• 제목/요약/키워드: Research type

검색결과 27,893건 처리시간 0.051초

Acinetobacter antiviralis sp. nov., from Tobacco Plant Roots

  • Lee, Jung-Sook;Lee, Keun-Chul;Kim, Kwang-Kyu;Hwang, In-Cheon;Jang, Cheol;Kim, Nam-Gyu;Yeo, Woon-Hyung;Kim, Beom-Seok;Yu, Yong-Man;Ahn, Jong-Seog
    • Journal of Microbiology and Biotechnology
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    • 제19권3호
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    • pp.250-256
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    • 2009
  • Acinetobacter strain $KNF2022^T$ was isolated from tobacco plant roots during the screening of antiviral substances having inhibitory effects on Tobacco mosaic virus (TMV) and examined by phenotypic, chemotaxonomic, and genetic characterization. It was a nonmotile, Gram-negative bacterium. This strain contained Q-9 as the main respiratory quinone. The major cellular fatty acids of the isolate were 16:0, 18:1 w9c, and 16:1 w7c/15 iso 2OH. The DNA base composition was 44 mol%. Phylogenetic analysis based on the 16S rRNA sequence revealed that the isolate formed an evolutionary lineage distinct from other Acinetobacter species. Based on the evaluation of morphologic, physiologic, and chemotaxonomic characteristics, DNA-DNA hybridization values, and 16S rRNA sequence comparison, we propose the new species Acinetobacter antiviralis sp. nov., the type strain of which is $KNF2022^T$ (=KCTC $0699BP^T$).

𝜓-TYPE CONTRACTION AND JAGGI TYPE HYBRID CONTRACTION IN BIPOLAR METRIC SPACES

  • Jong Kyu Kim;Manoj Kumar;Pankaj
    • Nonlinear Functional Analysis and Applications
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    • 제28권3호
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    • pp.703-717
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    • 2023
  • In this paper, we will introduce the notion of 𝜓-type and Jaggi type hybrid contraction in a bipolar metric space and show the existence and uniqueness of fixed point for such type of contractions. In the end, we will provide some corollaries and support our theorems by examples.

교과교실형 고등학교 홈베이스의 공간 특성 평가 연구 (A Study on the Evaluation of Characteristic for Home-base of Variation Type in High School)

  • 서붕교;박주영
    • 교육시설
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    • 제16권4호
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    • pp.71-78
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    • 2009
  • After the introduction of the 7th revision of curriculum, educational facilities have been requested to change to face new curriculums and have been planned. But, it is actual condition that researches of curriculum and facilities seem to be insufficient. This research will re-establish in an angle of space-syntax based on existed research for home-base area of variation type in high school according to the 7th curriculum. And the each specific character of home-base area representing each type and strong / weak points of area structure of each home-base will be analyzed. And analysis result with the model of variation type in high school visit the on-the-spot inspection result which leads and comparison and with his interview back it leads and currently there is the objective to the evaluation the variation type in high school home-base which is planned regarding the suitable in real use. Each case to the school I visited the scene, not all high schools applied the 7th curriculum courses. Therefore, it is also home-base space capabilities were not being properly utilize. According to 7th curriculum, one of Hall-type home-base and Room-type home-base can be suitable when integration is higher. However, the way the current operational training, it is the best that Distributed-type home-base needs to be included in each curriculum block.

Approximate Equivalent-Circuit Modeling and Analysis of Type-II Resonant Immittance Converters

