조명나방(Ostrinia furnacalis, 나비목 명나방과)은 가을철 옥수수 줄기 속에서 노숙유충태로 월동하는데, 수원지방에서는 봄에 월동유충이 발육하기 시작한다. 성페로몬트랩에 의한 표본조사에 의해 6월 초에 1회 성충의 발생피크를 보이고, 이후 7월 중하순에 2회 성충이, 8월말과 9월초 사이 3회 성충이 발생하는 것으로 추정되어 왔다. 9월 중순경부터 포장에서 채집된 유충의 대부분이 이미 휴면에 들어가 있는 것이 기존에 확인되었는데, 그 이전시기에 포장에 존재하는 유충의 휴면 여부에 대한 것은 불투명하였다. 따라서 본 연구에서 5월말부터 9월말까지 5~21일 사이 불규칙한 간격으로 조명나방 유충을 야외에서 인공사료를 먹이면서 사육하면서 조명나방이 휴면에 들어가는 시기를 조사하였다. 휴면에 들어간 것은 이듬해 3월에 말령유충 상태로 남아있는 개체들을 관찰하여 최종적으로 판정하였다. 관찰 결과 6월 29일까지 처리된 유충들은 모두 휴면에 들어가지 않았고, 이후 7월 20일 처리된 유충들의 약 8%가 휴면에 들어갔으며 9월초까지 휴면에 들어가는 개체 비율이 증가하여 일장이 짧아지기 시작한 이후 휴면개체들이 출현하는 현상을 보였다. 한편 9월에 처리된 개체들에서는 우화하는 개체가 없었는데 9월말 처리된 개체들은 60% 이상이 사망하였고, 상대적으로 휴면에 들어간 개체의 비율이 9월초에 비해 감소하였다. 한편 9월 이전까지 처리된 개체들이 우화하기까지 발육하는 기간은 약 23~35일 사이로 나타났는데, 5월말부터 8월초까지 처리한 집단들에서 시기에 따라 짧아지는 경향을 나타냈고 이후 8월 중순 다시 길어지는 것을 보였다. 이상의 결과와 실내 인공사육 집단의 온도의존적 발육 자료를 기반으로 야외에서 월동유충집단을 구성하는 세대를 추정하려고 시도하였다.

풍속은 풍상측의 지형지물 등의 영향으로 같은 풍속이 불어올지라도 그 값이 많이 다르게 나타난다. 따라서 기상대 주변의 지형지물의 변화 즉 지표면 조도(노풍도)에 따라 측정되는 기상대 관측풍속은 많은 영향을 받는다. 따라서 기상대에서 관측되는 풍속은 이들을 보정하여 표준화 하여야만 건설 환경 등 많은 분야에서 설계 시에 사용 할 수 있다. 기상대에서 측정된 풍속은 측정소 주변의 지형지물에의 변화에 따라 그 풍속을 일정한 환경에서의 풍속으로 평활화(표준화) 할 필요가 있다. 기상대 풍속을 정확하게 평활화하기 위해서는 풍속 측정 당시의 지표면 조도를 알아야만 하나, 거의 대부분의 기상대에는 그 주변의 지표면 조도에 대한 과거 자료가 거의 전무한 실정에 있다. 일반적으로 Gust Factor(최대순간 풍속/평균풍속)는 지표면조도와 상관관계가 높다. 따라서 본 논문에서는 우리나라 기상대풍속의 Daily Gust Factor를 사용하여 하여 년 평균G.F로 구하고, 이것을 토대로 각 기상대별 G.F. 및 지표면 조도를 구한다. 이 값에서 구한 최근의 조도와 실측(현장목측, 사진 및 지형도에 의한 분석)을 비교하여 이방법의 유효성을 검토했다.

Pretreatment of eliminating FFA is needed to make biodiesel from animal fat recovered from leather wastes because its acid value is high. This study was carried out to investigate the influence of 4 different pretreatment methods, which are heterogeneous catalyst method, ion exchange resin method, low pressure.high temperature method, and alkali method on the eliminating FFA and fatty acid composition. The results showed that the rate of eliminating FFA increased in the order of alkali method > catalyst method > low pressure high temperature method > ion exchange method. In the case of pretreatment of alkali method using NaOH, the rate of eliminating FFA appeared more than 86% regardless of acid value. Therefore, it was considered that alkali method using NaOH was the most effective in the view of economical and productive aspects, taking it into account that the acid value of animal fat recovered from fleshing scrap generated during leather making processes was 7 to 8.

