자산개념에 관한 연구

정상근(Jung Sang Keun) 한국국제회계학회 2001 국제회계연구 Vol.5 No.-

인공지능과 심층학습의 발전사

정상근(Sang Keun Jung) 한국정보과학회 2015 정보과학회지 Vol.33 No.10

콘크리트 구조물의 바탕체 환경조건에 따른 자착형 방수시트의 환경 성능지표 연구

정현상(Jung, Hyoun-Sang),박진상(Park, Jin-Sang),오상근(Oh, Sang-Keun),임남기(Lim, Nam-Gi) 대한건축학회 2011 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.31 No.1(구조계)

콘크리트 구조물의 환경조건에 따른 자착형 방수시트의 적용성 평가에 관한 연구

정현상(Jung Hyoun-Sang),박진상(Park Jin-Sang),오상근(Oh Sang-Keun),임남기(Lim Nam-Gi) 대한건축학회 2010 大韓建築學會論文集 : 構造系 Vol.26 No.12

While study about property of matter of self-adhesion waterproofing sheet is advanced continuously in Korea, study about property of matter by environmental condition in concrete structure is not advanced. But, recently, study by environmental condition in concrete structure was advanced partially in process for being registered as new construction technology. Before application evaluation of self-adhesion waterproofing sheet by environmental condition in concrete structure, type of self-adhesion waterproofing sheet used in Korea was reviewed in detail, basic requirement which self-adhesion waterproofing sheet should have basically was reviewed in detail and application evaluation by environmental condition in concrete structure was implemented, It is judged that self-adhesion waterproofing sheet should have adhesion about low temperature environment and humid environment and enough ability to cope with vapor dispersion, emission, influx water diffusion prevention and structure motion basically. It is judged that study where environmental condition in structure is considered enough and more specifically than now should be advanced from now.

3시간 화재 손상된 무피복 원형 CFT기둥의 잔존강도 평가

정상근(Jung, Sang-Keun),김선희(Kim, Sun-Hee),김흥열(Kim, Heung-Youl),강도안(Kang, Do-An),최성모(Choi, Sung-Mo) 대한건축학회 2010 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.30 No.1(구조계)

공황장애환자의 정신생리적 반응

정상근,조광현,정애자,박태원,황익근,Chung, Sang-Keun,Cho, Kwang-Hyun,Jung, Ae-Ja,Park, Tae-Won,Hwang, Ik-Keun 대한수면의학회 2001 수면·정신생리 Vol.8 No.1

