• 한국항해항만학회지
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• 제33권6호
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• pp.423-428
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• 2009

최근 국제교역량의 증가에 따라 해상 교통량이 증가하고 있다. 해상 교통량의 증가는 해상사고의 위험을 증가시키는 주된 원인이 되고 있다. 특히, 입출항이 빈번한 연안에서의 사고율이 높은 실정이다. 선박과 육상에 연안에서의 해양안전정보는 이러한 사고를 방지하는데 필수적이다. AIS AtoN은 국제항로표지기술협회의 기능적 권고안 및 국제전기통신연합의 기술적 표준안에 의해 운영되는 항행안전지원용 장비이다. 본 논문에서는 연안에서의 해양안전정보의 신뢰도를 높이기 위해, 기존 AIS AtoN의 표지의 안전과 설정관련 메시지에 사용자정의 명세를 확장해 보았다. 표지기본 메시지21, 상태보고 메시지6 그리고 안전관리 메시지12 와 메시지14에 사용자 정의형 포맷을 설계하고 구현했다.

• 한국수산과학회지
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• 제2권2호
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• pp.173-178
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• 1969

(1) 1968년 6월 18일부터 7월 16일 사이에 일본수산청 어업조사선 Kaiyo-Maru에 승선 New Zealand 근해에서 trawl 실험을 행하였다. (2) 대형선미 trawl에 있어 예강초와 양강직전의 warp 장력간의 차는 입강어의 다과와는 상관이 없는 것 같다.

• 정보관리학회지
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• 제20권4호통권50호
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• pp.1-21
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• 2003

본 연구는 국내 과학기술분야 인용정보의 형태 및 출판경과시간에 따른 인용비율과 인용 나이를 분석하여 과학기술문헌의 수명을 측정하고, 국내 연구자들의 국내외 정보원의 의존도를 밝히는데 그 목적이 있다. 이를 위하여 국내 과학기술분야 가운데 대표적인 영역인 기계, 건축, 화학, 전기전자분야에 대한 학술잡지 198건의 논문기사에 인용된 2,619건의 문헌을 대상으로 정보 인용형태의 차이와 특성을 비교 분석하였다. 그 결과 학술잡지, 도서, 회의자료, 연구보고서의 순서로 많이 인용되고 있었으며, 정보의 해외의존도는 화학분야가 가장 높았다. 인용문헌의 나이분석에서 국내문헌의 약 70%이상이 출판된 지 5년 이내의 문헌이었고, 전체로는 약60% 이상이 출판된 지 10년 이내의 정보원으로 나타났다. 또한 문헌의 반감기는 기계 6.50년, 건축 5.45년, 화학 9.65년, 전기전자 5.60년으로 측정되었다.

• Archives of Plastic Surgery
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• 제42권6호
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• pp.729-734
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• 2015

Background Insufficient satisfaction outcome literature exists to assist consultations for scar revision surgery; such outcomes should reflect the patient's perspective. The aim of this study was to prospectively investigate scar revision patient satisfaction outcomes, according to specified patient-selection criteria. Methods Patients (250) were randomly selected for telephone contacting regarding scar revisions undertaken between 2007-2011. Visual analogue scores were obtained for scars pre- and post-revision surgery. Surgery selection criteria were; 'presence' of sufficient time for scar maturation prior to revision, technical issues during or wound complications from the initial procedure that contributed to poor scarring, and 'absence' of site-specific or patient factors that negatively influence outcomes. Patient demographics, scar pathogenesis (elective vs. trauma), underlying issue (functional/symptomatic vs. cosmetic) and revision surgery details were also collected with the added use of a real-time, hospital database. Results Telephone contacting was achieved for 211 patients (214 scar revisions). Satisfaction outcomes were '2% worse, 16% no change, and 82% better'; a distribution maintained between body sites and despite whether surgery was functional/symptomatic vs. cosmetic. Better outcomes were reported by patients who sustained traumatic scars vs. those who sustained scars by elective procedures (91.80% vs. 77.78%, P=0.016) and by females vs. males (85.52% vs. 75.36%, P<0.05), particularly in the elective group where males (36.17%) were more likely to report no change or worse outcomes versus females (16.04%) (P<0.01). Conclusions Successful scar revision outcomes may be achieved using careful patient selection. This study provides useful information for referring general practitioners, and patient-surgeon consultations, when planning scar revision.