본 연구에서는 한식의 해외 현지화를 목표로 take-out형 franchise system 개발을 위한 기초자료를 얻기 위하여 한국적인 특성을 나타내면서 미국인들에게 선호도가 높았던 4 개의 품목을 선정하여 한국식단의 영양적인 우수성을 확인 하고자 실시하였다. 실험기간은 총 9주로서 전반기 5주(실험 1期)는 모두 고지방식을 급여하였고, 후반기 4주(실험 2 期)는 동결건조된 한식(제육볶음, 김치볶음, 두부조림, 나물 무침)을 첨가한 실험식이를 급여하였다. 대조군은 실험 전 기간 동안 고지방식만 급여하였다. 실험종료시 체중은 실험 군간에 유의적인 차이가 없었고, 실험기간 동안 일당 증체 량과 식이효율도 차이가 없었다. 장기무게는 대조군(A)이 한식식이군(B~E)에 비해 낮은 경향이었다. 체지방의 축적 지표로서 내장지방량(RFP, EFP)은 대조군(A)보다 김치볶음군(C)과 두부조림군(D)이 20% 감소하였다. 고지방식을 급여한 후 한식첨가식이를 4주 동안 급여후 혈청 지질 중 TC농도는 나물무침군이 94.13 mg/dL로 실험군중 통계적 으로 유의하게 낮았다(p<0.05). TG농도는 실험군간에 통계 적인 차이가 없었다. 고밀도지단백-콜레스테롤(HDLC) 농 도는 제육볶음군(20.38 mg/dL)이 두부조림군(17.25 mg/ dL) 보다 유의하게 높았고(p<0.05), 김치볶음군과 나물무침군은 차이가 없었다. 저밀도지단백-콜레스테롤(LDLC) 농도는 두부조림군이 가장 높았던 반면 나물무침군이 통계적으로 가장 낮았다(p<0.05). 이상의 결과에서 김치볶음과 두부조림 및 나물무침은 한국적인 특성과 건강기능성을 갖는 한식품목으로서 향후 이들 품목과 제육볶음을 적정하게 응용하여 미국인의 입맛에 맞는 take-out형 음식이 개발된다면 미국인들에게 한식의 영양적인 우수성과 인지도를 높여 널리 보급할 수 있을 것으로 기대된다.

The purpose of this study is to search Mattie Ingold’s life, the first lady missionary doctor served in Jeonla province. She is known as a founder of the Jesus Hospital in Jeon Ju, 108years old teaching hospital with 600 beds. But her contribution and limitation as a lady doctor was not properly evaluated. She was very well prepared medical missionary graduating Women’s Medical College in Baltimore with the first prize. She had passion for mission to Korean so much that she would not return home for this people. The Rock Hill First Presbyterian Church as a sending church was also very mission oriented enough to take care of her medical education for 5 years before sending her to Korea. However her ministry period as a medical missionary was only from 1898 to 1904. It seems not so long as to raise question if there were any reasons to quit medical ministry while serving in Jeon Ju until 1925. This study traced the Mattie Ingold’s life and circumstances she had faced at the end of 19th century and early 20th century during the Japanese colonialism. As other medical missionaries did in many area of mission fields she played an important role in introducing the Christianity by bridging the gap with the traditional worldview or with the Confucianism. Her warm hearted medical care was definitely contributed to get rid of xenophobia prevailing in those days just few years after the Donghak farmer’s revolutionary movement. Even though, as a lady doctor, her medical work was restricted to caring ladies and children, her zeal for evangelism made her translate the Christian Cathechism Primer into Korean which has been used by all missionaries in Jeonla area. She rather used her limitation as a merit by involving more actively in home visiting and providing medical care for ladies and children which was not easily available to men. She must have struggled with xenophobia, male superiority complex and the health issue of herself which could have shrink her back from active medical work. But most depressing factor might have been the mission policy based on dualistic view on the Christian mission that medical ministry was just subordinate to the evangelistic ministry and that the medical care was just a bait for evangelism. This policy could have resulted in restriction in allocating resources for medical ministry. Moreover, at that time, even mission agency had male dominating atmosphere that ladies could not have a voice in decision making. This study may provide a lesson which is worth in helping individual missionaries of today’s mission by revealing that how the policy of a mission society and the contemporary worldview affects on the individual missionary’s ministry.

Fleshing scrap is a kind of wastes produced during leather making process and used in the test of manufacturing biodiesel. The early step of manufacturing biodiesel is fat recovery from fleshing scrap. Hence, we investigated the influence of the way of fat recovery on the fatty acid composition. We used three different recovery ways, that is chemical method by protein decomposition with acid/fat recovering, physical method by protein denaturalization with heat and vacuum/fat pressing, and biodiesel method by protein decomposition/fat recovering. The biological method yielded the best results in terms of appearance transparency. It was most effective to lower acid value. Also the recovered fat by biological method would be favorable methyl-ester reaction raw material for biodiesel because it contains more than 5% of oleic acid among unsaturated fatty acid.

