인공 신경망을 이용한 아세틸렌 전환기 모델링

주은정,박선원 ( Eun Jung Joo,Sun Won Park ) 한국화학공학회 1996 화학공학의이론과응용 Vol.2 No.2

점토 광물질 발효 산물 급여가 육계의 생산성 및 면역 증강에 미치는 영향

주은정,정수진,손장호,조진국,윤병선,남기택,황성구,Joo, E.J.,Jung, S.J.,Son, J.H.,Cho, J.K.,Youn, B.S.,Nam, K.T.,Hwang, S.G. 한국가금학회 2007 韓國家禽學會誌 Vol.34 No.3

본 연구에서는 Ross strain-208 브로일러 수컷 36,800 수를 기본 사료만 급여한 대조구와 기본 사료에 0.3% 점토 광물질 발효 산물을 첨가 급여한 처리구로 나누어 5주간 사양 시험을 시행하였고, 사육 후 육계의 최종 체중 및 일당 증체량, 육성율, 사료 섭취량, 사료 효율, 생산 지수 등에 미치는 영향을 조사하였다. 그 결과, 최종 체중은 점토 광물질 발효 산물을 0.3% 첨가 급여한 처리구가 대조구에 비해 유의성은 없으나 약 18.5% 증가하였고, 일당 증체량은 약 18.2% 유의하게 증가한 것으로 나타났다(p<0.05). 사료 섭취량과 처리구가 대조구보다 유의하게 21.4% 증가하였고, 사료 효율은 유의성은 없으나 약 2.7% 증가한 것으로 나타났다. 특히 육성율과 생산 지수는 처리구가 대조구에 비해 유의하게 각각 4.4%와 4.9% 증가하였다(p<0.05). 또, ND(뉴캐슬병)와 IBD(전염성 F낭병)의 백신을 음용 투여하였을 때의 항체 역가는, 0.3 % 점토 광물질 발효 산물 첨가구가 대조구에 비해 유의성은 없으나 각각 13.8%와 15.7% 높은 것으로 나타났다. 이상의 결과로부터 점토 광물질 발효 산물의 첨가급여는 육계의 생산성과 면역 기능을 증진시켜 항생제를 저감한 친환경적인 고품질 육계 생산에 도움이 될 것으로 사료되었다. A feeding trial was conducted to study the effects of dietary supplement of fermented clay mineral (FCM) on the growth performance and immune stimulation in broiler chickens. A total of 36,800 broilers, (of) Ross strain-208, were randomly allotted into 2 experimental (diet) groups. Control group was fed the basal diet (corn-soybean meal based), and treatment group was fed the natural clay mineral that was fermented with aboriginal microorganisms at $37^{\circ}C$ for 72 h. Feed and water were provided ad libitum throughout the experiment for 5 weeks of experimental feeding period. Daily weight gain of treatment group fed 0.3% fermented clay mineral was significantly increased in comparison with control group. Feed intake of treatment group was significantly increased 21.4% (p<0.05), and feed efficiency was also increased 2.7% compared to control group. Especially, growth rate and production index of treatment group were significantly higher as much as 4.4% and 4.8%, respectively, than those of control group (p<0.05). By the feeding of dietary 0.3 % FCM, the antibody productions against Newcastle Disease and Infectious Bursal Disease antigens were shown to increase 13.8 % and 15.7 %, respectively, more than control group chickens. From these results, it appears that the supply of fermented clay mineral at 0.3 % level in the broiler chicken diet could enhance the growth performance and immune stimulation of broiler chickens.

해저터널의 그라우팅 최적 설계를 위한 수치해석적 연구

주은정,김용기,신종호,권오엽,Joo, Eun-Jung,Kim, Yong-Kye,Shin, Jong-Ho,Kwon, Oh-Yeob 한국터널지하공간학회 2010 한국터널지하공간학회논문집 Vol.12 No.5

