• 대한전기학회:학술대회논문집
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• 대한전기학회 1988년도 전기.전자공학 학술대회 논문집
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• pp.165-167
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• 1988

In this paper, the design of decoder for R-S code using discrete finite-field Fourier transform is presented. An important ingredient of this design is a modified Euclid algorithm for computing the error-locator polynomial. The computation of inverse elements is completely avoided in this modification of Euclid algorithm. This decoder is regular and simple, and naturally suitable for VLSI implementation.

• 호남수학학술지
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• 제40권4호
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• pp.661-669
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• 2018

In this paper, we introduce and study the notion of a pseudonorm on a generalized group. Let G be a topological generalized group and let the family $\{G_x\}_{x{\in}e(G)}$ be locally finite. Then, we show that G is completely regular. Also, some well known results are generalized.

• 대한수학회논문집
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• 제37권3호
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• pp.905-913
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• 2022

We characterize metrizability and submetrizability for point-open, open-point and bi-point-open topologies on C(X, Y), where C(X, Y) denotes the set of all continuous functions from space X to Y ; X is a completely regular space and Y is a locally convex space.

• 한국의류학회지
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• 제30권6호
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• pp.948-960
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• 2006

Chogakpos are highly artistic works created by Korean women as a part of the Kyubang culture in the Chosun Dynasty from the late 19th century to the early 20th. Tessellation is a plaid pattern composed of squares that covers a surface or a space with figures completely without any gap or overlap. The present study purposed to make a comparative analysis of the formative pattern of Chogakp and tessellation in order to show the superiority of Korean Kyubang(the women's quarters called Kyubang in the Chosun Dynasty) culture. As for the research method, we analyzed relevant materials to examine the geometric characteristics and formative principles of tessellation. In addition, we analyzed the formative pattern of Chogakpo using Photographs. The scope of this study was limited to 148 old Chogakpos contained in Huh Dong-hwa's 'Yetpojagi'. According to the results of this research, similarities between Chogakpo and tessellation were as follows. First, in a regular polygon, the face was divided into regular triangles, squares and two or more regular polygons. Second, in a polygon, the face was divided into triangles and quadrangles. Third, the symmetry of tessellation was applied to Cintamani pattern Pojagi. Differences between Chogakpo and tessellation were as follows. First, different from Chogakpo, tessellation had various formative patterns utilizing different regular polygons including hexagons. Second, there was no overlapping repetition in tessellation. Third, there was no free pattern in tessellation.

• 한국항해항만학회지
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• 제42권2호
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• pp.127-136
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• 2018

The motion response of floating structures is of significant concern in marine engineering. Floating structures can be disturbed by waves, winds, and currents that create undesirable motions of the vessel, therefore causing challenges to its operation. For a floating structure, mooring lines are provided in order to maintain its position; these should also produce a restoring force when the vessel is displaced. Therefore, it is important to investigate the tension of mooring lines and the motion responses of a twin barge when moored to guarantee the safety of the barge during its operation. It is essential to precisely identify the characteristics of the motion responses of a moored barge under different loading conditions. In this study, the motion responses of a moored twin barge were measured in regular waves of seven different wave directions. The experiment was performed with regular waves with different wavelengths and wave directions in order to estimate the twin-barge motions and the tension of the mooring line. In addition, the motion components of roll, pitch, and heave are completely free. In contrast, the surge, sway, and yaw components are fixed. In the succeeding step, a time-domain analysis is carried out in order to obtain the responses of the structure when moored. As a result, the Response Amplitude Operator (RAO) motion value was estimated for different wave directions. The results of the experiment show that the motion components of the twin barge have a significant effect on the tension of the mooring lines.

• 한국가금학회지
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• 제11권1호
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• pp.33-39
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• 1984

