PURPOSES : The purpose of this study is to verify the influences on the compactibility evaluation of WMA (Warm Mix Asphalt) mixture by laboratory experiments. METHODS : Two types of WMA additives (chemical and wax types) and two types of compactors (marshall and gyratory) are used in laboratory experiments. In addition, two types of WMA processes (wet and dry) are tested to verify the impact of manufacturing process. RESULTS : The laboratory results show that the effects of compaction method on compactibility are different depending on the type of additive. The compaction method has a significant impact on WMA mixture with chemical type additive to extent that it determines whether required criterion is satisfied, but only little on WMA mixture with wax type additive. In the case of wet process for WMA mixture manufacturing, it is hard to assess the air void of HMA mixture made of same asphalt binder used in WMA mixture since the additive has already been added in asphalt binder. And the test results show that air voids of HMA mixture vary within properties of asphalt binder. CONCLUSIONS : Through this study, it is found that compactibility of WMA mixture is affected by the compaction methods depending on the additive types and by the WMA mixture manufacturing process. Therefore, those are recommended to be considered when evaluating compactibility of WMA mixtures.

Throughout recent years, many physical establishments were forced to close, and events were canceled due to the outbreak of Covid-19. Consequently, brands, especially luxury brands, saw their contact with consumers greatly diminished and revenues decreased significantly (D’Arpizio et al., 2021). On the contrary, the global gaming industry saw its demand, exposure, and revenues increase. In fact, this industry is expected to exceed $200 billion by the end of 2023 (Gilliland, 2020), and there were more than 2.6 billion players worldwide in 2020 (Palframan, 2021). Thus, in 2020, many luxury brands opted to significantly upsurge their investments in the world of online gaming. The adoption of game advertising also represents a way for the luxury industry to adapt to its current target, as 81% of Gen Z and 77% of Millennials are gamers (Jain, 2021). By 2025, both generations are expected to account for 50% of the market, making them important players in the sector. However, there is still little empirical research regarding consumers’ perceptions of game advertising in the context of luxury brands. Thus, this research aims to study the impact that brand credibility and the use of game advertising have on the perceived coolness of luxury brands and, subsequently, on their equity.

As part of an effort to promote the circular economy, an effective marketing communication is needed to convince consumers to choose the environmentally-friendly products. How a marketer frames a communication message, together with a consumer characteristic which shapes how a consumer thinks and feels, should influence consumer perception, as well as their decision regarding the green purchase. There remains a literature gap in this area in which the current research seeks to add its contribution. This paper investigated how message framing and self-construal influences consumer perception in supporting the environment. A 2 (holistic versus analytical message frame) x 2 (independent versus interdependent) self-construal between-subject experiment was designed. The research context is an apparel industry. It was found that independent (vs interdependent) self-construal respondents have higher environmental perception of the product. This surprising result is actually not in line with the hypothesis, yet yields insightful finding that opens up discussion and new avenue for the future research in this area.

The outbreak of COVID-19 has brought significant changes to today’s life. Human contact is regarded as a source of risk. Thus, the low-contact services provided by service robots have gained more attention in the hospitality industry. However, a relatively smaller proportion of empirical research exists about service robots on the consumer side. Moreover, technology acceptance theories were mostly used in the adoption of new technology products, but the psychological aspects of consumers were rarely explored. Therefore, the stimulus- organism-response model (SOR model) was applied to explore consumers’ acceptance of adopting service robots and to understand what factors will successfully stimulate consumers’ subsequent value and behavioral responses. Furthermore, we investigated the relationship among stimulus (coolness and affinity), organism (utilitarian value and hedonic value) and response (intention to use and word-of-mouth recommendation). This study used convenience sampling and tested the hypotheses with SPSS and Smart PLS.

In this study, We designated the injection molded plug housing for charging electric vehicles as a research subject. And we analyzed the effect of Rib design on the quality of injection molded products. First, we used the Taguchi method to derive optimal conditions for rib design. The factors were set as the Thickness of the rib, the Height of the rib, and the Radius of the rib. Each factor consisted of 5 levels and generated conditions for a total of 125. We performed an injection molding analysis and confirmed significant factors affecting the deformation of injection molded products through ANOVA. Based on this, the 25th design detail was selected as the optimal condition. In addition, We compared the results of the molding analysis with the molded products that did not design ribs. We confirmed that the molded product designed with ribs under optimal design detail improved the deformation amount by 22.22% and the residual stress by 8.35%, compared to the molded product not designed with ribs.

