본 연구는 춘천 문화도시 사업의 '도시가 살롱'을 올덴버그(Ray Oldenburg)의 '제3의 공간' 이론을 중심으로 분석하여, 공간의 특성과 효과를 고찰하였다. 연구방법으로는 질적 내용분석을 채택하여 문헌조사 를 중심으로 정책문서, 운영자료, 성과보고서 등을 수집하였다. 분석 결 과, ‘접근성’ 측면에서, '도시가 살롱'은 카페, 책방, 식당 등 시민들의 일 상공간을 문화공간으로 전환함으로써 접근성을 확보하여 생활권 내 문화 접근성을 향상시켰다. 둘째, ‘편의성’ 측면에서, 복합공간 구성과 통합 플 랫폼 운영을 통해 이용자 중심의 서비스를 실현했으며, 멤버십 시스템과 월 60여 개의 다양한 프로그램을 제공하여 이용 편의성을 높였다. 셋째, ‘평등성’ 측면에서 세대 통합형 프로그램, 수평적 공간구조, 'ON-다' 프 로그램 등을 통해 읍면 지역의 문화 격차 해소에 기여했다. 넷째, ‘상호 작용성’ 측면에서 시민기획자 중심의 운영으로 이웃 간 관계망을 강화했 고, '동네지식인' 프로그램을 통해 시민들의 자발적 참여와 교류를 촉진 했다. 다섯째, ‘유희성’ 측면에서, '딴짓' 키워드를 활용한 창의적 접근으 로 유희성을 구현했으며, 여섯째, ‘다양성’ 측면에서, 8개 거점 공간의 차별화된 운영과 지역특화 프로그램으로 문화적 다양성을 확보했다. 그 러나 읍면 지역의 접근성 강화, 장애인과 노약자를 위한 편의시설 확충, 문화적 소수자들의 참여 확대, 지속가능한 커뮤니티 형성, 디지털 전환 대응 그리고 민간의 주도적 운영이라는 과제가 도출되었다.
The objective of this study was to categorize consumers' food-related lifestyles into various types and discern the differences in consumer preferences for locally sourced ingredients in Home Meal Replacement (HMR) based on food-related lifestyles. The online survey was conducted from December, 2020, involving 474 adults who registered with Macro Mill Embrain. Statistical analyses, including frequency analysis, descriptive statistics, factor analysis, K-means cluster analysis, and one-way ANOVA were applied to the collected data. The findings revealed the ‘convenience-seeking group,’ the 'high interest in food-related lifestyle group,' and the ‘health and taste-seeking group.’ The ‘convenience-seeking group’ showed a high proportion of respondents (65%) didn’t check the origin, whereas the ’high interest in food-related lifestyle group’ (57.5%) and the ‘health and taste-seeking group’ (66.7) had higher proportions of respondents who checked the origin. Regarding the reasons for preferring locally sourced HMR, all three clusters emphasized safety, hygiene, and fresh ingredients as the most critical factors. This study represented the first exploration into consumer preferences for HMR using locally sourced ingredients, segmented by their food-related lifestyles. The findings provided valuable foundational information for the development of HMR using locally sourced ingredients and could be applied to decisions in the food industry and related policy-making.
The frequency of flooding is increasing due to heavy rainfall caused by climate change and urbanization. In order to prevent flood damage in low-lying areas, systematic measures are needed for urban watersheds. The underground infrastructure of Shinwol was built to sustained heavy rains that occur more than once every 30 years, which has prevent flooding in the area. Additional construction of underground infrastructure facilities is planned in various areas including Seoul and Busan. Overseas countries have installed numerous underground infrastructure facilities for the purpose of preventing flood damage and improving water quality in urban areas, and have verified their social and economic effects. However, since there are still few cases of introduction in Korea, additional research is needed in various fields such as design, construction, operation, and management. In addition, in order to secure the feasibility and economic feasibility of the business, a multipurpose utilization plan must be developed to enhance the value of water resources and underground infrastructure facilities. In order to maximize the flood prevention effect, which is the original purpose, systematic and stable design and operation technology must be secured. The Ministry of Environment was promoted the ‘Technology development for optimizing planning, operation, and maintenance of urban flood control facilities’ project starting in 2024 to secure core technologies for Korea’s customized underground infrastructure. The project aims to develop flood control facility technologies that can protect citizens safety and property from urban flooding. In this paper, investigated the current status of underground infrastructure facilities introduced from overseas for the purpose of responding to urban flooding and examined the improvement effects through introduction.
