In this study, a comparative dissolution experiment was conducted between an immediate-release and a controlled-release vitamin C tablet applied with a technology to control the dissolution of vitamin C to maintain the vitamin C level in the human body. In order to confirm the dissolution rate (%) of vitamin C tablets, HPLC determination was conducted based on the dissolution test methods in the ‘Korean Pharmacopoeia (No. 2020-88),’ ‘Guidelines on Specifications of Dissolution Tests for Oral dosage Forms,’ and ‘Standard and Specifications for Health Functional Foods (No. 2020-63)’ from Ministry of Food and Drug Safety (MFDS). In addition, the dissolution pattern between the immediate-release tablet and the controlled-release tablet was comparatively analyzed. The analysis result confirmed that the immediate-release vitamin C tablet was 100% dissolved after 45 minutes, while the controlled- release vitamin C tablet was 100% dissolved after 480 minutes (8 hours). Furthermore, the dissolution rate (%) at 60 minutes was slower than that of the immediate-release vitamin C tablet. Based on these results, this study confirmed that the dissolution rate (%) test and development of controlled-release tablets containing vitamin C as the main component a re possible.

This study attempted to analyze how dancheong for palace tablets during the Joseon period was designed as related to what plans and what materials were being used. It also investigated how this unique culture formed. The results found the following: First, the tablet dancheong unveiled through literature was designed using diverse techniques such as jinchae and yeokcheongchil. In jinchae, shell powder was applied to the tablet as the first lacquering, and then was colored. Second, in lacquer, maechil, chaesaekchil and jeohyeoptaechil were used. In yeokcheongchil, vegetable black, oil ash and perilla oil were applied to bitumen. Third, during the Joseon Dynasty, dancheong was applied to a tablet after first lacquering just like the danpihoe lacquering of Jiangsu Sheng, China. This tablet dancheong technique was developed based on a unique Korean lacquering culture that had been handed down from ancient times.

Tablets and the omnipresent mobile environment create opportunities and challenges for m-commerce (mobile commerce) vendors, seeking to increase their profits. Understanding factors that affect that consumer behavior, positively and negatively, in tablets is essential for vendors in order to provide a fruitful m-commerce customer experience. The objective of this paper is to facilitate the understanding of consumers’ perceptions and behavior in m-commerce and social media on tablets and explore the potential of tablets for m-commerce purposes. The paper reports the findings of two exploratory research studies on wine and luxury goods. The first study examines consumer perceptions of the use of tablets and social media, in the context of m-commerce of wine. The second study relates to selling of luxury goods through the Internet. The results of our qualitative analysis show that user experience and design aspects, such as ease-of-use, are important factors for tablet adoption and use for m-commerce and social media. Adapting web content to tablets is, therefore, critical to enable effective m-commerce on this popular device. Business opportunities enabled by tablets and social media in m-commerce and how these can be leveraged in the wine and the wider luxury goods context are discussed.

본 연구는 최근 교사의 전문성 신장을 위한 방안으로 수업 성찰 활동에 대한 관심이 고조되 고 있는 시점에서 ‘목표’, ‘경험’, ‘관찰’로 구성된 성찰 질문과 태블릿을 활용한 지속적․협력적 성찰 활동이 교사의 수업 전문성 신장에 어떻게 기여할 수 있는지를 질적으로 탐색하였다. 연 구 결과, 첫째, 참여자들은 ‘관찰’을 통한 학습자 이해를 바탕으로 기존의 교사 중심의 수업 실 천 관점에서 학습자 중심의 학습 목표 수립 및 학습 상황에서 발생하는 문제들에 대해 적극적 으로 대처해나가는 ‘실천 속의 성찰’의 모습을 나타내었다. 둘째, 참여자들은 일련의 협력적 성 찰 활동의 참여 경험으로부터 연구․실천을 포괄하는 성찰 환경으로서 교사 학습공동체 형성 의 필요성을 요구하였다. 셋째, 본 성찰 활동에서의 태블릿은 일련의 수업 실천 과정에서 상황 맥락적 활용성을 나타내었고, 성찰 공간의 물리적 확대와 함께 협력적 성찰 공간을 제공함으로 서 상시적 성찰 활동 참여와 유지, 학습 공동체 형성을 위한 매개체로써 기능하였다.