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        검색결과 1,815

        1.
        2023.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        해양치유 프로그램에 대한 관심은 코로나19 팬데믹 이후 정부와 업계 실무자 모두에서 급속도로 증가하고 있다. 그러나 아직까 지 소비자 관점에서 해양치유 프로그램이나 해양치유 체험에 대한 유용성, 만족도, 편익 등을 이해하고자 시도한 연구는 부족한 실정이 다. 이에 이 논문에서는 후기수용모델을 적용하여 해양치유 프로그램 참여자의 지각된 유용성과 기대일치, 만족, 지속참여의도 간 관계를 구조적으로 분석하고자 하였다. 자료수집은 부산시 해양치유 프로그램 운영 기간인 2022년 9~10월까지 매 주말 사전 훈련된 면접원에 의 한 면접조사 방식으로 실시하였고, 총 203부의 유효 표본을 분석에 활용하였다. 분석 결과 해양치유 프로그램에 대한 기대일치는 프로그 램 참여자의 만족과 프로그램의 지각된 유용성에 긍정적인 영향을 미치는 것으로 나타났고, 해양치유 프로그램 참여자 만족은 프로그램 지속참여의도에 긍정적인 영향을 미치는 것으로 나타났다. 해양치유 프로그램에 대한 지각된 유용성 역시 프로그램 참여자 만족 및 지속 참여의도에 긍정적인 영향을 미쳤다.
        4,000원
        2.
        2023.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The study aimed to investigate the factors influencing genderless fashion preferences. The questionnaires were collected from men and women participants aged 20 to 49 living in Seoul City and Gyeonggi Province. Data analysis involved factor analysis, t-test, ANOVA, and regression analysis. The findings revealed that genderless fashion preference comprised four factors, namely individuality pursuit, deviation from norms, fashion pursuit, and social recognition pursuit. Self-esteem encompassed two factors positive self-esteem, and negative self-esteem. while sociocultural attitude toward appearance consisted internalization, and awareness. Second, positive self-esteem significantly influenced individuality pursuit and deviation from norms in genderless preference factors. Third, sociocultural attitude toward appearance had a significant effect on genderless fashion preference, with awareness particularly exerting a significant effect on individuality pursuit, fashion pursuit, and social recognition pursuit. Fourth, genderless fashion preferences exhibited differences based on gender role identity in factors such as individual pursuit, norm avoidance, and trend pursuit. Lastly, demographic characteristics such as age, education, occupation, and monthly income revealed significant differences in genderless fashion preferences. From the results of the study, it was found that consumers perceived individuality pursuit, fashion pursuit, and social recognition pursuit as important influencing factors of genderless fashion preferences. In addition, it is necessary to create an independent brand identity by developing various items to express consumers’ individuality, differentiated brand concepts from other brands, and store displays.
        4,800원
        3.
        2023.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        algorithms for deriving and analyzing retroreflectivity influence factors through regression analysis. METHODS : An experimental road lane was created to examine the trends of retroreflectivity and LiDAR intensity values, and a controlled indoor experiment was conducted to identify influencing factors. The optimal algorithm was developed by regression analysis of the experimental data. RESULTS : The significance probability (P-value) through SPSS linear regression analysis was 0.000 for measured height, 0.001 for perpendicular angle, 0.157 for vertical angle, and 0.000 for LiDAR intensity, indicating that measured height, vertical angle, and LiDAR intensity are significant factors because the significance probability is less than 0.05, and vertical angle is not significant. The NNR regression model performed the best, so the measurement data with height (1.2m, 2m, 2.2m) and vertical angle (11.3°, 12.3°, 13.5°) were analyzed to derive the optimal LiDAR Intensity measurement height and vertical angle. CONCLUSIONS : For each LiDAR measurement height and vertical angle, the highest correlation between LiDAR Intensity and retroreflectivity was found at a measurement height of 1.2 meters and a vertical angle of 12.3°, where the model learning accuracy (R2) was the highest.
        4,000원
        4.
