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      • KCI등재

        언어분석기법을 활용한 치과위생사의 의료인화 관련 신문기사 분석: R 프로그램 이용

        김송이,윤가림,강동현,김수진,이시은,장수빈,홍성민,황지훈,김남희,Kim, Song-Yi,Yoon, Ga-Rim,Kang, Dong-Hyun,Kim, Su-Jin,Lee, Si-Eun,Jang, Soo-Bin,Hong, Seong-Min,Hwang, Ji-Hoon,Kim, Nam-Hee 한국치위생학회 2017 한국치위생학회지 Vol.17 No.5

        Objectives: The purposes of this study were to analyze the trade newspapers related to 'recognition of the dental hygienist as the healthcare professional' using R program and to identify opinions of groups concerned with dental hygienists. Methods: This study was designed with contents analysis and cross-sectional. The subjects of the study were the articles for the last three years in medical and dental newspapers about the recognition of the dental hygienist as the healthcare professional. The collected articles were categorized and classified for each group's opinions about the issue. The key words were extracted according to the priorities of the opinions of agreement and disagreement. They were visualized after frequency analysis using R, a big data analysis program. Results: A total of 237 newspaper articles were extracted among 270 ones containing opinions. 245 were positive opinions and 25 were negatives. The main key words of the agreement were 'Amendment of Medical Law', 'Medical Practice', and 'Legal Guarantee of the Practice'. Advocates addressed that the issues should be resolved with the amendment of the law, as dental hygienists are not guaranteed to work based on the current law although they are actually doing the medical practices. Main key words of disagreement were 'Legal Guarantee of the Practice', 'Revision of Medical Technician Law', and 'Review of Job Type'. They described that the problem can be resolved by revising medical technicians act, and it needs to consider as job types of all healthcare professional. Conclusions: In the group who showed the positive opinions, it is possible to utilize measures such as promoting the cooperation of dental hygienists and developing public consensus through publicity.

      • KCI등재

        저속 무전 통신 환경에 적용 가능한 키 관리 방식

        김송이,이광우,정한재,조영준,차욱재,김승주,원동호,Kim, Song-Yi,Lee, Kwang-Woo,Jeong, Han-Jae,Cho, Young-Jun,Cha, Wook-Jae,Kim, Seung-Joo,Won, Dong-Ho 한국정보처리학회 2009 정보처리학회논문지 C : 정보통신,정보보안 Vol.16 No.4

        무선 통신 기술의 발달은 기존 유선 통신 사용자에게 이동성과 접근 편리성을 제공하였다. 무선 센서 네트워크 기술은 대표적인 무선 통신기술의 하나로, 센서 노드간의 통신에 에러가 빈번하고 통신 속도가 느린 저속 환경이며, 노드의 자원 제약 및 컴퓨팅 능력의 한계로 인해 유선 네트워크 환경에서 설계된 보안 메커니즘을 그대로 적용하는 것이 어렵다. 이러한 무선 센서 네트워크의 환경적인 제약사항이 무전 통신 환경과 유사함에 착안하여 무선 센서 네트워크 기술을 참고하여, 무전 통신 환경에 적용 가능한 효율적인 키 관리 기법을 제안하고자 한다. 본 논문에서 제안하는 방식은 일대일 통신에서 사용될 pair-wise key 설정 및 갱신, 일대다 통신에 사용될 그룹키 설정 및 갱신을 제공하며, 그룹 단위의 무전기 추가가 가능하다는 장점을 갖는다. 제안하는 master key 기반의 키 관리 방식은 군(軍)에서의 특수한 작전 수행 및 비밀 통신이 요구되는 무전 통신 환경에 활용될 수 있다. The development of wireless communications provides mobility and accessibility to the wire communication users. Wireless sensor network is one of the leading wireless communication techniques. The security mechanism for wired network communication cannot be applied to wireless sensor network because of the limited resource and computing capability of nodes. Furthermore, communication errors frequently occur and the speed is low. Thus, efficient key management scheme is required in low-speed environment. In this paper, we proposed an efficient and secured master key-based scheme compared to the existing scheme. The advantage of our scheme is that establishing and renewing the pair-wise key is possible. In addition, it provides functions such as establishing group keys and renewing it. Furthermore, adding nodes is enabled through our scheme. The master key-based scheme can be applied to military operations and to radio communications for confidential communications.

