• 대한공간정보학회지
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• 제17권1호
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• pp.13-19
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• 2009

광안리 해수욕장은 해운대 해수욕장과 더불어 부산을 대표하는 해수욕장 중 하나로 2003년 광안대로 완공 이후 관광객이 꾸준히 늘어 2006년에는 1,000만명 이상의 관광객이 찾는 관광명소이다. 관할구청에서는 광안리 해수욕장 관리를 위해 해마다 양빈사업과 자갈제거 작업을 수행하고 있지만 체계적인 모니터링과 침식에 관한 연구는 미비한 실정이다. 본 연구에서는 지난 60년간 항공사진, 조석자료, GPS측량자료를 이용하여 광안리 해수욕장의 해안선의 변화를 분석하고, 광안리 해상에 건설된 광안대교가 해안선변화에 얼마나 영향을 미치는지 알아보았다. 그 결과 지난 60년간 광안리 해변의 면적은 40% 증가하였으며, 광안대교가 해안선 변화에 미치는 영향은 미비한 것으로 나타났다.

• 대한조선학회 특별논문집
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• 대한조선학회 2008년도 특별논문집
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• pp.1-9
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• 2008

This report contains the results of structural analysis for the verification of the optimum offset range on the top of T-Bar with stiffener and BKT using at DSME Offset range as $6.0{\sim}10.0mm$ based on the 3-D FE analysis and experimental results of angie type stiffener as described in Annex 1 has been used as yard standard over ten (10) years under all Classification approval. Recently, Owner and Class have requested the confirmation for the misalignment based on the Yard's Standard so that a couple of locations for LNGC and LPGC has been investigated the structural strength by FE method using the offset ranges from 0.0 to 18.0 mm.

• 대한화장품학회지
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• 제22권2호
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• pp.70-75
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• 1996

DMHF (2.5-dimethyl-4-hydroxy-3[2H]-furanone), an antioxidative compound from the reaction of L-cysteine/D-glucose scavenged efficiently 1,1-diphenyl-2-picryl hydrazyl free radicals. It exhibited an inhibitory effect on the autoxidation of linolenic acid, and the protective effect against UV cytotoxicity in cultured human fibroblast. In addition, DMHF appeared to prevent the cellular melanogenesis in the cultured murine melanoma cells more effectively than kojic acid, a well known inhibitor of melanogenesis, while the former was not so effective as the latter for the inhibition of the tyrosinase. Considering that cellular melanogenesis is a metabolic process triggered by oxidative stress, it ovas tentatively deduced that the antioxidative property of DMHF might afford the effect against cellular pigmentation by alleviating the causative stress. In toxicological tests such as irritation and sensitization, this compound turned out to be safe. The results of this study suggest that DMHF may be a novel inhibitor of melanogenesis, and that night be useful for application in cosmetics.

• 한국정보전자통신기술학회논문지
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• 제8권1호
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• pp.23-27
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• 2015

요즈음 교통사고를 줄이기 위하여 IT 기술을 이용한 교통사고 연구가 많이 진행되고 있다. 그러나, 뺑소니 교통사고 발생하면 가해차량을 현장에서 찾기가 매우 어렵다. 교통사고 조사 과학화를 위해서, RFID 기술 및 유비쿼터스 이론을 이용하여 효율적인 교통사고 예방 시스템을 구축하는 알고리즘을 제안하였다. 특별히, 본 논문에서는 시시각각 변화하는 따른 도로상황 및 날씨 조건에 변화에 따른 최적 교통안전 속도를 산출하는 모의실험을 하였다.

• International Journal of Internet, Broadcasting and Communication
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• 제10권3호
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• pp.1-10
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• 2018

Wearable Technology is going to be the biggest buzzword and the next generation of digital revolution in the near future. Wearables have changed the focus of the healthcare industry to prevention programs in order to encourage individuals to be more active and to take the responsibility of their own health. Although, the intention of consumers to use wellness wearables has been growing rapidly, the number of individuals who refuses continued use of such devices increases day-by-day. Diffusion and innovation of new technology could be more efficiently gained by consumer's adoption. So, it is extremely important for providers and designers to understand the impact of positive and negative factors on consumers' intention to use wellness wearables. Moreover, a unified framework is required for better understanding of individuals' behavioral intention for using wellness wearables. Thus, the goal of this study is to identify the potential factors that influence consumers' willingness to use wellness wearables as well as proposing a unified framework based on Unified Theory of Acceptance and Use of Technology 2 (UTAUT2) and Value-based Adoption Model (VAM) with two extra factors, perceived trust and perceived health increase. The findings of this article improves the theoretical understanding of the engaged factors in the proposed research model of the study.

• 한국실내디자인학회논문집
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• 제16권6호
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• pp.197-204
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• 2007

In the spatial configuration of room-to-room art museums, openings and walls are important physical factors, and openings are a medium for connecting spaces. Also, by spatially composing walls and openings, spaces can be connected visually and physically, and movements and directions may vary depending on the location or size of walls and openings. In this study, 5 museums are investigated: Sainsbury Wing in London, Gemaldegalerie In Berlin, Alte Pinakotkek in Munich, Neue Pinakothek in Munich, and Staatsgalerie Stuttgart in Stuttgart. Using DepthMap program, the characteristics of visual-spatial composition of each museum are derived by comparing the Connectivity, Visual integration, and Isovist maximum radial. From an analysis of spatial distribution, a relationship with visibility is investigated. The results of this study showed that the combination of visual axial lines affect the spatial configuration of the room-to-room museums. Depending on the location of opening, the museums can be classified as follows: 1) Museums with the 1st visual axial line and the 2nd and 3rd auxiliary visual axial lines ; 2) museums with several equal visual axial lines; and 3) museums with only center axial line.

