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소규모 오수발생지역의 고도처리시설을 위한 상.하 흐름형 인공습지 개발
김형중,윤춘경,권태영,정광욱,Kim, Hyung-Joong,Yoon, Chun-G.,Kwun, Tae-Young,Jung, Kwang-Wook 한국농공학회 2006 한국농공학회논문집 Vol.48 No.6
The feasibility of the up- and down-flow constructed wetland was examined fur rural wastewater treatment in Korea. Many constructed wetland process was suffered from substrate clogging and high plant stresses because of long term operation. The up- and down-flow constructed wetland process used porous granule materials (charcoal pumice : SSR=10:20:70) for promoting intake rate of nutrient to plant, and especially flow type was designed continuously repeating from up-flow to down-flow. $BOD_5$ and SS was removed effectively by the process with the average removal rate being about 75% respectively. The wetland process was effective in treating nutrient as well as organic pollutant. Removal of TN and TP were more effective than other wetland system and mean effluent concentrations were approximately 7.5 and $0.4mg\;L^{-1}$ which satisfied the water quality standard for WWTPs. The treatment system did not experience any clogging or accumulations of pollutants and reduction of treatment efficiency during winter period because constructed polycarbonate glass structure prevented temperature drop. Considering stable performance and effective removal of pollutant in wastewater, low maintenance, and cost-effectiveness, the up- and down-flow constructed wetland was thought to be an effective and feasible alternative in rural area.
김형중(Hyung Jung Kim),김은숙(Eun Sook Kim),안철민(Chul Min Ahn),김성규(Sung Kyu Kim),이원영(Won Young Lee),송경순(Kyung Soon Song),박광주(Kwang Jo Park) 대한내과학회 1998 대한내과학회지 Vol.54 No.4
N/A Objectives: It is well known that malignant diseases exhibit an increased propensity to clotting and fibrinolytic aberrations and early detection of these hemostatic alterations is very important for the rapid institution of appropriate treatment of thromboembolic and hemorrhagic complications in patients with malignant disease. The incidence of these abnormalities in lung cancer was reported from 20% up to 95% according to various investigators using different hemostatic parameters. We measured the concentrations of plasma thrombin-antithrombin III complex(TAT) and plasmin-a2-plasmin inhibitor complex(PIC), which are newly developed sensitive molecular markers of coagulation and fibrinolysis system respectively in patients with lung cancer and determined the degree of these hemostatic abnormalities according to the histologic types and different clinical stages in patients with lung cancer. Methods: We measured the concentrations of plasma TAT and PIC in 62 patients with histologically corned lung cancer, and we determined stage radiologically in non-surgical patients and pathologically in surgical patients. The plasma TAT and PIC levels were assayed using a solid phase enzyme immunoassay with Enzygnost-TAT kit(Behringwerke, Marburg, Germany) and Enzygnost-PAP kit(Behringwerke, Marburg, Germany), respectively. Results ' The concentrations of plasma TAT(6.8±4.8 ng/mL) and PIC(644.3±330.5 ng/mL) in patients with lung cancer were significantly increased compared to those of plasma TAT(2.8±1.2 ng/mL) and PIC(240.4±69.7 ng/mL) in control subjects(p<0.05), The concentrations of plasma TAT and PIC in patients with lung cancer were not different according to histologic types, clinical stage and distant metastasis. There was no correlations between TAT and PIC(r=0.11, p > 0.05). Conclusions: There was a subclinical activation of coagulation and fibrinolysis system in patients with lung cancer although they don't have overt clinical evidences of thromboembolism or hemorrhage. Rut there were no different activation of coagulation and fibrinolysis system according to histologic types and clinical stages.
김형중(Kim, Hyung-jung) 계명대학교 인문과학연구소 2011 동서인문학 Vol.0 No.45
The uprisin in Gwang-ju in May 1980 induced a kind of aphasia into the Korean literature of that era. This article analyzes the aphasic aspects of May literature. We demonstrate that the aphasia of May literature occurred in the encounter with ‘event’ as A. Badiou said. Badiou indicated that literary event must be distinguished from a political event. They belong to perfectly different ‘procedure of truth’. However existing studies on May literature do not distinguish these two procedures. When we understand May literature as corresponding to literary event, Korean literature in 1980s is related to ‘partage of the sensible’. In Korean literature in 1980s, existing system of literature was collapsed and various experimentations were tried such as mook movement, disjointing genres, and group writings. This article presents a new point of view from which to study Korean literature from the 1980s.
Thioredoxin peroxidases 의 조직내 분포 및 인체 종양 질환에서 발현에 관한 연구
김형중(Hyung Jung Kim),황성철(Sung Chul Hwang),노동영(Dong Young Noh),김성규(Sung Kyu Kim),이원영(Won Young Lee),채호준(Ho Zoon Chae),이서구(Sue Goo Rhee) 대한내과학회 1997 대한내과학회지 Vol.52 No.2
N/A Objectives: Thioredoxin peroxidase(TPx), which does not exhibit similar activity and amino acid sequence homology to conventional antioxidant enzymes has been purified from S cerevisiae and bovine brain. Natural killer enhancing factor-A(NKEF-A)/ proliferation associated gene(PAG), natural killer enhancing factor-B(NKEF-B)/TPx and MER5 which has sequence homology to yeast TPx has been recently characterized biochemically, Prosperi has reported that the level of PAG in HL-60 cells was increased after serum stimulation and decreased after differentiation induced by DMSO treatment. It is well known that thioredoxin, the electron donor to thioredoxin peroxidase, also implicated in cell proliferation via protein kinase C pathway. Disturbed balance of reactive oxygen species and antioxidant in tumor tissue could enhance the cancer promotion This study was designed to investigate the distribution of NKEF-A/FAG, NKEF-B/TPx and MER5 in various tissues, and the expression of NKEF- A/PAG, NKEF-B/TPx and MER5 in human cancers. Methods We used antibodies against the puri- fied recombinant protein of NKEF-A/PAG and NKEF-B/TPx and C-terminus amino acids(SP- TASKEYFEKVHO) of MER5, We separated cytosole and mitochondria from rat liver and prepared crude extract from these. We prepared crude extract of various tissues from rat and cancer tissue from lung, stomach and breast and paired normal tissue. Immunoblot analysis of these crude extracts was performed. Results: 1) NKEF-A/PAG and NKEF-B/TPx existed in cytosolic fraction as Cu, Zn-SOD and MER5 mainly exist mainly in mitochondrial fraction as Mn-SOD. Although the level of NKEF-AIPAG, NKEF-B/TPx and MER5 was different, all tissues exhibited NKEF-A/PAG, NKEF-B/TPx and MER5 immunoreactive bands. The adrenal gland had relatively strong band of MEK. 2) The expression of NKEF-A/PAG in HL-60 cell was increased after serum stimulation and decreased after cell differentiation induced by DMSO treatment. 3) The expression of NKEF-A/PAG was increased in lung and breast cancer tissues compaired to paired normal tissues but was not changed in stomach cancer tissues and the expression of NKEF-B/TPx and MER5 was not changed in lung, stomach and breast cancer tissues compaired to paired normal tissues. 4) The level of NKEF-A/PAG, NKEF-B/TPx and MER5 was not different among various lung cancer cell lines. Conclusion: The NKEF-A/PAG, NKRF-B/TPx and MER5 are present in the cytosol and mitochondria of various tissues. The NKEF-A/PAG, in particular, is associated with cell proliferation and differentiation and overexpressed in lung and breast cancer.