On some fundamental issues about the safety of marine structures

2020 ◽  
pp. 147509022095102
Author(s):  
WC Cui
Keyword(s):  
Safety Analysis ◽  
Marine Structures ◽  
Marine Structure ◽  
The Future ◽  
Key Issues ◽  
Important Field

Safety analysis and prediction of a marine structure is a very important field which has received attention from many scientists. Prof. R. Ajit Shenoi has made significant contributions in investigating various issues in this field. In this invited paper of recollection nature, a philosophical attitude is taken to re-examine some fundamental issues about the safety of marine structures with a purpose to identify the key issues to be solved in the future. It is intended to help young generations of scientists how to focus on more important problems related to the safety of marine structures.

Vibration control of network-based offshore structures subject to earthquakes

2021 ◽  
pp. 014233122110259
Author(s):  
Hua-Nv Feng ◽  
Bao-Lin Zhang ◽  
Yan-Dong Zhao ◽  
Hui Ma ◽  
Hao Su ◽  
...  
Keyword(s):  
Sufficient Conditions ◽  
Offshore Structures ◽  
Delay Systems ◽  
Linear Matrix ◽  
Seismic Responses ◽  
Marine Structures ◽  
Damping Control ◽  
Marine Structure ◽  
Uncertain Model ◽  
Control Scheme

Marine structures are inevitably influenced by parametric perturbations as well as multiple external loadings. Among these loadings, earthquake is generally more destructive and unpredictable than others. It is significant to develop effective active control schemes to guarantee the safety, stability, and integrity of marine structures subject to earthquakes and parametric perturbations. In this paper, the problem of networked [Formula: see text] robust damping control is addressed to stabilize a marine structure subject to earthquakes. First, in consideration of perturbations of the structure parameters, an uncertain model of the networked marine structure under earthquakes is presented. Second, a robust networked [Formula: see text] control scheme is presented to suppress seismic responses of the structure. By using stability theory of time-delay systems, several sufficient conditions on robust stability of the networked marine structure system are obtained, and the linear matrix inequality methods are utilized to solve the gain matrix of the controller. Finally, simulation indicates that compared with the traditional robust [Formula: see text] control and the proposed networked [Formula: see text] control, the seismic responses amplitudes of the marine structure under the two controllers are almost the same, while the latter is more economic than the former.

scholarly journals Rising Sino-U.S. Competition in Artificial Intelligence

2018 ◽  
Vol 04 (02) ◽  
pp. 241-258 ◽  
Author(s):  
You Wang ◽  
Dingding Chen
Keyword(s):  
Artificial Intelligence ◽  
United States ◽  
The United States ◽  
Cutting Edge ◽  
The Other ◽  
Strategic Competition ◽  
Bilateral Relations ◽  
The Future ◽  
Important Field ◽  
Political Security

Both China and the United States are international leaders in artificial intelligence (AI). Although there remains a significant gap between them in cutting-edge technologies, and they have adopted different methods of planning and implementation, both countries have been mobilizing national resources and formulating policies to promote AI development, so as to achieve a strategic advantage over the other, especially against the backdrop of ever more intense and complicated strategic competition between them in recent years. As an epitome of their changing relationship, Sino-U.S. competition in AI development is manifested in economic, political, security, technological and other fields. It is expected that artificial intelligence will become an even more important field of competition between China and the United States, and that the trends of AI development and competition will to some extent determine the future dynamics of their bilateral relations.

scholarly journals Children being children: the value of an “importance filter”

2007 ◽  
Vol 1 (1) ◽  
pp. 15 ◽  
Author(s):  
Dr Jonathon Sargeant
Keyword(s):  
Information Processing ◽  
Young Children ◽  
Social Issues ◽  
Global Issues ◽  
Making Sense ◽  
The World ◽  
The Future ◽  
Key Issues ◽  
Internal Information ◽  
Processing Mechanism

The perspectives of young children are of considerable interest to the community yet remains largely misunderstood. This paper posits that children demonstrate an optimistic view of the world and the future that is also encased in a deeper understanding of key global, local, and social issues than previously thought. This study challenges the notion that children are either adversely affected by knowledge or ignorant of global issues outside their control. The effects of external media and the reputed social decay of society and the pessimistic worldview reportedly held by young children are questioned. In acknowledging the children’s understanding of key issues, this research identifies that children engage in an internal metacognitive processing of information that allows them to maintain their optimistic view of the world. This paper introduces the concept of an Importance Filter, an internal information processing mechanism that assists children in making sense of their world.

