필터와 정규화를 이용한 적외선 영상 대조비 처리 기법

나건우(KUNWOO NA) 대한전자공학회 2019 대한전자공학회 학술대회 Vol.2019 No.11

정신보건법 관련 격리 강박 지침의 개정안 개발

김건우(Kunwoo Kim),홍진표(Jin Pyo Hong),이기경(Ki Kyoung Yi),나리지(Ri Ji Na),용효중(Hyo Joong Yong),이유진(Yu Jin Lee),황태연(Tae-Yeon Hwang),이종국(Jong-Gook Lee) 대한사회정신의학회 2012 사회정신의학 Vol.17 No.1

연구목적 : 본 연구의 목적은 첫째, 정신질환자의 인권 보호를 위한 격리 강박 지침 개정안을 개발하는 것이다. 둘째, 현 격리 강박 지침의 문제 점을 고찰하고 선진국의 국제적인 기준을 소개하는 것이다. 방 법 : 우리나라의 격리 강박 지침과 관련 법령을 미국, 영국, 호주, 뉴질랜드 등 선진국의 지침 및 법령과 비교 고찰하였다. 정신건강의학과 전문의, 간호사, 사회복지사, 국가인권위원회, 의료관리학 교수 등의 전문가를 대상으로 설문조사와 자문회의를 실시하였다. 결 과 : 기존 격리 강박 지침의 적응증과 지시 규정은 정신보건법과 모순되어 지침의 수정이 필요하겠다. 선진국의 지침과 비교하여 기존 지침의 내용은 세부적이지 못하여, 의사와 간호사의 의무가 명확히 구분되어 있지 않다. 의사의 지시 형태, 의사의 의무적인 진찰, 의무 기록, 허용된 격리 강박 시간 등에 대한 명확한 내용이 필요하겠다. 결 론 : 개정 지침이 정신보건 상황에서 실제적으로 사용될 수 있을 것이며 정신질환자의 인권 향상에 기여할 것이다. Objectives : The primary purpose of this study was to develop revised guidelines for seclusion and restraint to protect the human rights of mentally ill patients. The second purpose was to critically review the current status of guidelines and to introduce international standards of developed countries. Methods : We reviewed current guideline and administrative status in Korea and examined guidelines and regulations for seclusion and restraint in developed countries: U.S.A., United Kingdom, Australia, and New Zealand. In addition, survey of related specialists, advisory conference: advice of related and administrative experts, public hearing were done. Results : Current recipient indications and order regulations concerning seclusion and restraint guidelines contradict those of the Mental Health Act, thus, modification is needed. Compared to other countries, current seclusion and restraint guidelines are less specific. The responsibilities of physicians and nurses have not been clearly divided, and details concerning the form of the physician’s order, physician’s obligatory examination, medical recording and allowed time of seclusion and restraint are in need of clarification. The new seclusion and restraint guidelines have been revised and reviewed by experts in mental health field. Conclusion : Revised guidelines could be used practically in real life mental health situations and strengthen of human rights of current psychiatric inpatients.

A Current Sensor Fault-detecting Method for Onboard Battery Management Systems of Electric Vehicles Based on Disturbance Observer and Normalized Residuals

Wooyong Kim,Kunwoo Na,Kyunghwan Choi 제어·로봇·시스템학회 2023 International Journal of Control, Automation, and Vol.21 No.11

This study presents a current sensor fault-detecting method for an electric vehicle battery management system. The proposed current sensor fault detector comprises the nonlinear battery cell model, the Luenbergertype state estimator, and a disturbance observer-based current residual generator. The features of this study are summarized as follows: 1) A nonlinear state space representation of the battery cell model is derived so that the disturbance observer considering the engaged current as an external disturbance can be applied, 2) a nonlinear model-based state observer and disturbance observer are combined to deal with the state of charge estimation as well as the unknown current estimation and 3) the concept of the normalized residual is introduced for current sensor fault detection criteria. Because the proposed method can estimate the engaged current whether the current measurement is available or not, the residual between the estimated current and measured current can capture the current sensor fault. Additionally, the normalization process ensures the current sensor fault diagnosis can be realized regardless of the magnitude of the engaged current. The performance of the proposed current sensor fault algorithm was experimentally verified under several magnitudes of engaged current scenarios using a single battery cell.

