• 한국수학교육학회지시리즈E:수학교육논문집
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• 제6권
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• pp.371-381
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• 1997

Let p be an odd prime number. We introduce simple and useful decoding algorithm for orthogonal Latin square codes of order p. Let H be the parity check matrix of orthogonal Latin square code. For any x ${\in}$ GF(p)$^{n}$, we call xH$^{T}$ the syndrome of x. This method is based on the syndrome decoding for linear codes. In L$_{p}$, we need to find the first and the second coordinates of codeword in order to correct the errored received vector.

• 한국수학교육학회지시리즈A:수학교육
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• 제43권1호
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• pp.13-33
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• 2004

Many questions have been raised about mathematical education in vocational high schools. In this study, we have reorganized a typical mathematics textbook used in vocational high schools to check if this reorganization could be effective in students' learning. We also examined students'feeling about this. Contrary to our expectations, we could not find any noticeable differences in students' achievement. But we found that students with a high grade tend to major in mathematics- related subjects.

• 미생물과산업
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• 제17권1호
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• pp.2-9
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• 1991

All of four genes are cloned and DNA sequence analysis have now revealed that these four genes encode a family of proteins with similar amino acid sequence. These proteins show no extensive similarities to any known proteins (Haarer et al., 1991). Among them, CDC3 gene is fused with E. coli lacZ and trpE genes and antibodies against the CDC3 gene product are produced. These antibodies are used to check the localization of this product to the vicinity of the 10 -nm filaments in the mother-bud neck.

• 한국응급구조학회지
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• 제5권1호
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• pp.73-88
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• 2001

Post these safety tips in any swimming area for all swimmers to read. 1. Always swim with companions. Swim only in area well supervised by lifeguards. 2. Never drink alcohol or use drugs when you're swimming or boating. 3. Always check the water depth. Walk in from shore or ease in from the dock or the edge of the pool. 4. Know the limits of your own swimming abilities. If you're a good swimmer, don't tempt nonswimmers or beginner swimmers to try to keep up with you. 5. Keep any eye on younger swimmers at all times. 6. Learn the proper way to dive in the water safely. Follow guidelines for safe diving. 7. Follow the lifeguards instructions and respect their judgment. Never fake an Emergency. Obey all swimming rules.

• 한국중재학회지:중재연구
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• 제23권2호
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• pp.37-54
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• 2013

This article focuses on integrating institutional mediation systems, especially the analysis of the leading ADR operation. Mediation is a process in which an impartial third party, a mediator, facilitates the resolution of a dispute by promoting voluntary agreements by the parties to the dispute. A mediator facilitates communications, promotes understanding, focuses the parties on their interests, and seeks agreement. These standards give meaning to this definition of mediation. Standard mediation clauses are construed as broadly as possible, and mediation is compelled unless it may be said with positive assurance that the mediation process is not susceptible to an interpretation that covers the asserted dispute. Performing the conflicts check early in the process helps in eliminating any awkwardness or delays caused by making disclosures after mediation commences. Mediator impartiality is central to the mediation process. A mediator should mediate only those matters in which she or he can remain impartial and evenhanded. If at any time the mediator is unable to conduct the process in an impartial manner, the mediator is obligated to withdraw.

• Imaging Science in Dentistry
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• 제51권3호
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• pp.333-336
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• 2021

Rhinoliths are foreign bodies composed of mineralised deposits in the nasal cavity that are rarely encountered in routine dental practice. The current report presents a case of a 77-year-old female patient who visited a dental treatment centre for a routine dental check-up and prophylaxis. On the clinical examination, the patient did not report any breathing difficulty, nasal obstruction, or any form of discharge. Panoramic radiography showed a horizontally magnified radiopaque structure in the right nasal fossa region. Cone-beam computed tomography (CBCT) revealed a hyperdense entity with a laminated presentation in the right nasal fossa. The hyperdense entity was diagnosed as a rhinolith based on the radiographic findings. Although the patient was asymptomatic, a referral was made to an ear, nose, and throat surgeon for a further evaluation. This report highlights the importance of CBCT imaging in the diagnosis of soft-tissue calcifications.

• Journal of Communications and Networks
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• 제10권1호
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• pp.5-9
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• 2008

Researchers have investigated many upper bound techniques applicable to error probabilities on the maximum likelihood (ML) decoding performance of turbo-like codes and low density parity check (LDPC) codes in recent years for a long codeword block size. This is because it is trivial for a short codeword block size. Previous research efforts, such as the simple bound technique [20] recently proposed, developed upper bounds for LDPC codes and turbo-like codes using ensemble codes or the uniformly interleaved assumption. This assumption bounds the performance averaged over all ensemble codes or all interleavers. Another previous research effort [21] obtained the upper bound of turbo-like code with a particular interleaver using a truncated union bound which requires information of the minimum Hamming distance and the number of codewords with the minimum Hamming distance. However, it gives the reliable bound only in the region of the error floor where the minimum Hamming distance is dominant, i.e., in the region of high signal-to-noise ratios. Therefore, currently an upper bound on ML decoding performance for turbo-like code with a particular interleaver and LDPC code with a particular parity check matrix cannot be calculated because of heavy complexity so that only average bounds for ensemble codes can be obtained using a uniform interleaver assumption. In this paper, we propose a new bound technique on ML decoding performance for turbo-like code with a particular interleaver and LDPC code with a particular parity check matrix using ML estimated weight distributions and we also show that the practical iterative decoding performance is approximately suboptimal in ML sense because the simulation performance of iterative decoding is worse than the proposed upper bound and no wonder, even worse than ML decoding performance. In order to show this point, we compare the simulation results with the proposed upper bound and previous bounds. The proposed bound technique is based on the simple bound with an approximate weight distribution including several exact smallest distance terms, not with the ensemble distribution or the uniform interleaver assumption. This technique also shows a tighter upper bound than any other previous bound techniques for turbo-like code with a particular interleaver and LDPC code with a particular parity check matrix.

