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검색결과 888건 처리시간 0.03초

적외선 난방등을 이용한 난방이 딸기의 생육과 난방비에 미치는 영향 (Effect of Heating by Infrared Heating Lamps on Growth of Strawberry and Heating Cost)

  • 안재욱;안철근;황연현;윤혜숙;장영호;손길만;정병룡
    • 생물환경조절학회지
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    • 제22권4호
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    • pp.355-360
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    • 2013
  • 2개의 단동 수막 비닐하우스에 보조난방으로 경유 온풍기와 적외선 난방등을 설치하고 야간최저온도를 $6^{\circ}C$로 설정하여 '설향' 딸기를 재배하였다. 하우스 내부의 평균 야간온도는 적외선난방이 $6.6^{\circ}C$로 온풍난방의 $7.1^{\circ}C$와 비슷하였지만 외기의 최저온도가 $-10^{\circ}C$ 이하로 내려갈 경우 온풍난방은 내부온도의 변화가 적은 반면 적외선난방은 설정한 온도 이하로 내려가는 경우도 있었다. 상대습도는 보조난방 종류와 관계없이 수막시스템의 영향으로 98% 이상으로 높았다. 엽온의 변화를 열화상 카메라로 촬영했을 때 적외선 난방등이 켜졌을 때와 꺼졌을 때 사이에 $5^{\circ}C$ 정도의 차이를 보였으며 적외선 복사선이 식물체에 직접적으로 미치는 범위는 제한적이었다. 딸기의 화경장과 초장은 적외선등 난방을 한 하우스가 온풍난방을 한 하우스보다 증가하는 경향을 보였고 잎의 크기, 엽수, 1화방 화수, 분지수에서는 통계적인 차이를 보이지 않았다. 수확과수와 당도, 경도, 평균과중 및 수량은 차이를 보이지 않았고 경유 온풍기는 면세유 543L를 사용하여 622,662원이 소요된 반면 적외선 난방등은 농업용(병) 5,685kW를 사용하여 235,284원이 소요되어 약 62.2%의 난방비를 절감할 수 있었다.

고온 금속필터 element 표면에 생성된 반점에 대한 평가 (Evaluation of Dark Spots Formated on the High Temperature Metal Filter Elements)

  • 박승철;황태원;문찬국
    • 방사성폐기물학회지
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    • 제6권3호
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    • pp.171-178
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    • 2008
  • 중 저준위 방사성폐기물 유리화 실증시설의 고온필터(HTF)시스템에 금속필터를 도입하여 일련의 성능시험을 수행하였다. 고온필터시스템의 여과재는 총 19개의 필터 element로 구성되는데 필터로서 금속 재질별 특성을 알기 위해 316L, 904L, Inconel 600 등 3종의 element를 혼합하여 필터set를 구성하였다. 매 시험을 종료한 후에는 필터하우징에서 종류별로 필터 element를 꺼내어 육안으로 변화를 관찰하였다. 그 결과 일부 element 표면에서 어두운 색깔의 반점들이 관찰되었으며, 특히 AISI 316L 재질의 element에서 많은 반점들이 발견되었다. 이 반점들이 부식을 의미하는 것인지 확인하기 위해 두 가지 분석을 수행하였다. 첫째 재질별로 1개씩의 element를 절단하여 정상적인 곳과 반점이 있는 곳의 표면 및 단면을 SEM/EDS로 분석하였다. 그 결과 반점은 Na, S, Si 등 무기계 산화물이 집중적으로 침적되어 필터의 미세기공을 막고 있는 현상으로 밝혀졌으며, 이 침적물들은 폐기물 및 유리용탕으로 부터 휘발된 물질로 판단된다. 둘째, 재질별로 필터 element에 대해 ring tensile시험을 수행하였다. 그 결과 반점을 포함한 시험 필터 element의 인장강도 값이 규정값 이상으로 나타나서 필터에 부식이 없는 것으로 확인되었다. 앞서 두 가지 분석결과로 볼 때 시험한 금속필터 표면에 생성된 반점은 부식생성물이라기 보다는 필터 전단으로부터 유입된 무기산화물 필터기공을 막고 있는 현상으로 판단되며, 이 반점이 반점형태로 국부적 지점에만 나타나는 것은 시험 중단시기 필터에 응축된 수분과 관련이 있는 것으로 판단된다. 반점의 생성은 필터의 유효 여과면적이 줄어 결과적으로 필터에 걸리는 압력손실이 커지기 때문에 필터하우징의 상시보온을 통한 응축 방지가 필요할 것으로 판단된다. 아울러, 보다 장시간의 시험을 통해 필터 부식현상에 대한 검증 필요하다고 판단된다.

