• Polymer(Korea)
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• v.38 no.1
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• pp.69-73
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• 2014

In this study, polysaccharide-poly(vinyl alcohol) (PVA) hydrogels were prepared by using ${\gamma}$-ray and evaluated for potential application as an anti-inflammation patch. Ulmus davidiana var. japonica (UD), one of polysaccharides has been particularly used as an oriental remedy for the treatment of inflammation and ulcers. PVA as a biocompatible polymer and glycerin as a moisturizer were blended with the UD, and its hydrogels were prepared by radiation crosslinking. Characterizations for UD hydrogels were performed by using cytotoxicity assay, antioxidant activity test, and physicochemical test such as gel fraction ratio, and swelling behavior. The results showed that these UD hydrogels had excellent physical properties, anti-inflammation activity, and non-cytotoxicity on the cells. Therefore, these polysaccharide based-UD hydrogels can be effectively used as an inflammation patch.

• Land and Housing Review
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• v.13 no.1
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• pp.1-9
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• 2022

In 1991, the United Nations World Tourism Organization (UNWTO) declared "tourism accessible for all" recommending the practice of the right to enjoy tourism. According to the Ministry of Health and Welfare of Korea (2019), the disabled, who are the most vulnerable in tourism, accounted for 5.1% of the total population, and the number of the elderly over 65 is expected to increase to 20.3% by 2025. In particular, the need for customized policies has been raised as the proportion of disabled people among the elderly aged 65 and over continues to increase. Thus, this study identified the spatial characteristics of Universal Design (UD) tourist destinations considering the tourism vulnerable groups. Administrative units (425 dongs) in Seoul were used as spatial units for analysis. As a research method, first, a spatial model was specified through LM verification, and then spatial regression analysis was performed. As a result of the analysis, the spatial characteristics of UD tourist destinations were found to have positive (+) effects on the number of universally certified businesses, the number of restaurants, and the number of bus stops that were available to the vulnerable. It was confirmed that there are a large number of universal certified businesses, restaurants, and bus stops in dongs with UD tourist destinations. The findings will provide policy implications when promoting the right to enjoy tourism in the future and improving Korean universal design quality.

• Journal of Radiation Protection and Research
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• v.23 no.3
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• pp.123-138
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• 1998

Characteristics of element responses of Panasonic UD802 personnel dosimeters in the X, ${\beta}$, ${\gamma}$, ${\gamma}/X$, ${\gamma}/{\beta}$ and ${\gamma}$/neutron mixed fields were assessed. A dose-response algorithm has been developed to decide the high probability of a radiation type and energy by using the distribution in all six ratios of the multi-element TLD. To calculate the 4-element response factors and ratios between the elements of the Panasonic TLDs in the X, $\beta$, and $\gamma$ radiation fields, Panasonic’s UD802 TLDs were irradiated with KINS’s reference irradiation facility. In the photon radiation field, this study confirms that element-3 (E3) and element-4 (E4) of the Panasonic TLDs show energy dependent both in low- and intermediate-energy range, while element-1 (E1) and element-2 (E2) show little energy dependency in the entire whole range. The algorithm, which was developed in this study, was applied to the Panasonic personnel dosimetry system with UD716AGL reader and UD802 TLDs. Performance tests of the algorithm developed was conducted according to the standards and criteria recommended in the ANSI N13.11. The sum of biases and standard deviations was less than 0.232. The values of biases and standard deviations are distributed within a triangle of a lateral value of 0.3 in the ordinate and abscissa, With the above algorithm, Panasonic TLDs satisfactorily perform optimum dose assessment even under an abnormal response of the TLD elements to the energy imparted. This algorithm can be applied to a more rigorous dose assessment by distinguishing an unexpected dose from the planned dose for the most practical purposes, and is useful in conducting an effective personnel dose control program.

• The monthly packaging world
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• s.197
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• pp.88-93
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• 2009

• The monthly packaging world
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• s.252
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• pp.72-75
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• 2014

• The monthly packaging world
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• s.242
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• pp.72-79
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• 2013

• Bulletin of the Korean Chemical Society
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• v.31 no.3
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• pp.624-629
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• 2010

The synthesis and evaluation of a novel calix[4]arene-based fluorescent chemosensor 1 for the detection of I. is described. The fluorescent changes observed upon addition of various anions show that 1 is selective for I. over other anions. Addition of I. results in ratiometric measurements with 1 : 1 complex ratio.

• ETRI Journal
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• v.40 no.2
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• pp.227-236
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• 2018

Ultra-dense small cell networks (UD-SCNs) have been identified as a promising scheme for next-generation wireless networks capable of meeting the ever-increasing demand for higher transmission rates and better quality of service. However, UD-SCNs will inevitably suffer from severe interference among the small cell base stations, which will lower their spectral efficiency. In this paper, we propose a software-defined networking (SDN)-based hierarchical agglomerative clustering (SDN-HAC) framework, which leverages SDN to centrally control all sub-channels in the network, and decides on cluster merging using a similarity criterion based on a suitability function. We evaluate the proposed algorithm through simulation. The obtained results show that the proposed algorithm performs well and improves system payoff by 18.19% and 436.34% when compared with the traditional network architecture algorithms and non-cooperative scenarios, respectively.

• Korean Journal of Child Studies
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• v.20 no.1
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• pp.147-164
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• 1999

The purpose of this study was to investigate (1) intergenerational transmission from mother's internal working model of relationships formed in her childhood and infant's attachment patterns and (2) the associations among maternal working models, maternal sensitivity, and infant attachment patterns. The subjects were twenty 12- to 20-month-old infants and their mothers. The Adult Attachment Interview (1996) was used to assess mother's internal work model of relationships. Interviews were audio-recorded and transcribed verbatim. Each dyad was videotaped in the modified Ainsworth Strange Situation(1978) and filmed for 3 minutes in the Questionaire Situation of Smith and Pederson (1988). Mothers were classified as autonomous(F), dismissing(Ds), preoccupied(E), or unresolved/disorganized(Ud). Infants were classified as secure(B), insecure-avoidant(A), or insecure-resistant(C). Exact A/B/C/D and Ds/F/E/Ud agreement was observed in 55% of the dyads. Maternal sensitivity was related to infant attachment patterns but not to maternal working models.

• Annual Conference on Human and Language Technology
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• 2018.10a
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• pp.417-421
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• 2018

The Universal Dependencies 프로젝트는 현재 71개 언어, 122개 Treebank로 이루어져 있으며, 병렬 언어 처리를 위해 여러 언어에 적용할 수 있는 형태적, 구문론적 특성을 찾는 것을 목표로 한다. 본고는 UD의 형태 태그셋인 Universal POS를 살펴보고, 한국어의 기존 형태 태그셋을 UPOS로 자동 변환하여 적용하는 방안을 제안한다. 영어와 같은 굴절어를 중심으로 구축된 UPOS 체계를 교착어에 속하는 한국어에 적용하기 위해서는 UPOS의 개별 표지와 21세기 세종계획 형태 주석 표지 결합체 간의 일대다 사상을 시도해야 한다.