好氣性 固定床 生物膜 反應槽의 메디아로 폐칫솔의 利用可能性 檢討에 관한 基礎硏究 : 처리효율을 중심으로

임채영,김정권,성낙창,신남철,김형석,전기일 동아대학교 환경문제연구소 1997 硏究報告 Vol.20 No.1

This study was conducted to evaluate the possibility to apply the waste toothbrush to aerobic fixed biofilm reactor for media. The media used for this research was waste toothbrush (WTB) and Pall-Ring. The feed used for this research was synthetic wastewater which was made at the laboratory. The COD, NH₄^(+)- N and PO₄^(-3)-P removal efficiency variations with the organic loading rate was examined at this research. The conclusions drawn from these experiments are listed below : 1. When the influent COD concentration was respectively 300mg/ℓ, 600mg/ℓ, the COD removal efficiency was decreased with the increase of the organic loading rate and the COD removal efficiency for Pall-Ring was higher than the COD removal efficiency was 0.4~1.9%. 2. When the influent NH₄^(+)-N concentration was respectively 13mg/ℓ (COD 300mg/ℓ), 25mg/ℓ (COD 600mg/ℓ ), the NH₄^(+)-N removal efficiency for Pall-Ring was slightly higher than the NH₄^(+)-N removal efficiency for Wastetooth brush. The difference of NH₄^(+)-N removal efficiency was about 0.5~1.5%. 3. When the influent PO₄^(-3)-P concentration was respectively 7mg/ℓ (COD 300mg/ℓ), 14mg/ℓ (COD 600mg/ℓ ), the PO₄^(-3)-P removal efficiency for Pall-Ring was higher than the PO₄^(-3)-P removal efficiency for Wastetooth brush. The difference of PO₄^(-3)-P removal efficiency was about 1.1~2%. 4. COD, NH₄^(+)-N and PO₄^(-3)-P removal efficiencies show very small difference between Pall-Ring and Wastetooth brush as media. So it was showed that wastetooth brush can be used as media very successfully.

대구광역시 주차장 급지구분 조정에 관한 연구

임채문,신승우,정기수 대구대학교 산업기술연구소 2004 産業技術硏究 Vol.16 No.1

In the study, although every scale or location causes different parking demands, the region standard of parking areas in Daegu applies to equally where the first, the second, and the third circulation road are. In this point of view, this study suggests management information analyzing regional parking demand characteristics from the parking demand management as the standard of parking areas in Daegu.

양방향 2차로 도로의 기하구조에 따른 서비스수준 분석에 관한 연구

임채문,이주호,김대식,신승우 대구대학교 산업기술연구소 2003 産業技術硏究 Vol.14 No.3

Ⅱn this study, the Highway zones that have a passing lane or a concession lane out of annexed lanes to bi-directional two lane Highway were investigated. Characteristics of the highways according to geometrical structure were analyzed and LOS analysis was performed for each zone. The results are as follows; 1. The correction index for existing heavy vehicles should be considered in field limit speed because of the enhancement of the vehicle speed. 2. When analyzing traffic flow, it is more desirable to establish concession zones rather than to have more passing lanes, which are easily influenced by opposite side traffic flow. As this study investigated annexed lanes of highways only, those of local roads should be studied further.

비·부비동 양성 종양의 임상적 고찰

김진국,신향애,임채형,장현종,심대보 건국대학교 의과학연구소 2004 건국의과학학술지 Vol.13 No.-

Background and Objectives: Benign tumors of the nose and paranasal sinues are rare in comparison with malignant growths. Authors aimed to investigate the incidence and characteristics of benign sino-nasal tumors. Materials and Methods: From 1994 through 2004, 25 cases of benign sino-nasal tumors (17 men and 8 women) were diagnosed and cared at the Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Konkuk University. We reviewed medical records of patients to find out clinical features, radiologic findings, operative findings, therapeutic options, and outcomes. Postoperative observation was given for fifteen months on the average. Results: The most common symptom was nasal obstruction, followed by nasal mass, frequent nasal bleeding, headache, and rhinorrhea, and the mass mainly placed in the lateral nasal wall. There were 12 cases (48%) of inverted papilloma, 4 (16%) cases of squamous papilloma, 4 (16%) cases of hemangioma, 1 (4%) case of pleomorphic adenoma, 1 (4%) case of leiomyoma, 1 (4%) case of lipoma. All the tumors were surgically removed. For the treatment of inverted papilloma, medial maxillectomy had been performed before 1997(2 cases); however, most cases have been managed with endonasal endoscopic technique since 1997. Recurrence was observed in two patients with inverted papilloma and one patients with squamous papilloma. Conclusion: Inverted papilloma is the most common benign tumor in the nose and paranasal sinuses, followed by squamous papilloma and hemangioma. The optimal management of benign tumors is complete excision of tumor and endonasal endoscopic surgery is an effective treatment for an inverted papilloma.