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제주도 한림 연안 정치망어장의 환경특성과 어획량변동에 관한 연구 I. 수온 및 염분특성 (Environmental Characteristics and Catch Fluctuations of Set Net Ground in the Coastal Water of Hanlim in Cheju Island I. Properties of Temperature and Salinity)

  • 김준택;정동근;노홍길
    • 한국수산과학회지
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    • 제31권6호
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    • pp.859-868
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    • 1998
  • 제주도 서부 연안역인 한림 정치망어장의 해황특성 (수온 및 염분분포)을 규명하기 위해 1995년과 1996년에 실시한 정선조사의 수온 및 염분자료를 검토$\cdot$분석한 결과를 요약하면 다음과 같다. 1. 제주도 서부연안역중 해안에서 2$\~$3mile 떨어진 외측 (Sta. 1, 2)은 11월부터 익년 5월까지는 제주도 서쪽해역에 출현하는 대마난류수의 주류부가 통과하여 $14^{\circ}C$ 이상의 고수온과 $34.40\%_{\circ}\~34.60\%_{\circ}$의 고염분이 표층부터 저층까지 균질하게 분포하지만 6월부터 10월까지는 제주해역에 저염분수인 중국대륙연안수가 출현하여 표층은 고수은, 저염분수가 되고 중$\cdot$저층은 $11^{\circ}C\~14^{\circ}C$의 저수온, $33.50\%_{\circ}$ 이상의 고염분이 유지되므로 심한 수온 및 염분약층이 나타는데 반해 이 해역은 해쳐 중앙역보다 표층은 수온이 낮고 염분은 높으며 저층은 수온이 높고 염분이 낮은 조석전선역의 수온 및 염분분포가 나타난다. 그러므로 년중 표층수온은 $14^{\circ}C\~23^{\circ}C$ 염분은 $36.60\%_{\circ}\~34.60\%_{\circ}$로 수온의 년교차는 $9^{\circ}C$, 염분의 년교차는 $4.00\%_{\circ}$ 정도로 연안역임에도 불구하고 제주해협 중앙부의 년교차($14^{\circ}C\~20^{\circ}C$, $4.00\%_{\circ}\~10.40\%_{\circ}$)보다 매우 작다. 저층수온은 년중 $14^{\circ}C\~20^{\circ}C$의 범위로 수온 변화폭이 작고 제주해협 서쪽입구에 출현하는 $11^{\circ}C\~13^{\circ}C$의 저온수도 나타나지 않는다. 그러나 저층 염분은 1995년에 $33.60\%_{\circ}\~34.40\%_{\circ}$이지만 1996년의 경우는 6월부터 표$\cdot$저층 모두 현저하게 염분이 저하하여 전층이 $32.00\%_{\circ}$ 이하의 저염분수가 출현하고 있어 이 해역의 동계의 해황은 년별 변화가 적지만 하계에는 중국대륙연안수의 영향, 즉 양자강수의 년별 유출량 변화에 따라 해황의 년별 변화가 심한 해역이 다. 2. 해안에서 2mile 이내의 제주도 서부 연안역은 하계의 경우 조류에 의한 연직혼합으로 표층 저온수, 국지적인 와, 수온, 염분전선 등이 나타나 비교적 복잡한 해황이 출현하며, 특히 비양도 주변 해역의 저층수는 수심변화와 더불어 수온$\cdot$염분이 변해 10m미만의 천소에서 50m의 심소 사이에는 심한 수온$\cdot$염분전선이 형성되고, 월령리와 금릉리 사이에는 고온$\cdot$저염분수인 외측의 표층수가 연안 가까이까지 침입하므로 이 연안에서 비양도를 잇는 선을 중심으로 수온$\cdot$염분전선이 형성된다. 또, 수심 l0m이하의 연안 천소라 할지 라도 저층수는 표층수보다 수온은 $2^{\circ}C\~4^{\circ}C$ 낮고 염분은 $0.02\%_{\circ}\~0.08\%_{\circ}$정도 높다.

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MMORPG에서 길드 구성원들의 사회적 지지와 심리적 요인들이 플로우 및 충성도에 미치는 영향 (The Impacts of Social Support and Psychological Factors on Guild Members' Flow and Loyalty in MMORPG)

