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김진양,김선효 한국식생활문화학회 2005 韓國食生活文化學會誌 Vol.20 No.2
This study is performed to examine the meal management attitudes of housewives who had elementary schoolchildren in the remote rural areas(RA: n = 318, 37.2±0.3 years of age) in comparison to those in their vicinity urban area(UA: n = 349, 36.9±0.2 years of age) in the Chungnam province in Korea. The subjects were asked to fill out the questionnaire on their attitudes of meal management for their families. The results obtained in this study were as followings: (1) Most husbands of the subjects had a farming job in the RA while they had salaried workers in the UA(p〈0.001). Education levels of both subjects and their husbands were lower in the RA than in the UA. Nuclear families were dominated by both groups, however single parent-family and step parent-family were more prevalent in the RA than in the VA. (2) In terms of ways of getting foods such as grains, meats, eggs, vegetables and fruits, the RA housewives relied more often on self-production than did the UA housewives(p〈0.001). (3) The frequency of purchasing unprocessed foods was lower in the RA than in the UA(p〈0.001). The RA housewives purchased the convenient foods such as instant noodles(p〈0.05). ready to eatsoups(p〈0.001), retort pouch foods(p〈0.05) and instant teas(p〈0.05) more frequently than did the UA housewives, while tuna, canned in oil(p〈0.01), milk and their products(p〈0.001), soybean products(p〈0.001) and snacks(p〈0.01) were purchased less often by the RA housewives. (4) Family members except housewives engaged more often in meal preparation in the RA than did those in the UA(p〈0.001), which was more strongly observed for dinner. The time spent in preparing the dinner was shorter in the RA than in the UA(p〈0.001). (5) The degrees of endeavor to provide the subjects' offspring with balanced meal(p〈0.001) and nutrition education(p〈0.01) were lower in the RA than in the VA. The RA housewives had more difficulty for performing meal management because of over work-related fatigue', 'insufficient money to purchase foods' and 'far distance from grocery' than the UA housewives(p〈0.001). The RA housewives had lower score on nutritional knowledge(p〈0.001) and wanted more strongly nutritional knowledge to improve the quality of family's meal than did the UA housewives(p〈0.01). Therefore, the RA housewives had various problems regarding meal management such as 'over work related to fatigue', 'food-purchasing inconvenience', 'low economic status of family' and 'lack of nutritional knowledge'. As a consequence the RA housewives relied on cheap convenient foods more often in order to prepare the meal easily than did the UA housewives. These findings emphasize the need in the RA for nutrition education for housewives and a range of nutrition policies that focus upon the social and economic determinants of food choice within families to improve the nutritional status of the RA residents.
김진양 한국종축개량협회 2000 젖소개량 Vol.2000 No.5
낙농에서 착유기를 정상적으로 운용하려면 착유기의 원리와 착유생리에 대하여 잘 알고 이해하여야 좋은 품질의 우유와 더 많은 우유를 생산할 수 있다고 생각한다. 이런 관점에서 볼 때 착유기는 젖소의 젖을 짜는 기계가 아니라 젖소가 젖을 내려주면 받아내는 기계라고 표현할 수 있겠다. 품질이 우수하고 더 많은 우유를 생산하기 위한 착유기의 올바른 이용을 위해서는 첫째, 착유기의 관리 및 환경위생 조성 둘째, 착유기의 정상적인 운용관리 셋째, 철저한 착유준비와 올바른 착유순서로 낙농의 기본인 젖소, 기계, 사람의 삼각관계가 정상적으로 이루어져야 한다.
격자온도 불균일 조건에서 SOI n-MOSFET의 전기적 특성
김진양,박영준,민홍식 대한전자공학회 1996 전자공학회논문지-A Vol.33 No.3
In this ppaer, temeprature dependent transport and heat transport models have been incorperated to the two dimensional device simulator SNU-2D provides a solid bse for nonisothermal device simulation. As an example to study the nonisothermal problem. we consider SOI MOSFET's I-V characteristics have been simulated and compared with the measurements. It is shown that negative slopes in the Ids-Vds characteristics are casused by the temperature dependence of the saturation velocity and the degradation of the temperature dependence mobility. Also it is shown that the kink effect occurs when impact ionization near the drain produces a buildup of holes in this isolated device island, and the hysteresis is caused by the creation of holes in the channel and their flow to the source.