한국 주요정신장애의 유병률 및 관련요인 : 2006 전국정신질환역학조사

조맹제,장성만,함봉진,정인원,배안,이영문,안준호,원승희,손정우,홍진표,배재남,이동우,조성진,박종익,이준영,김진영,전홍진,이해우 大韓神經精神醫學會 2009 신경정신의학 Vol.48 No.3

Objectives The aims of this study are to estimate the prevalence of the DSM-IV psychiatric disorders in the Korean population using the Korean version of Composite International Diagnostic Interview (K-CIDI), and to compare those with previous studies. Methods The Korean Epidemiologic Catchment Area study Replication (KECA-R) was Conducted between August 2006 and April 2007. The sampling of the subjects was carried out across 12 catchment areas. A multistage, cluster sampling design was adopted. The target Population included all eligible residents aged 181o 64 years. Face-to-face interviews were conducted with the Korean version of Composite International Diagnostic Interview (K-CIDI) based on the DSM-IV (N=6,510, response rate=81.7%). Results A total of 6,510 participants completed the interview. The lifetime and 12-month prevalence rates for all types of DSM-IV disorders were 30.0% and 17.3%, respectively. Those of Specific disorders were as follows : 1) alcohol use disorder, 16.2% and 5.6% ; 2) nicotine use disorder, 9.0% and 6.0% ; 3) specific phobia, 3.8% and 3.4% ; 4) major depressive disorder, 5.6% and 2.5% ; and 5) generalized anxiety disorder, 1.6% and 0.8%. Data relating to nicotine and alcohol use disorder revealed a very high male/female ratio. Mood disorder and anxiety disorder were more prevalent among females than males. Conclusion The prevalence of psychiatric disorders was high. In comparison with other studies, remarkable differences in the distribution of psychiatric disorders across the country and times were observed.

정신보건 관련 시설의 재원 기간 및 관련 요인에 대한 연구

조성진,이병조,조맹제,김용익,서동우,정인과 大韓神經精神醫學會 2006 신경정신의학 Vol.45 No.4

Object : This study was aimed to find the contributing factors that influence the length of stay in mental health related facilities and to present future direction for the mental health policy. Methods : The 1,875 patients who are aged between eighteen and sixty-five are chosen by the stratified random sampling from ten psychiatric hospitals, six psychiatric nursing facilities and five homeless asylums. We investigate about length of stay of all subjects by sociodemographic characteristics, socioeconomic status, functional status, disease related characteristics and analyse contributing factors. Results : From total subjects, average length of stay was 1,906 days, and facilities, where subjects are institutionalized, explains 40% of length of stay. Other related factors are female, old age, single, lack of supportive system before admission and after discharge, medical assistance type I, unavailable of public transportation and utility, long duration of illness, and psychotic disorder. Conclusion : For lowering the rate of long-term hospitalization, evaluation of appropriateness is needed for admission to nursing facility and homeless asylum and make up for the medical payment system and the supportive system from family and community.

볼엔드밀 가공에서 형상정밀도에 관한 실험적 연구

조병무,유익수,이성휘,이동주 한국공작기계학회 2008 한국공작기계학회 추계학술대회논문집 Vol.2008 No.-

In manufacturing process, the. free-formed surface machining using a ball end mill of CNC machining center is important and the geometric accuracy of a 3D workpiece is effected by the cutting characteristics. Machining error is defined the normal distance between designed surface and actual tool path with tool deflection. This is inevitably caused by the tool deflection, tool wear, thermal effect and machine tool errors and so forth. In this study, the geometric accuracies such as roundness in semi-cylinder, free-formed profile and surface roughness were measured using a Coordinate Measurement Machine(CMM) and a contact type surface roughness measuring device. The results will be useful as a guidance for cutting condition to improve the geometrical accuracy of free-formed surface in ball end milling.

