• Proceedings of the Korean Society of Dyers and Finishers Conference
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• 2003.04a
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• pp.52-55
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• 2003

단일섬유에 의한 제품의 생산은 줄어들고 복합화에 의한 섬유의 제품이 급속한 속도로 진행되고 있으며, 또한 섬유의 개질을 통해 장점은 더욱 부가시키고 단점은 감소시키는 개질 섬유의 사용이 계속적으로 증가하고 있다 그 중 캐티온 가염형 폴리에스테르(이하 CDP섬유)는 일반 폴리에스테르가 가지지 못하는 심오하고 매력적인 색상을 지닌 염기성염료를 흡착 할 수 있다는 장점을 가지고 있다. (중략)

• Journal of Korean Electronics
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• v.6 no.8
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• pp.24-27
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• 1986

• Product Safety
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• s.42
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• pp.53-60
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• 1996

• Journal of Advanced Navigation Technology
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• v.13 no.2
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• pp.208-213
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• 2009

This paper presents an adaptive call admission control(CAC) algorithm based on a target handoff call dropping probability in mobile wireless environments. This method uses a neural network for predicting and reserving the bandwidth demands for handoff calls and new calls. The amount of bandwidth to be reserved is adaptively adjusted by a target value of handoff call dropping probability(CDP). That is, if the handoff CDP exceeds the a target CDP value, the bandwidth to be reserved should be increased to reduce the handoff dropping probability below a target value. The proposed method is intended to prevent from increasing handoff call dropping probability when bandwidth to be reserved is not enough for handoff calls due to an uncertain prediction. Our simulations compare the handoff CDP in proposed CAC with that of an existing CAC. Results show that the proposed method sustains handoff call dropping probability below our target value.

• Korean Medical Education Review
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• v.14 no.1
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• pp.25-36
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• 2012

For decades medical educators have continually emphasized medical professionalism, which is reflective response to the challenges of a rapidly changing medical environment. This study aimed to review the experience of implementing medical professionalism education at Yonsei University College of Medicine (YUCM). YUCM introduced a new curriculum in 2004 designed by Curriculum Development Project 2004 (CDP2004), a project that was launched in 2001. CDP2004 reorganized lectures as organ-based integrated lectures, introduced an introductory course for clinical medicine and medical humanities courses for premedical and medical students. Problem-based learning (PBL), elective courses, and self-study sessions in the afternoon were implemented in order to equip students with a self-directed learning attitude as medical professionals. Professors were asked by the CDP2004 curriculum to spend more time on student education and to adopt new teaching methods. Experiences of the CDP2004 curriculum reveals 1) difficulty of motivating professors to be PBL tutors 2) students' dissatisfaction with the medical humanities course (major critique was that the course was impractical and unrealistic), and 3) students' optimistic understanding about their future role as medical professionals in influencing and helping people in spite of their perception of the general medical environment not as promising. To foster professionalism, the following are necessary in our experiences: 1) faculty development of medical humanities and medical professionalism, 2) establishment of an environment throughout the whole institution to support medical professionalism education and to integrate the concept into praxis, 3) emphasis on the fact that medical professionalism education is not contradictory to biophysical medical education.

• International Journal of Contents
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• v.14 no.1
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• pp.39-44
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• 2018

Today, cars have developed into intelligent automobiles that combine advanced control equipment and IT technology to provide driving assistance and convenience to users. These vehicles provide infotainment services to the driver, but this does not improve the safety of the driver. Accordingly, V2X communication, which forms a network between a vehicle and a vehicle, between a vehicle and an infrastructure, or between a vehicle and a human, is drawing attention. Therefore, various techniques for improving channel estimation performance without changing the IEEE 802.11p standard have been proposed, but they do not satisfy the packet error rate (PER) performance required by the C-ITS service. In this paper, we analyze existing channel estimation techniques and propose a new channel estimation scheme that achieves better performance than existing techniques. It does this by applying the updated matrix for the data pilot symbol to the construct data pilot (CDP) channel estimation scheme and by further performing the interpolation process in the frequency domain. Finally, through simulations based on the IEEE 802.11p standard, we confirmed the performance of the existing channel estimation schemes and the proposed channel estimation scheme by coded PER.

• Journal of Information Management
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• v.26 no.2
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• pp.1-36
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• 1995

The purpose of this study is to analyze fundamental six functions of DIALOG, STN, ORBIT and CDP and then investigate the similarities of the four systems in terms of the functions, and also to compare the commands of these systems with ISO 8777 which is an international standard of command language for the interactive text searching. It was found that there are few differences between the four systems and ISO 8777 in functional aspects, but few similarities in command expression aspects. In addition, it was proven that these four systems are more effective than ISO 8777 in some commands.

• Journal of the Korean Home Economics Association
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• v.38 no.10
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• pp.27-43
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• 2000

The CDP in Korea has been enforced for conserving resources and reducing environmental pollution since March, 1999. Therefore this thesis aims to investigate the degrees of consumer participation(CP), recognition and support, and to analysis of demographic variables, consumers' psychology, and attitudes which may influence the degrees of CP recognition, and support for the CDP. The results were as follows: First, the time of surrey was found to be statistically significant in consumer recognition and support. The degree of recognition was the lowest in first time. And the degree of consumer support was the highest in first time. Second, education, employment status and house shape were found to be statistically significant. The degree of consumer recognition was the highest among junior college graduates. The employed group was found to be the highest in the degree of participation. Third, the significant factors which influenced the degree of recognition was the time of survey, the perceived difficulty, effectiveness of the Consumer Deposit Program. The perceived difficulty, the time of survey were found to be related with the degree of consumer support. The most influential variables which influenced the degree of consumer participation were house shape, the perceived effectiveness, the degree of resource recycling, job and the degree of consumer recognition.

• Korean journal of applied entomology
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• v.25 no.4 s.69
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• pp.221-228
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• 1986

An empirical model to predict initial disease occurrence and subsequent progress of Alternaria leaf spot was constructed based on the modified degree day temperature and frequency of rainfall in three years field experiments. Climatic factors were analized 10-day bases, beginning April 20 to the end of August, and were used as variables for model construction. Cumulative degree portion (CDP) that is over $10^{\circ}C$ in the daily average temperature was used as a parameter to determine the relationship between temperature and initial disease occurrence. Around one hundred and sixty of CDP was needed to initiate disease incidence. This value was considered as temperature threshhold. After reaching 160 CDP, time of initial occurrence was determined by frequency of rainfall. At least four times of rainfall were necessary to be accumulated for initial occurrence of the disease after passing temperature threshhold. Disease progress after initial incidence generally followed the pattern of frequency of rainfall accumulated in those periods. Apparent infection rate (r) in the general differential equation dx/dt=xr(1-x) for individual epidemics when x is disease proportion and t is time, was a linear function of accumulation rate of rainfall frequency (Rc) and was able to be directly estimated based on the equation r=1.06Rc-0.11($R^2=0.993$). Disease severity (x) after t time could be predicted using exponential equation $[x/(1-x)]=[x_0/(1-x)]e^{(b_0+b_1R_c)t}$ derived from the differential equation, when $x_0$ is initial disease, $b_0\;and\;b_1$ are constants. There was a significant linear relationship between disease progress and cumulative number of air-borne conidia of Alternaria mali. When the cumulative number of air-borne conidia was used as an independent variable to predict disease severity, accuracy of prediction was poor with $R^2=0.3328$.

• 지반과기술
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• v.7 no.3
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• pp.58-59
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• 2010