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      • Key Ethical Issues and Hindrances to Ethical Behavior in Korean Insurance Industry

        Lee, Kyung-Lyong,Lee, Bong-Joo,Lee, Han-Duck 서강대학교 경영연구소 2004 서강경영논총 Vol.15 No.2

        The purpose of this paper is to investigate key ethical issues and hindrances to ethical behavior faced by professionals working in Korean insurance industry. For this purpose, conducted is a survey of actuaries in a variety of positions in insurance companies and insurance related institutions. The findings also are compared to those of American studies. Actuaries' perceptions of the key ethical issues tend to be restricted to actuarial aspects such as insufficient legal authority to perform professional services in an ethical manner and failure to get adequate ethics training program. But some issues arising in marketing are considered significant similar to the U.S. As a whole, key ethical issues and challenges are not significantly different from the viewpoints of actuaries working in the life and non-life insurance business. Regarding key hindrances to ethical behavior, the 15 factors are presented such as competitive pressures, performance-based evaluation and unethical demand made by clients. These findings are generally similar to those of the U.S. studies.

      • KCI등재후보

        광중합형 구치부 수복재료의 중합수축량과 중합수축력

        박성호,이순영,조용식,김수선,이창재,김영주,이봉희,이광성,노병덕 大韓齒科保存學會 2003 Restorative Dentistry & Endodontics Vol.28 No.4

        The purpose of present study was to evaluate the polymerization shrinkage stress and amount of linear shrinkage of composites and compomers for posterior restoration. For this purpose, linear polymerization shrinkage and polymerization stress were measured. For linear polymerization shrinkage and polymerization stress measurement, custom made Linometer (R&B, Daejon, Korea) and Stress measuring machine was used (R&B, Daejon, Korea). Compositers and compomers were evaluated; Dyract AP (Dentsply Detrey, Gumbh, German) Z100 (3M Dental Products, St. Paul, USA) Pyramid (Bisco, Schaumburg, USA) Synergy Compact (Coltene, Altstatten, Switzerland), Heliomolar (Vivadent/Ivoclar, Liechtenstein), and Compoglass (Vivadent Ivoclar/Liechtenstein) were used. 15 measurements were made for each material. Linear polymerization shrinkage or polymerization stress for each material was compared with one way ANOVA with Tukey at 95% levels of confidence. For linear shrinkage ; Heliomolar, Surefil<Synergy Compact, Z100<Dyract AP<Pyramid, Compoglass F (p<0.05) For Shrinkage stress ; Heliomolar < Z100, Pyramid<Synergy Compact, Compoglass F<Dyract AP<Heliomolar HB, Surefil (p<0.05)

      • 서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)

        김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1

        In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.

      • 발열이 동반된 호중구 감소증 환자에서 경험적 치료제로서 cefepime 단독요법과 ceftazidime 단독요법의 효과 비교 연구

        이동현,김춘관,고지영,마주락,이가영,천상열,김봉석,노용호 대한화학요법학회 2002 대한화학요법학회지 Vol.20 No.3

        발열이 동반된 호중구감소증 환자에서 초기경험적 치료제로서 cefepime은 선택될 수 있다.Cefepime 단독요법은 ceftazidime 단독요법과 비교하여 동등한 임상적 성공률을 보였으나, 향후 더 많은 환자를 대상으로 한 비교연구 및 자료의 보충이 필요하다 하겠다. Background : In view of the recent trend toward monotherapy in the treatment of bacterial infection, we evaluate the clinical efficacy and safety of cefepime versus ceftazidime for the empiric treatment of febrile episodes in cancer patients with chemotherapy-induced neutropenia. METHODS : A prospective, double-blind, randomized study of cefepime 2g every twelve hours and ceftazime 2g every eight hours was performed in 40 adult neutropenic (absolute neutrophil count 〈500/㎣) cancer patients with fever. RESULTS : Forty patients were evaluable. Median duration of neutropenia was 11.5 days in cefepime and 10.5 days in ceftazidime. Treatment was successful in (60%)(12/20) of cefepime-treated patients and (65%)(13/20) of ceftazi야me-treated patients. Overall mortality was 10%(2/20) of cefepime-treated patients and 15% of ceftazidime-treated patients. CONCLUSIONS : Cefepime appears to be as effective as ceftazidime in the initial treatment of febrile episodes in adults cancer patients with chemotherapy-associated neutropenia of modest duration.

