• Proceedings of the Korean Magnestics Society Conference
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• 2004.06a
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• pp.11-11
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• 2004

• Magazine of the Korea Concrete Institute
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• v.7 no.5
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• pp.101-105
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• 1995

• Journal of the Korea Institute of Military Science and Technology
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• v.16 no.3
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• pp.382-389
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• 2013

In anti-jamming GPS receiver, adaptive signal processing techniques in which the radiation pattern of adaptive array antenna of elements may be adaptively changed used to reject interference, clutter, and jamming signals. In this paper, I describes adaptive signal processing technique using the sample matrix inversion(SMI) algorithm. This adaptive signal processing technique can be applied effectively to wideband/narrowband anti-jamming GPS receiver because it does not consider the satellite signal directions and GPS signal power level exists below the thermal noise. I also analyzed the effects of covariance matrix sample size and diagonal loading technique on the system performance of five-element circular array antenna. To attain near optimum performance, more samples required for calculation covariance matrix. Diagonal loading technique reduces the system nulling capability against low-power jamming signals, but this technique improves robustness of adaptive array antenna.

• Journal of the Korean Operations Research and Management Science Society
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• v.29 no.3
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• pp.63-78
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• 2004

This paper deals with a supplier-managed inventory(SMI) control for a two-echelon supply chain model with a service facility and a single supplier. The service facility is allocated to customers and provides a service using items of inventory that are purchased from the supplier, Assuming that the supplier knows the information of customer queue length as well as inventory position in the service facility at the time when it makes a replenishment decision, we identify an optimal replenishment policy which minimizes the total supply chain costs by reflecting these information into the replenishment decision. Numerical analysis demonstrates that the SMI strategy can be more cost-effective when the information of both customer queue length and inventory position is shared than when the information of inventory position only is shared.

• Journal of the Korea Computer Industry Society
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• v.3 no.2
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• pp.191-198
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• 2002

As the number of agent application grows, agent management scheme is required for the efficient manipulations of it. In this paper, we studied an agent management scheme for monitoring and control of the working of an agent. For efficient management of an agent, we investigated the characteristics of the agent, and defined management information according to the specification of the SNMP SMI standard. Implemented scheme uses agent master system for the efficient management of many agent applications. We applied the defined management scheme using agent system that we developed in our laboratory, and found that our scheme was efficient for the monitoring and management of the agent applications.

• Journal of Environmental Science International
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• v.1 no.1
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• pp.23-27
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• 1992

The changes of pectoral muscle size (as an index of protein reserves) and fat reserves (as an index of lipid) were measured in wintering Dunlin during 1988 -1989 on two estuaries located in the south coast of Korea. The mean of lean mass of February population was greater(11.8%) than that of October population. SMI of October population was greater(4.5%) than that of February population and lipid index of October population also greater(1.6%) than that of February population. This show that the body condition of October population is better than February population. The mean of fat and protein reserves of 22 % of Dunlin arriving on October for their wintering were higher than that of others, this group seems to continue their migration to south further and 11% of the wintering population seems to starve during winter.

• Proceedings of the Korea Information Processing Society Conference
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• 2014.11a
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• pp.221-224
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• 2014

IoT(Internet of Things)기술은 현재 핵심 IT 트렌드 중 하나로서 여러 분야에서 앞으로도 지속적인 발전을 통해 수많은 기기가 연결 되어 빠르게 사물인터넷 시대에 도래하게 될 것이다. 이를 위해 세계 각국에서도 활발한 연구를 진행 중에 있는 한편, 아직까지 서비스 제공을 위한 개방형 통일 표준이 확립되지는 않아 이질성의 문제가 발생하게 된다. 따라서 본 논문에서는 IoT 여러 분야 중 홈 네트워크에서 사용되는 기기가 IoT화 된다고 가정하고 먼저 구현되어야 할 기본적인 공통 명령 및 데이터타입을 SNMP 프로토콜의 SMI 기반으로 설계하여 제안한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.11a
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• pp.212-214
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• 2012

분산 컴퓨팅 자원의 효율적인 관리기술은 많은 기업, 연구소, 표준기관이 연구해온 분야로 최근까지도 관련된 개방형 프로젝트가 진행되고 있다. 대표적으로 DMTF는 선도적인 기업체를 중심으로 학계와 협력하여 객체지향 방법을 통한 다양한 컴퓨팅 하드웨어 및 소프트웨어 관리 시스템의 정보를 CIM기반의 객체로 정의하고 있다. 또한 SNIA에서는 DMTF의 CIM 표준을 기반으로 개방형 스토리지 관리 표준인 SMI-S 규격을 제공하고 있다. 본 논문에서는 SNIA에서 제공하는 SMI-S CIIM 스키마를 이용하여 상용 가상화 소프트웨어 인 Citrix Storagelink를 통해 Third Party 스토리지 시스템을 관리하기 위한 기술에 대해 설명한다.

• Journal of Ginseng Research
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• v.27 no.3
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• pp.98-102
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• 2003

The aim of this study is to evaluate clinical usefulness of Korean red ginseng (RG) on various postmenopausal syndromes. Total plasminogen inhibitor-l (tPAI-l) in peripheral blood from 9 postmenopausal women with climacteric syndromes (CS) was measured before and 3 months after treatment with daily oral administration of 6 g RG and that from 8 postmenopausal women without any CS was also measured as healthy controls. Blood samples were collected in the early morning on the bed-rest. Psychological conditions of postmenopausal women with CS were measured before and 3 months after treatment with RG using simplified menopausal index (SMI). In addition, OKETSU (blood stagnation) syndrome scores and KI deficiency (generalized energy stagnation) scores proposed by Terasawa et al., were recorded before and 3 months after treatment with RG in postmenopausal women with CS and in healthy postmenopausal women. OKETSU syndrome scores and tPAI-l levels in postmenopausal patients with CS were significantly (P<0.001 and P<0.01) higher than those in healthy postmenopausal women without CS. Similarly, SMI scores and KI deficiency scores in postmenopausal patients with CS were about three-fold higher than those without any CS. When RG was administered for 3 months, KI deficiency scores and OKETSU scores as well as SMI scores declined around the levels of healthy postmenopausal women. Although tPAI-1 levels significantly (P<0.05) decreased after treatment with RG, those did not reach the levels of healthy postmenopausal women. Clinical usefulness of administration of RG to postmenopausal women with CS was confirmed from evaluation not only by modem medicine but also by traditional KAMPO medicine.

• Imaging Science in Dentistry
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• v.35 no.3
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• pp.167-173
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• 2005

Purpose : To investigate the relationship between three-dimensional (3D) bone imaging parameters and trabecular strength in the mandible. Materials and Methods : Bone specimens were obtained from the mandibles of five male pigs weighing around 110 kg each. Of those, 43 samples were selected for 3D analysis and measured by micro-computed tomography. The five morphometric parameters were trabecular thickness (Tb.Th), bone specific surface (BS/BV), percent bone volume (BV/TV), structure model index (SMI) and degree of anisotropy (DA). Through destructive mechanical testing, strength parameters were obtained. Results : BV/TV, SMI, BS/BV, and Tb.Th showed significant correlations with strength parameters. DA did not show any correlation with the other parameters. In multiple linear regression analysis, BV/TV alone explained $43\%$ of the variance in Young's modulus. By stepwise inclusion of SMI, the variance in the Young's modulus was better explained up to $52\%$. Conclusions : Predicting trabecular strength in the mandible through architectural analysis would be possible. Further study is needed to establish the tendency and variety of trabecular architecture and strength according to the locations within the mandible.