대부분의 터널은 시간이 지남에 따라 유입량 증가, 작용수압의 변화 등 지하수의 영향을 받는다. 이러한 수리영향에 대응하기 위하여 터널 시공 시 지하수의 유입과 라이닝의 간극수압을 줄이기 위한 그라우팅을 적용한다. 본 연구에서는 효과적인 그라우팅을 위해 수치 해석결과를 바탕으로 다양한 그라우팅 조건에 대한 영향을 분석하였다. 그라우팅 영향 특성을 분석하기 위하여 그라우팅의 상대 투수계수 해석, 그라우팅의 두께, 그라우팅의 거리 등을 영향요소로 다르게 하였다. 해석결과는 지반하중, 수압, 라이닝 위치에 따른 수압, 라이닝 주변 수압분포, 유입량으로 나누어서 고찰하였다. 라이닝의 작용하는 지반 하중은 모든 조건에서 거의 동일했으며, 라이닝에 작용하는 수압은 그라우팅의 투수계수가 감소할수록, 두께가 증가할수록, 그라우팅 영역 거리가 가까울수록 감소하였다 유입량은 그라우팅 투수계수가 작을수록 감소하며, 그라우팅 두께와는 반비례한다. 본 그라우팅 영향 평가를 활용하여 지반 조건에 따른 그라우팅의 효과적인 적용을 할 수 있다. In the long-term, most tunnels suffer from the increase in ground water inflow and in pore water pressure on the lining. To reduce such hydraulic effect, generally grouting methods are adopted. In this paper effective grouting design is proposed based on numerical simulation. To investigate the optimal grouting layout, factors such as relative permeability, grouting thickness, and distance from the lining are considered. The results are analysed in terms of pore water pressure, inflow rate, and earth pressure. It is revealed that the pore water pressure has increased with a decrease in grout permeability, an increase in grouting thickness and an increase in grouting distance. Meanwhile the inflow rate has decreased with a decrease in grout permeability and is inversely proportional to grouting thickness. Effective grouting design guideline are proposed based on this study.

노년기 정신장애의 전기경련치료

주은정,김희철,강웅구,이남영,박승현,김정민,김용식,정인원,Joo, Eun-Jeong,Kim, Hee Cheol,Kang, Ung Gu,Lee, Nam Young,Park, Seung Hyun,Kim, Jung Min,Kim, Yong Sik,Chung, In Won 대한생물정신의학회 2020 생물정신의학 Vol.27 No.2

Electroconvulsive therapy (ECT) is indicated for various mental disorders (e.g., major depressive disorder, schizophrenia, and bipolar disorder) and the behavioral and psychological symptoms of dementia in elderly patients. Furthermore, ECT is a useful first-line treatment in emergency and crisis situations such as suicide risk, violent behavior, catatonia, and food refusal, which are more frequent in elderly patients. ECT is also effective in the treatment of the motor symptoms of neurological disorders, such as Parkinson's disease and Huntington's disease. Due to the high risk of various physical diseases, the comorbid physical conditions of elderly patients should be individually controlled to optimize ECT treatment. Compared to young adults, in elderly patients the seizure threshold is higher, the seizure duration is shorter, and the anesthetic dose is lower. On the contrary, the response rate in the elderly is both faster and higher. Considering potential cognitive decline and the prevention of further deterioration of cognitive function in elderly patients, in the absence of significant comorbidities, twice weekly sessions and right unilateral electrode placement with a lower seizure threshold and less cognitive effect are preferred to bilateral electrode placement, which has a high risk of adverse cognitive effects. After an acute course of ECT, continuation and maintenance of ECT, combined with prescription of therapeutic drugs, may prevent possible relapse or recurrence of mental disorders. In conclusion, ECT can be used to treat mental disorders in elderly adults, with safety and effectiveness comparable to that in young adults.

정신분열병 환자에서 신체미세기형에 관한 연구

주은정,정성훈,맹소진,윤세창,김종훈,김철응,신영민,김용식,Joo, Eun-Jeong,Jeong, Seong Hoon,Maeng, So Jin,Yoon, Se Chang,Kim, Jong Hoon,Kim, Chul Eung,Shin, Youngmin,Kim, Yong Sik 대한생물정신의학회 2002 생물정신의학 Vol.9 No.2

