일본의 인지증(치매) 고령자 부양가족의 서비스 이용과 심리적 변화과정

임현재 한국통합사례관리학회 2012 한국케어매니지먼트연구 Vol.7 No.-

본 연구는 일본의 인지증(치매) 고령자를 부양하고 있는 가족의 심리적 변화과정을 중심으로, 케어를 담당하는 가족의 주관적 관점에서 부양가족의 심리적 변화과정에 영향을 미치는 서비스의 검토를 목적으로 하였다. 그 결과 대부분의 가족부양자는 데이케어나 단기 입소 서비스와 같이 일시적으로 케어로부터 해방(解放) 가능한 레스파이트(respite) 서비스의 이용률이 높은 것으로 나타났다. 그리고 가족부양자의 심리적 변화과정은 불규칙적이나 <당황·부정>과 <혼란·노여움·거부>의 초기의 심리적 단계에서 현재는 <포기·납득>과 <수용>의 심리적 단계로 변화해 있었다. 또한 데이케어를 중심으로 한 레스파이트 서비스는 부양가족의 심리적 변화에 영향을 주고 있었다. 인지증(치매) 고령자의 부양가족은 데이케어를 중심으로 단기 입소 서비스와 방문 케어 서비스를 이용함으로써 심리적 변화에 균형이 잡히고 가족부양자의 이상적인 심리적 단계라고 할 수 있는 <수용>의 단계로 원활하게 이행(移行) 한다고 할 수 있다. This research is to clarify the use service and psychological change of family caregiver, focusing on the psychological change which arises in care process of family caregiver supporting elderly with dementia in Japan, to examine the use of service which has influenced the psychological change from subjective viewpoint. As a result, it shows that the percentage of the use of respite service, which enables to be released from care temporary like day care and short stay, was high in most of family caregiver. The psychological change of family caregiver although it is irregular, from the initial <embarrassment, negative> and <rejection, anger, confusion> to <divisible> and <acceptance> of current psychological step has changed. Also, use of service of respite had influenced the psychological change. In short, the psychological change of family caregiver supporting elderly with dementia is taking balance by using service as day care, shortstay and visit care, and changing to ideal psychological step of family caregiver so called <acceptance>.

합성곱 신경망(CNN)을 활용한 항공 시스템의 이상 탐지 모델 연구

임현재,김태림,송종규,김범수 항공우주시스템공학회 2023 항공우주시스템공학회지 Vol.17 No.4

Recently, Urban Aircraft Mobility (UAM) has been attracting attention as a transportation system of the future, and small drones also play a role in various industries. The failure of various types of aviation systems can lead to crashes, which can result in significant property damage or loss of life. In the defense industry, where aviation systems are widely used, the failure of aviation systems can lead to mission failure. Therefore, this study proposes an anomaly detection model using deep learning technology to detect anomalies in aviation systems to improve the reliability of development and production, and prevent accidents during operation. As training and evaluating data sets, current data from aviation systems in an extremely low-temperature environment was utilized, and a deep learning network was implemented using the convolutional neural network, which is a deep learning technique that is commonly used for image recognition. In an extremely low-temperature environment, various types of failure occurred in the system’s internal sensors and components, and singular points in current data were observed. As a result of training and evaluating the model using current data in the case of system failure and normal, it was confirmed that the abnormality was detected with a recall of 98 % or more. 최근 미래의 운송시스템으로 도심교통항공(Urban Aircraft Mobility)이 주목받고 있으며 소형 드론도 다양한 산업에서 역할을 하고 있다. 다양한 종류의 항공 시스템 고장은 추락으로 막대한 재산 및 인명 피해로 이어질 수 있다. 항공 시스템이 많이 활용되는 무기체계에서도 고장은 임무 실패의 결과를 유발한다. 본 논문에서는 항공 시스템의 이상(Anomaly)을 탐지하여 개발 및 생산 간 시스템의 신뢰도를 높이고 운용 중 사고를 예방할 수 있도록 딥러닝 기술을 활용한 이상 탐지 모델을 연구했다. 모델 훈련 및 평가 데이터로 극저온 환경에서 시스템의 전류 데이터를 활용하였으며 이미지 인식에 많이 활용되는 딥러닝 기법 합성곱 신경망(CNN; Convolutional Neural Network)을 활용하여 딥러닝 네트워크를 구현했다. 시험 대상 시스템은 극저온 환경에서 다양한 형태의 고장이 유발되었고 전륫값의 특이점이 나타났다. 시스템 정상 및 고장 데이터를 활용하여 모델을 훈련 시키고 평가한 결과 98% 이상의 재현율(Recall)로 이상 탐지하는 것을 확인했다.

