• Title/Summary/Keyword: Property based

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Integral Attacks on Some Lightweight Block Ciphers

  • Zhu, Shiqiang;Wang, Gaoli;He, Yu;Qian, Haifeng
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.14 no.11
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    • pp.4502-4521
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    • 2020
  • At EUROCRYPT 2015, Todo proposed a new technique named division property, and it is a powerful technique to find integral distinguishers. The original division property is also named word-based division property. Later, Todo and Morii once again proposed a new technique named the bit-based division property at FSE 2016 and find more rounds integral distinguisher for SIMON-32. There are two basic approaches currently being adopted in researches under the bit-based division property. One is conventional bit-based division property (CBDP), the other is bit-based division property using three-subset (BDPT). Particularly, BDPT is more powerful than CBDP. In this paper, we use Boolean Satisfiability Problem (SAT)-aided cryptanalysis to search integral distinguishers. We conduct experiments on SIMON-32/-48/-64/-96, SIMON (102)-32/-48/-64, SIMECK-32/-48/-64, LBlock, GIFT and Khudra to prove the efficiency of our method. For SIMON (102)-32/-48/-64, we can determine some bits are odd, while these bits can only be determined as constant in the previous result. For GIFT, more balanced (zero-sum) bits can be found. For LBlock, we can find some other new integral distinguishers. For Khudra, we obtain two 9-round integral distinguishers. For other ciphers, we can find the same integral distinguishers as before.

A Study on the Intervention of Property Management Enterprises in Community Governance Model - Based on Property Management of Public Product in Attribute Perspective -

  • Ye, Zhi-Xiao;Choi, Myeong-Cheol;Kim, Seung-jin
    • International Journal of Advanced Culture Technology
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    • v.8 no.3
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    • pp.84-89
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    • 2020
  • At the end of 2019, there was the major outbreak of "COVID-19" in China. In this outbreak prevention and control campaign, the property management enterprises(PME) performed actively, playing a vital role in China. This paper puts forward that the property management enterprises(PME) should be included as subjects of national urban and rural community governance from the perspective of the public product attribute of property management. Based on the properties of public goods in property management, this paper redefines the functions and positioning of PME with public affairs management, establishes the qualification of PME to participate in one of the main bodies of community public governance. And it forms a new model of community governance with community residents committees, owner' committee and PME as the main body. This research provides implications for national urban and rural community governance models by applying existing theories and practical examples.

An International Comparative Study of Intellectual Property Education in Graduate school of Engineering (공과대학원의 지식재산 교육에 관한 국제 비교 연구)

  • Kim, Joon-Ho;Hong, Jin-Hwan
    • Journal of Engineering Education Research
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    • v.11 no.1
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    • pp.101-116
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    • 2008
  • As industrial society has changed to knowledge-based society, the needs for the intellectual property education in the engineering school is emphasized. Therefore graduate engineering school in USA, Europe, and Japan has strengthened intellectual property education. The curriculum has expanded from intellectual property introduction to business development using patent technology, valuation of intellectual property, intellectual property strategy and management. However, the intellectual property education in engineering school in Korea is in early stage. This study has surveyed the intellectual property education in major engineering school in USA, Europe and Japan, and compared it with the education in Korean engineering school. Finally, some recommendations are provided based on this study.

Web-based Materials Property Database System (Web 기반 재료물성 데이터베이스 시스템)

  • Lee, W.K.;Baek, U.B.;Park, P.;Jung, I.H.;Kim, D.M.
    • Proceedings of the KSME Conference
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    • 2001.06a
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    • pp.126-131
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    • 2001
  • Materials property data are necessary to secure the reliability of failure prevention techniques such as inspection and remaining life assessment of civil infrastructure and industrial facilities. However, there is no properly collected data in Korea, and those foreign data are hard to use because of the scattering of the sources, the difference of standards, etc. In this paper, materials property database system which has been constructed at Korea Research Institute of Standards and Science is introduced. Constructed database contains 145,000 numeric data of materials property for 600 kinds of metals and can be retrieved on the internet. The database system provides graphical user interface-based information searching functions necessary for the life evaluation and safety analysis.

