• Journal of the Institute of Electronics Engineers of Korea SD
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• v.41 no.11
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• pp.115-121
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• 2004

GenJTAG implemented in this paper is an automatic web-based boundary scan circuit generator. GenJTAG supports all the public instructions for the boundary scan technique, and also private instructions for other DFT techniques to be applied. Users can easily edit the generated boundary scan circuit code because it is described in behavioral level with the Verilog-HDL. GenJTAG has another advantage that any one can generate the boundary scan circuit by simply accessing to the web site.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.11 no.4
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• pp.113-118
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• 2011

Sequence homology analysis in the substances in the phenomenon of life is to create database by sorting and indexing and to demonstrate the usefulness of informatics. In this paper, Markov models are used in GenScan program to convert the pattern of complex eukaryotic protein sequences. It becomes impossible to navigate the minimum distance, complexity increases exponentially as the exact calculation. It is used scorecard in amino acid substitutions between similar amino acid substitutions to have a differential effect score, and is applied the Markov models sophisticated concealment of the transition probability model. As providing superior method to translate sequences homologous sequences in analysis using blast p, Markov models. is secreted protein structure of sequence translations.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.27 no.1A
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• pp.66-72
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• 2002

In this paper, we implemented the GenJTAG, a CAD tool, which generates a code of boundary scan circuit supporing a board level testing and d BIST(Built-In Self Test) written in verilog-HDL. A boundary scan circuit code that supports user's own BIST instructions is generated based on the informations from the users. Most CAD tools hardly allow users to add their own BIST instructions because the generated code described in gate-level. But the GenJTAG generates a behavioral boundary scan circuit code so users can easily make a change on the generated code.

• The KIPS Transactions:PartD
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• v.12D no.5 s.101
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• pp.755-764
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• 2005

Recently, as it is considered more important to identify the function of ail unknown genes in living things, many tools for gene prediction have been developed to identify genes in the DNA sequences. Unfortunately, most of those tools use their own schemes to represent their programs results, requiring researchers to make additional efforts to understand the result generated by them So, it is desirable to provide a standardized method of representing predicted gene information, which makes it possible to automatically produce the predicted results for a given set of gene data In this paper, we describe an effective U representation for various predicted gene information, and present an XML-based analysis tool for gene predication results based on this representation. The developed system helps users of gene prediction tools to conveniently analyze the predicted results and to automatically produce the statistical results of the prediction. To show the usefulness of the tool, we applied our programs to the results generated by GenScan and GeneID, which are widely used gene prediction systems.

• Journal of the Korea Society of Computer and Information
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• v.20 no.3
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• pp.97-106
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• 2015

In this paper, the development of infrared threat surrogate system is described and it can be used to verify the performance of DIRCM system. In this research, threat surrogates are manufactured using same F# and reflective optics used in 1st- and 2nd-Gen. real seeker so that the threat surrogate system can be used to develop code-based jamming techniques. Also the threat surrogate system can analyze the saturation jamming effect for image seeker using FPA detector. The result shows that 1st- and 2nd-generation threat surrogates have relatively precise tracking performance and jamming effect.

• Korean Journal of Microbiology
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• v.39 no.4
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• pp.207-215
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• 2003

Gene structure prediction, which is to predict protein coding regions in a given nucleotide sequence, is the most important process in annotating genes and greatly affects gene analysis and genome annotation. As eukaryotic genes have more complicated stuructures in DNA sequences than those of prokaryotic genes, analysis programs for eukaryotic gene structure prediction have more diverse and more complicated computational models. We have developed EGSP, a eukaryotic gene structure program, using duration hidden markov model. The program consists of two major processes, one of which is a training process to produce parameter values from training data sets and the other of which is to predict protein coding regions based on the parameter values. The program predicts multiple genes rather than a single gene from a DNA sequence. A few computational models were implemented to detect signal pattern and their scanning efficiency was tested. Prediction performance was calculated and was compared with those of a few commonly used programs, GenScan, GeneID and Morgan based on a few criteria. The results show that the program can be practically used as a stand-alone program and a module in a system. For gene prediction of eukaryotic microbial genomes, training and prediction analysis was done with Saccharomyces chromosomes and the result shows the program is currently practically applicable to real eukaryotic microbial genomes.

• Journal of the Institute of Electronics Engineers of Korea SD
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• v.38 no.10
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• pp.746-753
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• 2001

GenBIST implemented in this paper is an automatic CAD tool, which can automatically generate circuitry in VerilogHDL code based on user defined information for the memory testing. While most commercial and conventional CAD tools adopt a method in which they make memory-testing algorithms as a library to generate circuitry, our tool can generate circuitry according to the user-defined algorithm, which makes application of various algorithms easier. In addition, memory BIST circuitry can be shared with other memories by supporting embedded memories in our tool. Also, extra pins for the memory testing are not requited when boundary scan technique is combined.

