• 대한불안의학회지
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• 제4권2호
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• pp.99-103
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• 2008

Objectives : The authors sought to examine the differences in the number of P300 detected by subjects in experimental and control groups when exposed to relevant stimuli. In addition, the authors tried to determinethe subjects' reaction time when asked to respond to relevant stimuli. Methods : The subjects were 20 informed female volunteers aged 22-38 years (median age : 24). Relevant stimuli (concealed information) were created by unknowingly exposing the two groups to obscene pictures and semantic questions. The number of P300 detected and the length of reaction time were compared between the two groups. Results : Contrary to theauthors' expectations, there were no significant differences in the number of P300 detected or in the length of reaction time between the two groups. Conclusions : These results indicate that, unlike a polygraph test, concealed information tests adopting P300 and reaction time as major physiological responses ofsubjects exposed to meaningful personal information might not serve as a valid practical tool in the field of criminal psychology. However, further studies involving a greater number of subjects are needed before a final conclusion regarding the validity of this new type of concealed information test can be drawn.

• 한국콘텐츠학회논문지
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• 제8권11호
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• pp.65-73
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• 2008

본 연구에서는 고령인구의 증가에 따라 시니어를 대상으로 하는 휴대폰 시장이 확대될 것이라 예측하여, 향후 노후를 맞이할 50${\sim}$65세의 시니어를 기준으로 휴대폰 소비행태와 사용현황을 살펴보고자 하였다. 따라서 실버 소비자와 마케팅에 관한 이론적 연구를 바탕으로 설문조사를 실시하였으며, 시니어의 라이프스 타일 분석을 통하여 시니어(Senior)와 액티브시니어(Active senior)로 구분, 두 그룹간의 특징 및 차이점을 분석하였다. 또한 선행연구결과에 근거하여 기존 고령자들이 불만족도가 높았던 항목에 대한 실제적인 접근방법을 살펴보고 향후 인터페이스의 직접입력 방식으로의 변화 가능성 여부를 타진해보았다. 그 결과 본 논문에서는 시니어의 사용경험증가에 따른 행동양식의 변화를 알 수 있었으며, 라이프스타일에 따른 소비행동 요인의 차이와 더불어 새로운 인터페이스에 대한 시장가치의 가능성을 발견할 수 있었다.

• 상하수도학회지
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• 제25권2호
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• pp.201-212
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• 2011

Nanotechnology is the applied science which develops new materials and systems sized within 1 to 100 nanometer, and improves their physical, chemical, and biological characteristics by manipulating on an atomic and molecular scale. This nanotechnology has been applied to wide spectrum of industries resulting in production of various nanoparticles. It is expected that more nanoparticles will be generated and enter to natural water bodies, imposing great threat to potable water resources. However their toxicity and treatment options have not been throughly investigated, despite the significant growth of nanotechnology-based industries. The objective of this study is to provide fundamental information for the management of nanoparticles in water supply systems through extensive literature survey. More specifically, two types of nanoparticles are selected to be a potential problem for drinking water treatment. They are carbon nanoparticles such as carbon nanotube and fullerene, and metal nanoparticles including silver, gold, silica and titanium oxide. In this study, basic characteristics and toxicity of these nanoparticles were first investigated systematically. Their monitoring techniques and treatment efficiencies in conventional water treatment plants were also studied to examine our capability to mitigate the risk associated with nanoparticles. This study suggests that the technologies monitoring nanopartilces need to be greatly improved in water supply systems, and more advanced water treatment processes should be adopted for better control of these nanoparticles.

• 한국수정란이식학회지
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• 제25권4호
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• pp.281-286
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• 2010

This study was to evaluate the protein profile of seminal plasma using 2-DE in Hanwoo. Seminal plasma was harvested from five mature Hanwoo, and seminal plasma protein was extracted by M-PER Mammalian Protein Extraction Reagent. Proteins were refined by clean-up kit and quantified by Bradford method until total protein was $300\;{\mu}l$. Immobilized pH gradient (IPG) strip was used 18 cm and 3~11 NL. SDS-PAGE was used 12% acrylamide gel. Each gels were visualized by comassie brilliant blue and silver staining. These spots were analyzed by MALDI-TOF MS and searched on NCBInr. The result, 20 proteins of 36 protein spots were searched through peptide sequencing on the NCBInr. 8 proteins profiled by 2-DE were proved through previous bovine studies and the name of each protein was albumin, nucleobindin, clusterin, TIMP-2, spermadhesin Z13, spermadhesin-1 and BSP proteins (BSP 30 kDa and BSP A1/A2). 12 new proteins were ATP synthase, protein MAK16 homolog, Transmembrane protein 214, E3 ubiquitin-protein ligase BRE1A, dual serine/threonine and tyrosine protein kinase, tissue factor pathway inhibitor 2, alpha-actinin-4, RUN domain-containing protein 3B, catenin alpha-1, protein-glutamine gamma-glutamyltransferase 2, plakophilin-1 and inter-alpha-trypsin inhibitor heavy chain H1 has not been previously described in the bovine seminal plasma study. These proteins may be contribute to define the type of proteins affecting fertility of male and improve the fertilizing ability of semen in Hanwoo.

