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Paenibacillus kribbensis AM49로 발효시킨 택사의 항산화 활성 및 NO 생성 효과
유동진 ( Dong-jin Yoo ),김창은 ( Chang-eun Kim ),유수정 ( Soo-jung Yoo ),전문희 ( Moon-hee Jeon ),김수현 ( Soo-hyun Kim ) 대한본초학회 2021 大韓本草學會誌 Vol.36 No.4
Objectives : The purpose of this study was to investigate the antioxidant activities and nitric oxide (NO) production in RAW 264.7 macrophages in extract of Alisma orientale Juzep (EAOJ) and fermented extract (FAOJ) by Paenibacillus kribbensis AM49 (P. kribbensis AM49). Methods : The Alisma orientale Juzep was fermented with P. kribbensis AM49 at 37℃ for 72 hours. We measured total polyphenol and total flavonoid, DPPH radical scavenging activity, FRAP activity and reducing power by spectrometric assay in EAOJ and FAOJ at concentrations at 0.5, 1, 5, 10 ㎎/㎖. Positive control was used ascorbic acid. Furthermore, we examined effect of EAOJ and FAOJ on the cell viability and NO production in RAW 264.7 macrophages. Results : The total polyphenol and total flavonoids content of FAOJ were increased 9.16 ㎎/g, 2.59 ㎎/g to 12.58 ㎎/g, 3.45 ㎎/g. DPPH radical scavenging activity, FRAP activity and reducing power were dose dependently increased according to the treatment concentration (0.5, 1, 5, 10 ㎎/㎖) of EAOJ and FAOJ. In particular, DPPH radical scavenging activity, FRAP activity of FAOJ was significantly increased at 5, 10 ㎎/㎖. Reducing power of FAOJ at 10 ㎎/㎖ was similar to ascorbic acid at 0.1 ㎎/㎖. In addition, the cell viability and NO production in RAW 264.7 macrophages were significantly increased at the concentrations of 250, 500, 1000 ㎍/㎖. Conclusions : These results suggest that FAOJ by P. kribbensis AM49 has effects to antioxidant activity. In addition, the cell viability and NO production in RAW 264.7 macrophages were significantly increased.
충돌수를 이용한 파이프라인 데이타패스 합성 스케쥴링 알고리즘
유동진(Yu Dong Jin),유희진(Yoo Hee Jin),박도순(Park Do Soon) 한국정보처리학회 1998 정보처리학회논문지 Vol.5 No.11
As this paper is a scheduling algorithm for the synthesis of a pipelined datapath under resource constraints in high level synthesis, the proposed heuristic algorithm uses a priority function based on the collision count of resources. In order to schedule the pipelined datapath under resource constraints, we define the collision count and the priority function based on the collision count, a number of resource, and the mobility of operations to resolve a resource collision. the proposed algorithm supports chaining, multicycling, and structural pipelining to design the realistic hardware. The evaluation of the performance is compared with other systems using the results of the synthesis for a 16 point FIR filter and a 5th order elliptic wave filter, where in most cases, the optimal solution is obtained.