  • 강주선;고윤정;고일상
    • Asia pacific journal of information systems
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    • 제19권3호
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    • pp.69-98
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    • 2009
  • We investigated what factors motivate gamers to participate in a guild and why they continue to be engaged as members of the guild. We find that, based on the result of focus group interviews with MMORPG gamers, social support and self-esteem factors play important roles. Considering both prior research and the focus group interviews we have conducted, we define social support and character control as independent variables. Character identity, guild identity, and self-esteem are proposed as mediating variables while guild flow and game loyalty as dependent variables. Accordingly, we develop the research model and hypotheses, and verify them empirically. Based on our experiences of playing the WoW game, we proposed a research model and conducted focus-group interviews (FGIs). FGIs involve formulating a hypothesis and then collecting some relevant data. FGIs were conducted face-to-face with students of C University in Korea. We formulated structured interview schedules, and the questions were based on our research variables and personal experiences. The questions for the interviews encompassed the following areas: (a) the demographic characteristics of the focus group; (b) the number of years for which respondents had played online games; (c) the motive for starting a game; (d) the number of game-characters assumed by each gamer; (e) the type of game played; and (f) other issues such as the reasons for involvement in the play, the willingness to reuse the game in case new versions were released, etc. On average, it took two hours to interview each of three groups. A primary set of FGIs was conducted with three groups on the premise that there would be some differences caused by character race (Horde vs. Alliance) or by playable server (Normal vs. Combat). With respect to the manner of playing, we found that guild members shared information, felt a sense of belonging, and played computer games for quite a long time through the guild; however, they did not undergo these experiences when playing alone. Gamers who belonged to a specific guild helped other players without expecting compensation for that, freely shared information about the game, gave away items for free, and more generous with other members who made mistakes. The guild members were aware of the existence other members and experienced a sense of belonging through interactions with, and evaluations from, other players. It was clear that social support was shown within the guild and that it played an important role as a major research variable. Based on the results of the first FGIs, a second set of in-depth FGIs was carried out with a focus on the psychology of the individual within the guild and the social community of the guild. The second set of FGIs also focused on the guild's offline meetings. Gamers, over all, recognize the necessity of joining a community, not only off-line but also online world of the guild. They admit that the guild is important for them to easily and conveniently enjoy playing online computer games. The active behavior and positive attitudes of existing guild members can motivate new members of the guild to adapt themselves to the guild environment. They then adopt the same behaviors and attitudes of established guild members. In this manner, the new members of the guild strengthen the bonds with other gamers while feeling a sense of belonging, and developing social identity, thereby. It was discovered that the interaction among guild members and the social support encouraged new gamers to quickly develop a sense of social identity and increase their self-esteem. The guild seemed to play the role of socializing gamers. Sometimes, even in the real world, the guild members helped one another; therefore, the features of the guild also spilled over to the offline environment. We intend to use self-esteem, which was found through the second set of FGIs, as an important research variable. To collect data, an online survey was designed with a questionnaire to be completed by WoW gamers, who belong to a guild. The survey was registered on the best three domestic game-sites: 'WoW playforum,' 'WoW gamemeca,' and 'Wow invent.' The selected items to be measured in the questionnaire were decided based on prior research and data from FGIs. To verify the content of the questionnaire, we carried out a pilot test with the same participants to point out ambiguous questions as a way to ensure maximum accuracy of the survey result. A total of 244 responses were analyzed from the 250 completed questionnaires. The SEM analysis was used to test goodness-of-fit of the model. As a result, we found important results as follows: First, according to the statistics, social support had statistically significant impacts on character control, character identity, guild identity and self-esteem. Second, character control had significant effects on character identity, guild identity and self-esteem. Third, character identity shows its clear impact on self-esteem and game loyalty. Fourth, guild identity affected self-esteem, guild flow and game loyalty. Fifth, self-esteem had a positive influence on the guild flow. These days, the number of virtual community is rising along with its significance largely because of the nature of the online games. Accordingly, this study is designed to clarify the psychological relationship between gamers within the guild that has been generally established by gamers to play online games together. This study focuses on the relationships in which social support influences guild flow or game loyalty through character control, character identity, guild identity, and self-esteem, which are present within a guild in the MMORPG game environment. The study results are as follows. First, the effects of social support on character control, character identity, guild identity and self-esteem are proven to be statistically significant. It was found that character control improves character identity, guild identity and self-esteem. Among the seven variables, social support, which is derived from FGIs, plays an important role in this study. With the active support of other guild members, gamers can improve their ability to develop good characters and to control them. Second, character identity has a positive effect on self-esteem and game loyalty, while guild identity has a significant effect on self-esteem, guild flow and game loyalty. Self-esteem affects guild flow. It was found that the higher the character and guild identities become, the greater the self-esteem is established. Contrary to the findings of prior research, our study results indicate that the relationship between character identity and guild flow is not significant. Rather, it was found that character identity directly affects game players' loyalty. Even though the character identity had no direct effect on increasing guild flow, it has indirectly affected guild flow through self-esteem. The significant relationship between self-esteem and guild flow indicates that gamers achieve flow, i.e., a feeling of pleasure and excitement through social support. Several important implications of this study should be noted. First, both qualitative and quantitative methods were used to conduct this study. Through FGIs, it was observed that both social support and self-esteem are important variables. Second, because guilds had been rarely studied, this research is expected to play an important role in the online community. Third, according to the result, six hypotheses (H1, H5, H6, H7, H8, and H11) setup based on FGIs, were statistically significant; thus, we can suggest the corresponding relationships among the variables as a guideline for follow-up research. Our research is significant as it has following implications: first, the social support of the guild members is important when establishing character control, character identity, guildidentity and self-esteem. It is also a major variable that affects guild flow and game loyalty. Second, character control when improved by social support shows notable influence on the development of character identity, guild identity and self-esteem. Third, character identity and guild identity are major factors to help establish gamers' own self-esteem. Fourth, character identity affects guild flow through self-esteem and game loyalty. The gamers usually express themselves through characters; the higher character identity is, the more loyalty a gamer has. Fifth, guild identity, established within the guild, has clear effects on self-esteem, guild flow and game loyalty. Sixth, qualitative and quantitative methods are employed to conduct this study. Based on the results of focus group interviews and SEM analysis, we find that the social support by guild members and psychological factors are significant in strengthening the flow of guild and loyalty to the game. As such, game developers should provide some extra functions for guild community, through which gamers can play online games in collaboration with one another. Also, we suggest that positive self-esteem which is built up through social support can help gamers achieve higher level of flow and satisfaction, which will consequently contribute to minimizing the possibility for the players to develop negative attitude toward the guild they belong to.