        2023.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study aimed to investigate the effects of amino acid complex additives, such as protected vitamin C (VC) or detoxified sulfur (DS), on the growth and metabolism of Hanwoo cattle under high-temperature conditions. Accordingly, farms in Temperature-Humidity Index (THI) regions ranging from 78 to 89 for over 100 days were selected. The experimental groups were control, T1 (lysine + methionine + VC, 50 g/head/day), and T2 (lysine + methionine + DS, 50 g/head/day) with 70, 77, and 71 animals each. The range of the THI for 115 days was 78-89, and this occurred in most of the experiment days. The results showed that there was no significant difference in rectal temperature among the groups. The body weight increased to 786.4 and 809.0kg in the T1 and T2 groups, respectively, compared to the control group (p<0.05). Linoleic acid showed a high result of 2.01% in the T1 group compared to the control group (p<0.05). Unsaturated fatty acids were higher at 55.70 and 56.54% in the T1 and T2 groups, respectively, compared to the control group (p<0.05), and the omega 6/3 ratio was reduced to 20.10% (p<0.05). These findings indicate that T1 has a positive impact on growth, meat quality, and fatty acid composition compared to the control group. In conclusion, amino acid complex with VC improved the body weight of Hanwoo steers and the unsaturated fatty acids and essential amino acids of their meat; however, further research is needed to clarify this impact on carcass performance.
        4,800원
        5.
        2023.12 구독 인증기관 무료, 개인회원 유료
        Purpose: The purpose of this study is to understand the nature of the health promotion behavior of the high-risk group of cardiovascular disease among large-scale industrial manufacturing workers. Method: The subjects of this study were 11 workers at high-risk of cardiovascular disease with a Framingham Risk Score (FRS) score of 10% or more among workers at large-scale workplace in Gyeongsangbukdo area, and the data collection period is from July 1 to September 11, 2022. The interview data were inductively analyzed using the qualitative content analysis method used by Elo and Kyngas (2008). Result: Participants' awareness of their own health status and knowledge of cardiovascular disease were low, and there were more obstacles than benefits to health behavior. The process and method of realizing and practicing health care were also different. As a result of qualitative content analysis, 42 semantic units, 12 subcategories, and 3 upper categories were derived. The health promotion behavior of workers at high-risk for cardiovascular disease was categorized into ‘Awareness of health conditions’, ‘Obstacles to health care behavior’, ‘Health care practice process’. Conclusion: Since most of the workers spend a lot of time at work, it is necessary to understand the health care of high-risk workers with cardiovascular disease, so a qualitative study using participatory observation methods to observe workers’ work sites is recommended.
        4,500원
        6.
        2023.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        In this study, the displacement dependence, strength, and energy dissipation capacity of the steel rod damper were evaluated. The test variables are the number of steel rod dampers and the lateral deformation prevention details. From test results, it was evaluated that the displacement dependence conditions in the structural design code were satisfied. The maximum strength and energy dissipation capacity increased linearly as the number of steel rod increased. In addition, the maximum strength and energy dissipation capacity were evaluated by more than 20 times increased by using of the lateral deformation prevention details.
        4,000원
        7.
        2023.11 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study aimed to examine the possibility of upcycling extracts of Angelica keiskei and Oenanthe javanica juice by-products through comparing enzyme extraction (EE) and complex extraction (CE) methods to increase the extraction yield and flavor of materials. A higher extraction yield was obtained for free amino acid content with EE and CE for A. keiskei and O. javanica juice by-products, respectively, and a higher extraction efficiency was achieved with juice by-products than with extracts prepared from raw materials before juice production. The content of major amino acids varied depending on the extraction method used. When used according to the characteristics of the extract, their use as a functional material was confirmed along with improvement in the flavor of the food. Consistently high extraction yields for organic acid and sugar levels were obtained with CE in A. keiskei and O. javanica juice by-products. The DPPH radical scavenging ability and TPC were consistently high with CE in A. keiskei and O. javanica juice by-products; the increase in extracted content was likely because of the reaction between the ethanol used for CE and the phenolic compounds. However, because the antioxidant capacity of the juice by-product extracts was somewhat lower than that of the extracts from raw materials before juice production, the amount used should be reviewed. The TFC was found to be higher in extracts obtained with EE than with CE for A. keiskei juice by-products; however, no significant difference was observed between EE and CE in the O. javanica juice by-products. Through this study, the taste compounds and antioxidant properties of extracts obtained from juice by-products produced after the production of A. keiskei and O. javanica green juice were analyzed, and the availability of high value-added materials was confirmed. Based on these research results, expanding specific R&D for practical use should be explored.
