새로운 상호연결망 하프 버블정렬 그래프 설계 및 성질 분석

서정현,심현,이형옥,Seo, Jung-Hyun,Sim, Hyun,Lee, Hyeong Ok 한국정보통신학회 2017 한국정보통신학회논문지 Vol.21 No.7

버블정렬 그래프는 노드 대칭이며 데이터 정렬 알고리즘에 활용 할 수 있다. 본 연구에서는 버블정렬 그래프의 망 비용을 개선한 하프 버블정렬 그래프를 제안하고 분석한다. 하프 버블정렬 그래프 $HB_n$의 노드수는 n!이고 분지수는 ${\lfloor}n/2{\rfloor}+1$이다. 하프 버블정렬 그래프의 분지수는 버블정렬 그래프의 분지수의 $${\sim_=}0.5$$배 이고, 지름은 $${\sim_=}0.9$$배 이다. 버블정렬 그래프의 망 비용은 $${\sim_=}0.5n^3$$이고, 하프 버블정렬 그래프의 망 비용은 $${\sim_=}0.2n^3$$이다. 하프 버블정렬 그래프는 버블정렬 그래프의 서브 그래프임을 증명하였다. 추가로 라우팅 알고리즘을 제안하였고 지름을 분석하였다. 마지막으로 버블정렬 그래프와 망 비용을 비교 하였다. The Bubble sort graph is node symmetric, and can be used in the data sorting algorithm. In this research we propose and analyze that Half Bubble sort graph that improved the network cost of Bubble sort graph. The Half Bubble sort graph's number of node is n!, and its degree is ${\lfloor}n/2{\rfloor}+1$. The Half Bubble sort graph's degree is $${\sim_=}0.5$$ times of the Bubble sort, and diameter is $${\sim_=}0.9$$ times of the Bubble sort. The network cost of the Bubble sort graph is $${\sim_=}0.5n^3$$, and the network cost of the half Bubble sort graph is $${\sim_=}0.2n^3$$. We have proved that half bubble sort graph is a sub graph of the bubble sort graph. In addition, we proposed a routing algorithm and analyzed the diameter. Finally, network cost is compared with the bubble sort graph.

정상 관동맥을 가진 심장 점액종 환자에서 발생한 급성 심근 경색증 1예

이정민,이현승,전은정,윤호중,정욱성,오용석,김철민,김재형,최규보,홍순조,이교영,심상인 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.9

On the Strengthening Effects Affecting Tensile and Low Cycle Fatigue Properties of Low-Alloyed Seismic/Fire-Resistant Structural Steels

Jung‑Ho Sim,Tae‑Yeong Kim,Jun‑Yeon Kim,Chi‑Won Kim,Jun‑Ho Chung,Joonoh Moon,Chang‑Hoon Lee,Hyun‑Uk Hong 대한금속·재료학회 2022 METALS AND MATERIALS International Vol.28 No.2

In the present study, low carbon ferritic and bainitic steels with different contents of Mo, Ti, and Nb were designed for bothseismic and fire-resistant applications. The microstructure of steels containing 0.3 wt% Mo–0.02 wt% Nb (‘A’ hereinafter)was mainly composed of bainite. By contrast, the microstructure of steels with 0.2 wt% Mo–0.13 wt% Ti (‘B’ hereinafter)consisted of ferrite with a high density of nano-sized (Ti,Mo)-rich MX precipitates. The results showed that the bainiticmicrostructure (‘A’ steel) was quite favorable to high-temperature strength and thermal stability. The yield strength of ‘A’ steelat both room and 600 °C temperatures increased consistently with increasing thermal exposure time (600 °C/200–1000 h),since the precipitation of NbC particles occurred while maintaining bainitic ferrite platelets with a high density of dislocationsduring exposure. In the ‘B’ steel, the formation of nano-sized (Ti,Mo)-rich MX particles was effective to impededislocation movement, leading to excellent plasticity (lower yield ratio) at room temperature. However, their contributionto precipitation hardening was not so much at 600 °C, as compared to the bainitic strengthening. During low cycle fatiguetests at room temperature, the main different feature between the two steels is that the ‘A’ steel showed cyclic softeningwhile cyclic hardening was evident in the ‘B’ steel. The bainitic microstructure showed a better fatigue life due to increasedductility manifested by cyclic softening, by which dislocation cell was developed.

