• Title/Summary/Keyword: Co-creation

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A Theoretical Study on the Coevolution Strategy of University Innovation Ecosystems (대학 혁신생태계의 공진화 전략에 대한 이론적 고찰)

  • Park, Sang-Kyu
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.12
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    • pp.268-277
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    • 2020
  • This study emphasizes that the survival strategy of universities should be a co-evolution strategy based on ecological thinking. Therefore, the purpose of the research is to present a theoretical framework for dividing the university innovation ecosystem into four stages and building a co-evolution strategy for each step, as universities play a prominent role in regional innovation ecosystems. Thus, our research method focused on literature research, and the theoretical framework for the university innovation ecosystem used Moore's Enterprise Ecosystem Model (1996). The university's ecological innovation strategy is divided into four stages of development, and a step-by-step co-evolution strategy is presented. Findings are summarized as follows. The pioneering stage involves the creation of values of the university-led innovation ecosystem. The expansion stage focuses on the establishment of critical mass. The authority stage covers maintaining authority and bargaining power. The renewal stage features continuous performance improvement. In particular, this theoretical model of the university-regional innovation ecosystem is meaningful in that it provides a theoretical basis for enhancing the effectiveness of government financial support projects, and for individual universities, it provides a framework for strategies suitable for their ecosystem building process.

Optimal Design of Stator Shape for Cogging Torque Reduction of Single-phase BLDC Motor (단상 BLDC 전동기의 코깅토크 저감을 위한 고정자 형상 최적설계)

  • Park, Young-Un;So, Ji-Young;Chung, Dong-Hwa;Yoo, Yong-Min;Cho, Ju-Hee;Ahn, Kang-Soon;Kim, Dae-Kyong
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.62 no.11
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    • pp.1528-1534
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    • 2013
  • This paper proposes the optimal design of stator shape for cogging torque reduction of single-phase brushless DC (BLDC) motor with asymmetric notch. This method applied size and position of asymmetric notches to tapered teeth of stator for single-phase BLDC motor. Which affects the variation of the residual flux density of the permanent magnet. The process of optimal design included the extraction of the sampling point by using Latin Hypercube Sampling(LHS), and involved the creation of an approximation model by using kriging method. Also, the optimum point of the design variables were discovered by using the Genetic Algorithm(GA). Finite element analysis was used to calculate the characteristics analysis and cogging torque. As a result of finite element analysis, cogging torque were reduced approximately 39.2% lower than initial model. Also experimental result were approximately 38.5% lower than initial model. The period and magnitude of the cogging torque were similar to the results of FEA.

Evaluation of Residual Stress using IITC of Experimental Stress Analysis on Concrete Structure (실험적 응력해석의 IITC 방식에 의한 콘크리트 구조물 잔류응력 평가)

  • Lee, Ho Beom;Han, Sang Hee;Jang, Il Young
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.34 no.2
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    • pp.415-424
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    • 2014
  • The carrying capacity of existing concrete structures is evaluated by the measured data from displacement and strain gauges for given loads and the results of numerical analysis that are compared with the measured ones. Consequently, this process could be accomplished in doing the direct measurement of residual stress on existing concrete. This study is concerned with the development of IITC (Instrumented Indentation Technique for Concrete) system which is based on the experimental stress analysis technique using non-destructive test method to evaluate the residual stress of concrete structures depending on the types of applied loadings in analysing indentation load - indentation depth curve derived experimentally on concrete surface. As a result, in this paper, almost all of systematized H/W and S/W were newly developed to estimate the residual stresses of concrete structures. Thus, the creation of new experimental equations for deriving residual stresses and automatical calculations of residual stresses using the empirical formula can lead to evaluate the structural resistances conveniently in the structures from construction phase to maintenance stage.

A Study of five elements in 『Hyupgiltongui』 Bonwon chapter one (『협길통의(協吉通義)』 본원일(本原一)의 5행(行)에 관한 연구)

  • Kwon, Yung-soo;Kim, Ki-Seung
    • Industry Promotion Research
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    • v.5 no.3
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    • pp.135-144
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    • 2020
  • Five elements that form all things have been symbolized in that they are indispensable elements in human life. Moreover, each unique energy has been used to explain the existence of all creation and the origin of action. The theory of five elements can be changed and utilized into various forms, including co-existence and conflict of five elements, five elements itself, the combination of Ganji five elements, Wangsanhyususa(旺相休囚死), five elements and Yin-yang. Especially, 『Hyupgiltongui Bonwon chapter one covers five elements, five elements of Ganji, seasonal use of five elements, prosperity and decline of five elements depending on seasons, Union of 3 elements among Twelve Zodiac Signs(三合), Union of two elements among Twelve Zodiac Signs(六合), changes of Cheongan 5hab. Therefore, if you analyze and utilize them, you can tell someone's fortune by theory of five elements only and read fortune in detail by combining it with other theories.

