해도 정보를 이용한 선박의 최적 항로 생성

김민규(Min-Kyu Kim),김종화(Jong-Hwa Kim),양현(Hyun Yang) 한국항해항만학회 2022 한국항해항만학회 학술대회논문집 Vol.2022 No.2

Min-Kyu Kim*․Jong-Hwa Kim**․†최근 자율 운항 선박에 대한 관심이 높아지고 있다. 특히, MUNIN (Maritime Unmanned Navigation through Intelligence in Networks) 프로젝트를 계기로 자율 운항 선박에 대한 개발과 연구가 활발히 진행되고 있다. 또한 국제해사기구 IMO는 자율 운항 선박 시대에대응하기 위해 자율 선박을 MASS (Maritime Autonomous Surface Ship)라 정의하고 선박 자율화 정도에 따라 4단계 등급을 제시하고 있다. 완전한 자율 운항 선박에 대한 요구조건을 만족하기 위해서는 항로 결정과 제어기술이 필수적이다. 본 연구에서는 여러 가지 기술 중 선박의최적경로를 생성하는 기법을 다룬다. 기존에 최적항로를 생성하기 위한 방법으로는   , Dijkstra와 같은 알고리즘들이 주로 사용되었다. 그러나 이와 같은 알고리즘은 섬이나 육지에 대한 충돌 회피는 고려하고 있지만 수심 및 연안 선박에 대한 규정들은 고려하지 않고 있어실제로 적용하기에는 한계점이 있다. 따라서 본 연구에서는 안전을 위해 선박의 선저 여유 수심과, 해도에 규정되어 있는 선박 운항에 대한여러 규정들을 반영하여 최적 항로를 생성하고자 한다. 최적 항로를 생성하기 위한 알고리즘으로는 강화학습 기반의 Q-learning 알고리즘을적용하였다.

Fault Tolerant System에서의 에러 검출기 설계

김현주,최진규,김현욱,김영천 明知大學校 産業技術硏究所 1991 産業技術硏究所論文集 Vol.10 No.-

It is important to detect and correct errors in the modern digital system. In this paper, we have designed error detector and corrector in the fault tolerant system. Error detector/corrector consists of data latch, syndrome generator, parity generator, parity checker, syndrome and error detection part and error correction part. In addition, error detectro/corrector have a latch over the data and check bit in order to synchronize system. The operation of error detector/corrector has been checked through the logic simulation.

위발성 위장관 악성림프종 환자에서 항암치료의 효과

김찬규,신영록,김현정,배상병,이남수,이규택,박성규,원종호,홍대식,박희숙 순천향대학교 2006 Journal of Soonchunhyang Medical Science Vol.12 No.1

Purpose: The gastrointestinal (GI) tract is the most common site of extranodal non-Hodgkin's lymphoma (NHL), which is increasing in incidence, but there is no established optimal treatment modality. Thus, this study was investigated the clinicohistologic feature, the therapeutic modalities, and the prognosis for GI-NHL, as well as the factors affecting it. Methods: We retrospectively analyzed 45 patients who had been diagnosed as having GI-NHL and had been followed up from July 1994 to February 2005 at Soonchunhyang University Hospital. The patients were divided into groups according to the site of origin and to various other features, and the survivals of the various groups were compared. The modified Ann Arbor system and WHO classification were adopted for staging and histopathologic classification, respectively. Results: GI-NHL of the stomach, small bowel, ileocecal region, and colon occurred in 28 patients (62.2%), 5 patients (11.1%), 3 patients (6.7%), and 8 patients (17.8%), respectively, In one patient, the entire gastrointestinal tract was diffusely involved. The median age of patients was b5 years (25~78 years), and male-to-female ratio was 1:1.1. Fourteen patients were in stage Ⅰ, 24 in stage Ⅱ, 4 in stage Ⅲ, and 3 in stage Ⅳ. Surgical resection was performed in 19 patients, and combination chemotherapy was performed in 43 patients. Surgical resection only was performed in 4 patients, Chemotherapy only was performed in 26 patients. The expected overall 5 year survival of 45 patients was 39.6%, and there was a significant survival difference between the stages, but between sites of origin (p=0.842). The most important factors influencing the survival was the stage and other factors were not significant. Conclusion: The stomach was the most common site of GI-NHL. Most GI-NHL were localized Stage was the most important prognostic factor. However, Prospective randomized studies are needed to approve the therapeutic modality.

