• Title/Summary/Keyword: interaction element

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Patenting Dilemma for Startups: Number of Applied Patents, Patent Imitability, and Level of VC Funding (스타트업의 특허 딜레마: 특허수, 모방 가능성, 그리고 벤처 캐피털리스트 펀딩 수준)

  • FERAUD, Christophe;Kim, Bongsun;Kim, Enonsoo
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.14 no.3
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    • pp.169-183
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    • 2019
  • Should a startup file for a patent subject to imitation in its quest to attract venture capital(VC) investors? Considering the US pharmaceutical biotechnology industry context, this paper attempts to answer this question by investigating the relations between the number of applied patents of startups, patent imitability, and the total amount of money the startups received as their first VC funding round. Data of 157 US-based pharmaceutical biotechnology startups founded in between 1995 and 2005 are analyzed. Empirical results from this study show that the number of applied patents is positively related to the total amount of money received at the time of the first funding round, and patent imitability is negatively related to the total amount of money received as first VC funding round. Nonetheless, the interaction term between the number of applied patents of startups and patent imitability came out as positive, raising interesting questions and implications for innovation-oriented startup entrepreneurs. The current study's empirical findings suggest that, in the pharmaceutical biotechnology sector, VC investors pay attention to the quantity and quality of the patents possessed by startups when they decide the level of funding. In particular, imitability of applied patents may not be a one-sided concept related to negative features such as the weak protectability of an invention. Rather, patent imitability may be a multi-facet element which also contains positive attractiveness of the startup's invention. Furthermore, it seems that the positive side of imitability can be augmented by the number of applied patents.

Estimation of Permanent Displacement of Gravity Quay Wall Considering Failure Surface under Seismic Loading (지진 시 파괴면을 고려한 중력식 안벽의 영구변위 평가)

  • Han, Insuk;Ahn, Jae-Kwang;Park, Duhee;Kwon, Osoon
    • Journal of the Korean Geotechnical Society
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    • v.35 no.4
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    • pp.15-26
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    • 2019
  • The stability of the gravity quay wall against earthquakes is evaluated on the basis of the allowable displacement of the wall. To estimate the displacement caused by external forces, empirical equations based on the Newmark sliding block method or numerical analysis are widely used. In numerical analysis, it is possible to analyze precisely a complicated site and structure, but difficult to set the appropriate parameters and environments; there are limitations in obtaining reliable results, depending on one's level of expertise. The Newmark method, with only seismic motions, is widely used because it is simpler than numerical simulations when estimating permanent displacement. However, the empirical equations do not have any parameters for the response characteristics and sliding block of the structure, and sliding blocks being assumed as rigid bodies does not consider the nonlinear behavior of the soil and interaction with the structure. Therefore, in order to evaluate the seismic stability of the gravity quay wall, a newly-developed empirical equation is needed to overcome the above-mentioned limitations. In this study, numerical simulations are performed to analyze the response characteristics of the backfill of the structure, and to propose an optimal method of calculating the active area. For this purpose, finite element analyses were performed to analyze the response characteristics, and stress-strain relationships for various seismic motions. As a result, the response characteristics, sliding block, and failure surface of the backfill vary depending on the input seismic motions.

A Historical Approach to the Development of Democracy and the Archival Society in Korea (한국 기록관리와 '거버넌스'에 대한 역사적 접근)