목 적 : 정상 대조군보다 공황장애환자의 생리적 각성수준이 더 높고 생리적 유연성이 더 적을 것이다. 이러한 가정을 확인하기 위해 공황장애환자와 정상대조군사이의 정신생리반응의 차이를 알아보았다. 방 법 : 환자군은 DSM-Ⅳ의 공황장애 진단기준에 맞는 외래 및 입원 환자 10명(남성 9명, 여성 1명;연령 $47.5{\pm}14.3$세), 정상 대조군(남성 9명, 여성 1명 ; 연령 $47.3{\pm}10.1$세)은 전북의대 학생 및 전북대학교병원직원 10명으로 선정하였다. 심리적 평가항목으로서, 불안, 우울 수준은 상태특성불안척도, Beck 우울 척도, Hamilton 불안 및 우울 척도로 평가하였다. 생리적 평가항목으로서 자율신경계의 정신생리반응을 측정하였는데, 맥박, 호흡속도, 피부전도반응, 근전도 등은 J & J I-330모델을 이용하였다. 스트레스작업은 4가지로서 암산, 비디오게임, 과호흡, 스트레스사건 이야기작업을 이용하였다. 정신생리반응의 측정순서는 생리반응 측정전 약 15분간의 휴식후 각각 3분씩의 '기저기간-암산작업 기간-휴식기간(3분)-비디오게임 기간-휴식기간-과호흡 기간-휴식기간-트레스사건 이야기작업 기간'으로 하였다. 두 군사이의 스트레스작업에 따른 심리적, 생리적 평가 항목들의 차이를 통계 분석하였다. 결 과 : 대조군보다 공황장애군에서 우울, 불안수준이 유의하게 더 높았다. 생리반응 중 피부전도반응(p=.017), 근전도(p=.047), 맥박(p=.049)의 기저치가 대조군보다 공황장애군에서 유의하게 더 높았다. 또한, 피부전도반응의 경우, 과호흡시 놀람반응이 대조군보다 공황장애군에서 유의하게 더 컸다(p=.001). 맥박의 경우, 암산작업시 놀람 및 회복반응이 대조군보다 환자군에서 유의하게 더 적었다(각각 p=.007, p=.002). 환자군내에서 피부전도반응의 경우, 암산(p=.0001) 및 비디오게임(p=.021) 작업시 놀람반응이 회복반응보다 유의하게 더 컸다. 또한 호흡반응의 경우, 환자군내에서 과호흡시(p=.035) 놀람반응보다 회복반응이 유의하게 더 컸다. 결 론 : 상기 결과로 미루어보아, 공황장애환자는 정상 대조군보다 기저기에서 대부분 자율신경계의 생리적 각성수준이 더 높았으나, 측정항목에 따라 생리적 유연성의 기복이 있었다. 따라서, 공황장애환자의 치료시 자율신경계의 각성수준을 감소시키고, 일부 스트레스에 대한 생리적 유연성 회복이 필요하다고 생각한다. Objectives: An Increased level of psychophysiologic arousal and diminished physiologic flexibility would be observed in patients with panic disorder compared with a normal control group. We investigated the differences of psychophysiologic response between patients with panic disorder and normal control to examine this hypothesis. Methods: Ten Korean patients with panic disorder who met the diagnostic criteria of DSM-IV were compared with 10 normal healthy subjects. In psychological assessment, levels of anxiety and depression were evaluated by State-Trait Anxiety Inventory, Beck's Depression Inventory and Hamilton Rating Scale For Anxiety and Depression. Heart rate, respiration rate, electrodermal response, and electromyographic activity were measured by biofeedback system (J & J I-330 model) to determine psychophysiologic responses on autonomic nervous system. Stressful tasks included mental arithmetic, video game, hyperventilation, and talking about a stressful event. Psychophysiologic responses were measured according to the following procedures : baseline(3 min)-mental arithmetic (3 min)-rest (3 min)-video game (3 min)-rest (3 min)-hyperventilation (3 min)-rest (3 min)-talking about a stressful event (3 min). Results: The baseline level of anxiety and depression, electrodermal response (p=.017), electromyographic activity (p=.047) and heart rate (p=.049) of patients with panic disorder were significantly higher than those of the normal subject group. In electrodermal response, patient group had significantly higher startle response than the control group during hyperventilation (p=.001). Startle and recovery responses of heart rate in the patient group were significantly lower than responses in the control group during mental arithmetic (p=.007, p=.002). In electrodermal response of the patient group, startle response was significantly higher than recovery response during mental arithmetic (p=.000) and video game task (p=.021). Recovery response was significantly higher than startle response in respiratory response during hyperventilation. Conclusion: The results showed that patients with panic disorder had higher autonomic arousal than the control group, but the physiologic flexibility was variable. We suggest that it is helpful for treatment of panic disorder to decrease the level of autonomic arousal and to recover the physiologic flexibility in certain stressful event.

전환장애환자의 정신생리적 반응

정상근 ( Sang Keun Chung ),최명수 ( Myung Soo Choi ),정애자 ( Ae Ja Jung ),황익근 ( Ik Keun Hwang ) 전북대학교 의과학연구소 2002 全北醫大論文集 Vol.26 No.1

연구목적: 저자들은 전환장애환자들의 정신생리적 반응양상을 분석하여 진단 및 치료에 적용하고자 본 연구를 시행하였다. 연구방법: DSM-IV진단기준상 전환장애로 진단된 환자 15명과 건강한 대조군 20명을 대상으로 하였다. 두 군 모두 불안상태를 평가 후, 정신생리적 변인들(수지온도, 전두근 근전도, 맥박, 전기피부저항)을 평가하였다. 정신생리적 변인들은 기저기, 스트레스작업(암산, 이야기 작업) 기간, 휴식기로 나누어 측정하였다. 연구결과: 전환장애 환자군이 정상 대조군보다 해밀턴 불안척도점수, 상태불안, 특성불안수준이 유익하게 더 높았다. 정신생리적 반응은 다음과 같았다: 첫째, 기저기동안 근전도와 맥박수준이 유의하게 더 높았다. 둘째, 암산작업직후기간동안 모든 생리적 변인들의 놀람반응이 유의하게 더 적었다. 셋째, 암산과 이야기작업기간동안 수지온도를 제외한 근전도,맥박, 전기피부반응의 회복반응이 유의하게 더 낮았다. 또한 저자들은 전환장애환자에서 암산작업기간동안 심박동수의 회복반응과 불안수준사이에 유의한 상관관계가 있었다. 결론: 이상의 결과는 전환장애환자가 정상대조군보다 자율신경계 각성수준이 더 높고, ‘생리적 유연성’ 또는 ‘자율신경계의 유연성’이 감소되어있음을 시사한다. 따라서, 이에 대한 적절한 약물치료(bezodia-zepine계 등), 정신치료(환기, 최면요법 등), 정신생리적 치료법(biofeedback 등)의 병행이 필요하다. Objective: We examined the psychophysiologic response pattern in Korean female patiens with conversion disorder(CD). Methods: 15 female patients with conversion disorder and 20 healthy female subjects were evaluated by Spielberger`s State-Trait Anxiety Inventory, four psychophysiologic measures i.e. skin temperature (ST), electromyographic activity(EMG), heart rate(HR), and elctordermal response(EDR) during rest and two psychologically stressful tasks(mental arithmetic, TM; talk about a stressful event, TT). Results: CD group showed : 1)significantly higher EMG, HR level during baseline, 2)significantly lower in the startle response of all psychophysiologic measure during TM. 3)significantly lower change in the recovery response(RR) of EMG, HR, and EDR during stressful tasks than control group (by t-test). We found that there were significantly positive correlations between RR during TM and state (r=551, p<.05)& trait(r=.549, p<.05) anxiety in CD group. Conclusion: Above results suggest that patients with conversion disorder show higher autonomic arousal than normal control group and decreased physiologic flexibility or reduced autonomic flexibility.