Formulation Sequence in Korean TV Talk Shows : Pre-Sequence as Consensual Grounds for Managing Category Work

김규현(Kyu-hyun Kim),서경희(Kyung-Hee Suh) 한국사회언어학회 2018 사회언어학 Vol.26 No.2

Kim, Kyu-hyun & Suh, Kyung-Hee. 2018. “Formulation Sequence in Korean TV Talk Shows: Pre-Sequence as Consensual Grounds for Managing Category Work”. The Sociolinguistic Journal of Korea 26(2). 85~117. From the perspectives of conversation analysis (CA) and membership categorization analysis (MCA), this paper analyzes the formulation sequence in Korean television news interviews and celebrity talk-shows. The analysis shows that the host s formulation is normatively oriented to by the guest as a preliminary action, which projects a range of face-impinging actions, such as challenge, assessment, request, etc. The formulation-confirmation sequence furnishes the host with consensual grounds for embarking on affectively-loaded assessment activities vis-à-vis the guest in his/her own terms. The guest, as the formulation-recipient, may block the host s projected action by using disconfirmation, which points to the contingent nature of the power that the host exercises as the agent of morality. The analysis of the formulation sequence is brought to bear upon the examination of the compositional features of the formulation turn (e.g., sentence-ending suffixes, discourse particle, etc.) and their interactional imports.

Topic Marker -Nun as an Exploratory Device : Shifting Domains for Stance Management in Pursuit of Intersubjectivity

Kim, Kyu-hyun 한국사회언어학회 2017 사회언어학 Vol.25 No.2

Kim, Kyu-hyun. 2017. “Topic Marker -Nun as an Exploratory Device: Shifting Domains for Stance Management in Pursuit of Intersubjectivity“. The Sociolinguistic Journal of Korea 25(2), 29~72. From the conversation-analytic perspective, this paper investigates the interactional import of - nun used in assessment activities. The analysis of naturally-occurring interactions suggests that the domain-shifting function of - nun is closely attuned to shifting, or even reversing, the valence of the speaker s evaluative stance in a way that invokes a hitherto unmentioned domain as grounds for soliciting the interlocutor s agreement/affiliation, expressing partial agreement, or marking oblique disagreement. Often formulated as an overstatement to be retracted and/or as a move to solicit the interlocutor s collaborative uptake through claiming knowledge (or lack thereof), the nun- utterance furnishes the speaker with a resource for obliquely implementing face-threatening actions, pursuing common ground, or upgrading affect. Embodying the speaker s ‘exploratory’ stance, the use of - nun conveys the sense that the speaker is going beyond the ‘appearance’ of the matter at hand (e.g., a sub-domain from which a new generic feature may be drawn and attributed to the referent). This practice, which is further supported by the nun- marked adverbials formulated as a ‘logical guidepost expression’, provides for the basis on which the speaker organizes assessment activities in an other-attentive way, e.g., through upgrading affiliation and downgrading disaffiliation vis-à-vis the interlocutor s prior action, while sustaining his/her baseline stance and epistemic independency.

생체분해성 망막압정을 이용한 망막고정에 대한 실험적 연구

김용백,민병무,김창식,박근성,김승영,길숙종,조항진,이성복,노승무,송규상,강대영,조준식,양준묵,정경수,최선웅,이진호,김학용,인현빈 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.1

Biodegradable retinal fixation devices obtain mechnical fixation of the retina with desirable chorioretinal scarring and with the potential for local, sustained release of antimetabolites and steroids to inhibit proliferative vitreoretinopathy. We manufactured a biodegradable retinal tack with barb that was designed in order to prevent intrusion from implantation of retinal tacks. This study was carried to evaluate the efficacy for retinal fixation and the capability for sustained release of drugs with a newly designed biodegradable retinal tack Biodegradable retinal tacks were made of polymers of glycolic acids and were designed with barbs in a shape to prevent the disinsertion. Biodegradale retinal tacks are divided into 3 parts, a conical portion that is inserted into the sclera, a cylinder portion that remains in the vitreous, and a neck portion between the pin and the cylinder. The tapered conical end was manufactured to allow easy insertion through the retina and choroid into the sclera. A cylinder portion was manufactured with a tapered angle that fixes firmly into the orifice of 19 gauge spinal needle. A neck portion, 0.4 mm in diameter, was designed to prevent disinsertion from following implantation of retinal tack. The applicator was a 19 gauge spinal needle and its orifice was prepared to 15°angle to accept the tapered cylinder portion of the retinal tack. The retinal tacks, secured in the needles, were passed through the formed vitreous and inserted into the retina, choroid, and sclera and were released by pushing the internal needle, usually within 2-3mm of the medullary ray of the posterior rabbit retina A retinal tack was placed in each of 8 pigmented rabbit eyes. Slit-lamp biomicroscopy, indirect ophthalmoscopy and fundus photography were performed periodically from 1 day to 8 weeks after surgery. Eight eyes were enucleated and studied by light microscopy at 8 weeks. Biomicroscopic evaluation of the animals revealed edemas adjacent to the retinal surfaces immediately after insertion of the biodegradable retinal tacks in all the animals. These edemas disappeared after 1 week. The first noticeable change in the size of retinal tacks was shown after 2weeks. The size of the retinal tacks gradually got smaller, decreasing to about one-half at 4 weeks and about one-third at 8 weeks. All retinal tacks remained in inserted places without any movement for an 8 week period. On light microscopy, epiretinal proliferations were seen to extend into the vitreous cavity. Cellular capsules that lined the inner aspect of the scleral defect caused by tack insertion were found. However the adjacent retina had a normal cytologic appearance and architecture in all specimens. We manufactured a biodegradable retinal tack that is designed to prevent intrusion from implantation of retinal tacks. All biodegradable retinal tacks reduce in size with time, but no retinal tacks extruded from the inserted place. The newly designed biodegradable retinal tack can be used for retinal fixation and may be used as a vehicle for the introduction of pharmacologic agents to prevent the cellular events that promote proliferative vitreoretinopathy.