정신보건관련시설 입원(소)자의 주요 정신장애 유병률 : 전국 20개 시설의 입원(소)자를 대상으로

조성진,조맹제,서동우,함봉진,홍진표,배재남,이준영,이동우,박종익,전홍진,김성주,김용익 大韓神經精神醫學會 2004 신경정신의학 Vol.43 No.6

Objectives : One of the objectives of this study is to estimate the prevalence rates of psychiatric diagnoses in the combined populations of psychiatric hospitals, psychiatric nursing facilities and homeless asylums using the Korean version of the Composite International Diagnostic Interview (K-CIDI), which is a comprehensive and fully standardized interview schedule to assess psychiatric disorders for diagnosis. The Other objective is to compare with previously studied prevalence rates of Psy-chiatric diagnoses using the results of this study. Methods : The study subjects, aged from 181o 64 years, were randomly selected from 64,582 institutionalized population of psychiatric hospitals, Psychiatric nursing facilities and homeless asylums as of 30, June, 2001. Twelve trained interviewers administered the K-CIDI to the selected respondents. A total of 1,875 respondents (male 1,194, female 681) completed the interview. Results : The lifetime and one year prevalences of any diagnosis excluding nicotine dependence · withdrawal, anxiety disorder, eating disorder, somatoform disorder were 88.2% (male 88.1%, female 88.3%), and 65.8% (male 62.7%, female 73.7%), respectively. The lifetime and one year prevalences of schizophrenia and other psychotic disorders were 78.5% (male 75.3%, female 83.7%), and 56.8% (male 51.9%, female 64.8%), respectively. The lifetime and one year prevalences of alcohol use disorder (dependence/abuse) were 26.7% (male 37.9%, female 8.3%), and 8.7% (male 12.8%, female 2.1%), respectively. The lifetime and one year prevalences of mood disorder were 18.1% (male 13.5%, female 25.8%), and 10.4% (male 7.2%,female 16.9%), respectively. The lifetime and one year prevalences of schizophrenia and other psychotic disorders were comparable with the 2001 community survey by 1.19% to 1.32%, and 0.51% to 0.61%, respectively. The lifetime and one year prevalences of schizophrenia were also comparable by 0.16% to 0.28%, and 0.16% to 0.25%, respectively. There were no significant changes of prevalence rates when correction were applied to other psychiatric diagnosis. Conclusion : The results of this study could be used for evaluating the distribution of psychiatric diagnoses in mental health related facilities and for planning mental health policies.

한국 정신장애의 역학 조사 연구[I] : 각 정신장애의 유병률

조맹제,함봉진,김장규,박강규,정은기,서동우,김선욱,조성진,이준영,홍진표,최용성,박종익,이동우,이기철,배재남,신정호,정인원,박종한,배안,이충경 大韓神經精神醫學會 2004 신경정신의학 Vol.43 No.4

Objectives : This study aims to estimate the prevalence of the DSM-IV psychiatric disorders in Korean population using the Korean version of Composite International Diagnostic Interview (K-CIDI). Methods : Subjects were selected by taking multi-stage, cluster samples of 7,867 adult household residents, 18 to 64 years of age, in ten catchment areas. Total 78 trained interviewers administered the K-CIDI to the selected respondents, from June 1 to November30,2001. Results : Total 6,275 respondents completed the interview. Some 33.5% of respondents reported at least one lifetime disorder, 20.6% reported at least one-year disorder, and 16.7% reported at least one-month disorder. The most common lifetime disorders were alcohol abuse/dependence (17.24%), nicotine dependence/withdrawal (11.19%), specific phobia (5.16%), and major de-pressive disorder (4.25%). The lifetime prevalence of substance abuse/dependence (0.25%) and schizophrenia (0.16%) was very low. Nicotine and alcohol use disorder showed very high male/female ratio. Mood disorder and anxiety disorder were more prevalent among female than male. Conclusion : The prevalence of psychiatric disorders was high. In comparison with other studies, remarkable differences in distributions of psychiatric disorders across the areas and times were observed.

Co(Ⅲ)/Co(Ⅱ) 및 Fe(Ⅲ)/Fe(Ⅱ) 산화환원계에 의한 폴리에틸렌글리콜류의 매개전해산화

김익성,박정훈,박승조 동아대학교 환경문제연구소 2006 硏究報告 Vol.28 No.1

Mediated electrochemical oxidation (MEO) is an aqueous process which oxidizes organics electrochemically at low temperatures and ambient pressures. The process can be used to treat mixed wastes containing hazardous organics. This paper has studied MEO of polyethylene glycols (PEGs) in nitric acids by Fe/Fe(Ⅱ) and Co/Co(Ⅱ) system. It is investigated current density, supporting electrolyte concentration, hydraulic retention time, removal efficiency by PEGs continuous MEO. Removal efficiency of PEGs, electrical charge and reaction time by mediated electrochemical oxidation was excellent in Co/Co(Ⅱ) redox system than Fe/Fe(Ⅱ) redox system, indicating mediated electrochemical oxidation removal efficiency was 100 percent.