• 무역상무연구
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• 제59권
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• pp.3-26
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• 2013

The purpose of this paper is to examine the several points at issue in international technology transfer contract from licensor's and licensee's perspectives, and to refer them when the licensor and the licensee draw up the contract. This author analyzed the critical points of the related provisions of ICC Model International Technology Transfer Contract(2009) by citing the explanations of the Introduction of the Model Contract. The provisions of the Model Contract are generally divided into two categolies; specific conditions and general conditions. This author selected four topics in the specific conditions; Contents of the Contract, Royalty, Modification and/or Improvements of Products, and Territory and Competition. Likewise this author selected three topics in the general conditions; Resolutions of Disputes, Applicable Law and Taxes. Both parties need to be mindful of the following points in the above topics, when they draw up the contract. First, both parties should make the definitions of special terminologies clear, which are included in the Contract. Second, before the parties sign the Contract, they should check any approvals to be necessary by the both countries' governments. Third, for the calculation of the royalty, they should clear the criteria, the scope, and the object. Fourth, as the local laws or regional laws regarding the territory limitation and taxation are mandatory, any provisions of the Contract should not be inconsistent with them. Therefore, both parties should check before-hand the local laws or rules related with the provisions of the Contract. Fifth, when the parties draw up the Contract, they should examine the Provisions of Dispute Resolution in consideration of the Governing Law. Thus both parties decide to make the technology transfer contract, the three aspects namely profitability, legal conflict with mandatory rules, and sustainability of the business resulting from the Contract should be examined in advance, and then proceed the business using the technology transfer.

• 시큐리티연구
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• 제14호
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• pp.109-123
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• 2007

대중교통수단에 대한 테러는 운송수단을 대상으로 한 테러유형 중의 하나이지만, 항공기나 선박과는 달리 인질협상을 하는 사례는 거의 발견할 수 없고 무차별 공격을 가하기 때문에 인명피해가 매우 크다. 그러므로 더욱 철저한 대비가 필요함에도 불구하고 항공기에 비해 방어기제는 거의 마련되어 있지 않은 실정이며, 시민의 입장에서도 열차나 버스 등을 이용할 때 테러에 대한 대응태세는 전무한 상태여서 문제가 매우 심각하다. 그렇기 때문에 이러한 대중육상교통수단에 대한 테러를 예방하기 위해서는 KTX 등 열차탑승자의 신원확인과 수화물 검색을 실시해야 한다. 또한 열차보안요원의 대테러 능력 강화, 시민의 대테러 훈련 정례화, 시설물의 철저한 점검, 사회적 안전망 확충등이 시급히 이루어져야 한다. 모든 테러는 우리가 자주 이용하는 시설이나 수단을 대상으로 삼기에 평상시에 철저히 점검하고 대비하는 자세가 테러를 방지하는 가장 확실하고 안전한 대응방안이 될 것이다.

• 자원환경지질
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• 제18권2호
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• pp.177-184
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• 1985

The carbonate flat pebble conglomerates (CFPC) are interbedded as lenticular bed in the greenish rhythmite of the upper part of $Hwaj{\check{o}}l$ Formation, $Jos{\check{o}}n$ Supergroup. Pebbles are composed mainly of lime-mudstone with small amounts of bioclasts and silt-sized subangular quartz grains. The matrix among pebbles is composed mainly of sparry calcite with relatively much amounts of bioclasts, silt-sized subangular quartz grains and authigenic pyrite crystals or grains. The sparry calcite of the matrix seems to be the results of neomorphism of skeletal sands and bioclasts. The pebbles are well rounded and no plastic deformations are found. Some pebbles show the outer rim of glauconite. CFPC are not associated with any other intertidal features such as stromatolites, flaser bedding and channel structures. Also any features indicative of subaerial exposure such as dessication cracks, fenestrae and so on are not found in the bed. The sedimentological features of CFPC suggest that the following conditions appear to have been necessary for the formation of CFPC : 1) episodic deposition of thin, permeable calcareous beds separated argillaceous beds; 2) preservation of these beds near the sediment-water interface where they could become rapidly cemented; 3) erosion and redeposition of the partially lithified beds by storms or other exceptional erosional events. Eventually storm erosion and redeposition together represent only one of several critical conditions in the genesis of CFPC. The CFPC are very common in Cambrian and lower Ordovician formations, and become very rare in the younger carbonate formations. The expansion of infauna after Ordovician Period eliminated the widespread potential for rapid submarine cementation which is one of the critical factors to form CFPC.