본 연구의 목적은 C 대학의 교양교육과정 개선을 위해 재학생을 대상으로 교양교육과정 만족도 및 요구조사를 실시하여 교양교육과정 개편에 필요한 기 초자료 제공에 의의가 있다. 본 연구는 C 대학의 재학생 420명을 대상으로 2023년 12월 4주간에 걸쳐 온라인 설문으로 진행하였다. 연구결과 첫 번째 교 양교육인식에서는 교양교육목표로 ‘인격의 완성 및 올바른 가치관의 확립’이 가장 높게 나타났으며 수강신청 시 선택기준으로는 ‘교과목명’이 가장 높게 나 타났다. 교육과정 편성 시 고려해야 할 가장 중요한 요소로 ‘학생들의 요구’가 가장 높게 나타났으며, 교양수업의 방식으로 ‘비대면 온라인수업’이 대면 수업 보다 높게 나타났다. 두 번째 교양교육과정 운영 실태에서는 ‘현재의 비대면 수업 비율’이 가장 높은 비율로 나타났으며, ‘현재 교양학점 축소’ 비율도 높게 나타났다. 세 번째 교양교육에 대한 만족도에서는 ‘교육과정의 체계성’, ‘교수- 학생 상호작용’, ‘수업 방식의 다양성’에서 높은 만족도가 나타났다. 위의 연구 결과를 바탕으로 C 대학 교양교육에 대한 만족도 향상 및 개선 방향을 위해 학생들의 요구를 반영한 교양교육과정 개편이 필요하며, C 대학 특성을 고려 한 교양교육 운영에 시사점을 제공할 수 있을 것이다.
본 연구는 캐릭터 아크(Character Arc)와 트랜스 아이덴티티(Trans Identity) 이론을 결합하여 영화 <사바하> 주요 인물들의 내적 변화와 정 체성 전환 과정을 분석하였다. 연구 목적은 캐릭터 중심 서사 중 다중 캐릭터 간 상호작용이 서사의 복합성과 입체성을 증진하는지를 규명하는 데 있다. 연구 결과, 첫째, 박웅재는 종교적 회의와 세속적 욕망을 극복 하며 진정한 신앙으로 귀환하는 긍정적 변화 아크를 완성하였다. 둘째, 정나한은 거짓된 신념에서 벗어나 자신의 정체성을 재정립하였다. 셋째, 김제석은 거짓된 신념에 집착한 끝에 자멸하며 부정적 변화 아크의 전형 을 보여준다. 넷째, 세 캐릭터 간의 상호작용은 각자의 정체성 전환을 촉 진하며 서사의 주요 동력으로 작용하였다. 인물 간 상호작용이 정체성 변화와 서사 구조의 복합성을 심화시키는 과정을 구체적으로 규명했으 며, 창작 실무에서 설득력 있는 캐릭터 구축을 위한 가이드를 제공한다. 나아가 후속 연구로 캐릭터 아크와 트랜스 아이덴티티의 적용을 다양한 장르와 서사체로 확장할 필요성을 제안한다.
