• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2004년도 ICCAS
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• pp.772-776
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• 2004

This paper proposes an interference avoidance approach for Constraint-Based Routing (CBR) algorithm in the Multi-Protocol Label Switching (MPLS) network. The MPLS network itself has a capability of integrating among any layer-3 protocols and any layer-2 protocols of the OSI model. It is based on the label switching technology, which is fast and flexible switching technique using pre-defined Label Switching Paths (LSPs). The MPLS network is a solution for the Traffic Engineering(TE), Quality of Service (QoS), Virtual Private Network (VPN), and Constraint-Based Routing (CBR) issues. According to the MPLS CBR, routing performance requirements are capability for on-line routing, high network throughput, high network utilization, high network scalability, fast rerouting performance, low percentage of call-setup request blocking, and low calculation complexity. There are many previously proposed algorithms such as minimum hop (MH) algorithm, widest shortest path (WSP) algorithm, and minimum interference routing algorithm (MIRA). The MIRA algorithm is currently seemed to be the best solution for the MPLS routing problem in case of selecting a path with minimum interference level. It achieves lower call-setup request blocking, lower interference level, higher network utilization and higher network throughput. However, it suffers from routing calculation complexity which makes it difficult to real task implementation. In this paper, there are three objectives for routing algorithm design, which are minimizing interference levels with other source-destination node pairs, minimizing resource usage by selecting a minimum hop path first, and reducing calculation complexity. The proposed CBR algorithm is based on power factor calculation of total amount of possible path per link and the residual bandwidth in the network. A path with high power factor should be considered as minimum interference path and should be selected for path setup. With the proposed algorithm, all of the three objectives are attained and the approach of selection of a high power factor path could minimize interference level among all source-destination node pairs. The approach of selection of a shortest path from many equal power factor paths approach could minimize the usage of network resource. Then the network has higher resource reservation for future call-setup request. Moreover, the calculation of possible path per link (or interference level indicator) is run only whenever the network topology has been changed. Hence, this approach could reduce routing calculation complexity. The simulation results show that the proposed algorithm has good performance over high network utilization, low call-setup blocking percentage and low routing computation complexity.

• 한국식품과학회지
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• 제25권6호
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• pp.672-676
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• 1993

변성전분과 카라기난을 혼합한 혼합안정제의 식품산업으로의 응용성을 확대해 나갈 목적으로 국내외 시판중인 몇종의 변성전분과 카라기난 종류에 따른 과일시럽 및 호상요구르트에 첨가시 물성의 특서에 대해 검토하였다. 변성전분 4종(Sun Kolguard, Sun Registar, Mira Cleer340, Maps449)은 5% 수용액 상태에서 $66^{\circ}C$에서 모구 호화하였으며 호화후의 점도는 Sun Kolguard가 가장 높았다. 또한, Sun Kolguard와 카라기난을 각각 혼합하였을 때 점도상승효과는 5% 수용액 상태에서 Sun Kolguard와 카라기난과의 비율이 90 : 10일 때 가장 컸으며 iota가 lambda보다 더 큰 상승효과를 나타내었다. 과일 시럽에 안정제로서 변성전분, 펙틴 및 카라기난을 각각 또는 혼합첨가하여 제조한 과일(복숭아)시럽의 점도를 비교한 결과, 변성전분 중에서 Sun Kolguard가 가장 높았고, sun Kolguard에 카라기난이나 펙틴을 혼합 사용했을 때 kappa 카라기난, 펙틴, iota 카라기난 등이 점도가 높게 나타났다. 그러나 kappa 카라기난은 낮은 농도에서 gel화 하고, 펙틴은 충격에 의해 gel이 파괴될 경우 점도가 상당히 낮아지는 특징으로 인해 iota 카라기난이 시럽 제조용으로 가장 적합하였다. Sun Kolguard와 iota 카라기난의 혼합(90 : 10)시 전분의 호화온도는 $82^{\circ}C$ 부근이었으며, 냉각시 점도상승력이 Sun Kolguard 단독사용시 보다 훨씬 우수하였다. 시럽을 첨가한 호상요구르트의 저자조건에 따른 점도변화를 측정한 결과, Sun Kolguard와 iota 호상요구르트가 온도변화에 따라 점도변화가 적고 높은 호상요구르트가 온도변화에 따라 점도변화가 적고 높은 점도를 나타냄으로써 호상 요구르트 제조에 적합한 시럽에 첨가되는 혼합 안정제로 생각되었으며, 비율에 있어서는 Sun Kolguard와 iota carrageenan을 90 : 10으로 섞는 것이 좋을 것으로 생각 되었다.