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A Study on Arbitration Qualification of Intellectual Property Right Dispute - Focus on Korea and China - (지적재산권분쟁의 중재적격에 관한 연구 -한국과 중국을 중심으로-)

  • Choi, Song-Za
    • Journal of Arbitration Studies
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    • v.21 no.2
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    • pp.27-46
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    • 2011
  • In the intellectual based society of the 21th century, intellectual property of nation and enterprise management has been the key element of nation's competitiveness and development. Therefore in countries like Korea, China, and many other countries, intellectual property of advancement strategy are being constructed and intellectual properties are protected at national level. Top priority task of protecting the intellectual property is to efficiently resolute intellectual property right disputes. Considering the nature of intellectual property right and arbitrage system, arbitration to solve intellectual property disputes is realistically the best method. However, not all cases of them are qualified. In order to relieve the intellectual property disputes through arbitration, qualification must be obtained. During the process, generally and globally, intellectual property right dispute is evaluated by three parts, intellectual property right contract dispute, intellectual property right violation dispute, and intellectual property right validity dispute. Based on UN's "Convention on the Recognition and Enforcement of Foreign Arbitral Awards Agreement" in 1958, June 10th, in New York, both arbitrage organization and judgment can be approved in both Korea and China countries. However, as of today, there is a big gap of arbitration qualification between two countries, which can be troublesome if intellectual property right disputes arise. For instance, in Korea, intellectual property right contract disputes and intellectual property right violation disputes are both generally accepted as arbitration qualification. However for intellectual property right validity dispute, arbitration qualification is only accepted for non-registered intellectual property as in copyright entity. It does not apply to other registered intellectual property right as in patents. In China, arbitration qualification is accepted for intellectual property right contract dispute, and also accepted for intellectual property right violation dispute to copyrights but restricted to others. As for intellectual property right validity dispute, arbitration qualification is completely denied. Therefore, when there is an intellectual property right dispute between Korea and China, the biggest problem is whether China will accept arbitrage judgments made in Korea. Theoretically, arbitrage judgement made in Korea should be also accepted in China's court. However, considering the criticism of China's passive nature of arbitration qualification for its own local intellectual property right disputes, it's very unlikely they'll actively accept arbitrary judgment made in foreign countries. Korea and China must have a more open minded approach for intellectual property disputes and arbitration qualification. Base on WTO's Intellectual Property Right Agreement, it's being defined as private right. Therefore, sovereign principle should be the basic principle of solving intellectual property right disputes. Currently, arbitration qualification is expanding internationally. So both Korea and China must also follow the trend expand the arbitration qualification with a more open minded and forward looking approach, for the good of intellectual property disputes.

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Insulation Property of Cement-based Non-combustible Inorganic Insulation Using MgO and Redispersible Polymer Powder (산화마그네슘 및 재유화형 분말수지를 사용한 시멘트계 불연단열재의 단열특성)

  • Son, Bae-Geun;Song, Hun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2021.05a
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    • pp.120-121
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    • 2021
  • The organic insulation material has excellent thermal insulation property, but it is difficult to expect fire stability, and semi inorganic insulation only delays combustible hour but it is difficult to expect fire stability. In this study, thermal insulation property of cement-based non-combustible inorganic insulation using cement and non combustible materials and redispersible polymer powder was studied. As a result of the experiment, the thermal insulation property decreased as the use of redispersible polymer powder increased, but the heat insulation property improved when using the appropriate amount.

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A Study on the Seller's Liability under Article 42(1) of the CISG (CISG 제42조 (1)항의 매도인의 책임에 관한 소고)