말초혈액에서 Tg mRNA에 대한 역전사 중합효소 연쇄 반응법의 갑상선 재발암의 분자생물학적 진단

권성일,박기룡,김현영,신채희,임영찬,최영식,박요한,이강대,장희경,이재화,염하용 대한내분비학회 2002 Endocrinology and metabolism Vol.17 No.4

연구배경: 갑상선암은 다른 조직에 발생한 암에 비해 비교적 천천히 자라므로 대부분 예후가 양호하지만, 일부에서는 주위 조직으로 침윤하거나 혹은 원격 전이로 인하여 치명적인 결과를 초래할 수 있다. 갑상선전절제술 및 131^I 제거술 후 경과 관찰시 갑상선암의 재발과 전이의 진단에 있어 131^I 스캔과 혈청 Tg의 측정이 현재 임상에서 가장 많이 이용되고 있으나 이 방법에는 여러 가지의 결점이 있다. 최근 Tg mRNA에 대한 RT-PCR법을 이용한 여러 연구결과는 131^I 스캔과 혈청 Tg 측정의 결점을 보완할 수 있는 좋은 보조적인 진단법으로 이용할 수 있을 가능성을 제시하였다. 이에 말초혈액에서 측정한 Tg mRNA에 대한 RT-PCR법이 갑상선 절제술 및 방사성요드 치료 후 갑상선암의 재발 및 전이 유무의 진단에 유용한가를 알아보고자 이 연구 시행하였다. 방법: 분화된 갑상선암으로 진단된 후 갑상선전절제술을 시행받고 방사성요드 치료를 받은 환자 중 현재까지 한차례에 이상 추적 방사성요드 전신 스캔을 시행하고 추적관찰이 가능했던 유두선암 35예, 여포선암 5예를 대상으로 연구를 시행하였다. 대상군은 131^I 스캔 소견상 음성인 군(Group Ⅰ), 잔여조직이 있는 군(Group Ⅱ), 국소전이가 있는 군(Group Ⅲ), 및 원격전이 군(Group Ⅳ)으로 구분하였다. 정상 대조군은 갑상선질환이 없는 10예의 건강인으로 하였다. 대상환자의 말초혈액을 이용한 Tg mRNA에 대해 특이적인 primer를 이용하여 RT-PCR 및 nested RT-PCR을 시행하였다. 결과: 본 연구 결과는 다음과 같다. 1) 131^I 스캔 소견상 음성인 군 21예 중 1예에서 Tg가 양성소견을 보였다. Anti Tg Ab가 양성인 4예 모두 Tg가 음성을 보였다. 잔여조직이 있거나 국소전이 및 원격전이를 보인 군 19예 중 Tg가 양성인 경우는 4예였으나, Tg mRNA는 전예에서 양성이었다. 2) 131^I 스캔에서 국소 및 원격전이 소견을 보인 8예 중 4예에서 Tg가 음성으로 131^I 스캔과 혈청 Tg 사이에 불일치 소견을 보였다. 3) 말초혈액에서 특이적인 primer를 이용하여 RT-PCR 및 nested RT-PCR을 시행한 결과 대상군 40예 및 정상 대조군 10예 모두에서 Tg mRNA가 양성을 보였다. 결론: 본 연구에서 갑상선 절제술 및 방사성요드 치료 후 갑상선암의 재발 및 전이 유무를 평가함에 있어 역전사 중합효소 연쇄 반응법을 이용한 Tg mRNA 측정의 의의는 재평가되어야 한다고 생각된다. Background: Differentiated thyroid cancer is the most common endocrine malignancy. Despite advances in the treatment of thyroid cancer, disease recurrence and metastasis may occur in as many as 20% of patients, and so continues to pose major problems in its clinical management. Serum thyroglobulin (Tg) measurements, by immunoassay, are used to detect residual or recurrent thyroid cancer following thyriod ablation. However, the usefulness of immunoassay is limited by both the requirement for thyroid hormone withdrawal, to attain optimal test sensitivity, and interference by the antithyroglobulin antibody (Anti-Tg Ab). Recent studies have reported the clinical usefulness of reverse transcription-polymerase chain reaction (RT-PCR) detection of Tg mRNA in the peripheral blood of patients with differentiated thyroid carcinomas. We performed this study to evaluated the usefulness RT-PCR of Tg mRNA in peripheral blood of patients with thyroid carcinoma following a total thyroidectomy and radioiodine ablation therapy. Methods: Forty cases that underwent a total thyroidectomy and radioiodine ablation therapy were included in this study. Of the 40 patients, 35 were papillary carcinomas and 5 were follicular carcinomas. Ten normal control subjects were also studied. Tg mRNA was extracted. Then RT-PCR and nested RT-PCR, were run with specific Tg primers. Concurrently, DNA sequencing of the isolates was carried out to prove the isolates were identical to the nucleotide sequence of the Tg. Results: The Tg was detected in 4 of 19 patients, with either a residual thyroid bed, or metastasis, on a 131^I whole body scan and in 1 of 21 patients with a negative radioiodine scan. Surprisingly, the Tg mRNA was detected in all the patients and normal controls. Conclusion: From our results we can not recommend Tg mRNA, detected by RT-PCR in peripheral blood, as a tumor marker superior to that of the Tg serum level. We consider an intensive re-evaluation of the method is required before considering its clinical applications (J Kor Soc Endocrinol 17:501∼513, 2002).