  • Borage, Mangesh;Nagesh, K.V.;Bhatia, M.S.;Tiwari, Sunil
    • Journal of Power Electronics
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    • 제12권2호
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    • pp.317-325
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    • 2012
  • Resonant immittance converter (RIC) topologies can transform a current source into a voltage source (Type-I RICs) and vice versa (Type-II RICs), thereby making them suitable for many power electronics applications. RICs are operated at a fixed frequency where the resonant immittance network (RIN) exhibits immittance conversion characteristics. It is observed that the low-frequency response of Type-II RINs is relatively flat and that the state variables associated with Type-II RINs affect the response only at the high frequencies in the vicinity of the switching frequency. The overall response of a Type-II RIC is thus dominated by the filter response, which is particularly important for the controller design. Therefore, an approximate equivalent circuit model and a small-signal model of Type-II RICs are proposed in this paper, neglecting the high-frequency response of Type-II RINs. While the proposed models greatly simplify and speed-up the analysis, it adequately predicts the open-loop transient and small-signal ac behavior of Type-II RICs. The validity of the proposed models is confirmed by comparisons of their results with those obtained from a cycle-by-cycle simulation and with an experimental prototype.

타의 종류에 따른 컨테이너선의 조종성능 특성 연구 (Experimental Study on the Variation of Maneuvering Characteristics of Container Ship with Rudder Type)

  • 김연규;김선영;김성표;이석원
    • 대한조선학회논문집
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    • 제41권5호
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    • pp.28-33
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    • 2004
  • Generally Horn-type rudders have been used for single propeller and single rudder system. The reason is that the rudder torques of Horn-type rudder are smaller than those of Spade rudder with same lift force. But it is found that the rudder cavitation occurs on a Horn-type rudder of fast container ship. In this paper the comparison results of Horn-type and Spade rudders are described. HPMM tests are carried out to compare the effects of two rudder types on the maneuverability of a ship. It is shown that the maneuvering performance of a ship equipped with Horn-type rudder is better than that equipped with Spade rudder by comparing the test results and maneuvering coefficients at scantling condition. The reason is that the movable part area of Horn-type rudder is about 14% larger than that of Spade rudder with same total area. And the rudder torque of Spade rudder is greater than that of Horn rudder. At ballast condition, however, the effect of rudder type is negligible.

동의보감 정문과 기문의 경혈 선택에 대한 형상론적인 연구 (Study on 'Hyung-Sang' Theory of Acupuncture Points in Each Chapter on 'Jung' and 'Ki' in Dong-Eui-Bo-Gam)

  • 김경철;박용환
    • 동의생리병리학회지
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    • 제19권4호
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    • pp.872-877
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    • 2005
  • First, we analyze the contents of Dong-Eui-Bo-Gam. Second, from the view of the 'Hyung-Sang(형상:body form)' theory, we try to interpret the acupuncture points chosen in each chapter with a base on the contents of the book. We study on the on 'Hyung-Sang(형상: body form)' thee of acupuncture points in each chapter on 'Jung(정)' and 'Ki(기)' in Dong-Eui-Bo-Gam(동의보감). The acupuncture points on epilepsy in 'Jung(정)' chapter are come from the purview of 'Jung(정)' type, man and 'Shin(신)' type. In the cade of hypochondria, it is often considered 'Ki(기)' pe and 'Shin(신)' type. The acupuncture points on all kind of Ki(기)-desease are come from the purview of the point of 'Ki-Hae(기해)'. The acupuncture points on congestion of the head are come from the purview of indigestible type or weak type of person and woman, and the acupuncture points on 'belch 'are come form the purview of 'KE(기)' type and 'Shin(신)' type. The acupuncture points on polypnea are come from the purview of having phlegm, weak type, and long necked type.

사이즈 코리아 인체 측정 자료에 근거한 30~40대 플러스 사이즈 남성의 체형 특성 및 체형 (Body-shape characteristics and body types of plus-size men in their 30s and 40s based on Korean anthropometric data)

  • 이하나
    • 복식문화연구
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    • 제28권5호
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    • pp.639-651
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    • 2020
  • This study utilized data to classify and characterize the body types of plus-size adult men aged in their 30s and 40s. Diversity is an important factor in the era of inclusive design, and discussion about size diversity to include the plus size should be accommodated. Data from 493 adult men classified as obese (with a World Health Organization criterion ≥25 BMI) were used for the analysis. The results of the study are as follows. Six independent factors were extracted using factor analysis for cluster analysis, which were then classified into five types. Type 1 (29.01%) was identified as body type I with the smallest degree of obesity. Type 2 (15.4%) was identified as body type Y with wide shoulders and a thin waist. Type 3 (14.2%) was the largest body volume (body type O), while the fourth (19.27%) identified as body type H has a large height and upper body. Lastly, type 5 (22.11%) has a long lower body and a slim abdomen, referred to as body type X. This study presents a basis for the development of various clothing sizes utilizing the body shape characteristics of plus-size men in their 30s and 40s. Follow-up research is needed to develop patterns for plus size men and to design various products.