• Proceedings of the Korea Information Processing Society Conference
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• 2007.11a
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• pp.452-455
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• 2007

생명과학 기술의 급속한 발달로 인류 복지 증진에 많은 기여를 하였지만 아직도 각종 질병 등으로 많은 사람들이 고통 받고 있으며, 이를 극복하기 위한 연구 및 기술개발은 세계 각처에서 계속되고 있다. 이러한 연구 및 기술개발의 결과로 산출되는 생명정보 데이터의 양은 기하급수적으로 증가하고 있기에 이런 방대한 양의 생명정보 데이터를 분석하고 분석된 데이터에서 인류 복지에 유용한 정보를 얻기 위한 생명정보학(Bioinformatics)이 등장하게 되었다. 이에, 한국과학기술정보연구원(KISTI)은 IT 기반 생명정보 인프라 구축의 중심기관으로 CCBB(Center for Conputationa Biology & Bioinformatics) 웹사이트를 운영하고 있다. CCBB는 전산학적인 기술을 이용한 생명현상 연구를 지원하기 위하여 21종의 생명정보 콘텐트(DB 및 분석도구)를 수집 분석 구축 제공하고 있다. 이 중에서 GenBank, PDB, PIR, Swiss-prot 등의 데이터베이스는 KISTI에서 개발한 KRISTAL 검색엔진을 통하여 국내에서도 빠르고 쉽게 검색 가능하도록 자체 구축하고 있으며, 이와 더불어 BLAST, FASTA, ClustalW 등의 주요 분석 도구 또한 제공하고 있다. 본 논문에서는 CCBB에서 제공중인 21종의 콘텐트 중에서 GenBank, REBASE, GeneCards, InterProScan 등 4종의 대용량 고효율 생명정보 콘텐트의 소개 및 업데이트 방법에 관한 내용을 기술하고자 한다.

• Proceedings of the Korean Society for Bioinformatics Conference
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• 2003.10a
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• pp.200-209
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• 2003

주어진 염기서열에서 유전자 영역을 예측하는 유전자 구조 예측은 유전체 프로젝트의 중요한 과정 중 하나이며 유전체 프로젝트 전체에 큰 영향을 준다. 진핵생물의 유전체가 원핵생물의 유전체에 비해 더 복잡한 구조를 가지기 때문에 진핵생물의 유전자 구조 예측 모델 역시원핵생물에 비해 다양한 모델이 제안되었다. 본 연구팀은 duration hidden markov model을 기본형태로 하여 EGSP(Eukaryotic Gene Structure Prediction)프로그램을 개발하였다. 현재 개발된 진핵생물의 유전자 구조 예측 알고리즘 중에서 GenScan이 가장 정교한 젓으로 보고 되고 있는데, EGSP의 결과분석을 위해 Genscan과 함께 GeneID, Morgan의 예측결과를 여러 가지 기준에서 비교하였다. EGSP는 정교한 예측모델을 가지고 있음에도 각 구성모듈에 대한 파라메터의 정교함에서 부족한 면이 나타나므로, 모델의 개선과 각 모듈의 조율을 통해 더욱 개선된 결과를 가지게 될 것이다.

• Journal of the Korean Society of Manufacturing Technology Engineers
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• v.20 no.1
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• pp.47-52
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• 2011

It is well known that stiffness of composites depends on layup sequence of CFRP(carbon fiber reinforced plastics) laminates because the layup of composite laminates influences their properties. Ultrasonic NDE of composite laminates is often based on the backwall echoes of the sample. A pair of such transducers was mounted in a holder in a nose-to-nose fashion to be used as a scanning probe on composites. Miniature potted angle beam transducers were used (Rayleigh waves in steel) on solid laminates of composites. Experiments were performed to understand the behavior of the transducers and the nature of the waves generated in the composite (mode, wave speed, angle of refraction). C-scan images of flaws and impact damage were then produced by combining the pitch-catch probe with a portable manual scanner known as the Generic Scanner ("GenScan"). The pitch-catch signal was found to be more sensitive than normal incidence backwall echo of longitudinal wave to fiber orientation of the CFRP composites, including low level porosity, ply waviness, and cracks. Therefore, it is found that the experimentally Rayleigh wave variation of pitch-catch ultrasonic signal was consistent with numerical results and one-side ultrasonic measurement might be very useful to detect the defects.