한국산 복숭아거위벌레속(딱정벌레목: 바구미상과: 주둥이거위벌레과)의 분류학적 재검토를수행한 결과 애복숭아거위벌레(Rhynchites (Rhynchites) fulgidus Faldermann, 1835)를 국내 처음으로 확인하였다. 본 연구에서는 한국산 복숭아거위벌레속 2종(애복숭아거위벌레, 복숭아 거위벌레)의 형태학적 재기재를 제공한다. 또한, 한국산 복숭아거위벌레속 종들의 분류학사에 대한 고찰과 2종에 대한 분류 검색표를 제시한다.

In this study used Computational Fluid Dynamic analysis to examine NOx reduction in hydrogen combustion, analyzing six conditions with varying air/fuel ratios, temperatures, and concentrations. Results were compared between two combustor shapes and previous experimental data. Findings showed increased air/fuel ratios decreased flame temperature and increased post-combustion O2. NOx emissions peaked at high temperatures and low O2. Numerical results aligned with previous experimental trends, validating the approach. Combustor shape differences, reflecting variations in fuel and air pipes, significantly affected flow rates and combustion positions. This reduced NOx emissions up to a certain air/fuel ratio, but excessive increases diminished this effect. The study highlights the complex relationship between combustor design, operating conditions, and NOx emissions. Further research is needed to optimize NOx reduction by considering pipe numbers and combustion locations. Future studies should explore various combustor geometries, fine-tune air/fuel ratios, and investigate additional parameters influencing NOx formation and reduction in hydrogen combustion systems.

This study investigates the preferences and purchase intentions of ZEPETO users regarding fashion brands that have recently joined ZEPETO, a leading metaverse platform in South Korea. The study surveyed 279 users in their 20s to 40s about their usage patterns, preferences, and purchase intentions toward products from brands like MCM, DKNY, Nike, and Puma. The results reveal that users in their 20s exhibited higher preference and purchase intention for Nike products, as well as greater purchase intention for Puma products. On the other hand, users in their 40s displayed a higher preference and purchase intention for MCM and DKNY products and a stronger preference for Puma products compared to other age groups. Users in their 30s showed a lower preference and purchase intention for both MCM and Puma products, a lower purchase intention for DKNY products, but a preference for Nike products compared to other age groups. Furthermore, men showed a higher preference and purchase intention for most brands, including MCM, Nike, and Puma. These results suggest that fashion brands on ZEPETO need to implement effective marketing strategies targeting users in their 20s and 40s, as well as male users. This study lays the groundwork for further research on the ZEPETO metaverse platform and provides foundational data for understanding user behavior, essential for establishing effective promotional strategies.

본 연구는 작약의 품종간 개화시기 차이와 저온에서 장기 저 장이 가능한 품종을 선발하여 절화 유통 기간을 연장하기 위하 여 수행하였다. 작약 24품종을 대상으로 2022년 국립원예특작 과학원 시험포장에서 개화시기와 절화 품질을 조사하였다. 봉오 리 상태에서 수확한 작약을 건조 저장법으로 -1℃에서 60일 저장한 후 절화 수명과 절화품질을 조사하였다. ‘의성작약’은 홑 꽃이었고 나머지 품종은 겹꽃이었다. 개화시기는 5월 10일부터 18일 사이였으며, ‘Etched Salmon’, ‘Monsieur Jules Elie’, ‘Gilbert’, ‘Henry Bockstoce’는 개화일이 5월 10일로 가장 빨랐고, ‘Elsa Sass’는 5월 18일로 가장 늦었다. 식물체 키는 74.6∼107.8cm 였고, 절화 무게는 ‘Henry Bockstoce’ 품종 이 89.8g으로 가장 무거웠고, ‘Angel Cheeks’ 품종이 26.7g으 로 가장 가벼웠다. 꽃의 주된 색은 흰색, 빨강색, 분홍색, 자주색 이었다. -1℃에서 60일간 저장 후에 꽃과 잎의 상태가 아주 양 호한 품종은 ‘Kansas’, ‘Ole Faithful’, ‘Sonw Mountain’이 었다. 절화수명은 ‘Nick Shaylor’ 품종이 8일로 가장 길었고, 다음으로 ‘Blush Queen’, ‘Elsa Sass’ 품종이 7일이었으며, ‘Gilbert’, ‘Highlight’ 품종이 1일로 가장 짧았다. 작약은 저온 장기 저장에서 일부 품종을 제외하고는 꽃과 잎에 저온장해 증 상이 발생하였다. 이와같은 결과는 작약재배시에 품종 선택과 수확후 저온 장기 저장을 통하여 유통기간을 연장하고 하고자 할 때 기초자료로 활용될 수 있을 것으로 기대된다.

