게임에서의 지능형 NPC는 게임 사용자와 상호작용을 수행하는 대표적인 객체로 게임의 재미를 극대화하기 위해 다양한 역할을 수행하도록 모델링 된다. 사용자와 NPC의 상호작용에는 감성적 상호작용을 포함하여, 이러한 감성적 상호작용은 감성 표출을 의미하는 행동 제어를 통해 다양성을 갖도록 표현된다. 본 연구에서는 게임 환경에서 발생할 수 있는 객체 간 감성적 상황정보에 따라 NPC의 행동을 제어할 수 있도록 하기 위해 NPC의 성격 모델을 설계한다. 특히 AHP를 이용한 NPC의 성격 모델링을 통해 모델링 시점에서 유추 가능한 NPC의 성격 모델링 방법과 얻어진 성격 모델을 이용해 NPC 행동 제어 방안을 제안한다.

자연스러운 인간-게임 AI 객체간의 상호작용은 게임월드라는 특정한 공간에서 사람과 객체간의 감성적인 상호작용을 포함한다. 감성적 상호작용의 경우, AI 객체가 인간의 감성을 감지하는 기술과 인간의 감성을 이해하는 능력이 필요하다. 본 연구에서는 감성적 상황 정보를 통하여 게임월드에서 발생할 수 있는 다양한 객체의 감성을 변화시킬 수 있는 상황을 인식한다. 또한 감성적 상황 인식을 통해 얻어진 상황정보와 객체의 욕구를 AHP를 이용하여 표현하고 이를 통해 게임 AI 객체의 감성적 행동을 모델링한다.

Two experiments were conducted to determine the effect of wood vinegar (WV) on the fecal microbes and gas emission in weaned pigs. In Exp. 1, 224 weaned piglets (L×Y×D, 21 d-old, initial BW 6.02 ± 0.52 kg) were assigned to four treatments of different WV levels in randomized completely block design with four replicates (14 piglets/pen) for 28 days, including phases I (0-2 wk) and phase II (3-4 wk). The dietary treatments were 0, 0.1, 0.2 and 0.3% of WV added to a corn-soybean meal basal diet. The concentration of ammonia measured at 0 h and 24 h in feces did not differ among dietary treatments (p>0.05), but it was linearly decreased (p<0.05) in 0.2% and 0.3% addition level measured at 48 h and 72 h. The concentration of hydrogen sulfide had no significant change (p>0.05) within treatments measured at different time. The fecal total bacteria (TBC), Lactobacilli(LAB) and E. coli were measured on 14 d and 28 d. TBC were higher (p>0.05) in WV added treatments than the control. Similar results were obtained for LAB. But E. coli populations were decreased (p<0.05) in treatments added WV compared to control measured on 14 d and 35 d. In Exp. 2, 288 weaned piglets (L×Y×D, 21 d-old, initial BW 6.62 ± 0.31 kg) were assigned to four treatments in a randomized completely block design with four replicates (18 piglets/pen) for 28 days. The dietary treatments were basal diet (negative control, NC), 0.2% organic acid (positive control, PC), 0.2% antibiotic (AT) and 0.2% WV added to a corn-soybean meal basal diet. The fecal total bacteria (TBC), Lactobacilli(LAB) and E. coli were measured on 14 d and 28 d. TBC, LAB and E. coli showed lower counts in pigs fed AT diets than others. In conclusion, these results indicated that wood vinegar could reduce the NH3 concentration of feces and inhibited the growth of harmful bacteria.

In this study, dietary Rhus verniciflua Stockes were feeded on the porks and Hanwoo beef to determinate sanitation effects. this experiment was performed to measure oxygen contents and total flavor compounds of pork and beef inoculated Pseudomonas aeruginosa in headspace with SPME-GC. The headspace oxygen contents in Hanwoo beef were no difference on the diet supplementation ratio of Rhus verniciflua Stokes during storage at 5℃. Headspace oxygen contents of teratment dieted for 5 and 6months were higher than that of treatment dieted for 3 and 4months. No remarkable difference was observed in headspace oxygen contents in pork between control and treatment during storage at 0℃. Oxygen contents in pork of treatment diet containing 4% Rhus verniciflua Stokes was higher than that of treatment were lower than that of control on Hanwoo beef. Flavor compounds were the lowest in diet supplemented 6% of Rhus verniciflua Stokes during 4 months. Flavor compounds of pork is no change at 0℃. The longer storage periods It had the more increasing total flavor compounds and Rhus verniciflua Stokes supplement ratio had no effects on change of total flavor compounds. Such as this experiment, Flavor compounds and oxygen contents in headspace could be analyzed by SPME-GC method promptly and easily in accordance with, it is expected to apply SPME-GC method to evaluation of food quality.

The obsective of this study is to compare domestic chicory root powder with foreign chicory fructooligosaccharide (FOS) in effect of microflora in piglet feces and to sustitude domestic chicory for foreign chicory. The prebiotic effects of FOS from chicory (Chicorium intybus) was evaluated for livestock feed supplement. Chicory is a turberous plants containing inulin ,with high fructose contents its root. Piglets were fed one of three diets for 5 weeks, a control diet, a basal diet containing 0.2% of foreign chicory FOS and a basal diet containing 0.3% of domestic chicory root powder. Prebiotic effects of foreign chicory FOS and domestic chicory root powder were examined for their effects on the growth of fecal microorganism with piglet along with measuring pH changes of collected piglet feces during experimental periods (5 weeks). The results showed that the growth of Lactic acid bacteria (LAB) was significantly increased after feeding chicory FOS and chicory root powder supplemented feeds, and the increased occupancy ratio of LAB in the feces was observed. However, the occupancy ratio of Escherichia coli in piglet feces was continuously declined after treating feeds containing chicory FOS and root powder. No remarkable changes were observed in the growth of Clostridium perfringens throughout the experimental periods. A significantly decreased pH of the collected feces was observed after feeding chicory FOS and chicory root powder supplemented feeds. It was noteworthy that feeding chicory root powder more effectively decreased pH levels than those of chicory FOS. As a result of this it was expected that FOS from chicory could be applicable to pigs as prebiotics.

This study was carried out to determine the storage, cryotolerance, heat and drying resistance when the L. acidophilus growing at optimal temperature was changed growth temperature and to apply it to probiotics production so as to help intensify the viability of lactic acid bacteria in the products. L. acidophilus CT 01 was changed temperature at 22℃ and 28℃ after incubated at 37℃ for 18hours. The viable cell number increased to 4.9×108 and 5.0×108 cfu/mL, respectively in the changed temperature groups, but decreased in the control, rapidly down to 7.4×105 cfu/mL in 36 hours. L. acidophilus CT 01 was stored at 4℃ for 12 days after changed temperature at 22℃ and 28℃ for 48hours, changed temperature groups had a survival rate of 112% and 94.43%, higher than that of control (p<0.05). When stored at room temperature, survival rate in the control was 10.88%, very low, but changed temperature groups had very high survival rate, 74.43% and 85.62% (p<0.05). The cryotolerance of L. acidophilus CT 01 appeared higher than changed temperature groups was observed at 37℃ for 66hours. L. acidophilus CT 01 was heat treated at 60℃ for 15 minutes and 30 minutes to examine heat resistance after changed temperature, the heat resistance of L. acidophilus CT 01 appeared higher than control was observed changed temperature groups. L. acidophilus CT 01 was inoculated by 30% to the carrier after changed temperature, and dried at 50℃ for 12 hours. The highest survival rate of L. acidophilus CT 01 was observed changed temperature groups.