      • KCI등재

        High-Temperature Oxidation Behaviors of Fe-Cr-Al Bulk and Powder-Sintered Materials

        김송이,Sung-Hwan Choi,Jung-Yeul Yun,Byoung-Kee Kim,Young-Min Kong,Kee-Ahn Lee 대한금속·재료학회 2011 METALS AND MATERIALS International Vol.17 No.6

        In this study, cast bulk specimens and powder sintered specimens were produced from a Fe-22% Cr-5.8% Al alloy, which has been drawing industrial attention for its outstanding high-thermal and oxidation resistance as well as for its applicability as a filter and support material. The high-temperature oxidation behaviors of the specimens were compared and analyzed. Two types of specimens were subjected to 24-hour isothermal oxidation (temperatures of 900 °C, 1000 °C, and 1100 °C and a gas atmosphere of 79% N_2+21% O2) to understand their high-temperature oxidation properties. The oxidized specimens were examined via X-ray, SEM, FE-SEM, and EPMA for microstructure and oxide analyses. The results of the oxidation tests showed that both bulk and powder-sintered specimens gained weight as temperature increased, with the powder sintered specimens gaining far more weight than the bulk specimens. As the temperature increased, the bulk specimens showed sequential formation of Al_2O_3, Cr_2O_3, and Fe_3O_4 oxide layers. The stable Al_2O_3 on the surface of the bulk specimens was found to play a role in arresting the rapid growth of oxide layers. In the powdersintered specimens, however, the internal diffusion of O2 easily took place along the powder interfaces. As a result, far more oxidation occurred in the powder-sintered specimens than in the bulk specimens. Cracks and disintegration of the oxide layers were also found to have occurred as the temperature increased. The high-temperature oxidation mechanisms of bulk and powder-sintered materials in relation to temperature increase are further discussed.

      • KCI등재

        무인증서 공개키 암호 기법의 재고: 안전성 모델 및 설계

        김송이,박승환,이광수,Kim, Songyi,Park, Seunghwan,Lee, Kwangsu 한국정보통신학회 2016 한국정보통신학회논문지 Vol.20 No.6

        무인증서 공개키 암호(Certificateless Public Key Encryption scheme)는 사용자 ID를 공개키로 사용함으로써 공개키 암호 시스템의 인증서 관리 문제를 해결하고 ID기반 암호 기법의 키 위탁(key escrow) 문제를 해결할 수 있는 기술이다. 이에 대한 연구가 활발히 진행되었음에도 불구하고, 기존의 여러 무인증서 암호 기법들은 사용자가 선택한 비밀값과 복호화 키 노출 공격에 대한 안전성을 고려하지 않고 설계되었다. 비밀값과 복호화 키 노출 공격이란 한 번이라도 공개키가 교체된 이후 이전에 사용했던 비밀값과 복호화 키가 노출된다면 그로부터 ID에 대응하는 부분 개인키를 획득해 현재의 정당한 복호화 키를 연산할 수 있는 공격이다. 본 논문에서는 키 노출 공격에 대해 안전한 새로운 안전성 모델을 제안하고, 해당 안전성 모델에서 기존의 무인증서 공개키 암호 기법들이 안전하지 않음을 보인다. 또한, 제안한 모델에서 안전한 새로운 무인증서 공개키 암호 기법을 제시하고, DBDH(Decision Bilinear Diffie-Hellman) 가정을 기반으로 안전성을 증명한다. Certificateless public key cryptography is a technique that can solve the certificate management problem of a public key cryptosystem and clear the key escrow issue of ID-based cryptography using the public key in user ID. Although the studies were actively in progress, many existing schemes have been designed without taking into account the safety of the secret value with the decryption key exposure attacks. If previous secret values and decryption keys are exposed after replacing public key, a valid private key can be calculated by obtaining the partial private key corresponding to user's ID. In this paper, we propose a new security model which ensures the security against the key exposure attacks and show that several certificateless public key encryption schemes are insecure in the proposed security model. In addition, we design a certificateless public key encryption scheme to be secure in the proposed security model and prove it based on the DBDH(Decisional Bilinear Diffie-Hellman) assumption.

