• Title/Summary/Keyword: Public Structure

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The Implementation of Processor for Linearly shift Knapsack Public Key Crypto System In Cheon Paik (선형이동 Knapsack 공개키 암호시스템을 위한 프로세서 구현)

  • 백인천;차균현
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.19 no.11
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    • pp.2291-2302
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    • 1994
  • This paper shows the implementation and design of special processor for linearly shift knapsack public key cryptography system. We highten the density of existing knapsack vector and shift the vectors linearly in order to implement the structure of linearly shift knapsack system which has the stronger cryptosystem. As it needs the parallel processing at each path according to the characteristics of this system. we propose the pipelined parallel structure and implement this system into VLSL. Also we evaluate this system and compare with other systems. The processing speed of this system is 550kb/s when dimension is 100. It is possible to use this system at the place of requiring high speed security to enlarge the structure of it.

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Structure Evaluation of Korean Health Promotion Programs (우리나라 보건소 건강증진 사업의 구조적측면 평가)

  • Lee Chung Yul;Kim Hee Soonl;Lee Tae Wha;Ham Ok Kyung
    • Journal of Korean Public Health Nursing
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    • v.17 no.2
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    • pp.181-191
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    • 2003
  • Purpose: The purpose of this study was to evaluate demonstration health promotion programs offered by 18 health centers in a structural aspect of the health centers. Methods: The Evaluation Committee was organized with professors from collaboration universities and researchers of this study. Using structure evaluation frame. reports from 18 health centers were reviewed by the committee. Evaluation categories included organizational change, manpower construction, budget, and manpower training and education. Results: Only 5 health centers out of 18 have independent health promotion department. Nurses played a major role for health promotion programs. Other health personnel participated in the health promotion programs included dental hygienists, nutritionists, and exercise specialists. Related to program budgets. local government support rates were varied by the region. Various kind of manpower training was offered to health personnel for the health promotion programs including smoking control. exercise, alcohol, nutrition, and so forth. Conclusion: The study results indicated that establishment of independent health promotion department, maintenance of same manpower construction, provision of diversity manpower training were the factors that foster effective health promotion programs.

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A Scalable Secure Multicast Key Management Structure (확장성을 제공하는 안전한 멀티캐스트 키 관리 구조)

  • Park, Hee-Un;Lee, Im-Yeong;Park, Won-Joo;Lee, Jong-Tai;Sohn, Sung-Won
    • Journal of KIISE:Information Networking
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    • v.29 no.2
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    • pp.109-116
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    • 2002
  • Through the increment of requirement for group oriented communication services, on the open network, the multicast infrastructure has become a widely discussed researching topic. However the research of the security properties that safety, efficiency and scaleability in a multicast structure, has not been enough. In this study, we discuss conventional multicast key management structures and propose a scalable secure multicast key management structure based on PKI(Public Key Infrastructure), IPSec, domain subgroup and structural two mode scheme. Also we certify to the usability of new proposed scheme from comparing it with conventional schemes in the part of safety, efficiency and scaleability.

Analysis and survey of design decision making process in steel production process

  • Furukawa, Satoru;Yoshida, Tomohiro;Chi, Naiyuan;Okamoto, Hiroyuki;Furusaka, Shuzo
    • International conference on construction engineering and project management
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    • 2020.12a
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    • pp.30-37
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    • 2020
  • In the building construction, the steel-frame work occupies an important position in terms of structure, cost and quality. Especially in Japan, steel frames have traditionally been the main structure of many buildings. For steel-frame works in such positions, this paper investigates an existing steel fabricator to clarify the actual conditions of design decision making process and management method in steel production process. This study focuses on a steel fabricator (Company M in the following sentences), whose main market is Japan and which has facilities in Thailand, China, and Japan. Company M uses QR codes to control the production status of products, and exchanges all information between inside and outside the company via specialized departments in the form of documents. The authors have already analyzed the relationship between production lead time and defect rate based on actual project data at Architectural Institute of Japan in 2016. In 2019, we expressed the process from the confirmation of the design information of the current steel frame to the production by WBS, and clarified the relationship between the production lead time and steel frame product quality structurally. In this paper, the authors reoport the progress of the survey conducted so far, the positioning of the collected data, and the future survey policy.

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The Grammatical Structure of Protein Sequences

  • Bystroff, Chris
    • Proceedings of the Korean Society for Bioinformatics Conference
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    • 2000.11a
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    • pp.28-31
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    • 2000
  • We describe a hidden Markov model, HMMTIR, for general protein sequence based on the I-sites library of sequence-structure motifs. Unlike the linear HMMs used to model individual protein families, HMMSTR has a highly branched topology and captures recurrent local features of protein sequences and structures that transcend protein family boundaries. The model extends the I-sites library by describing the adjacencies of different sequence-structure motifs as observed in the database, and achieves a great reduction in parameters by representing overlapping motifs in a much more compact form. The HMM attributes a considerably higher probability to coding sequence than does an equivalent dipeptide model, predicts secondary structure with an accuracy of 74.6% and backbone torsion angles better than any previously reported method, and predicts the structural context of beta strands and turns with an accuracy that should be useful for tertiary structure prediction. HMMSTR has been incorporated into a public, fully-automated protein structure prediction server.