틱톡(Tik Tok) 이용자의 연애유형이 연애 동영상의 이용 동기, 이용 만족도에 미치는 영향 (The Effect of Tik Tok Users' Love Types on Love Videos' Motivation and User Satisfaction)

  • 조맹;양천;이상훈
    • 한국멀티미디어학회논문지
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    • 제25권5호
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    • pp.703-720
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    • 2022
  • Based on the love styles theory used in psychology, this paper classifies users(Passionate Love, Game-playing Love, Friendship Love, Practical Love, Possessive Love, Altruistic Love) and investigates satisfaction with the motivation for using TikTok love videos(Entertainment, Social Relationship, Love skills-learning, Self-verification, Problem-solving) according to the theory of use and satisfaction. First, 414 users were selected to conduct TikTok surveys to collect data. Then, through the analysis of the research results, among the six love types, game-playing type and possessive type have a positive (+) impact on entertainment motivation and love skill-learning motivation. Game-playing type also have a positive (+) impact on social relationship motivation and self-verification motivation. In addition, altruistic type and possessive type are also factors to strengthen the motivation of self-verification. The altruistic type, possessive type and practical type will improve the problem-solving motivation. Finally, through hierarchial multiple regression analysis, it is confirmed that game-playing love type, entertainment motivation, love skill-learning motivation and self-verification motivation can improve user satisfaction. The above results enrich the research of user classification as well as providing inspiration for improving the quality and communication efficiency of TikTok's video and enhancing user experience.

Evaluation of Monkman-Grant Parameters for Type 316LN and Modified 9Cr-Mo Stainless Steels

  • Kim, Woo-Gon;Kim, Sung-Ho;Ryu, Woo-Seog
    • Journal of Mechanical Science and Technology
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    • 제16권11호
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    • pp.1420-1427
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    • 2002
  • The Monkman-Grant (M-G) and its modified parameters were evaluated for type 316LN and modified 9Cr-Mo stainless steels prepared with minor element variations. Several sets of creep data for the two alloy systems were obtained by constant-load creep tests in 550~650$\^{C}$ temperature range. The M-G parameters, m, m', C, and C' were proposed and discussed for the two alloy systems. The m value of the M-C relation was 0.90 in type 316LN steel and 0.84 in modified 9Cr-Mo steel. The m' value of the modified relation was 0.94 in type 316LN steel and 0.89 in 9Cr-Mo steel. Although creep fracture modes and creep properties between type 316LN and modified 9Cr-Mo steels showed a basic difference, the M-G and its modified relations demonstrated linearity quite well. The m' of modified relation almost overlapped regardless of the creep testing conditions and chemical variations in the two alloy systems, and the parameter m' was closer to unity than that of the M-G relation.

임무유형 기반 전역경로계획을 위한 가중치 결정방법 (A Method to Determine the Weights for Mission Type based Global Path Planning)

  • 박원익;이호주;김도종
    • 한국군사과학기술학회지
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    • 제17권6호
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    • pp.711-717
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    • 2014
  • Global path planning for autonomous driving of unmanned ground vehicle is essential. When setting global path planning, its accuracy and effectiveness is increased if useful information such as terrain type of driving route has been reflected on global path planning. As a method to reflect the terrain type, there is a method to perform global path planning by applying the weight to each terrain type. At this time, how to assign appropriate weights corresponding to the terrain type is more important than anything. In this paper, we proposed a method to determine the weight for terrain type that may affect the results of global path planning. Moreover, we presented effective operation method and design results(GUI) to check the possibility of the use of the proposed method.