시장 환경이 인터넷 경로를 포함한 다중 경로 관리에 미치는 영향에 관한 연구: 게임 이론적 접근방법 (The Impact of Market Environments on Optimal Channel Strategy Involving an Internet Channel: A Game Theoretic Approach)

  • 유원상
    • 한국유통학회지:유통연구
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    • 제16권2호
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    • pp.119-138
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    • 2011
  • 지난 십년동안 인터넷을 통한 전자상거래는 빠른 속도로 성장해 왔다. 이러한 인터넷의 발달은 기업들의 사업방식에 많은 변화를 유도했으며, 그 중에서도 마케팅경로의 구조와 경로 구성원들 사이의 관계에 중요한 변화를 초래하고 있다. 각 기업이 처한 시장환경은 다양하며 이 다양한 시장 환경은 인터넷 경로가 각 시장에 미치는 효과를 조절하는 역할을 한다. 이러한 시장의 다양성에도 불구하고 지금까지의 선행연구들은 각기 특정한 하나의 시장상황(unique setting)을 상정하여 인터넷경로 도입이 그 시장에 미치는 영향을 분석하는데 그쳐왔다. 이러한 기존 연구의 공백을 채우기 위해 본 연구는 시장의 다양성을 소비자의 지리적 분포, 시장의 인터넷 수용도의 측면에서 살펴보고 이러한 시장 환경이 인터넷 경로 도입 효과에 미치는 영향에 관하여 조사해 보고자 한다. 이를 위해 본 연구는 다양한 소비자들의 지리적 분포, 경쟁강도, 소비자의 인터넷 상거래에 대한 수용도 등을 포함한 다양한 시장 환경을 수요모형에 반영시켜 그 영향력 분석을 가능하도록 하였다. 그러나, 다양한 시장 요소를 모형에 반영하는 과정에서 수요모형이 복잡한 구조를 가지게 되었다. 이 문제를 극복하고 게임이론의 균형해를 도출하기 위해 Newton-Raphson algorithm을 사용한 numerical search 방법을 사용하였다. 분석결과 두 종류의 경로에 대한 소비자선호의 분포에 따라 생산자의 가격차별정도, 생산자와 독립소매상 간의 경로이윤 배분율, 그리고 인터넷경로 도입이 각 경로주체의 이윤 향상에 도움이 되는지의 여부, 소비자잉여 등이 달라질 수 있음을 발견하였다. 끝으로 연구의 학술적, 실무적 시사점과 한계점 및 향후 연구방향도 논의되었다.

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중국의 사지서목에 대하여 -육사예문$\cdot$경적지의 분류 및 편목체재 비교를 중심으로- (On the Bibliographies of Chinese Historical Books - Classifying and cataloguing system of six historical bibliographies -)

