sacrifice. Both Robertson Smith and the Liji demonstrate the concept of the ancient community as a group bound by a shared source of life which includes not only humans but also spiritual beings as its members. Accordingly, the theories of Robertson Smith and the Liji similarly present sacrifice as an activity inherently public in nature in which the members of the community are meant to strengthen their bonds. However, the Liji’s theories of sacrifice differ from Robertson Smith’s in that the former puts much more emphasis on the hierarchies in sacrifices. Therefore, the Liji’s theories can act as valuable references when it comes to discussions on the differences and distinctions in rituals. On the other hand, the theories of the Liji may have a weakness in explaining the social background in which the slaughtering and blood-shedding of sacrificial victims can acquire fundamental importance.

임상 간호사의 혈액매개감염 주의지침에 대한 수행정도

안지연(An, Ji-Yeon),이영미(Lee, Young-Mi),송정희(Song, Jung-Hee) 한국간호교육학회 2010 한국간호교육학회지 Vol.16 No.1

Purpose: This study was conducted to investigate the cognition level and the performance level of universal precautions on blood-borne infections and to analyze related-factors on the performance level for universal precautions among the nurses. Method: A total of 166 nurses participated in the survey. We performed multiple linear regression to assess the related-factors on the performance level for universal precautions. Result: The mean scores of cognition and performance level for universal precautions were 65.61(±8.74) and 53.98(±8.42) respectively. The mean score of the cognition level was significantly lower than the performance level in all items. The cognition level was associated with the working field. The performance level was highest for nurses working over 36 years, nurses in university hospitals, and nurses in the operating room. The cognitive level for universal precautions, education level, exposure to blood-borne infection, familys income, and marital status significantly predicted the performance level for universal precautions in the multiple linear regression model (Adjusted R2=0.42). Conclusion: The cognition level for universal precautions is the strongest predictor on the performance level for universal precautions. An integrated approach should incorporate training experiences to improve cognition and perception of risk on universal precautions for preventing blood-borne infections.

직업분류 및 고용분류에 따른 스트레스, 우울증상, 의료기관 이용률

안지연(Ji-Yeon An),이성은(Seoung-Eun Lee) 한국콘텐츠학회 2014 한국콘텐츠학회논문지 Vol.14 No.2

본 연구는 직업분류 및 고용분류별 스트레스, 스트레스 상담, 우울증상, 우울증상 상담 정도를 파악하기 위해 지역사회건강조사 자료를 이차 분석하였다. 직업분류별 및 고용분류별 확실한 비교를 위해 기준 직업 군으로 ‘무직(직업분류 기준항목)’과 ‘무급가족종사자(고용분류 기준항목)’를 포함하여 한국표준직업분류(6차 개정)에 의한 총 13개의 직업군을 이용하였다. 직업분류 및 고용분류별 스트레스, 스트레스 상담, 우울증상, 우울증상 상담 여부의 교차비에서는 ‘무직’과 ‘무급가족종사자’의 스트레스 정도가 대체적으로 더 낮게 나타난 반면, 스트레스 상담, 우울증상, 우울증상 상담에서는 ‘무직’과 ‘무급가족종사자’가 오히려 더 높은 교차비를 보였다. ‘관리직’을 포함한 7개의 직업군은 ‘무직’보다 스트레스를 많이 받지만(OR > 1), 의료기관 이용률은 낮게 나타났다(OR < 1). ‘고용주 및 자영업자’와 ‘임금근로자’가 ‘무급가족종사자’에 비해 높은 교차비를, 스트레스 상담 및 우울상담에서는 낮은 교차비를 보였다. 본 연구는 정신건강문제 선별 및 관리를 위해 특정 인구집단에 대한 접근을 통해 직장 내 정신보건서비스 제공에 대한 필요성을 시사하고 있다. The purpose of this study is to examine the level of stress and depressive symptom and to assess the utilization of professional consultation. Data extracted from Community Health Survey (CHS), conducted by Korea Centers for Disease Control and Prevention. The subjects were 174,975 (19-65 years). In result, ‘Managers’, ‘Professionals and related workers’, ‘Clerks’, ‘Service workers’, and ‘Sales workers’, ‘Equipment, machine operating assembling workers’, and ‘Armed forces’ were more in risk of stress. However, theses groups were less in probability of utilization for stress consultation. Based on these findings, mental health screening program for detecting risk group among occupation classification and employment status will be essential. It may be necessary to have sustainable strategies for utilizing mental health service to reduce the level of stress and depressive symptom of workers.