본 연구의 목적은 간호대학생의 의료 관련 감염 예방 지식과 감염관리 자신감, 표준주의 실행도 간의 관계를 확인하고 표준주의 실행도에 미치는 영향을 파악하기 위한 서술적 연구이다. 자료 수집은 2018년 10월4일부터 10월 12일까지 G 광역시에 소재한 간호대학생 160명을 대상으로 진행되었다. 연구 결과 표준주의 실행도는 감염예방 지식(r=.27, p<.001), 감염관리 자신감(r=.52, p<.001)과 정의 상관관계 가 있는 것으로 나타났고, 감염예방 지식은 감염관리 자신감((r=.27, p=012)과 유의한 상관관계가 있는 것 으로 나타났다. 간호대학생의 표준주의 실행도에 영향을 미치는 요인은 감염관리 자신감(β=0.45, p<.001), 피부 접촉 경험이 없는 경우(β=0.18, p<.004), 감염예방 교육을 받은 경우(β=-2.65, p<.009), 감염예방 지식(β=0.15, p<.019) 순으로 나타났으며 모형의 설명력은 35%로 나타났다. 본 연구 결과를 토 대로 간호대학생의 표준주의 실행도를 높이기 위하여 감염예방 지식과 감염관리 자신감을 높일 수 있는 표 준주의 프로그램을 개발하여 시행하는 것이 필요하다.

본고는 한국 만두문화의 기원이 되는 고려시기 만두문화의 전체상을 조망 하기 위한 고찰이다. 선행연구들은 고려말 충렬왕 시기 『쌍화점』의 ‘쌍화’를 한국 만두의 기원으로 간주해오고 있다. 그러나 고려사회는 ‘불교사찰의 채 식만두문화’와 ‘왕실과 민간사회의 육식만두문화’가 『쌍화점』의 ‘쌍화’ 이전 시기부터 고려사회에 정착하여 지속되어 오고 있었음을 밝힌다. 고려 불교채식만두는 13세기 초 수선사 2세인 진각국사 혜심의 『조계진각 국사어록』에 등장하는 불교채식만두인 ‘산함(餕餡)’과 이규보의 『동국이상국 집』에 언급된, 이규보가 평소 교류가 있었던 기선사(其禪師)로부터 받은 만 두류 음식인 ‘혼돈(餛飩)’을 통해 확인된다. 이 시기에 고려불교사찰은 아침 메뉴로 전통적인 죽과 더불어 만두류 음식인 혼돈을 식용하였을 것으로 생각 된다. 고려시대 육식만두의 전통은 국가행사인 연등회와 팔관회의 의례 속에 등 장하는 ‘쌍하(雙下)만두’와 고려가요 속에 언급된 『쌍화점』의 ‘쌍화만두’를 통해 살펴볼 수 있다. ‘쌍하’는 당시 동아시아 왕실과 사신접대에 등장하는 만두류 음식으로 낙타의 육봉을 속재료로 한 왕실연향에서 사용되는 ‘쌍하타 봉각자(雙下駝峰角子)’와 사신접대 등에 사용되는 타봉을 사용하지 않은 ‘쌍 화관장만두(雙下灌漿饅頭)’나 ‘쌍하각자(雙下角子)’등으로 구분된다. 『쌍화점』의 ‘쌍화만두’는 고려사회에 정착한 외국인인 회회인(回回人) 상 인이 팔던 만두로 양고기와 밀착된 그들의 음식문화와 고려사회에서 도축업 에 종사한 사실 등을 토대로 ‘양고기만두’였을 가능성을 엿볼 수 있다. 위의 고찰로 미루어 볼 때 고려시대 한국 만두의 기원은 『쌍화점』의 ‘쌍 화’에서 시작되었다기보다는 아마도 북송과 맞물리는 시기에 불교사찰의 채 식만두문화와 왕실과 민간의 육식만두문화가 이미 존재하였을 것으로 생각 된다.

Bentonite, which mostly consists of montmorillonite, is considered as a suitable buffer material for disposal of high-level radioactive wastes in deep geological repository due to its high swelling capacity, low permeability, and strong retention capacity of radionuclide migration. Alkaline and saline solutions originated from degradation of cementitious material and seawater intrusion, respectively, may cause the changes in mineralogical and chemical properties of montmorillonite with various processes such as cation exchange within the interlayer, dissolution of montmorillonite, and precipitation of second minerals. In this study, montmorillonite alteration under alkaline and saline environments and its influences on retention of cesium and iodide by bentonite buffer were investigated. The reactions of bentonite (Bentonil-WRK) with alkaline solutions (0.1 M KOH and NaOH) and simulated saline solution were performed for 7 days in batch experiments at 25°C. After the experiments, reacted bentonite samples were characterized by X-ray diffraction (XRD), Fourier Transform Infrared (FTIR) spectroscopy, Short Wavelength Infrared (SWIR) spectrometry. The concentrations of cesium and iodide dissolved in the solutions were analyzed using an inductively coupled plasma mass spectrometer (ICP–MS). The XRD patterns showed significant decrease in the interlayer space of montmorillonite after the reaction with alkaline solution due to cation exchange and change in hydration status at the interlayer. The retention of cesium and iodide in alkaline and saline solutions were affected by montmorillonite alteration and ion competition. Therefore, the montmorillonite alteration affecting the nuclide retention capacity and long-term stability of bentonite buffer should be considered in the safety assessment of long-term geological disposal performance.

