검색결과

검색조건
좁혀보기
검색필터
결과 내 재검색

간행물

    분야

      발행연도

      -

        검색결과 684

        381.
        2007.11 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The mesh selectivity of gill net for Japanese sandfish (Arctoscopus japonicus) caught in the East Sea, Korea was described. The experiment was conducted with five different kinds of mesh size (39.4, 45.5, 51.5, 53.0, 57.6mm) between November and December 2006 in spawning season. The catch was mostly Japanese sandfish (93.3%) and some others (6.7%), and almost all of the female Japanese sandfish were larger than the fork length at 50% maturity (16.7cm). The selection curve for the female Japanese sandfish caught from the experiments was fitted by the Kitahara's method to a polynomial equation which was s(R)=exp{(0.2584R3-5.3445R2+32.269R-59.868)-0.6585} where R=l/m, and l and m are fork length and mesh size, respectively.
        4,000원
        384.
        2007.10 KCI 등재 구독 인증기관 무료, 개인회원 유료
        계층적 p-세분화를 위해 Zienkiewicz-Zhu 오차평가법이 약간 수정되었으며, 이 방법의 유효성을 보이기 위해 휨을 받는 개구부를 갖는 Reinssner-Mindlin평판에 적용하였다. 유한요소해석상의 적응적 체눈을 결정하는 단계는 초수렴 팻취 복구기법에 기초를 둔 사후오차평가자와 연계된 p-세분화에 의해 제안되었다. 요소내의 변위장을 정의하기 위해 적분형 르장드르 고차 형상함수가 사용되는 반면 복구응력을 보간하기 위해 파스칼의 삼각수에 기초를 둔 같은 차수의 고차다항식이 사용되는 이유로 수정 Z/Z 오차평가는 종래의 방법과 다소 차이를 보여준다. 가우스 적분점에서의 응력을 최적화하기 위해 필요한 다항식으로 표현되는 응력함수를 얻기 위해 최소제곱법이 사용되었다. 고정된 요소망에 거의 최적의 형상함수 차수의 분배를 찾기 위한 전략이 논의되었는데, 허용되는 정확도를 얻을 수 있을 때까지 각 요소마다 형상함수의 차수를 불균등하게 증가시키는 방법으로, 소위 최적의 선택적 p-분배를 자동으로 결정하도록 되어있다. 위의 사항들을 L-형 평판 해석에 적용한 결과, 적응적 p-체눈설계 단계가 진행됨에 따라 자유도의 증가에 따라 오차량은 급격히 감소되는 것을 알 수 있었고, 제안된 오차 지시자에 의한 적응적 p-체눈 세분화는 최적 p-분배 진행방향에 근접하는 것을 볼 수 있었다.
        4,000원
        386.
        2007.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        분리층 두께가 5 μm이며 Si/Al 몰비가 1.5인 Na형 faujasite 제올라이트 분리막을 이차성장 공정에 의하여 제조하였고, 투과부에 13X 제올라이트 흡착제 충진 전후의 진공모드에서의 CO2/N2 분리거동을 CO2/N2 몰비가 1인 혼합기체에 대하여 30℃에서 평가하였다. 충진된 13X 제올라이트 흡착제는 CO2 투과도와 CO2/N2 선택도를 동시에 증진시켰다. 이 현상은 13X 제올라이트 흡착제 충진이 다공성 α-알루미나 지지체의 기공채널을 통한 CO2 탈출을 증진시킴으로써 faujasite 제올라이트/α-알루미나 상계면에서의 CO2 탈착을 증진시켰기 때문으로 설명되었다. 본 논문으로부터 흡착제와 분리막의 혼성화는 일반적으로 보여지는 선택도와 투과도의 역비례 관계를 획기적으로 개선할 방법임이 확인되었다.
        4,000원
        387.
        2007.08 KCI 등재 구독 인증기관 무료, 개인회원 유료
        To examine the mesh selectivity and optimum mesh size of gill nets for silver promfret Pampus argenteus, the field experiments were carried out during June 27th to July 3rd, 2005 at the coastal area of Imja island. The experimental gill nets for silver promfret were used in two set, which one set was consisted of 12 sheets, and each set was connected alternatively four defferent sheets those were 141mm, 148mm, 155mm and 164mm in mesh size. The analysis of mesh selectivity curve was done by Kitahara's method. The total number of fishes caught by experimental fishing of gill nets for silver promfret was 1,409, and it was consisted of 1,022 silver promfrets(72.5%), 123 croakers(8.7%), 70 red tongue soles(5.0%), 67 blue crabs(4.8%), 22 red seabreams(1.6%), and 105 other fishes(7.4%). The number of fishes caught by the mesh size was 244 at mesh 141mm(mean 6.8/sheet), 261 at mesh 148mm(mean 7.3/sheet), 295 at mesh 155mm(mean 8.2/sheet) and 222 at mesh 164mm(mean 6.2/sheet). The body weight of fishes caught by the mesh size was 102.1kg at mesh 141mm(mean 2.8kg/sheet), 112.9kg at mesh 148mm(mean 3.1kg/sheet), 132.8kg at mesh 155mm(mean 3.7kg/sheet), and 100.4kg at mesh 164mm(mean 2.8kg/sheet). The value of maximum l/m on mesh selectivity curve and the value of l/m on the selection range of 50% was estimated at 1.91 and from 1.63 to 2.23, respectively. Therefore, the optimum mesh size of gill nets for silver promfret was estimated 135mm, and the total length at the selection range of 50% was from 220mm to 301mm. But, it will be useful to use the mesh size of gill nets which is about 10-15% larger than the estimated optimum mesh size of gill nets considering the number of fishes caught, body length and body weight etc.
        4,000원
        388.