  • Heo, Kwang Uk
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.60
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    • pp.47-77
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    • 2013
  • The way for seller to procure the goods for selling is to produce the goods at his own factory and to buy the manufactured goods from the other company. In order to produce the goods for selling the seller have to obtain the resource from the domestic company or overseas. In the middle of producing the goods to sell, seller may breach the right of a third party based on intellectual property rights. That is to say, seller may use the machine that has not itself been patented and use a process which has been patented by a third party. Seller may manufacture the goods which themselves are subject to the third party industrial property rights. Nowadays it is stressed the importance of intellectual property rights such as a patent, brand, and design. These factors consist of the core elements of the competitiveness of the goods. Many embedded software have been used in the various sector. So the disputes regarding to the intellectual property rights is gradually increasing in number. Article 42 of CISG defines the seller's delivery obligations and liabilities in respect to third party intellectual property rights and claims. It contains a special rule for this similar kind of defective in title, which tries to provide an proper solution to the complex problems caused by such rights and claims in international transactions. When seller will apply this clause to the business fields, there are several points to which seller should give attention. First, Intellectual property is general terms in intangible property rights, encompassing both copyright and industrial property. Which matter fall within the scope of intellectual property? The scope of intellectual property can be inferred from the relevant international conventions, which are based on broad international consensus. Second, Article 42 of CISG governs the relationship between the seller and the buyer, that is to say, questions of who has to bear the risk of third party intellectual property rights. The existence of such intellectual property rights, the remedies available and the question of acquiring goods free of an encumbrances in good faith are outside the scope of the CISG. The governing law regarding to the abovementioned matters is needed.

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Improving Gas Barrier Property of Polymer Based Nanocomposites Using Layer by Layer Deposition Method for Hydrogen Tank Liner

  • Lee, Suyeon;Han, Hye Seong;Seong, Dong Gi
    • Composites Research
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    • v.35 no.3
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    • pp.121-126
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    • 2022
  • Owing to advantages of polymeric materials for hydrogen tank liner like light-weight property and high specific strength, polymer based composites have gained much attention. Despite of many benefits, polymeric materials for fuel cell tank cause problems which is critical to applications as low gas barrier property, and poor processability when adding fillers. For these reasons, improving gas barrier property of polymer composites is required to study for expanding application fields. This work presents impermeable polymer nanocomposites by introducing thin barrier coating using layer by layer (LBL) deposition method. Also, bi-layered and quad-layered nanocomposites were fabricated and compared for identifying relationship between deposition step and gas barrier property. Reduction in gas permeability was observed without interrupting mechanical property and processability. It is discussed that proper coating conditions were suggested when different coating materials and deposition steps were applied. We investigated morphology, gas barrier property and mechanical properties of fabricated nanocomposites by FE-SEM, Oxygen permeation analyzer, UTM, respectively. In addition, we revealed the mechanism of barrier performance of LBL coating using materials which have high aspect ratio.

An Empirical Study to Support Intellectual Property Strategy Planning in Firms : The Use of Intellectual Property Roadmap (지식재산 전략유형별 R&D 특성분석과 지식재산로드맵 활용방안)

  • Cho, Chanwoo;Lee, Sungjoo
    • Journal of Korean Institute of Industrial Engineers
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    • v.41 no.6
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    • pp.559-571
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    • 2015
  • To strengthen competences, most of firms have co-operated with external partners. This increases the possibility of unexpected conflicts between firms due to the intellectual property litigation. A suitable intellectual property strategy for firms has to be developed to settle this issue. This study aims to analyze an utilization of intellectual property strategy in firms, and tries to suggest a concept of IP roadmap to support intellectual property strategy planning aligned with technology planning process. For the purposes, we derive five types of intellectual property strategy of firms using Korea Innovation Survey. Then, we explore significant affecting factors using a decision-tree and conduct in-depth analysis for them. Lastly, we suggest a concept of IP roadmap, which can be a supporting tool for developing intellectual property strategy in firms, based on analysis results.

Creation Trend of Chinese IP(Intellectual Property) Film Works (중국 IP(Intellectual Property)영화 작품의 창작 트렌드)

  • Wei, Si-Yuan;Song, Seung-Keun
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.24 no.2
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    • pp.329-332
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    • 2020
  • Recently, IP (Intellectual Property) films have attracted much attention in the Chinese film market. This raises the need to take intellectual property films seriously in academic terms. The purpose of this study is to explore the effective methodology of content development based on intellectual property by analyzing the recent trend of Chinese intellectual property films. Recently, the driving force of the development of Chinese intellectual property films was analyzed, and the trend of Chinese intellectual property films was analyzed. The results of this study criticized the fragmented problems caused by the development of intellectual property films. This study made practical and academic suggestions to contribute to the healthy development of the intellectual property film market.