논문편 - 식생활편 : 제주도지역의 식품금기에 관한 조사연구 Ⅱ - 분만기를 중심으로 -

김기남,모수미 ( Ki Nam Kim,Su Mi Mo ) 대한가정학회 1977 Human Ecology Research(HER) Vol.15 No.1

고출력 MHL용 구형저주파 구동 방식의 전자식 안정기 설계

김기남,박종연,최영민,Kim, Ki-Nam,Park, Jong-Yun,Choi, Young-Min 전력전자학회 2010 전력전자학회 논문지 Vol.15 No.5

본 논문에서는 Buck Converter 동작 원리를 Full -Bridge Inverter에 적용한 전자식 안정기를 제안하였다. 전자식안정기는 EMI 필터, 수동 PFC, Full-Bridge Inverter로 2-stage로 구성되어 있다. PFC는 신뢰성 확보를 위해 수동 PFC를 사용하였다. Full-Bridge Inverter는 High Side와 Low Side 스위치의 구동 주파수를 각각 고주파와 저주파로 구동하여 Buck Converter의 동작을 구현 하였다. 램프를 저주파수 구형파로 구동하여 음향공명현상을 피하게 되었으며, 고주파수 스위칭으로 인덕터의 부피를 줄였다. 제안한 방법은 시뮬레이션과 실험을 통해 증명하였다. In this paper, We proposed electronic ballast that applys Buck Converter operation principle to Full-Bridge inverter. The proposed ballast consists of an EMI Filter, a full-bridge rectifier, a passive power factor correction (PFC) circuit and a full-bridge inverter. The passive PFC is used and a Full-Bridge inverter operation by two frequency. High Side and Low Side switch was driven by high frequency and low frequency and realized buck Converter's operation. The lamp is driven by Low Frequency square wave to avoid Acoustic Resonance. Also, bulk of inductor is reduced by high frequency switching. Performance of the proposed ballast was validated through computer simulation using Pspice, experimentation and by applying it to an electronic ballast for a prototype 700W MHL.

퇴행성 요추 질환에서 후측방 유합술과 후방 추체간 유합술의 비교

송경진(Kyung-Jin Song),김기남(Ki-Nam Kim),송광훈(Kwang-Hun Song),이준모(Jun-Mo Lee) 대한정형외과학회 2006 대한정형외과학회지 Vol.41 No.4

시판 과자류에 표시된 영양표시의 내용분석 및 평가

김기남(Ki Nam Kim), 김아림(A Lim Kim), 김효주(Hyo Ju Kim), 조진숙(Jin Suk Cho) 충북대학교 생활과학연구소 2010 생활과학연구논총 Vol.14 No.2

The purpose of this study was to anlalyze and evaluate the contents of nutrition labeling on commercial cookies. Cookies were purchased at large discount stores in Cheongju from September, 2007 to March, 2008, and 248 items were analyzed. Whereas the percentages of labeled nutrients which should be labeled according to the regulation before December, 2007 were 100% in calories, carbohydrate, and fat, 99.6% in sodium, and 97.9% in protein, the percentages of labeled nutrients added after revision were 78.6% in trans fat, 64.1% in sugars, 66.9% in saturated fat, and 58.4% in cholesterol. Most of the units of nutrition labeling of cookies (80.2%) were ‘per serving'. The percent daily values per serving of biscuits were 32.1% of saturated fat, 13.7% of fat, 5.5% of sodium, and those of snack were 35.4% of saturated fat, 19.2% of fat, 8.3% of sodium. The most frequently labeled nutrients among the nutrients not required to disclose were fiber (14.9%), calcium (9.2%), and iron (7.2) in the order. As to nutrient claim, three claims in a product were the most (53.4%), and the percentages of non-nutrients (82.1%) were higher than those of nutrients (17.9%). The number of nutrient content claims (69) was higher than that of nutrient comparison claims (6). 'No' was the most in nutrient content claims and 'Added' and 'Enriched' were the most in nutrient comparison claims. In order to establish nutrition labeling system, nutrition labeling should be continuously monitored and nutrition education for manufacturers and consumers should be emphasized.