  • OH, Hang-Nyeong
    • The Korean Journal of Archival Studies
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    • no.11
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    • pp.15-40
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    • 2005
  • 'Governance' is a subject that is widely discussed these days in the government and the academic world. I think that the new concept, 'governance', is a strategy to develop the democracy of the society in its institutional and functional aspects. When we are going to discuss about governance, public records and their relationships, without understanding the meaning of 'public' in Korea, we cannot expect to discuss the matter precisely. It is said that Korean public service sectors are awash with authoritarianism and unreasonableness, and that they are at the center of seething corruption and bribe scandals. It is the legacy that the regimes adopted in the aftermath of the Japanese colonial rule for 35 years. The colonial legacy included not simply the practice of the Japanese colony, but also people who had collaborated the Japanese. The American military government and Rhee, Sung-Man regime also appointed the same officials to government posts. As was the same case in other areas including economy, press, education, politics, law, etc. In this point of view, "Righting historical wrongs", a controversial issue now in Korea, aims at establishing the right relationships between an individual and the public, and eventually laying the foundation of democracy for future generation, a procedure of achieving good governance. Apparently, Korea has made progress in developing democracy, as well as in reforming the government policy and organization. Many independent commissions are performing the projects instead of the government institutions that mandated to do the job, but has not played their roles. The e-government projects in Korea was launched in 2001 by the former administration. However, the confusion of records-management after the promulgation of the act is the result of the lack of strategy and the inconsistency of the vision. Good record-keeping supports effective, transparent and accountable government. Accountability is a key element of good governance. It is a recognized fact that without information, there is no guidance for decision-making, and accountability. Thus without records, there is no accountability for the decisions of actions. Transparency means that the decisions taken and their enforcement are carried out based on led-out rules and regulations. When both accountability and transparency are non-existent, good governance is bound to fail. Archival institutions have to give an attention to inner-governance because of the new trend of archival practice, namely 'macro-appraisal'. This 'macro-appraisal' is a kind of a functions-based approach. However, macro-appraisal focuses not just on function, but on the three-way interaction of function, structure and citizen, which combined reflect the functioning of the state within civil society, that is to say, its governance. In conclusion, the public and democracy are major challenges in the Korean society. The so-called good governance requires good record management. In this respect, records managers are in the front line of instituting good governance, and achieving better public and democracy for future generation, a procedure of achieving good governance.

An effects of Distributed leadership on Teacher efficacy and Teaching commitment in middle school teacher (중학교 교사의 분산적 리더십이 교사효능감과 교직헌신도에 미치는 영향)

  • Park, Jin-Hee;Yu, Pyeong-Su
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.7
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    • pp.467-473
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    • 2019
  • The purpose of this study is to present the scale of the overall influence by way of investigating how much any sub - elements of middle school teachers' distributed leadership influences any sub - elements of teacher efficacy and teaching commitment. First, there was no statistically significant difference in perceived level on distributed leadership according to the background variables of middle school teachers, but on average, it was shown to be high in female teachers, common teachers, over 21-year-career teachers and private school teachers. Second, there was a statistically positive correlation between distributed leadership and teacher efficacy or teaching commitment. Teacher efficacy showed a higher positive correlation than teaching commitment. Third, the study statistically showed that distributed leadership overall has influence on teacher efficacy and teaching commitment(41%). In conclusion, the study revealed a meaningful positive correlation between sub - elements of distributed leadership and sub - elements of teacher efficacy or teaching commitment, specially self-regulating efficacy, confidence of sub-elements of teacher efficacy, and school love of sub - elements of teaching commitment were positively explained according to the sub - elements of middle school teachers' distributed leadership. The explanatory power of the sub-elements of the distributed leadership on the teacher efficacy and the teaching commitment was 27% in the school situation, 28% in the leadership of the school principal, 28% in the leadership of the teacher, and 28% in the teacher interaction.

The Planning Characteristics of Private External Space in Multi-family Housing - focusing on the Balconies, Loggias and Terraces as intermediate spaces in European Cases - (공동주택 사적 외부공간의 계획적 특성 - 유럽 사례에서 매개공간으로서의 발코니, 로지아, 테라스를 중심으로 -)

  • Kim, Hyun-Ju
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.36 no.2
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    • pp.13-24
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    • 2020
  • This study derives the characteristics of the private external space planning in multi-family housing through the analysis of the good case built after 2000 in Europe. First, the cases were categorized into block or block perimeter, linear and point type to examine the relationship between the type of building in urban context and the location of private external space. By block or block perimeter and linear type, private external spaces are planned in the inner courtyards or open space between buildings used as common space for residents, inducing communications between neighbors. And the direction of private external space depends on the arrangement of the building mass in urban context. In the classification as point type, there are many cases, where private external spaces are arranged in all directions, connected almost all interior spaces. Second, based on the above results, the planned characteristics of the private external space are derived by dividing it into three categories: intermediated space between inside and outside, intermediate space between private and public /individual and collective space and the identity of the intermediate space. (1) In most cases, direction, size of enclosed area and location of private extern space is designed to fit the surrounding context, so residents can perceive as much of the assets of the surrounding environment as possible, and it can be used as an extended area of living space. In another cases, it is divided into various sub-areas to experience the spatial transition from inside to outside or vice versa. 2) The private external space, which is placed in a courtyard or in a collective open space, is partially enclosed and blocked, allowing interaction with the neighbors without pressure. Along the street, they are designed to allow residents to experience the vitality of the city and to be formative element of the facade, which could confidently reveal the lifestyle and taste of residents. 3) By some of point types, which facade is three-demensional layer as a habitable external space, the private external space is very flexible for use. This intermediate space is composed of diverse spaces for various needs, or it has generous size with positional conditions connected with all interior spaces to be used multi-functional.