This study aims to analyze consumer perceptions of the metaverse platform and luxury fashion brands in relation to consumer lifestyles, thereby providing foundational data for future marketing strategies of fashion brands using the metaverse. A survey on the lifestyle and perceptions of the metaverse, as well as on luxury fashion brands, was conducted among 300 men and women between their 20s and 40s. Statistical analyses included frequency analysis, cross-tabulation, chi-square (χ2) analysis, factor analysis, cluster analysis, one-way ANOVA, and Duncan’s post-hoc test. Factor analysis of the participants’ lifestyles revealed five distinct types: “Indifferent,” “Social, individual, and leisure-oriented,” “Trend-leading and brand-oriented,” “Appearance and fashion-oriented,” and “Self-improvement-focused and individualistic” types. The analysis of luxury fashion brand perceptions based on lifestyle types showed that the “Trend-leading and brand-oriented” type had higher awareness and preference for brands such as Gucci, Burberry, and Balenciaga, while the “Indifferent” type showed lower levels of awareness and preference. Regarding brand perception related to luxury fashion brand content experiences within the metaverse, Gucci, Burberry, and Balenciaga showed consistent results across all types. Specifically individuals classified under the “Trend-leading and brand-oriented” category exhibited higher awareness and preference for these brands within metaverse experiences, while those categorized as “Indifferent” displayed comparatively lower levels. Therefore, digital marketing strategies targeting consumers under the “Trend-leading and brandoriented” category are expected to be highly effective for luxury fashion brands. This study is poised to contribute to the expansion of the marketing landscape within the metaverse virtual world for fashion.

Water lettuce (Pistia stratiotes L.) is a free-floating perennial herbaceous plant with rosette leaves and a stem. Although this plant multiplies and has adverse effects on aquatic ecosystems, it can be used for biological purification of polluted water and production of valuable substances as a traditional medicine. In this study, we report a protocol to establish an in vitro micropropagation method based on direct shoot organogenesis from stem explants. In media comprising two types of basal medium and different growth regulators, multiple shoot organogenesis was observed on stems. The micropropagation method was most effective on Schenk and Hildebrandt (SH) medium with 1 mg/L indole-3-acetic acid and 2 mg/L 6-benzylaminopurine supplemented with 30 g/L sucrose, on which all explants produced multiple shoots. The shoots rooted spontaneously on solid half-strength Murashige and Skoog (MS) and SH media without growth regulators (1/2MSO and 1/2SHO). However, roots developed more vigorously in liquid media. Regenerated plants colonized and grew more rapidly in SH basal medium than in MS basal medium and produced 6–8 stolons within 2 weeks on 1/2SHO. In summary, we established a method for micropropagation in vitro through direct organogenesis of water lettuce, which shows the potential of water lettuce as a model aquatic plant for phytochemical and pharmacological research.

