바이오가스플랜트 탈리액처리 통합공정 개발을 위한 생물분리막 적용 평가

이은실,정희숙,정희숙,송형운 한국폐기물자원순환학회 2013 한국폐기물자원순환학회 학술대회 Vol.2013 No.2

바이오가스플랜트를 통한 유기성폐기물의 에너지화가 증가 추세에 있으나 탈리액 처리 문제로 에너지 확보 및 보급에 저해 인자로 작용하고 있다. 기존의 바이오가스플랜트 탈리액 처리를 위한 기술 중 물리․화학적처리와 생물학적처리의 적용은 방류수 수질기준을 확보하는데 있어 기술적 한계가 있어 안정적인 처리수질을 확보하는데 많은 설비비 및 운전비가 소요되는 단점을 가지고 있다. 따라서 본 연구에서는 바이오가스플랜트 탈리액의 처리기술 및 통합공정 개발을 위해 전기화학적처리와 MBR을 연계한 처리 연구를 수행하였으며 MBR의 안정적인 운영을 위해 생물분리막 fouling 현상을 규명하였다. 이에 바이오가스플랜트 탈리액의 화학적 응집 후 상등수를 이용하여 MBR로 유입 시 분리막의 차압 및 유량 변화를 모니터링 하였으며 이 때 미생물 농도는 8,000 ~ 11,000 mg/L를 유지하였고 초기 차압 및 유량의 30% 감소 시 물리적 세정 및 화학적 세정 후 재실험을 실시하여 초기 차압 및 유량으로의 회복 정도와 최종 fouling시 분리막 표면 분석을 통해 폐색 원인을 규명하였다.

[동화부문 당선작] 부글부글 짜증발전소_심사평

이은실,김병규,홍종의 샘터사 2015 월간 샘터 Vol.543 No.-

수열탄화 통합공정 발생 폐수의 안정적인 처리 및 재이용 자원화 기술

이은실 유기성자원학회 2023 유기성자원학회 학술발표대회논문집 Vol.2023 No.1

RE-05 : Prevalence of sarcopenia in Korean postmenopausal women

이은실,박형무 대한산부인과학회 2014 대한산부인과학회 학술대회 Vol.100 No.-

목적: Advancing age is associated with decline in bone & muschle mass and quality. Sarcopenia, one of geriatric syndrome, is defined as the age-associated loss of skeletal muscle mass and function resulting in disability, poor quality of life and death. This study was to evaluate the prevalence of sarcopenia according to the definition by Asian Working Group for Sarcopenia in Korean postmenopausal women. 방법: Total 816 Korean PMW over 50 years were enrolled at a single menopause clinic. The mean age of subjects was 58.5 years. The mean BMI was 23.6kg/m2 and the mean BMD T-scores were -0.92, -0.74 and -0.55 at lumbar spine, femur neck, and femur total respectively. The average of the lowest T-score was -1.29 Musles mass was assessed using the skeletal muscle mass index (SMI, appendicular muscle mass/height2) from the DXA scan of whole body. Muscle strength was measured by checking hand grip strength using dynamometer and by physical performance using 4-meter gait speed. Cut-off points in each variables were 5.4kg/m2 for SMI, 18 kg for handgrip strength, and 0.8m/sec for gait speed. Diagnosis of sarcopenia and its stage was made according to EWGSOP recommendation (Presarcopenia, Sarcopenia, Severe sarcopenia). 결과: Abnormal values of SMI, handgrip strength & gait speed were measured 24%, 14%, & 16% respectively. Prevalence of abnormal muscle strength tend to be increased according to advancing age. Of 198 women with various stage of sarcopenia, 138 women (17%) revealed presarcopenia, 57(7%) for sarcopenia and 3(0.4%) for severe sarcopenia. BMD T-score was positively correlated with skeletal muscle index and hand grip strength and negatively correlated with age and gate speed. 결론: Nearly 1 of 4 PMW over the age of 50 yrs in Korea showed various sarcopenic status. With advancing age, prevalence and severity of sarcopenic status tend to be increased.

국내 피임현황과 Etonogestrel Implant를 이용한 현대적 피임법

이은실 대한산부인과학회 2023 대한산부인과학회 학술대회 Vol.109 No.-

김치 제조공정에서의 세척수 재이용 기술 연구

이은실,김호,정희숙 한국공업화학회 2014 한국공업화학회 연구논문 초록집 Vol.2014 No.1

우리나라 김치 시장 규모는 2010년 기준으로 2조 3천 21억원으로 가정생산이 51.8%, 공장제조형 상품 김치가 48.2% 차지하고 있으며 2006년 이후 공장형 상품 김치는 연평균 6.9%의 지속적인 증가추세에 있다. 또한 2010년 김치 수입량은 192,936톤으로 수입 금액은 102,019천불로 전년 대비 각각 30.3%, 53.8% 증가하였으며 중국산 저가김치의 수입은 지속적인 증가가 예상된다. 따라서 국내 김치산업의 육성과 보호를 위해서는 중국산 저가 김치와의 가격 경쟁력 확보가 필요하며 이를 위하여 원자재 가격의 절감 및 안정적인 수급이 필요하다. 김치생산 공정은 물 다소비 산업으로 배추김치 1톤을 생산하기 위하여 소비되는 세척수의 사용량은 약 9톤이 소비되고 있으며 2010년 기준 연간 4,383천톤으로 추정된다. 이에 본 연구에서는 김치 생산 공정에서 다량 발생하는 세척수 재이용을 위해 공정연구를 수행하였으며 전기화학적 방법에 의한 살균 효율과 필터를 이용한 입자성오염원 제거 효율에 대한 최적 효율을 도출하였다.