An Imagination for Future of Education: Based on Vygotsky's Theory and Emotional Relation (미래교육을 위한 상상력: Vygotsky의 이론 및 정서와의 관계를 중심으로)

  • Bak, jiwon;Kim, Hoy-Yong
    • (The)Korea Educational Review
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    • v.23 no.2
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    • pp.31-53
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    • 2017
  • Drawing upon Vygotsky's theory, this paper explores the possibilities of imaginative education and those implications in relation to emotions. Imagination is an important element of future competencies as well as creativity. But there is a big dilemma in an educational intervention about imagination. If imagination is naturally occurring and therefore considered a mysterious ability that is specific to a child, education should not intervent as much as possible so that it can be expressed and preserved. It is linked to Piaget's influence, which regards imagination as a mental immaturity of childhood. Vygotsky who is a developmental psychologist argues that mind is generated from the socio-cultural origins in opposition to Piaget's spontaneous generation and emphasizes that it is a core characteristic of human to create something through interaction with the world. Vygotsky consider that 'imagination' which synthesizes empirical material and creates a new image is a key factor in human creativity. He reminded us of the possibilities and importance of imaginative education by revealing that imagination is not limited to childhood but constantly develops through cultural experience. Especially Vygotsky's understanding has important implications for future education in relation to emotion. Imagination plays a role of expressing and dealing with human emotions. Unlike the reason-centered society in the past, future society demands a big role of imagination in education for dealing with emotional knowledge and morality.

A Comparative Study on New Words of Korean and Chinese According to Changes in Popular Culture Contents (대중문화 콘텐츠 변화에 따른 한중 신조어 비교 연구)

  • Meng, Xiang-Shan;Lee, Kwang-Ho
    • Journal of Korea Entertainment Industry Association
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    • v.14 no.6
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    • pp.125-137
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    • 2020
  • The purpose of this study is to analyze new words in Korean and Chinese based on changes in popular culture. As China and Korea embrace increasingly close communication in recent years, their languages have influenced each other. A lot of new Korean and Chinese words have been discovered to have the same linguistic characteristics. New words are considered as new developments of a language. They are welcomed and widely used by young people in Korea and China. Therefore, in terms of the communicative function of languages, it is worthwhile to understand new words in Korean and Chinese from the perspective of academic research. This study takes Chinese words created in 2018 as the research object. Firstly, a morphological and semantic comparison of Chinese words created in 2018 and those created in 2017 is carried out to extract the characteristic indicators of Chinese words created in 2018, with emphasis on compound words, abbreviations, substitutions, patters and rhetorical expressions. Secondly, the similarities and differences of these Chinese words with Korean words created in 2018 in terms of morphology are analyzed. Finally, after conducting sample classification and comparison, the characteristics of new Chinese and Korean words and the interaction mechanism under mutual influence are concluded. According to the study, the majority of the new words are created on the basis of existing words. Thus, it is important to explore the morphology of new words as a standard language.

Multi-fidelity uncertainty quantification of high Reynolds number turbulent flow around a rectangular 5:1 Cylinder