This study was conducted to investgate the effect of gamma irradiation on the lipid oxidation, olfactory properties, fatty acid isomer and volatile compound profiles of five different oil sources. Three plant oils, canola oil, corn oil and soy oil, and two animal fat, tallow and fish oil, were irradiated with 0, 5, 10, and 20 kGy level of dose by Co-60 as a radiation source. Lipid oxidation parameters, FFA, POV and TBARS, were determined according to the AACC and AOCS method. Olfactory property of irradiated oil sources was analyzed using electronic nose (FOX3000, AlphaMOS Co., France) with 12 metal oxide sensors and the result was interpreted using principle component analysis program. Fatty acid isomer profiles and volatile compound profiles of irradiated oils were also measured by GC and GC-MS, respectively. Although the free fatty acid level of oil were the highest by high dose level (20 kGy) of irradiation, changes of both TBARS and POV values by gamma irradiation were varied between oil sources and irradiation level of dose. Electronic nose analysis showed a distinct difference among dose levels of irradiation. Although there was no new volatile compound produced by gamma irradiation, amounts of each volatile compounds were increased by irradiation. Only cis isomer, 9c12c15c of linolenic acid was dose-dependently decreased as irradiation level increased but there was no difference among other isomer profiles of linoleic acid and linolenic acid by gamma irradiation. This study showed that changes in physico-chemical properties of both plant and animal oil were remarkable by gamma irradiation. Therefore, a further study should be needed to scrutinize the interaction among lipid oxidation, production of volatile compounds and off-flavor, and isomerization of fatty acid by gamma-irradiation.

This study was carried out to investigate the effects of addition of aged garlic extract (AGE) on the color and lipid oxidation of ground chicken during refrigerated storage. The leg meat from 6 weeks-broiler was chopped and added with 4% of distilled water (control) and AGE, respectively, and then stored at 4±0.2℃ for 8 days. The commercial garlic was aged for the relatively short time (40-90℃/300 hr →natural dryness/40 hr→20-30℃/30-50 hr). The pH value was not significantly different between control and AGE-added chicken. The TBARS level of chicken was remarkably inhibited by addition of AGE during storage. In CIE color values, AGE-added chicken showed lower L* and higher b*, C* and Ho values than those of control during storage. Therefore, the addition of AGE in ground chicken enhanced the lipid oxidative stability and change to dark color.

This study was conducted to compare the carcass characteristics of native type black pigs (Black pigs) with those of commercial cross bred pigs (Commercial pigs) with the data collected from pig farms. 8364 and 33786 records were collected from Black pigs and the Commercial pigs, respectively. The Commercial pigs were mainly from three breed crosses of Yorkshire, Landrace and Duroc. Commercial pig data was subdivided into manual and machine sub data set on the judging method. Black pigs showed lower carcass weight (CWT) and thinner back fat thickness (BFT) than Commercial pigs. However, the ratio of BFT to CWT (BFT/CWT ratio) was higher in Black pigs than Commercial pigs. The carcass grades of Commercial pigs were mostly in A and B, C, and D in descending order, while the grades D or E were observed in most carcass of Black pigs. Barrow tended to be thicker in BFT and higher in BFT/CWT ratio than gilt both in Commercial and Black pigs, and gilt were higher in loin depth (LD) and Estimated Lean Yield Percentage (ELP) which were available only in the data by machine evaluation of Commercial pigs. Residual correlation coefficient (+0.496) between carcass weight and back fat thickness in Black pigs did not differ from those in Commercial pigs which were +0.434 and +0.414 in the data by manual and machine evaluation, respectively. The linear regression coefficients of back fat thickness on carcass weight were +0.364 mm in Black pigs, and +0.257 mm (manual evaluation) and +0.236 (machine evaluation) in Commercial pigs, which suggests relative accumulation rate of BFT to the growth of weight was faster in Black pigs than Commercial pigs.

This study was aimed not only to develop the gill net and trap made of biodegradable monofilaments in order to prevent a ghost fishing and to protect marine ecosystem, but also to analyze their spinning process and physical properties. Results showed that the spinning speed of biodegradable polybutylene succinate(PBS) monofilament was estimated to be approximately 100m/min when spinning temperature and cooling water temperature were adjusted at 180℃ and 3℃, respectively. The breaking loads of PBS monofilaments were estimated to be 35.3kg/mm2 at Φ0.2mm, 46.5kg/mm2 at Φ0.3mm, and 49.7kg/mm2 at Φ0.4mm in the dry condition, respectively. However, its breaking loads in the wet condition were reduced by 2.4-5.5%, compared to those in the dry condition. The knotted strength of PBS monofilament at Φ0.2mm was estimated to be 98.6% of PE in the dry condition. The breaking load of PBS monofilament at Φ0.3mm was evaluated to be 81.8% of PA, and its softness showed 3 times less than that of PA in the wet condition. The breaking load of PBS monofilament at Φ0.4mm was 95.3% of PA, and its softness showed 1.6 times less than that of PA in the wet state. However, the load elastic elongations of two kinds of monofilaments were estimated to be 1% higher than that of PA.