        4,200원
        8.
        2023.11 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study investigated the changes in the cyanogenic glycoside (CN-Glc) content of maesil chung (MC) prepared according to its preparation conditions (i.e., maesil part, sugar type, maesil-sugar mixing ratio, liquid separation) and sugaring-ripening period and the quality characteristics of their products finalized through filtration and heat treatment (85oC, 30 min) with the 6-month ripened MC. The CN-Glc content dramatically decreased when the maesil flesh, isomaltooligosaccharide, maesil:sugar ratio of 5:5, and liquid separation after the 4-month sugaring were applied to the MC production. The CN-Glc content decreased with the ripening period. There was no effect of filtration and heat treatment on the CN-Glc reduction of the MC product. The sugar type predominantly affected the soluble solid and total carbohydrate content of the MC products, and their contents increased in the order of high-fructose corn syrup > sucrose > isomaltooligosaccharide. The MC product at a maesil:sugar ratio of 6:4 exhibited the higher organic acid content. There was no direct association between the total polyphenolic compound content and the preparation conditions of the MC product. Overall, the use of maesil flesh as a maesil ingredient and more than 6-month ripening after liquid separation may be a pivotal factor in producing the cyanogenic glycoside-reduced maesil chung.
        4,200원
        9.
        2023.11 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The objective of this study was to investigate changes in the cyanogenic glycoside (CN-Glc) content of apricot and plum chungs over the sugaring-ripening period and to evaluate their quality characteristics. The whole and flesh parts of the apricot and plum were mixed with sugar to a mixing ratio of 1:1 (w/w) to prepare their chungs, after which the fruit-sugar mixtures were stored for 13 months. The CN-Glc content dramatically increased within 3-4 months, reached the maximum, and gradually decreased over storage by 13 months. The apricot and plum chungs with seeds exhibited much higher CN-Glc contents than those without seeds. All chungs stored for 10 months were filtrated and treated for 30 min at 85oC to measure their quality characteristics. Similar soluble solid contents (53.4- 53.6oBx) were found in all chungs. The apricot and plum chungs without seeds exhibited the higher concentrations of total carbohydrate, organic acid, and total polyphenolic compounds than those with seeds. In addition, the color of the apricot and plum chungs without seeds was darker and deeper yellow than those with seeds. Overall, the apricot and plum flesh may be better for producing the stone fruit chungs with minimal CN-Glc content and better nutrition.
        4,000원
        13.
        2023.10 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 연구에서는 기존 식품첨가물 분석법에서 합으로써 분 석되는 락색소를 laccaic acid A, B, C, E 4가지 성분으로 분류하고 개별적으로 정량 할 수 있는 분석법을 확립하였 다. Natural red 25를 사용하여 구조적으로 비슷한 laccaic acid A와 B를 1차적으로 분취한 후 2차로 A와 B를 분리 했다. 같은 방식으로 C와 D를 1차, 2차에 걸쳐 각각의 개 별 표준품으로 사용하였다. 락색소 불검출 시료 3가지 시료 (햄, 토마토 주스, 고추장)를 확보하여 0.05-107.2 μg/mL 범 위에서 결정계수(r2) 0.995 이상의 직선성을 확인하였다. 3 가지 시료에서 정밀도와 정확성을 측정한 결과, 일내 정 밀도는 0.2-12.3%, 정확도는 90.6-112.7% 범위 내에서 확인 되었으며 일간 정밀도는 0.3-13.3%, 정확도는 90.3-113.0% 범위내로 확인 되었다. 락색소를 사용하는 식품과 사용 금 지 식품에 대해 회수율을 측정한 결과, 사용 가능 식품에서 는 91.6-114.9% 범위의 회수율을 보였으며, 사용 불가 식품 의 경우 92.5-113.5% 범위의 회수율을 보였다. 락색소의 검 출 한계는 3가지 시료에서 검출한계 0.01-0.15 μg/mL, 정량 한계 0.02-0.47 μg/mL로 확인되었다. 락색소의 4가지 성분중 laccaic acid A와 C에 대한 측정 불확도를 산출한 결과, laccaic acid A의 측정 불확도는 13.65±0.39 mg/kg(신뢰수준 95%, K=2), laccaic acid C의 측정 불확도는 4.19±0.39 mg/kg(신뢰 수준 95%, K=2)로 비교적 낮은 측정불확도 값을 산출하 였다. 따라서 본 연구에서는 식품 중 락색소의 개별 분석 과 정성 및 정량분석을 위해 유효성이 검증된 분석법을 확립으로 식품 중 잔류물질 기준규격 설정 및 관리에 참 고 자료가 될 수 있고, 향후 매트릭스 효과에 따른 laccaic acid 개별 분석과 개별 활성 및 독성시험 연구의 근거 지 표가 될 수 있다고 판단된다.