Clinical Practice Guidelines for Prenatal Aneuploidy Screening and Diagnostic Testing from Korean Society of Maternal-Fetal Medicine: (2) Invasive Diagnostic Testing for Fetal Chromosomal Abnormalities

Lee Ji Yeon,Kwon Ji Young,Na Sunghun,Choe Seung-Ah,Seol Hyun-Joo,Kim Minhyoung,김민아,Park Chan-Wook,Kim Kunwoo,Ryu Hyun Mee,Hwang Han-Sung,Shim Jae-Yoon 대한의학회 2021 Journal of Korean medical science Vol.36 No.4

The Korean Society of Maternal Fetal Medicine proposed the first Korean guideline on prenatal aneuploidy screening and diagnostic testing, in April 2019. The clinical practice guideline (CPG) was developed for Korean women using an adaptation process based on good-quality practice guidelines, previously developed in other countries, on prenatal screening and invasive diagnostic testing for fetal chromosome abnormalities. We reviewed current guidelines and developed a Korean CPG on invasive diagnostic testing for fetal chromosome abnormalities according to the adaptation process. Recommendations for selected 11 key questions are: 1) Considering the increased risk of fetal loss in invasive prenatal diagnostic testing for fetal genetic disorders, it is not recommended for all pregnant women aged over 35 years. 2) Because early amniocentesis performed before 14 weeks of pregnancy increases the risk of fetal loss and malformation, chorionic villus sampling (CVS) is recommended for pregnant women who will undergo invasive prenatal diagnostic testing for fetal genetic disorders in the first trimester of pregnancy. However, CVS before 9 weeks of pregnancy also increases the risk of fetal loss and deformity. Thus, CVS is recommended after 9 weeks of pregnancy. 3) Amniocentesis is recommended to distinguish true fetal mosaicism from confined placental mosaicism. 4) Anti-immunoglobulin should be administered within 72 hours after the invasive diagnostic testing. 5) Since there is a high risk of vertical transmission, an invasive prenatal diagnostic testing is recommended according to the clinician's discretion with consideration of the condition of the pregnant woman. 6) The use of antibiotics is not recommended before or after an invasive diagnostic testing. 7) The chromosomal microarray test as an alternative to the conventional cytogenetic test is not recommended for all pregnant women who will undergo an invasive diagnostic testing. 8) Amniocentesis before 14 weeks of gestation is not recommended because it increases the risk of fetal loss and malformation. 9) CVS before 9 weeks of gestation is not recommended because it increases the risk of fetal loss and malformation. 10) Although the risk of fetal loss associated with invasive prenatal diagnostic testing (amniocentesis and CVS) may vary based on the proficiency of the operator, the risk of fetal loss due to invasive prenatal diagnostic testing is higher in twin pregnancies than in singleton pregnancies. 11) When a monochorionic twin is identified in early pregnancy and the growth and structure of both fetuses are consistent, an invasive prenatal diagnostic testing can be performed on one fetus alone. However, an invasive prenatal diagnostic testing is recommended for each fetus in cases of pregnancy conceived via in vitro fertilization, or in cases in which the growth of both fetuses differs, or in those in which at least one fetus has a structural abnormality. The guidelines were established and approved by the Korean Academy of Medical Sciences. This guideline is revised and presented every 5 years.

액티브 시니어의 시각 피로도 연구

조혜숙(Hyesuk Cho),나윤혜(Yoonhye Na),심영보 (Youngbo Sim),이장우(Jangwoo Lee),박건우(Kunwoo Park) 한국콘텐츠학회 2018 한국콘텐츠학회논문지 Vol.18 No.8

