• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제3권5호
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• pp.67-78
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• 1997

Recently, hospital architecture is in the transition period which faces a great change. Patients' demands on medical services have been changing and hospitals have been feeling the need to innovate their facilities in order to prepare for the upcoming challenges in the field such as global competition, market opening, etc. In addition, every hospitals requires the creative and novel design which is different from the conventional concept to deal with various circumstances. Accordingly, various space arrangements are proposed against the past unified hospital type. This study is designed to consider and evaluate the prospects of hospital architecture by analyzing the space allocation type of representative hospitals which are being recently constructed in Korea.

• 대한의용생체공학회:의공학회지
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• 제9권1호
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• pp.37-46
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• 1988

Synthetic biodegradable polymers are of great interest for biomedical applications such as surgical sutures and drug delivery systems. The copolymers of ${alpha}-amino$ acids and ${alpha}-hydroxy$ matrices having the required permeability for drugs. Poly (glycine.co-lactic acid) and poly (glycine-co-glycolic acid) have been synthesized by ring-opening polymerization. Morpholine-2, 5-diane, lactide, and glycolid have been used as starting materials for polydepsipeptides. The synthesized monomers and copoylmers have been identified by NMR and FT-lR spectrophotometer. The thermal properties and glass transition temperatures ($T_g$) of the copolymers have been measured by differential scanning calorimetry. The $T_g$ values of poly (glycine-co-lactic acid) and poly (glycine co.glycolic acid) are increased with increasing mole fraction of morpholine-2, 5-dione in the copolymers.

• Structural Engineering and Mechanics
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• 제84권4호
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• pp.479-488
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• 2022

Aiming to examine different failure patterns in multistory URM walls, two 1/3 scaled three-story and three-bay URM models were designed for the quasi-static loading tests to contrastively investigate the failure processes and characteristics of the multistory URM walls. Two different failure responses were observed with special attention paid to the behavior of spandrel-failure mode. By evaluating the seismic performance and deformation behavior of two test walls, it is demonstrated that spandrels, that haven't been properly designed in some codes, are of great significance in the failure of entire URM walls. Additionally, compared with pier-failure mode, spandrel-failure for multistory URM building is more reasonable and advisable as its effectively participation in energy dissipation and its efficiently improvement on seismic capacity and deformation in the overall structure. Furthermore, the experimental results are beneficial to improve seismic design and optimize reinforcement method of URM buildings.

• 한국지능정보시스템학회:학술대회논문집
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• 한국지능정보시스템학회 2005년도 공동추계학술대회
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• pp.295-303
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• 2005

Semantic Web and its related technologies have been opening the era of information sharing via Web. In the meantime, there are several huddles to overcome toward the new era and one of the major huddles is information integration issue unless we build and use a single unified but huge ontology which address everything in the world. Particularly in e-business area, information integration problem must be a great concern in search and comparison of products from various internet shopping sites and e-marketplaces. To overcome such an information integration problem, we propose an ontology driven mapping algorithm between heterogeneous product classification and description frameworks. We also perform comparative evaluation of the proposed mapping algorithm against a well-known ontology mapping tool, PROMPT.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 1997년도 Proceedings of KIN-CIN Joint Symposium 97 on Safety of Shipping and History of Maritime Communication between Korea and China around 9th Century
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• pp.35-41
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• 1997

China has integrated maritime safety system which positively and effectively ensures safe navigation and environmental protection. This paper gives brief account on maritime safety rules and regulations, adminstrations and management mechanism, navigation aids and facilities, maritime communication and GMDSS etc. China is a developing country with fast economical growth. With a long coastline of 18,000 kilometers, and 5,000 more islands, China has a fairly developed shipping industry. China also sits in IMO Council as A member. In China , there are over 200 ports with an annual hadnling capacity of over 10,000 tons of cargo ; there are over 4,000 coasters and ocean-going ships with more than 3 million seafarers of which 1/3 being officers ; there are an aggregate gross tonnage 17 million gt for merchant ships. China ranks No.5 shipping country in the world as shown by Lloyd's Maritime Information Services Ltd. 1995. The Chinese shipping industry plays an important role in both domestic transportation and foreign trade. The Chinese government always attaches great importance to maritime safety . Since 1949, and from the adoption of reform-opening policy, China has gradually formed an integrated maritime safety system.

