식품공전 시험법은 식품기초규격 적부 판정, 수거검사의 적부판정, 수입식품의 적부판정 등의 판단근거가 되기 때문 에 식품산업에서 매우 중요하다. 본 연구는 도시락, 밀키트, 된장에 오염된 일반세균, 대장균군, 효모, 곰팡이, 대장균을 분리하기 방법으로 사용되는 평판배지법, Petrifilm법, Compact Dry법을 이용해 각각의 세균을 분리하였고, 회수율을 비교 하였다. 식품 내 자연균총(일반세균, 효모/곰팡이, 대장균군) 검출은 평판배지 PCA, PDA, DCLA와 Petrifilm AC, YM, CC의 성능을 Compact Dry TC, YMR, CF와 비교하였다. 인 위접종한 대장균(E. coli)의 경우는 평판배지 EMB, Petrilfilm EC, Compact Dry EC의 검출능을 비교하였다. 본 실험결과, 일반세균, 대장균군, 대장균의 검출에서 Compact Dry법은 기 존의 평판배지법 및 건조배지법과 비교하여 식품 내 각각의 세균수를 계수하는데 유의적 차이를 보이지 않았다(P>0.05). 또한, 평판배지법과 Compact Dry간의 상관관계 및 Petrifilm 과 Compact Dry간의 상관관계 역시 1에 가까운 높은 값을 확인하였다. Compact Dry법은 미생물 분석을 위해 배지 준 비 과정이 필요 없으며, 접종 후 자체 확산이 가능하여 사 용하기 쉽고, 공간을 효율적으로 사용할 수 있으므로 기존 의 배지를 사용하는 방법에 비해 많은 장점을 제공하였다. 따라서 식품 중 일반세균, 대장균군, 대장균의 검출을 위한 Compact Dry법(Compact Dry TC, CF, EC)은 기존의 식품공 전 상 등재된 다른 건조필름법을 대체 가능한 것으로 판단된다.

This study was carried to investigate the antidiabetic effect of ethanol extract of Smallanthus sonchifolius(S.S) in Streptozotocin(STZ)- induced diabetic rats. Diabetes was induced by intravenous injection of STZ at a dose of 43mg/kg dissolved in citrate buffer. The ethanol extract of S,S in leaves and root were orally administrated once a day for 7 days at a dose of 1,000mg/kg. The contents of serum glucose, triglyceride(TG), total cholesterol were significantly decreased in S.S treated group compared to the those of STZ-control group. The content of hepatic glycogen and activity of glucokinase(GK) were significantly increased,and activity of glucose-6-phoshatase(G-6-Pase) was significantly decreased in S.S treated group compared to the those of STZ-control group, but activity of glucose-6-phosphate dehydrogenase(G-6-PDH) was not significantly increased, These results indicated that ethanol extract of S.S would have antidiabetic effect in STZ-induced diabetic rats.

유아용 체감형 게임은 유아 놀이 공간 축소로 인한 안전한 유아 놀이 공간 부족에 대한 해결책 중 하나로 대두되고 있다. 이에 따라 본 연구에서는 유아용 체감형 게임 인터페이스에 활용 가능하고 유아의 동작 특성이 고려된 유아 교육적으로 적합하고 체계적으로 정리된 유아 동작 데이터베이스가 필요성을 제기하고 유아의 상체 동작을 선정하여 데이터베이스를 구축했다. 동작 데이터베이스는 센서와 카메라의 두 디바이스를 모두 사용한 7개의 한 손 동작과 카메라만을 사용한 7개의 두 손 동작 데이터로 구성되었다. 유아 동작 데이터베이스는 각 연령별로 남자 유아 5명, 여자 유아 5명으로 만3세에서 만 5세의 유아 30명을 대상으로 동작이 수집되었다. 데이터베이스는 총 14개 동작을 한 동작마다 3번씩 반복하여 수집하였다. 수집된 데이터베이스는 유아용 체감형 게임에 적용 가능하고 유아가 쉽게 따라하는 것이 가능한 동작들로써 연구용으로 외부에 공개 및 배포되어 유아 대상의 체감형 게임 개발에 도움이 될 것이다.

The purpose of this study was to evaluate the multilateral weight control program provided by the university health care center for female college students. The program was 8weeks long and composed of nutrition consultation, exercise, and behavior modification. Nutrition education focused on a low calorie and balanced diet, increasing the intake of protein and micronutrients and reducing carbohydrate and fat consumption. Evaluations were made upon completion of an 8-week program and upon follow-up at 6 months after the end of program. A total of 92 women completed the 8-week program, while 20 completed the follow-up survey. Upon completion of the 8-week program, significant decreases in body weight, BMI, body fat (kg), and %body fat were observed, and muscle mass was also reduced. The total energy and carbohydrates intake were also significantly decreased in subjects with weight loss, while the percentage of subjects whose consumption of protein, calcium, iron, vitamin B1, B6, and niacin did not meet the EAR, were decreased. The blood values of glucose, total cholesterol and HDL-cholesterol were decreased. The follow-up survey revealed that the subjects continued to lose weight after completion of the program. In addition, a Mini nutrition assessment revealed that diet quality improved, especially with respect to reductions in the consumption frequency of fried, greasy and salty food. In conclusion, the multilateral weight control program with diet education for female college students was effective for long lasting weight control and improved dietary behavior. Nutrition education for weight reduction should focus on balanced nutrition as well as lowering the total caloric intake.