        2007.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The purpose of this study was to analyze the factors consumers seriously considered when purchasing HMRs and the difference among the factors according to their demographic characteristics. The subjects were adults in their twenties or older who had used HMRs and lived in Seoul and Gyeonggi Province in Korea. Random sampling picked 550 of them, who were distributed a questionnaire from March 12 to 30, 2005. Total 451 questionnaires were returned(the return rates were 82%). The validity of the 27 features was examined by factor analysis. There were seven factors identified, and they were labeled considering the meaning of their items as follows: 'Factor 1. food quality,' 'Factor 2. appearance and packaging,' 'Factor 3. convenience and reliability,' 'Factor 4. access,' 'Factor 5. familiarity,' 'Factor 6. positive experiences,' and 'Factor 7. practicality.
        4,000원
        389.
        2007.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study will provide a useful information and suggestions regarding new wine drinkers wine selection attributes and preference on wine producing countries to wine distributors, wine producers and marketers in Korea. New wine drinkers showed high preference on sweet wine, rich aroma wine, matured wine and white wine respectively. Regarding wine producing countries, Germany, France and Chile were rated among the top preferred countries by new wine drinkers. Results showed that the reasons for disliking wines were not being used to it as the top reason followed by wine being expensive and wine not being tastes good.
        3,000원
        390.
        2007.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study on the rape crime among a lot of criminal types from point of view of victimology to investigate the subjects below: Firstly, being free from precedent studies on the victimology from point of view of the victim, the study examined whether an offender committed rape crime by his rational choice. Secondly, even if an offender did not commit crime by rational choice from point of view of theoretically integrated models, the target was selected because of special factors: Therefore, the study examined selecting and deciding factors of criminal targets from point of view of the offender. On the other hand, actual proof was investigated in accordance with the purposes of the study: Most of rational choices of the offender were not made. Even if an offender did not make rational choice, he did not commit crime without consideration: Therefore, the study investigated considerations from point of view of the offender. An offender committed rape crime at the place that he knew well to have less floating population and to have neither CCTV nor police stations at adjacent areas. And, the offender thought that the victim was not likely to report rape crime without self-defence tools, and he did not have fear of imprisonment after being arrested. Therefore, to prevent rape crime from being victimized, both the offender and the victim should not meet by chance at the place where the offender knew well to have less floating population and to have neither CCTV nor frequent police activities, so that the victim could improve capable guardianship not to be exposed to the offender's target selection. On the other hand, the offender's selection factors gave priority in order of proximity to crime, attractiveness, risk and accessibility, etc to be independent from statistical significance. Therefore, considering the offender, the victim had better avoid such a place, in particular, entrance at nighttime. And, the place was required to improve environment and to expand number and scale of the police stations from point of view of criminal policy.
        6,700원
        392.
        2007.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        5,400원
        393.
        2007.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
          The objective of this research is to select the most effective technique among task related techniques(motion & time study, job redesign, physical environment improvement) for improving work efficiency in shipbuilding enterprise. This study consists of
        4,000원
        394.
        2007.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        6,600원
        396.