• 대순사상논총
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• 제33집
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• pp.257-286
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• 2019

이 글은 기존의 신정론 유형들을 활용하여 대순진리회의 신정론을 기술한 것이다. 대순진리회의 세계관 내에서 신정론은 다음과 같이 기술될 수 있다: "대순진리회 세계관에서 악과 고통의 문제는 상극의 문제로 대치되어 기술된다. 대순진리회의 신정론은 선천, 그리고 천지공사 이후부터 개벽 직전까지 후천으로 넘어가는 과도기에만 논의할 문제이다. 후천에는 상극이 없기에 고통이 존재하지 않고, 신정론도 논할 필요가 없다. 선천과 과도기의 신정론은 각각 다르게 조명되어야 한다. 우주는 최고신이 전체적인 법칙을 주관하고, 실제 세부 운영은 하부 신명들이 담당하는 시스템으로 되어있었다. 우주의 운행에 있어서 만물은 상극과 상생이라고 하는 법칙을 갖도록 만들어졌다. 상생은 서로가 서로를 돕는 것, 상극은 서로가 서로를 극하는 것을 의미한다. 고통이 존재하는 이유는 상극이 존재하기 때문이다. 그런데 선천은 상극이 지배하는 시기였다. 그 이유는 성장과 발전이라는 가치를 구현해야 하기 때문이었다. 상극은 결코 악의적인 의도에서 마련되어진 것은 아니었다. 즉 상극은 본래 나쁘고 잘못된 것이라는 도덕적 가치를 지니지 않은 것이었다. 그러나 상극의 지배가 오래 지속되자 상극으로 인해 발생한 원한이 풀리지 못하고 누적되어갔고, 우주의 법칙을 운용하던 명부의 신명들도 종종 착오와 실수를 일으키곤 했다. 이것이 점점 심화되자 세상은 엄청난 재앙을 맞이하게 되었다. 이상의 상황을 '이원적 상극 신정론'이라고 명명할 수 있다. 신명들로부터 우주가 심각한 위기에 빠졌음을 보고받은 최고신은 우주의 실정을 살펴본 뒤 증산이라는 한 인간으로 강세하였다. 그가 천지공사를 시행하면서 개벽은 예정되었고 그에 따라 과도기가 시작되면서 신정론도 다르게 묘사된다. 그것은 개벽 때 대심판을 받는다는 사실, 그로써 신명·인간을 포함한 모든 악한 존재들은 소멸하고 지상에 천국이 열린다는 사실, 개벽이 도래하기 전까지 각자가 해원을 시도한다는 사실을 주 내용으로 한다. 이것을 '말세론적 해원 신정론'이라고 부를 수 있다. 대순진리회의 신정론은 이상 2개의 신정론을 핵심으로 삼으면서, 상황에 따라 영혼 성장 신정론, 자유의지 신정론, 배상 신정론, 내세적 신정론, 카르마 신정론, 참여 신정론, 교류 신정론 등을 중첩적으로 포함하고 있다."

• 복식
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• 제52권6호
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• pp.51-69
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• 2002

The purpose of this study was to classify the body shapes. exclusive of size and corpulence factors of more than 60-year old elderly women by distinctions, and to investigate the visual effects of combination of ensemble suit details. For the body shape classification, the factor analysis and cluster analysis were performed : the mean value difference of numeral values for classified types were tested by ANOVA : and the follow-up test was conducted by the Duncan's multiple ranged test. The data analysis for visual effects evaluated by a multiple ranking test was analysed by mean. paired t-test, ANOVA and Duncan's multiple ranged test. The results are summarized as follows : 1. The followings are the types of body shape according to the shape factors of the front line of body for elderly women. The distinctions of the front li e of elderly women's body could be presumed; that was, Body typeⅠ was a comparatively well-balanced body type, Body type Ⅱ was close to an average body type. and Body type In was a severely corpulent body type. 2. The followings are the results on the physical visual effects inducing the constituents of clothing type. 1) The neckline·collar types of a jacket have a great influence on the visual effects of the upper body, and orderly. the tailored collar. soutien collar, and round neckline had positive influence on the visual effects in the upper body. 2) The pleat types of one-piece dress had positive influence on the visual effects in the lower body in the order of gored type, pleats type, and gathered type. Also. the balance in the lower body had more influence on the overall balance of the clothing compared to the constituents of clothing type such as neckline collar type or opening line. 3) It showed that whether there is the front opening line of a jacket influenced on the visual effects of all categories.