새로운 IT 기술과 디지털 기기는 빠른 속도로 발달하며 업무 환경 및 일상생활을 비롯한 사회적 환경을 변화시키고 있다. 이러한 변화에 대해 기존의 고령자와는 달리 액티브 시니어들은 적극적으로 적응해가고 있지만 오랜 시간동안 컴퓨터를 사용하는 이들의 눈 건강에 대한 연구는 많지 않다. 본 연구에서는 청년집단과 액티브 시니어를 대상으로 컴퓨터 작업으로 인한 시각 피로도에서 차이가 있는지를 알아보고 그 결과를 바탕으로 시니어에게 적절한 컴퓨터 작업 시간에 대한 가이드라인을 제공하고자 하였다. 객관적 시각 피로도는 눈 깜박임 횟수, 눈을 깜박이지 않고 참을 수 있는 시간, 안구표면 온도를 측정하였고 주관적 눈 피로도는 설문지를 이용하였다. 실험 결과, 눈 깜박임 횟수, 안구 표면 온도, 주관적 눈 피로도는 실험전과 후에 유의한 변화를 보였다. 집단 간 차이는 모든 측정치에서 관찰되지 않았고 따라서 30여분의 컴퓨터 작업 시간은 시니어에게 적절한 것으로 판단된다. This study aimed to examine whether there was difference on visual fatigue between active seniors and young people, and to provide a guideline for appropriate computer use time for seniors. Blinking rate, maximal blinking interval, temperature of the ocular surface, visual fatigue questionnare were evaluated. The blinking rate, ocular surface temperature, visual fatigue showed significant change before and after the tasks. There was no difference between the two groups and thus, about 30-minute computer work appeared to be appropriate for seniors.

우리나라 외래치료명령제의 시행과 개선방향

이유진,용효중,김건우,나리지,이기경,황태연,이종국,홍진표 대한생물치료정신의학회 2011 생물치료정신의학 Vol.17 No.2

Objectives:Since the order for medical treatment as outpatient has begun in Korea, there have been no requests due to the absence of specific details relating to its enforcement and lack of understanding of related specialists. We reviewed current guidelines and administrative conditions for order for medical treatment as outpatient in Korea, and examined examples of operation and related regulations of developed countries. Methods:Korean studies concerning development of the order for medical treatment as outpatient were inquired. We investigated the guidelines of other countries including U.S.A., Australia, United Kingdom and Canada. The survey of related specialists for the improvement of order for medical treatment as outpatient was performed. Results:Related specialists agreed that current order for medical treatment as outpatient needed more detailed guidelines for candidate patients, processes and management for noncompliance. Additionally, majority of the specialists suggested that candidates for order for medical treatment as outpatient should be extended for not only hospitalized patients but also patients in community. Conclusions:We reviewed detailed considerations regarding candidate recipients within current legislation, complemented post-enforcement report, management procedures, and stipulated actions for noncompliance, to be used as practical guidelines for application. More fundamental measures than complementation of guidelines, such as modification of related legislature will be needed to increase usage, and further details with reference to confidentiality of recipients and safety measures and financial support of treatment personnel will be needed.

Clinical Practice Guidelines for Prenatal Aneuploidy Screening and Diagnostic Testing from Korean Society of Maternal-Fetal Medicine: (1) Prenatal Aneuploidy Screening

Choe Seung-Ah,Seol Hyun-Joo,Kwon Ji Young,Park Chan-Wook,Kim Minhyoung,이지연,Kim Min-A,Hwang Han-Sung,Na Sunghun,Shim Jae-Yoon,Kim Kunwoo,Ryu Hyun Mee 대한의학회 2021 Journal of Korean medical science Vol.36 No.4

In 2019, the Korean Society of Maternal-Fetal Medicine developed the first Korean clinical practice guidelines for prenatal aneuploidy screening and diagnostic testing. These guidelines were developed by adapting established clinical practice guidelines in other countries that were searched systematically, and the guidelines aim to assist in decision making of healthcare providers providing prenatal care and to be used as a source for education and communication with pregnant women in Korea. This article delineates clinical practice guidelines specifically for maternal serum screening for fetal aneuploidy and cell-free DNA (cfDNA) screening. A total of 19 key questions (12 for maternal serum and 7 for cfDNA screening) were defined. The main recommendations are: 1) Pregnant women should be informed of common fetal aneuploidy that can be detected, risks for chromosomal abnormality according to the maternal age, detection rate and false positive rate for common fetal aneuploidy with each screening test, limitations, as well as the benefits and risks of invasive diagnostic testing, 2) It is ideal to give counseling about prenatal aneuploidy screening and diagnostic testing at the first prenatal visit, and counseling is recommended to be given early in pregnancy, 3) All pregnant women should be informed about maternal serum screening regardless of their age, 4) cfDNA screening can be used for the screening of trisomy 21, 18, 13 and sex-chromosome aneuploidy. It is not recommended for the screening of microdeletion, 5) The optimal timing of cfDNA screening is 10 weeks of gestation and beyond, and 6) cfDNA screening is not recommended for women with multiple gestations. The guideline was reviewed and approved by the Korean Academy of Medical Sciences.