      • KCI등재

        한국 침구 전문서 『영소침구경』 연구

        김송이,김종현,Kim, Song-Yi,Kim, Jong-Hyun 경락경혈학회 2017 Korean Journal of Acupuncture Vol.34 No.3

        Objectives : Previous research on texts specializing in acupuncture and moxibustion in Korea have mostly been focused on those written in the Joseon period, leaving an academic void in the modern and contemporary eras. This research on the "Yeongsochimgugyeong" was undertaken to help readers' understanding of the text and to provide basic material for further research on modern-contemporary education of acupuncture and moxibustion. Methods : The original text of "Yeongsochimgugyeong" was examined along with books and news articles on related people. Information that was difficult to obtain through written documents was supplemented by interviews with people who knew about the situation at the time. The findings were organized as 1) the author and related people and 2) introduction of "Yeongsochimgugyeong". Results and Conclusions : The original text of "Yeongsochimgugyeong" was written by teacher Jeon, Gwangok, interpreted and annotated by his disciple Gwon, Yeongjun. It is presumed that they wrote this book as educators of Korean medicine for educational purposes on acupuncture and moxibustion before and after the Japanese colonial era. The book is consisted of an overview of meridianology, details on points and meridians, supplementing and draining methods, similar to the current text book. The contents and expressions of "Yeongsochimgugyeong" reflect the state of acupuncture and moxibustion education of the early and mid $20^{th}$ century, making it a valuable resource.

      • KCI등재

        기계적 합금화 공정에 의한 Hf계 비정질 분말의 미세변형거동 관찰

        김송이,이아영,차은지,권도훈,홍성욱,이민우,김휘준,이민하,Kim, Song-Yi,Lee, A-Young,Cha, Eun-Ji,Kwon, Do-Hun,Hong, Sung-Uk,Lee, Min-Woo,Kim, Hwi-Jun,Lee, Min-Ha 한국분말야금학회 2018 한국분말야금학회지 Vol.25 No.3

        In this study, we investigate the deformation behavior of $Hf_{44.5}Cu_{27}Ni_{13.5}Nb_5Al_{10}$ metallic glass powder under repeated compressive strain during mechanical milling. High-density (11.0 g/cc) Hf-based metallic glass powders are prepared using a gas atomization process. The relationship between the mechanical alloying time and microstructural change under phase transformation is evaluated for crystallization of the amorphous phase. Planetary mechanical milling is performed for 0, 40, or 90 h at 100 rpm. The amorphous structure of the Hf-based metallic glass powders during mechanical milling is analyzed using differential scanning calorimetry (DSC) and X-ray diffraction (XRD). Microstructural analysis of the Hf-based metallic glass powder deformed using mechanical milling reveals a layered structure with vein patterns at the fracture surface, which is observed in the fracture of bulk metallic glasses. We also study the crystallization behavior and the phase and microstructure transformations under isothermal heat treatment of the Hf-based metallic glass.

