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석유화학 BTX 공정 점토탑에서의 악취 및 공정 부식 방지에 관한 연구
서성규,정채훈,문정선 여수대학교 산업기술지역개발연구소 2000 産業基術硏究所 論文集 Vol.9 No.-
offensive odors affect man's olfactory sense and cause repulsiveness. In recent years, the problem of offensive odors is becoming more complicated and diversed. The emitted offensive odors from petrochemical BTX process gave rise to a serious corrosion problem of benzene tower and offensive odor problem. The main purpose in this study is to investigate process corrosion and odor generation from clay tower of petrochemical BTX process which were assumed to be the conversion of sulfur compounds over clay into hydrogen sulfide. As a result of this study, when traces of thiophenes and mercaptans are present in the clay tower, these components are broken down by the clay. The forming H□S in this step will be concentrated in the benzene tower top. In order to remove the occurred hydrogen sulfide, Fe-chelate catalyst is used. Removing efficiency is better than 99%.
채종철,윤형선,서성규 國立麗水大學校 環境問題硏究所 2004 環境硏究論文集 Vol.6 No.-
The objective method, combined sensory and instrumental analysis, was desired to evaluation of intensity as well as odor active compounds because malodor is sensory pollution. The Seonso area was classified into seaside, residential and reference area. Target compounds were sulfur compounds such as hydrogen sulfide(H₂S). methyl mercaptan(CH₃SH), dimethyl sulfide((CH₃)₂S)and dimethyl disulfide((CH₃)₂S₂). The odor intensity at Seonso area in Yeosu city was set in order as follows : reference area < residential area < seaside area. There was a difference of the odor intensity between the summer and the winter at seaside area. Most of the odor intensity identified at seaside area(S-3) was exceeded the Korean odor regulations(the level 3.0). The concentrations of dimethyl sulfide, dimethyl disulfide were not significantly changed with sampling time and site. However, the concentration of hydrogen sulfide and methyl mercaptan at S-3 site were higher than other sites and these concentrations of the summer were higher than that of the winter. The concentrations of hydrogen sulfide at the sediments of R-1, S-1, S-2, S-3 sites by the Gastec detection tube were 0.16, 1.26, 0.43 and 2.20㎎/g-dry respectively. The order of major odor active compounds related to Seonso area were dimethyl disulfide < dimethyl sulfide < methyl mercaptan < hydrogen sulfide.
Expression of Neutrophil Gelatinase-Associated Lipocalin in Skin Epidermis
Seo, Seong Jun,Ahn, Ji-Young,Hong, Chang-Kwun,Seo, Eun-Young,Kye, Kyung-Chae,Lee, Woong-Hee,Lee, Sang-Keun,Lim, Jong-Soon,Hahn, Myong-Joon,Kjeldsen, Lars,Borregaard, Niels,Kim, Chang Deok,Park, Jang-K Elsevier 2006 The Journal of investigative dermatology Vol.126 No.2
Seo, Gimoon,Kim, Seong Keun,Byun, Yu Jeong,Oh, Eunhye,Jeong, Seong-Whan,Chae, Gue Tae,Lee, Seong-Beom Informa Healthcare 2011 Free radical research Vol.45 No.4
<P>A novel mechanism for H<SUB>2</SUB>O<SUB>2</SUB>-induced autophagic cell death in GSH-depleted RAW 264.7 cells, a murine macrophage cell line, is proposed. Under GSH-depleted conditions, H<SUB>2</SUB>O<SUB>2</SUB>-induced autophagic cell, characterized by an increased LC3-II/I ratio, a decreased level of p62 and the formation of autophagic vacuoles, was inhibited by bafilomycin A1 and by <I>Atg5</I> siRNA transfection, whereas the cell death was not inhibited by zVAD-fmk, by PI3K inhibitors or by <I>Beclin 1</I> siRNA transfection. In addition, H<SUB>2</SUB>O<SUB>2</SUB> treatment reduced the activity of mTOR and promoted the ubiquitination and degradation of Rheb, a key upstream activator of mTOR. Furthermore, proteasome inhibition with MG132 restored the expression of Rheb and increased mTOR activity, resulting in an increased viability of H<SUB>2</SUB>O<SUB>2</SUB>-treated cells. Collectively, these findings demonstrate that H<SUB>2</SUB>O<SUB>2</SUB> induces Beclin 1-independent autophagic cell death by suppressing the mTOR pathway via promoting the ubiquitination and degradation of Rheb in GSH-depleted RAW 264.7 cells.</P>
채성준(Seong Joon Chae),문정호(Jeong Ho Moon),박윤서(Yun Seo Park),박상규(Sang Kyu Park),오성훈(Seong Hoon Oh) 유기성자원학회 1997 유기물자원화 Vol.5 No.1