청주시 유아부모의 간식 구입 시 식품영양표시 활용도

김기남(Ki Nam Kim), 김가희(Ga Hee Kim), 김민경(Min Kyung Kim), 박춘화(Choon Hwa Park), 이혜리(Hye Ri Lee), 김명숙(young Sook Kim) 충북대학교 생활과학연구소 2014 생활과학연구논총 Vol.18 No.1

The purpose of this study is to investigate utilization of food and nutrition labeling of 149 preschool children's parents of Cheongju City in buying snacks for their children. The subjects of this study were mostly preschool children's mothers, and 48.3% of the mothers were full-time housewives. As for the age, 75.2% of the subjects were not more than their 30s, and their children were mainly five years old (36.9%) followed by six years old (22.8%). Most of the subjects answered that their children should have snacks (81.2%). Supermarkets (88.6%) was most popular as places for buying snacks, and because of convenience (75.2%) was the most common responses as reasons of buying snacks. At least two per day (64.4%) was the highest response as the frequency of having snacks, and fruit or fruit juice (83.9%) was most popular as the kinds of snacks followed by milk or diary products (71.8%). Expiration date and date of product were higher in perception among the contents of food and nutrition labeling, and calories, carbohydrates, sugar, and proteins were higher among the perception of nutrients. For checking harmful substances (44.3%) was highest as reasons of checking food and nutrition labeling, and for health care (77.2%) was highest as reasons of checking nutrients. Total calories (34.4%) was highest as the nutrients considered most important, and somewhat necessary (94.6%) was highest as the responses on necessity of food and nutrition labeling. Somewhat necessary occupied 89.2% in the responses on necessity of education on food and nutrition labeling. The utilization of food and nutrition labeling in buying snacks was higher as the educational level of the subjects was higher and the perception on the labeling was higher (p<0.05). The results of this study may indicate necessity of education on food and nutrition labeling for the subjects, requiring prompt education on food and nutrition labeling for preschool children's parents in the near future.

이동 환경에서 디지털 방송 시스템을 위한 채널 추정 기법의 성능 비교

김기남 ( Ki Nam Kim ),김진호 ( Jin Ho Kim ),조성준 ( Sung Joon Cho ) 한국항행학회 2005 한국항행학회논문지 Vol.9 No.1

충돌에너지 흡수용량 향상을 위한 틸팅전동차용 연결기 시스템의 설계

김기남(Kim Ki-nam),고태환(Ko Tae-hwan),박영일(Park Young-il) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6

A collision analysis for collision criteria is showed to obtain requirements in the Regulation of Rolling Stock Safety Reference. To design coupler system that can absorb the collision energy adequately, performances and components of the drawgear are selected from the collision analysis. This paper shows that the design model for coupler system is proposed corresponding with the Regulation of Rolling Stock Safety Reference.

대학생의 지각된 진로장벽이 진로결정수준에 미치는 영향에서 진로성숙도의 매개효과

김기남(Ki-Nam Kim),최보영(Bo-Youn Choi) 학습자중심교과교육학회 2024 학습자중심교과교육연구 Vol.24 No.20

경관에 대한 친숙성을 달리하는 언어정보에 따른 선호도와 공간적 패턴인지의 차이연구

김기남 ( Ki Nam Kim ) 한국지리환경교육학회 2012 한국지리환경교육학회지 Vol.20 No.1

The current study examined the two hypothesis 1)as the places are closer the preferences are getting lower 2)the spatial pattern recognition and preference depend on familiarity of linguistic information. In study1 investigates whether this tendency is true or not. 142 students of sorae middle school were selected and divided into two groups, both groups had shown the same picture, and then one group was informed that the picture is view of the Seine R. of France, and another group informed the picture is the view of the Soraepogu(harbor of Sorae). Experiment demonstrated that the interests of group 1 was significantly better than group 2, but spatial cognition of group 1 was significantly better than group 2, In study2, for high school students in nearby daemyeonghang, comparing daemyeonghang and soraepogu. The results were similar to study1. As a result, familiarity triggers the spatial pattern cognition, so familiar places are remembered better, although the student saw the same landscape, the preference and remember were different with respect to distance and familarity.

행복한 장소는 많을수록 좋을까? - 행복을 위한 정보의 양이 학습자의 행복감에 미치는 영향 -

김기남 ( Kim Ki-nam ) 한국지리환경교육학회 2018 한국지리환경교육학회지 Vol.26 No.3

The concept of happiness has emerged in the integrated social subject of the revised education course in 2015. In this paper, I tried to find meaningful ways to increase the learner’s level of happiness through geography education. To this end, the experimental study was designed with reference to ‘focalism’ and ‘paradox of choice’ which are the psychological issues of happiness in order to confirm the educational effect of ‘small but certain happiness’ trend. The purpose of the study was to find out the relationship between the learner’s happiness and the amount of information they have. The experiment was to measure the happiness depending on the number of happy places where learners responded. The experiment was to measure learner’s level of happiness according to the number of happy places they were allowed to answer. Participants were divided into two groups, one group was asked to recall one place and the other group was asked to recall several places. The single selection group reported higher level of happiness than the multiple selection one. This finding indicates that the less amount of imformation regarding their happiness may lead to higher level of happiness.