• Proceedings of the Plant Resources Society of Korea Conference
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• 2019.10a
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• pp.70-70
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• 2019

Hepatic fibrosis is a common chronic liver diseases, characterized by the excessive deposition of extracellular matrix (ECM). Activation of hepatic stellate cells (HSC) is proliferative and fibrogenic and accumulating ECM. Transforming growth factor $(TGF)-{\beta}1$ is a critical mediator of HSC activation and ECM accumulation leading to fibrosis. Tenebrio molitor (TM), known as yellow mealworms, is reported in many countries as the nutritional value of foods. Our study has aims of finding liver function improvement effect of S. cerevisiae fermented Tenebrio molitor (SCTM) in vitro model. SCTM regulates $TGF-{\beta}1$ induced hepatic fibrosis via regulation of the $TGF-{\beta}1/Smad$ signaling. Also, we compared the components increased by yeast fermentation. It is possible to make a useful insect-derived alternative food in the improvement of hepatic liver disease.

• Journal of the Microelectronics and Packaging Society
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• v.13 no.3 s.40
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• pp.1-8
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• 2006

Higher density integration and adoption of new materials in advanced electronic package systems result in severe electrochemical reliability issues in microelectronic packaging due to higher electric field under high temperature and humidity conditions. Under these harsh conditions, metal interconnects respond to applied voltages by electrochemical ionization and conductive filament formation, which leads to short-circuit failure of the electronic package. In this work, in-situ water drop test and evaluation of corrosion characteristics for SnPb solder alloys in D.I. water and NaCl solutions were carried out to understand the fundamental electrochemical migration characteristics and to correlate each other. It was revealed that electrochemical migration behavior of SnPb solder alloys was closely related to the corrosion characteristics, and Pb was primarily ionized in both D.I. water and $Cl^{-}$ solutions. The quality of passive film formed at film surface seems to be critical not only for corrosion resistance but also for ECM resistance of solder alloys.

• Journal of the Korean Data and Information Science Society
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• v.28 no.6
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• pp.1349-1360
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• 2017

This study was conducted to estimate the genetic parameters for common ketosis indicators (${\beta}$-hydroxybutyrate acid, BHBA; milk acetone), feed intake efficiency indicator (energy-corrected milk, ECM), and milk yield (MY) in Korean Holstein. A total of 75,072 monthly test-day records from 14,397 first parity cows were collected, between 2012 and 2016, from Korea animal improvement association enrolled farms. Variance components were estimated using a multiple trait random regression model. The heritability of BHBA and acetone levels ranged from 0.06 to 0.15 at different DIMs. The phenotypic and genetic correlations between BHBA and acetone were between 0.73 and 0.90, and between 0.93 and 0.98, respectively. The phenotypic correlation between BHBA and MY, between acetone and MY, between BHBA and ECM, and between acetone and ECM ranged from -0.18 to -0.05, -0.23 to -0.05, 0 to 0.10, and -0.09 to 0.01, respectively. Genetic correlation estimates between BHBA and MY, between acetone and MY, between BHBA and ECM, and between acetone and ECM also ranged from -0.55 to 0.05, -0.62 to -0.04, -0.10 to 0.11, and -0.20 to 0.00, respectively. We hope that these results would greatly assist in the improvement of ketosis disease in the local Holsteins.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.33 no.4
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• pp.91-99
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• 2005

Flight compatibility certification is performed to substantiate the compatibility between ALQ-X ECM pod and KF-16D/RF-4C aircraft. A certification plan for the ALQ-X flight compatibility is established. Similarity analysis, mass/inertia analysis, structural analysis/test, and ground vibration test/flutter analysis are made to support the safety of MIL-HDBK-1763 Test 250 (Captive compatibility flight profile). Aircraft flew along flight envelope boundary with representative ALQ-X configurations. Handling qualities are evaluated by comparing flight characteristics of the aircraft with and without ALQ-X. Structural integrity and endurance is evaluated using measured flight test data. Results of these flight tests showed that ALQ-X is compatible with KF-16D/RF-4C without altering the flight envelope which has originally been certified for ALQ-88 and ALQ-119 ECM pods. ALQ-X certification program made following technical achievements: Type III certification for foreign designed fighter, flutter analysis program development using GVT results, and utilization of MIL-STD-1553B data bus in flight test.