      • KCI등재

        한국인 저자 전거에 관한 국가간 비교 연구

        김송이,정연경,Kim, Song-Ie,Chung, Yeon Kyoung 한국문헌정보학회 2015 한국문헌정보학회지 Vol.49 No.1

        저자 전거 관리는 저자 정보에 대한 관리뿐만 아니라, 저자명의 이형을 모아 접근점을 제공한다는 점에서 이용자에게 유용하다. 본 연구는 한국문학번역원의 한국문학 작가명 데이터베이스(문인DB)와 한국과 미국, 일본의 국립도서관이 구축한 한국인 저자 전거레코드의 구축 현황을 비교 분석하여 한국인 저자 전거의 현황과 문제점을 살펴보았다. 연구 결과, 문인DB는 번역출간도서의 정보가 상당수 기입되지 않았고 미의회도서관과 일본 국립국회도서관의 전거레코드는 저자명 누락, 잘못된 저자명 기입, 출생년과 사망년의 미표기 등 항목 누락과 오기가 발견되었으며, 국립중앙도서관은 영문 이형 및 한자 이형이 기입되지 않았다. 이러한 문제를 해결하기 위해 문인DB 정보의 수정 및 갱신, 국립중앙도서관의 전거레코드 공개, 한국문학번역원과 국립중앙도서관 등 주요 기관을 중심으로 한 국제전거 파일(VIAF)의 참가를 개선방안으로 제안하였다. Name Authority Control is useful not only to manage author information but also to gather other names of authors in order to provide access points in libraries and other institutes. The purpose of this study is to find problems through comparing and analyzing Literature Translation Institute of Korea Author Database, Korean name authority records of national libraries in the U. S., Japan and Korea. The results of the study are as follows. First, Literature Translation Institute of Korea Author Database missed some useful information about Korean writers in translated books in other countries. Second, the name authority file of Library of Congress and National Diet Library did not include the variant names, dates of authors' birth and death date, and filled out incorrect variant names with some birth and death dates. Third, English and Chinese character variants of Korean authors were not found in the National Library of Korea. To solve these problems, revisions of Korean author database, open access to National Library of Korea name authority file, and a strong participation of VIAF were suggested.

      • KCI등재

        산후 응급 자궁적출술의 임상적 고찰

        김송이 ( Song E Kim ),홍서유 ( Seo Yoo Hong ),김주오 ( Joo Oh Kim ),신정환 ( Jung Whan Shin ),김대운 ( Dae Woon Kim ),신영진 ( Young Jin Shin ) 대한주산의학회 2002 大韓周産醫學會雜誌 Vol.13 No.1