• 천문학회지
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• 제49권5호
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• pp.209-223
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• 2016

We present analyses of ~1250 variable sources identified in a 20 square degree field toward NGC 2784 by the KMTNet Supernova Program. We categorize the variable sources into three groups based on their B-band variability. The first group consists of 31 high variability sources with their B-band RMS variability greater than 0.3 magnitudes. The second group of medium variability contains 265 sources with RMS variability between 0.05 and 0.3 magnitudes. The remaining 951 sources belong to the third group of low variability with an RMS variability smaller than 0.05 magnitudes. Of the entire ~1250 sources, 4 clearly show periods of variability greater than 100 days, while the rest have periods shorter than ~51 days or no reliable periods. The majority of the sources show either rather irregular variability or short periods faster than 2 days. Most of the sources with reliable period determination between 2 and 51 days belong to the low-variability group, although a few belong to the medium-variability group. All the variable sources with periods longer than 35 days appear to be very red with B - V > 1.5 and V - I > 2.1 magnitudes. We classify candidates of 51 Cepheids, 17 semi-regular variables, 3 Mira types, 2 RV(B) Tauri stars, 26 eclipsing binary systems and 1 active galactic nucleus. The majority of long-term variables in our sample belong to either Mira or semi-regular types, indicating that long-term variability may be more prominent in post-main sequence phases of late-type stars. The depth of the eclipsing dips of the 26 candidates for eclipsing binaries is equivalent to ~0.61 as the average relative size of the two stars in the binary system. Our results illustrate the power of the KMTNet Supernova Program for future studies of variable objects.

• 한국육종학회지
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• 제43권6호
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• pp.524-527
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• 2011

'프리티유' 품종은 경기도농업기술원에서 2008년도에 육성한 절화용 장미 신품종이다. 이 품종은 2005년도에 화색이 적색이며 꽃잎수가 많은 스탠다드 장미 'Red Sandra'를 모본으로 하고 분홍색 스탠다드 장미 'Mira Bai'를 부본으로 교배하여 2006년도에 실생을 양성하였다. 화색과 화형이 우수한 27계통을 예비선발 하였으며 2006~2008년에 1, 2, 3차 특성검정과 품평회 결과 절화특성이 우수한 KR05-2-1계통(Gyeonggi R1-15)을 최종 선발하였다. 화색은 분홍색 꽃잎에 바깥쪽 가장자리가 적색인 복색(주요색 Red Group 52B, 2차색 Red Group 50A)이다. 스탠다드 형태로 개화하고 화형은 반고심형이다. 화폭은 11.7 cm이며 화고가 5.0 cm로 대형화이고, 꽃잎수는 32.1매이며 향기는 중간정도이다. 생육속도가 매우 빨라 개화소요일수는 평균 45.1일이며 엽색은 녹색(Green Group 139A)이며 엽 광택은 약한 편이며 줄기의 가시 발생 정도는 중간정도이다. 흰가루병 발생정도는 중간 정도이고 년간 절화수량은 142.8 본/$m^2$이고 절화장은 69.2 cm이며 줄기직경은 6.8 mm이고 절화중이 41.2 g이다. 엽수는 10매이며 절화수명은 12.3일이다.

• 복식문화연구
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• 제21권3호
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• pp.348-360
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• 2013

This research is implemented to shed new light on the essence of Korean sentiments, aesthetic sense and restructure it in modern ways. In particular, applying the current images of traditional Korean village in Jeonju to neckties is focused on the purpose of globalizing the industrialization of Korean traditional sceneries and Korean image products. Adobe Photoshop CS program was used to develop necktie designs containing the images of the traditional Korean village. To make artworks, the Digital Textile Printing System that is an environment-friendly printing method was used. Moreover, Hanji yarn fabric was adopted for them so as to use Korean materials. The total number of developed designs is eight and neckties for men were made by altering images of the traditional Korean village in modern ways. According to the research results, required are more investment and self-development for proper understandings on our traditional cultural images and their development from now on. Moreover, in my view, customers' desires must be met by comprehending public consciousness, trends and environments to meet customer's desires. Furthermore, higher value-added products must be created by using Hanji yarn and images of traditional Korean villages by distributing high quality designs that will satisfy customers' desires and psychology, producing small quantities of products with various designs and colors.