  • Sakuma, Mayu;Pepper, Nick;Warnakulasuriya, Suneth;Montomoli, Francesco;Wuch-ner, Roland;Bletzinger, Kai-Uwe
    • Wind and Structures
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    • v.34 no.1
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    • pp.127-136
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    • 2022
  • In this work a multi-fidelity non-intrusive polynomial chaos (MF-NIPC) has been applied to a structural wind engineering problem in architectural design for the first time. In architectural design it is important to design structures that are safe in a range of wind directions and speeds. For this reason, the computational models used to design buildings and bridges must account for the uncertainties associated with the interaction between the structure and wind. In order to use the numerical simulations for the design, the numerical models must be validated by experi-mental data, and uncertainties contained in the experiments should also be taken into account. Uncertainty Quantifi-cation has been increasingly used for CFD simulations to consider such uncertainties. Typically, CFD simulations are computationally expensive, motivating the increased interest in multi-fidelity methods due to their ability to lev-erage limited data sets of high-fidelity data with evaluations of more computationally inexpensive models. Previous-ly, the multi-fidelity framework has been applied to CFD simulations for the purposes of optimization, rather than for the statistical assessment of candidate design. In this paper MF-NIPC method is applied to flow around a rectan-gular 5:1 cylinder, which has been thoroughly investigated for architectural design. The purpose of UQ is validation of numerical simulation results with experimental data, therefore the radius of curvature of the rectangular cylinder corners and the angle of attack are considered to be random variables, which are known to contain uncertainties when wind tunnel tests are carried out. Computational Fluid Dynamics (CFD) simulations are solved by a solver that employs the Finite Element Method (FEM) for two turbulence modeling approaches of the incompressible Navier-Stokes equations: Unsteady Reynolds Averaged Navier Stokes (URANS) and the Large Eddy simulation (LES). The results of the uncertainty analysis with CFD are compared to experimental data in terms of time-averaged pressure coefficients and bulk parameters. In addition, the accuracy and efficiency of the multi-fidelity framework is demonstrated through a comparison with the results of the high-fidelity model.

Dynamic Load Allowance of Highway Bridges by Numerical Dynamic Analysis for LRFD Calibration (LRFD 보정을 위한 동적해석에 의한 도로교의 동적하중허용계수)

  • Chung, Tae Ju;Shin, Dong-Ku;Park, Young-Suk
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.28 no.3A
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    • pp.305-313
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    • 2008
  • A reliability based calibration of dynamic load allowance (DLA) of highway bridge is performed by numerical dynamic analysis of various types of bridges taking into account of the road surface roughness and bridge-vehicle interaction. A total of 10 simply supported bridges with three girder types in the form of prestressed concrete girder, steel plate girder, and steel box girder is analyzed. The cross sections recommended in "The Standardized Design of Highway Bridge Superstructure" by the Korean Ministry of Construction are used for the prestressed concrete girder bridges and steel plate girder bridges while the box girder bridges are designed by the LRFD method. Ten sets of road surface roughness for each bridge are generated from power spectral density (PSD) function by assuming the roadway as "Average Road". A three dimensionally modeled 5-axle tractor-trailer with its gross weight the same as that of DB-24 design truck is used in the dynamic analysis. For the finite element modeling of superstructure, beam elements for the main girder, shell elements for concrete deck, and rigid links between main girder and concrete deck are used. The statistical mean and coefficient of variation of DLA are obtained from a total of 100 DLA results for 10 different bridges with each having 10 sets of road surface roughness. Applying the DLA statistics obtained, the DLA is finally calibrated in a reliability based LRFD format by using the formula developed in the calibration of OHBDC code.

An Analysis of Cases of Real-time Online Class Design by Pre-service Science Teachers (예비 과학 교사의 실시간 온라인 수업 설계 사례 분석)

  • Hwa-Jung Han
    • Journal of The Korean Association For Science Education
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    • v.43 no.6
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    • pp.563-572
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    • 2023
  • This study aimed to analyze cases of online class design by pre-service science teachers to identify the teaching strategies employed for online classes. For this purpose, the real-time online class lesson plans of 12 pre-service science teachers, who had experienced education utilizing online teaching tools for a semester, were collected and analyzed. The pre-service science teachers considered all the elements that were essential in traditional face-to-face class designs, including prerequisites, statements of learning objectives, stimulating motivation, teaching and learning methods, wrapping up, teacher-student interaction, and assessment. They devised teaching strategies that could overcome the limitations of online teaching and were not feasible in face-to-face classes for each element. Additionally, they were considering new instructional strategies tailored to the online teaching environment, such as creating a conducive environment for using online teaching tools and strategies related to checking the online teaching environment. However, for statements of learning objectives, stimulating motivation, and wrapping up, most of the pre-service science teachers predominantly utilized teaching strategies from traditional face-to-face classes, especially those involving the presentation of visual materials through online tools. Student-centered approaches were rarely implemented in stimulating motivation or wrapping up. These findings imply that one semester of exposure to the utilization of online teaching tools may be insufficient in teacher education. Thus, there is a need for a continuous and expanded educational program on the utilization of online teaching tools as part of pre-service teacher education.