아시아 共同市場 構成을 爲하여 : 아시아 공동시장 구성을 위하여

오세창 釜山大學校 商科大學 1968 釜山商大學報 : 부산대 Vol.14 No.1

오세창 교수 보고에 대한 토의

오세창,曺賢正 (사회자),李源根 (토론자) 啓明大學校産業經營硏究所 2004 啓明大學校ㆍ挑山學院大學國際學術세미나 Vol.2004 No.10

모의 사격 시스템에서 레이저 빔 인식을 위한 영상처리 기법

오세창,한동일,Oh, Se-Chang,Han, Dong-Il 한국정보통신학회 2009 한국정보통신학회논문지 Vol.13 No.3

모의 사격 시스템은 군사 훈련에 드는 많은 비용과 시간을 줄일 수 있음은 물론이고 사고의 위험을 배제할 수 있다. 특히 레이저를 이용한 모의 사격 시스템은 실탄을 사용한 훈련과 거의 유사한 환경을 제공할 수 있다는 장점을 가지고 있다. 그러나 이러한 시스템을 구현하기 위해서는 레이저빔을 인식하기 위한 효과적인 영상처리기법의 개발이 필요하다. 본 연구에서 제안하는 방법은 인접한 두 영상에서 차 영상을 구하고 이 차 영상에서 빔을 배경과 구분하기 위해서 쓰레쉬홀딩 방법을 적용하였다. 이때 쓰레쉬홀드 값은 배경을 이루는 점들의 밝기 분포가 정규분포를 이룬다는 가정 하에 결정한다. 이 결과에 잡음제거와 영역분리 과정을 거쳐서 빔의 영역을 정한다. 이 영상처리 방법의 계산 복잡도는 영상의 크기와 잡음제거를 위해 사용한 마스크의 크기를 곱한 값에 비례한다. 실험에서 제안한 방법은 93.3%의 정확도를 보였다. 또한 부정확한 결과가 나오는 경우에도 항상 빔을 포함하여 영역을 잡는 것을 확인할 수 있었다. Shooting simulation systems not only reduce a great amount of expense and time for military exercises but also prevent accidents. In particular, the shooting simulation systems using laser beam have an advantage which is very similar to the shooting exercise that uses real bullets. However, real time technique for laser beam recognition in a target image is necessary. The method proposed in this paper takes a difference image from two adjacent image frames. Then a thresholding is applied on this difference image to discriminate laser beam from background. To decide the threshold value the intensity distribution of background points is modeled assuming normal distribution. Then a noise reduction and a region segmentation are applied on the binary image to find the position of a laser beam. The time complexity of this process depends on the size of an image multiplied by the size of a mask used in the noise reduction process. The experimental result showed that the accuracy of the system was 93.3%. Even in the inaccurate cases the beam was always found in the resultant region.

배송중심지의 위치선정을 위한 연구

오세창 대한교통학회 1998 대한교통학회지 Vol.16 No.4

국가 경쟁력 강화 측면에서 물류의 효율성 증대는 많은 관심의 대상이 되고 있으며, 따라서 물류시설의 입지를 결정하는 문제는 매우 중요하다. 그 중에서도 배송중심지는 물류비절감 차원 뿐만 아니라 물류 서비스의 향상차원에서 관심이 증대되고 있다. 따라서 본 연구에서는 물류시설의 위치결정을 위하여 평균거리 최소화문제(median problam)와 최대통행거리 최소화문제(center problem)를 결합한 이진정수계획모형을 제시하였으며, 또한 개발된 모형은 수요의 형태가 상이한 4가지 유형의 망(network)상에서 2개 및 3개의 배송중심지를 설치하는 문제에 적용되었다.