• Applied Science and Convergence Technology
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• 제24권5호
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• pp.184-189
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• 2015

We report a simple way to enhance the size gradient of an imprinted nanopattern through oxygen plasma etching under a nonuniform magnetic field. A sample substrate was placed next to a magnet, and then a nonuniform magnetic field condition was formed around the sample. Using oxygen plasma etching, a line pattern having an initial width of 273 nm was gradually modified from 248 nm at one end to 182 nm at the other end. Controlling the arrangement of the magnet and sample, we could induce a triangular shape size gradient. We verified that the gradually modified nanopatterns we produced are applicable to continual optical property control, showing a possibility to be utilized for optical components such as gratings and polarizers.

• 복식문화연구
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• 제20권5호
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• pp.736-752
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• 2012

The purpose of this study was to identify the effectiveness of fashion banner advertising according to university students' attitudes toward internet advertisement(IA). Factors of IA were information, entertainment, negative, benefit, and topicality. A self-administered questionnaire was used for data collection. Subjects(n=678) were participated in the survey and they were segmented into IA positive group, IA intermediate group, IA indifferent group, and IA negative group. IA positive group included more women with higher household income and clothing expenditure. They preferred shopping at open market on-line malls. IA intermediate group included more women with lower income and clothing expenditure. They preferred shopping at on-line malls. IA indifferent group included more men with lower income and less clothing expenses. Banner advertisement with mixed appealing was the most effective to the university students in terms of preference and click and purchase intention. IA positive group showed the highest level of preference and click and purchase intention to the banner with rational appealing, banner with emotional appealing, and the banner with mixed appealing. IA indifferent group showed the lowest level. IA intermediate group showed a positive attitude to the banner with rational appealing and mixed appealing. IA negative group showed the lowest level of click and purchase intention to the banner with rational appealing.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2015년도 제49회 하계 정기학술대회 초록집
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• pp.233-233
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• 2015

We report on a simple method for inducing physical and chemical property-gradient on nanoimprinted patterns by intensity-regulated plasma treatment under caved sample stage. As for the size gradient, a line pattern having a linewidth of 294.9 nm was etched to have gradually varying width from 277.4 nm to 147.9 nm. Modified pattern was proven to be adaptable to replica stamp for reversal patterning. To investigate the wettability gradient, imprinted nanopatterns were coated with fluoroalkylsilane to increase the hydrophobicity, and the surface was modified to have gradually varying wettability from hydrophobic to hydrophilic (contact angle was ${\sim}160^{\circ}$ to ${\sim}5^{\circ}$ on a single chip). This method is expected to be applicable to the selective adsorption of biological entities and hydrodynamic manipulation of liquid droplets for the pumpless microfluidics.

• 기본간호학회지
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• 제24권4호
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• pp.286-295
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• 2017

Purpose: The World Health Organization identifies spiritual care as a component of health and thus nursing care. There is a need to identify how self-esteem, communication and existential well-being affects spiritual care competence in nurses. Methods: The participants were 189 nurses in G metropolitan city. The survey was conducted from March 21 to April 8, 2016, with a self-report questionnaire. Data were analyzed using descriptive statistics, independent t-test, one-way ANOVA, $Scheff{\acute{e}}$ test, Pearson correlation coefficient and stepwise multiple regression analysis using SPSS version 21.0. Results: Differences in spiritual care competence were statistically significant according to education level, work department, position, having received spiritual care education, experience of providing spiritual care, experience of asking religionist to provide spiritual care for a patient and recognition of need for spiritual care. The spiritual care competence of nurses showed a significantly positive correlation with self-esteem, communication and existential well-being. Factors influencing spiritual care competence were communication, experience of providing spiritual care and existential well-being which explained about 37.5% of spiritual care competence. Conclusion: It's necessary for nurses to develop intervention programs to strengthen spiritual care competence through improving communication, providing opportunities for spiritual care and existential well-being.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2013년도 제44회 동계 정기학술대회 초록집
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• pp.650-650
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• 2013

Although imprinted nanopatterns of organic polymer can be modified by the heat treatment [1], it generally requires high process temperatures and is material-dependent since the heat-induced mass loss of the organic polymer is greatly affected by its chemical characteristics. When oxygen is added during the annealing process, one can reduce the process temperature as well as the dependence of the materials. With the oxygen, line width reduction of a polymer (SU-8) patterns could be accomplished at temperature of as low as $250^{\circ}C$ which was not possible in the heat only process. This oxidative line width reduction can be dramatically promoted with the introduction of oxygen plasma. The oxygen plasma, with its highly-reactive oxygen species, vigorously etches away the organic materials, proven to be extremely effective line with reduction method. It is, however, very hard to control the extent and homogeneity of the etching, particularly of very fine patterns. Here, we report an effective and reliable line width reduction method of imprinted nanopatterns by combined plasma and heat treatment. The merits of this process include the reduction of process temperature, time and material-dependence.