PURPOSES : This study proposes a method for comparative analysis, based on geographic information systems (GIS), that can be used when introducing demand-responsive transit in areas where public transportation is not available. METHODS : To analyze areas where public transportation is neglected, bus stop location information, building location information, and administrative district boundary data for the census were acquired. Geocoding was used for address-based raw data to create a spatial database. Based on the collected data, the proportion of households separated by a certain minimum distance from a bus stop was aggregated and constructed through near analysis. When introducing a demand-responsive transit system, the operational cost was calculated and compared with the existing city bus transportation cost. RESULTS : Results show that the operating costs of introducing demand-responsive transit can be compared and analyzed using the proposed method, for a case study of Daejeon Metropolitan City. CONCLUSIONS : It is economically efficient to avoid the entry of route buses and introduce demand-responsive transit in areas isolated from public transportation where the number of people getting on and off is extremely low.

After spent fuel is stored in a dry storage container, it becomes difficult to obtain information on the fuel’s characteristics. As a result, it is necessary to identify the characteristics of spent nuclear fuel in advance and secure the information necessary to establish delivery acceptance requirements for interim storage and disposal in the future. Therefore, it is necessary to evaluate the characteristics of spent fuel before loading dry storage casks. In order to prepare for the dry storage of spent fuel, information on the basic characteristics of the fuel is required. As part of this information, it is also necessary to establish calculation criteria for spent fuel burnup. Spent fuel burnup can be classified into three categories. The first is burnup evaluated using design codes (design burnup), the second is burnup measured by furnace instruments during power plant operation (actual burnup), and the third is burnup measured through measurement equipment (measured burnup). This paper describes a comparative evaluation of design burnup, actual burnup, and measured burnup for specific fuels (40 bundles).

이 연구의 목적은 한국인과 싱가포르인의 환갑잔치에서 사용하는 비언 어적 표현을 사회적 변수(성별, 연령별)에 의한 사회언어학적 방법과 공 통점⋅차이점을 대조언어학적 방법으로 고찰하는 것이다. 먼저 상대방이 윗사람인 경우, 전체 공통점은 크게 없지만 차이점은 사회⋅문화적인 정 서가 반영된 결과로 한국인은 정중한 인사(56.2%)를, 싱가포르인은 shake hands(43.4%)을 가장 많이 사용하는 것으로 나타났다. 성별 공 통점은 없지만 양국이 사회⋅정서적 배경이 다르므로 한국인의 남자가 정중한 인사(60.7%)를, 싱가포르인 남자는 shake hands(40.2%)를, 한국 인 여자가 정중한 인사(51.4%)를, 싱가포르인 여자는 shake hands (46.6%)를 사용해 차이를 보였다. 연령별 공통점은 한국인은 연령층이 높을수록 전형적인 ‘정중한 인사’를, 싱가포르인도 격식적인 ‘shake hands(악수)’를, 한국인과 싱가포르인의 젊은 층에서 다양한 종류의 비 언어적 표현을 사용한다는 점이다. 반면 차이점은 연령에 상관없이 한국 인은 정중한 인사(56.2%)를, 싱가포르인은 shake hands(43.4%)를 가장 많이 사용한다는 점이다.

In this study, the safety aspects were studied by comparing the charge control characteristics of the two vehicles when a failure occurs between the OBC including the charging port or the charging door module (CDM) during slow charging using the In Cable Control Box (ICCB) for a long time.When the AC terminal was momentarily disconnected during charging, the Model-3 vehicle was charged normally if the AC circuit was disconnected up to three times, and the charging control was stopped when the number of disconnects reached four times. However, in the Ioniq-5 vehicle, charging control was normally performed when the disconnected AC circuit was normally connected regardless of the number of disconnection.

해양을 이용하려는 수요자 증가에 따라, 해양공간을 합리적으로 배분하기 위해 해양공간계획(Marine Spatial Planning)제도가 도 입되었다. 이 중 어업활동보호구역은 수산자원보호 등 어업활동 보호를 위해 지정되었다. 그러나, 어업활동보호구역을 주로 항해하는 어 선은 우리나라에서 발생하는 해양사고의 약 70 %를 차지할 정도로 위험에 노출되어 관리가 필요하다. 본 연구의 목적은 어업활동보호구 역 내 어선 통항 안전 확보를 위해 어업활동보호구역과 항만·항행구역에서 발생하는 해양사고를 분석하는 것이다. 이를 위해 해양용도구 역의 교통량을 조사하고 선종별, 사고 유형별, 톤수별, 사고원인별, 인명피해별로 해양사고를 조사하였다. 분석 결과 각 유형별 단위 면적 당 해양사고는 대부분 항만·항행구역에서 더 많이 발생하였으나 전체적으로 발생한 해양사고는 어업활동보호구역이 높았다. 특히 인명사 고가 많이 발생하여 통항 안전관리가 필요한 것으로 식별되었다.

Seaweed-derived foods have long been popular in Korea because of their high content of nutrients that are beneficial to the human body. Recently, Korean seaweeds have been used as raw materials to produce new natural products with health benefits. Herein, we compared the antioxidant activity of 16 Korean seaweed extracts to explore their potential utility as health foods. The total phenolic content (TPC) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity of seaweed extracts were determined. We also investigated their ability to protect human diploid fibroblast (HDF) cells against hydrogen peroxide. The results showed that seaweed extracts at a concentration of 100 g/mL did not cause any cell toxicity. Sargassum thunbergii (Jichung-i) had the highest TPC and radical scavenging effects, followed by Porphyra tenera (Gim), Silvetia siliquosa (Tteumbugi), and Sargassum fusiforme (Tot). Hydrogen peroxide increased the production of intracellular reactive oxygen species, while P. tenera (Gim), Saccharina japonica (Dasima), and S. thunbergii (Jichung-i) extracts significantly decreased it. The effect was highest in the S. thunbergii (Jichung-i)-treated HDF cells. These findings indicate that S. thunbergii (Jichung-i) shows promise as a potential antioxidant raw material.

This paper aims to investigate Korean EFL learners’ pragmatic performance in request speech acts in comparison with native speakers of English. Written discourse completion tasks (WDCT) are used to examine how native and non-native speakers request in terms of request strategies, internal modifications, and external modifications. The results show that first, Korean learners had a higher frequency of inappropriate strategies than native speakers. Second, they lacked the quantity and variety of internal modifications both lexically and syntactically. However, regarding external modifications, their use of supportive moves was similar to that of natives in frequency and order. In addition, this study identified newly emergent supportive moves that are Korean-specific and detrimental to communication goals. The findings shed light on pragmatic instruction in the Korean EFL situation by providing research-informed data. Several pedagogical implications are suggested for application in teaching.