• 유변학
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• 제10권4호
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• pp.202-216
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• 1998

기존의 'Orthotropic' 근사모델의 개선된 형태인 ORW를 새로운 유동 자료를 이용하여 수치적으로 구하였다. 기존의 'Orthotropic' 근사모델인 ORF나 ORL은 특히 전단유동 하에서 상호작용상수 $C_1$<0.001인 경우 비물리적 진동특성을 나타낸다. 물론 center-gated disk와 같은 비균일 유동하에서도 비물리적 진동특성을 나타내고 'Distribution Function Calculation'과 비교하여 배향 상태를 낮게 예측한다. 이런 현상들은 바로 least-square 최적화 시 사용된 유동 자료에 기인한 것을 알 수 있었다. 작은 상호작용계수의 균일 유동 자료를 이용하여 최적화를 한 ORW의 경우 비물리적 진동특성도 나타나지 않았고 균일 및 비균일 유동하에서 모두 정성적으로 잘 일치함을 확인할 수 있었다. 최적화 시 사용된 함수의 선택은 근사모델을 발전시키는데 그다지 영향을 미치지 못하였다. 하지만, 모든 배향 텐서의 eigenvalue들을 고려하면 보다 정량적으로 발전시킬 수 있지만 이들의 함수모양 선택은 중요하고 어려운 문제다. 비교를 위하여 ORW와 다른 여러 가지 근사모델을 이용하여 Film-gated strip과 Center-gated disk에 대한 연계효과 및 평면속도구배를 포함한 사출성형 충전공정의 수치모사를 수행하였다. ORW가 'Distribution Function Calculation' 과 비교하여 정량적으로도 거의 비슷한 결과를 예측함을 보여주지만 실제 실험자료와 비교하였을 때 약간의 차이가 있음을 확인하였다. 따라서 좀 더 정확히 섬유의 배향도를 예측하기 위해서는 섬유들의 상호작용을 나타내는 항의 모델링의 변화가 요구된다.

• 한국가정과교육학회지
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• 제23권4호
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• pp.105-124
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• 2011

본 연구는 고령화사회에 대비하기 위하여 인문계와 가사 실업 전문계 고등학생을 대상으로 기술 가정, 가정과학, 인간발달 수업 시간에 자신의 노후를 성공적으로 준비하기 위한 실천적 문제 중심 수업과 강의식 수업을 적용하고, 그 효과를 알아보는데 목적이 있다. 이를 위해 인문계 고등학교와 가사 실업 전문계 고등학교의 정규 교과목 수업 시간에 실험집단은 실천적 문제 중심으로 총 5차시의 수업을 실시하고, 비교집단에는 강의식으로 총 5차시의 수업을 실시하였다. 그리고 실험집단과 비교집단의 사전-사후검사를 분석하여 교수법의 차이, 학교계열의 차이를 알아보았으며, 교수법과 학교계열에 따라 노인에 대한 이해 변인과 노후생활 준비 변인에 차이가 있는지를 알아보았다. 이러한 연구 목적을 달성하기 위해 인문계 고등학교 4개교, 가사 실업 전문계 고등학교 2개교를 임의표집 하여 총 41학급, 1,263명을 대상으로 하였으며, 2009년 10월부터~2010년 11월까지 총 9명의 교사가 실험집단과 비교집단에 각각 수업을 실시하였다. 자료분석과 통계처리는 SPSS 12.0프로그램을 이용하여 평균과 표준편차, t-검증, 공분산분석을 실시하였다. 인문계와 가사 실업 전문계 고등학생을 대상으로 노후 준비를 위한 가정과 수업을 적용한 결과, 가사 실업 전문계 보다는 인문계에서, 강의식 수업보다는 실천적 문제 중심 수업이 고등학생들의 노인에 대한 이미지, 노인에 대한 지식, 자녀로부터의 부양의식, 노후생활준비도, 노인복지서비스 필요도를 향상시키는데 더 효과가 있는 것으로 나타났다. 이에 따라 실천적 문제 중심 노후 준비 교육의 후속연구로서, 고등학생의 노후준비교육을 일반화 할 수 있도록 보다 많은 학교에서 기술 가정, 가정과학, 인간발달의 정규 교과목 수업에 적용하고 그 효과를 검증하는 연구가 실시되기를 바라며, 고령화 사회에 대한 교육적 대응으로 노후생활 준비교육은 새로운 교육과정에서도 지속적으로 반영되어야 할 것을 제언하였다.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2022년도 추계학술대회
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• pp.321-321
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• 2022

