해양 녹조류인 청각에 함유되어 있는 chlorophyll을 유기용매를 사용하여 추출한 후 chlorophyll의 안정성을 증가시키기 위한 조건을 확립하였다. 추출 용매로 사용된 acetone, ethanol 그리고 methanol 중 methanol이 가장 효과적이었으며, 추출 수율은 건조 중량으로 이었다. TLC 및 HPLC 분석을 통하여 청각 색소에는 chlorophyll a 와 chlorophyll b가 주성분이며, 이들은 각각 0.40

The primary objective of this study was to determine the effects of abalone in reducing blood pressure and increasing anti-coagulant capacity. The serum angiotensin-converting-enzyme (ACE) activities of rats on an abalone-supplemented diet did not significantly differ from the ACE levels of rats on a normal diet, at any time (before the experiment, or 1 week, 2 weeks, 3 weeks, and 4 weeks, after commencement of the abalone diet) during the experiment. This result showed that abalone-supplemented diets had no effect on the activity of ACE, which controls blood pressure. To determine if an abalone-containing diet might increase anti-coagulant capacity, both prothrombin (PT) and activated partial thromboplastin time (APTT) levels were measured. The PT levels of control rats remained constant throughout the experiment. In rats fed the abalone-containing diet, PT levels increased with time, and the increase became statistically significant after 2 weeks, when compared to pre-trial PT levels. Control rats showed no significant change in APTT levels over time. The rats fed abalone, however, showed significant differences in APTT levels. Specifically, when pre-trial APTT levels were compared with 4-week levels, and when 1-week levels were compared with 4-week levels, the differences attained statistical significance. These results indicate that an abalone-supplemented diet may inhibit blood coagulation in normal rats. The results of this study prove the inherent health value of abalone, and may encourage investment in the seafood industry. Future studies will explore other possible beneficial effects of abalone, apart from the anti-hypertension and anti-coagulant effects examined above.

The purpose of this research is to examine the beach erosion prevention capability of submerged breakwaters under wave energy condition. To accomplish this objective, the computational domain was divided into two domains : the large and the detailed domain for the Song-Do beach. For each computational domain, numerical models for calculating transformation, wave induced current and beach erosion were used and also these numerical models were carefully applied to three experimental cases such as 1) the present beach condition, 2) the condition for which submerged breakwaters are installed about 240m from the shoreline of beach enlarged by artificial nourishments. The results of this research show that if storm waves attack the present beach, the erosion occurs widely all over the beach. However, when the submerged breakwaters are installed in addition to the artificial nourishments, storm waves can be adequately controlled and strong wave induced currents occur only around the submerged breakwaters resulting in the beach evolution appearing locally only at the western end of the beach.

도축된 돼지의 난소에서 난포란을 채취하여 체외 성숙시킨 후 인위적으로 활성화시켜 이배체 배발달을 유기하기 위해 cytochalasin B를 2.5, 5.0, 농도로 3, 5, 7 시간 처리한 후 NCSU23 배양액으로 7일간 배양하여 배발달율에 미치는 영향을 검사하였다. 체외 성숙된 돼지 난모세포를 활성화 처리하여 2일째 분할율을 관찰한 결과 각 처리의 분할율은 로 나타났으며, 처리별로 유의차가 없었다. 7일간 배양하여 상실배기 이상으로 발달한 난자들의

「Ministry Of Maritime Affairs And Fisheries」was established on 8 August 1996 by emerging ex-「Maritime and Port Administration」, 「Fisheries Administration」and some other marine-related organs such as 「Maritime Police Agency」, 「Marine Accident Inquiry Agency」, etc., for the purpose of enhancing development of national marine polices in various aspect and promoting marine safety and environmental protection activities. Therefore, the unification of marine casualty statistics is required for the need of appreciating present condition and problem. This paper shows the Client/Server computing system which could replace the existing Main Frame system set up by Maritime and Port Administration and Marine Accident Inquiry Agency. It also gives the way to connect every casualty related organ for data exchange of casualty information and INTERNET for opening casualty information to the public. So, applicable techniques and basic policy direction is dealt with.