Object and Method:Minor physical anomalies(MPAs) are frequently seen in patients with schizophrenia. MPAs are considered to arise from the anomalous development of ectoderm-originated tissues in the developing fetus. Since the central nervous system originates from ectoderm, MPAs can be regarded as externally observable and objective indicators of the aberrant development which might have taken place in the central nervous system. To investigate whether MPAs are more frequent in schizophrenic patients, the frequencies of MPAs were compared between schizophrenic patients and normal controls. Total 245 schizophrenic patients diagnosed with DSM-IV(male : 158, female : 87), and 418 normal control subjects(male : 216, female : 202) were included in this study. The MPAs were measured using the modified Waldrop scale with fifteen items in six bodily regions; head, eye, ear, mouth, hand, and foot. Result:The total scores of Waldrop scale were $4.40{\pm}1.93$($mean{\pm}standard$ deviation) in patients and $3.43{\pm}1.68$ in controls for females, and for males, $4.58{\pm}1.75$ in patients and $4.28{\pm}1.59$ in controls. For females, the excess of MPAs in schizophrenic patients was statistically significant(t-test : p<0.001). For males, schizophrenic patients also showed more MPAs than normal controls, but this tendency did not reach statistical significance (t-test : p=0.094). When the modified Waldrop total scores excluding head circumference were compared, the total scores in schizophrenic patients were significantly higher for both male and female subjects(t-test : male p<0.001, female p=0.001). The individual anomaly items included in Waldrop scale were also investigated. The items of epicanthus, hypertelorism, malformed ears, syndactylia were significantly more frequent in schizophrenic patients. In contrast, the items of adherent ear lobes, asymmetric ears, furrowed tongue, curved fifth finger, single palmar crease and big gap between toes did not show any differences in frequency between schizophrenic patients and normal controls. Since a lot of statistical analyses showed different results between male and female subjects, it seems to be necessary to consider gender as an important controlling variable for the analysis, however only the item of head circumference showed statistically significant gender-related difference according to log-linear analysis. Conclusion:With a relatively large sample size, the frequencies of MPAs enlisted in Waldrop scale were compared between schizophrenic patients and normal controls in this study. MPAs were more frequently seen in schizophrenic patients and, especially, several specific items in the Waldrop scale showed prominent excess in schizophrenic patients. Although definite conclusions cannot be drawn due to the inherent limitation of the study using Waldrop scale, these results seem to support the possibility that aberrant neurodevelopmental process might be involved in the pathogenesis of schizophrenia in some of the patients.

폐경 전$\cdot$후 여성의 신체 계측치와 영양소 섭취량이 골밀도 및 골밀대사 지표에 미치는 영향

주은정,Joo Eun-Jung 동아시아식생활학회 2005 동아시아식생활학회지 Vol.15 No.5

This study investigated the influence of anthropometric data and nutrient intake on bone mineral density(BMD) and biochemical markers of bone metabolism The mean age of 21 premenopausal women were 47.0 years and that of 41 postmenopausal women whose menopausal age was 49.46 years were 60.56 years. The waist and WHR of postmenopausal women were significantly higher than those of premenopausal ones. The animal protein intake of premenopausal and postmenopausal women were 38.5 and 21.03 g which comprised 54.35 and $31.84\%$ of total protein intake, respectively. The calcium intake of premenopausal and postmenopausal women were 446.45 and 546.97mg which was 63.78 and $78.14\%$ of Korean RDA, respectively. The ALP(Alkaline phosphatase) of premenopausal women was 65.81 U/L, which was significantly lower than that(90.24 U/L) of postmenopausal women (p<0.01). BMD of lumbar spine of premenopausal women was correlated significantly with body weight(r=0.690, p<0.01), waist(r=0.682, p<0.01), WHR(r=0.672, p<0.01), BMI(r=0.559, p<0.01), and body fat(r=0.457, p<0.01). Urinary Ca/creatinine ratio of the premenopausal women was negatively correlated with plant protein(r=-0.529, p<0.05) and plant calcium(r=-0.579, p<0.05). BMD of lumbar spine of postmenopausal women showed positive correlation with lean body mass(r=0.469, p<0.01) and body weight(r=0.383, p<0.05). Urinary Ca/creatinine ratio for the postmenopausal women was positively correlated with ALP(r=0.404, p<0.01) and urinary Na/creatinine ratio(r=0.389, p<0.05). In conclusion, it is necessary to maintain adequate body weight and to increase calcium intake for the premenopausal women. It is also important to increase muscle mass and reduce salt intake for the postmenopausal women.

