The concept, structure and mechanism of industrial digital twin systems

Digital twin was originally and firstly researched in manufacturing, and is now widely and maturely used for application in industries. Recent theoretical studies and technical applications mainly focus on the definition of the digital twin, the integration of design and manufacture based on digital twin, and the fault diagnosis and operation maintenance of products on the basis of the digital twin. There are very few studies on the characteristics, system composition, logical architecture, and system operation mode of digital twin systems applied on industrial products. To fill the gap above, this paper proposes the concept of industrial Digital Twin System (iDTS) and summarizes the typical characteristics of iDTS, based on the comparison of different types of digital twin systems, including people-centered thinking, "human-machine-environment" mutual fusion, high fidelity of the system and complexity of twin model. iDTS integrates these characteristics with the functional structure composed of physical layer, perception layer, twin layer, application layer, and control layer. In addition, the maturity model of iDTS is developed to describe the maturity stage of iDTS, along with the life cycle progress of products or systems. Lastly, this paper analyzes four iDTS operation modes and verifies the feasibility of the proposed iDTS with typical cases for specific industrial application scenarios

Experiencing the academic library in the Digital Age: From information seeking and user experience to human information interaction

The Digital Age, marked by the prevalent usage of digital technologies and explosion of digital information, has changed the way we communicate and interact with information, and prompts us to think about how it is influencing and transforming user experience with and within academic libraries. For academic libraries whilst their relationships with users may have shifted so too have their audiences. Internationalisation in higher education (HE) institutions has brought greater student diversity and requirements that should be understood to improve student experience and satisfaction. At the heart of HE, academic libraries serve a significant role in students’ learning and researching and their experience in the academic library constitutes an essential part of the learning experience. Within an interpretive paradigm, this thesis explores how international Chinese students experience the UK academic library in the Digital Age. Mixed methods research was conducted with a largely qualitative stance to explore the complexity of library user experience and to investigate library service delivery in order to enhance the future library user experience design. Library log analysis investigated what students do in the academic library through looking into their information seeking behaviour; cognitive mapping and semi-structured interviews were used to examine how students think and feel about the academic library by probing into their user experience. Demonstrating the complexity and multi-layered characteristics of context, this thesis proposed separating contexts to analyse and understand students’ library experience in distinct contexts. The findings developed an original framework theory of ‘context-perception-sense-making’ to depict a holistic picture of students’ library experience, identifying two vital elements, context and perception, which trigger, shape and alter students’ library experience. This thesis brings together the essential components of information seeking behaviour and user experience into the context of the academic library and defines students’ relationships with and within the library in new ways

No Substitute for Experience

The twenty-sixth of December 2012 marked an important date in Chinese military history—the fourth anniversary of China\u27s furthest and most extensive naval operations to date, the ongoing antipiracy deployments in the Gulf of Aden. In the first-ever simultaneous three-fleet public display, China\u27s North Sea Fleet, East Sea Fleet, and South Sea Fleet all held open day activities. The guided-missile destroyers Qingdao, Guangzhou, and Shenzhen and guided-missile frigate Zhoushan, together with their associated helicopters and personnel, were visited by more than eight thousand people from all sectors of the society at the port cities after which they are named.https://digital-commons.usnwc.edu/cmsi-red-books/1009/thumbnail.jp

The People of the PLA 2.0

The 27th annual People’s Liberation Army (PLA) Conference—“The People in the PLA” 2.0—revisited a theme first explored at the 2006 conference but understudied since. This volume examines how the structure, education, training, and recruitment of PLA personnel have changed in the last decade and in the Xi Jinping era. Structural changes in the PLA have centered around two poles: improving the warfighting readiness of the PLA and strengthening Communist Party of China (CPC) control of the PLA. Reforms to the political work system, the evolution of the Second Artillery into the Rocket Force, and expansion of the PLA’s foreign-based force posture all indicate that the PLA is accelerating its drive to become a world-class military. To succeed in future “informatized” wars, the PLA recognizes it must improve its members’ education level. It seeks to leverage better China’s civilian education system while also addressing legacy issues that frustrate professional military education and the care of its veterans. The PLA is also reforming joint education and seeking insight from its exchanges and interactions with other nations’ militaries. The revamping of its academic institutions to support better its most technical and advanced entities for network warfare and other operations is indicative of the PLA’s fast-paced evolution.https://press.armywarcollege.edu/monographs/1940/thumbnail.jp