  • 강순애
    • 한국문헌정보학회지
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    • 제24권
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    • pp.289-332
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    • 1993
  • In china, six bibliographies of offical historical books are evaluated at the most important things among the systematically-editing bibliographies. These bibliographies would be usful to study the orign of classical sciences and their development, bibliographic research of Chinese classics, bibliographic judgement on genuine books, titles, authors, volumes. They could be refered to research into graving, correcting, and existence of ancient books. therefore, these bibliographies would be applied to estimation the phase of scientific and cultural development. The study of these bibliographies has been not yet made in Korea. This thesis lays its importance on the background of their appearance, their classification norms, organizing system of their catalogue, and comparison between their difference. 1. Editing and compiling of Chilyak (칠약) by Liu Chin (유흠) and official histories played an important role of entering an apperance of historical book's bibliographies. Chilyak has been lost. However, its classification and compiling system of classical books would be traced by Hansoyemunji(한서예문지) of which basic system is similar to Chilyak. It classified books according to their scientific characteristic. If a few books didn't have their own categories, they were combined by the circles parallel to the books' characteristic. With the books classified under the same scientific characteristic, they were again divided into the scientific schools or structures. It also arranged the same kinds of books according to the chronology. The some books wi th duplicate subjects were classified multiplely by their duplicate subject. 2. Ssu-ma Chon's (사마천) The Historical Records (Saki, 사기) and Pan Ku's (반고) The History of the Former Han Dynasty (Hanso, 한서) has also took effects on appearance of historical books' bibliographies. Covering overall history, Saki was structured by the five parts: The basic annals(본기), the chronological tables (표), the documents (서), the hereditary houses (세가), biographies (열전). The basic annals dealt with kings and courts' affairs according to the chronology. The chronological tables was the records of the annals. The documents described overall the social and cultural systems. The hereditary houses recorded courts' meritorious officials and public figures. The biographies showed exemplars of seventy peoples selected by their social status. Pan Ku(반구)'s The History of the Former Han Dynasty(한서) deserved to be called the prototype for the offical histories after Saki's (사기; The Historical Records) apperance. Although it modelled on Saki, it had set up its own cataloguing system. It was organized by four parts; the basic annals (본기), the chronological tables (표), treatises(지), biographies (열전). The documents in the Hanso(한서) was converted into treatises(지). The hereditary houses and biographies were merged. For the first time, the treatise with The Yemunji could operate function for historical bibliographies. 3. There were six historical bibliographies: Hansoyemunji(한서예문지), Susokyongjeokji (수서경적지), Kudangsokyongjeokji(구당서경적지), Shindangsoyemunji (신당서예문지), Songsayemunji (송사예문지), Myongsayemunji (명사예문지). 1) Modelling on Liu Chin's Chilyak except Chipryak(집략), Hansoyemunji divided the characteristic of the books and documents into six parts: Yukrye(육예), Cheja(제자), Shibu(시부), Pyongsoh(병서), Susul(수술), Pangki(방기). Under six parts, there were thirty eight orders in Hansoyemunji. To its own classification, Hansoyemunji applied the Chilyak's theory of classification that the books or documents were managed according to characteristic of sciences, the difference of schools, the organization of sentences. However the overlapped subjects were deleted and unified into one. The books included into an unsuitable subject were corrected and converted into another. The Hansoyemunji consisted of main preface (Taesoh 대서), minor preface (Sosoh 소서) , the general preface (Chongso 총서). It also recorded the introduction of books and documents, the origin of sciences, the outline of subjects, and the establishment of orders. The books classified by the subject had title, author, and volumes. They were rearranged by titles and the chronological publication year. Sometimes author was the first access point to catalogue the books. If it was necessary for the books to take footnotes, detail notes were formed. The Volume number written consecutively to order and subject could clarify the quantity of books. 2) Refering to Classfication System by Seven Norms (칠분법) and Classification System by Four Norms(사분법), Susokyongjeokji(수서경적지) had accomplished the classification by four norms. In fact, its classification largely imitated Wanhyosoh(완효서)'s Chilrok(칠록), Susokyongjeokji's system of classification consisted of four parts-Kyung(경), Sa(사), Cha(자), Chip(칩). The four parts were divided into 40 orders. Its appendix was again divided into two parts, Buddihism and Taiosm. Under the two parts there were fifteen orders. Totally Susokyongjeokji was made of six parts and fifty five orders. In comparison with Hansoyemunji(한서예문지), it clearly showed the conception of Kyung, Sa, Cha, Chip. Especially it deserved to be paid attention that Hansoyemunji laied history off Chunchu(춘추) and removed history to Sabu(사부). However Chabu(사부) put many contrary subjects such as Cheja(제자), Kiye(기예), Sulsu(술수), Sosol(소설) into the same boundary, which committed errors insufficient theoretical basis. Anothor demerit of Susokyongjeokji was that it dealt with Taiosm scriptures and Buddism scriptures at the appendix because they were considered as quasi-religion. Its compilation of bibliographical facts consisted of main preface(Taesoh 대서), minor preface(Sosoh 소서), general preface (Chongsoh 총서), postscript (Husoh 후서). Its bibliological facts mainly focused on the titles. Its recorded authors' birth date and their position. It wrote the lost and existence of books consecutive to total number of books, which revealed total of the lost books in Su Dynasty. 3) Modelling on the basis of Kokumsorok(고분서록) and Naewaekyongrok(내외경록), Kudangsokyongjeokji(구당서경적지) had four parts and fourty five orders. It was estimated as the important role of establishing basic frame of classification by four norms in classification theory's history. However it had also its own limit. Editing and compling orders of Kudangsokyongjeokji had been not progressively changed. Its orders imitated by and large Susokyongjeokji. In Its system of organizing catalogue, with its minor preface and general preface deleting, Kudangsokyongjeokji by titles after orders sometimes broke out confusion because of unclear boundaries between orders. 4) Shindangsoyemunji(신당서예문지), adding 28,469 books to Kudangsokyongjeokji, recorded 82,384 books which were divided by four parts and fourty four orders. In comparison with Kudangkyongjeokj, Sindangsoyemunji corrected unclear order's norm. It merged the analogical norms four orders (for instance, Kohun 고훈 and Sohakryu 소학류) and seperated the different norms four orders (for example, Hyokyong 효경 and Noneuhryu 논어류, Chamwi 참위 and Kyonghaeryu 경해류, Pyonryon 편년 and Wisaryu 위사류). Recording kings' behaviors and speeches (Kikochuryu 기거주류) in the historical parts induced the concept of specfication category. For the first time, part of Chipbu (집부) set up the order of classification norm for historical and literatural books and documents (Munsaryu 문사류). Its editing and compiling had been more simplified than Kudangsokyongjeokji. Introduction was written at first part of bibliographies. Appendants except bibliographic items such subject, author, title, volume number, total were omitted. 5) Songsayemunji(송사예문지) were edited in the basis of combining Puksong(북송) and Namsong(남송), depending on Sabukuksayemunji(사부국사예문지). Generally Songsayemunji had lost a lot of bibliographical facts of many books. They were duplicated and wrongly classified books because it committed an error of the incorrectly annalistic editing. Particularly Namsong showed more open these defaults. Songsayemunji didin't include the books published since the king Youngchong(영종). Its system of classification was more better controlled. Chamwiryu(참위류) in the part of Kyongbu(경부) was omitted. In the part of history(Sabu 사부), recordings of kings' behaviors and speeches more merged in the annals. Historical abstract documents (Sachoryu 사초류) were seperately arranged. In the part of Chabu(자부), Myongdangkyongmaekryu(명당경맥류) and Euisulryu(의술류) were combined. Ohangryu(오행류) were laied off Shikuryu(시구류). In the part of Chipbu(집부), historical and literatural books (Munsaryu 문사류) were independentely arranged. There were the renamed orders; from Wisa(위사) to Paesa(패사), Chapsa (잡사) to Pyolsa(열사), Chapchonki(잡전기) to Chonki(전기), Ryusoh(류서) to Ryusa(류서). Introduction had only main preface. The books of each subject catalogued by title, the volume number, and author and arranged mainly by authors. Annotations were written consecutively after title and the volume number. In the afternote the number of not-treated books were revealed. Difference from Singdangsohyemunji(신당서예문지) were that the concept and boundary of orders became more clearer. It also wrote the number of books consecutive to main subject. 6) Modelling on Chonkyongdangsomok (경당서목), Myongsayemunji(명사예문지) was compiled in the basis of books and documents published in the Ming Danasty. In classification system, Myongsayemunji partly merged and the seperated some orders for it. It also deleted and renamed some of orders. In case of necessity, combining of orders' norm was occured particulary in the part of Sabu(사부) and Chabu(자부). Therefore these merging of orders norm didn't offer sufficient theretical background. For example, such demerits were seen in the case that historical books edited by annals were combined with offical historical ones which were differently compiled and edited from the former. In the part of Chabu(자부), it broke out another confusion that Pubga(법가), Meongga(명가), Mukga(묵가), Chonghweongka's(종횡가) thoughts were classified in the Chapka(잡가). Scriptures of Taiosim and Buddhism were seperated from each other. There were some deleted books such as Mokrokryu(목록류), Paesaryu(패사류) in the part of history (Sabu 사부) and Chosaryu(초사류) in the part of Chipbu(집부). The some in the each orders had been renamed. Imitating compiling system of Songsayemunji(송사예문지), with reffering to its differ-ence, Myongsayemunji(명사예문지) wrote the review and the change of the books by author. The number of not-treated books didn't appear at the total. It also deleted the total following main subject.