Aquatide Activation of SIRT1 Reduces Cellular Senescence through a SIRT1-FOXO1-Autophagy Axis

Lim, Chae Jin,Lee, Yong-Moon,Kang, Seung Goo,Lim, Hyung W.,Shin, Kyong-Oh,Jeong, Se Kyoo,Huh, Yang Hoon,Choi, Suin,Kor, Myungho,Seo, Ho Seong,Park, Byeong Deog,Park, Keedon,Ahn, Jeong Keun,Uchida, Yos The Korean Society of Applied Pharmacology 2017 Biomolecules & Therapeutics(구 응용약물학회지) Vol.25 No.5

Ultraviolet (UV) irradiation is a relevant environment factor to induce cellular senescence and photoaging. Both autophagy- and silent information regulator T1 (SIRT1)-dependent pathways are critical cellular processes of not only maintaining normal cellular functions, but also protecting cellular senescence in skin exposed to UV irradiation. In the present studies, we investigated whether modulation of autophagy induction using a novel synthetic SIRT1 activator, heptasodium hexacarboxymethyl dipeptide-12 (named as Aquatide), suppresses the UVB irradiation-induced skin aging. Treatment with Aquatide directly activates SIRT1 and stimulates autophagy induction in cultured human dermal fibroblasts. Next, we found that Aquatide-mediated activation of SIRT1 increases autophagy induction via deacetylation of forkhead box class O (FOXO) 1. Finally, UVB irradiation-induced cellular senescence measured by $SA-{\beta}-gal$ staining was significantly decreased in cells treated with Aquatide in parallel to occurring SIRT1 activation-dependent autophagy. Together, Aquatide modulates autophagy through SIRT1 activation, contributing to suppression of skin aging caused by UV irradiation.

Aquatide Activation of SIRT1 Reduces Cellular Senescence through a SIRT1-FOXO1-Autophagy Axis

( Chae Jin Lim ),( Yong-moon Lee ),( Seung Goo Kang ),( Hyung W. Lim ),( Kyong-oh Shin ),( Se Kyoo Jeong ),( Yang Hoon Huh ),( Suin Choi ),( Myungho Kor ),( Ho Seong Seo ),( Byeong Deog Park ),( Keedo 한국응용약물학회 2017 Biomolecules & Therapeutics(구 응용약물학회지) Vol.25 No.5