이 연구의 목적은 교육훈련기관의 교육과정과 교육방식 현황분석을 통 해 급변하는 교육환경에 적극적으로 대응하고, 효과적인 교육방식 적용 을 위한 시사점을 제시하고자 하였다. 연구목적을 달성하기 위하여 대표 적인 교육훈련기관의 전반적인 동향을 파악하고, 국가공무원인재개발원 의 사례를 중심으로 교육과정과 교육방식, 그리고 교육목표와의 연계성 등에 대한 현황분석을 통해 교육과정 특성과 교육목표에 적합한 교육방 식 적용에 대한 교육적 시사점을 도출하였다. 연구방법은 교육훈련기관 의 교육운영계획서 및 관련자료, 선행연구 결과 등을 바탕으로 분석하였 으며, 결과에 따른 주요 내용은 다음과 같다. 첫째, 교육과정에 상관없이 대면 교육방식을 가장 많이 적용하고 있다. 둘째 하이브리드 교육방식이 점차 증가하고 있다. 셋째, 교육방식과 교육목표의 정합성 정도에는 큰 차이를 보이지 않고 교육방식과 무관하게 유사한 교육목표 유형을 설정 하고 있다. 따라서 교육과정 특성을 고려한 효과적인 교육방식 채택기준 에 대한 표준화된 지표 개발이 필요하다.
This review paper provides a comprehensive analysis of the measurement and distribution of microplastics in the atmosphere and their role in the adsorption and transport of organic and inorganic pollutants. Due to their small size, large surface area, and hydrophobic nature, microplastics can adsorb a wide range of pollutants, including volatile organic compounds (VOCs) and heavy metals. These pollutants, strongly bound to the surface of microplastics, can remain suspended in the atmosphere for extended periods, facilitating the widespread distribution of contaminants. Building on existing research, this paper systematically reviews the sampling, pretreatment, and analytical methodologies applied to study microplastics in the air. Furthermore, it examines the influence of environmental factors on the adsorption and desorption dynamics of pollutants associated with microplastics. Various studies indicate that microplastics can interact with pollutants such as heavy metals, organic compounds, and microorganisms to form complex contaminants. These complexes can be transported and redistributed across long distances in the atmosphere, amplifying their environmental and health impacts. This review highlights that microplastics are not merely a pollutant themselves but serve as a vehicle for the migration and dispersion of other contaminants. This dual role emphasizes the significant risks microplastics pose to public health and the environment, necessitating further research and effective mitigation strategies.
압축하중을 받는 콘크리트 충전 강관(CFT) 부재는 강관에 의한 심부구속효과로 인해 내부 콘크리트의 취성이 감소하며, 이는 CFT 부재의 압축강도를 크게 증가시킨다. 본 연구에서는 강관을 퍼포본드 리브 전단연결재로 보강하여 콘크리트의 심부구속효과를 향상 시키고, 유한요소해석 모델에서 재료 특성 및 경계 조건을 설정하여 이를 평가하였다. 이때, 강재와 콘크리트 사이의 계면 거동을 보 다 정확하게 모사하기 위해 cohesive element를 사용하였으며, 이를 통해 강관과 콘크리트 간 하중 전달을 모델링하였다. 전단연결재 로 인한 심부구속효과 향상을 검증하기 위해 퍼포본드 리브 전단연결재가 적용된 CFT 부재의 축소 모델에 대한 실험 및 유한요소해 석을 수행하였고, 전단연결재가 없는 CFT 부재와의 비교를 통해 성능 향상이 확인되었다. 퍼포본드 리브 전단연결재는 홀의 지름 및 개수를 변화시키며 파라미터 스터디를 수행하였고, 이로 인해 전단연결재의 전단저항력 변화가 심부구속효과에 미치는 영향에 대해 평가하였다. 전단연결재의 전단저항력 변화에 따른 CFT 부재의 구조적 성능 차이를 분석하면서, 실험과 유한요소해석의 일치성을 검토하였다.