결절성 황색종과 동반된 제 Ⅲ 형 과지질단백혈증 1예

김지현,김연진,김현주,조소연,황규광,함정희 梨花女子大學校 醫科大學 醫科學硏究所 2000 EMJ (Ewha medical journal) Vol.23 No.1

We report a case of type Ⅲ hyperlipoproteinemia associated with tuberous xanthoma, which is improved by treatment with lovastatin and bezafibrate. A 34-year-old female patient visited our clinic for evaluation of multiple yellowish-brown papulonodules on the kness, elbows and palms. Serum lipid examination showed an abnormal elevation of serum cholesterol and triglyceride. Lipoprotein electrophoresis showed a single peak at pre-β and β portion without separation. The biopsh specimen from a nodule on the knee and a papule on the palm revealed characteristic findings of xanthoma. We diagnosed the case as type Ⅲ hyperlipoprotei-nemia. After 3 months of treatment with diet restriction, lovastatin and bezafibrate, the serum levels of cholesterol and triglyceride were reduced to normal level. The skin lesion of the palm showed complete regression and ones on both knees and elbows were moderate improvement.

부산의 한 대학병원에서 분리된 Acinetobacter baumannii의 PER-1 Extended-Spectrum β-Lactamase 생성 현황

김정만,강현경,정석훈,배일권,권수봉,조병규,김둘만,김현주,김아성 대한임상미샐물학회 2004 Annals of clinical microbiology Vol.7 No.1

A Conversation Analysis of Korean Sentence-Ending Modal Suffixes -ney, -kwun(a), and -ta: Noticing as a Social Action

Kyu-hyun Kim 한국사회언어학회 2004 사회언어학 Vol.12 No.1

Kim, Kyu-hyun. 2004. A Conversation Analysis of Korean Sentence-Ending Modal Suffixes -ney, -kwun(a), and -ta: Noticing as a Social Action. Sociolinguistic Journal of Korea, 12(1). Drawing upon H. S. Lee's (1993) cognitively-oriented research on the functions of three sentence-ending modal suffixes in Korean that are used to express newly perceived information, -ney, -kwun(a), and -ta, this study analyzes the distinct meanings of these suffixes from a conversation-analytic perspective (Sacks et al. 1974). The suffix -ney is used in the context in which the speaker notices a referent/event and makes an assessment on the spot in such a way that the speaker's stance displayed through the action is formulated as something that is to be immediately oriented to and contingently taken up by the hearer. In contrast, the suffix -kwun(a) is used when the speaker is mainly oriented to displaying a stance congruent with the prior talk. The action it organizes is often limited to acknowledging a point of the prior talk or having the hearer acknowledge the speaker's observation, often with a salient topic-curtailing and sequence-terminating import. The suffix -ta tends to orient the hearer to the next stage of the speaker's action (e.g., suggestion, warning, offer, etc.) to whose directive force the hearer is variably implicated as a beneficiary/facilitator. The interactional account offered in this paper is shown to complement Lee's cognitive account, with emphasis placed on examining the ways in which these suffixes are used as resources for organizing distinct types of social action.

The Sentence-Ending Suffix -Ketun in Spoken Korean Discourse: Sequential Organization of Informing as Account-Giving

Kyu- hyun Kim 한국사회언어학회 2010 사회언어학 Vol.18 No.1

Kim, Kyu-hyun. 2010. The Sentence-Ending Suffix - Ketun in Spoken Korean Discourse: Sequential Organization of Informing as Account-Giving. The Sociolinguistic journal of Korea 18(1). From a conversation-analytic perspective, this paper examines the ways in which the Korean sentence-ending suffix (SES) -ketun is used in naturally occurring spoken Korean discourse. Focusing on the question of how the practice of informing implemented by the ketun-utterance provides a basis for the sequentially implemented action of account-giving (Kim & Suh 2009), it analyzes (i) the nature of the information marked by -ketun in terms of how it is grounded, (ii) the sequential contexts where the informing sequence that -ketun generate i embedded, and (iii) features of the ketun-marked account with reference to the practices of formulating non-negotiable upshot, evoking positionaJly relevant identities, unpackaging information geared to enlightening the addressee. and stance-shifting. These practices are anaJyzed as being constitutive of the action-organizational features of the ketun-marked account, whose upshot is proposed to be that of evoking and managing the information gap or disparity in knowledge asserted by the speaker to exist between the participants.