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      • KCI등재

        와이어 하네스 단선 단락 선별을 위한 디지털 고장 검출 시스템 개발

        김선영,김아란,박재완,김하선,정재훈,김선영 사단법인 유공압건설기계학회 2023 드라이브·컨트롤 Vol.20 No.4

        Wire harness is a component for efficient control when electronic parts are required such as construction machinery and electric vehicles. With emerging issues such as autonomous driving and automation in construction, a wire harness composed of multiple cables has become an essential part because more electronic parts are required. However, when a wire harness failure occurs, systems can be stopped, accidents can occur, and economic damage can be significant. Therefore, in this paper, we developed a digital fault screening system that could easily and quickly diagnose faults in the wire harness. The principle of the developed system was to sequentially send pulse signals to the wire harness and use returned signals to perform fault detection. As a result of diagnosing faults using the developed failure detection system, a detection accuracy of 99.9 % was confirmed through the experiments.

      • RNS에 의한 고속 곱셈기 구성에 관한 연구

        김선영,김재공 대한전자공학회 1983 전자공학회지 Vol.20 No.5

        조합논리회로를 사용한 고속 RNS 곱셈기의 구성을 제안하였다. 연산시간과 하드웨어 절감을 결정하는 최적 moduti 선택조건에 대해서도 검토하였으며 RRNS에서는 magnitude index를 사용한 변형된 CRT로써 출력 변환하였다. 제안된 곱셈기의 추정시간은 파이프 라인없이 NRNS인 경우 31. 7ns, RRNS인 경우 47.95ns이었다. In this paper, an architecture for high-speed RNS multiplier were proposed by using com-binational logic circuit. The optimum conditions of moduli set which could be saved hardware and operation time were also considered. In the case of RRNS multiplier, output translation could be achieved effectively by means of the modified CRT with magnitude index. It is shown that the estimated multiplication time is about 31.7 ns in NRNS, whereas 47.95 ns in RRNS, respectively.

      • 사무직 남성 근로자의 건강통제위와 건강증진 생활양식과의 상관성

        김선영 가톨릭대학산업의학센타 산업의학연구소 1999 韓國의 産業醫學 Vol.38 No.3

        The purpose of this study was to identify the relationship between health locus of control and health promotion lifestyle practices among male office workers. Questionnaires method was used and collected from May 1 to June 1 in 1998. Subject were chosen by a convenient sampling from a stock company in Seoul. The instruments used for this study were Wallston and Wallston's Multidimensional Health Locus of control (MHLC) scale and Pender's Health Promotion Lifestyle Profile (HPLP). The data were analyzed through the SPSS program in the descriptive statistics, unpaired t-test, ANOVA, pearson correlation's coefficient and stepwise multiple regression. The results were as follows: 1. The mean score of Internal Health Locus of Control (IHLC) was 3.31, 2.67 for Powerful others Health Locus of Control (PHLC) and 2.24 for Chance Health Locus of Control(CHLC). 2. The mean score of HPLP was 2.56. the mean scores of the different dimensions were self actualization 2.92, interpersonal support 2.92, nutrition 2.87, stress management 2.53, exercise 2.17 and health responsibility 1.95. 3. The score of IHLC showed a significant difference in education and religion classified by each degree. The score of CHLC also showed a significant difference in each degree of religion and family size. 4. Health responsibility showed a significantly association according to age. Exercise showed a significantly association according to marital status and education, Nutrition showed a significantly association according to marital status, religion, and family size. Stress management showed a significantly association according to education. 5. The combination of IHLC and PHLC expained 31% of the variance of likelyhood to engage in health promotion behavior. 6. The health promotion lifestyle revealed significant positive correlation in CHLC and PHLC, but revealed negative correlation in CHLC. Significant correlation was found between 6 categories of HPLP and IHLC between health responsibility and CHLC. PHLC was significant correlated with self actualization, health responsibility interpersonal support and stress management.