Ultraviolet (UV) irradiation is a relevant environment factor to induce cellular senescence and photoaging. Both autophagy- and silent information regulator T1 (SIRT1)-dependent pathways are critical cellular processes of not only maintaining normal cellular functions, but also protecting cellular senescence in skin exposed to UV irradiation. In the present studies, we investigated whether modulation of autophagy induction using a novel synthetic SIRT1 activator, heptasodium hexacarboxymethyl dipeptide-12 (named as Aquatide), suppresses the UVB irradiation-induced skin aging. Treatment with Aquatide directly activates SIRT1 and stimulates autophagy induction in cultured human dermal fibroblasts. Next, we found that Aquatide-mediated activation of SIRT1 increases autophagy induction via deacetylation of forkhead box class O (FOXO) 1. Finally, UVB irradiation-induced cellular senescence measured by SA-β-gal staining was significantly decreased in cells treated with Aquatide in parallel to occurring SIRT1 activation-dependent autophagy. Together, Aquatide modulates autophagy through SIRT1 activation, contributing to suppression of skin aging caused by UV irradiation.

CHANGES IN FRUIT QUALITY OF PAPRIKA AND COLOR PIMENTO (CAPSICUM ANNUUM L.) STORED AT LOW TEMPERATURES

Chae Shin Lim,,Jong Min Lim,,Bo Suk Kim,,Seong Mo Kang,,Jeoung Lai Cho,,Hae Jun Hwang, International Society for Horticultural Science (I 2008 Acta horticulturae Vol.768 No.-

Pollen Vitality of Paprika (Capsicum annum L.) Grown at Different Daytime Temperatures

Chae Shin Lim,Ja Young Moon,Jong Min Lim,Seong Mo Kang,Jeoung Lai Cho 한국원예학회 2008 한국원예학회 기타간행물 Vol.- No.-

Different Susceptibility of Sweet and Hot Pepper Fruits (Capsicum Annum L.) to Surface Pitting during Storage

Chae Shin Lim(임채신),Jeoung Lai Cho(조정래) 한국원예학회 2009 원예과학기술지 Vol.27 No.2

본 연구는 고추속 작물의 저장중 냉해증상을 비교하고자 실시하였다. 착색단고추 ‘쿠프라’와 매운고추 ‘녹광’을 녹숙과 단계에서 수확하여 1, 5, 10℃에 저장하였다. 저장 14일 후 품종에 관계 없이 1℃와 5℃에서 냉해 증상인 피팅이 나타나기 시작했으나 10℃에서는 나타나지 않았다. 두 품종 모두 저장온도가 낮을수록 심한 피팅증상을 보였으나 ‘녹광’이 ‘쿠프라’보다 저온에 더 민감하였다. 품종별 호흡률과 에틸렌 발생률 비교에서 온도에 관계없이 호흡률은 ‘쿠프라’에서 에틸렌 발생은 ‘녹광’에서 많았다. 두 품종 모두 저장 온도가 낮을수록 높은 수분손실과 경도감소를 보였다. 저장온도에 관계없이 저장 21일째 ‘녹광’이 ‘쿠프라’에 비해 수분손실이 4배 많았다. 저장 중 이온누출은 두 품종 모두 온도가 낮을수록 높았다. 위의 결과를 종합해 볼 때 본 실험에 사용된 두 품종에서 저장 중 냉해 증상인 피팅발생은 수분손실, 경도감소, 이온누출과 깊은 관련이 있는 것으로 보여지나 에틸렌발생률과 호흡률과는 관련이 없는 것으로 나타났다. The study was conducted to compare susceptibility of pepper fruits to chilling injury during storage. Sweet ‘Cupra’ and hot ‘Nockgwang’ pepper harvested at the mature-green stage were stored at 1, 5 and 10℃. After a 14-day storage, both cultivars showed surface pitting (SP) symptoms at 1 and 5℃ but not at 10℃. Storing fruits at lower temperature caused a marked increase in SP of both cultivars, but more in ‘Nockgwang’ than in ‘Cupra’. ‘Cupra’ exhibited lower respiration and produced higher ethylene than ‘Nockgwang’ during storage regardless of temperatures. Lower temperature induced higher weight loss (WL) and firmness loss (FL) in both cultivars. Compared with ‘Cupra’, about 4-fold higher WL occurred in ‘Nockgwang’ after a 21-day storage regardless of temperature. During storage, electrolyte leakage (EL) of both cultivars increased at 1 and 5℃, whereas it increased relatively little at 10℃. The SP development at 1 and 5℃ appeared to be associated with higher WL, FL, and EL.