• Title/Summary/Keyword: Convergence approach

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Single nucleotide polymorphism marker combinations for classifying Yeonsan Ogye chicken using a machine learning approach

  • Eunjin, Cho;Sunghyun, Cho;Minjun, Kim;Thisarani Kalhari, Ediriweera;Dongwon, Seo;Seung-Sook, Lee;Jihye, Cha;Daehyeok, Jin;Young-Kuk, Kim;Jun Heon, Lee
    • Journal of Animal Science and Technology
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    • v.64 no.5
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    • pp.830-841
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    • 2022
  • Genetic analysis has great potential as a tool to differentiate between different species and breeds of livestock. In this study, the optimal combinations of single nucleotide polymorphism (SNP) markers for discriminating the Yeonsan Ogye chicken (Gallus gallus domesticus) breed were identified using high-density 600K SNP array data. In 3,904 individuals from 198 chicken breeds, SNP markers specific to the target population were discovered through a case-control genome-wide association study (GWAS) and filtered out based on the linkage disequilibrium blocks. Significant SNP markers were selected by feature selection applying two machine learning algorithms: Random Forest (RF) and AdaBoost (AB). Using a machine learning approach, the 38 (RF) and 43 (AB) optimal SNP marker combinations for the Yeonsan Ogye chicken population demonstrated 100% accuracy. Hence, the GWAS and machine learning models used in this study can be efficiently utilized to identify the optimal combination of markers for discriminating target populations using multiple SNP markers.

Experimental Studies on the Anti-inflammatory Effect of Cannabis sativa based on a Scientometric Analysis

  • Eunsoo Sohn;Sung Hyeok Kim;Sohee Jang;Se-Hui Jung;Kooyeon Lee;Eun-Hwa Sohn
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2021.04a
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    • pp.45-45
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    • 2021
  • This study aimed to explore research on bibliometric features of cannabis by applying scientometric analysis method, and to approach experimental research evaluation based on it. A total of 30,352 articles on cannabis published since 2001 from SCOPUS were analyzed using KnowledgeMatrix Plus and VOSviewer software. Results showed differences in research activities in countries where cannabis is legalized (Canada, the United States, the Netherlands) and Asian countries where its use is illegal. Related to medical cannabis, there has been a noticeable increase in the number of studies on pain, epilepsy, seizures and brain diseases such as multiple sclerosis. In the field of basic research, the number of pharmacological studies of cannabis on the cannabinoid type 1 receptor signaling pathway and inflammation and obesity has increased significantly. Subsequent experimental studies have compared the anti-inflammatory effects of four parts of Korean cannabis such as root, stem, leaf, and bark. Consistent with the predicted results of the scientometric analysis, all parts of C. sativa showed inhibitory effects on COX-2, NO/iNOS and TNF-α expression in LPS-stimulated RAW264.7 cells. These attempts provide an experimental research approach based on scientometric assessment.

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A Design on Security Governance Framework for Industry Convergence Environment (산업융합환경을 위한 보안 거버넌스 프레임워크 설계)

  • Lee, Hyojik;Na, Onechul;Sung, Soyoung;Chang, Hangbae
    • Journal of the Korea Convergence Society
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    • v.6 no.4
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    • pp.33-40
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    • 2015
  • According to arriving convergence environment which can create new value-added converged between industry and ICT technology, It has made economic growth and improve the quality of life. However this convergence environment provide not only advantage but also various security problems resulting from generating converged security threats. For resolving this security problem, we need to approach to security problem in the integrated view not the fragmentary view which cover only technical approach. So This study developed security governance framework which can manage trustful security governance in multidimensional view which cover strategy, managerial/operational and technical view. Therefore this framework can construct trustful security management system which can help top management team to engage in security management directly and organizational member to perform security activities and have responsibility for themselves as suggesting single standard for security management.

A Study on Advanced RF4CE Key Agreement for Device Convergence Security (디바이스 융합 보안을 위한 향상된 RF4CE 키 교환 기법에 관한 연구)

  • Shon, Tae-Shik;Koo, Bon-Hyun;Han, Kyu-Suk
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.35 no.6B
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    • pp.970-976
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    • 2010
  • Platform convergence originated from the convergence of broadcast and telecommunication is making rapid progress including IT and not-IT fields in order to provide a variety of converged services, S/W eco-system construction, and so on. With the advent of convergence environment, IEEE 802.15.4-based RF4CE technology is rising because of creating momentum for the market using converged connectivity between home and office devices as well as all around located devices. In this paper, we present enhanced RF4CE key seed distribution approach in order to provide efficient connection and control between devices. The proposed approach consists of device mutual authentication, initial vector assignment, and two-phase key seed distribution. Moreover, we make a development real RF4CE test board and its key agreement simulator to verify the proposed approach.

Convergence Approach of Family Therapy and Family Coaching (가족치료와 가족코칭의 융합적 접근)

  • Suh Woo Kyung
    • The Journal of the Convergence on Culture Technology
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    • v.9 no.3
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    • pp.347-358
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    • 2023
  • This study attempted a convergence approach of family therapy and family coaching as the importance of convergence application of counseling and coaching has rapidly spread around the academic and clinical world with one individual client around the world since the 2000s. For this, based on previous domestic and foreign literature studies, coaching techniques that can increase clinical satisfaction and effectiveness by combining with coaching among the main theories of family therapy were presented. This researcher examined whether family therapy can be applied convergently with family coaching, and what benefits are available when the main theories of family therapy are combined with coaching in the clinical field. For this purpose, double binding and communication coaching, pseudo-mutuality and true rapport, marital schism and conflict mediation, differentiation and dissociation were compared and analyzed. Based on this study, it is hoped that a convergence approach of family therapy and family coaching will be attempted in the field of counseling and psychotherapy, and through this, it will contribute to establishing a new clinical treatment model and academic establishment of family coaching.