        목적:을지 의과대학 산부인과 교실에서 시행된 산후 응급 자궁적출술의 증례들을 관찰 분석하고자 한다. 연구방법:1996년 5월부터 2000년 12월까지 산후 자궁적출술을 시행받은 37례를 대상으로 빈도, 연령별 및 분만횟수별 분포, 적응증, 위험인자, 수술방법, 수혈량, 합병증 그리고 태아의 예후를 후향적 연구로 분석하였다. 결과:산후 자궁적출술의 총 빈도는 1,000분만당 2.3례였고 분만방법에 따른 빈도는 질식분만후 0.03%, 제왕절개술 분만후 0.52%로 제왕절개 분만후 산후 자궁적출술의 빈도가 더 높았다. 또한 연령이 증가할수록 그리고 분만횟수가 많을수록 산후 자궁적출술의 빈도는 높았다. 수술의 적응증은 전치태반과 유착태반을 포함한 태반요인(54.1%), 자궁무력증(37.8%), 자궁근종(5.4%), 자궁파열(2.7%)의 순서로 나타났다. 위험인자에 대한 산후 자궁적출술의 비교 위험도는 태반요인에 대해 97.6(95% 신뢰구간 52.17~184.06), 제왕절개술에 대해 16.3(95% 신뢰구간 4.94~52.31), 그리고 기왕제왕절개술에 대해 2.4(95% 신뢰구간 1.21~4.76)로 태반 요인이 높은 비교위험도를 나타내었으며 95% 신뢰구간에서 볼 때 의의가 있었다. 수술방법은 대부분 전자궁적출술(92%)로 이루어졌고 평균 수혈량은 17.1pints 였다. 합병증은 전체의 43.2%로 나타났는데 주로 폐부종, 무기폐, 기흉등의 호흡기계 합병증, 범발성 혈관내 응고장애, 감염 및 비뇨기계 합병증이었으며 산모사망의 예는 없었다. 태아사망은 2례(5.3%)에서 있었고 신생아 이환율은 26.3%로 10례에서 발견되었다. 결론:산후 자궁적출술의 주된 원인은 전치태반 또는 유착태반 등의 태반요인이다. 산후 자궁적출술은 산모의 생명이 위협을 받는 상황 아래서 시행될 수 있는 최선의 방법이나 산모의 이환율이 높으므로 산전관 리부터 위험요인에 대한 세심한 관리와 처치가 필요하다. Objective:To analyze incidence, indications, risk factors, complications, and neonatal outcomes of emergency postpartum hysterectomies performed at EulJi University Medical Center. Methods:A retrospective study of all cases of postpartum hysterectomies between May. 1996 and Dec. 2000. was carried out. Results:37 cases of postpartum hysterectomies during this period were performed, for overall incidence of 2.3 per 1000 deliveries. Incidence after vaginal delivery and cesarean section was 0.03% and 0.52% respectively. The rate of postpartum hysterectomy increased with increasing age and parity. The main indications were placental disorders(54.1%) including placenta previa and adherent placenta, uterine atony(37.8%), uterine myoma(5.4%) and uterine rupture(2.7%) in order. The relative risk of postpartum hysterectomy according to the risk factors was 97.6(95% confidence interval 52.17-184.06) for placental disorders, 16.3(95% confidence interval 4.94-52.31) for cesarean section and 2.4(95% confidence interval 1.21-4.76) for previous cesarean section. The mean amount of transfusion was 17.1 pints. Although no maternal mortality had occurred, 16 patients(43.2%) had complicaions including respiratory complication(13.5%), hemorrhagic complication(10.8%), infection(8.1%) and urologic injury(8.1%). Regarding fetal outcome, 2 of 38 infants(1 case, twin) were stillborn (5.3%) and 10 infants(26.3%) were suffered from various illness including prematurity, sepsis, meningitis, and brain hemorrhage. Conclusion:The data identifies placental disorders are the leading cause of postpartum hysterectomy. Although postpartum hysterectomy is a necessary life-saving operation, maternal morbidity remained high.

      • 운동선수가 스포츠 상해에 대해 경험한 의료서비스에 대한 탐색적 연구: 경험, 중요도 및 지불의사를 중심으로

        김송이(Dae Chul Kim),김재현(Jae Hyun Kim),김정숙(Jung Sook Kim),차병주(Byung Joo Cha),김대철(Song Yi Kim) 대한스포츠한의학회 2018 대한스포츠한의학회지 Vol.18 No.1

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

        Objectives The purpose of this study was to investigate the athletes medical service experience, the importance of each service recognized by athletes, the willingness to pay for each service. Methods A survey was conducted for athletes or parents who with young athletes as their children. We obtained a response rate of 98% (100 questionnaires were distributed) from five organizations. All questionnaires were self-reported. Results Athletes perceived less satisfaction with health services for diagnosis, injury prevention, and mental support than those received for sports injuries. Respondents were concerned about athlete-specific treatment & rehabilitation programs, suitable programs for young athletes, programs to prevent rehabilitation, and one-stop services for diagnosis-treatment-rehabilitation-injury prevention. However, respondents perceive that the part of the mental domain is important in the area of expertise (treatment / rehabilitation, prevention, mental domain) of the medical service, while the degree of actual experience and satisfaction with the experience are low. Most athletes answered that they would pay an additional 10% for an athlete-specific medical service. Conclusions This study provided basic data on the economic competitiveness of medical services provided in the field of sports medicine. More researches are required to explore the value of Korean sports medicine.

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