Wheat was brought to solve food scarcity with aid from the United States caused by the Korean War. The Korean government launched a campaign to encourage mixed rice and wheat meals due to shortage of rice production in the 1960s, Wheat consumption began in earnest. However, it is difficult to rebuild the domestic wheat production base devastated by the Korean War with the technology at the time. Thus, wheat was mainly consumed from imported in the past. Since then, as wheat consumption has increased due to westernization and diversification of dietary life, wheat became the second staple grain in Korea. In this situation, the government enacted the Wheat Industry Promotion Act to create a basis for sustainable production and consumption of wheat in Korea. This study sought to improve the self-sufficiency of domestic wheat by examining the possibility of using "Ariheuk", a variety of new Korean wheat, as a rice supplement in the same context as the govemment's policy. Wheat has been used as a raw material for the processed food, such as noodles and bread. However, we approached it by using whole wheat as a nutritional grain. Participants were recruited from the agri-food consumer panel conducted by Rural Development Administration. We set a final sample of 525 consumer panels based on the age of census household heads. The experiment was conducted in such a way that participants cooked and ate 100% rice meal and rice containing 20% whole wheat meal. Participants completed the sensory evaluation questionnaire with online. For this experiment, all participants were given same whole wheat product. The sensory evaluation questionnaire consisted of color, glossiness, stickiness, aroma, chewing, sweetness, nuttiness, chewiness, softness, bursting, flavor, texture and swallowability. The sensory evaluation results were analyzed by giving -3 points to +3 points. The former points were given to the response that 100% rice meal is very superior to the response that rice containing 20% whole wheat meal. The latter points were given vice versa. Zero point was given to the response that they are similar each other. As a result, rice with 20% whole wheat meal was better than 100% rice meal in terms of color, aroma, chewiness, bursting and flavor. In case of sweetness and glossiness, there didn't exist significantly different. On the other hands, 100% rice meal was better in terms of softness and swallowability. As a result of ANOVA by age groups, from 30s or younger to 60s or more, there was significant difference among the groups in terms of color, chewiness and bursting. As a result of post-hoc analysis with Duncan's multiple range test (p < 0.05), 50s were evaluated to be significantly superior in color, chewiness and bursting compared to other age groups. In conclusion, it is appropriate to use whole wheat as a supplement to rice in order to improve the self-sufficiency of domestic wheat. As a strategy to promote domestic wheat consumption, in case of Ariheuk, it is necessary to provide an experience through whole wheat tasting and to establish a marketing strategy segmented by age groups.

• 지능정보연구
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• 제21권2호
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• pp.1-18
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• 2015

협업 필터링은 학계나 산업계에서 우수한 성능으로 인해 많이 사용되는 추천기법이지만, 정량적 정보인 사용자들의 평가점수에만 국한하여 추천결과를 생성하므로 간혹 정확도가 떨어지는 문제가 발생한다. 이에 새로운 정보를 추가로 고려하여, 협업 필터링의 성능을 개선하려는 연구들이 지금까지 다양하게 시도되어 왔다. 본 연구는 최근 Web 2.0 시대의 도래로 인해 사용자들이 구입한 상품에 대한 솔직한 의견을 인터넷 상에 자유롭게 표현한다는 점에 착안하여, 사용자가 직접 작성한 리뷰를 참고하여 협업 필터링의 성능을 개선하는 새로운 추천 알고리즘을 제안하고, 이를 스마트폰 앱 추천 시스템에 적용하였다. 정성 정보인 사용자 리뷰를 정량화하기 위해 본 연구에서는 텍스트 마이닝을 활용하였다. 구체적으로 본 연구의 추천시스템은 사용자간 유사도를 산출할 때, 사용자 리뷰의 유사도를 추가로 반영하여 보다 정밀하게 사용자간 유사도를 산출할 수 있도록 하였다. 이 때, 사용자 리뷰의 유사도를 산출하는 접근법으로 중복 사용된 색인어의 빈도로 산출하는 방안과 TF-IDF(Term Frequency - Inverse Document Frequency) 가중치 합으로 산출하는 2가지 방안을 제시한 뒤 그 성능을 비교해 보았다. 실험결과, 제안 알고리즘을 통한 추천, 즉 사용자 리뷰의 유사도를 추가로 반영하는 알고리즘이 평점만을 고려하는 전통적인 협업 필터링과 비교해 더 우수한 예측정확도를 나타냄을 확인할 수 있었다. 아울러, 중복 사용 단어의 TF-IDF 가중치의 합을 고려했을 때, 단순히 중복 사용 단어의 빈도만을 고려했을 때 보다 조금 더 나은 예측정확도를 얻을 수 있음도 함께 확인할 수 있었다.