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A Study on Controlling the Effects of the Internal Explosion of the Explosive Disposal Structure (폭발물 처리 구조물의 내부폭발 영향 제어에 관한 연구)

  • 강영철;최정욱
    • Journal of the Korea Institute of Military Science and Technology
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    • v.3 no.2
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    • pp.204-212
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    • 2000
  • The waste ammunitions have been accumulated in excessive amounts these days. This study focused on the problems related to the method of ammunition disposal which leads the explosion inside the enclosure structure and controls the effects of detonation. This study enables us to design a new type of explosive disposal facilities that would fit to our environments. And this study gives us the prototype design of the explosive disposal structure that are explored in this research and will give us a chance to develop a new type structure that have not been devised by Army, and also will be applicable to construct a civilian explosive disposal structure located in airports, harbors, and public facilities.

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A Study on the Factors Affecting the KBS Institution and the Expert Recognition Study on the Improvement of Governance (KBS 제도에 영향을 미치는 요인과 지배구조 개선에 관한 전문가 인식 연구)

  • Park, Jong-Won;Lee, Chang-Hyung;Kim, Kwang-Ho
    • Journal of Digital Contents Society
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    • v.19 no.6
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    • pp.1069-1079
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    • 2018
  • Based on the theory of media governance, we analyzed the factors affecting the KBS system and the perception of the improvement of corporate governance, and suggested ways to improve the governance structure. The results of the study are as follows. First, the factors affecting the KBS system are politics, followed by the public broadcasting itself, that is, professionalism. Political factors were found to be the most influential factors in the public broadcasting KBS Institution. Second, the KBS governance structure, like the BBC, preferred a political independent model, while the board composition and proportions favored a German-style union model involving various stakeholders outside the political circle. Third, the future - oriented KBS governance model requires a change in the civil society (public) sphere that is deviated from the influence of politics and market. In the end, in order for the public broadcasting KBS system to operate stably, the political influence should be reduced, and the role of the government and the market should be controlled by the growth of the public sphere (civil society).

Cytotoxic Effects on HL-60 Cells of Myosin Light Chain Kinase Inhibitor ML-7 Alone and in Combination with Flavonoids

  • Lee, Joong-Won;Kim, Yang-Jee;Choi, Young-Joo;Woo, Hae-Dong;Kim, Gye-Eun;Ha, Tae-Kyung;Lee, Young-Hyun;Chung, Hai-Won
    • Toxicological Research
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    • v.25 no.4
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    • pp.181-188
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    • 2009
  • Uncontrolled cell growth and increased cell proliferation are major features of cancer that are dependent on the stable structure and dynamics of the cytoskeleton. Since stable cytoskeleton structure and dynamics are partly regulated by myosin light chain kinase (MLCK), many current studies focused on MLCK inhibition as a chemotherapeutic target. As a potent and selective MLCK inhibitor, ML-7 [1-(5-iodonaphthalene-1-sulfonyl)-1 H-hexahydro-1,4-diazapine hydrochloride] is a promising candidate for an anticancer agent, which would induce apoptosis as well as prevents invasion and metastasis in certain types of cancer cells. This study assessed cytotoxic effects of ML-7 against HL-60 cells and therapeutic efficacy of ML-7 as a potential antileukemia agent. Trypan-blue exclusion assays showed dose- and time- dependent decreases in ML-7 treated HL-60 cells (p<0.05). Comet assays revealed a significant increase in DNA damage in HL-60 cells after treatment with $40{\mu}M$ ML-7 for 2h. Sub-G1 fractions, analyzed by flow cytometry increased in a dose-dependent manner, suggesting that ML-7 can induce apoptotic cell death in HL-60 cells. ML-7 was selectively cytotoxic towards HL-60 cells; not affecting normal human lymphocytes. That selective effect makes it a promising potential anti-leukemia agent. In addition, anticancer efficacy of ML-7 in combination with flavonoids (genistein or quercetin) or anticancer drugs (cisplatin or Ara-C) against HL-60 cells was assessed. Combination of ML-7 with flavonoids increased the anti-cancer effect of ML-7 to a greater extent than combination with the anticancer drugs. This implies that ML-7 in combination with flavonoids could increase the efficacy of anticancer treatment, while avoiding side effects cansed by conventional anticancer drug-containing combination chemotherapy.

Design of Safety Management System for IoT based in SIP (SIP기반 임베디드 IoT 안전관리 시스템 설계)

  • Kim, Sam-Taek
    • Journal of the Korea Convergence Society
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    • v.9 no.10
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    • pp.69-74
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    • 2018
  • IP and SIP public broadcasting systems developed in Korea and abroad are developed in a Windows or Linux server environments and are installed in a server-rack structure, have high power consumption, and are difficult to remotely respond to system failures. In this paper, IoT platform is designed to connect IoT device and gateway to IoT service server by using internet service structure. We also designed a server based on embedded OS that can provide a variety of public safety management services according to the order of the server with built-in call processing and broadcasting function that can handle emergency calls and emergency broadcasts in public places using this structure. This server is interoperable with a variety of SIP-based call and broadcast devices that support the standard SIP and can be integrated with an in-house phone and on-premises system.