• International journal of advanced smart convergence
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• 제7권4호
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• pp.50-56
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• 2018

The Internet of Things (IoT) and Visible Light Communication (VLC) is opening up new services in lighting industry by integrating sensory network features in addition to standard illumination functionality. In this progressive developments, the next generation lighting devices for smart homes are capable to sense the environmental conditions and transfer the captured data through lights to gateway controller to access remotely. The smart home environmental sensor information's are few kbps only so VLC systems need to built-in with low rate light connectivity to transfer data to the gateway. To provide error free communication, the quality of a received light signal is important to be considered when designing an VLC receiver. Therefore, this paper proposes the design of robust low rate IoL receiver design using NCP302 voltage detector for micro controller to adapt the IoT/IoL front end module for system integration. To evaluate the proposed system performance, the Arduino UNO based IoT/IoL controller designed with lighting, sensors and lights connectivity interfaces. The experimental result shows that the robust interference rejection is feasible on proposed VOL receiver and possible to have an error-free communication up to 10 kbps at a low SNR using OOK modulation.

• 스마트미디어저널
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• 제11권11호
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• pp.75-83
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• 2022

미국의 NIST에서는 CVE나 CPE와 같은 기존의 취약점 관련 표준을 이용하여 보안 취약성 점검 및 관리를 자동화할 수 있도록 하는 프로토콜인 SCAP을 개발했다. SCAP은 XCCDF 및 OVAL 언어를 이용하여 점검파일을 작성하고 작성한 점검 파일을 OpenSCAP에서 만든 SCAP Workbench와 같은 SCAP 도구로 실행하면 점검 결과를 반환하는 식으로 동작한다. 다양한 운영체제에 대한 SCAP 점검 파일이 NCP 커뮤니티를 통해 공유되고 있으며 점검 파일에는 점검 항목별로 아이디, 제목, 설명, 점검 방법 등이 작성되어 있다. 하지만 점검항목은 단순히 작성한 순서대로 나열되어 있어 보안 관리자가 SCAP 점검 파일을 이용하여 체계적으로 관리할 수 있도록 점검 항목을 유형별로 분류하여 관리할 필요가 있다. 본 연구에서는 OVAL 언어로 작성된 SCAP 점검 파일에서 각 점검 항목에 대한 설명이 작성된 부분을 추출하여 머신러닝 모델을 통해 카테고리를 분류하고, SCAP 점검 결과를 분류한 점검 항목별로 출력하는 방법을 제안한다.

• Journal of applied mathematics & informatics
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• 제32권1_2호
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• pp.211-225
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• 2014

A new class of smoothing functions is introduced in this paper, which includes some important smoothing complementarity functions as its special cases. Based on this new smoothing function, we proposed a smoothing Newton method. Our algorithm needs only to solve one linear system of equations. Without requiring the nonemptyness and boundedness of the solution set, the proposed algorithm is proved to be globally convergent. Numerical results indicate that the smoothing Newton method based on the new proposed class of smoothing functions with ${\theta}{\in}(0,1)$ seems to have better numerical performance than those based on some other important smoothing functions, which also demonstrate that our algorithm is promising.

• Journal of applied mathematics & informatics
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• 제29권3_4호
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• pp.653-668
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• 2011

This paper presents a new hybrid method for solving nonlinear complementarity problems with $P_0$-functions. It can be regarded as a combination of smoothing trust region method with ODE-based method and line search technique. A feature of the proposed method is that at each iteration, a linear system is only solved once to obtain a trial step, thus avoiding solving a trust region subproblem. Another is that when a trial step is not accepted, the method does not resolve the linear system but generates an iterative point whose step-length is defined by a line search. Under some conditions, the method is proven to be globally and superlinearly convergent. Preliminary numerical results indicate that the proposed method is promising.

• 디지털콘텐츠학회 논문지
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• 제7권1호
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• pp.35-40
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• 2006

게임 인공지능 기술은 등장 캐릭터의 지능적인 행동을 구현하고 플레이어에 의해 조종되지 않고 자동적으로 움직이는 NCP(Non Player Characters)의 행동을 제어하는데 요구된다. 본 논문에서는 이러한 게임 인공지능 기술의 제어 시스템으로 사용되는 Movement Scripts, FSM(Finite State Machines), Hierarchical State Machines, Fuzzy State Machines 방식과 캐릭터가 현재 위치에서 목적지까지 갈 수 있도록 이동 경로를 제어하는 Pathfinding techniques방식을 기술하고 각 유형의 한계점을 비교 제시하였다.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2015년도 전력전자학술대회 논문집
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• pp.227-228
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• 2015

본 논문에서는 Optocoupler 절연형 오프라인 플라이백 변환기 궤환 단의 직류 바이어스 해석 기법을 제안한다. 직류 바이어스 해석을 통해 목표한 Current Transfer Ratio(CTR)를 얻고 Junction Capacitance($C_j$)를 측정하여 제어기 설계에 적용시켜 안정도 및 성능을 측정하였다. NCP1230, PC817, TL431 IC를 이용하여 플라이백 변환기의 제어회로를 제작하였고, 시뮬레이션을 이용해 직류 바이어스 해석 기법의 타당성을 검증하였다.