• 패션비즈니스
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• 제6권4호
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• pp.83-98
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• 2002

The purpose of this study is to find out the orientations and characteristic in clothes buying of each age group of elderly women, based on the actual self-image and the ideal self-image of clothing. Grasping the diversity of their clothes' buying orientations will be helpful in making a better merchandise production planning for apparel, and in launching new brands into the market. The study will also provide useful data in developing sales strategies which enable to supply goods that meet consumers' needs and tastes in the quality market, and consequently will help to classify the market. Samples were 488 women of 55 and over, dwelling in Pusan Metropolitan City. The data was analysed by using MANOVA, ANOVA, and the Cronbach's $\alpha$ reliability was also applied. The conclusions based on the theoretical background and the result of questionnaire surveys were as follows: 1. The order of priority of buying orientations based on clothes's actual self-image was 'practicality', 'cautiousness' and 'economical effectiveness' without regard to age. The items that showed the significant differences in 50's were 'cautiousness', 'experimentation', 'fashion-consciousness' and ostentatiouness, and in 70's were 'economical effectiveness', 'experimentation', 'impulsiveness' and 'environmental friendliness', and none in 60's. 2. The order of priority based on clothes' ideal self-image was the same as that of actual one, and there was no significant difference between age groups.

• 디지털융복합연구
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• 제19권9호
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• pp.145-156
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• 2021

기존 경영학 문헌에서 기업집단은 개발도상국, 재무시장이 발달하지 못한 국가에서 일시적으로 존재하는 기업의 형태라고 여겨졌다. 그러나 기업집단의 한국적 형태인 재벌은, 대한민국이 선진국으로 거듭나고 국내 재무시장이 발달하였음에도 불구하고, 여전히 주요한 기업의 형태로 존속하고 있다. 본 이론 연구에서는 이러한 기존 이론과 현상의 불일치를 규명하기 위해, 재벌가 출신 창업가에 대한 이론적 연구 모형을 제시한다. 첫째, 본 연구에서는 사회적, 기업지배 구조적, 재벌가 구성원 본인들의 심리적 요인들은 재벌가 구성원들이 창업가로 거듭나는 긍정적 동기로 작용함을 제안한다. 둘째, 이들이 운영하는 기업은 더 나은 기회 포착, 재무적 지원, 원활한 채용, 활발한 마케팅 및 기업간 협력 관계 구축을 통해 여타의 창업가들보다 더 빠른 성장을 달성할 것임을 주장한다. 본 이론 논문은 대한민국 재벌가 출신의 창업을 통한 재벌 집단의 새로운 확장 가능성을 제시함으로써 기업집단 및 창업 연구의 발전에 기여하고자 한다.

• 인터넷정보학회논문지
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• 제22권5호
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• pp.35-45
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• 2021

베이비 부머 세대가 고령인구로 진입하면서 기존의 시니어와는 달리 활동적인 모습을 보이는 시니어들이 액티브 시니어라는 신조어로 불리며 새로운 소비자 층으로 떠오르고 있다. 많은 국가들과 기업들도 이들을 주목하고 관련 정책이나 서비스를 제공하고자 하지만 액티브 시니어 트렌드에 대한 연구는 매우 부족한 실정이다. 본 논문에서는 이러한 액티브 시니어에 대한 특징과 이들이 생산하고 소비하는 온라인 미디어 콘텐츠 트렌드를 파악하여, 액티브 시니어를 적극 포용하고 지원할 수 있는 온라인 미디어에 대한 정책 및 서비스 방향성을 제시하고자한다. 이를 위해 소셜 미디어에서 액티브 시니어를 수집 키워드로 2018년 1월 1일부터 2021년 6월 31일까지 8,740건의 데이터를 수집하여 키워드 빈도 분석, TF-IDF 분석, LDA 토픽 모델링 분석을 하였다. 키워드 빈도 분석 및 TF-IDF 분석을 통해서 액티브시니어에 대한 관심도가 급증하고 있다는 것을 파악하였으며 LDA 토픽 모델링 분석을통해서 온라인 콘텐츠의 주제 영역을 10가지로 분류하고 라이프 스타일, 혜택, 쇼핑, 정부 사업, 정부 교육, 건강, 사회/경제, 케어 산업, 실버 주택, 여가로 명명하였다.