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도입주체에 따른 인터넷경로의 도입효과 (The Impact of the Internet Channel Introduction Depending on the Ownership of the Internet Channel)

  • 유원상
    • 마케팅과학연구
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    • 제19권1호
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    • pp.37-46
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    • 2009
  • The Census Bureau of the Department of Commerce announced in May 2008 that U.S. retail e-commerce sales for 2006 reached $ 107 billion, up from $ 87 billion in 2005 - an increase of 22 percent. From 2001 to 2006, retail e-sales increased at an average annual growth rate of 25.4 percent. The explosive growth of E-Commerce has caused profound changes in marketing channel relationships and structures in many industries. Despite the great potential implications for both academicians and practitioners, there still exists a great deal of uncertainty about the impact of the Internet channel introduction on distribution channel management. The purpose of this study is to investigate how the ownership of the new Internet channel affects the existing channel members and consumers. To explore the above research questions, this study conducts well-controlled mathematical experiments to isolate the impact of the Internet channel by comparing before and after the Internet channel entry. The model consists of a monopolist manufacturer selling its product through a channel system including one independent physical store before the entry of an Internet store. The addition of the Internet store to this channel system results in a mixed channel comprised of two different types of channels. The new Internet store can be launched by the independent physical store such as Bestbuy. In this case, the physical retailer coordinates the two types of stores to maximize the joint profits from the two stores. The Internet store also can be introduced by an independent Internet retailer such as Amazon. In this case, a retail level competition occurs between the two types of stores. Although the manufacturer sells only one product, consumers view each product-outlet pair as a unique offering. Thus, the introduction of the Internet channel provides two product offerings for consumers. The channel structures analyzed in this study are illustrated in Fig.1. It is assumed that the manufacturer plays as a Stackelberg leader maximizing its own profits with the foresight of the independent retailer's optimal responses as typically assumed in previous analytical channel studies. As a Stackelberg follower, the independent physical retailer or independent Internet retailer maximizes its own profits, conditional on the manufacturer's wholesale price. The price competition between two the independent retailers is assumed to be a Bertrand Nash game. For simplicity, the marginal cost is set at zero, as typically assumed in this type of study. In order to explore the research questions above, this study develops a game theoretic model that possesses the following three key characteristics. First, the model explicitly captures the fact that an Internet channel and a physical store exist in two independent dimensions (one in physical space and the other in cyber space). This enables this model to demonstrate that the effect of adding an Internet store is different from that of adding another physical store. Second, the model reflects the fact that consumers are heterogeneous in their preferences for using a physical store and for using an Internet channel. Third, the model captures the vertical strategic interactions between an upstream manufacturer and a downstream retailer, making it possible to analyze the channel structure issues discussed in this paper. Although numerous previous models capture this vertical dimension of marketing channels, none simultaneously incorporates the three characteristics reflected in this model. The analysis results are summarized in Table 1. When the new Internet channel is introduced by the existing physical retailer and the retailer coordinates both types of stores to maximize the joint profits from the both stores, retail prices increase due to a combination of the coordination of the retail prices and the wider market coverage. The quantity sold does not significantly increase despite the wider market coverage, because the excessively high retail prices alleviate the market coverage effect to a degree. Interestingly, the coordinated total retail profits are lower than the combined retail profits of two competing independent retailers. This implies that when a physical retailer opens an Internet channel, the retailers could be better off managing the two channels separately rather than coordinating them, unless they have the foresight of the manufacturer's pricing behavior. It is also found that the introduction of an Internet channel affects the power balance of the channel. The retail competition is strong when an independent Internet store joins a channel with an independent physical retailer. This implies that each retailer in this structure has weak channel power. Due to intense retail competition, the manufacturer uses its channel power to increase its wholesale price to extract more profits from the total channel profit. However, the retailers cannot increase retail prices accordingly because of the intense retail level competition, leading to lower channel power. In this case, consumer welfare increases due to the wider market coverage and lower retail prices caused by the retail competition. The model employed for this study is not designed to capture all the characteristics of the Internet channel. The theoretical model in this study can also be applied for any stores that are not geographically constrained such as TV home shopping or catalog sales via mail. The reasons the model in this study is names as "Internet" are as follows: first, the most representative example of the stores that are not geographically constrained is the Internet. Second, catalog sales usually determine the target markets using the pre-specified mailing lists. In this aspect, the model used in this study is closer to the Internet than catalog sales. However, it would be a desirable future research direction to mathematically and theoretically distinguish the core differences among the stores that are not geographically constrained. The model is simplified by a set of assumptions to obtain mathematical traceability. First, this study assumes the price is the only strategic tool for competition. In the real world, however, various marketing variables can be used for competition. Therefore, a more realistic model can be designed if a model incorporates other various marketing variables such as service levels or operation costs. Second, this study assumes the market with one monopoly manufacturer. Therefore, the results from this study should be carefully interpreted considering this limitation. Future research could extend this limitation by introducing manufacturer level competition. Finally, some of the results are drawn from the assumption that the monopoly manufacturer is the Stackelberg leader. Although this is a standard assumption among game theoretic studies of this kind, we could gain deeper understanding and generalize our findings beyond this assumption if the model is analyzed by different game rules.