사료내 ${\beta}$-glucanase 활성 강화 고역가 복합효소제 첨가급여가 착유우의 유생산 및 체세포수 변화에 미치는 영향

주은정,정수진,윤병선,남기택,최일신,안종호,황성구,Joo, Eun-Jung,Jeong, Su-Jin,Yoon, Byung-Seon,Nam, Ki-Taek,Choi, Il-Shin,Ahn, Jong-Ho,Hwang, Seong-Gu 한국유기농업학회 2004 韓國有機農業學會誌 Vol.12 No.2

In recent years, many researches are actively undertaken for environmental-friendly animal production according to the increased understanding about food safety because of the outbreak of various diseases such as mad cow disease, Foot and mouth disease and Poultry Influenza virus. However, high quality(higher safety)- animal production may not be successful without increasing of disease resistance of animal and the improvement of feeding environment. To increase the disease resistance is able to be accomplished by stimulating the immune function. The present study was undertaken to investigate the effects of enzyme mixture reinforced with ${\beta}$-glucanase activity which degrade polysaccharide to release ${\beta}$-glucan known as stimulator of immune function on the change of milk production and somatic cell count. After 12weeks of experimental feeding, milk production tended to be increased and somatic cell count was decreased from average $227{\times}10^4$ to $37.1{\times}10^4$. Milk protein and solid-fat content were tended to increase but milk fat showed decreasing tendency by the feeding of enzyme mixture. All together, it has been suggest6d that the improvement of high quality milk production may be possible through the dietary addition of immune modulating enzyme mixture in lactating dairy cows.

전기경련치료에 대한 환자의 만족도 조사

주은정(Eun-Jeong Joo),김희철(Hee Cheol Kim),정성훈(Seong Hoon Jeong),박승현(Seung Hyun Park),이남영(Nam Young Lee),최영숙(Young Sook Choi),김용식(Yong Sik Kim),정인원(In Won Chung) 대한신경정신의학회 2021 신경정신의학 Vol.60 No.2

전기경련치료에 대한 환자의 인식과 태도를 파악하고자 설문 조사를 실시한 결과, 많은 환자들이 전기경련치료에 대한 만족도 및 부작용, 태도, 경험 등에서 대체로 긍정적인 응답을 하였다. 응답자 중에서 반수 이상이 전기경련치료 동안에 기억장애를 경험하였다. 본 연구에서는 전기경련치료의 만족도에 직접적으로 영향을 미치는 예측 요인을 확인하지는 못하였으나 전기경련치료 동안에 발생하는 일시적인 부작용들과 기억장애에 대한 예방, 조기 발견과 신속한 처치가 필요한 것을 알 수 있었다. 후속 연구에서 대상자 수의 확대와 다양한 변인들을 탐색함으로써 전기경련치료의 만족도를 높일 수 있는 예측 요인들을 규명할 수 있을 것으로 판단된다. Objectives This study examined the satisfaction of patients who had undergone electroconvulsive therapy to provide important information for improving the social misunderstanding about electroconvulsive therapy, to increase the effectiveness of treatment, and make a decision of effective treatment. Methods A questionnaire survey was conducted to determine the satisfaction, adverse effects, attitudes, and experiences toward electroconvulsive therapy in patients at 2 to 4 weeks after finishing an acute course of electroconvulsive therapy in three psychiatric hospitals. Results There were 85 respondents (38 males), whose average age was 42.0±13.6 years and average illness duration was 12.8±8.9 years. Fifty-two patients (61.2%), 19 (22.4%), 8 (9.4%), and 6 (7.1%) were diagnosed with schizophrenia, major depressive disorder, bipolar disorder, and other mental disorders, respectively. The average session number for acute electroconvulsive therapy was 12.6±6.0 sessions, and 61 patients (71.8%) had received maintenance electroconvulsive therapy. Among the respondents, 60.0% reported that they were satisfied with the electroconvulsive therapy. Satisfaction was similar according to sex, age, diagnosis, electrode placement, and use of anesthetic agents. Forty-three (53.8%) patients experienced memory impairment during acute electroconvulsive therapy. Conclusion This study showed that patients who received electroconvulsive therapy were generally satisfied with the treatment and that memory impairment should be detected early and managed promptly. Follow-up studies with a large number of subjects and variables will be needed to determine the predictive factors affecting satisfaction toward electroconvulsive therapy.