        2007.04 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The purpose of this study was to elicit types of food-related lifestyle of undergraduates and to examine the relationship between each ape of food-related lifestyle and an attribute of selecting a restaurant. Self-administrated questionnaires were completed by 368 students and data were analysed by frequency, factor, reliability and canonical correlation. Five factors were obtained from factor analysis of food-related lifestyle ; Factor1 'health seeking type', Factor2 'taste seeking type', Factor3 'Popularity seeking type', Factor4 'safety seeking type', Factor5 'mood seeking type'. Restaurant selection attribute were extracted into six factors, Factor1 'taste and service', Factor2 'interior‘, Factor3 'convenient for approach', Factor4 'marketing strategy', Factor5 'food quality', Factor6 ’menu and price‘ Canonical correlation analysis showed two significant functions. Canonical function1 showed that food-related lifestyles of taste seeking type and safety seeking type were indicated to have significant positive relationships with the food qualify, taste and service in the restaurant selection attributes. Canonical function2 also showed that a significant positive relationships between health seeking type and accessibility, and a significant negative relationships between health seeking type and taste & service and between health seeking type and menu & price. Finally the result of the study provide some insight into the types of marketing stratagem that can be effectively used by operator who manage restaurant.
        4,000원
        397.
        2007.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
          Automobile manufacturing companies should provide the products and service that can satisfy consumers who usually want various kinds of automobiles. This paper studied the relations among several demographic characteristics(gender, age, occupation, inco
        4,000원
        398.
        2007.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        청색, 흑색, 적색 및 회색 차광망을 이용하여 광질 의 선택적 투과를 통한 효과적인 화색 발현과 시설내 기온 및 엽온 저하를 통한 국화의 생육 증진을 목적 으로 본 연구를 수행 하였다. 조도는 차광망의 종류에 관계없이 48~51% 저하되었으며 기온은 흑색과 청색, 엽온은 적색 및 청색 차광망 처리시 낮게 측정되었다. 적색과 회색 차광망 처리시 초장, 절화장, 화수경경 및 화폭은 크고 굵었으나 청색과 흑색 차광망 처리시는 반대의 경향이었으며 개화소요일수는 청색과 흑색 차 광망 처리시 8~9일 지연되었고 소화수 역시 감소하는 결과를 볼 수 있었다. 엽록소 함량은 청색차광망 처리 시 높았고 안토시안 함량은 회색을 제외한 청색, 흑색 및 적색 차광망 처리시 높게 나타났다. 결과적으로 볼 때 청색과 흑색 차광망 처리는 엽록소 함량과 안토시 안 함량 및 색도 a값은 높았으나 생육이 저조하였으며 개화 지연이 발생하였다. 그러나 적색 차광망 처리시에 는 초장과 절화장이 크고 생육이 양호하였으며 엽록소 함량과 안토시안의 함량 또한 높게 나타나 하절기 유 색국화 화색퇴화 방지를 위한 차광망 처리에는 적색 차광망 처리가 유용할 것으로 생각되었다.
        4,000원
        399.
        2006.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The purpose of this study is to establish English as elective subjects for 11~12 grades in Korean high schools. This study was conducted in the form of survey including a total of 1,923 participants, consists of 728 high school English teachers, 984 high school students, and 939 parents. The questionnaire consisted of nine questions, and which were designed to elicitate the participants perception and needs on English as the elective subjects in high schools. The results of the study indicate that 1) we need the subjects that include 4 skills(listening, speaking, reading, and writing), 2) binding listening and speaking skills together will meet the need of students and parents who want to choose conversation-only subjects, 3) on the other hand, binding reading and writing skills together will meet the needs of the students who want to prepare for establishing the academic basis in the future. 4) Various proficiency in English between students requires various level of the elective subjects in high school English. On the basis of these results, this study suggests we need 1) the subjects which deals with 4 skills on the basis of traditional concept, and 2) ‘listening and speaking’ subjects and ‘reading and writing’ subjects. And the subjects should have various levels between the highest level to the lowest level.
        6,400원
        400.
        2006.12 구독 인증기관 무료, 개인회원 유료
        The purpose of this study is to re-examine the actual conditions of operation of classes on selective physical education subjects and provide basic data for effective operation of such subjects by understanding the degrees of high school students' recogni
        5,800원