음식쓰레기의 처리가 사회적인 문제로 대두되기 시작한 지도 얼마되지 않았다. 하지만 이의 처리방법에 대해서는 여러해 전부터 많은 논란을 일으켜 온 것이 사실이다. 현재 국내 벚 일본에서 크게 관심을 가지고 있는 처리방식으로는 음식쓰레기를 고옴으로 건조시키는 방법과 일정량의 담체 (수분조정제)를 반응조의 내부에 담아 놓고 일정기간동안 계속적으로 투입하면서 미생물에 의한 분해가 일어날 수있도록 하는 소멸방식이 있다. 본 연구실에서는 위의 두가지 방식 중 소멸형의 잔반처리기에 관심을 가지고 이의 효율적인 음식물 분해를 위한 조건설정에 대해 실험을 진행하게 되었고 얼차척으로 음식물이 투업되고 난후 미생물과의 직접적인 접촉을 이루어지게 하는 수분조정제를 개발하기 위한 실험을 진행하게 되었다. 이를 위해 수분조정제로 쓰일 물질의 선정과 초기 미생물의 성장을 극대화시킬 수 있는 물질의 첨가에 의한 개선, 탈취 흡착제의 첨가에 의한 반응시 발생효}는 악취의 농도 변화 등에 대해 실험을 진행하게 되었고, 이에 대한 양호한 결과를 얻게 되었다. 1t is not long since treatment of food waste became a social problem. However, it is a fact that there have been a lot of debates on the treatment of food waste since several years ago. At present, two ways of disposing food waste are under great interest in Korea and Japan. One is drying of food waste at high temperature. The other is disappearance type , in which analysis by microorganism takes place with continuous supply of a bulking agent for a certain period of time that was stored in a reactor. 1n our laboratory, Disappearance type Food Waste Disposer is under interest, and experiments regarding condition establishment for efficient analysis of food waste were conducted. As preceding experimentation, experiments were done with regard to the selection of a substance to be used as a bulking agent, improvement by addition of a substance which maximizes initial growth of microorganism, and a concentration change in rank odors generated by reaction with deodorizer (absorbent). The results turned out to be satisfactory.
( Chae Ho Moon ),( Jong Ho Yoon ),( Geon Wook Kang ),( Seong Hyeon Lee ),( Jeong Su Baek ),( Seo Yun Kim ),( Hye Ryoun Kim ),( Cheol Hyeon Kim ) 대한결핵 및 호흡기학회 2013 Tuberculosis and Respiratory Diseases Vol.75 No.4
An inflammatory myofibroblastic tumor (IMT) is a rare disease entity reported to arise in various organs. It is thought to be a neoplastic or reactive inflammatory condition, controversially. The treatment of choice for myofibroblastic tumor is surgery, and recurrence is known to be rare. The optimal treatment method is not well-known for patients ineligible for surgery. We report a 47-year-old patient with aggressive recurrent IMT of the lungs. The patient had been admitted for an evaluation of back-pain two years after a complete resection of pulmonary IMT. Radiation therapy was performed for multiple bone recurrences, and the symptoms were improved. However the patient presented again with aggravated back-pain six months later. High-dose steroid and non-steroidal anti-inflammatory drugs were administered, but the disease progressed aggressively, resulting in spinal cord compression and metastasis to intra-abdominal organs. This is a very rare case of aggressively recurrent pulmonary IMT with multi-organ metastasis.
서수홍,최병주,노치완,신채희,장성훈,김양수,어완규,김효경 고신대학교 의학부 2002 高神大學校 醫學部 論文集 Vol.17 No.1
The POEMS syndrome (polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, skin change) is a rare multisystemic disorder of unknown pathogenesis. Although the etiology is still unclear, proinflammatory cytokines such as tumor necrosis factor-α, IL-6. and paraprotein specificity for neuroendocrine tissue have been suggested to play a causative role. We report a case of POEMS syndrome presented as progressive sensorimotor neuropathy, hapatosplenomegaly, diabetes mellitus, solitary bone plasmacytoma, hypertrichosis and hyperpigmentation. The patient was treated with local irradiation and prednisolone and showed obvious neurological and systemic improvement.
Radiographic and CT Findings of Thoracic Complications after Pneumonectomy
Chae, Eun Jin,Seo, Joon Beom,Kim, So Yeon,Do, Kyung-Hyun,Heo, Jeong-Nam,Lee, Jin Seong,Song, Koun Sik,Song, Jae Woo,Lim, Tae-Hwan Radiological Society of North America, Inc. 2006 Radiographics Vol.26 No.5
<P>Pneumonectomy is the treatment of choice for bronchogenic carcinoma and intractable end-stage lung diseases such as tuberculosis and bronchiectasis, but it is often followed by postoperative complications, which account for significant morbidity and mortality. Knowledge of the radiologic features of such complications is of critical importance for their early detection and prompt management. Complications of pneumonectomy are classified as early or late, depending on when they occur in relation to the hospitalization period. Early complications of pneumonectomy include pulmonary edema, bronchopleural fistula, pneumonia of the contralateral lung, empyema, and adult respiratory distress syndrome, which may occur separately or in combination. Late postpneumonectomy complications include recurrent disease, infection, effects of radiation therapy or chemotherapy, and surgical complications such as late-onset bronchopleural fistula, postpneumonectomy syndrome, and esophagopleural fistula. Sequential examinations with chest radiography after pneumonectomy are an invaluable method of screening for these complications, especially in the early postoperative period. When the radiographic findings are inconclusive, computed tomography is helpful for establishing a diagnosis and obtaining detailed information about the disease process.</P>