전원잡음 제거를 위한 SCF 설계에 관한 연구

柳喆魯,趙成翊 全北大學校 1990 論文集 Vol.32 No.-

SCF(Switched Capacitor Filter) can be easily integrated because of consisting of switches, capacitors and OP AMPs(Operational Amplifier). And resently, SCF simulated resistor by the ratio of capacitors and fc(clock frequency) has been widely used for voice frequency baseband filtering. In this paper, therefore, when voice band signal frequency had been selected by SCF, we designed Chebyshev 3rd order high pass SCF by applying SC(Switched Capacitor) method to remove the power-line frequency noise from input signal, and then researched the characteristics of it by SCANP(SCF simulator). Also, we performed the LAYOUT of Chebyshev 3rd order high pass SCF using 3㎛ CMOS N-well process parameters.

고주파수용 필터 설계를 위한 자이레이터 회로에 관한 연구

金石鎬,趙成翊,金東龍 全北大學校 1991 論文集 Vol.33 No.-

Switched-capacitor(SC) circuits have already been established in audio frequency range. However, SC circuits are not suitable for high frequency filters, because of the necessity of anti-aliasing filters and the limitation of high-frequency characteristics due to GBW(Gain-Band-Width) products of operational amplifiers. To overcome those disadvantages, a gyrator filtering techniques have been proposed. LC simulation method using gyrators is readily available to abtain low-sensitivity active RC filters. In this paper, highly linear MOS transconductor with the gain factor controllable by offering offset voltage is presented, and to validate transconductor characteristics, computer simulation using PSPICE was performed. Gyrator circuit is designed using MOS transconductor circuits, and for filter design, floating inductor, floating resistor and grounded resistor which are simulated by gyrator circuits are presented.

PCM 음성신호 복원 처리를 위한 RCV 필터 IC 설계

金東龍,趙成翊 全北大學校 1995 論文集 Vol.40 No.-

음성통신 시스템의 수신단에서 PCM(Pulse-Code-Modulation), 신호를 아날로그 음성신호로 변환하는 과정에서 고주파성분 (sin x)/x 성분 및 크기 왜곡 등이 발생되기 때문에 이 성분을 제거하여 보상하기 위한 RCV(Receive) 필터 회로가 필요하다. 본 논문에서는 AAF(Anti-Aliasing-Filter), SMF(Smoothing-Filter), RCV SCF(Switched-Capacitor-Filter)로 구성된 RCV 필터를 설계하는 방법을 제시하여 입력신호와 동일한 신호를 전송 받을 수 있게 하였다. 제안된 방법에 의하여 설계된 RCV 필터를 SPICE와 SCANAP를 이용하여 특성조사한 결과 설계조건과 일치함을 확인하였고, 집적화를 위해 MOSIS CMOS 2㎛ 설계규칙에 따라 레이아웃 하였다. The processing to transform the PCM(Pulse-Code-Modulation) signal into analog voice signal is accompanied with the high-frequency, the (sin x)/x and the amplitude distortion at the receive stage of voice signal telecommunication system. For this reason, there is necessity for Rcv(Receive) filter to compensating as being remove the components induced in the transform processing. In this paper, we proposed the design the design method of RCV filter block consisted of AAF(Anti-Aliasing-Filter, SMF(Smoothing), and RCV SCF(Switched-capacitor-Filter) to reconstruct the same signal as input signal. The designed RCV filter by the proposed method was in accord with specification in view of the results simulated on SPICE and SCANAP, and layouted by Mosis Cmos 2-um design rule for integrated circuits.

전류모드방식 적분기의 구조개선을 통한 성능비교

이근호,조성익,방준호,김동용 全北大學校 論文集 Vol.42 No.-

In this paper, a CMOS fully-differential complementary current-mode integrator adequate to design low-voltage, low-power and high frequency application circuit. The designed fully-differential complementary current-mode integrator has a new architecture. When the improved integrator is compared with proposed current-mode integrator, the new integrator has lower power dissipation and higher frequency range. The small signal analysis results are showed in table.1 with several improved characteristics. And the results of PSPICE simulation using ORBIT company's 1.2㎛ CMOS n-well processing parameter shows fig. 3.