본 연구는 현재 한국 대학에서 수학하는 아시아 국가 출신 유학생들의 대학 사회의 적응 을 호네트의 사회적 인정관계의 구조 속에서 살펴보고 있다. 개별 주체인 유학생이 대학사 회 주요 구성원인 타자와의 관계 속에서 이들이 경험하는 인정의 훼손, 즉 무시의 경험이 일어나는 계기가 무엇이며 훼손된 인정을 회복하고자 이들이 펼치는 인정투쟁 방식에 초점 을 맞추었다. 이들의 인정투쟁 방식의 고찰은 현재 우리나라 사회에 증가하는 유학생을 포 함한 이주민을 이해하는 시각의 확대를 제안하는 것으로 궁극적으로 이미 형성된 사회의 인정질서에 이들의 새로운 정체성 요구 즉 새로운 사회 구성원으로서 인정관계를 확대하여 사회통합에 기여 하는데 도움이 되는 이론적 근거를 제공 할 것이라고 생각하기 때문이다. 이 연구는 질적연구 방법으로 진행되었으며 연구 결과 아시아 국가 출신 유학생들은 언어 적 부족, 교우관계, 출신국가 배경에 의해 인정의 부재를 경험하고, 그 결과 분노하지만 무 시를 참고 이해하기, 소모임 만들어 분노 표출과 하소연하기, 한국 학생들에게 점차 동등한 관계형성 요구하기 형태의 인정투쟁 방식을 보여줌을 알 수 있었다.

The purpose of this study was to investigate how young children recognize the image of robots, and how they understand the relationship between themselves and robots based on school experience. 20 children from kindergarten A had no direct experience with educational robots, whereas 20 children from kindergarten B had experience in using educational robots in their classroom. Total 40 children from age group 5 class participated in this study. We collected data using interview and drawing test. The findings of the study are as follows: First, participating children recognized robots as having both the character of a machine and a human. But children with previous robot experience provided description of robots as a machine-tool. Both groups were not able to explain the structure of robots in details. Second, participating children understood that they can develop a range of social relationships with robots, including simple help to family replacement. There were mixed views on robots among the children with previous experience, but children with no experience described robots as taking the role of peers or family members. These findings could contribute to the development of robots and related programs in the field of early childhood education.

The SCR (selective catalytic reduction) system is highly-effective technique for NOx reduction from exhaust gases. In this study, the effects of the direction and size of nozzle and the ammonia injection concentration on the performance of SCR system are analyzed by using the computational fluid dynamics method. When the nozzle is arranged in zigzaged direction which is normal to exhausted gas flow, it is shown that the uniformity of gas flow and the NH3/NO molar ratio is improved remarkably. With the change of the ammonia injection concentration from 0.2 vol%(wet) to 1.0 vol%(wet), the uniformity of gas flow shows a good results. As the size of nozzle diameter changes from 6 mm to 12 mm, the uniformity of gas flow is maintained well. It is shown that the uniformity of the NH3/NO molar ratio becomes better with decreasing the ammonia injection concentration and the size of nozzle diameter.

Some sections of the exhaust system to determine the shape of the duct is to suffer the difficulties by space constraints to install new equipment of the environment post-treatment for existing operation of the power plants. In this paper the large duct in flue gas desulfurization equipments of the 500MW coal-fired power plant on the current operation is numerically analyzed from induced draft fan exit to booster up fan inlet section which is in the narrow space of the exhaust system with four times bending and is connected to emergency duct to bypass the exhaust gas on the emergency operation. The procedure and method using computational fluid dynamics are proposed to maintain the stability of the guide vane with the uniform flow and a minimum pressure loss of exhaust gas in the case of normal and emergency operation between the direction of the flow of exhaust gas duct at different.

The characteristics of precipitation separation and solvent extraction separation of magnesium from the waste bittern were studied experimentally. In the result of precipitation separation, the size of magnesium hydroxide precipitated was not affected on pH, but decreased with increasing the precipitation temperature. The purity of magnesium oxide precipitated was increased with pH beyond pH 11. From the solvent extraction separation, the equilibrium extraction ratio of magnesium was increased with pH and temperature of extraction phase, the concentration of stripping phase, and with decreasing pH of stripping phase. The extractant of Aliquat 336 and Acid 810 mixture was more effective than that of DCH18C6 and D2EHPA mixture in the extraction separation of magnesium.