2,244 research outputs found
The 10-tenets of adaptive management and sustainability: an holistic framework for understanding and managing the socio-ecological system
The three basic principles of sustainable development, relating to ecology, economy and society, have long been embedded within national and international strategies. In recent years we have augmented these principles by a further seven considerations giving rise to the so-called 10-tenets of sustainable management. Whilst theoretically appealing, discussion of the tenets to date has been largely generic and qualitative and, until the present paper, there has been no formal and quantitative application of these tenets to an actual example. To promote the concept of successful and sustainable environmental management there is the need to develop a robust and practical framework to accommodate value judgements relating to each of the tenets. Although, as originally presented, the tenets relate specifically to management measures, they may also be applied directly to a specific development or activity. This paper examines the application of the tenets in both of these contexts, and considers their incorporation into an assessment tool to help visualise and quantify issues of sustainability
Gossamer Albatross
Steve Elliott was active in the hobby of hang gliding, and was invited to join the Gossamer Albatross team in 1979. He assisted in its development and testing, and was there in a Zodiac raft when it became the first human powered aircraft to cross the English Channel and win the ÂŁ100,000 Kremer Prize
Proof of Concept Research
Researchers often pursue proof of concept research, but criteria for evaluating such research remain poorly specified. This paper proposes a general framework for proof of concept research that knits together and augments earlier discussions. The framework includes prototypes, proof of concept demonstrations, and post facto demonstrations. With a case from theoretical evolutionary genetics, the paper illustrates the general framework and articulates some of the reasoning strategies used within that field. This paper provides both specific tools with which to understand how researchers evaluate models in theoretical evolutionary genetics, and general tools that apply to proof of concept research more generally
The effects of internal resonances in vibration isolators under absolute velocity feedback control
Conventional vibration isolators are usually assumed to be massless for modelling purposes, which tends to overestimate the isolator performance because the internal resonances (IRs) due to the inertia of the isolator are neglected. Previous research on the IR problem does not clarify all the characteristics of distributed parameter isolators. Furthermore, with the development of active vibration isolation, which can avoid the compromise in the choice of damping in conventional passive isolation systems, the effects of IRs in isolators on the control performance and stability for commonly used control strategies need to be quantified. In this study the effects of IRs on the control performance and stability of an absolute velocity feedback (AVF) control system are presented. A stability condition for AVF control system is proposed and a simple approach to stabilize the control system is studied. Experimental work to validate the theoretical results is also presented
National Security Council Role-Playing Simulation
The first-year seminar Global Challenges fosters critical thinking by tasking honors students (n = 16) with role-playing in the Council on Foreign Relations’ Model Diplomacy program. Curricular objectives and assignments are presented
Middle Park, Colorado, rare lichen survey results
Presented at the 11th symposium held on October 3, 2014 in Fort Collins, Colorado
2013 Festuca hallii (Vasey) piper directed surveys on the Arapaho-Roosevelt National Forests (ARP) in Colorado
Presented at the 11th symposium held on October 3, 2014 in Fort Collins, Colorado
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