Waist- to-Height Ratio as a Simple and Useful Indicator for Non-alcoholic Fatty Liver Disease in Korean Women

임현재,서민석,이혜리,심재용,강희택,이용제 대한비만학회 2016 The Korean journal of obesity Vol.25 No.1

Background: It has not been determined which obesity index might be most appropriate to predict nonalcoholic fatty liver disease in Asian populations. This study aimed to evaluate the usefulness of the waist-to-height ratio in assessing patients with nonalcoholic fatty liver disease and to identify the optimal cut-off values useful for predicting nonalcoholic fatty liver disease. Methods: Receiver operating characteristic curve analyses were conducted in order to assess the accuracy of the waist circumference, body mass index, and waist-to-height ratio for detecting nonalcoholic fatty liver disease among 616 women aged 20 years or older. To evaluate the optimal value of anthropometric indices, the Youden J-index (sensitivity+specificity-1) was used. Results: The area under the ROC curve of waist-to-height ratio was highest among anthropometric obesity indices as follows: 0.776 (0.731-0.822) for waist circumference, 0.775 (0.728-0.822) for body mass index, and 0.792 (0.748-0.836) for waist-to-height ratio, respectively. Using a waist-to-height ration cut-off value of 0.49, the sensitivity and specificity for detecting nonalcoholic fatty liver disease were 72.3 % and 74.7%, respectively. Conclusion: These results demonstrated that the waist-to-height ratio may be a better obesity index for identifying individuals at risk for nonalcoholic fatty liver disease in Korean women.

[P2-09] 미생물에 의한 인삼 ginsenoside의 aglycon으로의 전환

임현재,김혜미,전영은,윤성복,한승준,강일준 한국식품영양과학회 2008 한국식품영양과학회 학술대회발표집 Vol.2008 No.10

택사와 옥수수 수염 추출액이 개구리 피부를 통한 수분 이동에 미치는 영향

임현재 충남대학교 의과대학 지역사회의학연구소 1981 충남의대잡지 Vol.8 No.2

The effects of Alisma orientale S. and Zea mays L. water extract on the water uptke and urine flow was investigated in the intact frog. 86 frogs were divided into two groups : immersion and injection. Immersion-group was submerged in 100ml of diluted solution containing Alisma orientale S. extract(0.3%, 1g%) and Zea mays L. exract (0.3g%, 1g%), and 100ml of distilled water as a control. Injection-group was injected Alisma orientale S. extract (20mg, 60mg) and Zea mays L. extract(40mg, 120mg) into the dorsal lymphatic sac, and submerged in 100ml of distilled water. Body weight, urine flow and urinary concentration of chloride and osmolarity were measured for 1 hour interval during 3 hours under continuous oxygen supply at room temperature. The results obtained summerized as follows : 1. Relationships between urine flow rate and body weight difference of pre-and-post urine emptying were statistically significant in all cases. 2. Urine flow rates were significantly increased(P<0.05) for first 1 hour in groups injected Alisma orientale S. extract and groups immersed in Zea mays L. extract. 3. Increase rates of body weight (rate of water uptake) were increased significantly (P<0.05) for first 1 hour in groups injected Alisma orientale S. extract and groups immersed in Zea mays L. extract. 4. Urinary osmotic concentrations were inversely related to urine flow rate in all groups, and the excretion rates of osmolar particles were significantly increased(P<0.05) when urine flow level were high. 5. Urinary chloride concentration was increased for first 1 hour in the groups immersed in Alisma orientale S. extract. In the above results, it suggest that increased urine formation was due to the increased water uptake across the frog skin in both groups injected Alisma orientale S, extract and immersed Zea mays L. extract, and their mechanism of action was different.

양자화를 적용한 OpenCL 인공신경망 추론 환경 개발

임현재(Hyunjae Lim),정우근(Wookeun Jung),이재진(Jaejin Lee) 한국정보과학회 2021 한국정보과학회 학술발표논문집 Vol.2021 No.6

최소 전압 주입 방법을 이용한 직류단 션트 저항 인버터의 과변조 연구

임현재(Hyunjae-Lim),백현준(Hyunjun-Baek),하주형(Juhyung-Ha),임민철(Mincheol-Yim),이근호(Geunho-Lee) 한국자동차공학회 2019 한국자동차공학회 부문종합 학술대회 Vol.2019 No.5

한국어와 영어에 대한 단어 색인 시스템의 설계 및 구현

임현재(H J Im),최기선(K S Choi),김길창(G C Kim) 한국정보과학회 1989 한국정보과학회 학술발표논문집 Vol.16 No.2

자연언어의 연구에있어 각 단어에대한 연구가 중요한 과제이다. 특히 기계사전의 작성이나 단어들간의 모호성 해결에서 단어간의 관계 연구가 큰 역할을 하고 있다. 이러한 단어 분석 지원도구로써, 본 논문에서는 주어진 텍스트로부터 Index, Word-list, Concordance를 만드는 시스템인 KOCP를 설계 및 구현하였다.

인공지능을 활용한 항공 시스템의 이상 탐지 필요성과 방법

임현재(Hyun-Jae Im) 항공우주시스템공학회 2023 항공우주시스템공학회 학술대회 발표집 Vol.2023 No.10

열차 차상 통신용 소프트웨어의 사전 위험원 분석 연구

임현재(Yim-Hyun Jae),차기호(Gi-Ho Cha),송규연(Gyu-Youn Song) 대한전기학회 2017 전기학회논문지 Vol.66 No.9

To guarantee safety and reliability, RAMS(Reliability Availability Maintainability and Safety) activity for a communication software in train communication network is studied. In this paper, preliminary hazard analysis in RAMS activities is studied for the communication software. Preliminary hazard analysis is done through library for communication software that the specification is defined by IEC 61375. The hazards are defined, then causes and consequence for each hazard are defined. The total 36 preliminary hazards are classified. For high severity hazards are changed to acceptable level by upgrading of system requirement specification.