      • SCOPUSKCI등재

        Ektaspeed Plus 방사선사진, 간접 디지털 영상 및 Digora 영상의 치근단 병소의 판독능 비교

        이희주,나경수,조봉혜 大韓口腔顎顔面 放射線學會 1998 Imaging Science in Dentistry Vol.28 No.2

        The comparative detectability of the artificial periapical defects among Ektaspeed Plus film, digitized and digora images was evaluated. The artifical defects were made in the cancellous bone and cancellous-cortical junction with the size of 1.0×0.8m㎡, 1.4×1.1m㎡ and 2.8×2.2m㎡. The defects in cancellous-cortical junction extended into cortical bone with the depth of 0, 0.5 and 1.0 mm. The results were as follows: 1. In junctional defects Ektaspeed Plus film for 2.8×12.2m㎡ defect showed the highest detectability. But siginificant difference were only found between Ektaspeed Plus films and digitized images(p<0.05). 2. Almost all defects within cacellous bone were not detected except a few digitized and Digora images for the size of 2.8×2.2m㎡. Digora images for them showed significant differences with Ektaspeed Plus films and digitized images(p<0.05). 3.The sensitinity of all imaging modalities were 0.9 or 1.0 in junctional defects for the size of 1.4×2.2m㎡ and 2.8×2.2m㎡. For cancellous defects, Digora image showed the highest sensitivity of 0.6 for the size of 2.8×2.2m㎡. 4. Siginificant differences for change of exposure time were found in most group of Ektaspeed Plus films and digitized images(p<0.05). But there was no significant differences in Digora images for cacellous defects.

      • KCI등재후보

        병원근무자에 대한 특수건강진단 적용 가능성에 관한 연구

        이수일,조병만,조봉수,김영욱,고광욱,문남출,김주원 大韓産業醫學會 1996 대한직업환경의학회지 Vol.8 No.2

        병원근무자들에 대한 특수건강진단 적용 여부를 판단하기 위한 기초자료를 제공하기 위해 1995년 3월 10일부터 4주간에 걸쳐 부산시내에 위치하는 2개 종합병원 근무자 830명을 대상으로 설문조사를 시행해 얻은 결과를 요약하면 다음과 같다. 1. 조사된 43개 항목 중 10% 이상의 대상자가 유해요인에 폭로되고 있다고 응답한 항목은 소음, 분진 등 16개 항목이었다. 이 중 분진, 소음 및 스트레스는 연구대상자의 50%이상에서 폭로되고 있다고 응답했으며 그 외 알콜류 소독제(41.3%), 방사선(34.6%), 일반약제(33.3%)의 순으로 폭로되고 있었고 VDT의 경우 25.2%, aldehyde류는 18.7%에서 폭로되고 있는 것으로 나타났다. 2. 대상자의 63.1%에서 병원근무 환경 중에 유해인자가 존재한다고 응답했고 병원의 환경측정이 필요하다고 대답한 사람은 80%에 달했다. 35.7%가 유해인자에 대한 교육을 받은 적이 없다고 응답했다. 전체 응답자의 35.7%가 유해인자에 폭로시 보호 장비를 착용하지 않는다고 응답했고 주기적인(격년) 건강진단은 48.6%에서 받는 것으로 조사되었다. 근무부서의 환기상태는 7.2%만이 좋은 편이라고 응답했다. 이상에서 살펴본 바와 같이 병원근무자들이 여러 가지 유해환경에 노출되고 있고 또, 이로 인해 발생할 수 있는 건강장해에 대한 예방대책이 소홀한 것으로 나타나 병원의 작업환경측정의 시행이 필요하고 이 결과를 바탕으로 병원근무자들에 대한 특수건강진단 적용여부를 결정해야 할 것이다. This study was performed to decide the possibility of special health examination to the hospital employees. We carried out questionnaire survey for 830 subjects at 2 general hospitals located in Pusan city. The summary of this study are as follows. 1. Above 10% of total hospital employees were replied that they exposed to 16 hazard items, such as dust, noise, stress and etc. Among them, over 50% of hospital employees exposed to dust(69.8%), noise(52.3%), stress(60.1%). And hospital employees exposed to alcoholic disinfectant(41.3%), radiation(34.6%), drug(33.3%), VDT(25.2%), and aldehyde(18.7%) also. 2. 63% of the hospital employees replied that there were hazardous factors in hospital environments, and 80% insisted the necessity for hospital environment measuring. 35.7% of respondents replied that they had never taken the education about hazardous factors. 35.7% of the total respondents answered that they didn't use protective equipment when exposed to hazardous factors. And 48.6% answered they took periodic health examination. Only 7.2% replied that ventilation condition of office room was proper. As shown in above results, hospital employees are exposed to various hazards, and turn out neglecting to health problems caused these hazardous factors. So at first, it is necessary to measuring hospital working environment, and then will be decided the possibility of special health examination to the hospital employees.

