본 연구는 대학의 ‘정신 건강’ 프로그램의 가족 참여가 학생에게 미치 는 영향을 탐구하는 것이다. 가족과 학생 및 교사를 대상으로 질적 사례 연구 방법을 활용하였다. 가족, 학생 및 교사를 대상으로 하여 관찰, 심 층 인터뷰 및 문헌 수집을 통해 데이터를 얻었다. 이에 대한 연구 결과 는 첫째, 가족의 무시와 사회적 압력은 대학생 정신건강 문제의 ‘보이지 않는 촉매제’로 작용하며, 학생들은 외부 압력에 대응하기 위해 ‘마음의 벽을 쌓는’ 형태로 자신을 보호하고 있는 것으로 나타났다. 둘째, 가족 구성원 간의 신뢰와 상호작용 부족, 거리감과 압박감이 존재하며, 이는 ‘거리를 둔 가족 관계’의 결과물로 보인다. 셋째, 교사는 ‘소통의 다리 역 할’을 수행하여, 부모가 ‘경청과 동반’을 통해 자녀의 감정 표현을 이해 하도록 유도함으로써 가족 간 ‘마음의 소통’을 점진적으로 실천하도록 지 원하였다. 이러한 연구 결과는 가족 참여가 대학생의 정신건강 문제와 가족 관계를 개선하는 데 도움이 되고 있음을 보여준다. 그러므로 대학 은 학생들의 정신 건강 수준을 향상시키기 위해 가족 참여한 ‘정신 건강’ 프로그램을 지속적으로 추진해야 한다.

Pyrolysis of methane is a carbon-economic method to obtain valuable carbon materials and COx- free H2, under the carbon peaking and carbon neutrality goals. In this work, we propose a methane pyrolysis process to produce graphite and H2 using bubble column reactor containing NiO/Al2O3 and NaCl–KCl (molten salt). The process was optimized by the different amounts of NaCl–KCl, the CH4/ Ar ratio and temperature, indicating that the CH4 conversation rate could reach 92% at 900 °C. Meanwhile, we found that the addition of molten salt could obtain pure carbon materials, even if the conversation rate of CH4 decreases. The analysis of the carbon products revealed that graphite could be obtained.

In view of the activated carbon pore-forming mechanism, the fractal hypothesis of pore interior growth was proposed by optimizing the structure of Sierpinski sponge. Based on the hypothesis and the definition of fractal dimension, the function relationship between the reaction degree, reaction step length, specific surface area and pore volume was deduced, and the pore fractal growth model of activated carbon activation process was established. Semi-coke, apple charcoal and lychee charcoal were used to prepare activated carbon. The pore size distributions of the activated carbons are in accordance with the fractal growth hypothesis. Further, the reaction degree and reaction step length can be determined by the experimental data of pore and surface structure, which verified the feasibility of the pore fractal growth model.

Tourism and hospitality service providers have been seeking ways to engage customers into the value creation process to deliver personalized customer experience. Rapid development of information communication technology has facilitated such practice by providing various computer-based or mobile platforms. While online platforms such as social network sites and online communities have received most research attention, mobile instant messaging (IM) remains under-researched in spite of its unique potential for firm-customer interaction and communication. Based on service-dominant logic (Vargo & Lusch, 2004) and computer-mediated communication theories (Walther, 1996), this study examines (1) the factors influencing customers’ perceived co-creation experience facilitated by mobile IM, and (2) customers’ perceived value of personalization results from such experience in the tourism and hospitality context. Data was collected via online survey targeting Chinese users and was analyzed using structural equation modelling. The results found significant positive effects of users’ perceived social presence, perceived media richness and prior experiences on their co-creation experience. The significant positive relationships between customers’ co-creation experience and perceived personalization of the service offering validate the unique potential of mobile IM to engage customers into value co-creation with tourism and hospitality service providers. The findings extend the theoretical framework of value cocreation to a context mediated by mobile IM. Managerial suggestions are provided for tourism and hospitality companies to engage with customers using mobile IM.