The pattern of economic integration in the broiler industry can be grouped into three categories; 1) non-integration, 2) quasi-integration and 3) complete-integration. It is general to see that the non-integration is quite common under the market conditions of perfect competition, whereas the complete integration is more preferable in the imperfect competition. The quasi-integration, however, exists at all phases where the complete integration is not fully formed and implemented, but the non-integration has begun to alter its nature into integrated structure. The broiler industry in Korea has been characterized with the typically non-integrated independent operation, resulting in considerable price fluctuation and unstable industry as a whole. As a means of solving out the problem stemed from the non-integrated, growers and agribusinessmen involved in broiler industry have tended to develope the regular customer relationship prevailed between two parties. In fact, it has been practiced for years that most growers have been dealt with factor suppliers or processors on a regular basis for advantages of better price and quality, useful information, management help and so forth. Under the customary transaction, no formal contract has been made due to simple buyers and sellers relations, not like the one used to be performed in the form of contractual agreement. The broiler industry realizes the direction to go ahead toward the formal arrangement of integrated system from current regular transactions. As more Vowers, suppliers and processors recognize the necessity of it, the non-integrated industry appears to become the partially integrated by developing the existing customer relationship in such a way that functions of integrators are. further expanded and better organized. As a result, a type of quasi-integration started to show up by an integrator dominated in the field of hatching, feedmilling, dressing and by a grower's coop, It is concluded, therefore, that the evolution of quasi-integration in Korea's broiler industry is continuously taking place, implying the close approach to the completely integrated broiler production and marketing system.

• 한국화재소방학회논문지
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• 제23권4호
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• pp.154-164
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• 2009

우리나라 광역자치단체는 1990년대 이후에 복합재난발생, 소방업무의 중요성 등으로 자연재난관리 및 인적재난관리 업무를 담당하는 조직을 소방본부로의 완전통합 및 부분통합시키고 있는 현실이다. 따라서 재난관리업무를 담당하는 소방직과 일반직공무원간의 관계는 더욱 중요해지고 있다. 이에 본 연구에서는 재난관리조직의 관리역량, 인명활동, 재난, 업무효율 등에 대한 설문지를 구성하여 서울특별시 재난관리조직에서 근무하는 공무원을 대상으로 설문조사를 실시하여 소방직과 일반직공무원간의 인식비교분석을 하였다. 인식비교분석결과 관리역량의 시설, 재난의 인적재난, 업무효율의 업무협조성, 업무연계성 등이 유의미한 차이가 발생하였다. 이러한 인식비교분석을 통하여 서울특별시 재난관리조직의 개선방향에 대해서 제시하고자 하였다.

• 전기학회논문지
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• 제57권6호
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• pp.1069-1074
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• 2008

This paper presents an efficient architecture for $2^n$-point DCT algorithm. The proposed approach makes use of the fact that, in most DCT applications, the scaling operation in the DCT unit can be eliminated and combined with the scaling operation in the quantizer unit. This important property is efficiently exploited with the CORDIC(COordinate Rotation DIgital Computer) algorithm to produce a regular architecture suitable for VLSI implementation. Although there have been several attempts to exploit CORDIC algorithm in developing DCT architectures, the proposed approach provides the most efficient way for scaled DCT applications by completely eliminating the scale factor compensation.

• 충청수학회지
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• 제27권2호
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• pp.211-218
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• 2014

In 3-dimensional Euclidean space, the geometric figures of a regular curve are completely determined by the curvature function and the torsion function of the curve, and surfaces are the fundamental curved spaces for pioneering study in modern geometry as well as in classical differential geometry. In this paper, we define parametrizations for surface by using parametric functions whose images are in the normal plane of each point on a given curve, and then obtain some results relating the Gaussian curvature of the surface with curvature and torsion of the given curve. In particular, we find some conditions for the surface to have either nonpositive Gaussian curvature or nonnegative Gaussian curvature.

• 한국수학사학회지
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• 제17권2호
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• pp.73-84
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• 2004

스톤은 스톤 쌍대성에 의하여 완비 불 대수는 극단적으로 비연결인 콤팩트 하우스도르프 공간에 대응되어 불 대수의 범주 Bool에서 단사 대상은 완비 불 대수인 사실에 의하여 0차원 콤팩트 공간의 범주 ZComp의 사영 대상은 극단적으로 비연결인 콤팩트 공간임을 증명하였고, 완전 정규 공간 X가 극단적인 비연결 공간이기 위한 필요충분조건은 X에서 실직선로의 연속함수의 순서집합 C(X, )이 데데킨트 완비인 사실[6]이 드모르간 틀에서도 성립함을 증명하였다[2]. 이 논문에서는 드 모르간의 역사를 조사하고, 드모르간 틀을 도입하여 극단적인 비연결 공간과의 관계와 드 모르간 틀과 불 대수 사이의 관계를 연구한다.