본 논문에서는 소성 설계를 기반으로 한 프레임 구조 설계 시, 기둥의 종류에 따른 구조 제작 비용과 거동의 차이를 연구하였다. 축 력과 횡력을 모두 받는 구조물에 적합한 기둥 부재를 선택하는 것이 중요하며, 플라스틱 설계 방법을 채택할 경우 기둥의 역할이 더욱 강조된다다. 특히, 횡력은 기둥의 연성을 요구하며, CFT(콘크리트 충전 강관)형 기둥은 RC(철근 콘크리트) 기둥보다 높은 강철 비율 로 연성을 확보하게 된다. 이 논문에서는 CFT 기둥이 RC 기둥보다 더 나은 성능을 보이는지 확인하기 위해 다양한 구조 유형에서 기 둥을 설계하고 분석하였다. CFT 기둥을 소성 설계에 채택함으로써 얻을 수 있는 이점은 다양한 구조 유형에 따른 하중 유형의 분석을 통해 제시한다.
발효 느타리버섯재배부산물을 급이한 흰점박이꽃무지 유충의 영양성과 안전성을 검증하고자 참나무 발효톱밥으로 사육한 유충의 영양성분 과 유해물질을 비교분석하였다. 조단백질 함량은 발효 느타리버섯재배부산물을 급이한 유충(OMCB)에서 54.0%로 참나무 발효톱밥을 급이한 유 충(FOS) 47.2%보다 1.1배 많았다. 필수아미노산 중 류신은 OMCB에서 2.8%로 가장 높았고, FOS에서는 2.7%로 비슷한 수치였다. 비필수아미 노산은 OMCB에서 프롤린의 함량이 7.2%로 가장 높았고 FOS (5.6%)보다 1.3배 더 높았다. 무기질 중 칼륨은 OMCB (2771.2 mg/100 g)와 FOS (2765.0 mg/100 g)에서 비슷한 수치였고, 불포화지방산 중 올레산은 OMCB (58.2%)와 FOS (59.6%)에서 가장 높은 함량을 나타냈다. 유 해물질 분석 결과, OMCB와 FOS에서 납, 카드뮴, 비소 모두 식용곤충 중금속 기준에 적합하였고, 식중독균에 속하는 대장균과 살모넬라균은 모두 불검출되었다. 위 연구 결과에 따르면, 발효 느타리버섯재배부산물 급이 흰점박이꽃무지 유충은 단백질과 불포화지방산뿐만 아니라 다양한 영양성 분을 포함하고 있으며, 안전성 또한 검증되었으므로 식용으로 활용하기에 적합할 것으로 판단된다.
This study optimized the gelling agent and rice protein ratio for developing elderly friendly jelly using a response surface methodology. Response surface analysis was conducted with a gelling agent (0.1, 0.2, and 0.3%) and rice protein (3, 6, and 9%) set as independent variables. Increasing the gelling agent and rice protein ratio raised the pH while lowering the total acidity. The sugar content decreased nonlinearly with a higher gelling agent ratio. The lightness (L) and yellowness (b) differed according to the addition ratios of each ingredient, and the hardness peaked at 0.3% gelling agent and 6% rice protein, but excessive rice protein addition led to a decrease in hardness. Response surface analysis indicated an optimal formulation of 0.16% gelling agent and 6.41% rice protein, with all response variables aligning within the predicted ranges, validating the model.
This study aimed to evaluate quality characteristics and functionality of liqueurs made from different plum varieties (chu-hui and Blood Plum) with various maceration treatments. Liqueurs were prepared by adjusting plum extraction content and alcohol concentration from 10% to 50%. After 12 weeks of maceration, the pH ranged from 4.08 to 4.77. Both total acidity and soluble solidsincreased with higher alcohol content. Redness(a*), a key factor affecting consumer preference, was higher in blood plum liqueurs (17.15~52.69) than in Chu-hui liqueurs (-0.31~4.69). Antioxidant activity measured by DPPH and ABTS radical scavenging ability peaked at 8 weeks of maceration, showing variations among treatments. When the extraction ratio of plums was below 30%, the color appeared light. Liqueurs treated with 30% Blood Plum for 8 weeks showed the highest commercial potential. This study provides scientific information necessary for establishing a manufacturing process for plum-based liqueurs.