Sectional Analysis of Sheet Metal Stamping Processes Using Bending Energy Augmented Membrane Element and Continuous Contact Treatment (굽힘 에너지가 보강된 박막 요소와 연속 접촉 처리를 이용한 스탬핑 공정의 단면 해석)

  • 윤정환;김종봉;양동열;유동진;한수식
    • Journal of the Korean Society for Precision Engineering
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    • v.15 no.4
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    • pp.58-67
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    • 1998
  • A sectional analysis of sheet metal forming process with an arbitrary tool shape is proposed in the present work. To improve the numerical convergence in the conventional membrane sectional analysis, the Bending Energy Augmented Membrane (BEAM) elements had been developed. The BEAM elements particularly improve the stability and convergence of the finite element method for the case of deep drawing. In this work, the FERGUBON spline (C$^2$-continuous) was used to fit the deformed mesh to smooth the given curves and calculate the local curvature of the deformed sheet. The fittings of the deformed sheet and tool surface profile ensure the stability and the convergence of the finite element analysis of highly nonlinear stamping processes. A center floor section and front fender section are analyzed to show the accuracy and robustness of the approach. The results obtained by the proposed approach are compared with the available experimental data.

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Takagi-Sugeno Fuzzy Model-based Iterative Learning Control Systems: A Two-dimensional System Theory Approach

  • Chu, Jun-Uk;Lee, Yun-Jung
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.169.3-169
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    • 2001
  • This paper introduces a new approach to analysis of error convergence for a class of iterative learning control systems. First, a nonlinear plant is represented using a Takagi-Sugeno(T-S) fuzzy model. Then each iterative learning controller is designed for each linear plant in the T-S fuzzy model. From the view point of two-dimensional(2-D) system theory, we transform the proposed learning systems to a 2-D error equation, which is also established in the form of T-S fuzzy model. We analysis the error convergence in the sense of induced 2 L -norm, where the effects of disturbances and initial conditions on 2-D error are considered. The iterative learning controller design problem to guarantee the error convergence can be reduced to linear matrix inequality problems. In comparison with others, our learning algorithm ...

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An Exploratory Study on Consumer Behaviors and Media Use in Age of Digital Convergence: Qualitative Approach by Focus Group Interview for Future Consumers (디지털융합 시대의 소비자 행동과 매체 활용에 관한 탐색적 연구 : 미래소비자 대상 표적집단면접법에 의한 정성적 접근)

  • Park, Ki-Ho;Kim, Yeon-Jeong
    • Journal of Information Technology Services
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    • v.9 no.4
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    • pp.135-150
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    • 2010
  • In the age of digital convergence, it is expected that quality of life of human beings can be improved by converged devices and services. Researches concerning change of buying patterns and consumer behaviors in these contexts have to be progressed actively. To investigate future trend of consumer behaviors, we used focus group interview for Qualitative approach in the first step and then conducted questionnaire survey for experts in order to get validity and feasibility of research results. As result of research we suggested eight propositions by FGI for 20s target consumers. Additionally, on the basis of qualitative research, by questionnaire survey for 22 experts two perspectives of positive and negative views In future trends were proposed. Results can give lots of Implications and research motivations to academia, practices and workers in public policies who have interests in change of consumer behaviors, thinking styles, and life style under digital convergent environment.

Category of positive game and approach of design for game designers (게임디자이너를 위한 포지티브게임의 범주와 디자인 접근)

  • Eun, Kwang-Ha;Lee, Dong-Lyeor;Kyung, Byung-Pyo;Ryu, Seuc-Ho;Lee, Wan-Bok
    • Journal of Digital Convergence
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    • v.10 no.11
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    • pp.589-594
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    • 2012
  • In the initial stage, domestic games based online concentrated on game development focusing on income for some genres. However, various contents focusing on smart environment and social network are expanded at present and game materials are developed for more various objects. So, this study intends to examine new category, positive game, from the aspect of game designer for game approach based on various objects. And, game approaching process in the category based on pleasure was organized from the standpoint of designer, for the designer approach in the precedent stage of positive game development. From the aspect of designer, systemicity of game category and design approach are necessary to expand wire-wireless environment and new environment based on the convergence media to interactive contents focusing on games.

Constructing Convergence Knowledge on Velocity with Family Resemblance Approach (가족 유사성 접근법을 적용한 물체의 빠르기 주제의 융합지식 구성 연구)

  • Lee, Sooah;Jhun, Youngseok
    • Journal of Korean Elementary Science Education
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    • v.37 no.2
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    • pp.188-205
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    • 2018
  • For STEM education science teachers usually choose topics which are related to both science and other disciplinary contents. Nevertheless it is not clear for the teachers to adopt what kind of criteria for their choices. Interdisciplinary teaching is not a mixture of science content with another one from different disciplines as resources for the content teaching. Instead the criteria and perspectives for the integration need to be clearly defined. In this study we investigated how to integrate science and other disciplines in terms of interdisciplinary teaching. Family resemblance approach by Wittgenstein, recently revised by Erduran and Dagher, was applied to comparative analysis of science, math, and physical education curriculum documents in Korea. Aim and value, methodological rules and methods, knowledge, and activities in each discipline were compared and analyzed with the view of FRA. Results of the study described alternative criteria of how to find appropriate topics for interdisciplinary teaching.