현재 기후변화 및 산업화 등으로 생물다양성 감소, 환경오염에 대한 위기가 확산되고 있어 지속가능한 미래설 계에 대한 관심이 높아지고 있다. 이에 따라, 본 연구에서는 대표 도시숲인 국립세종수목원에 조성된 총 16개 전시원을 대상으로 총 6차례에 걸쳐 방문곤충과 화분매개곤충 다양성을 조사하였다. 조사시기별 분석결과로 2차(‘23.7.31) 조사 시기에 가장 다양한 종을 확인할 수 있었으며(총 80종), 전시원별 분석결과 숲정원에서 가장 다양한 종을 확인할 수 있었다(총 59종). 또한 주요 식물 6종(배롱나무, 나무수국, 무궁화, 좀개미취, 범부채, 부처 꽃)에 7~10월 기간 중 양봉꿀벌, 애황나나니, 호박벌, 네발나비, 호랑나비, 흰점박이꽃무지, 호리꽃등에, 배짧은 꽃등에가 화분매개 행동을 하는 것을 확인하였다. 본 발표에서는 2023년 국립세종수목원 전시원 내 방문곤충 및 화분매개곤충 다양성 연구의 구체적인 결과를 제시하고, 곤충의 보전 필요성, 도시숲 내 체계적인 방문곤충 및 화분매개곤충 조사의 중요성에 대하여 논하고자 한다.

최근 국제적인 기후변화로 인해 다양한 산림해충들이 새로운 국가 또는 인접한 지역으로의 분포 확대가 증가 하고 있는 추세이다. 국내외의 대표적인 산림해충 분류군인 나무좀아과와 하늘소과에는 넓은 기주식물 범위를 가지고 있어 산림 생태계에 직간접적으로 피해를 야기하는 종들이 다수 포함되어 있다. 본 연구에서는 2023년 5월부터 10월까지 남북 접경지(강원 철원군, 양구군, 고성군) 내 혼합림에서 린드그렌 퍼넬 트랩(Lindgren funnel trap)을 활용하여 4가지 유인제(Ipsenol, Ipsedienol, Alpha-pinene, Monochamol) 조건별 나무좀류와 하늘소류의 유인효과와 시기별 발생 양상을 조사하였다. 연구 결과, 나무좀아과는 총 26속 45종 7,743개체, 하늘소과는 총 35속 42종 649개체를 확인하였다. 본 발표에서는 남북 접경지에서의 시기별, 지역별 나무좀류와 하늘소류 발생 양상과 4가지 유인제별 효과에 대한 결과를 보고한다.

The Chalcididae belong to a medium-sized family of parasitoids in the superfamily Chalcidoidea (Hymenoptera). Chalcidids can be recognized by the swollen hind femur, the indistinct prepectus, the sharp occipital carina bordering the gena posteriorly, and the strong punctation of the mesosoma. They have been recorded parasitizing six insect orders, and several species are facultative or obligate hyperparasitoids. More than 1,500 species in 90 genera have been recorded worldwide, of which 12 species in six genera have been recorded in South Korea. As a result of taxonomic and faunal studies on Korean Chalcididae, we have found two newly recorded species, Haltichella nipponensis Habu and Dirhinus anthracia Walker, in Korea. These species were discovered using Malaise traps, Lindgren funnel traps, and observation with the naked eye in Jeonbuk, Gangwon province, and Sejong city in 2023. The genus Haltichella Spinola, 1811, is recorded in Korea for the first time. In this presentation, we provide morphological and ecological information on these species.

Fast-paced advancements in technology demand swift adaptation and presents new opportunities and challenges for the optimization of communication, especially for advertisers. Digitalization and new developments in ICT have brought significant changes to the ways in which information, especially promotional messages, is disseminated to consumers. Additionally, with explosive interests in anticipation of fully autonomous vehicles, this study identifies and addresses the potential to optimize communication in an under examined digital media environment – in-vehicle infotainment system. Therefore, this study proposes a text-image embedding method recommender system for the personalization of multimedia contents and advertisements for in-vehicle infotainment systems. Unlike most previous research, which focuses on textual-only or image-only analyses, the current study explores the understanding, development and application of text embedding models and image feature extraction methods simultaneously in the context of target advertisement research. Overall, this study highlights the need to adapt to the ever-evolving technological landscape to optimize communication in various digital media environments. With the proposed text-image embedding method, this study offers a unique approach to personalizing multimedia content and advertisements in the under-explored digital media environment of in-vehicle infotainment systems.