• Mycobiology
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• 제44권4호
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• pp.248-259
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• 2016

During fungal diversity surveys of the order Eurotiales in Korea, two fungal strains, EML-DG33-1 and EML-NCP50, were isolated from samples of rat dung and fig tree leaf collected at a garden located in Gwangju in 2014. To complete the National Species List of Korea, it is a prerequisite to verify whether many questionable species, which were previously recorded but not confirmed, indeed present in Korea. Herein, the isolates were confirmed as undescribed species, Paecilomyces variotii and Talaromyces amestolkiae based on the combination of morphological and phylogenetic analyses of multigenes including the rDNA internal transcribed spacer, ${\beta}-tubulin$, and RNA polymerase II subunit 2.

• The Plant Pathology Journal
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• 제25권1호
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• pp.26-37
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• 2009

Tomato spotted wilt virus (TSWV) was identified from seven plants at two areas, Anyang and Dangjin, in Korea. The isolates of TSWV were seven as TSWV-KATm from tomato, TSWV-KAPo from potato, TSWV-KABal from balsam, TSWV-KACTm from cherry tomato and TSWV-KAIxe from Ixeris dentata at Anyang area, and TSWV-KDSe from sesame and TSWV-KDRP from red pepper at Dangjin area. Pathogenicity of seven TSWV isolates was various on the assay plants, and could not be grouped definitely. Three isolates of TSWV-KAIxe, TSWV-KACTm and TSWV-KABal had relatively narrower host ranges among the seven isolates. Percentage of nucleotide substitution in nucleotide sequences encoding nucleocapsid protein (NCP) was 1.2-1.7% among seven TSWV isolates and TSWV-KP. Korean TSWV isolates were divided into three groups by nucleotide homology or amino acid compositions. From the analysis of nucleotide sequences of Korean TSWV isolates compared with those of TSWV reported from other 5 countries including Japan, the Korean seven isolates of TSWV was grouped with German TSWV (D13926). No Korean TSWV isolates were grouped with those from The Netherlands, Brazil and USA.

• 한국마이크로전자및패키징학회:학술대회논문집
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• 한국마이크로전자및패키징학회 2002년도 International Symposium
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• pp.21-30
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• 2002

According the difference of flex substrate, (reel tape), there are three kind assembly types of LCD driver IC is COG, TCP and COF, respectively. The TCP is the maturest in these types for stability of raw material supply and other specification. And TCP is the major assembly type of LCD driver IC and the huge demand from Taiwan's large TFT LCD panel house since this spring. But due to its package structure and the raw material applied in this package, there is some limitation in fine pitch application of this package type, (TCP). So, COF will be very potential in compact and portable application comparison with TCP in the future. There are three kinds assembly methods in COF, one is ACF by using the anisotropic conductive film to connect the copper lead of tape and gold bump of IC, another is eutectic bonding by using the thermo-pressure to joint the copper lead of tape and gold bump of IC, and last is NCP by using non-conductive paste to adhere the copper lead of tape and gold bump of IC. To have a global realization, this paper will briefly review the status of Taiwan's large TFT panel house, the internal driver IC design house, and the back-end assembly house in the beginning. The different material property of raw material, PI tape is also compared in the paper. The more detail of three kinds of COF assembly method will be described and compared in this paper.

• 음성과학
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• 제9권3호
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• pp.185-200
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• 2002

The current study confirmed the existence of an ip prosodic level in French intonation structure, as previously proposed by Sun-Ah Jun & $C\acute{e}cile$cile Fougeron (2000). However, in contrast to the previous suggestion of the plateau realized in an ip in several syntactic structures, the current study supposed that the plateau doesn't come from the different type of syntactic structures but arise from the unspecified syllables without any PA in an ip. Because if we limited ip phrasal tone to the syntactic structure, it would be difficult to find the more general reasons of ip level. Besides /Hi/ and /$H^*$/ we also used /$Hi^*$/ for the focused syllable in the current study. In emphasized sentences, in general, /$Hi^*$/ appeared in the first or second syllable of a leftward AP in an ip and /$H^*$/ in the final syllable of a rightmost AP of an ip, In contrast to these PAs, /$Hi^*$/ might appear in any syllable in an ip, but not to far from /$H^*$/ because the duration time and length t of plateau realized between /$Hi^*$/ and /$H^*$/ or /Hi/ and /$H^*$/ would make an essential harmonious rhythmic unit, Therefore, the current study determined the duration time and the number of syllables realized in each plateau in an ip level composed of more than one AP. As a phrase constituent structure, there is a practical need for intermediate prosodic units to allow for generalization over the many possible combinations of prosodic patterns that can occur. Further evidence is still needed to analyze and relate the different pitch ranges of the plateau of an ip according to the syntactic structure, to identify the considerable character in the French prosodic hierarchy.