• 대한방사선기술학회지:방사선기술과학
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• 제39권4호
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• pp.527-534
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• 2016

DEXA는 골다공증 진단에 가장 많이 사용되는 표준 측정법이다. 현재 국내에서 운영되고 있는 DEXA 장치는 5,671대이다. 본 연구에서는 국내에서 설치 운영되고 있는 DEXA장비의 품질관리 실태를 조사하였다. 3,000개 기관을 대상으로 한 설문 조사에서 12.6%의 응답을 받아 그 결과를 분석하였다. 결과에서 77.5%가 일일 품질관리를 시행하고 있으나 Shewhart chart는 68.5%, CUSUM chart는 86.0%가 모르거나 사용하지 않는다고 답하여 정확한 품질관리가 되지 않는 것으로 조사되었다. 정확한 골밀도 검사는 환자의 골절의 위험도를 산정하기 위한 자료로 활용된다. 하지만 부적절한 검사는 오진을 유발할 가능성을 높여준다. 따라서 정확한 골밀도 검사를 위해서는 적절한 보조기구를 사용하고 장치의 품질관리를 반드시 시행하여 장치와 자세에 대한 오차를 줄이고 검사 의료진의 교육을 통해 오류 요인을 줄이는 것이 필수적이다.

• 인터넷정보학회지
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• 제14권4호
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• pp.63-76
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• 2013

This short report introduces the general background why Brazil conference is being prepared and what topics would be undertaken and what goals are being taken into account. It overviews what differences from traditional telecommunication governance, internet governance has had in its historical development and how such differences had been formed from its technological differences and the regulatory policy shift from common carrier regulation to privatization. Moreover, the fact that open, voluntary, bottom-up, diverse stakeholder's participation had evolved throughout the historical development of the internet, had established the present multistakeholder governance model from technological standardization to addressing scheme policies. ICANN, which has governed internet addressing schemes since the earlier 2000s, had developed address policies including IANA function from Jon Postel and technical community's legacy management system into contract based formation between ICANN and gTLD, ccTLD registries. And it made dispute resolution policies responding to trademark disputes and resolved gTLD monopoly issue by introducing new TLD generation and the separation of registry and registar. However, there had been challenges on the legitimacy of ICANN due to its dependency on the Federal Government of the U.S. particularly in its oversight role over ICANN and IANA contract. WSIS raised up internet governance issues including addressing governance, and set up IGF as a discussion platform for multistakeholders to discuss and share all views on other internet related public policies. IGF's loose and non-binding discussion once frustrated governments and other stakeholders, but more focused discussion and visible outcomes have consolidated its unique role for internet governance discourses. Particularly, IGF addressed many emerging internet related issues like cybersecurity, privacy, net neuratlity, development related issues. WTPF of 2013, after WCIT debate on whether traditional telecommunication regulation could be applied to internet infrastructure, suggested other governance issues such as the transition to ipv6, IXP coordination etc. How to make sure the legitimacy of internet addressing governance and how and where other internet related public policies could be undertaken are fundamental tasks for internet governance. Brazil conference, which has been motivated by the breakdown of trust in internet governance from NSA mass surveillance revealed by Snowden, faces these questions and try to make consensus on principles, institutions and roadmap for internet governance in multistakeholder participation way.

• 한국진공학회지
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• 제14권3호
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• pp.126-131
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• 2005

소각중성자산란 (Small-angle neutron scattering, SANS)은 물질의 내부 나노구조 분석에 매우 중요한 실험방법론이다. 본 논문에서는 30MW HANARO 연구용 원자로의 냉중성자 연구시설에 설치하기 위하여 한국과학기술원과 한국원자력연구소가 공동으로 개발 중인 40m SANS장치의 개념설계 결과를 보고한다. 장치의 설계 최적화를 위한 전산모사를 수행하였으며, 이를 바탕으로 40m SANS 장치의 주요설계 인자를 결정하였다. 40m SANS 장치의 가능한 Q-range는 $0.0005\;\AA^{-1}-1.0\AA^{-1}$ 이며, 이는 세계 최고 수준의 SANS Q-range에 해당된다. 각 Q-range에 따른 시료위치에서의 중성자 속을 계산하였으며 전산모사에 사용된 냉중성자원이 구현될 시 세계적 수준의 값을 얻을 수 있을 것으로 예상된다.

