Nitric oxide(NO) is synthesized via the oxidation of L-arginine by a family of nitric oxide synthases(NOS), which are either constitutive(cNOS) or inducible(iNOS). The induction of iNOS in tissues can lead to the sustained production of high concentrations of NO which may exert pro-inflammatory effects including vasodilation, edema, cyototoxicity, and its activity can be mediated by various pro-inflammatory cytokine, including interferonγ(INF- γ), tumor necrosis factor, IL-1 and IL-6. The enzyme, iNOS, became a new target for pharmacologcal research with the aim to find new substances for the treatment of chronic inflammatory disorders. Murine macrophages produce large amounts of NO when activated with TFN-γ plus LPS. Murine macrophage-like cell line, RAW 264.7, is a suitable cell model to perform in vitro studies regarding the iNOS system. Artemisin feddei Lev. et Vnt.(Compositae) is a perennial herb growing in Korea. The aerial parts have been used in foik medicine as antiinflammatory, antipyretic, choleretic and diuretic agent. Sesquiterpenelactones were isolated from this plant. In the course of screening for NO inhibitory activity from medicnial plants, the aqueous extract of this plant was found to have a significant activity.

This study proposes a selection method of a performance evaluation index of waterproofing and anti corrosion materials used in domestic water treatment facilities for material and construction failures based on different usage and environmental conditions to study the possibility of structural performance maintenance. Different types of waterproofing･anti-corrosion materials have been evaluated based on their respective properties, and have been classified into separate categories based on their case studies of material failures in construction. As a result, 12 different performance evaluation indexes have been produced for the performance evaluation method. Among the 12 performance evaluation index 5 were selected with relatively low importance that produced a low value of 60% importance using AHP analysis method, and conclusively proposed 7 performance evaluation index criteria (wet surface adhesion, fatigue resistance, crack resistance, adhesion performance, joint performance, impact resistance, impermeability)

Result of test, adhesive strength improved 7% in 4℃ when test object used vibrating roller than unused vibrating roller. In case of 20℃, it improved 16.9%. Therefore, using vibrating roller is useful in construction of waterproofing layer because the test showed that using vibrating roller has excellent adhesive strength han unused it.

This is A Study on the Bond Performance of Synthetic Polymer Composite Waterproofing and Anticorrosion Method in accordance with PE Fiber Reinforcement. Test results, A Bond Performance of the Test Specimen was confirmed to have increased 37.5%. By PE Fiber Reinforcement.

In water treatment facilities, cover having a various joint is applied to prevent the bad smell. In this study, each joint type of the aluminum cover that is applied to the sewage treatment facility, it was evaluated air tightness. As a result, it showed to be higher flat type better than stick out type.

The quality of injection sealer for water leakage maintenance be being managed by KS. However, the test result of response to the substrate movement performance have some errors by an experimenter. So, the revision standard of test method is proposed. Therefor, will verify that in this study.

The quality of injection sealer for water leakage maintenance be being managed by KS. However, the test result of response to the substrate movement performance have some errors by an experimenter. Therefore, this revision standard of test method is proposed by that the new tester is manufactured for solving this errors in this study.

we set reference temperatures for the 4 seasons of Korea and measured the humidity difference of underground structures according to the seasonal change by conducting a test with specimens that applied the same waterproofing materials and methods with basement structures. The test results show that the humidity difference of the specimens that applied unwaterproofed method and inside waterproofing method became higher according to the time variation regardless of temperature, while that of the specimens that applied outside waterproofing method was none or not significant.

This research was intended to confirm the reducing effects water leakage of the acicular thaumasite as admixture for mixing concrete structure, in case of the water leakage on underground structure

Quality of injection sealer for water leakage maintenance be being managed by KS and ISO. However,the test result of bonding performance on the wet surface of concrete have some errors by an experimenter. Therefore this revision standard of test method is proposed by that the new tester is manufactured for solving this errors in this study.