• International Journal of Concrete Structures and Materials
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• 제10권2호
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• pp.163-175
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• 2016

This paper presents a revised procedure for computation of double-K fracture parameters of concrete split-tension cube specimen using weight function of the centrally cracked plate of finite strip with a finite width. This is an improvement over the previous work of the authors in which the determination of double-K fracture parameters of concrete for split-tension cube test using weight function of the centrally cracked plate of infinite strip with a finite width was presented. In a recent research, it was pointed out that there are great differences between a finite strip and an infinite strip regarding their weight function and the solution of infinite strip can be utilized in the split-tension specimens when the notch size is very small. In the present work, improved version of LEFM formulas for stress intensity factor, crack mouth opening displacement and crack opening displacement profile presented in the recent research work are incorporated. The results of the double-K fracture parameters obtained using revised procedure and the previous work of the authors is compared. The double-K fracture parameters of split-tension cube specimen are also compared with those obtained for standard three point bend test specimen. The input data required for determining double-K fracture parameters for both the specimen geometries for laboratory size specimens are obtained using well known version of the Fictitious Crack Model.

• Structural Engineering and Mechanics
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• 제59권2호
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• pp.261-275
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• 2016

Effect of silica fume on fresh properties, compressive strength at 28 days and fracture behavior of fly ash concrete composite were studied in this paper. Test results indicated that the fluidity and flowability of fly ash concrete composites decreased and fly ash concrete composite are more cohesive and appear to be sticky with the addition of silica fume. Addition of silica fume was very effective in improving the compressive strength at 28 days of fly ash concrete composite, and the compressive strength of fly ash concrete composite has a trend of increase with the increase of silica fume content. Results also indicated that all the fracture parameters of effective crack length, fracture toughness, fracture energy, the critical crack opening displacement and the maximum crack opening displacement of fly ash concrete composite decreased with the addition of silica fume. When the content of silica fume increased from 3% to 12%, these fracture parameters decreased gradually with the increase of silica fume content. Furthermore, silica fume had great effect on the relational curves of the three-point bending beam specimen. As the silica fume content increased from 3% to 12%, the areas surrounded by the three relational curves and the axes were becoming smaller and smaller, which indicated that the capability of concrete composite containing fly ash to resist crack propagation was becoming weaker and weaker.

• 한국환경과학회지
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• 제25권12호
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• pp.1689-1699
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• 2016

The growth conditions of planted trees, invasion of nuisance herbaceous species, competition between species, and effects of erosion control were monitored over five years in a riparian greenspace in Gapyeong County that was established through multilayered and grouped ecological planting. Of 156 trees planted in the upper and middle layers, 5.8% died. This tree death was attributed to poor drainage or aeration in the rooting zone from the clay-added root ball and too deep planting as well as a small-sized root ball and scanty fine roots. Of all the trees, 21.6% grew poorly due to transplant stress in the first year after planting, but they started to grow vigorously in the third year. This good growth was largely associated with soil improvement before planting, selection of appropriate tree species based on growth ground, and control of dryness and invasive climbing plants through surface mulching and multilayered/grouped planting. Mixed planting of fast-growing species as temporary trees was desirable for accelerating planting effect and increasing planting density. Thinning of fast-growing trees was required in the fifth year after planting to avoid considerable competition with target species. To reduce the invasion of herbaceous and climbing plants that oppress normal growth of planted trees, higher density planting of trees (crown opening of about 15%), woodchip mulching to a 10-cm depth, and edge planting 2 m wide were more effective than lower density planting (crown opening of 70%), no surface mulching, and no edge planting, respectively. This reduction effect was especially great during the first three years after planting. Nuisance herbaceous plants rarely invaded higher density planting with woodchip mulching over the five years. Higher density planting or woodchip mulching also showed much greater erosion control through rainfall interception and buffering than lower density planting with no mulching did. Based on these results, desirable planting and management strategies are suggested to improve the functions of riparian greenspaces.