在邁入知識經濟的現今社會中，企業的生產要素已轉變為以知識為基礎，而學習正是知識經濟時代增加企業競爭力的最佳利器。隨著科技的發展，線上學習(e-Learning)不論在傳統公司或電子化企業中已扮演著重要不可或缺的角色。線上學習的獨特性不但可使教育訓練的成本降低，更可以配合企業的全球化運作，這些優點吸引了許多公司開始規劃線上訓練。但由於目前線上學習多採用Web(World Wide Web)介面並且必須與網際網路連接，所以有發展上的限制且缺乏行動性。因此本研究將應用行動科技結合學習科技來克服這個問題。 　　本研究希望建構一行動學習設計並且整合知識庫，使得知識學習的來源不再僅侷限於學習教材，更能包含整個組織的知識。另外也設計一搜尋機制希望藉此能有效率地執行行動搜尋。 / In knowledge economy, the key factor of production is knowledge. Learning will be the best effective tool to increase the competitiveness in the knowledge-based economy. With the development of Information Technology, Electronic Learning (e-Learning) becomes important, indispensable in traditional business, and e-business. e-Learning with unique characteristics lowers training costs and makes organizational learning global. These benefits catch the attentions of the company to pursue e-Learning. However, the problem that e-Learning has to be Web-enabled (World Wide Web enabled) and Internet-based creates a technical and managerial barrier limits its development and lack the mobility. In our research, we aim to apply Mobile Technology with Learning Technology to overcome this problem. 　　Our research focuses on the design of a mobile learning (m-Learning) model that supports learning anywhere, anytime and any form. Beside, we develop an approach to integrate with knowledge repository. The learning scope will not be limited to instructional courseware. It includes organizational knowledge. The search assistant helps user to access relevant information with minimal effort and reduce the amount of information that needs to be transmitted.

In this thesis, the studies mainly focus on recent trends in novel MIMO antennas for indoor wireless communication system. Firstly, we propose a novel MIMO antenna for access-point application. This proposed antenna can reduce the lateral length of the conventional access-point antenna for MIMO application. Then, we present MIMO antenna designs for mobile devices such as PDA phones and laptop computers. Although these two devices are of different configurations, the PIFAs are applicable in these two devices, and their design rules are basically the same. Thus, for this study, the design consideration of the MIMO antenna will focus on S-parameter analysis. Detailed antenna designs and experimental results are presented and discussed in this thesis.

This study explores the application of wireless local area network (WLAN) in mobile learning. Although still in its infancy, Taiwan¡¦s government has devoted much resource on mobile learning as the extention of e-Taiwan project. National museums are among the key projects where the effectiveness of mobile learning can be soundly demonstrated. Taking national museums as observing objects, this study examines whether museum visitors appreciate WLAN environment within which personal digital assistants (PDA) operate as mobile educational tools. It further explores the key success factors that leads to successful deployment of mobile learning system. The researcher conducted a two-wave survey, firstly on museum visiters then on museum and e-learning experts for data gathering. Using analytical hierarchy process (AHP) as the research method, this study filters out the priority setting of those six categories as follows according to their significance: learning content, network connection, interface design, mareking and promotion, and business model. It also shows that the priority setting might change as a matter of time. As far as implication for education is concerned, the study suggests that, in the learning space of museum, PDA equipped with WLAN proves to be an appropriate mobile learning tool, notably useful in conducting blending learning and self-directed learning. Such finding should contribute to the understanding and further deployment of mobile learning activities in the context of museums. Keywords: wireless local area network (WLAN), mobile learning, blending learning, self-directed learning, personal digital assistant (PDA), fuzzy analytical hierarchy process (FAHP), key success factors, museum

Handheld devices have a limited amount of screen real estate. If a handheld device could take advantage of larger screens, it would create a more powerful user interface and environment. As time progresses, Moore's law predicts that the computational power of handheld devices will increase dramatically in the future, promoting the interaction with a larger screen. Users can then use their peripheral vision to recognize spatial relationships between objects and solve problems more easily with this integrated system. In the spillable environment, the handheld device uses a DiamondTouch Table, a large, touch-sensitive horizontal table, to enhance the viewing environment. When the user moves the handheld device on the DiamondTouch, the orientation of the application changes accordingly. A user can let another person see the application by rotating the handheld device in that person's direction. A user could conveniently use this system in a public area. In a business meeting, a user can easily show documents and presentations to other users around the DiamondTouch table. In an academic setting, a tutor could easily explain a concept to a student. A user could effortlessly do all of this while having all of his/her information on the handheld device. A wide range of applications could be used in these types of settings.