인슐린 비의존형 당뇨병 여성환자의 혈청과 뇨중 칼슘, 아연 및 마그네슘 함량과 관련인자들과의 상관관계

주은정(Eun-Jung Joo),차연수(Youn-Soo Cha),박은숙(Eun-Sook Park) 한국식품영양과학회 1996 한국식품영양과학회지 Vol.25 No.4

인슐린 비의존형 당뇨병이 칼슘, 아연 및 마그네슘의 대사에 미치는 영향을 알아보기 위하여 인슐린 비의존형 당뇨병 여성환자 19명과 정상 성인 여성 19명을 대상으로 식이 섭취량을 조사하고, 칼슘, 아연 및 마그네슘의 혈청 농도와 24시간 뇨중 배설량을 측정하였다. 그리고 혈당조절 지표로서 이용되는 공복시 혈당, 뇨중 포도당, 혈청 알부민, 뇨중 단백질을 정량하여 혈청과 뇨중 칼슘, 아연 및 마그네슘 함량과의 상관관계를 살펴보았으며, 그 결과는 다음과 같다. 혈청 중 칼슘 함량은 당뇨병군이 1.17±0.56mmol/L로서 정상인의 2.53±1.39mmol/L 보다 유의적(p<0.01)으로 낮았으며, 뇨중 칼슘은 반대로 당뇨병군이 235.81±66.17㎎/g.cr으로 정상인의 96.08±46.74㎎/g.cr 보다 유의적 (p<0.01)으로 증가하였다. 뇨중 아연과 마그네슘 배설량은 당뇨병군이 516.11±157.31㎍/g.cr과 76.05±31.26㎎/g.cr 보다 유의적(p<0.01)으로 증가하였으나, 혈청 중 아연과 마그네슘 함량은 차이가 없었다. 당뇨병 환자에 있어서 혈청 중 마그네슘은 공복시 혈당(r=-0.533 ; p<0.05), 뇨중 포도당(r=-0.767 ; p<0.001), 뇨중 단백질(r=-0.476 ; p<0.05)과 뇨중 단백질(r=0.568 ; p<0.05)과 양의 관계가 있었다. 당뇨병환자에 있어서 혈청 아연 함량은 뇨중 단백질과 상관관계(r=0.515 ; p<0.05)가 있으며, 뇨중 아연은 뇨중 단백질(r=-623 ; p<0.01) 및 혈청 알부민(r=0.579 ; p<0.01)과 양의 관계를 나타내었다. 당뇨병 환자에 있어서 공복시 혈당은 유병기간(r=0.595 ; p<0.05)과 양의 관계가 있었으며, 식이중 지방 및 열량 섭취량(r=0.595 ; p<0.05, r=0.489 ; p<0.05)과도 상관관계를 나타내었다. 그러므로 인슐린 비의존형 당뇨병 환자의 뇨중 칼슘, 아연 및 마그네슘의 배설이 정상인에 비하여 유의적으로 증가한 것은 같은 현상으로 보이지만, 혈당 조절인자와의 관계는 각각 다르게 작용하고 있었다. 특히 마그네슘이 혈당조절인자와 가장 밀접하게 관련되어 있음을 알 수 있다. Nineteen non-insulin-dependent diabetic(NIDD) and healthy control women were investigated to study the relationship between glycemic control and the level of calcium, zinc, and magnesium in the serum and urine. Urinary calcium, zinc and magnesium levels in the NIDD women were significantly higher(p<0.01) than those of the control women. There were no difference in serum magnesium and zinc levels between the two groups, but serum calcium level was lower(p<0.0l) in the NIDD women compared to that of the control group. In the NIDD women, serum magnesium was negatively related to fasting blood glucose(r=-0.533 ; p<0.05), urinary glucose(r=-0.767 ; p<0.001), urinary protein(r=-0.476 ; p<0.05), and urine volume(r=-0.571 ; p<0.05). The levels of zinc in both serum(r=0.515, p<0.05) and urine(r=0.623 ; p<0.01) were related to urinary protein but only urinary zinc level(r=0.570 ; p<0.01) was related to serum albumin. Urinary magnesium, not calcium was correlated with the urinary glucose(r=0.563 ; p<0.05) and urinary protein(r=0.568 ; p<0.05). Fasting blood glucose was positively correlated with duration of diabetes, as well as dietary fat and calorie intake. The results of this study suggest that NIDD alters all magnesium, zinc, and calcium utilization, particularly magnesium is involved in glycemic control in this condition.

논문편 : 북어의 아미노산 , 지방산 , 무기질 함량 및 조리시간별 무기질 함량 변화에 대하여

주은정 ( Eun Jung Joo ) 대한가정학회 1985 Family and Environment Research Vol.23 No.1