• 대한간호학회지
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• 제2권1호
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• pp.3-33
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• 1971

Nursing of today has as one of its objectives the solving of problems related to human needs arising from the demands of a rapidly changing society. This nursing objective, I believe, can he attained by the appropriate application of scientific principles in the giving of comprehensive nursing care. Comprehensive nursing care may be defined as nursing care which meets all of the patient's needs. the needs of patients are said to fall into five broad categories: physical needs, psychological needs, environmental needs, socio-economic needs, and teaching needs. Most people who become ill have adjustment problems related to their new situation. Because patient teaching is one of the most important functions of professional nursing, the success of this teaching may be used as a gauge for evaluating comprehensive nursing care. This represents a challenge foe the future. A questionnaire consisting of 67 items was distributed to 200 professional nurses working ill direct patient care at Yonsei University Medical Center in Seoul, Korea. 160 (80,0%) nurses of the total sample returned completed questionnaires 81 (50.6%) nurses were graduates of 3 fear diploma courser 79 (49.4%) nurses were graduates of 4 year collegiate nursing schools in Korea 141 (88,1%) nurses had under 5 years of clinical experience in a medical center, while 19 (11.9%) nurses had more than 5years of clinical experience. Three hypotheses were tested: 1. “Nurses had high levels of concept and knowledge toward patient teaching”-This was demonstrated by the use of a statistical method, the mean average. 2. “Nurses graduating from collegiate programs and diploma school programs of nursing show differences in concepts and knowledge toward patient teaching”-This was demonstrated by a statistical method, the mean average, although the results showed little difference between the two groups. 3. “Nurses having different amounts of clinical experience showed differences in concepts and knowledge toward patient teaching”-This was demonstrated by the use of a statistical method, the mean average. 2. “Nurses graduating from collegiate programs and diploma school programs of nursing show differences in concepts and knowledge toward patient teaching”-This was demonstrated by a statistical method, the mean average, although the results showed little difference between the two groups. 3. “Nurses having different amounts of clinical experience showed differences in concepts and knowledge toward patient teaching”-This was demonstrated by the use of the T-test. Conclusions of this study are as follow: Before attempting the explanation, of the results, the questionnaire will he explained. The questionnaire contained 67 questions divided into 9 sections. These sections were: concept, content, time, prior preparation, method, purpose, condition, evaluation, and recommendations for patient teaching. 1. The nurse's concept of patient teaching: Most of the nurses had high levels of concepts and knowledge toward patient teaching. Though nursing service was task-centered at the turn of the century, the emphasis today is put on patient-centered nursing. But we find some of the nurses (39.4%) still are task-centered. After, patient teaching, only a few of the nurses (14.4%) checked this as “normal teaching.”It seems therefore that patient teaching is often done unconsciously. Accordingly it would he desirable to have correct concepts and knowledge of teaching taught in schools of nursing. 2. Contents of patient teaching: Most nurses (97.5%) had good information about content of patient teaching. They teach their patients during admission about their diseases, tests, treatments, and before discharge give nurses instruction about simple nursing care, personal hygiene, special diets, rest and sleep, elimination etc. 3. Time of patient teaching: Teaching can be accomplished even if there is no time set aside specifically for it. -a large part of the nurse's teaching can be done while she is giving nursing care. If she believes she has to wait for time free from other activities, she may miss many teaching opportunities. But generally proper time for patient teaching is in the midmorning or midafternoon since one and a half or two hours required. Nurses meet their patients in all stages of health: often tile patient is in a condition in which learning is impossible-pain, mental confusion, debilitation, loss of sensory perception, fear and anxiety-any of these conditions may preclude the possibility of successful teaching. 4. Prior preparation for patient teaching: The teaching aids, nurses use are charts (53.1%), periodicals (23.8%), and books (7.0%) Some of the respondents (28.1%) reported that they had had good preparation for the teaching which they were doing, others (27.5%) reported adequate preparation, and others (43.8%) reported that their preparation for teaching was inadequate. If nurses have advance preparation for normal teaching and are aware of their objectives in teaching patients, they can do effective teaching. 5. Method of patient teaching: The methods of individual patient teaching, the nurses in this study used, were conversation (55.6%) and individual discussion (19.2%) . And the methods of group patient teaching they used were demonstration (42.3%) and lecture (26.2%) They should also he prepared to use pamphlet and simple audio-visual aids for their teaching. 6. Purposes of patient teaching: The purposes of patient teaching is to help the patient recover completely, but the majority of the respondents (40.6%) don't know this. So it is necessary for them to understand correctly the purpose of patient teaching and nursing care. 7. Condition of patient teaching: The majority of respondents (75.0%) reported there were some troubles in teaching uncooperative patients. It would seem that the nurse's leaching would be improved if, in her preparation, she was given a better understanding of the patient and communication skills. The majority of respondents in the total group, felt teaching is their responsibility and they should teach their patient's family as well as the patient. The place for teaching is most often at the patient's bedside (95.6%) but the conference room (3.1%) is also used. It is important that privacy be provided in learning situations with involve personal matters. 8. Evaluation of patient teaching: The majority of respondents (76.3%,) felt leaching is a highly systematic and organized function requiring special preparation in a college or university, they have the idea that teaching is a continuous and ever-present activity of all people throughout their lives. The suggestion mentioned the most frequently for improving preparation was a course in patient teaching included in the basic nursing program. 9. Recommendations: 1) It is recommended, that in clinical nursing, patient teaching be emphasized. 2) It is recommended, that insertive education the concepts and purposes of patient teaching he renewed for all nurses. In addition to this new knowledge, methods and materials which can be applied to patient teaching should be given also. 3) It is recommended, in group patient teaching, we try to embark on team teaching.