• The Korean Journal of Franchise Management
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• v.3 no.1
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• pp.1-25
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• 2012

The studies of franchise companies are underway with the development of the franchise industry. Franchisor performance, franchisee performance, and relationship characteristics on performance, financial performance, non-financial performance, including research on the topic or purpose of the franchise performance and related discussions from a variety of perspectives have been proposed. Presented so comprehensive a discussion regarding the existing performance of the franchise and qualitative aspects such as satisfaction, long-term orientation to emphasize the limits. Therefore, this study was conducted by the franchise company's performance than the need to be clearly presented. Propose a quantifiable and quantified to reflect the characteristics of the franchise quantitative performance indicators. Franchise contract management systematically analyze the status of the enterprise contract management(ECM) and proposed contract management, leverage as an indicator for a more quantitative analysis. Contract management leverage is the franchise as an indicator of the merchant and the growth of the contract showing any significant changes in the coming changes in the Franchisee's sales growth target analysis results, notable implications could be found. This study are new methodology for the practical dimensions of performance of franchise companies.

• The Magazine of the IEIE
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• v.15 no.1
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• pp.57-64
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• 1988

이 글에서는 통신 전자전의 ESM과 ECM에 대한 일반적인 내용보다는, 그 중 한 특수 분야로서 전술 및 전략적으로 매우 큰 비중을 차지하고 있는 전파방향 탐지 및 방해기법을 위주로 하여 운용면 보다는 기술적 이론을 보안에 저촉되지 않는 한도내에서 상세히 설명하였다. 전파 방향 탐지 기법에 대해서는 주요 기법들의 분류 및 설명, 장비 구성방법을 비롯하여 이를 운용하며 방위각을 구하고 자동망에 의하여 위치표정을 하기까지의 주요 사항들을 항목별로 정리하였으며, 전파 방해 기법에 대해서는 기법별 특성에 대한 간략한 비교, 장비 구성방법과 필수 핵심부에 대한 분석 등을 수록하므로써 전파 방향 탐지 및 방해 기법의 전반에 걸친 내용을 다루었다.

• Proceedings of the KIEE Conference
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• 2009.07a
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• pp.680_681
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• 2009

본 논문에서는 인버터 시스템에서 발생하는 소자 단락을 막기 위해 필수적인 시간 지연 요소인 데드타임 보상을 통하여 인버터시스템의 출력전류 파형 개선과 고조파 저감을 위한 방법을 제안하였다. 제안된 방법을 3KW 급 인버터에 적용하여 실험을 통하여 파형 개선과 고조파 함유율이 현저히 감소함을 확인하고 본 논문에서 제안한 데드타임 보상 방법의 유효성과 우수성을 확인하였다.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 2000.04a
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• pp.475-478
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• 2000

Recently encryption algorithms based on difficulties of factorization have been used with popularization. Prime number factorizations are progressed rapidly. In this paper, characteristics of elliptic curve are analyzed and generation of elliptic curves suitable for prime number factorization is discussed.

• Proceedings of the Korean Statistical Society Conference
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• 2005.11a
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• pp.97-100
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• 2005

A new model-based clustering algorithm is proposed. The idea starts from the assumption that observations are realizations of Gaussian processes and so are correlated. With a special covariance structure, the posterior probability that an observation belongs to each cluster is computed using the ECM algorithm. A preliminary result of small-scale simulation study is given to compare with the k-means clustering algorithms.

• Kyungpook Mathematical Journal
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• v.55 no.2
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• pp.301-311
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• 2015

In this paper, we present the error control techniques for the error correction methods (ECM) which is recently developed by P. Kim et al. [8, 9]. We formulate the local truncation error at each time and calculate the approximated solution using the solution and the formulated truncation error at previous time for achieving uniform error bound which enables a long time simulation. Numerical results show that the error controlled ECM provides a clue to have uniform error bound for well conditioned problems [1].