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경찰화재조사의 개선방안에 관한 연구 (A Study on the Improvement Plans of Police Fire Investigation)

  • 서문수철
    • 한국화재조사학회지
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    • 제9권1호
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    • pp.103-121
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    • 2006
  • 우리나라에서 발생한 화재 원인조사 대부분은 소방관서에서 초기조사, 경찰관서에서 수사가 진행되고 있으며, 보다 난해하거나 이해관계가 복잡한 경우인 일부만이 경찰에서 심도 있게 조사하고 경찰조사 시 감정이 필요한 경우 감정기관에 감정의뢰 후 경찰관서 자체조사만으로 끝나며, 점차 전문기관에 의뢰되고 있는 건수가 증가하고 있는 실정이나 많은 문제점을 안고 있어 이에 대안을 제시한다. 국내 화재사고 발생 건수는 소방방재청 통계 연간 약 30만 건으로 추산되나, 전국 경찰화재감식 전문 요원(국립과학수사연구소 전문화 교육 이수자)은 80여명에 지나지 않으며, 국립과학수사연구소 화재감정 관련 연구원은 전국에 15명인 것에 비추어 사건화 된 화재에 대한 감식 감정 인력은 턱없이 모자라 과중한 업무를 수행하고 있는 실정이다. 가연성 액체에 의한 방 실화 시 바닥재의 연소형태를 비교 연구함으로써 연소에 사용된 연소촉매제에 대하여 추론 할 수 있는 연구를 실시하여 모델을 제시하였다. 화재사건 관련 감식 감정 업무를 담당하고 있는 경찰 및 국립과학수사연구소의 과중한 업무의 부담인 의뢰 건수의 폭주로, 경찰 화재 감식의 대상 중 범죄혐의(방화, 실화 등)가 있는 사건은 전체 조사 건수의 20% 미만이고, 나머지 80%에 달하는 사건이 범죄혐의 없는 제조물 관련 또는 이재 관계의 민사 소송 사건에 지나지 않는 것이 현실이다. 본 연구는 경찰화재조사 및 소방화재조사에 대한 검토와 문제점 대안 등을 제시하여 화재사건과 관련하여 경찰 소방 양 기관에서 합동으로 사건을 처리하는 것이 과오를 범하지 않는 효율적이고 과학적인 수사가 될 수 있다는 제도개선이 필요함이 요구된다.

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피부병의 형상의학적 치료 (Treatment of Skin Diseases in Hyungsang Medicine)