For domestic companies to enter the market, Vietnam’s rice industry value chain and strategies face the following problems. First, farmers outside the Mekong and Red River deltas suffer from low productivity and quality due to a lack of access to new varieties and technology. Second, quality control is difficult because of the small scale of milling companies and collectors. The double milling system increases distribution margins, leading to price hikes. Additionally, low margins for distributors further exacerbate this issue. Third, the government’s export price controls and advance purchase system result in losses and fluctuations in domestic rice prices, negatively affecting exports. The lack of branding and the perception of low-quality rice also diminish international competitiveness. Fourth, the annual import of one million tons through the southeastern border impacts domestic rice prices. To develop rice market in Vietnam, it would be beneficial to integrate production, milling, and distribution. Additionally, collaborating with organizations such as the KOPIA Center to provide cultivation technology support and establish large-scale demonstration complexes should be considered. Additionally, to increase domestic market share, it is necessary to prioritize marketing efforts such as enhancing promotions and building brands, while emphasizing urban consumers’ preferences for high quality and flavor rather than focusing on exports.
In this study, in order to develop an eco-friendly filtration method that considers the health and safety of the aquatic ecosystem by differentiating it from chemical methods (coagulants, oxidants, etc.), which are mainly used as methods for managing the removal of algae in the algal bloom stage, an effective separation membrane for algae removal was reviewed, an appropriate technology was proposed through field application, and the effect of algae removal was evaluated. The membrane used was applied in the field by constructing an optimal technology through auxiliary facilities with an immersion tubular membrane and a pressurized tubular membrane resistant to adhesive pollutants and algae. As a result, the strong characteristics of Fouling (blocking) by adhesive algae were confirmed, and the effect of removing algae and particulate matter in the immersion type tubular membrane was 99% chlorophyll-a (Chl-a), 99.2% suspended solid (SS), and 96.7% of pressurized tubular membranes, showing excellent effects in removing algae and particulate organic matter. In addition, as a result of field application to eutrophic reservoirs where high-density algae are distributed, it was confirmed that stable operation of algae was possible during the process of filtering, separation, and concentration.
This study was conducted to analyze New Zealand’s beekeeping industry and Manuka honey grading system to suggest characteristics and development plans for Korea’s honey grading system. Manuka honey in New Zealand is harvested from the Manuka tree (Leptospermum scoparium). It is known for its various bioactive properties, including antimicrobial activity and antioxidants. Since 2017, the New Zealand government has been implementing national certification and grading for all exported Manuka honey. For this purpose, compositions of Manuka honey across New Zealand have been investigated and four chemical indicators and one biological indicator have been established. Currently, Korea has been fully implementing a honey grading system since September 2023, which divides honey (acacia honey, chestnut honey, and miscellaneous honey) into 1+ grade, 1 grade, and 2 grade according to Enforcement Rules of the Livestock Act. The following seven indicators are used: carbon isotope consumption, moisture content, sugar ratio, hydroxytmethylfurfural, flavor, chromaticity, and defects, similar to Codex standards or European standards. However, details are modified to suit Korean conditions. To make the Korean honey grading system more stable, it is necessary to develop and introduce different indicators for honey functionality and honey grading system maturity. In addition, it is necessary to expand the participation of farmers in the honey grading system, secure consumer trust in the honey grading system, and continue to promote it.
This study analyzed the status of agrifood consumer competencies and the factors influencing them to provide useful information to improve the quality of life by strengthening the agrifood consumer competencies. The raw data of the 2022 Consumer Behavior Survey for Food collected by the Korea Rural Economic Research Institute were used. The data from 3,321 responses were used for the final analysis. Among the competencies, the average score of the cognitive and practical competencies were 3.543 and 3.459 points, respectively. In addition, the average scores of the specific areas within cognitive competency were 3.587 points for dietary competency, 3.557 points for civic competency, and 3.489 points for purchasing competency. Within practical competency, the average scores of the specific areas were 3.569 points for dietary competency, 3.422 points for civic competency, and 3.392 points for purchasing competency. Gender, age, monthly household income, marital status, administrative district, interest in health, and interest in food safety issues were the significant factors affecting the specific areas within cognitive competency. On the other hand, gender, age, educational level, monthly household income, marital status, administrative district, interest in food safety issues, and each of the areas within cognitive competency had a significant impact on the specific areas of practical competency.