혈관과증식을 동반한 구개부 선방세포암의 치험례

김상중,심재환,박정훈,이원학,이정구 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.6

Vascular lesions of the oral and maxillofacial area is interesting to clinicians because it is difficult in management and has poor prognosis. There have been attempt to classify vascular lesion and recently new classification is introduced that have two basic entities, 1) hemangioma, 2) vascular malformation. It is useful that evaluation of lesion, treatment planning and predicting on prognosis. But vascular lesion is still difficult to clinicians about treatment. A case of acidic cell carcinoma combined with hypervascularity arising on the hard palate in a 28-year-old woman is reported. We mistook it for vascular lesion because of hypervascularity. The clinical and histologic feature are described. Literatures about neovascularization of tumor & acidic cell carcinoma are reviewd, too. And we attempt to solve the problem of hypervascularity.

농산물중의 잔류농약 실태에 관한 연구(Ⅰ) : 고체상 추출에 의한 농산물중 잔류농약 분석에 관한 연구 Analysis of Residual Pesticides in Agricultural Products by Solid-Phase Extraction

허옥순,이재관,이정성,서정혁,주인선,허수정,김세은,김정근,신영희,유미자,김지연,심규창,김성환 식품의약품안전청 1998 식품의약품안전청 연보 Vol.2 No.-

신속 · 정밀하고 효율적인 짠류농약 검출을 위하여 극싱칼럼 (Extrelut-3')을 사옹한 SPE법을 시도하였다. 시료는 채소류체 사용하는 농약중 잔류성이 있고 식품공전상 시험 전처리가 각각 다른 Chlorothalonil등 6종의 농약을 선정하고 그들 표준액에 대한 PPIR수준의 농도로추출용라의 종류 및 용매량 등의 추출조건을 달리하여 회수율 등을 측정한 결과 최적의 분석조건을 얻었다. 1) 추출 용매량은 증가할수록 추출 수율이 높았고,용매 종류에 대한 추출수율은 각 농약별로 다소 차이는 있었으나 극성 정도가 비교적 높은 Ethyl acetate애서 평균 추출수율이 가장 높았다 2) 최대 평균회수율은 Ethyl acetate 60mL를 사웅할 경우로서 93.6%였다. 3)표준액을 시료에 첨가한 시험에서도 역시 Ethyl ace늘to가 푼출수율이 가장 높았으며 불순물 분리제거 효과도 LLE법 보다 월등히 우수하였다. 4) 각 농약별 검출한계는 치소 0.001ppin으로 농산물 중 미량 잔류하는 농약을 검출할 수 있을 것으로 사료된파. 그러므로 SPE법은 LLE법보다 경제적인 방법으로 판명되었으며, 앞으로 농산물 중 잔류농약 분석에서 LEE법을 대치할 쑤 있을 것으로 기대된다. Solid-phase extraction by polar column(Extrelut-3') was attempted to develope the fast and efficient method of detecting pesticide of farm product.5·ix kinds of pesticide used in farming fieldfrequently and different in pretreatment, were chosen from Korea Food Cord. Optfmal analysis condi-tions were determiBed from t31e recovery rate of standard pesticides according to extraction solvent andextraction volurae. Extraction yietd was increased as solvent polarity and extraction volume. Maximumrecovery rate was acquired at 93.6% when 60mL of ethyl acetate was used as eluent. Tllis method wasmore effective than liquid-liquid partition extract·ion method to eliminated the impurity and had 0.001ppm of detection limit. Therefore. solid-phase eEl=raction was expected to be economical substitute fortraditional liquid-liquid extT·action method.

EU의 금융 통합에 관한 연구

沈相弼,李承洪,李楨烈,文善五 홍익대학교 1995 弘大論叢 Vol.27 No.-

Il 's agit d' une analyse succinte sur le syste´me mone´taire europe´en en place. Apre`s avoir etudie´ le me´canisme de ce que on appelle le "serpent mone´taire", nous avons e´largi nos e´tudes sur l' union e´conomique et mone´taire pour savoir si sa re´alisation serait possible. Le syste`me de l' ECU. comme moyen de paiement europe´en, et comme l' exemple de la future monnaie commune ou unique est analyse´ dans ses aspects divers. Pour conclure. nous avons analyse´ la situation actuelle, mone´taire et e´conomique afin de pouvoir pronostiquer sur l' avennir.