인장 및 압축부재와 적층수(積層數)가 프라타너스 집성재의 휨성질에 미치는 영향

오세창,이필우 한국목재공학회 1986 목재공학 Vol.14 No.2

The aim of this study is to determine the flexural properties(Modulus of Rupture, Modulus of Elasticity) of Platanus occidentalis L. laminated beams fabricated with 1, 3, 5, 8, 15 lamination and Tension, Compression lamination. The results were as follows: 1. MOR increased with increasing number of lamination in 3, 5, 8, 15-beam and Tension lamination beam. MOR of Compression lamination beam was lower than that of 3-beam, MOR of vertical beam not having tension or compression lamination was lower than that of horizontal beam, but MOR of vertical beam with tension or compression lamination was same or slightly higher than that of horizontal beam. 2. The allowable working stress showed the same tendency. This stress increased with increasing number of lamination. This value of Tension lamination beam was higher than that of compression lamination beam. 3. MOE of all laminated beams was higher than that of solid beam and Tension lamination beam was higher than that of 3-beam. MOE of Tension lamination beam was higher than that of Compression lamination beam. MOE of al1 vertical beam was higher than that of horizontal beam except for T-2, T-5, C-3. 4. Most beam failures appeared to begin in tension. These tension failures were classified into Splintering tension, Cross-grained tension, Simple tension, Brittle tension. All test beam failures could be classified into three categories. 1) Tension failure 2) Compression failure 3) Horizontal shear failure.

조헌(趙憲)의 사회경제사상

오세창 대구사학회 1973 대구사학 Vol.7,8 No.1

Experimental Study of Bending and Bearing Strength of Parallel Strand Lumber (PSL) from Japanese Larch Veneer Strand

오세창 한국목재공학회 2022 목재공학 Vol.50 No.4

This study examined the structural performance of experimental parallel strand lumber (PSL) from a Larch veneer strand. The prototype of PSL from a Larch veneer strand was manufactured in the experimental laboratory and tested. The bending and dowel bearing strength were determined from the modulus of elasticity (MOE), modulus of rupture (MOR), and dowel bearing strength based on a 5% offset yield load. The test results indicated that the average MOR of PSL was higher than that of 2 × 4 dimension lumber, and the average MOE of PSL was lower than that of 2 × 4 dimension lumber. A linear relationship was observed between the MOR and MOE. The allowable bending stress of PSL was derived as specified in ASTM D2915 and compared with other research. The dowel bearing strength of PSL in parallel to the grain was approximately double that perpendicular to the grain of PSL. A comparison of several theoretical calculations based on each national code for the dowel bearing strength was conducted, and some theoretical equations produced results closer to the experimental results when it was parallel to the grain, but the difference was higher in the case perpendicular to the grain. The test results showed that PSL made with Japanese larch veneer strands appeared to be suitable for a raw material of structural composite lumber (SCL) appeared to be used as a raw material for SCL.

URC <Uniform Rules for Collection>에 관한 硏究 : 商業어음 推尋을 中心으로

吳世昌 啓明大學校 産業經營硏究所 1985 經營經濟 Vol.18 No.1

The purpose of this thesis is to contribute to the understanding of the problems occuring in commercial paper collection. The scope and method of research of this study are mainly to review, analyze the various factors within international and domestic trade regulations, as well as theory, customs practices and precedents which have an effect on commercial paper collection Commercial paper is used to facilitate bsuiness tranctions, as a substitute for the payment of money directly, and affords to the debtor an extension of time for its actual payment while offering certain protections and safeguards to all parties involved. Basically, commercial paper includes negotiable and non-negotiable promissory notes and negotiable and non-negotiable drafts. The distinction between a promissory note and a draft is inherent in its form and its execution. Commercial paper falls into two categories. Order paper is created when the note or draft is made payable to a named pavee or “his order”or “to the order of (payee).” Bearer paper results when the note or draft is payable “to bearer”or “to cash.” Types of endorsement are a blank endorsement, a special endorsement, a restrictive endorsement, a qualified endorsement. Discharge of all parties to commercial paper is usually accomplished by payment of the amount due by the primary obligor to the holder in due course and its surrender by him. This completes the circle of the entire tranction; delivery of the negotiable instrument by the primary debtor to the payee; the transfer and endorsement by the payee to his creditor in satisfaction of a debt; the subsequent transfer by debtor-endorser to creditor-endorsee, and finally to the holder prior to the date of maturity who qualifies as a holder-in-due course. The confontation occurs when the holder in due course having in turn given valuable consideration for it, now wants to collect. If he is paid by the primary debtor on the instrument, then all parties are satisfied. Banks will act in good faith and exercise reasonable care. Therefore, banks must verify that the documents received appear to be as listed in the collection order and must immediately advise the party from whom the collection order was received of any documents missing. The presenting bank is reponsible for seeing that the form of the acceptance of a bill of exchange appers to be complete and correct, but is not responsible for the genuiness of any signature or for the authority of any signatory to sign the acceptance In the case of documenst payable in the currency of payment (local currency), the presenting bank must, unless otherwise instructed in the collection order, only release the documents to the drawee against payment in local currency which is immediately available for disposal in the manner specified in the collection order.