        4,300원
        14.
        2023.10 KCI 등재 SCOPUS 구독 인증기관 무료, 개인회원 유료
        췌장 가성동맥류는 췌장염이나 췌장 수술과 연관되어 종종 생명을 위협하는 합병증으로 알려져 있다. 췌장 가성동맥류가 파열되면 치명적인 출혈을 유발할 수 있으며 높은 사망률과 관련이 있기 때문에 임상적 의심과 조기 진단이 환자의 임상 경과를 호전되게 할 수 있는 중요한 역할을 한다. 가성동맥류의 치료법 중 하나로 알려진 색전술은 효과적일 수 있으나, 췌장염과 관련된 가성동맥류 파열 환자의 색전술 치료 결과에 대한 국내 연구는 적다. 이에 췌장염으로 인한 가성동맥류 파열을 진단받고 색전술로 성공적으로 치료받은 환자들에 대한 증례를 보고한다.
        4,000원
        15.
        2023.10 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The government focuses on promoting start-ups, fostering ventures, and creating an ecosystem of start-ups through the formation of a strong growth environment for small businesses. This study provides academic and practical implications about ways of improving our business incubator’s support service across stages of growth through IPA. To this end, an Importance-Performance Analysis (IPA) was conducted to analyze relationship and differences in importance and satisfaction of business incubator’s support service support at business incubation center. These results present to provide the following academic and practical implications. The academic implications are the need for differences in support services for each phase of start-up growth. As factors that could increase the likelihood of successful start-up were identified in each phase of the start-up growth, important information needed for policy and strategy was provided. As a practical suggestion, the managers and expert groups are presented with sections to be opened for each start-up growth stage, minimum effort input, and areas to be maintained continuously. A systematic support plan is established and a foundation is provided for improvement measures in efficient start-up business incubator’s support service.
        4,000원
        17.
        2023.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        한국의 목조건축문화유산은 상당수가 산림에 인접하여 흰개미에 의한 피해에 취약하다. 국내 흰개미 방제법은 살충제 접촉을 통한 화학적 방제법이 주로 이용되며, 방제 기간을 단축하기 위해서는 흰개미를 빠르게 약제까지 유인시킬 방법이 필요하다. 본 연구에서는 한국 서식 흰개미 에 대한 유인물질로 이산화탄소를 선정하여 유인여부 및 적절한 유인농도를 탐색하였으며, 지중 환경에서의 유인효력 기초평가를 진행하였다. 평가를 통해 흰개미에 대한 이산화탄소의 유인 효과를 확인하였으며, 이산화탄소 농도 10% 이하의 유효한 범위를 선정하였다. 또한 지중에서의 유인 효과를 확인함으로써 지중 환경에서의 적용 가능성을 파악하였다. 향후 현장에서 이산화탄소의 적용방안을 연구함으로써, 목조건축문화유 산의 흰개미 방제 시 개선된 방제 효과를 가질 수 있을 것으로 사료된다.
        4,300원
        18.