부산광역시의 대기질 변화경향 및 특성에 관한 연구

이화운,김유근,원경미,홍정혜,문윤섭,장난심,정우식 부산대학교 환경문제연구소 1997 環境硏究報 Vol.15 No.1

대장에 발생한 샘암종에서 MUC1과 MUC2 점소 발현의 의의

이윤경,이주호,이용,심재영,박정훈,오수섭,박진실,기근홍 朝鮮大學校 附設 醫學硏究所 2004 The Medical Journal of Chosun University Vol.29 No.2

Background : Mucins possess the unique function of protecting and lubricating the epithelial surface and other important functions such as call growth, direct implication in the fetal development, the epithelial renewal and differentiation, the epithelial integrity, carcinogenesis, immune regulation, cellular adhesion and metastasis. Purpose : This study was done to provide the significance of alteration of MUC1 and MUC2 expression in colorectal adenocarcinoma, A series of 131 colorectal adenocarcinomas including 11 mucinous carcinomas were screened immunohistochemically for their expression of MUCI and MUC2, Materials and mehtods : Of 131 carcinomas, 76 (58,5%) were MUCI positive and 91 (68, 9%) were MUC2 positive, In normal colonic goblet cells, MUCl was not expressed but MUC2 was expressed in cytoplasm, Conclusion There were up-regulation of MUCI and down-regulation of MUC2 in colorectal carcinomas, The frequency of MUC2 positivity according to differentiation was statistically reliable. (p=0.0001)

임상간호사의 간호유니폼에 대한 선호경향 및 만족도에 관한 연구

심순학,이정옥,박숙현 慶星大學校 1993 論文集 Vol.14 No.4

The purpose of this study was to investigate nurses' preference and satisfaction about nursing uniforms. 284 nurses responded to a questionnaire. Data were analyzed using frequency rate and chi-square test. The results indicated that nurses prefer two-piece or pants type to one-piece type uniform. They are satisfies with the color of present uniforms and shoes, which is white. They are not satisfied with material. They want new material which doesn't cause static electricity and which has good absorptiveness and ventilation. They prefer not to be restrained by rules about whether they wear caps or not.

민사집행법상 잠정처분(暫定處分)에 관한 연구

심정국,이상영 東國大學校 比較法文化硏究所 2005 比較法硏究 Vol.6 No.1

본고에서는 잠정처분의 절차와 집행방법 및 효력에 대한 일반적인 고찰을 한 다음, 잠정처분에 대한 문제점을 지적하면서 그 개선방안을 제시하고자 하였다. 즉 부동산인도명령사건을 심리함에 있어서는 집행법원의 강제조정절차제도를 도입할 필요가 있다고 보며, 법원의 잘못이 있는 경우 즉시항고시 잠정처분의 문제에 대하여는 무담보 내지는 민사집행법 제130조 제3항과 같은 공탁제도나 지급보증 위탁계약을 체결한 문서에 의한 담보제공을 할 수 있도록 해야 한다. 항고 기각시에도 기각이유에 채권자는 항고인에게 부당이득금을 반환하여야 할 것이라는 취지를 기재하여 항고인이 집행법원에 부당이득금반환청구소송을 제기하여 다른 일반사건보다 빠른 시일 내에 신속하게 권리구제를 받을 수 있도록 해야 한다. 또한 잠정처분의 법률체계에 대한 새로운 정립이 필요하며, 민사집행이 신속하고 정확하게 행해지고, 그밖에 집행과정에서 채무자의 인격이 무시되거나 회복할 수 없는 손해를 입는 사례가 없도록 법 집행이 조화롭게 이루어져야 할 것이다. Regarding the questionable matter and a provisional disposal process and the contents and an execution method and an effect of provision disposal it investigates generally from the research which it sees, the point regarding the point against a India order and the law system with the problem point against a provision disposal, the forced mediation process system of the execution court of justice at real estate India order event psychological hour it presents with that improvement point it introduces, The case which is mistake of the court of justice against the problem of complaint right time provisional disposal immediately the unsecured inland with civil affair execution law 130 3rd clause the possibility of doing the mortgage provision due to the document which contracts a same deposit system B payment guarantees trust contract in order to be, even at complaint rejection hour in rejection reason the creditor records the gist must return the undue profit gold in the complainant and the complainant proposes an undue profit gold returning requisition lawsuit in the execution court of justice and inside the time when it is quicker the general event than, it is quick and the possibility in order of receiving a right relief to be, it presents the improvement opinion, That also the law system triangular position of provision disposal is necessary, it sees, the civil affair execution law is quick, the personality of the execution which is accurate and the debtor bites but, is not an instance which sees the damage it will not be able to recover and it means the harmonize law execution must come to accomplish. In the future, it confronts to this field and more the research and investigation become accomplished and it becomes fixed they wish with the advanced nation leveling instrument civil affair execution law.