• 한국유통학회지:유통연구
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• 제15권3호
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• pp.111-137
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• 2010

본 연구는 서비스 시장에서의 지각된 품질과 개인가치간의 인과적 관계 및 고객의 인지욕구에 따른 온 오프라인상의 조절효과에 대해 실증분석하였으며 이를 통해 개인가치에 대한 서비스 전략과 마케팅 관리의 중요성을 제시하고 있다. 서비스 시장에서 서비스 제공자와 구매자간의 장기적 거래관계의 중요성이 크게 부각됨에 따라 관계구축 및 강화에 매우 중요한 역할을 하는 개인가치에 관한 연구는 학계뿐만 아니라 실무적으로도 고객관계관리의 관점에서 시사하는 바가 크다고 할 수 있다. 실증분석을 위해 대형마트(할인점)와 인터넷 쇼핑몰을 이용하는 고객을 대상으로 설문을 통해 데이터를 수집하였으며 온 오프라인의 비교분석을 통한 차이검증을 위한 인과적 구성모델에 대해 구조방정식 모델분석을 통해 가설검증하였다. 구성모델에 대한 분석결과 물리적 환경, 상호작용 품질, 그리고 결과품질로 구성된 지각된 품질은 안정적 삶, 사회적 인식, 사회적 통합으로 구성된 서비스 개인가치에 통계적으로 매우 유의한 정(+)의 영향을 미치는 것으로 나타났으며 집단간 차이효과분석을 통해서도 온 오프라인에 따른 조정효과는 온라인에서보다는 오프라인에서 더 유의한 것으로 나타났다. 그리고 온라인상에서의 서비스에 대한 인지욕구가 높을 때보다는 오프라인상에서의 서비스에 대한 인지욕구가 높을 때 개인가치에 더 유의한 영향을 미치는 것으로 나타났다. 마지막으로 본 연구의 구성모델에 대한 적합도 역시 수용할만한 수준인 것으로 나타났다.