Results 31 to 40 of about 1,001,571 (236)

Modeling the thermal behavior of biosphere 2 in a non-controlled environment using bond graphs [PDF]

open access: yes, 1996
Biosphere 2 is a closed ecological system of high complexity built to deepen the understanding of ecological systems, to study the dynamics of closed ecologies, and to learn to control their behavior.
Cellier, François E.   +2 more
core   +1 more source

Feedback Control as a Framework for Understanding Tradeoffs in Biology [PDF]

open access: yes, 2014
Control theory arose from a need to control synthetic systems. From regulating steam engines to tuning radios to devices capable of autonomous movement, it provided a formal mathematical basis for understanding the role of feedback in the stability (or ...
Ankarali, Mustafa Mert   +9 more
core   +1 more source

Mild cycles open closed communities to ecological restoration

open access: yesRestoration Ecology, 2020
Species loss is a global issue. With up to a million species at risk and insufficient protected area to maintain the world's biodiversity, humanity will increasingly need to rely on species re‐introductions to locally restore diversity and function ...
Ann‐Kathrin Tielke   +2 more
semanticscholar   +1 more source

Modeling and Simulation Tools for Smart Local Energy Systems: A Review with a Focus on Emerging Closed Ecological Systems’ Application

open access: yesApplied Sciences
The growing importance of microgrids—linking buildings with distributed energy resources and storage—is driving the evolution of Smart Local Energy Systems (SLESs).
Andrzej Ożadowicz
doaj   +1 more source

Rangelands Vegetation under Different Management Systems and Growth Stages in North Darfur State, Sudan (Range Attributes)

open access: yesInternational Journal of Environment, 2014
This study was conducted at Um Kaddada, North Darfur State, Sudan, at two sites (closed and open) for two consecutive seasons 2008 and 2009 during flowering and seed setting stages to evaluate range attributes at the locality.
Mohamed AAMA Mohamed   +2 more
doaj   +1 more source

People-Centric Nature-Based Land Restoration through Agroforestry: A Typology

open access: yesLand, 2020
Restoration depends on purpose and context. At the core it entails innovation to halt ongoing and reverse past degradation. It aims for increased functionality, not necessarily recovering past system states.
Meine van Noordwijk   +7 more
doaj   +1 more source

Day-Night and Inter-Habitat Variations in Ant Assemblages in a Mosaic Agroforestry Landscape

open access: yesLand, 2021
Throughout the Mediterranean basin, the long-term interaction between human activities and natural processes has led to the formation of unique ecosystems whose biodiversity may be higher than that of the “original” systems.
Filippo Frizzi   +4 more
doaj   +1 more source

Canary in the coliform mine: Exploring the industrial application limits of a microbial respiration alarm system.

open access: yesPLoS ONE, 2021
Fundamental ecological principles of ecosystem-level respiration are extensively applied in greenhouse gas and elemental cycle studies. A laboratory system termed CEMS (Carbon Dioxide Evolution Measurement System), developed to explore microbial biofilm ...
Wendy Stone   +3 more
doaj   +1 more source

Opportunities for floating closed containment systems for fish farming

open access: yesJournal of Aquaculture & Marine Biology, 2020
While wild fish stocks are depleting due to over fishing, the fish food industry is trying to keep up with the increasing demand. Concerns are increasing about the environmental impact of open net cages on wild ecosystems since open net cages rely ...
J. Wiegerink
semanticscholar   +1 more source

Sustainable Transport Packaging: Evaluation and Feasibility for Different Use Cases

open access: yesLogi, 2021
The continuous increase in e-commerce shipping is causing a critical amount of transport packaging waste. The aim of this paper is a comprehensive presentation of different types of innovations for sustainable transport packaging.
Pfoser Sarah   +5 more
doaj   +1 more source

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