      • Information Campaign

        金善英 이화여자대학교 한국문화연구원 1970 韓國文化硏究院 論叢 Vol.16 No.-

        Mass Communication 중에서 Information Campaign은 일반 대중들에게 어떠한 情報의 傳達내지 知識의 傳達, 習得의 效果를 기대하면서 많이 活用하고 있는 方法中의 하나이다. 보건교육가(Health Educator)는 어떠한 내용의 敎育活動이든지 사람들의 보건에 관한 態度, 믿음, 習慣과 行動의 變化를 기대하고 있기 때문에 Information Campaign을 위한 努力, 實用에 比하여 나타나는 効果面을 고려하기 위하여 몇가지 점을 검토했다. 保健敎育家는 對象이 되는 地域社會 住民의 知識(Knowledge), 態度(Attitude), 믿음(Beliefs), 習慣(Practices), 行動(Behaviour)의 變化를 갖어오게 하기 위해서는 地域社會 住民의 要求(needs), 動機(motive)를 細密히 事前에 알아서 그들의 모든 條件에 연관을 갖도록 情報가 제공되어야 하며 반대되는 情報는 될 수 있는 대로 피하는게 좋다. 保健敎育家는 어떤 情報에 대해서든지 편견을 갖는 그룹이 있고, 이들은 本來의 메세지의 意味를 잃게되며, 메세지 자체가 價値가 없도록 하는 傾向이 있으므로 이러한 그룹을 위해서는 Information Campaign 전에 個別的으로 접촉하도록하여야 한다. 또한 어느 그룹, 地域社會의 Opinion Leader가 主로 Mass Media에 관심을 갖고 읽고 듣고 간접적으로 주위의 이웃 친구들에게 영향을 미치게 되므로 어떠한 事業의 初期에 있어서는 Opinion Leader와 함께 일하며, 이들을 통한 情報가 주위의 사람들에게 더 쉽게 받아드려지도록 努力하여야 한다. 그러므로 Information Campaign은 사람의 意見, 態度, 믿음, 行動, 習慣의 變化를 갖어오게 하는데 있어서 기대했던 結果, 費用, 努力에 비하면 效果를 갖어올 수 없고 단지 情報를 알리고 흥미를 갖게하는 단계에서만이 매우 효과적이고 유용하다는 것은 保健敎育家는 알어야 한다. 단 Information Campaign이 效果的으로 유용하기 위해서는 이것으로 끝일것이 아니라 계속해서 變化를 갖어올 수 있는 保健敎育方法이 따라야 한다. I have discussed attention, perception and interpretation and effect of mass communication. The communication of facts is typically ineffective in changing opinions in desired directions against the force of audience predispositions: the stronger the predisposition, the less effective the communication of facts. The presentation is relatively ineffective in changing opinions, attitudes and behavior, The perception and interpretation of "facts" is self selective and the individual can "protect himself against facts he does not wish to believe. Nevertheless, people are more likely to accept (neutral) factual information from the media than to accept uncongenial editorial positions, interpretations or evaluations. As Health Educators, we have to be aware of these barriers which can create a real problem while informing the public. We have also the consider the efforts which we put into an Information Campaign such as energy and money and compare these with the results to be expected from such a program. A Health Educator should know the attitude, beliefs, needs and motives of the people he is dealing with. In order to make the message easily understandable it should be given in such away as to fit their frame of reference because people attent to information that it congenial to their prior attitudes and beliefs and avoid contrary information. The Health Educator also needs to realize that there will be certain groups who will be prejudiced toward the information. They would lose the original understanding of the message and so make the message invalid for themselves. These are the people who would not be benefitted from the information campaign and therefore should be dealt with separately by individual contact before the information campaign. It is important to know that mass media can be indirectly influenced through the opinion leaders. They are the persons who listen and read the mass media and pass information and influence their circle of relatives, friends and their acquaintances. Therefore, health educators need to work with opinion leaders in the beginning of the program. People tend to accept information they see as leading to social approval. Also, it is useful to identify relevant reference groups and try to gain their support early. The use of different media should be planned according to the educational level of the audience. Information campaign is useful and effective in the awareness stage of the adoption process.

      • KCI등재

        부대역 웨이팅 및 비트할당 알고리즘을 수정한 DSBC 음성 부호화기의 성능 개선

        김선영,김재공 한국통신학회 1990 韓國通信學會論文誌 Vol.15 No.11

        DSBC 음성 부호화기의 성능 개선에 관한 두 방법을 제안하였다. 첫째는 계산량이 많은 종래의 비트할당을 수정함으로써 계산량을 줄일 수 있는 방법이고 둘째는 비전송 대역 재생시 백색잡음 주입으로 인한 허상 문제를 제거하기 위한 부대역 웨이팅 방법이다. 시뮬레이션 겨로가 검토된 방법은 음성 출력의 성능 향상에 응용할 수 있음을 나타내었다. For the performance improvement in DSBC speech coder two possibilities are proposed. To reduce computational complexity the conventional dynamic bit allocation algorithm are modified. The subband weighting is also presented to avoid hissing noise effect when Gaussian noises are inserted in the regeneration of empty band. The simulation demonstrates that the discussed techniques may suitable for the performance enhancement at the speech output.

      • SCOPUSKCI등재

        수치화 열역학 물성도를 이용한 초임계 추출공정의 분리수율 및 에너지수요 분석

        김선영,이원홍,이광순,유기풍 한국화학공학회 1990 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.28 No.1

        디지타이저를 이용하여 도표로 발표된 물성 데이터들을 정밀하고 신속하게 수치데이터로 환산할 수 있는 알고리듬을 제안하였다. 수치자료화한 데이터를 이용하여 필요한 내삽이나 공정해석에 응용할 수 있는 가시적인 최적화방법에 대하여 검토하였다. Pitzer의 압축인자 도표를 수치화한 후 내삽한 데이터와 이를 원래의 수치데이터 값들과 비교한 결과 도표자료 내삽의 신뢰도를 확인할 수 있었다. 또한 CO₂에 의해 식용대두유를 추출하는 초임계 용매 추출공정에 응용한 결과 용해도 및 용매의 물성도표만으로 분리수율을 증가시키면서 조업에너지 소요량을 최소화할 수 있는 열역학적 최적화 방안을 제안하였다. We presented an algorithm that can constructs digitized databases from various graphical representations such as thermodynamic property charts by utilizing a desk-top digitizer properly. It is found that any types of usual model-oriented process calculation such as interpolations and process optimization can be equivalently accomplished with these digitized property charts. As the first illustration, the compressibility factors for any reduced temperature and pressure can be evaluated quickly and accurately by digitized Pitzer's Z-chart with linear and cubic spline interpolation methods. As the second illustration, optimum operation paths which give maximum separation yield with the least of energy demand can be sought with the digitized property chart for the supercritical extraction process of soybean oil with carbon dioxide.

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