        2023.08 KCI 등재 구독 인증기관 무료, 개인회원 유료
        유역 내 산림은 생태계 유지에 있어 중요한 역할을 맡고 있으며 생태네트워크 체계를 구성하는 주요 기반 환경이다. 그러나 지난 수십여 년간 행해진 무분별한 개발사업으로 인해 산림 파편화 및 토지이용 변화가 가속화되었으며 본래의 기능을 상실하게 되었다. 산림 생태계를 파악하는 데 있어 산림의 구조적 패턴은 생태적 과정과 기능에 직접적인 영향을 미치기 때문에 변화패턴을 파악하고 분석하는 것은 중요한 인자라 할 수 있다. 이에 본 연구는 금강 상류 댐 유역을 대상으로 FRAGSTATS 모델을 통해 시계열적인 토지피복변화에 따른 산림 경관의 구조적 변화를 분석하였다. 토지피복 변화탐지를 통한 금강 상류 댐 유역 내 토지피복변화는 1980년대부터 2010년대까지 산림 33.12㎢(0.62%), 시가화건조지역 67.26㎢ (1.26%) 증가하였고 농업지역 148.25㎢(2.79%) 감소하였다. 유역 내 산림 경관분석결과 No sampling 분석에서는 경관백분 율(PLAND), 면적가중근접지수(CONTIG_AM), 평균 중심지 면적(CORE_MN), 인접지수(PLADJ)가 증가하였고 패치 수(NP), 경관형태지수(LSI), 응집지수(COHESION)가 감소하였다. Moving window 분석을 통해 구조적 변화패턴을 파악한 결과, 경상북도 상주시, 충청북도 보은군, 전라북도 진안군 내 산림 경관은 상대적으로 잘 보전되어 있었으나 충청북도 옥천군, 영동군 그리고 충청남도 금산군 사이의 경계부와 전라북도 무주군과 장수군 인접 지역의 산림 경관에서는 파편화가 진행되고 있었다. 결과를 토대로 추후 해당 지역의 산림 관리전략 수립 시 파편화 지역을 대상으로 조림사업을 수립할 필요가 있을 것으로 사료된다. 본 연구를 통해 산림 경관의 파편화가 예상되는 지역을 도출할 수 있었으며, 유역 산림의 건전성 평가 및 관리계획 수립을 위한 기초자료로써 활용될 가능성을 기대할 수 있다.
        4,500원
        19.
        2023.08 KCI 등재 구독 인증기관 무료, 개인회원 유료
        To identify sand crab Ovalipes punctatus populations and establish management units for each population, mtDNA COI regions were analyzed. As a result, the clade of O. punctatus in Korea were separated by two with a genetic distance of 0.17 – 2.08%, and there was no significant difference in the result of pairwise FST values representing genetic differentiation by sampling areas (p > 0.05). Also, no geographical separation found in the distribution of haplotypes and the results of the haplotype network. This result suggests that O. punctatus larvae were dispersed for a long time by the ocean current by suffering meroplanktonic period for 1 month, and increased the gene flow due to the development of the swimming legs for the increase in mobility. Therefore, in the results of mtDNA COI region analysis of O. punctatus in the East Sea, Yellow Sea, South Sea and East China Sea (Ieodo) of Korea, no clear intra-species differentiation was found.
        4,000원
        20.
        2023.08 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Cellular myxoma is an uncommon type of myxoid benign tumor, predominantly occurring in adult female patients aged >40 years. This report aims to document a case of cellular myxoma that occurred in the buccal mucosa. Compared to intramuscular myxomas, cellular myxoma demonstrates hypercellularity and vascularity. Its manifestation in the soft tissue of the head and neck area is exceptionally rare. Generally, cellular myxoma manifests as a firm and immovable mass covered with normal oral mucosa, with no associated clinical symptoms. Homogenous low signal intensity on T1-weighted scans and high-signal intensity on T2-weighted magnetic resonance scans reveal cellular myxoma, as most lesions show well-defined margins and heterogeneous contrast enhancement. The significant histologic features include a focal or diffuse increase in cellularity with fibroblast-like cells and vascularity with an abundant collagenous matrix. Our presented case reflects these facts examinations, based on which a final diagnosis of cellular myxoma was made. Immunohistochemistry revealed locally and diffusely positive SMA and CD34. The clinical tendency of cellular myxoma with hypercellularity may affect the production of myxoid and collagenous substrates, and if complete resection is not performed, the possibility of local recurrence in the primarily affected region remains. Hence, complete surgical excision was performed under general anesthesia, and follow-up until a year after treatment revealed no observed recurrence. To achieve precise diagnosis and complete treatment without local recurrence, several diagnostic examinations should be considered.
        4,000원
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