  • 석민희;황원덕;정행규;이용태
    • 동의생리병리학회지
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    • 제18권3호
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    • pp.646-669
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    • 2004
  • By treating skin diseases with Hyungsang medicine and reviewing the clinical cases of them through classifying skin diseases into general care and into Hyungsang medical care, the writer came to the conclusion as followings. The skin is a house of Kyungnak, and it' s a place which Ki comes in and out, which human body controls conditions of his physiological function and which doctors can make a diagnosis from seeing it. The skin is subject to lung and large intestine in the point of organ, but in the point of movement, to spleen and stomach. Skin diseases come from unbalance of Ki and Hyul, mostly from fever in blood and also from Dam, Wind, Dampness and Dryness because of including fire. Generally skin diseases are treated according to classifying into distinctive symptoms, region, cause or time being occurred, and concomitant symptoms. After being divided into man and woman, age and youth, fatness and leanness, Jung Ki Shin Hyul type, visceral figures, Yukkyung shapes on Hyungsang medicine method, the remedy of skin diseases which is combined common meditation with Hyungsang medical method is efficacious. In distinguishing into man and woman, age and youth, man gets sick mainly by drinking liquor and exhausting Jung, woman is taken ill generally by indigestion and Damwha, especially by drinking liquor. Young child gets ill mostly from inherent weakness, but in many cases he is occurred by disturbed digestion, so he must be taken care of ingesting food. The aged becomes ill from weakening, so he must be treated according to reasons of diseases. To fatness and leanness, skin diseases are showed symptoms by weakened Yang, insufficient Yin or excess fever on the theory of upper and lower parts, by unbalance of Ki and Hyul on the theory of left and right, by Dryness and Dampness on the theory of front and rear and by insufficiency of vitality and combined fever on the theory of inside and outside. Therefore doctors must cure the symptoms according to the theory of upper and lower, left and right, front and rear and inside and outside. In type of Jung Ki Shin Hyul, the balances between Jung-Hyul and Shin-Ki are important points. Concretely Jung type comes to easily shortage of Jung or gathering abnormally Dampness and Dam, Ki type is easy to make a mass with Ki or to be deficient of Ki, Shin type comes to press seven emotions togather or to be insufficient of Yin and fever inside, and Hyul type is inclined to be deficient of Hyul and to become feverish or to be deficient of Ki. Therefore on the ground of the above reasons skin diseases come into existence. Inclusively in Jung-Hyul type , Ki must be moved on the base of full Jung-Hyul, so Wukmijiwhangtang or Samultang is prescribed basically. In Shin-Ki type , Jung-Hyul is saved on the base of moving Ki, so Hyangsosan or Yijintang is the proper prescription. Considering the visceral figures, doctors judge for diagnosis and remedy by putting together the elements, that is, great and small sizes of a set of features (eye, ear, mouth, nose), color and temper. The yukkyung types are classified according to many or few of Ki-Hyul, and then skin diseases appear by being inclined toward one side between Ki and hyul, or among the six atmospheric elements(wind, cold, heat, dampness, dryness, and fire). Especially because Yangmyung type is full of much Ki and Hyul, and also has much fever in stomach, he gets skin symptoms frequently. So his prescription is based on taking off fever in stomach, and also he must be careful about regimen certainly.

식초절임 무의 HACCP 시스템 적용을 위한 미생물학적 위해 분석 (Microbiological Hazard Analysis for HACCP System Application to Vinegared Pickle Radishes)

  • 권상철
    • 한국식품위생안전성학회지
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    • 제28권1호
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    • pp.69-74
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    • 2013
  • 본 연구는 식초절임 무의 HACCP (Hazard Analysis Critical Control Point)시스템 구축을 위하여 생물학적 위해요소분석을 위한 목적으로 2012년 2월 1일~6월 31일까지 약 150일 동안 수행하였다. 일반적인 식초절임 무 제조업체의 제조공정을 참고로 하여 공정도를 작성하였으며, 식초절임 무의 원료 농산물(무), 용수, 첨가물과 포장재료에 입고, 보관, 정선, 세척, 표피제거, 절단, 선별, 충진, 내포장, 금속검출, 외포장, 보관 및 출하공정에 대하여 작성하였다. 원료 무의 세척 전, 세척 후의 Coliform group, Staphylococcus aureus, Salmonella spp., Bacillus cereus, Listeria Monocytogenes, E. coli O157:H7, Clostridium perfringens, Yeast 와 Mold를 측정한 결과 Bacillus cereus는 세척 전 $5.00{\times}10$ CFU/g이었으나, 세척 후 검출되지 않았으며, Yeast 와 Mold 는 세척 전 $3.80{\times}10^2$ CFU/g, 세척 후 10 CFU/g로 감소되었으며 나머지 병원성균은 검출되지 않았다. 조미액의 pH(2~5)별 미생물의 변화를 시험한 결과 모든 균이 검출되지 않은 pH 3~4를 조미액의 pH로 결정하였다. 작업장별 공중낙하균 (일반세균수, 대장균, 진균수) 시험결과 내포장실, 조미액가공실, 세척실, 보관실의 미생물수는 10 CFU/Plate, 2 CFU/Plate, 60 CFU/Plate 그리고 20 CFU/Plate 가 검출되었다. 종사자 손바닥 시험결과 일반세균수 346 $CFU/Cm^2$, 대장균군 23 $CFU/Cm^2$로 높게 나타나 개인위생관리에 대한 교육 및 훈련이 요구 되었다. 제조설비 및 기구의 표면오염도를 검사한 결과 모든 시료에서 대장균군은 검출되지 않았고, 일반세균은 PP Packing machin과 Siuping machine (PE Bulk)에서 가장 많은 $4.2{\times}10^3CFU/Cm^2$, $2.6{\times}10^3CFU/Cm^2$ 검출되었다. 위의 위해분석 결과 병원성미생물을 예방, 감소 또는 제거할 수 있는 조미액 가공 공정이 CCP-B (Biological)로 관리되어야 하고, 한계기준은 pH 3~4로 결정하였다. 따라서 전통한과생산에의 HACCP 모델 적용을 위한 미생물학적 위해도 평가에서와 같이 조미액 가공 공정의 관리기준 및 이탈시 조치방법, 검증방법, 교육 훈련과 기록관리 등 철저한 HACCP 관리계획이 필요할 것으로 생각된다.