• 보존과학회지
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• 제35권1호
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• pp.19-31
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• 2019

To study the cleaning effects and post-treatment stability assessment of various methods of cleaning textiles with metal thread, six naturally-soiled historical textiles with metal thread were investigated at the Metropolitan Museum of Art, New York. Prior to the cleaning of fabricated gold, silver, and copper thread that had been glued onto a paper substrate, the artificial deterioration was carried out in a controlled environment with light(UV and daylight), and temperature and humidity factors which would weaken and damage the samples. A synthetic soil mixture was applied to the samples to imitate soil found on the historic and archaeological textiles with metal thread; the cleaning effect and post-treatment assessment were investigated by use of three textile cleaning methods: mechanical cleaning, wet cleaning, and solvent cleaning. While investigating the naturally-soiled textiles with metal thread, it was determined that the soil colors and sizes of contaminating particles of each textile were different due to the diversity of original environmental factors and conditions. After cleaning with kneaded rubber, Stoddard solvent, n-decane or n-hexane, a bright, clean effect was apparent. Kneaded rubber was successful in picking up both large and small particles, but its stickiness caused some of the metal leaf to peel off. Stoddard solvent produced a good cleaning effect, but after use of n-hexane and n-decane in the cleaning process, a white layer of residue remained on the textile's surface. Wet cleaning was not effective and the rapid humidity changes between wet and dry conditions caused the edges of the paper substrate to lose their original shape.

• 한국건축친환경설비학회 논문집
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• 제12권6호
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• pp.655-668
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• 2018

This paper analyzes the applicability and technology level of the green building element technology by analyzing the scorecard of the LEED Canada certified buildings. The results of this analysis will be able to evaluate the current status and level of application of green building element technology, and it will be used as a basic data to prepare for the revision of the certification standards and the establishment of strategies for the future green building activation. In this study, 1,010 LEED Canada certified buildings from 2011 to 2016 were analyzed. The results were analyzed by focusing on the status of greening by certification category and the characteristics of adoption by sub-category. The results of the study are summarized as follows. (1) EA category showed the biggest difference between the certification scores and the adoption rates than other categories, and it was confirmed that it is not easy category from the viewpoint of practical adoption. On the other hand, the ID (Innovation & Design Process) and WE were analyzed to be relatively easy to apply, with a score of over 72%. (2) In the case of Platinum class, the upper adoption rate is shown in all categories except MR. The Gold class shows the adoption rate of WE and ID in the top, and the middle rate in most categories. Silver grades showed lower rates in the three categories except WE, ID and EQ. Certified grades showed the adoption rates of the bottom except the two categories.

• ALGAE
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• 제38권1호
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• pp.1-22
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• 2023

An enormous body of research is focused on finding ways to commercialize carotenoids produced by the unicellular green alga, Haematococcus, often without the benefit of a sound phylogenetic assessment. Evidence of cryptic diversity in the genus means that comparing results of pigment studies may be confounded by the absence of a phylogenetic framework. Moreover, previous work has identified unnamed strains that are likely candidates for species status. We reconstructed the phylogeny of an expanded sampling of Haematococcus isolates utilizing data from nuclear ribosomal markers (18S rRNA gene, 26S rRNA gene, internal transcribed spacer [ITS]-1, 5.8S rRNA gene, and ITS-2) and the rbcL gene. In addition, we gathered morphological, ultrastructural and pigment data from key isolates of Haematococcus. Our expanded data and taxon sampling support the concept of a new species, H. privus, found exclusively in North America. Despite overlap in numerous morphological traits, results indicate that ratios of protoplast length to width and akinete diameter may be useful for discriminating Haematococcus lineages. High growth rate and robust astaxanthin yield indicate that H. rubicundus (SAG 34-1c) is worthy of additional scrutiny as a pigment source. With the description of H. privus, the evidence supports the existence of at least five, species-level lineages in the genus. Our phylogenetic assessment provides the tools to frame future pigment investigations of Haematococcus in an updated evolutionary context. In addition, our investigation highlighted open questions regarding polyploidy and sexuality in Haematococcus which demonstrate that much remains to be discovered about this green flagellate.