Identification of a Novel Single Nucleotide Polymorphism in Porcine Beta-Defensin-1 Gene

  • Pruthviraj, D.R.;Usha, A.P.;Venkatachalapathy, R.T.
    • Asian-Australasian Journal of Animal Sciences
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    • v.29 no.3
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    • pp.315-320
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    • 2016
  • Porcine beta-defensin-1 (PBD-1) gene plays an important role in the innate immunity of pigs. The peptide encoded by this gene is an antimicrobial peptide that has direct activity against a wide range of microbes. This peptide is involved in the co-creation of an antimicrobial barrier in the oral cavity of pigs. The objective of the present study was to detect polymorphisms, if any, in exon-1 and exon-2 regions of PBD-1 gene in Large White Yorkshire (LWY) and native Ankamali pigs of Kerala, India. Blood samples were collected from 100 pigs and genomic DNA was isolated using phenol chloroform method. The quantity of DNA was assessed in a spectrophotometer and quality by gel electrophoresis. Exon-1 and exon-2 regions of PBD-1 gene were amplified by polymerase chain reaction (PCR) and the products were subjected to single strand conformation polymorphism (SSCP) analysis. Subsequent silver staining of the polyacrylamide gels revealed three unique SSCP banding patterns in each of the two exons. The presence of single nucleotide polymorphisms (SNPs) was confirmed by nucleotide sequencing of the PCR products. A novel SNP was found in the 5'-UTR region of exon-1 and a SNP was detected in the mature peptide coding region of exon-2. In exon-1, the pooled population frequencies of GG, GT, and TT genotypes were 0.67, 0.30, and 0.03, respectively. GG genotype was predominant in both the breeds whereas TT genotype was not detected in LWY breed. Similarly, in exon-2, the pooled population frequencies of AA, AG, and GG genotypes were 0.50, 0.27, and 0.23, respectively. AA genotype was predominant in LWY pigs whereas GG genotype was predominant in native pigs. These results suggest that there exists a considerable genetic variation at PBD-1 locus and further association studies may help in development of a PCR based genotyping test to select pigs with better immunity.

A Monistic Design Thought and Method (전일적 디자인사고와 디자인방법에 대한 연구)

  • 이순종
    • Archives of design research
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    • v.17 no.2
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    • pp.479-486
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    • 2004
  • We need to seek after new direction and order of design that puts more value on the spirits and culture of human beings in the 21st century, creating a new, all-inclusive value in which individual human being, the society and the environment can co-exist in a peaceful relationship by overcoming the materialistic, analytical, competitive, and differentiated values of traditional industrial society. The aim of this study, then, is to present a new method of design that can meet the demands of the 21st century in a civic age of information, knowledge and culture, by focusing on Monistic ideals derived from a deeply rooted Oriental philosophy. The concept of Monism is embodied by a mind set that treasures the benefit to others over rewards to the self, puts more importance on the spiritual life hidden behind physical phenomena, thinks more of what lacks than what exceeds, elevates the mind over the body, and seeks after beauty via a total harmony of balance and development that can be feasible only by combining all these elements. Ultimately, the new design principle based on the Monism consists of three basic elements: (1) identification of the subject and the object between things under the perception that all things are one (Unification); (2) the ability that helps things exist with appropriate beauty maintaining balance and stability (Harmony); and (3) the attitude of sharing to maintain sustainable vitality by filling up what lacks or is missing in a whole(Change).

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Service for Bicycle Use Information Based on Low Carbon Green Growth (저탄소 녹색성장 기반의 자전거 이용정보 서비스)

  • Kim, Eui-Myoung
    • Journal of Korean Society for Geospatial Information Science
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    • v.18 no.3
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    • pp.75-81
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    • 2010
  • Existing studies on the bicycle road were mostly for the promotion of bicycle road through the creation of bicycle road. However, as the gradually increase of bicycle users, it has been required service based on low carbon green growth in order to promote the use of bicycles which are green means of transportation. Analysis of existing bicycle use information is mainly based on calculating the amount of exercise, so the diverse needs of bicycle user does not accommodated. Therefore, in this study, it is proposed that methodology compute to reduce cost or amount of carbon dioxide, fuel, and processing costs of global warming by using bicycle. For this, a program is implemented to display bicycle use information provided in the form of GPX based on Google Earth in three-dimensional environment and to service based on low carbon, green growth. The developed program is compared with existing commercial software. Through this study, new services have been developed to carry out low carbon and green growth in terms of bicycle users, and it is considered that the services can be applied to devices such as smart phones.