Along with the increase in the number of vehicles in circulation, the indoor air quality in automobiles is attracting attention as another possible health concern. However compared to data regarding indoor air quality in other spaces, there are insufficient data on indoor air quality in automobiles. In addition, there is no standard for the evaluation method. In this study, the change in the concentration of particulate matter in the vehicle while driving under real road conditions was analyzed in order to use it as basic data for a method to evaluate vehicle indoor air quality. Through the selection of measurement target materials and test vehicles and the preparation of test methodologies, evaluation was performed on vehicle, route, and HVAC modes. The concentration of particulate matter in the vehicle was the lowest in the RC (In-vehicle recirculation) condition, and it was confirmed that it decreased with time. The highest average concentration was confirmed in the OA (Outside air ventilation) condition, and the concentration change according to the changing HVAC mode was observed in the Auto condition. The concentration of pollutants inside the vehicle showed a significant correlation with factors such as season, external concentration, and HVAC conditions, along with a weak correlation to powertrain type. The results of this study can be used as basic data for developing methods for evaluating vehicle interior air quality in future work.
This study developed an unmanned autonomous moving algae collection device (HAMA-bot) to remove high-density algae concentrated in the waterfront of urban agricultural reservoirs, and analyzed the effect of algae removal after field application to medium-sized urban reservoir. The algae reduction effect (Chl-a) of the study site in the reservoir by the HAMA-bot operation showed an average 18.5% higher in the treatment area compared to the control area before operation, while the average reduction of 24% in the treatment area after operation. In addition, the Chl-a removal rate, which directly analyzed the influent and effluent of HAMA-bot, showed a very high level with an average of 96.9% (94.7~99.2%). Currently, it is optimized for urban reservoirs and manufactured on a small scale, but it is a useful tool that can be applied on a large scale to large dams and rivers, and it is considered that the field applicability would be improved with the optimized scale.
The Ansan Reclaimed Wetland, reclaimed in 1986 and maintained for 38 years, underwent two wetland function assessments to develop strategies for enhancing biodiversity and conservation. The biota of the reclaimed wetland showed an increase in the number of species observed across most taxa, while the number of amphibian and reptile species decreased. Among legally protected species and specific species, Aix galericulata and Lefua costata were not observed, whereas Libellula angelina were introduced. The results were categorized into “protection or improvement” and “enhancement.” Proposed conservation measures include removing planted shrubs, maintaining waterways, and installing gabion structures and wildlife corridors.
This study was conducted to confirm whether domestic fruit tree pruning residues can replace sawdust, which is the main ingredient of mushroom medium. The five types of fruit tree pruning residues collected were from apples, pears, peaches, grapes, and citrus. The basic components of these residues were analyzed. The pH ranged from 5.2 to 7.0, the Total carbon(T-C) ranged from 46.0% to 47.2%, the Total nitrogen(T-N) ranged from 0.5% to 0.9%, and the moisture content ranged from 12.4% to 14.2%, which was identified as an appropriate range for growing mushrooms. In order to confirm the possibility of mycelial growth of oyster mushroom "Suhan", column tests were conducted based on the conventional medium(poplar sawdust 49.5: cotton seed hull 27.3: beet pulp 12.7: cotton seed meal 10.5, v/v). As a result of incubation at 25°C for 28 days, grape branches showed the fastest growth at 143 mm compared to the control, which showed 135 mm. The yield per bottle was comparable, with grape branches(134g/bottle) and control(139g/bottle). Additionally, the quality of the fruiting bodies was comparable across all Processed lots. It means grape branches can be used as alternative sawdust materal. In the future, it is expected that using by-products as substitutes for carbon sources and main ingredients will help reduce farm production costs and protect the environment.