      • 조기탈형을 위한 라텍스 개질 초속경 콘크리트의 개발 및 강도발현 특성

        이봉학,홍창우,이주형,정원경 강원대학교 석재복합신소재제품연구센터 2001 석재연 논문집 Vol.6 No.-

        현재 스틸렌-부타디엔 라텍스(styrene-butadiene latex)를 혼입한 콘크리트는 광범위하게 사용되고 있다. 교면포장용으로 라텍스 개질 콘크리트(LMC)의 사용은 일반 콘크리트와 다르지 않지만 라텍스에 의해 콘크리트의 특성을 향상시킨다. 그러나, 이와 같은 라텍스 개질 콘크리트와 다르지 않지만 라텍스에 의해 콘크리트의 특성을 향상시킨다. 그러나, 이와 같은 라텍스 개질 콘크리트는 장시간 양생을 요하는 문제로 인해 긴급을 요하는 곳에는 적용할 수 없다. 따라서 본 연구에서는 초속경시멘트를 사용한 라텍스 개질 콘크리트를 개발하고, 이에 따른 작업성 및 강도발현특성을 분석하는데 그 목적이 있다. 실험결과, 지연제와 소포제를 사용한 라텍스 개질 초속경 콘크리트(RSLMC)의 강도발현을 확인할 수 있었으며, 제안된 최적배합은 초속경성의 강도발현으로 인해 현장에서 긴급보수에 적용이 가능함을 알 수 있었다. 따라서 라텍스 개질 초속경 콘크리트는 교면포장, 포장체, 빌딩등의 보수에 적용이 가능할 것으로 판단된다. Concrete containing styrene-butadiene latex is widely used, nowadays, as a protective system for bridge. The usage of latex modified concrete (LMC) as an overlay system is not all that different from any quality concrete, but the improved properties impart to the concrete by the latex. However, this may not be used for repair works because the bridge lane could not be closed for several weeks for curing. Therefore, this study focused on the development of rapid-setting cement latex modified concrete (RSLMC), and on the investigation of workability and strength development. As a result, this study clearly validated the strength development of RSLMC by introducing a retarder and an antifoam agent. The proposed optimized concrete mixtures might be satisfactorily applied for the repair works in fields, because of its rapid strength development, respectively. Therefore, RSLMC could be used in many repair or overlay works such as bridge deck, pavement or building.

      • KCI등재후보

        시멘트 종류에 따른 SB 라텍스 개질 콘크리트의 강도 및 투수특성

        이봉학,홍창우,이주형,김동호 江原大學校 産業技術硏究所 2001 産業技術硏究 Vol.21 No.B

        This study focused on the investigation of strength development and permeability of LMC(Latex Modified Concrete) and RSLM(Rapid-Setting Cement Latex Modified Concrete) as the latex content cement types and s/c ratio changed. The compressive strength of latex modified concrete decreased slightly and the flexural strength increased quitely at 15% of latex content. This may be due to the flexibility of latex filled in voids and interconnections of hydrated cement and aggregates by a film of latex particles, respectively. The permeability test results showed that the permeability of LMC was considerably lower than that of conventional concrete. Results of chloride permeability test, for RSLMC indicated very low at an early age caused by the early formation of needle-shape ettringites and latex film.

      • KCI등재후보

        유한요소해석을 이용한 현장 덧씌우기 콘크리트의 부착강도 평가 방법 제안

        이봉학,홍창우,이주형,김성환 江原大學校 産業技術硏究所 2001 産業技術硏究 Vol.21 No.B

        Significant improvements in bond strength between new and existing concrete can be achieved through the modification of the new concrete by latex modification. But, no test method has been adopted as a standard to measure the bond strength between the concrete used to repair and the substrate being repaired. The performance of old and the new concrete construction defends upon band strength between old and the new concrete. Current adhesion strength measurement method is inaccurate method that ignore effect of stress concentration by shape of specimens. Therefore, this research calculates stress concentration coefficient using finite element analysis and direction tensile strength test (pull-off test). The result shows that the required core depth is 2.5cm. Elastic modulus and overlay thickness do not influence in stress concentration.

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