연극속에서 또 하나의 인생을

이은실 중앙대학교 예술대학 학도호국단 1977 中央藝術 Vol.3 No.1

김춘수와 김수영 시의 모더니티 - ‘자유’에 대한 사유를 중심으로 -

이은실 동북아시아문화학회 2007 동북아 문화연구 Vol.1 No.12

정지용의 시 「압천(鴨川)」에 나타난 주체 의식

이은실 한국문화융합학회 2019 문화와 융합 Vol.41 No.1

Jeong Ji-yong’s text, Gyeong-do, has been the focus of much discussion in terms of natural history-related geography. In particular, this discussion has concentrated on the limited sense of structural “completeness” that can be found in Ap-Cheon, his early poem. Ji-yong’s poetic world is often described as having achieved a kind of “uniform completeness.” However, in Ap-Cheon, imbalances in the poem’s internal discussions and formal aspects have been pointed out. Accordingly, this paper will concentrate on the sense of sovereignty presented in Ap-Cheon. For this objective, what is required to be observed preferentially is ‘Gyeong- do’ and its division, meaning as literary place. Against this backdrop, and in order to better understand Jeong Ji-yong’s early poems and the sense of placeness in Gyeong-do, a reading that “overlaps” with prose, which reveals internalization processes in more detail than poetic representation, is essential. These processes can be referred to as “poetic concealment” and “prosaic statement,” respectively. Furthermore, in this context, the psychoanalytic concept of “difference in opinion” is also key. Through this reading, diversified analyses of the early poetic world of Jeong Ji-yong are established, and a rediscovery of Ap-Cheon is enabled. In the process of deducing this result, we could discover a literary truth that becomes a foundation of early poet. We have to capture a kind of literary sign in that he materialized a crack itself rather than holding fast to high completeness through a text called Ap-Cheon. This is closely related to the fact that his time studying abroad included complicated and delicate experiences pertaining to life in modern Japan. In particular, his “wandering poet” identity and the prosaic “attention” that he showed towards laborers serve as the foundation for the “possibility of impossibility” that characterizes his early poetry. Because apparently unrealistic constructive aspect could become a premise and necessary condition of literary possibility. Furthermore, the “impossibility” of sovereignty is a process of being implemented to a point of literary “possibility.” During those times, the perspectives of the research historians who have examined Jeong Ji-yong’s poetry mostly ignore this point. However, the global consciousness and poetics found in Ap-Cheon correspond with his other early poems, and it is an important text for predicting the important characteristics of his total poet world. After considering the poem from the perspective of a young poet trying to develop his aesthetics, we have labeled these distinct characteristics in Ap-Cheon as an “aesthetic crack.” This “overlapping” approach of analyzing poetry with prose in mind as described above enables us to better recognize the unique position of Jeong Ji-young’s poetic world and its specific significance.

체외수정시술 환자의 과배란유도시 저용량 아스피린 투여의 효용성에 관한 연구

이은실,이상훈,Lee, Eun-Sil,Lee, Sang-Hoon 대한생식의학회 2001 Clinical and Experimental Reproductive Medicine Vol.28 No.3

Objective : To evaluate the efficacy of low-dose aspirin on IVF outcome and endometrium in patients undergoing IVF-ET. Materials and Methods : From February, 2001 to Jun, 2001, 60 infertile patients were randomly divided into study group (28 cycles) and control group (32 cycles). The study group received a daily oral dose of 25 mg of aspirin for at least 2 weeks from first visiting day. Controlled ovarian hyperstimulation was initiated in all patients with the GnRH agonist starting in the midluteal phase of the previous cycle. Results: There were no significant differences in age of the patients, basal serum E2, LH, FSH level and endometrial thickness among two groups. There were no statistically significant differences between the study group and the control group respectively in dosage ($26.5{\pm}4.8$ vs $26.2{\pm}5.3$ amples) and duration ($10.4{\pm}4.2$ vs $9.8{\pm}5.3$ days) of gonadotropin administration, serum E2 level on the hCG administration day ($1823{\pm}342$ vs $1854{\pm}543$), LH ($14.5{\pm}2.7$ vs $14.8{\pm}3.1$), FSH ($16.7{\pm}3.4$ vs $18.3{\pm}4.7$), the number of follicles > 15 mm ($13.2{\pm}6.3$ vs $12.8{\pm}5.9$), the number of oocytes retrieved ($9.2{\pm}2.4$ vs $8.4{\pm}1.7$), the number of embryos transferred ($4.7{\pm}2.0$ vs $4.7{\pm}2.0$), fertilization rate (68.4% vs 64.5%), implantation rate (21.3% vs 17.6%), and clinical pregnancy rate (28.4% vs 26.2%). The endometrial thickness and the percentage of endometrial trilaminar pattern on hCG day were significantly higher in study group than control group ($12.9{\pm}3.7mm$ vs $10.4{\pm}2.8mm$, 78.3% vs 64.5%). Conclusion: Many reports suggest that low-dose aspirin improve ovarian response, implantation rate, fertilization rate, implantation rate, and pregnancy rate by increasing the blood flow, but we couldn't prove the significant effect of low-dose aspirin on the IVF outcome except on endometrium. This may be affected by dose of aspirin, duration, and number of patients studied. This trial is small, so our results highlight the need for a large randomized controlled trial to identify the effect of low-dose as pirin on IVF-ET outcome.