Pectin from Passion Fruit Fiber and Its Modification by Pectinmethylesterase

  • Contreras-Esquivel, Juan Carlos;Aguilar, Cristobal N.;Montanez, Julio C.;Brandelli, Adriano;Espinoza-Perez, Judith D.;Renard, Catherine M.G.C.
    • Preventive Nutrition and Food Science
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    • v.15 no.1
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    • pp.57-66
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    • 2010
  • Passion fruit fiber pectin gels represent a new alternative pectin source with potential for food and non-food applications on a commercial scale. Pectic polysaccharides were extracted from passion fruit (Passiflora edulis) fiber using citric acid as a clean catalyst and autoclaved for 20 to 60 min at $121^{\circ}C$. The best condition of pectin yield with the highest molecular weight was obtained with 1.0% of citric acid (250 mg/g dry passion fruit fiber pectin) for 20 min of autoclaving. Spectroscopic analyses by Fourier transform infrared, enzymatic degradation reactions, and ion-exchange chromatography assays showed that passion fruit pectin extracted for 20 min was homogeneous high methoxylated pectin (70%). Gel permeation analysis confirmed that the pectin extract obtained by autoclaving by 20 min showed higher molecular weights than those autoclaved for 40 and 60 min. Passion fruit pectin extracted for 20 min was enzymatically modified with fungal pectinmethylesterase to create restructured gels. Short autoclave treatment (20 min) with citric acid as extractant resulted in a significant increase of gel strength, improving pectin extraction in terms of functionality. The treatment of solubilized material (pectic polysaccharides) in the presence of insoluble material (cellulose and hemicellulose) with pectinmethylesterase and calcium led to the creation of a stiffer passion fruit fiber pectin gel, while syneresis was not observed.

A Study on the G7 Calibration Application in Gravure Printing (그라비어 인쇄에서의 G7 Calibration 적용에 관한 연구)

  • Jang, Yeong-Yeop;Oh, Sung-Sang;Cho, Ga-Ram;Lee, Jae-Soo
    • Journal of the Korean Graphic Arts Communication Society
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    • v.31 no.1
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    • pp.65-78
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    • 2013
  • In gravure printing ink in printed flexible packaging considering the characteristics of the study more accurate color management options and results were as follows. When applying G7 calibration, P2P of the target GRACol G7 evaluate the delta $L^*$ and delta $F^*$, CMY and K-scale average of the results of delta $L^*$ and the highest tolerance G7 average of 1.5 and 3.0 are included in all the best. In addition, the average delta $F^*$ and super delta $F^*$, G7 tolerance by being included within the scope of color management, G7 calibration was possible. Target IT 8.7/4 CMYK, when applied to the calibration G7, Color gravure printing machine is applied to the average of the previous decreased from 12.4 to 3.6. In addition, if a digital proof is EPSON WT 7900 the average color applied to the previous reduction from 5.24 to 0.74 because of the gravure printing color proofing system was effective in the management. G7 calibration by applying the reference print profile of the Epson WT 7900-G-icc, the average was 0.74 coloration, and gravure-G-icc cases, the average color of the 3.60 per GRACol average of all the five colors below were included within the allowable range. Thus, the flexible packaging gravure printing color management of printed after applying the first G7 calibration, the results refer to the press by the profiling, and where best to take advantage of the profile creation was good.

A New Model for Codes of Ethics for Librarians of South Korea (한국의 사서직 윤리규정 방향 제안)

  • Kim, Hae-Kyoung;Nam, Tae-Woo
    • Journal of the Korean Society for information Management
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    • v.21 no.4 s.54
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    • pp.329-352
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    • 2004
  • In this knowledge-based society of this age, librarianship takes a professional position and requires essential principles of ethics that has to be observed. Therefore, library associations and professional communities all over the world have released criteria and code of ethics to make their professional positions to keep. This research investigated and analyzed the codes of ethics for librarians in United States, Great Britain, Japan, and South Korea which are based on the mission of each library of each country. Based on these analysis and comparison, this research proposed more advanced codes of ethics for South Korea. The proposed model of codes of ethics consists of two parts: ethics for information and ethics for professional positions. The ethics for information contains six essential elements: equal access and services for information, denial of inspection, protection of privacy, neutralization of librarian, and security of intellectual freedom. The ethics for professional positions consists of 8 essential aspects: exclusion of personal benefit, continuous efforts for developing knowledge, keep the professional position, conflicts between professional task and organization, relationship with co-workers, ensure the conditions of rights and welfare for employees, cooperations among libraries, and contribution for creation of new culture.