• 한국응용약물학회:학술대회논문집
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• 한국응용약물학회 1995년도 춘계학술대회
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• pp.79-79
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• 1995

Although synthetic antisense oligodeoxynucleotides (ODNs) have been used to dissect gene function in vitro, technical difficulties of targeted delivery prevented the use of this approach for investigating the effect of gene products in vivo. Here we report the use of local delivery of antisense transforming growth factor-${\beta}$l (TGF-${\beta}$1) oligonucleotides to decrease the fibrosis in the skin wound. Adult wounds heal with scar-tissue formation, whereas fetal wounds heal without scarring and with a lesser inflammatory and cytokine response. We reasoned that strategy emptying antisense TGF-${\beta}$1 ODNs complementary to TGF-${\beta}$1 mRNA might decrease the scarring in dermal wound of mouse. To evaluate this concept, we tested the effects of antisense ODNs targeted to TGF-${\beta}$1 mRNA by topical application of the chemical on the skin wound. Phosphorothioate antisense ODNs was employed to retard their degradation. When antisense TGF-${\beta}$1 ODNs were applied into the wound site, there was a maked reduction of scar compared with control wound site, These effects of antisense TGF-${\beta}$1 ODNs on the scar formation were associated with decreased expression of TGF-${\beta}$1 gene. However sense TGF-${\beta}$l ODNs had no effect on expression of TGF-${\beta}$1 gene. Also, control wounds healed with excessive fibrosis, whereas the antisense treated wounds healed with less fibrosis. In conclusion, our results indicate that antisense TGF-${\beta}$1 ODNs could be used for amelioating scar formation during wound healing.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2012년도 제42회 동계 정기 학술대회 초록집
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• pp.251-251
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• 2012

A lot of studies are undergoing on the magneto-optical (MO) properties of patterned magnetic systems for the reason that they have potential application to information technology such as ultrahigh-speed computing. Moreover, they can be considered as the future candidates for high-density MO storage devices. Not only the technical aspects, but there have been also tremendous interests in studying their properties related to the fundamental physics. The MO Kerr-rotation effects (both in reflected and the diffracted modes) and the magnetic force microscopy (MFM) are very useful techniques to investigate the micromagnetic properties of such periodic structures. Hence, in this study, we report on the MO properties of bilayered Cobalt (Co)/ nickel (Ni) micro-patterned anti-dot arrays. Such a ferromagnetic structure was made by sequentially depositing co (40 nm)/Ni (5 nm) bilayer on a Si substrate. The anti-dot patterning with hole diameter of $1{\mu}m$ was done only on the upper Co layer using photolithography technique, while the Ni underlayer was kept uniform. The longitudinal Kerr rotation (LKR) of the zeroth- and the first-order diffracted beams were measured at an incidence of $30^{\circ}$ by using a photoelastic modulator method. The external magnetic field was applied perpendicularly to the reflected and the diffracted beams using an electromagnet capable of a maximum field of ${\pm}5$ kOe. Significantly, it was observed that the LKR of the first-order diffracted beam is nearly 4 times larger than that of the zeroth-order beam. The simulated results for the hysteresis loops matched qualitatively well with the experimentally obtained ones. In conjunction with the LKR, we also investigated the magnetic-domain structure by using a MFM system, which were analyzed to elucidate the origin of the enhanced MO rotation.

• Clinics in Shoulder and Elbow
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• 제9권1호
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• pp.105-110
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• 2006

Purpose: This study reports the clinical results of the arthroscopic Bankart repair in traumatic anterior instability of the shoulder with bio-knotless anchor. Materials and Methods: 21 cases of 21 patients (20 male and 1 female) were included in this study. The average age was 24.8 years old and the period from the first injury to operation was average 37.2 months. All cases had Bankart lesion and 12 cases had Hill-Sachs' lesion. The SLAP lesion was associated in 6 cases. Preoperative Rowe score was average 29.1. Arthroscopic Bankart repair with bio-knotless anchor were performed in all cases; 3 anchors at 3, 4, 5 O'clock position of the glenoid were used in 11 cases and 2 anchors at 4, 5 O'clock position were used in 10 cases. All the associated SLAP lesions were repaired arthroscopically with bio-knotless anchor. Thermal capsular shrinkage at the anterior and inferior shoulder capsule after the Bankart repair was performed in 3 cases. The average follow up period was 20.2 months. Results: The Rowe score improved to 92.8, excellent in 17 cases and good in 4 cases, at last follow up period and 20 cases had full range of motion of the shoulder. 1 case had mild limited range of motion of the shoulder (150 degrees in flexion, 60 degrees in external rotation and T12 level in internal rotation) without any problem in normal activity. The arthroscopic revision surgery of the shoulder was performed in 1 case because of multiple traumatic injuries of the shoulder with pain postoperatively. Conclusion: Arthroscopic Bankart repair with bio-knotless anchor in traumatic anterior shoulder instability is one of the good methods because of the good clinical results.