용접철망을 배근한 거푸집 데크플레이트 슬래브의 휨거동

정상근(Jung Sang-Keun),최준형(Choi Joon-Hyung),양일승(Yang Il-Seung),문연준(Moon Youn-Joon),김순철(Kim Soon-Chul) 대한건축학회 2008 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.28 No.1(구조계)

The object of this study is investigated to flexural behaviors of deck-plate slabs using wire mesh. The wire mesh instead of deformed bars are used to improve convenience of construction. Test variables are concrete topping thicknesa(75㎜, 100㎜), types of main bars(1-D6, 2-D6, 3-D6) in compression and tension regions, and width in bottom face of deck plate(58㎜, 68㎜). The vertical loading by monotonic are applied to investigate the yielding strength, maximum strength, initial stiffness and failure modes. Test results are follows ; (1) Higher stiffness and strength was shown that more the wire mesh was, the thicker the slab was. (2) In specimens using wire mesh instead of reinforced bars, experiment results is 1.13~1.83 times that those of calculated results.

고층건물 적용 설계사례를 통한 콘크리트충전 각형강관기둥의 실용화 가능성 평가

정상근(Jung Sang-Keun),송경철(Song Kyung-Chul),박수희(Park Su-Hee),원용안(Won Yong-Ahn),최성모(Choi Sung-Mo) 대한건축학회 2009 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.29 No.1(구조계)

The purpose of this study is to review, examine and analyze the cases of employing CFT columns for high-rise buildings in Korea and overseas in order to investigate the feasibility of employing the columns for the construction of high-rise buildings. For this, fire-resistance of non-coated square CTF columns was examined for modeling high-rise buildings (10 stories & 50 stories). Fire-resistance of the buildings for which non-coated square CFT columns were used was evaluated using the fire-resistance design equations derived from the previous studies. This study showed that the columns on the upper floors of the 50-story-skyscraper could meet the legal requirement of 3-hour-fire resistance without fireproofing coating. And, it was found that reinforcing the fire-resistance of concrete or employing fireproofing coating outside the columns would satisfy the legal requirement of 1-hour and 2-hour fire-resistance for the middle floors and lower floors, respectively. As concrete strength increases, fire-resistance improves and the possibility of satisfying 3-hour-requirement without coating increases. As span length increases, the axial load ratio on the column increases and fire-resistance deteriorates, which means that the possibility of 3-hour-fireproofing without coating diminishes. Consequently, it is needed to restrain axial load ratio through the proper measures in structural design.

한국인 양극성장애 환자에서 endothelial nitric oxide synthase 유전자 다형성

정상근 ( Sang Keun Chung ),최명수 ( Myong Su Choi ),양종철 ( Jong Chel Yang ),박태원 ( Tae Won Park ),정영철 ( Yong Chul Chung ),정애자 ( Ae Ja Jung ),황익근 ( Ik Keun Hwang ) 전북대학교 의과학연구소 2009 全北醫大論文集 Vol.33 No.1

Objectives: Although endothelial nitric oxide synthase(eNOS) gene has been investigated in many neuropsychiatric disorders, results were controversial and even contradictory. We performed this study to examine the genotypes and the allele frequency distribution of eNOS gene in Korean bipolar disorder patients, and the differences between them and healthy controls. Methods: eNOS genotypes in 51 bipolar disorder patients and 121 healthy controls were analyzed by polymerase chain reaction and amplified refractory mutation system. Results: When genotypes of eNOS were classified as a/a, a/b, b/b, there were no statistical differences in genotypes between two groups. There were also no statistical differences in allele frequency between two groups. Conclusions: These results suggest that eNOS gene may not be causally related to the development of bipolar disorder in Korean population.