Pathways to the Future? An Initial Assessment of RDA Strategies and their Contribution to Integrated Regional Development

2001 ◽  
Vol 16 (2) ◽  
pp. 142-159 ◽  
Author(s):  
Peter Roberts ◽  
Paul Benneworth
Keyword(s):  
Regional Development ◽  
Initial Assessment ◽  
Action Plans ◽  
General Terms ◽  
Economic Strategies ◽  
Subject Specific ◽  
The Future ◽  
Key Issues ◽  
Development Agencies

The English Regional Development Agencies (RDAs) were established in April 1999 as part of the wider package of devolution measures. One of the first tasks undertaken by the RDAs was the preparation of Region al Economic Strategies (RESs). These strategies were intended to be a means of securing agreement on a single regional vision and programme of development. However, the RDAs are n ot the only actors present in the English regions and the RESs are not the only region al-level planning exercises. This paper reviews the guidance given to RDAs regarding the preparation and content of RESs. It also provides an initial assessment of the strategy documents an d the extent to which they are coordinated with other regional plans and programmes. The eight RESs differ in terms of their structure, content and emphasis. In general terms, and accepting the constraints under which they were prepared, it is clear that they represent positive attempts to develop strategies for the regions. Key issues for the future include the need for RDAs to agree detailed subject-specific action plans, to establish stronger links with other regional actors and to en sure that they add value to regional development.

A kingdom of horror

2015 ◽  
Author(s):  
Johnny Walker
Keyword(s):  
The Future ◽  
Key Issues

This chapter, as a means of closure, will reflect briefly on the key issues that have been addressed over the last six chapters, before considering some of the directions that the study of British horror cinema could – or, indeed, should – take in the future. It is hoped that this chapter will provide a springboard for further scholarship that will be as dynamic as the films themselves.

Virtual Teams in the Traditional Classroom

2008 ◽  
pp. 789-805
Author(s):  
Stephen A. Rains ◽  
Craig R. Scott
Keyword(s):  
Virtual Teams ◽  
New Technologies ◽  
Traditional Classroom ◽  
Educational Setting ◽  
Electronic Meeting Systems ◽  
The Future ◽  
Key Issues ◽  
Collaboration Tools ◽  
Level Of Training ◽  
Different Levels

This chapter examines the technologies available to virtual teams and issues associated with training virtual teams. We first evaluate the benefits and limitations of technologies to aid communication and collaboration. We consider the merits and limitations of asynchronous and synchronous discussion tools, groupware and collaboration tools, and electronic meeting systems. We then offer three different levels of training possible for virtual teams and discuss some key issues associated with training. Each level of training varies in intensity and is dependent upon the nature of the assignment and team objectives. The chapter concludes with some predictions and recommendations about the future of new technologies and virtual teams in the educational setting. Throughout the chapter, special considerations are made for those virtual teams operating in the traditional classroom.

Reflections on Knowledge Management Research and Practice

2011 ◽  
pp. 1-8
Author(s):  
Murray E. Jennex
Keyword(s):  
Knowledge Management ◽  
Management Research ◽  
Research And Practice ◽  
The Third ◽  
The Future ◽  
Key Issues

This is the third volume in the Advances in Knowledge Management and I thought it appropriate to start this volume with some reflection on where KM is at and where it is going. This chapter reflects on two key issues—the need to ensure KM is relevant and the risk of KM becoming a fad. The chapter concludes with reflection on the future of KM.

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