Background: Pectoralis minor tightness is associated with reduced glenohumeral internal rotation range of motion (ROM) and scapular anterior tilt alignment. However, the synergistic effects of the pectoralis minor stretching exercise and scapular posterior tilt strategy on glenohumeral internal rotation ROM and pectoralis minor length remain unexplored. Objectives: This study examined the effects of doorway stretching with scapular posterior tilt on pectoralis minor length, scapular alignment, and glenohumeral internal rotation ROM. Design: A case series study. Methods: Fifteen adults with pectoralis minor tightness performed doorway stretching with scapular posterior tilt. Pectoralis minor length, acromion–table distance, and glenohumeral internal rotation ROM were measured before and immediately after stretching. The pectoralis minor length was calculated using the pectoralis minor index. The measured variables were analyzed using a paired t-test. Results: While the pectoralis minor index and glenohumeral internal rotation ROM significantly increased, the acromion–table distance markedly decreased after doorway stretching with scapular posterior tilt (P<.05). Conclusion: Based on the present findings, doorway stretching with scapular posterior tilt could be an effective exercise for increasing glenohumeral internal rotation ROM and pectoralis minor length.

본 연구의 목적은 한국 외식기업의 해외시장 진입유형 선택의 결정 요인을 제도이론을 적용하여 검증하는 것이 다. 외식기업에게 중요한 시장지원제도인 지적재산권 보호, 무역 자유, 투자 자유가 진입유형 선택에 어떻게 영향 을 미치는지 분석하였다. 통제와 자원투입 수준에 따라 진입유형을 거래형, 제휴형, 투자형으로 구분하여 순서형 로지스틱 회귀분석으로 검증한 결과는 다음과 같다. 첫째, 현지의 지적재산권 보호 제도가 취약할수록 통제와 자 원투입 수준이 높은 진입유형을 선택하는 것으로 나타났다. 이는 외식기업의 경영 성과에 중요한 지적재산권이 제대로 보호되지 않을 경우 기업은 이를 보호하기 위해 투자 부담이 증가하더라도 통제력이 높은 진입유형을 선 택하기 때문인 것으로 해석된다. 둘째, 무역 자유 제도가 엄격하게 시행될수록 통제와 자원투입 수준이 높은 진 입유형을 선택하는 것으로 나타났다. 외식업은 음식의 맛과 가격이 중요하므로 한국에서와 동일한 맛을 외국에서 구현하기 위해서는 식재료의 반입 가능성과 조달 비용이 매우 중요하다. 따라서 자유무역이 보장되면 필수 식재 료를 한국에서 직접 반출하여 맛과 가격경쟁력을 확보하려는 유인이 작용하는 것으로 볼 수 있다. 이렇게 거래를 내부화 하려는 것은 한식 식재료들이 해외 시장에서 활발하게 거래되는 품목이 아니기 때문에 현지에서 구하기 어려울 뿐 아니라 가격도 매우 비싸기 때문이다. 셋째, 투자 자유 제도에 대한 가설은 유의확률이 높아 채택되지 않았는데, 이는 외식기업의 특성상 마스터 프랜차이즈 계약을 하더라도 본사의 통제력이 상당 정도 확보되기 때 문인 것으로 유추된다. 본 연구는 한국 외식기업이 해외시장에 진출할 때 현지의 시장지원제도에 따라 진입 전략 에 변화를 준다는 것을 실증적으로 규명했다는 점에서 중요한 의미를 갖는다.