在滿韓人의 社會的 實態 (1910~1930) : 中國의 對韓人 政策을 中心으로

吳世昌 백산학회 1970 白山學報 Vol.- No.9

It may be proper and correct to view and study the closeness of Manchuria and Korea in their historical relationship rather in their geographical adjacency. Manchuria, where once Koreans had established Puyo(扶餘), Kokuryo(高句麗) and Pal-hae(渤海) dynasties to ultimately rule over North East Asia, not only opened an exit for the oppressed Koreans to seek for a new way of life therein after the Japanese occupation of Korea but also rendered a base whereby to start their movement for national independence. Immigration of Koreans into Manchuria was accompanied by various ordeals and difficulties. It was because of the peculiar political situation of Manchuria that had been placed under the sovereignty of China proper and yet stood independent of the mainland. No remarkable political problems had been noted until 1910. Subsequent to Kanto Agreement(間島協約) in 1909 and Man Manchuria-Mongolia Treaty(滿蒙條約) in 1915, Chinese attitude toward Koreans in Manchuria changed from acquiescent indifference to oppression and, further, to expulsion. It can not be negated that the traditional Chinese contempt of other races had been noted ever since the initial stage of migration of the Koreans. However, the sudden increase of Koreans in Manchuria apparently provoked the racial antagonisim to make them change their attitude. Since Chinese regarded Kanto Agreement as Japanese territorial invasion of Manchuria and Manchuria-Mongolia Treaty as an outright invasion, whereby Japanese obtained lease on lands and the right to freedom of contracts, they treated Koreans with the same hostility to the Japancse since 1910, which marked the year of change in Korean status into the “Subjects of the Japanese Emperor” and later called the Koreans in Manchuria the vanguard of Japanese invasion. This attitude of the Chinese was also closely linked with the “Movement for Recovery of Lost Sovereignty in China proper. The Miya Agreement(三矢協定) in 1925 had ironically rendered the Chinese in Manchuria an opportunity to decisively expell Koreans from Manchuria. Based on this agreement, innumerable laws and decrees aimed at expelling Koreans were issued and immediately put into effect in every province to total in number sixty six between 1925 and 1927. This was the period of hardship for Koreans in Manchuria. The cases of the oppression of the Koreans in 1925 totalled thirty, but they reached the peak in 1927 to total 197 cases, 6ㆍ5 times ever 1925, and the oppression itself varied widely in its forms ranging from forced nationalization, restriction in residence, severe terms, unequal opportunities of education, unaccountable taxation and penalties. This opporession of Koreans in 1927 may be attributed to political, economical, and social chaos in Manchura then the emergence of military clans which automatically required necessary military funds, the unprecedented drop in value of currency including Bong-pyo(奉票: legal tender), etc. had directly or indirectly affected Koreans’ life in Manchuria. To aggravate the matter, rampant plundering by Chinese officials taking advantage of the chaotic situation added to the “Korean expulsion policy” to make the Koreans’ life in Manchuria more unbearable. In conclusion, the Koreans in Manchuria were pressed from both sides, that is, by the constant political oppression and surveillance by the Japanese on one side and the greater economical oppression by the Manchurians on the other.

모의 사격을 위한 영상처리 시스템의 개발

오세창,최민 한국지능정보시스템학회 2010 한국지능정보시스템학회 학술대회논문집 Vol.2010 No.4