• 대한한방내과학회지
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• 제12권1호
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• pp.166-182
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• 1991

This study has been carried out to investigate the cause and symptom of Hae su (咳嗽) cause by a cold referring to 25 literature. 1. Cause : wind (風), cold (寒), heat (署), moisture (濕), dryness (燥), fire (火). It appears to cause double and above. 2. Symptoms : PunghanHaeSu (風寒咳嗽) ; HaeSu (咳嗽), Balyul (發熱), DamHueSaegBaeg (痰稀色白), Hu Yang Sung Tag (喉痒聲濁), BiSaegYuChe (鼻塞流涕), OhPungHan (要風寒), DooShinTong (頭身痛), TaeBaqBaeg (笞薄白), Maeg Bu Gin (脈浮緊). PungYeulHaeSu (風熱咳嗽) ; HaeSu (咳嗽), DamJo (痰稠), SaegHwang (色黃), KaegChulBulSang (喀出不痰), KuKallnTong (口瀉咽痛), BalYeul (發熱), OhPungYuHan (要風有肝), HogYuDuTong (或有頭痛), TaeBagHwang (笞薄黃), Maegbusag (脈浮數). JoYeulHaeSu (燥熱咳嗽) ; KunHaeMuDarn (乾咳無痰), HogDamJungDaeHyulSa (或痰中帶血絲), HaelnHungTong (咳引胸痛), BiJolnKun (鼻燥咽乾), pliogyuOhPungBalYeul (或要風發熱), TaeBagHqangIKun (笞薄黃而乾), MaegSeSag (脈細數). 3. Treatment ; PungHanHaeSu ; SoPungSanHan (疏風散寒), Sun PaeJiHae (宣肺止咳), PungYeulHaeSu ; SoPungchungYeul (疏風淸熱), SunPaeJiHae (宣肺止咳), JoYeulHaeSu; CheongPoeYunJo (淸肺潤燥), SaengJinJiHae (生津止咳). Basing on the literature research, I found that Hae Su (咳嗽) caused by a cold belong to category of YugEum(六淫).

• Journal of Species Research
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• 제8권4호
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• pp.351-364
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• 2019

Here we describe indigenous prokaryotic species in Korea, a total of 42 bacterial strains affiliated to the class Alphaproteobacteria isolated from various environmental samples: fermented vinegar, sea water, beach sand, fresh water, salt flats, moss, algae, activated sludge, and soil. From the high 16S rRNA gene sequence similarity (>98.7%) and formation of a robust phylogenetic clade with the closest species, it was determined that each strain belonged to predefined bacterial species. There is no official report that these 42 species included in Alphaproteobacteria in Korea: 15 species of 6 genera in the order Rhodospirillales, 12 species of 10 genera in the order Rhizobiales, 10 species of 8 genera in the order Rhodobacterales, 4 species of 4 genera in the order Sphingomonadales and 1 species of 1 genus in the order Caulobacterales. Gram reaction, colony and cell morphology, basic biochemical characteristics, isolation source, and strain IDs are also described in the species description section.

• Earthquakes and Structures
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• 제10권1호
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• pp.163-178
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• 2016

Composite Lightweight (CL) insulated walls have gained wide adoption recently because the exterior claddings of steel building frames have their cost effectiveness, good thermal and structural efficiency. To investigate the seismic behavior, lateral stiffness, ductility and energy dissipation of steel frames with the CL infill walls, five one-story one-bay steel frames were fabricated and tested under cyclic loads. Test results showed that the bolted connections allow relative movement between CL infill walls and steel frames, enabling the system to exhibit satisfactory performance under lateral loads. Additionally, it is found that the addition of diagonal steel straps to the CL infill wall significantly increases the initial lateral stiffness, load-carrying capacity, ductility and energy dissipation capacity of the system. Furthermore, the test results indicate that the lateral stiffness values of the frames with the CL infill wall are similar to those of the bare steel frames in large lateral displacement.

• Journal of Power Electronics
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• 제19권1호
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• pp.44-57
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• 2019

Recently, the use of LLCL filters for grid inverters has been suggested to give better harmonic attenuation than the commonly used L and LCL filters, particularly around the switching frequency. Nevertheless, this filter is mainly designed for constant switching frequency pulse width modulation (CSF PWM) methods. In variable switching frequency PWM (VSF PWM), the harmonic components are distributed across a wide frequency band which complicates the use of a high order filter, including LCL and LLCL filters. Recently, a confined band variable switching frequency (CB-VSF) PWM method has been proposed and demonstrated to be superior to the conventional constant switching frequency (CSF) PWM in terms of switching losses. However, the applicability of LLCL filters for this type of CB-VSF PWM has not been discussed. In this paper, the authors study the suitability of an LLCL filter for CB-VSF PWM and propose design guidelines for the filter parameters. Using simulation and experimental results, it is demonstrated that the effectiveness of an LLCL filter with CB-VSF PWM depends on the parameters of the filters as well as the designed variable frequency band of the PWM. Simulation results confirm the performance of the suggested LLCL design, which is further validated using a lab scale prototype.