It can take hundreds of thousands of years for decreasing radiological effects of high-level radioactive wastes to those of natural background radiation. Therefore, long-term time scale should be considered in order to demonstrate performance and safety of deep geological disposal of the radioactive wastes. The changes of surface environment for these long-term time scale can have influence on safety analysis by changing transport path of radionuclides from the radioactive wastes. Changes in climate is considered as one of main factors causing the long-term changes of the surface environment. The own effects and interactions of climate with other components of the geological disposal system are organized in features, events, and processes (FEPs). In this study, some natural processes occurred by changes of climate were suggested and the connectivity between each process is proposed based on the relation of the FEPs concerned with the changes of climate and surface environment. The processes were classified into global and regional/local scales and was analyzed, respectively. Then, the influences of the processes on shallow groundwater and surface water body environment, which might be transport path of radioactive nuclides in local/site scales, were expected. As the proposed connection demonstrate the order or hierarchical relations of the natural processes, it can shows that some output by a certain process may be input of other process connected the former process in numerical simulations for interpreting the processes. If the connection may be considered to be suitable to represent longterm changes of the surface environment, it can be evaluated that the expected scenarios based on the connection is also proper. In addition, it can be helpful in selecting factors to be studied more detailed in terms of climate change for expecting long-term changes in the surface environment by analysis on the input and output data. The results of this study can be used as basic approaches to represent the long-term changes in the surface environment caused by specific natural processes from changes of climate. It will be also helpful for formulating scenarios related to long-term evolution in the surface environment required for performance and safety assessments of the deep geological disposal.

오디오SNS는 기존의 SNS가 개방성을 추구하는 것과 달리, 제한적 속성을 주 된 특징으로 한다. 본 연구에서는 가치기반수용모델(VAM)을 기반으로 제한적 속성이 사용 자의 오디오SNS 수용에 있어서 어떠한 역할을 하는지 분석하고자 한다. 제한적 속성을 접근 제한성, 소통제한성, 콘텐츠제한성 변수로 정의해 각 변수가 VAM의 핵심 변수를 매개로 인 지된 가치와 사용의도에 미치는 영향을 분석한다. 총 207명의 오디오SNS 사용자 및 잠재 사 용자의 설문 응답을 토대로 분석한 결과에 따르면 3가지 제한성 변수가 인지된 편익 요소인 유용성과 유희성에 영향을 미치며 사용자의 수용의도에 긍정적인 영향을 미치는 것으로 분 석되었다. 본 연구는 가치기반수용모델에 기반한 모형과 새로운 형태의 SNS 성장을 위한 방 향성을 제시한다는 점에서 중요한 의의를 지닌다.

The effects of forest type and fragmentation of forests by a road on the beetle community were investigated in the Gwangneung Forest, South Korea. Beetles were collected monthly using pitfall traps and by sweeping at 16 sites (eight in coniferous forests and eight in deciduous forests) for one year from April 1993 to April 1994, excluding winter. A total of 17,616 beetles belonging to 271 species from 39 families were collected. Among them, Synuchus cycloderus was the dominant species, with 14,060 individuals accounting for 80% of the total population. The influence of forest type (coniferous and deciduous) or sampling region (fragmented by a road) on species richness (number of species) was observed. We found that species richness was substantially different depending on the sampling method and taxa used. Beetles collected using pitfall traps responded more sensitively to habitat types than those collected by sweeping. Four dominant families differently responded to forest fragmentation and forest types. Carabidae was influenced by forest fragmentation, whereas Staphylinidae and Curculionidae were influenced by forest types. Chrysomelidae was not influenced.

본 연구의 목적은 노화에 따라 나타나는 시공간 주의배분능력과 정서지각 편향성의 변화에 대해 탐구하는 것이다. 본 연구에서는 시공간 주의배분능력을 측정하기 위해 useful field of view (UFOV) 과제와 정서지각 편향성을 측정하 기 위해 정서지각과제(emotional perception task)를 사용하였다. 본 연구에는 노인 집단의 23명과 청년 집단의 25명의 총 48명의 실험참가자가 참여하였다. 실험 결과, UFOV 과제에서는 노인 집단이 청년 집단에 비해 느린 반응속도와 낮은 정답률을 보여 노인 집단이 청년 집단보다 저하된 시공간 주의배분능력을 가지고 있다는 것을 나타냈다. 또한, 정서지각과제에서는 노인 집단이 청년 집단에 비해 긍정적 정서지각 편향성과 부정적 정서지각 편향성 모두 크게 나타났다. 상관분석 결과에서는 정서지각과제의 정답률에 대한 부정적 정서지각 편향성이 UFOV 과제의 시야각 30° 조건의 반응속도와 유의미한 정적 상관관계가 나타났다(r=.289). 또한, 정서지각과제의 정답률에 대한 긍정적 정서지각 편향성은 UFOV 과제의 모든 시야각 조건들의 정답률과 유의미한 정적 상관관계가 나타났으며(r=.305, r=.322, r=.299), 반응속도와 유의미한 부적 상관관계가 나타났다(r=-.345, r=-.295, r=-.308). 이러한 결과는 노화가 저하된 시공간 주의배분능력 그리고 긍정적 정서지각 편향성과 부정적 정서지각 편향성의 증가와 관련있다는 것을 의미하고, 노화에 따라 나타나는 긍정적 및 부정적 정서지각 편향성은 저하된 시공간 주의배분능력과 관련성이 있는 것으로 여겨진다.