Modified thermal annealing was applied to the activation of the polycrystalline silicon films doped as p-type through implantation of B2H6. The statistical design of experiments was successfully employed to investigate the effect of rapid thermal annealing on activation of polycrystalline Si doped as p-type. In this design, the input variables are furnace temperature, power of halogen lamps, and alternating magnetic field. The degree of ion activation was evaluated as a function of processing variables, using Hall effect measurements and Raman spectroscopy. The main effects were estimated to be furnace temperature and RTA power in increasing conductivity, explained by recrystallization of doped ions and change of an amorphous Si into a crystalline Si lattice. The ion activation using rapid thermal annealing is proven to be a highly efficient process in low temperature polycrystalline Si technology.

Recently, because pepople are taking a great interest in the water supply system and the related facilities are getting larger, the surge suppression is very important problem. Accordingly, We carried out both numerical simulation and field tests to confirm the safety of intake pumping station.

The aim of this work is to assess the safety of fungicide tolclofos-methyl, difenoconazole and azoxystrobin in ginseng sprayed by safe use guideline. When tolclofos-methyl was sprayed on ginseng by safe use guideline, the residue amounts (MRL) of it in ginseng was 0.13 mg/kg which is below than 0.3 mg/kg, maximum residue limit established by Korea Food & Drug Administration (KFDA). The residue amounts of ginseng parts, head part was 0.37 mg/kg and main body part was 0.13 mg/kg. In case of difenoconazole, the residue amounts in ginseng was 0.81 mg/kg. which was exceed the MRL, 0.2 mg/kg. By the analyze results of ginseng part, the residues of head and main body part were 3.01 and 0.40 mg/kg, respectively. In experiment of vinyl mulching, the residue amount of difenoconazole in ginseng was 0.05 mg/kg. The residue amounts of azoxystrobin in ginseng sprayed by safe use guideline was 0.14 mg/kg. This residue was not exceed the MRL 0.5 mg/kg. The residue amounts by ginseng parts was 0.51 mg/kg for head part and 0.28 mg/kg for main body part. In case of vinyl mulching, the residue amount of azoxystrobin was 0.02 mg/kg.

우리나라에서 생산되고 있는 60여종의 약용식물의 지방산 조성을 조사하여 식물체의 부위 와 종류에 따른 지방산 조성의 특성을 관찰한 결과 아래와 같은 결과얻었다. 1. 달맞이꽃종자, 컴프리잎, 지치뿌리에서 각각 총지방산함량의 9.1, 3,5, 7,2%의 GLA가 검출되었으며 달맞이 꽃종자가 컴프리잎이나 지치뿌리보다 GLA의 절대량이 많았다. 2. 들깨종자, 참깨종자, 호박종자등의 지방산이 양(量)과 불포화도면에서 좋은 자원임이 확인되었다. 3. 식물체의 잎, 줄기, 뿌리에서의 지방산조성은 종자의 경우에 비하여 18 : 3의 분포 비율이 현저히 높게 나타났으며 18 : 0의 비율은 비교적 같게 나타났다.